1 /*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by Edward Tomasz Napierala 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * substantially similar to the "NO WARRANTY" disclaimer below 17 * ("Disclaimer") and any redistribution must be conditioned upon 18 * including a substantially similar Disclaimer requirement for further 19 * binary redistribution. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $ 35 */ 36 /* 37 * CAM Target Layer, a SCSI device emulation subsystem. 38 * 39 * Author: Ken Merry <ken@FreeBSD.org> 40 */ 41 42 #define _CTL_C 43 44 #include <sys/cdefs.h> 45 __FBSDID("$FreeBSD$"); 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/types.h> 51 #include <sys/kthread.h> 52 #include <sys/bio.h> 53 #include <sys/fcntl.h> 54 #include <sys/lock.h> 55 #include <sys/module.h> 56 #include <sys/mutex.h> 57 #include <sys/condvar.h> 58 #include <sys/malloc.h> 59 #include <sys/conf.h> 60 #include <sys/ioccom.h> 61 #include <sys/queue.h> 62 #include <sys/sbuf.h> 63 #include <sys/smp.h> 64 #include <sys/endian.h> 65 #include <sys/sysctl.h> 66 67 #include <cam/cam.h> 68 #include <cam/scsi/scsi_all.h> 69 #include <cam/scsi/scsi_da.h> 70 #include <cam/ctl/ctl_io.h> 71 #include <cam/ctl/ctl.h> 72 #include <cam/ctl/ctl_frontend.h> 73 #include <cam/ctl/ctl_frontend_internal.h> 74 #include <cam/ctl/ctl_util.h> 75 #include <cam/ctl/ctl_backend.h> 76 #include <cam/ctl/ctl_ioctl.h> 77 #include <cam/ctl/ctl_ha.h> 78 #include <cam/ctl/ctl_private.h> 79 #include <cam/ctl/ctl_debug.h> 80 #include <cam/ctl/ctl_scsi_all.h> 81 #include <cam/ctl/ctl_error.h> 82 83 struct ctl_softc *control_softc = NULL; 84 85 /* 86 * Size and alignment macros needed for Copan-specific HA hardware. These 87 * can go away when the HA code is re-written, and uses busdma for any 88 * hardware. 89 */ 90 #define CTL_ALIGN_8B(target, source, type) \ 91 if (((uint32_t)source & 0x7) != 0) \ 92 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 93 else \ 94 target = (type)source; 95 96 #define CTL_SIZE_8B(target, size) \ 97 if ((size & 0x7) != 0) \ 98 target = size + (0x8 - (size & 0x7)); \ 99 else \ 100 target = size; 101 102 #define CTL_ALIGN_8B_MARGIN 16 103 104 /* 105 * Template mode pages. 106 */ 107 108 /* 109 * Note that these are default values only. The actual values will be 110 * filled in when the user does a mode sense. 111 */ 112 static struct copan_power_subpage power_page_default = { 113 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 114 /*subpage*/ PWR_SUBPAGE_CODE, 115 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 116 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 117 /*page_version*/ PWR_VERSION, 118 /* total_luns */ 26, 119 /* max_active_luns*/ PWR_DFLT_MAX_LUNS, 120 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 121 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 122 0, 0, 0, 0, 0, 0} 123 }; 124 125 static struct copan_power_subpage power_page_changeable = { 126 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 127 /*subpage*/ PWR_SUBPAGE_CODE, 128 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 129 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 130 /*page_version*/ 0, 131 /* total_luns */ 0, 132 /* max_active_luns*/ 0, 133 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 134 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135 0, 0, 0, 0, 0, 0} 136 }; 137 138 static struct copan_aps_subpage aps_page_default = { 139 APS_PAGE_CODE | SMPH_SPF, //page_code 140 APS_SUBPAGE_CODE, //subpage 141 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 142 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 143 APS_VERSION, //page_version 144 0, //lock_active 145 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 147 0, 0, 0, 0, 0} //reserved 148 }; 149 150 static struct copan_aps_subpage aps_page_changeable = { 151 APS_PAGE_CODE | SMPH_SPF, //page_code 152 APS_SUBPAGE_CODE, //subpage 153 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 154 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 155 0, //page_version 156 0, //lock_active 157 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 158 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 159 0, 0, 0, 0, 0} //reserved 160 }; 161 162 static struct copan_debugconf_subpage debugconf_page_default = { 163 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 164 DBGCNF_SUBPAGE_CODE, /* subpage */ 165 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 166 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 167 DBGCNF_VERSION, /* page_version */ 168 {CTL_TIME_IO_DEFAULT_SECS>>8, 169 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 170 }; 171 172 static struct copan_debugconf_subpage debugconf_page_changeable = { 173 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 174 DBGCNF_SUBPAGE_CODE, /* subpage */ 175 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 176 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 177 0, /* page_version */ 178 {0xff,0xff}, /* ctl_time_io_secs */ 179 }; 180 181 static struct scsi_format_page format_page_default = { 182 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 183 /*page_length*/sizeof(struct scsi_format_page) - 2, 184 /*tracks_per_zone*/ {0, 0}, 185 /*alt_sectors_per_zone*/ {0, 0}, 186 /*alt_tracks_per_zone*/ {0, 0}, 187 /*alt_tracks_per_lun*/ {0, 0}, 188 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 189 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 190 /*bytes_per_sector*/ {0, 0}, 191 /*interleave*/ {0, 0}, 192 /*track_skew*/ {0, 0}, 193 /*cylinder_skew*/ {0, 0}, 194 /*flags*/ SFP_HSEC, 195 /*reserved*/ {0, 0, 0} 196 }; 197 198 static struct scsi_format_page format_page_changeable = { 199 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 200 /*page_length*/sizeof(struct scsi_format_page) - 2, 201 /*tracks_per_zone*/ {0, 0}, 202 /*alt_sectors_per_zone*/ {0, 0}, 203 /*alt_tracks_per_zone*/ {0, 0}, 204 /*alt_tracks_per_lun*/ {0, 0}, 205 /*sectors_per_track*/ {0, 0}, 206 /*bytes_per_sector*/ {0, 0}, 207 /*interleave*/ {0, 0}, 208 /*track_skew*/ {0, 0}, 209 /*cylinder_skew*/ {0, 0}, 210 /*flags*/ 0, 211 /*reserved*/ {0, 0, 0} 212 }; 213 214 static struct scsi_rigid_disk_page rigid_disk_page_default = { 215 /*page_code*/SMS_RIGID_DISK_PAGE, 216 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 217 /*cylinders*/ {0, 0, 0}, 218 /*heads*/ CTL_DEFAULT_HEADS, 219 /*start_write_precomp*/ {0, 0, 0}, 220 /*start_reduced_current*/ {0, 0, 0}, 221 /*step_rate*/ {0, 0}, 222 /*landing_zone_cylinder*/ {0, 0, 0}, 223 /*rpl*/ SRDP_RPL_DISABLED, 224 /*rotational_offset*/ 0, 225 /*reserved1*/ 0, 226 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 227 CTL_DEFAULT_ROTATION_RATE & 0xff}, 228 /*reserved2*/ {0, 0} 229 }; 230 231 static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 232 /*page_code*/SMS_RIGID_DISK_PAGE, 233 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 234 /*cylinders*/ {0, 0, 0}, 235 /*heads*/ 0, 236 /*start_write_precomp*/ {0, 0, 0}, 237 /*start_reduced_current*/ {0, 0, 0}, 238 /*step_rate*/ {0, 0}, 239 /*landing_zone_cylinder*/ {0, 0, 0}, 240 /*rpl*/ 0, 241 /*rotational_offset*/ 0, 242 /*reserved1*/ 0, 243 /*rotation_rate*/ {0, 0}, 244 /*reserved2*/ {0, 0} 245 }; 246 247 static struct scsi_caching_page caching_page_default = { 248 /*page_code*/SMS_CACHING_PAGE, 249 /*page_length*/sizeof(struct scsi_caching_page) - 2, 250 /*flags1*/ SCP_DISC | SCP_WCE, 251 /*ret_priority*/ 0, 252 /*disable_pf_transfer_len*/ {0xff, 0xff}, 253 /*min_prefetch*/ {0, 0}, 254 /*max_prefetch*/ {0xff, 0xff}, 255 /*max_pf_ceiling*/ {0xff, 0xff}, 256 /*flags2*/ 0, 257 /*cache_segments*/ 0, 258 /*cache_seg_size*/ {0, 0}, 259 /*reserved*/ 0, 260 /*non_cache_seg_size*/ {0, 0, 0} 261 }; 262 263 static struct scsi_caching_page caching_page_changeable = { 264 /*page_code*/SMS_CACHING_PAGE, 265 /*page_length*/sizeof(struct scsi_caching_page) - 2, 266 /*flags1*/ 0, 267 /*ret_priority*/ 0, 268 /*disable_pf_transfer_len*/ {0, 0}, 269 /*min_prefetch*/ {0, 0}, 270 /*max_prefetch*/ {0, 0}, 271 /*max_pf_ceiling*/ {0, 0}, 272 /*flags2*/ 0, 273 /*cache_segments*/ 0, 274 /*cache_seg_size*/ {0, 0}, 275 /*reserved*/ 0, 276 /*non_cache_seg_size*/ {0, 0, 0} 277 }; 278 279 static struct scsi_control_page control_page_default = { 280 /*page_code*/SMS_CONTROL_MODE_PAGE, 281 /*page_length*/sizeof(struct scsi_control_page) - 2, 282 /*rlec*/0, 283 /*queue_flags*/0, 284 /*eca_and_aen*/0, 285 /*flags4*/SCP_TAS, 286 /*aen_holdoff_period*/{0, 0}, 287 /*busy_timeout_period*/{0, 0}, 288 /*extended_selftest_completion_time*/{0, 0} 289 }; 290 291 static struct scsi_control_page control_page_changeable = { 292 /*page_code*/SMS_CONTROL_MODE_PAGE, 293 /*page_length*/sizeof(struct scsi_control_page) - 2, 294 /*rlec*/SCP_DSENSE, 295 /*queue_flags*/0, 296 /*eca_and_aen*/0, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301 }; 302 303 304 /* 305 * XXX KDM move these into the softc. 306 */ 307 static int rcv_sync_msg; 308 static int persis_offset; 309 static uint8_t ctl_pause_rtr; 310 static int ctl_is_single = 1; 311 static int index_to_aps_page; 312 313 SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314 static int worker_threads = -1; 315 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 316 &worker_threads, 1, "Number of worker threads"); 317 static int verbose = 0; 318 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 319 &verbose, 0, "Show SCSI errors returned to initiator"); 320 321 /* 322 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 323 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0) and 324 * Logical Block Provisioning (0xB2) 325 */ 326 #define SCSI_EVPD_NUM_SUPPORTED_PAGES 7 327 328 static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 329 int param); 330 static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 331 static int ctl_init(void); 332 void ctl_shutdown(void); 333 static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 334 static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 335 static void ctl_ioctl_online(void *arg); 336 static void ctl_ioctl_offline(void *arg); 337 static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 338 static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 339 static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 340 static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 341 static int ctl_ioctl_submit_wait(union ctl_io *io); 342 static void ctl_ioctl_datamove(union ctl_io *io); 343 static void ctl_ioctl_done(union ctl_io *io); 344 static void ctl_ioctl_hard_startstop_callback(void *arg, 345 struct cfi_metatask *metatask); 346 static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 347 static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 348 struct ctl_ooa *ooa_hdr, 349 struct ctl_ooa_entry *kern_entries); 350 static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 351 struct thread *td); 352 static uint32_t ctl_map_lun(int port_num, uint32_t lun); 353 static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 354 #ifdef unused 355 static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 356 uint32_t targ_target, uint32_t targ_lun, 357 int can_wait); 358 static void ctl_kfree_io(union ctl_io *io); 359 #endif /* unused */ 360 static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 361 struct ctl_be_lun *be_lun, struct ctl_id target_id); 362 static int ctl_free_lun(struct ctl_lun *lun); 363 static void ctl_create_lun(struct ctl_be_lun *be_lun); 364 /** 365 static void ctl_failover_change_pages(struct ctl_softc *softc, 366 struct ctl_scsiio *ctsio, int master); 367 **/ 368 369 static int ctl_do_mode_select(union ctl_io *io); 370 static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 371 uint64_t res_key, uint64_t sa_res_key, 372 uint8_t type, uint32_t residx, 373 struct ctl_scsiio *ctsio, 374 struct scsi_per_res_out *cdb, 375 struct scsi_per_res_out_parms* param); 376 static void ctl_pro_preempt_other(struct ctl_lun *lun, 377 union ctl_ha_msg *msg); 378 static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 379 static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 380 static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 381 static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 382 static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 383 int alloc_len); 384 static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 385 int alloc_len); 386 static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 387 static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 388 static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 389 static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 390 static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 391 static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 392 union ctl_io *ooa_io); 393 static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 394 union ctl_io *starting_io); 395 static int ctl_check_blocked(struct ctl_lun *lun); 396 static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 397 struct ctl_lun *lun, 398 const struct ctl_cmd_entry *entry, 399 struct ctl_scsiio *ctsio); 400 //static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 401 static void ctl_failover(void); 402 static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 403 struct ctl_scsiio *ctsio); 404 static int ctl_scsiio(struct ctl_scsiio *ctsio); 405 406 static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 407 static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 408 ctl_ua_type ua_type); 409 static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 410 ctl_ua_type ua_type); 411 static int ctl_abort_task(union ctl_io *io); 412 static int ctl_abort_task_set(union ctl_io *io); 413 static int ctl_i_t_nexus_reset(union ctl_io *io); 414 static void ctl_run_task(union ctl_io *io); 415 #ifdef CTL_IO_DELAY 416 static void ctl_datamove_timer_wakeup(void *arg); 417 static void ctl_done_timer_wakeup(void *arg); 418 #endif /* CTL_IO_DELAY */ 419 420 static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 421 static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 422 static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 423 static void ctl_datamove_remote_write(union ctl_io *io); 424 static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 425 static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 426 static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 427 static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 428 ctl_ha_dt_cb callback); 429 static void ctl_datamove_remote_read(union ctl_io *io); 430 static void ctl_datamove_remote(union ctl_io *io); 431 static int ctl_process_done(union ctl_io *io); 432 static void ctl_lun_thread(void *arg); 433 static void ctl_work_thread(void *arg); 434 static void ctl_enqueue_incoming(union ctl_io *io); 435 static void ctl_enqueue_rtr(union ctl_io *io); 436 static void ctl_enqueue_done(union ctl_io *io); 437 static void ctl_enqueue_isc(union ctl_io *io); 438 static const struct ctl_cmd_entry * 439 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 440 static const struct ctl_cmd_entry * 441 ctl_validate_command(struct ctl_scsiio *ctsio); 442 static int ctl_cmd_applicable(uint8_t lun_type, 443 const struct ctl_cmd_entry *entry); 444 445 /* 446 * Load the serialization table. This isn't very pretty, but is probably 447 * the easiest way to do it. 448 */ 449 #include "ctl_ser_table.c" 450 451 /* 452 * We only need to define open, close and ioctl routines for this driver. 453 */ 454 static struct cdevsw ctl_cdevsw = { 455 .d_version = D_VERSION, 456 .d_flags = 0, 457 .d_open = ctl_open, 458 .d_close = ctl_close, 459 .d_ioctl = ctl_ioctl, 460 .d_name = "ctl", 461 }; 462 463 464 MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 465 MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 466 467 static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 468 469 static moduledata_t ctl_moduledata = { 470 "ctl", 471 ctl_module_event_handler, 472 NULL 473 }; 474 475 DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 476 MODULE_VERSION(ctl, 1); 477 478 static struct ctl_frontend ioctl_frontend = 479 { 480 .name = "ioctl", 481 }; 482 483 static void 484 ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 485 union ctl_ha_msg *msg_info) 486 { 487 struct ctl_scsiio *ctsio; 488 489 if (msg_info->hdr.original_sc == NULL) { 490 printf("%s: original_sc == NULL!\n", __func__); 491 /* XXX KDM now what? */ 492 return; 493 } 494 495 ctsio = &msg_info->hdr.original_sc->scsiio; 496 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 497 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 498 ctsio->io_hdr.status = msg_info->hdr.status; 499 ctsio->scsi_status = msg_info->scsi.scsi_status; 500 ctsio->sense_len = msg_info->scsi.sense_len; 501 ctsio->sense_residual = msg_info->scsi.sense_residual; 502 ctsio->residual = msg_info->scsi.residual; 503 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 504 sizeof(ctsio->sense_data)); 505 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 506 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 507 ctl_enqueue_isc((union ctl_io *)ctsio); 508 } 509 510 static void 511 ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 512 union ctl_ha_msg *msg_info) 513 { 514 struct ctl_scsiio *ctsio; 515 516 if (msg_info->hdr.serializing_sc == NULL) { 517 printf("%s: serializing_sc == NULL!\n", __func__); 518 /* XXX KDM now what? */ 519 return; 520 } 521 522 ctsio = &msg_info->hdr.serializing_sc->scsiio; 523 #if 0 524 /* 525 * Attempt to catch the situation where an I/O has 526 * been freed, and we're using it again. 527 */ 528 if (ctsio->io_hdr.io_type == 0xff) { 529 union ctl_io *tmp_io; 530 tmp_io = (union ctl_io *)ctsio; 531 printf("%s: %p use after free!\n", __func__, 532 ctsio); 533 printf("%s: type %d msg %d cdb %x iptl: " 534 "%d:%d:%d:%d tag 0x%04x " 535 "flag %#x status %x\n", 536 __func__, 537 tmp_io->io_hdr.io_type, 538 tmp_io->io_hdr.msg_type, 539 tmp_io->scsiio.cdb[0], 540 tmp_io->io_hdr.nexus.initid.id, 541 tmp_io->io_hdr.nexus.targ_port, 542 tmp_io->io_hdr.nexus.targ_target.id, 543 tmp_io->io_hdr.nexus.targ_lun, 544 (tmp_io->io_hdr.io_type == 545 CTL_IO_TASK) ? 546 tmp_io->taskio.tag_num : 547 tmp_io->scsiio.tag_num, 548 tmp_io->io_hdr.flags, 549 tmp_io->io_hdr.status); 550 } 551 #endif 552 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 553 ctl_enqueue_isc((union ctl_io *)ctsio); 554 } 555 556 /* 557 * ISC (Inter Shelf Communication) event handler. Events from the HA 558 * subsystem come in here. 559 */ 560 static void 561 ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 562 { 563 struct ctl_softc *ctl_softc; 564 union ctl_io *io; 565 struct ctl_prio *presio; 566 ctl_ha_status isc_status; 567 568 ctl_softc = control_softc; 569 io = NULL; 570 571 572 #if 0 573 printf("CTL: Isc Msg event %d\n", event); 574 #endif 575 if (event == CTL_HA_EVT_MSG_RECV) { 576 union ctl_ha_msg msg_info; 577 578 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 579 sizeof(msg_info), /*wait*/ 0); 580 #if 0 581 printf("CTL: msg_type %d\n", msg_info.msg_type); 582 #endif 583 if (isc_status != 0) { 584 printf("Error receiving message, status = %d\n", 585 isc_status); 586 return; 587 } 588 589 switch (msg_info.hdr.msg_type) { 590 case CTL_MSG_SERIALIZE: 591 #if 0 592 printf("Serialize\n"); 593 #endif 594 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 595 if (io == NULL) { 596 printf("ctl_isc_event_handler: can't allocate " 597 "ctl_io!\n"); 598 /* Bad Juju */ 599 /* Need to set busy and send msg back */ 600 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 601 msg_info.hdr.status = CTL_SCSI_ERROR; 602 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 603 msg_info.scsi.sense_len = 0; 604 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 605 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 606 } 607 goto bailout; 608 } 609 ctl_zero_io(io); 610 // populate ctsio from msg_info 611 io->io_hdr.io_type = CTL_IO_SCSI; 612 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 613 io->io_hdr.original_sc = msg_info.hdr.original_sc; 614 #if 0 615 printf("pOrig %x\n", (int)msg_info.original_sc); 616 #endif 617 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 618 CTL_FLAG_IO_ACTIVE; 619 /* 620 * If we're in serialization-only mode, we don't 621 * want to go through full done processing. Thus 622 * the COPY flag. 623 * 624 * XXX KDM add another flag that is more specific. 625 */ 626 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 627 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 628 io->io_hdr.nexus = msg_info.hdr.nexus; 629 #if 0 630 printf("targ %d, port %d, iid %d, lun %d\n", 631 io->io_hdr.nexus.targ_target.id, 632 io->io_hdr.nexus.targ_port, 633 io->io_hdr.nexus.initid.id, 634 io->io_hdr.nexus.targ_lun); 635 #endif 636 io->scsiio.tag_num = msg_info.scsi.tag_num; 637 io->scsiio.tag_type = msg_info.scsi.tag_type; 638 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 639 CTL_MAX_CDBLEN); 640 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 641 const struct ctl_cmd_entry *entry; 642 643 entry = ctl_get_cmd_entry(&io->scsiio); 644 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 645 io->io_hdr.flags |= 646 entry->flags & CTL_FLAG_DATA_MASK; 647 } 648 ctl_enqueue_isc(io); 649 break; 650 651 /* Performed on the Originating SC, XFER mode only */ 652 case CTL_MSG_DATAMOVE: { 653 struct ctl_sg_entry *sgl; 654 int i, j; 655 656 io = msg_info.hdr.original_sc; 657 if (io == NULL) { 658 printf("%s: original_sc == NULL!\n", __func__); 659 /* XXX KDM do something here */ 660 break; 661 } 662 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 663 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 664 /* 665 * Keep track of this, we need to send it back over 666 * when the datamove is complete. 667 */ 668 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 669 670 if (msg_info.dt.sg_sequence == 0) { 671 /* 672 * XXX KDM we use the preallocated S/G list 673 * here, but we'll need to change this to 674 * dynamic allocation if we need larger S/G 675 * lists. 676 */ 677 if (msg_info.dt.kern_sg_entries > 678 sizeof(io->io_hdr.remote_sglist) / 679 sizeof(io->io_hdr.remote_sglist[0])) { 680 printf("%s: number of S/G entries " 681 "needed %u > allocated num %zd\n", 682 __func__, 683 msg_info.dt.kern_sg_entries, 684 sizeof(io->io_hdr.remote_sglist)/ 685 sizeof(io->io_hdr.remote_sglist[0])); 686 687 /* 688 * XXX KDM send a message back to 689 * the other side to shut down the 690 * DMA. The error will come back 691 * through via the normal channel. 692 */ 693 break; 694 } 695 sgl = io->io_hdr.remote_sglist; 696 memset(sgl, 0, 697 sizeof(io->io_hdr.remote_sglist)); 698 699 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 700 701 io->scsiio.kern_sg_entries = 702 msg_info.dt.kern_sg_entries; 703 io->scsiio.rem_sg_entries = 704 msg_info.dt.kern_sg_entries; 705 io->scsiio.kern_data_len = 706 msg_info.dt.kern_data_len; 707 io->scsiio.kern_total_len = 708 msg_info.dt.kern_total_len; 709 io->scsiio.kern_data_resid = 710 msg_info.dt.kern_data_resid; 711 io->scsiio.kern_rel_offset = 712 msg_info.dt.kern_rel_offset; 713 /* 714 * Clear out per-DMA flags. 715 */ 716 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 717 /* 718 * Add per-DMA flags that are set for this 719 * particular DMA request. 720 */ 721 io->io_hdr.flags |= msg_info.dt.flags & 722 CTL_FLAG_RDMA_MASK; 723 } else 724 sgl = (struct ctl_sg_entry *) 725 io->scsiio.kern_data_ptr; 726 727 for (i = msg_info.dt.sent_sg_entries, j = 0; 728 i < (msg_info.dt.sent_sg_entries + 729 msg_info.dt.cur_sg_entries); i++, j++) { 730 sgl[i].addr = msg_info.dt.sg_list[j].addr; 731 sgl[i].len = msg_info.dt.sg_list[j].len; 732 733 #if 0 734 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 735 __func__, 736 msg_info.dt.sg_list[j].addr, 737 msg_info.dt.sg_list[j].len, 738 sgl[i].addr, sgl[i].len, j, i); 739 #endif 740 } 741 #if 0 742 memcpy(&sgl[msg_info.dt.sent_sg_entries], 743 msg_info.dt.sg_list, 744 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 745 #endif 746 747 /* 748 * If this is the last piece of the I/O, we've got 749 * the full S/G list. Queue processing in the thread. 750 * Otherwise wait for the next piece. 751 */ 752 if (msg_info.dt.sg_last != 0) 753 ctl_enqueue_isc(io); 754 break; 755 } 756 /* Performed on the Serializing (primary) SC, XFER mode only */ 757 case CTL_MSG_DATAMOVE_DONE: { 758 if (msg_info.hdr.serializing_sc == NULL) { 759 printf("%s: serializing_sc == NULL!\n", 760 __func__); 761 /* XXX KDM now what? */ 762 break; 763 } 764 /* 765 * We grab the sense information here in case 766 * there was a failure, so we can return status 767 * back to the initiator. 768 */ 769 io = msg_info.hdr.serializing_sc; 770 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 771 io->io_hdr.status = msg_info.hdr.status; 772 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 773 io->scsiio.sense_len = msg_info.scsi.sense_len; 774 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 775 io->io_hdr.port_status = msg_info.scsi.fetd_status; 776 io->scsiio.residual = msg_info.scsi.residual; 777 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 778 sizeof(io->scsiio.sense_data)); 779 ctl_enqueue_isc(io); 780 break; 781 } 782 783 /* Preformed on Originating SC, SER_ONLY mode */ 784 case CTL_MSG_R2R: 785 io = msg_info.hdr.original_sc; 786 if (io == NULL) { 787 printf("%s: Major Bummer\n", __func__); 788 return; 789 } else { 790 #if 0 791 printf("pOrig %x\n",(int) ctsio); 792 #endif 793 } 794 io->io_hdr.msg_type = CTL_MSG_R2R; 795 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 796 ctl_enqueue_isc(io); 797 break; 798 799 /* 800 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 801 * mode. 802 * Performed on the Originating (i.e. secondary) SC in XFER 803 * mode 804 */ 805 case CTL_MSG_FINISH_IO: 806 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 807 ctl_isc_handler_finish_xfer(ctl_softc, 808 &msg_info); 809 else 810 ctl_isc_handler_finish_ser_only(ctl_softc, 811 &msg_info); 812 break; 813 814 /* Preformed on Originating SC */ 815 case CTL_MSG_BAD_JUJU: 816 io = msg_info.hdr.original_sc; 817 if (io == NULL) { 818 printf("%s: Bad JUJU!, original_sc is NULL!\n", 819 __func__); 820 break; 821 } 822 ctl_copy_sense_data(&msg_info, io); 823 /* 824 * IO should have already been cleaned up on other 825 * SC so clear this flag so we won't send a message 826 * back to finish the IO there. 827 */ 828 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 829 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 830 831 /* io = msg_info.hdr.serializing_sc; */ 832 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 833 ctl_enqueue_isc(io); 834 break; 835 836 /* Handle resets sent from the other side */ 837 case CTL_MSG_MANAGE_TASKS: { 838 struct ctl_taskio *taskio; 839 taskio = (struct ctl_taskio *)ctl_alloc_io( 840 (void *)ctl_softc->othersc_pool); 841 if (taskio == NULL) { 842 printf("ctl_isc_event_handler: can't allocate " 843 "ctl_io!\n"); 844 /* Bad Juju */ 845 /* should I just call the proper reset func 846 here??? */ 847 goto bailout; 848 } 849 ctl_zero_io((union ctl_io *)taskio); 850 taskio->io_hdr.io_type = CTL_IO_TASK; 851 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 852 taskio->io_hdr.nexus = msg_info.hdr.nexus; 853 taskio->task_action = msg_info.task.task_action; 854 taskio->tag_num = msg_info.task.tag_num; 855 taskio->tag_type = msg_info.task.tag_type; 856 #ifdef CTL_TIME_IO 857 taskio->io_hdr.start_time = time_uptime; 858 getbintime(&taskio->io_hdr.start_bt); 859 #if 0 860 cs_prof_gettime(&taskio->io_hdr.start_ticks); 861 #endif 862 #endif /* CTL_TIME_IO */ 863 ctl_run_task((union ctl_io *)taskio); 864 break; 865 } 866 /* Persistent Reserve action which needs attention */ 867 case CTL_MSG_PERS_ACTION: 868 presio = (struct ctl_prio *)ctl_alloc_io( 869 (void *)ctl_softc->othersc_pool); 870 if (presio == NULL) { 871 printf("ctl_isc_event_handler: can't allocate " 872 "ctl_io!\n"); 873 /* Bad Juju */ 874 /* Need to set busy and send msg back */ 875 goto bailout; 876 } 877 ctl_zero_io((union ctl_io *)presio); 878 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 879 presio->pr_msg = msg_info.pr; 880 ctl_enqueue_isc((union ctl_io *)presio); 881 break; 882 case CTL_MSG_SYNC_FE: 883 rcv_sync_msg = 1; 884 break; 885 case CTL_MSG_APS_LOCK: { 886 // It's quicker to execute this then to 887 // queue it. 888 struct ctl_lun *lun; 889 struct ctl_page_index *page_index; 890 struct copan_aps_subpage *current_sp; 891 uint32_t targ_lun; 892 893 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 894 lun = ctl_softc->ctl_luns[targ_lun]; 895 mtx_lock(&lun->lun_lock); 896 page_index = &lun->mode_pages.index[index_to_aps_page]; 897 current_sp = (struct copan_aps_subpage *) 898 (page_index->page_data + 899 (page_index->page_len * CTL_PAGE_CURRENT)); 900 901 current_sp->lock_active = msg_info.aps.lock_flag; 902 mtx_unlock(&lun->lun_lock); 903 break; 904 } 905 default: 906 printf("How did I get here?\n"); 907 } 908 } else if (event == CTL_HA_EVT_MSG_SENT) { 909 if (param != CTL_HA_STATUS_SUCCESS) { 910 printf("Bad status from ctl_ha_msg_send status %d\n", 911 param); 912 } 913 return; 914 } else if (event == CTL_HA_EVT_DISCONNECT) { 915 printf("CTL: Got a disconnect from Isc\n"); 916 return; 917 } else { 918 printf("ctl_isc_event_handler: Unknown event %d\n", event); 919 return; 920 } 921 922 bailout: 923 return; 924 } 925 926 static void 927 ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 928 { 929 struct scsi_sense_data *sense; 930 931 sense = &dest->scsiio.sense_data; 932 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 933 dest->scsiio.scsi_status = src->scsi.scsi_status; 934 dest->scsiio.sense_len = src->scsi.sense_len; 935 dest->io_hdr.status = src->hdr.status; 936 } 937 938 static int 939 ctl_init(void) 940 { 941 struct ctl_softc *softc; 942 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 943 struct ctl_port *port; 944 uint8_t sc_id =0; 945 int i, error, retval; 946 //int isc_retval; 947 948 retval = 0; 949 ctl_pause_rtr = 0; 950 rcv_sync_msg = 0; 951 952 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 953 M_WAITOK | M_ZERO); 954 softc = control_softc; 955 956 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 957 "cam/ctl"); 958 959 softc->dev->si_drv1 = softc; 960 961 /* 962 * By default, return a "bad LUN" peripheral qualifier for unknown 963 * LUNs. The user can override this default using the tunable or 964 * sysctl. See the comment in ctl_inquiry_std() for more details. 965 */ 966 softc->inquiry_pq_no_lun = 1; 967 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 968 &softc->inquiry_pq_no_lun); 969 sysctl_ctx_init(&softc->sysctl_ctx); 970 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 971 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 972 CTLFLAG_RD, 0, "CAM Target Layer"); 973 974 if (softc->sysctl_tree == NULL) { 975 printf("%s: unable to allocate sysctl tree\n", __func__); 976 destroy_dev(softc->dev); 977 free(control_softc, M_DEVBUF); 978 control_softc = NULL; 979 return (ENOMEM); 980 } 981 982 SYSCTL_ADD_INT(&softc->sysctl_ctx, 983 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 984 "inquiry_pq_no_lun", CTLFLAG_RW, 985 &softc->inquiry_pq_no_lun, 0, 986 "Report no lun possible for invalid LUNs"); 987 988 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 989 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 990 softc->open_count = 0; 991 992 /* 993 * Default to actually sending a SYNCHRONIZE CACHE command down to 994 * the drive. 995 */ 996 softc->flags = CTL_FLAG_REAL_SYNC; 997 998 /* 999 * In Copan's HA scheme, the "master" and "slave" roles are 1000 * figured out through the slot the controller is in. Although it 1001 * is an active/active system, someone has to be in charge. 1002 */ 1003 #ifdef NEEDTOPORT 1004 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1005 #endif 1006 1007 if (sc_id == 0) { 1008 softc->flags |= CTL_FLAG_MASTER_SHELF; 1009 persis_offset = 0; 1010 } else 1011 persis_offset = CTL_MAX_INITIATORS; 1012 1013 /* 1014 * XXX KDM need to figure out where we want to get our target ID 1015 * and WWID. Is it different on each port? 1016 */ 1017 softc->target.id = 0; 1018 softc->target.wwid[0] = 0x12345678; 1019 softc->target.wwid[1] = 0x87654321; 1020 STAILQ_INIT(&softc->lun_list); 1021 STAILQ_INIT(&softc->pending_lun_queue); 1022 STAILQ_INIT(&softc->fe_list); 1023 STAILQ_INIT(&softc->port_list); 1024 STAILQ_INIT(&softc->be_list); 1025 STAILQ_INIT(&softc->io_pools); 1026 1027 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1028 &internal_pool)!= 0){ 1029 printf("ctl: can't allocate %d entry internal pool, " 1030 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1031 return (ENOMEM); 1032 } 1033 1034 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1035 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1036 printf("ctl: can't allocate %d entry emergency pool, " 1037 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1038 ctl_pool_free(internal_pool); 1039 return (ENOMEM); 1040 } 1041 1042 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1043 &other_pool) != 0) 1044 { 1045 printf("ctl: can't allocate %d entry other SC pool, " 1046 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1047 ctl_pool_free(internal_pool); 1048 ctl_pool_free(emergency_pool); 1049 return (ENOMEM); 1050 } 1051 1052 softc->internal_pool = internal_pool; 1053 softc->emergency_pool = emergency_pool; 1054 softc->othersc_pool = other_pool; 1055 1056 if (worker_threads <= 0) 1057 worker_threads = max(1, mp_ncpus / 4); 1058 if (worker_threads > CTL_MAX_THREADS) 1059 worker_threads = CTL_MAX_THREADS; 1060 1061 for (i = 0; i < worker_threads; i++) { 1062 struct ctl_thread *thr = &softc->threads[i]; 1063 1064 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1065 thr->ctl_softc = softc; 1066 STAILQ_INIT(&thr->incoming_queue); 1067 STAILQ_INIT(&thr->rtr_queue); 1068 STAILQ_INIT(&thr->done_queue); 1069 STAILQ_INIT(&thr->isc_queue); 1070 1071 error = kproc_kthread_add(ctl_work_thread, thr, 1072 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1073 if (error != 0) { 1074 printf("error creating CTL work thread!\n"); 1075 ctl_pool_free(internal_pool); 1076 ctl_pool_free(emergency_pool); 1077 ctl_pool_free(other_pool); 1078 return (error); 1079 } 1080 } 1081 error = kproc_kthread_add(ctl_lun_thread, softc, 1082 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1083 if (error != 0) { 1084 printf("error creating CTL lun thread!\n"); 1085 ctl_pool_free(internal_pool); 1086 ctl_pool_free(emergency_pool); 1087 ctl_pool_free(other_pool); 1088 return (error); 1089 } 1090 if (bootverbose) 1091 printf("ctl: CAM Target Layer loaded\n"); 1092 1093 /* 1094 * Initialize the ioctl front end. 1095 */ 1096 ctl_frontend_register(&ioctl_frontend); 1097 port = &softc->ioctl_info.port; 1098 port->frontend = &ioctl_frontend; 1099 sprintf(softc->ioctl_info.port_name, "ioctl"); 1100 port->port_type = CTL_PORT_IOCTL; 1101 port->num_requested_ctl_io = 100; 1102 port->port_name = softc->ioctl_info.port_name; 1103 port->port_online = ctl_ioctl_online; 1104 port->port_offline = ctl_ioctl_offline; 1105 port->onoff_arg = &softc->ioctl_info; 1106 port->lun_enable = ctl_ioctl_lun_enable; 1107 port->lun_disable = ctl_ioctl_lun_disable; 1108 port->targ_lun_arg = &softc->ioctl_info; 1109 port->fe_datamove = ctl_ioctl_datamove; 1110 port->fe_done = ctl_ioctl_done; 1111 port->max_targets = 15; 1112 port->max_target_id = 15; 1113 1114 if (ctl_port_register(&softc->ioctl_info.port, 1115 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1116 printf("ctl: ioctl front end registration failed, will " 1117 "continue anyway\n"); 1118 } 1119 1120 #ifdef CTL_IO_DELAY 1121 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1122 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1123 sizeof(struct callout), CTL_TIMER_BYTES); 1124 return (EINVAL); 1125 } 1126 #endif /* CTL_IO_DELAY */ 1127 1128 return (0); 1129 } 1130 1131 void 1132 ctl_shutdown(void) 1133 { 1134 struct ctl_softc *softc; 1135 struct ctl_lun *lun, *next_lun; 1136 struct ctl_io_pool *pool; 1137 1138 softc = (struct ctl_softc *)control_softc; 1139 1140 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1141 printf("ctl: ioctl front end deregistration failed\n"); 1142 1143 mtx_lock(&softc->ctl_lock); 1144 1145 /* 1146 * Free up each LUN. 1147 */ 1148 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1149 next_lun = STAILQ_NEXT(lun, links); 1150 ctl_free_lun(lun); 1151 } 1152 1153 mtx_unlock(&softc->ctl_lock); 1154 1155 ctl_frontend_deregister(&ioctl_frontend); 1156 1157 /* 1158 * This will rip the rug out from under any FETDs or anyone else 1159 * that has a pool allocated. Since we increment our module 1160 * refcount any time someone outside the main CTL module allocates 1161 * a pool, we shouldn't have any problems here. The user won't be 1162 * able to unload the CTL module until client modules have 1163 * successfully unloaded. 1164 */ 1165 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1166 ctl_pool_free(pool); 1167 1168 #if 0 1169 ctl_shutdown_thread(softc->work_thread); 1170 mtx_destroy(&softc->queue_lock); 1171 #endif 1172 1173 mtx_destroy(&softc->pool_lock); 1174 mtx_destroy(&softc->ctl_lock); 1175 1176 destroy_dev(softc->dev); 1177 1178 sysctl_ctx_free(&softc->sysctl_ctx); 1179 1180 free(control_softc, M_DEVBUF); 1181 control_softc = NULL; 1182 1183 if (bootverbose) 1184 printf("ctl: CAM Target Layer unloaded\n"); 1185 } 1186 1187 static int 1188 ctl_module_event_handler(module_t mod, int what, void *arg) 1189 { 1190 1191 switch (what) { 1192 case MOD_LOAD: 1193 return (ctl_init()); 1194 case MOD_UNLOAD: 1195 return (EBUSY); 1196 default: 1197 return (EOPNOTSUPP); 1198 } 1199 } 1200 1201 /* 1202 * XXX KDM should we do some access checks here? Bump a reference count to 1203 * prevent a CTL module from being unloaded while someone has it open? 1204 */ 1205 static int 1206 ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1207 { 1208 return (0); 1209 } 1210 1211 static int 1212 ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1213 { 1214 return (0); 1215 } 1216 1217 int 1218 ctl_port_enable(ctl_port_type port_type) 1219 { 1220 struct ctl_softc *softc; 1221 struct ctl_port *port; 1222 1223 if (ctl_is_single == 0) { 1224 union ctl_ha_msg msg_info; 1225 int isc_retval; 1226 1227 #if 0 1228 printf("%s: HA mode, synchronizing frontend enable\n", 1229 __func__); 1230 #endif 1231 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1232 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1233 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1234 printf("Sync msg send error retval %d\n", isc_retval); 1235 } 1236 if (!rcv_sync_msg) { 1237 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1238 sizeof(msg_info), 1); 1239 } 1240 #if 0 1241 printf("CTL:Frontend Enable\n"); 1242 } else { 1243 printf("%s: single mode, skipping frontend synchronization\n", 1244 __func__); 1245 #endif 1246 } 1247 1248 softc = control_softc; 1249 1250 STAILQ_FOREACH(port, &softc->port_list, links) { 1251 if (port_type & port->port_type) 1252 { 1253 #if 0 1254 printf("port %d\n", port->targ_port); 1255 #endif 1256 ctl_port_online(port); 1257 } 1258 } 1259 1260 return (0); 1261 } 1262 1263 int 1264 ctl_port_disable(ctl_port_type port_type) 1265 { 1266 struct ctl_softc *softc; 1267 struct ctl_port *port; 1268 1269 softc = control_softc; 1270 1271 STAILQ_FOREACH(port, &softc->port_list, links) { 1272 if (port_type & port->port_type) 1273 ctl_port_offline(port); 1274 } 1275 1276 return (0); 1277 } 1278 1279 /* 1280 * Returns 0 for success, 1 for failure. 1281 * Currently the only failure mode is if there aren't enough entries 1282 * allocated. So, in case of a failure, look at num_entries_dropped, 1283 * reallocate and try again. 1284 */ 1285 int 1286 ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1287 int *num_entries_filled, int *num_entries_dropped, 1288 ctl_port_type port_type, int no_virtual) 1289 { 1290 struct ctl_softc *softc; 1291 struct ctl_port *port; 1292 int entries_dropped, entries_filled; 1293 int retval; 1294 int i; 1295 1296 softc = control_softc; 1297 1298 retval = 0; 1299 entries_filled = 0; 1300 entries_dropped = 0; 1301 1302 i = 0; 1303 mtx_lock(&softc->ctl_lock); 1304 STAILQ_FOREACH(port, &softc->port_list, links) { 1305 struct ctl_port_entry *entry; 1306 1307 if ((port->port_type & port_type) == 0) 1308 continue; 1309 1310 if ((no_virtual != 0) 1311 && (port->virtual_port != 0)) 1312 continue; 1313 1314 if (entries_filled >= num_entries_alloced) { 1315 entries_dropped++; 1316 continue; 1317 } 1318 entry = &entries[i]; 1319 1320 entry->port_type = port->port_type; 1321 strlcpy(entry->port_name, port->port_name, 1322 sizeof(entry->port_name)); 1323 entry->physical_port = port->physical_port; 1324 entry->virtual_port = port->virtual_port; 1325 entry->wwnn = port->wwnn; 1326 entry->wwpn = port->wwpn; 1327 1328 i++; 1329 entries_filled++; 1330 } 1331 1332 mtx_unlock(&softc->ctl_lock); 1333 1334 if (entries_dropped > 0) 1335 retval = 1; 1336 1337 *num_entries_dropped = entries_dropped; 1338 *num_entries_filled = entries_filled; 1339 1340 return (retval); 1341 } 1342 1343 static void 1344 ctl_ioctl_online(void *arg) 1345 { 1346 struct ctl_ioctl_info *ioctl_info; 1347 1348 ioctl_info = (struct ctl_ioctl_info *)arg; 1349 1350 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1351 } 1352 1353 static void 1354 ctl_ioctl_offline(void *arg) 1355 { 1356 struct ctl_ioctl_info *ioctl_info; 1357 1358 ioctl_info = (struct ctl_ioctl_info *)arg; 1359 1360 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1361 } 1362 1363 /* 1364 * Remove an initiator by port number and initiator ID. 1365 * Returns 0 for success, -1 for failure. 1366 */ 1367 int 1368 ctl_remove_initiator(struct ctl_port *port, int iid) 1369 { 1370 struct ctl_softc *softc = control_softc; 1371 1372 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1373 1374 if (iid > CTL_MAX_INIT_PER_PORT) { 1375 printf("%s: initiator ID %u > maximun %u!\n", 1376 __func__, iid, CTL_MAX_INIT_PER_PORT); 1377 return (-1); 1378 } 1379 1380 mtx_lock(&softc->ctl_lock); 1381 port->wwpn_iid[iid].in_use--; 1382 port->wwpn_iid[iid].last_use = time_uptime; 1383 mtx_unlock(&softc->ctl_lock); 1384 1385 return (0); 1386 } 1387 1388 /* 1389 * Add an initiator to the initiator map. 1390 * Returns iid for success, < 0 for failure. 1391 */ 1392 int 1393 ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1394 { 1395 struct ctl_softc *softc = control_softc; 1396 time_t best_time; 1397 int i, best; 1398 1399 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1400 1401 if (iid >= CTL_MAX_INIT_PER_PORT) { 1402 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1403 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1404 free(name, M_CTL); 1405 return (-1); 1406 } 1407 1408 mtx_lock(&softc->ctl_lock); 1409 1410 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1411 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1412 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1413 iid = i; 1414 break; 1415 } 1416 if (name != NULL && port->wwpn_iid[i].name != NULL && 1417 strcmp(name, port->wwpn_iid[i].name) == 0) { 1418 iid = i; 1419 break; 1420 } 1421 } 1422 } 1423 1424 if (iid < 0) { 1425 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1426 if (port->wwpn_iid[i].in_use == 0 && 1427 port->wwpn_iid[i].wwpn == 0 && 1428 port->wwpn_iid[i].name == NULL) { 1429 iid = i; 1430 break; 1431 } 1432 } 1433 } 1434 1435 if (iid < 0) { 1436 best = -1; 1437 best_time = INT32_MAX; 1438 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1439 if (port->wwpn_iid[i].in_use == 0) { 1440 if (port->wwpn_iid[i].last_use < best_time) { 1441 best = i; 1442 best_time = port->wwpn_iid[i].last_use; 1443 } 1444 } 1445 } 1446 iid = best; 1447 } 1448 1449 if (iid < 0) { 1450 mtx_unlock(&softc->ctl_lock); 1451 free(name, M_CTL); 1452 return (-2); 1453 } 1454 1455 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1456 /* 1457 * This is not an error yet. 1458 */ 1459 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1460 #if 0 1461 printf("%s: port %d iid %u WWPN %#jx arrived" 1462 " again\n", __func__, port->targ_port, 1463 iid, (uintmax_t)wwpn); 1464 #endif 1465 goto take; 1466 } 1467 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1468 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1469 #if 0 1470 printf("%s: port %d iid %u name '%s' arrived" 1471 " again\n", __func__, port->targ_port, 1472 iid, name); 1473 #endif 1474 goto take; 1475 } 1476 1477 /* 1478 * This is an error, but what do we do about it? The 1479 * driver is telling us we have a new WWPN for this 1480 * initiator ID, so we pretty much need to use it. 1481 */ 1482 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1483 " but WWPN %#jx '%s' is still at that address\n", 1484 __func__, port->targ_port, iid, wwpn, name, 1485 (uintmax_t)port->wwpn_iid[iid].wwpn, 1486 port->wwpn_iid[iid].name); 1487 1488 /* 1489 * XXX KDM clear have_ca and ua_pending on each LUN for 1490 * this initiator. 1491 */ 1492 } 1493 take: 1494 free(port->wwpn_iid[iid].name, M_CTL); 1495 port->wwpn_iid[iid].name = name; 1496 port->wwpn_iid[iid].wwpn = wwpn; 1497 port->wwpn_iid[iid].in_use++; 1498 mtx_unlock(&softc->ctl_lock); 1499 1500 return (iid); 1501 } 1502 1503 static int 1504 ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1505 { 1506 int len; 1507 1508 switch (port->port_type) { 1509 case CTL_PORT_FC: 1510 { 1511 struct scsi_transportid_fcp *id = 1512 (struct scsi_transportid_fcp *)buf; 1513 if (port->wwpn_iid[iid].wwpn == 0) 1514 return (0); 1515 memset(id, 0, sizeof(*id)); 1516 id->format_protocol = SCSI_PROTO_FC; 1517 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1518 return (sizeof(*id)); 1519 } 1520 case CTL_PORT_ISCSI: 1521 { 1522 struct scsi_transportid_iscsi_port *id = 1523 (struct scsi_transportid_iscsi_port *)buf; 1524 if (port->wwpn_iid[iid].name == NULL) 1525 return (0); 1526 memset(id, 0, 256); 1527 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1528 SCSI_PROTO_ISCSI; 1529 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1530 len = roundup2(min(len, 252), 4); 1531 scsi_ulto2b(len, id->additional_length); 1532 return (sizeof(*id) + len); 1533 } 1534 case CTL_PORT_SAS: 1535 { 1536 struct scsi_transportid_sas *id = 1537 (struct scsi_transportid_sas *)buf; 1538 if (port->wwpn_iid[iid].wwpn == 0) 1539 return (0); 1540 memset(id, 0, sizeof(*id)); 1541 id->format_protocol = SCSI_PROTO_SAS; 1542 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1543 return (sizeof(*id)); 1544 } 1545 default: 1546 { 1547 struct scsi_transportid_spi *id = 1548 (struct scsi_transportid_spi *)buf; 1549 memset(id, 0, sizeof(*id)); 1550 id->format_protocol = SCSI_PROTO_SPI; 1551 scsi_ulto2b(iid, id->scsi_addr); 1552 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1553 return (sizeof(*id)); 1554 } 1555 } 1556 } 1557 1558 static int 1559 ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1560 { 1561 return (0); 1562 } 1563 1564 static int 1565 ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1566 { 1567 return (0); 1568 } 1569 1570 /* 1571 * Data movement routine for the CTL ioctl frontend port. 1572 */ 1573 static int 1574 ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1575 { 1576 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1577 struct ctl_sg_entry ext_entry, kern_entry; 1578 int ext_sglen, ext_sg_entries, kern_sg_entries; 1579 int ext_sg_start, ext_offset; 1580 int len_to_copy, len_copied; 1581 int kern_watermark, ext_watermark; 1582 int ext_sglist_malloced; 1583 int i, j; 1584 1585 ext_sglist_malloced = 0; 1586 ext_sg_start = 0; 1587 ext_offset = 0; 1588 1589 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1590 1591 /* 1592 * If this flag is set, fake the data transfer. 1593 */ 1594 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1595 ctsio->ext_data_filled = ctsio->ext_data_len; 1596 goto bailout; 1597 } 1598 1599 /* 1600 * To simplify things here, if we have a single buffer, stick it in 1601 * a S/G entry and just make it a single entry S/G list. 1602 */ 1603 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1604 int len_seen; 1605 1606 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1607 1608 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1609 M_WAITOK); 1610 ext_sglist_malloced = 1; 1611 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1612 ext_sglen) != 0) { 1613 ctl_set_internal_failure(ctsio, 1614 /*sks_valid*/ 0, 1615 /*retry_count*/ 0); 1616 goto bailout; 1617 } 1618 ext_sg_entries = ctsio->ext_sg_entries; 1619 len_seen = 0; 1620 for (i = 0; i < ext_sg_entries; i++) { 1621 if ((len_seen + ext_sglist[i].len) >= 1622 ctsio->ext_data_filled) { 1623 ext_sg_start = i; 1624 ext_offset = ctsio->ext_data_filled - len_seen; 1625 break; 1626 } 1627 len_seen += ext_sglist[i].len; 1628 } 1629 } else { 1630 ext_sglist = &ext_entry; 1631 ext_sglist->addr = ctsio->ext_data_ptr; 1632 ext_sglist->len = ctsio->ext_data_len; 1633 ext_sg_entries = 1; 1634 ext_sg_start = 0; 1635 ext_offset = ctsio->ext_data_filled; 1636 } 1637 1638 if (ctsio->kern_sg_entries > 0) { 1639 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1640 kern_sg_entries = ctsio->kern_sg_entries; 1641 } else { 1642 kern_sglist = &kern_entry; 1643 kern_sglist->addr = ctsio->kern_data_ptr; 1644 kern_sglist->len = ctsio->kern_data_len; 1645 kern_sg_entries = 1; 1646 } 1647 1648 1649 kern_watermark = 0; 1650 ext_watermark = ext_offset; 1651 len_copied = 0; 1652 for (i = ext_sg_start, j = 0; 1653 i < ext_sg_entries && j < kern_sg_entries;) { 1654 uint8_t *ext_ptr, *kern_ptr; 1655 1656 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1657 kern_sglist[j].len - kern_watermark); 1658 1659 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1660 ext_ptr = ext_ptr + ext_watermark; 1661 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1662 /* 1663 * XXX KDM fix this! 1664 */ 1665 panic("need to implement bus address support"); 1666 #if 0 1667 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1668 #endif 1669 } else 1670 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1671 kern_ptr = kern_ptr + kern_watermark; 1672 1673 kern_watermark += len_to_copy; 1674 ext_watermark += len_to_copy; 1675 1676 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1677 CTL_FLAG_DATA_IN) { 1678 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1679 "bytes to user\n", len_to_copy)); 1680 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1681 "to %p\n", kern_ptr, ext_ptr)); 1682 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1683 ctl_set_internal_failure(ctsio, 1684 /*sks_valid*/ 0, 1685 /*retry_count*/ 0); 1686 goto bailout; 1687 } 1688 } else { 1689 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1690 "bytes from user\n", len_to_copy)); 1691 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1692 "to %p\n", ext_ptr, kern_ptr)); 1693 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1694 ctl_set_internal_failure(ctsio, 1695 /*sks_valid*/ 0, 1696 /*retry_count*/0); 1697 goto bailout; 1698 } 1699 } 1700 1701 len_copied += len_to_copy; 1702 1703 if (ext_sglist[i].len == ext_watermark) { 1704 i++; 1705 ext_watermark = 0; 1706 } 1707 1708 if (kern_sglist[j].len == kern_watermark) { 1709 j++; 1710 kern_watermark = 0; 1711 } 1712 } 1713 1714 ctsio->ext_data_filled += len_copied; 1715 1716 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1717 "kern_sg_entries: %d\n", ext_sg_entries, 1718 kern_sg_entries)); 1719 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1720 "kern_data_len = %d\n", ctsio->ext_data_len, 1721 ctsio->kern_data_len)); 1722 1723 1724 /* XXX KDM set residual?? */ 1725 bailout: 1726 1727 if (ext_sglist_malloced != 0) 1728 free(ext_sglist, M_CTL); 1729 1730 return (CTL_RETVAL_COMPLETE); 1731 } 1732 1733 /* 1734 * Serialize a command that went down the "wrong" side, and so was sent to 1735 * this controller for execution. The logic is a little different than the 1736 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1737 * sent back to the other side, but in the success case, we execute the 1738 * command on this side (XFER mode) or tell the other side to execute it 1739 * (SER_ONLY mode). 1740 */ 1741 static int 1742 ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1743 { 1744 struct ctl_softc *ctl_softc; 1745 union ctl_ha_msg msg_info; 1746 struct ctl_lun *lun; 1747 int retval = 0; 1748 uint32_t targ_lun; 1749 1750 ctl_softc = control_softc; 1751 1752 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1753 lun = ctl_softc->ctl_luns[targ_lun]; 1754 if (lun==NULL) 1755 { 1756 /* 1757 * Why isn't LUN defined? The other side wouldn't 1758 * send a cmd if the LUN is undefined. 1759 */ 1760 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1761 1762 /* "Logical unit not supported" */ 1763 ctl_set_sense_data(&msg_info.scsi.sense_data, 1764 lun, 1765 /*sense_format*/SSD_TYPE_NONE, 1766 /*current_error*/ 1, 1767 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1768 /*asc*/ 0x25, 1769 /*ascq*/ 0x00, 1770 SSD_ELEM_NONE); 1771 1772 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1773 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1774 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1775 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1776 msg_info.hdr.serializing_sc = NULL; 1777 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1778 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1779 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1780 } 1781 return(1); 1782 1783 } 1784 1785 mtx_lock(&lun->lun_lock); 1786 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1787 1788 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1789 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1790 ooa_links))) { 1791 case CTL_ACTION_BLOCK: 1792 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1793 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1794 blocked_links); 1795 break; 1796 case CTL_ACTION_PASS: 1797 case CTL_ACTION_SKIP: 1798 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1799 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1800 ctl_enqueue_rtr((union ctl_io *)ctsio); 1801 } else { 1802 1803 /* send msg back to other side */ 1804 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1805 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1806 msg_info.hdr.msg_type = CTL_MSG_R2R; 1807 #if 0 1808 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1809 #endif 1810 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1811 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1812 } 1813 } 1814 break; 1815 case CTL_ACTION_OVERLAP: 1816 /* OVERLAPPED COMMANDS ATTEMPTED */ 1817 ctl_set_sense_data(&msg_info.scsi.sense_data, 1818 lun, 1819 /*sense_format*/SSD_TYPE_NONE, 1820 /*current_error*/ 1, 1821 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1822 /*asc*/ 0x4E, 1823 /*ascq*/ 0x00, 1824 SSD_ELEM_NONE); 1825 1826 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1827 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1828 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1829 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1830 msg_info.hdr.serializing_sc = NULL; 1831 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1832 #if 0 1833 printf("BAD JUJU:Major Bummer Overlap\n"); 1834 #endif 1835 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1836 retval = 1; 1837 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1838 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1839 } 1840 break; 1841 case CTL_ACTION_OVERLAP_TAG: 1842 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1843 ctl_set_sense_data(&msg_info.scsi.sense_data, 1844 lun, 1845 /*sense_format*/SSD_TYPE_NONE, 1846 /*current_error*/ 1, 1847 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1848 /*asc*/ 0x4D, 1849 /*ascq*/ ctsio->tag_num & 0xff, 1850 SSD_ELEM_NONE); 1851 1852 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1853 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1854 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1855 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1856 msg_info.hdr.serializing_sc = NULL; 1857 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1858 #if 0 1859 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1860 #endif 1861 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1862 retval = 1; 1863 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1864 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1865 } 1866 break; 1867 case CTL_ACTION_ERROR: 1868 default: 1869 /* "Internal target failure" */ 1870 ctl_set_sense_data(&msg_info.scsi.sense_data, 1871 lun, 1872 /*sense_format*/SSD_TYPE_NONE, 1873 /*current_error*/ 1, 1874 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1875 /*asc*/ 0x44, 1876 /*ascq*/ 0x00, 1877 SSD_ELEM_NONE); 1878 1879 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1880 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1881 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1882 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1883 msg_info.hdr.serializing_sc = NULL; 1884 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1885 #if 0 1886 printf("BAD JUJU:Major Bummer HW Error\n"); 1887 #endif 1888 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1889 retval = 1; 1890 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1891 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1892 } 1893 break; 1894 } 1895 mtx_unlock(&lun->lun_lock); 1896 return (retval); 1897 } 1898 1899 static int 1900 ctl_ioctl_submit_wait(union ctl_io *io) 1901 { 1902 struct ctl_fe_ioctl_params params; 1903 ctl_fe_ioctl_state last_state; 1904 int done, retval; 1905 1906 retval = 0; 1907 1908 bzero(¶ms, sizeof(params)); 1909 1910 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1911 cv_init(¶ms.sem, "ctlioccv"); 1912 params.state = CTL_IOCTL_INPROG; 1913 last_state = params.state; 1914 1915 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1916 1917 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1918 1919 /* This shouldn't happen */ 1920 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1921 return (retval); 1922 1923 done = 0; 1924 1925 do { 1926 mtx_lock(¶ms.ioctl_mtx); 1927 /* 1928 * Check the state here, and don't sleep if the state has 1929 * already changed (i.e. wakeup has already occured, but we 1930 * weren't waiting yet). 1931 */ 1932 if (params.state == last_state) { 1933 /* XXX KDM cv_wait_sig instead? */ 1934 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1935 } 1936 last_state = params.state; 1937 1938 switch (params.state) { 1939 case CTL_IOCTL_INPROG: 1940 /* Why did we wake up? */ 1941 /* XXX KDM error here? */ 1942 mtx_unlock(¶ms.ioctl_mtx); 1943 break; 1944 case CTL_IOCTL_DATAMOVE: 1945 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1946 1947 /* 1948 * change last_state back to INPROG to avoid 1949 * deadlock on subsequent data moves. 1950 */ 1951 params.state = last_state = CTL_IOCTL_INPROG; 1952 1953 mtx_unlock(¶ms.ioctl_mtx); 1954 ctl_ioctl_do_datamove(&io->scsiio); 1955 /* 1956 * Note that in some cases, most notably writes, 1957 * this will queue the I/O and call us back later. 1958 * In other cases, generally reads, this routine 1959 * will immediately call back and wake us up, 1960 * probably using our own context. 1961 */ 1962 io->scsiio.be_move_done(io); 1963 break; 1964 case CTL_IOCTL_DONE: 1965 mtx_unlock(¶ms.ioctl_mtx); 1966 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1967 done = 1; 1968 break; 1969 default: 1970 mtx_unlock(¶ms.ioctl_mtx); 1971 /* XXX KDM error here? */ 1972 break; 1973 } 1974 } while (done == 0); 1975 1976 mtx_destroy(¶ms.ioctl_mtx); 1977 cv_destroy(¶ms.sem); 1978 1979 return (CTL_RETVAL_COMPLETE); 1980 } 1981 1982 static void 1983 ctl_ioctl_datamove(union ctl_io *io) 1984 { 1985 struct ctl_fe_ioctl_params *params; 1986 1987 params = (struct ctl_fe_ioctl_params *) 1988 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1989 1990 mtx_lock(¶ms->ioctl_mtx); 1991 params->state = CTL_IOCTL_DATAMOVE; 1992 cv_broadcast(¶ms->sem); 1993 mtx_unlock(¶ms->ioctl_mtx); 1994 } 1995 1996 static void 1997 ctl_ioctl_done(union ctl_io *io) 1998 { 1999 struct ctl_fe_ioctl_params *params; 2000 2001 params = (struct ctl_fe_ioctl_params *) 2002 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2003 2004 mtx_lock(¶ms->ioctl_mtx); 2005 params->state = CTL_IOCTL_DONE; 2006 cv_broadcast(¶ms->sem); 2007 mtx_unlock(¶ms->ioctl_mtx); 2008 } 2009 2010 static void 2011 ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2012 { 2013 struct ctl_fe_ioctl_startstop_info *sd_info; 2014 2015 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2016 2017 sd_info->hs_info.status = metatask->status; 2018 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2019 sd_info->hs_info.luns_complete = 2020 metatask->taskinfo.startstop.luns_complete; 2021 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2022 2023 cv_broadcast(&sd_info->sem); 2024 } 2025 2026 static void 2027 ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2028 { 2029 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2030 2031 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2032 2033 mtx_lock(fe_bbr_info->lock); 2034 fe_bbr_info->bbr_info->status = metatask->status; 2035 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2036 fe_bbr_info->wakeup_done = 1; 2037 mtx_unlock(fe_bbr_info->lock); 2038 2039 cv_broadcast(&fe_bbr_info->sem); 2040 } 2041 2042 /* 2043 * Returns 0 for success, errno for failure. 2044 */ 2045 static int 2046 ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2047 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2048 { 2049 union ctl_io *io; 2050 int retval; 2051 2052 retval = 0; 2053 2054 mtx_lock(&lun->lun_lock); 2055 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2056 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2057 ooa_links)) { 2058 struct ctl_ooa_entry *entry; 2059 2060 /* 2061 * If we've got more than we can fit, just count the 2062 * remaining entries. 2063 */ 2064 if (*cur_fill_num >= ooa_hdr->alloc_num) 2065 continue; 2066 2067 entry = &kern_entries[*cur_fill_num]; 2068 2069 entry->tag_num = io->scsiio.tag_num; 2070 entry->lun_num = lun->lun; 2071 #ifdef CTL_TIME_IO 2072 entry->start_bt = io->io_hdr.start_bt; 2073 #endif 2074 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2075 entry->cdb_len = io->scsiio.cdb_len; 2076 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2077 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2078 2079 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2080 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2081 2082 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2083 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2084 2085 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2086 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2087 2088 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2089 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2090 } 2091 mtx_unlock(&lun->lun_lock); 2092 2093 return (retval); 2094 } 2095 2096 static void * 2097 ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2098 size_t error_str_len) 2099 { 2100 void *kptr; 2101 2102 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2103 2104 if (copyin(user_addr, kptr, len) != 0) { 2105 snprintf(error_str, error_str_len, "Error copying %d bytes " 2106 "from user address %p to kernel address %p", len, 2107 user_addr, kptr); 2108 free(kptr, M_CTL); 2109 return (NULL); 2110 } 2111 2112 return (kptr); 2113 } 2114 2115 static void 2116 ctl_free_args(int num_args, struct ctl_be_arg *args) 2117 { 2118 int i; 2119 2120 if (args == NULL) 2121 return; 2122 2123 for (i = 0; i < num_args; i++) { 2124 free(args[i].kname, M_CTL); 2125 free(args[i].kvalue, M_CTL); 2126 } 2127 2128 free(args, M_CTL); 2129 } 2130 2131 static struct ctl_be_arg * 2132 ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2133 char *error_str, size_t error_str_len) 2134 { 2135 struct ctl_be_arg *args; 2136 int i; 2137 2138 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2139 error_str, error_str_len); 2140 2141 if (args == NULL) 2142 goto bailout; 2143 2144 for (i = 0; i < num_args; i++) { 2145 args[i].kname = NULL; 2146 args[i].kvalue = NULL; 2147 } 2148 2149 for (i = 0; i < num_args; i++) { 2150 uint8_t *tmpptr; 2151 2152 args[i].kname = ctl_copyin_alloc(args[i].name, 2153 args[i].namelen, error_str, error_str_len); 2154 if (args[i].kname == NULL) 2155 goto bailout; 2156 2157 if (args[i].kname[args[i].namelen - 1] != '\0') { 2158 snprintf(error_str, error_str_len, "Argument %d " 2159 "name is not NUL-terminated", i); 2160 goto bailout; 2161 } 2162 2163 if (args[i].flags & CTL_BEARG_RD) { 2164 tmpptr = ctl_copyin_alloc(args[i].value, 2165 args[i].vallen, error_str, error_str_len); 2166 if (tmpptr == NULL) 2167 goto bailout; 2168 if ((args[i].flags & CTL_BEARG_ASCII) 2169 && (tmpptr[args[i].vallen - 1] != '\0')) { 2170 snprintf(error_str, error_str_len, "Argument " 2171 "%d value is not NUL-terminated", i); 2172 goto bailout; 2173 } 2174 args[i].kvalue = tmpptr; 2175 } else { 2176 args[i].kvalue = malloc(args[i].vallen, 2177 M_CTL, M_WAITOK | M_ZERO); 2178 } 2179 } 2180 2181 return (args); 2182 bailout: 2183 2184 ctl_free_args(num_args, args); 2185 2186 return (NULL); 2187 } 2188 2189 static void 2190 ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2191 { 2192 int i; 2193 2194 for (i = 0; i < num_args; i++) { 2195 if (args[i].flags & CTL_BEARG_WR) 2196 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2197 } 2198 } 2199 2200 /* 2201 * Escape characters that are illegal or not recommended in XML. 2202 */ 2203 int 2204 ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2205 { 2206 int retval; 2207 2208 retval = 0; 2209 2210 for (; *str; str++) { 2211 switch (*str) { 2212 case '&': 2213 retval = sbuf_printf(sb, "&"); 2214 break; 2215 case '>': 2216 retval = sbuf_printf(sb, ">"); 2217 break; 2218 case '<': 2219 retval = sbuf_printf(sb, "<"); 2220 break; 2221 default: 2222 retval = sbuf_putc(sb, *str); 2223 break; 2224 } 2225 2226 if (retval != 0) 2227 break; 2228 2229 } 2230 2231 return (retval); 2232 } 2233 2234 static int 2235 ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2236 struct thread *td) 2237 { 2238 struct ctl_softc *softc; 2239 int retval; 2240 2241 softc = control_softc; 2242 2243 retval = 0; 2244 2245 switch (cmd) { 2246 case CTL_IO: { 2247 union ctl_io *io; 2248 void *pool_tmp; 2249 2250 /* 2251 * If we haven't been "enabled", don't allow any SCSI I/O 2252 * to this FETD. 2253 */ 2254 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2255 retval = EPERM; 2256 break; 2257 } 2258 2259 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2260 if (io == NULL) { 2261 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2262 retval = ENOSPC; 2263 break; 2264 } 2265 2266 /* 2267 * Need to save the pool reference so it doesn't get 2268 * spammed by the user's ctl_io. 2269 */ 2270 pool_tmp = io->io_hdr.pool; 2271 2272 memcpy(io, (void *)addr, sizeof(*io)); 2273 2274 io->io_hdr.pool = pool_tmp; 2275 /* 2276 * No status yet, so make sure the status is set properly. 2277 */ 2278 io->io_hdr.status = CTL_STATUS_NONE; 2279 2280 /* 2281 * The user sets the initiator ID, target and LUN IDs. 2282 */ 2283 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2284 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2285 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2286 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2287 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2288 2289 retval = ctl_ioctl_submit_wait(io); 2290 2291 if (retval != 0) { 2292 ctl_free_io(io); 2293 break; 2294 } 2295 2296 memcpy((void *)addr, io, sizeof(*io)); 2297 2298 /* return this to our pool */ 2299 ctl_free_io(io); 2300 2301 break; 2302 } 2303 case CTL_ENABLE_PORT: 2304 case CTL_DISABLE_PORT: 2305 case CTL_SET_PORT_WWNS: { 2306 struct ctl_port *port; 2307 struct ctl_port_entry *entry; 2308 2309 entry = (struct ctl_port_entry *)addr; 2310 2311 mtx_lock(&softc->ctl_lock); 2312 STAILQ_FOREACH(port, &softc->port_list, links) { 2313 int action, done; 2314 2315 action = 0; 2316 done = 0; 2317 2318 if ((entry->port_type == CTL_PORT_NONE) 2319 && (entry->targ_port == port->targ_port)) { 2320 /* 2321 * If the user only wants to enable or 2322 * disable or set WWNs on a specific port, 2323 * do the operation and we're done. 2324 */ 2325 action = 1; 2326 done = 1; 2327 } else if (entry->port_type & port->port_type) { 2328 /* 2329 * Compare the user's type mask with the 2330 * particular frontend type to see if we 2331 * have a match. 2332 */ 2333 action = 1; 2334 done = 0; 2335 2336 /* 2337 * Make sure the user isn't trying to set 2338 * WWNs on multiple ports at the same time. 2339 */ 2340 if (cmd == CTL_SET_PORT_WWNS) { 2341 printf("%s: Can't set WWNs on " 2342 "multiple ports\n", __func__); 2343 retval = EINVAL; 2344 break; 2345 } 2346 } 2347 if (action != 0) { 2348 /* 2349 * XXX KDM we have to drop the lock here, 2350 * because the online/offline operations 2351 * can potentially block. We need to 2352 * reference count the frontends so they 2353 * can't go away, 2354 */ 2355 mtx_unlock(&softc->ctl_lock); 2356 2357 if (cmd == CTL_ENABLE_PORT) { 2358 struct ctl_lun *lun; 2359 2360 STAILQ_FOREACH(lun, &softc->lun_list, 2361 links) { 2362 port->lun_enable(port->targ_lun_arg, 2363 lun->target, 2364 lun->lun); 2365 } 2366 2367 ctl_port_online(port); 2368 } else if (cmd == CTL_DISABLE_PORT) { 2369 struct ctl_lun *lun; 2370 2371 ctl_port_offline(port); 2372 2373 STAILQ_FOREACH(lun, &softc->lun_list, 2374 links) { 2375 port->lun_disable( 2376 port->targ_lun_arg, 2377 lun->target, 2378 lun->lun); 2379 } 2380 } 2381 2382 mtx_lock(&softc->ctl_lock); 2383 2384 if (cmd == CTL_SET_PORT_WWNS) 2385 ctl_port_set_wwns(port, 2386 (entry->flags & CTL_PORT_WWNN_VALID) ? 2387 1 : 0, entry->wwnn, 2388 (entry->flags & CTL_PORT_WWPN_VALID) ? 2389 1 : 0, entry->wwpn); 2390 } 2391 if (done != 0) 2392 break; 2393 } 2394 mtx_unlock(&softc->ctl_lock); 2395 break; 2396 } 2397 case CTL_GET_PORT_LIST: { 2398 struct ctl_port *port; 2399 struct ctl_port_list *list; 2400 int i; 2401 2402 list = (struct ctl_port_list *)addr; 2403 2404 if (list->alloc_len != (list->alloc_num * 2405 sizeof(struct ctl_port_entry))) { 2406 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2407 "alloc_num %u * sizeof(struct ctl_port_entry) " 2408 "%zu\n", __func__, list->alloc_len, 2409 list->alloc_num, sizeof(struct ctl_port_entry)); 2410 retval = EINVAL; 2411 break; 2412 } 2413 list->fill_len = 0; 2414 list->fill_num = 0; 2415 list->dropped_num = 0; 2416 i = 0; 2417 mtx_lock(&softc->ctl_lock); 2418 STAILQ_FOREACH(port, &softc->port_list, links) { 2419 struct ctl_port_entry entry, *list_entry; 2420 2421 if (list->fill_num >= list->alloc_num) { 2422 list->dropped_num++; 2423 continue; 2424 } 2425 2426 entry.port_type = port->port_type; 2427 strlcpy(entry.port_name, port->port_name, 2428 sizeof(entry.port_name)); 2429 entry.targ_port = port->targ_port; 2430 entry.physical_port = port->physical_port; 2431 entry.virtual_port = port->virtual_port; 2432 entry.wwnn = port->wwnn; 2433 entry.wwpn = port->wwpn; 2434 if (port->status & CTL_PORT_STATUS_ONLINE) 2435 entry.online = 1; 2436 else 2437 entry.online = 0; 2438 2439 list_entry = &list->entries[i]; 2440 2441 retval = copyout(&entry, list_entry, sizeof(entry)); 2442 if (retval != 0) { 2443 printf("%s: CTL_GET_PORT_LIST: copyout " 2444 "returned %d\n", __func__, retval); 2445 break; 2446 } 2447 i++; 2448 list->fill_num++; 2449 list->fill_len += sizeof(entry); 2450 } 2451 mtx_unlock(&softc->ctl_lock); 2452 2453 /* 2454 * If this is non-zero, we had a copyout fault, so there's 2455 * probably no point in attempting to set the status inside 2456 * the structure. 2457 */ 2458 if (retval != 0) 2459 break; 2460 2461 if (list->dropped_num > 0) 2462 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2463 else 2464 list->status = CTL_PORT_LIST_OK; 2465 break; 2466 } 2467 case CTL_DUMP_OOA: { 2468 struct ctl_lun *lun; 2469 union ctl_io *io; 2470 char printbuf[128]; 2471 struct sbuf sb; 2472 2473 mtx_lock(&softc->ctl_lock); 2474 printf("Dumping OOA queues:\n"); 2475 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2476 mtx_lock(&lun->lun_lock); 2477 for (io = (union ctl_io *)TAILQ_FIRST( 2478 &lun->ooa_queue); io != NULL; 2479 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2480 ooa_links)) { 2481 sbuf_new(&sb, printbuf, sizeof(printbuf), 2482 SBUF_FIXEDLEN); 2483 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2484 (intmax_t)lun->lun, 2485 io->scsiio.tag_num, 2486 (io->io_hdr.flags & 2487 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2488 (io->io_hdr.flags & 2489 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2490 (io->io_hdr.flags & 2491 CTL_FLAG_ABORT) ? " ABORT" : "", 2492 (io->io_hdr.flags & 2493 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2494 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2495 sbuf_finish(&sb); 2496 printf("%s\n", sbuf_data(&sb)); 2497 } 2498 mtx_unlock(&lun->lun_lock); 2499 } 2500 printf("OOA queues dump done\n"); 2501 mtx_unlock(&softc->ctl_lock); 2502 break; 2503 } 2504 case CTL_GET_OOA: { 2505 struct ctl_lun *lun; 2506 struct ctl_ooa *ooa_hdr; 2507 struct ctl_ooa_entry *entries; 2508 uint32_t cur_fill_num; 2509 2510 ooa_hdr = (struct ctl_ooa *)addr; 2511 2512 if ((ooa_hdr->alloc_len == 0) 2513 || (ooa_hdr->alloc_num == 0)) { 2514 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2515 "must be non-zero\n", __func__, 2516 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2517 retval = EINVAL; 2518 break; 2519 } 2520 2521 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2522 sizeof(struct ctl_ooa_entry))) { 2523 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2524 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2525 __func__, ooa_hdr->alloc_len, 2526 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2527 retval = EINVAL; 2528 break; 2529 } 2530 2531 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2532 if (entries == NULL) { 2533 printf("%s: could not allocate %d bytes for OOA " 2534 "dump\n", __func__, ooa_hdr->alloc_len); 2535 retval = ENOMEM; 2536 break; 2537 } 2538 2539 mtx_lock(&softc->ctl_lock); 2540 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2541 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2542 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2543 mtx_unlock(&softc->ctl_lock); 2544 free(entries, M_CTL); 2545 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2546 __func__, (uintmax_t)ooa_hdr->lun_num); 2547 retval = EINVAL; 2548 break; 2549 } 2550 2551 cur_fill_num = 0; 2552 2553 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2554 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2555 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2556 ooa_hdr, entries); 2557 if (retval != 0) 2558 break; 2559 } 2560 if (retval != 0) { 2561 mtx_unlock(&softc->ctl_lock); 2562 free(entries, M_CTL); 2563 break; 2564 } 2565 } else { 2566 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2567 2568 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2569 entries); 2570 } 2571 mtx_unlock(&softc->ctl_lock); 2572 2573 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2574 ooa_hdr->fill_len = ooa_hdr->fill_num * 2575 sizeof(struct ctl_ooa_entry); 2576 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2577 if (retval != 0) { 2578 printf("%s: error copying out %d bytes for OOA dump\n", 2579 __func__, ooa_hdr->fill_len); 2580 } 2581 2582 getbintime(&ooa_hdr->cur_bt); 2583 2584 if (cur_fill_num > ooa_hdr->alloc_num) { 2585 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2586 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2587 } else { 2588 ooa_hdr->dropped_num = 0; 2589 ooa_hdr->status = CTL_OOA_OK; 2590 } 2591 2592 free(entries, M_CTL); 2593 break; 2594 } 2595 case CTL_CHECK_OOA: { 2596 union ctl_io *io; 2597 struct ctl_lun *lun; 2598 struct ctl_ooa_info *ooa_info; 2599 2600 2601 ooa_info = (struct ctl_ooa_info *)addr; 2602 2603 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2604 ooa_info->status = CTL_OOA_INVALID_LUN; 2605 break; 2606 } 2607 mtx_lock(&softc->ctl_lock); 2608 lun = softc->ctl_luns[ooa_info->lun_id]; 2609 if (lun == NULL) { 2610 mtx_unlock(&softc->ctl_lock); 2611 ooa_info->status = CTL_OOA_INVALID_LUN; 2612 break; 2613 } 2614 mtx_lock(&lun->lun_lock); 2615 mtx_unlock(&softc->ctl_lock); 2616 ooa_info->num_entries = 0; 2617 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2618 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2619 &io->io_hdr, ooa_links)) { 2620 ooa_info->num_entries++; 2621 } 2622 mtx_unlock(&lun->lun_lock); 2623 2624 ooa_info->status = CTL_OOA_SUCCESS; 2625 2626 break; 2627 } 2628 case CTL_HARD_START: 2629 case CTL_HARD_STOP: { 2630 struct ctl_fe_ioctl_startstop_info ss_info; 2631 struct cfi_metatask *metatask; 2632 struct mtx hs_mtx; 2633 2634 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2635 2636 cv_init(&ss_info.sem, "hard start/stop cv" ); 2637 2638 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2639 if (metatask == NULL) { 2640 retval = ENOMEM; 2641 mtx_destroy(&hs_mtx); 2642 break; 2643 } 2644 2645 if (cmd == CTL_HARD_START) 2646 metatask->tasktype = CFI_TASK_STARTUP; 2647 else 2648 metatask->tasktype = CFI_TASK_SHUTDOWN; 2649 2650 metatask->callback = ctl_ioctl_hard_startstop_callback; 2651 metatask->callback_arg = &ss_info; 2652 2653 cfi_action(metatask); 2654 2655 /* Wait for the callback */ 2656 mtx_lock(&hs_mtx); 2657 cv_wait_sig(&ss_info.sem, &hs_mtx); 2658 mtx_unlock(&hs_mtx); 2659 2660 /* 2661 * All information has been copied from the metatask by the 2662 * time cv_broadcast() is called, so we free the metatask here. 2663 */ 2664 cfi_free_metatask(metatask); 2665 2666 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2667 2668 mtx_destroy(&hs_mtx); 2669 break; 2670 } 2671 case CTL_BBRREAD: { 2672 struct ctl_bbrread_info *bbr_info; 2673 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2674 struct mtx bbr_mtx; 2675 struct cfi_metatask *metatask; 2676 2677 bbr_info = (struct ctl_bbrread_info *)addr; 2678 2679 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2680 2681 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2682 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2683 2684 fe_bbr_info.bbr_info = bbr_info; 2685 fe_bbr_info.lock = &bbr_mtx; 2686 2687 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2688 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2689 2690 if (metatask == NULL) { 2691 mtx_destroy(&bbr_mtx); 2692 cv_destroy(&fe_bbr_info.sem); 2693 retval = ENOMEM; 2694 break; 2695 } 2696 metatask->tasktype = CFI_TASK_BBRREAD; 2697 metatask->callback = ctl_ioctl_bbrread_callback; 2698 metatask->callback_arg = &fe_bbr_info; 2699 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2700 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2701 metatask->taskinfo.bbrread.len = bbr_info->len; 2702 2703 cfi_action(metatask); 2704 2705 mtx_lock(&bbr_mtx); 2706 while (fe_bbr_info.wakeup_done == 0) 2707 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2708 mtx_unlock(&bbr_mtx); 2709 2710 bbr_info->status = metatask->status; 2711 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2712 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2713 memcpy(&bbr_info->sense_data, 2714 &metatask->taskinfo.bbrread.sense_data, 2715 ctl_min(sizeof(bbr_info->sense_data), 2716 sizeof(metatask->taskinfo.bbrread.sense_data))); 2717 2718 cfi_free_metatask(metatask); 2719 2720 mtx_destroy(&bbr_mtx); 2721 cv_destroy(&fe_bbr_info.sem); 2722 2723 break; 2724 } 2725 case CTL_DELAY_IO: { 2726 struct ctl_io_delay_info *delay_info; 2727 #ifdef CTL_IO_DELAY 2728 struct ctl_lun *lun; 2729 #endif /* CTL_IO_DELAY */ 2730 2731 delay_info = (struct ctl_io_delay_info *)addr; 2732 2733 #ifdef CTL_IO_DELAY 2734 mtx_lock(&softc->ctl_lock); 2735 2736 if ((delay_info->lun_id > CTL_MAX_LUNS) 2737 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2738 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2739 } else { 2740 lun = softc->ctl_luns[delay_info->lun_id]; 2741 mtx_lock(&lun->lun_lock); 2742 2743 delay_info->status = CTL_DELAY_STATUS_OK; 2744 2745 switch (delay_info->delay_type) { 2746 case CTL_DELAY_TYPE_CONT: 2747 break; 2748 case CTL_DELAY_TYPE_ONESHOT: 2749 break; 2750 default: 2751 delay_info->status = 2752 CTL_DELAY_STATUS_INVALID_TYPE; 2753 break; 2754 } 2755 2756 switch (delay_info->delay_loc) { 2757 case CTL_DELAY_LOC_DATAMOVE: 2758 lun->delay_info.datamove_type = 2759 delay_info->delay_type; 2760 lun->delay_info.datamove_delay = 2761 delay_info->delay_secs; 2762 break; 2763 case CTL_DELAY_LOC_DONE: 2764 lun->delay_info.done_type = 2765 delay_info->delay_type; 2766 lun->delay_info.done_delay = 2767 delay_info->delay_secs; 2768 break; 2769 default: 2770 delay_info->status = 2771 CTL_DELAY_STATUS_INVALID_LOC; 2772 break; 2773 } 2774 mtx_unlock(&lun->lun_lock); 2775 } 2776 2777 mtx_unlock(&softc->ctl_lock); 2778 #else 2779 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2780 #endif /* CTL_IO_DELAY */ 2781 break; 2782 } 2783 case CTL_REALSYNC_SET: { 2784 int *syncstate; 2785 2786 syncstate = (int *)addr; 2787 2788 mtx_lock(&softc->ctl_lock); 2789 switch (*syncstate) { 2790 case 0: 2791 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2792 break; 2793 case 1: 2794 softc->flags |= CTL_FLAG_REAL_SYNC; 2795 break; 2796 default: 2797 retval = EINVAL; 2798 break; 2799 } 2800 mtx_unlock(&softc->ctl_lock); 2801 break; 2802 } 2803 case CTL_REALSYNC_GET: { 2804 int *syncstate; 2805 2806 syncstate = (int*)addr; 2807 2808 mtx_lock(&softc->ctl_lock); 2809 if (softc->flags & CTL_FLAG_REAL_SYNC) 2810 *syncstate = 1; 2811 else 2812 *syncstate = 0; 2813 mtx_unlock(&softc->ctl_lock); 2814 2815 break; 2816 } 2817 case CTL_SETSYNC: 2818 case CTL_GETSYNC: { 2819 struct ctl_sync_info *sync_info; 2820 struct ctl_lun *lun; 2821 2822 sync_info = (struct ctl_sync_info *)addr; 2823 2824 mtx_lock(&softc->ctl_lock); 2825 lun = softc->ctl_luns[sync_info->lun_id]; 2826 if (lun == NULL) { 2827 mtx_unlock(&softc->ctl_lock); 2828 sync_info->status = CTL_GS_SYNC_NO_LUN; 2829 } 2830 /* 2831 * Get or set the sync interval. We're not bounds checking 2832 * in the set case, hopefully the user won't do something 2833 * silly. 2834 */ 2835 mtx_lock(&lun->lun_lock); 2836 mtx_unlock(&softc->ctl_lock); 2837 if (cmd == CTL_GETSYNC) 2838 sync_info->sync_interval = lun->sync_interval; 2839 else 2840 lun->sync_interval = sync_info->sync_interval; 2841 mtx_unlock(&lun->lun_lock); 2842 2843 sync_info->status = CTL_GS_SYNC_OK; 2844 2845 break; 2846 } 2847 case CTL_GETSTATS: { 2848 struct ctl_stats *stats; 2849 struct ctl_lun *lun; 2850 int i; 2851 2852 stats = (struct ctl_stats *)addr; 2853 2854 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2855 stats->alloc_len) { 2856 stats->status = CTL_SS_NEED_MORE_SPACE; 2857 stats->num_luns = softc->num_luns; 2858 break; 2859 } 2860 /* 2861 * XXX KDM no locking here. If the LUN list changes, 2862 * things can blow up. 2863 */ 2864 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2865 i++, lun = STAILQ_NEXT(lun, links)) { 2866 retval = copyout(&lun->stats, &stats->lun_stats[i], 2867 sizeof(lun->stats)); 2868 if (retval != 0) 2869 break; 2870 } 2871 stats->num_luns = softc->num_luns; 2872 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2873 softc->num_luns; 2874 stats->status = CTL_SS_OK; 2875 #ifdef CTL_TIME_IO 2876 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2877 #else 2878 stats->flags = CTL_STATS_FLAG_NONE; 2879 #endif 2880 getnanouptime(&stats->timestamp); 2881 break; 2882 } 2883 case CTL_ERROR_INJECT: { 2884 struct ctl_error_desc *err_desc, *new_err_desc; 2885 struct ctl_lun *lun; 2886 2887 err_desc = (struct ctl_error_desc *)addr; 2888 2889 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2890 M_WAITOK | M_ZERO); 2891 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2892 2893 mtx_lock(&softc->ctl_lock); 2894 lun = softc->ctl_luns[err_desc->lun_id]; 2895 if (lun == NULL) { 2896 mtx_unlock(&softc->ctl_lock); 2897 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2898 __func__, (uintmax_t)err_desc->lun_id); 2899 retval = EINVAL; 2900 break; 2901 } 2902 mtx_lock(&lun->lun_lock); 2903 mtx_unlock(&softc->ctl_lock); 2904 2905 /* 2906 * We could do some checking here to verify the validity 2907 * of the request, but given the complexity of error 2908 * injection requests, the checking logic would be fairly 2909 * complex. 2910 * 2911 * For now, if the request is invalid, it just won't get 2912 * executed and might get deleted. 2913 */ 2914 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2915 2916 /* 2917 * XXX KDM check to make sure the serial number is unique, 2918 * in case we somehow manage to wrap. That shouldn't 2919 * happen for a very long time, but it's the right thing to 2920 * do. 2921 */ 2922 new_err_desc->serial = lun->error_serial; 2923 err_desc->serial = lun->error_serial; 2924 lun->error_serial++; 2925 2926 mtx_unlock(&lun->lun_lock); 2927 break; 2928 } 2929 case CTL_ERROR_INJECT_DELETE: { 2930 struct ctl_error_desc *delete_desc, *desc, *desc2; 2931 struct ctl_lun *lun; 2932 int delete_done; 2933 2934 delete_desc = (struct ctl_error_desc *)addr; 2935 delete_done = 0; 2936 2937 mtx_lock(&softc->ctl_lock); 2938 lun = softc->ctl_luns[delete_desc->lun_id]; 2939 if (lun == NULL) { 2940 mtx_unlock(&softc->ctl_lock); 2941 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2942 __func__, (uintmax_t)delete_desc->lun_id); 2943 retval = EINVAL; 2944 break; 2945 } 2946 mtx_lock(&lun->lun_lock); 2947 mtx_unlock(&softc->ctl_lock); 2948 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2949 if (desc->serial != delete_desc->serial) 2950 continue; 2951 2952 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2953 links); 2954 free(desc, M_CTL); 2955 delete_done = 1; 2956 } 2957 mtx_unlock(&lun->lun_lock); 2958 if (delete_done == 0) { 2959 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2960 "error serial %ju on LUN %u\n", __func__, 2961 delete_desc->serial, delete_desc->lun_id); 2962 retval = EINVAL; 2963 break; 2964 } 2965 break; 2966 } 2967 case CTL_DUMP_STRUCTS: { 2968 int i, j, k, idx; 2969 struct ctl_port *port; 2970 struct ctl_frontend *fe; 2971 2972 mtx_lock(&softc->ctl_lock); 2973 printf("CTL Persistent Reservation information start:\n"); 2974 for (i = 0; i < CTL_MAX_LUNS; i++) { 2975 struct ctl_lun *lun; 2976 2977 lun = softc->ctl_luns[i]; 2978 2979 if ((lun == NULL) 2980 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2981 continue; 2982 2983 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2984 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2985 idx = j * CTL_MAX_INIT_PER_PORT + k; 2986 if (lun->per_res[idx].registered == 0) 2987 continue; 2988 printf(" LUN %d port %d iid %d key " 2989 "%#jx\n", i, j, k, 2990 (uintmax_t)scsi_8btou64( 2991 lun->per_res[idx].res_key.key)); 2992 } 2993 } 2994 } 2995 printf("CTL Persistent Reservation information end\n"); 2996 printf("CTL Ports:\n"); 2997 STAILQ_FOREACH(port, &softc->port_list, links) { 2998 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2999 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3000 port->frontend->name, port->port_type, 3001 port->physical_port, port->virtual_port, 3002 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3003 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3004 if (port->wwpn_iid[j].in_use == 0 && 3005 port->wwpn_iid[j].wwpn == 0 && 3006 port->wwpn_iid[j].name == NULL) 3007 continue; 3008 3009 printf(" iid %u use %d WWPN %#jx '%s'\n", 3010 j, port->wwpn_iid[j].in_use, 3011 (uintmax_t)port->wwpn_iid[j].wwpn, 3012 port->wwpn_iid[j].name); 3013 } 3014 } 3015 printf("CTL Port information end\n"); 3016 mtx_unlock(&softc->ctl_lock); 3017 /* 3018 * XXX KDM calling this without a lock. We'd likely want 3019 * to drop the lock before calling the frontend's dump 3020 * routine anyway. 3021 */ 3022 printf("CTL Frontends:\n"); 3023 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3024 printf(" Frontend '%s'\n", fe->name); 3025 if (fe->fe_dump != NULL) 3026 fe->fe_dump(); 3027 } 3028 printf("CTL Frontend information end\n"); 3029 break; 3030 } 3031 case CTL_LUN_REQ: { 3032 struct ctl_lun_req *lun_req; 3033 struct ctl_backend_driver *backend; 3034 3035 lun_req = (struct ctl_lun_req *)addr; 3036 3037 backend = ctl_backend_find(lun_req->backend); 3038 if (backend == NULL) { 3039 lun_req->status = CTL_LUN_ERROR; 3040 snprintf(lun_req->error_str, 3041 sizeof(lun_req->error_str), 3042 "Backend \"%s\" not found.", 3043 lun_req->backend); 3044 break; 3045 } 3046 if (lun_req->num_be_args > 0) { 3047 lun_req->kern_be_args = ctl_copyin_args( 3048 lun_req->num_be_args, 3049 lun_req->be_args, 3050 lun_req->error_str, 3051 sizeof(lun_req->error_str)); 3052 if (lun_req->kern_be_args == NULL) { 3053 lun_req->status = CTL_LUN_ERROR; 3054 break; 3055 } 3056 } 3057 3058 retval = backend->ioctl(dev, cmd, addr, flag, td); 3059 3060 if (lun_req->num_be_args > 0) { 3061 ctl_copyout_args(lun_req->num_be_args, 3062 lun_req->kern_be_args); 3063 ctl_free_args(lun_req->num_be_args, 3064 lun_req->kern_be_args); 3065 } 3066 break; 3067 } 3068 case CTL_LUN_LIST: { 3069 struct sbuf *sb; 3070 struct ctl_lun *lun; 3071 struct ctl_lun_list *list; 3072 struct ctl_option *opt; 3073 3074 list = (struct ctl_lun_list *)addr; 3075 3076 /* 3077 * Allocate a fixed length sbuf here, based on the length 3078 * of the user's buffer. We could allocate an auto-extending 3079 * buffer, and then tell the user how much larger our 3080 * amount of data is than his buffer, but that presents 3081 * some problems: 3082 * 3083 * 1. The sbuf(9) routines use a blocking malloc, and so 3084 * we can't hold a lock while calling them with an 3085 * auto-extending buffer. 3086 * 3087 * 2. There is not currently a LUN reference counting 3088 * mechanism, outside of outstanding transactions on 3089 * the LUN's OOA queue. So a LUN could go away on us 3090 * while we're getting the LUN number, backend-specific 3091 * information, etc. Thus, given the way things 3092 * currently work, we need to hold the CTL lock while 3093 * grabbing LUN information. 3094 * 3095 * So, from the user's standpoint, the best thing to do is 3096 * allocate what he thinks is a reasonable buffer length, 3097 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3098 * double the buffer length and try again. (And repeat 3099 * that until he succeeds.) 3100 */ 3101 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3102 if (sb == NULL) { 3103 list->status = CTL_LUN_LIST_ERROR; 3104 snprintf(list->error_str, sizeof(list->error_str), 3105 "Unable to allocate %d bytes for LUN list", 3106 list->alloc_len); 3107 break; 3108 } 3109 3110 sbuf_printf(sb, "<ctllunlist>\n"); 3111 3112 mtx_lock(&softc->ctl_lock); 3113 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3114 mtx_lock(&lun->lun_lock); 3115 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3116 (uintmax_t)lun->lun); 3117 3118 /* 3119 * Bail out as soon as we see that we've overfilled 3120 * the buffer. 3121 */ 3122 if (retval != 0) 3123 break; 3124 3125 retval = sbuf_printf(sb, "\t<backend_type>%s" 3126 "</backend_type>\n", 3127 (lun->backend == NULL) ? "none" : 3128 lun->backend->name); 3129 3130 if (retval != 0) 3131 break; 3132 3133 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3134 lun->be_lun->lun_type); 3135 3136 if (retval != 0) 3137 break; 3138 3139 if (lun->backend == NULL) { 3140 retval = sbuf_printf(sb, "</lun>\n"); 3141 if (retval != 0) 3142 break; 3143 continue; 3144 } 3145 3146 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3147 (lun->be_lun->maxlba > 0) ? 3148 lun->be_lun->maxlba + 1 : 0); 3149 3150 if (retval != 0) 3151 break; 3152 3153 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3154 lun->be_lun->blocksize); 3155 3156 if (retval != 0) 3157 break; 3158 3159 retval = sbuf_printf(sb, "\t<serial_number>"); 3160 3161 if (retval != 0) 3162 break; 3163 3164 retval = ctl_sbuf_printf_esc(sb, 3165 lun->be_lun->serial_num); 3166 3167 if (retval != 0) 3168 break; 3169 3170 retval = sbuf_printf(sb, "</serial_number>\n"); 3171 3172 if (retval != 0) 3173 break; 3174 3175 retval = sbuf_printf(sb, "\t<device_id>"); 3176 3177 if (retval != 0) 3178 break; 3179 3180 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3181 3182 if (retval != 0) 3183 break; 3184 3185 retval = sbuf_printf(sb, "</device_id>\n"); 3186 3187 if (retval != 0) 3188 break; 3189 3190 if (lun->backend->lun_info != NULL) { 3191 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3192 if (retval != 0) 3193 break; 3194 } 3195 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3196 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3197 opt->name, opt->value, opt->name); 3198 if (retval != 0) 3199 break; 3200 } 3201 3202 retval = sbuf_printf(sb, "</lun>\n"); 3203 3204 if (retval != 0) 3205 break; 3206 mtx_unlock(&lun->lun_lock); 3207 } 3208 if (lun != NULL) 3209 mtx_unlock(&lun->lun_lock); 3210 mtx_unlock(&softc->ctl_lock); 3211 3212 if ((retval != 0) 3213 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3214 retval = 0; 3215 sbuf_delete(sb); 3216 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3217 snprintf(list->error_str, sizeof(list->error_str), 3218 "Out of space, %d bytes is too small", 3219 list->alloc_len); 3220 break; 3221 } 3222 3223 sbuf_finish(sb); 3224 3225 retval = copyout(sbuf_data(sb), list->lun_xml, 3226 sbuf_len(sb) + 1); 3227 3228 list->fill_len = sbuf_len(sb) + 1; 3229 list->status = CTL_LUN_LIST_OK; 3230 sbuf_delete(sb); 3231 break; 3232 } 3233 case CTL_ISCSI: { 3234 struct ctl_iscsi *ci; 3235 struct ctl_frontend *fe; 3236 3237 ci = (struct ctl_iscsi *)addr; 3238 3239 fe = ctl_frontend_find("iscsi"); 3240 if (fe == NULL) { 3241 ci->status = CTL_ISCSI_ERROR; 3242 snprintf(ci->error_str, sizeof(ci->error_str), 3243 "Frontend \"iscsi\" not found."); 3244 break; 3245 } 3246 3247 retval = fe->ioctl(dev, cmd, addr, flag, td); 3248 break; 3249 } 3250 case CTL_PORT_REQ: { 3251 struct ctl_req *req; 3252 struct ctl_frontend *fe; 3253 3254 req = (struct ctl_req *)addr; 3255 3256 fe = ctl_frontend_find(req->driver); 3257 if (fe == NULL) { 3258 req->status = CTL_LUN_ERROR; 3259 snprintf(req->error_str, sizeof(req->error_str), 3260 "Frontend \"%s\" not found.", req->driver); 3261 break; 3262 } 3263 if (req->num_args > 0) { 3264 req->kern_args = ctl_copyin_args(req->num_args, 3265 req->args, req->error_str, sizeof(req->error_str)); 3266 if (req->kern_args == NULL) { 3267 req->status = CTL_LUN_ERROR; 3268 break; 3269 } 3270 } 3271 3272 retval = fe->ioctl(dev, cmd, addr, flag, td); 3273 3274 if (req->num_args > 0) { 3275 ctl_copyout_args(req->num_args, req->kern_args); 3276 ctl_free_args(req->num_args, req->kern_args); 3277 } 3278 break; 3279 } 3280 case CTL_PORT_LIST: { 3281 struct sbuf *sb; 3282 struct ctl_port *port; 3283 struct ctl_lun_list *list; 3284 struct ctl_option *opt; 3285 3286 list = (struct ctl_lun_list *)addr; 3287 3288 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3289 if (sb == NULL) { 3290 list->status = CTL_LUN_LIST_ERROR; 3291 snprintf(list->error_str, sizeof(list->error_str), 3292 "Unable to allocate %d bytes for LUN list", 3293 list->alloc_len); 3294 break; 3295 } 3296 3297 sbuf_printf(sb, "<ctlportlist>\n"); 3298 3299 mtx_lock(&softc->ctl_lock); 3300 STAILQ_FOREACH(port, &softc->port_list, links) { 3301 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3302 (uintmax_t)port->targ_port); 3303 3304 /* 3305 * Bail out as soon as we see that we've overfilled 3306 * the buffer. 3307 */ 3308 if (retval != 0) 3309 break; 3310 3311 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3312 "</frontend_type>\n", port->frontend->name); 3313 if (retval != 0) 3314 break; 3315 3316 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3317 port->port_type); 3318 if (retval != 0) 3319 break; 3320 3321 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3322 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3323 if (retval != 0) 3324 break; 3325 3326 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3327 port->port_name); 3328 if (retval != 0) 3329 break; 3330 3331 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3332 port->physical_port); 3333 if (retval != 0) 3334 break; 3335 3336 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3337 port->virtual_port); 3338 if (retval != 0) 3339 break; 3340 3341 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3342 (uintmax_t)port->wwnn); 3343 if (retval != 0) 3344 break; 3345 3346 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3347 (uintmax_t)port->wwpn); 3348 if (retval != 0) 3349 break; 3350 3351 if (port->port_info != NULL) { 3352 retval = port->port_info(port->onoff_arg, sb); 3353 if (retval != 0) 3354 break; 3355 } 3356 STAILQ_FOREACH(opt, &port->options, links) { 3357 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3358 opt->name, opt->value, opt->name); 3359 if (retval != 0) 3360 break; 3361 } 3362 3363 retval = sbuf_printf(sb, "</targ_port>\n"); 3364 if (retval != 0) 3365 break; 3366 } 3367 mtx_unlock(&softc->ctl_lock); 3368 3369 if ((retval != 0) 3370 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3371 retval = 0; 3372 sbuf_delete(sb); 3373 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3374 snprintf(list->error_str, sizeof(list->error_str), 3375 "Out of space, %d bytes is too small", 3376 list->alloc_len); 3377 break; 3378 } 3379 3380 sbuf_finish(sb); 3381 3382 retval = copyout(sbuf_data(sb), list->lun_xml, 3383 sbuf_len(sb) + 1); 3384 3385 list->fill_len = sbuf_len(sb) + 1; 3386 list->status = CTL_LUN_LIST_OK; 3387 sbuf_delete(sb); 3388 break; 3389 } 3390 default: { 3391 /* XXX KDM should we fix this? */ 3392 #if 0 3393 struct ctl_backend_driver *backend; 3394 unsigned int type; 3395 int found; 3396 3397 found = 0; 3398 3399 /* 3400 * We encode the backend type as the ioctl type for backend 3401 * ioctls. So parse it out here, and then search for a 3402 * backend of this type. 3403 */ 3404 type = _IOC_TYPE(cmd); 3405 3406 STAILQ_FOREACH(backend, &softc->be_list, links) { 3407 if (backend->type == type) { 3408 found = 1; 3409 break; 3410 } 3411 } 3412 if (found == 0) { 3413 printf("ctl: unknown ioctl command %#lx or backend " 3414 "%d\n", cmd, type); 3415 retval = EINVAL; 3416 break; 3417 } 3418 retval = backend->ioctl(dev, cmd, addr, flag, td); 3419 #endif 3420 retval = ENOTTY; 3421 break; 3422 } 3423 } 3424 return (retval); 3425 } 3426 3427 uint32_t 3428 ctl_get_initindex(struct ctl_nexus *nexus) 3429 { 3430 if (nexus->targ_port < CTL_MAX_PORTS) 3431 return (nexus->initid.id + 3432 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3433 else 3434 return (nexus->initid.id + 3435 ((nexus->targ_port - CTL_MAX_PORTS) * 3436 CTL_MAX_INIT_PER_PORT)); 3437 } 3438 3439 uint32_t 3440 ctl_get_resindex(struct ctl_nexus *nexus) 3441 { 3442 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3443 } 3444 3445 uint32_t 3446 ctl_port_idx(int port_num) 3447 { 3448 if (port_num < CTL_MAX_PORTS) 3449 return(port_num); 3450 else 3451 return(port_num - CTL_MAX_PORTS); 3452 } 3453 3454 static uint32_t 3455 ctl_map_lun(int port_num, uint32_t lun_id) 3456 { 3457 struct ctl_port *port; 3458 3459 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3460 if (port == NULL) 3461 return (UINT32_MAX); 3462 if (port->lun_map == NULL) 3463 return (lun_id); 3464 return (port->lun_map(port->targ_lun_arg, lun_id)); 3465 } 3466 3467 static uint32_t 3468 ctl_map_lun_back(int port_num, uint32_t lun_id) 3469 { 3470 struct ctl_port *port; 3471 uint32_t i; 3472 3473 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3474 if (port->lun_map == NULL) 3475 return (lun_id); 3476 for (i = 0; i < CTL_MAX_LUNS; i++) { 3477 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3478 return (i); 3479 } 3480 return (UINT32_MAX); 3481 } 3482 3483 /* 3484 * Note: This only works for bitmask sizes that are at least 32 bits, and 3485 * that are a power of 2. 3486 */ 3487 int 3488 ctl_ffz(uint32_t *mask, uint32_t size) 3489 { 3490 uint32_t num_chunks, num_pieces; 3491 int i, j; 3492 3493 num_chunks = (size >> 5); 3494 if (num_chunks == 0) 3495 num_chunks++; 3496 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3497 3498 for (i = 0; i < num_chunks; i++) { 3499 for (j = 0; j < num_pieces; j++) { 3500 if ((mask[i] & (1 << j)) == 0) 3501 return ((i << 5) + j); 3502 } 3503 } 3504 3505 return (-1); 3506 } 3507 3508 int 3509 ctl_set_mask(uint32_t *mask, uint32_t bit) 3510 { 3511 uint32_t chunk, piece; 3512 3513 chunk = bit >> 5; 3514 piece = bit % (sizeof(uint32_t) * 8); 3515 3516 if ((mask[chunk] & (1 << piece)) != 0) 3517 return (-1); 3518 else 3519 mask[chunk] |= (1 << piece); 3520 3521 return (0); 3522 } 3523 3524 int 3525 ctl_clear_mask(uint32_t *mask, uint32_t bit) 3526 { 3527 uint32_t chunk, piece; 3528 3529 chunk = bit >> 5; 3530 piece = bit % (sizeof(uint32_t) * 8); 3531 3532 if ((mask[chunk] & (1 << piece)) == 0) 3533 return (-1); 3534 else 3535 mask[chunk] &= ~(1 << piece); 3536 3537 return (0); 3538 } 3539 3540 int 3541 ctl_is_set(uint32_t *mask, uint32_t bit) 3542 { 3543 uint32_t chunk, piece; 3544 3545 chunk = bit >> 5; 3546 piece = bit % (sizeof(uint32_t) * 8); 3547 3548 if ((mask[chunk] & (1 << piece)) == 0) 3549 return (0); 3550 else 3551 return (1); 3552 } 3553 3554 #ifdef unused 3555 /* 3556 * The bus, target and lun are optional, they can be filled in later. 3557 * can_wait is used to determine whether we can wait on the malloc or not. 3558 */ 3559 union ctl_io* 3560 ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3561 uint32_t targ_lun, int can_wait) 3562 { 3563 union ctl_io *io; 3564 3565 if (can_wait) 3566 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3567 else 3568 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3569 3570 if (io != NULL) { 3571 io->io_hdr.io_type = io_type; 3572 io->io_hdr.targ_port = targ_port; 3573 /* 3574 * XXX KDM this needs to change/go away. We need to move 3575 * to a preallocated pool of ctl_scsiio structures. 3576 */ 3577 io->io_hdr.nexus.targ_target.id = targ_target; 3578 io->io_hdr.nexus.targ_lun = targ_lun; 3579 } 3580 3581 return (io); 3582 } 3583 3584 void 3585 ctl_kfree_io(union ctl_io *io) 3586 { 3587 free(io, M_CTL); 3588 } 3589 #endif /* unused */ 3590 3591 /* 3592 * ctl_softc, pool_type, total_ctl_io are passed in. 3593 * npool is passed out. 3594 */ 3595 int 3596 ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3597 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3598 { 3599 uint32_t i; 3600 union ctl_io *cur_io, *next_io; 3601 struct ctl_io_pool *pool; 3602 int retval; 3603 3604 retval = 0; 3605 3606 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3607 M_NOWAIT | M_ZERO); 3608 if (pool == NULL) { 3609 retval = ENOMEM; 3610 goto bailout; 3611 } 3612 3613 pool->type = pool_type; 3614 pool->ctl_softc = ctl_softc; 3615 3616 mtx_lock(&ctl_softc->pool_lock); 3617 pool->id = ctl_softc->cur_pool_id++; 3618 mtx_unlock(&ctl_softc->pool_lock); 3619 3620 pool->flags = CTL_POOL_FLAG_NONE; 3621 pool->refcount = 1; /* Reference for validity. */ 3622 STAILQ_INIT(&pool->free_queue); 3623 3624 /* 3625 * XXX KDM other options here: 3626 * - allocate a page at a time 3627 * - allocate one big chunk of memory. 3628 * Page allocation might work well, but would take a little more 3629 * tracking. 3630 */ 3631 for (i = 0; i < total_ctl_io; i++) { 3632 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3633 M_NOWAIT); 3634 if (cur_io == NULL) { 3635 retval = ENOMEM; 3636 break; 3637 } 3638 cur_io->io_hdr.pool = pool; 3639 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3640 pool->total_ctl_io++; 3641 pool->free_ctl_io++; 3642 } 3643 3644 if (retval != 0) { 3645 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3646 cur_io != NULL; cur_io = next_io) { 3647 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3648 links); 3649 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3650 ctl_io_hdr, links); 3651 free(cur_io, M_CTLIO); 3652 } 3653 3654 free(pool, M_CTL); 3655 goto bailout; 3656 } 3657 mtx_lock(&ctl_softc->pool_lock); 3658 ctl_softc->num_pools++; 3659 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3660 /* 3661 * Increment our usage count if this is an external consumer, so we 3662 * can't get unloaded until the external consumer (most likely a 3663 * FETD) unloads and frees his pool. 3664 * 3665 * XXX KDM will this increment the caller's module use count, or 3666 * mine? 3667 */ 3668 #if 0 3669 if ((pool_type != CTL_POOL_EMERGENCY) 3670 && (pool_type != CTL_POOL_INTERNAL) 3671 && (pool_type != CTL_POOL_4OTHERSC)) 3672 MOD_INC_USE_COUNT; 3673 #endif 3674 3675 mtx_unlock(&ctl_softc->pool_lock); 3676 3677 *npool = pool; 3678 3679 bailout: 3680 3681 return (retval); 3682 } 3683 3684 static int 3685 ctl_pool_acquire(struct ctl_io_pool *pool) 3686 { 3687 3688 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3689 3690 if (pool->flags & CTL_POOL_FLAG_INVALID) 3691 return (EINVAL); 3692 3693 pool->refcount++; 3694 3695 return (0); 3696 } 3697 3698 static void 3699 ctl_pool_release(struct ctl_io_pool *pool) 3700 { 3701 struct ctl_softc *ctl_softc = pool->ctl_softc; 3702 union ctl_io *io; 3703 3704 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3705 3706 if (--pool->refcount != 0) 3707 return; 3708 3709 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3710 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3711 links); 3712 free(io, M_CTLIO); 3713 } 3714 3715 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3716 ctl_softc->num_pools--; 3717 3718 /* 3719 * XXX KDM will this decrement the caller's usage count or mine? 3720 */ 3721 #if 0 3722 if ((pool->type != CTL_POOL_EMERGENCY) 3723 && (pool->type != CTL_POOL_INTERNAL) 3724 && (pool->type != CTL_POOL_4OTHERSC)) 3725 MOD_DEC_USE_COUNT; 3726 #endif 3727 3728 free(pool, M_CTL); 3729 } 3730 3731 void 3732 ctl_pool_free(struct ctl_io_pool *pool) 3733 { 3734 struct ctl_softc *ctl_softc; 3735 3736 if (pool == NULL) 3737 return; 3738 3739 ctl_softc = pool->ctl_softc; 3740 mtx_lock(&ctl_softc->pool_lock); 3741 pool->flags |= CTL_POOL_FLAG_INVALID; 3742 ctl_pool_release(pool); 3743 mtx_unlock(&ctl_softc->pool_lock); 3744 } 3745 3746 /* 3747 * This routine does not block (except for spinlocks of course). 3748 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3749 * possible. 3750 */ 3751 union ctl_io * 3752 ctl_alloc_io(void *pool_ref) 3753 { 3754 union ctl_io *io; 3755 struct ctl_softc *ctl_softc; 3756 struct ctl_io_pool *pool, *npool; 3757 struct ctl_io_pool *emergency_pool; 3758 3759 pool = (struct ctl_io_pool *)pool_ref; 3760 3761 if (pool == NULL) { 3762 printf("%s: pool is NULL\n", __func__); 3763 return (NULL); 3764 } 3765 3766 emergency_pool = NULL; 3767 3768 ctl_softc = pool->ctl_softc; 3769 3770 mtx_lock(&ctl_softc->pool_lock); 3771 /* 3772 * First, try to get the io structure from the user's pool. 3773 */ 3774 if (ctl_pool_acquire(pool) == 0) { 3775 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3776 if (io != NULL) { 3777 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3778 pool->total_allocated++; 3779 pool->free_ctl_io--; 3780 mtx_unlock(&ctl_softc->pool_lock); 3781 return (io); 3782 } else 3783 ctl_pool_release(pool); 3784 } 3785 /* 3786 * If he doesn't have any io structures left, search for an 3787 * emergency pool and grab one from there. 3788 */ 3789 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3790 if (npool->type != CTL_POOL_EMERGENCY) 3791 continue; 3792 3793 if (ctl_pool_acquire(npool) != 0) 3794 continue; 3795 3796 emergency_pool = npool; 3797 3798 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3799 if (io != NULL) { 3800 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3801 npool->total_allocated++; 3802 npool->free_ctl_io--; 3803 mtx_unlock(&ctl_softc->pool_lock); 3804 return (io); 3805 } else 3806 ctl_pool_release(npool); 3807 } 3808 3809 /* Drop the spinlock before we malloc */ 3810 mtx_unlock(&ctl_softc->pool_lock); 3811 3812 /* 3813 * The emergency pool (if it exists) didn't have one, so try an 3814 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3815 */ 3816 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3817 if (io != NULL) { 3818 /* 3819 * If the emergency pool exists but is empty, add this 3820 * ctl_io to its list when it gets freed. 3821 */ 3822 if (emergency_pool != NULL) { 3823 mtx_lock(&ctl_softc->pool_lock); 3824 if (ctl_pool_acquire(emergency_pool) == 0) { 3825 io->io_hdr.pool = emergency_pool; 3826 emergency_pool->total_ctl_io++; 3827 /* 3828 * Need to bump this, otherwise 3829 * total_allocated and total_freed won't 3830 * match when we no longer have anything 3831 * outstanding. 3832 */ 3833 emergency_pool->total_allocated++; 3834 } 3835 mtx_unlock(&ctl_softc->pool_lock); 3836 } else 3837 io->io_hdr.pool = NULL; 3838 } 3839 3840 return (io); 3841 } 3842 3843 void 3844 ctl_free_io(union ctl_io *io) 3845 { 3846 if (io == NULL) 3847 return; 3848 3849 /* 3850 * If this ctl_io has a pool, return it to that pool. 3851 */ 3852 if (io->io_hdr.pool != NULL) { 3853 struct ctl_io_pool *pool; 3854 3855 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3856 mtx_lock(&pool->ctl_softc->pool_lock); 3857 io->io_hdr.io_type = 0xff; 3858 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3859 pool->total_freed++; 3860 pool->free_ctl_io++; 3861 ctl_pool_release(pool); 3862 mtx_unlock(&pool->ctl_softc->pool_lock); 3863 } else { 3864 /* 3865 * Otherwise, just free it. We probably malloced it and 3866 * the emergency pool wasn't available. 3867 */ 3868 free(io, M_CTLIO); 3869 } 3870 3871 } 3872 3873 void 3874 ctl_zero_io(union ctl_io *io) 3875 { 3876 void *pool_ref; 3877 3878 if (io == NULL) 3879 return; 3880 3881 /* 3882 * May need to preserve linked list pointers at some point too. 3883 */ 3884 pool_ref = io->io_hdr.pool; 3885 3886 memset(io, 0, sizeof(*io)); 3887 3888 io->io_hdr.pool = pool_ref; 3889 } 3890 3891 /* 3892 * This routine is currently used for internal copies of ctl_ios that need 3893 * to persist for some reason after we've already returned status to the 3894 * FETD. (Thus the flag set.) 3895 * 3896 * XXX XXX 3897 * Note that this makes a blind copy of all fields in the ctl_io, except 3898 * for the pool reference. This includes any memory that has been 3899 * allocated! That memory will no longer be valid after done has been 3900 * called, so this would be VERY DANGEROUS for command that actually does 3901 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3902 * start and stop commands, which don't transfer any data, so this is not a 3903 * problem. If it is used for anything else, the caller would also need to 3904 * allocate data buffer space and this routine would need to be modified to 3905 * copy the data buffer(s) as well. 3906 */ 3907 void 3908 ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3909 { 3910 void *pool_ref; 3911 3912 if ((src == NULL) 3913 || (dest == NULL)) 3914 return; 3915 3916 /* 3917 * May need to preserve linked list pointers at some point too. 3918 */ 3919 pool_ref = dest->io_hdr.pool; 3920 3921 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3922 3923 dest->io_hdr.pool = pool_ref; 3924 /* 3925 * We need to know that this is an internal copy, and doesn't need 3926 * to get passed back to the FETD that allocated it. 3927 */ 3928 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3929 } 3930 3931 #ifdef NEEDTOPORT 3932 static void 3933 ctl_update_power_subpage(struct copan_power_subpage *page) 3934 { 3935 int num_luns, num_partitions, config_type; 3936 struct ctl_softc *softc; 3937 cs_BOOL_t aor_present, shelf_50pct_power; 3938 cs_raidset_personality_t rs_type; 3939 int max_active_luns; 3940 3941 softc = control_softc; 3942 3943 /* subtract out the processor LUN */ 3944 num_luns = softc->num_luns - 1; 3945 /* 3946 * Default to 7 LUNs active, which was the only number we allowed 3947 * in the past. 3948 */ 3949 max_active_luns = 7; 3950 3951 num_partitions = config_GetRsPartitionInfo(); 3952 config_type = config_GetConfigType(); 3953 shelf_50pct_power = config_GetShelfPowerMode(); 3954 aor_present = config_IsAorRsPresent(); 3955 3956 rs_type = ddb_GetRsRaidType(1); 3957 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3958 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3959 EPRINT(0, "Unsupported RS type %d!", rs_type); 3960 } 3961 3962 3963 page->total_luns = num_luns; 3964 3965 switch (config_type) { 3966 case 40: 3967 /* 3968 * In a 40 drive configuration, it doesn't matter what DC 3969 * cards we have, whether we have AOR enabled or not, 3970 * partitioning or not, or what type of RAIDset we have. 3971 * In that scenario, we can power up every LUN we present 3972 * to the user. 3973 */ 3974 max_active_luns = num_luns; 3975 3976 break; 3977 case 64: 3978 if (shelf_50pct_power == CS_FALSE) { 3979 /* 25% power */ 3980 if (aor_present == CS_TRUE) { 3981 if (rs_type == 3982 CS_RAIDSET_PERSONALITY_RAID5) { 3983 max_active_luns = 7; 3984 } else if (rs_type == 3985 CS_RAIDSET_PERSONALITY_RAID1){ 3986 max_active_luns = 14; 3987 } else { 3988 /* XXX KDM now what?? */ 3989 } 3990 } else { 3991 if (rs_type == 3992 CS_RAIDSET_PERSONALITY_RAID5) { 3993 max_active_luns = 8; 3994 } else if (rs_type == 3995 CS_RAIDSET_PERSONALITY_RAID1){ 3996 max_active_luns = 16; 3997 } else { 3998 /* XXX KDM now what?? */ 3999 } 4000 } 4001 } else { 4002 /* 50% power */ 4003 /* 4004 * With 50% power in a 64 drive configuration, we 4005 * can power all LUNs we present. 4006 */ 4007 max_active_luns = num_luns; 4008 } 4009 break; 4010 case 112: 4011 if (shelf_50pct_power == CS_FALSE) { 4012 /* 25% power */ 4013 if (aor_present == CS_TRUE) { 4014 if (rs_type == 4015 CS_RAIDSET_PERSONALITY_RAID5) { 4016 max_active_luns = 7; 4017 } else if (rs_type == 4018 CS_RAIDSET_PERSONALITY_RAID1){ 4019 max_active_luns = 14; 4020 } else { 4021 /* XXX KDM now what?? */ 4022 } 4023 } else { 4024 if (rs_type == 4025 CS_RAIDSET_PERSONALITY_RAID5) { 4026 max_active_luns = 8; 4027 } else if (rs_type == 4028 CS_RAIDSET_PERSONALITY_RAID1){ 4029 max_active_luns = 16; 4030 } else { 4031 /* XXX KDM now what?? */ 4032 } 4033 } 4034 } else { 4035 /* 50% power */ 4036 if (aor_present == CS_TRUE) { 4037 if (rs_type == 4038 CS_RAIDSET_PERSONALITY_RAID5) { 4039 max_active_luns = 14; 4040 } else if (rs_type == 4041 CS_RAIDSET_PERSONALITY_RAID1){ 4042 /* 4043 * We're assuming here that disk 4044 * caching is enabled, and so we're 4045 * able to power up half of each 4046 * LUN, and cache all writes. 4047 */ 4048 max_active_luns = num_luns; 4049 } else { 4050 /* XXX KDM now what?? */ 4051 } 4052 } else { 4053 if (rs_type == 4054 CS_RAIDSET_PERSONALITY_RAID5) { 4055 max_active_luns = 15; 4056 } else if (rs_type == 4057 CS_RAIDSET_PERSONALITY_RAID1){ 4058 max_active_luns = 30; 4059 } else { 4060 /* XXX KDM now what?? */ 4061 } 4062 } 4063 } 4064 break; 4065 default: 4066 /* 4067 * In this case, we have an unknown configuration, so we 4068 * just use the default from above. 4069 */ 4070 break; 4071 } 4072 4073 page->max_active_luns = max_active_luns; 4074 #if 0 4075 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4076 page->total_luns, page->max_active_luns); 4077 #endif 4078 } 4079 #endif /* NEEDTOPORT */ 4080 4081 /* 4082 * This routine could be used in the future to load default and/or saved 4083 * mode page parameters for a particuar lun. 4084 */ 4085 static int 4086 ctl_init_page_index(struct ctl_lun *lun) 4087 { 4088 int i; 4089 struct ctl_page_index *page_index; 4090 struct ctl_softc *softc; 4091 4092 memcpy(&lun->mode_pages.index, page_index_template, 4093 sizeof(page_index_template)); 4094 4095 softc = lun->ctl_softc; 4096 4097 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4098 4099 page_index = &lun->mode_pages.index[i]; 4100 /* 4101 * If this is a disk-only mode page, there's no point in 4102 * setting it up. For some pages, we have to have some 4103 * basic information about the disk in order to calculate the 4104 * mode page data. 4105 */ 4106 if ((lun->be_lun->lun_type != T_DIRECT) 4107 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4108 continue; 4109 4110 switch (page_index->page_code & SMPH_PC_MASK) { 4111 case SMS_FORMAT_DEVICE_PAGE: { 4112 struct scsi_format_page *format_page; 4113 4114 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4115 panic("subpage is incorrect!"); 4116 4117 /* 4118 * Sectors per track are set above. Bytes per 4119 * sector need to be set here on a per-LUN basis. 4120 */ 4121 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4122 &format_page_default, 4123 sizeof(format_page_default)); 4124 memcpy(&lun->mode_pages.format_page[ 4125 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4126 sizeof(format_page_changeable)); 4127 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4128 &format_page_default, 4129 sizeof(format_page_default)); 4130 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4131 &format_page_default, 4132 sizeof(format_page_default)); 4133 4134 format_page = &lun->mode_pages.format_page[ 4135 CTL_PAGE_CURRENT]; 4136 scsi_ulto2b(lun->be_lun->blocksize, 4137 format_page->bytes_per_sector); 4138 4139 format_page = &lun->mode_pages.format_page[ 4140 CTL_PAGE_DEFAULT]; 4141 scsi_ulto2b(lun->be_lun->blocksize, 4142 format_page->bytes_per_sector); 4143 4144 format_page = &lun->mode_pages.format_page[ 4145 CTL_PAGE_SAVED]; 4146 scsi_ulto2b(lun->be_lun->blocksize, 4147 format_page->bytes_per_sector); 4148 4149 page_index->page_data = 4150 (uint8_t *)lun->mode_pages.format_page; 4151 break; 4152 } 4153 case SMS_RIGID_DISK_PAGE: { 4154 struct scsi_rigid_disk_page *rigid_disk_page; 4155 uint32_t sectors_per_cylinder; 4156 uint64_t cylinders; 4157 #ifndef __XSCALE__ 4158 int shift; 4159 #endif /* !__XSCALE__ */ 4160 4161 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4162 panic("invalid subpage value %d", 4163 page_index->subpage); 4164 4165 /* 4166 * Rotation rate and sectors per track are set 4167 * above. We calculate the cylinders here based on 4168 * capacity. Due to the number of heads and 4169 * sectors per track we're using, smaller arrays 4170 * may turn out to have 0 cylinders. Linux and 4171 * FreeBSD don't pay attention to these mode pages 4172 * to figure out capacity, but Solaris does. It 4173 * seems to deal with 0 cylinders just fine, and 4174 * works out a fake geometry based on the capacity. 4175 */ 4176 memcpy(&lun->mode_pages.rigid_disk_page[ 4177 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4178 sizeof(rigid_disk_page_default)); 4179 memcpy(&lun->mode_pages.rigid_disk_page[ 4180 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4181 sizeof(rigid_disk_page_changeable)); 4182 memcpy(&lun->mode_pages.rigid_disk_page[ 4183 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4184 sizeof(rigid_disk_page_default)); 4185 memcpy(&lun->mode_pages.rigid_disk_page[ 4186 CTL_PAGE_SAVED], &rigid_disk_page_default, 4187 sizeof(rigid_disk_page_default)); 4188 4189 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4190 CTL_DEFAULT_HEADS; 4191 4192 /* 4193 * The divide method here will be more accurate, 4194 * probably, but results in floating point being 4195 * used in the kernel on i386 (__udivdi3()). On the 4196 * XScale, though, __udivdi3() is implemented in 4197 * software. 4198 * 4199 * The shift method for cylinder calculation is 4200 * accurate if sectors_per_cylinder is a power of 4201 * 2. Otherwise it might be slightly off -- you 4202 * might have a bit of a truncation problem. 4203 */ 4204 #ifdef __XSCALE__ 4205 cylinders = (lun->be_lun->maxlba + 1) / 4206 sectors_per_cylinder; 4207 #else 4208 for (shift = 31; shift > 0; shift--) { 4209 if (sectors_per_cylinder & (1 << shift)) 4210 break; 4211 } 4212 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4213 #endif 4214 4215 /* 4216 * We've basically got 3 bytes, or 24 bits for the 4217 * cylinder size in the mode page. If we're over, 4218 * just round down to 2^24. 4219 */ 4220 if (cylinders > 0xffffff) 4221 cylinders = 0xffffff; 4222 4223 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4224 CTL_PAGE_CURRENT]; 4225 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4226 4227 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4228 CTL_PAGE_DEFAULT]; 4229 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4230 4231 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4232 CTL_PAGE_SAVED]; 4233 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4234 4235 page_index->page_data = 4236 (uint8_t *)lun->mode_pages.rigid_disk_page; 4237 break; 4238 } 4239 case SMS_CACHING_PAGE: { 4240 4241 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4242 panic("invalid subpage value %d", 4243 page_index->subpage); 4244 /* 4245 * Defaults should be okay here, no calculations 4246 * needed. 4247 */ 4248 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4249 &caching_page_default, 4250 sizeof(caching_page_default)); 4251 memcpy(&lun->mode_pages.caching_page[ 4252 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4253 sizeof(caching_page_changeable)); 4254 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4255 &caching_page_default, 4256 sizeof(caching_page_default)); 4257 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4258 &caching_page_default, 4259 sizeof(caching_page_default)); 4260 page_index->page_data = 4261 (uint8_t *)lun->mode_pages.caching_page; 4262 break; 4263 } 4264 case SMS_CONTROL_MODE_PAGE: { 4265 4266 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4267 panic("invalid subpage value %d", 4268 page_index->subpage); 4269 4270 /* 4271 * Defaults should be okay here, no calculations 4272 * needed. 4273 */ 4274 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4275 &control_page_default, 4276 sizeof(control_page_default)); 4277 memcpy(&lun->mode_pages.control_page[ 4278 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4279 sizeof(control_page_changeable)); 4280 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4281 &control_page_default, 4282 sizeof(control_page_default)); 4283 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4284 &control_page_default, 4285 sizeof(control_page_default)); 4286 page_index->page_data = 4287 (uint8_t *)lun->mode_pages.control_page; 4288 break; 4289 4290 } 4291 case SMS_VENDOR_SPECIFIC_PAGE:{ 4292 switch (page_index->subpage) { 4293 case PWR_SUBPAGE_CODE: { 4294 struct copan_power_subpage *current_page, 4295 *saved_page; 4296 4297 memcpy(&lun->mode_pages.power_subpage[ 4298 CTL_PAGE_CURRENT], 4299 &power_page_default, 4300 sizeof(power_page_default)); 4301 memcpy(&lun->mode_pages.power_subpage[ 4302 CTL_PAGE_CHANGEABLE], 4303 &power_page_changeable, 4304 sizeof(power_page_changeable)); 4305 memcpy(&lun->mode_pages.power_subpage[ 4306 CTL_PAGE_DEFAULT], 4307 &power_page_default, 4308 sizeof(power_page_default)); 4309 memcpy(&lun->mode_pages.power_subpage[ 4310 CTL_PAGE_SAVED], 4311 &power_page_default, 4312 sizeof(power_page_default)); 4313 page_index->page_data = 4314 (uint8_t *)lun->mode_pages.power_subpage; 4315 4316 current_page = (struct copan_power_subpage *) 4317 (page_index->page_data + 4318 (page_index->page_len * 4319 CTL_PAGE_CURRENT)); 4320 saved_page = (struct copan_power_subpage *) 4321 (page_index->page_data + 4322 (page_index->page_len * 4323 CTL_PAGE_SAVED)); 4324 break; 4325 } 4326 case APS_SUBPAGE_CODE: { 4327 struct copan_aps_subpage *current_page, 4328 *saved_page; 4329 4330 // This gets set multiple times but 4331 // it should always be the same. It's 4332 // only done during init so who cares. 4333 index_to_aps_page = i; 4334 4335 memcpy(&lun->mode_pages.aps_subpage[ 4336 CTL_PAGE_CURRENT], 4337 &aps_page_default, 4338 sizeof(aps_page_default)); 4339 memcpy(&lun->mode_pages.aps_subpage[ 4340 CTL_PAGE_CHANGEABLE], 4341 &aps_page_changeable, 4342 sizeof(aps_page_changeable)); 4343 memcpy(&lun->mode_pages.aps_subpage[ 4344 CTL_PAGE_DEFAULT], 4345 &aps_page_default, 4346 sizeof(aps_page_default)); 4347 memcpy(&lun->mode_pages.aps_subpage[ 4348 CTL_PAGE_SAVED], 4349 &aps_page_default, 4350 sizeof(aps_page_default)); 4351 page_index->page_data = 4352 (uint8_t *)lun->mode_pages.aps_subpage; 4353 4354 current_page = (struct copan_aps_subpage *) 4355 (page_index->page_data + 4356 (page_index->page_len * 4357 CTL_PAGE_CURRENT)); 4358 saved_page = (struct copan_aps_subpage *) 4359 (page_index->page_data + 4360 (page_index->page_len * 4361 CTL_PAGE_SAVED)); 4362 break; 4363 } 4364 case DBGCNF_SUBPAGE_CODE: { 4365 struct copan_debugconf_subpage *current_page, 4366 *saved_page; 4367 4368 memcpy(&lun->mode_pages.debugconf_subpage[ 4369 CTL_PAGE_CURRENT], 4370 &debugconf_page_default, 4371 sizeof(debugconf_page_default)); 4372 memcpy(&lun->mode_pages.debugconf_subpage[ 4373 CTL_PAGE_CHANGEABLE], 4374 &debugconf_page_changeable, 4375 sizeof(debugconf_page_changeable)); 4376 memcpy(&lun->mode_pages.debugconf_subpage[ 4377 CTL_PAGE_DEFAULT], 4378 &debugconf_page_default, 4379 sizeof(debugconf_page_default)); 4380 memcpy(&lun->mode_pages.debugconf_subpage[ 4381 CTL_PAGE_SAVED], 4382 &debugconf_page_default, 4383 sizeof(debugconf_page_default)); 4384 page_index->page_data = 4385 (uint8_t *)lun->mode_pages.debugconf_subpage; 4386 4387 current_page = (struct copan_debugconf_subpage *) 4388 (page_index->page_data + 4389 (page_index->page_len * 4390 CTL_PAGE_CURRENT)); 4391 saved_page = (struct copan_debugconf_subpage *) 4392 (page_index->page_data + 4393 (page_index->page_len * 4394 CTL_PAGE_SAVED)); 4395 break; 4396 } 4397 default: 4398 panic("invalid subpage value %d", 4399 page_index->subpage); 4400 break; 4401 } 4402 break; 4403 } 4404 default: 4405 panic("invalid page value %d", 4406 page_index->page_code & SMPH_PC_MASK); 4407 break; 4408 } 4409 } 4410 4411 return (CTL_RETVAL_COMPLETE); 4412 } 4413 4414 /* 4415 * LUN allocation. 4416 * 4417 * Requirements: 4418 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4419 * wants us to allocate the LUN and he can block. 4420 * - ctl_softc is always set 4421 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4422 * 4423 * Returns 0 for success, non-zero (errno) for failure. 4424 */ 4425 static int 4426 ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4427 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4428 { 4429 struct ctl_lun *nlun, *lun; 4430 struct ctl_port *port; 4431 struct scsi_vpd_id_descriptor *desc; 4432 struct scsi_vpd_id_t10 *t10id; 4433 const char *eui, *naa, *scsiname, *vendor; 4434 int lun_number, i, lun_malloced; 4435 int devidlen, idlen1, idlen2 = 0, len; 4436 4437 if (be_lun == NULL) 4438 return (EINVAL); 4439 4440 /* 4441 * We currently only support Direct Access or Processor LUN types. 4442 */ 4443 switch (be_lun->lun_type) { 4444 case T_DIRECT: 4445 break; 4446 case T_PROCESSOR: 4447 break; 4448 case T_SEQUENTIAL: 4449 case T_CHANGER: 4450 default: 4451 be_lun->lun_config_status(be_lun->be_lun, 4452 CTL_LUN_CONFIG_FAILURE); 4453 break; 4454 } 4455 if (ctl_lun == NULL) { 4456 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4457 lun_malloced = 1; 4458 } else { 4459 lun_malloced = 0; 4460 lun = ctl_lun; 4461 } 4462 4463 memset(lun, 0, sizeof(*lun)); 4464 if (lun_malloced) 4465 lun->flags = CTL_LUN_MALLOCED; 4466 4467 /* Generate LUN ID. */ 4468 devidlen = max(CTL_DEVID_MIN_LEN, 4469 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4470 idlen1 = sizeof(*t10id) + devidlen; 4471 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4472 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4473 if (scsiname != NULL) { 4474 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4475 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4476 } 4477 eui = ctl_get_opt(&be_lun->options, "eui"); 4478 if (eui != NULL) { 4479 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4480 } 4481 naa = ctl_get_opt(&be_lun->options, "naa"); 4482 if (naa != NULL) { 4483 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4484 } 4485 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4486 M_CTL, M_WAITOK | M_ZERO); 4487 lun->lun_devid->len = len; 4488 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4489 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4490 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4491 desc->length = idlen1; 4492 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4493 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4494 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4495 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4496 } else { 4497 strncpy(t10id->vendor, vendor, 4498 min(sizeof(t10id->vendor), strlen(vendor))); 4499 } 4500 strncpy((char *)t10id->vendor_spec_id, 4501 (char *)be_lun->device_id, devidlen); 4502 if (scsiname != NULL) { 4503 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4504 desc->length); 4505 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4506 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4507 SVPD_ID_TYPE_SCSI_NAME; 4508 desc->length = idlen2; 4509 strlcpy(desc->identifier, scsiname, idlen2); 4510 } 4511 if (eui != NULL) { 4512 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4513 desc->length); 4514 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4515 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4516 SVPD_ID_TYPE_EUI64; 4517 desc->length = 8; 4518 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4519 } 4520 if (naa != NULL) { 4521 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4522 desc->length); 4523 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4524 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4525 SVPD_ID_TYPE_NAA; 4526 desc->length = 8; 4527 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4528 } 4529 4530 mtx_lock(&ctl_softc->ctl_lock); 4531 /* 4532 * See if the caller requested a particular LUN number. If so, see 4533 * if it is available. Otherwise, allocate the first available LUN. 4534 */ 4535 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4536 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4537 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4538 mtx_unlock(&ctl_softc->ctl_lock); 4539 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4540 printf("ctl: requested LUN ID %d is higher " 4541 "than CTL_MAX_LUNS - 1 (%d)\n", 4542 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4543 } else { 4544 /* 4545 * XXX KDM return an error, or just assign 4546 * another LUN ID in this case?? 4547 */ 4548 printf("ctl: requested LUN ID %d is already " 4549 "in use\n", be_lun->req_lun_id); 4550 } 4551 if (lun->flags & CTL_LUN_MALLOCED) 4552 free(lun, M_CTL); 4553 be_lun->lun_config_status(be_lun->be_lun, 4554 CTL_LUN_CONFIG_FAILURE); 4555 return (ENOSPC); 4556 } 4557 lun_number = be_lun->req_lun_id; 4558 } else { 4559 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4560 if (lun_number == -1) { 4561 mtx_unlock(&ctl_softc->ctl_lock); 4562 printf("ctl: can't allocate LUN on target %ju, out of " 4563 "LUNs\n", (uintmax_t)target_id.id); 4564 if (lun->flags & CTL_LUN_MALLOCED) 4565 free(lun, M_CTL); 4566 be_lun->lun_config_status(be_lun->be_lun, 4567 CTL_LUN_CONFIG_FAILURE); 4568 return (ENOSPC); 4569 } 4570 } 4571 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4572 4573 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4574 lun->target = target_id; 4575 lun->lun = lun_number; 4576 lun->be_lun = be_lun; 4577 /* 4578 * The processor LUN is always enabled. Disk LUNs come on line 4579 * disabled, and must be enabled by the backend. 4580 */ 4581 lun->flags |= CTL_LUN_DISABLED; 4582 lun->backend = be_lun->be; 4583 be_lun->ctl_lun = lun; 4584 be_lun->lun_id = lun_number; 4585 atomic_add_int(&be_lun->be->num_luns, 1); 4586 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4587 lun->flags |= CTL_LUN_STOPPED; 4588 4589 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4590 lun->flags |= CTL_LUN_INOPERABLE; 4591 4592 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4593 lun->flags |= CTL_LUN_PRIMARY_SC; 4594 4595 lun->ctl_softc = ctl_softc; 4596 TAILQ_INIT(&lun->ooa_queue); 4597 TAILQ_INIT(&lun->blocked_queue); 4598 STAILQ_INIT(&lun->error_list); 4599 ctl_tpc_init(lun); 4600 4601 /* 4602 * Initialize the mode page index. 4603 */ 4604 ctl_init_page_index(lun); 4605 4606 /* 4607 * Set the poweron UA for all initiators on this LUN only. 4608 */ 4609 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4610 lun->pending_ua[i] = CTL_UA_POWERON; 4611 4612 /* 4613 * Now, before we insert this lun on the lun list, set the lun 4614 * inventory changed UA for all other luns. 4615 */ 4616 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4617 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4618 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4619 } 4620 } 4621 4622 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4623 4624 ctl_softc->ctl_luns[lun_number] = lun; 4625 4626 ctl_softc->num_luns++; 4627 4628 /* Setup statistics gathering */ 4629 lun->stats.device_type = be_lun->lun_type; 4630 lun->stats.lun_number = lun_number; 4631 if (lun->stats.device_type == T_DIRECT) 4632 lun->stats.blocksize = be_lun->blocksize; 4633 else 4634 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4635 for (i = 0;i < CTL_MAX_PORTS;i++) 4636 lun->stats.ports[i].targ_port = i; 4637 4638 mtx_unlock(&ctl_softc->ctl_lock); 4639 4640 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4641 4642 /* 4643 * Run through each registered FETD and bring it online if it isn't 4644 * already. Enable the target ID if it hasn't been enabled, and 4645 * enable this particular LUN. 4646 */ 4647 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4648 int retval; 4649 4650 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4651 if (retval != 0) { 4652 printf("ctl_alloc_lun: FETD %s port %d returned error " 4653 "%d for lun_enable on target %ju lun %d\n", 4654 port->port_name, port->targ_port, retval, 4655 (uintmax_t)target_id.id, lun_number); 4656 } else 4657 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4658 } 4659 return (0); 4660 } 4661 4662 /* 4663 * Delete a LUN. 4664 * Assumptions: 4665 * - LUN has already been marked invalid and any pending I/O has been taken 4666 * care of. 4667 */ 4668 static int 4669 ctl_free_lun(struct ctl_lun *lun) 4670 { 4671 struct ctl_softc *softc; 4672 #if 0 4673 struct ctl_port *port; 4674 #endif 4675 struct ctl_lun *nlun; 4676 int i; 4677 4678 softc = lun->ctl_softc; 4679 4680 mtx_assert(&softc->ctl_lock, MA_OWNED); 4681 4682 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4683 4684 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4685 4686 softc->ctl_luns[lun->lun] = NULL; 4687 4688 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4689 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4690 4691 softc->num_luns--; 4692 4693 /* 4694 * XXX KDM this scheme only works for a single target/multiple LUN 4695 * setup. It needs to be revamped for a multiple target scheme. 4696 * 4697 * XXX KDM this results in port->lun_disable() getting called twice, 4698 * once when ctl_disable_lun() is called, and a second time here. 4699 * We really need to re-think the LUN disable semantics. There 4700 * should probably be several steps/levels to LUN removal: 4701 * - disable 4702 * - invalidate 4703 * - free 4704 * 4705 * Right now we only have a disable method when communicating to 4706 * the front end ports, at least for individual LUNs. 4707 */ 4708 #if 0 4709 STAILQ_FOREACH(port, &softc->port_list, links) { 4710 int retval; 4711 4712 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4713 lun->lun); 4714 if (retval != 0) { 4715 printf("ctl_free_lun: FETD %s port %d returned error " 4716 "%d for lun_disable on target %ju lun %jd\n", 4717 port->port_name, port->targ_port, retval, 4718 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4719 } 4720 4721 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4722 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4723 4724 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4725 if (retval != 0) { 4726 printf("ctl_free_lun: FETD %s port %d " 4727 "returned error %d for targ_disable on " 4728 "target %ju\n", port->port_name, 4729 port->targ_port, retval, 4730 (uintmax_t)lun->target.id); 4731 } else 4732 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4733 4734 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4735 continue; 4736 4737 #if 0 4738 port->port_offline(port->onoff_arg); 4739 port->status &= ~CTL_PORT_STATUS_ONLINE; 4740 #endif 4741 } 4742 } 4743 #endif 4744 4745 /* 4746 * Tell the backend to free resources, if this LUN has a backend. 4747 */ 4748 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4749 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4750 4751 ctl_tpc_shutdown(lun); 4752 mtx_destroy(&lun->lun_lock); 4753 free(lun->lun_devid, M_CTL); 4754 if (lun->flags & CTL_LUN_MALLOCED) 4755 free(lun, M_CTL); 4756 4757 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4758 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4759 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4760 } 4761 } 4762 4763 return (0); 4764 } 4765 4766 static void 4767 ctl_create_lun(struct ctl_be_lun *be_lun) 4768 { 4769 struct ctl_softc *ctl_softc; 4770 4771 ctl_softc = control_softc; 4772 4773 /* 4774 * ctl_alloc_lun() should handle all potential failure cases. 4775 */ 4776 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4777 } 4778 4779 int 4780 ctl_add_lun(struct ctl_be_lun *be_lun) 4781 { 4782 struct ctl_softc *ctl_softc = control_softc; 4783 4784 mtx_lock(&ctl_softc->ctl_lock); 4785 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4786 mtx_unlock(&ctl_softc->ctl_lock); 4787 wakeup(&ctl_softc->pending_lun_queue); 4788 4789 return (0); 4790 } 4791 4792 int 4793 ctl_enable_lun(struct ctl_be_lun *be_lun) 4794 { 4795 struct ctl_softc *ctl_softc; 4796 struct ctl_port *port, *nport; 4797 struct ctl_lun *lun; 4798 int retval; 4799 4800 ctl_softc = control_softc; 4801 4802 lun = (struct ctl_lun *)be_lun->ctl_lun; 4803 4804 mtx_lock(&ctl_softc->ctl_lock); 4805 mtx_lock(&lun->lun_lock); 4806 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4807 /* 4808 * eh? Why did we get called if the LUN is already 4809 * enabled? 4810 */ 4811 mtx_unlock(&lun->lun_lock); 4812 mtx_unlock(&ctl_softc->ctl_lock); 4813 return (0); 4814 } 4815 lun->flags &= ~CTL_LUN_DISABLED; 4816 mtx_unlock(&lun->lun_lock); 4817 4818 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4819 nport = STAILQ_NEXT(port, links); 4820 4821 /* 4822 * Drop the lock while we call the FETD's enable routine. 4823 * This can lead to a callback into CTL (at least in the 4824 * case of the internal initiator frontend. 4825 */ 4826 mtx_unlock(&ctl_softc->ctl_lock); 4827 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4828 mtx_lock(&ctl_softc->ctl_lock); 4829 if (retval != 0) { 4830 printf("%s: FETD %s port %d returned error " 4831 "%d for lun_enable on target %ju lun %jd\n", 4832 __func__, port->port_name, port->targ_port, retval, 4833 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4834 } 4835 #if 0 4836 else { 4837 /* NOTE: TODO: why does lun enable affect port status? */ 4838 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4839 } 4840 #endif 4841 } 4842 4843 mtx_unlock(&ctl_softc->ctl_lock); 4844 4845 return (0); 4846 } 4847 4848 int 4849 ctl_disable_lun(struct ctl_be_lun *be_lun) 4850 { 4851 struct ctl_softc *ctl_softc; 4852 struct ctl_port *port; 4853 struct ctl_lun *lun; 4854 int retval; 4855 4856 ctl_softc = control_softc; 4857 4858 lun = (struct ctl_lun *)be_lun->ctl_lun; 4859 4860 mtx_lock(&ctl_softc->ctl_lock); 4861 mtx_lock(&lun->lun_lock); 4862 if (lun->flags & CTL_LUN_DISABLED) { 4863 mtx_unlock(&lun->lun_lock); 4864 mtx_unlock(&ctl_softc->ctl_lock); 4865 return (0); 4866 } 4867 lun->flags |= CTL_LUN_DISABLED; 4868 mtx_unlock(&lun->lun_lock); 4869 4870 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4871 mtx_unlock(&ctl_softc->ctl_lock); 4872 /* 4873 * Drop the lock before we call the frontend's disable 4874 * routine, to avoid lock order reversals. 4875 * 4876 * XXX KDM what happens if the frontend list changes while 4877 * we're traversing it? It's unlikely, but should be handled. 4878 */ 4879 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4880 lun->lun); 4881 mtx_lock(&ctl_softc->ctl_lock); 4882 if (retval != 0) { 4883 printf("ctl_alloc_lun: FETD %s port %d returned error " 4884 "%d for lun_disable on target %ju lun %jd\n", 4885 port->port_name, port->targ_port, retval, 4886 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4887 } 4888 } 4889 4890 mtx_unlock(&ctl_softc->ctl_lock); 4891 4892 return (0); 4893 } 4894 4895 int 4896 ctl_start_lun(struct ctl_be_lun *be_lun) 4897 { 4898 struct ctl_softc *ctl_softc; 4899 struct ctl_lun *lun; 4900 4901 ctl_softc = control_softc; 4902 4903 lun = (struct ctl_lun *)be_lun->ctl_lun; 4904 4905 mtx_lock(&lun->lun_lock); 4906 lun->flags &= ~CTL_LUN_STOPPED; 4907 mtx_unlock(&lun->lun_lock); 4908 4909 return (0); 4910 } 4911 4912 int 4913 ctl_stop_lun(struct ctl_be_lun *be_lun) 4914 { 4915 struct ctl_softc *ctl_softc; 4916 struct ctl_lun *lun; 4917 4918 ctl_softc = control_softc; 4919 4920 lun = (struct ctl_lun *)be_lun->ctl_lun; 4921 4922 mtx_lock(&lun->lun_lock); 4923 lun->flags |= CTL_LUN_STOPPED; 4924 mtx_unlock(&lun->lun_lock); 4925 4926 return (0); 4927 } 4928 4929 int 4930 ctl_lun_offline(struct ctl_be_lun *be_lun) 4931 { 4932 struct ctl_softc *ctl_softc; 4933 struct ctl_lun *lun; 4934 4935 ctl_softc = control_softc; 4936 4937 lun = (struct ctl_lun *)be_lun->ctl_lun; 4938 4939 mtx_lock(&lun->lun_lock); 4940 lun->flags |= CTL_LUN_OFFLINE; 4941 mtx_unlock(&lun->lun_lock); 4942 4943 return (0); 4944 } 4945 4946 int 4947 ctl_lun_online(struct ctl_be_lun *be_lun) 4948 { 4949 struct ctl_softc *ctl_softc; 4950 struct ctl_lun *lun; 4951 4952 ctl_softc = control_softc; 4953 4954 lun = (struct ctl_lun *)be_lun->ctl_lun; 4955 4956 mtx_lock(&lun->lun_lock); 4957 lun->flags &= ~CTL_LUN_OFFLINE; 4958 mtx_unlock(&lun->lun_lock); 4959 4960 return (0); 4961 } 4962 4963 int 4964 ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4965 { 4966 struct ctl_softc *ctl_softc; 4967 struct ctl_lun *lun; 4968 4969 ctl_softc = control_softc; 4970 4971 lun = (struct ctl_lun *)be_lun->ctl_lun; 4972 4973 mtx_lock(&lun->lun_lock); 4974 4975 /* 4976 * The LUN needs to be disabled before it can be marked invalid. 4977 */ 4978 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4979 mtx_unlock(&lun->lun_lock); 4980 return (-1); 4981 } 4982 /* 4983 * Mark the LUN invalid. 4984 */ 4985 lun->flags |= CTL_LUN_INVALID; 4986 4987 /* 4988 * If there is nothing in the OOA queue, go ahead and free the LUN. 4989 * If we have something in the OOA queue, we'll free it when the 4990 * last I/O completes. 4991 */ 4992 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4993 mtx_unlock(&lun->lun_lock); 4994 mtx_lock(&ctl_softc->ctl_lock); 4995 ctl_free_lun(lun); 4996 mtx_unlock(&ctl_softc->ctl_lock); 4997 } else 4998 mtx_unlock(&lun->lun_lock); 4999 5000 return (0); 5001 } 5002 5003 int 5004 ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5005 { 5006 struct ctl_softc *ctl_softc; 5007 struct ctl_lun *lun; 5008 5009 ctl_softc = control_softc; 5010 lun = (struct ctl_lun *)be_lun->ctl_lun; 5011 5012 mtx_lock(&lun->lun_lock); 5013 lun->flags |= CTL_LUN_INOPERABLE; 5014 mtx_unlock(&lun->lun_lock); 5015 5016 return (0); 5017 } 5018 5019 int 5020 ctl_lun_operable(struct ctl_be_lun *be_lun) 5021 { 5022 struct ctl_softc *ctl_softc; 5023 struct ctl_lun *lun; 5024 5025 ctl_softc = control_softc; 5026 lun = (struct ctl_lun *)be_lun->ctl_lun; 5027 5028 mtx_lock(&lun->lun_lock); 5029 lun->flags &= ~CTL_LUN_INOPERABLE; 5030 mtx_unlock(&lun->lun_lock); 5031 5032 return (0); 5033 } 5034 5035 int 5036 ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5037 int lock) 5038 { 5039 struct ctl_softc *softc; 5040 struct ctl_lun *lun; 5041 struct copan_aps_subpage *current_sp; 5042 struct ctl_page_index *page_index; 5043 int i; 5044 5045 softc = control_softc; 5046 5047 mtx_lock(&softc->ctl_lock); 5048 5049 lun = (struct ctl_lun *)be_lun->ctl_lun; 5050 mtx_lock(&lun->lun_lock); 5051 5052 page_index = NULL; 5053 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5054 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5055 APS_PAGE_CODE) 5056 continue; 5057 5058 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5059 continue; 5060 page_index = &lun->mode_pages.index[i]; 5061 } 5062 5063 if (page_index == NULL) { 5064 mtx_unlock(&lun->lun_lock); 5065 mtx_unlock(&softc->ctl_lock); 5066 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5067 (uintmax_t)lun->lun); 5068 return (1); 5069 } 5070 #if 0 5071 if ((softc->aps_locked_lun != 0) 5072 && (softc->aps_locked_lun != lun->lun)) { 5073 printf("%s: attempt to lock LUN %llu when %llu is already " 5074 "locked\n"); 5075 mtx_unlock(&lun->lun_lock); 5076 mtx_unlock(&softc->ctl_lock); 5077 return (1); 5078 } 5079 #endif 5080 5081 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5082 (page_index->page_len * CTL_PAGE_CURRENT)); 5083 5084 if (lock != 0) { 5085 current_sp->lock_active = APS_LOCK_ACTIVE; 5086 softc->aps_locked_lun = lun->lun; 5087 } else { 5088 current_sp->lock_active = 0; 5089 softc->aps_locked_lun = 0; 5090 } 5091 5092 5093 /* 5094 * If we're in HA mode, try to send the lock message to the other 5095 * side. 5096 */ 5097 if (ctl_is_single == 0) { 5098 int isc_retval; 5099 union ctl_ha_msg lock_msg; 5100 5101 lock_msg.hdr.nexus = *nexus; 5102 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5103 if (lock != 0) 5104 lock_msg.aps.lock_flag = 1; 5105 else 5106 lock_msg.aps.lock_flag = 0; 5107 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5108 sizeof(lock_msg), 0); 5109 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5110 printf("%s: APS (lock=%d) error returned from " 5111 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5112 mtx_unlock(&lun->lun_lock); 5113 mtx_unlock(&softc->ctl_lock); 5114 return (1); 5115 } 5116 } 5117 5118 mtx_unlock(&lun->lun_lock); 5119 mtx_unlock(&softc->ctl_lock); 5120 5121 return (0); 5122 } 5123 5124 void 5125 ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5126 { 5127 struct ctl_lun *lun; 5128 struct ctl_softc *softc; 5129 int i; 5130 5131 softc = control_softc; 5132 5133 lun = (struct ctl_lun *)be_lun->ctl_lun; 5134 5135 mtx_lock(&lun->lun_lock); 5136 5137 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5138 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5139 5140 mtx_unlock(&lun->lun_lock); 5141 } 5142 5143 /* 5144 * Backend "memory move is complete" callback for requests that never 5145 * make it down to say RAIDCore's configuration code. 5146 */ 5147 int 5148 ctl_config_move_done(union ctl_io *io) 5149 { 5150 int retval; 5151 5152 retval = CTL_RETVAL_COMPLETE; 5153 5154 5155 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5156 /* 5157 * XXX KDM this shouldn't happen, but what if it does? 5158 */ 5159 if (io->io_hdr.io_type != CTL_IO_SCSI) 5160 panic("I/O type isn't CTL_IO_SCSI!"); 5161 5162 if ((io->io_hdr.port_status == 0) 5163 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5164 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5165 io->io_hdr.status = CTL_SUCCESS; 5166 else if ((io->io_hdr.port_status != 0) 5167 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5168 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5169 /* 5170 * For hardware error sense keys, the sense key 5171 * specific value is defined to be a retry count, 5172 * but we use it to pass back an internal FETD 5173 * error code. XXX KDM Hopefully the FETD is only 5174 * using 16 bits for an error code, since that's 5175 * all the space we have in the sks field. 5176 */ 5177 ctl_set_internal_failure(&io->scsiio, 5178 /*sks_valid*/ 1, 5179 /*retry_count*/ 5180 io->io_hdr.port_status); 5181 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5182 free(io->scsiio.kern_data_ptr, M_CTL); 5183 ctl_done(io); 5184 goto bailout; 5185 } 5186 5187 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5188 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5189 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5190 /* 5191 * XXX KDM just assuming a single pointer here, and not a 5192 * S/G list. If we start using S/G lists for config data, 5193 * we'll need to know how to clean them up here as well. 5194 */ 5195 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5196 free(io->scsiio.kern_data_ptr, M_CTL); 5197 /* Hopefully the user has already set the status... */ 5198 ctl_done(io); 5199 } else { 5200 /* 5201 * XXX KDM now we need to continue data movement. Some 5202 * options: 5203 * - call ctl_scsiio() again? We don't do this for data 5204 * writes, because for those at least we know ahead of 5205 * time where the write will go and how long it is. For 5206 * config writes, though, that information is largely 5207 * contained within the write itself, thus we need to 5208 * parse out the data again. 5209 * 5210 * - Call some other function once the data is in? 5211 */ 5212 5213 /* 5214 * XXX KDM call ctl_scsiio() again for now, and check flag 5215 * bits to see whether we're allocated or not. 5216 */ 5217 retval = ctl_scsiio(&io->scsiio); 5218 } 5219 bailout: 5220 return (retval); 5221 } 5222 5223 /* 5224 * This gets called by a backend driver when it is done with a 5225 * data_submit method. 5226 */ 5227 void 5228 ctl_data_submit_done(union ctl_io *io) 5229 { 5230 /* 5231 * If the IO_CONT flag is set, we need to call the supplied 5232 * function to continue processing the I/O, instead of completing 5233 * the I/O just yet. 5234 * 5235 * If there is an error, though, we don't want to keep processing. 5236 * Instead, just send status back to the initiator. 5237 */ 5238 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5239 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5240 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5241 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5242 io->scsiio.io_cont(io); 5243 return; 5244 } 5245 ctl_done(io); 5246 } 5247 5248 /* 5249 * This gets called by a backend driver when it is done with a 5250 * configuration write. 5251 */ 5252 void 5253 ctl_config_write_done(union ctl_io *io) 5254 { 5255 /* 5256 * If the IO_CONT flag is set, we need to call the supplied 5257 * function to continue processing the I/O, instead of completing 5258 * the I/O just yet. 5259 * 5260 * If there is an error, though, we don't want to keep processing. 5261 * Instead, just send status back to the initiator. 5262 */ 5263 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5264 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5265 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5266 io->scsiio.io_cont(io); 5267 return; 5268 } 5269 /* 5270 * Since a configuration write can be done for commands that actually 5271 * have data allocated, like write buffer, and commands that have 5272 * no data, like start/stop unit, we need to check here. 5273 */ 5274 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5275 free(io->scsiio.kern_data_ptr, M_CTL); 5276 ctl_done(io); 5277 } 5278 5279 /* 5280 * SCSI release command. 5281 */ 5282 int 5283 ctl_scsi_release(struct ctl_scsiio *ctsio) 5284 { 5285 int length, longid, thirdparty_id, resv_id; 5286 struct ctl_softc *ctl_softc; 5287 struct ctl_lun *lun; 5288 5289 length = 0; 5290 resv_id = 0; 5291 5292 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5293 5294 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5295 ctl_softc = control_softc; 5296 5297 switch (ctsio->cdb[0]) { 5298 case RELEASE_10: { 5299 struct scsi_release_10 *cdb; 5300 5301 cdb = (struct scsi_release_10 *)ctsio->cdb; 5302 5303 if (cdb->byte2 & SR10_LONGID) 5304 longid = 1; 5305 else 5306 thirdparty_id = cdb->thirdparty_id; 5307 5308 resv_id = cdb->resv_id; 5309 length = scsi_2btoul(cdb->length); 5310 break; 5311 } 5312 } 5313 5314 5315 /* 5316 * XXX KDM right now, we only support LUN reservation. We don't 5317 * support 3rd party reservations, or extent reservations, which 5318 * might actually need the parameter list. If we've gotten this 5319 * far, we've got a LUN reservation. Anything else got kicked out 5320 * above. So, according to SPC, ignore the length. 5321 */ 5322 length = 0; 5323 5324 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5325 && (length > 0)) { 5326 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5327 ctsio->kern_data_len = length; 5328 ctsio->kern_total_len = length; 5329 ctsio->kern_data_resid = 0; 5330 ctsio->kern_rel_offset = 0; 5331 ctsio->kern_sg_entries = 0; 5332 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5333 ctsio->be_move_done = ctl_config_move_done; 5334 ctl_datamove((union ctl_io *)ctsio); 5335 5336 return (CTL_RETVAL_COMPLETE); 5337 } 5338 5339 if (length > 0) 5340 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5341 5342 mtx_lock(&lun->lun_lock); 5343 5344 /* 5345 * According to SPC, it is not an error for an intiator to attempt 5346 * to release a reservation on a LUN that isn't reserved, or that 5347 * is reserved by another initiator. The reservation can only be 5348 * released, though, by the initiator who made it or by one of 5349 * several reset type events. 5350 */ 5351 if (lun->flags & CTL_LUN_RESERVED) { 5352 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5353 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5354 && (ctsio->io_hdr.nexus.targ_target.id == 5355 lun->rsv_nexus.targ_target.id)) { 5356 lun->flags &= ~CTL_LUN_RESERVED; 5357 } 5358 } 5359 5360 mtx_unlock(&lun->lun_lock); 5361 5362 ctsio->scsi_status = SCSI_STATUS_OK; 5363 ctsio->io_hdr.status = CTL_SUCCESS; 5364 5365 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5366 free(ctsio->kern_data_ptr, M_CTL); 5367 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5368 } 5369 5370 ctl_done((union ctl_io *)ctsio); 5371 return (CTL_RETVAL_COMPLETE); 5372 } 5373 5374 int 5375 ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5376 { 5377 int extent, thirdparty, longid; 5378 int resv_id, length; 5379 uint64_t thirdparty_id; 5380 struct ctl_softc *ctl_softc; 5381 struct ctl_lun *lun; 5382 5383 extent = 0; 5384 thirdparty = 0; 5385 longid = 0; 5386 resv_id = 0; 5387 length = 0; 5388 thirdparty_id = 0; 5389 5390 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5391 5392 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5393 ctl_softc = control_softc; 5394 5395 switch (ctsio->cdb[0]) { 5396 case RESERVE_10: { 5397 struct scsi_reserve_10 *cdb; 5398 5399 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5400 5401 if (cdb->byte2 & SR10_LONGID) 5402 longid = 1; 5403 else 5404 thirdparty_id = cdb->thirdparty_id; 5405 5406 resv_id = cdb->resv_id; 5407 length = scsi_2btoul(cdb->length); 5408 break; 5409 } 5410 } 5411 5412 /* 5413 * XXX KDM right now, we only support LUN reservation. We don't 5414 * support 3rd party reservations, or extent reservations, which 5415 * might actually need the parameter list. If we've gotten this 5416 * far, we've got a LUN reservation. Anything else got kicked out 5417 * above. So, according to SPC, ignore the length. 5418 */ 5419 length = 0; 5420 5421 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5422 && (length > 0)) { 5423 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5424 ctsio->kern_data_len = length; 5425 ctsio->kern_total_len = length; 5426 ctsio->kern_data_resid = 0; 5427 ctsio->kern_rel_offset = 0; 5428 ctsio->kern_sg_entries = 0; 5429 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5430 ctsio->be_move_done = ctl_config_move_done; 5431 ctl_datamove((union ctl_io *)ctsio); 5432 5433 return (CTL_RETVAL_COMPLETE); 5434 } 5435 5436 if (length > 0) 5437 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5438 5439 mtx_lock(&lun->lun_lock); 5440 if (lun->flags & CTL_LUN_RESERVED) { 5441 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5442 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5443 || (ctsio->io_hdr.nexus.targ_target.id != 5444 lun->rsv_nexus.targ_target.id)) { 5445 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5446 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5447 goto bailout; 5448 } 5449 } 5450 5451 lun->flags |= CTL_LUN_RESERVED; 5452 lun->rsv_nexus = ctsio->io_hdr.nexus; 5453 5454 ctsio->scsi_status = SCSI_STATUS_OK; 5455 ctsio->io_hdr.status = CTL_SUCCESS; 5456 5457 bailout: 5458 mtx_unlock(&lun->lun_lock); 5459 5460 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5461 free(ctsio->kern_data_ptr, M_CTL); 5462 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5463 } 5464 5465 ctl_done((union ctl_io *)ctsio); 5466 return (CTL_RETVAL_COMPLETE); 5467 } 5468 5469 int 5470 ctl_start_stop(struct ctl_scsiio *ctsio) 5471 { 5472 struct scsi_start_stop_unit *cdb; 5473 struct ctl_lun *lun; 5474 struct ctl_softc *ctl_softc; 5475 int retval; 5476 5477 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5478 5479 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5480 ctl_softc = control_softc; 5481 retval = 0; 5482 5483 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5484 5485 /* 5486 * XXX KDM 5487 * We don't support the immediate bit on a stop unit. In order to 5488 * do that, we would need to code up a way to know that a stop is 5489 * pending, and hold off any new commands until it completes, one 5490 * way or another. Then we could accept or reject those commands 5491 * depending on its status. We would almost need to do the reverse 5492 * of what we do below for an immediate start -- return the copy of 5493 * the ctl_io to the FETD with status to send to the host (and to 5494 * free the copy!) and then free the original I/O once the stop 5495 * actually completes. That way, the OOA queue mechanism can work 5496 * to block commands that shouldn't proceed. Another alternative 5497 * would be to put the copy in the queue in place of the original, 5498 * and return the original back to the caller. That could be 5499 * slightly safer.. 5500 */ 5501 if ((cdb->byte2 & SSS_IMMED) 5502 && ((cdb->how & SSS_START) == 0)) { 5503 ctl_set_invalid_field(ctsio, 5504 /*sks_valid*/ 1, 5505 /*command*/ 1, 5506 /*field*/ 1, 5507 /*bit_valid*/ 1, 5508 /*bit*/ 0); 5509 ctl_done((union ctl_io *)ctsio); 5510 return (CTL_RETVAL_COMPLETE); 5511 } 5512 5513 if ((lun->flags & CTL_LUN_PR_RESERVED) 5514 && ((cdb->how & SSS_START)==0)) { 5515 uint32_t residx; 5516 5517 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5518 if (!lun->per_res[residx].registered 5519 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5520 5521 ctl_set_reservation_conflict(ctsio); 5522 ctl_done((union ctl_io *)ctsio); 5523 return (CTL_RETVAL_COMPLETE); 5524 } 5525 } 5526 5527 /* 5528 * If there is no backend on this device, we can't start or stop 5529 * it. In theory we shouldn't get any start/stop commands in the 5530 * first place at this level if the LUN doesn't have a backend. 5531 * That should get stopped by the command decode code. 5532 */ 5533 if (lun->backend == NULL) { 5534 ctl_set_invalid_opcode(ctsio); 5535 ctl_done((union ctl_io *)ctsio); 5536 return (CTL_RETVAL_COMPLETE); 5537 } 5538 5539 /* 5540 * XXX KDM Copan-specific offline behavior. 5541 * Figure out a reasonable way to port this? 5542 */ 5543 #ifdef NEEDTOPORT 5544 mtx_lock(&lun->lun_lock); 5545 5546 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5547 && (lun->flags & CTL_LUN_OFFLINE)) { 5548 /* 5549 * If the LUN is offline, and the on/offline bit isn't set, 5550 * reject the start or stop. Otherwise, let it through. 5551 */ 5552 mtx_unlock(&lun->lun_lock); 5553 ctl_set_lun_not_ready(ctsio); 5554 ctl_done((union ctl_io *)ctsio); 5555 } else { 5556 mtx_unlock(&lun->lun_lock); 5557 #endif /* NEEDTOPORT */ 5558 /* 5559 * This could be a start or a stop when we're online, 5560 * or a stop/offline or start/online. A start or stop when 5561 * we're offline is covered in the case above. 5562 */ 5563 /* 5564 * In the non-immediate case, we send the request to 5565 * the backend and return status to the user when 5566 * it is done. 5567 * 5568 * In the immediate case, we allocate a new ctl_io 5569 * to hold a copy of the request, and send that to 5570 * the backend. We then set good status on the 5571 * user's request and return it immediately. 5572 */ 5573 if (cdb->byte2 & SSS_IMMED) { 5574 union ctl_io *new_io; 5575 5576 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5577 if (new_io == NULL) { 5578 ctl_set_busy(ctsio); 5579 ctl_done((union ctl_io *)ctsio); 5580 } else { 5581 ctl_copy_io((union ctl_io *)ctsio, 5582 new_io); 5583 retval = lun->backend->config_write(new_io); 5584 ctl_set_success(ctsio); 5585 ctl_done((union ctl_io *)ctsio); 5586 } 5587 } else { 5588 retval = lun->backend->config_write( 5589 (union ctl_io *)ctsio); 5590 } 5591 #ifdef NEEDTOPORT 5592 } 5593 #endif 5594 return (retval); 5595 } 5596 5597 /* 5598 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5599 * we don't really do anything with the LBA and length fields if the user 5600 * passes them in. Instead we'll just flush out the cache for the entire 5601 * LUN. 5602 */ 5603 int 5604 ctl_sync_cache(struct ctl_scsiio *ctsio) 5605 { 5606 struct ctl_lun *lun; 5607 struct ctl_softc *ctl_softc; 5608 uint64_t starting_lba; 5609 uint32_t block_count; 5610 int retval; 5611 5612 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5613 5614 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5615 ctl_softc = control_softc; 5616 retval = 0; 5617 5618 switch (ctsio->cdb[0]) { 5619 case SYNCHRONIZE_CACHE: { 5620 struct scsi_sync_cache *cdb; 5621 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5622 5623 starting_lba = scsi_4btoul(cdb->begin_lba); 5624 block_count = scsi_2btoul(cdb->lb_count); 5625 break; 5626 } 5627 case SYNCHRONIZE_CACHE_16: { 5628 struct scsi_sync_cache_16 *cdb; 5629 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5630 5631 starting_lba = scsi_8btou64(cdb->begin_lba); 5632 block_count = scsi_4btoul(cdb->lb_count); 5633 break; 5634 } 5635 default: 5636 ctl_set_invalid_opcode(ctsio); 5637 ctl_done((union ctl_io *)ctsio); 5638 goto bailout; 5639 break; /* NOTREACHED */ 5640 } 5641 5642 /* 5643 * We check the LBA and length, but don't do anything with them. 5644 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5645 * get flushed. This check will just help satisfy anyone who wants 5646 * to see an error for an out of range LBA. 5647 */ 5648 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5649 ctl_set_lba_out_of_range(ctsio); 5650 ctl_done((union ctl_io *)ctsio); 5651 goto bailout; 5652 } 5653 5654 /* 5655 * If this LUN has no backend, we can't flush the cache anyway. 5656 */ 5657 if (lun->backend == NULL) { 5658 ctl_set_invalid_opcode(ctsio); 5659 ctl_done((union ctl_io *)ctsio); 5660 goto bailout; 5661 } 5662 5663 /* 5664 * Check to see whether we're configured to send the SYNCHRONIZE 5665 * CACHE command directly to the back end. 5666 */ 5667 mtx_lock(&lun->lun_lock); 5668 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5669 && (++(lun->sync_count) >= lun->sync_interval)) { 5670 lun->sync_count = 0; 5671 mtx_unlock(&lun->lun_lock); 5672 retval = lun->backend->config_write((union ctl_io *)ctsio); 5673 } else { 5674 mtx_unlock(&lun->lun_lock); 5675 ctl_set_success(ctsio); 5676 ctl_done((union ctl_io *)ctsio); 5677 } 5678 5679 bailout: 5680 5681 return (retval); 5682 } 5683 5684 int 5685 ctl_format(struct ctl_scsiio *ctsio) 5686 { 5687 struct scsi_format *cdb; 5688 struct ctl_lun *lun; 5689 struct ctl_softc *ctl_softc; 5690 int length, defect_list_len; 5691 5692 CTL_DEBUG_PRINT(("ctl_format\n")); 5693 5694 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5695 ctl_softc = control_softc; 5696 5697 cdb = (struct scsi_format *)ctsio->cdb; 5698 5699 length = 0; 5700 if (cdb->byte2 & SF_FMTDATA) { 5701 if (cdb->byte2 & SF_LONGLIST) 5702 length = sizeof(struct scsi_format_header_long); 5703 else 5704 length = sizeof(struct scsi_format_header_short); 5705 } 5706 5707 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5708 && (length > 0)) { 5709 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5710 ctsio->kern_data_len = length; 5711 ctsio->kern_total_len = length; 5712 ctsio->kern_data_resid = 0; 5713 ctsio->kern_rel_offset = 0; 5714 ctsio->kern_sg_entries = 0; 5715 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5716 ctsio->be_move_done = ctl_config_move_done; 5717 ctl_datamove((union ctl_io *)ctsio); 5718 5719 return (CTL_RETVAL_COMPLETE); 5720 } 5721 5722 defect_list_len = 0; 5723 5724 if (cdb->byte2 & SF_FMTDATA) { 5725 if (cdb->byte2 & SF_LONGLIST) { 5726 struct scsi_format_header_long *header; 5727 5728 header = (struct scsi_format_header_long *) 5729 ctsio->kern_data_ptr; 5730 5731 defect_list_len = scsi_4btoul(header->defect_list_len); 5732 if (defect_list_len != 0) { 5733 ctl_set_invalid_field(ctsio, 5734 /*sks_valid*/ 1, 5735 /*command*/ 0, 5736 /*field*/ 2, 5737 /*bit_valid*/ 0, 5738 /*bit*/ 0); 5739 goto bailout; 5740 } 5741 } else { 5742 struct scsi_format_header_short *header; 5743 5744 header = (struct scsi_format_header_short *) 5745 ctsio->kern_data_ptr; 5746 5747 defect_list_len = scsi_2btoul(header->defect_list_len); 5748 if (defect_list_len != 0) { 5749 ctl_set_invalid_field(ctsio, 5750 /*sks_valid*/ 1, 5751 /*command*/ 0, 5752 /*field*/ 2, 5753 /*bit_valid*/ 0, 5754 /*bit*/ 0); 5755 goto bailout; 5756 } 5757 } 5758 } 5759 5760 /* 5761 * The format command will clear out the "Medium format corrupted" 5762 * status if set by the configuration code. That status is really 5763 * just a way to notify the host that we have lost the media, and 5764 * get them to issue a command that will basically make them think 5765 * they're blowing away the media. 5766 */ 5767 mtx_lock(&lun->lun_lock); 5768 lun->flags &= ~CTL_LUN_INOPERABLE; 5769 mtx_unlock(&lun->lun_lock); 5770 5771 ctsio->scsi_status = SCSI_STATUS_OK; 5772 ctsio->io_hdr.status = CTL_SUCCESS; 5773 bailout: 5774 5775 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5776 free(ctsio->kern_data_ptr, M_CTL); 5777 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5778 } 5779 5780 ctl_done((union ctl_io *)ctsio); 5781 return (CTL_RETVAL_COMPLETE); 5782 } 5783 5784 int 5785 ctl_read_buffer(struct ctl_scsiio *ctsio) 5786 { 5787 struct scsi_read_buffer *cdb; 5788 struct ctl_lun *lun; 5789 int buffer_offset, len; 5790 static uint8_t descr[4]; 5791 static uint8_t echo_descr[4] = { 0 }; 5792 5793 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5794 5795 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5796 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5797 5798 if (lun->flags & CTL_LUN_PR_RESERVED) { 5799 uint32_t residx; 5800 5801 /* 5802 * XXX KDM need a lock here. 5803 */ 5804 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5805 if ((lun->res_type == SPR_TYPE_EX_AC 5806 && residx != lun->pr_res_idx) 5807 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5808 || lun->res_type == SPR_TYPE_EX_AC_AR) 5809 && !lun->per_res[residx].registered)) { 5810 ctl_set_reservation_conflict(ctsio); 5811 ctl_done((union ctl_io *)ctsio); 5812 return (CTL_RETVAL_COMPLETE); 5813 } 5814 } 5815 5816 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5817 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5818 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5819 ctl_set_invalid_field(ctsio, 5820 /*sks_valid*/ 1, 5821 /*command*/ 1, 5822 /*field*/ 1, 5823 /*bit_valid*/ 1, 5824 /*bit*/ 4); 5825 ctl_done((union ctl_io *)ctsio); 5826 return (CTL_RETVAL_COMPLETE); 5827 } 5828 5829 len = scsi_3btoul(cdb->length); 5830 buffer_offset = scsi_3btoul(cdb->offset); 5831 5832 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5833 ctl_set_invalid_field(ctsio, 5834 /*sks_valid*/ 1, 5835 /*command*/ 1, 5836 /*field*/ 6, 5837 /*bit_valid*/ 0, 5838 /*bit*/ 0); 5839 ctl_done((union ctl_io *)ctsio); 5840 return (CTL_RETVAL_COMPLETE); 5841 } 5842 5843 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5844 descr[0] = 0; 5845 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5846 ctsio->kern_data_ptr = descr; 5847 len = min(len, sizeof(descr)); 5848 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5849 ctsio->kern_data_ptr = echo_descr; 5850 len = min(len, sizeof(echo_descr)); 5851 } else 5852 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5853 ctsio->kern_data_len = len; 5854 ctsio->kern_total_len = len; 5855 ctsio->kern_data_resid = 0; 5856 ctsio->kern_rel_offset = 0; 5857 ctsio->kern_sg_entries = 0; 5858 ctsio->be_move_done = ctl_config_move_done; 5859 ctl_datamove((union ctl_io *)ctsio); 5860 5861 return (CTL_RETVAL_COMPLETE); 5862 } 5863 5864 int 5865 ctl_write_buffer(struct ctl_scsiio *ctsio) 5866 { 5867 struct scsi_write_buffer *cdb; 5868 struct ctl_lun *lun; 5869 int buffer_offset, len; 5870 5871 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5872 5873 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5874 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5875 5876 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5877 ctl_set_invalid_field(ctsio, 5878 /*sks_valid*/ 1, 5879 /*command*/ 1, 5880 /*field*/ 1, 5881 /*bit_valid*/ 1, 5882 /*bit*/ 4); 5883 ctl_done((union ctl_io *)ctsio); 5884 return (CTL_RETVAL_COMPLETE); 5885 } 5886 5887 len = scsi_3btoul(cdb->length); 5888 buffer_offset = scsi_3btoul(cdb->offset); 5889 5890 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5891 ctl_set_invalid_field(ctsio, 5892 /*sks_valid*/ 1, 5893 /*command*/ 1, 5894 /*field*/ 6, 5895 /*bit_valid*/ 0, 5896 /*bit*/ 0); 5897 ctl_done((union ctl_io *)ctsio); 5898 return (CTL_RETVAL_COMPLETE); 5899 } 5900 5901 /* 5902 * If we've got a kernel request that hasn't been malloced yet, 5903 * malloc it and tell the caller the data buffer is here. 5904 */ 5905 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5906 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5907 ctsio->kern_data_len = len; 5908 ctsio->kern_total_len = len; 5909 ctsio->kern_data_resid = 0; 5910 ctsio->kern_rel_offset = 0; 5911 ctsio->kern_sg_entries = 0; 5912 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5913 ctsio->be_move_done = ctl_config_move_done; 5914 ctl_datamove((union ctl_io *)ctsio); 5915 5916 return (CTL_RETVAL_COMPLETE); 5917 } 5918 5919 ctl_done((union ctl_io *)ctsio); 5920 5921 return (CTL_RETVAL_COMPLETE); 5922 } 5923 5924 int 5925 ctl_write_same(struct ctl_scsiio *ctsio) 5926 { 5927 struct ctl_lun *lun; 5928 struct ctl_lba_len_flags *lbalen; 5929 uint64_t lba; 5930 uint32_t num_blocks; 5931 int len, retval; 5932 uint8_t byte2; 5933 5934 retval = CTL_RETVAL_COMPLETE; 5935 5936 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5937 5938 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5939 5940 switch (ctsio->cdb[0]) { 5941 case WRITE_SAME_10: { 5942 struct scsi_write_same_10 *cdb; 5943 5944 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5945 5946 lba = scsi_4btoul(cdb->addr); 5947 num_blocks = scsi_2btoul(cdb->length); 5948 byte2 = cdb->byte2; 5949 break; 5950 } 5951 case WRITE_SAME_16: { 5952 struct scsi_write_same_16 *cdb; 5953 5954 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5955 5956 lba = scsi_8btou64(cdb->addr); 5957 num_blocks = scsi_4btoul(cdb->length); 5958 byte2 = cdb->byte2; 5959 break; 5960 } 5961 default: 5962 /* 5963 * We got a command we don't support. This shouldn't 5964 * happen, commands should be filtered out above us. 5965 */ 5966 ctl_set_invalid_opcode(ctsio); 5967 ctl_done((union ctl_io *)ctsio); 5968 5969 return (CTL_RETVAL_COMPLETE); 5970 break; /* NOTREACHED */ 5971 } 5972 5973 /* 5974 * The first check is to make sure we're in bounds, the second 5975 * check is to catch wrap-around problems. If the lba + num blocks 5976 * is less than the lba, then we've wrapped around and the block 5977 * range is invalid anyway. 5978 */ 5979 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5980 || ((lba + num_blocks) < lba)) { 5981 ctl_set_lba_out_of_range(ctsio); 5982 ctl_done((union ctl_io *)ctsio); 5983 return (CTL_RETVAL_COMPLETE); 5984 } 5985 5986 /* Zero number of blocks means "to the last logical block" */ 5987 if (num_blocks == 0) { 5988 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5989 ctl_set_invalid_field(ctsio, 5990 /*sks_valid*/ 0, 5991 /*command*/ 1, 5992 /*field*/ 0, 5993 /*bit_valid*/ 0, 5994 /*bit*/ 0); 5995 ctl_done((union ctl_io *)ctsio); 5996 return (CTL_RETVAL_COMPLETE); 5997 } 5998 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5999 } 6000 6001 len = lun->be_lun->blocksize; 6002 6003 /* 6004 * If we've got a kernel request that hasn't been malloced yet, 6005 * malloc it and tell the caller the data buffer is here. 6006 */ 6007 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6008 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6009 ctsio->kern_data_len = len; 6010 ctsio->kern_total_len = len; 6011 ctsio->kern_data_resid = 0; 6012 ctsio->kern_rel_offset = 0; 6013 ctsio->kern_sg_entries = 0; 6014 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6015 ctsio->be_move_done = ctl_config_move_done; 6016 ctl_datamove((union ctl_io *)ctsio); 6017 6018 return (CTL_RETVAL_COMPLETE); 6019 } 6020 6021 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6022 lbalen->lba = lba; 6023 lbalen->len = num_blocks; 6024 lbalen->flags = byte2; 6025 retval = lun->backend->config_write((union ctl_io *)ctsio); 6026 6027 return (retval); 6028 } 6029 6030 int 6031 ctl_unmap(struct ctl_scsiio *ctsio) 6032 { 6033 struct ctl_lun *lun; 6034 struct scsi_unmap *cdb; 6035 struct ctl_ptr_len_flags *ptrlen; 6036 struct scsi_unmap_header *hdr; 6037 struct scsi_unmap_desc *buf, *end; 6038 uint64_t lba; 6039 uint32_t num_blocks; 6040 int len, retval; 6041 uint8_t byte2; 6042 6043 retval = CTL_RETVAL_COMPLETE; 6044 6045 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6046 6047 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6048 cdb = (struct scsi_unmap *)ctsio->cdb; 6049 6050 len = scsi_2btoul(cdb->length); 6051 byte2 = cdb->byte2; 6052 6053 /* 6054 * If we've got a kernel request that hasn't been malloced yet, 6055 * malloc it and tell the caller the data buffer is here. 6056 */ 6057 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6058 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6059 ctsio->kern_data_len = len; 6060 ctsio->kern_total_len = len; 6061 ctsio->kern_data_resid = 0; 6062 ctsio->kern_rel_offset = 0; 6063 ctsio->kern_sg_entries = 0; 6064 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6065 ctsio->be_move_done = ctl_config_move_done; 6066 ctl_datamove((union ctl_io *)ctsio); 6067 6068 return (CTL_RETVAL_COMPLETE); 6069 } 6070 6071 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6072 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6073 if (len < sizeof (*hdr) || 6074 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6075 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6076 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6077 ctl_set_invalid_field(ctsio, 6078 /*sks_valid*/ 0, 6079 /*command*/ 0, 6080 /*field*/ 0, 6081 /*bit_valid*/ 0, 6082 /*bit*/ 0); 6083 ctl_done((union ctl_io *)ctsio); 6084 return (CTL_RETVAL_COMPLETE); 6085 } 6086 len = scsi_2btoul(hdr->desc_length); 6087 buf = (struct scsi_unmap_desc *)(hdr + 1); 6088 end = buf + len / sizeof(*buf); 6089 6090 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6091 ptrlen->ptr = (void *)buf; 6092 ptrlen->len = len; 6093 ptrlen->flags = byte2; 6094 6095 for (; buf < end; buf++) { 6096 lba = scsi_8btou64(buf->lba); 6097 num_blocks = scsi_4btoul(buf->length); 6098 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6099 || ((lba + num_blocks) < lba)) { 6100 ctl_set_lba_out_of_range(ctsio); 6101 ctl_done((union ctl_io *)ctsio); 6102 return (CTL_RETVAL_COMPLETE); 6103 } 6104 } 6105 6106 retval = lun->backend->config_write((union ctl_io *)ctsio); 6107 6108 return (retval); 6109 } 6110 6111 /* 6112 * Note that this function currently doesn't actually do anything inside 6113 * CTL to enforce things if the DQue bit is turned on. 6114 * 6115 * Also note that this function can't be used in the default case, because 6116 * the DQue bit isn't set in the changeable mask for the control mode page 6117 * anyway. This is just here as an example for how to implement a page 6118 * handler, and a placeholder in case we want to allow the user to turn 6119 * tagged queueing on and off. 6120 * 6121 * The D_SENSE bit handling is functional, however, and will turn 6122 * descriptor sense on and off for a given LUN. 6123 */ 6124 int 6125 ctl_control_page_handler(struct ctl_scsiio *ctsio, 6126 struct ctl_page_index *page_index, uint8_t *page_ptr) 6127 { 6128 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6129 struct ctl_lun *lun; 6130 struct ctl_softc *softc; 6131 int set_ua; 6132 uint32_t initidx; 6133 6134 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6135 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6136 set_ua = 0; 6137 6138 user_cp = (struct scsi_control_page *)page_ptr; 6139 current_cp = (struct scsi_control_page *) 6140 (page_index->page_data + (page_index->page_len * 6141 CTL_PAGE_CURRENT)); 6142 saved_cp = (struct scsi_control_page *) 6143 (page_index->page_data + (page_index->page_len * 6144 CTL_PAGE_SAVED)); 6145 6146 softc = control_softc; 6147 6148 mtx_lock(&lun->lun_lock); 6149 if (((current_cp->rlec & SCP_DSENSE) == 0) 6150 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6151 /* 6152 * Descriptor sense is currently turned off and the user 6153 * wants to turn it on. 6154 */ 6155 current_cp->rlec |= SCP_DSENSE; 6156 saved_cp->rlec |= SCP_DSENSE; 6157 lun->flags |= CTL_LUN_SENSE_DESC; 6158 set_ua = 1; 6159 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6160 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6161 /* 6162 * Descriptor sense is currently turned on, and the user 6163 * wants to turn it off. 6164 */ 6165 current_cp->rlec &= ~SCP_DSENSE; 6166 saved_cp->rlec &= ~SCP_DSENSE; 6167 lun->flags &= ~CTL_LUN_SENSE_DESC; 6168 set_ua = 1; 6169 } 6170 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6171 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6172 #ifdef NEEDTOPORT 6173 csevent_log(CSC_CTL | CSC_SHELF_SW | 6174 CTL_UNTAG_TO_UNTAG, 6175 csevent_LogType_Trace, 6176 csevent_Severity_Information, 6177 csevent_AlertLevel_Green, 6178 csevent_FRU_Firmware, 6179 csevent_FRU_Unknown, 6180 "Received untagged to untagged transition"); 6181 #endif /* NEEDTOPORT */ 6182 } else { 6183 #ifdef NEEDTOPORT 6184 csevent_log(CSC_CTL | CSC_SHELF_SW | 6185 CTL_UNTAG_TO_TAG, 6186 csevent_LogType_ConfigChange, 6187 csevent_Severity_Information, 6188 csevent_AlertLevel_Green, 6189 csevent_FRU_Firmware, 6190 csevent_FRU_Unknown, 6191 "Received untagged to tagged " 6192 "queueing transition"); 6193 #endif /* NEEDTOPORT */ 6194 6195 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6196 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6197 set_ua = 1; 6198 } 6199 } else { 6200 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6201 #ifdef NEEDTOPORT 6202 csevent_log(CSC_CTL | CSC_SHELF_SW | 6203 CTL_TAG_TO_UNTAG, 6204 csevent_LogType_ConfigChange, 6205 csevent_Severity_Warning, 6206 csevent_AlertLevel_Yellow, 6207 csevent_FRU_Firmware, 6208 csevent_FRU_Unknown, 6209 "Received tagged queueing to untagged " 6210 "transition"); 6211 #endif /* NEEDTOPORT */ 6212 6213 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6214 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6215 set_ua = 1; 6216 } else { 6217 #ifdef NEEDTOPORT 6218 csevent_log(CSC_CTL | CSC_SHELF_SW | 6219 CTL_TAG_TO_TAG, 6220 csevent_LogType_Trace, 6221 csevent_Severity_Information, 6222 csevent_AlertLevel_Green, 6223 csevent_FRU_Firmware, 6224 csevent_FRU_Unknown, 6225 "Received tagged queueing to tagged " 6226 "queueing transition"); 6227 #endif /* NEEDTOPORT */ 6228 } 6229 } 6230 if (set_ua != 0) { 6231 int i; 6232 /* 6233 * Let other initiators know that the mode 6234 * parameters for this LUN have changed. 6235 */ 6236 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6237 if (i == initidx) 6238 continue; 6239 6240 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6241 } 6242 } 6243 mtx_unlock(&lun->lun_lock); 6244 6245 return (0); 6246 } 6247 6248 int 6249 ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6250 struct ctl_page_index *page_index, uint8_t *page_ptr) 6251 { 6252 return (0); 6253 } 6254 6255 int 6256 ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6257 struct ctl_page_index *page_index, int pc) 6258 { 6259 struct copan_power_subpage *page; 6260 6261 page = (struct copan_power_subpage *)page_index->page_data + 6262 (page_index->page_len * pc); 6263 6264 switch (pc) { 6265 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6266 /* 6267 * We don't update the changable bits for this page. 6268 */ 6269 break; 6270 case SMS_PAGE_CTRL_CURRENT >> 6: 6271 case SMS_PAGE_CTRL_DEFAULT >> 6: 6272 case SMS_PAGE_CTRL_SAVED >> 6: 6273 #ifdef NEEDTOPORT 6274 ctl_update_power_subpage(page); 6275 #endif 6276 break; 6277 default: 6278 #ifdef NEEDTOPORT 6279 EPRINT(0, "Invalid PC %d!!", pc); 6280 #endif 6281 break; 6282 } 6283 return (0); 6284 } 6285 6286 6287 int 6288 ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6289 struct ctl_page_index *page_index, uint8_t *page_ptr) 6290 { 6291 struct copan_aps_subpage *user_sp; 6292 struct copan_aps_subpage *current_sp; 6293 union ctl_modepage_info *modepage_info; 6294 struct ctl_softc *softc; 6295 struct ctl_lun *lun; 6296 int retval; 6297 6298 retval = CTL_RETVAL_COMPLETE; 6299 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6300 (page_index->page_len * CTL_PAGE_CURRENT)); 6301 softc = control_softc; 6302 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6303 6304 user_sp = (struct copan_aps_subpage *)page_ptr; 6305 6306 modepage_info = (union ctl_modepage_info *) 6307 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6308 6309 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6310 modepage_info->header.subpage = page_index->subpage; 6311 modepage_info->aps.lock_active = user_sp->lock_active; 6312 6313 mtx_lock(&softc->ctl_lock); 6314 6315 /* 6316 * If there is a request to lock the LUN and another LUN is locked 6317 * this is an error. If the requested LUN is already locked ignore 6318 * the request. If no LUN is locked attempt to lock it. 6319 * if there is a request to unlock the LUN and the LUN is currently 6320 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6321 * if another LUN is locked or no LUN is locked. 6322 */ 6323 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6324 if (softc->aps_locked_lun == lun->lun) { 6325 /* 6326 * This LUN is already locked, so we're done. 6327 */ 6328 retval = CTL_RETVAL_COMPLETE; 6329 } else if (softc->aps_locked_lun == 0) { 6330 /* 6331 * No one has the lock, pass the request to the 6332 * backend. 6333 */ 6334 retval = lun->backend->config_write( 6335 (union ctl_io *)ctsio); 6336 } else { 6337 /* 6338 * Someone else has the lock, throw out the request. 6339 */ 6340 ctl_set_already_locked(ctsio); 6341 free(ctsio->kern_data_ptr, M_CTL); 6342 ctl_done((union ctl_io *)ctsio); 6343 6344 /* 6345 * Set the return value so that ctl_do_mode_select() 6346 * won't try to complete the command. We already 6347 * completed it here. 6348 */ 6349 retval = CTL_RETVAL_ERROR; 6350 } 6351 } else if (softc->aps_locked_lun == lun->lun) { 6352 /* 6353 * This LUN is locked, so pass the unlock request to the 6354 * backend. 6355 */ 6356 retval = lun->backend->config_write((union ctl_io *)ctsio); 6357 } 6358 mtx_unlock(&softc->ctl_lock); 6359 6360 return (retval); 6361 } 6362 6363 int 6364 ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6365 struct ctl_page_index *page_index, 6366 uint8_t *page_ptr) 6367 { 6368 uint8_t *c; 6369 int i; 6370 6371 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6372 ctl_time_io_secs = 6373 (c[0] << 8) | 6374 (c[1] << 0) | 6375 0; 6376 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6377 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6378 printf("page data:"); 6379 for (i=0; i<8; i++) 6380 printf(" %.2x",page_ptr[i]); 6381 printf("\n"); 6382 return (0); 6383 } 6384 6385 int 6386 ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6387 struct ctl_page_index *page_index, 6388 int pc) 6389 { 6390 struct copan_debugconf_subpage *page; 6391 6392 page = (struct copan_debugconf_subpage *)page_index->page_data + 6393 (page_index->page_len * pc); 6394 6395 switch (pc) { 6396 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6397 case SMS_PAGE_CTRL_DEFAULT >> 6: 6398 case SMS_PAGE_CTRL_SAVED >> 6: 6399 /* 6400 * We don't update the changable or default bits for this page. 6401 */ 6402 break; 6403 case SMS_PAGE_CTRL_CURRENT >> 6: 6404 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6405 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6406 break; 6407 default: 6408 #ifdef NEEDTOPORT 6409 EPRINT(0, "Invalid PC %d!!", pc); 6410 #endif /* NEEDTOPORT */ 6411 break; 6412 } 6413 return (0); 6414 } 6415 6416 6417 static int 6418 ctl_do_mode_select(union ctl_io *io) 6419 { 6420 struct scsi_mode_page_header *page_header; 6421 struct ctl_page_index *page_index; 6422 struct ctl_scsiio *ctsio; 6423 int control_dev, page_len; 6424 int page_len_offset, page_len_size; 6425 union ctl_modepage_info *modepage_info; 6426 struct ctl_lun *lun; 6427 int *len_left, *len_used; 6428 int retval, i; 6429 6430 ctsio = &io->scsiio; 6431 page_index = NULL; 6432 page_len = 0; 6433 retval = CTL_RETVAL_COMPLETE; 6434 6435 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6436 6437 if (lun->be_lun->lun_type != T_DIRECT) 6438 control_dev = 1; 6439 else 6440 control_dev = 0; 6441 6442 modepage_info = (union ctl_modepage_info *) 6443 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6444 len_left = &modepage_info->header.len_left; 6445 len_used = &modepage_info->header.len_used; 6446 6447 do_next_page: 6448 6449 page_header = (struct scsi_mode_page_header *) 6450 (ctsio->kern_data_ptr + *len_used); 6451 6452 if (*len_left == 0) { 6453 free(ctsio->kern_data_ptr, M_CTL); 6454 ctl_set_success(ctsio); 6455 ctl_done((union ctl_io *)ctsio); 6456 return (CTL_RETVAL_COMPLETE); 6457 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6458 6459 free(ctsio->kern_data_ptr, M_CTL); 6460 ctl_set_param_len_error(ctsio); 6461 ctl_done((union ctl_io *)ctsio); 6462 return (CTL_RETVAL_COMPLETE); 6463 6464 } else if ((page_header->page_code & SMPH_SPF) 6465 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6466 6467 free(ctsio->kern_data_ptr, M_CTL); 6468 ctl_set_param_len_error(ctsio); 6469 ctl_done((union ctl_io *)ctsio); 6470 return (CTL_RETVAL_COMPLETE); 6471 } 6472 6473 6474 /* 6475 * XXX KDM should we do something with the block descriptor? 6476 */ 6477 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6478 6479 if ((control_dev != 0) 6480 && (lun->mode_pages.index[i].page_flags & 6481 CTL_PAGE_FLAG_DISK_ONLY)) 6482 continue; 6483 6484 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6485 (page_header->page_code & SMPH_PC_MASK)) 6486 continue; 6487 6488 /* 6489 * If neither page has a subpage code, then we've got a 6490 * match. 6491 */ 6492 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6493 && ((page_header->page_code & SMPH_SPF) == 0)) { 6494 page_index = &lun->mode_pages.index[i]; 6495 page_len = page_header->page_length; 6496 break; 6497 } 6498 6499 /* 6500 * If both pages have subpages, then the subpage numbers 6501 * have to match. 6502 */ 6503 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6504 && (page_header->page_code & SMPH_SPF)) { 6505 struct scsi_mode_page_header_sp *sph; 6506 6507 sph = (struct scsi_mode_page_header_sp *)page_header; 6508 6509 if (lun->mode_pages.index[i].subpage == 6510 sph->subpage) { 6511 page_index = &lun->mode_pages.index[i]; 6512 page_len = scsi_2btoul(sph->page_length); 6513 break; 6514 } 6515 } 6516 } 6517 6518 /* 6519 * If we couldn't find the page, or if we don't have a mode select 6520 * handler for it, send back an error to the user. 6521 */ 6522 if ((page_index == NULL) 6523 || (page_index->select_handler == NULL)) { 6524 ctl_set_invalid_field(ctsio, 6525 /*sks_valid*/ 1, 6526 /*command*/ 0, 6527 /*field*/ *len_used, 6528 /*bit_valid*/ 0, 6529 /*bit*/ 0); 6530 free(ctsio->kern_data_ptr, M_CTL); 6531 ctl_done((union ctl_io *)ctsio); 6532 return (CTL_RETVAL_COMPLETE); 6533 } 6534 6535 if (page_index->page_code & SMPH_SPF) { 6536 page_len_offset = 2; 6537 page_len_size = 2; 6538 } else { 6539 page_len_size = 1; 6540 page_len_offset = 1; 6541 } 6542 6543 /* 6544 * If the length the initiator gives us isn't the one we specify in 6545 * the mode page header, or if they didn't specify enough data in 6546 * the CDB to avoid truncating this page, kick out the request. 6547 */ 6548 if ((page_len != (page_index->page_len - page_len_offset - 6549 page_len_size)) 6550 || (*len_left < page_index->page_len)) { 6551 6552 6553 ctl_set_invalid_field(ctsio, 6554 /*sks_valid*/ 1, 6555 /*command*/ 0, 6556 /*field*/ *len_used + page_len_offset, 6557 /*bit_valid*/ 0, 6558 /*bit*/ 0); 6559 free(ctsio->kern_data_ptr, M_CTL); 6560 ctl_done((union ctl_io *)ctsio); 6561 return (CTL_RETVAL_COMPLETE); 6562 } 6563 6564 /* 6565 * Run through the mode page, checking to make sure that the bits 6566 * the user changed are actually legal for him to change. 6567 */ 6568 for (i = 0; i < page_index->page_len; i++) { 6569 uint8_t *user_byte, *change_mask, *current_byte; 6570 int bad_bit; 6571 int j; 6572 6573 user_byte = (uint8_t *)page_header + i; 6574 change_mask = page_index->page_data + 6575 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6576 current_byte = page_index->page_data + 6577 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6578 6579 /* 6580 * Check to see whether the user set any bits in this byte 6581 * that he is not allowed to set. 6582 */ 6583 if ((*user_byte & ~(*change_mask)) == 6584 (*current_byte & ~(*change_mask))) 6585 continue; 6586 6587 /* 6588 * Go through bit by bit to determine which one is illegal. 6589 */ 6590 bad_bit = 0; 6591 for (j = 7; j >= 0; j--) { 6592 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6593 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6594 bad_bit = i; 6595 break; 6596 } 6597 } 6598 ctl_set_invalid_field(ctsio, 6599 /*sks_valid*/ 1, 6600 /*command*/ 0, 6601 /*field*/ *len_used + i, 6602 /*bit_valid*/ 1, 6603 /*bit*/ bad_bit); 6604 free(ctsio->kern_data_ptr, M_CTL); 6605 ctl_done((union ctl_io *)ctsio); 6606 return (CTL_RETVAL_COMPLETE); 6607 } 6608 6609 /* 6610 * Decrement these before we call the page handler, since we may 6611 * end up getting called back one way or another before the handler 6612 * returns to this context. 6613 */ 6614 *len_left -= page_index->page_len; 6615 *len_used += page_index->page_len; 6616 6617 retval = page_index->select_handler(ctsio, page_index, 6618 (uint8_t *)page_header); 6619 6620 /* 6621 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6622 * wait until this queued command completes to finish processing 6623 * the mode page. If it returns anything other than 6624 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6625 * already set the sense information, freed the data pointer, and 6626 * completed the io for us. 6627 */ 6628 if (retval != CTL_RETVAL_COMPLETE) 6629 goto bailout_no_done; 6630 6631 /* 6632 * If the initiator sent us more than one page, parse the next one. 6633 */ 6634 if (*len_left > 0) 6635 goto do_next_page; 6636 6637 ctl_set_success(ctsio); 6638 free(ctsio->kern_data_ptr, M_CTL); 6639 ctl_done((union ctl_io *)ctsio); 6640 6641 bailout_no_done: 6642 6643 return (CTL_RETVAL_COMPLETE); 6644 6645 } 6646 6647 int 6648 ctl_mode_select(struct ctl_scsiio *ctsio) 6649 { 6650 int param_len, pf, sp; 6651 int header_size, bd_len; 6652 int len_left, len_used; 6653 struct ctl_page_index *page_index; 6654 struct ctl_lun *lun; 6655 int control_dev, page_len; 6656 union ctl_modepage_info *modepage_info; 6657 int retval; 6658 6659 pf = 0; 6660 sp = 0; 6661 page_len = 0; 6662 len_used = 0; 6663 len_left = 0; 6664 retval = 0; 6665 bd_len = 0; 6666 page_index = NULL; 6667 6668 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6669 6670 if (lun->be_lun->lun_type != T_DIRECT) 6671 control_dev = 1; 6672 else 6673 control_dev = 0; 6674 6675 switch (ctsio->cdb[0]) { 6676 case MODE_SELECT_6: { 6677 struct scsi_mode_select_6 *cdb; 6678 6679 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6680 6681 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6682 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6683 6684 param_len = cdb->length; 6685 header_size = sizeof(struct scsi_mode_header_6); 6686 break; 6687 } 6688 case MODE_SELECT_10: { 6689 struct scsi_mode_select_10 *cdb; 6690 6691 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6692 6693 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6694 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6695 6696 param_len = scsi_2btoul(cdb->length); 6697 header_size = sizeof(struct scsi_mode_header_10); 6698 break; 6699 } 6700 default: 6701 ctl_set_invalid_opcode(ctsio); 6702 ctl_done((union ctl_io *)ctsio); 6703 return (CTL_RETVAL_COMPLETE); 6704 break; /* NOTREACHED */ 6705 } 6706 6707 /* 6708 * From SPC-3: 6709 * "A parameter list length of zero indicates that the Data-Out Buffer 6710 * shall be empty. This condition shall not be considered as an error." 6711 */ 6712 if (param_len == 0) { 6713 ctl_set_success(ctsio); 6714 ctl_done((union ctl_io *)ctsio); 6715 return (CTL_RETVAL_COMPLETE); 6716 } 6717 6718 /* 6719 * Since we'll hit this the first time through, prior to 6720 * allocation, we don't need to free a data buffer here. 6721 */ 6722 if (param_len < header_size) { 6723 ctl_set_param_len_error(ctsio); 6724 ctl_done((union ctl_io *)ctsio); 6725 return (CTL_RETVAL_COMPLETE); 6726 } 6727 6728 /* 6729 * Allocate the data buffer and grab the user's data. In theory, 6730 * we shouldn't have to sanity check the parameter list length here 6731 * because the maximum size is 64K. We should be able to malloc 6732 * that much without too many problems. 6733 */ 6734 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6735 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6736 ctsio->kern_data_len = param_len; 6737 ctsio->kern_total_len = param_len; 6738 ctsio->kern_data_resid = 0; 6739 ctsio->kern_rel_offset = 0; 6740 ctsio->kern_sg_entries = 0; 6741 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6742 ctsio->be_move_done = ctl_config_move_done; 6743 ctl_datamove((union ctl_io *)ctsio); 6744 6745 return (CTL_RETVAL_COMPLETE); 6746 } 6747 6748 switch (ctsio->cdb[0]) { 6749 case MODE_SELECT_6: { 6750 struct scsi_mode_header_6 *mh6; 6751 6752 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6753 bd_len = mh6->blk_desc_len; 6754 break; 6755 } 6756 case MODE_SELECT_10: { 6757 struct scsi_mode_header_10 *mh10; 6758 6759 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6760 bd_len = scsi_2btoul(mh10->blk_desc_len); 6761 break; 6762 } 6763 default: 6764 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6765 break; 6766 } 6767 6768 if (param_len < (header_size + bd_len)) { 6769 free(ctsio->kern_data_ptr, M_CTL); 6770 ctl_set_param_len_error(ctsio); 6771 ctl_done((union ctl_io *)ctsio); 6772 return (CTL_RETVAL_COMPLETE); 6773 } 6774 6775 /* 6776 * Set the IO_CONT flag, so that if this I/O gets passed to 6777 * ctl_config_write_done(), it'll get passed back to 6778 * ctl_do_mode_select() for further processing, or completion if 6779 * we're all done. 6780 */ 6781 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6782 ctsio->io_cont = ctl_do_mode_select; 6783 6784 modepage_info = (union ctl_modepage_info *) 6785 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6786 6787 memset(modepage_info, 0, sizeof(*modepage_info)); 6788 6789 len_left = param_len - header_size - bd_len; 6790 len_used = header_size + bd_len; 6791 6792 modepage_info->header.len_left = len_left; 6793 modepage_info->header.len_used = len_used; 6794 6795 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6796 } 6797 6798 int 6799 ctl_mode_sense(struct ctl_scsiio *ctsio) 6800 { 6801 struct ctl_lun *lun; 6802 int pc, page_code, dbd, llba, subpage; 6803 int alloc_len, page_len, header_len, total_len; 6804 struct scsi_mode_block_descr *block_desc; 6805 struct ctl_page_index *page_index; 6806 int control_dev; 6807 6808 dbd = 0; 6809 llba = 0; 6810 block_desc = NULL; 6811 page_index = NULL; 6812 6813 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6814 6815 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6816 6817 if (lun->be_lun->lun_type != T_DIRECT) 6818 control_dev = 1; 6819 else 6820 control_dev = 0; 6821 6822 if (lun->flags & CTL_LUN_PR_RESERVED) { 6823 uint32_t residx; 6824 6825 /* 6826 * XXX KDM need a lock here. 6827 */ 6828 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6829 if ((lun->res_type == SPR_TYPE_EX_AC 6830 && residx != lun->pr_res_idx) 6831 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6832 || lun->res_type == SPR_TYPE_EX_AC_AR) 6833 && !lun->per_res[residx].registered)) { 6834 ctl_set_reservation_conflict(ctsio); 6835 ctl_done((union ctl_io *)ctsio); 6836 return (CTL_RETVAL_COMPLETE); 6837 } 6838 } 6839 6840 switch (ctsio->cdb[0]) { 6841 case MODE_SENSE_6: { 6842 struct scsi_mode_sense_6 *cdb; 6843 6844 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6845 6846 header_len = sizeof(struct scsi_mode_hdr_6); 6847 if (cdb->byte2 & SMS_DBD) 6848 dbd = 1; 6849 else 6850 header_len += sizeof(struct scsi_mode_block_descr); 6851 6852 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6853 page_code = cdb->page & SMS_PAGE_CODE; 6854 subpage = cdb->subpage; 6855 alloc_len = cdb->length; 6856 break; 6857 } 6858 case MODE_SENSE_10: { 6859 struct scsi_mode_sense_10 *cdb; 6860 6861 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6862 6863 header_len = sizeof(struct scsi_mode_hdr_10); 6864 6865 if (cdb->byte2 & SMS_DBD) 6866 dbd = 1; 6867 else 6868 header_len += sizeof(struct scsi_mode_block_descr); 6869 if (cdb->byte2 & SMS10_LLBAA) 6870 llba = 1; 6871 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6872 page_code = cdb->page & SMS_PAGE_CODE; 6873 subpage = cdb->subpage; 6874 alloc_len = scsi_2btoul(cdb->length); 6875 break; 6876 } 6877 default: 6878 ctl_set_invalid_opcode(ctsio); 6879 ctl_done((union ctl_io *)ctsio); 6880 return (CTL_RETVAL_COMPLETE); 6881 break; /* NOTREACHED */ 6882 } 6883 6884 /* 6885 * We have to make a first pass through to calculate the size of 6886 * the pages that match the user's query. Then we allocate enough 6887 * memory to hold it, and actually copy the data into the buffer. 6888 */ 6889 switch (page_code) { 6890 case SMS_ALL_PAGES_PAGE: { 6891 int i; 6892 6893 page_len = 0; 6894 6895 /* 6896 * At the moment, values other than 0 and 0xff here are 6897 * reserved according to SPC-3. 6898 */ 6899 if ((subpage != SMS_SUBPAGE_PAGE_0) 6900 && (subpage != SMS_SUBPAGE_ALL)) { 6901 ctl_set_invalid_field(ctsio, 6902 /*sks_valid*/ 1, 6903 /*command*/ 1, 6904 /*field*/ 3, 6905 /*bit_valid*/ 0, 6906 /*bit*/ 0); 6907 ctl_done((union ctl_io *)ctsio); 6908 return (CTL_RETVAL_COMPLETE); 6909 } 6910 6911 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6912 if ((control_dev != 0) 6913 && (lun->mode_pages.index[i].page_flags & 6914 CTL_PAGE_FLAG_DISK_ONLY)) 6915 continue; 6916 6917 /* 6918 * We don't use this subpage if the user didn't 6919 * request all subpages. 6920 */ 6921 if ((lun->mode_pages.index[i].subpage != 0) 6922 && (subpage == SMS_SUBPAGE_PAGE_0)) 6923 continue; 6924 6925 #if 0 6926 printf("found page %#x len %d\n", 6927 lun->mode_pages.index[i].page_code & 6928 SMPH_PC_MASK, 6929 lun->mode_pages.index[i].page_len); 6930 #endif 6931 page_len += lun->mode_pages.index[i].page_len; 6932 } 6933 break; 6934 } 6935 default: { 6936 int i; 6937 6938 page_len = 0; 6939 6940 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6941 /* Look for the right page code */ 6942 if ((lun->mode_pages.index[i].page_code & 6943 SMPH_PC_MASK) != page_code) 6944 continue; 6945 6946 /* Look for the right subpage or the subpage wildcard*/ 6947 if ((lun->mode_pages.index[i].subpage != subpage) 6948 && (subpage != SMS_SUBPAGE_ALL)) 6949 continue; 6950 6951 /* Make sure the page is supported for this dev type */ 6952 if ((control_dev != 0) 6953 && (lun->mode_pages.index[i].page_flags & 6954 CTL_PAGE_FLAG_DISK_ONLY)) 6955 continue; 6956 6957 #if 0 6958 printf("found page %#x len %d\n", 6959 lun->mode_pages.index[i].page_code & 6960 SMPH_PC_MASK, 6961 lun->mode_pages.index[i].page_len); 6962 #endif 6963 6964 page_len += lun->mode_pages.index[i].page_len; 6965 } 6966 6967 if (page_len == 0) { 6968 ctl_set_invalid_field(ctsio, 6969 /*sks_valid*/ 1, 6970 /*command*/ 1, 6971 /*field*/ 2, 6972 /*bit_valid*/ 1, 6973 /*bit*/ 5); 6974 ctl_done((union ctl_io *)ctsio); 6975 return (CTL_RETVAL_COMPLETE); 6976 } 6977 break; 6978 } 6979 } 6980 6981 total_len = header_len + page_len; 6982 #if 0 6983 printf("header_len = %d, page_len = %d, total_len = %d\n", 6984 header_len, page_len, total_len); 6985 #endif 6986 6987 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6988 ctsio->kern_sg_entries = 0; 6989 ctsio->kern_data_resid = 0; 6990 ctsio->kern_rel_offset = 0; 6991 if (total_len < alloc_len) { 6992 ctsio->residual = alloc_len - total_len; 6993 ctsio->kern_data_len = total_len; 6994 ctsio->kern_total_len = total_len; 6995 } else { 6996 ctsio->residual = 0; 6997 ctsio->kern_data_len = alloc_len; 6998 ctsio->kern_total_len = alloc_len; 6999 } 7000 7001 switch (ctsio->cdb[0]) { 7002 case MODE_SENSE_6: { 7003 struct scsi_mode_hdr_6 *header; 7004 7005 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7006 7007 header->datalen = ctl_min(total_len - 1, 254); 7008 7009 if (dbd) 7010 header->block_descr_len = 0; 7011 else 7012 header->block_descr_len = 7013 sizeof(struct scsi_mode_block_descr); 7014 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7015 break; 7016 } 7017 case MODE_SENSE_10: { 7018 struct scsi_mode_hdr_10 *header; 7019 int datalen; 7020 7021 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7022 7023 datalen = ctl_min(total_len - 2, 65533); 7024 scsi_ulto2b(datalen, header->datalen); 7025 if (dbd) 7026 scsi_ulto2b(0, header->block_descr_len); 7027 else 7028 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7029 header->block_descr_len); 7030 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7031 break; 7032 } 7033 default: 7034 panic("invalid CDB type %#x", ctsio->cdb[0]); 7035 break; /* NOTREACHED */ 7036 } 7037 7038 /* 7039 * If we've got a disk, use its blocksize in the block 7040 * descriptor. Otherwise, just set it to 0. 7041 */ 7042 if (dbd == 0) { 7043 if (control_dev != 0) 7044 scsi_ulto3b(lun->be_lun->blocksize, 7045 block_desc->block_len); 7046 else 7047 scsi_ulto3b(0, block_desc->block_len); 7048 } 7049 7050 switch (page_code) { 7051 case SMS_ALL_PAGES_PAGE: { 7052 int i, data_used; 7053 7054 data_used = header_len; 7055 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7056 struct ctl_page_index *page_index; 7057 7058 page_index = &lun->mode_pages.index[i]; 7059 7060 if ((control_dev != 0) 7061 && (page_index->page_flags & 7062 CTL_PAGE_FLAG_DISK_ONLY)) 7063 continue; 7064 7065 /* 7066 * We don't use this subpage if the user didn't 7067 * request all subpages. We already checked (above) 7068 * to make sure the user only specified a subpage 7069 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7070 */ 7071 if ((page_index->subpage != 0) 7072 && (subpage == SMS_SUBPAGE_PAGE_0)) 7073 continue; 7074 7075 /* 7076 * Call the handler, if it exists, to update the 7077 * page to the latest values. 7078 */ 7079 if (page_index->sense_handler != NULL) 7080 page_index->sense_handler(ctsio, page_index,pc); 7081 7082 memcpy(ctsio->kern_data_ptr + data_used, 7083 page_index->page_data + 7084 (page_index->page_len * pc), 7085 page_index->page_len); 7086 data_used += page_index->page_len; 7087 } 7088 break; 7089 } 7090 default: { 7091 int i, data_used; 7092 7093 data_used = header_len; 7094 7095 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7096 struct ctl_page_index *page_index; 7097 7098 page_index = &lun->mode_pages.index[i]; 7099 7100 /* Look for the right page code */ 7101 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7102 continue; 7103 7104 /* Look for the right subpage or the subpage wildcard*/ 7105 if ((page_index->subpage != subpage) 7106 && (subpage != SMS_SUBPAGE_ALL)) 7107 continue; 7108 7109 /* Make sure the page is supported for this dev type */ 7110 if ((control_dev != 0) 7111 && (page_index->page_flags & 7112 CTL_PAGE_FLAG_DISK_ONLY)) 7113 continue; 7114 7115 /* 7116 * Call the handler, if it exists, to update the 7117 * page to the latest values. 7118 */ 7119 if (page_index->sense_handler != NULL) 7120 page_index->sense_handler(ctsio, page_index,pc); 7121 7122 memcpy(ctsio->kern_data_ptr + data_used, 7123 page_index->page_data + 7124 (page_index->page_len * pc), 7125 page_index->page_len); 7126 data_used += page_index->page_len; 7127 } 7128 break; 7129 } 7130 } 7131 7132 ctsio->scsi_status = SCSI_STATUS_OK; 7133 7134 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7135 ctsio->be_move_done = ctl_config_move_done; 7136 ctl_datamove((union ctl_io *)ctsio); 7137 7138 return (CTL_RETVAL_COMPLETE); 7139 } 7140 7141 int 7142 ctl_read_capacity(struct ctl_scsiio *ctsio) 7143 { 7144 struct scsi_read_capacity *cdb; 7145 struct scsi_read_capacity_data *data; 7146 struct ctl_lun *lun; 7147 uint32_t lba; 7148 7149 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7150 7151 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7152 7153 lba = scsi_4btoul(cdb->addr); 7154 if (((cdb->pmi & SRC_PMI) == 0) 7155 && (lba != 0)) { 7156 ctl_set_invalid_field(/*ctsio*/ ctsio, 7157 /*sks_valid*/ 1, 7158 /*command*/ 1, 7159 /*field*/ 2, 7160 /*bit_valid*/ 0, 7161 /*bit*/ 0); 7162 ctl_done((union ctl_io *)ctsio); 7163 return (CTL_RETVAL_COMPLETE); 7164 } 7165 7166 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7167 7168 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7169 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7170 ctsio->residual = 0; 7171 ctsio->kern_data_len = sizeof(*data); 7172 ctsio->kern_total_len = sizeof(*data); 7173 ctsio->kern_data_resid = 0; 7174 ctsio->kern_rel_offset = 0; 7175 ctsio->kern_sg_entries = 0; 7176 7177 /* 7178 * If the maximum LBA is greater than 0xfffffffe, the user must 7179 * issue a SERVICE ACTION IN (16) command, with the read capacity 7180 * serivce action set. 7181 */ 7182 if (lun->be_lun->maxlba > 0xfffffffe) 7183 scsi_ulto4b(0xffffffff, data->addr); 7184 else 7185 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7186 7187 /* 7188 * XXX KDM this may not be 512 bytes... 7189 */ 7190 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7191 7192 ctsio->scsi_status = SCSI_STATUS_OK; 7193 7194 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7195 ctsio->be_move_done = ctl_config_move_done; 7196 ctl_datamove((union ctl_io *)ctsio); 7197 7198 return (CTL_RETVAL_COMPLETE); 7199 } 7200 7201 int 7202 ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7203 { 7204 struct scsi_read_capacity_16 *cdb; 7205 struct scsi_read_capacity_data_long *data; 7206 struct ctl_lun *lun; 7207 uint64_t lba; 7208 uint32_t alloc_len; 7209 7210 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7211 7212 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7213 7214 alloc_len = scsi_4btoul(cdb->alloc_len); 7215 lba = scsi_8btou64(cdb->addr); 7216 7217 if ((cdb->reladr & SRC16_PMI) 7218 && (lba != 0)) { 7219 ctl_set_invalid_field(/*ctsio*/ ctsio, 7220 /*sks_valid*/ 1, 7221 /*command*/ 1, 7222 /*field*/ 2, 7223 /*bit_valid*/ 0, 7224 /*bit*/ 0); 7225 ctl_done((union ctl_io *)ctsio); 7226 return (CTL_RETVAL_COMPLETE); 7227 } 7228 7229 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7230 7231 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7232 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7233 7234 if (sizeof(*data) < alloc_len) { 7235 ctsio->residual = alloc_len - sizeof(*data); 7236 ctsio->kern_data_len = sizeof(*data); 7237 ctsio->kern_total_len = sizeof(*data); 7238 } else { 7239 ctsio->residual = 0; 7240 ctsio->kern_data_len = alloc_len; 7241 ctsio->kern_total_len = alloc_len; 7242 } 7243 ctsio->kern_data_resid = 0; 7244 ctsio->kern_rel_offset = 0; 7245 ctsio->kern_sg_entries = 0; 7246 7247 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7248 /* XXX KDM this may not be 512 bytes... */ 7249 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7250 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7251 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7252 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7253 data->lalba_lbp[0] |= SRC16_LBPME; 7254 7255 ctsio->scsi_status = SCSI_STATUS_OK; 7256 7257 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7258 ctsio->be_move_done = ctl_config_move_done; 7259 ctl_datamove((union ctl_io *)ctsio); 7260 7261 return (CTL_RETVAL_COMPLETE); 7262 } 7263 7264 int 7265 ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7266 { 7267 struct scsi_maintenance_in *cdb; 7268 int retval; 7269 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7270 int num_target_port_groups, num_target_ports, single; 7271 struct ctl_lun *lun; 7272 struct ctl_softc *softc; 7273 struct ctl_port *port; 7274 struct scsi_target_group_data *rtg_ptr; 7275 struct scsi_target_group_data_extended *rtg_ext_ptr; 7276 struct scsi_target_port_group_descriptor *tpg_desc; 7277 7278 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7279 7280 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7281 softc = control_softc; 7282 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7283 7284 retval = CTL_RETVAL_COMPLETE; 7285 7286 switch (cdb->byte2 & STG_PDF_MASK) { 7287 case STG_PDF_LENGTH: 7288 ext = 0; 7289 break; 7290 case STG_PDF_EXTENDED: 7291 ext = 1; 7292 break; 7293 default: 7294 ctl_set_invalid_field(/*ctsio*/ ctsio, 7295 /*sks_valid*/ 1, 7296 /*command*/ 1, 7297 /*field*/ 2, 7298 /*bit_valid*/ 1, 7299 /*bit*/ 5); 7300 ctl_done((union ctl_io *)ctsio); 7301 return(retval); 7302 } 7303 7304 single = ctl_is_single; 7305 if (single) 7306 num_target_port_groups = 1; 7307 else 7308 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7309 num_target_ports = 0; 7310 mtx_lock(&softc->ctl_lock); 7311 STAILQ_FOREACH(port, &softc->port_list, links) { 7312 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7313 continue; 7314 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7315 continue; 7316 num_target_ports++; 7317 } 7318 mtx_unlock(&softc->ctl_lock); 7319 7320 if (ext) 7321 total_len = sizeof(struct scsi_target_group_data_extended); 7322 else 7323 total_len = sizeof(struct scsi_target_group_data); 7324 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7325 num_target_port_groups + 7326 sizeof(struct scsi_target_port_descriptor) * 7327 num_target_ports * num_target_port_groups; 7328 7329 alloc_len = scsi_4btoul(cdb->length); 7330 7331 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7332 7333 ctsio->kern_sg_entries = 0; 7334 7335 if (total_len < alloc_len) { 7336 ctsio->residual = alloc_len - total_len; 7337 ctsio->kern_data_len = total_len; 7338 ctsio->kern_total_len = total_len; 7339 } else { 7340 ctsio->residual = 0; 7341 ctsio->kern_data_len = alloc_len; 7342 ctsio->kern_total_len = alloc_len; 7343 } 7344 ctsio->kern_data_resid = 0; 7345 ctsio->kern_rel_offset = 0; 7346 7347 if (ext) { 7348 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7349 ctsio->kern_data_ptr; 7350 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7351 rtg_ext_ptr->format_type = 0x10; 7352 rtg_ext_ptr->implicit_transition_time = 0; 7353 tpg_desc = &rtg_ext_ptr->groups[0]; 7354 } else { 7355 rtg_ptr = (struct scsi_target_group_data *) 7356 ctsio->kern_data_ptr; 7357 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7358 tpg_desc = &rtg_ptr->groups[0]; 7359 } 7360 7361 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7362 mtx_lock(&softc->ctl_lock); 7363 for (g = 0; g < num_target_port_groups; g++) { 7364 if (g == pg) 7365 tpg_desc->pref_state = TPG_PRIMARY | 7366 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7367 else 7368 tpg_desc->pref_state = 7369 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7370 tpg_desc->support = TPG_AO_SUP; 7371 if (!single) 7372 tpg_desc->support |= TPG_AN_SUP; 7373 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7374 tpg_desc->status = TPG_IMPLICIT; 7375 pc = 0; 7376 STAILQ_FOREACH(port, &softc->port_list, links) { 7377 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7378 continue; 7379 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7380 CTL_MAX_LUNS) 7381 continue; 7382 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7383 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7384 relative_target_port_identifier); 7385 pc++; 7386 } 7387 tpg_desc->target_port_count = pc; 7388 tpg_desc = (struct scsi_target_port_group_descriptor *) 7389 &tpg_desc->descriptors[pc]; 7390 } 7391 mtx_unlock(&softc->ctl_lock); 7392 7393 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7394 ctsio->be_move_done = ctl_config_move_done; 7395 7396 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7397 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7398 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7399 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7400 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7401 7402 ctl_datamove((union ctl_io *)ctsio); 7403 return(retval); 7404 } 7405 7406 int 7407 ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7408 { 7409 struct ctl_lun *lun; 7410 struct scsi_report_supported_opcodes *cdb; 7411 const struct ctl_cmd_entry *entry, *sentry; 7412 struct scsi_report_supported_opcodes_all *all; 7413 struct scsi_report_supported_opcodes_descr *descr; 7414 struct scsi_report_supported_opcodes_one *one; 7415 int retval; 7416 int alloc_len, total_len; 7417 int opcode, service_action, i, j, num; 7418 7419 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7420 7421 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7422 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7423 7424 retval = CTL_RETVAL_COMPLETE; 7425 7426 opcode = cdb->requested_opcode; 7427 service_action = scsi_2btoul(cdb->requested_service_action); 7428 switch (cdb->options & RSO_OPTIONS_MASK) { 7429 case RSO_OPTIONS_ALL: 7430 num = 0; 7431 for (i = 0; i < 256; i++) { 7432 entry = &ctl_cmd_table[i]; 7433 if (entry->flags & CTL_CMD_FLAG_SA5) { 7434 for (j = 0; j < 32; j++) { 7435 sentry = &((const struct ctl_cmd_entry *) 7436 entry->execute)[j]; 7437 if (ctl_cmd_applicable( 7438 lun->be_lun->lun_type, sentry)) 7439 num++; 7440 } 7441 } else { 7442 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7443 entry)) 7444 num++; 7445 } 7446 } 7447 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7448 num * sizeof(struct scsi_report_supported_opcodes_descr); 7449 break; 7450 case RSO_OPTIONS_OC: 7451 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7452 ctl_set_invalid_field(/*ctsio*/ ctsio, 7453 /*sks_valid*/ 1, 7454 /*command*/ 1, 7455 /*field*/ 2, 7456 /*bit_valid*/ 1, 7457 /*bit*/ 2); 7458 ctl_done((union ctl_io *)ctsio); 7459 return (CTL_RETVAL_COMPLETE); 7460 } 7461 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7462 break; 7463 case RSO_OPTIONS_OC_SA: 7464 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7465 service_action >= 32) { 7466 ctl_set_invalid_field(/*ctsio*/ ctsio, 7467 /*sks_valid*/ 1, 7468 /*command*/ 1, 7469 /*field*/ 2, 7470 /*bit_valid*/ 1, 7471 /*bit*/ 2); 7472 ctl_done((union ctl_io *)ctsio); 7473 return (CTL_RETVAL_COMPLETE); 7474 } 7475 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7476 break; 7477 default: 7478 ctl_set_invalid_field(/*ctsio*/ ctsio, 7479 /*sks_valid*/ 1, 7480 /*command*/ 1, 7481 /*field*/ 2, 7482 /*bit_valid*/ 1, 7483 /*bit*/ 2); 7484 ctl_done((union ctl_io *)ctsio); 7485 return (CTL_RETVAL_COMPLETE); 7486 } 7487 7488 alloc_len = scsi_4btoul(cdb->length); 7489 7490 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7491 7492 ctsio->kern_sg_entries = 0; 7493 7494 if (total_len < alloc_len) { 7495 ctsio->residual = alloc_len - total_len; 7496 ctsio->kern_data_len = total_len; 7497 ctsio->kern_total_len = total_len; 7498 } else { 7499 ctsio->residual = 0; 7500 ctsio->kern_data_len = alloc_len; 7501 ctsio->kern_total_len = alloc_len; 7502 } 7503 ctsio->kern_data_resid = 0; 7504 ctsio->kern_rel_offset = 0; 7505 7506 switch (cdb->options & RSO_OPTIONS_MASK) { 7507 case RSO_OPTIONS_ALL: 7508 all = (struct scsi_report_supported_opcodes_all *) 7509 ctsio->kern_data_ptr; 7510 num = 0; 7511 for (i = 0; i < 256; i++) { 7512 entry = &ctl_cmd_table[i]; 7513 if (entry->flags & CTL_CMD_FLAG_SA5) { 7514 for (j = 0; j < 32; j++) { 7515 sentry = &((const struct ctl_cmd_entry *) 7516 entry->execute)[j]; 7517 if (!ctl_cmd_applicable( 7518 lun->be_lun->lun_type, sentry)) 7519 continue; 7520 descr = &all->descr[num++]; 7521 descr->opcode = i; 7522 scsi_ulto2b(j, descr->service_action); 7523 descr->flags = RSO_SERVACTV; 7524 scsi_ulto2b(sentry->length, 7525 descr->cdb_length); 7526 } 7527 } else { 7528 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7529 entry)) 7530 continue; 7531 descr = &all->descr[num++]; 7532 descr->opcode = i; 7533 scsi_ulto2b(0, descr->service_action); 7534 descr->flags = 0; 7535 scsi_ulto2b(entry->length, descr->cdb_length); 7536 } 7537 } 7538 scsi_ulto4b( 7539 num * sizeof(struct scsi_report_supported_opcodes_descr), 7540 all->length); 7541 break; 7542 case RSO_OPTIONS_OC: 7543 one = (struct scsi_report_supported_opcodes_one *) 7544 ctsio->kern_data_ptr; 7545 entry = &ctl_cmd_table[opcode]; 7546 goto fill_one; 7547 case RSO_OPTIONS_OC_SA: 7548 one = (struct scsi_report_supported_opcodes_one *) 7549 ctsio->kern_data_ptr; 7550 entry = &ctl_cmd_table[opcode]; 7551 entry = &((const struct ctl_cmd_entry *) 7552 entry->execute)[service_action]; 7553 fill_one: 7554 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7555 one->support = 3; 7556 scsi_ulto2b(entry->length, one->cdb_length); 7557 one->cdb_usage[0] = opcode; 7558 memcpy(&one->cdb_usage[1], entry->usage, 7559 entry->length - 1); 7560 } else 7561 one->support = 1; 7562 break; 7563 } 7564 7565 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7566 ctsio->be_move_done = ctl_config_move_done; 7567 7568 ctl_datamove((union ctl_io *)ctsio); 7569 return(retval); 7570 } 7571 7572 int 7573 ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7574 { 7575 struct ctl_lun *lun; 7576 struct scsi_report_supported_tmf *cdb; 7577 struct scsi_report_supported_tmf_data *data; 7578 int retval; 7579 int alloc_len, total_len; 7580 7581 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7582 7583 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7584 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7585 7586 retval = CTL_RETVAL_COMPLETE; 7587 7588 total_len = sizeof(struct scsi_report_supported_tmf_data); 7589 alloc_len = scsi_4btoul(cdb->length); 7590 7591 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7592 7593 ctsio->kern_sg_entries = 0; 7594 7595 if (total_len < alloc_len) { 7596 ctsio->residual = alloc_len - total_len; 7597 ctsio->kern_data_len = total_len; 7598 ctsio->kern_total_len = total_len; 7599 } else { 7600 ctsio->residual = 0; 7601 ctsio->kern_data_len = alloc_len; 7602 ctsio->kern_total_len = alloc_len; 7603 } 7604 ctsio->kern_data_resid = 0; 7605 ctsio->kern_rel_offset = 0; 7606 7607 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7608 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7609 data->byte2 |= RST_ITNRS; 7610 7611 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7612 ctsio->be_move_done = ctl_config_move_done; 7613 7614 ctl_datamove((union ctl_io *)ctsio); 7615 return (retval); 7616 } 7617 7618 int 7619 ctl_report_timestamp(struct ctl_scsiio *ctsio) 7620 { 7621 struct ctl_lun *lun; 7622 struct scsi_report_timestamp *cdb; 7623 struct scsi_report_timestamp_data *data; 7624 struct timeval tv; 7625 int64_t timestamp; 7626 int retval; 7627 int alloc_len, total_len; 7628 7629 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7630 7631 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7632 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7633 7634 retval = CTL_RETVAL_COMPLETE; 7635 7636 total_len = sizeof(struct scsi_report_timestamp_data); 7637 alloc_len = scsi_4btoul(cdb->length); 7638 7639 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7640 7641 ctsio->kern_sg_entries = 0; 7642 7643 if (total_len < alloc_len) { 7644 ctsio->residual = alloc_len - total_len; 7645 ctsio->kern_data_len = total_len; 7646 ctsio->kern_total_len = total_len; 7647 } else { 7648 ctsio->residual = 0; 7649 ctsio->kern_data_len = alloc_len; 7650 ctsio->kern_total_len = alloc_len; 7651 } 7652 ctsio->kern_data_resid = 0; 7653 ctsio->kern_rel_offset = 0; 7654 7655 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7656 scsi_ulto2b(sizeof(*data) - 2, data->length); 7657 data->origin = RTS_ORIG_OUTSIDE; 7658 getmicrotime(&tv); 7659 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7660 scsi_ulto4b(timestamp >> 16, data->timestamp); 7661 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7662 7663 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7664 ctsio->be_move_done = ctl_config_move_done; 7665 7666 ctl_datamove((union ctl_io *)ctsio); 7667 return (retval); 7668 } 7669 7670 int 7671 ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7672 { 7673 struct scsi_per_res_in *cdb; 7674 int alloc_len, total_len = 0; 7675 /* struct scsi_per_res_in_rsrv in_data; */ 7676 struct ctl_lun *lun; 7677 struct ctl_softc *softc; 7678 7679 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7680 7681 softc = control_softc; 7682 7683 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7684 7685 alloc_len = scsi_2btoul(cdb->length); 7686 7687 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7688 7689 retry: 7690 mtx_lock(&lun->lun_lock); 7691 switch (cdb->action) { 7692 case SPRI_RK: /* read keys */ 7693 total_len = sizeof(struct scsi_per_res_in_keys) + 7694 lun->pr_key_count * 7695 sizeof(struct scsi_per_res_key); 7696 break; 7697 case SPRI_RR: /* read reservation */ 7698 if (lun->flags & CTL_LUN_PR_RESERVED) 7699 total_len = sizeof(struct scsi_per_res_in_rsrv); 7700 else 7701 total_len = sizeof(struct scsi_per_res_in_header); 7702 break; 7703 case SPRI_RC: /* report capabilities */ 7704 total_len = sizeof(struct scsi_per_res_cap); 7705 break; 7706 case SPRI_RS: /* read full status */ 7707 total_len = sizeof(struct scsi_per_res_in_header) + 7708 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7709 lun->pr_key_count; 7710 break; 7711 default: 7712 panic("Invalid PR type %x", cdb->action); 7713 } 7714 mtx_unlock(&lun->lun_lock); 7715 7716 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7717 7718 if (total_len < alloc_len) { 7719 ctsio->residual = alloc_len - total_len; 7720 ctsio->kern_data_len = total_len; 7721 ctsio->kern_total_len = total_len; 7722 } else { 7723 ctsio->residual = 0; 7724 ctsio->kern_data_len = alloc_len; 7725 ctsio->kern_total_len = alloc_len; 7726 } 7727 7728 ctsio->kern_data_resid = 0; 7729 ctsio->kern_rel_offset = 0; 7730 ctsio->kern_sg_entries = 0; 7731 7732 mtx_lock(&lun->lun_lock); 7733 switch (cdb->action) { 7734 case SPRI_RK: { // read keys 7735 struct scsi_per_res_in_keys *res_keys; 7736 int i, key_count; 7737 7738 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7739 7740 /* 7741 * We had to drop the lock to allocate our buffer, which 7742 * leaves time for someone to come in with another 7743 * persistent reservation. (That is unlikely, though, 7744 * since this should be the only persistent reservation 7745 * command active right now.) 7746 */ 7747 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7748 (lun->pr_key_count * 7749 sizeof(struct scsi_per_res_key)))){ 7750 mtx_unlock(&lun->lun_lock); 7751 free(ctsio->kern_data_ptr, M_CTL); 7752 printf("%s: reservation length changed, retrying\n", 7753 __func__); 7754 goto retry; 7755 } 7756 7757 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7758 7759 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7760 lun->pr_key_count, res_keys->header.length); 7761 7762 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7763 if (!lun->per_res[i].registered) 7764 continue; 7765 7766 /* 7767 * We used lun->pr_key_count to calculate the 7768 * size to allocate. If it turns out the number of 7769 * initiators with the registered flag set is 7770 * larger than that (i.e. they haven't been kept in 7771 * sync), we've got a problem. 7772 */ 7773 if (key_count >= lun->pr_key_count) { 7774 #ifdef NEEDTOPORT 7775 csevent_log(CSC_CTL | CSC_SHELF_SW | 7776 CTL_PR_ERROR, 7777 csevent_LogType_Fault, 7778 csevent_AlertLevel_Yellow, 7779 csevent_FRU_ShelfController, 7780 csevent_FRU_Firmware, 7781 csevent_FRU_Unknown, 7782 "registered keys %d >= key " 7783 "count %d", key_count, 7784 lun->pr_key_count); 7785 #endif 7786 key_count++; 7787 continue; 7788 } 7789 memcpy(res_keys->keys[key_count].key, 7790 lun->per_res[i].res_key.key, 7791 ctl_min(sizeof(res_keys->keys[key_count].key), 7792 sizeof(lun->per_res[i].res_key))); 7793 key_count++; 7794 } 7795 break; 7796 } 7797 case SPRI_RR: { // read reservation 7798 struct scsi_per_res_in_rsrv *res; 7799 int tmp_len, header_only; 7800 7801 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7802 7803 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7804 7805 if (lun->flags & CTL_LUN_PR_RESERVED) 7806 { 7807 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7808 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7809 res->header.length); 7810 header_only = 0; 7811 } else { 7812 tmp_len = sizeof(struct scsi_per_res_in_header); 7813 scsi_ulto4b(0, res->header.length); 7814 header_only = 1; 7815 } 7816 7817 /* 7818 * We had to drop the lock to allocate our buffer, which 7819 * leaves time for someone to come in with another 7820 * persistent reservation. (That is unlikely, though, 7821 * since this should be the only persistent reservation 7822 * command active right now.) 7823 */ 7824 if (tmp_len != total_len) { 7825 mtx_unlock(&lun->lun_lock); 7826 free(ctsio->kern_data_ptr, M_CTL); 7827 printf("%s: reservation status changed, retrying\n", 7828 __func__); 7829 goto retry; 7830 } 7831 7832 /* 7833 * No reservation held, so we're done. 7834 */ 7835 if (header_only != 0) 7836 break; 7837 7838 /* 7839 * If the registration is an All Registrants type, the key 7840 * is 0, since it doesn't really matter. 7841 */ 7842 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7843 memcpy(res->data.reservation, 7844 &lun->per_res[lun->pr_res_idx].res_key, 7845 sizeof(struct scsi_per_res_key)); 7846 } 7847 res->data.scopetype = lun->res_type; 7848 break; 7849 } 7850 case SPRI_RC: //report capabilities 7851 { 7852 struct scsi_per_res_cap *res_cap; 7853 uint16_t type_mask; 7854 7855 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7856 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7857 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7858 type_mask = SPRI_TM_WR_EX_AR | 7859 SPRI_TM_EX_AC_RO | 7860 SPRI_TM_WR_EX_RO | 7861 SPRI_TM_EX_AC | 7862 SPRI_TM_WR_EX | 7863 SPRI_TM_EX_AC_AR; 7864 scsi_ulto2b(type_mask, res_cap->type_mask); 7865 break; 7866 } 7867 case SPRI_RS: { // read full status 7868 struct scsi_per_res_in_full *res_status; 7869 struct scsi_per_res_in_full_desc *res_desc; 7870 struct ctl_port *port; 7871 int i, len; 7872 7873 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7874 7875 /* 7876 * We had to drop the lock to allocate our buffer, which 7877 * leaves time for someone to come in with another 7878 * persistent reservation. (That is unlikely, though, 7879 * since this should be the only persistent reservation 7880 * command active right now.) 7881 */ 7882 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7883 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7884 lun->pr_key_count)){ 7885 mtx_unlock(&lun->lun_lock); 7886 free(ctsio->kern_data_ptr, M_CTL); 7887 printf("%s: reservation length changed, retrying\n", 7888 __func__); 7889 goto retry; 7890 } 7891 7892 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7893 7894 res_desc = &res_status->desc[0]; 7895 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7896 if (!lun->per_res[i].registered) 7897 continue; 7898 7899 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7900 sizeof(res_desc->res_key)); 7901 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7902 (lun->pr_res_idx == i || 7903 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7904 res_desc->flags = SPRI_FULL_R_HOLDER; 7905 res_desc->scopetype = lun->res_type; 7906 } 7907 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7908 res_desc->rel_trgt_port_id); 7909 len = 0; 7910 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7911 if (port != NULL) 7912 len = ctl_create_iid(port, 7913 i % CTL_MAX_INIT_PER_PORT, 7914 res_desc->transport_id); 7915 scsi_ulto4b(len, res_desc->additional_length); 7916 res_desc = (struct scsi_per_res_in_full_desc *) 7917 &res_desc->transport_id[len]; 7918 } 7919 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7920 res_status->header.length); 7921 break; 7922 } 7923 default: 7924 /* 7925 * This is a bug, because we just checked for this above, 7926 * and should have returned an error. 7927 */ 7928 panic("Invalid PR type %x", cdb->action); 7929 break; /* NOTREACHED */ 7930 } 7931 mtx_unlock(&lun->lun_lock); 7932 7933 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7934 ctsio->be_move_done = ctl_config_move_done; 7935 7936 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7937 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7938 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7939 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7940 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7941 7942 ctl_datamove((union ctl_io *)ctsio); 7943 7944 return (CTL_RETVAL_COMPLETE); 7945 } 7946 7947 /* 7948 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7949 * it should return. 7950 */ 7951 static int 7952 ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7953 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7954 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7955 struct scsi_per_res_out_parms* param) 7956 { 7957 union ctl_ha_msg persis_io; 7958 int retval, i; 7959 int isc_retval; 7960 7961 retval = 0; 7962 7963 mtx_lock(&lun->lun_lock); 7964 if (sa_res_key == 0) { 7965 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7966 /* validate scope and type */ 7967 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7968 SPR_LU_SCOPE) { 7969 mtx_unlock(&lun->lun_lock); 7970 ctl_set_invalid_field(/*ctsio*/ ctsio, 7971 /*sks_valid*/ 1, 7972 /*command*/ 1, 7973 /*field*/ 2, 7974 /*bit_valid*/ 1, 7975 /*bit*/ 4); 7976 ctl_done((union ctl_io *)ctsio); 7977 return (1); 7978 } 7979 7980 if (type>8 || type==2 || type==4 || type==0) { 7981 mtx_unlock(&lun->lun_lock); 7982 ctl_set_invalid_field(/*ctsio*/ ctsio, 7983 /*sks_valid*/ 1, 7984 /*command*/ 1, 7985 /*field*/ 2, 7986 /*bit_valid*/ 1, 7987 /*bit*/ 0); 7988 ctl_done((union ctl_io *)ctsio); 7989 return (1); 7990 } 7991 7992 /* temporarily unregister this nexus */ 7993 lun->per_res[residx].registered = 0; 7994 7995 /* 7996 * Unregister everybody else and build UA for 7997 * them 7998 */ 7999 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8000 if (lun->per_res[i].registered == 0) 8001 continue; 8002 8003 if (!persis_offset 8004 && i <CTL_MAX_INITIATORS) 8005 lun->pending_ua[i] |= 8006 CTL_UA_REG_PREEMPT; 8007 else if (persis_offset 8008 && i >= persis_offset) 8009 lun->pending_ua[i-persis_offset] |= 8010 CTL_UA_REG_PREEMPT; 8011 lun->per_res[i].registered = 0; 8012 memset(&lun->per_res[i].res_key, 0, 8013 sizeof(struct scsi_per_res_key)); 8014 } 8015 lun->per_res[residx].registered = 1; 8016 lun->pr_key_count = 1; 8017 lun->res_type = type; 8018 if (lun->res_type != SPR_TYPE_WR_EX_AR 8019 && lun->res_type != SPR_TYPE_EX_AC_AR) 8020 lun->pr_res_idx = residx; 8021 8022 /* send msg to other side */ 8023 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8024 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8025 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8026 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8027 persis_io.pr.pr_info.res_type = type; 8028 memcpy(persis_io.pr.pr_info.sa_res_key, 8029 param->serv_act_res_key, 8030 sizeof(param->serv_act_res_key)); 8031 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8032 &persis_io, sizeof(persis_io), 0)) > 8033 CTL_HA_STATUS_SUCCESS) { 8034 printf("CTL:Persis Out error returned " 8035 "from ctl_ha_msg_send %d\n", 8036 isc_retval); 8037 } 8038 } else { 8039 /* not all registrants */ 8040 mtx_unlock(&lun->lun_lock); 8041 free(ctsio->kern_data_ptr, M_CTL); 8042 ctl_set_invalid_field(ctsio, 8043 /*sks_valid*/ 1, 8044 /*command*/ 0, 8045 /*field*/ 8, 8046 /*bit_valid*/ 0, 8047 /*bit*/ 0); 8048 ctl_done((union ctl_io *)ctsio); 8049 return (1); 8050 } 8051 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8052 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8053 int found = 0; 8054 8055 if (res_key == sa_res_key) { 8056 /* special case */ 8057 /* 8058 * The spec implies this is not good but doesn't 8059 * say what to do. There are two choices either 8060 * generate a res conflict or check condition 8061 * with illegal field in parameter data. Since 8062 * that is what is done when the sa_res_key is 8063 * zero I'll take that approach since this has 8064 * to do with the sa_res_key. 8065 */ 8066 mtx_unlock(&lun->lun_lock); 8067 free(ctsio->kern_data_ptr, M_CTL); 8068 ctl_set_invalid_field(ctsio, 8069 /*sks_valid*/ 1, 8070 /*command*/ 0, 8071 /*field*/ 8, 8072 /*bit_valid*/ 0, 8073 /*bit*/ 0); 8074 ctl_done((union ctl_io *)ctsio); 8075 return (1); 8076 } 8077 8078 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8079 if (lun->per_res[i].registered 8080 && memcmp(param->serv_act_res_key, 8081 lun->per_res[i].res_key.key, 8082 sizeof(struct scsi_per_res_key)) != 0) 8083 continue; 8084 8085 found = 1; 8086 lun->per_res[i].registered = 0; 8087 memset(&lun->per_res[i].res_key, 0, 8088 sizeof(struct scsi_per_res_key)); 8089 lun->pr_key_count--; 8090 8091 if (!persis_offset && i < CTL_MAX_INITIATORS) 8092 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8093 else if (persis_offset && i >= persis_offset) 8094 lun->pending_ua[i-persis_offset] |= 8095 CTL_UA_REG_PREEMPT; 8096 } 8097 if (!found) { 8098 mtx_unlock(&lun->lun_lock); 8099 free(ctsio->kern_data_ptr, M_CTL); 8100 ctl_set_reservation_conflict(ctsio); 8101 ctl_done((union ctl_io *)ctsio); 8102 return (CTL_RETVAL_COMPLETE); 8103 } 8104 /* send msg to other side */ 8105 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8106 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8107 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8108 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8109 persis_io.pr.pr_info.res_type = type; 8110 memcpy(persis_io.pr.pr_info.sa_res_key, 8111 param->serv_act_res_key, 8112 sizeof(param->serv_act_res_key)); 8113 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8114 &persis_io, sizeof(persis_io), 0)) > 8115 CTL_HA_STATUS_SUCCESS) { 8116 printf("CTL:Persis Out error returned from " 8117 "ctl_ha_msg_send %d\n", isc_retval); 8118 } 8119 } else { 8120 /* Reserved but not all registrants */ 8121 /* sa_res_key is res holder */ 8122 if (memcmp(param->serv_act_res_key, 8123 lun->per_res[lun->pr_res_idx].res_key.key, 8124 sizeof(struct scsi_per_res_key)) == 0) { 8125 /* validate scope and type */ 8126 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8127 SPR_LU_SCOPE) { 8128 mtx_unlock(&lun->lun_lock); 8129 ctl_set_invalid_field(/*ctsio*/ ctsio, 8130 /*sks_valid*/ 1, 8131 /*command*/ 1, 8132 /*field*/ 2, 8133 /*bit_valid*/ 1, 8134 /*bit*/ 4); 8135 ctl_done((union ctl_io *)ctsio); 8136 return (1); 8137 } 8138 8139 if (type>8 || type==2 || type==4 || type==0) { 8140 mtx_unlock(&lun->lun_lock); 8141 ctl_set_invalid_field(/*ctsio*/ ctsio, 8142 /*sks_valid*/ 1, 8143 /*command*/ 1, 8144 /*field*/ 2, 8145 /*bit_valid*/ 1, 8146 /*bit*/ 0); 8147 ctl_done((union ctl_io *)ctsio); 8148 return (1); 8149 } 8150 8151 /* 8152 * Do the following: 8153 * if sa_res_key != res_key remove all 8154 * registrants w/sa_res_key and generate UA 8155 * for these registrants(Registrations 8156 * Preempted) if it wasn't an exclusive 8157 * reservation generate UA(Reservations 8158 * Preempted) for all other registered nexuses 8159 * if the type has changed. Establish the new 8160 * reservation and holder. If res_key and 8161 * sa_res_key are the same do the above 8162 * except don't unregister the res holder. 8163 */ 8164 8165 /* 8166 * Temporarily unregister so it won't get 8167 * removed or UA generated 8168 */ 8169 lun->per_res[residx].registered = 0; 8170 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8171 if (lun->per_res[i].registered == 0) 8172 continue; 8173 8174 if (memcmp(param->serv_act_res_key, 8175 lun->per_res[i].res_key.key, 8176 sizeof(struct scsi_per_res_key)) == 0) { 8177 lun->per_res[i].registered = 0; 8178 memset(&lun->per_res[i].res_key, 8179 0, 8180 sizeof(struct scsi_per_res_key)); 8181 lun->pr_key_count--; 8182 8183 if (!persis_offset 8184 && i < CTL_MAX_INITIATORS) 8185 lun->pending_ua[i] |= 8186 CTL_UA_REG_PREEMPT; 8187 else if (persis_offset 8188 && i >= persis_offset) 8189 lun->pending_ua[i-persis_offset] |= 8190 CTL_UA_REG_PREEMPT; 8191 } else if (type != lun->res_type 8192 && (lun->res_type == SPR_TYPE_WR_EX_RO 8193 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8194 if (!persis_offset 8195 && i < CTL_MAX_INITIATORS) 8196 lun->pending_ua[i] |= 8197 CTL_UA_RES_RELEASE; 8198 else if (persis_offset 8199 && i >= persis_offset) 8200 lun->pending_ua[ 8201 i-persis_offset] |= 8202 CTL_UA_RES_RELEASE; 8203 } 8204 } 8205 lun->per_res[residx].registered = 1; 8206 lun->res_type = type; 8207 if (lun->res_type != SPR_TYPE_WR_EX_AR 8208 && lun->res_type != SPR_TYPE_EX_AC_AR) 8209 lun->pr_res_idx = residx; 8210 else 8211 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8212 8213 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8214 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8215 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8216 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8217 persis_io.pr.pr_info.res_type = type; 8218 memcpy(persis_io.pr.pr_info.sa_res_key, 8219 param->serv_act_res_key, 8220 sizeof(param->serv_act_res_key)); 8221 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8222 &persis_io, sizeof(persis_io), 0)) > 8223 CTL_HA_STATUS_SUCCESS) { 8224 printf("CTL:Persis Out error returned " 8225 "from ctl_ha_msg_send %d\n", 8226 isc_retval); 8227 } 8228 } else { 8229 /* 8230 * sa_res_key is not the res holder just 8231 * remove registrants 8232 */ 8233 int found=0; 8234 8235 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8236 if (memcmp(param->serv_act_res_key, 8237 lun->per_res[i].res_key.key, 8238 sizeof(struct scsi_per_res_key)) != 0) 8239 continue; 8240 8241 found = 1; 8242 lun->per_res[i].registered = 0; 8243 memset(&lun->per_res[i].res_key, 0, 8244 sizeof(struct scsi_per_res_key)); 8245 lun->pr_key_count--; 8246 8247 if (!persis_offset 8248 && i < CTL_MAX_INITIATORS) 8249 lun->pending_ua[i] |= 8250 CTL_UA_REG_PREEMPT; 8251 else if (persis_offset 8252 && i >= persis_offset) 8253 lun->pending_ua[i-persis_offset] |= 8254 CTL_UA_REG_PREEMPT; 8255 } 8256 8257 if (!found) { 8258 mtx_unlock(&lun->lun_lock); 8259 free(ctsio->kern_data_ptr, M_CTL); 8260 ctl_set_reservation_conflict(ctsio); 8261 ctl_done((union ctl_io *)ctsio); 8262 return (1); 8263 } 8264 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8265 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8266 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8267 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8268 persis_io.pr.pr_info.res_type = type; 8269 memcpy(persis_io.pr.pr_info.sa_res_key, 8270 param->serv_act_res_key, 8271 sizeof(param->serv_act_res_key)); 8272 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8273 &persis_io, sizeof(persis_io), 0)) > 8274 CTL_HA_STATUS_SUCCESS) { 8275 printf("CTL:Persis Out error returned " 8276 "from ctl_ha_msg_send %d\n", 8277 isc_retval); 8278 } 8279 } 8280 } 8281 8282 lun->PRGeneration++; 8283 mtx_unlock(&lun->lun_lock); 8284 8285 return (retval); 8286 } 8287 8288 static void 8289 ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8290 { 8291 int i; 8292 8293 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8294 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8295 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8296 msg->pr.pr_info.sa_res_key, 8297 sizeof(struct scsi_per_res_key)) != 0) { 8298 uint64_t sa_res_key; 8299 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8300 8301 if (sa_res_key == 0) { 8302 /* temporarily unregister this nexus */ 8303 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8304 8305 /* 8306 * Unregister everybody else and build UA for 8307 * them 8308 */ 8309 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8310 if (lun->per_res[i].registered == 0) 8311 continue; 8312 8313 if (!persis_offset 8314 && i < CTL_MAX_INITIATORS) 8315 lun->pending_ua[i] |= 8316 CTL_UA_REG_PREEMPT; 8317 else if (persis_offset && i >= persis_offset) 8318 lun->pending_ua[i - persis_offset] |= 8319 CTL_UA_REG_PREEMPT; 8320 lun->per_res[i].registered = 0; 8321 memset(&lun->per_res[i].res_key, 0, 8322 sizeof(struct scsi_per_res_key)); 8323 } 8324 8325 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8326 lun->pr_key_count = 1; 8327 lun->res_type = msg->pr.pr_info.res_type; 8328 if (lun->res_type != SPR_TYPE_WR_EX_AR 8329 && lun->res_type != SPR_TYPE_EX_AC_AR) 8330 lun->pr_res_idx = msg->pr.pr_info.residx; 8331 } else { 8332 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8333 if (memcmp(msg->pr.pr_info.sa_res_key, 8334 lun->per_res[i].res_key.key, 8335 sizeof(struct scsi_per_res_key)) != 0) 8336 continue; 8337 8338 lun->per_res[i].registered = 0; 8339 memset(&lun->per_res[i].res_key, 0, 8340 sizeof(struct scsi_per_res_key)); 8341 lun->pr_key_count--; 8342 8343 if (!persis_offset 8344 && i < persis_offset) 8345 lun->pending_ua[i] |= 8346 CTL_UA_REG_PREEMPT; 8347 else if (persis_offset 8348 && i >= persis_offset) 8349 lun->pending_ua[i - persis_offset] |= 8350 CTL_UA_REG_PREEMPT; 8351 } 8352 } 8353 } else { 8354 /* 8355 * Temporarily unregister so it won't get removed 8356 * or UA generated 8357 */ 8358 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8359 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8360 if (lun->per_res[i].registered == 0) 8361 continue; 8362 8363 if (memcmp(msg->pr.pr_info.sa_res_key, 8364 lun->per_res[i].res_key.key, 8365 sizeof(struct scsi_per_res_key)) == 0) { 8366 lun->per_res[i].registered = 0; 8367 memset(&lun->per_res[i].res_key, 0, 8368 sizeof(struct scsi_per_res_key)); 8369 lun->pr_key_count--; 8370 if (!persis_offset 8371 && i < CTL_MAX_INITIATORS) 8372 lun->pending_ua[i] |= 8373 CTL_UA_REG_PREEMPT; 8374 else if (persis_offset 8375 && i >= persis_offset) 8376 lun->pending_ua[i - persis_offset] |= 8377 CTL_UA_REG_PREEMPT; 8378 } else if (msg->pr.pr_info.res_type != lun->res_type 8379 && (lun->res_type == SPR_TYPE_WR_EX_RO 8380 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8381 if (!persis_offset 8382 && i < persis_offset) 8383 lun->pending_ua[i] |= 8384 CTL_UA_RES_RELEASE; 8385 else if (persis_offset 8386 && i >= persis_offset) 8387 lun->pending_ua[i - persis_offset] |= 8388 CTL_UA_RES_RELEASE; 8389 } 8390 } 8391 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8392 lun->res_type = msg->pr.pr_info.res_type; 8393 if (lun->res_type != SPR_TYPE_WR_EX_AR 8394 && lun->res_type != SPR_TYPE_EX_AC_AR) 8395 lun->pr_res_idx = msg->pr.pr_info.residx; 8396 else 8397 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8398 } 8399 lun->PRGeneration++; 8400 8401 } 8402 8403 8404 int 8405 ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8406 { 8407 int retval; 8408 int isc_retval; 8409 u_int32_t param_len; 8410 struct scsi_per_res_out *cdb; 8411 struct ctl_lun *lun; 8412 struct scsi_per_res_out_parms* param; 8413 struct ctl_softc *softc; 8414 uint32_t residx; 8415 uint64_t res_key, sa_res_key; 8416 uint8_t type; 8417 union ctl_ha_msg persis_io; 8418 int i; 8419 8420 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8421 8422 retval = CTL_RETVAL_COMPLETE; 8423 8424 softc = control_softc; 8425 8426 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8427 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8428 8429 /* 8430 * We only support whole-LUN scope. The scope & type are ignored for 8431 * register, register and ignore existing key and clear. 8432 * We sometimes ignore scope and type on preempts too!! 8433 * Verify reservation type here as well. 8434 */ 8435 type = cdb->scope_type & SPR_TYPE_MASK; 8436 if ((cdb->action == SPRO_RESERVE) 8437 || (cdb->action == SPRO_RELEASE)) { 8438 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8439 ctl_set_invalid_field(/*ctsio*/ ctsio, 8440 /*sks_valid*/ 1, 8441 /*command*/ 1, 8442 /*field*/ 2, 8443 /*bit_valid*/ 1, 8444 /*bit*/ 4); 8445 ctl_done((union ctl_io *)ctsio); 8446 return (CTL_RETVAL_COMPLETE); 8447 } 8448 8449 if (type>8 || type==2 || type==4 || type==0) { 8450 ctl_set_invalid_field(/*ctsio*/ ctsio, 8451 /*sks_valid*/ 1, 8452 /*command*/ 1, 8453 /*field*/ 2, 8454 /*bit_valid*/ 1, 8455 /*bit*/ 0); 8456 ctl_done((union ctl_io *)ctsio); 8457 return (CTL_RETVAL_COMPLETE); 8458 } 8459 } 8460 8461 param_len = scsi_4btoul(cdb->length); 8462 8463 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8464 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8465 ctsio->kern_data_len = param_len; 8466 ctsio->kern_total_len = param_len; 8467 ctsio->kern_data_resid = 0; 8468 ctsio->kern_rel_offset = 0; 8469 ctsio->kern_sg_entries = 0; 8470 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8471 ctsio->be_move_done = ctl_config_move_done; 8472 ctl_datamove((union ctl_io *)ctsio); 8473 8474 return (CTL_RETVAL_COMPLETE); 8475 } 8476 8477 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8478 8479 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8480 res_key = scsi_8btou64(param->res_key.key); 8481 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8482 8483 /* 8484 * Validate the reservation key here except for SPRO_REG_IGNO 8485 * This must be done for all other service actions 8486 */ 8487 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8488 mtx_lock(&lun->lun_lock); 8489 if (lun->per_res[residx].registered) { 8490 if (memcmp(param->res_key.key, 8491 lun->per_res[residx].res_key.key, 8492 ctl_min(sizeof(param->res_key), 8493 sizeof(lun->per_res[residx].res_key))) != 0) { 8494 /* 8495 * The current key passed in doesn't match 8496 * the one the initiator previously 8497 * registered. 8498 */ 8499 mtx_unlock(&lun->lun_lock); 8500 free(ctsio->kern_data_ptr, M_CTL); 8501 ctl_set_reservation_conflict(ctsio); 8502 ctl_done((union ctl_io *)ctsio); 8503 return (CTL_RETVAL_COMPLETE); 8504 } 8505 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8506 /* 8507 * We are not registered 8508 */ 8509 mtx_unlock(&lun->lun_lock); 8510 free(ctsio->kern_data_ptr, M_CTL); 8511 ctl_set_reservation_conflict(ctsio); 8512 ctl_done((union ctl_io *)ctsio); 8513 return (CTL_RETVAL_COMPLETE); 8514 } else if (res_key != 0) { 8515 /* 8516 * We are not registered and trying to register but 8517 * the register key isn't zero. 8518 */ 8519 mtx_unlock(&lun->lun_lock); 8520 free(ctsio->kern_data_ptr, M_CTL); 8521 ctl_set_reservation_conflict(ctsio); 8522 ctl_done((union ctl_io *)ctsio); 8523 return (CTL_RETVAL_COMPLETE); 8524 } 8525 mtx_unlock(&lun->lun_lock); 8526 } 8527 8528 switch (cdb->action & SPRO_ACTION_MASK) { 8529 case SPRO_REGISTER: 8530 case SPRO_REG_IGNO: { 8531 8532 #if 0 8533 printf("Registration received\n"); 8534 #endif 8535 8536 /* 8537 * We don't support any of these options, as we report in 8538 * the read capabilities request (see 8539 * ctl_persistent_reserve_in(), above). 8540 */ 8541 if ((param->flags & SPR_SPEC_I_PT) 8542 || (param->flags & SPR_ALL_TG_PT) 8543 || (param->flags & SPR_APTPL)) { 8544 int bit_ptr; 8545 8546 if (param->flags & SPR_APTPL) 8547 bit_ptr = 0; 8548 else if (param->flags & SPR_ALL_TG_PT) 8549 bit_ptr = 2; 8550 else /* SPR_SPEC_I_PT */ 8551 bit_ptr = 3; 8552 8553 free(ctsio->kern_data_ptr, M_CTL); 8554 ctl_set_invalid_field(ctsio, 8555 /*sks_valid*/ 1, 8556 /*command*/ 0, 8557 /*field*/ 20, 8558 /*bit_valid*/ 1, 8559 /*bit*/ bit_ptr); 8560 ctl_done((union ctl_io *)ctsio); 8561 return (CTL_RETVAL_COMPLETE); 8562 } 8563 8564 mtx_lock(&lun->lun_lock); 8565 8566 /* 8567 * The initiator wants to clear the 8568 * key/unregister. 8569 */ 8570 if (sa_res_key == 0) { 8571 if ((res_key == 0 8572 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8573 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8574 && !lun->per_res[residx].registered)) { 8575 mtx_unlock(&lun->lun_lock); 8576 goto done; 8577 } 8578 8579 lun->per_res[residx].registered = 0; 8580 memset(&lun->per_res[residx].res_key, 8581 0, sizeof(lun->per_res[residx].res_key)); 8582 lun->pr_key_count--; 8583 8584 if (residx == lun->pr_res_idx) { 8585 lun->flags &= ~CTL_LUN_PR_RESERVED; 8586 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8587 8588 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8589 || lun->res_type == SPR_TYPE_EX_AC_RO) 8590 && lun->pr_key_count) { 8591 /* 8592 * If the reservation is a registrants 8593 * only type we need to generate a UA 8594 * for other registered inits. The 8595 * sense code should be RESERVATIONS 8596 * RELEASED 8597 */ 8598 8599 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8600 if (lun->per_res[ 8601 i+persis_offset].registered 8602 == 0) 8603 continue; 8604 lun->pending_ua[i] |= 8605 CTL_UA_RES_RELEASE; 8606 } 8607 } 8608 lun->res_type = 0; 8609 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8610 if (lun->pr_key_count==0) { 8611 lun->flags &= ~CTL_LUN_PR_RESERVED; 8612 lun->res_type = 0; 8613 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8614 } 8615 } 8616 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8617 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8618 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8619 persis_io.pr.pr_info.residx = residx; 8620 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8621 &persis_io, sizeof(persis_io), 0 )) > 8622 CTL_HA_STATUS_SUCCESS) { 8623 printf("CTL:Persis Out error returned from " 8624 "ctl_ha_msg_send %d\n", isc_retval); 8625 } 8626 } else /* sa_res_key != 0 */ { 8627 8628 /* 8629 * If we aren't registered currently then increment 8630 * the key count and set the registered flag. 8631 */ 8632 if (!lun->per_res[residx].registered) { 8633 lun->pr_key_count++; 8634 lun->per_res[residx].registered = 1; 8635 } 8636 8637 memcpy(&lun->per_res[residx].res_key, 8638 param->serv_act_res_key, 8639 ctl_min(sizeof(param->serv_act_res_key), 8640 sizeof(lun->per_res[residx].res_key))); 8641 8642 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8643 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8644 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8645 persis_io.pr.pr_info.residx = residx; 8646 memcpy(persis_io.pr.pr_info.sa_res_key, 8647 param->serv_act_res_key, 8648 sizeof(param->serv_act_res_key)); 8649 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8650 &persis_io, sizeof(persis_io), 0)) > 8651 CTL_HA_STATUS_SUCCESS) { 8652 printf("CTL:Persis Out error returned from " 8653 "ctl_ha_msg_send %d\n", isc_retval); 8654 } 8655 } 8656 lun->PRGeneration++; 8657 mtx_unlock(&lun->lun_lock); 8658 8659 break; 8660 } 8661 case SPRO_RESERVE: 8662 #if 0 8663 printf("Reserve executed type %d\n", type); 8664 #endif 8665 mtx_lock(&lun->lun_lock); 8666 if (lun->flags & CTL_LUN_PR_RESERVED) { 8667 /* 8668 * if this isn't the reservation holder and it's 8669 * not a "all registrants" type or if the type is 8670 * different then we have a conflict 8671 */ 8672 if ((lun->pr_res_idx != residx 8673 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8674 || lun->res_type != type) { 8675 mtx_unlock(&lun->lun_lock); 8676 free(ctsio->kern_data_ptr, M_CTL); 8677 ctl_set_reservation_conflict(ctsio); 8678 ctl_done((union ctl_io *)ctsio); 8679 return (CTL_RETVAL_COMPLETE); 8680 } 8681 mtx_unlock(&lun->lun_lock); 8682 } else /* create a reservation */ { 8683 /* 8684 * If it's not an "all registrants" type record 8685 * reservation holder 8686 */ 8687 if (type != SPR_TYPE_WR_EX_AR 8688 && type != SPR_TYPE_EX_AC_AR) 8689 lun->pr_res_idx = residx; /* Res holder */ 8690 else 8691 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8692 8693 lun->flags |= CTL_LUN_PR_RESERVED; 8694 lun->res_type = type; 8695 8696 mtx_unlock(&lun->lun_lock); 8697 8698 /* send msg to other side */ 8699 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8700 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8701 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8702 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8703 persis_io.pr.pr_info.res_type = type; 8704 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8705 &persis_io, sizeof(persis_io), 0)) > 8706 CTL_HA_STATUS_SUCCESS) { 8707 printf("CTL:Persis Out error returned from " 8708 "ctl_ha_msg_send %d\n", isc_retval); 8709 } 8710 } 8711 break; 8712 8713 case SPRO_RELEASE: 8714 mtx_lock(&lun->lun_lock); 8715 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8716 /* No reservation exists return good status */ 8717 mtx_unlock(&lun->lun_lock); 8718 goto done; 8719 } 8720 /* 8721 * Is this nexus a reservation holder? 8722 */ 8723 if (lun->pr_res_idx != residx 8724 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8725 /* 8726 * not a res holder return good status but 8727 * do nothing 8728 */ 8729 mtx_unlock(&lun->lun_lock); 8730 goto done; 8731 } 8732 8733 if (lun->res_type != type) { 8734 mtx_unlock(&lun->lun_lock); 8735 free(ctsio->kern_data_ptr, M_CTL); 8736 ctl_set_illegal_pr_release(ctsio); 8737 ctl_done((union ctl_io *)ctsio); 8738 return (CTL_RETVAL_COMPLETE); 8739 } 8740 8741 /* okay to release */ 8742 lun->flags &= ~CTL_LUN_PR_RESERVED; 8743 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8744 lun->res_type = 0; 8745 8746 /* 8747 * if this isn't an exclusive access 8748 * res generate UA for all other 8749 * registrants. 8750 */ 8751 if (type != SPR_TYPE_EX_AC 8752 && type != SPR_TYPE_WR_EX) { 8753 /* 8754 * temporarily unregister so we don't generate UA 8755 */ 8756 lun->per_res[residx].registered = 0; 8757 8758 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8759 if (lun->per_res[i+persis_offset].registered 8760 == 0) 8761 continue; 8762 lun->pending_ua[i] |= 8763 CTL_UA_RES_RELEASE; 8764 } 8765 8766 lun->per_res[residx].registered = 1; 8767 } 8768 mtx_unlock(&lun->lun_lock); 8769 /* Send msg to other side */ 8770 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8771 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8772 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8773 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8774 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8775 printf("CTL:Persis Out error returned from " 8776 "ctl_ha_msg_send %d\n", isc_retval); 8777 } 8778 break; 8779 8780 case SPRO_CLEAR: 8781 /* send msg to other side */ 8782 8783 mtx_lock(&lun->lun_lock); 8784 lun->flags &= ~CTL_LUN_PR_RESERVED; 8785 lun->res_type = 0; 8786 lun->pr_key_count = 0; 8787 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8788 8789 8790 memset(&lun->per_res[residx].res_key, 8791 0, sizeof(lun->per_res[residx].res_key)); 8792 lun->per_res[residx].registered = 0; 8793 8794 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8795 if (lun->per_res[i].registered) { 8796 if (!persis_offset && i < CTL_MAX_INITIATORS) 8797 lun->pending_ua[i] |= 8798 CTL_UA_RES_PREEMPT; 8799 else if (persis_offset && i >= persis_offset) 8800 lun->pending_ua[i-persis_offset] |= 8801 CTL_UA_RES_PREEMPT; 8802 8803 memset(&lun->per_res[i].res_key, 8804 0, sizeof(struct scsi_per_res_key)); 8805 lun->per_res[i].registered = 0; 8806 } 8807 lun->PRGeneration++; 8808 mtx_unlock(&lun->lun_lock); 8809 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8810 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8811 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8812 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8813 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8814 printf("CTL:Persis Out error returned from " 8815 "ctl_ha_msg_send %d\n", isc_retval); 8816 } 8817 break; 8818 8819 case SPRO_PREEMPT: { 8820 int nretval; 8821 8822 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8823 residx, ctsio, cdb, param); 8824 if (nretval != 0) 8825 return (CTL_RETVAL_COMPLETE); 8826 break; 8827 } 8828 default: 8829 panic("Invalid PR type %x", cdb->action); 8830 } 8831 8832 done: 8833 free(ctsio->kern_data_ptr, M_CTL); 8834 ctl_set_success(ctsio); 8835 ctl_done((union ctl_io *)ctsio); 8836 8837 return (retval); 8838 } 8839 8840 /* 8841 * This routine is for handling a message from the other SC pertaining to 8842 * persistent reserve out. All the error checking will have been done 8843 * so only perorming the action need be done here to keep the two 8844 * in sync. 8845 */ 8846 static void 8847 ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8848 { 8849 struct ctl_lun *lun; 8850 struct ctl_softc *softc; 8851 int i; 8852 uint32_t targ_lun; 8853 8854 softc = control_softc; 8855 8856 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8857 lun = softc->ctl_luns[targ_lun]; 8858 mtx_lock(&lun->lun_lock); 8859 switch(msg->pr.pr_info.action) { 8860 case CTL_PR_REG_KEY: 8861 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8862 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8863 lun->pr_key_count++; 8864 } 8865 lun->PRGeneration++; 8866 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8867 msg->pr.pr_info.sa_res_key, 8868 sizeof(struct scsi_per_res_key)); 8869 break; 8870 8871 case CTL_PR_UNREG_KEY: 8872 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8873 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8874 0, sizeof(struct scsi_per_res_key)); 8875 lun->pr_key_count--; 8876 8877 /* XXX Need to see if the reservation has been released */ 8878 /* if so do we need to generate UA? */ 8879 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8880 lun->flags &= ~CTL_LUN_PR_RESERVED; 8881 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8882 8883 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8884 || lun->res_type == SPR_TYPE_EX_AC_RO) 8885 && lun->pr_key_count) { 8886 /* 8887 * If the reservation is a registrants 8888 * only type we need to generate a UA 8889 * for other registered inits. The 8890 * sense code should be RESERVATIONS 8891 * RELEASED 8892 */ 8893 8894 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8895 if (lun->per_res[i+ 8896 persis_offset].registered == 0) 8897 continue; 8898 8899 lun->pending_ua[i] |= 8900 CTL_UA_RES_RELEASE; 8901 } 8902 } 8903 lun->res_type = 0; 8904 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8905 if (lun->pr_key_count==0) { 8906 lun->flags &= ~CTL_LUN_PR_RESERVED; 8907 lun->res_type = 0; 8908 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8909 } 8910 } 8911 lun->PRGeneration++; 8912 break; 8913 8914 case CTL_PR_RESERVE: 8915 lun->flags |= CTL_LUN_PR_RESERVED; 8916 lun->res_type = msg->pr.pr_info.res_type; 8917 lun->pr_res_idx = msg->pr.pr_info.residx; 8918 8919 break; 8920 8921 case CTL_PR_RELEASE: 8922 /* 8923 * if this isn't an exclusive access res generate UA for all 8924 * other registrants. 8925 */ 8926 if (lun->res_type != SPR_TYPE_EX_AC 8927 && lun->res_type != SPR_TYPE_WR_EX) { 8928 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8929 if (lun->per_res[i+persis_offset].registered) 8930 lun->pending_ua[i] |= 8931 CTL_UA_RES_RELEASE; 8932 } 8933 8934 lun->flags &= ~CTL_LUN_PR_RESERVED; 8935 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8936 lun->res_type = 0; 8937 break; 8938 8939 case CTL_PR_PREEMPT: 8940 ctl_pro_preempt_other(lun, msg); 8941 break; 8942 case CTL_PR_CLEAR: 8943 lun->flags &= ~CTL_LUN_PR_RESERVED; 8944 lun->res_type = 0; 8945 lun->pr_key_count = 0; 8946 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8947 8948 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8949 if (lun->per_res[i].registered == 0) 8950 continue; 8951 if (!persis_offset 8952 && i < CTL_MAX_INITIATORS) 8953 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8954 else if (persis_offset 8955 && i >= persis_offset) 8956 lun->pending_ua[i-persis_offset] |= 8957 CTL_UA_RES_PREEMPT; 8958 memset(&lun->per_res[i].res_key, 0, 8959 sizeof(struct scsi_per_res_key)); 8960 lun->per_res[i].registered = 0; 8961 } 8962 lun->PRGeneration++; 8963 break; 8964 } 8965 8966 mtx_unlock(&lun->lun_lock); 8967 } 8968 8969 int 8970 ctl_read_write(struct ctl_scsiio *ctsio) 8971 { 8972 struct ctl_lun *lun; 8973 struct ctl_lba_len_flags *lbalen; 8974 uint64_t lba; 8975 uint32_t num_blocks; 8976 int fua, dpo; 8977 int retval; 8978 int isread; 8979 8980 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8981 8982 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8983 8984 fua = 0; 8985 dpo = 0; 8986 8987 retval = CTL_RETVAL_COMPLETE; 8988 8989 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8990 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8991 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8992 uint32_t residx; 8993 8994 /* 8995 * XXX KDM need a lock here. 8996 */ 8997 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8998 if ((lun->res_type == SPR_TYPE_EX_AC 8999 && residx != lun->pr_res_idx) 9000 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9001 || lun->res_type == SPR_TYPE_EX_AC_AR) 9002 && !lun->per_res[residx].registered)) { 9003 ctl_set_reservation_conflict(ctsio); 9004 ctl_done((union ctl_io *)ctsio); 9005 return (CTL_RETVAL_COMPLETE); 9006 } 9007 } 9008 9009 switch (ctsio->cdb[0]) { 9010 case READ_6: 9011 case WRITE_6: { 9012 struct scsi_rw_6 *cdb; 9013 9014 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9015 9016 lba = scsi_3btoul(cdb->addr); 9017 /* only 5 bits are valid in the most significant address byte */ 9018 lba &= 0x1fffff; 9019 num_blocks = cdb->length; 9020 /* 9021 * This is correct according to SBC-2. 9022 */ 9023 if (num_blocks == 0) 9024 num_blocks = 256; 9025 break; 9026 } 9027 case READ_10: 9028 case WRITE_10: { 9029 struct scsi_rw_10 *cdb; 9030 9031 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9032 9033 if (cdb->byte2 & SRW10_FUA) 9034 fua = 1; 9035 if (cdb->byte2 & SRW10_DPO) 9036 dpo = 1; 9037 9038 lba = scsi_4btoul(cdb->addr); 9039 num_blocks = scsi_2btoul(cdb->length); 9040 break; 9041 } 9042 case WRITE_VERIFY_10: { 9043 struct scsi_write_verify_10 *cdb; 9044 9045 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9046 9047 /* 9048 * XXX KDM we should do actual write verify support at some 9049 * point. This is obviously fake, we're just translating 9050 * things to a write. So we don't even bother checking the 9051 * BYTCHK field, since we don't do any verification. If 9052 * the user asks for it, we'll just pretend we did it. 9053 */ 9054 if (cdb->byte2 & SWV_DPO) 9055 dpo = 1; 9056 9057 lba = scsi_4btoul(cdb->addr); 9058 num_blocks = scsi_2btoul(cdb->length); 9059 break; 9060 } 9061 case READ_12: 9062 case WRITE_12: { 9063 struct scsi_rw_12 *cdb; 9064 9065 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9066 9067 if (cdb->byte2 & SRW12_FUA) 9068 fua = 1; 9069 if (cdb->byte2 & SRW12_DPO) 9070 dpo = 1; 9071 lba = scsi_4btoul(cdb->addr); 9072 num_blocks = scsi_4btoul(cdb->length); 9073 break; 9074 } 9075 case WRITE_VERIFY_12: { 9076 struct scsi_write_verify_12 *cdb; 9077 9078 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9079 9080 if (cdb->byte2 & SWV_DPO) 9081 dpo = 1; 9082 9083 lba = scsi_4btoul(cdb->addr); 9084 num_blocks = scsi_4btoul(cdb->length); 9085 9086 break; 9087 } 9088 case READ_16: 9089 case WRITE_16: { 9090 struct scsi_rw_16 *cdb; 9091 9092 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9093 9094 if (cdb->byte2 & SRW12_FUA) 9095 fua = 1; 9096 if (cdb->byte2 & SRW12_DPO) 9097 dpo = 1; 9098 9099 lba = scsi_8btou64(cdb->addr); 9100 num_blocks = scsi_4btoul(cdb->length); 9101 break; 9102 } 9103 case WRITE_VERIFY_16: { 9104 struct scsi_write_verify_16 *cdb; 9105 9106 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9107 9108 if (cdb->byte2 & SWV_DPO) 9109 dpo = 1; 9110 9111 lba = scsi_8btou64(cdb->addr); 9112 num_blocks = scsi_4btoul(cdb->length); 9113 break; 9114 } 9115 default: 9116 /* 9117 * We got a command we don't support. This shouldn't 9118 * happen, commands should be filtered out above us. 9119 */ 9120 ctl_set_invalid_opcode(ctsio); 9121 ctl_done((union ctl_io *)ctsio); 9122 9123 return (CTL_RETVAL_COMPLETE); 9124 break; /* NOTREACHED */ 9125 } 9126 9127 /* 9128 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9129 * interesting for us, but if RAIDCore is in write-back mode, 9130 * getting it to do write-through for a particular transaction may 9131 * not be possible. 9132 */ 9133 9134 /* 9135 * The first check is to make sure we're in bounds, the second 9136 * check is to catch wrap-around problems. If the lba + num blocks 9137 * is less than the lba, then we've wrapped around and the block 9138 * range is invalid anyway. 9139 */ 9140 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9141 || ((lba + num_blocks) < lba)) { 9142 ctl_set_lba_out_of_range(ctsio); 9143 ctl_done((union ctl_io *)ctsio); 9144 return (CTL_RETVAL_COMPLETE); 9145 } 9146 9147 /* 9148 * According to SBC-3, a transfer length of 0 is not an error. 9149 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9150 * translates to 256 blocks for those commands. 9151 */ 9152 if (num_blocks == 0) { 9153 ctl_set_success(ctsio); 9154 ctl_done((union ctl_io *)ctsio); 9155 return (CTL_RETVAL_COMPLETE); 9156 } 9157 9158 lbalen = (struct ctl_lba_len_flags *) 9159 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9160 lbalen->lba = lba; 9161 lbalen->len = num_blocks; 9162 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 9163 9164 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9165 ctsio->kern_rel_offset = 0; 9166 9167 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9168 9169 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9170 9171 return (retval); 9172 } 9173 9174 static int 9175 ctl_cnw_cont(union ctl_io *io) 9176 { 9177 struct ctl_scsiio *ctsio; 9178 struct ctl_lun *lun; 9179 struct ctl_lba_len_flags *lbalen; 9180 int retval; 9181 9182 ctsio = &io->scsiio; 9183 ctsio->io_hdr.status = CTL_STATUS_NONE; 9184 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9185 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9186 lbalen = (struct ctl_lba_len_flags *) 9187 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9188 lbalen->flags = CTL_LLF_WRITE; 9189 9190 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9191 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9192 return (retval); 9193 } 9194 9195 int 9196 ctl_cnw(struct ctl_scsiio *ctsio) 9197 { 9198 struct ctl_lun *lun; 9199 struct ctl_lba_len_flags *lbalen; 9200 uint64_t lba; 9201 uint32_t num_blocks; 9202 int fua, dpo; 9203 int retval; 9204 9205 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9206 9207 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9208 9209 fua = 0; 9210 dpo = 0; 9211 9212 retval = CTL_RETVAL_COMPLETE; 9213 9214 switch (ctsio->cdb[0]) { 9215 case COMPARE_AND_WRITE: { 9216 struct scsi_compare_and_write *cdb; 9217 9218 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9219 9220 if (cdb->byte2 & SRW10_FUA) 9221 fua = 1; 9222 if (cdb->byte2 & SRW10_DPO) 9223 dpo = 1; 9224 lba = scsi_8btou64(cdb->addr); 9225 num_blocks = cdb->length; 9226 break; 9227 } 9228 default: 9229 /* 9230 * We got a command we don't support. This shouldn't 9231 * happen, commands should be filtered out above us. 9232 */ 9233 ctl_set_invalid_opcode(ctsio); 9234 ctl_done((union ctl_io *)ctsio); 9235 9236 return (CTL_RETVAL_COMPLETE); 9237 break; /* NOTREACHED */ 9238 } 9239 9240 /* 9241 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9242 * interesting for us, but if RAIDCore is in write-back mode, 9243 * getting it to do write-through for a particular transaction may 9244 * not be possible. 9245 */ 9246 9247 /* 9248 * The first check is to make sure we're in bounds, the second 9249 * check is to catch wrap-around problems. If the lba + num blocks 9250 * is less than the lba, then we've wrapped around and the block 9251 * range is invalid anyway. 9252 */ 9253 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9254 || ((lba + num_blocks) < lba)) { 9255 ctl_set_lba_out_of_range(ctsio); 9256 ctl_done((union ctl_io *)ctsio); 9257 return (CTL_RETVAL_COMPLETE); 9258 } 9259 9260 /* 9261 * According to SBC-3, a transfer length of 0 is not an error. 9262 */ 9263 if (num_blocks == 0) { 9264 ctl_set_success(ctsio); 9265 ctl_done((union ctl_io *)ctsio); 9266 return (CTL_RETVAL_COMPLETE); 9267 } 9268 9269 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9270 ctsio->kern_rel_offset = 0; 9271 9272 /* 9273 * Set the IO_CONT flag, so that if this I/O gets passed to 9274 * ctl_data_submit_done(), it'll get passed back to 9275 * ctl_ctl_cnw_cont() for further processing. 9276 */ 9277 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9278 ctsio->io_cont = ctl_cnw_cont; 9279 9280 lbalen = (struct ctl_lba_len_flags *) 9281 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9282 lbalen->lba = lba; 9283 lbalen->len = num_blocks; 9284 lbalen->flags = CTL_LLF_COMPARE; 9285 9286 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9287 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9288 return (retval); 9289 } 9290 9291 int 9292 ctl_verify(struct ctl_scsiio *ctsio) 9293 { 9294 struct ctl_lun *lun; 9295 struct ctl_lba_len_flags *lbalen; 9296 uint64_t lba; 9297 uint32_t num_blocks; 9298 int bytchk, dpo; 9299 int retval; 9300 9301 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9302 9303 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9304 9305 bytchk = 0; 9306 dpo = 0; 9307 retval = CTL_RETVAL_COMPLETE; 9308 9309 switch (ctsio->cdb[0]) { 9310 case VERIFY_10: { 9311 struct scsi_verify_10 *cdb; 9312 9313 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9314 if (cdb->byte2 & SVFY_BYTCHK) 9315 bytchk = 1; 9316 if (cdb->byte2 & SVFY_DPO) 9317 dpo = 1; 9318 lba = scsi_4btoul(cdb->addr); 9319 num_blocks = scsi_2btoul(cdb->length); 9320 break; 9321 } 9322 case VERIFY_12: { 9323 struct scsi_verify_12 *cdb; 9324 9325 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9326 if (cdb->byte2 & SVFY_BYTCHK) 9327 bytchk = 1; 9328 if (cdb->byte2 & SVFY_DPO) 9329 dpo = 1; 9330 lba = scsi_4btoul(cdb->addr); 9331 num_blocks = scsi_4btoul(cdb->length); 9332 break; 9333 } 9334 case VERIFY_16: { 9335 struct scsi_rw_16 *cdb; 9336 9337 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9338 if (cdb->byte2 & SVFY_BYTCHK) 9339 bytchk = 1; 9340 if (cdb->byte2 & SVFY_DPO) 9341 dpo = 1; 9342 lba = scsi_8btou64(cdb->addr); 9343 num_blocks = scsi_4btoul(cdb->length); 9344 break; 9345 } 9346 default: 9347 /* 9348 * We got a command we don't support. This shouldn't 9349 * happen, commands should be filtered out above us. 9350 */ 9351 ctl_set_invalid_opcode(ctsio); 9352 ctl_done((union ctl_io *)ctsio); 9353 return (CTL_RETVAL_COMPLETE); 9354 } 9355 9356 /* 9357 * The first check is to make sure we're in bounds, the second 9358 * check is to catch wrap-around problems. If the lba + num blocks 9359 * is less than the lba, then we've wrapped around and the block 9360 * range is invalid anyway. 9361 */ 9362 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9363 || ((lba + num_blocks) < lba)) { 9364 ctl_set_lba_out_of_range(ctsio); 9365 ctl_done((union ctl_io *)ctsio); 9366 return (CTL_RETVAL_COMPLETE); 9367 } 9368 9369 /* 9370 * According to SBC-3, a transfer length of 0 is not an error. 9371 */ 9372 if (num_blocks == 0) { 9373 ctl_set_success(ctsio); 9374 ctl_done((union ctl_io *)ctsio); 9375 return (CTL_RETVAL_COMPLETE); 9376 } 9377 9378 lbalen = (struct ctl_lba_len_flags *) 9379 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9380 lbalen->lba = lba; 9381 lbalen->len = num_blocks; 9382 if (bytchk) { 9383 lbalen->flags = CTL_LLF_COMPARE; 9384 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9385 } else { 9386 lbalen->flags = CTL_LLF_VERIFY; 9387 ctsio->kern_total_len = 0; 9388 } 9389 ctsio->kern_rel_offset = 0; 9390 9391 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9392 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9393 return (retval); 9394 } 9395 9396 int 9397 ctl_report_luns(struct ctl_scsiio *ctsio) 9398 { 9399 struct scsi_report_luns *cdb; 9400 struct scsi_report_luns_data *lun_data; 9401 struct ctl_lun *lun, *request_lun; 9402 int num_luns, retval; 9403 uint32_t alloc_len, lun_datalen; 9404 int num_filled, well_known; 9405 uint32_t initidx, targ_lun_id, lun_id; 9406 9407 retval = CTL_RETVAL_COMPLETE; 9408 well_known = 0; 9409 9410 cdb = (struct scsi_report_luns *)ctsio->cdb; 9411 9412 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9413 9414 mtx_lock(&control_softc->ctl_lock); 9415 num_luns = control_softc->num_luns; 9416 mtx_unlock(&control_softc->ctl_lock); 9417 9418 switch (cdb->select_report) { 9419 case RPL_REPORT_DEFAULT: 9420 case RPL_REPORT_ALL: 9421 break; 9422 case RPL_REPORT_WELLKNOWN: 9423 well_known = 1; 9424 num_luns = 0; 9425 break; 9426 default: 9427 ctl_set_invalid_field(ctsio, 9428 /*sks_valid*/ 1, 9429 /*command*/ 1, 9430 /*field*/ 2, 9431 /*bit_valid*/ 0, 9432 /*bit*/ 0); 9433 ctl_done((union ctl_io *)ctsio); 9434 return (retval); 9435 break; /* NOTREACHED */ 9436 } 9437 9438 alloc_len = scsi_4btoul(cdb->length); 9439 /* 9440 * The initiator has to allocate at least 16 bytes for this request, 9441 * so he can at least get the header and the first LUN. Otherwise 9442 * we reject the request (per SPC-3 rev 14, section 6.21). 9443 */ 9444 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9445 sizeof(struct scsi_report_luns_lundata))) { 9446 ctl_set_invalid_field(ctsio, 9447 /*sks_valid*/ 1, 9448 /*command*/ 1, 9449 /*field*/ 6, 9450 /*bit_valid*/ 0, 9451 /*bit*/ 0); 9452 ctl_done((union ctl_io *)ctsio); 9453 return (retval); 9454 } 9455 9456 request_lun = (struct ctl_lun *) 9457 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9458 9459 lun_datalen = sizeof(*lun_data) + 9460 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9461 9462 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9463 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9464 ctsio->kern_sg_entries = 0; 9465 9466 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9467 9468 mtx_lock(&control_softc->ctl_lock); 9469 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9470 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9471 if (lun_id >= CTL_MAX_LUNS) 9472 continue; 9473 lun = control_softc->ctl_luns[lun_id]; 9474 if (lun == NULL) 9475 continue; 9476 9477 if (targ_lun_id <= 0xff) { 9478 /* 9479 * Peripheral addressing method, bus number 0. 9480 */ 9481 lun_data->luns[num_filled].lundata[0] = 9482 RPL_LUNDATA_ATYP_PERIPH; 9483 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9484 num_filled++; 9485 } else if (targ_lun_id <= 0x3fff) { 9486 /* 9487 * Flat addressing method. 9488 */ 9489 lun_data->luns[num_filled].lundata[0] = 9490 RPL_LUNDATA_ATYP_FLAT | 9491 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9492 #ifdef OLDCTLHEADERS 9493 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9494 (targ_lun_id & SRLD_BUS_LUN_MASK); 9495 #endif 9496 lun_data->luns[num_filled].lundata[1] = 9497 #ifdef OLDCTLHEADERS 9498 targ_lun_id >> SRLD_BUS_LUN_BITS; 9499 #endif 9500 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9501 num_filled++; 9502 } else { 9503 printf("ctl_report_luns: bogus LUN number %jd, " 9504 "skipping\n", (intmax_t)targ_lun_id); 9505 } 9506 /* 9507 * According to SPC-3, rev 14 section 6.21: 9508 * 9509 * "The execution of a REPORT LUNS command to any valid and 9510 * installed logical unit shall clear the REPORTED LUNS DATA 9511 * HAS CHANGED unit attention condition for all logical 9512 * units of that target with respect to the requesting 9513 * initiator. A valid and installed logical unit is one 9514 * having a PERIPHERAL QUALIFIER of 000b in the standard 9515 * INQUIRY data (see 6.4.2)." 9516 * 9517 * If request_lun is NULL, the LUN this report luns command 9518 * was issued to is either disabled or doesn't exist. In that 9519 * case, we shouldn't clear any pending lun change unit 9520 * attention. 9521 */ 9522 if (request_lun != NULL) { 9523 mtx_lock(&lun->lun_lock); 9524 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9525 mtx_unlock(&lun->lun_lock); 9526 } 9527 } 9528 mtx_unlock(&control_softc->ctl_lock); 9529 9530 /* 9531 * It's quite possible that we've returned fewer LUNs than we allocated 9532 * space for. Trim it. 9533 */ 9534 lun_datalen = sizeof(*lun_data) + 9535 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9536 9537 if (lun_datalen < alloc_len) { 9538 ctsio->residual = alloc_len - lun_datalen; 9539 ctsio->kern_data_len = lun_datalen; 9540 ctsio->kern_total_len = lun_datalen; 9541 } else { 9542 ctsio->residual = 0; 9543 ctsio->kern_data_len = alloc_len; 9544 ctsio->kern_total_len = alloc_len; 9545 } 9546 ctsio->kern_data_resid = 0; 9547 ctsio->kern_rel_offset = 0; 9548 ctsio->kern_sg_entries = 0; 9549 9550 /* 9551 * We set this to the actual data length, regardless of how much 9552 * space we actually have to return results. If the user looks at 9553 * this value, he'll know whether or not he allocated enough space 9554 * and reissue the command if necessary. We don't support well 9555 * known logical units, so if the user asks for that, return none. 9556 */ 9557 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9558 9559 /* 9560 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9561 * this request. 9562 */ 9563 ctsio->scsi_status = SCSI_STATUS_OK; 9564 9565 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9566 ctsio->be_move_done = ctl_config_move_done; 9567 ctl_datamove((union ctl_io *)ctsio); 9568 9569 return (retval); 9570 } 9571 9572 int 9573 ctl_request_sense(struct ctl_scsiio *ctsio) 9574 { 9575 struct scsi_request_sense *cdb; 9576 struct scsi_sense_data *sense_ptr; 9577 struct ctl_lun *lun; 9578 uint32_t initidx; 9579 int have_error; 9580 scsi_sense_data_type sense_format; 9581 9582 cdb = (struct scsi_request_sense *)ctsio->cdb; 9583 9584 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9585 9586 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9587 9588 /* 9589 * Determine which sense format the user wants. 9590 */ 9591 if (cdb->byte2 & SRS_DESC) 9592 sense_format = SSD_TYPE_DESC; 9593 else 9594 sense_format = SSD_TYPE_FIXED; 9595 9596 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9597 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9598 ctsio->kern_sg_entries = 0; 9599 9600 /* 9601 * struct scsi_sense_data, which is currently set to 256 bytes, is 9602 * larger than the largest allowed value for the length field in the 9603 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9604 */ 9605 ctsio->residual = 0; 9606 ctsio->kern_data_len = cdb->length; 9607 ctsio->kern_total_len = cdb->length; 9608 9609 ctsio->kern_data_resid = 0; 9610 ctsio->kern_rel_offset = 0; 9611 ctsio->kern_sg_entries = 0; 9612 9613 /* 9614 * If we don't have a LUN, we don't have any pending sense. 9615 */ 9616 if (lun == NULL) 9617 goto no_sense; 9618 9619 have_error = 0; 9620 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9621 /* 9622 * Check for pending sense, and then for pending unit attentions. 9623 * Pending sense gets returned first, then pending unit attentions. 9624 */ 9625 mtx_lock(&lun->lun_lock); 9626 #ifdef CTL_WITH_CA 9627 if (ctl_is_set(lun->have_ca, initidx)) { 9628 scsi_sense_data_type stored_format; 9629 9630 /* 9631 * Check to see which sense format was used for the stored 9632 * sense data. 9633 */ 9634 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9635 9636 /* 9637 * If the user requested a different sense format than the 9638 * one we stored, then we need to convert it to the other 9639 * format. If we're going from descriptor to fixed format 9640 * sense data, we may lose things in translation, depending 9641 * on what options were used. 9642 * 9643 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9644 * for some reason we'll just copy it out as-is. 9645 */ 9646 if ((stored_format == SSD_TYPE_FIXED) 9647 && (sense_format == SSD_TYPE_DESC)) 9648 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9649 &lun->pending_sense[initidx], 9650 (struct scsi_sense_data_desc *)sense_ptr); 9651 else if ((stored_format == SSD_TYPE_DESC) 9652 && (sense_format == SSD_TYPE_FIXED)) 9653 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9654 &lun->pending_sense[initidx], 9655 (struct scsi_sense_data_fixed *)sense_ptr); 9656 else 9657 memcpy(sense_ptr, &lun->pending_sense[initidx], 9658 ctl_min(sizeof(*sense_ptr), 9659 sizeof(lun->pending_sense[initidx]))); 9660 9661 ctl_clear_mask(lun->have_ca, initidx); 9662 have_error = 1; 9663 } else 9664 #endif 9665 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9666 ctl_ua_type ua_type; 9667 9668 ua_type = ctl_build_ua(lun->pending_ua[initidx], 9669 sense_ptr, sense_format); 9670 if (ua_type != CTL_UA_NONE) { 9671 have_error = 1; 9672 /* We're reporting this UA, so clear it */ 9673 lun->pending_ua[initidx] &= ~ua_type; 9674 } 9675 } 9676 mtx_unlock(&lun->lun_lock); 9677 9678 /* 9679 * We already have a pending error, return it. 9680 */ 9681 if (have_error != 0) { 9682 /* 9683 * We report the SCSI status as OK, since the status of the 9684 * request sense command itself is OK. 9685 */ 9686 ctsio->scsi_status = SCSI_STATUS_OK; 9687 9688 /* 9689 * We report 0 for the sense length, because we aren't doing 9690 * autosense in this case. We're reporting sense as 9691 * parameter data. 9692 */ 9693 ctsio->sense_len = 0; 9694 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9695 ctsio->be_move_done = ctl_config_move_done; 9696 ctl_datamove((union ctl_io *)ctsio); 9697 9698 return (CTL_RETVAL_COMPLETE); 9699 } 9700 9701 no_sense: 9702 9703 /* 9704 * No sense information to report, so we report that everything is 9705 * okay. 9706 */ 9707 ctl_set_sense_data(sense_ptr, 9708 lun, 9709 sense_format, 9710 /*current_error*/ 1, 9711 /*sense_key*/ SSD_KEY_NO_SENSE, 9712 /*asc*/ 0x00, 9713 /*ascq*/ 0x00, 9714 SSD_ELEM_NONE); 9715 9716 ctsio->scsi_status = SCSI_STATUS_OK; 9717 9718 /* 9719 * We report 0 for the sense length, because we aren't doing 9720 * autosense in this case. We're reporting sense as parameter data. 9721 */ 9722 ctsio->sense_len = 0; 9723 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9724 ctsio->be_move_done = ctl_config_move_done; 9725 ctl_datamove((union ctl_io *)ctsio); 9726 9727 return (CTL_RETVAL_COMPLETE); 9728 } 9729 9730 int 9731 ctl_tur(struct ctl_scsiio *ctsio) 9732 { 9733 struct ctl_lun *lun; 9734 9735 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9736 9737 CTL_DEBUG_PRINT(("ctl_tur\n")); 9738 9739 if (lun == NULL) 9740 return (EINVAL); 9741 9742 ctsio->scsi_status = SCSI_STATUS_OK; 9743 ctsio->io_hdr.status = CTL_SUCCESS; 9744 9745 ctl_done((union ctl_io *)ctsio); 9746 9747 return (CTL_RETVAL_COMPLETE); 9748 } 9749 9750 #ifdef notyet 9751 static int 9752 ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9753 { 9754 9755 } 9756 #endif 9757 9758 static int 9759 ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9760 { 9761 struct scsi_vpd_supported_pages *pages; 9762 int sup_page_size; 9763 struct ctl_lun *lun; 9764 9765 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9766 9767 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9768 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9769 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9770 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9771 ctsio->kern_sg_entries = 0; 9772 9773 if (sup_page_size < alloc_len) { 9774 ctsio->residual = alloc_len - sup_page_size; 9775 ctsio->kern_data_len = sup_page_size; 9776 ctsio->kern_total_len = sup_page_size; 9777 } else { 9778 ctsio->residual = 0; 9779 ctsio->kern_data_len = alloc_len; 9780 ctsio->kern_total_len = alloc_len; 9781 } 9782 ctsio->kern_data_resid = 0; 9783 ctsio->kern_rel_offset = 0; 9784 ctsio->kern_sg_entries = 0; 9785 9786 /* 9787 * The control device is always connected. The disk device, on the 9788 * other hand, may not be online all the time. Need to change this 9789 * to figure out whether the disk device is actually online or not. 9790 */ 9791 if (lun != NULL) 9792 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9793 lun->be_lun->lun_type; 9794 else 9795 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9796 9797 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9798 /* Supported VPD pages */ 9799 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9800 /* Serial Number */ 9801 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9802 /* Device Identification */ 9803 pages->page_list[2] = SVPD_DEVICE_ID; 9804 /* SCSI Ports */ 9805 pages->page_list[3] = SVPD_SCSI_PORTS; 9806 /* Third-party Copy */ 9807 pages->page_list[4] = SVPD_SCSI_TPC; 9808 /* Block limits */ 9809 pages->page_list[5] = SVPD_BLOCK_LIMITS; 9810 /* Logical Block Provisioning */ 9811 pages->page_list[6] = SVPD_LBP; 9812 9813 ctsio->scsi_status = SCSI_STATUS_OK; 9814 9815 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9816 ctsio->be_move_done = ctl_config_move_done; 9817 ctl_datamove((union ctl_io *)ctsio); 9818 9819 return (CTL_RETVAL_COMPLETE); 9820 } 9821 9822 static int 9823 ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9824 { 9825 struct scsi_vpd_unit_serial_number *sn_ptr; 9826 struct ctl_lun *lun; 9827 9828 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9829 9830 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9831 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9832 ctsio->kern_sg_entries = 0; 9833 9834 if (sizeof(*sn_ptr) < alloc_len) { 9835 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9836 ctsio->kern_data_len = sizeof(*sn_ptr); 9837 ctsio->kern_total_len = sizeof(*sn_ptr); 9838 } else { 9839 ctsio->residual = 0; 9840 ctsio->kern_data_len = alloc_len; 9841 ctsio->kern_total_len = alloc_len; 9842 } 9843 ctsio->kern_data_resid = 0; 9844 ctsio->kern_rel_offset = 0; 9845 ctsio->kern_sg_entries = 0; 9846 9847 /* 9848 * The control device is always connected. The disk device, on the 9849 * other hand, may not be online all the time. Need to change this 9850 * to figure out whether the disk device is actually online or not. 9851 */ 9852 if (lun != NULL) 9853 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9854 lun->be_lun->lun_type; 9855 else 9856 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9857 9858 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9859 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9860 /* 9861 * If we don't have a LUN, we just leave the serial number as 9862 * all spaces. 9863 */ 9864 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9865 if (lun != NULL) { 9866 strncpy((char *)sn_ptr->serial_num, 9867 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9868 } 9869 ctsio->scsi_status = SCSI_STATUS_OK; 9870 9871 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9872 ctsio->be_move_done = ctl_config_move_done; 9873 ctl_datamove((union ctl_io *)ctsio); 9874 9875 return (CTL_RETVAL_COMPLETE); 9876 } 9877 9878 9879 static int 9880 ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9881 { 9882 struct scsi_vpd_device_id *devid_ptr; 9883 struct scsi_vpd_id_descriptor *desc; 9884 struct ctl_softc *ctl_softc; 9885 struct ctl_lun *lun; 9886 struct ctl_port *port; 9887 int data_len; 9888 uint8_t proto; 9889 9890 ctl_softc = control_softc; 9891 9892 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9893 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9894 9895 data_len = sizeof(struct scsi_vpd_device_id) + 9896 sizeof(struct scsi_vpd_id_descriptor) + 9897 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9898 sizeof(struct scsi_vpd_id_descriptor) + 9899 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9900 if (lun && lun->lun_devid) 9901 data_len += lun->lun_devid->len; 9902 if (port->port_devid) 9903 data_len += port->port_devid->len; 9904 if (port->target_devid) 9905 data_len += port->target_devid->len; 9906 9907 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9908 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9909 ctsio->kern_sg_entries = 0; 9910 9911 if (data_len < alloc_len) { 9912 ctsio->residual = alloc_len - data_len; 9913 ctsio->kern_data_len = data_len; 9914 ctsio->kern_total_len = data_len; 9915 } else { 9916 ctsio->residual = 0; 9917 ctsio->kern_data_len = alloc_len; 9918 ctsio->kern_total_len = alloc_len; 9919 } 9920 ctsio->kern_data_resid = 0; 9921 ctsio->kern_rel_offset = 0; 9922 ctsio->kern_sg_entries = 0; 9923 9924 /* 9925 * The control device is always connected. The disk device, on the 9926 * other hand, may not be online all the time. 9927 */ 9928 if (lun != NULL) 9929 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9930 lun->be_lun->lun_type; 9931 else 9932 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9933 devid_ptr->page_code = SVPD_DEVICE_ID; 9934 scsi_ulto2b(data_len - 4, devid_ptr->length); 9935 9936 if (port->port_type == CTL_PORT_FC) 9937 proto = SCSI_PROTO_FC << 4; 9938 else if (port->port_type == CTL_PORT_ISCSI) 9939 proto = SCSI_PROTO_ISCSI << 4; 9940 else 9941 proto = SCSI_PROTO_SPI << 4; 9942 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9943 9944 /* 9945 * We're using a LUN association here. i.e., this device ID is a 9946 * per-LUN identifier. 9947 */ 9948 if (lun && lun->lun_devid) { 9949 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9950 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9951 lun->lun_devid->len); 9952 } 9953 9954 /* 9955 * This is for the WWPN which is a port association. 9956 */ 9957 if (port->port_devid) { 9958 memcpy(desc, port->port_devid->data, port->port_devid->len); 9959 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9960 port->port_devid->len); 9961 } 9962 9963 /* 9964 * This is for the Relative Target Port(type 4h) identifier 9965 */ 9966 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9967 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9968 SVPD_ID_TYPE_RELTARG; 9969 desc->length = 4; 9970 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9971 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9972 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9973 9974 /* 9975 * This is for the Target Port Group(type 5h) identifier 9976 */ 9977 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9978 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9979 SVPD_ID_TYPE_TPORTGRP; 9980 desc->length = 4; 9981 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9982 &desc->identifier[2]); 9983 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9984 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9985 9986 /* 9987 * This is for the Target identifier 9988 */ 9989 if (port->target_devid) { 9990 memcpy(desc, port->target_devid->data, port->target_devid->len); 9991 } 9992 9993 ctsio->scsi_status = SCSI_STATUS_OK; 9994 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9995 ctsio->be_move_done = ctl_config_move_done; 9996 ctl_datamove((union ctl_io *)ctsio); 9997 9998 return (CTL_RETVAL_COMPLETE); 9999 } 10000 10001 static int 10002 ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10003 { 10004 struct ctl_softc *softc = control_softc; 10005 struct scsi_vpd_scsi_ports *sp; 10006 struct scsi_vpd_port_designation *pd; 10007 struct scsi_vpd_port_designation_cont *pdc; 10008 struct ctl_lun *lun; 10009 struct ctl_port *port; 10010 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10011 int num_target_port_groups, single; 10012 10013 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10014 10015 single = ctl_is_single; 10016 if (single) 10017 num_target_port_groups = 1; 10018 else 10019 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10020 num_target_ports = 0; 10021 iid_len = 0; 10022 id_len = 0; 10023 mtx_lock(&softc->ctl_lock); 10024 STAILQ_FOREACH(port, &softc->port_list, links) { 10025 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10026 continue; 10027 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 10028 CTL_MAX_LUNS) 10029 continue; 10030 num_target_ports++; 10031 if (port->init_devid) 10032 iid_len += port->init_devid->len; 10033 if (port->port_devid) 10034 id_len += port->port_devid->len; 10035 } 10036 mtx_unlock(&softc->ctl_lock); 10037 10038 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10039 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10040 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10041 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10042 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10043 ctsio->kern_sg_entries = 0; 10044 10045 if (data_len < alloc_len) { 10046 ctsio->residual = alloc_len - data_len; 10047 ctsio->kern_data_len = data_len; 10048 ctsio->kern_total_len = data_len; 10049 } else { 10050 ctsio->residual = 0; 10051 ctsio->kern_data_len = alloc_len; 10052 ctsio->kern_total_len = alloc_len; 10053 } 10054 ctsio->kern_data_resid = 0; 10055 ctsio->kern_rel_offset = 0; 10056 ctsio->kern_sg_entries = 0; 10057 10058 /* 10059 * The control device is always connected. The disk device, on the 10060 * other hand, may not be online all the time. Need to change this 10061 * to figure out whether the disk device is actually online or not. 10062 */ 10063 if (lun != NULL) 10064 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10065 lun->be_lun->lun_type; 10066 else 10067 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10068 10069 sp->page_code = SVPD_SCSI_PORTS; 10070 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10071 sp->page_length); 10072 pd = &sp->design[0]; 10073 10074 mtx_lock(&softc->ctl_lock); 10075 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10076 pg = 0; 10077 else 10078 pg = 1; 10079 for (g = 0; g < num_target_port_groups; g++) { 10080 STAILQ_FOREACH(port, &softc->port_list, links) { 10081 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10082 continue; 10083 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 10084 CTL_MAX_LUNS) 10085 continue; 10086 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10087 scsi_ulto2b(p, pd->relative_port_id); 10088 if (port->init_devid && g == pg) { 10089 iid_len = port->init_devid->len; 10090 memcpy(pd->initiator_transportid, 10091 port->init_devid->data, port->init_devid->len); 10092 } else 10093 iid_len = 0; 10094 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10095 pdc = (struct scsi_vpd_port_designation_cont *) 10096 (&pd->initiator_transportid[iid_len]); 10097 if (port->port_devid && g == pg) { 10098 id_len = port->port_devid->len; 10099 memcpy(pdc->target_port_descriptors, 10100 port->port_devid->data, port->port_devid->len); 10101 } else 10102 id_len = 0; 10103 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10104 pd = (struct scsi_vpd_port_designation *) 10105 ((uint8_t *)pdc->target_port_descriptors + id_len); 10106 } 10107 } 10108 mtx_unlock(&softc->ctl_lock); 10109 10110 ctsio->scsi_status = SCSI_STATUS_OK; 10111 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10112 ctsio->be_move_done = ctl_config_move_done; 10113 ctl_datamove((union ctl_io *)ctsio); 10114 10115 return (CTL_RETVAL_COMPLETE); 10116 } 10117 10118 static int 10119 ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10120 { 10121 struct scsi_vpd_block_limits *bl_ptr; 10122 struct ctl_lun *lun; 10123 int bs; 10124 10125 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10126 bs = lun->be_lun->blocksize; 10127 10128 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10129 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10130 ctsio->kern_sg_entries = 0; 10131 10132 if (sizeof(*bl_ptr) < alloc_len) { 10133 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10134 ctsio->kern_data_len = sizeof(*bl_ptr); 10135 ctsio->kern_total_len = sizeof(*bl_ptr); 10136 } else { 10137 ctsio->residual = 0; 10138 ctsio->kern_data_len = alloc_len; 10139 ctsio->kern_total_len = alloc_len; 10140 } 10141 ctsio->kern_data_resid = 0; 10142 ctsio->kern_rel_offset = 0; 10143 ctsio->kern_sg_entries = 0; 10144 10145 /* 10146 * The control device is always connected. The disk device, on the 10147 * other hand, may not be online all the time. Need to change this 10148 * to figure out whether the disk device is actually online or not. 10149 */ 10150 if (lun != NULL) 10151 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10152 lun->be_lun->lun_type; 10153 else 10154 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10155 10156 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10157 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10158 bl_ptr->max_cmp_write_len = 0xff; 10159 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10160 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10161 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10162 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10163 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10164 } 10165 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10166 10167 ctsio->scsi_status = SCSI_STATUS_OK; 10168 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10169 ctsio->be_move_done = ctl_config_move_done; 10170 ctl_datamove((union ctl_io *)ctsio); 10171 10172 return (CTL_RETVAL_COMPLETE); 10173 } 10174 10175 static int 10176 ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10177 { 10178 struct scsi_vpd_logical_block_prov *lbp_ptr; 10179 struct ctl_lun *lun; 10180 int bs; 10181 10182 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10183 bs = lun->be_lun->blocksize; 10184 10185 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10186 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10187 ctsio->kern_sg_entries = 0; 10188 10189 if (sizeof(*lbp_ptr) < alloc_len) { 10190 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10191 ctsio->kern_data_len = sizeof(*lbp_ptr); 10192 ctsio->kern_total_len = sizeof(*lbp_ptr); 10193 } else { 10194 ctsio->residual = 0; 10195 ctsio->kern_data_len = alloc_len; 10196 ctsio->kern_total_len = alloc_len; 10197 } 10198 ctsio->kern_data_resid = 0; 10199 ctsio->kern_rel_offset = 0; 10200 ctsio->kern_sg_entries = 0; 10201 10202 /* 10203 * The control device is always connected. The disk device, on the 10204 * other hand, may not be online all the time. Need to change this 10205 * to figure out whether the disk device is actually online or not. 10206 */ 10207 if (lun != NULL) 10208 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10209 lun->be_lun->lun_type; 10210 else 10211 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10212 10213 lbp_ptr->page_code = SVPD_LBP; 10214 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 10215 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | SVPD_LBP_WS10; 10216 10217 ctsio->scsi_status = SCSI_STATUS_OK; 10218 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10219 ctsio->be_move_done = ctl_config_move_done; 10220 ctl_datamove((union ctl_io *)ctsio); 10221 10222 return (CTL_RETVAL_COMPLETE); 10223 } 10224 10225 static int 10226 ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10227 { 10228 struct scsi_inquiry *cdb; 10229 struct ctl_lun *lun; 10230 int alloc_len, retval; 10231 10232 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10233 cdb = (struct scsi_inquiry *)ctsio->cdb; 10234 10235 retval = CTL_RETVAL_COMPLETE; 10236 10237 alloc_len = scsi_2btoul(cdb->length); 10238 10239 switch (cdb->page_code) { 10240 case SVPD_SUPPORTED_PAGES: 10241 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10242 break; 10243 case SVPD_UNIT_SERIAL_NUMBER: 10244 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10245 break; 10246 case SVPD_DEVICE_ID: 10247 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10248 break; 10249 case SVPD_SCSI_PORTS: 10250 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10251 break; 10252 case SVPD_SCSI_TPC: 10253 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10254 break; 10255 case SVPD_BLOCK_LIMITS: 10256 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10257 break; 10258 case SVPD_LBP: 10259 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10260 break; 10261 default: 10262 ctl_set_invalid_field(ctsio, 10263 /*sks_valid*/ 1, 10264 /*command*/ 1, 10265 /*field*/ 2, 10266 /*bit_valid*/ 0, 10267 /*bit*/ 0); 10268 ctl_done((union ctl_io *)ctsio); 10269 retval = CTL_RETVAL_COMPLETE; 10270 break; 10271 } 10272 10273 return (retval); 10274 } 10275 10276 static int 10277 ctl_inquiry_std(struct ctl_scsiio *ctsio) 10278 { 10279 struct scsi_inquiry_data *inq_ptr; 10280 struct scsi_inquiry *cdb; 10281 struct ctl_softc *ctl_softc; 10282 struct ctl_lun *lun; 10283 char *val; 10284 uint32_t alloc_len; 10285 ctl_port_type port_type; 10286 10287 ctl_softc = control_softc; 10288 10289 /* 10290 * Figure out whether we're talking to a Fibre Channel port or not. 10291 * We treat the ioctl front end, and any SCSI adapters, as packetized 10292 * SCSI front ends. 10293 */ 10294 port_type = ctl_softc->ctl_ports[ 10295 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10296 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10297 port_type = CTL_PORT_SCSI; 10298 10299 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10300 cdb = (struct scsi_inquiry *)ctsio->cdb; 10301 alloc_len = scsi_2btoul(cdb->length); 10302 10303 /* 10304 * We malloc the full inquiry data size here and fill it 10305 * in. If the user only asks for less, we'll give him 10306 * that much. 10307 */ 10308 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10309 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10310 ctsio->kern_sg_entries = 0; 10311 ctsio->kern_data_resid = 0; 10312 ctsio->kern_rel_offset = 0; 10313 10314 if (sizeof(*inq_ptr) < alloc_len) { 10315 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10316 ctsio->kern_data_len = sizeof(*inq_ptr); 10317 ctsio->kern_total_len = sizeof(*inq_ptr); 10318 } else { 10319 ctsio->residual = 0; 10320 ctsio->kern_data_len = alloc_len; 10321 ctsio->kern_total_len = alloc_len; 10322 } 10323 10324 /* 10325 * If we have a LUN configured, report it as connected. Otherwise, 10326 * report that it is offline or no device is supported, depending 10327 * on the value of inquiry_pq_no_lun. 10328 * 10329 * According to the spec (SPC-4 r34), the peripheral qualifier 10330 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10331 * 10332 * "A peripheral device having the specified peripheral device type 10333 * is not connected to this logical unit. However, the device 10334 * server is capable of supporting the specified peripheral device 10335 * type on this logical unit." 10336 * 10337 * According to the same spec, the peripheral qualifier 10338 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10339 * 10340 * "The device server is not capable of supporting a peripheral 10341 * device on this logical unit. For this peripheral qualifier the 10342 * peripheral device type shall be set to 1Fh. All other peripheral 10343 * device type values are reserved for this peripheral qualifier." 10344 * 10345 * Given the text, it would seem that we probably want to report that 10346 * the LUN is offline here. There is no LUN connected, but we can 10347 * support a LUN at the given LUN number. 10348 * 10349 * In the real world, though, it sounds like things are a little 10350 * different: 10351 * 10352 * - Linux, when presented with a LUN with the offline peripheral 10353 * qualifier, will create an sg driver instance for it. So when 10354 * you attach it to CTL, you wind up with a ton of sg driver 10355 * instances. (One for every LUN that Linux bothered to probe.) 10356 * Linux does this despite the fact that it issues a REPORT LUNs 10357 * to LUN 0 to get the inventory of supported LUNs. 10358 * 10359 * - There is other anecdotal evidence (from Emulex folks) about 10360 * arrays that use the offline peripheral qualifier for LUNs that 10361 * are on the "passive" path in an active/passive array. 10362 * 10363 * So the solution is provide a hopefully reasonable default 10364 * (return bad/no LUN) and allow the user to change the behavior 10365 * with a tunable/sysctl variable. 10366 */ 10367 if (lun != NULL) 10368 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10369 lun->be_lun->lun_type; 10370 else if (ctl_softc->inquiry_pq_no_lun == 0) 10371 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10372 else 10373 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10374 10375 /* RMB in byte 2 is 0 */ 10376 inq_ptr->version = SCSI_REV_SPC4; 10377 10378 /* 10379 * According to SAM-3, even if a device only supports a single 10380 * level of LUN addressing, it should still set the HISUP bit: 10381 * 10382 * 4.9.1 Logical unit numbers overview 10383 * 10384 * All logical unit number formats described in this standard are 10385 * hierarchical in structure even when only a single level in that 10386 * hierarchy is used. The HISUP bit shall be set to one in the 10387 * standard INQUIRY data (see SPC-2) when any logical unit number 10388 * format described in this standard is used. Non-hierarchical 10389 * formats are outside the scope of this standard. 10390 * 10391 * Therefore we set the HiSup bit here. 10392 * 10393 * The reponse format is 2, per SPC-3. 10394 */ 10395 inq_ptr->response_format = SID_HiSup | 2; 10396 10397 inq_ptr->additional_length = sizeof(*inq_ptr) - 4; 10398 CTL_DEBUG_PRINT(("additional_length = %d\n", 10399 inq_ptr->additional_length)); 10400 10401 inq_ptr->spc3_flags = SPC3_SID_3PC; 10402 if (!ctl_is_single) 10403 inq_ptr->spc3_flags |= SPC3_SID_TPGS_IMPLICIT; 10404 /* 16 bit addressing */ 10405 if (port_type == CTL_PORT_SCSI) 10406 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10407 /* XXX set the SID_MultiP bit here if we're actually going to 10408 respond on multiple ports */ 10409 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10410 10411 /* 16 bit data bus, synchronous transfers */ 10412 if (port_type == CTL_PORT_SCSI) 10413 inq_ptr->flags = SID_WBus16 | SID_Sync; 10414 /* 10415 * XXX KDM do we want to support tagged queueing on the control 10416 * device at all? 10417 */ 10418 if ((lun == NULL) 10419 || (lun->be_lun->lun_type != T_PROCESSOR)) 10420 inq_ptr->flags |= SID_CmdQue; 10421 /* 10422 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10423 * We have 8 bytes for the vendor name, and 16 bytes for the device 10424 * name and 4 bytes for the revision. 10425 */ 10426 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10427 "vendor")) == NULL) { 10428 strcpy(inq_ptr->vendor, CTL_VENDOR); 10429 } else { 10430 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10431 strncpy(inq_ptr->vendor, val, 10432 min(sizeof(inq_ptr->vendor), strlen(val))); 10433 } 10434 if (lun == NULL) { 10435 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10436 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10437 switch (lun->be_lun->lun_type) { 10438 case T_DIRECT: 10439 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10440 break; 10441 case T_PROCESSOR: 10442 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10443 break; 10444 default: 10445 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10446 break; 10447 } 10448 } else { 10449 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10450 strncpy(inq_ptr->product, val, 10451 min(sizeof(inq_ptr->product), strlen(val))); 10452 } 10453 10454 /* 10455 * XXX make this a macro somewhere so it automatically gets 10456 * incremented when we make changes. 10457 */ 10458 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10459 "revision")) == NULL) { 10460 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10461 } else { 10462 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10463 strncpy(inq_ptr->revision, val, 10464 min(sizeof(inq_ptr->revision), strlen(val))); 10465 } 10466 10467 /* 10468 * For parallel SCSI, we support double transition and single 10469 * transition clocking. We also support QAS (Quick Arbitration 10470 * and Selection) and Information Unit transfers on both the 10471 * control and array devices. 10472 */ 10473 if (port_type == CTL_PORT_SCSI) 10474 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10475 SID_SPI_IUS; 10476 10477 /* SAM-5 (no version claimed) */ 10478 scsi_ulto2b(0x00A0, inq_ptr->version1); 10479 /* SPC-4 (no version claimed) */ 10480 scsi_ulto2b(0x0460, inq_ptr->version2); 10481 if (port_type == CTL_PORT_FC) { 10482 /* FCP-2 ANSI INCITS.350:2003 */ 10483 scsi_ulto2b(0x0917, inq_ptr->version3); 10484 } else if (port_type == CTL_PORT_SCSI) { 10485 /* SPI-4 ANSI INCITS.362:200x */ 10486 scsi_ulto2b(0x0B56, inq_ptr->version3); 10487 } else if (port_type == CTL_PORT_ISCSI) { 10488 /* iSCSI (no version claimed) */ 10489 scsi_ulto2b(0x0960, inq_ptr->version3); 10490 } else if (port_type == CTL_PORT_SAS) { 10491 /* SAS (no version claimed) */ 10492 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10493 } 10494 10495 if (lun == NULL) { 10496 /* SBC-3 (no version claimed) */ 10497 scsi_ulto2b(0x04C0, inq_ptr->version4); 10498 } else { 10499 switch (lun->be_lun->lun_type) { 10500 case T_DIRECT: 10501 /* SBC-3 (no version claimed) */ 10502 scsi_ulto2b(0x04C0, inq_ptr->version4); 10503 break; 10504 case T_PROCESSOR: 10505 default: 10506 break; 10507 } 10508 } 10509 10510 ctsio->scsi_status = SCSI_STATUS_OK; 10511 if (ctsio->kern_data_len > 0) { 10512 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10513 ctsio->be_move_done = ctl_config_move_done; 10514 ctl_datamove((union ctl_io *)ctsio); 10515 } else { 10516 ctsio->io_hdr.status = CTL_SUCCESS; 10517 ctl_done((union ctl_io *)ctsio); 10518 } 10519 10520 return (CTL_RETVAL_COMPLETE); 10521 } 10522 10523 int 10524 ctl_inquiry(struct ctl_scsiio *ctsio) 10525 { 10526 struct scsi_inquiry *cdb; 10527 int retval; 10528 10529 cdb = (struct scsi_inquiry *)ctsio->cdb; 10530 10531 retval = 0; 10532 10533 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10534 10535 /* 10536 * Right now, we don't support the CmdDt inquiry information. 10537 * This would be nice to support in the future. When we do 10538 * support it, we should change this test so that it checks to make 10539 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10540 */ 10541 #ifdef notyet 10542 if (((cdb->byte2 & SI_EVPD) 10543 && (cdb->byte2 & SI_CMDDT))) 10544 #endif 10545 if (cdb->byte2 & SI_CMDDT) { 10546 /* 10547 * Point to the SI_CMDDT bit. We might change this 10548 * when we support SI_CMDDT, but since both bits would be 10549 * "wrong", this should probably just stay as-is then. 10550 */ 10551 ctl_set_invalid_field(ctsio, 10552 /*sks_valid*/ 1, 10553 /*command*/ 1, 10554 /*field*/ 1, 10555 /*bit_valid*/ 1, 10556 /*bit*/ 1); 10557 ctl_done((union ctl_io *)ctsio); 10558 return (CTL_RETVAL_COMPLETE); 10559 } 10560 if (cdb->byte2 & SI_EVPD) 10561 retval = ctl_inquiry_evpd(ctsio); 10562 #ifdef notyet 10563 else if (cdb->byte2 & SI_CMDDT) 10564 retval = ctl_inquiry_cmddt(ctsio); 10565 #endif 10566 else 10567 retval = ctl_inquiry_std(ctsio); 10568 10569 return (retval); 10570 } 10571 10572 /* 10573 * For known CDB types, parse the LBA and length. 10574 */ 10575 static int 10576 ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10577 { 10578 if (io->io_hdr.io_type != CTL_IO_SCSI) 10579 return (1); 10580 10581 switch (io->scsiio.cdb[0]) { 10582 case COMPARE_AND_WRITE: { 10583 struct scsi_compare_and_write *cdb; 10584 10585 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10586 10587 *lba = scsi_8btou64(cdb->addr); 10588 *len = cdb->length; 10589 break; 10590 } 10591 case READ_6: 10592 case WRITE_6: { 10593 struct scsi_rw_6 *cdb; 10594 10595 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10596 10597 *lba = scsi_3btoul(cdb->addr); 10598 /* only 5 bits are valid in the most significant address byte */ 10599 *lba &= 0x1fffff; 10600 *len = cdb->length; 10601 break; 10602 } 10603 case READ_10: 10604 case WRITE_10: { 10605 struct scsi_rw_10 *cdb; 10606 10607 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10608 10609 *lba = scsi_4btoul(cdb->addr); 10610 *len = scsi_2btoul(cdb->length); 10611 break; 10612 } 10613 case WRITE_VERIFY_10: { 10614 struct scsi_write_verify_10 *cdb; 10615 10616 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10617 10618 *lba = scsi_4btoul(cdb->addr); 10619 *len = scsi_2btoul(cdb->length); 10620 break; 10621 } 10622 case READ_12: 10623 case WRITE_12: { 10624 struct scsi_rw_12 *cdb; 10625 10626 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10627 10628 *lba = scsi_4btoul(cdb->addr); 10629 *len = scsi_4btoul(cdb->length); 10630 break; 10631 } 10632 case WRITE_VERIFY_12: { 10633 struct scsi_write_verify_12 *cdb; 10634 10635 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10636 10637 *lba = scsi_4btoul(cdb->addr); 10638 *len = scsi_4btoul(cdb->length); 10639 break; 10640 } 10641 case READ_16: 10642 case WRITE_16: { 10643 struct scsi_rw_16 *cdb; 10644 10645 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10646 10647 *lba = scsi_8btou64(cdb->addr); 10648 *len = scsi_4btoul(cdb->length); 10649 break; 10650 } 10651 case WRITE_VERIFY_16: { 10652 struct scsi_write_verify_16 *cdb; 10653 10654 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10655 10656 10657 *lba = scsi_8btou64(cdb->addr); 10658 *len = scsi_4btoul(cdb->length); 10659 break; 10660 } 10661 case WRITE_SAME_10: { 10662 struct scsi_write_same_10 *cdb; 10663 10664 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10665 10666 *lba = scsi_4btoul(cdb->addr); 10667 *len = scsi_2btoul(cdb->length); 10668 break; 10669 } 10670 case WRITE_SAME_16: { 10671 struct scsi_write_same_16 *cdb; 10672 10673 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10674 10675 *lba = scsi_8btou64(cdb->addr); 10676 *len = scsi_4btoul(cdb->length); 10677 break; 10678 } 10679 case VERIFY_10: { 10680 struct scsi_verify_10 *cdb; 10681 10682 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10683 10684 *lba = scsi_4btoul(cdb->addr); 10685 *len = scsi_2btoul(cdb->length); 10686 break; 10687 } 10688 case VERIFY_12: { 10689 struct scsi_verify_12 *cdb; 10690 10691 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10692 10693 *lba = scsi_4btoul(cdb->addr); 10694 *len = scsi_4btoul(cdb->length); 10695 break; 10696 } 10697 case VERIFY_16: { 10698 struct scsi_verify_16 *cdb; 10699 10700 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10701 10702 *lba = scsi_8btou64(cdb->addr); 10703 *len = scsi_4btoul(cdb->length); 10704 break; 10705 } 10706 default: 10707 return (1); 10708 break; /* NOTREACHED */ 10709 } 10710 10711 return (0); 10712 } 10713 10714 static ctl_action 10715 ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10716 { 10717 uint64_t endlba1, endlba2; 10718 10719 endlba1 = lba1 + len1 - 1; 10720 endlba2 = lba2 + len2 - 1; 10721 10722 if ((endlba1 < lba2) 10723 || (endlba2 < lba1)) 10724 return (CTL_ACTION_PASS); 10725 else 10726 return (CTL_ACTION_BLOCK); 10727 } 10728 10729 static ctl_action 10730 ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10731 { 10732 uint64_t lba1, lba2; 10733 uint32_t len1, len2; 10734 int retval; 10735 10736 retval = ctl_get_lba_len(io1, &lba1, &len1); 10737 if (retval != 0) 10738 return (CTL_ACTION_ERROR); 10739 10740 retval = ctl_get_lba_len(io2, &lba2, &len2); 10741 if (retval != 0) 10742 return (CTL_ACTION_ERROR); 10743 10744 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10745 } 10746 10747 static ctl_action 10748 ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10749 { 10750 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10751 ctl_serialize_action *serialize_row; 10752 10753 /* 10754 * The initiator attempted multiple untagged commands at the same 10755 * time. Can't do that. 10756 */ 10757 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10758 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10759 && ((pending_io->io_hdr.nexus.targ_port == 10760 ooa_io->io_hdr.nexus.targ_port) 10761 && (pending_io->io_hdr.nexus.initid.id == 10762 ooa_io->io_hdr.nexus.initid.id)) 10763 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10764 return (CTL_ACTION_OVERLAP); 10765 10766 /* 10767 * The initiator attempted to send multiple tagged commands with 10768 * the same ID. (It's fine if different initiators have the same 10769 * tag ID.) 10770 * 10771 * Even if all of those conditions are true, we don't kill the I/O 10772 * if the command ahead of us has been aborted. We won't end up 10773 * sending it to the FETD, and it's perfectly legal to resend a 10774 * command with the same tag number as long as the previous 10775 * instance of this tag number has been aborted somehow. 10776 */ 10777 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10778 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10779 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10780 && ((pending_io->io_hdr.nexus.targ_port == 10781 ooa_io->io_hdr.nexus.targ_port) 10782 && (pending_io->io_hdr.nexus.initid.id == 10783 ooa_io->io_hdr.nexus.initid.id)) 10784 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10785 return (CTL_ACTION_OVERLAP_TAG); 10786 10787 /* 10788 * If we get a head of queue tag, SAM-3 says that we should 10789 * immediately execute it. 10790 * 10791 * What happens if this command would normally block for some other 10792 * reason? e.g. a request sense with a head of queue tag 10793 * immediately after a write. Normally that would block, but this 10794 * will result in its getting executed immediately... 10795 * 10796 * We currently return "pass" instead of "skip", so we'll end up 10797 * going through the rest of the queue to check for overlapped tags. 10798 * 10799 * XXX KDM check for other types of blockage first?? 10800 */ 10801 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10802 return (CTL_ACTION_PASS); 10803 10804 /* 10805 * Ordered tags have to block until all items ahead of them 10806 * have completed. If we get called with an ordered tag, we always 10807 * block, if something else is ahead of us in the queue. 10808 */ 10809 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10810 return (CTL_ACTION_BLOCK); 10811 10812 /* 10813 * Simple tags get blocked until all head of queue and ordered tags 10814 * ahead of them have completed. I'm lumping untagged commands in 10815 * with simple tags here. XXX KDM is that the right thing to do? 10816 */ 10817 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10818 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10819 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10820 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10821 return (CTL_ACTION_BLOCK); 10822 10823 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10824 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10825 10826 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10827 10828 switch (serialize_row[pending_entry->seridx]) { 10829 case CTL_SER_BLOCK: 10830 return (CTL_ACTION_BLOCK); 10831 break; /* NOTREACHED */ 10832 case CTL_SER_EXTENT: 10833 return (ctl_extent_check(pending_io, ooa_io)); 10834 break; /* NOTREACHED */ 10835 case CTL_SER_PASS: 10836 return (CTL_ACTION_PASS); 10837 break; /* NOTREACHED */ 10838 case CTL_SER_SKIP: 10839 return (CTL_ACTION_SKIP); 10840 break; 10841 default: 10842 panic("invalid serialization value %d", 10843 serialize_row[pending_entry->seridx]); 10844 break; /* NOTREACHED */ 10845 } 10846 10847 return (CTL_ACTION_ERROR); 10848 } 10849 10850 /* 10851 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10852 * Assumptions: 10853 * - pending_io is generally either incoming, or on the blocked queue 10854 * - starting I/O is the I/O we want to start the check with. 10855 */ 10856 static ctl_action 10857 ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10858 union ctl_io *starting_io) 10859 { 10860 union ctl_io *ooa_io; 10861 ctl_action action; 10862 10863 mtx_assert(&lun->lun_lock, MA_OWNED); 10864 10865 /* 10866 * Run back along the OOA queue, starting with the current 10867 * blocked I/O and going through every I/O before it on the 10868 * queue. If starting_io is NULL, we'll just end up returning 10869 * CTL_ACTION_PASS. 10870 */ 10871 for (ooa_io = starting_io; ooa_io != NULL; 10872 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10873 ooa_links)){ 10874 10875 /* 10876 * This routine just checks to see whether 10877 * cur_blocked is blocked by ooa_io, which is ahead 10878 * of it in the queue. It doesn't queue/dequeue 10879 * cur_blocked. 10880 */ 10881 action = ctl_check_for_blockage(pending_io, ooa_io); 10882 switch (action) { 10883 case CTL_ACTION_BLOCK: 10884 case CTL_ACTION_OVERLAP: 10885 case CTL_ACTION_OVERLAP_TAG: 10886 case CTL_ACTION_SKIP: 10887 case CTL_ACTION_ERROR: 10888 return (action); 10889 break; /* NOTREACHED */ 10890 case CTL_ACTION_PASS: 10891 break; 10892 default: 10893 panic("invalid action %d", action); 10894 break; /* NOTREACHED */ 10895 } 10896 } 10897 10898 return (CTL_ACTION_PASS); 10899 } 10900 10901 /* 10902 * Assumptions: 10903 * - An I/O has just completed, and has been removed from the per-LUN OOA 10904 * queue, so some items on the blocked queue may now be unblocked. 10905 */ 10906 static int 10907 ctl_check_blocked(struct ctl_lun *lun) 10908 { 10909 union ctl_io *cur_blocked, *next_blocked; 10910 10911 mtx_assert(&lun->lun_lock, MA_OWNED); 10912 10913 /* 10914 * Run forward from the head of the blocked queue, checking each 10915 * entry against the I/Os prior to it on the OOA queue to see if 10916 * there is still any blockage. 10917 * 10918 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10919 * with our removing a variable on it while it is traversing the 10920 * list. 10921 */ 10922 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10923 cur_blocked != NULL; cur_blocked = next_blocked) { 10924 union ctl_io *prev_ooa; 10925 ctl_action action; 10926 10927 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10928 blocked_links); 10929 10930 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10931 ctl_ooaq, ooa_links); 10932 10933 /* 10934 * If cur_blocked happens to be the first item in the OOA 10935 * queue now, prev_ooa will be NULL, and the action 10936 * returned will just be CTL_ACTION_PASS. 10937 */ 10938 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10939 10940 switch (action) { 10941 case CTL_ACTION_BLOCK: 10942 /* Nothing to do here, still blocked */ 10943 break; 10944 case CTL_ACTION_OVERLAP: 10945 case CTL_ACTION_OVERLAP_TAG: 10946 /* 10947 * This shouldn't happen! In theory we've already 10948 * checked this command for overlap... 10949 */ 10950 break; 10951 case CTL_ACTION_PASS: 10952 case CTL_ACTION_SKIP: { 10953 struct ctl_softc *softc; 10954 const struct ctl_cmd_entry *entry; 10955 uint32_t initidx; 10956 int isc_retval; 10957 10958 /* 10959 * The skip case shouldn't happen, this transaction 10960 * should have never made it onto the blocked queue. 10961 */ 10962 /* 10963 * This I/O is no longer blocked, we can remove it 10964 * from the blocked queue. Since this is a TAILQ 10965 * (doubly linked list), we can do O(1) removals 10966 * from any place on the list. 10967 */ 10968 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10969 blocked_links); 10970 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10971 10972 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10973 /* 10974 * Need to send IO back to original side to 10975 * run 10976 */ 10977 union ctl_ha_msg msg_info; 10978 10979 msg_info.hdr.original_sc = 10980 cur_blocked->io_hdr.original_sc; 10981 msg_info.hdr.serializing_sc = cur_blocked; 10982 msg_info.hdr.msg_type = CTL_MSG_R2R; 10983 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10984 &msg_info, sizeof(msg_info), 0)) > 10985 CTL_HA_STATUS_SUCCESS) { 10986 printf("CTL:Check Blocked error from " 10987 "ctl_ha_msg_send %d\n", 10988 isc_retval); 10989 } 10990 break; 10991 } 10992 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 10993 softc = control_softc; 10994 10995 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 10996 10997 /* 10998 * Check this I/O for LUN state changes that may 10999 * have happened while this command was blocked. 11000 * The LUN state may have been changed by a command 11001 * ahead of us in the queue, so we need to re-check 11002 * for any states that can be caused by SCSI 11003 * commands. 11004 */ 11005 if (ctl_scsiio_lun_check(softc, lun, entry, 11006 &cur_blocked->scsiio) == 0) { 11007 cur_blocked->io_hdr.flags |= 11008 CTL_FLAG_IS_WAS_ON_RTR; 11009 ctl_enqueue_rtr(cur_blocked); 11010 } else 11011 ctl_done(cur_blocked); 11012 break; 11013 } 11014 default: 11015 /* 11016 * This probably shouldn't happen -- we shouldn't 11017 * get CTL_ACTION_ERROR, or anything else. 11018 */ 11019 break; 11020 } 11021 } 11022 11023 return (CTL_RETVAL_COMPLETE); 11024 } 11025 11026 /* 11027 * This routine (with one exception) checks LUN flags that can be set by 11028 * commands ahead of us in the OOA queue. These flags have to be checked 11029 * when a command initially comes in, and when we pull a command off the 11030 * blocked queue and are preparing to execute it. The reason we have to 11031 * check these flags for commands on the blocked queue is that the LUN 11032 * state may have been changed by a command ahead of us while we're on the 11033 * blocked queue. 11034 * 11035 * Ordering is somewhat important with these checks, so please pay 11036 * careful attention to the placement of any new checks. 11037 */ 11038 static int 11039 ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11040 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11041 { 11042 int retval; 11043 11044 retval = 0; 11045 11046 mtx_assert(&lun->lun_lock, MA_OWNED); 11047 11048 /* 11049 * If this shelf is a secondary shelf controller, we have to reject 11050 * any media access commands. 11051 */ 11052 #if 0 11053 /* No longer needed for HA */ 11054 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11055 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11056 ctl_set_lun_standby(ctsio); 11057 retval = 1; 11058 goto bailout; 11059 } 11060 #endif 11061 11062 /* 11063 * Check for a reservation conflict. If this command isn't allowed 11064 * even on reserved LUNs, and if this initiator isn't the one who 11065 * reserved us, reject the command with a reservation conflict. 11066 */ 11067 if ((lun->flags & CTL_LUN_RESERVED) 11068 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11069 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11070 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11071 || (ctsio->io_hdr.nexus.targ_target.id != 11072 lun->rsv_nexus.targ_target.id)) { 11073 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11074 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11075 retval = 1; 11076 goto bailout; 11077 } 11078 } 11079 11080 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11081 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11082 uint32_t residx; 11083 11084 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11085 /* 11086 * if we aren't registered or it's a res holder type 11087 * reservation and this isn't the res holder then set a 11088 * conflict. 11089 * NOTE: Commands which might be allowed on write exclusive 11090 * type reservations are checked in the particular command 11091 * for a conflict. Read and SSU are the only ones. 11092 */ 11093 if (!lun->per_res[residx].registered 11094 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11095 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11096 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11097 retval = 1; 11098 goto bailout; 11099 } 11100 11101 } 11102 11103 if ((lun->flags & CTL_LUN_OFFLINE) 11104 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11105 ctl_set_lun_not_ready(ctsio); 11106 retval = 1; 11107 goto bailout; 11108 } 11109 11110 /* 11111 * If the LUN is stopped, see if this particular command is allowed 11112 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11113 */ 11114 if ((lun->flags & CTL_LUN_STOPPED) 11115 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11116 /* "Logical unit not ready, initializing cmd. required" */ 11117 ctl_set_lun_stopped(ctsio); 11118 retval = 1; 11119 goto bailout; 11120 } 11121 11122 if ((lun->flags & CTL_LUN_INOPERABLE) 11123 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11124 /* "Medium format corrupted" */ 11125 ctl_set_medium_format_corrupted(ctsio); 11126 retval = 1; 11127 goto bailout; 11128 } 11129 11130 bailout: 11131 return (retval); 11132 11133 } 11134 11135 static void 11136 ctl_failover_io(union ctl_io *io, int have_lock) 11137 { 11138 ctl_set_busy(&io->scsiio); 11139 ctl_done(io); 11140 } 11141 11142 static void 11143 ctl_failover(void) 11144 { 11145 struct ctl_lun *lun; 11146 struct ctl_softc *ctl_softc; 11147 union ctl_io *next_io, *pending_io; 11148 union ctl_io *io; 11149 int lun_idx; 11150 int i; 11151 11152 ctl_softc = control_softc; 11153 11154 mtx_lock(&ctl_softc->ctl_lock); 11155 /* 11156 * Remove any cmds from the other SC from the rtr queue. These 11157 * will obviously only be for LUNs for which we're the primary. 11158 * We can't send status or get/send data for these commands. 11159 * Since they haven't been executed yet, we can just remove them. 11160 * We'll either abort them or delete them below, depending on 11161 * which HA mode we're in. 11162 */ 11163 #ifdef notyet 11164 mtx_lock(&ctl_softc->queue_lock); 11165 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11166 io != NULL; io = next_io) { 11167 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11168 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11169 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11170 ctl_io_hdr, links); 11171 } 11172 mtx_unlock(&ctl_softc->queue_lock); 11173 #endif 11174 11175 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11176 lun = ctl_softc->ctl_luns[lun_idx]; 11177 if (lun==NULL) 11178 continue; 11179 11180 /* 11181 * Processor LUNs are primary on both sides. 11182 * XXX will this always be true? 11183 */ 11184 if (lun->be_lun->lun_type == T_PROCESSOR) 11185 continue; 11186 11187 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11188 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11189 printf("FAILOVER: primary lun %d\n", lun_idx); 11190 /* 11191 * Remove all commands from the other SC. First from the 11192 * blocked queue then from the ooa queue. Once we have 11193 * removed them. Call ctl_check_blocked to see if there 11194 * is anything that can run. 11195 */ 11196 for (io = (union ctl_io *)TAILQ_FIRST( 11197 &lun->blocked_queue); io != NULL; io = next_io) { 11198 11199 next_io = (union ctl_io *)TAILQ_NEXT( 11200 &io->io_hdr, blocked_links); 11201 11202 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11203 TAILQ_REMOVE(&lun->blocked_queue, 11204 &io->io_hdr,blocked_links); 11205 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11206 TAILQ_REMOVE(&lun->ooa_queue, 11207 &io->io_hdr, ooa_links); 11208 11209 ctl_free_io(io); 11210 } 11211 } 11212 11213 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11214 io != NULL; io = next_io) { 11215 11216 next_io = (union ctl_io *)TAILQ_NEXT( 11217 &io->io_hdr, ooa_links); 11218 11219 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11220 11221 TAILQ_REMOVE(&lun->ooa_queue, 11222 &io->io_hdr, 11223 ooa_links); 11224 11225 ctl_free_io(io); 11226 } 11227 } 11228 ctl_check_blocked(lun); 11229 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11230 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11231 11232 printf("FAILOVER: primary lun %d\n", lun_idx); 11233 /* 11234 * Abort all commands from the other SC. We can't 11235 * send status back for them now. These should get 11236 * cleaned up when they are completed or come out 11237 * for a datamove operation. 11238 */ 11239 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11240 io != NULL; io = next_io) { 11241 next_io = (union ctl_io *)TAILQ_NEXT( 11242 &io->io_hdr, ooa_links); 11243 11244 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11245 io->io_hdr.flags |= CTL_FLAG_ABORT; 11246 } 11247 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11248 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11249 11250 printf("FAILOVER: secondary lun %d\n", lun_idx); 11251 11252 lun->flags |= CTL_LUN_PRIMARY_SC; 11253 11254 /* 11255 * We send all I/O that was sent to this controller 11256 * and redirected to the other side back with 11257 * busy status, and have the initiator retry it. 11258 * Figuring out how much data has been transferred, 11259 * etc. and picking up where we left off would be 11260 * very tricky. 11261 * 11262 * XXX KDM need to remove I/O from the blocked 11263 * queue as well! 11264 */ 11265 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11266 &lun->ooa_queue); pending_io != NULL; 11267 pending_io = next_io) { 11268 11269 next_io = (union ctl_io *)TAILQ_NEXT( 11270 &pending_io->io_hdr, ooa_links); 11271 11272 pending_io->io_hdr.flags &= 11273 ~CTL_FLAG_SENT_2OTHER_SC; 11274 11275 if (pending_io->io_hdr.flags & 11276 CTL_FLAG_IO_ACTIVE) { 11277 pending_io->io_hdr.flags |= 11278 CTL_FLAG_FAILOVER; 11279 } else { 11280 ctl_set_busy(&pending_io->scsiio); 11281 ctl_done(pending_io); 11282 } 11283 } 11284 11285 /* 11286 * Build Unit Attention 11287 */ 11288 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11289 lun->pending_ua[i] |= 11290 CTL_UA_ASYM_ACC_CHANGE; 11291 } 11292 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11293 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11294 printf("FAILOVER: secondary lun %d\n", lun_idx); 11295 /* 11296 * if the first io on the OOA is not on the RtR queue 11297 * add it. 11298 */ 11299 lun->flags |= CTL_LUN_PRIMARY_SC; 11300 11301 pending_io = (union ctl_io *)TAILQ_FIRST( 11302 &lun->ooa_queue); 11303 if (pending_io==NULL) { 11304 printf("Nothing on OOA queue\n"); 11305 continue; 11306 } 11307 11308 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11309 if ((pending_io->io_hdr.flags & 11310 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11311 pending_io->io_hdr.flags |= 11312 CTL_FLAG_IS_WAS_ON_RTR; 11313 ctl_enqueue_rtr(pending_io); 11314 } 11315 #if 0 11316 else 11317 { 11318 printf("Tag 0x%04x is running\n", 11319 pending_io->scsiio.tag_num); 11320 } 11321 #endif 11322 11323 next_io = (union ctl_io *)TAILQ_NEXT( 11324 &pending_io->io_hdr, ooa_links); 11325 for (pending_io=next_io; pending_io != NULL; 11326 pending_io = next_io) { 11327 pending_io->io_hdr.flags &= 11328 ~CTL_FLAG_SENT_2OTHER_SC; 11329 next_io = (union ctl_io *)TAILQ_NEXT( 11330 &pending_io->io_hdr, ooa_links); 11331 if (pending_io->io_hdr.flags & 11332 CTL_FLAG_IS_WAS_ON_RTR) { 11333 #if 0 11334 printf("Tag 0x%04x is running\n", 11335 pending_io->scsiio.tag_num); 11336 #endif 11337 continue; 11338 } 11339 11340 switch (ctl_check_ooa(lun, pending_io, 11341 (union ctl_io *)TAILQ_PREV( 11342 &pending_io->io_hdr, ctl_ooaq, 11343 ooa_links))) { 11344 11345 case CTL_ACTION_BLOCK: 11346 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11347 &pending_io->io_hdr, 11348 blocked_links); 11349 pending_io->io_hdr.flags |= 11350 CTL_FLAG_BLOCKED; 11351 break; 11352 case CTL_ACTION_PASS: 11353 case CTL_ACTION_SKIP: 11354 pending_io->io_hdr.flags |= 11355 CTL_FLAG_IS_WAS_ON_RTR; 11356 ctl_enqueue_rtr(pending_io); 11357 break; 11358 case CTL_ACTION_OVERLAP: 11359 ctl_set_overlapped_cmd( 11360 (struct ctl_scsiio *)pending_io); 11361 ctl_done(pending_io); 11362 break; 11363 case CTL_ACTION_OVERLAP_TAG: 11364 ctl_set_overlapped_tag( 11365 (struct ctl_scsiio *)pending_io, 11366 pending_io->scsiio.tag_num & 0xff); 11367 ctl_done(pending_io); 11368 break; 11369 case CTL_ACTION_ERROR: 11370 default: 11371 ctl_set_internal_failure( 11372 (struct ctl_scsiio *)pending_io, 11373 0, // sks_valid 11374 0); //retry count 11375 ctl_done(pending_io); 11376 break; 11377 } 11378 } 11379 11380 /* 11381 * Build Unit Attention 11382 */ 11383 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11384 lun->pending_ua[i] |= 11385 CTL_UA_ASYM_ACC_CHANGE; 11386 } 11387 } else { 11388 panic("Unhandled HA mode failover, LUN flags = %#x, " 11389 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11390 } 11391 } 11392 ctl_pause_rtr = 0; 11393 mtx_unlock(&ctl_softc->ctl_lock); 11394 } 11395 11396 static int 11397 ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11398 { 11399 struct ctl_lun *lun; 11400 const struct ctl_cmd_entry *entry; 11401 uint32_t initidx, targ_lun; 11402 int retval; 11403 11404 retval = 0; 11405 11406 lun = NULL; 11407 11408 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11409 if ((targ_lun < CTL_MAX_LUNS) 11410 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11411 lun = ctl_softc->ctl_luns[targ_lun]; 11412 /* 11413 * If the LUN is invalid, pretend that it doesn't exist. 11414 * It will go away as soon as all pending I/O has been 11415 * completed. 11416 */ 11417 if (lun->flags & CTL_LUN_DISABLED) { 11418 lun = NULL; 11419 } else { 11420 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11421 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11422 lun->be_lun; 11423 if (lun->be_lun->lun_type == T_PROCESSOR) { 11424 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11425 } 11426 11427 /* 11428 * Every I/O goes into the OOA queue for a 11429 * particular LUN, and stays there until completion. 11430 */ 11431 mtx_lock(&lun->lun_lock); 11432 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11433 ooa_links); 11434 } 11435 } else { 11436 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11437 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11438 } 11439 11440 /* Get command entry and return error if it is unsuppotyed. */ 11441 entry = ctl_validate_command(ctsio); 11442 if (entry == NULL) { 11443 if (lun) 11444 mtx_unlock(&lun->lun_lock); 11445 return (retval); 11446 } 11447 11448 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11449 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11450 11451 /* 11452 * Check to see whether we can send this command to LUNs that don't 11453 * exist. This should pretty much only be the case for inquiry 11454 * and request sense. Further checks, below, really require having 11455 * a LUN, so we can't really check the command anymore. Just put 11456 * it on the rtr queue. 11457 */ 11458 if (lun == NULL) { 11459 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11460 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11461 ctl_enqueue_rtr((union ctl_io *)ctsio); 11462 return (retval); 11463 } 11464 11465 ctl_set_unsupported_lun(ctsio); 11466 ctl_done((union ctl_io *)ctsio); 11467 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11468 return (retval); 11469 } else { 11470 /* 11471 * Make sure we support this particular command on this LUN. 11472 * e.g., we don't support writes to the control LUN. 11473 */ 11474 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11475 mtx_unlock(&lun->lun_lock); 11476 ctl_set_invalid_opcode(ctsio); 11477 ctl_done((union ctl_io *)ctsio); 11478 return (retval); 11479 } 11480 } 11481 11482 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11483 11484 #ifdef CTL_WITH_CA 11485 /* 11486 * If we've got a request sense, it'll clear the contingent 11487 * allegiance condition. Otherwise, if we have a CA condition for 11488 * this initiator, clear it, because it sent down a command other 11489 * than request sense. 11490 */ 11491 if ((ctsio->cdb[0] != REQUEST_SENSE) 11492 && (ctl_is_set(lun->have_ca, initidx))) 11493 ctl_clear_mask(lun->have_ca, initidx); 11494 #endif 11495 11496 /* 11497 * If the command has this flag set, it handles its own unit 11498 * attention reporting, we shouldn't do anything. Otherwise we 11499 * check for any pending unit attentions, and send them back to the 11500 * initiator. We only do this when a command initially comes in, 11501 * not when we pull it off the blocked queue. 11502 * 11503 * According to SAM-3, section 5.3.2, the order that things get 11504 * presented back to the host is basically unit attentions caused 11505 * by some sort of reset event, busy status, reservation conflicts 11506 * or task set full, and finally any other status. 11507 * 11508 * One issue here is that some of the unit attentions we report 11509 * don't fall into the "reset" category (e.g. "reported luns data 11510 * has changed"). So reporting it here, before the reservation 11511 * check, may be technically wrong. I guess the only thing to do 11512 * would be to check for and report the reset events here, and then 11513 * check for the other unit attention types after we check for a 11514 * reservation conflict. 11515 * 11516 * XXX KDM need to fix this 11517 */ 11518 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11519 ctl_ua_type ua_type; 11520 11521 ua_type = lun->pending_ua[initidx]; 11522 if (ua_type != CTL_UA_NONE) { 11523 scsi_sense_data_type sense_format; 11524 11525 if (lun != NULL) 11526 sense_format = (lun->flags & 11527 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11528 SSD_TYPE_FIXED; 11529 else 11530 sense_format = SSD_TYPE_FIXED; 11531 11532 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11533 sense_format); 11534 if (ua_type != CTL_UA_NONE) { 11535 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11536 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11537 CTL_AUTOSENSE; 11538 ctsio->sense_len = SSD_FULL_SIZE; 11539 lun->pending_ua[initidx] &= ~ua_type; 11540 mtx_unlock(&lun->lun_lock); 11541 ctl_done((union ctl_io *)ctsio); 11542 return (retval); 11543 } 11544 } 11545 } 11546 11547 11548 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11549 mtx_unlock(&lun->lun_lock); 11550 ctl_done((union ctl_io *)ctsio); 11551 return (retval); 11552 } 11553 11554 /* 11555 * XXX CHD this is where we want to send IO to other side if 11556 * this LUN is secondary on this SC. We will need to make a copy 11557 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11558 * the copy we send as FROM_OTHER. 11559 * We also need to stuff the address of the original IO so we can 11560 * find it easily. Something similar will need be done on the other 11561 * side so when we are done we can find the copy. 11562 */ 11563 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11564 union ctl_ha_msg msg_info; 11565 int isc_retval; 11566 11567 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11568 11569 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11570 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11571 #if 0 11572 printf("1. ctsio %p\n", ctsio); 11573 #endif 11574 msg_info.hdr.serializing_sc = NULL; 11575 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11576 msg_info.scsi.tag_num = ctsio->tag_num; 11577 msg_info.scsi.tag_type = ctsio->tag_type; 11578 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11579 11580 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11581 11582 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11583 (void *)&msg_info, sizeof(msg_info), 0)) > 11584 CTL_HA_STATUS_SUCCESS) { 11585 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11586 isc_retval); 11587 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11588 } else { 11589 #if 0 11590 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11591 #endif 11592 } 11593 11594 /* 11595 * XXX KDM this I/O is off the incoming queue, but hasn't 11596 * been inserted on any other queue. We may need to come 11597 * up with a holding queue while we wait for serialization 11598 * so that we have an idea of what we're waiting for from 11599 * the other side. 11600 */ 11601 mtx_unlock(&lun->lun_lock); 11602 return (retval); 11603 } 11604 11605 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11606 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11607 ctl_ooaq, ooa_links))) { 11608 case CTL_ACTION_BLOCK: 11609 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11610 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11611 blocked_links); 11612 mtx_unlock(&lun->lun_lock); 11613 return (retval); 11614 case CTL_ACTION_PASS: 11615 case CTL_ACTION_SKIP: 11616 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11617 mtx_unlock(&lun->lun_lock); 11618 ctl_enqueue_rtr((union ctl_io *)ctsio); 11619 break; 11620 case CTL_ACTION_OVERLAP: 11621 mtx_unlock(&lun->lun_lock); 11622 ctl_set_overlapped_cmd(ctsio); 11623 ctl_done((union ctl_io *)ctsio); 11624 break; 11625 case CTL_ACTION_OVERLAP_TAG: 11626 mtx_unlock(&lun->lun_lock); 11627 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11628 ctl_done((union ctl_io *)ctsio); 11629 break; 11630 case CTL_ACTION_ERROR: 11631 default: 11632 mtx_unlock(&lun->lun_lock); 11633 ctl_set_internal_failure(ctsio, 11634 /*sks_valid*/ 0, 11635 /*retry_count*/ 0); 11636 ctl_done((union ctl_io *)ctsio); 11637 break; 11638 } 11639 return (retval); 11640 } 11641 11642 const struct ctl_cmd_entry * 11643 ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11644 { 11645 const struct ctl_cmd_entry *entry; 11646 int service_action; 11647 11648 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11649 if (entry->flags & CTL_CMD_FLAG_SA5) { 11650 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11651 entry = &((const struct ctl_cmd_entry *) 11652 entry->execute)[service_action]; 11653 } 11654 return (entry); 11655 } 11656 11657 const struct ctl_cmd_entry * 11658 ctl_validate_command(struct ctl_scsiio *ctsio) 11659 { 11660 const struct ctl_cmd_entry *entry; 11661 int i; 11662 uint8_t diff; 11663 11664 entry = ctl_get_cmd_entry(ctsio); 11665 if (entry->execute == NULL) { 11666 ctl_set_invalid_opcode(ctsio); 11667 ctl_done((union ctl_io *)ctsio); 11668 return (NULL); 11669 } 11670 KASSERT(entry->length > 0, 11671 ("Not defined length for command 0x%02x/0x%02x", 11672 ctsio->cdb[0], ctsio->cdb[1])); 11673 for (i = 1; i < entry->length; i++) { 11674 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11675 if (diff == 0) 11676 continue; 11677 ctl_set_invalid_field(ctsio, 11678 /*sks_valid*/ 1, 11679 /*command*/ 1, 11680 /*field*/ i, 11681 /*bit_valid*/ 1, 11682 /*bit*/ fls(diff) - 1); 11683 ctl_done((union ctl_io *)ctsio); 11684 return (NULL); 11685 } 11686 return (entry); 11687 } 11688 11689 static int 11690 ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11691 { 11692 11693 switch (lun_type) { 11694 case T_PROCESSOR: 11695 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11696 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11697 return (0); 11698 break; 11699 case T_DIRECT: 11700 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11701 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11702 return (0); 11703 break; 11704 default: 11705 return (0); 11706 } 11707 return (1); 11708 } 11709 11710 static int 11711 ctl_scsiio(struct ctl_scsiio *ctsio) 11712 { 11713 int retval; 11714 const struct ctl_cmd_entry *entry; 11715 11716 retval = CTL_RETVAL_COMPLETE; 11717 11718 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11719 11720 entry = ctl_get_cmd_entry(ctsio); 11721 11722 /* 11723 * If this I/O has been aborted, just send it straight to 11724 * ctl_done() without executing it. 11725 */ 11726 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11727 ctl_done((union ctl_io *)ctsio); 11728 goto bailout; 11729 } 11730 11731 /* 11732 * All the checks should have been handled by ctl_scsiio_precheck(). 11733 * We should be clear now to just execute the I/O. 11734 */ 11735 retval = entry->execute(ctsio); 11736 11737 bailout: 11738 return (retval); 11739 } 11740 11741 /* 11742 * Since we only implement one target right now, a bus reset simply resets 11743 * our single target. 11744 */ 11745 static int 11746 ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11747 { 11748 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11749 } 11750 11751 static int 11752 ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11753 ctl_ua_type ua_type) 11754 { 11755 struct ctl_lun *lun; 11756 int retval; 11757 11758 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11759 union ctl_ha_msg msg_info; 11760 11761 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11762 msg_info.hdr.nexus = io->io_hdr.nexus; 11763 if (ua_type==CTL_UA_TARG_RESET) 11764 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11765 else 11766 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11767 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11768 msg_info.hdr.original_sc = NULL; 11769 msg_info.hdr.serializing_sc = NULL; 11770 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11771 (void *)&msg_info, sizeof(msg_info), 0)) { 11772 } 11773 } 11774 retval = 0; 11775 11776 mtx_lock(&ctl_softc->ctl_lock); 11777 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11778 retval += ctl_lun_reset(lun, io, ua_type); 11779 mtx_unlock(&ctl_softc->ctl_lock); 11780 11781 return (retval); 11782 } 11783 11784 /* 11785 * The LUN should always be set. The I/O is optional, and is used to 11786 * distinguish between I/Os sent by this initiator, and by other 11787 * initiators. We set unit attention for initiators other than this one. 11788 * SAM-3 is vague on this point. It does say that a unit attention should 11789 * be established for other initiators when a LUN is reset (see section 11790 * 5.7.3), but it doesn't specifically say that the unit attention should 11791 * be established for this particular initiator when a LUN is reset. Here 11792 * is the relevant text, from SAM-3 rev 8: 11793 * 11794 * 5.7.2 When a SCSI initiator port aborts its own tasks 11795 * 11796 * When a SCSI initiator port causes its own task(s) to be aborted, no 11797 * notification that the task(s) have been aborted shall be returned to 11798 * the SCSI initiator port other than the completion response for the 11799 * command or task management function action that caused the task(s) to 11800 * be aborted and notification(s) associated with related effects of the 11801 * action (e.g., a reset unit attention condition). 11802 * 11803 * XXX KDM for now, we're setting unit attention for all initiators. 11804 */ 11805 static int 11806 ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11807 { 11808 union ctl_io *xio; 11809 #if 0 11810 uint32_t initindex; 11811 #endif 11812 int i; 11813 11814 mtx_lock(&lun->lun_lock); 11815 /* 11816 * Run through the OOA queue and abort each I/O. 11817 */ 11818 #if 0 11819 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11820 #endif 11821 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11822 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11823 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11824 } 11825 11826 /* 11827 * This version sets unit attention for every 11828 */ 11829 #if 0 11830 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11831 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11832 if (initindex == i) 11833 continue; 11834 lun->pending_ua[i] |= ua_type; 11835 } 11836 #endif 11837 11838 /* 11839 * A reset (any kind, really) clears reservations established with 11840 * RESERVE/RELEASE. It does not clear reservations established 11841 * with PERSISTENT RESERVE OUT, but we don't support that at the 11842 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11843 * reservations made with the RESERVE/RELEASE commands, because 11844 * those commands are obsolete in SPC-3. 11845 */ 11846 lun->flags &= ~CTL_LUN_RESERVED; 11847 11848 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11849 #ifdef CTL_WITH_CA 11850 ctl_clear_mask(lun->have_ca, i); 11851 #endif 11852 lun->pending_ua[i] |= ua_type; 11853 } 11854 mtx_unlock(&lun->lun_lock); 11855 11856 return (0); 11857 } 11858 11859 static int 11860 ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11861 int other_sc) 11862 { 11863 union ctl_io *xio; 11864 int found; 11865 11866 mtx_assert(&lun->lun_lock, MA_OWNED); 11867 11868 /* 11869 * Run through the OOA queue and attempt to find the given I/O. 11870 * The target port, initiator ID, tag type and tag number have to 11871 * match the values that we got from the initiator. If we have an 11872 * untagged command to abort, simply abort the first untagged command 11873 * we come to. We only allow one untagged command at a time of course. 11874 */ 11875 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11876 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11877 11878 if ((targ_port == UINT32_MAX || 11879 targ_port == xio->io_hdr.nexus.targ_port) && 11880 (init_id == UINT32_MAX || 11881 init_id == xio->io_hdr.nexus.initid.id)) { 11882 if (targ_port != xio->io_hdr.nexus.targ_port || 11883 init_id != xio->io_hdr.nexus.initid.id) 11884 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11885 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11886 found = 1; 11887 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11888 union ctl_ha_msg msg_info; 11889 11890 msg_info.hdr.nexus = xio->io_hdr.nexus; 11891 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11892 msg_info.task.tag_num = xio->scsiio.tag_num; 11893 msg_info.task.tag_type = xio->scsiio.tag_type; 11894 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11895 msg_info.hdr.original_sc = NULL; 11896 msg_info.hdr.serializing_sc = NULL; 11897 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11898 (void *)&msg_info, sizeof(msg_info), 0); 11899 } 11900 } 11901 } 11902 return (found); 11903 } 11904 11905 static int 11906 ctl_abort_task_set(union ctl_io *io) 11907 { 11908 struct ctl_softc *softc = control_softc; 11909 struct ctl_lun *lun; 11910 uint32_t targ_lun; 11911 11912 /* 11913 * Look up the LUN. 11914 */ 11915 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11916 mtx_lock(&softc->ctl_lock); 11917 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11918 lun = softc->ctl_luns[targ_lun]; 11919 else { 11920 mtx_unlock(&softc->ctl_lock); 11921 return (1); 11922 } 11923 11924 mtx_lock(&lun->lun_lock); 11925 mtx_unlock(&softc->ctl_lock); 11926 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11927 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11928 io->io_hdr.nexus.initid.id, 11929 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11930 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11931 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11932 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11933 } 11934 mtx_unlock(&lun->lun_lock); 11935 return (0); 11936 } 11937 11938 static int 11939 ctl_i_t_nexus_reset(union ctl_io *io) 11940 { 11941 struct ctl_softc *softc = control_softc; 11942 struct ctl_lun *lun; 11943 uint32_t initindex; 11944 11945 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11946 mtx_lock(&softc->ctl_lock); 11947 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11948 mtx_lock(&lun->lun_lock); 11949 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11950 io->io_hdr.nexus.initid.id, 11951 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11952 #ifdef CTL_WITH_CA 11953 ctl_clear_mask(lun->have_ca, initindex); 11954 #endif 11955 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 11956 mtx_unlock(&lun->lun_lock); 11957 } 11958 mtx_unlock(&softc->ctl_lock); 11959 return (0); 11960 } 11961 11962 static int 11963 ctl_abort_task(union ctl_io *io) 11964 { 11965 union ctl_io *xio; 11966 struct ctl_lun *lun; 11967 struct ctl_softc *ctl_softc; 11968 #if 0 11969 struct sbuf sb; 11970 char printbuf[128]; 11971 #endif 11972 int found; 11973 uint32_t targ_lun; 11974 11975 ctl_softc = control_softc; 11976 found = 0; 11977 11978 /* 11979 * Look up the LUN. 11980 */ 11981 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11982 mtx_lock(&ctl_softc->ctl_lock); 11983 if ((targ_lun < CTL_MAX_LUNS) 11984 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11985 lun = ctl_softc->ctl_luns[targ_lun]; 11986 else { 11987 mtx_unlock(&ctl_softc->ctl_lock); 11988 return (1); 11989 } 11990 11991 #if 0 11992 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11993 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11994 #endif 11995 11996 mtx_lock(&lun->lun_lock); 11997 mtx_unlock(&ctl_softc->ctl_lock); 11998 /* 11999 * Run through the OOA queue and attempt to find the given I/O. 12000 * The target port, initiator ID, tag type and tag number have to 12001 * match the values that we got from the initiator. If we have an 12002 * untagged command to abort, simply abort the first untagged command 12003 * we come to. We only allow one untagged command at a time of course. 12004 */ 12005 #if 0 12006 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12007 #endif 12008 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12009 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12010 #if 0 12011 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12012 12013 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12014 lun->lun, xio->scsiio.tag_num, 12015 xio->scsiio.tag_type, 12016 (xio->io_hdr.blocked_links.tqe_prev 12017 == NULL) ? "" : " BLOCKED", 12018 (xio->io_hdr.flags & 12019 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12020 (xio->io_hdr.flags & 12021 CTL_FLAG_ABORT) ? " ABORT" : "", 12022 (xio->io_hdr.flags & 12023 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12024 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12025 sbuf_finish(&sb); 12026 printf("%s\n", sbuf_data(&sb)); 12027 #endif 12028 12029 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12030 && (xio->io_hdr.nexus.initid.id == 12031 io->io_hdr.nexus.initid.id)) { 12032 /* 12033 * If the abort says that the task is untagged, the 12034 * task in the queue must be untagged. Otherwise, 12035 * we just check to see whether the tag numbers 12036 * match. This is because the QLogic firmware 12037 * doesn't pass back the tag type in an abort 12038 * request. 12039 */ 12040 #if 0 12041 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12042 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12043 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12044 #endif 12045 /* 12046 * XXX KDM we've got problems with FC, because it 12047 * doesn't send down a tag type with aborts. So we 12048 * can only really go by the tag number... 12049 * This may cause problems with parallel SCSI. 12050 * Need to figure that out!! 12051 */ 12052 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12053 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12054 found = 1; 12055 if ((io->io_hdr.flags & 12056 CTL_FLAG_FROM_OTHER_SC) == 0 && 12057 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12058 union ctl_ha_msg msg_info; 12059 12060 io->io_hdr.flags |= 12061 CTL_FLAG_SENT_2OTHER_SC; 12062 msg_info.hdr.nexus = io->io_hdr.nexus; 12063 msg_info.task.task_action = 12064 CTL_TASK_ABORT_TASK; 12065 msg_info.task.tag_num = 12066 io->taskio.tag_num; 12067 msg_info.task.tag_type = 12068 io->taskio.tag_type; 12069 msg_info.hdr.msg_type = 12070 CTL_MSG_MANAGE_TASKS; 12071 msg_info.hdr.original_sc = NULL; 12072 msg_info.hdr.serializing_sc = NULL; 12073 #if 0 12074 printf("Sent Abort to other side\n"); 12075 #endif 12076 if (CTL_HA_STATUS_SUCCESS != 12077 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12078 (void *)&msg_info, 12079 sizeof(msg_info), 0)) { 12080 } 12081 } 12082 #if 0 12083 printf("ctl_abort_task: found I/O to abort\n"); 12084 #endif 12085 break; 12086 } 12087 } 12088 } 12089 mtx_unlock(&lun->lun_lock); 12090 12091 if (found == 0) { 12092 /* 12093 * This isn't really an error. It's entirely possible for 12094 * the abort and command completion to cross on the wire. 12095 * This is more of an informative/diagnostic error. 12096 */ 12097 #if 0 12098 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12099 "%d:%d:%d:%d tag %d type %d\n", 12100 io->io_hdr.nexus.initid.id, 12101 io->io_hdr.nexus.targ_port, 12102 io->io_hdr.nexus.targ_target.id, 12103 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12104 io->taskio.tag_type); 12105 #endif 12106 } 12107 return (0); 12108 } 12109 12110 static void 12111 ctl_run_task(union ctl_io *io) 12112 { 12113 struct ctl_softc *ctl_softc = control_softc; 12114 int retval = 1; 12115 const char *task_desc; 12116 12117 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12118 12119 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12120 ("ctl_run_task: Unextected io_type %d\n", 12121 io->io_hdr.io_type)); 12122 12123 task_desc = ctl_scsi_task_string(&io->taskio); 12124 if (task_desc != NULL) { 12125 #ifdef NEEDTOPORT 12126 csevent_log(CSC_CTL | CSC_SHELF_SW | 12127 CTL_TASK_REPORT, 12128 csevent_LogType_Trace, 12129 csevent_Severity_Information, 12130 csevent_AlertLevel_Green, 12131 csevent_FRU_Firmware, 12132 csevent_FRU_Unknown, 12133 "CTL: received task: %s",task_desc); 12134 #endif 12135 } else { 12136 #ifdef NEEDTOPORT 12137 csevent_log(CSC_CTL | CSC_SHELF_SW | 12138 CTL_TASK_REPORT, 12139 csevent_LogType_Trace, 12140 csevent_Severity_Information, 12141 csevent_AlertLevel_Green, 12142 csevent_FRU_Firmware, 12143 csevent_FRU_Unknown, 12144 "CTL: received unknown task " 12145 "type: %d (%#x)", 12146 io->taskio.task_action, 12147 io->taskio.task_action); 12148 #endif 12149 } 12150 switch (io->taskio.task_action) { 12151 case CTL_TASK_ABORT_TASK: 12152 retval = ctl_abort_task(io); 12153 break; 12154 case CTL_TASK_ABORT_TASK_SET: 12155 case CTL_TASK_CLEAR_TASK_SET: 12156 retval = ctl_abort_task_set(io); 12157 break; 12158 case CTL_TASK_CLEAR_ACA: 12159 break; 12160 case CTL_TASK_I_T_NEXUS_RESET: 12161 retval = ctl_i_t_nexus_reset(io); 12162 break; 12163 case CTL_TASK_LUN_RESET: { 12164 struct ctl_lun *lun; 12165 uint32_t targ_lun; 12166 12167 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12168 mtx_lock(&ctl_softc->ctl_lock); 12169 if ((targ_lun < CTL_MAX_LUNS) 12170 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12171 lun = ctl_softc->ctl_luns[targ_lun]; 12172 else { 12173 mtx_unlock(&ctl_softc->ctl_lock); 12174 retval = 1; 12175 break; 12176 } 12177 12178 if (!(io->io_hdr.flags & 12179 CTL_FLAG_FROM_OTHER_SC)) { 12180 union ctl_ha_msg msg_info; 12181 12182 io->io_hdr.flags |= 12183 CTL_FLAG_SENT_2OTHER_SC; 12184 msg_info.hdr.msg_type = 12185 CTL_MSG_MANAGE_TASKS; 12186 msg_info.hdr.nexus = io->io_hdr.nexus; 12187 msg_info.task.task_action = 12188 CTL_TASK_LUN_RESET; 12189 msg_info.hdr.original_sc = NULL; 12190 msg_info.hdr.serializing_sc = NULL; 12191 if (CTL_HA_STATUS_SUCCESS != 12192 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12193 (void *)&msg_info, 12194 sizeof(msg_info), 0)) { 12195 } 12196 } 12197 12198 retval = ctl_lun_reset(lun, io, 12199 CTL_UA_LUN_RESET); 12200 mtx_unlock(&ctl_softc->ctl_lock); 12201 break; 12202 } 12203 case CTL_TASK_TARGET_RESET: 12204 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12205 break; 12206 case CTL_TASK_BUS_RESET: 12207 retval = ctl_bus_reset(ctl_softc, io); 12208 break; 12209 case CTL_TASK_PORT_LOGIN: 12210 break; 12211 case CTL_TASK_PORT_LOGOUT: 12212 break; 12213 default: 12214 printf("ctl_run_task: got unknown task management event %d\n", 12215 io->taskio.task_action); 12216 break; 12217 } 12218 if (retval == 0) 12219 io->io_hdr.status = CTL_SUCCESS; 12220 else 12221 io->io_hdr.status = CTL_ERROR; 12222 ctl_done(io); 12223 } 12224 12225 /* 12226 * For HA operation. Handle commands that come in from the other 12227 * controller. 12228 */ 12229 static void 12230 ctl_handle_isc(union ctl_io *io) 12231 { 12232 int free_io; 12233 struct ctl_lun *lun; 12234 struct ctl_softc *ctl_softc; 12235 uint32_t targ_lun; 12236 12237 ctl_softc = control_softc; 12238 12239 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12240 lun = ctl_softc->ctl_luns[targ_lun]; 12241 12242 switch (io->io_hdr.msg_type) { 12243 case CTL_MSG_SERIALIZE: 12244 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12245 break; 12246 case CTL_MSG_R2R: { 12247 const struct ctl_cmd_entry *entry; 12248 12249 /* 12250 * This is only used in SER_ONLY mode. 12251 */ 12252 free_io = 0; 12253 entry = ctl_get_cmd_entry(&io->scsiio); 12254 mtx_lock(&lun->lun_lock); 12255 if (ctl_scsiio_lun_check(ctl_softc, lun, 12256 entry, (struct ctl_scsiio *)io) != 0) { 12257 mtx_unlock(&lun->lun_lock); 12258 ctl_done(io); 12259 break; 12260 } 12261 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12262 mtx_unlock(&lun->lun_lock); 12263 ctl_enqueue_rtr(io); 12264 break; 12265 } 12266 case CTL_MSG_FINISH_IO: 12267 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12268 free_io = 0; 12269 ctl_done(io); 12270 } else { 12271 free_io = 1; 12272 mtx_lock(&lun->lun_lock); 12273 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12274 ooa_links); 12275 ctl_check_blocked(lun); 12276 mtx_unlock(&lun->lun_lock); 12277 } 12278 break; 12279 case CTL_MSG_PERS_ACTION: 12280 ctl_hndl_per_res_out_on_other_sc( 12281 (union ctl_ha_msg *)&io->presio.pr_msg); 12282 free_io = 1; 12283 break; 12284 case CTL_MSG_BAD_JUJU: 12285 free_io = 0; 12286 ctl_done(io); 12287 break; 12288 case CTL_MSG_DATAMOVE: 12289 /* Only used in XFER mode */ 12290 free_io = 0; 12291 ctl_datamove_remote(io); 12292 break; 12293 case CTL_MSG_DATAMOVE_DONE: 12294 /* Only used in XFER mode */ 12295 free_io = 0; 12296 io->scsiio.be_move_done(io); 12297 break; 12298 default: 12299 free_io = 1; 12300 printf("%s: Invalid message type %d\n", 12301 __func__, io->io_hdr.msg_type); 12302 break; 12303 } 12304 if (free_io) 12305 ctl_free_io(io); 12306 12307 } 12308 12309 12310 /* 12311 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12312 * there is no match. 12313 */ 12314 static ctl_lun_error_pattern 12315 ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12316 { 12317 const struct ctl_cmd_entry *entry; 12318 ctl_lun_error_pattern filtered_pattern, pattern; 12319 12320 pattern = desc->error_pattern; 12321 12322 /* 12323 * XXX KDM we need more data passed into this function to match a 12324 * custom pattern, and we actually need to implement custom pattern 12325 * matching. 12326 */ 12327 if (pattern & CTL_LUN_PAT_CMD) 12328 return (CTL_LUN_PAT_CMD); 12329 12330 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12331 return (CTL_LUN_PAT_ANY); 12332 12333 entry = ctl_get_cmd_entry(ctsio); 12334 12335 filtered_pattern = entry->pattern & pattern; 12336 12337 /* 12338 * If the user requested specific flags in the pattern (e.g. 12339 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12340 * flags. 12341 * 12342 * If the user did not specify any flags, it doesn't matter whether 12343 * or not the command supports the flags. 12344 */ 12345 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12346 (pattern & ~CTL_LUN_PAT_MASK)) 12347 return (CTL_LUN_PAT_NONE); 12348 12349 /* 12350 * If the user asked for a range check, see if the requested LBA 12351 * range overlaps with this command's LBA range. 12352 */ 12353 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12354 uint64_t lba1; 12355 uint32_t len1; 12356 ctl_action action; 12357 int retval; 12358 12359 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12360 if (retval != 0) 12361 return (CTL_LUN_PAT_NONE); 12362 12363 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12364 desc->lba_range.len); 12365 /* 12366 * A "pass" means that the LBA ranges don't overlap, so 12367 * this doesn't match the user's range criteria. 12368 */ 12369 if (action == CTL_ACTION_PASS) 12370 return (CTL_LUN_PAT_NONE); 12371 } 12372 12373 return (filtered_pattern); 12374 } 12375 12376 static void 12377 ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12378 { 12379 struct ctl_error_desc *desc, *desc2; 12380 12381 mtx_assert(&lun->lun_lock, MA_OWNED); 12382 12383 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12384 ctl_lun_error_pattern pattern; 12385 /* 12386 * Check to see whether this particular command matches 12387 * the pattern in the descriptor. 12388 */ 12389 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12390 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12391 continue; 12392 12393 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12394 case CTL_LUN_INJ_ABORTED: 12395 ctl_set_aborted(&io->scsiio); 12396 break; 12397 case CTL_LUN_INJ_MEDIUM_ERR: 12398 ctl_set_medium_error(&io->scsiio); 12399 break; 12400 case CTL_LUN_INJ_UA: 12401 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12402 * OCCURRED */ 12403 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12404 break; 12405 case CTL_LUN_INJ_CUSTOM: 12406 /* 12407 * We're assuming the user knows what he is doing. 12408 * Just copy the sense information without doing 12409 * checks. 12410 */ 12411 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12412 ctl_min(sizeof(desc->custom_sense), 12413 sizeof(io->scsiio.sense_data))); 12414 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12415 io->scsiio.sense_len = SSD_FULL_SIZE; 12416 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12417 break; 12418 case CTL_LUN_INJ_NONE: 12419 default: 12420 /* 12421 * If this is an error injection type we don't know 12422 * about, clear the continuous flag (if it is set) 12423 * so it will get deleted below. 12424 */ 12425 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12426 break; 12427 } 12428 /* 12429 * By default, each error injection action is a one-shot 12430 */ 12431 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12432 continue; 12433 12434 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12435 12436 free(desc, M_CTL); 12437 } 12438 } 12439 12440 #ifdef CTL_IO_DELAY 12441 static void 12442 ctl_datamove_timer_wakeup(void *arg) 12443 { 12444 union ctl_io *io; 12445 12446 io = (union ctl_io *)arg; 12447 12448 ctl_datamove(io); 12449 } 12450 #endif /* CTL_IO_DELAY */ 12451 12452 void 12453 ctl_datamove(union ctl_io *io) 12454 { 12455 void (*fe_datamove)(union ctl_io *io); 12456 12457 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12458 12459 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12460 12461 #ifdef CTL_TIME_IO 12462 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12463 char str[256]; 12464 char path_str[64]; 12465 struct sbuf sb; 12466 12467 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12468 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12469 12470 sbuf_cat(&sb, path_str); 12471 switch (io->io_hdr.io_type) { 12472 case CTL_IO_SCSI: 12473 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12474 sbuf_printf(&sb, "\n"); 12475 sbuf_cat(&sb, path_str); 12476 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12477 io->scsiio.tag_num, io->scsiio.tag_type); 12478 break; 12479 case CTL_IO_TASK: 12480 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12481 "Tag Type: %d\n", io->taskio.task_action, 12482 io->taskio.tag_num, io->taskio.tag_type); 12483 break; 12484 default: 12485 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12486 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12487 break; 12488 } 12489 sbuf_cat(&sb, path_str); 12490 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12491 (intmax_t)time_uptime - io->io_hdr.start_time); 12492 sbuf_finish(&sb); 12493 printf("%s", sbuf_data(&sb)); 12494 } 12495 #endif /* CTL_TIME_IO */ 12496 12497 #ifdef CTL_IO_DELAY 12498 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12499 struct ctl_lun *lun; 12500 12501 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12502 12503 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12504 } else { 12505 struct ctl_lun *lun; 12506 12507 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12508 if ((lun != NULL) 12509 && (lun->delay_info.datamove_delay > 0)) { 12510 struct callout *callout; 12511 12512 callout = (struct callout *)&io->io_hdr.timer_bytes; 12513 callout_init(callout, /*mpsafe*/ 1); 12514 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12515 callout_reset(callout, 12516 lun->delay_info.datamove_delay * hz, 12517 ctl_datamove_timer_wakeup, io); 12518 if (lun->delay_info.datamove_type == 12519 CTL_DELAY_TYPE_ONESHOT) 12520 lun->delay_info.datamove_delay = 0; 12521 return; 12522 } 12523 } 12524 #endif 12525 12526 /* 12527 * This command has been aborted. Set the port status, so we fail 12528 * the data move. 12529 */ 12530 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12531 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12532 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12533 io->io_hdr.nexus.targ_port, 12534 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12535 io->io_hdr.nexus.targ_lun); 12536 io->io_hdr.port_status = 31337; 12537 /* 12538 * Note that the backend, in this case, will get the 12539 * callback in its context. In other cases it may get 12540 * called in the frontend's interrupt thread context. 12541 */ 12542 io->scsiio.be_move_done(io); 12543 return; 12544 } 12545 12546 /* 12547 * If we're in XFER mode and this I/O is from the other shelf 12548 * controller, we need to send the DMA to the other side to 12549 * actually transfer the data to/from the host. In serialize only 12550 * mode the transfer happens below CTL and ctl_datamove() is only 12551 * called on the machine that originally received the I/O. 12552 */ 12553 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12554 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12555 union ctl_ha_msg msg; 12556 uint32_t sg_entries_sent; 12557 int do_sg_copy; 12558 int i; 12559 12560 memset(&msg, 0, sizeof(msg)); 12561 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12562 msg.hdr.original_sc = io->io_hdr.original_sc; 12563 msg.hdr.serializing_sc = io; 12564 msg.hdr.nexus = io->io_hdr.nexus; 12565 msg.dt.flags = io->io_hdr.flags; 12566 /* 12567 * We convert everything into a S/G list here. We can't 12568 * pass by reference, only by value between controllers. 12569 * So we can't pass a pointer to the S/G list, only as many 12570 * S/G entries as we can fit in here. If it's possible for 12571 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12572 * then we need to break this up into multiple transfers. 12573 */ 12574 if (io->scsiio.kern_sg_entries == 0) { 12575 msg.dt.kern_sg_entries = 1; 12576 /* 12577 * If this is in cached memory, flush the cache 12578 * before we send the DMA request to the other 12579 * controller. We want to do this in either the 12580 * read or the write case. The read case is 12581 * straightforward. In the write case, we want to 12582 * make sure nothing is in the local cache that 12583 * could overwrite the DMAed data. 12584 */ 12585 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12586 /* 12587 * XXX KDM use bus_dmamap_sync() here. 12588 */ 12589 } 12590 12591 /* 12592 * Convert to a physical address if this is a 12593 * virtual address. 12594 */ 12595 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12596 msg.dt.sg_list[0].addr = 12597 io->scsiio.kern_data_ptr; 12598 } else { 12599 /* 12600 * XXX KDM use busdma here! 12601 */ 12602 #if 0 12603 msg.dt.sg_list[0].addr = (void *) 12604 vtophys(io->scsiio.kern_data_ptr); 12605 #endif 12606 } 12607 12608 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12609 do_sg_copy = 0; 12610 } else { 12611 struct ctl_sg_entry *sgl; 12612 12613 do_sg_copy = 1; 12614 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12615 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12616 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12617 /* 12618 * XXX KDM use bus_dmamap_sync() here. 12619 */ 12620 } 12621 } 12622 12623 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12624 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12625 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12626 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12627 msg.dt.sg_sequence = 0; 12628 12629 /* 12630 * Loop until we've sent all of the S/G entries. On the 12631 * other end, we'll recompose these S/G entries into one 12632 * contiguous list before passing it to the 12633 */ 12634 for (sg_entries_sent = 0; sg_entries_sent < 12635 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12636 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12637 sizeof(msg.dt.sg_list[0])), 12638 msg.dt.kern_sg_entries - sg_entries_sent); 12639 12640 if (do_sg_copy != 0) { 12641 struct ctl_sg_entry *sgl; 12642 int j; 12643 12644 sgl = (struct ctl_sg_entry *) 12645 io->scsiio.kern_data_ptr; 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 12650 * the * read or the write case. The read 12651 * case is straightforward. In the write 12652 * case, we want to make sure nothing is 12653 * in the local cache that could overwrite 12654 * the DMAed data. 12655 */ 12656 12657 for (i = sg_entries_sent, j = 0; 12658 i < msg.dt.cur_sg_entries; i++, j++) { 12659 if ((io->io_hdr.flags & 12660 CTL_FLAG_NO_DATASYNC) == 0) { 12661 /* 12662 * XXX KDM use bus_dmamap_sync() 12663 */ 12664 } 12665 if ((io->io_hdr.flags & 12666 CTL_FLAG_BUS_ADDR) == 0) { 12667 /* 12668 * XXX KDM use busdma. 12669 */ 12670 #if 0 12671 msg.dt.sg_list[j].addr =(void *) 12672 vtophys(sgl[i].addr); 12673 #endif 12674 } else { 12675 msg.dt.sg_list[j].addr = 12676 sgl[i].addr; 12677 } 12678 msg.dt.sg_list[j].len = sgl[i].len; 12679 } 12680 } 12681 12682 sg_entries_sent += msg.dt.cur_sg_entries; 12683 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12684 msg.dt.sg_last = 1; 12685 else 12686 msg.dt.sg_last = 0; 12687 12688 /* 12689 * XXX KDM drop and reacquire the lock here? 12690 */ 12691 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12692 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12693 /* 12694 * XXX do something here. 12695 */ 12696 } 12697 12698 msg.dt.sent_sg_entries = sg_entries_sent; 12699 } 12700 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12701 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12702 ctl_failover_io(io, /*have_lock*/ 0); 12703 12704 } else { 12705 12706 /* 12707 * Lookup the fe_datamove() function for this particular 12708 * front end. 12709 */ 12710 fe_datamove = 12711 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12712 12713 fe_datamove(io); 12714 } 12715 } 12716 12717 static void 12718 ctl_send_datamove_done(union ctl_io *io, int have_lock) 12719 { 12720 union ctl_ha_msg msg; 12721 int isc_status; 12722 12723 memset(&msg, 0, sizeof(msg)); 12724 12725 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12726 msg.hdr.original_sc = io; 12727 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12728 msg.hdr.nexus = io->io_hdr.nexus; 12729 msg.hdr.status = io->io_hdr.status; 12730 msg.scsi.tag_num = io->scsiio.tag_num; 12731 msg.scsi.tag_type = io->scsiio.tag_type; 12732 msg.scsi.scsi_status = io->scsiio.scsi_status; 12733 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12734 sizeof(io->scsiio.sense_data)); 12735 msg.scsi.sense_len = io->scsiio.sense_len; 12736 msg.scsi.sense_residual = io->scsiio.sense_residual; 12737 msg.scsi.fetd_status = io->io_hdr.port_status; 12738 msg.scsi.residual = io->scsiio.residual; 12739 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12740 12741 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12742 ctl_failover_io(io, /*have_lock*/ have_lock); 12743 return; 12744 } 12745 12746 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12747 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12748 /* XXX do something if this fails */ 12749 } 12750 12751 } 12752 12753 /* 12754 * The DMA to the remote side is done, now we need to tell the other side 12755 * we're done so it can continue with its data movement. 12756 */ 12757 static void 12758 ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12759 { 12760 union ctl_io *io; 12761 12762 io = rq->context; 12763 12764 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12765 printf("%s: ISC DMA write failed with error %d", __func__, 12766 rq->ret); 12767 ctl_set_internal_failure(&io->scsiio, 12768 /*sks_valid*/ 1, 12769 /*retry_count*/ rq->ret); 12770 } 12771 12772 ctl_dt_req_free(rq); 12773 12774 /* 12775 * In this case, we had to malloc the memory locally. Free it. 12776 */ 12777 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12778 int i; 12779 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12780 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12781 } 12782 /* 12783 * The data is in local and remote memory, so now we need to send 12784 * status (good or back) back to the other side. 12785 */ 12786 ctl_send_datamove_done(io, /*have_lock*/ 0); 12787 } 12788 12789 /* 12790 * We've moved the data from the host/controller into local memory. Now we 12791 * need to push it over to the remote controller's memory. 12792 */ 12793 static int 12794 ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12795 { 12796 int retval; 12797 12798 retval = 0; 12799 12800 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12801 ctl_datamove_remote_write_cb); 12802 12803 return (retval); 12804 } 12805 12806 static void 12807 ctl_datamove_remote_write(union ctl_io *io) 12808 { 12809 int retval; 12810 void (*fe_datamove)(union ctl_io *io); 12811 12812 /* 12813 * - Get the data from the host/HBA into local memory. 12814 * - DMA memory from the local controller to the remote controller. 12815 * - Send status back to the remote controller. 12816 */ 12817 12818 retval = ctl_datamove_remote_sgl_setup(io); 12819 if (retval != 0) 12820 return; 12821 12822 /* Switch the pointer over so the FETD knows what to do */ 12823 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12824 12825 /* 12826 * Use a custom move done callback, since we need to send completion 12827 * back to the other controller, not to the backend on this side. 12828 */ 12829 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12830 12831 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12832 12833 fe_datamove(io); 12834 12835 return; 12836 12837 } 12838 12839 static int 12840 ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12841 { 12842 #if 0 12843 char str[256]; 12844 char path_str[64]; 12845 struct sbuf sb; 12846 #endif 12847 12848 /* 12849 * In this case, we had to malloc the memory locally. Free it. 12850 */ 12851 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12852 int i; 12853 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12854 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12855 } 12856 12857 #if 0 12858 scsi_path_string(io, path_str, sizeof(path_str)); 12859 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12860 sbuf_cat(&sb, path_str); 12861 scsi_command_string(&io->scsiio, NULL, &sb); 12862 sbuf_printf(&sb, "\n"); 12863 sbuf_cat(&sb, path_str); 12864 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12865 io->scsiio.tag_num, io->scsiio.tag_type); 12866 sbuf_cat(&sb, path_str); 12867 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12868 io->io_hdr.flags, io->io_hdr.status); 12869 sbuf_finish(&sb); 12870 printk("%s", sbuf_data(&sb)); 12871 #endif 12872 12873 12874 /* 12875 * The read is done, now we need to send status (good or bad) back 12876 * to the other side. 12877 */ 12878 ctl_send_datamove_done(io, /*have_lock*/ 0); 12879 12880 return (0); 12881 } 12882 12883 static void 12884 ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12885 { 12886 union ctl_io *io; 12887 void (*fe_datamove)(union ctl_io *io); 12888 12889 io = rq->context; 12890 12891 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12892 printf("%s: ISC DMA read failed with error %d", __func__, 12893 rq->ret); 12894 ctl_set_internal_failure(&io->scsiio, 12895 /*sks_valid*/ 1, 12896 /*retry_count*/ rq->ret); 12897 } 12898 12899 ctl_dt_req_free(rq); 12900 12901 /* Switch the pointer over so the FETD knows what to do */ 12902 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12903 12904 /* 12905 * Use a custom move done callback, since we need to send completion 12906 * back to the other controller, not to the backend on this side. 12907 */ 12908 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12909 12910 /* XXX KDM add checks like the ones in ctl_datamove? */ 12911 12912 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12913 12914 fe_datamove(io); 12915 } 12916 12917 static int 12918 ctl_datamove_remote_sgl_setup(union ctl_io *io) 12919 { 12920 struct ctl_sg_entry *local_sglist, *remote_sglist; 12921 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12922 struct ctl_softc *softc; 12923 int retval; 12924 int i; 12925 12926 retval = 0; 12927 softc = control_softc; 12928 12929 local_sglist = io->io_hdr.local_sglist; 12930 local_dma_sglist = io->io_hdr.local_dma_sglist; 12931 remote_sglist = io->io_hdr.remote_sglist; 12932 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12933 12934 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12935 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12936 local_sglist[i].len = remote_sglist[i].len; 12937 12938 /* 12939 * XXX Detect the situation where the RS-level I/O 12940 * redirector on the other side has already read the 12941 * data off of the AOR RS on this side, and 12942 * transferred it to remote (mirror) memory on the 12943 * other side. Since we already have the data in 12944 * memory here, we just need to use it. 12945 * 12946 * XXX KDM this can probably be removed once we 12947 * get the cache device code in and take the 12948 * current AOR implementation out. 12949 */ 12950 #ifdef NEEDTOPORT 12951 if ((remote_sglist[i].addr >= 12952 (void *)vtophys(softc->mirr->addr)) 12953 && (remote_sglist[i].addr < 12954 ((void *)vtophys(softc->mirr->addr) + 12955 CacheMirrorOffset))) { 12956 local_sglist[i].addr = remote_sglist[i].addr - 12957 CacheMirrorOffset; 12958 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12959 CTL_FLAG_DATA_IN) 12960 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12961 } else { 12962 local_sglist[i].addr = remote_sglist[i].addr + 12963 CacheMirrorOffset; 12964 } 12965 #endif 12966 #if 0 12967 printf("%s: local %p, remote %p, len %d\n", 12968 __func__, local_sglist[i].addr, 12969 remote_sglist[i].addr, local_sglist[i].len); 12970 #endif 12971 } 12972 } else { 12973 uint32_t len_to_go; 12974 12975 /* 12976 * In this case, we don't have automatically allocated 12977 * memory for this I/O on this controller. This typically 12978 * happens with internal CTL I/O -- e.g. inquiry, mode 12979 * sense, etc. Anything coming from RAIDCore will have 12980 * a mirror area available. 12981 */ 12982 len_to_go = io->scsiio.kern_data_len; 12983 12984 /* 12985 * Clear the no datasync flag, we have to use malloced 12986 * buffers. 12987 */ 12988 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12989 12990 /* 12991 * The difficult thing here is that the size of the various 12992 * S/G segments may be different than the size from the 12993 * remote controller. That'll make it harder when DMAing 12994 * the data back to the other side. 12995 */ 12996 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12997 sizeof(io->io_hdr.remote_sglist[0])) && 12998 (len_to_go > 0); i++) { 12999 local_sglist[i].len = ctl_min(len_to_go, 131072); 13000 CTL_SIZE_8B(local_dma_sglist[i].len, 13001 local_sglist[i].len); 13002 local_sglist[i].addr = 13003 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13004 13005 local_dma_sglist[i].addr = local_sglist[i].addr; 13006 13007 if (local_sglist[i].addr == NULL) { 13008 int j; 13009 13010 printf("malloc failed for %zd bytes!", 13011 local_dma_sglist[i].len); 13012 for (j = 0; j < i; j++) { 13013 free(local_sglist[j].addr, M_CTL); 13014 } 13015 ctl_set_internal_failure(&io->scsiio, 13016 /*sks_valid*/ 1, 13017 /*retry_count*/ 4857); 13018 retval = 1; 13019 goto bailout_error; 13020 13021 } 13022 /* XXX KDM do we need a sync here? */ 13023 13024 len_to_go -= local_sglist[i].len; 13025 } 13026 /* 13027 * Reset the number of S/G entries accordingly. The 13028 * original number of S/G entries is available in 13029 * rem_sg_entries. 13030 */ 13031 io->scsiio.kern_sg_entries = i; 13032 13033 #if 0 13034 printf("%s: kern_sg_entries = %d\n", __func__, 13035 io->scsiio.kern_sg_entries); 13036 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13037 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13038 local_sglist[i].addr, local_sglist[i].len, 13039 local_dma_sglist[i].len); 13040 #endif 13041 } 13042 13043 13044 return (retval); 13045 13046 bailout_error: 13047 13048 ctl_send_datamove_done(io, /*have_lock*/ 0); 13049 13050 return (retval); 13051 } 13052 13053 static int 13054 ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13055 ctl_ha_dt_cb callback) 13056 { 13057 struct ctl_ha_dt_req *rq; 13058 struct ctl_sg_entry *remote_sglist, *local_sglist; 13059 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13060 uint32_t local_used, remote_used, total_used; 13061 int retval; 13062 int i, j; 13063 13064 retval = 0; 13065 13066 rq = ctl_dt_req_alloc(); 13067 13068 /* 13069 * If we failed to allocate the request, and if the DMA didn't fail 13070 * anyway, set busy status. This is just a resource allocation 13071 * failure. 13072 */ 13073 if ((rq == NULL) 13074 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13075 ctl_set_busy(&io->scsiio); 13076 13077 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13078 13079 if (rq != NULL) 13080 ctl_dt_req_free(rq); 13081 13082 /* 13083 * The data move failed. We need to return status back 13084 * to the other controller. No point in trying to DMA 13085 * data to the remote controller. 13086 */ 13087 13088 ctl_send_datamove_done(io, /*have_lock*/ 0); 13089 13090 retval = 1; 13091 13092 goto bailout; 13093 } 13094 13095 local_sglist = io->io_hdr.local_sglist; 13096 local_dma_sglist = io->io_hdr.local_dma_sglist; 13097 remote_sglist = io->io_hdr.remote_sglist; 13098 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13099 local_used = 0; 13100 remote_used = 0; 13101 total_used = 0; 13102 13103 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13104 rq->ret = CTL_HA_STATUS_SUCCESS; 13105 rq->context = io; 13106 callback(rq); 13107 goto bailout; 13108 } 13109 13110 /* 13111 * Pull/push the data over the wire from/to the other controller. 13112 * This takes into account the possibility that the local and 13113 * remote sglists may not be identical in terms of the size of 13114 * the elements and the number of elements. 13115 * 13116 * One fundamental assumption here is that the length allocated for 13117 * both the local and remote sglists is identical. Otherwise, we've 13118 * essentially got a coding error of some sort. 13119 */ 13120 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13121 int isc_ret; 13122 uint32_t cur_len, dma_length; 13123 uint8_t *tmp_ptr; 13124 13125 rq->id = CTL_HA_DATA_CTL; 13126 rq->command = command; 13127 rq->context = io; 13128 13129 /* 13130 * Both pointers should be aligned. But it is possible 13131 * that the allocation length is not. They should both 13132 * also have enough slack left over at the end, though, 13133 * to round up to the next 8 byte boundary. 13134 */ 13135 cur_len = ctl_min(local_sglist[i].len - local_used, 13136 remote_sglist[j].len - remote_used); 13137 13138 /* 13139 * In this case, we have a size issue and need to decrease 13140 * the size, except in the case where we actually have less 13141 * than 8 bytes left. In that case, we need to increase 13142 * the DMA length to get the last bit. 13143 */ 13144 if ((cur_len & 0x7) != 0) { 13145 if (cur_len > 0x7) { 13146 cur_len = cur_len - (cur_len & 0x7); 13147 dma_length = cur_len; 13148 } else { 13149 CTL_SIZE_8B(dma_length, cur_len); 13150 } 13151 13152 } else 13153 dma_length = cur_len; 13154 13155 /* 13156 * If we had to allocate memory for this I/O, instead of using 13157 * the non-cached mirror memory, we'll need to flush the cache 13158 * before trying to DMA to the other controller. 13159 * 13160 * We could end up doing this multiple times for the same 13161 * segment if we have a larger local segment than remote 13162 * segment. That shouldn't be an issue. 13163 */ 13164 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13165 /* 13166 * XXX KDM use bus_dmamap_sync() here. 13167 */ 13168 } 13169 13170 rq->size = dma_length; 13171 13172 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13173 tmp_ptr += local_used; 13174 13175 /* Use physical addresses when talking to ISC hardware */ 13176 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13177 /* XXX KDM use busdma */ 13178 #if 0 13179 rq->local = vtophys(tmp_ptr); 13180 #endif 13181 } else 13182 rq->local = tmp_ptr; 13183 13184 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13185 tmp_ptr += remote_used; 13186 rq->remote = tmp_ptr; 13187 13188 rq->callback = NULL; 13189 13190 local_used += cur_len; 13191 if (local_used >= local_sglist[i].len) { 13192 i++; 13193 local_used = 0; 13194 } 13195 13196 remote_used += cur_len; 13197 if (remote_used >= remote_sglist[j].len) { 13198 j++; 13199 remote_used = 0; 13200 } 13201 total_used += cur_len; 13202 13203 if (total_used >= io->scsiio.kern_data_len) 13204 rq->callback = callback; 13205 13206 if ((rq->size & 0x7) != 0) { 13207 printf("%s: warning: size %d is not on 8b boundary\n", 13208 __func__, rq->size); 13209 } 13210 if (((uintptr_t)rq->local & 0x7) != 0) { 13211 printf("%s: warning: local %p not on 8b boundary\n", 13212 __func__, rq->local); 13213 } 13214 if (((uintptr_t)rq->remote & 0x7) != 0) { 13215 printf("%s: warning: remote %p not on 8b boundary\n", 13216 __func__, rq->local); 13217 } 13218 #if 0 13219 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13220 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13221 rq->local, rq->remote, rq->size); 13222 #endif 13223 13224 isc_ret = ctl_dt_single(rq); 13225 if (isc_ret == CTL_HA_STATUS_WAIT) 13226 continue; 13227 13228 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13229 rq->ret = CTL_HA_STATUS_SUCCESS; 13230 } else { 13231 rq->ret = isc_ret; 13232 } 13233 callback(rq); 13234 goto bailout; 13235 } 13236 13237 bailout: 13238 return (retval); 13239 13240 } 13241 13242 static void 13243 ctl_datamove_remote_read(union ctl_io *io) 13244 { 13245 int retval; 13246 int i; 13247 13248 /* 13249 * This will send an error to the other controller in the case of a 13250 * failure. 13251 */ 13252 retval = ctl_datamove_remote_sgl_setup(io); 13253 if (retval != 0) 13254 return; 13255 13256 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13257 ctl_datamove_remote_read_cb); 13258 if ((retval != 0) 13259 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13260 /* 13261 * Make sure we free memory if there was an error.. The 13262 * ctl_datamove_remote_xfer() function will send the 13263 * datamove done message, or call the callback with an 13264 * error if there is a problem. 13265 */ 13266 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13267 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13268 } 13269 13270 return; 13271 } 13272 13273 /* 13274 * Process a datamove request from the other controller. This is used for 13275 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13276 * first. Once that is complete, the data gets DMAed into the remote 13277 * controller's memory. For reads, we DMA from the remote controller's 13278 * memory into our memory first, and then move it out to the FETD. 13279 */ 13280 static void 13281 ctl_datamove_remote(union ctl_io *io) 13282 { 13283 struct ctl_softc *softc; 13284 13285 softc = control_softc; 13286 13287 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13288 13289 /* 13290 * Note that we look for an aborted I/O here, but don't do some of 13291 * the other checks that ctl_datamove() normally does. 13292 * We don't need to run the datamove delay code, since that should 13293 * have been done if need be on the other controller. 13294 */ 13295 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13296 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13297 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13298 io->io_hdr.nexus.targ_port, 13299 io->io_hdr.nexus.targ_target.id, 13300 io->io_hdr.nexus.targ_lun); 13301 io->io_hdr.port_status = 31338; 13302 ctl_send_datamove_done(io, /*have_lock*/ 0); 13303 return; 13304 } 13305 13306 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13307 ctl_datamove_remote_write(io); 13308 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13309 ctl_datamove_remote_read(io); 13310 } else { 13311 union ctl_ha_msg msg; 13312 struct scsi_sense_data *sense; 13313 uint8_t sks[3]; 13314 int retry_count; 13315 13316 memset(&msg, 0, sizeof(msg)); 13317 13318 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13319 msg.hdr.status = CTL_SCSI_ERROR; 13320 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13321 13322 retry_count = 4243; 13323 13324 sense = &msg.scsi.sense_data; 13325 sks[0] = SSD_SCS_VALID; 13326 sks[1] = (retry_count >> 8) & 0xff; 13327 sks[2] = retry_count & 0xff; 13328 13329 /* "Internal target failure" */ 13330 scsi_set_sense_data(sense, 13331 /*sense_format*/ SSD_TYPE_NONE, 13332 /*current_error*/ 1, 13333 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13334 /*asc*/ 0x44, 13335 /*ascq*/ 0x00, 13336 /*type*/ SSD_ELEM_SKS, 13337 /*size*/ sizeof(sks), 13338 /*data*/ sks, 13339 SSD_ELEM_NONE); 13340 13341 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13342 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13343 ctl_failover_io(io, /*have_lock*/ 1); 13344 return; 13345 } 13346 13347 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13348 CTL_HA_STATUS_SUCCESS) { 13349 /* XXX KDM what to do if this fails? */ 13350 } 13351 return; 13352 } 13353 13354 } 13355 13356 static int 13357 ctl_process_done(union ctl_io *io) 13358 { 13359 struct ctl_lun *lun; 13360 struct ctl_softc *ctl_softc; 13361 void (*fe_done)(union ctl_io *io); 13362 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13363 13364 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13365 13366 fe_done = 13367 control_softc->ctl_ports[targ_port]->fe_done; 13368 13369 #ifdef CTL_TIME_IO 13370 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13371 char str[256]; 13372 char path_str[64]; 13373 struct sbuf sb; 13374 13375 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13376 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13377 13378 sbuf_cat(&sb, path_str); 13379 switch (io->io_hdr.io_type) { 13380 case CTL_IO_SCSI: 13381 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13382 sbuf_printf(&sb, "\n"); 13383 sbuf_cat(&sb, path_str); 13384 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13385 io->scsiio.tag_num, io->scsiio.tag_type); 13386 break; 13387 case CTL_IO_TASK: 13388 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13389 "Tag Type: %d\n", io->taskio.task_action, 13390 io->taskio.tag_num, io->taskio.tag_type); 13391 break; 13392 default: 13393 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13394 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13395 break; 13396 } 13397 sbuf_cat(&sb, path_str); 13398 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13399 (intmax_t)time_uptime - io->io_hdr.start_time); 13400 sbuf_finish(&sb); 13401 printf("%s", sbuf_data(&sb)); 13402 } 13403 #endif /* CTL_TIME_IO */ 13404 13405 switch (io->io_hdr.io_type) { 13406 case CTL_IO_SCSI: 13407 break; 13408 case CTL_IO_TASK: 13409 if (bootverbose || verbose > 0) 13410 ctl_io_error_print(io, NULL); 13411 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13412 ctl_free_io(io); 13413 else 13414 fe_done(io); 13415 return (CTL_RETVAL_COMPLETE); 13416 break; 13417 default: 13418 printf("ctl_process_done: invalid io type %d\n", 13419 io->io_hdr.io_type); 13420 panic("ctl_process_done: invalid io type %d\n", 13421 io->io_hdr.io_type); 13422 break; /* NOTREACHED */ 13423 } 13424 13425 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13426 if (lun == NULL) { 13427 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13428 io->io_hdr.nexus.targ_mapped_lun)); 13429 fe_done(io); 13430 goto bailout; 13431 } 13432 ctl_softc = lun->ctl_softc; 13433 13434 mtx_lock(&lun->lun_lock); 13435 13436 /* 13437 * Check to see if we have any errors to inject here. We only 13438 * inject errors for commands that don't already have errors set. 13439 */ 13440 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13441 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13442 ctl_inject_error(lun, io); 13443 13444 /* 13445 * XXX KDM how do we treat commands that aren't completed 13446 * successfully? 13447 * 13448 * XXX KDM should we also track I/O latency? 13449 */ 13450 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13451 io->io_hdr.io_type == CTL_IO_SCSI) { 13452 #ifdef CTL_TIME_IO 13453 struct bintime cur_bt; 13454 #endif 13455 int type; 13456 13457 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13458 CTL_FLAG_DATA_IN) 13459 type = CTL_STATS_READ; 13460 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13461 CTL_FLAG_DATA_OUT) 13462 type = CTL_STATS_WRITE; 13463 else 13464 type = CTL_STATS_NO_IO; 13465 13466 lun->stats.ports[targ_port].bytes[type] += 13467 io->scsiio.kern_total_len; 13468 lun->stats.ports[targ_port].operations[type]++; 13469 #ifdef CTL_TIME_IO 13470 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13471 &io->io_hdr.dma_bt); 13472 lun->stats.ports[targ_port].num_dmas[type] += 13473 io->io_hdr.num_dmas; 13474 getbintime(&cur_bt); 13475 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13476 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13477 #endif 13478 } 13479 13480 /* 13481 * Remove this from the OOA queue. 13482 */ 13483 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13484 13485 /* 13486 * Run through the blocked queue on this LUN and see if anything 13487 * has become unblocked, now that this transaction is done. 13488 */ 13489 ctl_check_blocked(lun); 13490 13491 /* 13492 * If the LUN has been invalidated, free it if there is nothing 13493 * left on its OOA queue. 13494 */ 13495 if ((lun->flags & CTL_LUN_INVALID) 13496 && TAILQ_EMPTY(&lun->ooa_queue)) { 13497 mtx_unlock(&lun->lun_lock); 13498 mtx_lock(&ctl_softc->ctl_lock); 13499 ctl_free_lun(lun); 13500 mtx_unlock(&ctl_softc->ctl_lock); 13501 } else 13502 mtx_unlock(&lun->lun_lock); 13503 13504 /* 13505 * If this command has been aborted, make sure we set the status 13506 * properly. The FETD is responsible for freeing the I/O and doing 13507 * whatever it needs to do to clean up its state. 13508 */ 13509 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13510 ctl_set_task_aborted(&io->scsiio); 13511 13512 /* 13513 * We print out status for every task management command. For SCSI 13514 * commands, we filter out any unit attention errors; they happen 13515 * on every boot, and would clutter up the log. Note: task 13516 * management commands aren't printed here, they are printed above, 13517 * since they should never even make it down here. 13518 */ 13519 switch (io->io_hdr.io_type) { 13520 case CTL_IO_SCSI: { 13521 int error_code, sense_key, asc, ascq; 13522 13523 sense_key = 0; 13524 13525 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13526 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13527 /* 13528 * Since this is just for printing, no need to 13529 * show errors here. 13530 */ 13531 scsi_extract_sense_len(&io->scsiio.sense_data, 13532 io->scsiio.sense_len, 13533 &error_code, 13534 &sense_key, 13535 &asc, 13536 &ascq, 13537 /*show_errors*/ 0); 13538 } 13539 13540 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13541 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13542 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13543 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13544 13545 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13546 ctl_softc->skipped_prints++; 13547 } else { 13548 uint32_t skipped_prints; 13549 13550 skipped_prints = ctl_softc->skipped_prints; 13551 13552 ctl_softc->skipped_prints = 0; 13553 ctl_softc->last_print_jiffies = time_uptime; 13554 13555 if (skipped_prints > 0) { 13556 #ifdef NEEDTOPORT 13557 csevent_log(CSC_CTL | CSC_SHELF_SW | 13558 CTL_ERROR_REPORT, 13559 csevent_LogType_Trace, 13560 csevent_Severity_Information, 13561 csevent_AlertLevel_Green, 13562 csevent_FRU_Firmware, 13563 csevent_FRU_Unknown, 13564 "High CTL error volume, %d prints " 13565 "skipped", skipped_prints); 13566 #endif 13567 } 13568 if (bootverbose || verbose > 0) 13569 ctl_io_error_print(io, NULL); 13570 } 13571 } 13572 break; 13573 } 13574 case CTL_IO_TASK: 13575 if (bootverbose || verbose > 0) 13576 ctl_io_error_print(io, NULL); 13577 break; 13578 default: 13579 break; 13580 } 13581 13582 /* 13583 * Tell the FETD or the other shelf controller we're done with this 13584 * command. Note that only SCSI commands get to this point. Task 13585 * management commands are completed above. 13586 * 13587 * We only send status to the other controller if we're in XFER 13588 * mode. In SER_ONLY mode, the I/O is done on the controller that 13589 * received the I/O (from CTL's perspective), and so the status is 13590 * generated there. 13591 * 13592 * XXX KDM if we hold the lock here, we could cause a deadlock 13593 * if the frontend comes back in in this context to queue 13594 * something. 13595 */ 13596 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13597 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13598 union ctl_ha_msg msg; 13599 13600 memset(&msg, 0, sizeof(msg)); 13601 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13602 msg.hdr.original_sc = io->io_hdr.original_sc; 13603 msg.hdr.nexus = io->io_hdr.nexus; 13604 msg.hdr.status = io->io_hdr.status; 13605 msg.scsi.scsi_status = io->scsiio.scsi_status; 13606 msg.scsi.tag_num = io->scsiio.tag_num; 13607 msg.scsi.tag_type = io->scsiio.tag_type; 13608 msg.scsi.sense_len = io->scsiio.sense_len; 13609 msg.scsi.sense_residual = io->scsiio.sense_residual; 13610 msg.scsi.residual = io->scsiio.residual; 13611 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13612 sizeof(io->scsiio.sense_data)); 13613 /* 13614 * We copy this whether or not this is an I/O-related 13615 * command. Otherwise, we'd have to go and check to see 13616 * whether it's a read/write command, and it really isn't 13617 * worth it. 13618 */ 13619 memcpy(&msg.scsi.lbalen, 13620 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13621 sizeof(msg.scsi.lbalen)); 13622 13623 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13624 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13625 /* XXX do something here */ 13626 } 13627 13628 ctl_free_io(io); 13629 } else 13630 fe_done(io); 13631 13632 bailout: 13633 13634 return (CTL_RETVAL_COMPLETE); 13635 } 13636 13637 #ifdef CTL_WITH_CA 13638 /* 13639 * Front end should call this if it doesn't do autosense. When the request 13640 * sense comes back in from the initiator, we'll dequeue this and send it. 13641 */ 13642 int 13643 ctl_queue_sense(union ctl_io *io) 13644 { 13645 struct ctl_lun *lun; 13646 struct ctl_softc *ctl_softc; 13647 uint32_t initidx, targ_lun; 13648 13649 ctl_softc = control_softc; 13650 13651 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13652 13653 /* 13654 * LUN lookup will likely move to the ctl_work_thread() once we 13655 * have our new queueing infrastructure (that doesn't put things on 13656 * a per-LUN queue initially). That is so that we can handle 13657 * things like an INQUIRY to a LUN that we don't have enabled. We 13658 * can't deal with that right now. 13659 */ 13660 mtx_lock(&ctl_softc->ctl_lock); 13661 13662 /* 13663 * If we don't have a LUN for this, just toss the sense 13664 * information. 13665 */ 13666 targ_lun = io->io_hdr.nexus.targ_lun; 13667 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13668 if ((targ_lun < CTL_MAX_LUNS) 13669 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13670 lun = ctl_softc->ctl_luns[targ_lun]; 13671 else 13672 goto bailout; 13673 13674 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13675 13676 mtx_lock(&lun->lun_lock); 13677 /* 13678 * Already have CA set for this LUN...toss the sense information. 13679 */ 13680 if (ctl_is_set(lun->have_ca, initidx)) { 13681 mtx_unlock(&lun->lun_lock); 13682 goto bailout; 13683 } 13684 13685 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13686 ctl_min(sizeof(lun->pending_sense[initidx]), 13687 sizeof(io->scsiio.sense_data))); 13688 ctl_set_mask(lun->have_ca, initidx); 13689 mtx_unlock(&lun->lun_lock); 13690 13691 bailout: 13692 mtx_unlock(&ctl_softc->ctl_lock); 13693 13694 ctl_free_io(io); 13695 13696 return (CTL_RETVAL_COMPLETE); 13697 } 13698 #endif 13699 13700 /* 13701 * Primary command inlet from frontend ports. All SCSI and task I/O 13702 * requests must go through this function. 13703 */ 13704 int 13705 ctl_queue(union ctl_io *io) 13706 { 13707 struct ctl_softc *ctl_softc; 13708 13709 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13710 13711 ctl_softc = control_softc; 13712 13713 #ifdef CTL_TIME_IO 13714 io->io_hdr.start_time = time_uptime; 13715 getbintime(&io->io_hdr.start_bt); 13716 #endif /* CTL_TIME_IO */ 13717 13718 /* Map FE-specific LUN ID into global one. */ 13719 io->io_hdr.nexus.targ_mapped_lun = 13720 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13721 13722 switch (io->io_hdr.io_type) { 13723 case CTL_IO_SCSI: 13724 case CTL_IO_TASK: 13725 ctl_enqueue_incoming(io); 13726 break; 13727 default: 13728 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13729 return (EINVAL); 13730 } 13731 13732 return (CTL_RETVAL_COMPLETE); 13733 } 13734 13735 #ifdef CTL_IO_DELAY 13736 static void 13737 ctl_done_timer_wakeup(void *arg) 13738 { 13739 union ctl_io *io; 13740 13741 io = (union ctl_io *)arg; 13742 ctl_done(io); 13743 } 13744 #endif /* CTL_IO_DELAY */ 13745 13746 void 13747 ctl_done(union ctl_io *io) 13748 { 13749 struct ctl_softc *ctl_softc; 13750 13751 ctl_softc = control_softc; 13752 13753 /* 13754 * Enable this to catch duplicate completion issues. 13755 */ 13756 #if 0 13757 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13758 printf("%s: type %d msg %d cdb %x iptl: " 13759 "%d:%d:%d:%d tag 0x%04x " 13760 "flag %#x status %x\n", 13761 __func__, 13762 io->io_hdr.io_type, 13763 io->io_hdr.msg_type, 13764 io->scsiio.cdb[0], 13765 io->io_hdr.nexus.initid.id, 13766 io->io_hdr.nexus.targ_port, 13767 io->io_hdr.nexus.targ_target.id, 13768 io->io_hdr.nexus.targ_lun, 13769 (io->io_hdr.io_type == 13770 CTL_IO_TASK) ? 13771 io->taskio.tag_num : 13772 io->scsiio.tag_num, 13773 io->io_hdr.flags, 13774 io->io_hdr.status); 13775 } else 13776 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13777 #endif 13778 13779 /* 13780 * This is an internal copy of an I/O, and should not go through 13781 * the normal done processing logic. 13782 */ 13783 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13784 return; 13785 13786 /* 13787 * We need to send a msg to the serializing shelf to finish the IO 13788 * as well. We don't send a finish message to the other shelf if 13789 * this is a task management command. Task management commands 13790 * aren't serialized in the OOA queue, but rather just executed on 13791 * both shelf controllers for commands that originated on that 13792 * controller. 13793 */ 13794 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13795 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13796 union ctl_ha_msg msg_io; 13797 13798 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13799 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13800 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13801 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13802 } 13803 /* continue on to finish IO */ 13804 } 13805 #ifdef CTL_IO_DELAY 13806 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13807 struct ctl_lun *lun; 13808 13809 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13810 13811 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13812 } else { 13813 struct ctl_lun *lun; 13814 13815 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13816 13817 if ((lun != NULL) 13818 && (lun->delay_info.done_delay > 0)) { 13819 struct callout *callout; 13820 13821 callout = (struct callout *)&io->io_hdr.timer_bytes; 13822 callout_init(callout, /*mpsafe*/ 1); 13823 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13824 callout_reset(callout, 13825 lun->delay_info.done_delay * hz, 13826 ctl_done_timer_wakeup, io); 13827 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13828 lun->delay_info.done_delay = 0; 13829 return; 13830 } 13831 } 13832 #endif /* CTL_IO_DELAY */ 13833 13834 ctl_enqueue_done(io); 13835 } 13836 13837 int 13838 ctl_isc(struct ctl_scsiio *ctsio) 13839 { 13840 struct ctl_lun *lun; 13841 int retval; 13842 13843 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13844 13845 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13846 13847 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13848 13849 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13850 13851 return (retval); 13852 } 13853 13854 13855 static void 13856 ctl_work_thread(void *arg) 13857 { 13858 struct ctl_thread *thr = (struct ctl_thread *)arg; 13859 struct ctl_softc *softc = thr->ctl_softc; 13860 union ctl_io *io; 13861 int retval; 13862 13863 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13864 13865 for (;;) { 13866 retval = 0; 13867 13868 /* 13869 * We handle the queues in this order: 13870 * - ISC 13871 * - done queue (to free up resources, unblock other commands) 13872 * - RtR queue 13873 * - incoming queue 13874 * 13875 * If those queues are empty, we break out of the loop and 13876 * go to sleep. 13877 */ 13878 mtx_lock(&thr->queue_lock); 13879 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13880 if (io != NULL) { 13881 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13882 mtx_unlock(&thr->queue_lock); 13883 ctl_handle_isc(io); 13884 continue; 13885 } 13886 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13887 if (io != NULL) { 13888 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13889 /* clear any blocked commands, call fe_done */ 13890 mtx_unlock(&thr->queue_lock); 13891 retval = ctl_process_done(io); 13892 continue; 13893 } 13894 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13895 if (io != NULL) { 13896 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13897 mtx_unlock(&thr->queue_lock); 13898 if (io->io_hdr.io_type == CTL_IO_TASK) 13899 ctl_run_task(io); 13900 else 13901 ctl_scsiio_precheck(softc, &io->scsiio); 13902 continue; 13903 } 13904 if (!ctl_pause_rtr) { 13905 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13906 if (io != NULL) { 13907 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13908 mtx_unlock(&thr->queue_lock); 13909 retval = ctl_scsiio(&io->scsiio); 13910 if (retval != CTL_RETVAL_COMPLETE) 13911 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13912 continue; 13913 } 13914 } 13915 13916 /* Sleep until we have something to do. */ 13917 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13918 } 13919 } 13920 13921 static void 13922 ctl_lun_thread(void *arg) 13923 { 13924 struct ctl_softc *softc = (struct ctl_softc *)arg; 13925 struct ctl_be_lun *be_lun; 13926 int retval; 13927 13928 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13929 13930 for (;;) { 13931 retval = 0; 13932 mtx_lock(&softc->ctl_lock); 13933 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13934 if (be_lun != NULL) { 13935 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13936 mtx_unlock(&softc->ctl_lock); 13937 ctl_create_lun(be_lun); 13938 continue; 13939 } 13940 13941 /* Sleep until we have something to do. */ 13942 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13943 PDROP | PRIBIO, "-", 0); 13944 } 13945 } 13946 13947 static void 13948 ctl_enqueue_incoming(union ctl_io *io) 13949 { 13950 struct ctl_softc *softc = control_softc; 13951 struct ctl_thread *thr; 13952 u_int idx; 13953 13954 idx = (io->io_hdr.nexus.targ_port * 127 + 13955 io->io_hdr.nexus.initid.id) % worker_threads; 13956 thr = &softc->threads[idx]; 13957 mtx_lock(&thr->queue_lock); 13958 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13959 mtx_unlock(&thr->queue_lock); 13960 wakeup(thr); 13961 } 13962 13963 static void 13964 ctl_enqueue_rtr(union ctl_io *io) 13965 { 13966 struct ctl_softc *softc = control_softc; 13967 struct ctl_thread *thr; 13968 13969 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13970 mtx_lock(&thr->queue_lock); 13971 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13972 mtx_unlock(&thr->queue_lock); 13973 wakeup(thr); 13974 } 13975 13976 static void 13977 ctl_enqueue_done(union ctl_io *io) 13978 { 13979 struct ctl_softc *softc = control_softc; 13980 struct ctl_thread *thr; 13981 13982 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13983 mtx_lock(&thr->queue_lock); 13984 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13985 mtx_unlock(&thr->queue_lock); 13986 wakeup(thr); 13987 } 13988 13989 static void 13990 ctl_enqueue_isc(union ctl_io *io) 13991 { 13992 struct ctl_softc *softc = control_softc; 13993 struct ctl_thread *thr; 13994 13995 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13996 mtx_lock(&thr->queue_lock); 13997 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13998 mtx_unlock(&thr->queue_lock); 13999 wakeup(thr); 14000 } 14001 14002 /* Initialization and failover */ 14003 14004 void 14005 ctl_init_isc_msg(void) 14006 { 14007 printf("CTL: Still calling this thing\n"); 14008 } 14009 14010 /* 14011 * Init component 14012 * Initializes component into configuration defined by bootMode 14013 * (see hasc-sv.c) 14014 * returns hasc_Status: 14015 * OK 14016 * ERROR - fatal error 14017 */ 14018 static ctl_ha_comp_status 14019 ctl_isc_init(struct ctl_ha_component *c) 14020 { 14021 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14022 14023 c->status = ret; 14024 return ret; 14025 } 14026 14027 /* Start component 14028 * Starts component in state requested. If component starts successfully, 14029 * it must set its own state to the requestrd state 14030 * When requested state is HASC_STATE_HA, the component may refine it 14031 * by adding _SLAVE or _MASTER flags. 14032 * Currently allowed state transitions are: 14033 * UNKNOWN->HA - initial startup 14034 * UNKNOWN->SINGLE - initial startup when no parter detected 14035 * HA->SINGLE - failover 14036 * returns ctl_ha_comp_status: 14037 * OK - component successfully started in requested state 14038 * FAILED - could not start the requested state, failover may 14039 * be possible 14040 * ERROR - fatal error detected, no future startup possible 14041 */ 14042 static ctl_ha_comp_status 14043 ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14044 { 14045 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14046 14047 printf("%s: go\n", __func__); 14048 14049 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14050 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14051 ctl_is_single = 0; 14052 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14053 != CTL_HA_STATUS_SUCCESS) { 14054 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14055 ret = CTL_HA_COMP_STATUS_ERROR; 14056 } 14057 } else if (CTL_HA_STATE_IS_HA(c->state) 14058 && CTL_HA_STATE_IS_SINGLE(state)){ 14059 // HA->SINGLE transition 14060 ctl_failover(); 14061 ctl_is_single = 1; 14062 } else { 14063 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14064 c->state, state); 14065 ret = CTL_HA_COMP_STATUS_ERROR; 14066 } 14067 if (CTL_HA_STATE_IS_SINGLE(state)) 14068 ctl_is_single = 1; 14069 14070 c->state = state; 14071 c->status = ret; 14072 return ret; 14073 } 14074 14075 /* 14076 * Quiesce component 14077 * The component must clear any error conditions (set status to OK) and 14078 * prepare itself to another Start call 14079 * returns ctl_ha_comp_status: 14080 * OK 14081 * ERROR 14082 */ 14083 static ctl_ha_comp_status 14084 ctl_isc_quiesce(struct ctl_ha_component *c) 14085 { 14086 int ret = CTL_HA_COMP_STATUS_OK; 14087 14088 ctl_pause_rtr = 1; 14089 c->status = ret; 14090 return ret; 14091 } 14092 14093 struct ctl_ha_component ctl_ha_component_ctlisc = 14094 { 14095 .name = "CTL ISC", 14096 .state = CTL_HA_STATE_UNKNOWN, 14097 .init = ctl_isc_init, 14098 .start = ctl_isc_start, 14099 .quiesce = ctl_isc_quiesce 14100 }; 14101 14102 /* 14103 * vim: ts=8 14104 */ 14105