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*/ SCP_WCE | SCP_RCD, 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*/SCP_QUEUE_ALG_RESTRICTED, 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*/SCP_QUEUE_ALG_MASK, 296 /*eca_and_aen*/SCP_SWP, 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 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 324 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 325 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 326 */ 327 #define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 328 329 static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 330 int param); 331 static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 332 static int ctl_init(void); 333 void ctl_shutdown(void); 334 static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 335 static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 336 static void ctl_ioctl_online(void *arg); 337 static void ctl_ioctl_offline(void *arg); 338 static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 339 static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 340 static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 341 static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 342 static int ctl_ioctl_submit_wait(union ctl_io *io); 343 static void ctl_ioctl_datamove(union ctl_io *io); 344 static void ctl_ioctl_done(union ctl_io *io); 345 static void ctl_ioctl_hard_startstop_callback(void *arg, 346 struct cfi_metatask *metatask); 347 static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 348 static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 349 struct ctl_ooa *ooa_hdr, 350 struct ctl_ooa_entry *kern_entries); 351 static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 352 struct thread *td); 353 static uint32_t ctl_map_lun(int port_num, uint32_t lun); 354 static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 355 #ifdef unused 356 static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 357 uint32_t targ_target, uint32_t targ_lun, 358 int can_wait); 359 static void ctl_kfree_io(union ctl_io *io); 360 #endif /* unused */ 361 static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 362 struct ctl_be_lun *be_lun, struct ctl_id target_id); 363 static int ctl_free_lun(struct ctl_lun *lun); 364 static void ctl_create_lun(struct ctl_be_lun *be_lun); 365 /** 366 static void ctl_failover_change_pages(struct ctl_softc *softc, 367 struct ctl_scsiio *ctsio, int master); 368 **/ 369 370 static int ctl_do_mode_select(union ctl_io *io); 371 static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 372 uint64_t res_key, uint64_t sa_res_key, 373 uint8_t type, uint32_t residx, 374 struct ctl_scsiio *ctsio, 375 struct scsi_per_res_out *cdb, 376 struct scsi_per_res_out_parms* param); 377 static void ctl_pro_preempt_other(struct ctl_lun *lun, 378 union ctl_ha_msg *msg); 379 static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 380 static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 381 static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 382 static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 383 static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 384 static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 385 static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 386 int alloc_len); 387 static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 388 int alloc_len); 389 static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 390 static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 391 static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 392 static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 393 static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 394 static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 395 static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 396 union ctl_io *pending_io, union ctl_io *ooa_io); 397 static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 398 union ctl_io *starting_io); 399 static int ctl_check_blocked(struct ctl_lun *lun); 400 static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 401 struct ctl_lun *lun, 402 const struct ctl_cmd_entry *entry, 403 struct ctl_scsiio *ctsio); 404 //static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 405 static void ctl_failover(void); 406 static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 407 struct ctl_scsiio *ctsio); 408 static int ctl_scsiio(struct ctl_scsiio *ctsio); 409 410 static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 411 static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 412 ctl_ua_type ua_type); 413 static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 414 ctl_ua_type ua_type); 415 static int ctl_abort_task(union ctl_io *io); 416 static int ctl_abort_task_set(union ctl_io *io); 417 static int ctl_i_t_nexus_reset(union ctl_io *io); 418 static void ctl_run_task(union ctl_io *io); 419 #ifdef CTL_IO_DELAY 420 static void ctl_datamove_timer_wakeup(void *arg); 421 static void ctl_done_timer_wakeup(void *arg); 422 #endif /* CTL_IO_DELAY */ 423 424 static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 425 static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 426 static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 427 static void ctl_datamove_remote_write(union ctl_io *io); 428 static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 429 static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 430 static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 431 static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 432 ctl_ha_dt_cb callback); 433 static void ctl_datamove_remote_read(union ctl_io *io); 434 static void ctl_datamove_remote(union ctl_io *io); 435 static int ctl_process_done(union ctl_io *io); 436 static void ctl_lun_thread(void *arg); 437 static void ctl_work_thread(void *arg); 438 static void ctl_enqueue_incoming(union ctl_io *io); 439 static void ctl_enqueue_rtr(union ctl_io *io); 440 static void ctl_enqueue_done(union ctl_io *io); 441 static void ctl_enqueue_isc(union ctl_io *io); 442 static const struct ctl_cmd_entry * 443 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 444 static const struct ctl_cmd_entry * 445 ctl_validate_command(struct ctl_scsiio *ctsio); 446 static int ctl_cmd_applicable(uint8_t lun_type, 447 const struct ctl_cmd_entry *entry); 448 449 /* 450 * Load the serialization table. This isn't very pretty, but is probably 451 * the easiest way to do it. 452 */ 453 #include "ctl_ser_table.c" 454 455 /* 456 * We only need to define open, close and ioctl routines for this driver. 457 */ 458 static struct cdevsw ctl_cdevsw = { 459 .d_version = D_VERSION, 460 .d_flags = 0, 461 .d_open = ctl_open, 462 .d_close = ctl_close, 463 .d_ioctl = ctl_ioctl, 464 .d_name = "ctl", 465 }; 466 467 468 MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 469 MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 470 471 static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 472 473 static moduledata_t ctl_moduledata = { 474 "ctl", 475 ctl_module_event_handler, 476 NULL 477 }; 478 479 DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 480 MODULE_VERSION(ctl, 1); 481 482 static struct ctl_frontend ioctl_frontend = 483 { 484 .name = "ioctl", 485 }; 486 487 static void 488 ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 489 union ctl_ha_msg *msg_info) 490 { 491 struct ctl_scsiio *ctsio; 492 493 if (msg_info->hdr.original_sc == NULL) { 494 printf("%s: original_sc == NULL!\n", __func__); 495 /* XXX KDM now what? */ 496 return; 497 } 498 499 ctsio = &msg_info->hdr.original_sc->scsiio; 500 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 501 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 502 ctsio->io_hdr.status = msg_info->hdr.status; 503 ctsio->scsi_status = msg_info->scsi.scsi_status; 504 ctsio->sense_len = msg_info->scsi.sense_len; 505 ctsio->sense_residual = msg_info->scsi.sense_residual; 506 ctsio->residual = msg_info->scsi.residual; 507 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 508 sizeof(ctsio->sense_data)); 509 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 510 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 511 ctl_enqueue_isc((union ctl_io *)ctsio); 512 } 513 514 static void 515 ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 516 union ctl_ha_msg *msg_info) 517 { 518 struct ctl_scsiio *ctsio; 519 520 if (msg_info->hdr.serializing_sc == NULL) { 521 printf("%s: serializing_sc == NULL!\n", __func__); 522 /* XXX KDM now what? */ 523 return; 524 } 525 526 ctsio = &msg_info->hdr.serializing_sc->scsiio; 527 #if 0 528 /* 529 * Attempt to catch the situation where an I/O has 530 * been freed, and we're using it again. 531 */ 532 if (ctsio->io_hdr.io_type == 0xff) { 533 union ctl_io *tmp_io; 534 tmp_io = (union ctl_io *)ctsio; 535 printf("%s: %p use after free!\n", __func__, 536 ctsio); 537 printf("%s: type %d msg %d cdb %x iptl: " 538 "%d:%d:%d:%d tag 0x%04x " 539 "flag %#x status %x\n", 540 __func__, 541 tmp_io->io_hdr.io_type, 542 tmp_io->io_hdr.msg_type, 543 tmp_io->scsiio.cdb[0], 544 tmp_io->io_hdr.nexus.initid.id, 545 tmp_io->io_hdr.nexus.targ_port, 546 tmp_io->io_hdr.nexus.targ_target.id, 547 tmp_io->io_hdr.nexus.targ_lun, 548 (tmp_io->io_hdr.io_type == 549 CTL_IO_TASK) ? 550 tmp_io->taskio.tag_num : 551 tmp_io->scsiio.tag_num, 552 tmp_io->io_hdr.flags, 553 tmp_io->io_hdr.status); 554 } 555 #endif 556 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 557 ctl_enqueue_isc((union ctl_io *)ctsio); 558 } 559 560 /* 561 * ISC (Inter Shelf Communication) event handler. Events from the HA 562 * subsystem come in here. 563 */ 564 static void 565 ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 566 { 567 struct ctl_softc *ctl_softc; 568 union ctl_io *io; 569 struct ctl_prio *presio; 570 ctl_ha_status isc_status; 571 572 ctl_softc = control_softc; 573 io = NULL; 574 575 576 #if 0 577 printf("CTL: Isc Msg event %d\n", event); 578 #endif 579 if (event == CTL_HA_EVT_MSG_RECV) { 580 union ctl_ha_msg msg_info; 581 582 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 583 sizeof(msg_info), /*wait*/ 0); 584 #if 0 585 printf("CTL: msg_type %d\n", msg_info.msg_type); 586 #endif 587 if (isc_status != 0) { 588 printf("Error receiving message, status = %d\n", 589 isc_status); 590 return; 591 } 592 593 switch (msg_info.hdr.msg_type) { 594 case CTL_MSG_SERIALIZE: 595 #if 0 596 printf("Serialize\n"); 597 #endif 598 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 599 if (io == NULL) { 600 printf("ctl_isc_event_handler: can't allocate " 601 "ctl_io!\n"); 602 /* Bad Juju */ 603 /* Need to set busy and send msg back */ 604 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 605 msg_info.hdr.status = CTL_SCSI_ERROR; 606 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 607 msg_info.scsi.sense_len = 0; 608 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 609 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 610 } 611 goto bailout; 612 } 613 ctl_zero_io(io); 614 // populate ctsio from msg_info 615 io->io_hdr.io_type = CTL_IO_SCSI; 616 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 617 io->io_hdr.original_sc = msg_info.hdr.original_sc; 618 #if 0 619 printf("pOrig %x\n", (int)msg_info.original_sc); 620 #endif 621 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 622 CTL_FLAG_IO_ACTIVE; 623 /* 624 * If we're in serialization-only mode, we don't 625 * want to go through full done processing. Thus 626 * the COPY flag. 627 * 628 * XXX KDM add another flag that is more specific. 629 */ 630 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 631 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 632 io->io_hdr.nexus = msg_info.hdr.nexus; 633 #if 0 634 printf("targ %d, port %d, iid %d, lun %d\n", 635 io->io_hdr.nexus.targ_target.id, 636 io->io_hdr.nexus.targ_port, 637 io->io_hdr.nexus.initid.id, 638 io->io_hdr.nexus.targ_lun); 639 #endif 640 io->scsiio.tag_num = msg_info.scsi.tag_num; 641 io->scsiio.tag_type = msg_info.scsi.tag_type; 642 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 643 CTL_MAX_CDBLEN); 644 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 645 const struct ctl_cmd_entry *entry; 646 647 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 648 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 649 io->io_hdr.flags |= 650 entry->flags & CTL_FLAG_DATA_MASK; 651 } 652 ctl_enqueue_isc(io); 653 break; 654 655 /* Performed on the Originating SC, XFER mode only */ 656 case CTL_MSG_DATAMOVE: { 657 struct ctl_sg_entry *sgl; 658 int i, j; 659 660 io = msg_info.hdr.original_sc; 661 if (io == NULL) { 662 printf("%s: original_sc == NULL!\n", __func__); 663 /* XXX KDM do something here */ 664 break; 665 } 666 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 667 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 668 /* 669 * Keep track of this, we need to send it back over 670 * when the datamove is complete. 671 */ 672 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 673 674 if (msg_info.dt.sg_sequence == 0) { 675 /* 676 * XXX KDM we use the preallocated S/G list 677 * here, but we'll need to change this to 678 * dynamic allocation if we need larger S/G 679 * lists. 680 */ 681 if (msg_info.dt.kern_sg_entries > 682 sizeof(io->io_hdr.remote_sglist) / 683 sizeof(io->io_hdr.remote_sglist[0])) { 684 printf("%s: number of S/G entries " 685 "needed %u > allocated num %zd\n", 686 __func__, 687 msg_info.dt.kern_sg_entries, 688 sizeof(io->io_hdr.remote_sglist)/ 689 sizeof(io->io_hdr.remote_sglist[0])); 690 691 /* 692 * XXX KDM send a message back to 693 * the other side to shut down the 694 * DMA. The error will come back 695 * through via the normal channel. 696 */ 697 break; 698 } 699 sgl = io->io_hdr.remote_sglist; 700 memset(sgl, 0, 701 sizeof(io->io_hdr.remote_sglist)); 702 703 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 704 705 io->scsiio.kern_sg_entries = 706 msg_info.dt.kern_sg_entries; 707 io->scsiio.rem_sg_entries = 708 msg_info.dt.kern_sg_entries; 709 io->scsiio.kern_data_len = 710 msg_info.dt.kern_data_len; 711 io->scsiio.kern_total_len = 712 msg_info.dt.kern_total_len; 713 io->scsiio.kern_data_resid = 714 msg_info.dt.kern_data_resid; 715 io->scsiio.kern_rel_offset = 716 msg_info.dt.kern_rel_offset; 717 /* 718 * Clear out per-DMA flags. 719 */ 720 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 721 /* 722 * Add per-DMA flags that are set for this 723 * particular DMA request. 724 */ 725 io->io_hdr.flags |= msg_info.dt.flags & 726 CTL_FLAG_RDMA_MASK; 727 } else 728 sgl = (struct ctl_sg_entry *) 729 io->scsiio.kern_data_ptr; 730 731 for (i = msg_info.dt.sent_sg_entries, j = 0; 732 i < (msg_info.dt.sent_sg_entries + 733 msg_info.dt.cur_sg_entries); i++, j++) { 734 sgl[i].addr = msg_info.dt.sg_list[j].addr; 735 sgl[i].len = msg_info.dt.sg_list[j].len; 736 737 #if 0 738 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 739 __func__, 740 msg_info.dt.sg_list[j].addr, 741 msg_info.dt.sg_list[j].len, 742 sgl[i].addr, sgl[i].len, j, i); 743 #endif 744 } 745 #if 0 746 memcpy(&sgl[msg_info.dt.sent_sg_entries], 747 msg_info.dt.sg_list, 748 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 749 #endif 750 751 /* 752 * If this is the last piece of the I/O, we've got 753 * the full S/G list. Queue processing in the thread. 754 * Otherwise wait for the next piece. 755 */ 756 if (msg_info.dt.sg_last != 0) 757 ctl_enqueue_isc(io); 758 break; 759 } 760 /* Performed on the Serializing (primary) SC, XFER mode only */ 761 case CTL_MSG_DATAMOVE_DONE: { 762 if (msg_info.hdr.serializing_sc == NULL) { 763 printf("%s: serializing_sc == NULL!\n", 764 __func__); 765 /* XXX KDM now what? */ 766 break; 767 } 768 /* 769 * We grab the sense information here in case 770 * there was a failure, so we can return status 771 * back to the initiator. 772 */ 773 io = msg_info.hdr.serializing_sc; 774 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 775 io->io_hdr.status = msg_info.hdr.status; 776 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 777 io->scsiio.sense_len = msg_info.scsi.sense_len; 778 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 779 io->io_hdr.port_status = msg_info.scsi.fetd_status; 780 io->scsiio.residual = msg_info.scsi.residual; 781 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 782 sizeof(io->scsiio.sense_data)); 783 ctl_enqueue_isc(io); 784 break; 785 } 786 787 /* Preformed on Originating SC, SER_ONLY mode */ 788 case CTL_MSG_R2R: 789 io = msg_info.hdr.original_sc; 790 if (io == NULL) { 791 printf("%s: Major Bummer\n", __func__); 792 return; 793 } else { 794 #if 0 795 printf("pOrig %x\n",(int) ctsio); 796 #endif 797 } 798 io->io_hdr.msg_type = CTL_MSG_R2R; 799 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 800 ctl_enqueue_isc(io); 801 break; 802 803 /* 804 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 805 * mode. 806 * Performed on the Originating (i.e. secondary) SC in XFER 807 * mode 808 */ 809 case CTL_MSG_FINISH_IO: 810 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 811 ctl_isc_handler_finish_xfer(ctl_softc, 812 &msg_info); 813 else 814 ctl_isc_handler_finish_ser_only(ctl_softc, 815 &msg_info); 816 break; 817 818 /* Preformed on Originating SC */ 819 case CTL_MSG_BAD_JUJU: 820 io = msg_info.hdr.original_sc; 821 if (io == NULL) { 822 printf("%s: Bad JUJU!, original_sc is NULL!\n", 823 __func__); 824 break; 825 } 826 ctl_copy_sense_data(&msg_info, io); 827 /* 828 * IO should have already been cleaned up on other 829 * SC so clear this flag so we won't send a message 830 * back to finish the IO there. 831 */ 832 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 833 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 834 835 /* io = msg_info.hdr.serializing_sc; */ 836 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 837 ctl_enqueue_isc(io); 838 break; 839 840 /* Handle resets sent from the other side */ 841 case CTL_MSG_MANAGE_TASKS: { 842 struct ctl_taskio *taskio; 843 taskio = (struct ctl_taskio *)ctl_alloc_io( 844 (void *)ctl_softc->othersc_pool); 845 if (taskio == NULL) { 846 printf("ctl_isc_event_handler: can't allocate " 847 "ctl_io!\n"); 848 /* Bad Juju */ 849 /* should I just call the proper reset func 850 here??? */ 851 goto bailout; 852 } 853 ctl_zero_io((union ctl_io *)taskio); 854 taskio->io_hdr.io_type = CTL_IO_TASK; 855 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 856 taskio->io_hdr.nexus = msg_info.hdr.nexus; 857 taskio->task_action = msg_info.task.task_action; 858 taskio->tag_num = msg_info.task.tag_num; 859 taskio->tag_type = msg_info.task.tag_type; 860 #ifdef CTL_TIME_IO 861 taskio->io_hdr.start_time = time_uptime; 862 getbintime(&taskio->io_hdr.start_bt); 863 #if 0 864 cs_prof_gettime(&taskio->io_hdr.start_ticks); 865 #endif 866 #endif /* CTL_TIME_IO */ 867 ctl_run_task((union ctl_io *)taskio); 868 break; 869 } 870 /* Persistent Reserve action which needs attention */ 871 case CTL_MSG_PERS_ACTION: 872 presio = (struct ctl_prio *)ctl_alloc_io( 873 (void *)ctl_softc->othersc_pool); 874 if (presio == NULL) { 875 printf("ctl_isc_event_handler: can't allocate " 876 "ctl_io!\n"); 877 /* Bad Juju */ 878 /* Need to set busy and send msg back */ 879 goto bailout; 880 } 881 ctl_zero_io((union ctl_io *)presio); 882 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 883 presio->pr_msg = msg_info.pr; 884 ctl_enqueue_isc((union ctl_io *)presio); 885 break; 886 case CTL_MSG_SYNC_FE: 887 rcv_sync_msg = 1; 888 break; 889 case CTL_MSG_APS_LOCK: { 890 // It's quicker to execute this then to 891 // queue it. 892 struct ctl_lun *lun; 893 struct ctl_page_index *page_index; 894 struct copan_aps_subpage *current_sp; 895 uint32_t targ_lun; 896 897 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 898 lun = ctl_softc->ctl_luns[targ_lun]; 899 mtx_lock(&lun->lun_lock); 900 page_index = &lun->mode_pages.index[index_to_aps_page]; 901 current_sp = (struct copan_aps_subpage *) 902 (page_index->page_data + 903 (page_index->page_len * CTL_PAGE_CURRENT)); 904 905 current_sp->lock_active = msg_info.aps.lock_flag; 906 mtx_unlock(&lun->lun_lock); 907 break; 908 } 909 default: 910 printf("How did I get here?\n"); 911 } 912 } else if (event == CTL_HA_EVT_MSG_SENT) { 913 if (param != CTL_HA_STATUS_SUCCESS) { 914 printf("Bad status from ctl_ha_msg_send status %d\n", 915 param); 916 } 917 return; 918 } else if (event == CTL_HA_EVT_DISCONNECT) { 919 printf("CTL: Got a disconnect from Isc\n"); 920 return; 921 } else { 922 printf("ctl_isc_event_handler: Unknown event %d\n", event); 923 return; 924 } 925 926 bailout: 927 return; 928 } 929 930 static void 931 ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 932 { 933 struct scsi_sense_data *sense; 934 935 sense = &dest->scsiio.sense_data; 936 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 937 dest->scsiio.scsi_status = src->scsi.scsi_status; 938 dest->scsiio.sense_len = src->scsi.sense_len; 939 dest->io_hdr.status = src->hdr.status; 940 } 941 942 static int 943 ctl_init(void) 944 { 945 struct ctl_softc *softc; 946 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 947 struct ctl_port *port; 948 uint8_t sc_id =0; 949 int i, error, retval; 950 //int isc_retval; 951 952 retval = 0; 953 ctl_pause_rtr = 0; 954 rcv_sync_msg = 0; 955 956 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 957 M_WAITOK | M_ZERO); 958 softc = control_softc; 959 960 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 961 "cam/ctl"); 962 963 softc->dev->si_drv1 = softc; 964 965 /* 966 * By default, return a "bad LUN" peripheral qualifier for unknown 967 * LUNs. The user can override this default using the tunable or 968 * sysctl. See the comment in ctl_inquiry_std() for more details. 969 */ 970 softc->inquiry_pq_no_lun = 1; 971 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 972 &softc->inquiry_pq_no_lun); 973 sysctl_ctx_init(&softc->sysctl_ctx); 974 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 975 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 976 CTLFLAG_RD, 0, "CAM Target Layer"); 977 978 if (softc->sysctl_tree == NULL) { 979 printf("%s: unable to allocate sysctl tree\n", __func__); 980 destroy_dev(softc->dev); 981 free(control_softc, M_DEVBUF); 982 control_softc = NULL; 983 return (ENOMEM); 984 } 985 986 SYSCTL_ADD_INT(&softc->sysctl_ctx, 987 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 988 "inquiry_pq_no_lun", CTLFLAG_RW, 989 &softc->inquiry_pq_no_lun, 0, 990 "Report no lun possible for invalid LUNs"); 991 992 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 993 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 994 softc->open_count = 0; 995 996 /* 997 * Default to actually sending a SYNCHRONIZE CACHE command down to 998 * the drive. 999 */ 1000 softc->flags = CTL_FLAG_REAL_SYNC; 1001 1002 /* 1003 * In Copan's HA scheme, the "master" and "slave" roles are 1004 * figured out through the slot the controller is in. Although it 1005 * is an active/active system, someone has to be in charge. 1006 */ 1007 #ifdef NEEDTOPORT 1008 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1009 #endif 1010 1011 if (sc_id == 0) { 1012 softc->flags |= CTL_FLAG_MASTER_SHELF; 1013 persis_offset = 0; 1014 } else 1015 persis_offset = CTL_MAX_INITIATORS; 1016 1017 /* 1018 * XXX KDM need to figure out where we want to get our target ID 1019 * and WWID. Is it different on each port? 1020 */ 1021 softc->target.id = 0; 1022 softc->target.wwid[0] = 0x12345678; 1023 softc->target.wwid[1] = 0x87654321; 1024 STAILQ_INIT(&softc->lun_list); 1025 STAILQ_INIT(&softc->pending_lun_queue); 1026 STAILQ_INIT(&softc->fe_list); 1027 STAILQ_INIT(&softc->port_list); 1028 STAILQ_INIT(&softc->be_list); 1029 STAILQ_INIT(&softc->io_pools); 1030 ctl_tpc_init(softc); 1031 1032 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1033 &internal_pool)!= 0){ 1034 printf("ctl: can't allocate %d entry internal pool, " 1035 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1036 return (ENOMEM); 1037 } 1038 1039 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1040 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1041 printf("ctl: can't allocate %d entry emergency pool, " 1042 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1043 ctl_pool_free(internal_pool); 1044 return (ENOMEM); 1045 } 1046 1047 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1048 &other_pool) != 0) 1049 { 1050 printf("ctl: can't allocate %d entry other SC pool, " 1051 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1052 ctl_pool_free(internal_pool); 1053 ctl_pool_free(emergency_pool); 1054 return (ENOMEM); 1055 } 1056 1057 softc->internal_pool = internal_pool; 1058 softc->emergency_pool = emergency_pool; 1059 softc->othersc_pool = other_pool; 1060 1061 if (worker_threads <= 0) 1062 worker_threads = max(1, mp_ncpus / 4); 1063 if (worker_threads > CTL_MAX_THREADS) 1064 worker_threads = CTL_MAX_THREADS; 1065 1066 for (i = 0; i < worker_threads; i++) { 1067 struct ctl_thread *thr = &softc->threads[i]; 1068 1069 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1070 thr->ctl_softc = softc; 1071 STAILQ_INIT(&thr->incoming_queue); 1072 STAILQ_INIT(&thr->rtr_queue); 1073 STAILQ_INIT(&thr->done_queue); 1074 STAILQ_INIT(&thr->isc_queue); 1075 1076 error = kproc_kthread_add(ctl_work_thread, thr, 1077 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1078 if (error != 0) { 1079 printf("error creating CTL work thread!\n"); 1080 ctl_pool_free(internal_pool); 1081 ctl_pool_free(emergency_pool); 1082 ctl_pool_free(other_pool); 1083 return (error); 1084 } 1085 } 1086 error = kproc_kthread_add(ctl_lun_thread, softc, 1087 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1088 if (error != 0) { 1089 printf("error creating CTL lun thread!\n"); 1090 ctl_pool_free(internal_pool); 1091 ctl_pool_free(emergency_pool); 1092 ctl_pool_free(other_pool); 1093 return (error); 1094 } 1095 if (bootverbose) 1096 printf("ctl: CAM Target Layer loaded\n"); 1097 1098 /* 1099 * Initialize the ioctl front end. 1100 */ 1101 ctl_frontend_register(&ioctl_frontend); 1102 port = &softc->ioctl_info.port; 1103 port->frontend = &ioctl_frontend; 1104 sprintf(softc->ioctl_info.port_name, "ioctl"); 1105 port->port_type = CTL_PORT_IOCTL; 1106 port->num_requested_ctl_io = 100; 1107 port->port_name = softc->ioctl_info.port_name; 1108 port->port_online = ctl_ioctl_online; 1109 port->port_offline = ctl_ioctl_offline; 1110 port->onoff_arg = &softc->ioctl_info; 1111 port->lun_enable = ctl_ioctl_lun_enable; 1112 port->lun_disable = ctl_ioctl_lun_disable; 1113 port->targ_lun_arg = &softc->ioctl_info; 1114 port->fe_datamove = ctl_ioctl_datamove; 1115 port->fe_done = ctl_ioctl_done; 1116 port->max_targets = 15; 1117 port->max_target_id = 15; 1118 1119 if (ctl_port_register(&softc->ioctl_info.port, 1120 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1121 printf("ctl: ioctl front end registration failed, will " 1122 "continue anyway\n"); 1123 } 1124 1125 #ifdef CTL_IO_DELAY 1126 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1127 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1128 sizeof(struct callout), CTL_TIMER_BYTES); 1129 return (EINVAL); 1130 } 1131 #endif /* CTL_IO_DELAY */ 1132 1133 return (0); 1134 } 1135 1136 void 1137 ctl_shutdown(void) 1138 { 1139 struct ctl_softc *softc; 1140 struct ctl_lun *lun, *next_lun; 1141 struct ctl_io_pool *pool; 1142 1143 softc = (struct ctl_softc *)control_softc; 1144 1145 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1146 printf("ctl: ioctl front end deregistration failed\n"); 1147 1148 mtx_lock(&softc->ctl_lock); 1149 1150 /* 1151 * Free up each LUN. 1152 */ 1153 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1154 next_lun = STAILQ_NEXT(lun, links); 1155 ctl_free_lun(lun); 1156 } 1157 1158 mtx_unlock(&softc->ctl_lock); 1159 1160 ctl_frontend_deregister(&ioctl_frontend); 1161 1162 /* 1163 * This will rip the rug out from under any FETDs or anyone else 1164 * that has a pool allocated. Since we increment our module 1165 * refcount any time someone outside the main CTL module allocates 1166 * a pool, we shouldn't have any problems here. The user won't be 1167 * able to unload the CTL module until client modules have 1168 * successfully unloaded. 1169 */ 1170 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1171 ctl_pool_free(pool); 1172 1173 #if 0 1174 ctl_shutdown_thread(softc->work_thread); 1175 mtx_destroy(&softc->queue_lock); 1176 #endif 1177 1178 ctl_tpc_shutdown(softc); 1179 mtx_destroy(&softc->pool_lock); 1180 mtx_destroy(&softc->ctl_lock); 1181 1182 destroy_dev(softc->dev); 1183 1184 sysctl_ctx_free(&softc->sysctl_ctx); 1185 1186 free(control_softc, M_DEVBUF); 1187 control_softc = NULL; 1188 1189 if (bootverbose) 1190 printf("ctl: CAM Target Layer unloaded\n"); 1191 } 1192 1193 static int 1194 ctl_module_event_handler(module_t mod, int what, void *arg) 1195 { 1196 1197 switch (what) { 1198 case MOD_LOAD: 1199 return (ctl_init()); 1200 case MOD_UNLOAD: 1201 return (EBUSY); 1202 default: 1203 return (EOPNOTSUPP); 1204 } 1205 } 1206 1207 /* 1208 * XXX KDM should we do some access checks here? Bump a reference count to 1209 * prevent a CTL module from being unloaded while someone has it open? 1210 */ 1211 static int 1212 ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1213 { 1214 return (0); 1215 } 1216 1217 static int 1218 ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1219 { 1220 return (0); 1221 } 1222 1223 int 1224 ctl_port_enable(ctl_port_type port_type) 1225 { 1226 struct ctl_softc *softc; 1227 struct ctl_port *port; 1228 1229 if (ctl_is_single == 0) { 1230 union ctl_ha_msg msg_info; 1231 int isc_retval; 1232 1233 #if 0 1234 printf("%s: HA mode, synchronizing frontend enable\n", 1235 __func__); 1236 #endif 1237 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1238 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1239 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1240 printf("Sync msg send error retval %d\n", isc_retval); 1241 } 1242 if (!rcv_sync_msg) { 1243 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1244 sizeof(msg_info), 1); 1245 } 1246 #if 0 1247 printf("CTL:Frontend Enable\n"); 1248 } else { 1249 printf("%s: single mode, skipping frontend synchronization\n", 1250 __func__); 1251 #endif 1252 } 1253 1254 softc = control_softc; 1255 1256 STAILQ_FOREACH(port, &softc->port_list, links) { 1257 if (port_type & port->port_type) 1258 { 1259 #if 0 1260 printf("port %d\n", port->targ_port); 1261 #endif 1262 ctl_port_online(port); 1263 } 1264 } 1265 1266 return (0); 1267 } 1268 1269 int 1270 ctl_port_disable(ctl_port_type port_type) 1271 { 1272 struct ctl_softc *softc; 1273 struct ctl_port *port; 1274 1275 softc = control_softc; 1276 1277 STAILQ_FOREACH(port, &softc->port_list, links) { 1278 if (port_type & port->port_type) 1279 ctl_port_offline(port); 1280 } 1281 1282 return (0); 1283 } 1284 1285 /* 1286 * Returns 0 for success, 1 for failure. 1287 * Currently the only failure mode is if there aren't enough entries 1288 * allocated. So, in case of a failure, look at num_entries_dropped, 1289 * reallocate and try again. 1290 */ 1291 int 1292 ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1293 int *num_entries_filled, int *num_entries_dropped, 1294 ctl_port_type port_type, int no_virtual) 1295 { 1296 struct ctl_softc *softc; 1297 struct ctl_port *port; 1298 int entries_dropped, entries_filled; 1299 int retval; 1300 int i; 1301 1302 softc = control_softc; 1303 1304 retval = 0; 1305 entries_filled = 0; 1306 entries_dropped = 0; 1307 1308 i = 0; 1309 mtx_lock(&softc->ctl_lock); 1310 STAILQ_FOREACH(port, &softc->port_list, links) { 1311 struct ctl_port_entry *entry; 1312 1313 if ((port->port_type & port_type) == 0) 1314 continue; 1315 1316 if ((no_virtual != 0) 1317 && (port->virtual_port != 0)) 1318 continue; 1319 1320 if (entries_filled >= num_entries_alloced) { 1321 entries_dropped++; 1322 continue; 1323 } 1324 entry = &entries[i]; 1325 1326 entry->port_type = port->port_type; 1327 strlcpy(entry->port_name, port->port_name, 1328 sizeof(entry->port_name)); 1329 entry->physical_port = port->physical_port; 1330 entry->virtual_port = port->virtual_port; 1331 entry->wwnn = port->wwnn; 1332 entry->wwpn = port->wwpn; 1333 1334 i++; 1335 entries_filled++; 1336 } 1337 1338 mtx_unlock(&softc->ctl_lock); 1339 1340 if (entries_dropped > 0) 1341 retval = 1; 1342 1343 *num_entries_dropped = entries_dropped; 1344 *num_entries_filled = entries_filled; 1345 1346 return (retval); 1347 } 1348 1349 static void 1350 ctl_ioctl_online(void *arg) 1351 { 1352 struct ctl_ioctl_info *ioctl_info; 1353 1354 ioctl_info = (struct ctl_ioctl_info *)arg; 1355 1356 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1357 } 1358 1359 static void 1360 ctl_ioctl_offline(void *arg) 1361 { 1362 struct ctl_ioctl_info *ioctl_info; 1363 1364 ioctl_info = (struct ctl_ioctl_info *)arg; 1365 1366 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1367 } 1368 1369 /* 1370 * Remove an initiator by port number and initiator ID. 1371 * Returns 0 for success, -1 for failure. 1372 */ 1373 int 1374 ctl_remove_initiator(struct ctl_port *port, int iid) 1375 { 1376 struct ctl_softc *softc = control_softc; 1377 1378 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1379 1380 if (iid > CTL_MAX_INIT_PER_PORT) { 1381 printf("%s: initiator ID %u > maximun %u!\n", 1382 __func__, iid, CTL_MAX_INIT_PER_PORT); 1383 return (-1); 1384 } 1385 1386 mtx_lock(&softc->ctl_lock); 1387 port->wwpn_iid[iid].in_use--; 1388 port->wwpn_iid[iid].last_use = time_uptime; 1389 mtx_unlock(&softc->ctl_lock); 1390 1391 return (0); 1392 } 1393 1394 /* 1395 * Add an initiator to the initiator map. 1396 * Returns iid for success, < 0 for failure. 1397 */ 1398 int 1399 ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1400 { 1401 struct ctl_softc *softc = control_softc; 1402 time_t best_time; 1403 int i, best; 1404 1405 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1406 1407 if (iid >= CTL_MAX_INIT_PER_PORT) { 1408 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1409 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1410 free(name, M_CTL); 1411 return (-1); 1412 } 1413 1414 mtx_lock(&softc->ctl_lock); 1415 1416 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1417 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1418 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1419 iid = i; 1420 break; 1421 } 1422 if (name != NULL && port->wwpn_iid[i].name != NULL && 1423 strcmp(name, port->wwpn_iid[i].name) == 0) { 1424 iid = i; 1425 break; 1426 } 1427 } 1428 } 1429 1430 if (iid < 0) { 1431 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1432 if (port->wwpn_iid[i].in_use == 0 && 1433 port->wwpn_iid[i].wwpn == 0 && 1434 port->wwpn_iid[i].name == NULL) { 1435 iid = i; 1436 break; 1437 } 1438 } 1439 } 1440 1441 if (iid < 0) { 1442 best = -1; 1443 best_time = INT32_MAX; 1444 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1445 if (port->wwpn_iid[i].in_use == 0) { 1446 if (port->wwpn_iid[i].last_use < best_time) { 1447 best = i; 1448 best_time = port->wwpn_iid[i].last_use; 1449 } 1450 } 1451 } 1452 iid = best; 1453 } 1454 1455 if (iid < 0) { 1456 mtx_unlock(&softc->ctl_lock); 1457 free(name, M_CTL); 1458 return (-2); 1459 } 1460 1461 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1462 /* 1463 * This is not an error yet. 1464 */ 1465 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1466 #if 0 1467 printf("%s: port %d iid %u WWPN %#jx arrived" 1468 " again\n", __func__, port->targ_port, 1469 iid, (uintmax_t)wwpn); 1470 #endif 1471 goto take; 1472 } 1473 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1474 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1475 #if 0 1476 printf("%s: port %d iid %u name '%s' arrived" 1477 " again\n", __func__, port->targ_port, 1478 iid, name); 1479 #endif 1480 goto take; 1481 } 1482 1483 /* 1484 * This is an error, but what do we do about it? The 1485 * driver is telling us we have a new WWPN for this 1486 * initiator ID, so we pretty much need to use it. 1487 */ 1488 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1489 " but WWPN %#jx '%s' is still at that address\n", 1490 __func__, port->targ_port, iid, wwpn, name, 1491 (uintmax_t)port->wwpn_iid[iid].wwpn, 1492 port->wwpn_iid[iid].name); 1493 1494 /* 1495 * XXX KDM clear have_ca and ua_pending on each LUN for 1496 * this initiator. 1497 */ 1498 } 1499 take: 1500 free(port->wwpn_iid[iid].name, M_CTL); 1501 port->wwpn_iid[iid].name = name; 1502 port->wwpn_iid[iid].wwpn = wwpn; 1503 port->wwpn_iid[iid].in_use++; 1504 mtx_unlock(&softc->ctl_lock); 1505 1506 return (iid); 1507 } 1508 1509 static int 1510 ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1511 { 1512 int len; 1513 1514 switch (port->port_type) { 1515 case CTL_PORT_FC: 1516 { 1517 struct scsi_transportid_fcp *id = 1518 (struct scsi_transportid_fcp *)buf; 1519 if (port->wwpn_iid[iid].wwpn == 0) 1520 return (0); 1521 memset(id, 0, sizeof(*id)); 1522 id->format_protocol = SCSI_PROTO_FC; 1523 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1524 return (sizeof(*id)); 1525 } 1526 case CTL_PORT_ISCSI: 1527 { 1528 struct scsi_transportid_iscsi_port *id = 1529 (struct scsi_transportid_iscsi_port *)buf; 1530 if (port->wwpn_iid[iid].name == NULL) 1531 return (0); 1532 memset(id, 0, 256); 1533 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1534 SCSI_PROTO_ISCSI; 1535 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1536 len = roundup2(min(len, 252), 4); 1537 scsi_ulto2b(len, id->additional_length); 1538 return (sizeof(*id) + len); 1539 } 1540 case CTL_PORT_SAS: 1541 { 1542 struct scsi_transportid_sas *id = 1543 (struct scsi_transportid_sas *)buf; 1544 if (port->wwpn_iid[iid].wwpn == 0) 1545 return (0); 1546 memset(id, 0, sizeof(*id)); 1547 id->format_protocol = SCSI_PROTO_SAS; 1548 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1549 return (sizeof(*id)); 1550 } 1551 default: 1552 { 1553 struct scsi_transportid_spi *id = 1554 (struct scsi_transportid_spi *)buf; 1555 memset(id, 0, sizeof(*id)); 1556 id->format_protocol = SCSI_PROTO_SPI; 1557 scsi_ulto2b(iid, id->scsi_addr); 1558 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1559 return (sizeof(*id)); 1560 } 1561 } 1562 } 1563 1564 static int 1565 ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1566 { 1567 return (0); 1568 } 1569 1570 static int 1571 ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1572 { 1573 return (0); 1574 } 1575 1576 /* 1577 * Data movement routine for the CTL ioctl frontend port. 1578 */ 1579 static int 1580 ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1581 { 1582 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1583 struct ctl_sg_entry ext_entry, kern_entry; 1584 int ext_sglen, ext_sg_entries, kern_sg_entries; 1585 int ext_sg_start, ext_offset; 1586 int len_to_copy, len_copied; 1587 int kern_watermark, ext_watermark; 1588 int ext_sglist_malloced; 1589 int i, j; 1590 1591 ext_sglist_malloced = 0; 1592 ext_sg_start = 0; 1593 ext_offset = 0; 1594 1595 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1596 1597 /* 1598 * If this flag is set, fake the data transfer. 1599 */ 1600 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1601 ctsio->ext_data_filled = ctsio->ext_data_len; 1602 goto bailout; 1603 } 1604 1605 /* 1606 * To simplify things here, if we have a single buffer, stick it in 1607 * a S/G entry and just make it a single entry S/G list. 1608 */ 1609 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1610 int len_seen; 1611 1612 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1613 1614 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1615 M_WAITOK); 1616 ext_sglist_malloced = 1; 1617 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1618 ext_sglen) != 0) { 1619 ctl_set_internal_failure(ctsio, 1620 /*sks_valid*/ 0, 1621 /*retry_count*/ 0); 1622 goto bailout; 1623 } 1624 ext_sg_entries = ctsio->ext_sg_entries; 1625 len_seen = 0; 1626 for (i = 0; i < ext_sg_entries; i++) { 1627 if ((len_seen + ext_sglist[i].len) >= 1628 ctsio->ext_data_filled) { 1629 ext_sg_start = i; 1630 ext_offset = ctsio->ext_data_filled - len_seen; 1631 break; 1632 } 1633 len_seen += ext_sglist[i].len; 1634 } 1635 } else { 1636 ext_sglist = &ext_entry; 1637 ext_sglist->addr = ctsio->ext_data_ptr; 1638 ext_sglist->len = ctsio->ext_data_len; 1639 ext_sg_entries = 1; 1640 ext_sg_start = 0; 1641 ext_offset = ctsio->ext_data_filled; 1642 } 1643 1644 if (ctsio->kern_sg_entries > 0) { 1645 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1646 kern_sg_entries = ctsio->kern_sg_entries; 1647 } else { 1648 kern_sglist = &kern_entry; 1649 kern_sglist->addr = ctsio->kern_data_ptr; 1650 kern_sglist->len = ctsio->kern_data_len; 1651 kern_sg_entries = 1; 1652 } 1653 1654 1655 kern_watermark = 0; 1656 ext_watermark = ext_offset; 1657 len_copied = 0; 1658 for (i = ext_sg_start, j = 0; 1659 i < ext_sg_entries && j < kern_sg_entries;) { 1660 uint8_t *ext_ptr, *kern_ptr; 1661 1662 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1663 kern_sglist[j].len - kern_watermark); 1664 1665 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1666 ext_ptr = ext_ptr + ext_watermark; 1667 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1668 /* 1669 * XXX KDM fix this! 1670 */ 1671 panic("need to implement bus address support"); 1672 #if 0 1673 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1674 #endif 1675 } else 1676 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1677 kern_ptr = kern_ptr + kern_watermark; 1678 1679 kern_watermark += len_to_copy; 1680 ext_watermark += len_to_copy; 1681 1682 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1683 CTL_FLAG_DATA_IN) { 1684 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1685 "bytes to user\n", len_to_copy)); 1686 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1687 "to %p\n", kern_ptr, ext_ptr)); 1688 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1689 ctl_set_internal_failure(ctsio, 1690 /*sks_valid*/ 0, 1691 /*retry_count*/ 0); 1692 goto bailout; 1693 } 1694 } else { 1695 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1696 "bytes from user\n", len_to_copy)); 1697 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1698 "to %p\n", ext_ptr, kern_ptr)); 1699 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1700 ctl_set_internal_failure(ctsio, 1701 /*sks_valid*/ 0, 1702 /*retry_count*/0); 1703 goto bailout; 1704 } 1705 } 1706 1707 len_copied += len_to_copy; 1708 1709 if (ext_sglist[i].len == ext_watermark) { 1710 i++; 1711 ext_watermark = 0; 1712 } 1713 1714 if (kern_sglist[j].len == kern_watermark) { 1715 j++; 1716 kern_watermark = 0; 1717 } 1718 } 1719 1720 ctsio->ext_data_filled += len_copied; 1721 1722 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1723 "kern_sg_entries: %d\n", ext_sg_entries, 1724 kern_sg_entries)); 1725 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1726 "kern_data_len = %d\n", ctsio->ext_data_len, 1727 ctsio->kern_data_len)); 1728 1729 1730 /* XXX KDM set residual?? */ 1731 bailout: 1732 1733 if (ext_sglist_malloced != 0) 1734 free(ext_sglist, M_CTL); 1735 1736 return (CTL_RETVAL_COMPLETE); 1737 } 1738 1739 /* 1740 * Serialize a command that went down the "wrong" side, and so was sent to 1741 * this controller for execution. The logic is a little different than the 1742 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1743 * sent back to the other side, but in the success case, we execute the 1744 * command on this side (XFER mode) or tell the other side to execute it 1745 * (SER_ONLY mode). 1746 */ 1747 static int 1748 ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1749 { 1750 struct ctl_softc *ctl_softc; 1751 union ctl_ha_msg msg_info; 1752 struct ctl_lun *lun; 1753 int retval = 0; 1754 uint32_t targ_lun; 1755 1756 ctl_softc = control_softc; 1757 1758 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1759 lun = ctl_softc->ctl_luns[targ_lun]; 1760 if (lun==NULL) 1761 { 1762 /* 1763 * Why isn't LUN defined? The other side wouldn't 1764 * send a cmd if the LUN is undefined. 1765 */ 1766 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1767 1768 /* "Logical unit not supported" */ 1769 ctl_set_sense_data(&msg_info.scsi.sense_data, 1770 lun, 1771 /*sense_format*/SSD_TYPE_NONE, 1772 /*current_error*/ 1, 1773 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1774 /*asc*/ 0x25, 1775 /*ascq*/ 0x00, 1776 SSD_ELEM_NONE); 1777 1778 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1779 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1780 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1781 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1782 msg_info.hdr.serializing_sc = NULL; 1783 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1784 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1785 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1786 } 1787 return(1); 1788 1789 } 1790 1791 mtx_lock(&lun->lun_lock); 1792 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1793 1794 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1795 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1796 ooa_links))) { 1797 case CTL_ACTION_BLOCK: 1798 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1799 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1800 blocked_links); 1801 break; 1802 case CTL_ACTION_PASS: 1803 case CTL_ACTION_SKIP: 1804 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1805 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1806 ctl_enqueue_rtr((union ctl_io *)ctsio); 1807 } else { 1808 1809 /* send msg back to other side */ 1810 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1811 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1812 msg_info.hdr.msg_type = CTL_MSG_R2R; 1813 #if 0 1814 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1815 #endif 1816 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1817 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1818 } 1819 } 1820 break; 1821 case CTL_ACTION_OVERLAP: 1822 /* OVERLAPPED COMMANDS ATTEMPTED */ 1823 ctl_set_sense_data(&msg_info.scsi.sense_data, 1824 lun, 1825 /*sense_format*/SSD_TYPE_NONE, 1826 /*current_error*/ 1, 1827 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1828 /*asc*/ 0x4E, 1829 /*ascq*/ 0x00, 1830 SSD_ELEM_NONE); 1831 1832 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1833 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1834 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1835 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1836 msg_info.hdr.serializing_sc = NULL; 1837 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1838 #if 0 1839 printf("BAD JUJU:Major Bummer Overlap\n"); 1840 #endif 1841 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1842 retval = 1; 1843 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1844 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1845 } 1846 break; 1847 case CTL_ACTION_OVERLAP_TAG: 1848 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1849 ctl_set_sense_data(&msg_info.scsi.sense_data, 1850 lun, 1851 /*sense_format*/SSD_TYPE_NONE, 1852 /*current_error*/ 1, 1853 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1854 /*asc*/ 0x4D, 1855 /*ascq*/ ctsio->tag_num & 0xff, 1856 SSD_ELEM_NONE); 1857 1858 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1859 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1860 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1861 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1862 msg_info.hdr.serializing_sc = NULL; 1863 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1864 #if 0 1865 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1866 #endif 1867 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1868 retval = 1; 1869 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1870 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1871 } 1872 break; 1873 case CTL_ACTION_ERROR: 1874 default: 1875 /* "Internal target failure" */ 1876 ctl_set_sense_data(&msg_info.scsi.sense_data, 1877 lun, 1878 /*sense_format*/SSD_TYPE_NONE, 1879 /*current_error*/ 1, 1880 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1881 /*asc*/ 0x44, 1882 /*ascq*/ 0x00, 1883 SSD_ELEM_NONE); 1884 1885 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1886 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1887 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1888 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1889 msg_info.hdr.serializing_sc = NULL; 1890 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1891 #if 0 1892 printf("BAD JUJU:Major Bummer HW Error\n"); 1893 #endif 1894 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1895 retval = 1; 1896 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1897 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1898 } 1899 break; 1900 } 1901 mtx_unlock(&lun->lun_lock); 1902 return (retval); 1903 } 1904 1905 static int 1906 ctl_ioctl_submit_wait(union ctl_io *io) 1907 { 1908 struct ctl_fe_ioctl_params params; 1909 ctl_fe_ioctl_state last_state; 1910 int done, retval; 1911 1912 retval = 0; 1913 1914 bzero(¶ms, sizeof(params)); 1915 1916 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1917 cv_init(¶ms.sem, "ctlioccv"); 1918 params.state = CTL_IOCTL_INPROG; 1919 last_state = params.state; 1920 1921 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1922 1923 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1924 1925 /* This shouldn't happen */ 1926 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1927 return (retval); 1928 1929 done = 0; 1930 1931 do { 1932 mtx_lock(¶ms.ioctl_mtx); 1933 /* 1934 * Check the state here, and don't sleep if the state has 1935 * already changed (i.e. wakeup has already occured, but we 1936 * weren't waiting yet). 1937 */ 1938 if (params.state == last_state) { 1939 /* XXX KDM cv_wait_sig instead? */ 1940 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1941 } 1942 last_state = params.state; 1943 1944 switch (params.state) { 1945 case CTL_IOCTL_INPROG: 1946 /* Why did we wake up? */ 1947 /* XXX KDM error here? */ 1948 mtx_unlock(¶ms.ioctl_mtx); 1949 break; 1950 case CTL_IOCTL_DATAMOVE: 1951 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1952 1953 /* 1954 * change last_state back to INPROG to avoid 1955 * deadlock on subsequent data moves. 1956 */ 1957 params.state = last_state = CTL_IOCTL_INPROG; 1958 1959 mtx_unlock(¶ms.ioctl_mtx); 1960 ctl_ioctl_do_datamove(&io->scsiio); 1961 /* 1962 * Note that in some cases, most notably writes, 1963 * this will queue the I/O and call us back later. 1964 * In other cases, generally reads, this routine 1965 * will immediately call back and wake us up, 1966 * probably using our own context. 1967 */ 1968 io->scsiio.be_move_done(io); 1969 break; 1970 case CTL_IOCTL_DONE: 1971 mtx_unlock(¶ms.ioctl_mtx); 1972 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1973 done = 1; 1974 break; 1975 default: 1976 mtx_unlock(¶ms.ioctl_mtx); 1977 /* XXX KDM error here? */ 1978 break; 1979 } 1980 } while (done == 0); 1981 1982 mtx_destroy(¶ms.ioctl_mtx); 1983 cv_destroy(¶ms.sem); 1984 1985 return (CTL_RETVAL_COMPLETE); 1986 } 1987 1988 static void 1989 ctl_ioctl_datamove(union ctl_io *io) 1990 { 1991 struct ctl_fe_ioctl_params *params; 1992 1993 params = (struct ctl_fe_ioctl_params *) 1994 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1995 1996 mtx_lock(¶ms->ioctl_mtx); 1997 params->state = CTL_IOCTL_DATAMOVE; 1998 cv_broadcast(¶ms->sem); 1999 mtx_unlock(¶ms->ioctl_mtx); 2000 } 2001 2002 static void 2003 ctl_ioctl_done(union ctl_io *io) 2004 { 2005 struct ctl_fe_ioctl_params *params; 2006 2007 params = (struct ctl_fe_ioctl_params *) 2008 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2009 2010 mtx_lock(¶ms->ioctl_mtx); 2011 params->state = CTL_IOCTL_DONE; 2012 cv_broadcast(¶ms->sem); 2013 mtx_unlock(¶ms->ioctl_mtx); 2014 } 2015 2016 static void 2017 ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2018 { 2019 struct ctl_fe_ioctl_startstop_info *sd_info; 2020 2021 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2022 2023 sd_info->hs_info.status = metatask->status; 2024 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2025 sd_info->hs_info.luns_complete = 2026 metatask->taskinfo.startstop.luns_complete; 2027 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2028 2029 cv_broadcast(&sd_info->sem); 2030 } 2031 2032 static void 2033 ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2034 { 2035 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2036 2037 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2038 2039 mtx_lock(fe_bbr_info->lock); 2040 fe_bbr_info->bbr_info->status = metatask->status; 2041 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2042 fe_bbr_info->wakeup_done = 1; 2043 mtx_unlock(fe_bbr_info->lock); 2044 2045 cv_broadcast(&fe_bbr_info->sem); 2046 } 2047 2048 /* 2049 * Returns 0 for success, errno for failure. 2050 */ 2051 static int 2052 ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2053 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2054 { 2055 union ctl_io *io; 2056 int retval; 2057 2058 retval = 0; 2059 2060 mtx_lock(&lun->lun_lock); 2061 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2062 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2063 ooa_links)) { 2064 struct ctl_ooa_entry *entry; 2065 2066 /* 2067 * If we've got more than we can fit, just count the 2068 * remaining entries. 2069 */ 2070 if (*cur_fill_num >= ooa_hdr->alloc_num) 2071 continue; 2072 2073 entry = &kern_entries[*cur_fill_num]; 2074 2075 entry->tag_num = io->scsiio.tag_num; 2076 entry->lun_num = lun->lun; 2077 #ifdef CTL_TIME_IO 2078 entry->start_bt = io->io_hdr.start_bt; 2079 #endif 2080 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2081 entry->cdb_len = io->scsiio.cdb_len; 2082 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2083 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2084 2085 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2086 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2087 2088 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2089 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2090 2091 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2092 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2093 2094 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2095 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2096 } 2097 mtx_unlock(&lun->lun_lock); 2098 2099 return (retval); 2100 } 2101 2102 static void * 2103 ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2104 size_t error_str_len) 2105 { 2106 void *kptr; 2107 2108 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2109 2110 if (copyin(user_addr, kptr, len) != 0) { 2111 snprintf(error_str, error_str_len, "Error copying %d bytes " 2112 "from user address %p to kernel address %p", len, 2113 user_addr, kptr); 2114 free(kptr, M_CTL); 2115 return (NULL); 2116 } 2117 2118 return (kptr); 2119 } 2120 2121 static void 2122 ctl_free_args(int num_args, struct ctl_be_arg *args) 2123 { 2124 int i; 2125 2126 if (args == NULL) 2127 return; 2128 2129 for (i = 0; i < num_args; i++) { 2130 free(args[i].kname, M_CTL); 2131 free(args[i].kvalue, M_CTL); 2132 } 2133 2134 free(args, M_CTL); 2135 } 2136 2137 static struct ctl_be_arg * 2138 ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2139 char *error_str, size_t error_str_len) 2140 { 2141 struct ctl_be_arg *args; 2142 int i; 2143 2144 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2145 error_str, error_str_len); 2146 2147 if (args == NULL) 2148 goto bailout; 2149 2150 for (i = 0; i < num_args; i++) { 2151 args[i].kname = NULL; 2152 args[i].kvalue = NULL; 2153 } 2154 2155 for (i = 0; i < num_args; i++) { 2156 uint8_t *tmpptr; 2157 2158 args[i].kname = ctl_copyin_alloc(args[i].name, 2159 args[i].namelen, error_str, error_str_len); 2160 if (args[i].kname == NULL) 2161 goto bailout; 2162 2163 if (args[i].kname[args[i].namelen - 1] != '\0') { 2164 snprintf(error_str, error_str_len, "Argument %d " 2165 "name is not NUL-terminated", i); 2166 goto bailout; 2167 } 2168 2169 if (args[i].flags & CTL_BEARG_RD) { 2170 tmpptr = ctl_copyin_alloc(args[i].value, 2171 args[i].vallen, error_str, error_str_len); 2172 if (tmpptr == NULL) 2173 goto bailout; 2174 if ((args[i].flags & CTL_BEARG_ASCII) 2175 && (tmpptr[args[i].vallen - 1] != '\0')) { 2176 snprintf(error_str, error_str_len, "Argument " 2177 "%d value is not NUL-terminated", i); 2178 goto bailout; 2179 } 2180 args[i].kvalue = tmpptr; 2181 } else { 2182 args[i].kvalue = malloc(args[i].vallen, 2183 M_CTL, M_WAITOK | M_ZERO); 2184 } 2185 } 2186 2187 return (args); 2188 bailout: 2189 2190 ctl_free_args(num_args, args); 2191 2192 return (NULL); 2193 } 2194 2195 static void 2196 ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2197 { 2198 int i; 2199 2200 for (i = 0; i < num_args; i++) { 2201 if (args[i].flags & CTL_BEARG_WR) 2202 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2203 } 2204 } 2205 2206 /* 2207 * Escape characters that are illegal or not recommended in XML. 2208 */ 2209 int 2210 ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2211 { 2212 int retval; 2213 2214 retval = 0; 2215 2216 for (; *str; str++) { 2217 switch (*str) { 2218 case '&': 2219 retval = sbuf_printf(sb, "&"); 2220 break; 2221 case '>': 2222 retval = sbuf_printf(sb, ">"); 2223 break; 2224 case '<': 2225 retval = sbuf_printf(sb, "<"); 2226 break; 2227 default: 2228 retval = sbuf_putc(sb, *str); 2229 break; 2230 } 2231 2232 if (retval != 0) 2233 break; 2234 2235 } 2236 2237 return (retval); 2238 } 2239 2240 static int 2241 ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2242 struct thread *td) 2243 { 2244 struct ctl_softc *softc; 2245 int retval; 2246 2247 softc = control_softc; 2248 2249 retval = 0; 2250 2251 switch (cmd) { 2252 case CTL_IO: { 2253 union ctl_io *io; 2254 void *pool_tmp; 2255 2256 /* 2257 * If we haven't been "enabled", don't allow any SCSI I/O 2258 * to this FETD. 2259 */ 2260 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2261 retval = EPERM; 2262 break; 2263 } 2264 2265 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2266 if (io == NULL) { 2267 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2268 retval = ENOSPC; 2269 break; 2270 } 2271 2272 /* 2273 * Need to save the pool reference so it doesn't get 2274 * spammed by the user's ctl_io. 2275 */ 2276 pool_tmp = io->io_hdr.pool; 2277 2278 memcpy(io, (void *)addr, sizeof(*io)); 2279 2280 io->io_hdr.pool = pool_tmp; 2281 /* 2282 * No status yet, so make sure the status is set properly. 2283 */ 2284 io->io_hdr.status = CTL_STATUS_NONE; 2285 2286 /* 2287 * The user sets the initiator ID, target and LUN IDs. 2288 */ 2289 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2290 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2291 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2292 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2293 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2294 2295 retval = ctl_ioctl_submit_wait(io); 2296 2297 if (retval != 0) { 2298 ctl_free_io(io); 2299 break; 2300 } 2301 2302 memcpy((void *)addr, io, sizeof(*io)); 2303 2304 /* return this to our pool */ 2305 ctl_free_io(io); 2306 2307 break; 2308 } 2309 case CTL_ENABLE_PORT: 2310 case CTL_DISABLE_PORT: 2311 case CTL_SET_PORT_WWNS: { 2312 struct ctl_port *port; 2313 struct ctl_port_entry *entry; 2314 2315 entry = (struct ctl_port_entry *)addr; 2316 2317 mtx_lock(&softc->ctl_lock); 2318 STAILQ_FOREACH(port, &softc->port_list, links) { 2319 int action, done; 2320 2321 action = 0; 2322 done = 0; 2323 2324 if ((entry->port_type == CTL_PORT_NONE) 2325 && (entry->targ_port == port->targ_port)) { 2326 /* 2327 * If the user only wants to enable or 2328 * disable or set WWNs on a specific port, 2329 * do the operation and we're done. 2330 */ 2331 action = 1; 2332 done = 1; 2333 } else if (entry->port_type & port->port_type) { 2334 /* 2335 * Compare the user's type mask with the 2336 * particular frontend type to see if we 2337 * have a match. 2338 */ 2339 action = 1; 2340 done = 0; 2341 2342 /* 2343 * Make sure the user isn't trying to set 2344 * WWNs on multiple ports at the same time. 2345 */ 2346 if (cmd == CTL_SET_PORT_WWNS) { 2347 printf("%s: Can't set WWNs on " 2348 "multiple ports\n", __func__); 2349 retval = EINVAL; 2350 break; 2351 } 2352 } 2353 if (action != 0) { 2354 /* 2355 * XXX KDM we have to drop the lock here, 2356 * because the online/offline operations 2357 * can potentially block. We need to 2358 * reference count the frontends so they 2359 * can't go away, 2360 */ 2361 mtx_unlock(&softc->ctl_lock); 2362 2363 if (cmd == CTL_ENABLE_PORT) { 2364 struct ctl_lun *lun; 2365 2366 STAILQ_FOREACH(lun, &softc->lun_list, 2367 links) { 2368 port->lun_enable(port->targ_lun_arg, 2369 lun->target, 2370 lun->lun); 2371 } 2372 2373 ctl_port_online(port); 2374 } else if (cmd == CTL_DISABLE_PORT) { 2375 struct ctl_lun *lun; 2376 2377 ctl_port_offline(port); 2378 2379 STAILQ_FOREACH(lun, &softc->lun_list, 2380 links) { 2381 port->lun_disable( 2382 port->targ_lun_arg, 2383 lun->target, 2384 lun->lun); 2385 } 2386 } 2387 2388 mtx_lock(&softc->ctl_lock); 2389 2390 if (cmd == CTL_SET_PORT_WWNS) 2391 ctl_port_set_wwns(port, 2392 (entry->flags & CTL_PORT_WWNN_VALID) ? 2393 1 : 0, entry->wwnn, 2394 (entry->flags & CTL_PORT_WWPN_VALID) ? 2395 1 : 0, entry->wwpn); 2396 } 2397 if (done != 0) 2398 break; 2399 } 2400 mtx_unlock(&softc->ctl_lock); 2401 break; 2402 } 2403 case CTL_GET_PORT_LIST: { 2404 struct ctl_port *port; 2405 struct ctl_port_list *list; 2406 int i; 2407 2408 list = (struct ctl_port_list *)addr; 2409 2410 if (list->alloc_len != (list->alloc_num * 2411 sizeof(struct ctl_port_entry))) { 2412 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2413 "alloc_num %u * sizeof(struct ctl_port_entry) " 2414 "%zu\n", __func__, list->alloc_len, 2415 list->alloc_num, sizeof(struct ctl_port_entry)); 2416 retval = EINVAL; 2417 break; 2418 } 2419 list->fill_len = 0; 2420 list->fill_num = 0; 2421 list->dropped_num = 0; 2422 i = 0; 2423 mtx_lock(&softc->ctl_lock); 2424 STAILQ_FOREACH(port, &softc->port_list, links) { 2425 struct ctl_port_entry entry, *list_entry; 2426 2427 if (list->fill_num >= list->alloc_num) { 2428 list->dropped_num++; 2429 continue; 2430 } 2431 2432 entry.port_type = port->port_type; 2433 strlcpy(entry.port_name, port->port_name, 2434 sizeof(entry.port_name)); 2435 entry.targ_port = port->targ_port; 2436 entry.physical_port = port->physical_port; 2437 entry.virtual_port = port->virtual_port; 2438 entry.wwnn = port->wwnn; 2439 entry.wwpn = port->wwpn; 2440 if (port->status & CTL_PORT_STATUS_ONLINE) 2441 entry.online = 1; 2442 else 2443 entry.online = 0; 2444 2445 list_entry = &list->entries[i]; 2446 2447 retval = copyout(&entry, list_entry, sizeof(entry)); 2448 if (retval != 0) { 2449 printf("%s: CTL_GET_PORT_LIST: copyout " 2450 "returned %d\n", __func__, retval); 2451 break; 2452 } 2453 i++; 2454 list->fill_num++; 2455 list->fill_len += sizeof(entry); 2456 } 2457 mtx_unlock(&softc->ctl_lock); 2458 2459 /* 2460 * If this is non-zero, we had a copyout fault, so there's 2461 * probably no point in attempting to set the status inside 2462 * the structure. 2463 */ 2464 if (retval != 0) 2465 break; 2466 2467 if (list->dropped_num > 0) 2468 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2469 else 2470 list->status = CTL_PORT_LIST_OK; 2471 break; 2472 } 2473 case CTL_DUMP_OOA: { 2474 struct ctl_lun *lun; 2475 union ctl_io *io; 2476 char printbuf[128]; 2477 struct sbuf sb; 2478 2479 mtx_lock(&softc->ctl_lock); 2480 printf("Dumping OOA queues:\n"); 2481 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2482 mtx_lock(&lun->lun_lock); 2483 for (io = (union ctl_io *)TAILQ_FIRST( 2484 &lun->ooa_queue); io != NULL; 2485 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2486 ooa_links)) { 2487 sbuf_new(&sb, printbuf, sizeof(printbuf), 2488 SBUF_FIXEDLEN); 2489 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2490 (intmax_t)lun->lun, 2491 io->scsiio.tag_num, 2492 (io->io_hdr.flags & 2493 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2494 (io->io_hdr.flags & 2495 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2496 (io->io_hdr.flags & 2497 CTL_FLAG_ABORT) ? " ABORT" : "", 2498 (io->io_hdr.flags & 2499 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2500 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2501 sbuf_finish(&sb); 2502 printf("%s\n", sbuf_data(&sb)); 2503 } 2504 mtx_unlock(&lun->lun_lock); 2505 } 2506 printf("OOA queues dump done\n"); 2507 mtx_unlock(&softc->ctl_lock); 2508 break; 2509 } 2510 case CTL_GET_OOA: { 2511 struct ctl_lun *lun; 2512 struct ctl_ooa *ooa_hdr; 2513 struct ctl_ooa_entry *entries; 2514 uint32_t cur_fill_num; 2515 2516 ooa_hdr = (struct ctl_ooa *)addr; 2517 2518 if ((ooa_hdr->alloc_len == 0) 2519 || (ooa_hdr->alloc_num == 0)) { 2520 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2521 "must be non-zero\n", __func__, 2522 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2523 retval = EINVAL; 2524 break; 2525 } 2526 2527 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2528 sizeof(struct ctl_ooa_entry))) { 2529 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2530 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2531 __func__, ooa_hdr->alloc_len, 2532 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2533 retval = EINVAL; 2534 break; 2535 } 2536 2537 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2538 if (entries == NULL) { 2539 printf("%s: could not allocate %d bytes for OOA " 2540 "dump\n", __func__, ooa_hdr->alloc_len); 2541 retval = ENOMEM; 2542 break; 2543 } 2544 2545 mtx_lock(&softc->ctl_lock); 2546 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2547 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2548 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2549 mtx_unlock(&softc->ctl_lock); 2550 free(entries, M_CTL); 2551 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2552 __func__, (uintmax_t)ooa_hdr->lun_num); 2553 retval = EINVAL; 2554 break; 2555 } 2556 2557 cur_fill_num = 0; 2558 2559 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2560 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2561 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2562 ooa_hdr, entries); 2563 if (retval != 0) 2564 break; 2565 } 2566 if (retval != 0) { 2567 mtx_unlock(&softc->ctl_lock); 2568 free(entries, M_CTL); 2569 break; 2570 } 2571 } else { 2572 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2573 2574 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2575 entries); 2576 } 2577 mtx_unlock(&softc->ctl_lock); 2578 2579 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2580 ooa_hdr->fill_len = ooa_hdr->fill_num * 2581 sizeof(struct ctl_ooa_entry); 2582 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2583 if (retval != 0) { 2584 printf("%s: error copying out %d bytes for OOA dump\n", 2585 __func__, ooa_hdr->fill_len); 2586 } 2587 2588 getbintime(&ooa_hdr->cur_bt); 2589 2590 if (cur_fill_num > ooa_hdr->alloc_num) { 2591 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2592 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2593 } else { 2594 ooa_hdr->dropped_num = 0; 2595 ooa_hdr->status = CTL_OOA_OK; 2596 } 2597 2598 free(entries, M_CTL); 2599 break; 2600 } 2601 case CTL_CHECK_OOA: { 2602 union ctl_io *io; 2603 struct ctl_lun *lun; 2604 struct ctl_ooa_info *ooa_info; 2605 2606 2607 ooa_info = (struct ctl_ooa_info *)addr; 2608 2609 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2610 ooa_info->status = CTL_OOA_INVALID_LUN; 2611 break; 2612 } 2613 mtx_lock(&softc->ctl_lock); 2614 lun = softc->ctl_luns[ooa_info->lun_id]; 2615 if (lun == NULL) { 2616 mtx_unlock(&softc->ctl_lock); 2617 ooa_info->status = CTL_OOA_INVALID_LUN; 2618 break; 2619 } 2620 mtx_lock(&lun->lun_lock); 2621 mtx_unlock(&softc->ctl_lock); 2622 ooa_info->num_entries = 0; 2623 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2624 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2625 &io->io_hdr, ooa_links)) { 2626 ooa_info->num_entries++; 2627 } 2628 mtx_unlock(&lun->lun_lock); 2629 2630 ooa_info->status = CTL_OOA_SUCCESS; 2631 2632 break; 2633 } 2634 case CTL_HARD_START: 2635 case CTL_HARD_STOP: { 2636 struct ctl_fe_ioctl_startstop_info ss_info; 2637 struct cfi_metatask *metatask; 2638 struct mtx hs_mtx; 2639 2640 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2641 2642 cv_init(&ss_info.sem, "hard start/stop cv" ); 2643 2644 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2645 if (metatask == NULL) { 2646 retval = ENOMEM; 2647 mtx_destroy(&hs_mtx); 2648 break; 2649 } 2650 2651 if (cmd == CTL_HARD_START) 2652 metatask->tasktype = CFI_TASK_STARTUP; 2653 else 2654 metatask->tasktype = CFI_TASK_SHUTDOWN; 2655 2656 metatask->callback = ctl_ioctl_hard_startstop_callback; 2657 metatask->callback_arg = &ss_info; 2658 2659 cfi_action(metatask); 2660 2661 /* Wait for the callback */ 2662 mtx_lock(&hs_mtx); 2663 cv_wait_sig(&ss_info.sem, &hs_mtx); 2664 mtx_unlock(&hs_mtx); 2665 2666 /* 2667 * All information has been copied from the metatask by the 2668 * time cv_broadcast() is called, so we free the metatask here. 2669 */ 2670 cfi_free_metatask(metatask); 2671 2672 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2673 2674 mtx_destroy(&hs_mtx); 2675 break; 2676 } 2677 case CTL_BBRREAD: { 2678 struct ctl_bbrread_info *bbr_info; 2679 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2680 struct mtx bbr_mtx; 2681 struct cfi_metatask *metatask; 2682 2683 bbr_info = (struct ctl_bbrread_info *)addr; 2684 2685 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2686 2687 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2688 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2689 2690 fe_bbr_info.bbr_info = bbr_info; 2691 fe_bbr_info.lock = &bbr_mtx; 2692 2693 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2694 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2695 2696 if (metatask == NULL) { 2697 mtx_destroy(&bbr_mtx); 2698 cv_destroy(&fe_bbr_info.sem); 2699 retval = ENOMEM; 2700 break; 2701 } 2702 metatask->tasktype = CFI_TASK_BBRREAD; 2703 metatask->callback = ctl_ioctl_bbrread_callback; 2704 metatask->callback_arg = &fe_bbr_info; 2705 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2706 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2707 metatask->taskinfo.bbrread.len = bbr_info->len; 2708 2709 cfi_action(metatask); 2710 2711 mtx_lock(&bbr_mtx); 2712 while (fe_bbr_info.wakeup_done == 0) 2713 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2714 mtx_unlock(&bbr_mtx); 2715 2716 bbr_info->status = metatask->status; 2717 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2718 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2719 memcpy(&bbr_info->sense_data, 2720 &metatask->taskinfo.bbrread.sense_data, 2721 ctl_min(sizeof(bbr_info->sense_data), 2722 sizeof(metatask->taskinfo.bbrread.sense_data))); 2723 2724 cfi_free_metatask(metatask); 2725 2726 mtx_destroy(&bbr_mtx); 2727 cv_destroy(&fe_bbr_info.sem); 2728 2729 break; 2730 } 2731 case CTL_DELAY_IO: { 2732 struct ctl_io_delay_info *delay_info; 2733 #ifdef CTL_IO_DELAY 2734 struct ctl_lun *lun; 2735 #endif /* CTL_IO_DELAY */ 2736 2737 delay_info = (struct ctl_io_delay_info *)addr; 2738 2739 #ifdef CTL_IO_DELAY 2740 mtx_lock(&softc->ctl_lock); 2741 2742 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2743 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2744 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2745 } else { 2746 lun = softc->ctl_luns[delay_info->lun_id]; 2747 mtx_lock(&lun->lun_lock); 2748 2749 delay_info->status = CTL_DELAY_STATUS_OK; 2750 2751 switch (delay_info->delay_type) { 2752 case CTL_DELAY_TYPE_CONT: 2753 break; 2754 case CTL_DELAY_TYPE_ONESHOT: 2755 break; 2756 default: 2757 delay_info->status = 2758 CTL_DELAY_STATUS_INVALID_TYPE; 2759 break; 2760 } 2761 2762 switch (delay_info->delay_loc) { 2763 case CTL_DELAY_LOC_DATAMOVE: 2764 lun->delay_info.datamove_type = 2765 delay_info->delay_type; 2766 lun->delay_info.datamove_delay = 2767 delay_info->delay_secs; 2768 break; 2769 case CTL_DELAY_LOC_DONE: 2770 lun->delay_info.done_type = 2771 delay_info->delay_type; 2772 lun->delay_info.done_delay = 2773 delay_info->delay_secs; 2774 break; 2775 default: 2776 delay_info->status = 2777 CTL_DELAY_STATUS_INVALID_LOC; 2778 break; 2779 } 2780 mtx_unlock(&lun->lun_lock); 2781 } 2782 2783 mtx_unlock(&softc->ctl_lock); 2784 #else 2785 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2786 #endif /* CTL_IO_DELAY */ 2787 break; 2788 } 2789 case CTL_REALSYNC_SET: { 2790 int *syncstate; 2791 2792 syncstate = (int *)addr; 2793 2794 mtx_lock(&softc->ctl_lock); 2795 switch (*syncstate) { 2796 case 0: 2797 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2798 break; 2799 case 1: 2800 softc->flags |= CTL_FLAG_REAL_SYNC; 2801 break; 2802 default: 2803 retval = EINVAL; 2804 break; 2805 } 2806 mtx_unlock(&softc->ctl_lock); 2807 break; 2808 } 2809 case CTL_REALSYNC_GET: { 2810 int *syncstate; 2811 2812 syncstate = (int*)addr; 2813 2814 mtx_lock(&softc->ctl_lock); 2815 if (softc->flags & CTL_FLAG_REAL_SYNC) 2816 *syncstate = 1; 2817 else 2818 *syncstate = 0; 2819 mtx_unlock(&softc->ctl_lock); 2820 2821 break; 2822 } 2823 case CTL_SETSYNC: 2824 case CTL_GETSYNC: { 2825 struct ctl_sync_info *sync_info; 2826 struct ctl_lun *lun; 2827 2828 sync_info = (struct ctl_sync_info *)addr; 2829 2830 mtx_lock(&softc->ctl_lock); 2831 lun = softc->ctl_luns[sync_info->lun_id]; 2832 if (lun == NULL) { 2833 mtx_unlock(&softc->ctl_lock); 2834 sync_info->status = CTL_GS_SYNC_NO_LUN; 2835 } 2836 /* 2837 * Get or set the sync interval. We're not bounds checking 2838 * in the set case, hopefully the user won't do something 2839 * silly. 2840 */ 2841 mtx_lock(&lun->lun_lock); 2842 mtx_unlock(&softc->ctl_lock); 2843 if (cmd == CTL_GETSYNC) 2844 sync_info->sync_interval = lun->sync_interval; 2845 else 2846 lun->sync_interval = sync_info->sync_interval; 2847 mtx_unlock(&lun->lun_lock); 2848 2849 sync_info->status = CTL_GS_SYNC_OK; 2850 2851 break; 2852 } 2853 case CTL_GETSTATS: { 2854 struct ctl_stats *stats; 2855 struct ctl_lun *lun; 2856 int i; 2857 2858 stats = (struct ctl_stats *)addr; 2859 2860 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2861 stats->alloc_len) { 2862 stats->status = CTL_SS_NEED_MORE_SPACE; 2863 stats->num_luns = softc->num_luns; 2864 break; 2865 } 2866 /* 2867 * XXX KDM no locking here. If the LUN list changes, 2868 * things can blow up. 2869 */ 2870 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2871 i++, lun = STAILQ_NEXT(lun, links)) { 2872 retval = copyout(&lun->stats, &stats->lun_stats[i], 2873 sizeof(lun->stats)); 2874 if (retval != 0) 2875 break; 2876 } 2877 stats->num_luns = softc->num_luns; 2878 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2879 softc->num_luns; 2880 stats->status = CTL_SS_OK; 2881 #ifdef CTL_TIME_IO 2882 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2883 #else 2884 stats->flags = CTL_STATS_FLAG_NONE; 2885 #endif 2886 getnanouptime(&stats->timestamp); 2887 break; 2888 } 2889 case CTL_ERROR_INJECT: { 2890 struct ctl_error_desc *err_desc, *new_err_desc; 2891 struct ctl_lun *lun; 2892 2893 err_desc = (struct ctl_error_desc *)addr; 2894 2895 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2896 M_WAITOK | M_ZERO); 2897 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2898 2899 mtx_lock(&softc->ctl_lock); 2900 lun = softc->ctl_luns[err_desc->lun_id]; 2901 if (lun == NULL) { 2902 mtx_unlock(&softc->ctl_lock); 2903 free(new_err_desc, M_CTL); 2904 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2905 __func__, (uintmax_t)err_desc->lun_id); 2906 retval = EINVAL; 2907 break; 2908 } 2909 mtx_lock(&lun->lun_lock); 2910 mtx_unlock(&softc->ctl_lock); 2911 2912 /* 2913 * We could do some checking here to verify the validity 2914 * of the request, but given the complexity of error 2915 * injection requests, the checking logic would be fairly 2916 * complex. 2917 * 2918 * For now, if the request is invalid, it just won't get 2919 * executed and might get deleted. 2920 */ 2921 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2922 2923 /* 2924 * XXX KDM check to make sure the serial number is unique, 2925 * in case we somehow manage to wrap. That shouldn't 2926 * happen for a very long time, but it's the right thing to 2927 * do. 2928 */ 2929 new_err_desc->serial = lun->error_serial; 2930 err_desc->serial = lun->error_serial; 2931 lun->error_serial++; 2932 2933 mtx_unlock(&lun->lun_lock); 2934 break; 2935 } 2936 case CTL_ERROR_INJECT_DELETE: { 2937 struct ctl_error_desc *delete_desc, *desc, *desc2; 2938 struct ctl_lun *lun; 2939 int delete_done; 2940 2941 delete_desc = (struct ctl_error_desc *)addr; 2942 delete_done = 0; 2943 2944 mtx_lock(&softc->ctl_lock); 2945 lun = softc->ctl_luns[delete_desc->lun_id]; 2946 if (lun == NULL) { 2947 mtx_unlock(&softc->ctl_lock); 2948 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2949 __func__, (uintmax_t)delete_desc->lun_id); 2950 retval = EINVAL; 2951 break; 2952 } 2953 mtx_lock(&lun->lun_lock); 2954 mtx_unlock(&softc->ctl_lock); 2955 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2956 if (desc->serial != delete_desc->serial) 2957 continue; 2958 2959 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2960 links); 2961 free(desc, M_CTL); 2962 delete_done = 1; 2963 } 2964 mtx_unlock(&lun->lun_lock); 2965 if (delete_done == 0) { 2966 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2967 "error serial %ju on LUN %u\n", __func__, 2968 delete_desc->serial, delete_desc->lun_id); 2969 retval = EINVAL; 2970 break; 2971 } 2972 break; 2973 } 2974 case CTL_DUMP_STRUCTS: { 2975 int i, j, k, idx; 2976 struct ctl_port *port; 2977 struct ctl_frontend *fe; 2978 2979 mtx_lock(&softc->ctl_lock); 2980 printf("CTL Persistent Reservation information start:\n"); 2981 for (i = 0; i < CTL_MAX_LUNS; i++) { 2982 struct ctl_lun *lun; 2983 2984 lun = softc->ctl_luns[i]; 2985 2986 if ((lun == NULL) 2987 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2988 continue; 2989 2990 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2991 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2992 idx = j * CTL_MAX_INIT_PER_PORT + k; 2993 if (lun->pr_keys[idx] == 0) 2994 continue; 2995 printf(" LUN %d port %d iid %d key " 2996 "%#jx\n", i, j, k, 2997 (uintmax_t)lun->pr_keys[idx]); 2998 } 2999 } 3000 } 3001 printf("CTL Persistent Reservation information end\n"); 3002 printf("CTL Ports:\n"); 3003 STAILQ_FOREACH(port, &softc->port_list, links) { 3004 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3005 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3006 port->frontend->name, port->port_type, 3007 port->physical_port, port->virtual_port, 3008 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3009 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3010 if (port->wwpn_iid[j].in_use == 0 && 3011 port->wwpn_iid[j].wwpn == 0 && 3012 port->wwpn_iid[j].name == NULL) 3013 continue; 3014 3015 printf(" iid %u use %d WWPN %#jx '%s'\n", 3016 j, port->wwpn_iid[j].in_use, 3017 (uintmax_t)port->wwpn_iid[j].wwpn, 3018 port->wwpn_iid[j].name); 3019 } 3020 } 3021 printf("CTL Port information end\n"); 3022 mtx_unlock(&softc->ctl_lock); 3023 /* 3024 * XXX KDM calling this without a lock. We'd likely want 3025 * to drop the lock before calling the frontend's dump 3026 * routine anyway. 3027 */ 3028 printf("CTL Frontends:\n"); 3029 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3030 printf(" Frontend '%s'\n", fe->name); 3031 if (fe->fe_dump != NULL) 3032 fe->fe_dump(); 3033 } 3034 printf("CTL Frontend information end\n"); 3035 break; 3036 } 3037 case CTL_LUN_REQ: { 3038 struct ctl_lun_req *lun_req; 3039 struct ctl_backend_driver *backend; 3040 3041 lun_req = (struct ctl_lun_req *)addr; 3042 3043 backend = ctl_backend_find(lun_req->backend); 3044 if (backend == NULL) { 3045 lun_req->status = CTL_LUN_ERROR; 3046 snprintf(lun_req->error_str, 3047 sizeof(lun_req->error_str), 3048 "Backend \"%s\" not found.", 3049 lun_req->backend); 3050 break; 3051 } 3052 if (lun_req->num_be_args > 0) { 3053 lun_req->kern_be_args = ctl_copyin_args( 3054 lun_req->num_be_args, 3055 lun_req->be_args, 3056 lun_req->error_str, 3057 sizeof(lun_req->error_str)); 3058 if (lun_req->kern_be_args == NULL) { 3059 lun_req->status = CTL_LUN_ERROR; 3060 break; 3061 } 3062 } 3063 3064 retval = backend->ioctl(dev, cmd, addr, flag, td); 3065 3066 if (lun_req->num_be_args > 0) { 3067 ctl_copyout_args(lun_req->num_be_args, 3068 lun_req->kern_be_args); 3069 ctl_free_args(lun_req->num_be_args, 3070 lun_req->kern_be_args); 3071 } 3072 break; 3073 } 3074 case CTL_LUN_LIST: { 3075 struct sbuf *sb; 3076 struct ctl_lun *lun; 3077 struct ctl_lun_list *list; 3078 struct ctl_option *opt; 3079 3080 list = (struct ctl_lun_list *)addr; 3081 3082 /* 3083 * Allocate a fixed length sbuf here, based on the length 3084 * of the user's buffer. We could allocate an auto-extending 3085 * buffer, and then tell the user how much larger our 3086 * amount of data is than his buffer, but that presents 3087 * some problems: 3088 * 3089 * 1. The sbuf(9) routines use a blocking malloc, and so 3090 * we can't hold a lock while calling them with an 3091 * auto-extending buffer. 3092 * 3093 * 2. There is not currently a LUN reference counting 3094 * mechanism, outside of outstanding transactions on 3095 * the LUN's OOA queue. So a LUN could go away on us 3096 * while we're getting the LUN number, backend-specific 3097 * information, etc. Thus, given the way things 3098 * currently work, we need to hold the CTL lock while 3099 * grabbing LUN information. 3100 * 3101 * So, from the user's standpoint, the best thing to do is 3102 * allocate what he thinks is a reasonable buffer length, 3103 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3104 * double the buffer length and try again. (And repeat 3105 * that until he succeeds.) 3106 */ 3107 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3108 if (sb == NULL) { 3109 list->status = CTL_LUN_LIST_ERROR; 3110 snprintf(list->error_str, sizeof(list->error_str), 3111 "Unable to allocate %d bytes for LUN list", 3112 list->alloc_len); 3113 break; 3114 } 3115 3116 sbuf_printf(sb, "<ctllunlist>\n"); 3117 3118 mtx_lock(&softc->ctl_lock); 3119 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3120 mtx_lock(&lun->lun_lock); 3121 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3122 (uintmax_t)lun->lun); 3123 3124 /* 3125 * Bail out as soon as we see that we've overfilled 3126 * the buffer. 3127 */ 3128 if (retval != 0) 3129 break; 3130 3131 retval = sbuf_printf(sb, "\t<backend_type>%s" 3132 "</backend_type>\n", 3133 (lun->backend == NULL) ? "none" : 3134 lun->backend->name); 3135 3136 if (retval != 0) 3137 break; 3138 3139 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3140 lun->be_lun->lun_type); 3141 3142 if (retval != 0) 3143 break; 3144 3145 if (lun->backend == NULL) { 3146 retval = sbuf_printf(sb, "</lun>\n"); 3147 if (retval != 0) 3148 break; 3149 continue; 3150 } 3151 3152 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3153 (lun->be_lun->maxlba > 0) ? 3154 lun->be_lun->maxlba + 1 : 0); 3155 3156 if (retval != 0) 3157 break; 3158 3159 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3160 lun->be_lun->blocksize); 3161 3162 if (retval != 0) 3163 break; 3164 3165 retval = sbuf_printf(sb, "\t<serial_number>"); 3166 3167 if (retval != 0) 3168 break; 3169 3170 retval = ctl_sbuf_printf_esc(sb, 3171 lun->be_lun->serial_num); 3172 3173 if (retval != 0) 3174 break; 3175 3176 retval = sbuf_printf(sb, "</serial_number>\n"); 3177 3178 if (retval != 0) 3179 break; 3180 3181 retval = sbuf_printf(sb, "\t<device_id>"); 3182 3183 if (retval != 0) 3184 break; 3185 3186 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3187 3188 if (retval != 0) 3189 break; 3190 3191 retval = sbuf_printf(sb, "</device_id>\n"); 3192 3193 if (retval != 0) 3194 break; 3195 3196 if (lun->backend->lun_info != NULL) { 3197 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3198 if (retval != 0) 3199 break; 3200 } 3201 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3202 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3203 opt->name, opt->value, opt->name); 3204 if (retval != 0) 3205 break; 3206 } 3207 3208 retval = sbuf_printf(sb, "</lun>\n"); 3209 3210 if (retval != 0) 3211 break; 3212 mtx_unlock(&lun->lun_lock); 3213 } 3214 if (lun != NULL) 3215 mtx_unlock(&lun->lun_lock); 3216 mtx_unlock(&softc->ctl_lock); 3217 3218 if ((retval != 0) 3219 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3220 retval = 0; 3221 sbuf_delete(sb); 3222 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3223 snprintf(list->error_str, sizeof(list->error_str), 3224 "Out of space, %d bytes is too small", 3225 list->alloc_len); 3226 break; 3227 } 3228 3229 sbuf_finish(sb); 3230 3231 retval = copyout(sbuf_data(sb), list->lun_xml, 3232 sbuf_len(sb) + 1); 3233 3234 list->fill_len = sbuf_len(sb) + 1; 3235 list->status = CTL_LUN_LIST_OK; 3236 sbuf_delete(sb); 3237 break; 3238 } 3239 case CTL_ISCSI: { 3240 struct ctl_iscsi *ci; 3241 struct ctl_frontend *fe; 3242 3243 ci = (struct ctl_iscsi *)addr; 3244 3245 fe = ctl_frontend_find("iscsi"); 3246 if (fe == NULL) { 3247 ci->status = CTL_ISCSI_ERROR; 3248 snprintf(ci->error_str, sizeof(ci->error_str), 3249 "Frontend \"iscsi\" not found."); 3250 break; 3251 } 3252 3253 retval = fe->ioctl(dev, cmd, addr, flag, td); 3254 break; 3255 } 3256 case CTL_PORT_REQ: { 3257 struct ctl_req *req; 3258 struct ctl_frontend *fe; 3259 3260 req = (struct ctl_req *)addr; 3261 3262 fe = ctl_frontend_find(req->driver); 3263 if (fe == NULL) { 3264 req->status = CTL_LUN_ERROR; 3265 snprintf(req->error_str, sizeof(req->error_str), 3266 "Frontend \"%s\" not found.", req->driver); 3267 break; 3268 } 3269 if (req->num_args > 0) { 3270 req->kern_args = ctl_copyin_args(req->num_args, 3271 req->args, req->error_str, sizeof(req->error_str)); 3272 if (req->kern_args == NULL) { 3273 req->status = CTL_LUN_ERROR; 3274 break; 3275 } 3276 } 3277 3278 retval = fe->ioctl(dev, cmd, addr, flag, td); 3279 3280 if (req->num_args > 0) { 3281 ctl_copyout_args(req->num_args, req->kern_args); 3282 ctl_free_args(req->num_args, req->kern_args); 3283 } 3284 break; 3285 } 3286 case CTL_PORT_LIST: { 3287 struct sbuf *sb; 3288 struct ctl_port *port; 3289 struct ctl_lun_list *list; 3290 struct ctl_option *opt; 3291 3292 list = (struct ctl_lun_list *)addr; 3293 3294 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3295 if (sb == NULL) { 3296 list->status = CTL_LUN_LIST_ERROR; 3297 snprintf(list->error_str, sizeof(list->error_str), 3298 "Unable to allocate %d bytes for LUN list", 3299 list->alloc_len); 3300 break; 3301 } 3302 3303 sbuf_printf(sb, "<ctlportlist>\n"); 3304 3305 mtx_lock(&softc->ctl_lock); 3306 STAILQ_FOREACH(port, &softc->port_list, links) { 3307 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3308 (uintmax_t)port->targ_port); 3309 3310 /* 3311 * Bail out as soon as we see that we've overfilled 3312 * the buffer. 3313 */ 3314 if (retval != 0) 3315 break; 3316 3317 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3318 "</frontend_type>\n", port->frontend->name); 3319 if (retval != 0) 3320 break; 3321 3322 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3323 port->port_type); 3324 if (retval != 0) 3325 break; 3326 3327 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3328 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3329 if (retval != 0) 3330 break; 3331 3332 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3333 port->port_name); 3334 if (retval != 0) 3335 break; 3336 3337 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3338 port->physical_port); 3339 if (retval != 0) 3340 break; 3341 3342 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3343 port->virtual_port); 3344 if (retval != 0) 3345 break; 3346 3347 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3348 (uintmax_t)port->wwnn); 3349 if (retval != 0) 3350 break; 3351 3352 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3353 (uintmax_t)port->wwpn); 3354 if (retval != 0) 3355 break; 3356 3357 if (port->port_info != NULL) { 3358 retval = port->port_info(port->onoff_arg, sb); 3359 if (retval != 0) 3360 break; 3361 } 3362 STAILQ_FOREACH(opt, &port->options, links) { 3363 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3364 opt->name, opt->value, opt->name); 3365 if (retval != 0) 3366 break; 3367 } 3368 3369 retval = sbuf_printf(sb, "</targ_port>\n"); 3370 if (retval != 0) 3371 break; 3372 } 3373 mtx_unlock(&softc->ctl_lock); 3374 3375 if ((retval != 0) 3376 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3377 retval = 0; 3378 sbuf_delete(sb); 3379 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3380 snprintf(list->error_str, sizeof(list->error_str), 3381 "Out of space, %d bytes is too small", 3382 list->alloc_len); 3383 break; 3384 } 3385 3386 sbuf_finish(sb); 3387 3388 retval = copyout(sbuf_data(sb), list->lun_xml, 3389 sbuf_len(sb) + 1); 3390 3391 list->fill_len = sbuf_len(sb) + 1; 3392 list->status = CTL_LUN_LIST_OK; 3393 sbuf_delete(sb); 3394 break; 3395 } 3396 default: { 3397 /* XXX KDM should we fix this? */ 3398 #if 0 3399 struct ctl_backend_driver *backend; 3400 unsigned int type; 3401 int found; 3402 3403 found = 0; 3404 3405 /* 3406 * We encode the backend type as the ioctl type for backend 3407 * ioctls. So parse it out here, and then search for a 3408 * backend of this type. 3409 */ 3410 type = _IOC_TYPE(cmd); 3411 3412 STAILQ_FOREACH(backend, &softc->be_list, links) { 3413 if (backend->type == type) { 3414 found = 1; 3415 break; 3416 } 3417 } 3418 if (found == 0) { 3419 printf("ctl: unknown ioctl command %#lx or backend " 3420 "%d\n", cmd, type); 3421 retval = EINVAL; 3422 break; 3423 } 3424 retval = backend->ioctl(dev, cmd, addr, flag, td); 3425 #endif 3426 retval = ENOTTY; 3427 break; 3428 } 3429 } 3430 return (retval); 3431 } 3432 3433 uint32_t 3434 ctl_get_initindex(struct ctl_nexus *nexus) 3435 { 3436 if (nexus->targ_port < CTL_MAX_PORTS) 3437 return (nexus->initid.id + 3438 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3439 else 3440 return (nexus->initid.id + 3441 ((nexus->targ_port - CTL_MAX_PORTS) * 3442 CTL_MAX_INIT_PER_PORT)); 3443 } 3444 3445 uint32_t 3446 ctl_get_resindex(struct ctl_nexus *nexus) 3447 { 3448 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3449 } 3450 3451 uint32_t 3452 ctl_port_idx(int port_num) 3453 { 3454 if (port_num < CTL_MAX_PORTS) 3455 return(port_num); 3456 else 3457 return(port_num - CTL_MAX_PORTS); 3458 } 3459 3460 static uint32_t 3461 ctl_map_lun(int port_num, uint32_t lun_id) 3462 { 3463 struct ctl_port *port; 3464 3465 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3466 if (port == NULL) 3467 return (UINT32_MAX); 3468 if (port->lun_map == NULL) 3469 return (lun_id); 3470 return (port->lun_map(port->targ_lun_arg, lun_id)); 3471 } 3472 3473 static uint32_t 3474 ctl_map_lun_back(int port_num, uint32_t lun_id) 3475 { 3476 struct ctl_port *port; 3477 uint32_t i; 3478 3479 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3480 if (port->lun_map == NULL) 3481 return (lun_id); 3482 for (i = 0; i < CTL_MAX_LUNS; i++) { 3483 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3484 return (i); 3485 } 3486 return (UINT32_MAX); 3487 } 3488 3489 /* 3490 * Note: This only works for bitmask sizes that are at least 32 bits, and 3491 * that are a power of 2. 3492 */ 3493 int 3494 ctl_ffz(uint32_t *mask, uint32_t size) 3495 { 3496 uint32_t num_chunks, num_pieces; 3497 int i, j; 3498 3499 num_chunks = (size >> 5); 3500 if (num_chunks == 0) 3501 num_chunks++; 3502 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3503 3504 for (i = 0; i < num_chunks; i++) { 3505 for (j = 0; j < num_pieces; j++) { 3506 if ((mask[i] & (1 << j)) == 0) 3507 return ((i << 5) + j); 3508 } 3509 } 3510 3511 return (-1); 3512 } 3513 3514 int 3515 ctl_set_mask(uint32_t *mask, uint32_t bit) 3516 { 3517 uint32_t chunk, piece; 3518 3519 chunk = bit >> 5; 3520 piece = bit % (sizeof(uint32_t) * 8); 3521 3522 if ((mask[chunk] & (1 << piece)) != 0) 3523 return (-1); 3524 else 3525 mask[chunk] |= (1 << piece); 3526 3527 return (0); 3528 } 3529 3530 int 3531 ctl_clear_mask(uint32_t *mask, uint32_t bit) 3532 { 3533 uint32_t chunk, piece; 3534 3535 chunk = bit >> 5; 3536 piece = bit % (sizeof(uint32_t) * 8); 3537 3538 if ((mask[chunk] & (1 << piece)) == 0) 3539 return (-1); 3540 else 3541 mask[chunk] &= ~(1 << piece); 3542 3543 return (0); 3544 } 3545 3546 int 3547 ctl_is_set(uint32_t *mask, uint32_t bit) 3548 { 3549 uint32_t chunk, piece; 3550 3551 chunk = bit >> 5; 3552 piece = bit % (sizeof(uint32_t) * 8); 3553 3554 if ((mask[chunk] & (1 << piece)) == 0) 3555 return (0); 3556 else 3557 return (1); 3558 } 3559 3560 #ifdef unused 3561 /* 3562 * The bus, target and lun are optional, they can be filled in later. 3563 * can_wait is used to determine whether we can wait on the malloc or not. 3564 */ 3565 union ctl_io* 3566 ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3567 uint32_t targ_lun, int can_wait) 3568 { 3569 union ctl_io *io; 3570 3571 if (can_wait) 3572 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3573 else 3574 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3575 3576 if (io != NULL) { 3577 io->io_hdr.io_type = io_type; 3578 io->io_hdr.targ_port = targ_port; 3579 /* 3580 * XXX KDM this needs to change/go away. We need to move 3581 * to a preallocated pool of ctl_scsiio structures. 3582 */ 3583 io->io_hdr.nexus.targ_target.id = targ_target; 3584 io->io_hdr.nexus.targ_lun = targ_lun; 3585 } 3586 3587 return (io); 3588 } 3589 3590 void 3591 ctl_kfree_io(union ctl_io *io) 3592 { 3593 free(io, M_CTL); 3594 } 3595 #endif /* unused */ 3596 3597 /* 3598 * ctl_softc, pool_type, total_ctl_io are passed in. 3599 * npool is passed out. 3600 */ 3601 int 3602 ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3603 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3604 { 3605 uint32_t i; 3606 union ctl_io *cur_io, *next_io; 3607 struct ctl_io_pool *pool; 3608 int retval; 3609 3610 retval = 0; 3611 3612 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3613 M_NOWAIT | M_ZERO); 3614 if (pool == NULL) { 3615 retval = ENOMEM; 3616 goto bailout; 3617 } 3618 3619 pool->type = pool_type; 3620 pool->ctl_softc = ctl_softc; 3621 3622 mtx_lock(&ctl_softc->pool_lock); 3623 pool->id = ctl_softc->cur_pool_id++; 3624 mtx_unlock(&ctl_softc->pool_lock); 3625 3626 pool->flags = CTL_POOL_FLAG_NONE; 3627 pool->refcount = 1; /* Reference for validity. */ 3628 STAILQ_INIT(&pool->free_queue); 3629 3630 /* 3631 * XXX KDM other options here: 3632 * - allocate a page at a time 3633 * - allocate one big chunk of memory. 3634 * Page allocation might work well, but would take a little more 3635 * tracking. 3636 */ 3637 for (i = 0; i < total_ctl_io; i++) { 3638 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3639 M_NOWAIT); 3640 if (cur_io == NULL) { 3641 retval = ENOMEM; 3642 break; 3643 } 3644 cur_io->io_hdr.pool = pool; 3645 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3646 pool->total_ctl_io++; 3647 pool->free_ctl_io++; 3648 } 3649 3650 if (retval != 0) { 3651 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3652 cur_io != NULL; cur_io = next_io) { 3653 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3654 links); 3655 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3656 ctl_io_hdr, links); 3657 free(cur_io, M_CTLIO); 3658 } 3659 3660 free(pool, M_CTL); 3661 goto bailout; 3662 } 3663 mtx_lock(&ctl_softc->pool_lock); 3664 ctl_softc->num_pools++; 3665 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3666 /* 3667 * Increment our usage count if this is an external consumer, so we 3668 * can't get unloaded until the external consumer (most likely a 3669 * FETD) unloads and frees his pool. 3670 * 3671 * XXX KDM will this increment the caller's module use count, or 3672 * mine? 3673 */ 3674 #if 0 3675 if ((pool_type != CTL_POOL_EMERGENCY) 3676 && (pool_type != CTL_POOL_INTERNAL) 3677 && (pool_type != CTL_POOL_4OTHERSC)) 3678 MOD_INC_USE_COUNT; 3679 #endif 3680 3681 mtx_unlock(&ctl_softc->pool_lock); 3682 3683 *npool = pool; 3684 3685 bailout: 3686 3687 return (retval); 3688 } 3689 3690 static int 3691 ctl_pool_acquire(struct ctl_io_pool *pool) 3692 { 3693 3694 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3695 3696 if (pool->flags & CTL_POOL_FLAG_INVALID) 3697 return (EINVAL); 3698 3699 pool->refcount++; 3700 3701 return (0); 3702 } 3703 3704 static void 3705 ctl_pool_release(struct ctl_io_pool *pool) 3706 { 3707 struct ctl_softc *ctl_softc = pool->ctl_softc; 3708 union ctl_io *io; 3709 3710 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3711 3712 if (--pool->refcount != 0) 3713 return; 3714 3715 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3716 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3717 links); 3718 free(io, M_CTLIO); 3719 } 3720 3721 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3722 ctl_softc->num_pools--; 3723 3724 /* 3725 * XXX KDM will this decrement the caller's usage count or mine? 3726 */ 3727 #if 0 3728 if ((pool->type != CTL_POOL_EMERGENCY) 3729 && (pool->type != CTL_POOL_INTERNAL) 3730 && (pool->type != CTL_POOL_4OTHERSC)) 3731 MOD_DEC_USE_COUNT; 3732 #endif 3733 3734 free(pool, M_CTL); 3735 } 3736 3737 void 3738 ctl_pool_free(struct ctl_io_pool *pool) 3739 { 3740 struct ctl_softc *ctl_softc; 3741 3742 if (pool == NULL) 3743 return; 3744 3745 ctl_softc = pool->ctl_softc; 3746 mtx_lock(&ctl_softc->pool_lock); 3747 pool->flags |= CTL_POOL_FLAG_INVALID; 3748 ctl_pool_release(pool); 3749 mtx_unlock(&ctl_softc->pool_lock); 3750 } 3751 3752 /* 3753 * This routine does not block (except for spinlocks of course). 3754 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3755 * possible. 3756 */ 3757 union ctl_io * 3758 ctl_alloc_io(void *pool_ref) 3759 { 3760 union ctl_io *io; 3761 struct ctl_softc *ctl_softc; 3762 struct ctl_io_pool *pool, *npool; 3763 struct ctl_io_pool *emergency_pool; 3764 3765 pool = (struct ctl_io_pool *)pool_ref; 3766 3767 if (pool == NULL) { 3768 printf("%s: pool is NULL\n", __func__); 3769 return (NULL); 3770 } 3771 3772 emergency_pool = NULL; 3773 3774 ctl_softc = pool->ctl_softc; 3775 3776 mtx_lock(&ctl_softc->pool_lock); 3777 /* 3778 * First, try to get the io structure from the user's pool. 3779 */ 3780 if (ctl_pool_acquire(pool) == 0) { 3781 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3782 if (io != NULL) { 3783 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3784 pool->total_allocated++; 3785 pool->free_ctl_io--; 3786 mtx_unlock(&ctl_softc->pool_lock); 3787 return (io); 3788 } else 3789 ctl_pool_release(pool); 3790 } 3791 /* 3792 * If he doesn't have any io structures left, search for an 3793 * emergency pool and grab one from there. 3794 */ 3795 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3796 if (npool->type != CTL_POOL_EMERGENCY) 3797 continue; 3798 3799 if (ctl_pool_acquire(npool) != 0) 3800 continue; 3801 3802 emergency_pool = npool; 3803 3804 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3805 if (io != NULL) { 3806 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3807 npool->total_allocated++; 3808 npool->free_ctl_io--; 3809 mtx_unlock(&ctl_softc->pool_lock); 3810 return (io); 3811 } else 3812 ctl_pool_release(npool); 3813 } 3814 3815 /* Drop the spinlock before we malloc */ 3816 mtx_unlock(&ctl_softc->pool_lock); 3817 3818 /* 3819 * The emergency pool (if it exists) didn't have one, so try an 3820 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3821 */ 3822 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3823 if (io != NULL) { 3824 /* 3825 * If the emergency pool exists but is empty, add this 3826 * ctl_io to its list when it gets freed. 3827 */ 3828 if (emergency_pool != NULL) { 3829 mtx_lock(&ctl_softc->pool_lock); 3830 if (ctl_pool_acquire(emergency_pool) == 0) { 3831 io->io_hdr.pool = emergency_pool; 3832 emergency_pool->total_ctl_io++; 3833 /* 3834 * Need to bump this, otherwise 3835 * total_allocated and total_freed won't 3836 * match when we no longer have anything 3837 * outstanding. 3838 */ 3839 emergency_pool->total_allocated++; 3840 } 3841 mtx_unlock(&ctl_softc->pool_lock); 3842 } else 3843 io->io_hdr.pool = NULL; 3844 } 3845 3846 return (io); 3847 } 3848 3849 void 3850 ctl_free_io(union ctl_io *io) 3851 { 3852 if (io == NULL) 3853 return; 3854 3855 /* 3856 * If this ctl_io has a pool, return it to that pool. 3857 */ 3858 if (io->io_hdr.pool != NULL) { 3859 struct ctl_io_pool *pool; 3860 3861 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3862 mtx_lock(&pool->ctl_softc->pool_lock); 3863 io->io_hdr.io_type = 0xff; 3864 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3865 pool->total_freed++; 3866 pool->free_ctl_io++; 3867 ctl_pool_release(pool); 3868 mtx_unlock(&pool->ctl_softc->pool_lock); 3869 } else { 3870 /* 3871 * Otherwise, just free it. We probably malloced it and 3872 * the emergency pool wasn't available. 3873 */ 3874 free(io, M_CTLIO); 3875 } 3876 3877 } 3878 3879 void 3880 ctl_zero_io(union ctl_io *io) 3881 { 3882 void *pool_ref; 3883 3884 if (io == NULL) 3885 return; 3886 3887 /* 3888 * May need to preserve linked list pointers at some point too. 3889 */ 3890 pool_ref = io->io_hdr.pool; 3891 3892 memset(io, 0, sizeof(*io)); 3893 3894 io->io_hdr.pool = pool_ref; 3895 } 3896 3897 /* 3898 * This routine is currently used for internal copies of ctl_ios that need 3899 * to persist for some reason after we've already returned status to the 3900 * FETD. (Thus the flag set.) 3901 * 3902 * XXX XXX 3903 * Note that this makes a blind copy of all fields in the ctl_io, except 3904 * for the pool reference. This includes any memory that has been 3905 * allocated! That memory will no longer be valid after done has been 3906 * called, so this would be VERY DANGEROUS for command that actually does 3907 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3908 * start and stop commands, which don't transfer any data, so this is not a 3909 * problem. If it is used for anything else, the caller would also need to 3910 * allocate data buffer space and this routine would need to be modified to 3911 * copy the data buffer(s) as well. 3912 */ 3913 void 3914 ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3915 { 3916 void *pool_ref; 3917 3918 if ((src == NULL) 3919 || (dest == NULL)) 3920 return; 3921 3922 /* 3923 * May need to preserve linked list pointers at some point too. 3924 */ 3925 pool_ref = dest->io_hdr.pool; 3926 3927 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3928 3929 dest->io_hdr.pool = pool_ref; 3930 /* 3931 * We need to know that this is an internal copy, and doesn't need 3932 * to get passed back to the FETD that allocated it. 3933 */ 3934 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3935 } 3936 3937 #ifdef NEEDTOPORT 3938 static void 3939 ctl_update_power_subpage(struct copan_power_subpage *page) 3940 { 3941 int num_luns, num_partitions, config_type; 3942 struct ctl_softc *softc; 3943 cs_BOOL_t aor_present, shelf_50pct_power; 3944 cs_raidset_personality_t rs_type; 3945 int max_active_luns; 3946 3947 softc = control_softc; 3948 3949 /* subtract out the processor LUN */ 3950 num_luns = softc->num_luns - 1; 3951 /* 3952 * Default to 7 LUNs active, which was the only number we allowed 3953 * in the past. 3954 */ 3955 max_active_luns = 7; 3956 3957 num_partitions = config_GetRsPartitionInfo(); 3958 config_type = config_GetConfigType(); 3959 shelf_50pct_power = config_GetShelfPowerMode(); 3960 aor_present = config_IsAorRsPresent(); 3961 3962 rs_type = ddb_GetRsRaidType(1); 3963 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3964 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3965 EPRINT(0, "Unsupported RS type %d!", rs_type); 3966 } 3967 3968 3969 page->total_luns = num_luns; 3970 3971 switch (config_type) { 3972 case 40: 3973 /* 3974 * In a 40 drive configuration, it doesn't matter what DC 3975 * cards we have, whether we have AOR enabled or not, 3976 * partitioning or not, or what type of RAIDset we have. 3977 * In that scenario, we can power up every LUN we present 3978 * to the user. 3979 */ 3980 max_active_luns = num_luns; 3981 3982 break; 3983 case 64: 3984 if (shelf_50pct_power == CS_FALSE) { 3985 /* 25% power */ 3986 if (aor_present == CS_TRUE) { 3987 if (rs_type == 3988 CS_RAIDSET_PERSONALITY_RAID5) { 3989 max_active_luns = 7; 3990 } else if (rs_type == 3991 CS_RAIDSET_PERSONALITY_RAID1){ 3992 max_active_luns = 14; 3993 } else { 3994 /* XXX KDM now what?? */ 3995 } 3996 } else { 3997 if (rs_type == 3998 CS_RAIDSET_PERSONALITY_RAID5) { 3999 max_active_luns = 8; 4000 } else if (rs_type == 4001 CS_RAIDSET_PERSONALITY_RAID1){ 4002 max_active_luns = 16; 4003 } else { 4004 /* XXX KDM now what?? */ 4005 } 4006 } 4007 } else { 4008 /* 50% power */ 4009 /* 4010 * With 50% power in a 64 drive configuration, we 4011 * can power all LUNs we present. 4012 */ 4013 max_active_luns = num_luns; 4014 } 4015 break; 4016 case 112: 4017 if (shelf_50pct_power == CS_FALSE) { 4018 /* 25% power */ 4019 if (aor_present == CS_TRUE) { 4020 if (rs_type == 4021 CS_RAIDSET_PERSONALITY_RAID5) { 4022 max_active_luns = 7; 4023 } else if (rs_type == 4024 CS_RAIDSET_PERSONALITY_RAID1){ 4025 max_active_luns = 14; 4026 } else { 4027 /* XXX KDM now what?? */ 4028 } 4029 } else { 4030 if (rs_type == 4031 CS_RAIDSET_PERSONALITY_RAID5) { 4032 max_active_luns = 8; 4033 } else if (rs_type == 4034 CS_RAIDSET_PERSONALITY_RAID1){ 4035 max_active_luns = 16; 4036 } else { 4037 /* XXX KDM now what?? */ 4038 } 4039 } 4040 } else { 4041 /* 50% power */ 4042 if (aor_present == CS_TRUE) { 4043 if (rs_type == 4044 CS_RAIDSET_PERSONALITY_RAID5) { 4045 max_active_luns = 14; 4046 } else if (rs_type == 4047 CS_RAIDSET_PERSONALITY_RAID1){ 4048 /* 4049 * We're assuming here that disk 4050 * caching is enabled, and so we're 4051 * able to power up half of each 4052 * LUN, and cache all writes. 4053 */ 4054 max_active_luns = num_luns; 4055 } else { 4056 /* XXX KDM now what?? */ 4057 } 4058 } else { 4059 if (rs_type == 4060 CS_RAIDSET_PERSONALITY_RAID5) { 4061 max_active_luns = 15; 4062 } else if (rs_type == 4063 CS_RAIDSET_PERSONALITY_RAID1){ 4064 max_active_luns = 30; 4065 } else { 4066 /* XXX KDM now what?? */ 4067 } 4068 } 4069 } 4070 break; 4071 default: 4072 /* 4073 * In this case, we have an unknown configuration, so we 4074 * just use the default from above. 4075 */ 4076 break; 4077 } 4078 4079 page->max_active_luns = max_active_luns; 4080 #if 0 4081 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4082 page->total_luns, page->max_active_luns); 4083 #endif 4084 } 4085 #endif /* NEEDTOPORT */ 4086 4087 /* 4088 * This routine could be used in the future to load default and/or saved 4089 * mode page parameters for a particuar lun. 4090 */ 4091 static int 4092 ctl_init_page_index(struct ctl_lun *lun) 4093 { 4094 int i; 4095 struct ctl_page_index *page_index; 4096 struct ctl_softc *softc; 4097 const char *value; 4098 4099 memcpy(&lun->mode_pages.index, page_index_template, 4100 sizeof(page_index_template)); 4101 4102 softc = lun->ctl_softc; 4103 4104 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4105 4106 page_index = &lun->mode_pages.index[i]; 4107 /* 4108 * If this is a disk-only mode page, there's no point in 4109 * setting it up. For some pages, we have to have some 4110 * basic information about the disk in order to calculate the 4111 * mode page data. 4112 */ 4113 if ((lun->be_lun->lun_type != T_DIRECT) 4114 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4115 continue; 4116 4117 switch (page_index->page_code & SMPH_PC_MASK) { 4118 case SMS_FORMAT_DEVICE_PAGE: { 4119 struct scsi_format_page *format_page; 4120 4121 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4122 panic("subpage is incorrect!"); 4123 4124 /* 4125 * Sectors per track are set above. Bytes per 4126 * sector need to be set here on a per-LUN basis. 4127 */ 4128 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4129 &format_page_default, 4130 sizeof(format_page_default)); 4131 memcpy(&lun->mode_pages.format_page[ 4132 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4133 sizeof(format_page_changeable)); 4134 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4135 &format_page_default, 4136 sizeof(format_page_default)); 4137 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4138 &format_page_default, 4139 sizeof(format_page_default)); 4140 4141 format_page = &lun->mode_pages.format_page[ 4142 CTL_PAGE_CURRENT]; 4143 scsi_ulto2b(lun->be_lun->blocksize, 4144 format_page->bytes_per_sector); 4145 4146 format_page = &lun->mode_pages.format_page[ 4147 CTL_PAGE_DEFAULT]; 4148 scsi_ulto2b(lun->be_lun->blocksize, 4149 format_page->bytes_per_sector); 4150 4151 format_page = &lun->mode_pages.format_page[ 4152 CTL_PAGE_SAVED]; 4153 scsi_ulto2b(lun->be_lun->blocksize, 4154 format_page->bytes_per_sector); 4155 4156 page_index->page_data = 4157 (uint8_t *)lun->mode_pages.format_page; 4158 break; 4159 } 4160 case SMS_RIGID_DISK_PAGE: { 4161 struct scsi_rigid_disk_page *rigid_disk_page; 4162 uint32_t sectors_per_cylinder; 4163 uint64_t cylinders; 4164 #ifndef __XSCALE__ 4165 int shift; 4166 #endif /* !__XSCALE__ */ 4167 4168 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4169 panic("invalid subpage value %d", 4170 page_index->subpage); 4171 4172 /* 4173 * Rotation rate and sectors per track are set 4174 * above. We calculate the cylinders here based on 4175 * capacity. Due to the number of heads and 4176 * sectors per track we're using, smaller arrays 4177 * may turn out to have 0 cylinders. Linux and 4178 * FreeBSD don't pay attention to these mode pages 4179 * to figure out capacity, but Solaris does. It 4180 * seems to deal with 0 cylinders just fine, and 4181 * works out a fake geometry based on the capacity. 4182 */ 4183 memcpy(&lun->mode_pages.rigid_disk_page[ 4184 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4185 sizeof(rigid_disk_page_default)); 4186 memcpy(&lun->mode_pages.rigid_disk_page[ 4187 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4188 sizeof(rigid_disk_page_changeable)); 4189 memcpy(&lun->mode_pages.rigid_disk_page[ 4190 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4191 sizeof(rigid_disk_page_default)); 4192 memcpy(&lun->mode_pages.rigid_disk_page[ 4193 CTL_PAGE_SAVED], &rigid_disk_page_default, 4194 sizeof(rigid_disk_page_default)); 4195 4196 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4197 CTL_DEFAULT_HEADS; 4198 4199 /* 4200 * The divide method here will be more accurate, 4201 * probably, but results in floating point being 4202 * used in the kernel on i386 (__udivdi3()). On the 4203 * XScale, though, __udivdi3() is implemented in 4204 * software. 4205 * 4206 * The shift method for cylinder calculation is 4207 * accurate if sectors_per_cylinder is a power of 4208 * 2. Otherwise it might be slightly off -- you 4209 * might have a bit of a truncation problem. 4210 */ 4211 #ifdef __XSCALE__ 4212 cylinders = (lun->be_lun->maxlba + 1) / 4213 sectors_per_cylinder; 4214 #else 4215 for (shift = 31; shift > 0; shift--) { 4216 if (sectors_per_cylinder & (1 << shift)) 4217 break; 4218 } 4219 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4220 #endif 4221 4222 /* 4223 * We've basically got 3 bytes, or 24 bits for the 4224 * cylinder size in the mode page. If we're over, 4225 * just round down to 2^24. 4226 */ 4227 if (cylinders > 0xffffff) 4228 cylinders = 0xffffff; 4229 4230 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4231 CTL_PAGE_CURRENT]; 4232 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4233 4234 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4235 CTL_PAGE_DEFAULT]; 4236 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4237 4238 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4239 CTL_PAGE_SAVED]; 4240 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4241 4242 page_index->page_data = 4243 (uint8_t *)lun->mode_pages.rigid_disk_page; 4244 break; 4245 } 4246 case SMS_CACHING_PAGE: { 4247 struct scsi_caching_page *caching_page; 4248 4249 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4250 panic("invalid subpage value %d", 4251 page_index->subpage); 4252 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4253 &caching_page_default, 4254 sizeof(caching_page_default)); 4255 memcpy(&lun->mode_pages.caching_page[ 4256 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4257 sizeof(caching_page_changeable)); 4258 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4259 &caching_page_default, 4260 sizeof(caching_page_default)); 4261 caching_page = &lun->mode_pages.caching_page[ 4262 CTL_PAGE_SAVED]; 4263 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4264 if (value != NULL && strcmp(value, "off") == 0) 4265 caching_page->flags1 &= ~SCP_WCE; 4266 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4267 if (value != NULL && strcmp(value, "off") == 0) 4268 caching_page->flags1 |= SCP_RCD; 4269 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4270 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4271 sizeof(caching_page_default)); 4272 page_index->page_data = 4273 (uint8_t *)lun->mode_pages.caching_page; 4274 break; 4275 } 4276 case SMS_CONTROL_MODE_PAGE: { 4277 struct scsi_control_page *control_page; 4278 4279 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4280 panic("invalid subpage value %d", 4281 page_index->subpage); 4282 4283 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4284 &control_page_default, 4285 sizeof(control_page_default)); 4286 memcpy(&lun->mode_pages.control_page[ 4287 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4288 sizeof(control_page_changeable)); 4289 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4290 &control_page_default, 4291 sizeof(control_page_default)); 4292 control_page = &lun->mode_pages.control_page[ 4293 CTL_PAGE_SAVED]; 4294 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4295 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4296 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4297 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4298 } 4299 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4300 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4301 sizeof(control_page_default)); 4302 page_index->page_data = 4303 (uint8_t *)lun->mode_pages.control_page; 4304 break; 4305 4306 } 4307 case SMS_VENDOR_SPECIFIC_PAGE:{ 4308 switch (page_index->subpage) { 4309 case PWR_SUBPAGE_CODE: { 4310 struct copan_power_subpage *current_page, 4311 *saved_page; 4312 4313 memcpy(&lun->mode_pages.power_subpage[ 4314 CTL_PAGE_CURRENT], 4315 &power_page_default, 4316 sizeof(power_page_default)); 4317 memcpy(&lun->mode_pages.power_subpage[ 4318 CTL_PAGE_CHANGEABLE], 4319 &power_page_changeable, 4320 sizeof(power_page_changeable)); 4321 memcpy(&lun->mode_pages.power_subpage[ 4322 CTL_PAGE_DEFAULT], 4323 &power_page_default, 4324 sizeof(power_page_default)); 4325 memcpy(&lun->mode_pages.power_subpage[ 4326 CTL_PAGE_SAVED], 4327 &power_page_default, 4328 sizeof(power_page_default)); 4329 page_index->page_data = 4330 (uint8_t *)lun->mode_pages.power_subpage; 4331 4332 current_page = (struct copan_power_subpage *) 4333 (page_index->page_data + 4334 (page_index->page_len * 4335 CTL_PAGE_CURRENT)); 4336 saved_page = (struct copan_power_subpage *) 4337 (page_index->page_data + 4338 (page_index->page_len * 4339 CTL_PAGE_SAVED)); 4340 break; 4341 } 4342 case APS_SUBPAGE_CODE: { 4343 struct copan_aps_subpage *current_page, 4344 *saved_page; 4345 4346 // This gets set multiple times but 4347 // it should always be the same. It's 4348 // only done during init so who cares. 4349 index_to_aps_page = i; 4350 4351 memcpy(&lun->mode_pages.aps_subpage[ 4352 CTL_PAGE_CURRENT], 4353 &aps_page_default, 4354 sizeof(aps_page_default)); 4355 memcpy(&lun->mode_pages.aps_subpage[ 4356 CTL_PAGE_CHANGEABLE], 4357 &aps_page_changeable, 4358 sizeof(aps_page_changeable)); 4359 memcpy(&lun->mode_pages.aps_subpage[ 4360 CTL_PAGE_DEFAULT], 4361 &aps_page_default, 4362 sizeof(aps_page_default)); 4363 memcpy(&lun->mode_pages.aps_subpage[ 4364 CTL_PAGE_SAVED], 4365 &aps_page_default, 4366 sizeof(aps_page_default)); 4367 page_index->page_data = 4368 (uint8_t *)lun->mode_pages.aps_subpage; 4369 4370 current_page = (struct copan_aps_subpage *) 4371 (page_index->page_data + 4372 (page_index->page_len * 4373 CTL_PAGE_CURRENT)); 4374 saved_page = (struct copan_aps_subpage *) 4375 (page_index->page_data + 4376 (page_index->page_len * 4377 CTL_PAGE_SAVED)); 4378 break; 4379 } 4380 case DBGCNF_SUBPAGE_CODE: { 4381 struct copan_debugconf_subpage *current_page, 4382 *saved_page; 4383 4384 memcpy(&lun->mode_pages.debugconf_subpage[ 4385 CTL_PAGE_CURRENT], 4386 &debugconf_page_default, 4387 sizeof(debugconf_page_default)); 4388 memcpy(&lun->mode_pages.debugconf_subpage[ 4389 CTL_PAGE_CHANGEABLE], 4390 &debugconf_page_changeable, 4391 sizeof(debugconf_page_changeable)); 4392 memcpy(&lun->mode_pages.debugconf_subpage[ 4393 CTL_PAGE_DEFAULT], 4394 &debugconf_page_default, 4395 sizeof(debugconf_page_default)); 4396 memcpy(&lun->mode_pages.debugconf_subpage[ 4397 CTL_PAGE_SAVED], 4398 &debugconf_page_default, 4399 sizeof(debugconf_page_default)); 4400 page_index->page_data = 4401 (uint8_t *)lun->mode_pages.debugconf_subpage; 4402 4403 current_page = (struct copan_debugconf_subpage *) 4404 (page_index->page_data + 4405 (page_index->page_len * 4406 CTL_PAGE_CURRENT)); 4407 saved_page = (struct copan_debugconf_subpage *) 4408 (page_index->page_data + 4409 (page_index->page_len * 4410 CTL_PAGE_SAVED)); 4411 break; 4412 } 4413 default: 4414 panic("invalid subpage value %d", 4415 page_index->subpage); 4416 break; 4417 } 4418 break; 4419 } 4420 default: 4421 panic("invalid page value %d", 4422 page_index->page_code & SMPH_PC_MASK); 4423 break; 4424 } 4425 } 4426 4427 return (CTL_RETVAL_COMPLETE); 4428 } 4429 4430 /* 4431 * LUN allocation. 4432 * 4433 * Requirements: 4434 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4435 * wants us to allocate the LUN and he can block. 4436 * - ctl_softc is always set 4437 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4438 * 4439 * Returns 0 for success, non-zero (errno) for failure. 4440 */ 4441 static int 4442 ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4443 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4444 { 4445 struct ctl_lun *nlun, *lun; 4446 struct ctl_port *port; 4447 struct scsi_vpd_id_descriptor *desc; 4448 struct scsi_vpd_id_t10 *t10id; 4449 const char *eui, *naa, *scsiname, *vendor, *value; 4450 int lun_number, i, lun_malloced; 4451 int devidlen, idlen1, idlen2 = 0, len; 4452 4453 if (be_lun == NULL) 4454 return (EINVAL); 4455 4456 /* 4457 * We currently only support Direct Access or Processor LUN types. 4458 */ 4459 switch (be_lun->lun_type) { 4460 case T_DIRECT: 4461 break; 4462 case T_PROCESSOR: 4463 break; 4464 case T_SEQUENTIAL: 4465 case T_CHANGER: 4466 default: 4467 be_lun->lun_config_status(be_lun->be_lun, 4468 CTL_LUN_CONFIG_FAILURE); 4469 break; 4470 } 4471 if (ctl_lun == NULL) { 4472 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4473 lun_malloced = 1; 4474 } else { 4475 lun_malloced = 0; 4476 lun = ctl_lun; 4477 } 4478 4479 memset(lun, 0, sizeof(*lun)); 4480 if (lun_malloced) 4481 lun->flags = CTL_LUN_MALLOCED; 4482 4483 /* Generate LUN ID. */ 4484 devidlen = max(CTL_DEVID_MIN_LEN, 4485 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4486 idlen1 = sizeof(*t10id) + devidlen; 4487 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4488 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4489 if (scsiname != NULL) { 4490 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4491 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4492 } 4493 eui = ctl_get_opt(&be_lun->options, "eui"); 4494 if (eui != NULL) { 4495 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4496 } 4497 naa = ctl_get_opt(&be_lun->options, "naa"); 4498 if (naa != NULL) { 4499 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4500 } 4501 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4502 M_CTL, M_WAITOK | M_ZERO); 4503 lun->lun_devid->len = len; 4504 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4505 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4506 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4507 desc->length = idlen1; 4508 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4509 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4510 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4511 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4512 } else { 4513 strncpy(t10id->vendor, vendor, 4514 min(sizeof(t10id->vendor), strlen(vendor))); 4515 } 4516 strncpy((char *)t10id->vendor_spec_id, 4517 (char *)be_lun->device_id, devidlen); 4518 if (scsiname != NULL) { 4519 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4520 desc->length); 4521 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4522 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4523 SVPD_ID_TYPE_SCSI_NAME; 4524 desc->length = idlen2; 4525 strlcpy(desc->identifier, scsiname, idlen2); 4526 } 4527 if (eui != NULL) { 4528 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4529 desc->length); 4530 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4531 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4532 SVPD_ID_TYPE_EUI64; 4533 desc->length = 8; 4534 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4535 } 4536 if (naa != NULL) { 4537 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4538 desc->length); 4539 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4540 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4541 SVPD_ID_TYPE_NAA; 4542 desc->length = 8; 4543 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4544 } 4545 4546 mtx_lock(&ctl_softc->ctl_lock); 4547 /* 4548 * See if the caller requested a particular LUN number. If so, see 4549 * if it is available. Otherwise, allocate the first available LUN. 4550 */ 4551 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4552 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4553 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4554 mtx_unlock(&ctl_softc->ctl_lock); 4555 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4556 printf("ctl: requested LUN ID %d is higher " 4557 "than CTL_MAX_LUNS - 1 (%d)\n", 4558 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4559 } else { 4560 /* 4561 * XXX KDM return an error, or just assign 4562 * another LUN ID in this case?? 4563 */ 4564 printf("ctl: requested LUN ID %d is already " 4565 "in use\n", be_lun->req_lun_id); 4566 } 4567 if (lun->flags & CTL_LUN_MALLOCED) 4568 free(lun, M_CTL); 4569 be_lun->lun_config_status(be_lun->be_lun, 4570 CTL_LUN_CONFIG_FAILURE); 4571 return (ENOSPC); 4572 } 4573 lun_number = be_lun->req_lun_id; 4574 } else { 4575 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4576 if (lun_number == -1) { 4577 mtx_unlock(&ctl_softc->ctl_lock); 4578 printf("ctl: can't allocate LUN on target %ju, out of " 4579 "LUNs\n", (uintmax_t)target_id.id); 4580 if (lun->flags & CTL_LUN_MALLOCED) 4581 free(lun, M_CTL); 4582 be_lun->lun_config_status(be_lun->be_lun, 4583 CTL_LUN_CONFIG_FAILURE); 4584 return (ENOSPC); 4585 } 4586 } 4587 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4588 4589 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4590 lun->target = target_id; 4591 lun->lun = lun_number; 4592 lun->be_lun = be_lun; 4593 /* 4594 * The processor LUN is always enabled. Disk LUNs come on line 4595 * disabled, and must be enabled by the backend. 4596 */ 4597 lun->flags |= CTL_LUN_DISABLED; 4598 lun->backend = be_lun->be; 4599 be_lun->ctl_lun = lun; 4600 be_lun->lun_id = lun_number; 4601 atomic_add_int(&be_lun->be->num_luns, 1); 4602 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4603 lun->flags |= CTL_LUN_STOPPED; 4604 4605 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4606 lun->flags |= CTL_LUN_INOPERABLE; 4607 4608 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4609 lun->flags |= CTL_LUN_PRIMARY_SC; 4610 4611 value = ctl_get_opt(&be_lun->options, "readonly"); 4612 if (value != NULL && strcmp(value, "on") == 0) 4613 lun->flags |= CTL_LUN_READONLY; 4614 4615 lun->ctl_softc = ctl_softc; 4616 TAILQ_INIT(&lun->ooa_queue); 4617 TAILQ_INIT(&lun->blocked_queue); 4618 STAILQ_INIT(&lun->error_list); 4619 ctl_tpc_lun_init(lun); 4620 4621 /* 4622 * Initialize the mode page index. 4623 */ 4624 ctl_init_page_index(lun); 4625 4626 /* 4627 * Set the poweron UA for all initiators on this LUN only. 4628 */ 4629 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4630 lun->pending_ua[i] = CTL_UA_POWERON; 4631 4632 /* 4633 * Now, before we insert this lun on the lun list, set the lun 4634 * inventory changed UA for all other luns. 4635 */ 4636 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4637 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4638 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4639 } 4640 } 4641 4642 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4643 4644 ctl_softc->ctl_luns[lun_number] = lun; 4645 4646 ctl_softc->num_luns++; 4647 4648 /* Setup statistics gathering */ 4649 lun->stats.device_type = be_lun->lun_type; 4650 lun->stats.lun_number = lun_number; 4651 if (lun->stats.device_type == T_DIRECT) 4652 lun->stats.blocksize = be_lun->blocksize; 4653 else 4654 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4655 for (i = 0;i < CTL_MAX_PORTS;i++) 4656 lun->stats.ports[i].targ_port = i; 4657 4658 mtx_unlock(&ctl_softc->ctl_lock); 4659 4660 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4661 4662 /* 4663 * Run through each registered FETD and bring it online if it isn't 4664 * already. Enable the target ID if it hasn't been enabled, and 4665 * enable this particular LUN. 4666 */ 4667 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4668 int retval; 4669 4670 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4671 if (retval != 0) { 4672 printf("ctl_alloc_lun: FETD %s port %d returned error " 4673 "%d for lun_enable on target %ju lun %d\n", 4674 port->port_name, port->targ_port, retval, 4675 (uintmax_t)target_id.id, lun_number); 4676 } else 4677 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4678 } 4679 return (0); 4680 } 4681 4682 /* 4683 * Delete a LUN. 4684 * Assumptions: 4685 * - LUN has already been marked invalid and any pending I/O has been taken 4686 * care of. 4687 */ 4688 static int 4689 ctl_free_lun(struct ctl_lun *lun) 4690 { 4691 struct ctl_softc *softc; 4692 #if 0 4693 struct ctl_port *port; 4694 #endif 4695 struct ctl_lun *nlun; 4696 int i; 4697 4698 softc = lun->ctl_softc; 4699 4700 mtx_assert(&softc->ctl_lock, MA_OWNED); 4701 4702 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4703 4704 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4705 4706 softc->ctl_luns[lun->lun] = NULL; 4707 4708 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4709 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4710 4711 softc->num_luns--; 4712 4713 /* 4714 * XXX KDM this scheme only works for a single target/multiple LUN 4715 * setup. It needs to be revamped for a multiple target scheme. 4716 * 4717 * XXX KDM this results in port->lun_disable() getting called twice, 4718 * once when ctl_disable_lun() is called, and a second time here. 4719 * We really need to re-think the LUN disable semantics. There 4720 * should probably be several steps/levels to LUN removal: 4721 * - disable 4722 * - invalidate 4723 * - free 4724 * 4725 * Right now we only have a disable method when communicating to 4726 * the front end ports, at least for individual LUNs. 4727 */ 4728 #if 0 4729 STAILQ_FOREACH(port, &softc->port_list, links) { 4730 int retval; 4731 4732 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4733 lun->lun); 4734 if (retval != 0) { 4735 printf("ctl_free_lun: FETD %s port %d returned error " 4736 "%d for lun_disable on target %ju lun %jd\n", 4737 port->port_name, port->targ_port, retval, 4738 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4739 } 4740 4741 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4742 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4743 4744 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4745 if (retval != 0) { 4746 printf("ctl_free_lun: FETD %s port %d " 4747 "returned error %d for targ_disable on " 4748 "target %ju\n", port->port_name, 4749 port->targ_port, retval, 4750 (uintmax_t)lun->target.id); 4751 } else 4752 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4753 4754 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4755 continue; 4756 4757 #if 0 4758 port->port_offline(port->onoff_arg); 4759 port->status &= ~CTL_PORT_STATUS_ONLINE; 4760 #endif 4761 } 4762 } 4763 #endif 4764 4765 /* 4766 * Tell the backend to free resources, if this LUN has a backend. 4767 */ 4768 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4769 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4770 4771 ctl_tpc_lun_shutdown(lun); 4772 mtx_destroy(&lun->lun_lock); 4773 free(lun->lun_devid, M_CTL); 4774 if (lun->flags & CTL_LUN_MALLOCED) 4775 free(lun, M_CTL); 4776 4777 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4778 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4779 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4780 } 4781 } 4782 4783 return (0); 4784 } 4785 4786 static void 4787 ctl_create_lun(struct ctl_be_lun *be_lun) 4788 { 4789 struct ctl_softc *ctl_softc; 4790 4791 ctl_softc = control_softc; 4792 4793 /* 4794 * ctl_alloc_lun() should handle all potential failure cases. 4795 */ 4796 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4797 } 4798 4799 int 4800 ctl_add_lun(struct ctl_be_lun *be_lun) 4801 { 4802 struct ctl_softc *ctl_softc = control_softc; 4803 4804 mtx_lock(&ctl_softc->ctl_lock); 4805 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4806 mtx_unlock(&ctl_softc->ctl_lock); 4807 wakeup(&ctl_softc->pending_lun_queue); 4808 4809 return (0); 4810 } 4811 4812 int 4813 ctl_enable_lun(struct ctl_be_lun *be_lun) 4814 { 4815 struct ctl_softc *ctl_softc; 4816 struct ctl_port *port, *nport; 4817 struct ctl_lun *lun; 4818 int retval; 4819 4820 ctl_softc = control_softc; 4821 4822 lun = (struct ctl_lun *)be_lun->ctl_lun; 4823 4824 mtx_lock(&ctl_softc->ctl_lock); 4825 mtx_lock(&lun->lun_lock); 4826 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4827 /* 4828 * eh? Why did we get called if the LUN is already 4829 * enabled? 4830 */ 4831 mtx_unlock(&lun->lun_lock); 4832 mtx_unlock(&ctl_softc->ctl_lock); 4833 return (0); 4834 } 4835 lun->flags &= ~CTL_LUN_DISABLED; 4836 mtx_unlock(&lun->lun_lock); 4837 4838 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4839 nport = STAILQ_NEXT(port, links); 4840 4841 /* 4842 * Drop the lock while we call the FETD's enable routine. 4843 * This can lead to a callback into CTL (at least in the 4844 * case of the internal initiator frontend. 4845 */ 4846 mtx_unlock(&ctl_softc->ctl_lock); 4847 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4848 mtx_lock(&ctl_softc->ctl_lock); 4849 if (retval != 0) { 4850 printf("%s: FETD %s port %d returned error " 4851 "%d for lun_enable on target %ju lun %jd\n", 4852 __func__, port->port_name, port->targ_port, retval, 4853 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4854 } 4855 #if 0 4856 else { 4857 /* NOTE: TODO: why does lun enable affect port status? */ 4858 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4859 } 4860 #endif 4861 } 4862 4863 mtx_unlock(&ctl_softc->ctl_lock); 4864 4865 return (0); 4866 } 4867 4868 int 4869 ctl_disable_lun(struct ctl_be_lun *be_lun) 4870 { 4871 struct ctl_softc *ctl_softc; 4872 struct ctl_port *port; 4873 struct ctl_lun *lun; 4874 int retval; 4875 4876 ctl_softc = control_softc; 4877 4878 lun = (struct ctl_lun *)be_lun->ctl_lun; 4879 4880 mtx_lock(&ctl_softc->ctl_lock); 4881 mtx_lock(&lun->lun_lock); 4882 if (lun->flags & CTL_LUN_DISABLED) { 4883 mtx_unlock(&lun->lun_lock); 4884 mtx_unlock(&ctl_softc->ctl_lock); 4885 return (0); 4886 } 4887 lun->flags |= CTL_LUN_DISABLED; 4888 mtx_unlock(&lun->lun_lock); 4889 4890 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4891 mtx_unlock(&ctl_softc->ctl_lock); 4892 /* 4893 * Drop the lock before we call the frontend's disable 4894 * routine, to avoid lock order reversals. 4895 * 4896 * XXX KDM what happens if the frontend list changes while 4897 * we're traversing it? It's unlikely, but should be handled. 4898 */ 4899 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4900 lun->lun); 4901 mtx_lock(&ctl_softc->ctl_lock); 4902 if (retval != 0) { 4903 printf("ctl_alloc_lun: FETD %s port %d returned error " 4904 "%d for lun_disable on target %ju lun %jd\n", 4905 port->port_name, port->targ_port, retval, 4906 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4907 } 4908 } 4909 4910 mtx_unlock(&ctl_softc->ctl_lock); 4911 4912 return (0); 4913 } 4914 4915 int 4916 ctl_start_lun(struct ctl_be_lun *be_lun) 4917 { 4918 struct ctl_softc *ctl_softc; 4919 struct ctl_lun *lun; 4920 4921 ctl_softc = control_softc; 4922 4923 lun = (struct ctl_lun *)be_lun->ctl_lun; 4924 4925 mtx_lock(&lun->lun_lock); 4926 lun->flags &= ~CTL_LUN_STOPPED; 4927 mtx_unlock(&lun->lun_lock); 4928 4929 return (0); 4930 } 4931 4932 int 4933 ctl_stop_lun(struct ctl_be_lun *be_lun) 4934 { 4935 struct ctl_softc *ctl_softc; 4936 struct ctl_lun *lun; 4937 4938 ctl_softc = control_softc; 4939 4940 lun = (struct ctl_lun *)be_lun->ctl_lun; 4941 4942 mtx_lock(&lun->lun_lock); 4943 lun->flags |= CTL_LUN_STOPPED; 4944 mtx_unlock(&lun->lun_lock); 4945 4946 return (0); 4947 } 4948 4949 int 4950 ctl_lun_offline(struct ctl_be_lun *be_lun) 4951 { 4952 struct ctl_softc *ctl_softc; 4953 struct ctl_lun *lun; 4954 4955 ctl_softc = control_softc; 4956 4957 lun = (struct ctl_lun *)be_lun->ctl_lun; 4958 4959 mtx_lock(&lun->lun_lock); 4960 lun->flags |= CTL_LUN_OFFLINE; 4961 mtx_unlock(&lun->lun_lock); 4962 4963 return (0); 4964 } 4965 4966 int 4967 ctl_lun_online(struct ctl_be_lun *be_lun) 4968 { 4969 struct ctl_softc *ctl_softc; 4970 struct ctl_lun *lun; 4971 4972 ctl_softc = control_softc; 4973 4974 lun = (struct ctl_lun *)be_lun->ctl_lun; 4975 4976 mtx_lock(&lun->lun_lock); 4977 lun->flags &= ~CTL_LUN_OFFLINE; 4978 mtx_unlock(&lun->lun_lock); 4979 4980 return (0); 4981 } 4982 4983 int 4984 ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4985 { 4986 struct ctl_softc *ctl_softc; 4987 struct ctl_lun *lun; 4988 4989 ctl_softc = control_softc; 4990 4991 lun = (struct ctl_lun *)be_lun->ctl_lun; 4992 4993 mtx_lock(&lun->lun_lock); 4994 4995 /* 4996 * The LUN needs to be disabled before it can be marked invalid. 4997 */ 4998 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4999 mtx_unlock(&lun->lun_lock); 5000 return (-1); 5001 } 5002 /* 5003 * Mark the LUN invalid. 5004 */ 5005 lun->flags |= CTL_LUN_INVALID; 5006 5007 /* 5008 * If there is nothing in the OOA queue, go ahead and free the LUN. 5009 * If we have something in the OOA queue, we'll free it when the 5010 * last I/O completes. 5011 */ 5012 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5013 mtx_unlock(&lun->lun_lock); 5014 mtx_lock(&ctl_softc->ctl_lock); 5015 ctl_free_lun(lun); 5016 mtx_unlock(&ctl_softc->ctl_lock); 5017 } else 5018 mtx_unlock(&lun->lun_lock); 5019 5020 return (0); 5021 } 5022 5023 int 5024 ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5025 { 5026 struct ctl_softc *ctl_softc; 5027 struct ctl_lun *lun; 5028 5029 ctl_softc = control_softc; 5030 lun = (struct ctl_lun *)be_lun->ctl_lun; 5031 5032 mtx_lock(&lun->lun_lock); 5033 lun->flags |= CTL_LUN_INOPERABLE; 5034 mtx_unlock(&lun->lun_lock); 5035 5036 return (0); 5037 } 5038 5039 int 5040 ctl_lun_operable(struct ctl_be_lun *be_lun) 5041 { 5042 struct ctl_softc *ctl_softc; 5043 struct ctl_lun *lun; 5044 5045 ctl_softc = control_softc; 5046 lun = (struct ctl_lun *)be_lun->ctl_lun; 5047 5048 mtx_lock(&lun->lun_lock); 5049 lun->flags &= ~CTL_LUN_INOPERABLE; 5050 mtx_unlock(&lun->lun_lock); 5051 5052 return (0); 5053 } 5054 5055 int 5056 ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5057 int lock) 5058 { 5059 struct ctl_softc *softc; 5060 struct ctl_lun *lun; 5061 struct copan_aps_subpage *current_sp; 5062 struct ctl_page_index *page_index; 5063 int i; 5064 5065 softc = control_softc; 5066 5067 mtx_lock(&softc->ctl_lock); 5068 5069 lun = (struct ctl_lun *)be_lun->ctl_lun; 5070 mtx_lock(&lun->lun_lock); 5071 5072 page_index = NULL; 5073 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5074 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5075 APS_PAGE_CODE) 5076 continue; 5077 5078 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5079 continue; 5080 page_index = &lun->mode_pages.index[i]; 5081 } 5082 5083 if (page_index == NULL) { 5084 mtx_unlock(&lun->lun_lock); 5085 mtx_unlock(&softc->ctl_lock); 5086 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5087 (uintmax_t)lun->lun); 5088 return (1); 5089 } 5090 #if 0 5091 if ((softc->aps_locked_lun != 0) 5092 && (softc->aps_locked_lun != lun->lun)) { 5093 printf("%s: attempt to lock LUN %llu when %llu is already " 5094 "locked\n"); 5095 mtx_unlock(&lun->lun_lock); 5096 mtx_unlock(&softc->ctl_lock); 5097 return (1); 5098 } 5099 #endif 5100 5101 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5102 (page_index->page_len * CTL_PAGE_CURRENT)); 5103 5104 if (lock != 0) { 5105 current_sp->lock_active = APS_LOCK_ACTIVE; 5106 softc->aps_locked_lun = lun->lun; 5107 } else { 5108 current_sp->lock_active = 0; 5109 softc->aps_locked_lun = 0; 5110 } 5111 5112 5113 /* 5114 * If we're in HA mode, try to send the lock message to the other 5115 * side. 5116 */ 5117 if (ctl_is_single == 0) { 5118 int isc_retval; 5119 union ctl_ha_msg lock_msg; 5120 5121 lock_msg.hdr.nexus = *nexus; 5122 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5123 if (lock != 0) 5124 lock_msg.aps.lock_flag = 1; 5125 else 5126 lock_msg.aps.lock_flag = 0; 5127 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5128 sizeof(lock_msg), 0); 5129 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5130 printf("%s: APS (lock=%d) error returned from " 5131 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5132 mtx_unlock(&lun->lun_lock); 5133 mtx_unlock(&softc->ctl_lock); 5134 return (1); 5135 } 5136 } 5137 5138 mtx_unlock(&lun->lun_lock); 5139 mtx_unlock(&softc->ctl_lock); 5140 5141 return (0); 5142 } 5143 5144 void 5145 ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5146 { 5147 struct ctl_lun *lun; 5148 struct ctl_softc *softc; 5149 int i; 5150 5151 softc = control_softc; 5152 5153 lun = (struct ctl_lun *)be_lun->ctl_lun; 5154 5155 mtx_lock(&lun->lun_lock); 5156 5157 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5158 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5159 5160 mtx_unlock(&lun->lun_lock); 5161 } 5162 5163 /* 5164 * Backend "memory move is complete" callback for requests that never 5165 * make it down to say RAIDCore's configuration code. 5166 */ 5167 int 5168 ctl_config_move_done(union ctl_io *io) 5169 { 5170 int retval; 5171 5172 retval = CTL_RETVAL_COMPLETE; 5173 5174 5175 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5176 /* 5177 * XXX KDM this shouldn't happen, but what if it does? 5178 */ 5179 if (io->io_hdr.io_type != CTL_IO_SCSI) 5180 panic("I/O type isn't CTL_IO_SCSI!"); 5181 5182 if ((io->io_hdr.port_status == 0) 5183 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5184 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5185 io->io_hdr.status = CTL_SUCCESS; 5186 else if ((io->io_hdr.port_status != 0) 5187 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5188 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5189 /* 5190 * For hardware error sense keys, the sense key 5191 * specific value is defined to be a retry count, 5192 * but we use it to pass back an internal FETD 5193 * error code. XXX KDM Hopefully the FETD is only 5194 * using 16 bits for an error code, since that's 5195 * all the space we have in the sks field. 5196 */ 5197 ctl_set_internal_failure(&io->scsiio, 5198 /*sks_valid*/ 1, 5199 /*retry_count*/ 5200 io->io_hdr.port_status); 5201 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5202 free(io->scsiio.kern_data_ptr, M_CTL); 5203 ctl_done(io); 5204 goto bailout; 5205 } 5206 5207 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5208 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5209 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5210 /* 5211 * XXX KDM just assuming a single pointer here, and not a 5212 * S/G list. If we start using S/G lists for config data, 5213 * we'll need to know how to clean them up here as well. 5214 */ 5215 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5216 free(io->scsiio.kern_data_ptr, M_CTL); 5217 /* Hopefully the user has already set the status... */ 5218 ctl_done(io); 5219 } else { 5220 /* 5221 * XXX KDM now we need to continue data movement. Some 5222 * options: 5223 * - call ctl_scsiio() again? We don't do this for data 5224 * writes, because for those at least we know ahead of 5225 * time where the write will go and how long it is. For 5226 * config writes, though, that information is largely 5227 * contained within the write itself, thus we need to 5228 * parse out the data again. 5229 * 5230 * - Call some other function once the data is in? 5231 */ 5232 5233 /* 5234 * XXX KDM call ctl_scsiio() again for now, and check flag 5235 * bits to see whether we're allocated or not. 5236 */ 5237 retval = ctl_scsiio(&io->scsiio); 5238 } 5239 bailout: 5240 return (retval); 5241 } 5242 5243 /* 5244 * This gets called by a backend driver when it is done with a 5245 * data_submit method. 5246 */ 5247 void 5248 ctl_data_submit_done(union ctl_io *io) 5249 { 5250 /* 5251 * If the IO_CONT flag is set, we need to call the supplied 5252 * function to continue processing the I/O, instead of completing 5253 * the I/O just yet. 5254 * 5255 * If there is an error, though, we don't want to keep processing. 5256 * Instead, just send status back to the initiator. 5257 */ 5258 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5259 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5260 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5261 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5262 io->scsiio.io_cont(io); 5263 return; 5264 } 5265 ctl_done(io); 5266 } 5267 5268 /* 5269 * This gets called by a backend driver when it is done with a 5270 * configuration write. 5271 */ 5272 void 5273 ctl_config_write_done(union ctl_io *io) 5274 { 5275 uint8_t *buf; 5276 5277 /* 5278 * If the IO_CONT flag is set, we need to call the supplied 5279 * function to continue processing the I/O, instead of completing 5280 * the I/O just yet. 5281 * 5282 * If there is an error, though, we don't want to keep processing. 5283 * Instead, just send status back to the initiator. 5284 */ 5285 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5286 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5287 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5288 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5289 io->scsiio.io_cont(io); 5290 return; 5291 } 5292 /* 5293 * Since a configuration write can be done for commands that actually 5294 * have data allocated, like write buffer, and commands that have 5295 * no data, like start/stop unit, we need to check here. 5296 */ 5297 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5298 buf = io->scsiio.kern_data_ptr; 5299 else 5300 buf = NULL; 5301 ctl_done(io); 5302 if (buf) 5303 free(buf, M_CTL); 5304 } 5305 5306 /* 5307 * SCSI release command. 5308 */ 5309 int 5310 ctl_scsi_release(struct ctl_scsiio *ctsio) 5311 { 5312 int length, longid, thirdparty_id, resv_id; 5313 struct ctl_softc *ctl_softc; 5314 struct ctl_lun *lun; 5315 uint32_t residx; 5316 5317 length = 0; 5318 resv_id = 0; 5319 5320 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5321 5322 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5323 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5324 ctl_softc = control_softc; 5325 5326 switch (ctsio->cdb[0]) { 5327 case RELEASE_10: { 5328 struct scsi_release_10 *cdb; 5329 5330 cdb = (struct scsi_release_10 *)ctsio->cdb; 5331 5332 if (cdb->byte2 & SR10_LONGID) 5333 longid = 1; 5334 else 5335 thirdparty_id = cdb->thirdparty_id; 5336 5337 resv_id = cdb->resv_id; 5338 length = scsi_2btoul(cdb->length); 5339 break; 5340 } 5341 } 5342 5343 5344 /* 5345 * XXX KDM right now, we only support LUN reservation. We don't 5346 * support 3rd party reservations, or extent reservations, which 5347 * might actually need the parameter list. If we've gotten this 5348 * far, we've got a LUN reservation. Anything else got kicked out 5349 * above. So, according to SPC, ignore the length. 5350 */ 5351 length = 0; 5352 5353 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5354 && (length > 0)) { 5355 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5356 ctsio->kern_data_len = length; 5357 ctsio->kern_total_len = length; 5358 ctsio->kern_data_resid = 0; 5359 ctsio->kern_rel_offset = 0; 5360 ctsio->kern_sg_entries = 0; 5361 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5362 ctsio->be_move_done = ctl_config_move_done; 5363 ctl_datamove((union ctl_io *)ctsio); 5364 5365 return (CTL_RETVAL_COMPLETE); 5366 } 5367 5368 if (length > 0) 5369 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5370 5371 mtx_lock(&lun->lun_lock); 5372 5373 /* 5374 * According to SPC, it is not an error for an intiator to attempt 5375 * to release a reservation on a LUN that isn't reserved, or that 5376 * is reserved by another initiator. The reservation can only be 5377 * released, though, by the initiator who made it or by one of 5378 * several reset type events. 5379 */ 5380 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5381 lun->flags &= ~CTL_LUN_RESERVED; 5382 5383 mtx_unlock(&lun->lun_lock); 5384 5385 ctsio->scsi_status = SCSI_STATUS_OK; 5386 ctsio->io_hdr.status = CTL_SUCCESS; 5387 5388 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5389 free(ctsio->kern_data_ptr, M_CTL); 5390 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5391 } 5392 5393 ctl_done((union ctl_io *)ctsio); 5394 return (CTL_RETVAL_COMPLETE); 5395 } 5396 5397 int 5398 ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5399 { 5400 int extent, thirdparty, longid; 5401 int resv_id, length; 5402 uint64_t thirdparty_id; 5403 struct ctl_softc *ctl_softc; 5404 struct ctl_lun *lun; 5405 uint32_t residx; 5406 5407 extent = 0; 5408 thirdparty = 0; 5409 longid = 0; 5410 resv_id = 0; 5411 length = 0; 5412 thirdparty_id = 0; 5413 5414 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5415 5416 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5417 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5418 ctl_softc = control_softc; 5419 5420 switch (ctsio->cdb[0]) { 5421 case RESERVE_10: { 5422 struct scsi_reserve_10 *cdb; 5423 5424 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5425 5426 if (cdb->byte2 & SR10_LONGID) 5427 longid = 1; 5428 else 5429 thirdparty_id = cdb->thirdparty_id; 5430 5431 resv_id = cdb->resv_id; 5432 length = scsi_2btoul(cdb->length); 5433 break; 5434 } 5435 } 5436 5437 /* 5438 * XXX KDM right now, we only support LUN reservation. We don't 5439 * support 3rd party reservations, or extent reservations, which 5440 * might actually need the parameter list. If we've gotten this 5441 * far, we've got a LUN reservation. Anything else got kicked out 5442 * above. So, according to SPC, ignore the length. 5443 */ 5444 length = 0; 5445 5446 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5447 && (length > 0)) { 5448 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5449 ctsio->kern_data_len = length; 5450 ctsio->kern_total_len = length; 5451 ctsio->kern_data_resid = 0; 5452 ctsio->kern_rel_offset = 0; 5453 ctsio->kern_sg_entries = 0; 5454 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5455 ctsio->be_move_done = ctl_config_move_done; 5456 ctl_datamove((union ctl_io *)ctsio); 5457 5458 return (CTL_RETVAL_COMPLETE); 5459 } 5460 5461 if (length > 0) 5462 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5463 5464 mtx_lock(&lun->lun_lock); 5465 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5466 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5467 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5468 goto bailout; 5469 } 5470 5471 lun->flags |= CTL_LUN_RESERVED; 5472 lun->res_idx = residx; 5473 5474 ctsio->scsi_status = SCSI_STATUS_OK; 5475 ctsio->io_hdr.status = CTL_SUCCESS; 5476 5477 bailout: 5478 mtx_unlock(&lun->lun_lock); 5479 5480 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5481 free(ctsio->kern_data_ptr, M_CTL); 5482 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5483 } 5484 5485 ctl_done((union ctl_io *)ctsio); 5486 return (CTL_RETVAL_COMPLETE); 5487 } 5488 5489 int 5490 ctl_start_stop(struct ctl_scsiio *ctsio) 5491 { 5492 struct scsi_start_stop_unit *cdb; 5493 struct ctl_lun *lun; 5494 struct ctl_softc *ctl_softc; 5495 int retval; 5496 5497 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5498 5499 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5500 ctl_softc = control_softc; 5501 retval = 0; 5502 5503 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5504 5505 /* 5506 * XXX KDM 5507 * We don't support the immediate bit on a stop unit. In order to 5508 * do that, we would need to code up a way to know that a stop is 5509 * pending, and hold off any new commands until it completes, one 5510 * way or another. Then we could accept or reject those commands 5511 * depending on its status. We would almost need to do the reverse 5512 * of what we do below for an immediate start -- return the copy of 5513 * the ctl_io to the FETD with status to send to the host (and to 5514 * free the copy!) and then free the original I/O once the stop 5515 * actually completes. That way, the OOA queue mechanism can work 5516 * to block commands that shouldn't proceed. Another alternative 5517 * would be to put the copy in the queue in place of the original, 5518 * and return the original back to the caller. That could be 5519 * slightly safer.. 5520 */ 5521 if ((cdb->byte2 & SSS_IMMED) 5522 && ((cdb->how & SSS_START) == 0)) { 5523 ctl_set_invalid_field(ctsio, 5524 /*sks_valid*/ 1, 5525 /*command*/ 1, 5526 /*field*/ 1, 5527 /*bit_valid*/ 1, 5528 /*bit*/ 0); 5529 ctl_done((union ctl_io *)ctsio); 5530 return (CTL_RETVAL_COMPLETE); 5531 } 5532 5533 if ((lun->flags & CTL_LUN_PR_RESERVED) 5534 && ((cdb->how & SSS_START)==0)) { 5535 uint32_t residx; 5536 5537 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5538 if (lun->pr_keys[residx] == 0 5539 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5540 5541 ctl_set_reservation_conflict(ctsio); 5542 ctl_done((union ctl_io *)ctsio); 5543 return (CTL_RETVAL_COMPLETE); 5544 } 5545 } 5546 5547 /* 5548 * If there is no backend on this device, we can't start or stop 5549 * it. In theory we shouldn't get any start/stop commands in the 5550 * first place at this level if the LUN doesn't have a backend. 5551 * That should get stopped by the command decode code. 5552 */ 5553 if (lun->backend == NULL) { 5554 ctl_set_invalid_opcode(ctsio); 5555 ctl_done((union ctl_io *)ctsio); 5556 return (CTL_RETVAL_COMPLETE); 5557 } 5558 5559 /* 5560 * XXX KDM Copan-specific offline behavior. 5561 * Figure out a reasonable way to port this? 5562 */ 5563 #ifdef NEEDTOPORT 5564 mtx_lock(&lun->lun_lock); 5565 5566 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5567 && (lun->flags & CTL_LUN_OFFLINE)) { 5568 /* 5569 * If the LUN is offline, and the on/offline bit isn't set, 5570 * reject the start or stop. Otherwise, let it through. 5571 */ 5572 mtx_unlock(&lun->lun_lock); 5573 ctl_set_lun_not_ready(ctsio); 5574 ctl_done((union ctl_io *)ctsio); 5575 } else { 5576 mtx_unlock(&lun->lun_lock); 5577 #endif /* NEEDTOPORT */ 5578 /* 5579 * This could be a start or a stop when we're online, 5580 * or a stop/offline or start/online. A start or stop when 5581 * we're offline is covered in the case above. 5582 */ 5583 /* 5584 * In the non-immediate case, we send the request to 5585 * the backend and return status to the user when 5586 * it is done. 5587 * 5588 * In the immediate case, we allocate a new ctl_io 5589 * to hold a copy of the request, and send that to 5590 * the backend. We then set good status on the 5591 * user's request and return it immediately. 5592 */ 5593 if (cdb->byte2 & SSS_IMMED) { 5594 union ctl_io *new_io; 5595 5596 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5597 if (new_io == NULL) { 5598 ctl_set_busy(ctsio); 5599 ctl_done((union ctl_io *)ctsio); 5600 } else { 5601 ctl_copy_io((union ctl_io *)ctsio, 5602 new_io); 5603 retval = lun->backend->config_write(new_io); 5604 ctl_set_success(ctsio); 5605 ctl_done((union ctl_io *)ctsio); 5606 } 5607 } else { 5608 retval = lun->backend->config_write( 5609 (union ctl_io *)ctsio); 5610 } 5611 #ifdef NEEDTOPORT 5612 } 5613 #endif 5614 return (retval); 5615 } 5616 5617 /* 5618 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5619 * we don't really do anything with the LBA and length fields if the user 5620 * passes them in. Instead we'll just flush out the cache for the entire 5621 * LUN. 5622 */ 5623 int 5624 ctl_sync_cache(struct ctl_scsiio *ctsio) 5625 { 5626 struct ctl_lun *lun; 5627 struct ctl_softc *ctl_softc; 5628 uint64_t starting_lba; 5629 uint32_t block_count; 5630 int retval; 5631 5632 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5633 5634 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5635 ctl_softc = control_softc; 5636 retval = 0; 5637 5638 switch (ctsio->cdb[0]) { 5639 case SYNCHRONIZE_CACHE: { 5640 struct scsi_sync_cache *cdb; 5641 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5642 5643 starting_lba = scsi_4btoul(cdb->begin_lba); 5644 block_count = scsi_2btoul(cdb->lb_count); 5645 break; 5646 } 5647 case SYNCHRONIZE_CACHE_16: { 5648 struct scsi_sync_cache_16 *cdb; 5649 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5650 5651 starting_lba = scsi_8btou64(cdb->begin_lba); 5652 block_count = scsi_4btoul(cdb->lb_count); 5653 break; 5654 } 5655 default: 5656 ctl_set_invalid_opcode(ctsio); 5657 ctl_done((union ctl_io *)ctsio); 5658 goto bailout; 5659 break; /* NOTREACHED */ 5660 } 5661 5662 /* 5663 * We check the LBA and length, but don't do anything with them. 5664 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5665 * get flushed. This check will just help satisfy anyone who wants 5666 * to see an error for an out of range LBA. 5667 */ 5668 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5669 ctl_set_lba_out_of_range(ctsio); 5670 ctl_done((union ctl_io *)ctsio); 5671 goto bailout; 5672 } 5673 5674 /* 5675 * If this LUN has no backend, we can't flush the cache anyway. 5676 */ 5677 if (lun->backend == NULL) { 5678 ctl_set_invalid_opcode(ctsio); 5679 ctl_done((union ctl_io *)ctsio); 5680 goto bailout; 5681 } 5682 5683 /* 5684 * Check to see whether we're configured to send the SYNCHRONIZE 5685 * CACHE command directly to the back end. 5686 */ 5687 mtx_lock(&lun->lun_lock); 5688 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5689 && (++(lun->sync_count) >= lun->sync_interval)) { 5690 lun->sync_count = 0; 5691 mtx_unlock(&lun->lun_lock); 5692 retval = lun->backend->config_write((union ctl_io *)ctsio); 5693 } else { 5694 mtx_unlock(&lun->lun_lock); 5695 ctl_set_success(ctsio); 5696 ctl_done((union ctl_io *)ctsio); 5697 } 5698 5699 bailout: 5700 5701 return (retval); 5702 } 5703 5704 int 5705 ctl_format(struct ctl_scsiio *ctsio) 5706 { 5707 struct scsi_format *cdb; 5708 struct ctl_lun *lun; 5709 struct ctl_softc *ctl_softc; 5710 int length, defect_list_len; 5711 5712 CTL_DEBUG_PRINT(("ctl_format\n")); 5713 5714 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5715 ctl_softc = control_softc; 5716 5717 cdb = (struct scsi_format *)ctsio->cdb; 5718 5719 length = 0; 5720 if (cdb->byte2 & SF_FMTDATA) { 5721 if (cdb->byte2 & SF_LONGLIST) 5722 length = sizeof(struct scsi_format_header_long); 5723 else 5724 length = sizeof(struct scsi_format_header_short); 5725 } 5726 5727 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5728 && (length > 0)) { 5729 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5730 ctsio->kern_data_len = length; 5731 ctsio->kern_total_len = length; 5732 ctsio->kern_data_resid = 0; 5733 ctsio->kern_rel_offset = 0; 5734 ctsio->kern_sg_entries = 0; 5735 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5736 ctsio->be_move_done = ctl_config_move_done; 5737 ctl_datamove((union ctl_io *)ctsio); 5738 5739 return (CTL_RETVAL_COMPLETE); 5740 } 5741 5742 defect_list_len = 0; 5743 5744 if (cdb->byte2 & SF_FMTDATA) { 5745 if (cdb->byte2 & SF_LONGLIST) { 5746 struct scsi_format_header_long *header; 5747 5748 header = (struct scsi_format_header_long *) 5749 ctsio->kern_data_ptr; 5750 5751 defect_list_len = scsi_4btoul(header->defect_list_len); 5752 if (defect_list_len != 0) { 5753 ctl_set_invalid_field(ctsio, 5754 /*sks_valid*/ 1, 5755 /*command*/ 0, 5756 /*field*/ 2, 5757 /*bit_valid*/ 0, 5758 /*bit*/ 0); 5759 goto bailout; 5760 } 5761 } else { 5762 struct scsi_format_header_short *header; 5763 5764 header = (struct scsi_format_header_short *) 5765 ctsio->kern_data_ptr; 5766 5767 defect_list_len = scsi_2btoul(header->defect_list_len); 5768 if (defect_list_len != 0) { 5769 ctl_set_invalid_field(ctsio, 5770 /*sks_valid*/ 1, 5771 /*command*/ 0, 5772 /*field*/ 2, 5773 /*bit_valid*/ 0, 5774 /*bit*/ 0); 5775 goto bailout; 5776 } 5777 } 5778 } 5779 5780 /* 5781 * The format command will clear out the "Medium format corrupted" 5782 * status if set by the configuration code. That status is really 5783 * just a way to notify the host that we have lost the media, and 5784 * get them to issue a command that will basically make them think 5785 * they're blowing away the media. 5786 */ 5787 mtx_lock(&lun->lun_lock); 5788 lun->flags &= ~CTL_LUN_INOPERABLE; 5789 mtx_unlock(&lun->lun_lock); 5790 5791 ctsio->scsi_status = SCSI_STATUS_OK; 5792 ctsio->io_hdr.status = CTL_SUCCESS; 5793 bailout: 5794 5795 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5796 free(ctsio->kern_data_ptr, M_CTL); 5797 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5798 } 5799 5800 ctl_done((union ctl_io *)ctsio); 5801 return (CTL_RETVAL_COMPLETE); 5802 } 5803 5804 int 5805 ctl_read_buffer(struct ctl_scsiio *ctsio) 5806 { 5807 struct scsi_read_buffer *cdb; 5808 struct ctl_lun *lun; 5809 int buffer_offset, len; 5810 static uint8_t descr[4]; 5811 static uint8_t echo_descr[4] = { 0 }; 5812 5813 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5814 5815 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5816 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5817 5818 if (lun->flags & CTL_LUN_PR_RESERVED) { 5819 uint32_t residx; 5820 5821 /* 5822 * XXX KDM need a lock here. 5823 */ 5824 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5825 if ((lun->res_type == SPR_TYPE_EX_AC 5826 && residx != lun->pr_res_idx) 5827 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5828 || lun->res_type == SPR_TYPE_EX_AC_AR) 5829 && lun->pr_keys[residx] == 0)) { 5830 ctl_set_reservation_conflict(ctsio); 5831 ctl_done((union ctl_io *)ctsio); 5832 return (CTL_RETVAL_COMPLETE); 5833 } 5834 } 5835 5836 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5837 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5838 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5839 ctl_set_invalid_field(ctsio, 5840 /*sks_valid*/ 1, 5841 /*command*/ 1, 5842 /*field*/ 1, 5843 /*bit_valid*/ 1, 5844 /*bit*/ 4); 5845 ctl_done((union ctl_io *)ctsio); 5846 return (CTL_RETVAL_COMPLETE); 5847 } 5848 5849 len = scsi_3btoul(cdb->length); 5850 buffer_offset = scsi_3btoul(cdb->offset); 5851 5852 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5853 ctl_set_invalid_field(ctsio, 5854 /*sks_valid*/ 1, 5855 /*command*/ 1, 5856 /*field*/ 6, 5857 /*bit_valid*/ 0, 5858 /*bit*/ 0); 5859 ctl_done((union ctl_io *)ctsio); 5860 return (CTL_RETVAL_COMPLETE); 5861 } 5862 5863 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5864 descr[0] = 0; 5865 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5866 ctsio->kern_data_ptr = descr; 5867 len = min(len, sizeof(descr)); 5868 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5869 ctsio->kern_data_ptr = echo_descr; 5870 len = min(len, sizeof(echo_descr)); 5871 } else 5872 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5873 ctsio->kern_data_len = len; 5874 ctsio->kern_total_len = len; 5875 ctsio->kern_data_resid = 0; 5876 ctsio->kern_rel_offset = 0; 5877 ctsio->kern_sg_entries = 0; 5878 ctsio->be_move_done = ctl_config_move_done; 5879 ctl_datamove((union ctl_io *)ctsio); 5880 5881 return (CTL_RETVAL_COMPLETE); 5882 } 5883 5884 int 5885 ctl_write_buffer(struct ctl_scsiio *ctsio) 5886 { 5887 struct scsi_write_buffer *cdb; 5888 struct ctl_lun *lun; 5889 int buffer_offset, len; 5890 5891 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5892 5893 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5894 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5895 5896 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5897 ctl_set_invalid_field(ctsio, 5898 /*sks_valid*/ 1, 5899 /*command*/ 1, 5900 /*field*/ 1, 5901 /*bit_valid*/ 1, 5902 /*bit*/ 4); 5903 ctl_done((union ctl_io *)ctsio); 5904 return (CTL_RETVAL_COMPLETE); 5905 } 5906 5907 len = scsi_3btoul(cdb->length); 5908 buffer_offset = scsi_3btoul(cdb->offset); 5909 5910 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5911 ctl_set_invalid_field(ctsio, 5912 /*sks_valid*/ 1, 5913 /*command*/ 1, 5914 /*field*/ 6, 5915 /*bit_valid*/ 0, 5916 /*bit*/ 0); 5917 ctl_done((union ctl_io *)ctsio); 5918 return (CTL_RETVAL_COMPLETE); 5919 } 5920 5921 /* 5922 * If we've got a kernel request that hasn't been malloced yet, 5923 * malloc it and tell the caller the data buffer is here. 5924 */ 5925 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5926 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5927 ctsio->kern_data_len = len; 5928 ctsio->kern_total_len = len; 5929 ctsio->kern_data_resid = 0; 5930 ctsio->kern_rel_offset = 0; 5931 ctsio->kern_sg_entries = 0; 5932 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5933 ctsio->be_move_done = ctl_config_move_done; 5934 ctl_datamove((union ctl_io *)ctsio); 5935 5936 return (CTL_RETVAL_COMPLETE); 5937 } 5938 5939 ctl_done((union ctl_io *)ctsio); 5940 5941 return (CTL_RETVAL_COMPLETE); 5942 } 5943 5944 int 5945 ctl_write_same(struct ctl_scsiio *ctsio) 5946 { 5947 struct ctl_lun *lun; 5948 struct ctl_lba_len_flags *lbalen; 5949 uint64_t lba; 5950 uint32_t num_blocks; 5951 int len, retval; 5952 uint8_t byte2; 5953 5954 retval = CTL_RETVAL_COMPLETE; 5955 5956 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5957 5958 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5959 5960 switch (ctsio->cdb[0]) { 5961 case WRITE_SAME_10: { 5962 struct scsi_write_same_10 *cdb; 5963 5964 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5965 5966 lba = scsi_4btoul(cdb->addr); 5967 num_blocks = scsi_2btoul(cdb->length); 5968 byte2 = cdb->byte2; 5969 break; 5970 } 5971 case WRITE_SAME_16: { 5972 struct scsi_write_same_16 *cdb; 5973 5974 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5975 5976 lba = scsi_8btou64(cdb->addr); 5977 num_blocks = scsi_4btoul(cdb->length); 5978 byte2 = cdb->byte2; 5979 break; 5980 } 5981 default: 5982 /* 5983 * We got a command we don't support. This shouldn't 5984 * happen, commands should be filtered out above us. 5985 */ 5986 ctl_set_invalid_opcode(ctsio); 5987 ctl_done((union ctl_io *)ctsio); 5988 5989 return (CTL_RETVAL_COMPLETE); 5990 break; /* NOTREACHED */ 5991 } 5992 5993 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5994 if ((byte2 & SWS_UNMAP) == 0 && 5995 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5996 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5997 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5998 ctl_done((union ctl_io *)ctsio); 5999 return (CTL_RETVAL_COMPLETE); 6000 } 6001 6002 /* 6003 * The first check is to make sure we're in bounds, the second 6004 * check is to catch wrap-around problems. If the lba + num blocks 6005 * is less than the lba, then we've wrapped around and the block 6006 * range is invalid anyway. 6007 */ 6008 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6009 || ((lba + num_blocks) < lba)) { 6010 ctl_set_lba_out_of_range(ctsio); 6011 ctl_done((union ctl_io *)ctsio); 6012 return (CTL_RETVAL_COMPLETE); 6013 } 6014 6015 /* Zero number of blocks means "to the last logical block" */ 6016 if (num_blocks == 0) { 6017 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6018 ctl_set_invalid_field(ctsio, 6019 /*sks_valid*/ 0, 6020 /*command*/ 1, 6021 /*field*/ 0, 6022 /*bit_valid*/ 0, 6023 /*bit*/ 0); 6024 ctl_done((union ctl_io *)ctsio); 6025 return (CTL_RETVAL_COMPLETE); 6026 } 6027 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6028 } 6029 6030 len = lun->be_lun->blocksize; 6031 6032 /* 6033 * If we've got a kernel request that hasn't been malloced yet, 6034 * malloc it and tell the caller the data buffer is here. 6035 */ 6036 if ((byte2 & SWS_NDOB) == 0 && 6037 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6038 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6039 ctsio->kern_data_len = len; 6040 ctsio->kern_total_len = len; 6041 ctsio->kern_data_resid = 0; 6042 ctsio->kern_rel_offset = 0; 6043 ctsio->kern_sg_entries = 0; 6044 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6045 ctsio->be_move_done = ctl_config_move_done; 6046 ctl_datamove((union ctl_io *)ctsio); 6047 6048 return (CTL_RETVAL_COMPLETE); 6049 } 6050 6051 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6052 lbalen->lba = lba; 6053 lbalen->len = num_blocks; 6054 lbalen->flags = byte2; 6055 retval = lun->backend->config_write((union ctl_io *)ctsio); 6056 6057 return (retval); 6058 } 6059 6060 int 6061 ctl_unmap(struct ctl_scsiio *ctsio) 6062 { 6063 struct ctl_lun *lun; 6064 struct scsi_unmap *cdb; 6065 struct ctl_ptr_len_flags *ptrlen; 6066 struct scsi_unmap_header *hdr; 6067 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6068 uint64_t lba; 6069 uint32_t num_blocks; 6070 int len, retval; 6071 uint8_t byte2; 6072 6073 retval = CTL_RETVAL_COMPLETE; 6074 6075 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6076 6077 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6078 cdb = (struct scsi_unmap *)ctsio->cdb; 6079 6080 len = scsi_2btoul(cdb->length); 6081 byte2 = cdb->byte2; 6082 6083 /* 6084 * If we've got a kernel request that hasn't been malloced yet, 6085 * malloc it and tell the caller the data buffer is here. 6086 */ 6087 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6088 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6089 ctsio->kern_data_len = len; 6090 ctsio->kern_total_len = len; 6091 ctsio->kern_data_resid = 0; 6092 ctsio->kern_rel_offset = 0; 6093 ctsio->kern_sg_entries = 0; 6094 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6095 ctsio->be_move_done = ctl_config_move_done; 6096 ctl_datamove((union ctl_io *)ctsio); 6097 6098 return (CTL_RETVAL_COMPLETE); 6099 } 6100 6101 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6102 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6103 if (len < sizeof (*hdr) || 6104 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6105 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6106 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6107 ctl_set_invalid_field(ctsio, 6108 /*sks_valid*/ 0, 6109 /*command*/ 0, 6110 /*field*/ 0, 6111 /*bit_valid*/ 0, 6112 /*bit*/ 0); 6113 ctl_done((union ctl_io *)ctsio); 6114 return (CTL_RETVAL_COMPLETE); 6115 } 6116 len = scsi_2btoul(hdr->desc_length); 6117 buf = (struct scsi_unmap_desc *)(hdr + 1); 6118 end = buf + len / sizeof(*buf); 6119 6120 endnz = buf; 6121 for (range = buf; range < end; range++) { 6122 lba = scsi_8btou64(range->lba); 6123 num_blocks = scsi_4btoul(range->length); 6124 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6125 || ((lba + num_blocks) < lba)) { 6126 ctl_set_lba_out_of_range(ctsio); 6127 ctl_done((union ctl_io *)ctsio); 6128 return (CTL_RETVAL_COMPLETE); 6129 } 6130 if (num_blocks != 0) 6131 endnz = range + 1; 6132 } 6133 6134 /* 6135 * Block backend can not handle zero last range. 6136 * Filter it out and return if there is nothing left. 6137 */ 6138 len = (uint8_t *)endnz - (uint8_t *)buf; 6139 if (len == 0) { 6140 ctl_set_success(ctsio); 6141 ctl_done((union ctl_io *)ctsio); 6142 return (CTL_RETVAL_COMPLETE); 6143 } 6144 6145 mtx_lock(&lun->lun_lock); 6146 ptrlen = (struct ctl_ptr_len_flags *) 6147 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6148 ptrlen->ptr = (void *)buf; 6149 ptrlen->len = len; 6150 ptrlen->flags = byte2; 6151 ctl_check_blocked(lun); 6152 mtx_unlock(&lun->lun_lock); 6153 6154 retval = lun->backend->config_write((union ctl_io *)ctsio); 6155 return (retval); 6156 } 6157 6158 /* 6159 * Note that this function currently doesn't actually do anything inside 6160 * CTL to enforce things if the DQue bit is turned on. 6161 * 6162 * Also note that this function can't be used in the default case, because 6163 * the DQue bit isn't set in the changeable mask for the control mode page 6164 * anyway. This is just here as an example for how to implement a page 6165 * handler, and a placeholder in case we want to allow the user to turn 6166 * tagged queueing on and off. 6167 * 6168 * The D_SENSE bit handling is functional, however, and will turn 6169 * descriptor sense on and off for a given LUN. 6170 */ 6171 int 6172 ctl_control_page_handler(struct ctl_scsiio *ctsio, 6173 struct ctl_page_index *page_index, uint8_t *page_ptr) 6174 { 6175 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6176 struct ctl_lun *lun; 6177 struct ctl_softc *softc; 6178 int set_ua; 6179 uint32_t initidx; 6180 6181 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6182 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6183 set_ua = 0; 6184 6185 user_cp = (struct scsi_control_page *)page_ptr; 6186 current_cp = (struct scsi_control_page *) 6187 (page_index->page_data + (page_index->page_len * 6188 CTL_PAGE_CURRENT)); 6189 saved_cp = (struct scsi_control_page *) 6190 (page_index->page_data + (page_index->page_len * 6191 CTL_PAGE_SAVED)); 6192 6193 softc = control_softc; 6194 6195 mtx_lock(&lun->lun_lock); 6196 if (((current_cp->rlec & SCP_DSENSE) == 0) 6197 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6198 /* 6199 * Descriptor sense is currently turned off and the user 6200 * wants to turn it on. 6201 */ 6202 current_cp->rlec |= SCP_DSENSE; 6203 saved_cp->rlec |= SCP_DSENSE; 6204 lun->flags |= CTL_LUN_SENSE_DESC; 6205 set_ua = 1; 6206 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6207 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6208 /* 6209 * Descriptor sense is currently turned on, and the user 6210 * wants to turn it off. 6211 */ 6212 current_cp->rlec &= ~SCP_DSENSE; 6213 saved_cp->rlec &= ~SCP_DSENSE; 6214 lun->flags &= ~CTL_LUN_SENSE_DESC; 6215 set_ua = 1; 6216 } 6217 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6218 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6219 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6220 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6221 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6222 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6223 set_ua = 1; 6224 } 6225 if ((current_cp->eca_and_aen & SCP_SWP) != 6226 (user_cp->eca_and_aen & SCP_SWP)) { 6227 current_cp->eca_and_aen &= ~SCP_SWP; 6228 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6229 saved_cp->eca_and_aen &= ~SCP_SWP; 6230 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6231 set_ua = 1; 6232 } 6233 if (set_ua != 0) { 6234 int i; 6235 /* 6236 * Let other initiators know that the mode 6237 * parameters for this LUN have changed. 6238 */ 6239 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6240 if (i == initidx) 6241 continue; 6242 6243 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6244 } 6245 } 6246 mtx_unlock(&lun->lun_lock); 6247 6248 return (0); 6249 } 6250 6251 int 6252 ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6253 struct ctl_page_index *page_index, uint8_t *page_ptr) 6254 { 6255 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6256 struct ctl_lun *lun; 6257 int set_ua; 6258 uint32_t initidx; 6259 6260 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6261 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6262 set_ua = 0; 6263 6264 user_cp = (struct scsi_caching_page *)page_ptr; 6265 current_cp = (struct scsi_caching_page *) 6266 (page_index->page_data + (page_index->page_len * 6267 CTL_PAGE_CURRENT)); 6268 saved_cp = (struct scsi_caching_page *) 6269 (page_index->page_data + (page_index->page_len * 6270 CTL_PAGE_SAVED)); 6271 6272 mtx_lock(&lun->lun_lock); 6273 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6274 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6275 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6276 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6277 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6278 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6279 set_ua = 1; 6280 } 6281 if (set_ua != 0) { 6282 int i; 6283 /* 6284 * Let other initiators know that the mode 6285 * parameters for this LUN have changed. 6286 */ 6287 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6288 if (i == initidx) 6289 continue; 6290 6291 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6292 } 6293 } 6294 mtx_unlock(&lun->lun_lock); 6295 6296 return (0); 6297 } 6298 6299 int 6300 ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6301 struct ctl_page_index *page_index, uint8_t *page_ptr) 6302 { 6303 return (0); 6304 } 6305 6306 int 6307 ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6308 struct ctl_page_index *page_index, int pc) 6309 { 6310 struct copan_power_subpage *page; 6311 6312 page = (struct copan_power_subpage *)page_index->page_data + 6313 (page_index->page_len * pc); 6314 6315 switch (pc) { 6316 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6317 /* 6318 * We don't update the changable bits for this page. 6319 */ 6320 break; 6321 case SMS_PAGE_CTRL_CURRENT >> 6: 6322 case SMS_PAGE_CTRL_DEFAULT >> 6: 6323 case SMS_PAGE_CTRL_SAVED >> 6: 6324 #ifdef NEEDTOPORT 6325 ctl_update_power_subpage(page); 6326 #endif 6327 break; 6328 default: 6329 #ifdef NEEDTOPORT 6330 EPRINT(0, "Invalid PC %d!!", pc); 6331 #endif 6332 break; 6333 } 6334 return (0); 6335 } 6336 6337 6338 int 6339 ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6340 struct ctl_page_index *page_index, uint8_t *page_ptr) 6341 { 6342 struct copan_aps_subpage *user_sp; 6343 struct copan_aps_subpage *current_sp; 6344 union ctl_modepage_info *modepage_info; 6345 struct ctl_softc *softc; 6346 struct ctl_lun *lun; 6347 int retval; 6348 6349 retval = CTL_RETVAL_COMPLETE; 6350 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6351 (page_index->page_len * CTL_PAGE_CURRENT)); 6352 softc = control_softc; 6353 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6354 6355 user_sp = (struct copan_aps_subpage *)page_ptr; 6356 6357 modepage_info = (union ctl_modepage_info *) 6358 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6359 6360 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6361 modepage_info->header.subpage = page_index->subpage; 6362 modepage_info->aps.lock_active = user_sp->lock_active; 6363 6364 mtx_lock(&softc->ctl_lock); 6365 6366 /* 6367 * If there is a request to lock the LUN and another LUN is locked 6368 * this is an error. If the requested LUN is already locked ignore 6369 * the request. If no LUN is locked attempt to lock it. 6370 * if there is a request to unlock the LUN and the LUN is currently 6371 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6372 * if another LUN is locked or no LUN is locked. 6373 */ 6374 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6375 if (softc->aps_locked_lun == lun->lun) { 6376 /* 6377 * This LUN is already locked, so we're done. 6378 */ 6379 retval = CTL_RETVAL_COMPLETE; 6380 } else if (softc->aps_locked_lun == 0) { 6381 /* 6382 * No one has the lock, pass the request to the 6383 * backend. 6384 */ 6385 retval = lun->backend->config_write( 6386 (union ctl_io *)ctsio); 6387 } else { 6388 /* 6389 * Someone else has the lock, throw out the request. 6390 */ 6391 ctl_set_already_locked(ctsio); 6392 free(ctsio->kern_data_ptr, M_CTL); 6393 ctl_done((union ctl_io *)ctsio); 6394 6395 /* 6396 * Set the return value so that ctl_do_mode_select() 6397 * won't try to complete the command. We already 6398 * completed it here. 6399 */ 6400 retval = CTL_RETVAL_ERROR; 6401 } 6402 } else if (softc->aps_locked_lun == lun->lun) { 6403 /* 6404 * This LUN is locked, so pass the unlock request to the 6405 * backend. 6406 */ 6407 retval = lun->backend->config_write((union ctl_io *)ctsio); 6408 } 6409 mtx_unlock(&softc->ctl_lock); 6410 6411 return (retval); 6412 } 6413 6414 int 6415 ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6416 struct ctl_page_index *page_index, 6417 uint8_t *page_ptr) 6418 { 6419 uint8_t *c; 6420 int i; 6421 6422 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6423 ctl_time_io_secs = 6424 (c[0] << 8) | 6425 (c[1] << 0) | 6426 0; 6427 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6428 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6429 printf("page data:"); 6430 for (i=0; i<8; i++) 6431 printf(" %.2x",page_ptr[i]); 6432 printf("\n"); 6433 return (0); 6434 } 6435 6436 int 6437 ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6438 struct ctl_page_index *page_index, 6439 int pc) 6440 { 6441 struct copan_debugconf_subpage *page; 6442 6443 page = (struct copan_debugconf_subpage *)page_index->page_data + 6444 (page_index->page_len * pc); 6445 6446 switch (pc) { 6447 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6448 case SMS_PAGE_CTRL_DEFAULT >> 6: 6449 case SMS_PAGE_CTRL_SAVED >> 6: 6450 /* 6451 * We don't update the changable or default bits for this page. 6452 */ 6453 break; 6454 case SMS_PAGE_CTRL_CURRENT >> 6: 6455 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6456 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6457 break; 6458 default: 6459 #ifdef NEEDTOPORT 6460 EPRINT(0, "Invalid PC %d!!", pc); 6461 #endif /* NEEDTOPORT */ 6462 break; 6463 } 6464 return (0); 6465 } 6466 6467 6468 static int 6469 ctl_do_mode_select(union ctl_io *io) 6470 { 6471 struct scsi_mode_page_header *page_header; 6472 struct ctl_page_index *page_index; 6473 struct ctl_scsiio *ctsio; 6474 int control_dev, page_len; 6475 int page_len_offset, page_len_size; 6476 union ctl_modepage_info *modepage_info; 6477 struct ctl_lun *lun; 6478 int *len_left, *len_used; 6479 int retval, i; 6480 6481 ctsio = &io->scsiio; 6482 page_index = NULL; 6483 page_len = 0; 6484 retval = CTL_RETVAL_COMPLETE; 6485 6486 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6487 6488 if (lun->be_lun->lun_type != T_DIRECT) 6489 control_dev = 1; 6490 else 6491 control_dev = 0; 6492 6493 modepage_info = (union ctl_modepage_info *) 6494 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6495 len_left = &modepage_info->header.len_left; 6496 len_used = &modepage_info->header.len_used; 6497 6498 do_next_page: 6499 6500 page_header = (struct scsi_mode_page_header *) 6501 (ctsio->kern_data_ptr + *len_used); 6502 6503 if (*len_left == 0) { 6504 free(ctsio->kern_data_ptr, M_CTL); 6505 ctl_set_success(ctsio); 6506 ctl_done((union ctl_io *)ctsio); 6507 return (CTL_RETVAL_COMPLETE); 6508 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6509 6510 free(ctsio->kern_data_ptr, M_CTL); 6511 ctl_set_param_len_error(ctsio); 6512 ctl_done((union ctl_io *)ctsio); 6513 return (CTL_RETVAL_COMPLETE); 6514 6515 } else if ((page_header->page_code & SMPH_SPF) 6516 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6517 6518 free(ctsio->kern_data_ptr, M_CTL); 6519 ctl_set_param_len_error(ctsio); 6520 ctl_done((union ctl_io *)ctsio); 6521 return (CTL_RETVAL_COMPLETE); 6522 } 6523 6524 6525 /* 6526 * XXX KDM should we do something with the block descriptor? 6527 */ 6528 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6529 6530 if ((control_dev != 0) 6531 && (lun->mode_pages.index[i].page_flags & 6532 CTL_PAGE_FLAG_DISK_ONLY)) 6533 continue; 6534 6535 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6536 (page_header->page_code & SMPH_PC_MASK)) 6537 continue; 6538 6539 /* 6540 * If neither page has a subpage code, then we've got a 6541 * match. 6542 */ 6543 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6544 && ((page_header->page_code & SMPH_SPF) == 0)) { 6545 page_index = &lun->mode_pages.index[i]; 6546 page_len = page_header->page_length; 6547 break; 6548 } 6549 6550 /* 6551 * If both pages have subpages, then the subpage numbers 6552 * have to match. 6553 */ 6554 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6555 && (page_header->page_code & SMPH_SPF)) { 6556 struct scsi_mode_page_header_sp *sph; 6557 6558 sph = (struct scsi_mode_page_header_sp *)page_header; 6559 6560 if (lun->mode_pages.index[i].subpage == 6561 sph->subpage) { 6562 page_index = &lun->mode_pages.index[i]; 6563 page_len = scsi_2btoul(sph->page_length); 6564 break; 6565 } 6566 } 6567 } 6568 6569 /* 6570 * If we couldn't find the page, or if we don't have a mode select 6571 * handler for it, send back an error to the user. 6572 */ 6573 if ((page_index == NULL) 6574 || (page_index->select_handler == NULL)) { 6575 ctl_set_invalid_field(ctsio, 6576 /*sks_valid*/ 1, 6577 /*command*/ 0, 6578 /*field*/ *len_used, 6579 /*bit_valid*/ 0, 6580 /*bit*/ 0); 6581 free(ctsio->kern_data_ptr, M_CTL); 6582 ctl_done((union ctl_io *)ctsio); 6583 return (CTL_RETVAL_COMPLETE); 6584 } 6585 6586 if (page_index->page_code & SMPH_SPF) { 6587 page_len_offset = 2; 6588 page_len_size = 2; 6589 } else { 6590 page_len_size = 1; 6591 page_len_offset = 1; 6592 } 6593 6594 /* 6595 * If the length the initiator gives us isn't the one we specify in 6596 * the mode page header, or if they didn't specify enough data in 6597 * the CDB to avoid truncating this page, kick out the request. 6598 */ 6599 if ((page_len != (page_index->page_len - page_len_offset - 6600 page_len_size)) 6601 || (*len_left < page_index->page_len)) { 6602 6603 6604 ctl_set_invalid_field(ctsio, 6605 /*sks_valid*/ 1, 6606 /*command*/ 0, 6607 /*field*/ *len_used + page_len_offset, 6608 /*bit_valid*/ 0, 6609 /*bit*/ 0); 6610 free(ctsio->kern_data_ptr, M_CTL); 6611 ctl_done((union ctl_io *)ctsio); 6612 return (CTL_RETVAL_COMPLETE); 6613 } 6614 6615 /* 6616 * Run through the mode page, checking to make sure that the bits 6617 * the user changed are actually legal for him to change. 6618 */ 6619 for (i = 0; i < page_index->page_len; i++) { 6620 uint8_t *user_byte, *change_mask, *current_byte; 6621 int bad_bit; 6622 int j; 6623 6624 user_byte = (uint8_t *)page_header + i; 6625 change_mask = page_index->page_data + 6626 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6627 current_byte = page_index->page_data + 6628 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6629 6630 /* 6631 * Check to see whether the user set any bits in this byte 6632 * that he is not allowed to set. 6633 */ 6634 if ((*user_byte & ~(*change_mask)) == 6635 (*current_byte & ~(*change_mask))) 6636 continue; 6637 6638 /* 6639 * Go through bit by bit to determine which one is illegal. 6640 */ 6641 bad_bit = 0; 6642 for (j = 7; j >= 0; j--) { 6643 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6644 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6645 bad_bit = i; 6646 break; 6647 } 6648 } 6649 ctl_set_invalid_field(ctsio, 6650 /*sks_valid*/ 1, 6651 /*command*/ 0, 6652 /*field*/ *len_used + i, 6653 /*bit_valid*/ 1, 6654 /*bit*/ bad_bit); 6655 free(ctsio->kern_data_ptr, M_CTL); 6656 ctl_done((union ctl_io *)ctsio); 6657 return (CTL_RETVAL_COMPLETE); 6658 } 6659 6660 /* 6661 * Decrement these before we call the page handler, since we may 6662 * end up getting called back one way or another before the handler 6663 * returns to this context. 6664 */ 6665 *len_left -= page_index->page_len; 6666 *len_used += page_index->page_len; 6667 6668 retval = page_index->select_handler(ctsio, page_index, 6669 (uint8_t *)page_header); 6670 6671 /* 6672 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6673 * wait until this queued command completes to finish processing 6674 * the mode page. If it returns anything other than 6675 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6676 * already set the sense information, freed the data pointer, and 6677 * completed the io for us. 6678 */ 6679 if (retval != CTL_RETVAL_COMPLETE) 6680 goto bailout_no_done; 6681 6682 /* 6683 * If the initiator sent us more than one page, parse the next one. 6684 */ 6685 if (*len_left > 0) 6686 goto do_next_page; 6687 6688 ctl_set_success(ctsio); 6689 free(ctsio->kern_data_ptr, M_CTL); 6690 ctl_done((union ctl_io *)ctsio); 6691 6692 bailout_no_done: 6693 6694 return (CTL_RETVAL_COMPLETE); 6695 6696 } 6697 6698 int 6699 ctl_mode_select(struct ctl_scsiio *ctsio) 6700 { 6701 int param_len, pf, sp; 6702 int header_size, bd_len; 6703 int len_left, len_used; 6704 struct ctl_page_index *page_index; 6705 struct ctl_lun *lun; 6706 int control_dev, page_len; 6707 union ctl_modepage_info *modepage_info; 6708 int retval; 6709 6710 pf = 0; 6711 sp = 0; 6712 page_len = 0; 6713 len_used = 0; 6714 len_left = 0; 6715 retval = 0; 6716 bd_len = 0; 6717 page_index = NULL; 6718 6719 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6720 6721 if (lun->be_lun->lun_type != T_DIRECT) 6722 control_dev = 1; 6723 else 6724 control_dev = 0; 6725 6726 switch (ctsio->cdb[0]) { 6727 case MODE_SELECT_6: { 6728 struct scsi_mode_select_6 *cdb; 6729 6730 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6731 6732 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6733 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6734 6735 param_len = cdb->length; 6736 header_size = sizeof(struct scsi_mode_header_6); 6737 break; 6738 } 6739 case MODE_SELECT_10: { 6740 struct scsi_mode_select_10 *cdb; 6741 6742 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6743 6744 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6745 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6746 6747 param_len = scsi_2btoul(cdb->length); 6748 header_size = sizeof(struct scsi_mode_header_10); 6749 break; 6750 } 6751 default: 6752 ctl_set_invalid_opcode(ctsio); 6753 ctl_done((union ctl_io *)ctsio); 6754 return (CTL_RETVAL_COMPLETE); 6755 break; /* NOTREACHED */ 6756 } 6757 6758 /* 6759 * From SPC-3: 6760 * "A parameter list length of zero indicates that the Data-Out Buffer 6761 * shall be empty. This condition shall not be considered as an error." 6762 */ 6763 if (param_len == 0) { 6764 ctl_set_success(ctsio); 6765 ctl_done((union ctl_io *)ctsio); 6766 return (CTL_RETVAL_COMPLETE); 6767 } 6768 6769 /* 6770 * Since we'll hit this the first time through, prior to 6771 * allocation, we don't need to free a data buffer here. 6772 */ 6773 if (param_len < header_size) { 6774 ctl_set_param_len_error(ctsio); 6775 ctl_done((union ctl_io *)ctsio); 6776 return (CTL_RETVAL_COMPLETE); 6777 } 6778 6779 /* 6780 * Allocate the data buffer and grab the user's data. In theory, 6781 * we shouldn't have to sanity check the parameter list length here 6782 * because the maximum size is 64K. We should be able to malloc 6783 * that much without too many problems. 6784 */ 6785 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6786 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6787 ctsio->kern_data_len = param_len; 6788 ctsio->kern_total_len = param_len; 6789 ctsio->kern_data_resid = 0; 6790 ctsio->kern_rel_offset = 0; 6791 ctsio->kern_sg_entries = 0; 6792 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6793 ctsio->be_move_done = ctl_config_move_done; 6794 ctl_datamove((union ctl_io *)ctsio); 6795 6796 return (CTL_RETVAL_COMPLETE); 6797 } 6798 6799 switch (ctsio->cdb[0]) { 6800 case MODE_SELECT_6: { 6801 struct scsi_mode_header_6 *mh6; 6802 6803 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6804 bd_len = mh6->blk_desc_len; 6805 break; 6806 } 6807 case MODE_SELECT_10: { 6808 struct scsi_mode_header_10 *mh10; 6809 6810 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6811 bd_len = scsi_2btoul(mh10->blk_desc_len); 6812 break; 6813 } 6814 default: 6815 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6816 break; 6817 } 6818 6819 if (param_len < (header_size + bd_len)) { 6820 free(ctsio->kern_data_ptr, M_CTL); 6821 ctl_set_param_len_error(ctsio); 6822 ctl_done((union ctl_io *)ctsio); 6823 return (CTL_RETVAL_COMPLETE); 6824 } 6825 6826 /* 6827 * Set the IO_CONT flag, so that if this I/O gets passed to 6828 * ctl_config_write_done(), it'll get passed back to 6829 * ctl_do_mode_select() for further processing, or completion if 6830 * we're all done. 6831 */ 6832 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6833 ctsio->io_cont = ctl_do_mode_select; 6834 6835 modepage_info = (union ctl_modepage_info *) 6836 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6837 6838 memset(modepage_info, 0, sizeof(*modepage_info)); 6839 6840 len_left = param_len - header_size - bd_len; 6841 len_used = header_size + bd_len; 6842 6843 modepage_info->header.len_left = len_left; 6844 modepage_info->header.len_used = len_used; 6845 6846 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6847 } 6848 6849 int 6850 ctl_mode_sense(struct ctl_scsiio *ctsio) 6851 { 6852 struct ctl_lun *lun; 6853 int pc, page_code, dbd, llba, subpage; 6854 int alloc_len, page_len, header_len, total_len; 6855 struct scsi_mode_block_descr *block_desc; 6856 struct ctl_page_index *page_index; 6857 int control_dev; 6858 6859 dbd = 0; 6860 llba = 0; 6861 block_desc = NULL; 6862 page_index = NULL; 6863 6864 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6865 6866 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6867 6868 if (lun->be_lun->lun_type != T_DIRECT) 6869 control_dev = 1; 6870 else 6871 control_dev = 0; 6872 6873 if (lun->flags & CTL_LUN_PR_RESERVED) { 6874 uint32_t residx; 6875 6876 /* 6877 * XXX KDM need a lock here. 6878 */ 6879 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6880 if ((lun->res_type == SPR_TYPE_EX_AC 6881 && residx != lun->pr_res_idx) 6882 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6883 || lun->res_type == SPR_TYPE_EX_AC_AR) 6884 && lun->pr_keys[residx] == 0)) { 6885 ctl_set_reservation_conflict(ctsio); 6886 ctl_done((union ctl_io *)ctsio); 6887 return (CTL_RETVAL_COMPLETE); 6888 } 6889 } 6890 6891 switch (ctsio->cdb[0]) { 6892 case MODE_SENSE_6: { 6893 struct scsi_mode_sense_6 *cdb; 6894 6895 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6896 6897 header_len = sizeof(struct scsi_mode_hdr_6); 6898 if (cdb->byte2 & SMS_DBD) 6899 dbd = 1; 6900 else 6901 header_len += sizeof(struct scsi_mode_block_descr); 6902 6903 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6904 page_code = cdb->page & SMS_PAGE_CODE; 6905 subpage = cdb->subpage; 6906 alloc_len = cdb->length; 6907 break; 6908 } 6909 case MODE_SENSE_10: { 6910 struct scsi_mode_sense_10 *cdb; 6911 6912 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6913 6914 header_len = sizeof(struct scsi_mode_hdr_10); 6915 6916 if (cdb->byte2 & SMS_DBD) 6917 dbd = 1; 6918 else 6919 header_len += sizeof(struct scsi_mode_block_descr); 6920 if (cdb->byte2 & SMS10_LLBAA) 6921 llba = 1; 6922 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6923 page_code = cdb->page & SMS_PAGE_CODE; 6924 subpage = cdb->subpage; 6925 alloc_len = scsi_2btoul(cdb->length); 6926 break; 6927 } 6928 default: 6929 ctl_set_invalid_opcode(ctsio); 6930 ctl_done((union ctl_io *)ctsio); 6931 return (CTL_RETVAL_COMPLETE); 6932 break; /* NOTREACHED */ 6933 } 6934 6935 /* 6936 * We have to make a first pass through to calculate the size of 6937 * the pages that match the user's query. Then we allocate enough 6938 * memory to hold it, and actually copy the data into the buffer. 6939 */ 6940 switch (page_code) { 6941 case SMS_ALL_PAGES_PAGE: { 6942 int i; 6943 6944 page_len = 0; 6945 6946 /* 6947 * At the moment, values other than 0 and 0xff here are 6948 * reserved according to SPC-3. 6949 */ 6950 if ((subpage != SMS_SUBPAGE_PAGE_0) 6951 && (subpage != SMS_SUBPAGE_ALL)) { 6952 ctl_set_invalid_field(ctsio, 6953 /*sks_valid*/ 1, 6954 /*command*/ 1, 6955 /*field*/ 3, 6956 /*bit_valid*/ 0, 6957 /*bit*/ 0); 6958 ctl_done((union ctl_io *)ctsio); 6959 return (CTL_RETVAL_COMPLETE); 6960 } 6961 6962 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6963 if ((control_dev != 0) 6964 && (lun->mode_pages.index[i].page_flags & 6965 CTL_PAGE_FLAG_DISK_ONLY)) 6966 continue; 6967 6968 /* 6969 * We don't use this subpage if the user didn't 6970 * request all subpages. 6971 */ 6972 if ((lun->mode_pages.index[i].subpage != 0) 6973 && (subpage == SMS_SUBPAGE_PAGE_0)) 6974 continue; 6975 6976 #if 0 6977 printf("found page %#x len %d\n", 6978 lun->mode_pages.index[i].page_code & 6979 SMPH_PC_MASK, 6980 lun->mode_pages.index[i].page_len); 6981 #endif 6982 page_len += lun->mode_pages.index[i].page_len; 6983 } 6984 break; 6985 } 6986 default: { 6987 int i; 6988 6989 page_len = 0; 6990 6991 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6992 /* Look for the right page code */ 6993 if ((lun->mode_pages.index[i].page_code & 6994 SMPH_PC_MASK) != page_code) 6995 continue; 6996 6997 /* Look for the right subpage or the subpage wildcard*/ 6998 if ((lun->mode_pages.index[i].subpage != subpage) 6999 && (subpage != SMS_SUBPAGE_ALL)) 7000 continue; 7001 7002 /* Make sure the page is supported for this dev type */ 7003 if ((control_dev != 0) 7004 && (lun->mode_pages.index[i].page_flags & 7005 CTL_PAGE_FLAG_DISK_ONLY)) 7006 continue; 7007 7008 #if 0 7009 printf("found page %#x len %d\n", 7010 lun->mode_pages.index[i].page_code & 7011 SMPH_PC_MASK, 7012 lun->mode_pages.index[i].page_len); 7013 #endif 7014 7015 page_len += lun->mode_pages.index[i].page_len; 7016 } 7017 7018 if (page_len == 0) { 7019 ctl_set_invalid_field(ctsio, 7020 /*sks_valid*/ 1, 7021 /*command*/ 1, 7022 /*field*/ 2, 7023 /*bit_valid*/ 1, 7024 /*bit*/ 5); 7025 ctl_done((union ctl_io *)ctsio); 7026 return (CTL_RETVAL_COMPLETE); 7027 } 7028 break; 7029 } 7030 } 7031 7032 total_len = header_len + page_len; 7033 #if 0 7034 printf("header_len = %d, page_len = %d, total_len = %d\n", 7035 header_len, page_len, total_len); 7036 #endif 7037 7038 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7039 ctsio->kern_sg_entries = 0; 7040 ctsio->kern_data_resid = 0; 7041 ctsio->kern_rel_offset = 0; 7042 if (total_len < alloc_len) { 7043 ctsio->residual = alloc_len - total_len; 7044 ctsio->kern_data_len = total_len; 7045 ctsio->kern_total_len = total_len; 7046 } else { 7047 ctsio->residual = 0; 7048 ctsio->kern_data_len = alloc_len; 7049 ctsio->kern_total_len = alloc_len; 7050 } 7051 7052 switch (ctsio->cdb[0]) { 7053 case MODE_SENSE_6: { 7054 struct scsi_mode_hdr_6 *header; 7055 7056 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7057 7058 header->datalen = ctl_min(total_len - 1, 254); 7059 if (control_dev == 0) { 7060 header->dev_specific = 0x10; /* DPOFUA */ 7061 if ((lun->flags & CTL_LUN_READONLY) || 7062 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7063 .eca_and_aen & SCP_SWP) != 0) 7064 header->dev_specific |= 0x80; /* WP */ 7065 } 7066 if (dbd) 7067 header->block_descr_len = 0; 7068 else 7069 header->block_descr_len = 7070 sizeof(struct scsi_mode_block_descr); 7071 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7072 break; 7073 } 7074 case MODE_SENSE_10: { 7075 struct scsi_mode_hdr_10 *header; 7076 int datalen; 7077 7078 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7079 7080 datalen = ctl_min(total_len - 2, 65533); 7081 scsi_ulto2b(datalen, header->datalen); 7082 if (control_dev == 0) { 7083 header->dev_specific = 0x10; /* DPOFUA */ 7084 if ((lun->flags & CTL_LUN_READONLY) || 7085 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7086 .eca_and_aen & SCP_SWP) != 0) 7087 header->dev_specific |= 0x80; /* WP */ 7088 } 7089 if (dbd) 7090 scsi_ulto2b(0, header->block_descr_len); 7091 else 7092 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7093 header->block_descr_len); 7094 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7095 break; 7096 } 7097 default: 7098 panic("invalid CDB type %#x", ctsio->cdb[0]); 7099 break; /* NOTREACHED */ 7100 } 7101 7102 /* 7103 * If we've got a disk, use its blocksize in the block 7104 * descriptor. Otherwise, just set it to 0. 7105 */ 7106 if (dbd == 0) { 7107 if (control_dev == 0) 7108 scsi_ulto3b(lun->be_lun->blocksize, 7109 block_desc->block_len); 7110 else 7111 scsi_ulto3b(0, block_desc->block_len); 7112 } 7113 7114 switch (page_code) { 7115 case SMS_ALL_PAGES_PAGE: { 7116 int i, data_used; 7117 7118 data_used = header_len; 7119 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7120 struct ctl_page_index *page_index; 7121 7122 page_index = &lun->mode_pages.index[i]; 7123 7124 if ((control_dev != 0) 7125 && (page_index->page_flags & 7126 CTL_PAGE_FLAG_DISK_ONLY)) 7127 continue; 7128 7129 /* 7130 * We don't use this subpage if the user didn't 7131 * request all subpages. We already checked (above) 7132 * to make sure the user only specified a subpage 7133 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7134 */ 7135 if ((page_index->subpage != 0) 7136 && (subpage == SMS_SUBPAGE_PAGE_0)) 7137 continue; 7138 7139 /* 7140 * Call the handler, if it exists, to update the 7141 * page to the latest values. 7142 */ 7143 if (page_index->sense_handler != NULL) 7144 page_index->sense_handler(ctsio, page_index,pc); 7145 7146 memcpy(ctsio->kern_data_ptr + data_used, 7147 page_index->page_data + 7148 (page_index->page_len * pc), 7149 page_index->page_len); 7150 data_used += page_index->page_len; 7151 } 7152 break; 7153 } 7154 default: { 7155 int i, data_used; 7156 7157 data_used = header_len; 7158 7159 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7160 struct ctl_page_index *page_index; 7161 7162 page_index = &lun->mode_pages.index[i]; 7163 7164 /* Look for the right page code */ 7165 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7166 continue; 7167 7168 /* Look for the right subpage or the subpage wildcard*/ 7169 if ((page_index->subpage != subpage) 7170 && (subpage != SMS_SUBPAGE_ALL)) 7171 continue; 7172 7173 /* Make sure the page is supported for this dev type */ 7174 if ((control_dev != 0) 7175 && (page_index->page_flags & 7176 CTL_PAGE_FLAG_DISK_ONLY)) 7177 continue; 7178 7179 /* 7180 * Call the handler, if it exists, to update the 7181 * page to the latest values. 7182 */ 7183 if (page_index->sense_handler != NULL) 7184 page_index->sense_handler(ctsio, page_index,pc); 7185 7186 memcpy(ctsio->kern_data_ptr + data_used, 7187 page_index->page_data + 7188 (page_index->page_len * pc), 7189 page_index->page_len); 7190 data_used += page_index->page_len; 7191 } 7192 break; 7193 } 7194 } 7195 7196 ctsio->scsi_status = SCSI_STATUS_OK; 7197 7198 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7199 ctsio->be_move_done = ctl_config_move_done; 7200 ctl_datamove((union ctl_io *)ctsio); 7201 7202 return (CTL_RETVAL_COMPLETE); 7203 } 7204 7205 int 7206 ctl_read_capacity(struct ctl_scsiio *ctsio) 7207 { 7208 struct scsi_read_capacity *cdb; 7209 struct scsi_read_capacity_data *data; 7210 struct ctl_lun *lun; 7211 uint32_t lba; 7212 7213 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7214 7215 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7216 7217 lba = scsi_4btoul(cdb->addr); 7218 if (((cdb->pmi & SRC_PMI) == 0) 7219 && (lba != 0)) { 7220 ctl_set_invalid_field(/*ctsio*/ ctsio, 7221 /*sks_valid*/ 1, 7222 /*command*/ 1, 7223 /*field*/ 2, 7224 /*bit_valid*/ 0, 7225 /*bit*/ 0); 7226 ctl_done((union ctl_io *)ctsio); 7227 return (CTL_RETVAL_COMPLETE); 7228 } 7229 7230 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7231 7232 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7233 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7234 ctsio->residual = 0; 7235 ctsio->kern_data_len = sizeof(*data); 7236 ctsio->kern_total_len = sizeof(*data); 7237 ctsio->kern_data_resid = 0; 7238 ctsio->kern_rel_offset = 0; 7239 ctsio->kern_sg_entries = 0; 7240 7241 /* 7242 * If the maximum LBA is greater than 0xfffffffe, the user must 7243 * issue a SERVICE ACTION IN (16) command, with the read capacity 7244 * serivce action set. 7245 */ 7246 if (lun->be_lun->maxlba > 0xfffffffe) 7247 scsi_ulto4b(0xffffffff, data->addr); 7248 else 7249 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7250 7251 /* 7252 * XXX KDM this may not be 512 bytes... 7253 */ 7254 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7255 7256 ctsio->scsi_status = SCSI_STATUS_OK; 7257 7258 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7259 ctsio->be_move_done = ctl_config_move_done; 7260 ctl_datamove((union ctl_io *)ctsio); 7261 7262 return (CTL_RETVAL_COMPLETE); 7263 } 7264 7265 int 7266 ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7267 { 7268 struct scsi_read_capacity_16 *cdb; 7269 struct scsi_read_capacity_data_long *data; 7270 struct ctl_lun *lun; 7271 uint64_t lba; 7272 uint32_t alloc_len; 7273 7274 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7275 7276 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7277 7278 alloc_len = scsi_4btoul(cdb->alloc_len); 7279 lba = scsi_8btou64(cdb->addr); 7280 7281 if ((cdb->reladr & SRC16_PMI) 7282 && (lba != 0)) { 7283 ctl_set_invalid_field(/*ctsio*/ ctsio, 7284 /*sks_valid*/ 1, 7285 /*command*/ 1, 7286 /*field*/ 2, 7287 /*bit_valid*/ 0, 7288 /*bit*/ 0); 7289 ctl_done((union ctl_io *)ctsio); 7290 return (CTL_RETVAL_COMPLETE); 7291 } 7292 7293 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7294 7295 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7296 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7297 7298 if (sizeof(*data) < alloc_len) { 7299 ctsio->residual = alloc_len - sizeof(*data); 7300 ctsio->kern_data_len = sizeof(*data); 7301 ctsio->kern_total_len = sizeof(*data); 7302 } else { 7303 ctsio->residual = 0; 7304 ctsio->kern_data_len = alloc_len; 7305 ctsio->kern_total_len = alloc_len; 7306 } 7307 ctsio->kern_data_resid = 0; 7308 ctsio->kern_rel_offset = 0; 7309 ctsio->kern_sg_entries = 0; 7310 7311 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7312 /* XXX KDM this may not be 512 bytes... */ 7313 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7314 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7315 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7316 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7317 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7318 7319 ctsio->scsi_status = SCSI_STATUS_OK; 7320 7321 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7322 ctsio->be_move_done = ctl_config_move_done; 7323 ctl_datamove((union ctl_io *)ctsio); 7324 7325 return (CTL_RETVAL_COMPLETE); 7326 } 7327 7328 int 7329 ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7330 { 7331 struct scsi_maintenance_in *cdb; 7332 int retval; 7333 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7334 int num_target_port_groups, num_target_ports, single; 7335 struct ctl_lun *lun; 7336 struct ctl_softc *softc; 7337 struct ctl_port *port; 7338 struct scsi_target_group_data *rtg_ptr; 7339 struct scsi_target_group_data_extended *rtg_ext_ptr; 7340 struct scsi_target_port_group_descriptor *tpg_desc; 7341 7342 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7343 7344 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7345 softc = control_softc; 7346 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7347 7348 retval = CTL_RETVAL_COMPLETE; 7349 7350 switch (cdb->byte2 & STG_PDF_MASK) { 7351 case STG_PDF_LENGTH: 7352 ext = 0; 7353 break; 7354 case STG_PDF_EXTENDED: 7355 ext = 1; 7356 break; 7357 default: 7358 ctl_set_invalid_field(/*ctsio*/ ctsio, 7359 /*sks_valid*/ 1, 7360 /*command*/ 1, 7361 /*field*/ 2, 7362 /*bit_valid*/ 1, 7363 /*bit*/ 5); 7364 ctl_done((union ctl_io *)ctsio); 7365 return(retval); 7366 } 7367 7368 single = ctl_is_single; 7369 if (single) 7370 num_target_port_groups = 1; 7371 else 7372 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7373 num_target_ports = 0; 7374 mtx_lock(&softc->ctl_lock); 7375 STAILQ_FOREACH(port, &softc->port_list, links) { 7376 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7377 continue; 7378 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7379 continue; 7380 num_target_ports++; 7381 } 7382 mtx_unlock(&softc->ctl_lock); 7383 7384 if (ext) 7385 total_len = sizeof(struct scsi_target_group_data_extended); 7386 else 7387 total_len = sizeof(struct scsi_target_group_data); 7388 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7389 num_target_port_groups + 7390 sizeof(struct scsi_target_port_descriptor) * 7391 num_target_ports * num_target_port_groups; 7392 7393 alloc_len = scsi_4btoul(cdb->length); 7394 7395 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7396 7397 ctsio->kern_sg_entries = 0; 7398 7399 if (total_len < alloc_len) { 7400 ctsio->residual = alloc_len - total_len; 7401 ctsio->kern_data_len = total_len; 7402 ctsio->kern_total_len = total_len; 7403 } else { 7404 ctsio->residual = 0; 7405 ctsio->kern_data_len = alloc_len; 7406 ctsio->kern_total_len = alloc_len; 7407 } 7408 ctsio->kern_data_resid = 0; 7409 ctsio->kern_rel_offset = 0; 7410 7411 if (ext) { 7412 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7413 ctsio->kern_data_ptr; 7414 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7415 rtg_ext_ptr->format_type = 0x10; 7416 rtg_ext_ptr->implicit_transition_time = 0; 7417 tpg_desc = &rtg_ext_ptr->groups[0]; 7418 } else { 7419 rtg_ptr = (struct scsi_target_group_data *) 7420 ctsio->kern_data_ptr; 7421 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7422 tpg_desc = &rtg_ptr->groups[0]; 7423 } 7424 7425 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7426 mtx_lock(&softc->ctl_lock); 7427 for (g = 0; g < num_target_port_groups; g++) { 7428 if (g == pg) 7429 tpg_desc->pref_state = TPG_PRIMARY | 7430 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7431 else 7432 tpg_desc->pref_state = 7433 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7434 tpg_desc->support = TPG_AO_SUP; 7435 if (!single) 7436 tpg_desc->support |= TPG_AN_SUP; 7437 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7438 tpg_desc->status = TPG_IMPLICIT; 7439 pc = 0; 7440 STAILQ_FOREACH(port, &softc->port_list, links) { 7441 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7442 continue; 7443 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7444 CTL_MAX_LUNS) 7445 continue; 7446 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7447 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7448 relative_target_port_identifier); 7449 pc++; 7450 } 7451 tpg_desc->target_port_count = pc; 7452 tpg_desc = (struct scsi_target_port_group_descriptor *) 7453 &tpg_desc->descriptors[pc]; 7454 } 7455 mtx_unlock(&softc->ctl_lock); 7456 7457 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7458 ctsio->be_move_done = ctl_config_move_done; 7459 7460 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7461 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7462 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7463 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7464 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7465 7466 ctl_datamove((union ctl_io *)ctsio); 7467 return(retval); 7468 } 7469 7470 int 7471 ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7472 { 7473 struct ctl_lun *lun; 7474 struct scsi_report_supported_opcodes *cdb; 7475 const struct ctl_cmd_entry *entry, *sentry; 7476 struct scsi_report_supported_opcodes_all *all; 7477 struct scsi_report_supported_opcodes_descr *descr; 7478 struct scsi_report_supported_opcodes_one *one; 7479 int retval; 7480 int alloc_len, total_len; 7481 int opcode, service_action, i, j, num; 7482 7483 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7484 7485 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7486 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7487 7488 retval = CTL_RETVAL_COMPLETE; 7489 7490 opcode = cdb->requested_opcode; 7491 service_action = scsi_2btoul(cdb->requested_service_action); 7492 switch (cdb->options & RSO_OPTIONS_MASK) { 7493 case RSO_OPTIONS_ALL: 7494 num = 0; 7495 for (i = 0; i < 256; i++) { 7496 entry = &ctl_cmd_table[i]; 7497 if (entry->flags & CTL_CMD_FLAG_SA5) { 7498 for (j = 0; j < 32; j++) { 7499 sentry = &((const struct ctl_cmd_entry *) 7500 entry->execute)[j]; 7501 if (ctl_cmd_applicable( 7502 lun->be_lun->lun_type, sentry)) 7503 num++; 7504 } 7505 } else { 7506 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7507 entry)) 7508 num++; 7509 } 7510 } 7511 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7512 num * sizeof(struct scsi_report_supported_opcodes_descr); 7513 break; 7514 case RSO_OPTIONS_OC: 7515 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7516 ctl_set_invalid_field(/*ctsio*/ ctsio, 7517 /*sks_valid*/ 1, 7518 /*command*/ 1, 7519 /*field*/ 2, 7520 /*bit_valid*/ 1, 7521 /*bit*/ 2); 7522 ctl_done((union ctl_io *)ctsio); 7523 return (CTL_RETVAL_COMPLETE); 7524 } 7525 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7526 break; 7527 case RSO_OPTIONS_OC_SA: 7528 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7529 service_action >= 32) { 7530 ctl_set_invalid_field(/*ctsio*/ ctsio, 7531 /*sks_valid*/ 1, 7532 /*command*/ 1, 7533 /*field*/ 2, 7534 /*bit_valid*/ 1, 7535 /*bit*/ 2); 7536 ctl_done((union ctl_io *)ctsio); 7537 return (CTL_RETVAL_COMPLETE); 7538 } 7539 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7540 break; 7541 default: 7542 ctl_set_invalid_field(/*ctsio*/ ctsio, 7543 /*sks_valid*/ 1, 7544 /*command*/ 1, 7545 /*field*/ 2, 7546 /*bit_valid*/ 1, 7547 /*bit*/ 2); 7548 ctl_done((union ctl_io *)ctsio); 7549 return (CTL_RETVAL_COMPLETE); 7550 } 7551 7552 alloc_len = scsi_4btoul(cdb->length); 7553 7554 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7555 7556 ctsio->kern_sg_entries = 0; 7557 7558 if (total_len < alloc_len) { 7559 ctsio->residual = alloc_len - total_len; 7560 ctsio->kern_data_len = total_len; 7561 ctsio->kern_total_len = total_len; 7562 } else { 7563 ctsio->residual = 0; 7564 ctsio->kern_data_len = alloc_len; 7565 ctsio->kern_total_len = alloc_len; 7566 } 7567 ctsio->kern_data_resid = 0; 7568 ctsio->kern_rel_offset = 0; 7569 7570 switch (cdb->options & RSO_OPTIONS_MASK) { 7571 case RSO_OPTIONS_ALL: 7572 all = (struct scsi_report_supported_opcodes_all *) 7573 ctsio->kern_data_ptr; 7574 num = 0; 7575 for (i = 0; i < 256; i++) { 7576 entry = &ctl_cmd_table[i]; 7577 if (entry->flags & CTL_CMD_FLAG_SA5) { 7578 for (j = 0; j < 32; j++) { 7579 sentry = &((const struct ctl_cmd_entry *) 7580 entry->execute)[j]; 7581 if (!ctl_cmd_applicable( 7582 lun->be_lun->lun_type, sentry)) 7583 continue; 7584 descr = &all->descr[num++]; 7585 descr->opcode = i; 7586 scsi_ulto2b(j, descr->service_action); 7587 descr->flags = RSO_SERVACTV; 7588 scsi_ulto2b(sentry->length, 7589 descr->cdb_length); 7590 } 7591 } else { 7592 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7593 entry)) 7594 continue; 7595 descr = &all->descr[num++]; 7596 descr->opcode = i; 7597 scsi_ulto2b(0, descr->service_action); 7598 descr->flags = 0; 7599 scsi_ulto2b(entry->length, descr->cdb_length); 7600 } 7601 } 7602 scsi_ulto4b( 7603 num * sizeof(struct scsi_report_supported_opcodes_descr), 7604 all->length); 7605 break; 7606 case RSO_OPTIONS_OC: 7607 one = (struct scsi_report_supported_opcodes_one *) 7608 ctsio->kern_data_ptr; 7609 entry = &ctl_cmd_table[opcode]; 7610 goto fill_one; 7611 case RSO_OPTIONS_OC_SA: 7612 one = (struct scsi_report_supported_opcodes_one *) 7613 ctsio->kern_data_ptr; 7614 entry = &ctl_cmd_table[opcode]; 7615 entry = &((const struct ctl_cmd_entry *) 7616 entry->execute)[service_action]; 7617 fill_one: 7618 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7619 one->support = 3; 7620 scsi_ulto2b(entry->length, one->cdb_length); 7621 one->cdb_usage[0] = opcode; 7622 memcpy(&one->cdb_usage[1], entry->usage, 7623 entry->length - 1); 7624 } else 7625 one->support = 1; 7626 break; 7627 } 7628 7629 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7630 ctsio->be_move_done = ctl_config_move_done; 7631 7632 ctl_datamove((union ctl_io *)ctsio); 7633 return(retval); 7634 } 7635 7636 int 7637 ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7638 { 7639 struct ctl_lun *lun; 7640 struct scsi_report_supported_tmf *cdb; 7641 struct scsi_report_supported_tmf_data *data; 7642 int retval; 7643 int alloc_len, total_len; 7644 7645 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7646 7647 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7648 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7649 7650 retval = CTL_RETVAL_COMPLETE; 7651 7652 total_len = sizeof(struct scsi_report_supported_tmf_data); 7653 alloc_len = scsi_4btoul(cdb->length); 7654 7655 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7656 7657 ctsio->kern_sg_entries = 0; 7658 7659 if (total_len < alloc_len) { 7660 ctsio->residual = alloc_len - total_len; 7661 ctsio->kern_data_len = total_len; 7662 ctsio->kern_total_len = total_len; 7663 } else { 7664 ctsio->residual = 0; 7665 ctsio->kern_data_len = alloc_len; 7666 ctsio->kern_total_len = alloc_len; 7667 } 7668 ctsio->kern_data_resid = 0; 7669 ctsio->kern_rel_offset = 0; 7670 7671 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7672 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7673 data->byte2 |= RST_ITNRS; 7674 7675 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7676 ctsio->be_move_done = ctl_config_move_done; 7677 7678 ctl_datamove((union ctl_io *)ctsio); 7679 return (retval); 7680 } 7681 7682 int 7683 ctl_report_timestamp(struct ctl_scsiio *ctsio) 7684 { 7685 struct ctl_lun *lun; 7686 struct scsi_report_timestamp *cdb; 7687 struct scsi_report_timestamp_data *data; 7688 struct timeval tv; 7689 int64_t timestamp; 7690 int retval; 7691 int alloc_len, total_len; 7692 7693 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7694 7695 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7696 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7697 7698 retval = CTL_RETVAL_COMPLETE; 7699 7700 total_len = sizeof(struct scsi_report_timestamp_data); 7701 alloc_len = scsi_4btoul(cdb->length); 7702 7703 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7704 7705 ctsio->kern_sg_entries = 0; 7706 7707 if (total_len < alloc_len) { 7708 ctsio->residual = alloc_len - total_len; 7709 ctsio->kern_data_len = total_len; 7710 ctsio->kern_total_len = total_len; 7711 } else { 7712 ctsio->residual = 0; 7713 ctsio->kern_data_len = alloc_len; 7714 ctsio->kern_total_len = alloc_len; 7715 } 7716 ctsio->kern_data_resid = 0; 7717 ctsio->kern_rel_offset = 0; 7718 7719 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7720 scsi_ulto2b(sizeof(*data) - 2, data->length); 7721 data->origin = RTS_ORIG_OUTSIDE; 7722 getmicrotime(&tv); 7723 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7724 scsi_ulto4b(timestamp >> 16, data->timestamp); 7725 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7726 7727 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7728 ctsio->be_move_done = ctl_config_move_done; 7729 7730 ctl_datamove((union ctl_io *)ctsio); 7731 return (retval); 7732 } 7733 7734 int 7735 ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7736 { 7737 struct scsi_per_res_in *cdb; 7738 int alloc_len, total_len = 0; 7739 /* struct scsi_per_res_in_rsrv in_data; */ 7740 struct ctl_lun *lun; 7741 struct ctl_softc *softc; 7742 7743 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7744 7745 softc = control_softc; 7746 7747 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7748 7749 alloc_len = scsi_2btoul(cdb->length); 7750 7751 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7752 7753 retry: 7754 mtx_lock(&lun->lun_lock); 7755 switch (cdb->action) { 7756 case SPRI_RK: /* read keys */ 7757 total_len = sizeof(struct scsi_per_res_in_keys) + 7758 lun->pr_key_count * 7759 sizeof(struct scsi_per_res_key); 7760 break; 7761 case SPRI_RR: /* read reservation */ 7762 if (lun->flags & CTL_LUN_PR_RESERVED) 7763 total_len = sizeof(struct scsi_per_res_in_rsrv); 7764 else 7765 total_len = sizeof(struct scsi_per_res_in_header); 7766 break; 7767 case SPRI_RC: /* report capabilities */ 7768 total_len = sizeof(struct scsi_per_res_cap); 7769 break; 7770 case SPRI_RS: /* read full status */ 7771 total_len = sizeof(struct scsi_per_res_in_header) + 7772 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7773 lun->pr_key_count; 7774 break; 7775 default: 7776 panic("Invalid PR type %x", cdb->action); 7777 } 7778 mtx_unlock(&lun->lun_lock); 7779 7780 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7781 7782 if (total_len < alloc_len) { 7783 ctsio->residual = alloc_len - total_len; 7784 ctsio->kern_data_len = total_len; 7785 ctsio->kern_total_len = total_len; 7786 } else { 7787 ctsio->residual = 0; 7788 ctsio->kern_data_len = alloc_len; 7789 ctsio->kern_total_len = alloc_len; 7790 } 7791 7792 ctsio->kern_data_resid = 0; 7793 ctsio->kern_rel_offset = 0; 7794 ctsio->kern_sg_entries = 0; 7795 7796 mtx_lock(&lun->lun_lock); 7797 switch (cdb->action) { 7798 case SPRI_RK: { // read keys 7799 struct scsi_per_res_in_keys *res_keys; 7800 int i, key_count; 7801 7802 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7803 7804 /* 7805 * We had to drop the lock to allocate our buffer, which 7806 * leaves time for someone to come in with another 7807 * persistent reservation. (That is unlikely, though, 7808 * since this should be the only persistent reservation 7809 * command active right now.) 7810 */ 7811 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7812 (lun->pr_key_count * 7813 sizeof(struct scsi_per_res_key)))){ 7814 mtx_unlock(&lun->lun_lock); 7815 free(ctsio->kern_data_ptr, M_CTL); 7816 printf("%s: reservation length changed, retrying\n", 7817 __func__); 7818 goto retry; 7819 } 7820 7821 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7822 7823 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7824 lun->pr_key_count, res_keys->header.length); 7825 7826 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7827 if (lun->pr_keys[i] == 0) 7828 continue; 7829 7830 /* 7831 * We used lun->pr_key_count to calculate the 7832 * size to allocate. If it turns out the number of 7833 * initiators with the registered flag set is 7834 * larger than that (i.e. they haven't been kept in 7835 * sync), we've got a problem. 7836 */ 7837 if (key_count >= lun->pr_key_count) { 7838 #ifdef NEEDTOPORT 7839 csevent_log(CSC_CTL | CSC_SHELF_SW | 7840 CTL_PR_ERROR, 7841 csevent_LogType_Fault, 7842 csevent_AlertLevel_Yellow, 7843 csevent_FRU_ShelfController, 7844 csevent_FRU_Firmware, 7845 csevent_FRU_Unknown, 7846 "registered keys %d >= key " 7847 "count %d", key_count, 7848 lun->pr_key_count); 7849 #endif 7850 key_count++; 7851 continue; 7852 } 7853 scsi_u64to8b(lun->pr_keys[i], 7854 res_keys->keys[key_count].key); 7855 key_count++; 7856 } 7857 break; 7858 } 7859 case SPRI_RR: { // read reservation 7860 struct scsi_per_res_in_rsrv *res; 7861 int tmp_len, header_only; 7862 7863 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7864 7865 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7866 7867 if (lun->flags & CTL_LUN_PR_RESERVED) 7868 { 7869 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7870 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7871 res->header.length); 7872 header_only = 0; 7873 } else { 7874 tmp_len = sizeof(struct scsi_per_res_in_header); 7875 scsi_ulto4b(0, res->header.length); 7876 header_only = 1; 7877 } 7878 7879 /* 7880 * We had to drop the lock to allocate our buffer, which 7881 * leaves time for someone to come in with another 7882 * persistent reservation. (That is unlikely, though, 7883 * since this should be the only persistent reservation 7884 * command active right now.) 7885 */ 7886 if (tmp_len != total_len) { 7887 mtx_unlock(&lun->lun_lock); 7888 free(ctsio->kern_data_ptr, M_CTL); 7889 printf("%s: reservation status changed, retrying\n", 7890 __func__); 7891 goto retry; 7892 } 7893 7894 /* 7895 * No reservation held, so we're done. 7896 */ 7897 if (header_only != 0) 7898 break; 7899 7900 /* 7901 * If the registration is an All Registrants type, the key 7902 * is 0, since it doesn't really matter. 7903 */ 7904 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7905 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 7906 res->data.reservation); 7907 } 7908 res->data.scopetype = lun->res_type; 7909 break; 7910 } 7911 case SPRI_RC: //report capabilities 7912 { 7913 struct scsi_per_res_cap *res_cap; 7914 uint16_t type_mask; 7915 7916 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7917 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7918 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7919 type_mask = SPRI_TM_WR_EX_AR | 7920 SPRI_TM_EX_AC_RO | 7921 SPRI_TM_WR_EX_RO | 7922 SPRI_TM_EX_AC | 7923 SPRI_TM_WR_EX | 7924 SPRI_TM_EX_AC_AR; 7925 scsi_ulto2b(type_mask, res_cap->type_mask); 7926 break; 7927 } 7928 case SPRI_RS: { // read full status 7929 struct scsi_per_res_in_full *res_status; 7930 struct scsi_per_res_in_full_desc *res_desc; 7931 struct ctl_port *port; 7932 int i, len; 7933 7934 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7935 7936 /* 7937 * We had to drop the lock to allocate our buffer, which 7938 * leaves time for someone to come in with another 7939 * persistent reservation. (That is unlikely, though, 7940 * since this should be the only persistent reservation 7941 * command active right now.) 7942 */ 7943 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7944 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7945 lun->pr_key_count)){ 7946 mtx_unlock(&lun->lun_lock); 7947 free(ctsio->kern_data_ptr, M_CTL); 7948 printf("%s: reservation length changed, retrying\n", 7949 __func__); 7950 goto retry; 7951 } 7952 7953 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7954 7955 res_desc = &res_status->desc[0]; 7956 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7957 if (lun->pr_keys[i] == 0) 7958 continue; 7959 7960 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 7961 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7962 (lun->pr_res_idx == i || 7963 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7964 res_desc->flags = SPRI_FULL_R_HOLDER; 7965 res_desc->scopetype = lun->res_type; 7966 } 7967 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7968 res_desc->rel_trgt_port_id); 7969 len = 0; 7970 port = softc->ctl_ports[ 7971 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7972 if (port != NULL) 7973 len = ctl_create_iid(port, 7974 i % CTL_MAX_INIT_PER_PORT, 7975 res_desc->transport_id); 7976 scsi_ulto4b(len, res_desc->additional_length); 7977 res_desc = (struct scsi_per_res_in_full_desc *) 7978 &res_desc->transport_id[len]; 7979 } 7980 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7981 res_status->header.length); 7982 break; 7983 } 7984 default: 7985 /* 7986 * This is a bug, because we just checked for this above, 7987 * and should have returned an error. 7988 */ 7989 panic("Invalid PR type %x", cdb->action); 7990 break; /* NOTREACHED */ 7991 } 7992 mtx_unlock(&lun->lun_lock); 7993 7994 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7995 ctsio->be_move_done = ctl_config_move_done; 7996 7997 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7998 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7999 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8000 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8001 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8002 8003 ctl_datamove((union ctl_io *)ctsio); 8004 8005 return (CTL_RETVAL_COMPLETE); 8006 } 8007 8008 /* 8009 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8010 * it should return. 8011 */ 8012 static int 8013 ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8014 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8015 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8016 struct scsi_per_res_out_parms* param) 8017 { 8018 union ctl_ha_msg persis_io; 8019 int retval, i; 8020 int isc_retval; 8021 8022 retval = 0; 8023 8024 mtx_lock(&lun->lun_lock); 8025 if (sa_res_key == 0) { 8026 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8027 /* validate scope and type */ 8028 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8029 SPR_LU_SCOPE) { 8030 mtx_unlock(&lun->lun_lock); 8031 ctl_set_invalid_field(/*ctsio*/ ctsio, 8032 /*sks_valid*/ 1, 8033 /*command*/ 1, 8034 /*field*/ 2, 8035 /*bit_valid*/ 1, 8036 /*bit*/ 4); 8037 ctl_done((union ctl_io *)ctsio); 8038 return (1); 8039 } 8040 8041 if (type>8 || type==2 || type==4 || type==0) { 8042 mtx_unlock(&lun->lun_lock); 8043 ctl_set_invalid_field(/*ctsio*/ ctsio, 8044 /*sks_valid*/ 1, 8045 /*command*/ 1, 8046 /*field*/ 2, 8047 /*bit_valid*/ 1, 8048 /*bit*/ 0); 8049 ctl_done((union ctl_io *)ctsio); 8050 return (1); 8051 } 8052 8053 /* 8054 * Unregister everybody else and build UA for 8055 * them 8056 */ 8057 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8058 if (i == residx || lun->pr_keys[i] == 0) 8059 continue; 8060 8061 if (!persis_offset 8062 && i <CTL_MAX_INITIATORS) 8063 lun->pending_ua[i] |= 8064 CTL_UA_REG_PREEMPT; 8065 else if (persis_offset 8066 && i >= persis_offset) 8067 lun->pending_ua[i-persis_offset] |= 8068 CTL_UA_REG_PREEMPT; 8069 lun->pr_keys[i] = 0; 8070 } 8071 lun->pr_key_count = 1; 8072 lun->res_type = type; 8073 if (lun->res_type != SPR_TYPE_WR_EX_AR 8074 && lun->res_type != SPR_TYPE_EX_AC_AR) 8075 lun->pr_res_idx = residx; 8076 8077 /* send msg to other side */ 8078 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8079 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8080 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8081 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8082 persis_io.pr.pr_info.res_type = type; 8083 memcpy(persis_io.pr.pr_info.sa_res_key, 8084 param->serv_act_res_key, 8085 sizeof(param->serv_act_res_key)); 8086 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8087 &persis_io, sizeof(persis_io), 0)) > 8088 CTL_HA_STATUS_SUCCESS) { 8089 printf("CTL:Persis Out error returned " 8090 "from ctl_ha_msg_send %d\n", 8091 isc_retval); 8092 } 8093 } else { 8094 /* not all registrants */ 8095 mtx_unlock(&lun->lun_lock); 8096 free(ctsio->kern_data_ptr, M_CTL); 8097 ctl_set_invalid_field(ctsio, 8098 /*sks_valid*/ 1, 8099 /*command*/ 0, 8100 /*field*/ 8, 8101 /*bit_valid*/ 0, 8102 /*bit*/ 0); 8103 ctl_done((union ctl_io *)ctsio); 8104 return (1); 8105 } 8106 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8107 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8108 int found = 0; 8109 8110 if (res_key == sa_res_key) { 8111 /* special case */ 8112 /* 8113 * The spec implies this is not good but doesn't 8114 * say what to do. There are two choices either 8115 * generate a res conflict or check condition 8116 * with illegal field in parameter data. Since 8117 * that is what is done when the sa_res_key is 8118 * zero I'll take that approach since this has 8119 * to do with the sa_res_key. 8120 */ 8121 mtx_unlock(&lun->lun_lock); 8122 free(ctsio->kern_data_ptr, M_CTL); 8123 ctl_set_invalid_field(ctsio, 8124 /*sks_valid*/ 1, 8125 /*command*/ 0, 8126 /*field*/ 8, 8127 /*bit_valid*/ 0, 8128 /*bit*/ 0); 8129 ctl_done((union ctl_io *)ctsio); 8130 return (1); 8131 } 8132 8133 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8134 if (lun->pr_keys[i] != sa_res_key) 8135 continue; 8136 8137 found = 1; 8138 lun->pr_keys[i] = 0; 8139 lun->pr_key_count--; 8140 8141 if (!persis_offset && i < CTL_MAX_INITIATORS) 8142 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8143 else if (persis_offset && i >= persis_offset) 8144 lun->pending_ua[i-persis_offset] |= 8145 CTL_UA_REG_PREEMPT; 8146 } 8147 if (!found) { 8148 mtx_unlock(&lun->lun_lock); 8149 free(ctsio->kern_data_ptr, M_CTL); 8150 ctl_set_reservation_conflict(ctsio); 8151 ctl_done((union ctl_io *)ctsio); 8152 return (CTL_RETVAL_COMPLETE); 8153 } 8154 /* send msg to other side */ 8155 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8156 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8157 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8158 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8159 persis_io.pr.pr_info.res_type = type; 8160 memcpy(persis_io.pr.pr_info.sa_res_key, 8161 param->serv_act_res_key, 8162 sizeof(param->serv_act_res_key)); 8163 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8164 &persis_io, sizeof(persis_io), 0)) > 8165 CTL_HA_STATUS_SUCCESS) { 8166 printf("CTL:Persis Out error returned from " 8167 "ctl_ha_msg_send %d\n", isc_retval); 8168 } 8169 } else { 8170 /* Reserved but not all registrants */ 8171 /* sa_res_key is res holder */ 8172 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8173 /* validate scope and type */ 8174 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8175 SPR_LU_SCOPE) { 8176 mtx_unlock(&lun->lun_lock); 8177 ctl_set_invalid_field(/*ctsio*/ ctsio, 8178 /*sks_valid*/ 1, 8179 /*command*/ 1, 8180 /*field*/ 2, 8181 /*bit_valid*/ 1, 8182 /*bit*/ 4); 8183 ctl_done((union ctl_io *)ctsio); 8184 return (1); 8185 } 8186 8187 if (type>8 || type==2 || type==4 || type==0) { 8188 mtx_unlock(&lun->lun_lock); 8189 ctl_set_invalid_field(/*ctsio*/ ctsio, 8190 /*sks_valid*/ 1, 8191 /*command*/ 1, 8192 /*field*/ 2, 8193 /*bit_valid*/ 1, 8194 /*bit*/ 0); 8195 ctl_done((union ctl_io *)ctsio); 8196 return (1); 8197 } 8198 8199 /* 8200 * Do the following: 8201 * if sa_res_key != res_key remove all 8202 * registrants w/sa_res_key and generate UA 8203 * for these registrants(Registrations 8204 * Preempted) if it wasn't an exclusive 8205 * reservation generate UA(Reservations 8206 * Preempted) for all other registered nexuses 8207 * if the type has changed. Establish the new 8208 * reservation and holder. If res_key and 8209 * sa_res_key are the same do the above 8210 * except don't unregister the res holder. 8211 */ 8212 8213 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8214 if (i == residx || lun->pr_keys[i] == 0) 8215 continue; 8216 8217 if (sa_res_key == lun->pr_keys[i]) { 8218 lun->pr_keys[i] = 0; 8219 lun->pr_key_count--; 8220 8221 if (!persis_offset 8222 && i < CTL_MAX_INITIATORS) 8223 lun->pending_ua[i] |= 8224 CTL_UA_REG_PREEMPT; 8225 else if (persis_offset 8226 && i >= persis_offset) 8227 lun->pending_ua[i-persis_offset] |= 8228 CTL_UA_REG_PREEMPT; 8229 } else if (type != lun->res_type 8230 && (lun->res_type == SPR_TYPE_WR_EX_RO 8231 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8232 if (!persis_offset 8233 && i < CTL_MAX_INITIATORS) 8234 lun->pending_ua[i] |= 8235 CTL_UA_RES_RELEASE; 8236 else if (persis_offset 8237 && i >= persis_offset) 8238 lun->pending_ua[ 8239 i-persis_offset] |= 8240 CTL_UA_RES_RELEASE; 8241 } 8242 } 8243 lun->res_type = type; 8244 if (lun->res_type != SPR_TYPE_WR_EX_AR 8245 && lun->res_type != SPR_TYPE_EX_AC_AR) 8246 lun->pr_res_idx = residx; 8247 else 8248 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8249 8250 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8251 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8252 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8253 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8254 persis_io.pr.pr_info.res_type = type; 8255 memcpy(persis_io.pr.pr_info.sa_res_key, 8256 param->serv_act_res_key, 8257 sizeof(param->serv_act_res_key)); 8258 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8259 &persis_io, sizeof(persis_io), 0)) > 8260 CTL_HA_STATUS_SUCCESS) { 8261 printf("CTL:Persis Out error returned " 8262 "from ctl_ha_msg_send %d\n", 8263 isc_retval); 8264 } 8265 } else { 8266 /* 8267 * sa_res_key is not the res holder just 8268 * remove registrants 8269 */ 8270 int found=0; 8271 8272 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8273 if (sa_res_key != lun->pr_keys[i]) 8274 continue; 8275 8276 found = 1; 8277 lun->pr_keys[i] = 0; 8278 lun->pr_key_count--; 8279 8280 if (!persis_offset 8281 && i < CTL_MAX_INITIATORS) 8282 lun->pending_ua[i] |= 8283 CTL_UA_REG_PREEMPT; 8284 else if (persis_offset 8285 && i >= persis_offset) 8286 lun->pending_ua[i-persis_offset] |= 8287 CTL_UA_REG_PREEMPT; 8288 } 8289 8290 if (!found) { 8291 mtx_unlock(&lun->lun_lock); 8292 free(ctsio->kern_data_ptr, M_CTL); 8293 ctl_set_reservation_conflict(ctsio); 8294 ctl_done((union ctl_io *)ctsio); 8295 return (1); 8296 } 8297 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8298 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8299 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8300 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8301 persis_io.pr.pr_info.res_type = type; 8302 memcpy(persis_io.pr.pr_info.sa_res_key, 8303 param->serv_act_res_key, 8304 sizeof(param->serv_act_res_key)); 8305 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8306 &persis_io, sizeof(persis_io), 0)) > 8307 CTL_HA_STATUS_SUCCESS) { 8308 printf("CTL:Persis Out error returned " 8309 "from ctl_ha_msg_send %d\n", 8310 isc_retval); 8311 } 8312 } 8313 } 8314 8315 lun->PRGeneration++; 8316 mtx_unlock(&lun->lun_lock); 8317 8318 return (retval); 8319 } 8320 8321 static void 8322 ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8323 { 8324 uint64_t sa_res_key; 8325 int i; 8326 8327 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8328 8329 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8330 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8331 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8332 if (sa_res_key == 0) { 8333 /* 8334 * Unregister everybody else and build UA for 8335 * them 8336 */ 8337 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8338 if (i == msg->pr.pr_info.residx || 8339 lun->pr_keys[i] == 0) 8340 continue; 8341 8342 if (!persis_offset 8343 && i < CTL_MAX_INITIATORS) 8344 lun->pending_ua[i] |= 8345 CTL_UA_REG_PREEMPT; 8346 else if (persis_offset && i >= persis_offset) 8347 lun->pending_ua[i - persis_offset] |= 8348 CTL_UA_REG_PREEMPT; 8349 lun->pr_keys[i] = 0; 8350 } 8351 8352 lun->pr_key_count = 1; 8353 lun->res_type = msg->pr.pr_info.res_type; 8354 if (lun->res_type != SPR_TYPE_WR_EX_AR 8355 && lun->res_type != SPR_TYPE_EX_AC_AR) 8356 lun->pr_res_idx = msg->pr.pr_info.residx; 8357 } else { 8358 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8359 if (sa_res_key == lun->pr_keys[i]) 8360 continue; 8361 8362 lun->pr_keys[i] = 0; 8363 lun->pr_key_count--; 8364 8365 if (!persis_offset 8366 && i < persis_offset) 8367 lun->pending_ua[i] |= 8368 CTL_UA_REG_PREEMPT; 8369 else if (persis_offset 8370 && i >= persis_offset) 8371 lun->pending_ua[i - persis_offset] |= 8372 CTL_UA_REG_PREEMPT; 8373 } 8374 } 8375 } else { 8376 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8377 if (i == msg->pr.pr_info.residx || 8378 lun->pr_keys[i] == 0) 8379 continue; 8380 8381 if (sa_res_key == lun->pr_keys[i]) { 8382 lun->pr_keys[i] = 0; 8383 lun->pr_key_count--; 8384 if (!persis_offset 8385 && i < CTL_MAX_INITIATORS) 8386 lun->pending_ua[i] |= 8387 CTL_UA_REG_PREEMPT; 8388 else if (persis_offset 8389 && i >= persis_offset) 8390 lun->pending_ua[i - persis_offset] |= 8391 CTL_UA_REG_PREEMPT; 8392 } else if (msg->pr.pr_info.res_type != lun->res_type 8393 && (lun->res_type == SPR_TYPE_WR_EX_RO 8394 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8395 if (!persis_offset 8396 && i < persis_offset) 8397 lun->pending_ua[i] |= 8398 CTL_UA_RES_RELEASE; 8399 else if (persis_offset 8400 && i >= persis_offset) 8401 lun->pending_ua[i - persis_offset] |= 8402 CTL_UA_RES_RELEASE; 8403 } 8404 } 8405 lun->res_type = msg->pr.pr_info.res_type; 8406 if (lun->res_type != SPR_TYPE_WR_EX_AR 8407 && lun->res_type != SPR_TYPE_EX_AC_AR) 8408 lun->pr_res_idx = msg->pr.pr_info.residx; 8409 else 8410 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8411 } 8412 lun->PRGeneration++; 8413 8414 } 8415 8416 8417 int 8418 ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8419 { 8420 int retval; 8421 int isc_retval; 8422 u_int32_t param_len; 8423 struct scsi_per_res_out *cdb; 8424 struct ctl_lun *lun; 8425 struct scsi_per_res_out_parms* param; 8426 struct ctl_softc *softc; 8427 uint32_t residx; 8428 uint64_t res_key, sa_res_key; 8429 uint8_t type; 8430 union ctl_ha_msg persis_io; 8431 int i; 8432 8433 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8434 8435 retval = CTL_RETVAL_COMPLETE; 8436 8437 softc = control_softc; 8438 8439 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8440 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8441 8442 /* 8443 * We only support whole-LUN scope. The scope & type are ignored for 8444 * register, register and ignore existing key and clear. 8445 * We sometimes ignore scope and type on preempts too!! 8446 * Verify reservation type here as well. 8447 */ 8448 type = cdb->scope_type & SPR_TYPE_MASK; 8449 if ((cdb->action == SPRO_RESERVE) 8450 || (cdb->action == SPRO_RELEASE)) { 8451 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8452 ctl_set_invalid_field(/*ctsio*/ ctsio, 8453 /*sks_valid*/ 1, 8454 /*command*/ 1, 8455 /*field*/ 2, 8456 /*bit_valid*/ 1, 8457 /*bit*/ 4); 8458 ctl_done((union ctl_io *)ctsio); 8459 return (CTL_RETVAL_COMPLETE); 8460 } 8461 8462 if (type>8 || type==2 || type==4 || type==0) { 8463 ctl_set_invalid_field(/*ctsio*/ ctsio, 8464 /*sks_valid*/ 1, 8465 /*command*/ 1, 8466 /*field*/ 2, 8467 /*bit_valid*/ 1, 8468 /*bit*/ 0); 8469 ctl_done((union ctl_io *)ctsio); 8470 return (CTL_RETVAL_COMPLETE); 8471 } 8472 } 8473 8474 param_len = scsi_4btoul(cdb->length); 8475 8476 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8477 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8478 ctsio->kern_data_len = param_len; 8479 ctsio->kern_total_len = param_len; 8480 ctsio->kern_data_resid = 0; 8481 ctsio->kern_rel_offset = 0; 8482 ctsio->kern_sg_entries = 0; 8483 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8484 ctsio->be_move_done = ctl_config_move_done; 8485 ctl_datamove((union ctl_io *)ctsio); 8486 8487 return (CTL_RETVAL_COMPLETE); 8488 } 8489 8490 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8491 8492 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8493 res_key = scsi_8btou64(param->res_key.key); 8494 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8495 8496 /* 8497 * Validate the reservation key here except for SPRO_REG_IGNO 8498 * This must be done for all other service actions 8499 */ 8500 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8501 mtx_lock(&lun->lun_lock); 8502 if (lun->pr_keys[residx] != 0) { 8503 if (res_key != lun->pr_keys[residx]) { 8504 /* 8505 * The current key passed in doesn't match 8506 * the one the initiator previously 8507 * 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 } 8515 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8516 /* 8517 * We are not registered 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 } else if (res_key != 0) { 8525 /* 8526 * We are not registered and trying to register but 8527 * the register key isn't zero. 8528 */ 8529 mtx_unlock(&lun->lun_lock); 8530 free(ctsio->kern_data_ptr, M_CTL); 8531 ctl_set_reservation_conflict(ctsio); 8532 ctl_done((union ctl_io *)ctsio); 8533 return (CTL_RETVAL_COMPLETE); 8534 } 8535 mtx_unlock(&lun->lun_lock); 8536 } 8537 8538 switch (cdb->action & SPRO_ACTION_MASK) { 8539 case SPRO_REGISTER: 8540 case SPRO_REG_IGNO: { 8541 8542 #if 0 8543 printf("Registration received\n"); 8544 #endif 8545 8546 /* 8547 * We don't support any of these options, as we report in 8548 * the read capabilities request (see 8549 * ctl_persistent_reserve_in(), above). 8550 */ 8551 if ((param->flags & SPR_SPEC_I_PT) 8552 || (param->flags & SPR_ALL_TG_PT) 8553 || (param->flags & SPR_APTPL)) { 8554 int bit_ptr; 8555 8556 if (param->flags & SPR_APTPL) 8557 bit_ptr = 0; 8558 else if (param->flags & SPR_ALL_TG_PT) 8559 bit_ptr = 2; 8560 else /* SPR_SPEC_I_PT */ 8561 bit_ptr = 3; 8562 8563 free(ctsio->kern_data_ptr, M_CTL); 8564 ctl_set_invalid_field(ctsio, 8565 /*sks_valid*/ 1, 8566 /*command*/ 0, 8567 /*field*/ 20, 8568 /*bit_valid*/ 1, 8569 /*bit*/ bit_ptr); 8570 ctl_done((union ctl_io *)ctsio); 8571 return (CTL_RETVAL_COMPLETE); 8572 } 8573 8574 mtx_lock(&lun->lun_lock); 8575 8576 /* 8577 * The initiator wants to clear the 8578 * key/unregister. 8579 */ 8580 if (sa_res_key == 0) { 8581 if ((res_key == 0 8582 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8583 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8584 && lun->pr_keys[residx] == 0)) { 8585 mtx_unlock(&lun->lun_lock); 8586 goto done; 8587 } 8588 8589 lun->pr_keys[residx] = 0; 8590 lun->pr_key_count--; 8591 8592 if (residx == lun->pr_res_idx) { 8593 lun->flags &= ~CTL_LUN_PR_RESERVED; 8594 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8595 8596 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8597 || lun->res_type == SPR_TYPE_EX_AC_RO) 8598 && lun->pr_key_count) { 8599 /* 8600 * If the reservation is a registrants 8601 * only type we need to generate a UA 8602 * for other registered inits. The 8603 * sense code should be RESERVATIONS 8604 * RELEASED 8605 */ 8606 8607 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8608 if (lun->pr_keys[ 8609 i + persis_offset] == 0) 8610 continue; 8611 lun->pending_ua[i] |= 8612 CTL_UA_RES_RELEASE; 8613 } 8614 } 8615 lun->res_type = 0; 8616 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8617 if (lun->pr_key_count==0) { 8618 lun->flags &= ~CTL_LUN_PR_RESERVED; 8619 lun->res_type = 0; 8620 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8621 } 8622 } 8623 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8624 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8625 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8626 persis_io.pr.pr_info.residx = residx; 8627 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8628 &persis_io, sizeof(persis_io), 0 )) > 8629 CTL_HA_STATUS_SUCCESS) { 8630 printf("CTL:Persis Out error returned from " 8631 "ctl_ha_msg_send %d\n", isc_retval); 8632 } 8633 } else /* sa_res_key != 0 */ { 8634 8635 /* 8636 * If we aren't registered currently then increment 8637 * the key count and set the registered flag. 8638 */ 8639 if (lun->pr_keys[residx] == 0) 8640 lun->pr_key_count++; 8641 lun->pr_keys[residx] = sa_res_key; 8642 8643 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8644 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8645 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8646 persis_io.pr.pr_info.residx = residx; 8647 memcpy(persis_io.pr.pr_info.sa_res_key, 8648 param->serv_act_res_key, 8649 sizeof(param->serv_act_res_key)); 8650 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8651 &persis_io, sizeof(persis_io), 0)) > 8652 CTL_HA_STATUS_SUCCESS) { 8653 printf("CTL:Persis Out error returned from " 8654 "ctl_ha_msg_send %d\n", isc_retval); 8655 } 8656 } 8657 lun->PRGeneration++; 8658 mtx_unlock(&lun->lun_lock); 8659 8660 break; 8661 } 8662 case SPRO_RESERVE: 8663 #if 0 8664 printf("Reserve executed type %d\n", type); 8665 #endif 8666 mtx_lock(&lun->lun_lock); 8667 if (lun->flags & CTL_LUN_PR_RESERVED) { 8668 /* 8669 * if this isn't the reservation holder and it's 8670 * not a "all registrants" type or if the type is 8671 * different then we have a conflict 8672 */ 8673 if ((lun->pr_res_idx != residx 8674 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8675 || lun->res_type != type) { 8676 mtx_unlock(&lun->lun_lock); 8677 free(ctsio->kern_data_ptr, M_CTL); 8678 ctl_set_reservation_conflict(ctsio); 8679 ctl_done((union ctl_io *)ctsio); 8680 return (CTL_RETVAL_COMPLETE); 8681 } 8682 mtx_unlock(&lun->lun_lock); 8683 } else /* create a reservation */ { 8684 /* 8685 * If it's not an "all registrants" type record 8686 * reservation holder 8687 */ 8688 if (type != SPR_TYPE_WR_EX_AR 8689 && type != SPR_TYPE_EX_AC_AR) 8690 lun->pr_res_idx = residx; /* Res holder */ 8691 else 8692 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8693 8694 lun->flags |= CTL_LUN_PR_RESERVED; 8695 lun->res_type = type; 8696 8697 mtx_unlock(&lun->lun_lock); 8698 8699 /* send msg to other side */ 8700 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8701 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8702 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8703 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8704 persis_io.pr.pr_info.res_type = type; 8705 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8706 &persis_io, sizeof(persis_io), 0)) > 8707 CTL_HA_STATUS_SUCCESS) { 8708 printf("CTL:Persis Out error returned from " 8709 "ctl_ha_msg_send %d\n", isc_retval); 8710 } 8711 } 8712 break; 8713 8714 case SPRO_RELEASE: 8715 mtx_lock(&lun->lun_lock); 8716 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8717 /* No reservation exists return good status */ 8718 mtx_unlock(&lun->lun_lock); 8719 goto done; 8720 } 8721 /* 8722 * Is this nexus a reservation holder? 8723 */ 8724 if (lun->pr_res_idx != residx 8725 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8726 /* 8727 * not a res holder return good status but 8728 * do nothing 8729 */ 8730 mtx_unlock(&lun->lun_lock); 8731 goto done; 8732 } 8733 8734 if (lun->res_type != type) { 8735 mtx_unlock(&lun->lun_lock); 8736 free(ctsio->kern_data_ptr, M_CTL); 8737 ctl_set_illegal_pr_release(ctsio); 8738 ctl_done((union ctl_io *)ctsio); 8739 return (CTL_RETVAL_COMPLETE); 8740 } 8741 8742 /* okay to release */ 8743 lun->flags &= ~CTL_LUN_PR_RESERVED; 8744 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8745 lun->res_type = 0; 8746 8747 /* 8748 * if this isn't an exclusive access 8749 * res generate UA for all other 8750 * registrants. 8751 */ 8752 if (type != SPR_TYPE_EX_AC 8753 && type != SPR_TYPE_WR_EX) { 8754 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8755 if (i == residx || 8756 lun->pr_keys[i + persis_offset] == 0) 8757 continue; 8758 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8759 } 8760 } 8761 mtx_unlock(&lun->lun_lock); 8762 /* Send msg to other side */ 8763 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8764 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8765 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8766 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8767 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8768 printf("CTL:Persis Out error returned from " 8769 "ctl_ha_msg_send %d\n", isc_retval); 8770 } 8771 break; 8772 8773 case SPRO_CLEAR: 8774 /* send msg to other side */ 8775 8776 mtx_lock(&lun->lun_lock); 8777 lun->flags &= ~CTL_LUN_PR_RESERVED; 8778 lun->res_type = 0; 8779 lun->pr_key_count = 0; 8780 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8781 8782 lun->pr_keys[residx] = 0; 8783 8784 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8785 if (lun->pr_keys[i] != 0) { 8786 if (!persis_offset && i < CTL_MAX_INITIATORS) 8787 lun->pending_ua[i] |= 8788 CTL_UA_RES_PREEMPT; 8789 else if (persis_offset && i >= persis_offset) 8790 lun->pending_ua[i-persis_offset] |= 8791 CTL_UA_RES_PREEMPT; 8792 8793 lun->pr_keys[i] = 0; 8794 } 8795 lun->PRGeneration++; 8796 mtx_unlock(&lun->lun_lock); 8797 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8798 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8799 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8800 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8801 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8802 printf("CTL:Persis Out error returned from " 8803 "ctl_ha_msg_send %d\n", isc_retval); 8804 } 8805 break; 8806 8807 case SPRO_PREEMPT: { 8808 int nretval; 8809 8810 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8811 residx, ctsio, cdb, param); 8812 if (nretval != 0) 8813 return (CTL_RETVAL_COMPLETE); 8814 break; 8815 } 8816 default: 8817 panic("Invalid PR type %x", cdb->action); 8818 } 8819 8820 done: 8821 free(ctsio->kern_data_ptr, M_CTL); 8822 ctl_set_success(ctsio); 8823 ctl_done((union ctl_io *)ctsio); 8824 8825 return (retval); 8826 } 8827 8828 /* 8829 * This routine is for handling a message from the other SC pertaining to 8830 * persistent reserve out. All the error checking will have been done 8831 * so only perorming the action need be done here to keep the two 8832 * in sync. 8833 */ 8834 static void 8835 ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8836 { 8837 struct ctl_lun *lun; 8838 struct ctl_softc *softc; 8839 int i; 8840 uint32_t targ_lun; 8841 8842 softc = control_softc; 8843 8844 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8845 lun = softc->ctl_luns[targ_lun]; 8846 mtx_lock(&lun->lun_lock); 8847 switch(msg->pr.pr_info.action) { 8848 case CTL_PR_REG_KEY: 8849 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8850 lun->pr_key_count++; 8851 lun->pr_keys[msg->pr.pr_info.residx] = 8852 scsi_8btou64(msg->pr.pr_info.sa_res_key); 8853 lun->PRGeneration++; 8854 break; 8855 8856 case CTL_PR_UNREG_KEY: 8857 lun->pr_keys[msg->pr.pr_info.residx] = 0; 8858 lun->pr_key_count--; 8859 8860 /* XXX Need to see if the reservation has been released */ 8861 /* if so do we need to generate UA? */ 8862 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8863 lun->flags &= ~CTL_LUN_PR_RESERVED; 8864 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8865 8866 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8867 || lun->res_type == SPR_TYPE_EX_AC_RO) 8868 && lun->pr_key_count) { 8869 /* 8870 * If the reservation is a registrants 8871 * only type we need to generate a UA 8872 * for other registered inits. The 8873 * sense code should be RESERVATIONS 8874 * RELEASED 8875 */ 8876 8877 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8878 if (lun->pr_keys[i+ 8879 persis_offset] == 0) 8880 continue; 8881 8882 lun->pending_ua[i] |= 8883 CTL_UA_RES_RELEASE; 8884 } 8885 } 8886 lun->res_type = 0; 8887 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8888 if (lun->pr_key_count==0) { 8889 lun->flags &= ~CTL_LUN_PR_RESERVED; 8890 lun->res_type = 0; 8891 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8892 } 8893 } 8894 lun->PRGeneration++; 8895 break; 8896 8897 case CTL_PR_RESERVE: 8898 lun->flags |= CTL_LUN_PR_RESERVED; 8899 lun->res_type = msg->pr.pr_info.res_type; 8900 lun->pr_res_idx = msg->pr.pr_info.residx; 8901 8902 break; 8903 8904 case CTL_PR_RELEASE: 8905 /* 8906 * if this isn't an exclusive access res generate UA for all 8907 * other registrants. 8908 */ 8909 if (lun->res_type != SPR_TYPE_EX_AC 8910 && lun->res_type != SPR_TYPE_WR_EX) { 8911 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8912 if (lun->pr_keys[i+persis_offset] != 0) 8913 lun->pending_ua[i] |= 8914 CTL_UA_RES_RELEASE; 8915 } 8916 8917 lun->flags &= ~CTL_LUN_PR_RESERVED; 8918 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8919 lun->res_type = 0; 8920 break; 8921 8922 case CTL_PR_PREEMPT: 8923 ctl_pro_preempt_other(lun, msg); 8924 break; 8925 case CTL_PR_CLEAR: 8926 lun->flags &= ~CTL_LUN_PR_RESERVED; 8927 lun->res_type = 0; 8928 lun->pr_key_count = 0; 8929 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8930 8931 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8932 if (lun->pr_keys[i] == 0) 8933 continue; 8934 if (!persis_offset 8935 && i < CTL_MAX_INITIATORS) 8936 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8937 else if (persis_offset 8938 && i >= persis_offset) 8939 lun->pending_ua[i-persis_offset] |= 8940 CTL_UA_RES_PREEMPT; 8941 lun->pr_keys[i] = 0; 8942 } 8943 lun->PRGeneration++; 8944 break; 8945 } 8946 8947 mtx_unlock(&lun->lun_lock); 8948 } 8949 8950 int 8951 ctl_read_write(struct ctl_scsiio *ctsio) 8952 { 8953 struct ctl_lun *lun; 8954 struct ctl_lba_len_flags *lbalen; 8955 uint64_t lba; 8956 uint32_t num_blocks; 8957 int flags, retval; 8958 int isread; 8959 8960 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8961 8962 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8963 8964 flags = 0; 8965 retval = CTL_RETVAL_COMPLETE; 8966 8967 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8968 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8969 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8970 uint32_t residx; 8971 8972 /* 8973 * XXX KDM need a lock here. 8974 */ 8975 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8976 if ((lun->res_type == SPR_TYPE_EX_AC 8977 && residx != lun->pr_res_idx) 8978 || ((lun->res_type == SPR_TYPE_EX_AC_RO 8979 || lun->res_type == SPR_TYPE_EX_AC_AR) 8980 && lun->pr_keys[residx] == 0)) { 8981 ctl_set_reservation_conflict(ctsio); 8982 ctl_done((union ctl_io *)ctsio); 8983 return (CTL_RETVAL_COMPLETE); 8984 } 8985 } 8986 8987 switch (ctsio->cdb[0]) { 8988 case READ_6: 8989 case WRITE_6: { 8990 struct scsi_rw_6 *cdb; 8991 8992 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8993 8994 lba = scsi_3btoul(cdb->addr); 8995 /* only 5 bits are valid in the most significant address byte */ 8996 lba &= 0x1fffff; 8997 num_blocks = cdb->length; 8998 /* 8999 * This is correct according to SBC-2. 9000 */ 9001 if (num_blocks == 0) 9002 num_blocks = 256; 9003 break; 9004 } 9005 case READ_10: 9006 case WRITE_10: { 9007 struct scsi_rw_10 *cdb; 9008 9009 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9010 if (cdb->byte2 & SRW10_FUA) 9011 flags |= CTL_LLF_FUA; 9012 if (cdb->byte2 & SRW10_DPO) 9013 flags |= CTL_LLF_DPO; 9014 lba = scsi_4btoul(cdb->addr); 9015 num_blocks = scsi_2btoul(cdb->length); 9016 break; 9017 } 9018 case WRITE_VERIFY_10: { 9019 struct scsi_write_verify_10 *cdb; 9020 9021 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9022 flags |= CTL_LLF_FUA; 9023 if (cdb->byte2 & SWV_DPO) 9024 flags |= CTL_LLF_DPO; 9025 lba = scsi_4btoul(cdb->addr); 9026 num_blocks = scsi_2btoul(cdb->length); 9027 break; 9028 } 9029 case READ_12: 9030 case WRITE_12: { 9031 struct scsi_rw_12 *cdb; 9032 9033 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9034 if (cdb->byte2 & SRW12_FUA) 9035 flags |= CTL_LLF_FUA; 9036 if (cdb->byte2 & SRW12_DPO) 9037 flags |= CTL_LLF_DPO; 9038 lba = scsi_4btoul(cdb->addr); 9039 num_blocks = scsi_4btoul(cdb->length); 9040 break; 9041 } 9042 case WRITE_VERIFY_12: { 9043 struct scsi_write_verify_12 *cdb; 9044 9045 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9046 flags |= CTL_LLF_FUA; 9047 if (cdb->byte2 & SWV_DPO) 9048 flags |= CTL_LLF_DPO; 9049 lba = scsi_4btoul(cdb->addr); 9050 num_blocks = scsi_4btoul(cdb->length); 9051 break; 9052 } 9053 case READ_16: 9054 case WRITE_16: { 9055 struct scsi_rw_16 *cdb; 9056 9057 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9058 if (cdb->byte2 & SRW12_FUA) 9059 flags |= CTL_LLF_FUA; 9060 if (cdb->byte2 & SRW12_DPO) 9061 flags |= CTL_LLF_DPO; 9062 lba = scsi_8btou64(cdb->addr); 9063 num_blocks = scsi_4btoul(cdb->length); 9064 break; 9065 } 9066 case WRITE_ATOMIC_16: { 9067 struct scsi_rw_16 *cdb; 9068 9069 if (lun->be_lun->atomicblock == 0) { 9070 ctl_set_invalid_opcode(ctsio); 9071 ctl_done((union ctl_io *)ctsio); 9072 return (CTL_RETVAL_COMPLETE); 9073 } 9074 9075 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9076 if (cdb->byte2 & SRW12_FUA) 9077 flags |= CTL_LLF_FUA; 9078 if (cdb->byte2 & SRW12_DPO) 9079 flags |= CTL_LLF_DPO; 9080 lba = scsi_8btou64(cdb->addr); 9081 num_blocks = scsi_4btoul(cdb->length); 9082 if (num_blocks > lun->be_lun->atomicblock) { 9083 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9084 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9085 /*bit*/ 0); 9086 ctl_done((union ctl_io *)ctsio); 9087 return (CTL_RETVAL_COMPLETE); 9088 } 9089 break; 9090 } 9091 case WRITE_VERIFY_16: { 9092 struct scsi_write_verify_16 *cdb; 9093 9094 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9095 flags |= CTL_LLF_FUA; 9096 if (cdb->byte2 & SWV_DPO) 9097 flags |= CTL_LLF_DPO; 9098 lba = scsi_8btou64(cdb->addr); 9099 num_blocks = scsi_4btoul(cdb->length); 9100 break; 9101 } 9102 default: 9103 /* 9104 * We got a command we don't support. This shouldn't 9105 * happen, commands should be filtered out above us. 9106 */ 9107 ctl_set_invalid_opcode(ctsio); 9108 ctl_done((union ctl_io *)ctsio); 9109 9110 return (CTL_RETVAL_COMPLETE); 9111 break; /* NOTREACHED */ 9112 } 9113 9114 /* 9115 * The first check is to make sure we're in bounds, the second 9116 * check is to catch wrap-around problems. If the lba + num blocks 9117 * is less than the lba, then we've wrapped around and the block 9118 * range is invalid anyway. 9119 */ 9120 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9121 || ((lba + num_blocks) < lba)) { 9122 ctl_set_lba_out_of_range(ctsio); 9123 ctl_done((union ctl_io *)ctsio); 9124 return (CTL_RETVAL_COMPLETE); 9125 } 9126 9127 /* 9128 * According to SBC-3, a transfer length of 0 is not an error. 9129 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9130 * translates to 256 blocks for those commands. 9131 */ 9132 if (num_blocks == 0) { 9133 ctl_set_success(ctsio); 9134 ctl_done((union ctl_io *)ctsio); 9135 return (CTL_RETVAL_COMPLETE); 9136 } 9137 9138 /* Set FUA and/or DPO if caches are disabled. */ 9139 if (isread) { 9140 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9141 SCP_RCD) != 0) 9142 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9143 } else { 9144 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9145 SCP_WCE) == 0) 9146 flags |= CTL_LLF_FUA; 9147 } 9148 9149 lbalen = (struct ctl_lba_len_flags *) 9150 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9151 lbalen->lba = lba; 9152 lbalen->len = num_blocks; 9153 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9154 9155 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9156 ctsio->kern_rel_offset = 0; 9157 9158 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9159 9160 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9161 9162 return (retval); 9163 } 9164 9165 static int 9166 ctl_cnw_cont(union ctl_io *io) 9167 { 9168 struct ctl_scsiio *ctsio; 9169 struct ctl_lun *lun; 9170 struct ctl_lba_len_flags *lbalen; 9171 int retval; 9172 9173 ctsio = &io->scsiio; 9174 ctsio->io_hdr.status = CTL_STATUS_NONE; 9175 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9176 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9177 lbalen = (struct ctl_lba_len_flags *) 9178 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9179 lbalen->flags &= ~CTL_LLF_COMPARE; 9180 lbalen->flags |= CTL_LLF_WRITE; 9181 9182 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9183 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9184 return (retval); 9185 } 9186 9187 int 9188 ctl_cnw(struct ctl_scsiio *ctsio) 9189 { 9190 struct ctl_lun *lun; 9191 struct ctl_lba_len_flags *lbalen; 9192 uint64_t lba; 9193 uint32_t num_blocks; 9194 int flags, retval; 9195 9196 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9197 9198 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9199 9200 flags = 0; 9201 retval = CTL_RETVAL_COMPLETE; 9202 9203 switch (ctsio->cdb[0]) { 9204 case COMPARE_AND_WRITE: { 9205 struct scsi_compare_and_write *cdb; 9206 9207 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9208 if (cdb->byte2 & SRW10_FUA) 9209 flags |= CTL_LLF_FUA; 9210 if (cdb->byte2 & SRW10_DPO) 9211 flags |= CTL_LLF_DPO; 9212 lba = scsi_8btou64(cdb->addr); 9213 num_blocks = cdb->length; 9214 break; 9215 } 9216 default: 9217 /* 9218 * We got a command we don't support. This shouldn't 9219 * happen, commands should be filtered out above us. 9220 */ 9221 ctl_set_invalid_opcode(ctsio); 9222 ctl_done((union ctl_io *)ctsio); 9223 9224 return (CTL_RETVAL_COMPLETE); 9225 break; /* NOTREACHED */ 9226 } 9227 9228 /* 9229 * The first check is to make sure we're in bounds, the second 9230 * check is to catch wrap-around problems. If the lba + num blocks 9231 * is less than the lba, then we've wrapped around and the block 9232 * range is invalid anyway. 9233 */ 9234 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9235 || ((lba + num_blocks) < lba)) { 9236 ctl_set_lba_out_of_range(ctsio); 9237 ctl_done((union ctl_io *)ctsio); 9238 return (CTL_RETVAL_COMPLETE); 9239 } 9240 9241 /* 9242 * According to SBC-3, a transfer length of 0 is not an error. 9243 */ 9244 if (num_blocks == 0) { 9245 ctl_set_success(ctsio); 9246 ctl_done((union ctl_io *)ctsio); 9247 return (CTL_RETVAL_COMPLETE); 9248 } 9249 9250 /* Set FUA if write cache is disabled. */ 9251 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9252 SCP_WCE) == 0) 9253 flags |= CTL_LLF_FUA; 9254 9255 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9256 ctsio->kern_rel_offset = 0; 9257 9258 /* 9259 * Set the IO_CONT flag, so that if this I/O gets passed to 9260 * ctl_data_submit_done(), it'll get passed back to 9261 * ctl_ctl_cnw_cont() for further processing. 9262 */ 9263 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9264 ctsio->io_cont = ctl_cnw_cont; 9265 9266 lbalen = (struct ctl_lba_len_flags *) 9267 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9268 lbalen->lba = lba; 9269 lbalen->len = num_blocks; 9270 lbalen->flags = CTL_LLF_COMPARE | flags; 9271 9272 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9273 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9274 return (retval); 9275 } 9276 9277 int 9278 ctl_verify(struct ctl_scsiio *ctsio) 9279 { 9280 struct ctl_lun *lun; 9281 struct ctl_lba_len_flags *lbalen; 9282 uint64_t lba; 9283 uint32_t num_blocks; 9284 int bytchk, flags; 9285 int retval; 9286 9287 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9288 9289 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9290 9291 bytchk = 0; 9292 flags = CTL_LLF_FUA; 9293 retval = CTL_RETVAL_COMPLETE; 9294 9295 switch (ctsio->cdb[0]) { 9296 case VERIFY_10: { 9297 struct scsi_verify_10 *cdb; 9298 9299 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9300 if (cdb->byte2 & SVFY_BYTCHK) 9301 bytchk = 1; 9302 if (cdb->byte2 & SVFY_DPO) 9303 flags |= CTL_LLF_DPO; 9304 lba = scsi_4btoul(cdb->addr); 9305 num_blocks = scsi_2btoul(cdb->length); 9306 break; 9307 } 9308 case VERIFY_12: { 9309 struct scsi_verify_12 *cdb; 9310 9311 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9312 if (cdb->byte2 & SVFY_BYTCHK) 9313 bytchk = 1; 9314 if (cdb->byte2 & SVFY_DPO) 9315 flags |= CTL_LLF_DPO; 9316 lba = scsi_4btoul(cdb->addr); 9317 num_blocks = scsi_4btoul(cdb->length); 9318 break; 9319 } 9320 case VERIFY_16: { 9321 struct scsi_rw_16 *cdb; 9322 9323 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9324 if (cdb->byte2 & SVFY_BYTCHK) 9325 bytchk = 1; 9326 if (cdb->byte2 & SVFY_DPO) 9327 flags |= CTL_LLF_DPO; 9328 lba = scsi_8btou64(cdb->addr); 9329 num_blocks = scsi_4btoul(cdb->length); 9330 break; 9331 } 9332 default: 9333 /* 9334 * We got a command we don't support. This shouldn't 9335 * happen, commands should be filtered out above us. 9336 */ 9337 ctl_set_invalid_opcode(ctsio); 9338 ctl_done((union ctl_io *)ctsio); 9339 return (CTL_RETVAL_COMPLETE); 9340 } 9341 9342 /* 9343 * The first check is to make sure we're in bounds, the second 9344 * check is to catch wrap-around problems. If the lba + num blocks 9345 * is less than the lba, then we've wrapped around and the block 9346 * range is invalid anyway. 9347 */ 9348 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9349 || ((lba + num_blocks) < lba)) { 9350 ctl_set_lba_out_of_range(ctsio); 9351 ctl_done((union ctl_io *)ctsio); 9352 return (CTL_RETVAL_COMPLETE); 9353 } 9354 9355 /* 9356 * According to SBC-3, a transfer length of 0 is not an error. 9357 */ 9358 if (num_blocks == 0) { 9359 ctl_set_success(ctsio); 9360 ctl_done((union ctl_io *)ctsio); 9361 return (CTL_RETVAL_COMPLETE); 9362 } 9363 9364 lbalen = (struct ctl_lba_len_flags *) 9365 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9366 lbalen->lba = lba; 9367 lbalen->len = num_blocks; 9368 if (bytchk) { 9369 lbalen->flags = CTL_LLF_COMPARE | flags; 9370 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9371 } else { 9372 lbalen->flags = CTL_LLF_VERIFY | flags; 9373 ctsio->kern_total_len = 0; 9374 } 9375 ctsio->kern_rel_offset = 0; 9376 9377 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9378 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9379 return (retval); 9380 } 9381 9382 int 9383 ctl_report_luns(struct ctl_scsiio *ctsio) 9384 { 9385 struct scsi_report_luns *cdb; 9386 struct scsi_report_luns_data *lun_data; 9387 struct ctl_lun *lun, *request_lun; 9388 int num_luns, retval; 9389 uint32_t alloc_len, lun_datalen; 9390 int num_filled, well_known; 9391 uint32_t initidx, targ_lun_id, lun_id; 9392 9393 retval = CTL_RETVAL_COMPLETE; 9394 well_known = 0; 9395 9396 cdb = (struct scsi_report_luns *)ctsio->cdb; 9397 9398 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9399 9400 mtx_lock(&control_softc->ctl_lock); 9401 num_luns = control_softc->num_luns; 9402 mtx_unlock(&control_softc->ctl_lock); 9403 9404 switch (cdb->select_report) { 9405 case RPL_REPORT_DEFAULT: 9406 case RPL_REPORT_ALL: 9407 break; 9408 case RPL_REPORT_WELLKNOWN: 9409 well_known = 1; 9410 num_luns = 0; 9411 break; 9412 default: 9413 ctl_set_invalid_field(ctsio, 9414 /*sks_valid*/ 1, 9415 /*command*/ 1, 9416 /*field*/ 2, 9417 /*bit_valid*/ 0, 9418 /*bit*/ 0); 9419 ctl_done((union ctl_io *)ctsio); 9420 return (retval); 9421 break; /* NOTREACHED */ 9422 } 9423 9424 alloc_len = scsi_4btoul(cdb->length); 9425 /* 9426 * The initiator has to allocate at least 16 bytes for this request, 9427 * so he can at least get the header and the first LUN. Otherwise 9428 * we reject the request (per SPC-3 rev 14, section 6.21). 9429 */ 9430 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9431 sizeof(struct scsi_report_luns_lundata))) { 9432 ctl_set_invalid_field(ctsio, 9433 /*sks_valid*/ 1, 9434 /*command*/ 1, 9435 /*field*/ 6, 9436 /*bit_valid*/ 0, 9437 /*bit*/ 0); 9438 ctl_done((union ctl_io *)ctsio); 9439 return (retval); 9440 } 9441 9442 request_lun = (struct ctl_lun *) 9443 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9444 9445 lun_datalen = sizeof(*lun_data) + 9446 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9447 9448 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9449 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9450 ctsio->kern_sg_entries = 0; 9451 9452 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9453 9454 mtx_lock(&control_softc->ctl_lock); 9455 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9456 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9457 if (lun_id >= CTL_MAX_LUNS) 9458 continue; 9459 lun = control_softc->ctl_luns[lun_id]; 9460 if (lun == NULL) 9461 continue; 9462 9463 if (targ_lun_id <= 0xff) { 9464 /* 9465 * Peripheral addressing method, bus number 0. 9466 */ 9467 lun_data->luns[num_filled].lundata[0] = 9468 RPL_LUNDATA_ATYP_PERIPH; 9469 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9470 num_filled++; 9471 } else if (targ_lun_id <= 0x3fff) { 9472 /* 9473 * Flat addressing method. 9474 */ 9475 lun_data->luns[num_filled].lundata[0] = 9476 RPL_LUNDATA_ATYP_FLAT | 9477 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9478 #ifdef OLDCTLHEADERS 9479 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9480 (targ_lun_id & SRLD_BUS_LUN_MASK); 9481 #endif 9482 lun_data->luns[num_filled].lundata[1] = 9483 #ifdef OLDCTLHEADERS 9484 targ_lun_id >> SRLD_BUS_LUN_BITS; 9485 #endif 9486 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9487 num_filled++; 9488 } else { 9489 printf("ctl_report_luns: bogus LUN number %jd, " 9490 "skipping\n", (intmax_t)targ_lun_id); 9491 } 9492 /* 9493 * According to SPC-3, rev 14 section 6.21: 9494 * 9495 * "The execution of a REPORT LUNS command to any valid and 9496 * installed logical unit shall clear the REPORTED LUNS DATA 9497 * HAS CHANGED unit attention condition for all logical 9498 * units of that target with respect to the requesting 9499 * initiator. A valid and installed logical unit is one 9500 * having a PERIPHERAL QUALIFIER of 000b in the standard 9501 * INQUIRY data (see 6.4.2)." 9502 * 9503 * If request_lun is NULL, the LUN this report luns command 9504 * was issued to is either disabled or doesn't exist. In that 9505 * case, we shouldn't clear any pending lun change unit 9506 * attention. 9507 */ 9508 if (request_lun != NULL) { 9509 mtx_lock(&lun->lun_lock); 9510 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9511 mtx_unlock(&lun->lun_lock); 9512 } 9513 } 9514 mtx_unlock(&control_softc->ctl_lock); 9515 9516 /* 9517 * It's quite possible that we've returned fewer LUNs than we allocated 9518 * space for. Trim it. 9519 */ 9520 lun_datalen = sizeof(*lun_data) + 9521 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9522 9523 if (lun_datalen < alloc_len) { 9524 ctsio->residual = alloc_len - lun_datalen; 9525 ctsio->kern_data_len = lun_datalen; 9526 ctsio->kern_total_len = lun_datalen; 9527 } else { 9528 ctsio->residual = 0; 9529 ctsio->kern_data_len = alloc_len; 9530 ctsio->kern_total_len = alloc_len; 9531 } 9532 ctsio->kern_data_resid = 0; 9533 ctsio->kern_rel_offset = 0; 9534 ctsio->kern_sg_entries = 0; 9535 9536 /* 9537 * We set this to the actual data length, regardless of how much 9538 * space we actually have to return results. If the user looks at 9539 * this value, he'll know whether or not he allocated enough space 9540 * and reissue the command if necessary. We don't support well 9541 * known logical units, so if the user asks for that, return none. 9542 */ 9543 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9544 9545 /* 9546 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9547 * this request. 9548 */ 9549 ctsio->scsi_status = SCSI_STATUS_OK; 9550 9551 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9552 ctsio->be_move_done = ctl_config_move_done; 9553 ctl_datamove((union ctl_io *)ctsio); 9554 9555 return (retval); 9556 } 9557 9558 int 9559 ctl_request_sense(struct ctl_scsiio *ctsio) 9560 { 9561 struct scsi_request_sense *cdb; 9562 struct scsi_sense_data *sense_ptr; 9563 struct ctl_lun *lun; 9564 uint32_t initidx; 9565 int have_error; 9566 scsi_sense_data_type sense_format; 9567 9568 cdb = (struct scsi_request_sense *)ctsio->cdb; 9569 9570 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9571 9572 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9573 9574 /* 9575 * Determine which sense format the user wants. 9576 */ 9577 if (cdb->byte2 & SRS_DESC) 9578 sense_format = SSD_TYPE_DESC; 9579 else 9580 sense_format = SSD_TYPE_FIXED; 9581 9582 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9583 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9584 ctsio->kern_sg_entries = 0; 9585 9586 /* 9587 * struct scsi_sense_data, which is currently set to 256 bytes, is 9588 * larger than the largest allowed value for the length field in the 9589 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9590 */ 9591 ctsio->residual = 0; 9592 ctsio->kern_data_len = cdb->length; 9593 ctsio->kern_total_len = cdb->length; 9594 9595 ctsio->kern_data_resid = 0; 9596 ctsio->kern_rel_offset = 0; 9597 ctsio->kern_sg_entries = 0; 9598 9599 /* 9600 * If we don't have a LUN, we don't have any pending sense. 9601 */ 9602 if (lun == NULL) 9603 goto no_sense; 9604 9605 have_error = 0; 9606 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9607 /* 9608 * Check for pending sense, and then for pending unit attentions. 9609 * Pending sense gets returned first, then pending unit attentions. 9610 */ 9611 mtx_lock(&lun->lun_lock); 9612 #ifdef CTL_WITH_CA 9613 if (ctl_is_set(lun->have_ca, initidx)) { 9614 scsi_sense_data_type stored_format; 9615 9616 /* 9617 * Check to see which sense format was used for the stored 9618 * sense data. 9619 */ 9620 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9621 9622 /* 9623 * If the user requested a different sense format than the 9624 * one we stored, then we need to convert it to the other 9625 * format. If we're going from descriptor to fixed format 9626 * sense data, we may lose things in translation, depending 9627 * on what options were used. 9628 * 9629 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9630 * for some reason we'll just copy it out as-is. 9631 */ 9632 if ((stored_format == SSD_TYPE_FIXED) 9633 && (sense_format == SSD_TYPE_DESC)) 9634 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9635 &lun->pending_sense[initidx], 9636 (struct scsi_sense_data_desc *)sense_ptr); 9637 else if ((stored_format == SSD_TYPE_DESC) 9638 && (sense_format == SSD_TYPE_FIXED)) 9639 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9640 &lun->pending_sense[initidx], 9641 (struct scsi_sense_data_fixed *)sense_ptr); 9642 else 9643 memcpy(sense_ptr, &lun->pending_sense[initidx], 9644 ctl_min(sizeof(*sense_ptr), 9645 sizeof(lun->pending_sense[initidx]))); 9646 9647 ctl_clear_mask(lun->have_ca, initidx); 9648 have_error = 1; 9649 } else 9650 #endif 9651 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9652 ctl_ua_type ua_type; 9653 9654 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9655 sense_ptr, sense_format); 9656 if (ua_type != CTL_UA_NONE) 9657 have_error = 1; 9658 } 9659 mtx_unlock(&lun->lun_lock); 9660 9661 /* 9662 * We already have a pending error, return it. 9663 */ 9664 if (have_error != 0) { 9665 /* 9666 * We report the SCSI status as OK, since the status of the 9667 * request sense command itself is OK. 9668 */ 9669 ctsio->scsi_status = SCSI_STATUS_OK; 9670 9671 /* 9672 * We report 0 for the sense length, because we aren't doing 9673 * autosense in this case. We're reporting sense as 9674 * parameter data. 9675 */ 9676 ctsio->sense_len = 0; 9677 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9678 ctsio->be_move_done = ctl_config_move_done; 9679 ctl_datamove((union ctl_io *)ctsio); 9680 9681 return (CTL_RETVAL_COMPLETE); 9682 } 9683 9684 no_sense: 9685 9686 /* 9687 * No sense information to report, so we report that everything is 9688 * okay. 9689 */ 9690 ctl_set_sense_data(sense_ptr, 9691 lun, 9692 sense_format, 9693 /*current_error*/ 1, 9694 /*sense_key*/ SSD_KEY_NO_SENSE, 9695 /*asc*/ 0x00, 9696 /*ascq*/ 0x00, 9697 SSD_ELEM_NONE); 9698 9699 ctsio->scsi_status = SCSI_STATUS_OK; 9700 9701 /* 9702 * We report 0 for the sense length, because we aren't doing 9703 * autosense in this case. We're reporting sense as parameter data. 9704 */ 9705 ctsio->sense_len = 0; 9706 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9707 ctsio->be_move_done = ctl_config_move_done; 9708 ctl_datamove((union ctl_io *)ctsio); 9709 9710 return (CTL_RETVAL_COMPLETE); 9711 } 9712 9713 int 9714 ctl_tur(struct ctl_scsiio *ctsio) 9715 { 9716 struct ctl_lun *lun; 9717 9718 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9719 9720 CTL_DEBUG_PRINT(("ctl_tur\n")); 9721 9722 if (lun == NULL) 9723 return (EINVAL); 9724 9725 ctsio->scsi_status = SCSI_STATUS_OK; 9726 ctsio->io_hdr.status = CTL_SUCCESS; 9727 9728 ctl_done((union ctl_io *)ctsio); 9729 9730 return (CTL_RETVAL_COMPLETE); 9731 } 9732 9733 #ifdef notyet 9734 static int 9735 ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9736 { 9737 9738 } 9739 #endif 9740 9741 static int 9742 ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9743 { 9744 struct scsi_vpd_supported_pages *pages; 9745 int sup_page_size; 9746 struct ctl_lun *lun; 9747 9748 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9749 9750 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9751 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9752 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9753 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9754 ctsio->kern_sg_entries = 0; 9755 9756 if (sup_page_size < alloc_len) { 9757 ctsio->residual = alloc_len - sup_page_size; 9758 ctsio->kern_data_len = sup_page_size; 9759 ctsio->kern_total_len = sup_page_size; 9760 } else { 9761 ctsio->residual = 0; 9762 ctsio->kern_data_len = alloc_len; 9763 ctsio->kern_total_len = alloc_len; 9764 } 9765 ctsio->kern_data_resid = 0; 9766 ctsio->kern_rel_offset = 0; 9767 ctsio->kern_sg_entries = 0; 9768 9769 /* 9770 * The control device is always connected. The disk device, on the 9771 * other hand, may not be online all the time. Need to change this 9772 * to figure out whether the disk device is actually online or not. 9773 */ 9774 if (lun != NULL) 9775 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9776 lun->be_lun->lun_type; 9777 else 9778 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9779 9780 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9781 /* Supported VPD pages */ 9782 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9783 /* Serial Number */ 9784 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9785 /* Device Identification */ 9786 pages->page_list[2] = SVPD_DEVICE_ID; 9787 /* Extended INQUIRY Data */ 9788 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9789 /* Mode Page Policy */ 9790 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9791 /* SCSI Ports */ 9792 pages->page_list[5] = SVPD_SCSI_PORTS; 9793 /* Third-party Copy */ 9794 pages->page_list[6] = SVPD_SCSI_TPC; 9795 /* Block limits */ 9796 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9797 /* Block Device Characteristics */ 9798 pages->page_list[8] = SVPD_BDC; 9799 /* Logical Block Provisioning */ 9800 pages->page_list[9] = SVPD_LBP; 9801 9802 ctsio->scsi_status = SCSI_STATUS_OK; 9803 9804 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9805 ctsio->be_move_done = ctl_config_move_done; 9806 ctl_datamove((union ctl_io *)ctsio); 9807 9808 return (CTL_RETVAL_COMPLETE); 9809 } 9810 9811 static int 9812 ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9813 { 9814 struct scsi_vpd_unit_serial_number *sn_ptr; 9815 struct ctl_lun *lun; 9816 9817 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9818 9819 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9820 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9821 ctsio->kern_sg_entries = 0; 9822 9823 if (sizeof(*sn_ptr) < alloc_len) { 9824 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9825 ctsio->kern_data_len = sizeof(*sn_ptr); 9826 ctsio->kern_total_len = sizeof(*sn_ptr); 9827 } else { 9828 ctsio->residual = 0; 9829 ctsio->kern_data_len = alloc_len; 9830 ctsio->kern_total_len = alloc_len; 9831 } 9832 ctsio->kern_data_resid = 0; 9833 ctsio->kern_rel_offset = 0; 9834 ctsio->kern_sg_entries = 0; 9835 9836 /* 9837 * The control device is always connected. The disk device, on the 9838 * other hand, may not be online all the time. Need to change this 9839 * to figure out whether the disk device is actually online or not. 9840 */ 9841 if (lun != NULL) 9842 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9843 lun->be_lun->lun_type; 9844 else 9845 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9846 9847 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9848 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9849 /* 9850 * If we don't have a LUN, we just leave the serial number as 9851 * all spaces. 9852 */ 9853 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9854 if (lun != NULL) { 9855 strncpy((char *)sn_ptr->serial_num, 9856 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9857 } 9858 ctsio->scsi_status = SCSI_STATUS_OK; 9859 9860 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9861 ctsio->be_move_done = ctl_config_move_done; 9862 ctl_datamove((union ctl_io *)ctsio); 9863 9864 return (CTL_RETVAL_COMPLETE); 9865 } 9866 9867 9868 static int 9869 ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9870 { 9871 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9872 struct ctl_lun *lun; 9873 int data_len; 9874 9875 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9876 9877 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9878 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9879 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9880 ctsio->kern_sg_entries = 0; 9881 9882 if (data_len < alloc_len) { 9883 ctsio->residual = alloc_len - data_len; 9884 ctsio->kern_data_len = data_len; 9885 ctsio->kern_total_len = data_len; 9886 } else { 9887 ctsio->residual = 0; 9888 ctsio->kern_data_len = alloc_len; 9889 ctsio->kern_total_len = alloc_len; 9890 } 9891 ctsio->kern_data_resid = 0; 9892 ctsio->kern_rel_offset = 0; 9893 ctsio->kern_sg_entries = 0; 9894 9895 /* 9896 * The control device is always connected. The disk device, on the 9897 * other hand, may not be online all the time. 9898 */ 9899 if (lun != NULL) 9900 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9901 lun->be_lun->lun_type; 9902 else 9903 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9904 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9905 eid_ptr->page_length = data_len - 4; 9906 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9907 eid_ptr->flags3 = SVPD_EID_V_SUP; 9908 9909 ctsio->scsi_status = SCSI_STATUS_OK; 9910 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9911 ctsio->be_move_done = ctl_config_move_done; 9912 ctl_datamove((union ctl_io *)ctsio); 9913 9914 return (CTL_RETVAL_COMPLETE); 9915 } 9916 9917 static int 9918 ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9919 { 9920 struct scsi_vpd_mode_page_policy *mpp_ptr; 9921 struct ctl_lun *lun; 9922 int data_len; 9923 9924 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9925 9926 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9927 sizeof(struct scsi_vpd_mode_page_policy_descr); 9928 9929 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9930 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9931 ctsio->kern_sg_entries = 0; 9932 9933 if (data_len < alloc_len) { 9934 ctsio->residual = alloc_len - data_len; 9935 ctsio->kern_data_len = data_len; 9936 ctsio->kern_total_len = data_len; 9937 } else { 9938 ctsio->residual = 0; 9939 ctsio->kern_data_len = alloc_len; 9940 ctsio->kern_total_len = alloc_len; 9941 } 9942 ctsio->kern_data_resid = 0; 9943 ctsio->kern_rel_offset = 0; 9944 ctsio->kern_sg_entries = 0; 9945 9946 /* 9947 * The control device is always connected. The disk device, on the 9948 * other hand, may not be online all the time. 9949 */ 9950 if (lun != NULL) 9951 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9952 lun->be_lun->lun_type; 9953 else 9954 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9955 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9956 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9957 mpp_ptr->descr[0].page_code = 0x3f; 9958 mpp_ptr->descr[0].subpage_code = 0xff; 9959 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9960 9961 ctsio->scsi_status = SCSI_STATUS_OK; 9962 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9963 ctsio->be_move_done = ctl_config_move_done; 9964 ctl_datamove((union ctl_io *)ctsio); 9965 9966 return (CTL_RETVAL_COMPLETE); 9967 } 9968 9969 static int 9970 ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9971 { 9972 struct scsi_vpd_device_id *devid_ptr; 9973 struct scsi_vpd_id_descriptor *desc; 9974 struct ctl_softc *ctl_softc; 9975 struct ctl_lun *lun; 9976 struct ctl_port *port; 9977 int data_len; 9978 uint8_t proto; 9979 9980 ctl_softc = control_softc; 9981 9982 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9983 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9984 9985 data_len = sizeof(struct scsi_vpd_device_id) + 9986 sizeof(struct scsi_vpd_id_descriptor) + 9987 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9988 sizeof(struct scsi_vpd_id_descriptor) + 9989 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9990 if (lun && lun->lun_devid) 9991 data_len += lun->lun_devid->len; 9992 if (port->port_devid) 9993 data_len += port->port_devid->len; 9994 if (port->target_devid) 9995 data_len += port->target_devid->len; 9996 9997 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9998 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9999 ctsio->kern_sg_entries = 0; 10000 10001 if (data_len < alloc_len) { 10002 ctsio->residual = alloc_len - data_len; 10003 ctsio->kern_data_len = data_len; 10004 ctsio->kern_total_len = data_len; 10005 } else { 10006 ctsio->residual = 0; 10007 ctsio->kern_data_len = alloc_len; 10008 ctsio->kern_total_len = alloc_len; 10009 } 10010 ctsio->kern_data_resid = 0; 10011 ctsio->kern_rel_offset = 0; 10012 ctsio->kern_sg_entries = 0; 10013 10014 /* 10015 * The control device is always connected. The disk device, on the 10016 * other hand, may not be online all the time. 10017 */ 10018 if (lun != NULL) 10019 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10020 lun->be_lun->lun_type; 10021 else 10022 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10023 devid_ptr->page_code = SVPD_DEVICE_ID; 10024 scsi_ulto2b(data_len - 4, devid_ptr->length); 10025 10026 if (port->port_type == CTL_PORT_FC) 10027 proto = SCSI_PROTO_FC << 4; 10028 else if (port->port_type == CTL_PORT_ISCSI) 10029 proto = SCSI_PROTO_ISCSI << 4; 10030 else 10031 proto = SCSI_PROTO_SPI << 4; 10032 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10033 10034 /* 10035 * We're using a LUN association here. i.e., this device ID is a 10036 * per-LUN identifier. 10037 */ 10038 if (lun && lun->lun_devid) { 10039 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10040 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10041 lun->lun_devid->len); 10042 } 10043 10044 /* 10045 * This is for the WWPN which is a port association. 10046 */ 10047 if (port->port_devid) { 10048 memcpy(desc, port->port_devid->data, port->port_devid->len); 10049 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10050 port->port_devid->len); 10051 } 10052 10053 /* 10054 * This is for the Relative Target Port(type 4h) identifier 10055 */ 10056 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10057 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10058 SVPD_ID_TYPE_RELTARG; 10059 desc->length = 4; 10060 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10061 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10062 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10063 10064 /* 10065 * This is for the Target Port Group(type 5h) identifier 10066 */ 10067 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10068 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10069 SVPD_ID_TYPE_TPORTGRP; 10070 desc->length = 4; 10071 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10072 &desc->identifier[2]); 10073 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10074 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10075 10076 /* 10077 * This is for the Target identifier 10078 */ 10079 if (port->target_devid) { 10080 memcpy(desc, port->target_devid->data, port->target_devid->len); 10081 } 10082 10083 ctsio->scsi_status = SCSI_STATUS_OK; 10084 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10085 ctsio->be_move_done = ctl_config_move_done; 10086 ctl_datamove((union ctl_io *)ctsio); 10087 10088 return (CTL_RETVAL_COMPLETE); 10089 } 10090 10091 static int 10092 ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10093 { 10094 struct ctl_softc *softc = control_softc; 10095 struct scsi_vpd_scsi_ports *sp; 10096 struct scsi_vpd_port_designation *pd; 10097 struct scsi_vpd_port_designation_cont *pdc; 10098 struct ctl_lun *lun; 10099 struct ctl_port *port; 10100 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10101 int num_target_port_groups, single; 10102 10103 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10104 10105 single = ctl_is_single; 10106 if (single) 10107 num_target_port_groups = 1; 10108 else 10109 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10110 num_target_ports = 0; 10111 iid_len = 0; 10112 id_len = 0; 10113 mtx_lock(&softc->ctl_lock); 10114 STAILQ_FOREACH(port, &softc->port_list, links) { 10115 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10116 continue; 10117 if (lun != NULL && 10118 ctl_map_lun_back(port->targ_port, lun->lun) >= 10119 CTL_MAX_LUNS) 10120 continue; 10121 num_target_ports++; 10122 if (port->init_devid) 10123 iid_len += port->init_devid->len; 10124 if (port->port_devid) 10125 id_len += port->port_devid->len; 10126 } 10127 mtx_unlock(&softc->ctl_lock); 10128 10129 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10130 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10131 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10132 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10133 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10134 ctsio->kern_sg_entries = 0; 10135 10136 if (data_len < alloc_len) { 10137 ctsio->residual = alloc_len - data_len; 10138 ctsio->kern_data_len = data_len; 10139 ctsio->kern_total_len = data_len; 10140 } else { 10141 ctsio->residual = 0; 10142 ctsio->kern_data_len = alloc_len; 10143 ctsio->kern_total_len = alloc_len; 10144 } 10145 ctsio->kern_data_resid = 0; 10146 ctsio->kern_rel_offset = 0; 10147 ctsio->kern_sg_entries = 0; 10148 10149 /* 10150 * The control device is always connected. The disk device, on the 10151 * other hand, may not be online all the time. Need to change this 10152 * to figure out whether the disk device is actually online or not. 10153 */ 10154 if (lun != NULL) 10155 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10156 lun->be_lun->lun_type; 10157 else 10158 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10159 10160 sp->page_code = SVPD_SCSI_PORTS; 10161 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10162 sp->page_length); 10163 pd = &sp->design[0]; 10164 10165 mtx_lock(&softc->ctl_lock); 10166 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10167 pg = 0; 10168 else 10169 pg = 1; 10170 for (g = 0; g < num_target_port_groups; g++) { 10171 STAILQ_FOREACH(port, &softc->port_list, links) { 10172 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10173 continue; 10174 if (lun != NULL && 10175 ctl_map_lun_back(port->targ_port, lun->lun) >= 10176 CTL_MAX_LUNS) 10177 continue; 10178 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10179 scsi_ulto2b(p, pd->relative_port_id); 10180 if (port->init_devid && g == pg) { 10181 iid_len = port->init_devid->len; 10182 memcpy(pd->initiator_transportid, 10183 port->init_devid->data, port->init_devid->len); 10184 } else 10185 iid_len = 0; 10186 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10187 pdc = (struct scsi_vpd_port_designation_cont *) 10188 (&pd->initiator_transportid[iid_len]); 10189 if (port->port_devid && g == pg) { 10190 id_len = port->port_devid->len; 10191 memcpy(pdc->target_port_descriptors, 10192 port->port_devid->data, port->port_devid->len); 10193 } else 10194 id_len = 0; 10195 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10196 pd = (struct scsi_vpd_port_designation *) 10197 ((uint8_t *)pdc->target_port_descriptors + id_len); 10198 } 10199 } 10200 mtx_unlock(&softc->ctl_lock); 10201 10202 ctsio->scsi_status = SCSI_STATUS_OK; 10203 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10204 ctsio->be_move_done = ctl_config_move_done; 10205 ctl_datamove((union ctl_io *)ctsio); 10206 10207 return (CTL_RETVAL_COMPLETE); 10208 } 10209 10210 static int 10211 ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10212 { 10213 struct scsi_vpd_block_limits *bl_ptr; 10214 struct ctl_lun *lun; 10215 int bs; 10216 10217 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10218 10219 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10220 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10221 ctsio->kern_sg_entries = 0; 10222 10223 if (sizeof(*bl_ptr) < alloc_len) { 10224 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10225 ctsio->kern_data_len = sizeof(*bl_ptr); 10226 ctsio->kern_total_len = sizeof(*bl_ptr); 10227 } else { 10228 ctsio->residual = 0; 10229 ctsio->kern_data_len = alloc_len; 10230 ctsio->kern_total_len = alloc_len; 10231 } 10232 ctsio->kern_data_resid = 0; 10233 ctsio->kern_rel_offset = 0; 10234 ctsio->kern_sg_entries = 0; 10235 10236 /* 10237 * The control device is always connected. The disk device, on the 10238 * other hand, may not be online all the time. Need to change this 10239 * to figure out whether the disk device is actually online or not. 10240 */ 10241 if (lun != NULL) 10242 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10243 lun->be_lun->lun_type; 10244 else 10245 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10246 10247 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10248 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10249 bl_ptr->max_cmp_write_len = 0xff; 10250 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10251 if (lun != NULL) { 10252 bs = lun->be_lun->blocksize; 10253 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10254 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10255 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10256 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10257 if (lun->be_lun->pblockexp != 0) { 10258 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10259 bl_ptr->opt_unmap_grain); 10260 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10261 bl_ptr->unmap_grain_align); 10262 } 10263 } 10264 scsi_ulto4b(lun->be_lun->atomicblock, 10265 bl_ptr->max_atomic_transfer_length); 10266 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10267 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10268 } 10269 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10270 10271 ctsio->scsi_status = SCSI_STATUS_OK; 10272 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10273 ctsio->be_move_done = ctl_config_move_done; 10274 ctl_datamove((union ctl_io *)ctsio); 10275 10276 return (CTL_RETVAL_COMPLETE); 10277 } 10278 10279 static int 10280 ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10281 { 10282 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10283 struct ctl_lun *lun; 10284 10285 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10286 10287 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10288 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10289 ctsio->kern_sg_entries = 0; 10290 10291 if (sizeof(*bdc_ptr) < alloc_len) { 10292 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10293 ctsio->kern_data_len = sizeof(*bdc_ptr); 10294 ctsio->kern_total_len = sizeof(*bdc_ptr); 10295 } else { 10296 ctsio->residual = 0; 10297 ctsio->kern_data_len = alloc_len; 10298 ctsio->kern_total_len = alloc_len; 10299 } 10300 ctsio->kern_data_resid = 0; 10301 ctsio->kern_rel_offset = 0; 10302 ctsio->kern_sg_entries = 0; 10303 10304 /* 10305 * The control device is always connected. The disk device, on the 10306 * other hand, may not be online all the time. Need to change this 10307 * to figure out whether the disk device is actually online or not. 10308 */ 10309 if (lun != NULL) 10310 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10311 lun->be_lun->lun_type; 10312 else 10313 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10314 bdc_ptr->page_code = SVPD_BDC; 10315 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10316 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10317 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10318 10319 ctsio->scsi_status = SCSI_STATUS_OK; 10320 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10321 ctsio->be_move_done = ctl_config_move_done; 10322 ctl_datamove((union ctl_io *)ctsio); 10323 10324 return (CTL_RETVAL_COMPLETE); 10325 } 10326 10327 static int 10328 ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10329 { 10330 struct scsi_vpd_logical_block_prov *lbp_ptr; 10331 struct ctl_lun *lun; 10332 10333 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10334 10335 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10336 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10337 ctsio->kern_sg_entries = 0; 10338 10339 if (sizeof(*lbp_ptr) < alloc_len) { 10340 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10341 ctsio->kern_data_len = sizeof(*lbp_ptr); 10342 ctsio->kern_total_len = sizeof(*lbp_ptr); 10343 } else { 10344 ctsio->residual = 0; 10345 ctsio->kern_data_len = alloc_len; 10346 ctsio->kern_total_len = alloc_len; 10347 } 10348 ctsio->kern_data_resid = 0; 10349 ctsio->kern_rel_offset = 0; 10350 ctsio->kern_sg_entries = 0; 10351 10352 /* 10353 * The control device is always connected. The disk device, on the 10354 * other hand, may not be online all the time. Need to change this 10355 * to figure out whether the disk device is actually online or not. 10356 */ 10357 if (lun != NULL) 10358 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10359 lun->be_lun->lun_type; 10360 else 10361 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10362 10363 lbp_ptr->page_code = SVPD_LBP; 10364 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10365 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10366 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10367 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10368 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10369 } 10370 10371 ctsio->scsi_status = SCSI_STATUS_OK; 10372 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10373 ctsio->be_move_done = ctl_config_move_done; 10374 ctl_datamove((union ctl_io *)ctsio); 10375 10376 return (CTL_RETVAL_COMPLETE); 10377 } 10378 10379 static int 10380 ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10381 { 10382 struct scsi_inquiry *cdb; 10383 struct ctl_lun *lun; 10384 int alloc_len, retval; 10385 10386 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10387 cdb = (struct scsi_inquiry *)ctsio->cdb; 10388 10389 retval = CTL_RETVAL_COMPLETE; 10390 10391 alloc_len = scsi_2btoul(cdb->length); 10392 10393 switch (cdb->page_code) { 10394 case SVPD_SUPPORTED_PAGES: 10395 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10396 break; 10397 case SVPD_UNIT_SERIAL_NUMBER: 10398 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10399 break; 10400 case SVPD_DEVICE_ID: 10401 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10402 break; 10403 case SVPD_EXTENDED_INQUIRY_DATA: 10404 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10405 break; 10406 case SVPD_MODE_PAGE_POLICY: 10407 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10408 break; 10409 case SVPD_SCSI_PORTS: 10410 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10411 break; 10412 case SVPD_SCSI_TPC: 10413 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10414 break; 10415 case SVPD_BLOCK_LIMITS: 10416 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10417 break; 10418 case SVPD_BDC: 10419 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10420 break; 10421 case SVPD_LBP: 10422 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10423 break; 10424 default: 10425 ctl_set_invalid_field(ctsio, 10426 /*sks_valid*/ 1, 10427 /*command*/ 1, 10428 /*field*/ 2, 10429 /*bit_valid*/ 0, 10430 /*bit*/ 0); 10431 ctl_done((union ctl_io *)ctsio); 10432 retval = CTL_RETVAL_COMPLETE; 10433 break; 10434 } 10435 10436 return (retval); 10437 } 10438 10439 static int 10440 ctl_inquiry_std(struct ctl_scsiio *ctsio) 10441 { 10442 struct scsi_inquiry_data *inq_ptr; 10443 struct scsi_inquiry *cdb; 10444 struct ctl_softc *ctl_softc; 10445 struct ctl_lun *lun; 10446 char *val; 10447 uint32_t alloc_len, data_len; 10448 ctl_port_type port_type; 10449 10450 ctl_softc = control_softc; 10451 10452 /* 10453 * Figure out whether we're talking to a Fibre Channel port or not. 10454 * We treat the ioctl front end, and any SCSI adapters, as packetized 10455 * SCSI front ends. 10456 */ 10457 port_type = ctl_softc->ctl_ports[ 10458 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10459 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10460 port_type = CTL_PORT_SCSI; 10461 10462 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10463 cdb = (struct scsi_inquiry *)ctsio->cdb; 10464 alloc_len = scsi_2btoul(cdb->length); 10465 10466 /* 10467 * We malloc the full inquiry data size here and fill it 10468 * in. If the user only asks for less, we'll give him 10469 * that much. 10470 */ 10471 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10472 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10473 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10474 ctsio->kern_sg_entries = 0; 10475 ctsio->kern_data_resid = 0; 10476 ctsio->kern_rel_offset = 0; 10477 10478 if (data_len < alloc_len) { 10479 ctsio->residual = alloc_len - data_len; 10480 ctsio->kern_data_len = data_len; 10481 ctsio->kern_total_len = data_len; 10482 } else { 10483 ctsio->residual = 0; 10484 ctsio->kern_data_len = alloc_len; 10485 ctsio->kern_total_len = alloc_len; 10486 } 10487 10488 /* 10489 * If we have a LUN configured, report it as connected. Otherwise, 10490 * report that it is offline or no device is supported, depending 10491 * on the value of inquiry_pq_no_lun. 10492 * 10493 * According to the spec (SPC-4 r34), the peripheral qualifier 10494 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10495 * 10496 * "A peripheral device having the specified peripheral device type 10497 * is not connected to this logical unit. However, the device 10498 * server is capable of supporting the specified peripheral device 10499 * type on this logical unit." 10500 * 10501 * According to the same spec, the peripheral qualifier 10502 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10503 * 10504 * "The device server is not capable of supporting a peripheral 10505 * device on this logical unit. For this peripheral qualifier the 10506 * peripheral device type shall be set to 1Fh. All other peripheral 10507 * device type values are reserved for this peripheral qualifier." 10508 * 10509 * Given the text, it would seem that we probably want to report that 10510 * the LUN is offline here. There is no LUN connected, but we can 10511 * support a LUN at the given LUN number. 10512 * 10513 * In the real world, though, it sounds like things are a little 10514 * different: 10515 * 10516 * - Linux, when presented with a LUN with the offline peripheral 10517 * qualifier, will create an sg driver instance for it. So when 10518 * you attach it to CTL, you wind up with a ton of sg driver 10519 * instances. (One for every LUN that Linux bothered to probe.) 10520 * Linux does this despite the fact that it issues a REPORT LUNs 10521 * to LUN 0 to get the inventory of supported LUNs. 10522 * 10523 * - There is other anecdotal evidence (from Emulex folks) about 10524 * arrays that use the offline peripheral qualifier for LUNs that 10525 * are on the "passive" path in an active/passive array. 10526 * 10527 * So the solution is provide a hopefully reasonable default 10528 * (return bad/no LUN) and allow the user to change the behavior 10529 * with a tunable/sysctl variable. 10530 */ 10531 if (lun != NULL) 10532 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10533 lun->be_lun->lun_type; 10534 else if (ctl_softc->inquiry_pq_no_lun == 0) 10535 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10536 else 10537 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10538 10539 /* RMB in byte 2 is 0 */ 10540 inq_ptr->version = SCSI_REV_SPC4; 10541 10542 /* 10543 * According to SAM-3, even if a device only supports a single 10544 * level of LUN addressing, it should still set the HISUP bit: 10545 * 10546 * 4.9.1 Logical unit numbers overview 10547 * 10548 * All logical unit number formats described in this standard are 10549 * hierarchical in structure even when only a single level in that 10550 * hierarchy is used. The HISUP bit shall be set to one in the 10551 * standard INQUIRY data (see SPC-2) when any logical unit number 10552 * format described in this standard is used. Non-hierarchical 10553 * formats are outside the scope of this standard. 10554 * 10555 * Therefore we set the HiSup bit here. 10556 * 10557 * The reponse format is 2, per SPC-3. 10558 */ 10559 inq_ptr->response_format = SID_HiSup | 2; 10560 10561 inq_ptr->additional_length = data_len - 10562 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10563 CTL_DEBUG_PRINT(("additional_length = %d\n", 10564 inq_ptr->additional_length)); 10565 10566 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10567 /* 16 bit addressing */ 10568 if (port_type == CTL_PORT_SCSI) 10569 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10570 /* XXX set the SID_MultiP bit here if we're actually going to 10571 respond on multiple ports */ 10572 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10573 10574 /* 16 bit data bus, synchronous transfers */ 10575 if (port_type == CTL_PORT_SCSI) 10576 inq_ptr->flags = SID_WBus16 | SID_Sync; 10577 /* 10578 * XXX KDM do we want to support tagged queueing on the control 10579 * device at all? 10580 */ 10581 if ((lun == NULL) 10582 || (lun->be_lun->lun_type != T_PROCESSOR)) 10583 inq_ptr->flags |= SID_CmdQue; 10584 /* 10585 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10586 * We have 8 bytes for the vendor name, and 16 bytes for the device 10587 * name and 4 bytes for the revision. 10588 */ 10589 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10590 "vendor")) == NULL) { 10591 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10592 } else { 10593 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10594 strncpy(inq_ptr->vendor, val, 10595 min(sizeof(inq_ptr->vendor), strlen(val))); 10596 } 10597 if (lun == NULL) { 10598 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10599 sizeof(inq_ptr->product)); 10600 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10601 switch (lun->be_lun->lun_type) { 10602 case T_DIRECT: 10603 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10604 sizeof(inq_ptr->product)); 10605 break; 10606 case T_PROCESSOR: 10607 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10608 sizeof(inq_ptr->product)); 10609 break; 10610 default: 10611 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10612 sizeof(inq_ptr->product)); 10613 break; 10614 } 10615 } else { 10616 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10617 strncpy(inq_ptr->product, val, 10618 min(sizeof(inq_ptr->product), strlen(val))); 10619 } 10620 10621 /* 10622 * XXX make this a macro somewhere so it automatically gets 10623 * incremented when we make changes. 10624 */ 10625 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10626 "revision")) == NULL) { 10627 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10628 } else { 10629 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10630 strncpy(inq_ptr->revision, val, 10631 min(sizeof(inq_ptr->revision), strlen(val))); 10632 } 10633 10634 /* 10635 * For parallel SCSI, we support double transition and single 10636 * transition clocking. We also support QAS (Quick Arbitration 10637 * and Selection) and Information Unit transfers on both the 10638 * control and array devices. 10639 */ 10640 if (port_type == CTL_PORT_SCSI) 10641 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10642 SID_SPI_IUS; 10643 10644 /* SAM-5 (no version claimed) */ 10645 scsi_ulto2b(0x00A0, inq_ptr->version1); 10646 /* SPC-4 (no version claimed) */ 10647 scsi_ulto2b(0x0460, inq_ptr->version2); 10648 if (port_type == CTL_PORT_FC) { 10649 /* FCP-2 ANSI INCITS.350:2003 */ 10650 scsi_ulto2b(0x0917, inq_ptr->version3); 10651 } else if (port_type == CTL_PORT_SCSI) { 10652 /* SPI-4 ANSI INCITS.362:200x */ 10653 scsi_ulto2b(0x0B56, inq_ptr->version3); 10654 } else if (port_type == CTL_PORT_ISCSI) { 10655 /* iSCSI (no version claimed) */ 10656 scsi_ulto2b(0x0960, inq_ptr->version3); 10657 } else if (port_type == CTL_PORT_SAS) { 10658 /* SAS (no version claimed) */ 10659 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10660 } 10661 10662 if (lun == NULL) { 10663 /* SBC-4 (no version claimed) */ 10664 scsi_ulto2b(0x0600, inq_ptr->version4); 10665 } else { 10666 switch (lun->be_lun->lun_type) { 10667 case T_DIRECT: 10668 /* SBC-4 (no version claimed) */ 10669 scsi_ulto2b(0x0600, inq_ptr->version4); 10670 break; 10671 case T_PROCESSOR: 10672 default: 10673 break; 10674 } 10675 } 10676 10677 ctsio->scsi_status = SCSI_STATUS_OK; 10678 if (ctsio->kern_data_len > 0) { 10679 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10680 ctsio->be_move_done = ctl_config_move_done; 10681 ctl_datamove((union ctl_io *)ctsio); 10682 } else { 10683 ctsio->io_hdr.status = CTL_SUCCESS; 10684 ctl_done((union ctl_io *)ctsio); 10685 } 10686 10687 return (CTL_RETVAL_COMPLETE); 10688 } 10689 10690 int 10691 ctl_inquiry(struct ctl_scsiio *ctsio) 10692 { 10693 struct scsi_inquiry *cdb; 10694 int retval; 10695 10696 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10697 10698 cdb = (struct scsi_inquiry *)ctsio->cdb; 10699 if (cdb->byte2 & SI_EVPD) 10700 retval = ctl_inquiry_evpd(ctsio); 10701 else if (cdb->page_code == 0) 10702 retval = ctl_inquiry_std(ctsio); 10703 else { 10704 ctl_set_invalid_field(ctsio, 10705 /*sks_valid*/ 1, 10706 /*command*/ 1, 10707 /*field*/ 2, 10708 /*bit_valid*/ 0, 10709 /*bit*/ 0); 10710 ctl_done((union ctl_io *)ctsio); 10711 return (CTL_RETVAL_COMPLETE); 10712 } 10713 10714 return (retval); 10715 } 10716 10717 /* 10718 * For known CDB types, parse the LBA and length. 10719 */ 10720 static int 10721 ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10722 { 10723 if (io->io_hdr.io_type != CTL_IO_SCSI) 10724 return (1); 10725 10726 switch (io->scsiio.cdb[0]) { 10727 case COMPARE_AND_WRITE: { 10728 struct scsi_compare_and_write *cdb; 10729 10730 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10731 10732 *lba = scsi_8btou64(cdb->addr); 10733 *len = cdb->length; 10734 break; 10735 } 10736 case READ_6: 10737 case WRITE_6: { 10738 struct scsi_rw_6 *cdb; 10739 10740 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10741 10742 *lba = scsi_3btoul(cdb->addr); 10743 /* only 5 bits are valid in the most significant address byte */ 10744 *lba &= 0x1fffff; 10745 *len = cdb->length; 10746 break; 10747 } 10748 case READ_10: 10749 case WRITE_10: { 10750 struct scsi_rw_10 *cdb; 10751 10752 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10753 10754 *lba = scsi_4btoul(cdb->addr); 10755 *len = scsi_2btoul(cdb->length); 10756 break; 10757 } 10758 case WRITE_VERIFY_10: { 10759 struct scsi_write_verify_10 *cdb; 10760 10761 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10762 10763 *lba = scsi_4btoul(cdb->addr); 10764 *len = scsi_2btoul(cdb->length); 10765 break; 10766 } 10767 case READ_12: 10768 case WRITE_12: { 10769 struct scsi_rw_12 *cdb; 10770 10771 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10772 10773 *lba = scsi_4btoul(cdb->addr); 10774 *len = scsi_4btoul(cdb->length); 10775 break; 10776 } 10777 case WRITE_VERIFY_12: { 10778 struct scsi_write_verify_12 *cdb; 10779 10780 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10781 10782 *lba = scsi_4btoul(cdb->addr); 10783 *len = scsi_4btoul(cdb->length); 10784 break; 10785 } 10786 case READ_16: 10787 case WRITE_16: 10788 case WRITE_ATOMIC_16: { 10789 struct scsi_rw_16 *cdb; 10790 10791 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10792 10793 *lba = scsi_8btou64(cdb->addr); 10794 *len = scsi_4btoul(cdb->length); 10795 break; 10796 } 10797 case WRITE_VERIFY_16: { 10798 struct scsi_write_verify_16 *cdb; 10799 10800 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10801 10802 *lba = scsi_8btou64(cdb->addr); 10803 *len = scsi_4btoul(cdb->length); 10804 break; 10805 } 10806 case WRITE_SAME_10: { 10807 struct scsi_write_same_10 *cdb; 10808 10809 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10810 10811 *lba = scsi_4btoul(cdb->addr); 10812 *len = scsi_2btoul(cdb->length); 10813 break; 10814 } 10815 case WRITE_SAME_16: { 10816 struct scsi_write_same_16 *cdb; 10817 10818 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10819 10820 *lba = scsi_8btou64(cdb->addr); 10821 *len = scsi_4btoul(cdb->length); 10822 break; 10823 } 10824 case VERIFY_10: { 10825 struct scsi_verify_10 *cdb; 10826 10827 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10828 10829 *lba = scsi_4btoul(cdb->addr); 10830 *len = scsi_2btoul(cdb->length); 10831 break; 10832 } 10833 case VERIFY_12: { 10834 struct scsi_verify_12 *cdb; 10835 10836 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10837 10838 *lba = scsi_4btoul(cdb->addr); 10839 *len = scsi_4btoul(cdb->length); 10840 break; 10841 } 10842 case VERIFY_16: { 10843 struct scsi_verify_16 *cdb; 10844 10845 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10846 10847 *lba = scsi_8btou64(cdb->addr); 10848 *len = scsi_4btoul(cdb->length); 10849 break; 10850 } 10851 case UNMAP: { 10852 *lba = 0; 10853 *len = UINT64_MAX; 10854 break; 10855 } 10856 default: 10857 return (1); 10858 break; /* NOTREACHED */ 10859 } 10860 10861 return (0); 10862 } 10863 10864 static ctl_action 10865 ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10866 { 10867 uint64_t endlba1, endlba2; 10868 10869 endlba1 = lba1 + len1 - 1; 10870 endlba2 = lba2 + len2 - 1; 10871 10872 if ((endlba1 < lba2) 10873 || (endlba2 < lba1)) 10874 return (CTL_ACTION_PASS); 10875 else 10876 return (CTL_ACTION_BLOCK); 10877 } 10878 10879 static int 10880 ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10881 { 10882 struct ctl_ptr_len_flags *ptrlen; 10883 struct scsi_unmap_desc *buf, *end, *range; 10884 uint64_t lba; 10885 uint32_t len; 10886 10887 /* If not UNMAP -- go other way. */ 10888 if (io->io_hdr.io_type != CTL_IO_SCSI || 10889 io->scsiio.cdb[0] != UNMAP) 10890 return (CTL_ACTION_ERROR); 10891 10892 /* If UNMAP without data -- block and wait for data. */ 10893 ptrlen = (struct ctl_ptr_len_flags *) 10894 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10895 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10896 ptrlen->ptr == NULL) 10897 return (CTL_ACTION_BLOCK); 10898 10899 /* UNMAP with data -- check for collision. */ 10900 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10901 end = buf + ptrlen->len / sizeof(*buf); 10902 for (range = buf; range < end; range++) { 10903 lba = scsi_8btou64(range->lba); 10904 len = scsi_4btoul(range->length); 10905 if ((lba < lba2 + len2) && (lba + len > lba2)) 10906 return (CTL_ACTION_BLOCK); 10907 } 10908 return (CTL_ACTION_PASS); 10909 } 10910 10911 static ctl_action 10912 ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10913 { 10914 uint64_t lba1, lba2; 10915 uint64_t len1, len2; 10916 int retval; 10917 10918 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10919 return (CTL_ACTION_ERROR); 10920 10921 retval = ctl_extent_check_unmap(io2, lba1, len1); 10922 if (retval != CTL_ACTION_ERROR) 10923 return (retval); 10924 10925 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10926 return (CTL_ACTION_ERROR); 10927 10928 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10929 } 10930 10931 static ctl_action 10932 ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10933 union ctl_io *ooa_io) 10934 { 10935 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10936 ctl_serialize_action *serialize_row; 10937 10938 /* 10939 * The initiator attempted multiple untagged commands at the same 10940 * time. Can't do that. 10941 */ 10942 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10943 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10944 && ((pending_io->io_hdr.nexus.targ_port == 10945 ooa_io->io_hdr.nexus.targ_port) 10946 && (pending_io->io_hdr.nexus.initid.id == 10947 ooa_io->io_hdr.nexus.initid.id)) 10948 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10949 return (CTL_ACTION_OVERLAP); 10950 10951 /* 10952 * The initiator attempted to send multiple tagged commands with 10953 * the same ID. (It's fine if different initiators have the same 10954 * tag ID.) 10955 * 10956 * Even if all of those conditions are true, we don't kill the I/O 10957 * if the command ahead of us has been aborted. We won't end up 10958 * sending it to the FETD, and it's perfectly legal to resend a 10959 * command with the same tag number as long as the previous 10960 * instance of this tag number has been aborted somehow. 10961 */ 10962 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10963 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10964 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10965 && ((pending_io->io_hdr.nexus.targ_port == 10966 ooa_io->io_hdr.nexus.targ_port) 10967 && (pending_io->io_hdr.nexus.initid.id == 10968 ooa_io->io_hdr.nexus.initid.id)) 10969 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10970 return (CTL_ACTION_OVERLAP_TAG); 10971 10972 /* 10973 * If we get a head of queue tag, SAM-3 says that we should 10974 * immediately execute it. 10975 * 10976 * What happens if this command would normally block for some other 10977 * reason? e.g. a request sense with a head of queue tag 10978 * immediately after a write. Normally that would block, but this 10979 * will result in its getting executed immediately... 10980 * 10981 * We currently return "pass" instead of "skip", so we'll end up 10982 * going through the rest of the queue to check for overlapped tags. 10983 * 10984 * XXX KDM check for other types of blockage first?? 10985 */ 10986 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10987 return (CTL_ACTION_PASS); 10988 10989 /* 10990 * Ordered tags have to block until all items ahead of them 10991 * have completed. If we get called with an ordered tag, we always 10992 * block, if something else is ahead of us in the queue. 10993 */ 10994 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10995 return (CTL_ACTION_BLOCK); 10996 10997 /* 10998 * Simple tags get blocked until all head of queue and ordered tags 10999 * ahead of them have completed. I'm lumping untagged commands in 11000 * with simple tags here. XXX KDM is that the right thing to do? 11001 */ 11002 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11003 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11004 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11005 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11006 return (CTL_ACTION_BLOCK); 11007 11008 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11009 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11010 11011 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11012 11013 switch (serialize_row[pending_entry->seridx]) { 11014 case CTL_SER_BLOCK: 11015 return (CTL_ACTION_BLOCK); 11016 case CTL_SER_EXTENT: 11017 return (ctl_extent_check(pending_io, ooa_io)); 11018 case CTL_SER_EXTENTOPT: 11019 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11020 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11021 return (ctl_extent_check(pending_io, ooa_io)); 11022 /* FALLTHROUGH */ 11023 case CTL_SER_PASS: 11024 return (CTL_ACTION_PASS); 11025 case CTL_SER_BLOCKOPT: 11026 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11027 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11028 return (CTL_ACTION_BLOCK); 11029 return (CTL_ACTION_PASS); 11030 case CTL_SER_SKIP: 11031 return (CTL_ACTION_SKIP); 11032 default: 11033 panic("invalid serialization value %d", 11034 serialize_row[pending_entry->seridx]); 11035 } 11036 11037 return (CTL_ACTION_ERROR); 11038 } 11039 11040 /* 11041 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11042 * Assumptions: 11043 * - pending_io is generally either incoming, or on the blocked queue 11044 * - starting I/O is the I/O we want to start the check with. 11045 */ 11046 static ctl_action 11047 ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11048 union ctl_io *starting_io) 11049 { 11050 union ctl_io *ooa_io; 11051 ctl_action action; 11052 11053 mtx_assert(&lun->lun_lock, MA_OWNED); 11054 11055 /* 11056 * Run back along the OOA queue, starting with the current 11057 * blocked I/O and going through every I/O before it on the 11058 * queue. If starting_io is NULL, we'll just end up returning 11059 * CTL_ACTION_PASS. 11060 */ 11061 for (ooa_io = starting_io; ooa_io != NULL; 11062 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11063 ooa_links)){ 11064 11065 /* 11066 * This routine just checks to see whether 11067 * cur_blocked is blocked by ooa_io, which is ahead 11068 * of it in the queue. It doesn't queue/dequeue 11069 * cur_blocked. 11070 */ 11071 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11072 switch (action) { 11073 case CTL_ACTION_BLOCK: 11074 case CTL_ACTION_OVERLAP: 11075 case CTL_ACTION_OVERLAP_TAG: 11076 case CTL_ACTION_SKIP: 11077 case CTL_ACTION_ERROR: 11078 return (action); 11079 break; /* NOTREACHED */ 11080 case CTL_ACTION_PASS: 11081 break; 11082 default: 11083 panic("invalid action %d", action); 11084 break; /* NOTREACHED */ 11085 } 11086 } 11087 11088 return (CTL_ACTION_PASS); 11089 } 11090 11091 /* 11092 * Assumptions: 11093 * - An I/O has just completed, and has been removed from the per-LUN OOA 11094 * queue, so some items on the blocked queue may now be unblocked. 11095 */ 11096 static int 11097 ctl_check_blocked(struct ctl_lun *lun) 11098 { 11099 union ctl_io *cur_blocked, *next_blocked; 11100 11101 mtx_assert(&lun->lun_lock, MA_OWNED); 11102 11103 /* 11104 * Run forward from the head of the blocked queue, checking each 11105 * entry against the I/Os prior to it on the OOA queue to see if 11106 * there is still any blockage. 11107 * 11108 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11109 * with our removing a variable on it while it is traversing the 11110 * list. 11111 */ 11112 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11113 cur_blocked != NULL; cur_blocked = next_blocked) { 11114 union ctl_io *prev_ooa; 11115 ctl_action action; 11116 11117 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11118 blocked_links); 11119 11120 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11121 ctl_ooaq, ooa_links); 11122 11123 /* 11124 * If cur_blocked happens to be the first item in the OOA 11125 * queue now, prev_ooa will be NULL, and the action 11126 * returned will just be CTL_ACTION_PASS. 11127 */ 11128 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11129 11130 switch (action) { 11131 case CTL_ACTION_BLOCK: 11132 /* Nothing to do here, still blocked */ 11133 break; 11134 case CTL_ACTION_OVERLAP: 11135 case CTL_ACTION_OVERLAP_TAG: 11136 /* 11137 * This shouldn't happen! In theory we've already 11138 * checked this command for overlap... 11139 */ 11140 break; 11141 case CTL_ACTION_PASS: 11142 case CTL_ACTION_SKIP: { 11143 struct ctl_softc *softc; 11144 const struct ctl_cmd_entry *entry; 11145 uint32_t initidx; 11146 int isc_retval; 11147 11148 /* 11149 * The skip case shouldn't happen, this transaction 11150 * should have never made it onto the blocked queue. 11151 */ 11152 /* 11153 * This I/O is no longer blocked, we can remove it 11154 * from the blocked queue. Since this is a TAILQ 11155 * (doubly linked list), we can do O(1) removals 11156 * from any place on the list. 11157 */ 11158 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11159 blocked_links); 11160 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11161 11162 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11163 /* 11164 * Need to send IO back to original side to 11165 * run 11166 */ 11167 union ctl_ha_msg msg_info; 11168 11169 msg_info.hdr.original_sc = 11170 cur_blocked->io_hdr.original_sc; 11171 msg_info.hdr.serializing_sc = cur_blocked; 11172 msg_info.hdr.msg_type = CTL_MSG_R2R; 11173 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11174 &msg_info, sizeof(msg_info), 0)) > 11175 CTL_HA_STATUS_SUCCESS) { 11176 printf("CTL:Check Blocked error from " 11177 "ctl_ha_msg_send %d\n", 11178 isc_retval); 11179 } 11180 break; 11181 } 11182 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11183 softc = control_softc; 11184 11185 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11186 11187 /* 11188 * Check this I/O for LUN state changes that may 11189 * have happened while this command was blocked. 11190 * The LUN state may have been changed by a command 11191 * ahead of us in the queue, so we need to re-check 11192 * for any states that can be caused by SCSI 11193 * commands. 11194 */ 11195 if (ctl_scsiio_lun_check(softc, lun, entry, 11196 &cur_blocked->scsiio) == 0) { 11197 cur_blocked->io_hdr.flags |= 11198 CTL_FLAG_IS_WAS_ON_RTR; 11199 ctl_enqueue_rtr(cur_blocked); 11200 } else 11201 ctl_done(cur_blocked); 11202 break; 11203 } 11204 default: 11205 /* 11206 * This probably shouldn't happen -- we shouldn't 11207 * get CTL_ACTION_ERROR, or anything else. 11208 */ 11209 break; 11210 } 11211 } 11212 11213 return (CTL_RETVAL_COMPLETE); 11214 } 11215 11216 /* 11217 * This routine (with one exception) checks LUN flags that can be set by 11218 * commands ahead of us in the OOA queue. These flags have to be checked 11219 * when a command initially comes in, and when we pull a command off the 11220 * blocked queue and are preparing to execute it. The reason we have to 11221 * check these flags for commands on the blocked queue is that the LUN 11222 * state may have been changed by a command ahead of us while we're on the 11223 * blocked queue. 11224 * 11225 * Ordering is somewhat important with these checks, so please pay 11226 * careful attention to the placement of any new checks. 11227 */ 11228 static int 11229 ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11230 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11231 { 11232 int retval; 11233 uint32_t residx; 11234 11235 retval = 0; 11236 11237 mtx_assert(&lun->lun_lock, MA_OWNED); 11238 11239 /* 11240 * If this shelf is a secondary shelf controller, we have to reject 11241 * any media access commands. 11242 */ 11243 #if 0 11244 /* No longer needed for HA */ 11245 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11246 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11247 ctl_set_lun_standby(ctsio); 11248 retval = 1; 11249 goto bailout; 11250 } 11251 #endif 11252 11253 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11254 if (lun->flags & CTL_LUN_READONLY) { 11255 ctl_set_sense(ctsio, /*current_error*/ 1, 11256 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11257 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11258 retval = 1; 11259 goto bailout; 11260 } 11261 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11262 .eca_and_aen & SCP_SWP) != 0) { 11263 ctl_set_sense(ctsio, /*current_error*/ 1, 11264 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11265 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11266 retval = 1; 11267 goto bailout; 11268 } 11269 } 11270 11271 /* 11272 * Check for a reservation conflict. If this command isn't allowed 11273 * even on reserved LUNs, and if this initiator isn't the one who 11274 * reserved us, reject the command with a reservation conflict. 11275 */ 11276 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11277 if ((lun->flags & CTL_LUN_RESERVED) 11278 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11279 if (lun->res_idx != residx) { 11280 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11281 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11282 retval = 1; 11283 goto bailout; 11284 } 11285 } 11286 11287 if ((lun->flags & CTL_LUN_PR_RESERVED) 11288 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11289 /* 11290 * if we aren't registered or it's a res holder type 11291 * reservation and this isn't the res holder then set a 11292 * conflict. 11293 * NOTE: Commands which might be allowed on write exclusive 11294 * type reservations are checked in the particular command 11295 * for a conflict. Read and SSU are the only ones. 11296 */ 11297 if (lun->pr_keys[residx] == 0 11298 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11299 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11300 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11301 retval = 1; 11302 goto bailout; 11303 } 11304 11305 } 11306 11307 if ((lun->flags & CTL_LUN_OFFLINE) 11308 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11309 ctl_set_lun_not_ready(ctsio); 11310 retval = 1; 11311 goto bailout; 11312 } 11313 11314 /* 11315 * If the LUN is stopped, see if this particular command is allowed 11316 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11317 */ 11318 if ((lun->flags & CTL_LUN_STOPPED) 11319 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11320 /* "Logical unit not ready, initializing cmd. required" */ 11321 ctl_set_lun_stopped(ctsio); 11322 retval = 1; 11323 goto bailout; 11324 } 11325 11326 if ((lun->flags & CTL_LUN_INOPERABLE) 11327 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11328 /* "Medium format corrupted" */ 11329 ctl_set_medium_format_corrupted(ctsio); 11330 retval = 1; 11331 goto bailout; 11332 } 11333 11334 bailout: 11335 return (retval); 11336 11337 } 11338 11339 static void 11340 ctl_failover_io(union ctl_io *io, int have_lock) 11341 { 11342 ctl_set_busy(&io->scsiio); 11343 ctl_done(io); 11344 } 11345 11346 static void 11347 ctl_failover(void) 11348 { 11349 struct ctl_lun *lun; 11350 struct ctl_softc *ctl_softc; 11351 union ctl_io *next_io, *pending_io; 11352 union ctl_io *io; 11353 int lun_idx; 11354 int i; 11355 11356 ctl_softc = control_softc; 11357 11358 mtx_lock(&ctl_softc->ctl_lock); 11359 /* 11360 * Remove any cmds from the other SC from the rtr queue. These 11361 * will obviously only be for LUNs for which we're the primary. 11362 * We can't send status or get/send data for these commands. 11363 * Since they haven't been executed yet, we can just remove them. 11364 * We'll either abort them or delete them below, depending on 11365 * which HA mode we're in. 11366 */ 11367 #ifdef notyet 11368 mtx_lock(&ctl_softc->queue_lock); 11369 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11370 io != NULL; io = next_io) { 11371 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11372 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11373 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11374 ctl_io_hdr, links); 11375 } 11376 mtx_unlock(&ctl_softc->queue_lock); 11377 #endif 11378 11379 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11380 lun = ctl_softc->ctl_luns[lun_idx]; 11381 if (lun==NULL) 11382 continue; 11383 11384 /* 11385 * Processor LUNs are primary on both sides. 11386 * XXX will this always be true? 11387 */ 11388 if (lun->be_lun->lun_type == T_PROCESSOR) 11389 continue; 11390 11391 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11392 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11393 printf("FAILOVER: primary lun %d\n", lun_idx); 11394 /* 11395 * Remove all commands from the other SC. First from the 11396 * blocked queue then from the ooa queue. Once we have 11397 * removed them. Call ctl_check_blocked to see if there 11398 * is anything that can run. 11399 */ 11400 for (io = (union ctl_io *)TAILQ_FIRST( 11401 &lun->blocked_queue); io != NULL; io = next_io) { 11402 11403 next_io = (union ctl_io *)TAILQ_NEXT( 11404 &io->io_hdr, blocked_links); 11405 11406 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11407 TAILQ_REMOVE(&lun->blocked_queue, 11408 &io->io_hdr,blocked_links); 11409 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11410 TAILQ_REMOVE(&lun->ooa_queue, 11411 &io->io_hdr, ooa_links); 11412 11413 ctl_free_io(io); 11414 } 11415 } 11416 11417 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11418 io != NULL; io = next_io) { 11419 11420 next_io = (union ctl_io *)TAILQ_NEXT( 11421 &io->io_hdr, ooa_links); 11422 11423 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11424 11425 TAILQ_REMOVE(&lun->ooa_queue, 11426 &io->io_hdr, 11427 ooa_links); 11428 11429 ctl_free_io(io); 11430 } 11431 } 11432 ctl_check_blocked(lun); 11433 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11434 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11435 11436 printf("FAILOVER: primary lun %d\n", lun_idx); 11437 /* 11438 * Abort all commands from the other SC. We can't 11439 * send status back for them now. These should get 11440 * cleaned up when they are completed or come out 11441 * for a datamove operation. 11442 */ 11443 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11444 io != NULL; io = next_io) { 11445 next_io = (union ctl_io *)TAILQ_NEXT( 11446 &io->io_hdr, ooa_links); 11447 11448 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11449 io->io_hdr.flags |= CTL_FLAG_ABORT; 11450 } 11451 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11452 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11453 11454 printf("FAILOVER: secondary lun %d\n", lun_idx); 11455 11456 lun->flags |= CTL_LUN_PRIMARY_SC; 11457 11458 /* 11459 * We send all I/O that was sent to this controller 11460 * and redirected to the other side back with 11461 * busy status, and have the initiator retry it. 11462 * Figuring out how much data has been transferred, 11463 * etc. and picking up where we left off would be 11464 * very tricky. 11465 * 11466 * XXX KDM need to remove I/O from the blocked 11467 * queue as well! 11468 */ 11469 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11470 &lun->ooa_queue); pending_io != NULL; 11471 pending_io = next_io) { 11472 11473 next_io = (union ctl_io *)TAILQ_NEXT( 11474 &pending_io->io_hdr, ooa_links); 11475 11476 pending_io->io_hdr.flags &= 11477 ~CTL_FLAG_SENT_2OTHER_SC; 11478 11479 if (pending_io->io_hdr.flags & 11480 CTL_FLAG_IO_ACTIVE) { 11481 pending_io->io_hdr.flags |= 11482 CTL_FLAG_FAILOVER; 11483 } else { 11484 ctl_set_busy(&pending_io->scsiio); 11485 ctl_done(pending_io); 11486 } 11487 } 11488 11489 /* 11490 * Build Unit Attention 11491 */ 11492 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11493 lun->pending_ua[i] |= 11494 CTL_UA_ASYM_ACC_CHANGE; 11495 } 11496 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11497 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11498 printf("FAILOVER: secondary lun %d\n", lun_idx); 11499 /* 11500 * if the first io on the OOA is not on the RtR queue 11501 * add it. 11502 */ 11503 lun->flags |= CTL_LUN_PRIMARY_SC; 11504 11505 pending_io = (union ctl_io *)TAILQ_FIRST( 11506 &lun->ooa_queue); 11507 if (pending_io==NULL) { 11508 printf("Nothing on OOA queue\n"); 11509 continue; 11510 } 11511 11512 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11513 if ((pending_io->io_hdr.flags & 11514 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11515 pending_io->io_hdr.flags |= 11516 CTL_FLAG_IS_WAS_ON_RTR; 11517 ctl_enqueue_rtr(pending_io); 11518 } 11519 #if 0 11520 else 11521 { 11522 printf("Tag 0x%04x is running\n", 11523 pending_io->scsiio.tag_num); 11524 } 11525 #endif 11526 11527 next_io = (union ctl_io *)TAILQ_NEXT( 11528 &pending_io->io_hdr, ooa_links); 11529 for (pending_io=next_io; pending_io != NULL; 11530 pending_io = next_io) { 11531 pending_io->io_hdr.flags &= 11532 ~CTL_FLAG_SENT_2OTHER_SC; 11533 next_io = (union ctl_io *)TAILQ_NEXT( 11534 &pending_io->io_hdr, ooa_links); 11535 if (pending_io->io_hdr.flags & 11536 CTL_FLAG_IS_WAS_ON_RTR) { 11537 #if 0 11538 printf("Tag 0x%04x is running\n", 11539 pending_io->scsiio.tag_num); 11540 #endif 11541 continue; 11542 } 11543 11544 switch (ctl_check_ooa(lun, pending_io, 11545 (union ctl_io *)TAILQ_PREV( 11546 &pending_io->io_hdr, ctl_ooaq, 11547 ooa_links))) { 11548 11549 case CTL_ACTION_BLOCK: 11550 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11551 &pending_io->io_hdr, 11552 blocked_links); 11553 pending_io->io_hdr.flags |= 11554 CTL_FLAG_BLOCKED; 11555 break; 11556 case CTL_ACTION_PASS: 11557 case CTL_ACTION_SKIP: 11558 pending_io->io_hdr.flags |= 11559 CTL_FLAG_IS_WAS_ON_RTR; 11560 ctl_enqueue_rtr(pending_io); 11561 break; 11562 case CTL_ACTION_OVERLAP: 11563 ctl_set_overlapped_cmd( 11564 (struct ctl_scsiio *)pending_io); 11565 ctl_done(pending_io); 11566 break; 11567 case CTL_ACTION_OVERLAP_TAG: 11568 ctl_set_overlapped_tag( 11569 (struct ctl_scsiio *)pending_io, 11570 pending_io->scsiio.tag_num & 0xff); 11571 ctl_done(pending_io); 11572 break; 11573 case CTL_ACTION_ERROR: 11574 default: 11575 ctl_set_internal_failure( 11576 (struct ctl_scsiio *)pending_io, 11577 0, // sks_valid 11578 0); //retry count 11579 ctl_done(pending_io); 11580 break; 11581 } 11582 } 11583 11584 /* 11585 * Build Unit Attention 11586 */ 11587 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11588 lun->pending_ua[i] |= 11589 CTL_UA_ASYM_ACC_CHANGE; 11590 } 11591 } else { 11592 panic("Unhandled HA mode failover, LUN flags = %#x, " 11593 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11594 } 11595 } 11596 ctl_pause_rtr = 0; 11597 mtx_unlock(&ctl_softc->ctl_lock); 11598 } 11599 11600 static int 11601 ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11602 { 11603 struct ctl_lun *lun; 11604 const struct ctl_cmd_entry *entry; 11605 uint32_t initidx, targ_lun; 11606 int retval; 11607 11608 retval = 0; 11609 11610 lun = NULL; 11611 11612 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11613 if ((targ_lun < CTL_MAX_LUNS) 11614 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11615 lun = ctl_softc->ctl_luns[targ_lun]; 11616 /* 11617 * If the LUN is invalid, pretend that it doesn't exist. 11618 * It will go away as soon as all pending I/O has been 11619 * completed. 11620 */ 11621 if (lun->flags & CTL_LUN_DISABLED) { 11622 lun = NULL; 11623 } else { 11624 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11625 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11626 lun->be_lun; 11627 if (lun->be_lun->lun_type == T_PROCESSOR) { 11628 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11629 } 11630 11631 /* 11632 * Every I/O goes into the OOA queue for a 11633 * particular LUN, and stays there until completion. 11634 */ 11635 mtx_lock(&lun->lun_lock); 11636 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11637 ooa_links); 11638 } 11639 } else { 11640 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11641 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11642 } 11643 11644 /* Get command entry and return error if it is unsuppotyed. */ 11645 entry = ctl_validate_command(ctsio); 11646 if (entry == NULL) { 11647 if (lun) 11648 mtx_unlock(&lun->lun_lock); 11649 return (retval); 11650 } 11651 11652 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11653 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11654 11655 /* 11656 * Check to see whether we can send this command to LUNs that don't 11657 * exist. This should pretty much only be the case for inquiry 11658 * and request sense. Further checks, below, really require having 11659 * a LUN, so we can't really check the command anymore. Just put 11660 * it on the rtr queue. 11661 */ 11662 if (lun == NULL) { 11663 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11664 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11665 ctl_enqueue_rtr((union ctl_io *)ctsio); 11666 return (retval); 11667 } 11668 11669 ctl_set_unsupported_lun(ctsio); 11670 ctl_done((union ctl_io *)ctsio); 11671 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11672 return (retval); 11673 } else { 11674 /* 11675 * Make sure we support this particular command on this LUN. 11676 * e.g., we don't support writes to the control LUN. 11677 */ 11678 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11679 mtx_unlock(&lun->lun_lock); 11680 ctl_set_invalid_opcode(ctsio); 11681 ctl_done((union ctl_io *)ctsio); 11682 return (retval); 11683 } 11684 } 11685 11686 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11687 11688 #ifdef CTL_WITH_CA 11689 /* 11690 * If we've got a request sense, it'll clear the contingent 11691 * allegiance condition. Otherwise, if we have a CA condition for 11692 * this initiator, clear it, because it sent down a command other 11693 * than request sense. 11694 */ 11695 if ((ctsio->cdb[0] != REQUEST_SENSE) 11696 && (ctl_is_set(lun->have_ca, initidx))) 11697 ctl_clear_mask(lun->have_ca, initidx); 11698 #endif 11699 11700 /* 11701 * If the command has this flag set, it handles its own unit 11702 * attention reporting, we shouldn't do anything. Otherwise we 11703 * check for any pending unit attentions, and send them back to the 11704 * initiator. We only do this when a command initially comes in, 11705 * not when we pull it off the blocked queue. 11706 * 11707 * According to SAM-3, section 5.3.2, the order that things get 11708 * presented back to the host is basically unit attentions caused 11709 * by some sort of reset event, busy status, reservation conflicts 11710 * or task set full, and finally any other status. 11711 * 11712 * One issue here is that some of the unit attentions we report 11713 * don't fall into the "reset" category (e.g. "reported luns data 11714 * has changed"). So reporting it here, before the reservation 11715 * check, may be technically wrong. I guess the only thing to do 11716 * would be to check for and report the reset events here, and then 11717 * check for the other unit attention types after we check for a 11718 * reservation conflict. 11719 * 11720 * XXX KDM need to fix this 11721 */ 11722 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11723 ctl_ua_type ua_type; 11724 11725 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11726 scsi_sense_data_type sense_format; 11727 11728 if (lun != NULL) 11729 sense_format = (lun->flags & 11730 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11731 SSD_TYPE_FIXED; 11732 else 11733 sense_format = SSD_TYPE_FIXED; 11734 11735 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11736 &ctsio->sense_data, sense_format); 11737 if (ua_type != CTL_UA_NONE) { 11738 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11739 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11740 CTL_AUTOSENSE; 11741 ctsio->sense_len = SSD_FULL_SIZE; 11742 mtx_unlock(&lun->lun_lock); 11743 ctl_done((union ctl_io *)ctsio); 11744 return (retval); 11745 } 11746 } 11747 } 11748 11749 11750 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11751 mtx_unlock(&lun->lun_lock); 11752 ctl_done((union ctl_io *)ctsio); 11753 return (retval); 11754 } 11755 11756 /* 11757 * XXX CHD this is where we want to send IO to other side if 11758 * this LUN is secondary on this SC. We will need to make a copy 11759 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11760 * the copy we send as FROM_OTHER. 11761 * We also need to stuff the address of the original IO so we can 11762 * find it easily. Something similar will need be done on the other 11763 * side so when we are done we can find the copy. 11764 */ 11765 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11766 union ctl_ha_msg msg_info; 11767 int isc_retval; 11768 11769 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11770 11771 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11772 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11773 #if 0 11774 printf("1. ctsio %p\n", ctsio); 11775 #endif 11776 msg_info.hdr.serializing_sc = NULL; 11777 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11778 msg_info.scsi.tag_num = ctsio->tag_num; 11779 msg_info.scsi.tag_type = ctsio->tag_type; 11780 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11781 11782 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11783 11784 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11785 (void *)&msg_info, sizeof(msg_info), 0)) > 11786 CTL_HA_STATUS_SUCCESS) { 11787 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11788 isc_retval); 11789 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11790 } else { 11791 #if 0 11792 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11793 #endif 11794 } 11795 11796 /* 11797 * XXX KDM this I/O is off the incoming queue, but hasn't 11798 * been inserted on any other queue. We may need to come 11799 * up with a holding queue while we wait for serialization 11800 * so that we have an idea of what we're waiting for from 11801 * the other side. 11802 */ 11803 mtx_unlock(&lun->lun_lock); 11804 return (retval); 11805 } 11806 11807 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11808 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11809 ctl_ooaq, ooa_links))) { 11810 case CTL_ACTION_BLOCK: 11811 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11812 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11813 blocked_links); 11814 mtx_unlock(&lun->lun_lock); 11815 return (retval); 11816 case CTL_ACTION_PASS: 11817 case CTL_ACTION_SKIP: 11818 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11819 mtx_unlock(&lun->lun_lock); 11820 ctl_enqueue_rtr((union ctl_io *)ctsio); 11821 break; 11822 case CTL_ACTION_OVERLAP: 11823 mtx_unlock(&lun->lun_lock); 11824 ctl_set_overlapped_cmd(ctsio); 11825 ctl_done((union ctl_io *)ctsio); 11826 break; 11827 case CTL_ACTION_OVERLAP_TAG: 11828 mtx_unlock(&lun->lun_lock); 11829 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11830 ctl_done((union ctl_io *)ctsio); 11831 break; 11832 case CTL_ACTION_ERROR: 11833 default: 11834 mtx_unlock(&lun->lun_lock); 11835 ctl_set_internal_failure(ctsio, 11836 /*sks_valid*/ 0, 11837 /*retry_count*/ 0); 11838 ctl_done((union ctl_io *)ctsio); 11839 break; 11840 } 11841 return (retval); 11842 } 11843 11844 const struct ctl_cmd_entry * 11845 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11846 { 11847 const struct ctl_cmd_entry *entry; 11848 int service_action; 11849 11850 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11851 if (sa) 11852 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11853 if (entry->flags & CTL_CMD_FLAG_SA5) { 11854 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11855 entry = &((const struct ctl_cmd_entry *) 11856 entry->execute)[service_action]; 11857 } 11858 return (entry); 11859 } 11860 11861 const struct ctl_cmd_entry * 11862 ctl_validate_command(struct ctl_scsiio *ctsio) 11863 { 11864 const struct ctl_cmd_entry *entry; 11865 int i, sa; 11866 uint8_t diff; 11867 11868 entry = ctl_get_cmd_entry(ctsio, &sa); 11869 if (entry->execute == NULL) { 11870 if (sa) 11871 ctl_set_invalid_field(ctsio, 11872 /*sks_valid*/ 1, 11873 /*command*/ 1, 11874 /*field*/ 1, 11875 /*bit_valid*/ 1, 11876 /*bit*/ 4); 11877 else 11878 ctl_set_invalid_opcode(ctsio); 11879 ctl_done((union ctl_io *)ctsio); 11880 return (NULL); 11881 } 11882 KASSERT(entry->length > 0, 11883 ("Not defined length for command 0x%02x/0x%02x", 11884 ctsio->cdb[0], ctsio->cdb[1])); 11885 for (i = 1; i < entry->length; i++) { 11886 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11887 if (diff == 0) 11888 continue; 11889 ctl_set_invalid_field(ctsio, 11890 /*sks_valid*/ 1, 11891 /*command*/ 1, 11892 /*field*/ i, 11893 /*bit_valid*/ 1, 11894 /*bit*/ fls(diff) - 1); 11895 ctl_done((union ctl_io *)ctsio); 11896 return (NULL); 11897 } 11898 return (entry); 11899 } 11900 11901 static int 11902 ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11903 { 11904 11905 switch (lun_type) { 11906 case T_PROCESSOR: 11907 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11908 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11909 return (0); 11910 break; 11911 case T_DIRECT: 11912 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11913 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11914 return (0); 11915 break; 11916 default: 11917 return (0); 11918 } 11919 return (1); 11920 } 11921 11922 static int 11923 ctl_scsiio(struct ctl_scsiio *ctsio) 11924 { 11925 int retval; 11926 const struct ctl_cmd_entry *entry; 11927 11928 retval = CTL_RETVAL_COMPLETE; 11929 11930 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11931 11932 entry = ctl_get_cmd_entry(ctsio, NULL); 11933 11934 /* 11935 * If this I/O has been aborted, just send it straight to 11936 * ctl_done() without executing it. 11937 */ 11938 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11939 ctl_done((union ctl_io *)ctsio); 11940 goto bailout; 11941 } 11942 11943 /* 11944 * All the checks should have been handled by ctl_scsiio_precheck(). 11945 * We should be clear now to just execute the I/O. 11946 */ 11947 retval = entry->execute(ctsio); 11948 11949 bailout: 11950 return (retval); 11951 } 11952 11953 /* 11954 * Since we only implement one target right now, a bus reset simply resets 11955 * our single target. 11956 */ 11957 static int 11958 ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11959 { 11960 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11961 } 11962 11963 static int 11964 ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11965 ctl_ua_type ua_type) 11966 { 11967 struct ctl_lun *lun; 11968 int retval; 11969 11970 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11971 union ctl_ha_msg msg_info; 11972 11973 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11974 msg_info.hdr.nexus = io->io_hdr.nexus; 11975 if (ua_type==CTL_UA_TARG_RESET) 11976 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11977 else 11978 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11979 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11980 msg_info.hdr.original_sc = NULL; 11981 msg_info.hdr.serializing_sc = NULL; 11982 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11983 (void *)&msg_info, sizeof(msg_info), 0)) { 11984 } 11985 } 11986 retval = 0; 11987 11988 mtx_lock(&ctl_softc->ctl_lock); 11989 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11990 retval += ctl_lun_reset(lun, io, ua_type); 11991 mtx_unlock(&ctl_softc->ctl_lock); 11992 11993 return (retval); 11994 } 11995 11996 /* 11997 * The LUN should always be set. The I/O is optional, and is used to 11998 * distinguish between I/Os sent by this initiator, and by other 11999 * initiators. We set unit attention for initiators other than this one. 12000 * SAM-3 is vague on this point. It does say that a unit attention should 12001 * be established for other initiators when a LUN is reset (see section 12002 * 5.7.3), but it doesn't specifically say that the unit attention should 12003 * be established for this particular initiator when a LUN is reset. Here 12004 * is the relevant text, from SAM-3 rev 8: 12005 * 12006 * 5.7.2 When a SCSI initiator port aborts its own tasks 12007 * 12008 * When a SCSI initiator port causes its own task(s) to be aborted, no 12009 * notification that the task(s) have been aborted shall be returned to 12010 * the SCSI initiator port other than the completion response for the 12011 * command or task management function action that caused the task(s) to 12012 * be aborted and notification(s) associated with related effects of the 12013 * action (e.g., a reset unit attention condition). 12014 * 12015 * XXX KDM for now, we're setting unit attention for all initiators. 12016 */ 12017 static int 12018 ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12019 { 12020 union ctl_io *xio; 12021 #if 0 12022 uint32_t initindex; 12023 #endif 12024 int i; 12025 12026 mtx_lock(&lun->lun_lock); 12027 /* 12028 * Run through the OOA queue and abort each I/O. 12029 */ 12030 #if 0 12031 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12032 #endif 12033 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12034 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12035 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12036 } 12037 12038 /* 12039 * This version sets unit attention for every 12040 */ 12041 #if 0 12042 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12043 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12044 if (initindex == i) 12045 continue; 12046 lun->pending_ua[i] |= ua_type; 12047 } 12048 #endif 12049 12050 /* 12051 * A reset (any kind, really) clears reservations established with 12052 * RESERVE/RELEASE. It does not clear reservations established 12053 * with PERSISTENT RESERVE OUT, but we don't support that at the 12054 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12055 * reservations made with the RESERVE/RELEASE commands, because 12056 * those commands are obsolete in SPC-3. 12057 */ 12058 lun->flags &= ~CTL_LUN_RESERVED; 12059 12060 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12061 #ifdef CTL_WITH_CA 12062 ctl_clear_mask(lun->have_ca, i); 12063 #endif 12064 lun->pending_ua[i] |= ua_type; 12065 } 12066 mtx_unlock(&lun->lun_lock); 12067 12068 return (0); 12069 } 12070 12071 static void 12072 ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12073 int other_sc) 12074 { 12075 union ctl_io *xio; 12076 12077 mtx_assert(&lun->lun_lock, MA_OWNED); 12078 12079 /* 12080 * Run through the OOA queue and attempt to find the given I/O. 12081 * The target port, initiator ID, tag type and tag number have to 12082 * match the values that we got from the initiator. If we have an 12083 * untagged command to abort, simply abort the first untagged command 12084 * we come to. We only allow one untagged command at a time of course. 12085 */ 12086 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12087 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12088 12089 if ((targ_port == UINT32_MAX || 12090 targ_port == xio->io_hdr.nexus.targ_port) && 12091 (init_id == UINT32_MAX || 12092 init_id == xio->io_hdr.nexus.initid.id)) { 12093 if (targ_port != xio->io_hdr.nexus.targ_port || 12094 init_id != xio->io_hdr.nexus.initid.id) 12095 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12096 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12097 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12098 union ctl_ha_msg msg_info; 12099 12100 msg_info.hdr.nexus = xio->io_hdr.nexus; 12101 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12102 msg_info.task.tag_num = xio->scsiio.tag_num; 12103 msg_info.task.tag_type = xio->scsiio.tag_type; 12104 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12105 msg_info.hdr.original_sc = NULL; 12106 msg_info.hdr.serializing_sc = NULL; 12107 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12108 (void *)&msg_info, sizeof(msg_info), 0); 12109 } 12110 } 12111 } 12112 } 12113 12114 static int 12115 ctl_abort_task_set(union ctl_io *io) 12116 { 12117 struct ctl_softc *softc = control_softc; 12118 struct ctl_lun *lun; 12119 uint32_t targ_lun; 12120 12121 /* 12122 * Look up the LUN. 12123 */ 12124 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12125 mtx_lock(&softc->ctl_lock); 12126 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12127 lun = softc->ctl_luns[targ_lun]; 12128 else { 12129 mtx_unlock(&softc->ctl_lock); 12130 return (1); 12131 } 12132 12133 mtx_lock(&lun->lun_lock); 12134 mtx_unlock(&softc->ctl_lock); 12135 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12136 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12137 io->io_hdr.nexus.initid.id, 12138 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12139 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12140 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12141 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12142 } 12143 mtx_unlock(&lun->lun_lock); 12144 return (0); 12145 } 12146 12147 static int 12148 ctl_i_t_nexus_reset(union ctl_io *io) 12149 { 12150 struct ctl_softc *softc = control_softc; 12151 struct ctl_lun *lun; 12152 uint32_t initindex, residx; 12153 12154 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12155 residx = ctl_get_resindex(&io->io_hdr.nexus); 12156 mtx_lock(&softc->ctl_lock); 12157 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12158 mtx_lock(&lun->lun_lock); 12159 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12160 io->io_hdr.nexus.initid.id, 12161 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12162 #ifdef CTL_WITH_CA 12163 ctl_clear_mask(lun->have_ca, initindex); 12164 #endif 12165 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12166 lun->flags &= ~CTL_LUN_RESERVED; 12167 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12168 mtx_unlock(&lun->lun_lock); 12169 } 12170 mtx_unlock(&softc->ctl_lock); 12171 return (0); 12172 } 12173 12174 static int 12175 ctl_abort_task(union ctl_io *io) 12176 { 12177 union ctl_io *xio; 12178 struct ctl_lun *lun; 12179 struct ctl_softc *ctl_softc; 12180 #if 0 12181 struct sbuf sb; 12182 char printbuf[128]; 12183 #endif 12184 int found; 12185 uint32_t targ_lun; 12186 12187 ctl_softc = control_softc; 12188 found = 0; 12189 12190 /* 12191 * Look up the LUN. 12192 */ 12193 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12194 mtx_lock(&ctl_softc->ctl_lock); 12195 if ((targ_lun < CTL_MAX_LUNS) 12196 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12197 lun = ctl_softc->ctl_luns[targ_lun]; 12198 else { 12199 mtx_unlock(&ctl_softc->ctl_lock); 12200 return (1); 12201 } 12202 12203 #if 0 12204 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12205 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12206 #endif 12207 12208 mtx_lock(&lun->lun_lock); 12209 mtx_unlock(&ctl_softc->ctl_lock); 12210 /* 12211 * Run through the OOA queue and attempt to find the given I/O. 12212 * The target port, initiator ID, tag type and tag number have to 12213 * match the values that we got from the initiator. If we have an 12214 * untagged command to abort, simply abort the first untagged command 12215 * we come to. We only allow one untagged command at a time of course. 12216 */ 12217 #if 0 12218 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12219 #endif 12220 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12221 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12222 #if 0 12223 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12224 12225 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12226 lun->lun, xio->scsiio.tag_num, 12227 xio->scsiio.tag_type, 12228 (xio->io_hdr.blocked_links.tqe_prev 12229 == NULL) ? "" : " BLOCKED", 12230 (xio->io_hdr.flags & 12231 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12232 (xio->io_hdr.flags & 12233 CTL_FLAG_ABORT) ? " ABORT" : "", 12234 (xio->io_hdr.flags & 12235 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12236 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12237 sbuf_finish(&sb); 12238 printf("%s\n", sbuf_data(&sb)); 12239 #endif 12240 12241 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12242 && (xio->io_hdr.nexus.initid.id == 12243 io->io_hdr.nexus.initid.id)) { 12244 /* 12245 * If the abort says that the task is untagged, the 12246 * task in the queue must be untagged. Otherwise, 12247 * we just check to see whether the tag numbers 12248 * match. This is because the QLogic firmware 12249 * doesn't pass back the tag type in an abort 12250 * request. 12251 */ 12252 #if 0 12253 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12254 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12255 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12256 #endif 12257 /* 12258 * XXX KDM we've got problems with FC, because it 12259 * doesn't send down a tag type with aborts. So we 12260 * can only really go by the tag number... 12261 * This may cause problems with parallel SCSI. 12262 * Need to figure that out!! 12263 */ 12264 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12265 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12266 found = 1; 12267 if ((io->io_hdr.flags & 12268 CTL_FLAG_FROM_OTHER_SC) == 0 && 12269 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12270 union ctl_ha_msg msg_info; 12271 12272 io->io_hdr.flags |= 12273 CTL_FLAG_SENT_2OTHER_SC; 12274 msg_info.hdr.nexus = io->io_hdr.nexus; 12275 msg_info.task.task_action = 12276 CTL_TASK_ABORT_TASK; 12277 msg_info.task.tag_num = 12278 io->taskio.tag_num; 12279 msg_info.task.tag_type = 12280 io->taskio.tag_type; 12281 msg_info.hdr.msg_type = 12282 CTL_MSG_MANAGE_TASKS; 12283 msg_info.hdr.original_sc = NULL; 12284 msg_info.hdr.serializing_sc = NULL; 12285 #if 0 12286 printf("Sent Abort to other side\n"); 12287 #endif 12288 if (CTL_HA_STATUS_SUCCESS != 12289 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12290 (void *)&msg_info, 12291 sizeof(msg_info), 0)) { 12292 } 12293 } 12294 #if 0 12295 printf("ctl_abort_task: found I/O to abort\n"); 12296 #endif 12297 break; 12298 } 12299 } 12300 } 12301 mtx_unlock(&lun->lun_lock); 12302 12303 if (found == 0) { 12304 /* 12305 * This isn't really an error. It's entirely possible for 12306 * the abort and command completion to cross on the wire. 12307 * This is more of an informative/diagnostic error. 12308 */ 12309 #if 0 12310 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12311 "%d:%d:%d:%d tag %d type %d\n", 12312 io->io_hdr.nexus.initid.id, 12313 io->io_hdr.nexus.targ_port, 12314 io->io_hdr.nexus.targ_target.id, 12315 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12316 io->taskio.tag_type); 12317 #endif 12318 } 12319 return (0); 12320 } 12321 12322 static void 12323 ctl_run_task(union ctl_io *io) 12324 { 12325 struct ctl_softc *ctl_softc = control_softc; 12326 int retval = 1; 12327 const char *task_desc; 12328 12329 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12330 12331 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12332 ("ctl_run_task: Unextected io_type %d\n", 12333 io->io_hdr.io_type)); 12334 12335 task_desc = ctl_scsi_task_string(&io->taskio); 12336 if (task_desc != NULL) { 12337 #ifdef NEEDTOPORT 12338 csevent_log(CSC_CTL | CSC_SHELF_SW | 12339 CTL_TASK_REPORT, 12340 csevent_LogType_Trace, 12341 csevent_Severity_Information, 12342 csevent_AlertLevel_Green, 12343 csevent_FRU_Firmware, 12344 csevent_FRU_Unknown, 12345 "CTL: received task: %s",task_desc); 12346 #endif 12347 } else { 12348 #ifdef NEEDTOPORT 12349 csevent_log(CSC_CTL | CSC_SHELF_SW | 12350 CTL_TASK_REPORT, 12351 csevent_LogType_Trace, 12352 csevent_Severity_Information, 12353 csevent_AlertLevel_Green, 12354 csevent_FRU_Firmware, 12355 csevent_FRU_Unknown, 12356 "CTL: received unknown task " 12357 "type: %d (%#x)", 12358 io->taskio.task_action, 12359 io->taskio.task_action); 12360 #endif 12361 } 12362 switch (io->taskio.task_action) { 12363 case CTL_TASK_ABORT_TASK: 12364 retval = ctl_abort_task(io); 12365 break; 12366 case CTL_TASK_ABORT_TASK_SET: 12367 case CTL_TASK_CLEAR_TASK_SET: 12368 retval = ctl_abort_task_set(io); 12369 break; 12370 case CTL_TASK_CLEAR_ACA: 12371 break; 12372 case CTL_TASK_I_T_NEXUS_RESET: 12373 retval = ctl_i_t_nexus_reset(io); 12374 break; 12375 case CTL_TASK_LUN_RESET: { 12376 struct ctl_lun *lun; 12377 uint32_t targ_lun; 12378 12379 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12380 mtx_lock(&ctl_softc->ctl_lock); 12381 if ((targ_lun < CTL_MAX_LUNS) 12382 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12383 lun = ctl_softc->ctl_luns[targ_lun]; 12384 else { 12385 mtx_unlock(&ctl_softc->ctl_lock); 12386 retval = 1; 12387 break; 12388 } 12389 12390 if (!(io->io_hdr.flags & 12391 CTL_FLAG_FROM_OTHER_SC)) { 12392 union ctl_ha_msg msg_info; 12393 12394 io->io_hdr.flags |= 12395 CTL_FLAG_SENT_2OTHER_SC; 12396 msg_info.hdr.msg_type = 12397 CTL_MSG_MANAGE_TASKS; 12398 msg_info.hdr.nexus = io->io_hdr.nexus; 12399 msg_info.task.task_action = 12400 CTL_TASK_LUN_RESET; 12401 msg_info.hdr.original_sc = NULL; 12402 msg_info.hdr.serializing_sc = NULL; 12403 if (CTL_HA_STATUS_SUCCESS != 12404 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12405 (void *)&msg_info, 12406 sizeof(msg_info), 0)) { 12407 } 12408 } 12409 12410 retval = ctl_lun_reset(lun, io, 12411 CTL_UA_LUN_RESET); 12412 mtx_unlock(&ctl_softc->ctl_lock); 12413 break; 12414 } 12415 case CTL_TASK_TARGET_RESET: 12416 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12417 break; 12418 case CTL_TASK_BUS_RESET: 12419 retval = ctl_bus_reset(ctl_softc, io); 12420 break; 12421 case CTL_TASK_PORT_LOGIN: 12422 break; 12423 case CTL_TASK_PORT_LOGOUT: 12424 break; 12425 default: 12426 printf("ctl_run_task: got unknown task management event %d\n", 12427 io->taskio.task_action); 12428 break; 12429 } 12430 if (retval == 0) 12431 io->io_hdr.status = CTL_SUCCESS; 12432 else 12433 io->io_hdr.status = CTL_ERROR; 12434 ctl_done(io); 12435 } 12436 12437 /* 12438 * For HA operation. Handle commands that come in from the other 12439 * controller. 12440 */ 12441 static void 12442 ctl_handle_isc(union ctl_io *io) 12443 { 12444 int free_io; 12445 struct ctl_lun *lun; 12446 struct ctl_softc *ctl_softc; 12447 uint32_t targ_lun; 12448 12449 ctl_softc = control_softc; 12450 12451 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12452 lun = ctl_softc->ctl_luns[targ_lun]; 12453 12454 switch (io->io_hdr.msg_type) { 12455 case CTL_MSG_SERIALIZE: 12456 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12457 break; 12458 case CTL_MSG_R2R: { 12459 const struct ctl_cmd_entry *entry; 12460 12461 /* 12462 * This is only used in SER_ONLY mode. 12463 */ 12464 free_io = 0; 12465 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12466 mtx_lock(&lun->lun_lock); 12467 if (ctl_scsiio_lun_check(ctl_softc, lun, 12468 entry, (struct ctl_scsiio *)io) != 0) { 12469 mtx_unlock(&lun->lun_lock); 12470 ctl_done(io); 12471 break; 12472 } 12473 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12474 mtx_unlock(&lun->lun_lock); 12475 ctl_enqueue_rtr(io); 12476 break; 12477 } 12478 case CTL_MSG_FINISH_IO: 12479 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12480 free_io = 0; 12481 ctl_done(io); 12482 } else { 12483 free_io = 1; 12484 mtx_lock(&lun->lun_lock); 12485 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12486 ooa_links); 12487 ctl_check_blocked(lun); 12488 mtx_unlock(&lun->lun_lock); 12489 } 12490 break; 12491 case CTL_MSG_PERS_ACTION: 12492 ctl_hndl_per_res_out_on_other_sc( 12493 (union ctl_ha_msg *)&io->presio.pr_msg); 12494 free_io = 1; 12495 break; 12496 case CTL_MSG_BAD_JUJU: 12497 free_io = 0; 12498 ctl_done(io); 12499 break; 12500 case CTL_MSG_DATAMOVE: 12501 /* Only used in XFER mode */ 12502 free_io = 0; 12503 ctl_datamove_remote(io); 12504 break; 12505 case CTL_MSG_DATAMOVE_DONE: 12506 /* Only used in XFER mode */ 12507 free_io = 0; 12508 io->scsiio.be_move_done(io); 12509 break; 12510 default: 12511 free_io = 1; 12512 printf("%s: Invalid message type %d\n", 12513 __func__, io->io_hdr.msg_type); 12514 break; 12515 } 12516 if (free_io) 12517 ctl_free_io(io); 12518 12519 } 12520 12521 12522 /* 12523 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12524 * there is no match. 12525 */ 12526 static ctl_lun_error_pattern 12527 ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12528 { 12529 const struct ctl_cmd_entry *entry; 12530 ctl_lun_error_pattern filtered_pattern, pattern; 12531 12532 pattern = desc->error_pattern; 12533 12534 /* 12535 * XXX KDM we need more data passed into this function to match a 12536 * custom pattern, and we actually need to implement custom pattern 12537 * matching. 12538 */ 12539 if (pattern & CTL_LUN_PAT_CMD) 12540 return (CTL_LUN_PAT_CMD); 12541 12542 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12543 return (CTL_LUN_PAT_ANY); 12544 12545 entry = ctl_get_cmd_entry(ctsio, NULL); 12546 12547 filtered_pattern = entry->pattern & pattern; 12548 12549 /* 12550 * If the user requested specific flags in the pattern (e.g. 12551 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12552 * flags. 12553 * 12554 * If the user did not specify any flags, it doesn't matter whether 12555 * or not the command supports the flags. 12556 */ 12557 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12558 (pattern & ~CTL_LUN_PAT_MASK)) 12559 return (CTL_LUN_PAT_NONE); 12560 12561 /* 12562 * If the user asked for a range check, see if the requested LBA 12563 * range overlaps with this command's LBA range. 12564 */ 12565 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12566 uint64_t lba1; 12567 uint64_t len1; 12568 ctl_action action; 12569 int retval; 12570 12571 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12572 if (retval != 0) 12573 return (CTL_LUN_PAT_NONE); 12574 12575 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12576 desc->lba_range.len); 12577 /* 12578 * A "pass" means that the LBA ranges don't overlap, so 12579 * this doesn't match the user's range criteria. 12580 */ 12581 if (action == CTL_ACTION_PASS) 12582 return (CTL_LUN_PAT_NONE); 12583 } 12584 12585 return (filtered_pattern); 12586 } 12587 12588 static void 12589 ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12590 { 12591 struct ctl_error_desc *desc, *desc2; 12592 12593 mtx_assert(&lun->lun_lock, MA_OWNED); 12594 12595 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12596 ctl_lun_error_pattern pattern; 12597 /* 12598 * Check to see whether this particular command matches 12599 * the pattern in the descriptor. 12600 */ 12601 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12602 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12603 continue; 12604 12605 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12606 case CTL_LUN_INJ_ABORTED: 12607 ctl_set_aborted(&io->scsiio); 12608 break; 12609 case CTL_LUN_INJ_MEDIUM_ERR: 12610 ctl_set_medium_error(&io->scsiio); 12611 break; 12612 case CTL_LUN_INJ_UA: 12613 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12614 * OCCURRED */ 12615 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12616 break; 12617 case CTL_LUN_INJ_CUSTOM: 12618 /* 12619 * We're assuming the user knows what he is doing. 12620 * Just copy the sense information without doing 12621 * checks. 12622 */ 12623 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12624 ctl_min(sizeof(desc->custom_sense), 12625 sizeof(io->scsiio.sense_data))); 12626 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12627 io->scsiio.sense_len = SSD_FULL_SIZE; 12628 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12629 break; 12630 case CTL_LUN_INJ_NONE: 12631 default: 12632 /* 12633 * If this is an error injection type we don't know 12634 * about, clear the continuous flag (if it is set) 12635 * so it will get deleted below. 12636 */ 12637 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12638 break; 12639 } 12640 /* 12641 * By default, each error injection action is a one-shot 12642 */ 12643 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12644 continue; 12645 12646 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12647 12648 free(desc, M_CTL); 12649 } 12650 } 12651 12652 #ifdef CTL_IO_DELAY 12653 static void 12654 ctl_datamove_timer_wakeup(void *arg) 12655 { 12656 union ctl_io *io; 12657 12658 io = (union ctl_io *)arg; 12659 12660 ctl_datamove(io); 12661 } 12662 #endif /* CTL_IO_DELAY */ 12663 12664 void 12665 ctl_datamove(union ctl_io *io) 12666 { 12667 void (*fe_datamove)(union ctl_io *io); 12668 12669 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12670 12671 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12672 12673 #ifdef CTL_TIME_IO 12674 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12675 char str[256]; 12676 char path_str[64]; 12677 struct sbuf sb; 12678 12679 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12680 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12681 12682 sbuf_cat(&sb, path_str); 12683 switch (io->io_hdr.io_type) { 12684 case CTL_IO_SCSI: 12685 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12686 sbuf_printf(&sb, "\n"); 12687 sbuf_cat(&sb, path_str); 12688 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12689 io->scsiio.tag_num, io->scsiio.tag_type); 12690 break; 12691 case CTL_IO_TASK: 12692 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12693 "Tag Type: %d\n", io->taskio.task_action, 12694 io->taskio.tag_num, io->taskio.tag_type); 12695 break; 12696 default: 12697 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12698 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12699 break; 12700 } 12701 sbuf_cat(&sb, path_str); 12702 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12703 (intmax_t)time_uptime - io->io_hdr.start_time); 12704 sbuf_finish(&sb); 12705 printf("%s", sbuf_data(&sb)); 12706 } 12707 #endif /* CTL_TIME_IO */ 12708 12709 #ifdef CTL_IO_DELAY 12710 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12711 struct ctl_lun *lun; 12712 12713 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12714 12715 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12716 } else { 12717 struct ctl_lun *lun; 12718 12719 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12720 if ((lun != NULL) 12721 && (lun->delay_info.datamove_delay > 0)) { 12722 struct callout *callout; 12723 12724 callout = (struct callout *)&io->io_hdr.timer_bytes; 12725 callout_init(callout, /*mpsafe*/ 1); 12726 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12727 callout_reset(callout, 12728 lun->delay_info.datamove_delay * hz, 12729 ctl_datamove_timer_wakeup, io); 12730 if (lun->delay_info.datamove_type == 12731 CTL_DELAY_TYPE_ONESHOT) 12732 lun->delay_info.datamove_delay = 0; 12733 return; 12734 } 12735 } 12736 #endif 12737 12738 /* 12739 * This command has been aborted. Set the port status, so we fail 12740 * the data move. 12741 */ 12742 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12743 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12744 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12745 io->io_hdr.nexus.targ_port, 12746 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12747 io->io_hdr.nexus.targ_lun); 12748 io->io_hdr.port_status = 31337; 12749 /* 12750 * Note that the backend, in this case, will get the 12751 * callback in its context. In other cases it may get 12752 * called in the frontend's interrupt thread context. 12753 */ 12754 io->scsiio.be_move_done(io); 12755 return; 12756 } 12757 12758 /* 12759 * If we're in XFER mode and this I/O is from the other shelf 12760 * controller, we need to send the DMA to the other side to 12761 * actually transfer the data to/from the host. In serialize only 12762 * mode the transfer happens below CTL and ctl_datamove() is only 12763 * called on the machine that originally received the I/O. 12764 */ 12765 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12766 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12767 union ctl_ha_msg msg; 12768 uint32_t sg_entries_sent; 12769 int do_sg_copy; 12770 int i; 12771 12772 memset(&msg, 0, sizeof(msg)); 12773 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12774 msg.hdr.original_sc = io->io_hdr.original_sc; 12775 msg.hdr.serializing_sc = io; 12776 msg.hdr.nexus = io->io_hdr.nexus; 12777 msg.dt.flags = io->io_hdr.flags; 12778 /* 12779 * We convert everything into a S/G list here. We can't 12780 * pass by reference, only by value between controllers. 12781 * So we can't pass a pointer to the S/G list, only as many 12782 * S/G entries as we can fit in here. If it's possible for 12783 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12784 * then we need to break this up into multiple transfers. 12785 */ 12786 if (io->scsiio.kern_sg_entries == 0) { 12787 msg.dt.kern_sg_entries = 1; 12788 /* 12789 * If this is in cached memory, flush the cache 12790 * before we send the DMA request to the other 12791 * controller. We want to do this in either the 12792 * read or the write case. The read case is 12793 * straightforward. In the write case, we want to 12794 * make sure nothing is in the local cache that 12795 * could overwrite the DMAed data. 12796 */ 12797 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12798 /* 12799 * XXX KDM use bus_dmamap_sync() here. 12800 */ 12801 } 12802 12803 /* 12804 * Convert to a physical address if this is a 12805 * virtual address. 12806 */ 12807 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12808 msg.dt.sg_list[0].addr = 12809 io->scsiio.kern_data_ptr; 12810 } else { 12811 /* 12812 * XXX KDM use busdma here! 12813 */ 12814 #if 0 12815 msg.dt.sg_list[0].addr = (void *) 12816 vtophys(io->scsiio.kern_data_ptr); 12817 #endif 12818 } 12819 12820 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12821 do_sg_copy = 0; 12822 } else { 12823 struct ctl_sg_entry *sgl; 12824 12825 do_sg_copy = 1; 12826 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12827 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12828 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12829 /* 12830 * XXX KDM use bus_dmamap_sync() here. 12831 */ 12832 } 12833 } 12834 12835 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12836 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12837 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12838 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12839 msg.dt.sg_sequence = 0; 12840 12841 /* 12842 * Loop until we've sent all of the S/G entries. On the 12843 * other end, we'll recompose these S/G entries into one 12844 * contiguous list before passing it to the 12845 */ 12846 for (sg_entries_sent = 0; sg_entries_sent < 12847 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12848 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12849 sizeof(msg.dt.sg_list[0])), 12850 msg.dt.kern_sg_entries - sg_entries_sent); 12851 12852 if (do_sg_copy != 0) { 12853 struct ctl_sg_entry *sgl; 12854 int j; 12855 12856 sgl = (struct ctl_sg_entry *) 12857 io->scsiio.kern_data_ptr; 12858 /* 12859 * If this is in cached memory, flush the cache 12860 * before we send the DMA request to the other 12861 * controller. We want to do this in either 12862 * the * read or the write case. The read 12863 * case is straightforward. In the write 12864 * case, we want to make sure nothing is 12865 * in the local cache that could overwrite 12866 * the DMAed data. 12867 */ 12868 12869 for (i = sg_entries_sent, j = 0; 12870 i < msg.dt.cur_sg_entries; i++, j++) { 12871 if ((io->io_hdr.flags & 12872 CTL_FLAG_NO_DATASYNC) == 0) { 12873 /* 12874 * XXX KDM use bus_dmamap_sync() 12875 */ 12876 } 12877 if ((io->io_hdr.flags & 12878 CTL_FLAG_BUS_ADDR) == 0) { 12879 /* 12880 * XXX KDM use busdma. 12881 */ 12882 #if 0 12883 msg.dt.sg_list[j].addr =(void *) 12884 vtophys(sgl[i].addr); 12885 #endif 12886 } else { 12887 msg.dt.sg_list[j].addr = 12888 sgl[i].addr; 12889 } 12890 msg.dt.sg_list[j].len = sgl[i].len; 12891 } 12892 } 12893 12894 sg_entries_sent += msg.dt.cur_sg_entries; 12895 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12896 msg.dt.sg_last = 1; 12897 else 12898 msg.dt.sg_last = 0; 12899 12900 /* 12901 * XXX KDM drop and reacquire the lock here? 12902 */ 12903 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12904 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12905 /* 12906 * XXX do something here. 12907 */ 12908 } 12909 12910 msg.dt.sent_sg_entries = sg_entries_sent; 12911 } 12912 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12913 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12914 ctl_failover_io(io, /*have_lock*/ 0); 12915 12916 } else { 12917 12918 /* 12919 * Lookup the fe_datamove() function for this particular 12920 * front end. 12921 */ 12922 fe_datamove = 12923 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12924 12925 fe_datamove(io); 12926 } 12927 } 12928 12929 static void 12930 ctl_send_datamove_done(union ctl_io *io, int have_lock) 12931 { 12932 union ctl_ha_msg msg; 12933 int isc_status; 12934 12935 memset(&msg, 0, sizeof(msg)); 12936 12937 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12938 msg.hdr.original_sc = io; 12939 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12940 msg.hdr.nexus = io->io_hdr.nexus; 12941 msg.hdr.status = io->io_hdr.status; 12942 msg.scsi.tag_num = io->scsiio.tag_num; 12943 msg.scsi.tag_type = io->scsiio.tag_type; 12944 msg.scsi.scsi_status = io->scsiio.scsi_status; 12945 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12946 sizeof(io->scsiio.sense_data)); 12947 msg.scsi.sense_len = io->scsiio.sense_len; 12948 msg.scsi.sense_residual = io->scsiio.sense_residual; 12949 msg.scsi.fetd_status = io->io_hdr.port_status; 12950 msg.scsi.residual = io->scsiio.residual; 12951 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12952 12953 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12954 ctl_failover_io(io, /*have_lock*/ have_lock); 12955 return; 12956 } 12957 12958 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12959 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12960 /* XXX do something if this fails */ 12961 } 12962 12963 } 12964 12965 /* 12966 * The DMA to the remote side is done, now we need to tell the other side 12967 * we're done so it can continue with its data movement. 12968 */ 12969 static void 12970 ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12971 { 12972 union ctl_io *io; 12973 12974 io = rq->context; 12975 12976 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12977 printf("%s: ISC DMA write failed with error %d", __func__, 12978 rq->ret); 12979 ctl_set_internal_failure(&io->scsiio, 12980 /*sks_valid*/ 1, 12981 /*retry_count*/ rq->ret); 12982 } 12983 12984 ctl_dt_req_free(rq); 12985 12986 /* 12987 * In this case, we had to malloc the memory locally. Free it. 12988 */ 12989 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12990 int i; 12991 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12992 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12993 } 12994 /* 12995 * The data is in local and remote memory, so now we need to send 12996 * status (good or back) back to the other side. 12997 */ 12998 ctl_send_datamove_done(io, /*have_lock*/ 0); 12999 } 13000 13001 /* 13002 * We've moved the data from the host/controller into local memory. Now we 13003 * need to push it over to the remote controller's memory. 13004 */ 13005 static int 13006 ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13007 { 13008 int retval; 13009 13010 retval = 0; 13011 13012 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13013 ctl_datamove_remote_write_cb); 13014 13015 return (retval); 13016 } 13017 13018 static void 13019 ctl_datamove_remote_write(union ctl_io *io) 13020 { 13021 int retval; 13022 void (*fe_datamove)(union ctl_io *io); 13023 13024 /* 13025 * - Get the data from the host/HBA into local memory. 13026 * - DMA memory from the local controller to the remote controller. 13027 * - Send status back to the remote controller. 13028 */ 13029 13030 retval = ctl_datamove_remote_sgl_setup(io); 13031 if (retval != 0) 13032 return; 13033 13034 /* Switch the pointer over so the FETD knows what to do */ 13035 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13036 13037 /* 13038 * Use a custom move done callback, since we need to send completion 13039 * back to the other controller, not to the backend on this side. 13040 */ 13041 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13042 13043 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13044 13045 fe_datamove(io); 13046 13047 return; 13048 13049 } 13050 13051 static int 13052 ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13053 { 13054 #if 0 13055 char str[256]; 13056 char path_str[64]; 13057 struct sbuf sb; 13058 #endif 13059 13060 /* 13061 * In this case, we had to malloc the memory locally. Free it. 13062 */ 13063 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13064 int i; 13065 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13066 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13067 } 13068 13069 #if 0 13070 scsi_path_string(io, path_str, sizeof(path_str)); 13071 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13072 sbuf_cat(&sb, path_str); 13073 scsi_command_string(&io->scsiio, NULL, &sb); 13074 sbuf_printf(&sb, "\n"); 13075 sbuf_cat(&sb, path_str); 13076 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13077 io->scsiio.tag_num, io->scsiio.tag_type); 13078 sbuf_cat(&sb, path_str); 13079 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13080 io->io_hdr.flags, io->io_hdr.status); 13081 sbuf_finish(&sb); 13082 printk("%s", sbuf_data(&sb)); 13083 #endif 13084 13085 13086 /* 13087 * The read is done, now we need to send status (good or bad) back 13088 * to the other side. 13089 */ 13090 ctl_send_datamove_done(io, /*have_lock*/ 0); 13091 13092 return (0); 13093 } 13094 13095 static void 13096 ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13097 { 13098 union ctl_io *io; 13099 void (*fe_datamove)(union ctl_io *io); 13100 13101 io = rq->context; 13102 13103 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13104 printf("%s: ISC DMA read failed with error %d", __func__, 13105 rq->ret); 13106 ctl_set_internal_failure(&io->scsiio, 13107 /*sks_valid*/ 1, 13108 /*retry_count*/ rq->ret); 13109 } 13110 13111 ctl_dt_req_free(rq); 13112 13113 /* Switch the pointer over so the FETD knows what to do */ 13114 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13115 13116 /* 13117 * Use a custom move done callback, since we need to send completion 13118 * back to the other controller, not to the backend on this side. 13119 */ 13120 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13121 13122 /* XXX KDM add checks like the ones in ctl_datamove? */ 13123 13124 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13125 13126 fe_datamove(io); 13127 } 13128 13129 static int 13130 ctl_datamove_remote_sgl_setup(union ctl_io *io) 13131 { 13132 struct ctl_sg_entry *local_sglist, *remote_sglist; 13133 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13134 struct ctl_softc *softc; 13135 int retval; 13136 int i; 13137 13138 retval = 0; 13139 softc = control_softc; 13140 13141 local_sglist = io->io_hdr.local_sglist; 13142 local_dma_sglist = io->io_hdr.local_dma_sglist; 13143 remote_sglist = io->io_hdr.remote_sglist; 13144 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13145 13146 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13147 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13148 local_sglist[i].len = remote_sglist[i].len; 13149 13150 /* 13151 * XXX Detect the situation where the RS-level I/O 13152 * redirector on the other side has already read the 13153 * data off of the AOR RS on this side, and 13154 * transferred it to remote (mirror) memory on the 13155 * other side. Since we already have the data in 13156 * memory here, we just need to use it. 13157 * 13158 * XXX KDM this can probably be removed once we 13159 * get the cache device code in and take the 13160 * current AOR implementation out. 13161 */ 13162 #ifdef NEEDTOPORT 13163 if ((remote_sglist[i].addr >= 13164 (void *)vtophys(softc->mirr->addr)) 13165 && (remote_sglist[i].addr < 13166 ((void *)vtophys(softc->mirr->addr) + 13167 CacheMirrorOffset))) { 13168 local_sglist[i].addr = remote_sglist[i].addr - 13169 CacheMirrorOffset; 13170 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13171 CTL_FLAG_DATA_IN) 13172 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13173 } else { 13174 local_sglist[i].addr = remote_sglist[i].addr + 13175 CacheMirrorOffset; 13176 } 13177 #endif 13178 #if 0 13179 printf("%s: local %p, remote %p, len %d\n", 13180 __func__, local_sglist[i].addr, 13181 remote_sglist[i].addr, local_sglist[i].len); 13182 #endif 13183 } 13184 } else { 13185 uint32_t len_to_go; 13186 13187 /* 13188 * In this case, we don't have automatically allocated 13189 * memory for this I/O on this controller. This typically 13190 * happens with internal CTL I/O -- e.g. inquiry, mode 13191 * sense, etc. Anything coming from RAIDCore will have 13192 * a mirror area available. 13193 */ 13194 len_to_go = io->scsiio.kern_data_len; 13195 13196 /* 13197 * Clear the no datasync flag, we have to use malloced 13198 * buffers. 13199 */ 13200 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13201 13202 /* 13203 * The difficult thing here is that the size of the various 13204 * S/G segments may be different than the size from the 13205 * remote controller. That'll make it harder when DMAing 13206 * the data back to the other side. 13207 */ 13208 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13209 sizeof(io->io_hdr.remote_sglist[0])) && 13210 (len_to_go > 0); i++) { 13211 local_sglist[i].len = ctl_min(len_to_go, 131072); 13212 CTL_SIZE_8B(local_dma_sglist[i].len, 13213 local_sglist[i].len); 13214 local_sglist[i].addr = 13215 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13216 13217 local_dma_sglist[i].addr = local_sglist[i].addr; 13218 13219 if (local_sglist[i].addr == NULL) { 13220 int j; 13221 13222 printf("malloc failed for %zd bytes!", 13223 local_dma_sglist[i].len); 13224 for (j = 0; j < i; j++) { 13225 free(local_sglist[j].addr, M_CTL); 13226 } 13227 ctl_set_internal_failure(&io->scsiio, 13228 /*sks_valid*/ 1, 13229 /*retry_count*/ 4857); 13230 retval = 1; 13231 goto bailout_error; 13232 13233 } 13234 /* XXX KDM do we need a sync here? */ 13235 13236 len_to_go -= local_sglist[i].len; 13237 } 13238 /* 13239 * Reset the number of S/G entries accordingly. The 13240 * original number of S/G entries is available in 13241 * rem_sg_entries. 13242 */ 13243 io->scsiio.kern_sg_entries = i; 13244 13245 #if 0 13246 printf("%s: kern_sg_entries = %d\n", __func__, 13247 io->scsiio.kern_sg_entries); 13248 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13249 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13250 local_sglist[i].addr, local_sglist[i].len, 13251 local_dma_sglist[i].len); 13252 #endif 13253 } 13254 13255 13256 return (retval); 13257 13258 bailout_error: 13259 13260 ctl_send_datamove_done(io, /*have_lock*/ 0); 13261 13262 return (retval); 13263 } 13264 13265 static int 13266 ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13267 ctl_ha_dt_cb callback) 13268 { 13269 struct ctl_ha_dt_req *rq; 13270 struct ctl_sg_entry *remote_sglist, *local_sglist; 13271 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13272 uint32_t local_used, remote_used, total_used; 13273 int retval; 13274 int i, j; 13275 13276 retval = 0; 13277 13278 rq = ctl_dt_req_alloc(); 13279 13280 /* 13281 * If we failed to allocate the request, and if the DMA didn't fail 13282 * anyway, set busy status. This is just a resource allocation 13283 * failure. 13284 */ 13285 if ((rq == NULL) 13286 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13287 ctl_set_busy(&io->scsiio); 13288 13289 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13290 13291 if (rq != NULL) 13292 ctl_dt_req_free(rq); 13293 13294 /* 13295 * The data move failed. We need to return status back 13296 * to the other controller. No point in trying to DMA 13297 * data to the remote controller. 13298 */ 13299 13300 ctl_send_datamove_done(io, /*have_lock*/ 0); 13301 13302 retval = 1; 13303 13304 goto bailout; 13305 } 13306 13307 local_sglist = io->io_hdr.local_sglist; 13308 local_dma_sglist = io->io_hdr.local_dma_sglist; 13309 remote_sglist = io->io_hdr.remote_sglist; 13310 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13311 local_used = 0; 13312 remote_used = 0; 13313 total_used = 0; 13314 13315 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13316 rq->ret = CTL_HA_STATUS_SUCCESS; 13317 rq->context = io; 13318 callback(rq); 13319 goto bailout; 13320 } 13321 13322 /* 13323 * Pull/push the data over the wire from/to the other controller. 13324 * This takes into account the possibility that the local and 13325 * remote sglists may not be identical in terms of the size of 13326 * the elements and the number of elements. 13327 * 13328 * One fundamental assumption here is that the length allocated for 13329 * both the local and remote sglists is identical. Otherwise, we've 13330 * essentially got a coding error of some sort. 13331 */ 13332 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13333 int isc_ret; 13334 uint32_t cur_len, dma_length; 13335 uint8_t *tmp_ptr; 13336 13337 rq->id = CTL_HA_DATA_CTL; 13338 rq->command = command; 13339 rq->context = io; 13340 13341 /* 13342 * Both pointers should be aligned. But it is possible 13343 * that the allocation length is not. They should both 13344 * also have enough slack left over at the end, though, 13345 * to round up to the next 8 byte boundary. 13346 */ 13347 cur_len = ctl_min(local_sglist[i].len - local_used, 13348 remote_sglist[j].len - remote_used); 13349 13350 /* 13351 * In this case, we have a size issue and need to decrease 13352 * the size, except in the case where we actually have less 13353 * than 8 bytes left. In that case, we need to increase 13354 * the DMA length to get the last bit. 13355 */ 13356 if ((cur_len & 0x7) != 0) { 13357 if (cur_len > 0x7) { 13358 cur_len = cur_len - (cur_len & 0x7); 13359 dma_length = cur_len; 13360 } else { 13361 CTL_SIZE_8B(dma_length, cur_len); 13362 } 13363 13364 } else 13365 dma_length = cur_len; 13366 13367 /* 13368 * If we had to allocate memory for this I/O, instead of using 13369 * the non-cached mirror memory, we'll need to flush the cache 13370 * before trying to DMA to the other controller. 13371 * 13372 * We could end up doing this multiple times for the same 13373 * segment if we have a larger local segment than remote 13374 * segment. That shouldn't be an issue. 13375 */ 13376 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13377 /* 13378 * XXX KDM use bus_dmamap_sync() here. 13379 */ 13380 } 13381 13382 rq->size = dma_length; 13383 13384 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13385 tmp_ptr += local_used; 13386 13387 /* Use physical addresses when talking to ISC hardware */ 13388 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13389 /* XXX KDM use busdma */ 13390 #if 0 13391 rq->local = vtophys(tmp_ptr); 13392 #endif 13393 } else 13394 rq->local = tmp_ptr; 13395 13396 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13397 tmp_ptr += remote_used; 13398 rq->remote = tmp_ptr; 13399 13400 rq->callback = NULL; 13401 13402 local_used += cur_len; 13403 if (local_used >= local_sglist[i].len) { 13404 i++; 13405 local_used = 0; 13406 } 13407 13408 remote_used += cur_len; 13409 if (remote_used >= remote_sglist[j].len) { 13410 j++; 13411 remote_used = 0; 13412 } 13413 total_used += cur_len; 13414 13415 if (total_used >= io->scsiio.kern_data_len) 13416 rq->callback = callback; 13417 13418 if ((rq->size & 0x7) != 0) { 13419 printf("%s: warning: size %d is not on 8b boundary\n", 13420 __func__, rq->size); 13421 } 13422 if (((uintptr_t)rq->local & 0x7) != 0) { 13423 printf("%s: warning: local %p not on 8b boundary\n", 13424 __func__, rq->local); 13425 } 13426 if (((uintptr_t)rq->remote & 0x7) != 0) { 13427 printf("%s: warning: remote %p not on 8b boundary\n", 13428 __func__, rq->local); 13429 } 13430 #if 0 13431 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13432 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13433 rq->local, rq->remote, rq->size); 13434 #endif 13435 13436 isc_ret = ctl_dt_single(rq); 13437 if (isc_ret == CTL_HA_STATUS_WAIT) 13438 continue; 13439 13440 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13441 rq->ret = CTL_HA_STATUS_SUCCESS; 13442 } else { 13443 rq->ret = isc_ret; 13444 } 13445 callback(rq); 13446 goto bailout; 13447 } 13448 13449 bailout: 13450 return (retval); 13451 13452 } 13453 13454 static void 13455 ctl_datamove_remote_read(union ctl_io *io) 13456 { 13457 int retval; 13458 int i; 13459 13460 /* 13461 * This will send an error to the other controller in the case of a 13462 * failure. 13463 */ 13464 retval = ctl_datamove_remote_sgl_setup(io); 13465 if (retval != 0) 13466 return; 13467 13468 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13469 ctl_datamove_remote_read_cb); 13470 if ((retval != 0) 13471 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13472 /* 13473 * Make sure we free memory if there was an error.. The 13474 * ctl_datamove_remote_xfer() function will send the 13475 * datamove done message, or call the callback with an 13476 * error if there is a problem. 13477 */ 13478 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13479 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13480 } 13481 13482 return; 13483 } 13484 13485 /* 13486 * Process a datamove request from the other controller. This is used for 13487 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13488 * first. Once that is complete, the data gets DMAed into the remote 13489 * controller's memory. For reads, we DMA from the remote controller's 13490 * memory into our memory first, and then move it out to the FETD. 13491 */ 13492 static void 13493 ctl_datamove_remote(union ctl_io *io) 13494 { 13495 struct ctl_softc *softc; 13496 13497 softc = control_softc; 13498 13499 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13500 13501 /* 13502 * Note that we look for an aborted I/O here, but don't do some of 13503 * the other checks that ctl_datamove() normally does. 13504 * We don't need to run the datamove delay code, since that should 13505 * have been done if need be on the other controller. 13506 */ 13507 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13508 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13509 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13510 io->io_hdr.nexus.targ_port, 13511 io->io_hdr.nexus.targ_target.id, 13512 io->io_hdr.nexus.targ_lun); 13513 io->io_hdr.port_status = 31338; 13514 ctl_send_datamove_done(io, /*have_lock*/ 0); 13515 return; 13516 } 13517 13518 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13519 ctl_datamove_remote_write(io); 13520 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13521 ctl_datamove_remote_read(io); 13522 } else { 13523 union ctl_ha_msg msg; 13524 struct scsi_sense_data *sense; 13525 uint8_t sks[3]; 13526 int retry_count; 13527 13528 memset(&msg, 0, sizeof(msg)); 13529 13530 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13531 msg.hdr.status = CTL_SCSI_ERROR; 13532 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13533 13534 retry_count = 4243; 13535 13536 sense = &msg.scsi.sense_data; 13537 sks[0] = SSD_SCS_VALID; 13538 sks[1] = (retry_count >> 8) & 0xff; 13539 sks[2] = retry_count & 0xff; 13540 13541 /* "Internal target failure" */ 13542 scsi_set_sense_data(sense, 13543 /*sense_format*/ SSD_TYPE_NONE, 13544 /*current_error*/ 1, 13545 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13546 /*asc*/ 0x44, 13547 /*ascq*/ 0x00, 13548 /*type*/ SSD_ELEM_SKS, 13549 /*size*/ sizeof(sks), 13550 /*data*/ sks, 13551 SSD_ELEM_NONE); 13552 13553 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13554 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13555 ctl_failover_io(io, /*have_lock*/ 1); 13556 return; 13557 } 13558 13559 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13560 CTL_HA_STATUS_SUCCESS) { 13561 /* XXX KDM what to do if this fails? */ 13562 } 13563 return; 13564 } 13565 13566 } 13567 13568 static int 13569 ctl_process_done(union ctl_io *io) 13570 { 13571 struct ctl_lun *lun; 13572 struct ctl_softc *ctl_softc; 13573 void (*fe_done)(union ctl_io *io); 13574 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13575 13576 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13577 13578 fe_done = 13579 control_softc->ctl_ports[targ_port]->fe_done; 13580 13581 #ifdef CTL_TIME_IO 13582 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13583 char str[256]; 13584 char path_str[64]; 13585 struct sbuf sb; 13586 13587 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13588 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13589 13590 sbuf_cat(&sb, path_str); 13591 switch (io->io_hdr.io_type) { 13592 case CTL_IO_SCSI: 13593 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13594 sbuf_printf(&sb, "\n"); 13595 sbuf_cat(&sb, path_str); 13596 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13597 io->scsiio.tag_num, io->scsiio.tag_type); 13598 break; 13599 case CTL_IO_TASK: 13600 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13601 "Tag Type: %d\n", io->taskio.task_action, 13602 io->taskio.tag_num, io->taskio.tag_type); 13603 break; 13604 default: 13605 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13606 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13607 break; 13608 } 13609 sbuf_cat(&sb, path_str); 13610 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13611 (intmax_t)time_uptime - io->io_hdr.start_time); 13612 sbuf_finish(&sb); 13613 printf("%s", sbuf_data(&sb)); 13614 } 13615 #endif /* CTL_TIME_IO */ 13616 13617 switch (io->io_hdr.io_type) { 13618 case CTL_IO_SCSI: 13619 break; 13620 case CTL_IO_TASK: 13621 if (bootverbose || verbose > 0) 13622 ctl_io_error_print(io, NULL); 13623 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13624 ctl_free_io(io); 13625 else 13626 fe_done(io); 13627 return (CTL_RETVAL_COMPLETE); 13628 break; 13629 default: 13630 printf("ctl_process_done: invalid io type %d\n", 13631 io->io_hdr.io_type); 13632 panic("ctl_process_done: invalid io type %d\n", 13633 io->io_hdr.io_type); 13634 break; /* NOTREACHED */ 13635 } 13636 13637 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13638 if (lun == NULL) { 13639 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13640 io->io_hdr.nexus.targ_mapped_lun)); 13641 fe_done(io); 13642 goto bailout; 13643 } 13644 ctl_softc = lun->ctl_softc; 13645 13646 mtx_lock(&lun->lun_lock); 13647 13648 /* 13649 * Check to see if we have any errors to inject here. We only 13650 * inject errors for commands that don't already have errors set. 13651 */ 13652 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13653 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13654 ctl_inject_error(lun, io); 13655 13656 /* 13657 * XXX KDM how do we treat commands that aren't completed 13658 * successfully? 13659 * 13660 * XXX KDM should we also track I/O latency? 13661 */ 13662 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13663 io->io_hdr.io_type == CTL_IO_SCSI) { 13664 #ifdef CTL_TIME_IO 13665 struct bintime cur_bt; 13666 #endif 13667 int type; 13668 13669 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13670 CTL_FLAG_DATA_IN) 13671 type = CTL_STATS_READ; 13672 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13673 CTL_FLAG_DATA_OUT) 13674 type = CTL_STATS_WRITE; 13675 else 13676 type = CTL_STATS_NO_IO; 13677 13678 lun->stats.ports[targ_port].bytes[type] += 13679 io->scsiio.kern_total_len; 13680 lun->stats.ports[targ_port].operations[type]++; 13681 #ifdef CTL_TIME_IO 13682 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13683 &io->io_hdr.dma_bt); 13684 lun->stats.ports[targ_port].num_dmas[type] += 13685 io->io_hdr.num_dmas; 13686 getbintime(&cur_bt); 13687 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13688 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13689 #endif 13690 } 13691 13692 /* 13693 * Remove this from the OOA queue. 13694 */ 13695 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13696 13697 /* 13698 * Run through the blocked queue on this LUN and see if anything 13699 * has become unblocked, now that this transaction is done. 13700 */ 13701 ctl_check_blocked(lun); 13702 13703 /* 13704 * If the LUN has been invalidated, free it if there is nothing 13705 * left on its OOA queue. 13706 */ 13707 if ((lun->flags & CTL_LUN_INVALID) 13708 && TAILQ_EMPTY(&lun->ooa_queue)) { 13709 mtx_unlock(&lun->lun_lock); 13710 mtx_lock(&ctl_softc->ctl_lock); 13711 ctl_free_lun(lun); 13712 mtx_unlock(&ctl_softc->ctl_lock); 13713 } else 13714 mtx_unlock(&lun->lun_lock); 13715 13716 /* 13717 * If this command has been aborted, make sure we set the status 13718 * properly. The FETD is responsible for freeing the I/O and doing 13719 * whatever it needs to do to clean up its state. 13720 */ 13721 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13722 ctl_set_task_aborted(&io->scsiio); 13723 13724 /* 13725 * We print out status for every task management command. For SCSI 13726 * commands, we filter out any unit attention errors; they happen 13727 * on every boot, and would clutter up the log. Note: task 13728 * management commands aren't printed here, they are printed above, 13729 * since they should never even make it down here. 13730 */ 13731 switch (io->io_hdr.io_type) { 13732 case CTL_IO_SCSI: { 13733 int error_code, sense_key, asc, ascq; 13734 13735 sense_key = 0; 13736 13737 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13738 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13739 /* 13740 * Since this is just for printing, no need to 13741 * show errors here. 13742 */ 13743 scsi_extract_sense_len(&io->scsiio.sense_data, 13744 io->scsiio.sense_len, 13745 &error_code, 13746 &sense_key, 13747 &asc, 13748 &ascq, 13749 /*show_errors*/ 0); 13750 } 13751 13752 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13753 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13754 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13755 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13756 13757 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13758 ctl_softc->skipped_prints++; 13759 } else { 13760 uint32_t skipped_prints; 13761 13762 skipped_prints = ctl_softc->skipped_prints; 13763 13764 ctl_softc->skipped_prints = 0; 13765 ctl_softc->last_print_jiffies = time_uptime; 13766 13767 if (skipped_prints > 0) { 13768 #ifdef NEEDTOPORT 13769 csevent_log(CSC_CTL | CSC_SHELF_SW | 13770 CTL_ERROR_REPORT, 13771 csevent_LogType_Trace, 13772 csevent_Severity_Information, 13773 csevent_AlertLevel_Green, 13774 csevent_FRU_Firmware, 13775 csevent_FRU_Unknown, 13776 "High CTL error volume, %d prints " 13777 "skipped", skipped_prints); 13778 #endif 13779 } 13780 if (bootverbose || verbose > 0) 13781 ctl_io_error_print(io, NULL); 13782 } 13783 } 13784 break; 13785 } 13786 case CTL_IO_TASK: 13787 if (bootverbose || verbose > 0) 13788 ctl_io_error_print(io, NULL); 13789 break; 13790 default: 13791 break; 13792 } 13793 13794 /* 13795 * Tell the FETD or the other shelf controller we're done with this 13796 * command. Note that only SCSI commands get to this point. Task 13797 * management commands are completed above. 13798 * 13799 * We only send status to the other controller if we're in XFER 13800 * mode. In SER_ONLY mode, the I/O is done on the controller that 13801 * received the I/O (from CTL's perspective), and so the status is 13802 * generated there. 13803 * 13804 * XXX KDM if we hold the lock here, we could cause a deadlock 13805 * if the frontend comes back in in this context to queue 13806 * something. 13807 */ 13808 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13809 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13810 union ctl_ha_msg msg; 13811 13812 memset(&msg, 0, sizeof(msg)); 13813 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13814 msg.hdr.original_sc = io->io_hdr.original_sc; 13815 msg.hdr.nexus = io->io_hdr.nexus; 13816 msg.hdr.status = io->io_hdr.status; 13817 msg.scsi.scsi_status = io->scsiio.scsi_status; 13818 msg.scsi.tag_num = io->scsiio.tag_num; 13819 msg.scsi.tag_type = io->scsiio.tag_type; 13820 msg.scsi.sense_len = io->scsiio.sense_len; 13821 msg.scsi.sense_residual = io->scsiio.sense_residual; 13822 msg.scsi.residual = io->scsiio.residual; 13823 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13824 sizeof(io->scsiio.sense_data)); 13825 /* 13826 * We copy this whether or not this is an I/O-related 13827 * command. Otherwise, we'd have to go and check to see 13828 * whether it's a read/write command, and it really isn't 13829 * worth it. 13830 */ 13831 memcpy(&msg.scsi.lbalen, 13832 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13833 sizeof(msg.scsi.lbalen)); 13834 13835 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13836 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13837 /* XXX do something here */ 13838 } 13839 13840 ctl_free_io(io); 13841 } else 13842 fe_done(io); 13843 13844 bailout: 13845 13846 return (CTL_RETVAL_COMPLETE); 13847 } 13848 13849 #ifdef CTL_WITH_CA 13850 /* 13851 * Front end should call this if it doesn't do autosense. When the request 13852 * sense comes back in from the initiator, we'll dequeue this and send it. 13853 */ 13854 int 13855 ctl_queue_sense(union ctl_io *io) 13856 { 13857 struct ctl_lun *lun; 13858 struct ctl_softc *ctl_softc; 13859 uint32_t initidx, targ_lun; 13860 13861 ctl_softc = control_softc; 13862 13863 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13864 13865 /* 13866 * LUN lookup will likely move to the ctl_work_thread() once we 13867 * have our new queueing infrastructure (that doesn't put things on 13868 * a per-LUN queue initially). That is so that we can handle 13869 * things like an INQUIRY to a LUN that we don't have enabled. We 13870 * can't deal with that right now. 13871 */ 13872 mtx_lock(&ctl_softc->ctl_lock); 13873 13874 /* 13875 * If we don't have a LUN for this, just toss the sense 13876 * information. 13877 */ 13878 targ_lun = io->io_hdr.nexus.targ_lun; 13879 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13880 if ((targ_lun < CTL_MAX_LUNS) 13881 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13882 lun = ctl_softc->ctl_luns[targ_lun]; 13883 else 13884 goto bailout; 13885 13886 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13887 13888 mtx_lock(&lun->lun_lock); 13889 /* 13890 * Already have CA set for this LUN...toss the sense information. 13891 */ 13892 if (ctl_is_set(lun->have_ca, initidx)) { 13893 mtx_unlock(&lun->lun_lock); 13894 goto bailout; 13895 } 13896 13897 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13898 ctl_min(sizeof(lun->pending_sense[initidx]), 13899 sizeof(io->scsiio.sense_data))); 13900 ctl_set_mask(lun->have_ca, initidx); 13901 mtx_unlock(&lun->lun_lock); 13902 13903 bailout: 13904 mtx_unlock(&ctl_softc->ctl_lock); 13905 13906 ctl_free_io(io); 13907 13908 return (CTL_RETVAL_COMPLETE); 13909 } 13910 #endif 13911 13912 /* 13913 * Primary command inlet from frontend ports. All SCSI and task I/O 13914 * requests must go through this function. 13915 */ 13916 int 13917 ctl_queue(union ctl_io *io) 13918 { 13919 struct ctl_softc *ctl_softc; 13920 13921 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13922 13923 ctl_softc = control_softc; 13924 13925 #ifdef CTL_TIME_IO 13926 io->io_hdr.start_time = time_uptime; 13927 getbintime(&io->io_hdr.start_bt); 13928 #endif /* CTL_TIME_IO */ 13929 13930 /* Map FE-specific LUN ID into global one. */ 13931 io->io_hdr.nexus.targ_mapped_lun = 13932 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13933 13934 switch (io->io_hdr.io_type) { 13935 case CTL_IO_SCSI: 13936 case CTL_IO_TASK: 13937 ctl_enqueue_incoming(io); 13938 break; 13939 default: 13940 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13941 return (EINVAL); 13942 } 13943 13944 return (CTL_RETVAL_COMPLETE); 13945 } 13946 13947 #ifdef CTL_IO_DELAY 13948 static void 13949 ctl_done_timer_wakeup(void *arg) 13950 { 13951 union ctl_io *io; 13952 13953 io = (union ctl_io *)arg; 13954 ctl_done(io); 13955 } 13956 #endif /* CTL_IO_DELAY */ 13957 13958 void 13959 ctl_done(union ctl_io *io) 13960 { 13961 struct ctl_softc *ctl_softc; 13962 13963 ctl_softc = control_softc; 13964 13965 /* 13966 * Enable this to catch duplicate completion issues. 13967 */ 13968 #if 0 13969 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13970 printf("%s: type %d msg %d cdb %x iptl: " 13971 "%d:%d:%d:%d tag 0x%04x " 13972 "flag %#x status %x\n", 13973 __func__, 13974 io->io_hdr.io_type, 13975 io->io_hdr.msg_type, 13976 io->scsiio.cdb[0], 13977 io->io_hdr.nexus.initid.id, 13978 io->io_hdr.nexus.targ_port, 13979 io->io_hdr.nexus.targ_target.id, 13980 io->io_hdr.nexus.targ_lun, 13981 (io->io_hdr.io_type == 13982 CTL_IO_TASK) ? 13983 io->taskio.tag_num : 13984 io->scsiio.tag_num, 13985 io->io_hdr.flags, 13986 io->io_hdr.status); 13987 } else 13988 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13989 #endif 13990 13991 /* 13992 * This is an internal copy of an I/O, and should not go through 13993 * the normal done processing logic. 13994 */ 13995 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13996 return; 13997 13998 /* 13999 * We need to send a msg to the serializing shelf to finish the IO 14000 * as well. We don't send a finish message to the other shelf if 14001 * this is a task management command. Task management commands 14002 * aren't serialized in the OOA queue, but rather just executed on 14003 * both shelf controllers for commands that originated on that 14004 * controller. 14005 */ 14006 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14007 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14008 union ctl_ha_msg msg_io; 14009 14010 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14011 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14012 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14013 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14014 } 14015 /* continue on to finish IO */ 14016 } 14017 #ifdef CTL_IO_DELAY 14018 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14019 struct ctl_lun *lun; 14020 14021 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14022 14023 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14024 } else { 14025 struct ctl_lun *lun; 14026 14027 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14028 14029 if ((lun != NULL) 14030 && (lun->delay_info.done_delay > 0)) { 14031 struct callout *callout; 14032 14033 callout = (struct callout *)&io->io_hdr.timer_bytes; 14034 callout_init(callout, /*mpsafe*/ 1); 14035 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14036 callout_reset(callout, 14037 lun->delay_info.done_delay * hz, 14038 ctl_done_timer_wakeup, io); 14039 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14040 lun->delay_info.done_delay = 0; 14041 return; 14042 } 14043 } 14044 #endif /* CTL_IO_DELAY */ 14045 14046 ctl_enqueue_done(io); 14047 } 14048 14049 int 14050 ctl_isc(struct ctl_scsiio *ctsio) 14051 { 14052 struct ctl_lun *lun; 14053 int retval; 14054 14055 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14056 14057 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14058 14059 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14060 14061 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14062 14063 return (retval); 14064 } 14065 14066 14067 static void 14068 ctl_work_thread(void *arg) 14069 { 14070 struct ctl_thread *thr = (struct ctl_thread *)arg; 14071 struct ctl_softc *softc = thr->ctl_softc; 14072 union ctl_io *io; 14073 int retval; 14074 14075 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14076 14077 for (;;) { 14078 retval = 0; 14079 14080 /* 14081 * We handle the queues in this order: 14082 * - ISC 14083 * - done queue (to free up resources, unblock other commands) 14084 * - RtR queue 14085 * - incoming queue 14086 * 14087 * If those queues are empty, we break out of the loop and 14088 * go to sleep. 14089 */ 14090 mtx_lock(&thr->queue_lock); 14091 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14092 if (io != NULL) { 14093 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14094 mtx_unlock(&thr->queue_lock); 14095 ctl_handle_isc(io); 14096 continue; 14097 } 14098 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14099 if (io != NULL) { 14100 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14101 /* clear any blocked commands, call fe_done */ 14102 mtx_unlock(&thr->queue_lock); 14103 retval = ctl_process_done(io); 14104 continue; 14105 } 14106 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14107 if (io != NULL) { 14108 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14109 mtx_unlock(&thr->queue_lock); 14110 if (io->io_hdr.io_type == CTL_IO_TASK) 14111 ctl_run_task(io); 14112 else 14113 ctl_scsiio_precheck(softc, &io->scsiio); 14114 continue; 14115 } 14116 if (!ctl_pause_rtr) { 14117 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14118 if (io != NULL) { 14119 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14120 mtx_unlock(&thr->queue_lock); 14121 retval = ctl_scsiio(&io->scsiio); 14122 if (retval != CTL_RETVAL_COMPLETE) 14123 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14124 continue; 14125 } 14126 } 14127 14128 /* Sleep until we have something to do. */ 14129 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14130 } 14131 } 14132 14133 static void 14134 ctl_lun_thread(void *arg) 14135 { 14136 struct ctl_softc *softc = (struct ctl_softc *)arg; 14137 struct ctl_be_lun *be_lun; 14138 int retval; 14139 14140 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14141 14142 for (;;) { 14143 retval = 0; 14144 mtx_lock(&softc->ctl_lock); 14145 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14146 if (be_lun != NULL) { 14147 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14148 mtx_unlock(&softc->ctl_lock); 14149 ctl_create_lun(be_lun); 14150 continue; 14151 } 14152 14153 /* Sleep until we have something to do. */ 14154 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14155 PDROP | PRIBIO, "-", 0); 14156 } 14157 } 14158 14159 static void 14160 ctl_enqueue_incoming(union ctl_io *io) 14161 { 14162 struct ctl_softc *softc = control_softc; 14163 struct ctl_thread *thr; 14164 u_int idx; 14165 14166 idx = (io->io_hdr.nexus.targ_port * 127 + 14167 io->io_hdr.nexus.initid.id) % worker_threads; 14168 thr = &softc->threads[idx]; 14169 mtx_lock(&thr->queue_lock); 14170 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14171 mtx_unlock(&thr->queue_lock); 14172 wakeup(thr); 14173 } 14174 14175 static void 14176 ctl_enqueue_rtr(union ctl_io *io) 14177 { 14178 struct ctl_softc *softc = control_softc; 14179 struct ctl_thread *thr; 14180 14181 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14182 mtx_lock(&thr->queue_lock); 14183 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14184 mtx_unlock(&thr->queue_lock); 14185 wakeup(thr); 14186 } 14187 14188 static void 14189 ctl_enqueue_done(union ctl_io *io) 14190 { 14191 struct ctl_softc *softc = control_softc; 14192 struct ctl_thread *thr; 14193 14194 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14195 mtx_lock(&thr->queue_lock); 14196 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14197 mtx_unlock(&thr->queue_lock); 14198 wakeup(thr); 14199 } 14200 14201 static void 14202 ctl_enqueue_isc(union ctl_io *io) 14203 { 14204 struct ctl_softc *softc = control_softc; 14205 struct ctl_thread *thr; 14206 14207 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14208 mtx_lock(&thr->queue_lock); 14209 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14210 mtx_unlock(&thr->queue_lock); 14211 wakeup(thr); 14212 } 14213 14214 /* Initialization and failover */ 14215 14216 void 14217 ctl_init_isc_msg(void) 14218 { 14219 printf("CTL: Still calling this thing\n"); 14220 } 14221 14222 /* 14223 * Init component 14224 * Initializes component into configuration defined by bootMode 14225 * (see hasc-sv.c) 14226 * returns hasc_Status: 14227 * OK 14228 * ERROR - fatal error 14229 */ 14230 static ctl_ha_comp_status 14231 ctl_isc_init(struct ctl_ha_component *c) 14232 { 14233 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14234 14235 c->status = ret; 14236 return ret; 14237 } 14238 14239 /* Start component 14240 * Starts component in state requested. If component starts successfully, 14241 * it must set its own state to the requestrd state 14242 * When requested state is HASC_STATE_HA, the component may refine it 14243 * by adding _SLAVE or _MASTER flags. 14244 * Currently allowed state transitions are: 14245 * UNKNOWN->HA - initial startup 14246 * UNKNOWN->SINGLE - initial startup when no parter detected 14247 * HA->SINGLE - failover 14248 * returns ctl_ha_comp_status: 14249 * OK - component successfully started in requested state 14250 * FAILED - could not start the requested state, failover may 14251 * be possible 14252 * ERROR - fatal error detected, no future startup possible 14253 */ 14254 static ctl_ha_comp_status 14255 ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14256 { 14257 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14258 14259 printf("%s: go\n", __func__); 14260 14261 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14262 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14263 ctl_is_single = 0; 14264 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14265 != CTL_HA_STATUS_SUCCESS) { 14266 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14267 ret = CTL_HA_COMP_STATUS_ERROR; 14268 } 14269 } else if (CTL_HA_STATE_IS_HA(c->state) 14270 && CTL_HA_STATE_IS_SINGLE(state)){ 14271 // HA->SINGLE transition 14272 ctl_failover(); 14273 ctl_is_single = 1; 14274 } else { 14275 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14276 c->state, state); 14277 ret = CTL_HA_COMP_STATUS_ERROR; 14278 } 14279 if (CTL_HA_STATE_IS_SINGLE(state)) 14280 ctl_is_single = 1; 14281 14282 c->state = state; 14283 c->status = ret; 14284 return ret; 14285 } 14286 14287 /* 14288 * Quiesce component 14289 * The component must clear any error conditions (set status to OK) and 14290 * prepare itself to another Start call 14291 * returns ctl_ha_comp_status: 14292 * OK 14293 * ERROR 14294 */ 14295 static ctl_ha_comp_status 14296 ctl_isc_quiesce(struct ctl_ha_component *c) 14297 { 14298 int ret = CTL_HA_COMP_STATUS_OK; 14299 14300 ctl_pause_rtr = 1; 14301 c->status = ret; 14302 return ret; 14303 } 14304 14305 struct ctl_ha_component ctl_ha_component_ctlisc = 14306 { 14307 .name = "CTL ISC", 14308 .state = CTL_HA_STATE_UNKNOWN, 14309 .init = ctl_isc_init, 14310 .start = ctl_isc_start, 14311 .quiesce = ctl_isc_quiesce 14312 }; 14313 14314 /* 14315 * vim: ts=8 14316 */ 14317