ctl.c revision 273531
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: stable/10/sys/cam/ctl/ctl.c 273531 2014-10-23 07:36:33Z mav $"); 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 83struct 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 */ 112static 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 125static 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 138static 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 150static 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 162static 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 172static 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 181static 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 198static 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 214static 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 231static 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 247static 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 263static 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 279static 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 291static 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 */ 307static int rcv_sync_msg; 308static int persis_offset; 309static uint8_t ctl_pause_rtr; 310static int ctl_is_single = 1; 311static int index_to_aps_page; 312 313SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314static int worker_threads = -1; 315TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 316SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 317 &worker_threads, 1, "Number of worker threads"); 318static int ctl_debug = CTL_DEBUG_NONE; 319TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 320SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 321 &ctl_debug, 0, "Enabled debug flags"); 322 323/* 324 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 325 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 326 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 327 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 328 */ 329#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 330 331static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 332 int param); 333static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 334static int ctl_init(void); 335void ctl_shutdown(void); 336static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 337static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 338static void ctl_ioctl_online(void *arg); 339static void ctl_ioctl_offline(void *arg); 340static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 341static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 342static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 343static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 344static int ctl_ioctl_submit_wait(union ctl_io *io); 345static void ctl_ioctl_datamove(union ctl_io *io); 346static void ctl_ioctl_done(union ctl_io *io); 347static void ctl_ioctl_hard_startstop_callback(void *arg, 348 struct cfi_metatask *metatask); 349static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 350static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 351 struct ctl_ooa *ooa_hdr, 352 struct ctl_ooa_entry *kern_entries); 353static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 354 struct thread *td); 355static uint32_t ctl_map_lun(int port_num, uint32_t lun); 356static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 357#ifdef unused 358static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 359 uint32_t targ_target, uint32_t targ_lun, 360 int can_wait); 361static void ctl_kfree_io(union ctl_io *io); 362#endif /* unused */ 363static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 364 struct ctl_be_lun *be_lun, struct ctl_id target_id); 365static int ctl_free_lun(struct ctl_lun *lun); 366static void ctl_create_lun(struct ctl_be_lun *be_lun); 367/** 368static void ctl_failover_change_pages(struct ctl_softc *softc, 369 struct ctl_scsiio *ctsio, int master); 370**/ 371 372static int ctl_do_mode_select(union ctl_io *io); 373static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 374 uint64_t res_key, uint64_t sa_res_key, 375 uint8_t type, uint32_t residx, 376 struct ctl_scsiio *ctsio, 377 struct scsi_per_res_out *cdb, 378 struct scsi_per_res_out_parms* param); 379static void ctl_pro_preempt_other(struct ctl_lun *lun, 380 union ctl_ha_msg *msg); 381static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 382static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 383static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 384static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 385static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 386static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 387static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 388 int alloc_len); 389static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 390 int alloc_len); 391static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 392static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 393static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 394static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 395static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 396static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 397static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 398 union ctl_io *pending_io, union ctl_io *ooa_io); 399static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 400 union ctl_io *starting_io); 401static int ctl_check_blocked(struct ctl_lun *lun); 402static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 403 struct ctl_lun *lun, 404 const struct ctl_cmd_entry *entry, 405 struct ctl_scsiio *ctsio); 406//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 407static void ctl_failover(void); 408static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 409 struct ctl_scsiio *ctsio); 410static int ctl_scsiio(struct ctl_scsiio *ctsio); 411 412static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 413static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 414 ctl_ua_type ua_type); 415static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 416 ctl_ua_type ua_type); 417static int ctl_abort_task(union ctl_io *io); 418static int ctl_abort_task_set(union ctl_io *io); 419static int ctl_i_t_nexus_reset(union ctl_io *io); 420static void ctl_run_task(union ctl_io *io); 421#ifdef CTL_IO_DELAY 422static void ctl_datamove_timer_wakeup(void *arg); 423static void ctl_done_timer_wakeup(void *arg); 424#endif /* CTL_IO_DELAY */ 425 426static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 427static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 428static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 429static void ctl_datamove_remote_write(union ctl_io *io); 430static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 431static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 432static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 433static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 434 ctl_ha_dt_cb callback); 435static void ctl_datamove_remote_read(union ctl_io *io); 436static void ctl_datamove_remote(union ctl_io *io); 437static int ctl_process_done(union ctl_io *io); 438static void ctl_lun_thread(void *arg); 439static void ctl_work_thread(void *arg); 440static void ctl_enqueue_incoming(union ctl_io *io); 441static void ctl_enqueue_rtr(union ctl_io *io); 442static void ctl_enqueue_done(union ctl_io *io); 443static void ctl_enqueue_isc(union ctl_io *io); 444static const struct ctl_cmd_entry * 445 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 446static const struct ctl_cmd_entry * 447 ctl_validate_command(struct ctl_scsiio *ctsio); 448static int ctl_cmd_applicable(uint8_t lun_type, 449 const struct ctl_cmd_entry *entry); 450 451/* 452 * Load the serialization table. This isn't very pretty, but is probably 453 * the easiest way to do it. 454 */ 455#include "ctl_ser_table.c" 456 457/* 458 * We only need to define open, close and ioctl routines for this driver. 459 */ 460static struct cdevsw ctl_cdevsw = { 461 .d_version = D_VERSION, 462 .d_flags = 0, 463 .d_open = ctl_open, 464 .d_close = ctl_close, 465 .d_ioctl = ctl_ioctl, 466 .d_name = "ctl", 467}; 468 469 470MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 471MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 472 473static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 474 475static moduledata_t ctl_moduledata = { 476 "ctl", 477 ctl_module_event_handler, 478 NULL 479}; 480 481DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 482MODULE_VERSION(ctl, 1); 483 484static struct ctl_frontend ioctl_frontend = 485{ 486 .name = "ioctl", 487}; 488 489static void 490ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 491 union ctl_ha_msg *msg_info) 492{ 493 struct ctl_scsiio *ctsio; 494 495 if (msg_info->hdr.original_sc == NULL) { 496 printf("%s: original_sc == NULL!\n", __func__); 497 /* XXX KDM now what? */ 498 return; 499 } 500 501 ctsio = &msg_info->hdr.original_sc->scsiio; 502 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 503 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 504 ctsio->io_hdr.status = msg_info->hdr.status; 505 ctsio->scsi_status = msg_info->scsi.scsi_status; 506 ctsio->sense_len = msg_info->scsi.sense_len; 507 ctsio->sense_residual = msg_info->scsi.sense_residual; 508 ctsio->residual = msg_info->scsi.residual; 509 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 510 sizeof(ctsio->sense_data)); 511 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 512 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 513 ctl_enqueue_isc((union ctl_io *)ctsio); 514} 515 516static void 517ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 518 union ctl_ha_msg *msg_info) 519{ 520 struct ctl_scsiio *ctsio; 521 522 if (msg_info->hdr.serializing_sc == NULL) { 523 printf("%s: serializing_sc == NULL!\n", __func__); 524 /* XXX KDM now what? */ 525 return; 526 } 527 528 ctsio = &msg_info->hdr.serializing_sc->scsiio; 529#if 0 530 /* 531 * Attempt to catch the situation where an I/O has 532 * been freed, and we're using it again. 533 */ 534 if (ctsio->io_hdr.io_type == 0xff) { 535 union ctl_io *tmp_io; 536 tmp_io = (union ctl_io *)ctsio; 537 printf("%s: %p use after free!\n", __func__, 538 ctsio); 539 printf("%s: type %d msg %d cdb %x iptl: " 540 "%d:%d:%d:%d tag 0x%04x " 541 "flag %#x status %x\n", 542 __func__, 543 tmp_io->io_hdr.io_type, 544 tmp_io->io_hdr.msg_type, 545 tmp_io->scsiio.cdb[0], 546 tmp_io->io_hdr.nexus.initid.id, 547 tmp_io->io_hdr.nexus.targ_port, 548 tmp_io->io_hdr.nexus.targ_target.id, 549 tmp_io->io_hdr.nexus.targ_lun, 550 (tmp_io->io_hdr.io_type == 551 CTL_IO_TASK) ? 552 tmp_io->taskio.tag_num : 553 tmp_io->scsiio.tag_num, 554 tmp_io->io_hdr.flags, 555 tmp_io->io_hdr.status); 556 } 557#endif 558 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 559 ctl_enqueue_isc((union ctl_io *)ctsio); 560} 561 562/* 563 * ISC (Inter Shelf Communication) event handler. Events from the HA 564 * subsystem come in here. 565 */ 566static void 567ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 568{ 569 struct ctl_softc *ctl_softc; 570 union ctl_io *io; 571 struct ctl_prio *presio; 572 ctl_ha_status isc_status; 573 574 ctl_softc = control_softc; 575 io = NULL; 576 577 578#if 0 579 printf("CTL: Isc Msg event %d\n", event); 580#endif 581 if (event == CTL_HA_EVT_MSG_RECV) { 582 union ctl_ha_msg msg_info; 583 584 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 585 sizeof(msg_info), /*wait*/ 0); 586#if 0 587 printf("CTL: msg_type %d\n", msg_info.msg_type); 588#endif 589 if (isc_status != 0) { 590 printf("Error receiving message, status = %d\n", 591 isc_status); 592 return; 593 } 594 595 switch (msg_info.hdr.msg_type) { 596 case CTL_MSG_SERIALIZE: 597#if 0 598 printf("Serialize\n"); 599#endif 600 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 601 if (io == NULL) { 602 printf("ctl_isc_event_handler: can't allocate " 603 "ctl_io!\n"); 604 /* Bad Juju */ 605 /* Need to set busy and send msg back */ 606 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 607 msg_info.hdr.status = CTL_SCSI_ERROR; 608 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 609 msg_info.scsi.sense_len = 0; 610 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 611 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 612 } 613 goto bailout; 614 } 615 ctl_zero_io(io); 616 // populate ctsio from msg_info 617 io->io_hdr.io_type = CTL_IO_SCSI; 618 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 619 io->io_hdr.original_sc = msg_info.hdr.original_sc; 620#if 0 621 printf("pOrig %x\n", (int)msg_info.original_sc); 622#endif 623 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 624 CTL_FLAG_IO_ACTIVE; 625 /* 626 * If we're in serialization-only mode, we don't 627 * want to go through full done processing. Thus 628 * the COPY flag. 629 * 630 * XXX KDM add another flag that is more specific. 631 */ 632 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 633 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 634 io->io_hdr.nexus = msg_info.hdr.nexus; 635#if 0 636 printf("targ %d, port %d, iid %d, lun %d\n", 637 io->io_hdr.nexus.targ_target.id, 638 io->io_hdr.nexus.targ_port, 639 io->io_hdr.nexus.initid.id, 640 io->io_hdr.nexus.targ_lun); 641#endif 642 io->scsiio.tag_num = msg_info.scsi.tag_num; 643 io->scsiio.tag_type = msg_info.scsi.tag_type; 644 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 645 CTL_MAX_CDBLEN); 646 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 647 const struct ctl_cmd_entry *entry; 648 649 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 650 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 651 io->io_hdr.flags |= 652 entry->flags & CTL_FLAG_DATA_MASK; 653 } 654 ctl_enqueue_isc(io); 655 break; 656 657 /* Performed on the Originating SC, XFER mode only */ 658 case CTL_MSG_DATAMOVE: { 659 struct ctl_sg_entry *sgl; 660 int i, j; 661 662 io = msg_info.hdr.original_sc; 663 if (io == NULL) { 664 printf("%s: original_sc == NULL!\n", __func__); 665 /* XXX KDM do something here */ 666 break; 667 } 668 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 669 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 670 /* 671 * Keep track of this, we need to send it back over 672 * when the datamove is complete. 673 */ 674 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 675 676 if (msg_info.dt.sg_sequence == 0) { 677 /* 678 * XXX KDM we use the preallocated S/G list 679 * here, but we'll need to change this to 680 * dynamic allocation if we need larger S/G 681 * lists. 682 */ 683 if (msg_info.dt.kern_sg_entries > 684 sizeof(io->io_hdr.remote_sglist) / 685 sizeof(io->io_hdr.remote_sglist[0])) { 686 printf("%s: number of S/G entries " 687 "needed %u > allocated num %zd\n", 688 __func__, 689 msg_info.dt.kern_sg_entries, 690 sizeof(io->io_hdr.remote_sglist)/ 691 sizeof(io->io_hdr.remote_sglist[0])); 692 693 /* 694 * XXX KDM send a message back to 695 * the other side to shut down the 696 * DMA. The error will come back 697 * through via the normal channel. 698 */ 699 break; 700 } 701 sgl = io->io_hdr.remote_sglist; 702 memset(sgl, 0, 703 sizeof(io->io_hdr.remote_sglist)); 704 705 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 706 707 io->scsiio.kern_sg_entries = 708 msg_info.dt.kern_sg_entries; 709 io->scsiio.rem_sg_entries = 710 msg_info.dt.kern_sg_entries; 711 io->scsiio.kern_data_len = 712 msg_info.dt.kern_data_len; 713 io->scsiio.kern_total_len = 714 msg_info.dt.kern_total_len; 715 io->scsiio.kern_data_resid = 716 msg_info.dt.kern_data_resid; 717 io->scsiio.kern_rel_offset = 718 msg_info.dt.kern_rel_offset; 719 /* 720 * Clear out per-DMA flags. 721 */ 722 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 723 /* 724 * Add per-DMA flags that are set for this 725 * particular DMA request. 726 */ 727 io->io_hdr.flags |= msg_info.dt.flags & 728 CTL_FLAG_RDMA_MASK; 729 } else 730 sgl = (struct ctl_sg_entry *) 731 io->scsiio.kern_data_ptr; 732 733 for (i = msg_info.dt.sent_sg_entries, j = 0; 734 i < (msg_info.dt.sent_sg_entries + 735 msg_info.dt.cur_sg_entries); i++, j++) { 736 sgl[i].addr = msg_info.dt.sg_list[j].addr; 737 sgl[i].len = msg_info.dt.sg_list[j].len; 738 739#if 0 740 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 741 __func__, 742 msg_info.dt.sg_list[j].addr, 743 msg_info.dt.sg_list[j].len, 744 sgl[i].addr, sgl[i].len, j, i); 745#endif 746 } 747#if 0 748 memcpy(&sgl[msg_info.dt.sent_sg_entries], 749 msg_info.dt.sg_list, 750 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 751#endif 752 753 /* 754 * If this is the last piece of the I/O, we've got 755 * the full S/G list. Queue processing in the thread. 756 * Otherwise wait for the next piece. 757 */ 758 if (msg_info.dt.sg_last != 0) 759 ctl_enqueue_isc(io); 760 break; 761 } 762 /* Performed on the Serializing (primary) SC, XFER mode only */ 763 case CTL_MSG_DATAMOVE_DONE: { 764 if (msg_info.hdr.serializing_sc == NULL) { 765 printf("%s: serializing_sc == NULL!\n", 766 __func__); 767 /* XXX KDM now what? */ 768 break; 769 } 770 /* 771 * We grab the sense information here in case 772 * there was a failure, so we can return status 773 * back to the initiator. 774 */ 775 io = msg_info.hdr.serializing_sc; 776 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 777 io->io_hdr.status = msg_info.hdr.status; 778 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 779 io->scsiio.sense_len = msg_info.scsi.sense_len; 780 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 781 io->io_hdr.port_status = msg_info.scsi.fetd_status; 782 io->scsiio.residual = msg_info.scsi.residual; 783 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 784 sizeof(io->scsiio.sense_data)); 785 ctl_enqueue_isc(io); 786 break; 787 } 788 789 /* Preformed on Originating SC, SER_ONLY mode */ 790 case CTL_MSG_R2R: 791 io = msg_info.hdr.original_sc; 792 if (io == NULL) { 793 printf("%s: Major Bummer\n", __func__); 794 return; 795 } else { 796#if 0 797 printf("pOrig %x\n",(int) ctsio); 798#endif 799 } 800 io->io_hdr.msg_type = CTL_MSG_R2R; 801 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 802 ctl_enqueue_isc(io); 803 break; 804 805 /* 806 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 807 * mode. 808 * Performed on the Originating (i.e. secondary) SC in XFER 809 * mode 810 */ 811 case CTL_MSG_FINISH_IO: 812 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 813 ctl_isc_handler_finish_xfer(ctl_softc, 814 &msg_info); 815 else 816 ctl_isc_handler_finish_ser_only(ctl_softc, 817 &msg_info); 818 break; 819 820 /* Preformed on Originating SC */ 821 case CTL_MSG_BAD_JUJU: 822 io = msg_info.hdr.original_sc; 823 if (io == NULL) { 824 printf("%s: Bad JUJU!, original_sc is NULL!\n", 825 __func__); 826 break; 827 } 828 ctl_copy_sense_data(&msg_info, io); 829 /* 830 * IO should have already been cleaned up on other 831 * SC so clear this flag so we won't send a message 832 * back to finish the IO there. 833 */ 834 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 835 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 836 837 /* io = msg_info.hdr.serializing_sc; */ 838 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 839 ctl_enqueue_isc(io); 840 break; 841 842 /* Handle resets sent from the other side */ 843 case CTL_MSG_MANAGE_TASKS: { 844 struct ctl_taskio *taskio; 845 taskio = (struct ctl_taskio *)ctl_alloc_io( 846 (void *)ctl_softc->othersc_pool); 847 if (taskio == NULL) { 848 printf("ctl_isc_event_handler: can't allocate " 849 "ctl_io!\n"); 850 /* Bad Juju */ 851 /* should I just call the proper reset func 852 here??? */ 853 goto bailout; 854 } 855 ctl_zero_io((union ctl_io *)taskio); 856 taskio->io_hdr.io_type = CTL_IO_TASK; 857 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 858 taskio->io_hdr.nexus = msg_info.hdr.nexus; 859 taskio->task_action = msg_info.task.task_action; 860 taskio->tag_num = msg_info.task.tag_num; 861 taskio->tag_type = msg_info.task.tag_type; 862#ifdef CTL_TIME_IO 863 taskio->io_hdr.start_time = time_uptime; 864 getbintime(&taskio->io_hdr.start_bt); 865#if 0 866 cs_prof_gettime(&taskio->io_hdr.start_ticks); 867#endif 868#endif /* CTL_TIME_IO */ 869 ctl_run_task((union ctl_io *)taskio); 870 break; 871 } 872 /* Persistent Reserve action which needs attention */ 873 case CTL_MSG_PERS_ACTION: 874 presio = (struct ctl_prio *)ctl_alloc_io( 875 (void *)ctl_softc->othersc_pool); 876 if (presio == NULL) { 877 printf("ctl_isc_event_handler: can't allocate " 878 "ctl_io!\n"); 879 /* Bad Juju */ 880 /* Need to set busy and send msg back */ 881 goto bailout; 882 } 883 ctl_zero_io((union ctl_io *)presio); 884 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 885 presio->pr_msg = msg_info.pr; 886 ctl_enqueue_isc((union ctl_io *)presio); 887 break; 888 case CTL_MSG_SYNC_FE: 889 rcv_sync_msg = 1; 890 break; 891 case CTL_MSG_APS_LOCK: { 892 // It's quicker to execute this then to 893 // queue it. 894 struct ctl_lun *lun; 895 struct ctl_page_index *page_index; 896 struct copan_aps_subpage *current_sp; 897 uint32_t targ_lun; 898 899 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 900 lun = ctl_softc->ctl_luns[targ_lun]; 901 mtx_lock(&lun->lun_lock); 902 page_index = &lun->mode_pages.index[index_to_aps_page]; 903 current_sp = (struct copan_aps_subpage *) 904 (page_index->page_data + 905 (page_index->page_len * CTL_PAGE_CURRENT)); 906 907 current_sp->lock_active = msg_info.aps.lock_flag; 908 mtx_unlock(&lun->lun_lock); 909 break; 910 } 911 default: 912 printf("How did I get here?\n"); 913 } 914 } else if (event == CTL_HA_EVT_MSG_SENT) { 915 if (param != CTL_HA_STATUS_SUCCESS) { 916 printf("Bad status from ctl_ha_msg_send status %d\n", 917 param); 918 } 919 return; 920 } else if (event == CTL_HA_EVT_DISCONNECT) { 921 printf("CTL: Got a disconnect from Isc\n"); 922 return; 923 } else { 924 printf("ctl_isc_event_handler: Unknown event %d\n", event); 925 return; 926 } 927 928bailout: 929 return; 930} 931 932static void 933ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 934{ 935 struct scsi_sense_data *sense; 936 937 sense = &dest->scsiio.sense_data; 938 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 939 dest->scsiio.scsi_status = src->scsi.scsi_status; 940 dest->scsiio.sense_len = src->scsi.sense_len; 941 dest->io_hdr.status = src->hdr.status; 942} 943 944static int 945ctl_init(void) 946{ 947 struct ctl_softc *softc; 948 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 949 struct ctl_port *port; 950 uint8_t sc_id =0; 951 int i, error, retval; 952 //int isc_retval; 953 954 retval = 0; 955 ctl_pause_rtr = 0; 956 rcv_sync_msg = 0; 957 958 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 959 M_WAITOK | M_ZERO); 960 softc = control_softc; 961 962 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 963 "cam/ctl"); 964 965 softc->dev->si_drv1 = softc; 966 967 /* 968 * By default, return a "bad LUN" peripheral qualifier for unknown 969 * LUNs. The user can override this default using the tunable or 970 * sysctl. See the comment in ctl_inquiry_std() for more details. 971 */ 972 softc->inquiry_pq_no_lun = 1; 973 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 974 &softc->inquiry_pq_no_lun); 975 sysctl_ctx_init(&softc->sysctl_ctx); 976 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 977 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 978 CTLFLAG_RD, 0, "CAM Target Layer"); 979 980 if (softc->sysctl_tree == NULL) { 981 printf("%s: unable to allocate sysctl tree\n", __func__); 982 destroy_dev(softc->dev); 983 free(control_softc, M_DEVBUF); 984 control_softc = NULL; 985 return (ENOMEM); 986 } 987 988 SYSCTL_ADD_INT(&softc->sysctl_ctx, 989 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 990 "inquiry_pq_no_lun", CTLFLAG_RW, 991 &softc->inquiry_pq_no_lun, 0, 992 "Report no lun possible for invalid LUNs"); 993 994 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 995 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 996 softc->open_count = 0; 997 998 /* 999 * Default to actually sending a SYNCHRONIZE CACHE command down to 1000 * the drive. 1001 */ 1002 softc->flags = CTL_FLAG_REAL_SYNC; 1003 1004 /* 1005 * In Copan's HA scheme, the "master" and "slave" roles are 1006 * figured out through the slot the controller is in. Although it 1007 * is an active/active system, someone has to be in charge. 1008 */ 1009#ifdef NEEDTOPORT 1010 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1011#endif 1012 1013 if (sc_id == 0) { 1014 softc->flags |= CTL_FLAG_MASTER_SHELF; 1015 persis_offset = 0; 1016 } else 1017 persis_offset = CTL_MAX_INITIATORS; 1018 1019 /* 1020 * XXX KDM need to figure out where we want to get our target ID 1021 * and WWID. Is it different on each port? 1022 */ 1023 softc->target.id = 0; 1024 softc->target.wwid[0] = 0x12345678; 1025 softc->target.wwid[1] = 0x87654321; 1026 STAILQ_INIT(&softc->lun_list); 1027 STAILQ_INIT(&softc->pending_lun_queue); 1028 STAILQ_INIT(&softc->fe_list); 1029 STAILQ_INIT(&softc->port_list); 1030 STAILQ_INIT(&softc->be_list); 1031 STAILQ_INIT(&softc->io_pools); 1032 ctl_tpc_init(softc); 1033 1034 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1035 &internal_pool)!= 0){ 1036 printf("ctl: can't allocate %d entry internal pool, " 1037 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1038 return (ENOMEM); 1039 } 1040 1041 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1042 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1043 printf("ctl: can't allocate %d entry emergency pool, " 1044 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1045 ctl_pool_free(internal_pool); 1046 return (ENOMEM); 1047 } 1048 1049 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1050 &other_pool) != 0) 1051 { 1052 printf("ctl: can't allocate %d entry other SC pool, " 1053 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1054 ctl_pool_free(internal_pool); 1055 ctl_pool_free(emergency_pool); 1056 return (ENOMEM); 1057 } 1058 1059 softc->internal_pool = internal_pool; 1060 softc->emergency_pool = emergency_pool; 1061 softc->othersc_pool = other_pool; 1062 1063 if (worker_threads <= 0) 1064 worker_threads = max(1, mp_ncpus / 4); 1065 if (worker_threads > CTL_MAX_THREADS) 1066 worker_threads = CTL_MAX_THREADS; 1067 1068 for (i = 0; i < worker_threads; i++) { 1069 struct ctl_thread *thr = &softc->threads[i]; 1070 1071 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1072 thr->ctl_softc = softc; 1073 STAILQ_INIT(&thr->incoming_queue); 1074 STAILQ_INIT(&thr->rtr_queue); 1075 STAILQ_INIT(&thr->done_queue); 1076 STAILQ_INIT(&thr->isc_queue); 1077 1078 error = kproc_kthread_add(ctl_work_thread, thr, 1079 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1080 if (error != 0) { 1081 printf("error creating CTL work thread!\n"); 1082 ctl_pool_free(internal_pool); 1083 ctl_pool_free(emergency_pool); 1084 ctl_pool_free(other_pool); 1085 return (error); 1086 } 1087 } 1088 error = kproc_kthread_add(ctl_lun_thread, softc, 1089 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1090 if (error != 0) { 1091 printf("error creating CTL lun thread!\n"); 1092 ctl_pool_free(internal_pool); 1093 ctl_pool_free(emergency_pool); 1094 ctl_pool_free(other_pool); 1095 return (error); 1096 } 1097 if (bootverbose) 1098 printf("ctl: CAM Target Layer loaded\n"); 1099 1100 /* 1101 * Initialize the ioctl front end. 1102 */ 1103 ctl_frontend_register(&ioctl_frontend); 1104 port = &softc->ioctl_info.port; 1105 port->frontend = &ioctl_frontend; 1106 sprintf(softc->ioctl_info.port_name, "ioctl"); 1107 port->port_type = CTL_PORT_IOCTL; 1108 port->num_requested_ctl_io = 100; 1109 port->port_name = softc->ioctl_info.port_name; 1110 port->port_online = ctl_ioctl_online; 1111 port->port_offline = ctl_ioctl_offline; 1112 port->onoff_arg = &softc->ioctl_info; 1113 port->lun_enable = ctl_ioctl_lun_enable; 1114 port->lun_disable = ctl_ioctl_lun_disable; 1115 port->targ_lun_arg = &softc->ioctl_info; 1116 port->fe_datamove = ctl_ioctl_datamove; 1117 port->fe_done = ctl_ioctl_done; 1118 port->max_targets = 15; 1119 port->max_target_id = 15; 1120 1121 if (ctl_port_register(&softc->ioctl_info.port, 1122 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1123 printf("ctl: ioctl front end registration failed, will " 1124 "continue anyway\n"); 1125 } 1126 1127#ifdef CTL_IO_DELAY 1128 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1129 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1130 sizeof(struct callout), CTL_TIMER_BYTES); 1131 return (EINVAL); 1132 } 1133#endif /* CTL_IO_DELAY */ 1134 1135 return (0); 1136} 1137 1138void 1139ctl_shutdown(void) 1140{ 1141 struct ctl_softc *softc; 1142 struct ctl_lun *lun, *next_lun; 1143 struct ctl_io_pool *pool; 1144 1145 softc = (struct ctl_softc *)control_softc; 1146 1147 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1148 printf("ctl: ioctl front end deregistration failed\n"); 1149 1150 mtx_lock(&softc->ctl_lock); 1151 1152 /* 1153 * Free up each LUN. 1154 */ 1155 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1156 next_lun = STAILQ_NEXT(lun, links); 1157 ctl_free_lun(lun); 1158 } 1159 1160 mtx_unlock(&softc->ctl_lock); 1161 1162 ctl_frontend_deregister(&ioctl_frontend); 1163 1164 /* 1165 * This will rip the rug out from under any FETDs or anyone else 1166 * that has a pool allocated. Since we increment our module 1167 * refcount any time someone outside the main CTL module allocates 1168 * a pool, we shouldn't have any problems here. The user won't be 1169 * able to unload the CTL module until client modules have 1170 * successfully unloaded. 1171 */ 1172 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1173 ctl_pool_free(pool); 1174 1175#if 0 1176 ctl_shutdown_thread(softc->work_thread); 1177 mtx_destroy(&softc->queue_lock); 1178#endif 1179 1180 ctl_tpc_shutdown(softc); 1181 mtx_destroy(&softc->pool_lock); 1182 mtx_destroy(&softc->ctl_lock); 1183 1184 destroy_dev(softc->dev); 1185 1186 sysctl_ctx_free(&softc->sysctl_ctx); 1187 1188 free(control_softc, M_DEVBUF); 1189 control_softc = NULL; 1190 1191 if (bootverbose) 1192 printf("ctl: CAM Target Layer unloaded\n"); 1193} 1194 1195static int 1196ctl_module_event_handler(module_t mod, int what, void *arg) 1197{ 1198 1199 switch (what) { 1200 case MOD_LOAD: 1201 return (ctl_init()); 1202 case MOD_UNLOAD: 1203 return (EBUSY); 1204 default: 1205 return (EOPNOTSUPP); 1206 } 1207} 1208 1209/* 1210 * XXX KDM should we do some access checks here? Bump a reference count to 1211 * prevent a CTL module from being unloaded while someone has it open? 1212 */ 1213static int 1214ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1215{ 1216 return (0); 1217} 1218 1219static int 1220ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1221{ 1222 return (0); 1223} 1224 1225int 1226ctl_port_enable(ctl_port_type port_type) 1227{ 1228 struct ctl_softc *softc; 1229 struct ctl_port *port; 1230 1231 if (ctl_is_single == 0) { 1232 union ctl_ha_msg msg_info; 1233 int isc_retval; 1234 1235#if 0 1236 printf("%s: HA mode, synchronizing frontend enable\n", 1237 __func__); 1238#endif 1239 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1240 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1241 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1242 printf("Sync msg send error retval %d\n", isc_retval); 1243 } 1244 if (!rcv_sync_msg) { 1245 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1246 sizeof(msg_info), 1); 1247 } 1248#if 0 1249 printf("CTL:Frontend Enable\n"); 1250 } else { 1251 printf("%s: single mode, skipping frontend synchronization\n", 1252 __func__); 1253#endif 1254 } 1255 1256 softc = control_softc; 1257 1258 STAILQ_FOREACH(port, &softc->port_list, links) { 1259 if (port_type & port->port_type) 1260 { 1261#if 0 1262 printf("port %d\n", port->targ_port); 1263#endif 1264 ctl_port_online(port); 1265 } 1266 } 1267 1268 return (0); 1269} 1270 1271int 1272ctl_port_disable(ctl_port_type port_type) 1273{ 1274 struct ctl_softc *softc; 1275 struct ctl_port *port; 1276 1277 softc = control_softc; 1278 1279 STAILQ_FOREACH(port, &softc->port_list, links) { 1280 if (port_type & port->port_type) 1281 ctl_port_offline(port); 1282 } 1283 1284 return (0); 1285} 1286 1287/* 1288 * Returns 0 for success, 1 for failure. 1289 * Currently the only failure mode is if there aren't enough entries 1290 * allocated. So, in case of a failure, look at num_entries_dropped, 1291 * reallocate and try again. 1292 */ 1293int 1294ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1295 int *num_entries_filled, int *num_entries_dropped, 1296 ctl_port_type port_type, int no_virtual) 1297{ 1298 struct ctl_softc *softc; 1299 struct ctl_port *port; 1300 int entries_dropped, entries_filled; 1301 int retval; 1302 int i; 1303 1304 softc = control_softc; 1305 1306 retval = 0; 1307 entries_filled = 0; 1308 entries_dropped = 0; 1309 1310 i = 0; 1311 mtx_lock(&softc->ctl_lock); 1312 STAILQ_FOREACH(port, &softc->port_list, links) { 1313 struct ctl_port_entry *entry; 1314 1315 if ((port->port_type & port_type) == 0) 1316 continue; 1317 1318 if ((no_virtual != 0) 1319 && (port->virtual_port != 0)) 1320 continue; 1321 1322 if (entries_filled >= num_entries_alloced) { 1323 entries_dropped++; 1324 continue; 1325 } 1326 entry = &entries[i]; 1327 1328 entry->port_type = port->port_type; 1329 strlcpy(entry->port_name, port->port_name, 1330 sizeof(entry->port_name)); 1331 entry->physical_port = port->physical_port; 1332 entry->virtual_port = port->virtual_port; 1333 entry->wwnn = port->wwnn; 1334 entry->wwpn = port->wwpn; 1335 1336 i++; 1337 entries_filled++; 1338 } 1339 1340 mtx_unlock(&softc->ctl_lock); 1341 1342 if (entries_dropped > 0) 1343 retval = 1; 1344 1345 *num_entries_dropped = entries_dropped; 1346 *num_entries_filled = entries_filled; 1347 1348 return (retval); 1349} 1350 1351static void 1352ctl_ioctl_online(void *arg) 1353{ 1354 struct ctl_ioctl_info *ioctl_info; 1355 1356 ioctl_info = (struct ctl_ioctl_info *)arg; 1357 1358 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1359} 1360 1361static void 1362ctl_ioctl_offline(void *arg) 1363{ 1364 struct ctl_ioctl_info *ioctl_info; 1365 1366 ioctl_info = (struct ctl_ioctl_info *)arg; 1367 1368 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1369} 1370 1371/* 1372 * Remove an initiator by port number and initiator ID. 1373 * Returns 0 for success, -1 for failure. 1374 */ 1375int 1376ctl_remove_initiator(struct ctl_port *port, int iid) 1377{ 1378 struct ctl_softc *softc = control_softc; 1379 1380 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1381 1382 if (iid > CTL_MAX_INIT_PER_PORT) { 1383 printf("%s: initiator ID %u > maximun %u!\n", 1384 __func__, iid, CTL_MAX_INIT_PER_PORT); 1385 return (-1); 1386 } 1387 1388 mtx_lock(&softc->ctl_lock); 1389 port->wwpn_iid[iid].in_use--; 1390 port->wwpn_iid[iid].last_use = time_uptime; 1391 mtx_unlock(&softc->ctl_lock); 1392 1393 return (0); 1394} 1395 1396/* 1397 * Add an initiator to the initiator map. 1398 * Returns iid for success, < 0 for failure. 1399 */ 1400int 1401ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1402{ 1403 struct ctl_softc *softc = control_softc; 1404 time_t best_time; 1405 int i, best; 1406 1407 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1408 1409 if (iid >= CTL_MAX_INIT_PER_PORT) { 1410 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1411 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1412 free(name, M_CTL); 1413 return (-1); 1414 } 1415 1416 mtx_lock(&softc->ctl_lock); 1417 1418 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1419 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1420 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1421 iid = i; 1422 break; 1423 } 1424 if (name != NULL && port->wwpn_iid[i].name != NULL && 1425 strcmp(name, port->wwpn_iid[i].name) == 0) { 1426 iid = i; 1427 break; 1428 } 1429 } 1430 } 1431 1432 if (iid < 0) { 1433 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1434 if (port->wwpn_iid[i].in_use == 0 && 1435 port->wwpn_iid[i].wwpn == 0 && 1436 port->wwpn_iid[i].name == NULL) { 1437 iid = i; 1438 break; 1439 } 1440 } 1441 } 1442 1443 if (iid < 0) { 1444 best = -1; 1445 best_time = INT32_MAX; 1446 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1447 if (port->wwpn_iid[i].in_use == 0) { 1448 if (port->wwpn_iid[i].last_use < best_time) { 1449 best = i; 1450 best_time = port->wwpn_iid[i].last_use; 1451 } 1452 } 1453 } 1454 iid = best; 1455 } 1456 1457 if (iid < 0) { 1458 mtx_unlock(&softc->ctl_lock); 1459 free(name, M_CTL); 1460 return (-2); 1461 } 1462 1463 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1464 /* 1465 * This is not an error yet. 1466 */ 1467 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1468#if 0 1469 printf("%s: port %d iid %u WWPN %#jx arrived" 1470 " again\n", __func__, port->targ_port, 1471 iid, (uintmax_t)wwpn); 1472#endif 1473 goto take; 1474 } 1475 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1476 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1477#if 0 1478 printf("%s: port %d iid %u name '%s' arrived" 1479 " again\n", __func__, port->targ_port, 1480 iid, name); 1481#endif 1482 goto take; 1483 } 1484 1485 /* 1486 * This is an error, but what do we do about it? The 1487 * driver is telling us we have a new WWPN for this 1488 * initiator ID, so we pretty much need to use it. 1489 */ 1490 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1491 " but WWPN %#jx '%s' is still at that address\n", 1492 __func__, port->targ_port, iid, wwpn, name, 1493 (uintmax_t)port->wwpn_iid[iid].wwpn, 1494 port->wwpn_iid[iid].name); 1495 1496 /* 1497 * XXX KDM clear have_ca and ua_pending on each LUN for 1498 * this initiator. 1499 */ 1500 } 1501take: 1502 free(port->wwpn_iid[iid].name, M_CTL); 1503 port->wwpn_iid[iid].name = name; 1504 port->wwpn_iid[iid].wwpn = wwpn; 1505 port->wwpn_iid[iid].in_use++; 1506 mtx_unlock(&softc->ctl_lock); 1507 1508 return (iid); 1509} 1510 1511static int 1512ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1513{ 1514 int len; 1515 1516 switch (port->port_type) { 1517 case CTL_PORT_FC: 1518 { 1519 struct scsi_transportid_fcp *id = 1520 (struct scsi_transportid_fcp *)buf; 1521 if (port->wwpn_iid[iid].wwpn == 0) 1522 return (0); 1523 memset(id, 0, sizeof(*id)); 1524 id->format_protocol = SCSI_PROTO_FC; 1525 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1526 return (sizeof(*id)); 1527 } 1528 case CTL_PORT_ISCSI: 1529 { 1530 struct scsi_transportid_iscsi_port *id = 1531 (struct scsi_transportid_iscsi_port *)buf; 1532 if (port->wwpn_iid[iid].name == NULL) 1533 return (0); 1534 memset(id, 0, 256); 1535 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1536 SCSI_PROTO_ISCSI; 1537 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1538 len = roundup2(min(len, 252), 4); 1539 scsi_ulto2b(len, id->additional_length); 1540 return (sizeof(*id) + len); 1541 } 1542 case CTL_PORT_SAS: 1543 { 1544 struct scsi_transportid_sas *id = 1545 (struct scsi_transportid_sas *)buf; 1546 if (port->wwpn_iid[iid].wwpn == 0) 1547 return (0); 1548 memset(id, 0, sizeof(*id)); 1549 id->format_protocol = SCSI_PROTO_SAS; 1550 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1551 return (sizeof(*id)); 1552 } 1553 default: 1554 { 1555 struct scsi_transportid_spi *id = 1556 (struct scsi_transportid_spi *)buf; 1557 memset(id, 0, sizeof(*id)); 1558 id->format_protocol = SCSI_PROTO_SPI; 1559 scsi_ulto2b(iid, id->scsi_addr); 1560 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1561 return (sizeof(*id)); 1562 } 1563 } 1564} 1565 1566static int 1567ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1568{ 1569 return (0); 1570} 1571 1572static int 1573ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1574{ 1575 return (0); 1576} 1577 1578/* 1579 * Data movement routine for the CTL ioctl frontend port. 1580 */ 1581static int 1582ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1583{ 1584 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1585 struct ctl_sg_entry ext_entry, kern_entry; 1586 int ext_sglen, ext_sg_entries, kern_sg_entries; 1587 int ext_sg_start, ext_offset; 1588 int len_to_copy, len_copied; 1589 int kern_watermark, ext_watermark; 1590 int ext_sglist_malloced; 1591 int i, j; 1592 1593 ext_sglist_malloced = 0; 1594 ext_sg_start = 0; 1595 ext_offset = 0; 1596 1597 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1598 1599 /* 1600 * If this flag is set, fake the data transfer. 1601 */ 1602 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1603 ctsio->ext_data_filled = ctsio->ext_data_len; 1604 goto bailout; 1605 } 1606 1607 /* 1608 * To simplify things here, if we have a single buffer, stick it in 1609 * a S/G entry and just make it a single entry S/G list. 1610 */ 1611 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1612 int len_seen; 1613 1614 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1615 1616 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1617 M_WAITOK); 1618 ext_sglist_malloced = 1; 1619 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1620 ext_sglen) != 0) { 1621 ctl_set_internal_failure(ctsio, 1622 /*sks_valid*/ 0, 1623 /*retry_count*/ 0); 1624 goto bailout; 1625 } 1626 ext_sg_entries = ctsio->ext_sg_entries; 1627 len_seen = 0; 1628 for (i = 0; i < ext_sg_entries; i++) { 1629 if ((len_seen + ext_sglist[i].len) >= 1630 ctsio->ext_data_filled) { 1631 ext_sg_start = i; 1632 ext_offset = ctsio->ext_data_filled - len_seen; 1633 break; 1634 } 1635 len_seen += ext_sglist[i].len; 1636 } 1637 } else { 1638 ext_sglist = &ext_entry; 1639 ext_sglist->addr = ctsio->ext_data_ptr; 1640 ext_sglist->len = ctsio->ext_data_len; 1641 ext_sg_entries = 1; 1642 ext_sg_start = 0; 1643 ext_offset = ctsio->ext_data_filled; 1644 } 1645 1646 if (ctsio->kern_sg_entries > 0) { 1647 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1648 kern_sg_entries = ctsio->kern_sg_entries; 1649 } else { 1650 kern_sglist = &kern_entry; 1651 kern_sglist->addr = ctsio->kern_data_ptr; 1652 kern_sglist->len = ctsio->kern_data_len; 1653 kern_sg_entries = 1; 1654 } 1655 1656 1657 kern_watermark = 0; 1658 ext_watermark = ext_offset; 1659 len_copied = 0; 1660 for (i = ext_sg_start, j = 0; 1661 i < ext_sg_entries && j < kern_sg_entries;) { 1662 uint8_t *ext_ptr, *kern_ptr; 1663 1664 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1665 kern_sglist[j].len - kern_watermark); 1666 1667 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1668 ext_ptr = ext_ptr + ext_watermark; 1669 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1670 /* 1671 * XXX KDM fix this! 1672 */ 1673 panic("need to implement bus address support"); 1674#if 0 1675 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1676#endif 1677 } else 1678 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1679 kern_ptr = kern_ptr + kern_watermark; 1680 1681 kern_watermark += len_to_copy; 1682 ext_watermark += len_to_copy; 1683 1684 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1685 CTL_FLAG_DATA_IN) { 1686 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1687 "bytes to user\n", len_to_copy)); 1688 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1689 "to %p\n", kern_ptr, ext_ptr)); 1690 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1691 ctl_set_internal_failure(ctsio, 1692 /*sks_valid*/ 0, 1693 /*retry_count*/ 0); 1694 goto bailout; 1695 } 1696 } else { 1697 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1698 "bytes from user\n", len_to_copy)); 1699 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1700 "to %p\n", ext_ptr, kern_ptr)); 1701 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1702 ctl_set_internal_failure(ctsio, 1703 /*sks_valid*/ 0, 1704 /*retry_count*/0); 1705 goto bailout; 1706 } 1707 } 1708 1709 len_copied += len_to_copy; 1710 1711 if (ext_sglist[i].len == ext_watermark) { 1712 i++; 1713 ext_watermark = 0; 1714 } 1715 1716 if (kern_sglist[j].len == kern_watermark) { 1717 j++; 1718 kern_watermark = 0; 1719 } 1720 } 1721 1722 ctsio->ext_data_filled += len_copied; 1723 1724 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1725 "kern_sg_entries: %d\n", ext_sg_entries, 1726 kern_sg_entries)); 1727 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1728 "kern_data_len = %d\n", ctsio->ext_data_len, 1729 ctsio->kern_data_len)); 1730 1731 1732 /* XXX KDM set residual?? */ 1733bailout: 1734 1735 if (ext_sglist_malloced != 0) 1736 free(ext_sglist, M_CTL); 1737 1738 return (CTL_RETVAL_COMPLETE); 1739} 1740 1741/* 1742 * Serialize a command that went down the "wrong" side, and so was sent to 1743 * this controller for execution. The logic is a little different than the 1744 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1745 * sent back to the other side, but in the success case, we execute the 1746 * command on this side (XFER mode) or tell the other side to execute it 1747 * (SER_ONLY mode). 1748 */ 1749static int 1750ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1751{ 1752 struct ctl_softc *ctl_softc; 1753 union ctl_ha_msg msg_info; 1754 struct ctl_lun *lun; 1755 int retval = 0; 1756 uint32_t targ_lun; 1757 1758 ctl_softc = control_softc; 1759 1760 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1761 lun = ctl_softc->ctl_luns[targ_lun]; 1762 if (lun==NULL) 1763 { 1764 /* 1765 * Why isn't LUN defined? The other side wouldn't 1766 * send a cmd if the LUN is undefined. 1767 */ 1768 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1769 1770 /* "Logical unit not supported" */ 1771 ctl_set_sense_data(&msg_info.scsi.sense_data, 1772 lun, 1773 /*sense_format*/SSD_TYPE_NONE, 1774 /*current_error*/ 1, 1775 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1776 /*asc*/ 0x25, 1777 /*ascq*/ 0x00, 1778 SSD_ELEM_NONE); 1779 1780 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1781 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1782 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1783 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1784 msg_info.hdr.serializing_sc = NULL; 1785 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1786 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1787 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1788 } 1789 return(1); 1790 1791 } 1792 1793 mtx_lock(&lun->lun_lock); 1794 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1795 1796 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1797 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1798 ooa_links))) { 1799 case CTL_ACTION_BLOCK: 1800 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1801 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1802 blocked_links); 1803 break; 1804 case CTL_ACTION_PASS: 1805 case CTL_ACTION_SKIP: 1806 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1807 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1808 ctl_enqueue_rtr((union ctl_io *)ctsio); 1809 } else { 1810 1811 /* send msg back to other side */ 1812 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1813 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1814 msg_info.hdr.msg_type = CTL_MSG_R2R; 1815#if 0 1816 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1817#endif 1818 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1819 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1820 } 1821 } 1822 break; 1823 case CTL_ACTION_OVERLAP: 1824 /* OVERLAPPED COMMANDS ATTEMPTED */ 1825 ctl_set_sense_data(&msg_info.scsi.sense_data, 1826 lun, 1827 /*sense_format*/SSD_TYPE_NONE, 1828 /*current_error*/ 1, 1829 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1830 /*asc*/ 0x4E, 1831 /*ascq*/ 0x00, 1832 SSD_ELEM_NONE); 1833 1834 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1835 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1836 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1837 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1838 msg_info.hdr.serializing_sc = NULL; 1839 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1840#if 0 1841 printf("BAD JUJU:Major Bummer Overlap\n"); 1842#endif 1843 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1844 retval = 1; 1845 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1846 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1847 } 1848 break; 1849 case CTL_ACTION_OVERLAP_TAG: 1850 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1851 ctl_set_sense_data(&msg_info.scsi.sense_data, 1852 lun, 1853 /*sense_format*/SSD_TYPE_NONE, 1854 /*current_error*/ 1, 1855 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1856 /*asc*/ 0x4D, 1857 /*ascq*/ ctsio->tag_num & 0xff, 1858 SSD_ELEM_NONE); 1859 1860 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1861 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1862 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1863 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1864 msg_info.hdr.serializing_sc = NULL; 1865 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1866#if 0 1867 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1868#endif 1869 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1870 retval = 1; 1871 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1872 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1873 } 1874 break; 1875 case CTL_ACTION_ERROR: 1876 default: 1877 /* "Internal target failure" */ 1878 ctl_set_sense_data(&msg_info.scsi.sense_data, 1879 lun, 1880 /*sense_format*/SSD_TYPE_NONE, 1881 /*current_error*/ 1, 1882 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1883 /*asc*/ 0x44, 1884 /*ascq*/ 0x00, 1885 SSD_ELEM_NONE); 1886 1887 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1888 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1889 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1890 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1891 msg_info.hdr.serializing_sc = NULL; 1892 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1893#if 0 1894 printf("BAD JUJU:Major Bummer HW Error\n"); 1895#endif 1896 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1897 retval = 1; 1898 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1899 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1900 } 1901 break; 1902 } 1903 mtx_unlock(&lun->lun_lock); 1904 return (retval); 1905} 1906 1907static int 1908ctl_ioctl_submit_wait(union ctl_io *io) 1909{ 1910 struct ctl_fe_ioctl_params params; 1911 ctl_fe_ioctl_state last_state; 1912 int done, retval; 1913 1914 retval = 0; 1915 1916 bzero(¶ms, sizeof(params)); 1917 1918 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1919 cv_init(¶ms.sem, "ctlioccv"); 1920 params.state = CTL_IOCTL_INPROG; 1921 last_state = params.state; 1922 1923 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1924 1925 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1926 1927 /* This shouldn't happen */ 1928 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1929 return (retval); 1930 1931 done = 0; 1932 1933 do { 1934 mtx_lock(¶ms.ioctl_mtx); 1935 /* 1936 * Check the state here, and don't sleep if the state has 1937 * already changed (i.e. wakeup has already occured, but we 1938 * weren't waiting yet). 1939 */ 1940 if (params.state == last_state) { 1941 /* XXX KDM cv_wait_sig instead? */ 1942 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1943 } 1944 last_state = params.state; 1945 1946 switch (params.state) { 1947 case CTL_IOCTL_INPROG: 1948 /* Why did we wake up? */ 1949 /* XXX KDM error here? */ 1950 mtx_unlock(¶ms.ioctl_mtx); 1951 break; 1952 case CTL_IOCTL_DATAMOVE: 1953 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1954 1955 /* 1956 * change last_state back to INPROG to avoid 1957 * deadlock on subsequent data moves. 1958 */ 1959 params.state = last_state = CTL_IOCTL_INPROG; 1960 1961 mtx_unlock(¶ms.ioctl_mtx); 1962 ctl_ioctl_do_datamove(&io->scsiio); 1963 /* 1964 * Note that in some cases, most notably writes, 1965 * this will queue the I/O and call us back later. 1966 * In other cases, generally reads, this routine 1967 * will immediately call back and wake us up, 1968 * probably using our own context. 1969 */ 1970 io->scsiio.be_move_done(io); 1971 break; 1972 case CTL_IOCTL_DONE: 1973 mtx_unlock(¶ms.ioctl_mtx); 1974 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1975 done = 1; 1976 break; 1977 default: 1978 mtx_unlock(¶ms.ioctl_mtx); 1979 /* XXX KDM error here? */ 1980 break; 1981 } 1982 } while (done == 0); 1983 1984 mtx_destroy(¶ms.ioctl_mtx); 1985 cv_destroy(¶ms.sem); 1986 1987 return (CTL_RETVAL_COMPLETE); 1988} 1989 1990static void 1991ctl_ioctl_datamove(union ctl_io *io) 1992{ 1993 struct ctl_fe_ioctl_params *params; 1994 1995 params = (struct ctl_fe_ioctl_params *) 1996 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1997 1998 mtx_lock(¶ms->ioctl_mtx); 1999 params->state = CTL_IOCTL_DATAMOVE; 2000 cv_broadcast(¶ms->sem); 2001 mtx_unlock(¶ms->ioctl_mtx); 2002} 2003 2004static void 2005ctl_ioctl_done(union ctl_io *io) 2006{ 2007 struct ctl_fe_ioctl_params *params; 2008 2009 params = (struct ctl_fe_ioctl_params *) 2010 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2011 2012 mtx_lock(¶ms->ioctl_mtx); 2013 params->state = CTL_IOCTL_DONE; 2014 cv_broadcast(¶ms->sem); 2015 mtx_unlock(¶ms->ioctl_mtx); 2016} 2017 2018static void 2019ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2020{ 2021 struct ctl_fe_ioctl_startstop_info *sd_info; 2022 2023 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2024 2025 sd_info->hs_info.status = metatask->status; 2026 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2027 sd_info->hs_info.luns_complete = 2028 metatask->taskinfo.startstop.luns_complete; 2029 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2030 2031 cv_broadcast(&sd_info->sem); 2032} 2033 2034static void 2035ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2036{ 2037 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2038 2039 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2040 2041 mtx_lock(fe_bbr_info->lock); 2042 fe_bbr_info->bbr_info->status = metatask->status; 2043 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2044 fe_bbr_info->wakeup_done = 1; 2045 mtx_unlock(fe_bbr_info->lock); 2046 2047 cv_broadcast(&fe_bbr_info->sem); 2048} 2049 2050/* 2051 * Returns 0 for success, errno for failure. 2052 */ 2053static int 2054ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2055 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2056{ 2057 union ctl_io *io; 2058 int retval; 2059 2060 retval = 0; 2061 2062 mtx_lock(&lun->lun_lock); 2063 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2064 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2065 ooa_links)) { 2066 struct ctl_ooa_entry *entry; 2067 2068 /* 2069 * If we've got more than we can fit, just count the 2070 * remaining entries. 2071 */ 2072 if (*cur_fill_num >= ooa_hdr->alloc_num) 2073 continue; 2074 2075 entry = &kern_entries[*cur_fill_num]; 2076 2077 entry->tag_num = io->scsiio.tag_num; 2078 entry->lun_num = lun->lun; 2079#ifdef CTL_TIME_IO 2080 entry->start_bt = io->io_hdr.start_bt; 2081#endif 2082 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2083 entry->cdb_len = io->scsiio.cdb_len; 2084 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2085 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2086 2087 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2088 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2089 2090 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2091 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2092 2093 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2094 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2095 2096 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2097 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2098 } 2099 mtx_unlock(&lun->lun_lock); 2100 2101 return (retval); 2102} 2103 2104static void * 2105ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2106 size_t error_str_len) 2107{ 2108 void *kptr; 2109 2110 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2111 2112 if (copyin(user_addr, kptr, len) != 0) { 2113 snprintf(error_str, error_str_len, "Error copying %d bytes " 2114 "from user address %p to kernel address %p", len, 2115 user_addr, kptr); 2116 free(kptr, M_CTL); 2117 return (NULL); 2118 } 2119 2120 return (kptr); 2121} 2122 2123static void 2124ctl_free_args(int num_args, struct ctl_be_arg *args) 2125{ 2126 int i; 2127 2128 if (args == NULL) 2129 return; 2130 2131 for (i = 0; i < num_args; i++) { 2132 free(args[i].kname, M_CTL); 2133 free(args[i].kvalue, M_CTL); 2134 } 2135 2136 free(args, M_CTL); 2137} 2138 2139static struct ctl_be_arg * 2140ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2141 char *error_str, size_t error_str_len) 2142{ 2143 struct ctl_be_arg *args; 2144 int i; 2145 2146 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2147 error_str, error_str_len); 2148 2149 if (args == NULL) 2150 goto bailout; 2151 2152 for (i = 0; i < num_args; i++) { 2153 args[i].kname = NULL; 2154 args[i].kvalue = NULL; 2155 } 2156 2157 for (i = 0; i < num_args; i++) { 2158 uint8_t *tmpptr; 2159 2160 args[i].kname = ctl_copyin_alloc(args[i].name, 2161 args[i].namelen, error_str, error_str_len); 2162 if (args[i].kname == NULL) 2163 goto bailout; 2164 2165 if (args[i].kname[args[i].namelen - 1] != '\0') { 2166 snprintf(error_str, error_str_len, "Argument %d " 2167 "name is not NUL-terminated", i); 2168 goto bailout; 2169 } 2170 2171 if (args[i].flags & CTL_BEARG_RD) { 2172 tmpptr = ctl_copyin_alloc(args[i].value, 2173 args[i].vallen, error_str, error_str_len); 2174 if (tmpptr == NULL) 2175 goto bailout; 2176 if ((args[i].flags & CTL_BEARG_ASCII) 2177 && (tmpptr[args[i].vallen - 1] != '\0')) { 2178 snprintf(error_str, error_str_len, "Argument " 2179 "%d value is not NUL-terminated", i); 2180 goto bailout; 2181 } 2182 args[i].kvalue = tmpptr; 2183 } else { 2184 args[i].kvalue = malloc(args[i].vallen, 2185 M_CTL, M_WAITOK | M_ZERO); 2186 } 2187 } 2188 2189 return (args); 2190bailout: 2191 2192 ctl_free_args(num_args, args); 2193 2194 return (NULL); 2195} 2196 2197static void 2198ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2199{ 2200 int i; 2201 2202 for (i = 0; i < num_args; i++) { 2203 if (args[i].flags & CTL_BEARG_WR) 2204 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2205 } 2206} 2207 2208/* 2209 * Escape characters that are illegal or not recommended in XML. 2210 */ 2211int 2212ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2213{ 2214 int retval; 2215 2216 retval = 0; 2217 2218 for (; *str; str++) { 2219 switch (*str) { 2220 case '&': 2221 retval = sbuf_printf(sb, "&"); 2222 break; 2223 case '>': 2224 retval = sbuf_printf(sb, ">"); 2225 break; 2226 case '<': 2227 retval = sbuf_printf(sb, "<"); 2228 break; 2229 default: 2230 retval = sbuf_putc(sb, *str); 2231 break; 2232 } 2233 2234 if (retval != 0) 2235 break; 2236 2237 } 2238 2239 return (retval); 2240} 2241 2242static void 2243ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2244{ 2245 struct scsi_vpd_id_descriptor *desc; 2246 int i; 2247 2248 if (id == NULL || id->len < 4) 2249 return; 2250 desc = (struct scsi_vpd_id_descriptor *)id->data; 2251 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2252 case SVPD_ID_TYPE_T10: 2253 sbuf_printf(sb, "t10."); 2254 break; 2255 case SVPD_ID_TYPE_EUI64: 2256 sbuf_printf(sb, "eui."); 2257 break; 2258 case SVPD_ID_TYPE_NAA: 2259 sbuf_printf(sb, "naa."); 2260 break; 2261 case SVPD_ID_TYPE_SCSI_NAME: 2262 break; 2263 } 2264 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2265 case SVPD_ID_CODESET_BINARY: 2266 for (i = 0; i < desc->length; i++) 2267 sbuf_printf(sb, "%02x", desc->identifier[i]); 2268 break; 2269 case SVPD_ID_CODESET_ASCII: 2270 sbuf_printf(sb, "%.*s", (int)desc->length, 2271 (char *)desc->identifier); 2272 break; 2273 case SVPD_ID_CODESET_UTF8: 2274 sbuf_printf(sb, "%s", (char *)desc->identifier); 2275 break; 2276 } 2277} 2278 2279static int 2280ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2281 struct thread *td) 2282{ 2283 struct ctl_softc *softc; 2284 int retval; 2285 2286 softc = control_softc; 2287 2288 retval = 0; 2289 2290 switch (cmd) { 2291 case CTL_IO: { 2292 union ctl_io *io; 2293 void *pool_tmp; 2294 2295 /* 2296 * If we haven't been "enabled", don't allow any SCSI I/O 2297 * to this FETD. 2298 */ 2299 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2300 retval = EPERM; 2301 break; 2302 } 2303 2304 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2305 if (io == NULL) { 2306 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2307 retval = ENOSPC; 2308 break; 2309 } 2310 2311 /* 2312 * Need to save the pool reference so it doesn't get 2313 * spammed by the user's ctl_io. 2314 */ 2315 pool_tmp = io->io_hdr.pool; 2316 2317 memcpy(io, (void *)addr, sizeof(*io)); 2318 2319 io->io_hdr.pool = pool_tmp; 2320 /* 2321 * No status yet, so make sure the status is set properly. 2322 */ 2323 io->io_hdr.status = CTL_STATUS_NONE; 2324 2325 /* 2326 * The user sets the initiator ID, target and LUN IDs. 2327 */ 2328 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2329 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2330 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2331 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2332 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2333 2334 retval = ctl_ioctl_submit_wait(io); 2335 2336 if (retval != 0) { 2337 ctl_free_io(io); 2338 break; 2339 } 2340 2341 memcpy((void *)addr, io, sizeof(*io)); 2342 2343 /* return this to our pool */ 2344 ctl_free_io(io); 2345 2346 break; 2347 } 2348 case CTL_ENABLE_PORT: 2349 case CTL_DISABLE_PORT: 2350 case CTL_SET_PORT_WWNS: { 2351 struct ctl_port *port; 2352 struct ctl_port_entry *entry; 2353 2354 entry = (struct ctl_port_entry *)addr; 2355 2356 mtx_lock(&softc->ctl_lock); 2357 STAILQ_FOREACH(port, &softc->port_list, links) { 2358 int action, done; 2359 2360 action = 0; 2361 done = 0; 2362 2363 if ((entry->port_type == CTL_PORT_NONE) 2364 && (entry->targ_port == port->targ_port)) { 2365 /* 2366 * If the user only wants to enable or 2367 * disable or set WWNs on a specific port, 2368 * do the operation and we're done. 2369 */ 2370 action = 1; 2371 done = 1; 2372 } else if (entry->port_type & port->port_type) { 2373 /* 2374 * Compare the user's type mask with the 2375 * particular frontend type to see if we 2376 * have a match. 2377 */ 2378 action = 1; 2379 done = 0; 2380 2381 /* 2382 * Make sure the user isn't trying to set 2383 * WWNs on multiple ports at the same time. 2384 */ 2385 if (cmd == CTL_SET_PORT_WWNS) { 2386 printf("%s: Can't set WWNs on " 2387 "multiple ports\n", __func__); 2388 retval = EINVAL; 2389 break; 2390 } 2391 } 2392 if (action != 0) { 2393 /* 2394 * XXX KDM we have to drop the lock here, 2395 * because the online/offline operations 2396 * can potentially block. We need to 2397 * reference count the frontends so they 2398 * can't go away, 2399 */ 2400 mtx_unlock(&softc->ctl_lock); 2401 2402 if (cmd == CTL_ENABLE_PORT) { 2403 struct ctl_lun *lun; 2404 2405 STAILQ_FOREACH(lun, &softc->lun_list, 2406 links) { 2407 port->lun_enable(port->targ_lun_arg, 2408 lun->target, 2409 lun->lun); 2410 } 2411 2412 ctl_port_online(port); 2413 } else if (cmd == CTL_DISABLE_PORT) { 2414 struct ctl_lun *lun; 2415 2416 ctl_port_offline(port); 2417 2418 STAILQ_FOREACH(lun, &softc->lun_list, 2419 links) { 2420 port->lun_disable( 2421 port->targ_lun_arg, 2422 lun->target, 2423 lun->lun); 2424 } 2425 } 2426 2427 mtx_lock(&softc->ctl_lock); 2428 2429 if (cmd == CTL_SET_PORT_WWNS) 2430 ctl_port_set_wwns(port, 2431 (entry->flags & CTL_PORT_WWNN_VALID) ? 2432 1 : 0, entry->wwnn, 2433 (entry->flags & CTL_PORT_WWPN_VALID) ? 2434 1 : 0, entry->wwpn); 2435 } 2436 if (done != 0) 2437 break; 2438 } 2439 mtx_unlock(&softc->ctl_lock); 2440 break; 2441 } 2442 case CTL_GET_PORT_LIST: { 2443 struct ctl_port *port; 2444 struct ctl_port_list *list; 2445 int i; 2446 2447 list = (struct ctl_port_list *)addr; 2448 2449 if (list->alloc_len != (list->alloc_num * 2450 sizeof(struct ctl_port_entry))) { 2451 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2452 "alloc_num %u * sizeof(struct ctl_port_entry) " 2453 "%zu\n", __func__, list->alloc_len, 2454 list->alloc_num, sizeof(struct ctl_port_entry)); 2455 retval = EINVAL; 2456 break; 2457 } 2458 list->fill_len = 0; 2459 list->fill_num = 0; 2460 list->dropped_num = 0; 2461 i = 0; 2462 mtx_lock(&softc->ctl_lock); 2463 STAILQ_FOREACH(port, &softc->port_list, links) { 2464 struct ctl_port_entry entry, *list_entry; 2465 2466 if (list->fill_num >= list->alloc_num) { 2467 list->dropped_num++; 2468 continue; 2469 } 2470 2471 entry.port_type = port->port_type; 2472 strlcpy(entry.port_name, port->port_name, 2473 sizeof(entry.port_name)); 2474 entry.targ_port = port->targ_port; 2475 entry.physical_port = port->physical_port; 2476 entry.virtual_port = port->virtual_port; 2477 entry.wwnn = port->wwnn; 2478 entry.wwpn = port->wwpn; 2479 if (port->status & CTL_PORT_STATUS_ONLINE) 2480 entry.online = 1; 2481 else 2482 entry.online = 0; 2483 2484 list_entry = &list->entries[i]; 2485 2486 retval = copyout(&entry, list_entry, sizeof(entry)); 2487 if (retval != 0) { 2488 printf("%s: CTL_GET_PORT_LIST: copyout " 2489 "returned %d\n", __func__, retval); 2490 break; 2491 } 2492 i++; 2493 list->fill_num++; 2494 list->fill_len += sizeof(entry); 2495 } 2496 mtx_unlock(&softc->ctl_lock); 2497 2498 /* 2499 * If this is non-zero, we had a copyout fault, so there's 2500 * probably no point in attempting to set the status inside 2501 * the structure. 2502 */ 2503 if (retval != 0) 2504 break; 2505 2506 if (list->dropped_num > 0) 2507 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2508 else 2509 list->status = CTL_PORT_LIST_OK; 2510 break; 2511 } 2512 case CTL_DUMP_OOA: { 2513 struct ctl_lun *lun; 2514 union ctl_io *io; 2515 char printbuf[128]; 2516 struct sbuf sb; 2517 2518 mtx_lock(&softc->ctl_lock); 2519 printf("Dumping OOA queues:\n"); 2520 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2521 mtx_lock(&lun->lun_lock); 2522 for (io = (union ctl_io *)TAILQ_FIRST( 2523 &lun->ooa_queue); io != NULL; 2524 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2525 ooa_links)) { 2526 sbuf_new(&sb, printbuf, sizeof(printbuf), 2527 SBUF_FIXEDLEN); 2528 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2529 (intmax_t)lun->lun, 2530 io->scsiio.tag_num, 2531 (io->io_hdr.flags & 2532 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2533 (io->io_hdr.flags & 2534 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2535 (io->io_hdr.flags & 2536 CTL_FLAG_ABORT) ? " ABORT" : "", 2537 (io->io_hdr.flags & 2538 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2539 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2540 sbuf_finish(&sb); 2541 printf("%s\n", sbuf_data(&sb)); 2542 } 2543 mtx_unlock(&lun->lun_lock); 2544 } 2545 printf("OOA queues dump done\n"); 2546 mtx_unlock(&softc->ctl_lock); 2547 break; 2548 } 2549 case CTL_GET_OOA: { 2550 struct ctl_lun *lun; 2551 struct ctl_ooa *ooa_hdr; 2552 struct ctl_ooa_entry *entries; 2553 uint32_t cur_fill_num; 2554 2555 ooa_hdr = (struct ctl_ooa *)addr; 2556 2557 if ((ooa_hdr->alloc_len == 0) 2558 || (ooa_hdr->alloc_num == 0)) { 2559 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2560 "must be non-zero\n", __func__, 2561 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2562 retval = EINVAL; 2563 break; 2564 } 2565 2566 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2567 sizeof(struct ctl_ooa_entry))) { 2568 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2569 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2570 __func__, ooa_hdr->alloc_len, 2571 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2572 retval = EINVAL; 2573 break; 2574 } 2575 2576 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2577 if (entries == NULL) { 2578 printf("%s: could not allocate %d bytes for OOA " 2579 "dump\n", __func__, ooa_hdr->alloc_len); 2580 retval = ENOMEM; 2581 break; 2582 } 2583 2584 mtx_lock(&softc->ctl_lock); 2585 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2586 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2587 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2588 mtx_unlock(&softc->ctl_lock); 2589 free(entries, M_CTL); 2590 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2591 __func__, (uintmax_t)ooa_hdr->lun_num); 2592 retval = EINVAL; 2593 break; 2594 } 2595 2596 cur_fill_num = 0; 2597 2598 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2599 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2600 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2601 ooa_hdr, entries); 2602 if (retval != 0) 2603 break; 2604 } 2605 if (retval != 0) { 2606 mtx_unlock(&softc->ctl_lock); 2607 free(entries, M_CTL); 2608 break; 2609 } 2610 } else { 2611 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2612 2613 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2614 entries); 2615 } 2616 mtx_unlock(&softc->ctl_lock); 2617 2618 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2619 ooa_hdr->fill_len = ooa_hdr->fill_num * 2620 sizeof(struct ctl_ooa_entry); 2621 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2622 if (retval != 0) { 2623 printf("%s: error copying out %d bytes for OOA dump\n", 2624 __func__, ooa_hdr->fill_len); 2625 } 2626 2627 getbintime(&ooa_hdr->cur_bt); 2628 2629 if (cur_fill_num > ooa_hdr->alloc_num) { 2630 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2631 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2632 } else { 2633 ooa_hdr->dropped_num = 0; 2634 ooa_hdr->status = CTL_OOA_OK; 2635 } 2636 2637 free(entries, M_CTL); 2638 break; 2639 } 2640 case CTL_CHECK_OOA: { 2641 union ctl_io *io; 2642 struct ctl_lun *lun; 2643 struct ctl_ooa_info *ooa_info; 2644 2645 2646 ooa_info = (struct ctl_ooa_info *)addr; 2647 2648 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2649 ooa_info->status = CTL_OOA_INVALID_LUN; 2650 break; 2651 } 2652 mtx_lock(&softc->ctl_lock); 2653 lun = softc->ctl_luns[ooa_info->lun_id]; 2654 if (lun == NULL) { 2655 mtx_unlock(&softc->ctl_lock); 2656 ooa_info->status = CTL_OOA_INVALID_LUN; 2657 break; 2658 } 2659 mtx_lock(&lun->lun_lock); 2660 mtx_unlock(&softc->ctl_lock); 2661 ooa_info->num_entries = 0; 2662 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2663 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2664 &io->io_hdr, ooa_links)) { 2665 ooa_info->num_entries++; 2666 } 2667 mtx_unlock(&lun->lun_lock); 2668 2669 ooa_info->status = CTL_OOA_SUCCESS; 2670 2671 break; 2672 } 2673 case CTL_HARD_START: 2674 case CTL_HARD_STOP: { 2675 struct ctl_fe_ioctl_startstop_info ss_info; 2676 struct cfi_metatask *metatask; 2677 struct mtx hs_mtx; 2678 2679 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2680 2681 cv_init(&ss_info.sem, "hard start/stop cv" ); 2682 2683 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2684 if (metatask == NULL) { 2685 retval = ENOMEM; 2686 mtx_destroy(&hs_mtx); 2687 break; 2688 } 2689 2690 if (cmd == CTL_HARD_START) 2691 metatask->tasktype = CFI_TASK_STARTUP; 2692 else 2693 metatask->tasktype = CFI_TASK_SHUTDOWN; 2694 2695 metatask->callback = ctl_ioctl_hard_startstop_callback; 2696 metatask->callback_arg = &ss_info; 2697 2698 cfi_action(metatask); 2699 2700 /* Wait for the callback */ 2701 mtx_lock(&hs_mtx); 2702 cv_wait_sig(&ss_info.sem, &hs_mtx); 2703 mtx_unlock(&hs_mtx); 2704 2705 /* 2706 * All information has been copied from the metatask by the 2707 * time cv_broadcast() is called, so we free the metatask here. 2708 */ 2709 cfi_free_metatask(metatask); 2710 2711 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2712 2713 mtx_destroy(&hs_mtx); 2714 break; 2715 } 2716 case CTL_BBRREAD: { 2717 struct ctl_bbrread_info *bbr_info; 2718 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2719 struct mtx bbr_mtx; 2720 struct cfi_metatask *metatask; 2721 2722 bbr_info = (struct ctl_bbrread_info *)addr; 2723 2724 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2725 2726 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2727 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2728 2729 fe_bbr_info.bbr_info = bbr_info; 2730 fe_bbr_info.lock = &bbr_mtx; 2731 2732 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2733 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2734 2735 if (metatask == NULL) { 2736 mtx_destroy(&bbr_mtx); 2737 cv_destroy(&fe_bbr_info.sem); 2738 retval = ENOMEM; 2739 break; 2740 } 2741 metatask->tasktype = CFI_TASK_BBRREAD; 2742 metatask->callback = ctl_ioctl_bbrread_callback; 2743 metatask->callback_arg = &fe_bbr_info; 2744 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2745 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2746 metatask->taskinfo.bbrread.len = bbr_info->len; 2747 2748 cfi_action(metatask); 2749 2750 mtx_lock(&bbr_mtx); 2751 while (fe_bbr_info.wakeup_done == 0) 2752 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2753 mtx_unlock(&bbr_mtx); 2754 2755 bbr_info->status = metatask->status; 2756 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2757 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2758 memcpy(&bbr_info->sense_data, 2759 &metatask->taskinfo.bbrread.sense_data, 2760 ctl_min(sizeof(bbr_info->sense_data), 2761 sizeof(metatask->taskinfo.bbrread.sense_data))); 2762 2763 cfi_free_metatask(metatask); 2764 2765 mtx_destroy(&bbr_mtx); 2766 cv_destroy(&fe_bbr_info.sem); 2767 2768 break; 2769 } 2770 case CTL_DELAY_IO: { 2771 struct ctl_io_delay_info *delay_info; 2772#ifdef CTL_IO_DELAY 2773 struct ctl_lun *lun; 2774#endif /* CTL_IO_DELAY */ 2775 2776 delay_info = (struct ctl_io_delay_info *)addr; 2777 2778#ifdef CTL_IO_DELAY 2779 mtx_lock(&softc->ctl_lock); 2780 2781 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2782 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2783 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2784 } else { 2785 lun = softc->ctl_luns[delay_info->lun_id]; 2786 mtx_lock(&lun->lun_lock); 2787 2788 delay_info->status = CTL_DELAY_STATUS_OK; 2789 2790 switch (delay_info->delay_type) { 2791 case CTL_DELAY_TYPE_CONT: 2792 break; 2793 case CTL_DELAY_TYPE_ONESHOT: 2794 break; 2795 default: 2796 delay_info->status = 2797 CTL_DELAY_STATUS_INVALID_TYPE; 2798 break; 2799 } 2800 2801 switch (delay_info->delay_loc) { 2802 case CTL_DELAY_LOC_DATAMOVE: 2803 lun->delay_info.datamove_type = 2804 delay_info->delay_type; 2805 lun->delay_info.datamove_delay = 2806 delay_info->delay_secs; 2807 break; 2808 case CTL_DELAY_LOC_DONE: 2809 lun->delay_info.done_type = 2810 delay_info->delay_type; 2811 lun->delay_info.done_delay = 2812 delay_info->delay_secs; 2813 break; 2814 default: 2815 delay_info->status = 2816 CTL_DELAY_STATUS_INVALID_LOC; 2817 break; 2818 } 2819 mtx_unlock(&lun->lun_lock); 2820 } 2821 2822 mtx_unlock(&softc->ctl_lock); 2823#else 2824 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2825#endif /* CTL_IO_DELAY */ 2826 break; 2827 } 2828 case CTL_REALSYNC_SET: { 2829 int *syncstate; 2830 2831 syncstate = (int *)addr; 2832 2833 mtx_lock(&softc->ctl_lock); 2834 switch (*syncstate) { 2835 case 0: 2836 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2837 break; 2838 case 1: 2839 softc->flags |= CTL_FLAG_REAL_SYNC; 2840 break; 2841 default: 2842 retval = EINVAL; 2843 break; 2844 } 2845 mtx_unlock(&softc->ctl_lock); 2846 break; 2847 } 2848 case CTL_REALSYNC_GET: { 2849 int *syncstate; 2850 2851 syncstate = (int*)addr; 2852 2853 mtx_lock(&softc->ctl_lock); 2854 if (softc->flags & CTL_FLAG_REAL_SYNC) 2855 *syncstate = 1; 2856 else 2857 *syncstate = 0; 2858 mtx_unlock(&softc->ctl_lock); 2859 2860 break; 2861 } 2862 case CTL_SETSYNC: 2863 case CTL_GETSYNC: { 2864 struct ctl_sync_info *sync_info; 2865 struct ctl_lun *lun; 2866 2867 sync_info = (struct ctl_sync_info *)addr; 2868 2869 mtx_lock(&softc->ctl_lock); 2870 lun = softc->ctl_luns[sync_info->lun_id]; 2871 if (lun == NULL) { 2872 mtx_unlock(&softc->ctl_lock); 2873 sync_info->status = CTL_GS_SYNC_NO_LUN; 2874 } 2875 /* 2876 * Get or set the sync interval. We're not bounds checking 2877 * in the set case, hopefully the user won't do something 2878 * silly. 2879 */ 2880 mtx_lock(&lun->lun_lock); 2881 mtx_unlock(&softc->ctl_lock); 2882 if (cmd == CTL_GETSYNC) 2883 sync_info->sync_interval = lun->sync_interval; 2884 else 2885 lun->sync_interval = sync_info->sync_interval; 2886 mtx_unlock(&lun->lun_lock); 2887 2888 sync_info->status = CTL_GS_SYNC_OK; 2889 2890 break; 2891 } 2892 case CTL_GETSTATS: { 2893 struct ctl_stats *stats; 2894 struct ctl_lun *lun; 2895 int i; 2896 2897 stats = (struct ctl_stats *)addr; 2898 2899 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2900 stats->alloc_len) { 2901 stats->status = CTL_SS_NEED_MORE_SPACE; 2902 stats->num_luns = softc->num_luns; 2903 break; 2904 } 2905 /* 2906 * XXX KDM no locking here. If the LUN list changes, 2907 * things can blow up. 2908 */ 2909 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2910 i++, lun = STAILQ_NEXT(lun, links)) { 2911 retval = copyout(&lun->stats, &stats->lun_stats[i], 2912 sizeof(lun->stats)); 2913 if (retval != 0) 2914 break; 2915 } 2916 stats->num_luns = softc->num_luns; 2917 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2918 softc->num_luns; 2919 stats->status = CTL_SS_OK; 2920#ifdef CTL_TIME_IO 2921 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2922#else 2923 stats->flags = CTL_STATS_FLAG_NONE; 2924#endif 2925 getnanouptime(&stats->timestamp); 2926 break; 2927 } 2928 case CTL_ERROR_INJECT: { 2929 struct ctl_error_desc *err_desc, *new_err_desc; 2930 struct ctl_lun *lun; 2931 2932 err_desc = (struct ctl_error_desc *)addr; 2933 2934 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2935 M_WAITOK | M_ZERO); 2936 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2937 2938 mtx_lock(&softc->ctl_lock); 2939 lun = softc->ctl_luns[err_desc->lun_id]; 2940 if (lun == NULL) { 2941 mtx_unlock(&softc->ctl_lock); 2942 free(new_err_desc, M_CTL); 2943 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2944 __func__, (uintmax_t)err_desc->lun_id); 2945 retval = EINVAL; 2946 break; 2947 } 2948 mtx_lock(&lun->lun_lock); 2949 mtx_unlock(&softc->ctl_lock); 2950 2951 /* 2952 * We could do some checking here to verify the validity 2953 * of the request, but given the complexity of error 2954 * injection requests, the checking logic would be fairly 2955 * complex. 2956 * 2957 * For now, if the request is invalid, it just won't get 2958 * executed and might get deleted. 2959 */ 2960 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2961 2962 /* 2963 * XXX KDM check to make sure the serial number is unique, 2964 * in case we somehow manage to wrap. That shouldn't 2965 * happen for a very long time, but it's the right thing to 2966 * do. 2967 */ 2968 new_err_desc->serial = lun->error_serial; 2969 err_desc->serial = lun->error_serial; 2970 lun->error_serial++; 2971 2972 mtx_unlock(&lun->lun_lock); 2973 break; 2974 } 2975 case CTL_ERROR_INJECT_DELETE: { 2976 struct ctl_error_desc *delete_desc, *desc, *desc2; 2977 struct ctl_lun *lun; 2978 int delete_done; 2979 2980 delete_desc = (struct ctl_error_desc *)addr; 2981 delete_done = 0; 2982 2983 mtx_lock(&softc->ctl_lock); 2984 lun = softc->ctl_luns[delete_desc->lun_id]; 2985 if (lun == NULL) { 2986 mtx_unlock(&softc->ctl_lock); 2987 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2988 __func__, (uintmax_t)delete_desc->lun_id); 2989 retval = EINVAL; 2990 break; 2991 } 2992 mtx_lock(&lun->lun_lock); 2993 mtx_unlock(&softc->ctl_lock); 2994 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2995 if (desc->serial != delete_desc->serial) 2996 continue; 2997 2998 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2999 links); 3000 free(desc, M_CTL); 3001 delete_done = 1; 3002 } 3003 mtx_unlock(&lun->lun_lock); 3004 if (delete_done == 0) { 3005 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3006 "error serial %ju on LUN %u\n", __func__, 3007 delete_desc->serial, delete_desc->lun_id); 3008 retval = EINVAL; 3009 break; 3010 } 3011 break; 3012 } 3013 case CTL_DUMP_STRUCTS: { 3014 int i, j, k, idx; 3015 struct ctl_port *port; 3016 struct ctl_frontend *fe; 3017 3018 mtx_lock(&softc->ctl_lock); 3019 printf("CTL Persistent Reservation information start:\n"); 3020 for (i = 0; i < CTL_MAX_LUNS; i++) { 3021 struct ctl_lun *lun; 3022 3023 lun = softc->ctl_luns[i]; 3024 3025 if ((lun == NULL) 3026 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3027 continue; 3028 3029 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3030 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3031 idx = j * CTL_MAX_INIT_PER_PORT + k; 3032 if (lun->pr_keys[idx] == 0) 3033 continue; 3034 printf(" LUN %d port %d iid %d key " 3035 "%#jx\n", i, j, k, 3036 (uintmax_t)lun->pr_keys[idx]); 3037 } 3038 } 3039 } 3040 printf("CTL Persistent Reservation information end\n"); 3041 printf("CTL Ports:\n"); 3042 STAILQ_FOREACH(port, &softc->port_list, links) { 3043 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3044 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3045 port->frontend->name, port->port_type, 3046 port->physical_port, port->virtual_port, 3047 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3048 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3049 if (port->wwpn_iid[j].in_use == 0 && 3050 port->wwpn_iid[j].wwpn == 0 && 3051 port->wwpn_iid[j].name == NULL) 3052 continue; 3053 3054 printf(" iid %u use %d WWPN %#jx '%s'\n", 3055 j, port->wwpn_iid[j].in_use, 3056 (uintmax_t)port->wwpn_iid[j].wwpn, 3057 port->wwpn_iid[j].name); 3058 } 3059 } 3060 printf("CTL Port information end\n"); 3061 mtx_unlock(&softc->ctl_lock); 3062 /* 3063 * XXX KDM calling this without a lock. We'd likely want 3064 * to drop the lock before calling the frontend's dump 3065 * routine anyway. 3066 */ 3067 printf("CTL Frontends:\n"); 3068 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3069 printf(" Frontend '%s'\n", fe->name); 3070 if (fe->fe_dump != NULL) 3071 fe->fe_dump(); 3072 } 3073 printf("CTL Frontend information end\n"); 3074 break; 3075 } 3076 case CTL_LUN_REQ: { 3077 struct ctl_lun_req *lun_req; 3078 struct ctl_backend_driver *backend; 3079 3080 lun_req = (struct ctl_lun_req *)addr; 3081 3082 backend = ctl_backend_find(lun_req->backend); 3083 if (backend == NULL) { 3084 lun_req->status = CTL_LUN_ERROR; 3085 snprintf(lun_req->error_str, 3086 sizeof(lun_req->error_str), 3087 "Backend \"%s\" not found.", 3088 lun_req->backend); 3089 break; 3090 } 3091 if (lun_req->num_be_args > 0) { 3092 lun_req->kern_be_args = ctl_copyin_args( 3093 lun_req->num_be_args, 3094 lun_req->be_args, 3095 lun_req->error_str, 3096 sizeof(lun_req->error_str)); 3097 if (lun_req->kern_be_args == NULL) { 3098 lun_req->status = CTL_LUN_ERROR; 3099 break; 3100 } 3101 } 3102 3103 retval = backend->ioctl(dev, cmd, addr, flag, td); 3104 3105 if (lun_req->num_be_args > 0) { 3106 ctl_copyout_args(lun_req->num_be_args, 3107 lun_req->kern_be_args); 3108 ctl_free_args(lun_req->num_be_args, 3109 lun_req->kern_be_args); 3110 } 3111 break; 3112 } 3113 case CTL_LUN_LIST: { 3114 struct sbuf *sb; 3115 struct ctl_lun *lun; 3116 struct ctl_lun_list *list; 3117 struct ctl_option *opt; 3118 3119 list = (struct ctl_lun_list *)addr; 3120 3121 /* 3122 * Allocate a fixed length sbuf here, based on the length 3123 * of the user's buffer. We could allocate an auto-extending 3124 * buffer, and then tell the user how much larger our 3125 * amount of data is than his buffer, but that presents 3126 * some problems: 3127 * 3128 * 1. The sbuf(9) routines use a blocking malloc, and so 3129 * we can't hold a lock while calling them with an 3130 * auto-extending buffer. 3131 * 3132 * 2. There is not currently a LUN reference counting 3133 * mechanism, outside of outstanding transactions on 3134 * the LUN's OOA queue. So a LUN could go away on us 3135 * while we're getting the LUN number, backend-specific 3136 * information, etc. Thus, given the way things 3137 * currently work, we need to hold the CTL lock while 3138 * grabbing LUN information. 3139 * 3140 * So, from the user's standpoint, the best thing to do is 3141 * allocate what he thinks is a reasonable buffer length, 3142 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3143 * double the buffer length and try again. (And repeat 3144 * that until he succeeds.) 3145 */ 3146 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3147 if (sb == NULL) { 3148 list->status = CTL_LUN_LIST_ERROR; 3149 snprintf(list->error_str, sizeof(list->error_str), 3150 "Unable to allocate %d bytes for LUN list", 3151 list->alloc_len); 3152 break; 3153 } 3154 3155 sbuf_printf(sb, "<ctllunlist>\n"); 3156 3157 mtx_lock(&softc->ctl_lock); 3158 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3159 mtx_lock(&lun->lun_lock); 3160 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3161 (uintmax_t)lun->lun); 3162 3163 /* 3164 * Bail out as soon as we see that we've overfilled 3165 * the buffer. 3166 */ 3167 if (retval != 0) 3168 break; 3169 3170 retval = sbuf_printf(sb, "\t<backend_type>%s" 3171 "</backend_type>\n", 3172 (lun->backend == NULL) ? "none" : 3173 lun->backend->name); 3174 3175 if (retval != 0) 3176 break; 3177 3178 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3179 lun->be_lun->lun_type); 3180 3181 if (retval != 0) 3182 break; 3183 3184 if (lun->backend == NULL) { 3185 retval = sbuf_printf(sb, "</lun>\n"); 3186 if (retval != 0) 3187 break; 3188 continue; 3189 } 3190 3191 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3192 (lun->be_lun->maxlba > 0) ? 3193 lun->be_lun->maxlba + 1 : 0); 3194 3195 if (retval != 0) 3196 break; 3197 3198 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3199 lun->be_lun->blocksize); 3200 3201 if (retval != 0) 3202 break; 3203 3204 retval = sbuf_printf(sb, "\t<serial_number>"); 3205 3206 if (retval != 0) 3207 break; 3208 3209 retval = ctl_sbuf_printf_esc(sb, 3210 lun->be_lun->serial_num); 3211 3212 if (retval != 0) 3213 break; 3214 3215 retval = sbuf_printf(sb, "</serial_number>\n"); 3216 3217 if (retval != 0) 3218 break; 3219 3220 retval = sbuf_printf(sb, "\t<device_id>"); 3221 3222 if (retval != 0) 3223 break; 3224 3225 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3226 3227 if (retval != 0) 3228 break; 3229 3230 retval = sbuf_printf(sb, "</device_id>\n"); 3231 3232 if (retval != 0) 3233 break; 3234 3235 if (lun->backend->lun_info != NULL) { 3236 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3237 if (retval != 0) 3238 break; 3239 } 3240 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3241 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3242 opt->name, opt->value, opt->name); 3243 if (retval != 0) 3244 break; 3245 } 3246 3247 retval = sbuf_printf(sb, "</lun>\n"); 3248 3249 if (retval != 0) 3250 break; 3251 mtx_unlock(&lun->lun_lock); 3252 } 3253 if (lun != NULL) 3254 mtx_unlock(&lun->lun_lock); 3255 mtx_unlock(&softc->ctl_lock); 3256 3257 if ((retval != 0) 3258 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3259 retval = 0; 3260 sbuf_delete(sb); 3261 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3262 snprintf(list->error_str, sizeof(list->error_str), 3263 "Out of space, %d bytes is too small", 3264 list->alloc_len); 3265 break; 3266 } 3267 3268 sbuf_finish(sb); 3269 3270 retval = copyout(sbuf_data(sb), list->lun_xml, 3271 sbuf_len(sb) + 1); 3272 3273 list->fill_len = sbuf_len(sb) + 1; 3274 list->status = CTL_LUN_LIST_OK; 3275 sbuf_delete(sb); 3276 break; 3277 } 3278 case CTL_ISCSI: { 3279 struct ctl_iscsi *ci; 3280 struct ctl_frontend *fe; 3281 3282 ci = (struct ctl_iscsi *)addr; 3283 3284 fe = ctl_frontend_find("iscsi"); 3285 if (fe == NULL) { 3286 ci->status = CTL_ISCSI_ERROR; 3287 snprintf(ci->error_str, sizeof(ci->error_str), 3288 "Frontend \"iscsi\" not found."); 3289 break; 3290 } 3291 3292 retval = fe->ioctl(dev, cmd, addr, flag, td); 3293 break; 3294 } 3295 case CTL_PORT_REQ: { 3296 struct ctl_req *req; 3297 struct ctl_frontend *fe; 3298 3299 req = (struct ctl_req *)addr; 3300 3301 fe = ctl_frontend_find(req->driver); 3302 if (fe == NULL) { 3303 req->status = CTL_LUN_ERROR; 3304 snprintf(req->error_str, sizeof(req->error_str), 3305 "Frontend \"%s\" not found.", req->driver); 3306 break; 3307 } 3308 if (req->num_args > 0) { 3309 req->kern_args = ctl_copyin_args(req->num_args, 3310 req->args, req->error_str, sizeof(req->error_str)); 3311 if (req->kern_args == NULL) { 3312 req->status = CTL_LUN_ERROR; 3313 break; 3314 } 3315 } 3316 3317 retval = fe->ioctl(dev, cmd, addr, flag, td); 3318 3319 if (req->num_args > 0) { 3320 ctl_copyout_args(req->num_args, req->kern_args); 3321 ctl_free_args(req->num_args, req->kern_args); 3322 } 3323 break; 3324 } 3325 case CTL_PORT_LIST: { 3326 struct sbuf *sb; 3327 struct ctl_port *port; 3328 struct ctl_lun_list *list; 3329 struct ctl_option *opt; 3330 int j; 3331 3332 list = (struct ctl_lun_list *)addr; 3333 3334 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3335 if (sb == NULL) { 3336 list->status = CTL_LUN_LIST_ERROR; 3337 snprintf(list->error_str, sizeof(list->error_str), 3338 "Unable to allocate %d bytes for LUN list", 3339 list->alloc_len); 3340 break; 3341 } 3342 3343 sbuf_printf(sb, "<ctlportlist>\n"); 3344 3345 mtx_lock(&softc->ctl_lock); 3346 STAILQ_FOREACH(port, &softc->port_list, links) { 3347 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3348 (uintmax_t)port->targ_port); 3349 3350 /* 3351 * Bail out as soon as we see that we've overfilled 3352 * the buffer. 3353 */ 3354 if (retval != 0) 3355 break; 3356 3357 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3358 "</frontend_type>\n", port->frontend->name); 3359 if (retval != 0) 3360 break; 3361 3362 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3363 port->port_type); 3364 if (retval != 0) 3365 break; 3366 3367 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3368 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3369 if (retval != 0) 3370 break; 3371 3372 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3373 port->port_name); 3374 if (retval != 0) 3375 break; 3376 3377 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3378 port->physical_port); 3379 if (retval != 0) 3380 break; 3381 3382 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3383 port->virtual_port); 3384 if (retval != 0) 3385 break; 3386 3387 if (port->target_devid != NULL) { 3388 sbuf_printf(sb, "\t<target>"); 3389 ctl_id_sbuf(port->target_devid, sb); 3390 sbuf_printf(sb, "</target>\n"); 3391 } 3392 3393 if (port->port_devid != NULL) { 3394 sbuf_printf(sb, "\t<port>"); 3395 ctl_id_sbuf(port->port_devid, sb); 3396 sbuf_printf(sb, "</port>\n"); 3397 } 3398 3399 if (port->port_info != NULL) { 3400 retval = port->port_info(port->onoff_arg, sb); 3401 if (retval != 0) 3402 break; 3403 } 3404 STAILQ_FOREACH(opt, &port->options, links) { 3405 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3406 opt->name, opt->value, opt->name); 3407 if (retval != 0) 3408 break; 3409 } 3410 3411 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3412 if (port->wwpn_iid[j].in_use == 0 || 3413 (port->wwpn_iid[j].wwpn == 0 && 3414 port->wwpn_iid[j].name == NULL)) 3415 continue; 3416 3417 if (port->wwpn_iid[j].name != NULL) 3418 retval = sbuf_printf(sb, 3419 "\t<initiator>%u %s</initiator>\n", 3420 j, port->wwpn_iid[j].name); 3421 else 3422 retval = sbuf_printf(sb, 3423 "\t<initiator>%u naa.%08jx</initiator>\n", 3424 j, port->wwpn_iid[j].wwpn); 3425 if (retval != 0) 3426 break; 3427 } 3428 if (retval != 0) 3429 break; 3430 3431 retval = sbuf_printf(sb, "</targ_port>\n"); 3432 if (retval != 0) 3433 break; 3434 } 3435 mtx_unlock(&softc->ctl_lock); 3436 3437 if ((retval != 0) 3438 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3439 retval = 0; 3440 sbuf_delete(sb); 3441 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3442 snprintf(list->error_str, sizeof(list->error_str), 3443 "Out of space, %d bytes is too small", 3444 list->alloc_len); 3445 break; 3446 } 3447 3448 sbuf_finish(sb); 3449 3450 retval = copyout(sbuf_data(sb), list->lun_xml, 3451 sbuf_len(sb) + 1); 3452 3453 list->fill_len = sbuf_len(sb) + 1; 3454 list->status = CTL_LUN_LIST_OK; 3455 sbuf_delete(sb); 3456 break; 3457 } 3458 default: { 3459 /* XXX KDM should we fix this? */ 3460#if 0 3461 struct ctl_backend_driver *backend; 3462 unsigned int type; 3463 int found; 3464 3465 found = 0; 3466 3467 /* 3468 * We encode the backend type as the ioctl type for backend 3469 * ioctls. So parse it out here, and then search for a 3470 * backend of this type. 3471 */ 3472 type = _IOC_TYPE(cmd); 3473 3474 STAILQ_FOREACH(backend, &softc->be_list, links) { 3475 if (backend->type == type) { 3476 found = 1; 3477 break; 3478 } 3479 } 3480 if (found == 0) { 3481 printf("ctl: unknown ioctl command %#lx or backend " 3482 "%d\n", cmd, type); 3483 retval = EINVAL; 3484 break; 3485 } 3486 retval = backend->ioctl(dev, cmd, addr, flag, td); 3487#endif 3488 retval = ENOTTY; 3489 break; 3490 } 3491 } 3492 return (retval); 3493} 3494 3495uint32_t 3496ctl_get_initindex(struct ctl_nexus *nexus) 3497{ 3498 if (nexus->targ_port < CTL_MAX_PORTS) 3499 return (nexus->initid.id + 3500 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3501 else 3502 return (nexus->initid.id + 3503 ((nexus->targ_port - CTL_MAX_PORTS) * 3504 CTL_MAX_INIT_PER_PORT)); 3505} 3506 3507uint32_t 3508ctl_get_resindex(struct ctl_nexus *nexus) 3509{ 3510 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3511} 3512 3513uint32_t 3514ctl_port_idx(int port_num) 3515{ 3516 if (port_num < CTL_MAX_PORTS) 3517 return(port_num); 3518 else 3519 return(port_num - CTL_MAX_PORTS); 3520} 3521 3522static uint32_t 3523ctl_map_lun(int port_num, uint32_t lun_id) 3524{ 3525 struct ctl_port *port; 3526 3527 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3528 if (port == NULL) 3529 return (UINT32_MAX); 3530 if (port->lun_map == NULL) 3531 return (lun_id); 3532 return (port->lun_map(port->targ_lun_arg, lun_id)); 3533} 3534 3535static uint32_t 3536ctl_map_lun_back(int port_num, uint32_t lun_id) 3537{ 3538 struct ctl_port *port; 3539 uint32_t i; 3540 3541 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3542 if (port->lun_map == NULL) 3543 return (lun_id); 3544 for (i = 0; i < CTL_MAX_LUNS; i++) { 3545 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3546 return (i); 3547 } 3548 return (UINT32_MAX); 3549} 3550 3551/* 3552 * Note: This only works for bitmask sizes that are at least 32 bits, and 3553 * that are a power of 2. 3554 */ 3555int 3556ctl_ffz(uint32_t *mask, uint32_t size) 3557{ 3558 uint32_t num_chunks, num_pieces; 3559 int i, j; 3560 3561 num_chunks = (size >> 5); 3562 if (num_chunks == 0) 3563 num_chunks++; 3564 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3565 3566 for (i = 0; i < num_chunks; i++) { 3567 for (j = 0; j < num_pieces; j++) { 3568 if ((mask[i] & (1 << j)) == 0) 3569 return ((i << 5) + j); 3570 } 3571 } 3572 3573 return (-1); 3574} 3575 3576int 3577ctl_set_mask(uint32_t *mask, uint32_t bit) 3578{ 3579 uint32_t chunk, piece; 3580 3581 chunk = bit >> 5; 3582 piece = bit % (sizeof(uint32_t) * 8); 3583 3584 if ((mask[chunk] & (1 << piece)) != 0) 3585 return (-1); 3586 else 3587 mask[chunk] |= (1 << piece); 3588 3589 return (0); 3590} 3591 3592int 3593ctl_clear_mask(uint32_t *mask, uint32_t bit) 3594{ 3595 uint32_t chunk, piece; 3596 3597 chunk = bit >> 5; 3598 piece = bit % (sizeof(uint32_t) * 8); 3599 3600 if ((mask[chunk] & (1 << piece)) == 0) 3601 return (-1); 3602 else 3603 mask[chunk] &= ~(1 << piece); 3604 3605 return (0); 3606} 3607 3608int 3609ctl_is_set(uint32_t *mask, uint32_t bit) 3610{ 3611 uint32_t chunk, piece; 3612 3613 chunk = bit >> 5; 3614 piece = bit % (sizeof(uint32_t) * 8); 3615 3616 if ((mask[chunk] & (1 << piece)) == 0) 3617 return (0); 3618 else 3619 return (1); 3620} 3621 3622#ifdef unused 3623/* 3624 * The bus, target and lun are optional, they can be filled in later. 3625 * can_wait is used to determine whether we can wait on the malloc or not. 3626 */ 3627union ctl_io* 3628ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3629 uint32_t targ_lun, int can_wait) 3630{ 3631 union ctl_io *io; 3632 3633 if (can_wait) 3634 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3635 else 3636 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3637 3638 if (io != NULL) { 3639 io->io_hdr.io_type = io_type; 3640 io->io_hdr.targ_port = targ_port; 3641 /* 3642 * XXX KDM this needs to change/go away. We need to move 3643 * to a preallocated pool of ctl_scsiio structures. 3644 */ 3645 io->io_hdr.nexus.targ_target.id = targ_target; 3646 io->io_hdr.nexus.targ_lun = targ_lun; 3647 } 3648 3649 return (io); 3650} 3651 3652void 3653ctl_kfree_io(union ctl_io *io) 3654{ 3655 free(io, M_CTL); 3656} 3657#endif /* unused */ 3658 3659/* 3660 * ctl_softc, pool_type, total_ctl_io are passed in. 3661 * npool is passed out. 3662 */ 3663int 3664ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3665 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3666{ 3667 uint32_t i; 3668 union ctl_io *cur_io, *next_io; 3669 struct ctl_io_pool *pool; 3670 int retval; 3671 3672 retval = 0; 3673 3674 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3675 M_NOWAIT | M_ZERO); 3676 if (pool == NULL) { 3677 retval = ENOMEM; 3678 goto bailout; 3679 } 3680 3681 pool->type = pool_type; 3682 pool->ctl_softc = ctl_softc; 3683 3684 mtx_lock(&ctl_softc->pool_lock); 3685 pool->id = ctl_softc->cur_pool_id++; 3686 mtx_unlock(&ctl_softc->pool_lock); 3687 3688 pool->flags = CTL_POOL_FLAG_NONE; 3689 pool->refcount = 1; /* Reference for validity. */ 3690 STAILQ_INIT(&pool->free_queue); 3691 3692 /* 3693 * XXX KDM other options here: 3694 * - allocate a page at a time 3695 * - allocate one big chunk of memory. 3696 * Page allocation might work well, but would take a little more 3697 * tracking. 3698 */ 3699 for (i = 0; i < total_ctl_io; i++) { 3700 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3701 M_NOWAIT); 3702 if (cur_io == NULL) { 3703 retval = ENOMEM; 3704 break; 3705 } 3706 cur_io->io_hdr.pool = pool; 3707 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3708 pool->total_ctl_io++; 3709 pool->free_ctl_io++; 3710 } 3711 3712 if (retval != 0) { 3713 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3714 cur_io != NULL; cur_io = next_io) { 3715 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3716 links); 3717 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3718 ctl_io_hdr, links); 3719 free(cur_io, M_CTLIO); 3720 } 3721 3722 free(pool, M_CTL); 3723 goto bailout; 3724 } 3725 mtx_lock(&ctl_softc->pool_lock); 3726 ctl_softc->num_pools++; 3727 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3728 /* 3729 * Increment our usage count if this is an external consumer, so we 3730 * can't get unloaded until the external consumer (most likely a 3731 * FETD) unloads and frees his pool. 3732 * 3733 * XXX KDM will this increment the caller's module use count, or 3734 * mine? 3735 */ 3736#if 0 3737 if ((pool_type != CTL_POOL_EMERGENCY) 3738 && (pool_type != CTL_POOL_INTERNAL) 3739 && (pool_type != CTL_POOL_4OTHERSC)) 3740 MOD_INC_USE_COUNT; 3741#endif 3742 3743 mtx_unlock(&ctl_softc->pool_lock); 3744 3745 *npool = pool; 3746 3747bailout: 3748 3749 return (retval); 3750} 3751 3752static int 3753ctl_pool_acquire(struct ctl_io_pool *pool) 3754{ 3755 3756 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3757 3758 if (pool->flags & CTL_POOL_FLAG_INVALID) 3759 return (EINVAL); 3760 3761 pool->refcount++; 3762 3763 return (0); 3764} 3765 3766static void 3767ctl_pool_release(struct ctl_io_pool *pool) 3768{ 3769 struct ctl_softc *ctl_softc = pool->ctl_softc; 3770 union ctl_io *io; 3771 3772 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3773 3774 if (--pool->refcount != 0) 3775 return; 3776 3777 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3778 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3779 links); 3780 free(io, M_CTLIO); 3781 } 3782 3783 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3784 ctl_softc->num_pools--; 3785 3786 /* 3787 * XXX KDM will this decrement the caller's usage count or mine? 3788 */ 3789#if 0 3790 if ((pool->type != CTL_POOL_EMERGENCY) 3791 && (pool->type != CTL_POOL_INTERNAL) 3792 && (pool->type != CTL_POOL_4OTHERSC)) 3793 MOD_DEC_USE_COUNT; 3794#endif 3795 3796 free(pool, M_CTL); 3797} 3798 3799void 3800ctl_pool_free(struct ctl_io_pool *pool) 3801{ 3802 struct ctl_softc *ctl_softc; 3803 3804 if (pool == NULL) 3805 return; 3806 3807 ctl_softc = pool->ctl_softc; 3808 mtx_lock(&ctl_softc->pool_lock); 3809 pool->flags |= CTL_POOL_FLAG_INVALID; 3810 ctl_pool_release(pool); 3811 mtx_unlock(&ctl_softc->pool_lock); 3812} 3813 3814/* 3815 * This routine does not block (except for spinlocks of course). 3816 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3817 * possible. 3818 */ 3819union ctl_io * 3820ctl_alloc_io(void *pool_ref) 3821{ 3822 union ctl_io *io; 3823 struct ctl_softc *ctl_softc; 3824 struct ctl_io_pool *pool, *npool; 3825 struct ctl_io_pool *emergency_pool; 3826 3827 pool = (struct ctl_io_pool *)pool_ref; 3828 3829 if (pool == NULL) { 3830 printf("%s: pool is NULL\n", __func__); 3831 return (NULL); 3832 } 3833 3834 emergency_pool = NULL; 3835 3836 ctl_softc = pool->ctl_softc; 3837 3838 mtx_lock(&ctl_softc->pool_lock); 3839 /* 3840 * First, try to get the io structure from the user's pool. 3841 */ 3842 if (ctl_pool_acquire(pool) == 0) { 3843 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3844 if (io != NULL) { 3845 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3846 pool->total_allocated++; 3847 pool->free_ctl_io--; 3848 mtx_unlock(&ctl_softc->pool_lock); 3849 return (io); 3850 } else 3851 ctl_pool_release(pool); 3852 } 3853 /* 3854 * If he doesn't have any io structures left, search for an 3855 * emergency pool and grab one from there. 3856 */ 3857 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3858 if (npool->type != CTL_POOL_EMERGENCY) 3859 continue; 3860 3861 if (ctl_pool_acquire(npool) != 0) 3862 continue; 3863 3864 emergency_pool = npool; 3865 3866 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3867 if (io != NULL) { 3868 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3869 npool->total_allocated++; 3870 npool->free_ctl_io--; 3871 mtx_unlock(&ctl_softc->pool_lock); 3872 return (io); 3873 } else 3874 ctl_pool_release(npool); 3875 } 3876 3877 /* Drop the spinlock before we malloc */ 3878 mtx_unlock(&ctl_softc->pool_lock); 3879 3880 /* 3881 * The emergency pool (if it exists) didn't have one, so try an 3882 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3883 */ 3884 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3885 if (io != NULL) { 3886 /* 3887 * If the emergency pool exists but is empty, add this 3888 * ctl_io to its list when it gets freed. 3889 */ 3890 if (emergency_pool != NULL) { 3891 mtx_lock(&ctl_softc->pool_lock); 3892 if (ctl_pool_acquire(emergency_pool) == 0) { 3893 io->io_hdr.pool = emergency_pool; 3894 emergency_pool->total_ctl_io++; 3895 /* 3896 * Need to bump this, otherwise 3897 * total_allocated and total_freed won't 3898 * match when we no longer have anything 3899 * outstanding. 3900 */ 3901 emergency_pool->total_allocated++; 3902 } 3903 mtx_unlock(&ctl_softc->pool_lock); 3904 } else 3905 io->io_hdr.pool = NULL; 3906 } 3907 3908 return (io); 3909} 3910 3911void 3912ctl_free_io(union ctl_io *io) 3913{ 3914 if (io == NULL) 3915 return; 3916 3917 /* 3918 * If this ctl_io has a pool, return it to that pool. 3919 */ 3920 if (io->io_hdr.pool != NULL) { 3921 struct ctl_io_pool *pool; 3922 3923 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3924 mtx_lock(&pool->ctl_softc->pool_lock); 3925 io->io_hdr.io_type = 0xff; 3926 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3927 pool->total_freed++; 3928 pool->free_ctl_io++; 3929 ctl_pool_release(pool); 3930 mtx_unlock(&pool->ctl_softc->pool_lock); 3931 } else { 3932 /* 3933 * Otherwise, just free it. We probably malloced it and 3934 * the emergency pool wasn't available. 3935 */ 3936 free(io, M_CTLIO); 3937 } 3938 3939} 3940 3941void 3942ctl_zero_io(union ctl_io *io) 3943{ 3944 void *pool_ref; 3945 3946 if (io == NULL) 3947 return; 3948 3949 /* 3950 * May need to preserve linked list pointers at some point too. 3951 */ 3952 pool_ref = io->io_hdr.pool; 3953 3954 memset(io, 0, sizeof(*io)); 3955 3956 io->io_hdr.pool = pool_ref; 3957} 3958 3959/* 3960 * This routine is currently used for internal copies of ctl_ios that need 3961 * to persist for some reason after we've already returned status to the 3962 * FETD. (Thus the flag set.) 3963 * 3964 * XXX XXX 3965 * Note that this makes a blind copy of all fields in the ctl_io, except 3966 * for the pool reference. This includes any memory that has been 3967 * allocated! That memory will no longer be valid after done has been 3968 * called, so this would be VERY DANGEROUS for command that actually does 3969 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3970 * start and stop commands, which don't transfer any data, so this is not a 3971 * problem. If it is used for anything else, the caller would also need to 3972 * allocate data buffer space and this routine would need to be modified to 3973 * copy the data buffer(s) as well. 3974 */ 3975void 3976ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3977{ 3978 void *pool_ref; 3979 3980 if ((src == NULL) 3981 || (dest == NULL)) 3982 return; 3983 3984 /* 3985 * May need to preserve linked list pointers at some point too. 3986 */ 3987 pool_ref = dest->io_hdr.pool; 3988 3989 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3990 3991 dest->io_hdr.pool = pool_ref; 3992 /* 3993 * We need to know that this is an internal copy, and doesn't need 3994 * to get passed back to the FETD that allocated it. 3995 */ 3996 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3997} 3998 3999#ifdef NEEDTOPORT 4000static void 4001ctl_update_power_subpage(struct copan_power_subpage *page) 4002{ 4003 int num_luns, num_partitions, config_type; 4004 struct ctl_softc *softc; 4005 cs_BOOL_t aor_present, shelf_50pct_power; 4006 cs_raidset_personality_t rs_type; 4007 int max_active_luns; 4008 4009 softc = control_softc; 4010 4011 /* subtract out the processor LUN */ 4012 num_luns = softc->num_luns - 1; 4013 /* 4014 * Default to 7 LUNs active, which was the only number we allowed 4015 * in the past. 4016 */ 4017 max_active_luns = 7; 4018 4019 num_partitions = config_GetRsPartitionInfo(); 4020 config_type = config_GetConfigType(); 4021 shelf_50pct_power = config_GetShelfPowerMode(); 4022 aor_present = config_IsAorRsPresent(); 4023 4024 rs_type = ddb_GetRsRaidType(1); 4025 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 4026 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 4027 EPRINT(0, "Unsupported RS type %d!", rs_type); 4028 } 4029 4030 4031 page->total_luns = num_luns; 4032 4033 switch (config_type) { 4034 case 40: 4035 /* 4036 * In a 40 drive configuration, it doesn't matter what DC 4037 * cards we have, whether we have AOR enabled or not, 4038 * partitioning or not, or what type of RAIDset we have. 4039 * In that scenario, we can power up every LUN we present 4040 * to the user. 4041 */ 4042 max_active_luns = num_luns; 4043 4044 break; 4045 case 64: 4046 if (shelf_50pct_power == CS_FALSE) { 4047 /* 25% power */ 4048 if (aor_present == CS_TRUE) { 4049 if (rs_type == 4050 CS_RAIDSET_PERSONALITY_RAID5) { 4051 max_active_luns = 7; 4052 } else if (rs_type == 4053 CS_RAIDSET_PERSONALITY_RAID1){ 4054 max_active_luns = 14; 4055 } else { 4056 /* XXX KDM now what?? */ 4057 } 4058 } else { 4059 if (rs_type == 4060 CS_RAIDSET_PERSONALITY_RAID5) { 4061 max_active_luns = 8; 4062 } else if (rs_type == 4063 CS_RAIDSET_PERSONALITY_RAID1){ 4064 max_active_luns = 16; 4065 } else { 4066 /* XXX KDM now what?? */ 4067 } 4068 } 4069 } else { 4070 /* 50% power */ 4071 /* 4072 * With 50% power in a 64 drive configuration, we 4073 * can power all LUNs we present. 4074 */ 4075 max_active_luns = num_luns; 4076 } 4077 break; 4078 case 112: 4079 if (shelf_50pct_power == CS_FALSE) { 4080 /* 25% power */ 4081 if (aor_present == CS_TRUE) { 4082 if (rs_type == 4083 CS_RAIDSET_PERSONALITY_RAID5) { 4084 max_active_luns = 7; 4085 } else if (rs_type == 4086 CS_RAIDSET_PERSONALITY_RAID1){ 4087 max_active_luns = 14; 4088 } else { 4089 /* XXX KDM now what?? */ 4090 } 4091 } else { 4092 if (rs_type == 4093 CS_RAIDSET_PERSONALITY_RAID5) { 4094 max_active_luns = 8; 4095 } else if (rs_type == 4096 CS_RAIDSET_PERSONALITY_RAID1){ 4097 max_active_luns = 16; 4098 } else { 4099 /* XXX KDM now what?? */ 4100 } 4101 } 4102 } else { 4103 /* 50% power */ 4104 if (aor_present == CS_TRUE) { 4105 if (rs_type == 4106 CS_RAIDSET_PERSONALITY_RAID5) { 4107 max_active_luns = 14; 4108 } else if (rs_type == 4109 CS_RAIDSET_PERSONALITY_RAID1){ 4110 /* 4111 * We're assuming here that disk 4112 * caching is enabled, and so we're 4113 * able to power up half of each 4114 * LUN, and cache all writes. 4115 */ 4116 max_active_luns = num_luns; 4117 } else { 4118 /* XXX KDM now what?? */ 4119 } 4120 } else { 4121 if (rs_type == 4122 CS_RAIDSET_PERSONALITY_RAID5) { 4123 max_active_luns = 15; 4124 } else if (rs_type == 4125 CS_RAIDSET_PERSONALITY_RAID1){ 4126 max_active_luns = 30; 4127 } else { 4128 /* XXX KDM now what?? */ 4129 } 4130 } 4131 } 4132 break; 4133 default: 4134 /* 4135 * In this case, we have an unknown configuration, so we 4136 * just use the default from above. 4137 */ 4138 break; 4139 } 4140 4141 page->max_active_luns = max_active_luns; 4142#if 0 4143 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4144 page->total_luns, page->max_active_luns); 4145#endif 4146} 4147#endif /* NEEDTOPORT */ 4148 4149/* 4150 * This routine could be used in the future to load default and/or saved 4151 * mode page parameters for a particuar lun. 4152 */ 4153static int 4154ctl_init_page_index(struct ctl_lun *lun) 4155{ 4156 int i; 4157 struct ctl_page_index *page_index; 4158 struct ctl_softc *softc; 4159 const char *value; 4160 4161 memcpy(&lun->mode_pages.index, page_index_template, 4162 sizeof(page_index_template)); 4163 4164 softc = lun->ctl_softc; 4165 4166 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4167 4168 page_index = &lun->mode_pages.index[i]; 4169 /* 4170 * If this is a disk-only mode page, there's no point in 4171 * setting it up. For some pages, we have to have some 4172 * basic information about the disk in order to calculate the 4173 * mode page data. 4174 */ 4175 if ((lun->be_lun->lun_type != T_DIRECT) 4176 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4177 continue; 4178 4179 switch (page_index->page_code & SMPH_PC_MASK) { 4180 case SMS_FORMAT_DEVICE_PAGE: { 4181 struct scsi_format_page *format_page; 4182 4183 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4184 panic("subpage is incorrect!"); 4185 4186 /* 4187 * Sectors per track are set above. Bytes per 4188 * sector need to be set here on a per-LUN basis. 4189 */ 4190 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4191 &format_page_default, 4192 sizeof(format_page_default)); 4193 memcpy(&lun->mode_pages.format_page[ 4194 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4195 sizeof(format_page_changeable)); 4196 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4197 &format_page_default, 4198 sizeof(format_page_default)); 4199 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4200 &format_page_default, 4201 sizeof(format_page_default)); 4202 4203 format_page = &lun->mode_pages.format_page[ 4204 CTL_PAGE_CURRENT]; 4205 scsi_ulto2b(lun->be_lun->blocksize, 4206 format_page->bytes_per_sector); 4207 4208 format_page = &lun->mode_pages.format_page[ 4209 CTL_PAGE_DEFAULT]; 4210 scsi_ulto2b(lun->be_lun->blocksize, 4211 format_page->bytes_per_sector); 4212 4213 format_page = &lun->mode_pages.format_page[ 4214 CTL_PAGE_SAVED]; 4215 scsi_ulto2b(lun->be_lun->blocksize, 4216 format_page->bytes_per_sector); 4217 4218 page_index->page_data = 4219 (uint8_t *)lun->mode_pages.format_page; 4220 break; 4221 } 4222 case SMS_RIGID_DISK_PAGE: { 4223 struct scsi_rigid_disk_page *rigid_disk_page; 4224 uint32_t sectors_per_cylinder; 4225 uint64_t cylinders; 4226#ifndef __XSCALE__ 4227 int shift; 4228#endif /* !__XSCALE__ */ 4229 4230 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4231 panic("invalid subpage value %d", 4232 page_index->subpage); 4233 4234 /* 4235 * Rotation rate and sectors per track are set 4236 * above. We calculate the cylinders here based on 4237 * capacity. Due to the number of heads and 4238 * sectors per track we're using, smaller arrays 4239 * may turn out to have 0 cylinders. Linux and 4240 * FreeBSD don't pay attention to these mode pages 4241 * to figure out capacity, but Solaris does. It 4242 * seems to deal with 0 cylinders just fine, and 4243 * works out a fake geometry based on the capacity. 4244 */ 4245 memcpy(&lun->mode_pages.rigid_disk_page[ 4246 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4247 sizeof(rigid_disk_page_default)); 4248 memcpy(&lun->mode_pages.rigid_disk_page[ 4249 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4250 sizeof(rigid_disk_page_changeable)); 4251 memcpy(&lun->mode_pages.rigid_disk_page[ 4252 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4253 sizeof(rigid_disk_page_default)); 4254 memcpy(&lun->mode_pages.rigid_disk_page[ 4255 CTL_PAGE_SAVED], &rigid_disk_page_default, 4256 sizeof(rigid_disk_page_default)); 4257 4258 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4259 CTL_DEFAULT_HEADS; 4260 4261 /* 4262 * The divide method here will be more accurate, 4263 * probably, but results in floating point being 4264 * used in the kernel on i386 (__udivdi3()). On the 4265 * XScale, though, __udivdi3() is implemented in 4266 * software. 4267 * 4268 * The shift method for cylinder calculation is 4269 * accurate if sectors_per_cylinder is a power of 4270 * 2. Otherwise it might be slightly off -- you 4271 * might have a bit of a truncation problem. 4272 */ 4273#ifdef __XSCALE__ 4274 cylinders = (lun->be_lun->maxlba + 1) / 4275 sectors_per_cylinder; 4276#else 4277 for (shift = 31; shift > 0; shift--) { 4278 if (sectors_per_cylinder & (1 << shift)) 4279 break; 4280 } 4281 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4282#endif 4283 4284 /* 4285 * We've basically got 3 bytes, or 24 bits for the 4286 * cylinder size in the mode page. If we're over, 4287 * just round down to 2^24. 4288 */ 4289 if (cylinders > 0xffffff) 4290 cylinders = 0xffffff; 4291 4292 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4293 CTL_PAGE_CURRENT]; 4294 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4295 4296 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4297 CTL_PAGE_DEFAULT]; 4298 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4299 4300 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4301 CTL_PAGE_SAVED]; 4302 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4303 4304 page_index->page_data = 4305 (uint8_t *)lun->mode_pages.rigid_disk_page; 4306 break; 4307 } 4308 case SMS_CACHING_PAGE: { 4309 struct scsi_caching_page *caching_page; 4310 4311 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4312 panic("invalid subpage value %d", 4313 page_index->subpage); 4314 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4315 &caching_page_default, 4316 sizeof(caching_page_default)); 4317 memcpy(&lun->mode_pages.caching_page[ 4318 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4319 sizeof(caching_page_changeable)); 4320 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4321 &caching_page_default, 4322 sizeof(caching_page_default)); 4323 caching_page = &lun->mode_pages.caching_page[ 4324 CTL_PAGE_SAVED]; 4325 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4326 if (value != NULL && strcmp(value, "off") == 0) 4327 caching_page->flags1 &= ~SCP_WCE; 4328 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4329 if (value != NULL && strcmp(value, "off") == 0) 4330 caching_page->flags1 |= SCP_RCD; 4331 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4332 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4333 sizeof(caching_page_default)); 4334 page_index->page_data = 4335 (uint8_t *)lun->mode_pages.caching_page; 4336 break; 4337 } 4338 case SMS_CONTROL_MODE_PAGE: { 4339 struct scsi_control_page *control_page; 4340 4341 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4342 panic("invalid subpage value %d", 4343 page_index->subpage); 4344 4345 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4346 &control_page_default, 4347 sizeof(control_page_default)); 4348 memcpy(&lun->mode_pages.control_page[ 4349 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4350 sizeof(control_page_changeable)); 4351 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4352 &control_page_default, 4353 sizeof(control_page_default)); 4354 control_page = &lun->mode_pages.control_page[ 4355 CTL_PAGE_SAVED]; 4356 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4357 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4358 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4359 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4360 } 4361 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4362 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4363 sizeof(control_page_default)); 4364 page_index->page_data = 4365 (uint8_t *)lun->mode_pages.control_page; 4366 break; 4367 4368 } 4369 case SMS_VENDOR_SPECIFIC_PAGE:{ 4370 switch (page_index->subpage) { 4371 case PWR_SUBPAGE_CODE: { 4372 struct copan_power_subpage *current_page, 4373 *saved_page; 4374 4375 memcpy(&lun->mode_pages.power_subpage[ 4376 CTL_PAGE_CURRENT], 4377 &power_page_default, 4378 sizeof(power_page_default)); 4379 memcpy(&lun->mode_pages.power_subpage[ 4380 CTL_PAGE_CHANGEABLE], 4381 &power_page_changeable, 4382 sizeof(power_page_changeable)); 4383 memcpy(&lun->mode_pages.power_subpage[ 4384 CTL_PAGE_DEFAULT], 4385 &power_page_default, 4386 sizeof(power_page_default)); 4387 memcpy(&lun->mode_pages.power_subpage[ 4388 CTL_PAGE_SAVED], 4389 &power_page_default, 4390 sizeof(power_page_default)); 4391 page_index->page_data = 4392 (uint8_t *)lun->mode_pages.power_subpage; 4393 4394 current_page = (struct copan_power_subpage *) 4395 (page_index->page_data + 4396 (page_index->page_len * 4397 CTL_PAGE_CURRENT)); 4398 saved_page = (struct copan_power_subpage *) 4399 (page_index->page_data + 4400 (page_index->page_len * 4401 CTL_PAGE_SAVED)); 4402 break; 4403 } 4404 case APS_SUBPAGE_CODE: { 4405 struct copan_aps_subpage *current_page, 4406 *saved_page; 4407 4408 // This gets set multiple times but 4409 // it should always be the same. It's 4410 // only done during init so who cares. 4411 index_to_aps_page = i; 4412 4413 memcpy(&lun->mode_pages.aps_subpage[ 4414 CTL_PAGE_CURRENT], 4415 &aps_page_default, 4416 sizeof(aps_page_default)); 4417 memcpy(&lun->mode_pages.aps_subpage[ 4418 CTL_PAGE_CHANGEABLE], 4419 &aps_page_changeable, 4420 sizeof(aps_page_changeable)); 4421 memcpy(&lun->mode_pages.aps_subpage[ 4422 CTL_PAGE_DEFAULT], 4423 &aps_page_default, 4424 sizeof(aps_page_default)); 4425 memcpy(&lun->mode_pages.aps_subpage[ 4426 CTL_PAGE_SAVED], 4427 &aps_page_default, 4428 sizeof(aps_page_default)); 4429 page_index->page_data = 4430 (uint8_t *)lun->mode_pages.aps_subpage; 4431 4432 current_page = (struct copan_aps_subpage *) 4433 (page_index->page_data + 4434 (page_index->page_len * 4435 CTL_PAGE_CURRENT)); 4436 saved_page = (struct copan_aps_subpage *) 4437 (page_index->page_data + 4438 (page_index->page_len * 4439 CTL_PAGE_SAVED)); 4440 break; 4441 } 4442 case DBGCNF_SUBPAGE_CODE: { 4443 struct copan_debugconf_subpage *current_page, 4444 *saved_page; 4445 4446 memcpy(&lun->mode_pages.debugconf_subpage[ 4447 CTL_PAGE_CURRENT], 4448 &debugconf_page_default, 4449 sizeof(debugconf_page_default)); 4450 memcpy(&lun->mode_pages.debugconf_subpage[ 4451 CTL_PAGE_CHANGEABLE], 4452 &debugconf_page_changeable, 4453 sizeof(debugconf_page_changeable)); 4454 memcpy(&lun->mode_pages.debugconf_subpage[ 4455 CTL_PAGE_DEFAULT], 4456 &debugconf_page_default, 4457 sizeof(debugconf_page_default)); 4458 memcpy(&lun->mode_pages.debugconf_subpage[ 4459 CTL_PAGE_SAVED], 4460 &debugconf_page_default, 4461 sizeof(debugconf_page_default)); 4462 page_index->page_data = 4463 (uint8_t *)lun->mode_pages.debugconf_subpage; 4464 4465 current_page = (struct copan_debugconf_subpage *) 4466 (page_index->page_data + 4467 (page_index->page_len * 4468 CTL_PAGE_CURRENT)); 4469 saved_page = (struct copan_debugconf_subpage *) 4470 (page_index->page_data + 4471 (page_index->page_len * 4472 CTL_PAGE_SAVED)); 4473 break; 4474 } 4475 default: 4476 panic("invalid subpage value %d", 4477 page_index->subpage); 4478 break; 4479 } 4480 break; 4481 } 4482 default: 4483 panic("invalid page value %d", 4484 page_index->page_code & SMPH_PC_MASK); 4485 break; 4486 } 4487 } 4488 4489 return (CTL_RETVAL_COMPLETE); 4490} 4491 4492/* 4493 * LUN allocation. 4494 * 4495 * Requirements: 4496 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4497 * wants us to allocate the LUN and he can block. 4498 * - ctl_softc is always set 4499 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4500 * 4501 * Returns 0 for success, non-zero (errno) for failure. 4502 */ 4503static int 4504ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4505 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4506{ 4507 struct ctl_lun *nlun, *lun; 4508 struct ctl_port *port; 4509 struct scsi_vpd_id_descriptor *desc; 4510 struct scsi_vpd_id_t10 *t10id; 4511 const char *eui, *naa, *scsiname, *vendor, *value; 4512 int lun_number, i, lun_malloced; 4513 int devidlen, idlen1, idlen2 = 0, len; 4514 4515 if (be_lun == NULL) 4516 return (EINVAL); 4517 4518 /* 4519 * We currently only support Direct Access or Processor LUN types. 4520 */ 4521 switch (be_lun->lun_type) { 4522 case T_DIRECT: 4523 break; 4524 case T_PROCESSOR: 4525 break; 4526 case T_SEQUENTIAL: 4527 case T_CHANGER: 4528 default: 4529 be_lun->lun_config_status(be_lun->be_lun, 4530 CTL_LUN_CONFIG_FAILURE); 4531 break; 4532 } 4533 if (ctl_lun == NULL) { 4534 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4535 lun_malloced = 1; 4536 } else { 4537 lun_malloced = 0; 4538 lun = ctl_lun; 4539 } 4540 4541 memset(lun, 0, sizeof(*lun)); 4542 if (lun_malloced) 4543 lun->flags = CTL_LUN_MALLOCED; 4544 4545 /* Generate LUN ID. */ 4546 devidlen = max(CTL_DEVID_MIN_LEN, 4547 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4548 idlen1 = sizeof(*t10id) + devidlen; 4549 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4550 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4551 if (scsiname != NULL) { 4552 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4553 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4554 } 4555 eui = ctl_get_opt(&be_lun->options, "eui"); 4556 if (eui != NULL) { 4557 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4558 } 4559 naa = ctl_get_opt(&be_lun->options, "naa"); 4560 if (naa != NULL) { 4561 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4562 } 4563 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4564 M_CTL, M_WAITOK | M_ZERO); 4565 lun->lun_devid->len = len; 4566 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4567 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4568 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4569 desc->length = idlen1; 4570 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4571 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4572 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4573 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4574 } else { 4575 strncpy(t10id->vendor, vendor, 4576 min(sizeof(t10id->vendor), strlen(vendor))); 4577 } 4578 strncpy((char *)t10id->vendor_spec_id, 4579 (char *)be_lun->device_id, devidlen); 4580 if (scsiname != NULL) { 4581 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4582 desc->length); 4583 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4584 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4585 SVPD_ID_TYPE_SCSI_NAME; 4586 desc->length = idlen2; 4587 strlcpy(desc->identifier, scsiname, idlen2); 4588 } 4589 if (eui != NULL) { 4590 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4591 desc->length); 4592 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4593 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4594 SVPD_ID_TYPE_EUI64; 4595 desc->length = 8; 4596 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4597 } 4598 if (naa != NULL) { 4599 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4600 desc->length); 4601 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4602 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4603 SVPD_ID_TYPE_NAA; 4604 desc->length = 8; 4605 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4606 } 4607 4608 mtx_lock(&ctl_softc->ctl_lock); 4609 /* 4610 * See if the caller requested a particular LUN number. If so, see 4611 * if it is available. Otherwise, allocate the first available LUN. 4612 */ 4613 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4614 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4615 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4616 mtx_unlock(&ctl_softc->ctl_lock); 4617 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4618 printf("ctl: requested LUN ID %d is higher " 4619 "than CTL_MAX_LUNS - 1 (%d)\n", 4620 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4621 } else { 4622 /* 4623 * XXX KDM return an error, or just assign 4624 * another LUN ID in this case?? 4625 */ 4626 printf("ctl: requested LUN ID %d is already " 4627 "in use\n", be_lun->req_lun_id); 4628 } 4629 if (lun->flags & CTL_LUN_MALLOCED) 4630 free(lun, M_CTL); 4631 be_lun->lun_config_status(be_lun->be_lun, 4632 CTL_LUN_CONFIG_FAILURE); 4633 return (ENOSPC); 4634 } 4635 lun_number = be_lun->req_lun_id; 4636 } else { 4637 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4638 if (lun_number == -1) { 4639 mtx_unlock(&ctl_softc->ctl_lock); 4640 printf("ctl: can't allocate LUN on target %ju, out of " 4641 "LUNs\n", (uintmax_t)target_id.id); 4642 if (lun->flags & CTL_LUN_MALLOCED) 4643 free(lun, M_CTL); 4644 be_lun->lun_config_status(be_lun->be_lun, 4645 CTL_LUN_CONFIG_FAILURE); 4646 return (ENOSPC); 4647 } 4648 } 4649 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4650 4651 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4652 lun->target = target_id; 4653 lun->lun = lun_number; 4654 lun->be_lun = be_lun; 4655 /* 4656 * The processor LUN is always enabled. Disk LUNs come on line 4657 * disabled, and must be enabled by the backend. 4658 */ 4659 lun->flags |= CTL_LUN_DISABLED; 4660 lun->backend = be_lun->be; 4661 be_lun->ctl_lun = lun; 4662 be_lun->lun_id = lun_number; 4663 atomic_add_int(&be_lun->be->num_luns, 1); 4664 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4665 lun->flags |= CTL_LUN_OFFLINE; 4666 4667 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4668 lun->flags |= CTL_LUN_STOPPED; 4669 4670 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4671 lun->flags |= CTL_LUN_INOPERABLE; 4672 4673 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4674 lun->flags |= CTL_LUN_PRIMARY_SC; 4675 4676 value = ctl_get_opt(&be_lun->options, "readonly"); 4677 if (value != NULL && strcmp(value, "on") == 0) 4678 lun->flags |= CTL_LUN_READONLY; 4679 4680 lun->ctl_softc = ctl_softc; 4681 TAILQ_INIT(&lun->ooa_queue); 4682 TAILQ_INIT(&lun->blocked_queue); 4683 STAILQ_INIT(&lun->error_list); 4684 ctl_tpc_lun_init(lun); 4685 4686 /* 4687 * Initialize the mode page index. 4688 */ 4689 ctl_init_page_index(lun); 4690 4691 /* 4692 * Set the poweron UA for all initiators on this LUN only. 4693 */ 4694 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4695 lun->pending_ua[i] = CTL_UA_POWERON; 4696 4697 /* 4698 * Now, before we insert this lun on the lun list, set the lun 4699 * inventory changed UA for all other luns. 4700 */ 4701 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4702 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4703 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4704 } 4705 } 4706 4707 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4708 4709 ctl_softc->ctl_luns[lun_number] = lun; 4710 4711 ctl_softc->num_luns++; 4712 4713 /* Setup statistics gathering */ 4714 lun->stats.device_type = be_lun->lun_type; 4715 lun->stats.lun_number = lun_number; 4716 if (lun->stats.device_type == T_DIRECT) 4717 lun->stats.blocksize = be_lun->blocksize; 4718 else 4719 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4720 for (i = 0;i < CTL_MAX_PORTS;i++) 4721 lun->stats.ports[i].targ_port = i; 4722 4723 mtx_unlock(&ctl_softc->ctl_lock); 4724 4725 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4726 4727 /* 4728 * Run through each registered FETD and bring it online if it isn't 4729 * already. Enable the target ID if it hasn't been enabled, and 4730 * enable this particular LUN. 4731 */ 4732 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4733 int retval; 4734 4735 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4736 if (retval != 0) { 4737 printf("ctl_alloc_lun: FETD %s port %d returned error " 4738 "%d for lun_enable on target %ju lun %d\n", 4739 port->port_name, port->targ_port, retval, 4740 (uintmax_t)target_id.id, lun_number); 4741 } else 4742 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4743 } 4744 return (0); 4745} 4746 4747/* 4748 * Delete a LUN. 4749 * Assumptions: 4750 * - LUN has already been marked invalid and any pending I/O has been taken 4751 * care of. 4752 */ 4753static int 4754ctl_free_lun(struct ctl_lun *lun) 4755{ 4756 struct ctl_softc *softc; 4757#if 0 4758 struct ctl_port *port; 4759#endif 4760 struct ctl_lun *nlun; 4761 int i; 4762 4763 softc = lun->ctl_softc; 4764 4765 mtx_assert(&softc->ctl_lock, MA_OWNED); 4766 4767 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4768 4769 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4770 4771 softc->ctl_luns[lun->lun] = NULL; 4772 4773 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4774 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4775 4776 softc->num_luns--; 4777 4778 /* 4779 * XXX KDM this scheme only works for a single target/multiple LUN 4780 * setup. It needs to be revamped for a multiple target scheme. 4781 * 4782 * XXX KDM this results in port->lun_disable() getting called twice, 4783 * once when ctl_disable_lun() is called, and a second time here. 4784 * We really need to re-think the LUN disable semantics. There 4785 * should probably be several steps/levels to LUN removal: 4786 * - disable 4787 * - invalidate 4788 * - free 4789 * 4790 * Right now we only have a disable method when communicating to 4791 * the front end ports, at least for individual LUNs. 4792 */ 4793#if 0 4794 STAILQ_FOREACH(port, &softc->port_list, links) { 4795 int retval; 4796 4797 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4798 lun->lun); 4799 if (retval != 0) { 4800 printf("ctl_free_lun: FETD %s port %d returned error " 4801 "%d for lun_disable on target %ju lun %jd\n", 4802 port->port_name, port->targ_port, retval, 4803 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4804 } 4805 4806 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4807 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4808 4809 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4810 if (retval != 0) { 4811 printf("ctl_free_lun: FETD %s port %d " 4812 "returned error %d for targ_disable on " 4813 "target %ju\n", port->port_name, 4814 port->targ_port, retval, 4815 (uintmax_t)lun->target.id); 4816 } else 4817 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4818 4819 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4820 continue; 4821 4822#if 0 4823 port->port_offline(port->onoff_arg); 4824 port->status &= ~CTL_PORT_STATUS_ONLINE; 4825#endif 4826 } 4827 } 4828#endif 4829 4830 /* 4831 * Tell the backend to free resources, if this LUN has a backend. 4832 */ 4833 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4834 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4835 4836 ctl_tpc_lun_shutdown(lun); 4837 mtx_destroy(&lun->lun_lock); 4838 free(lun->lun_devid, M_CTL); 4839 if (lun->flags & CTL_LUN_MALLOCED) 4840 free(lun, M_CTL); 4841 4842 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4843 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4844 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4845 } 4846 } 4847 4848 return (0); 4849} 4850 4851static void 4852ctl_create_lun(struct ctl_be_lun *be_lun) 4853{ 4854 struct ctl_softc *ctl_softc; 4855 4856 ctl_softc = control_softc; 4857 4858 /* 4859 * ctl_alloc_lun() should handle all potential failure cases. 4860 */ 4861 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4862} 4863 4864int 4865ctl_add_lun(struct ctl_be_lun *be_lun) 4866{ 4867 struct ctl_softc *ctl_softc = control_softc; 4868 4869 mtx_lock(&ctl_softc->ctl_lock); 4870 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4871 mtx_unlock(&ctl_softc->ctl_lock); 4872 wakeup(&ctl_softc->pending_lun_queue); 4873 4874 return (0); 4875} 4876 4877int 4878ctl_enable_lun(struct ctl_be_lun *be_lun) 4879{ 4880 struct ctl_softc *ctl_softc; 4881 struct ctl_port *port, *nport; 4882 struct ctl_lun *lun; 4883 int retval; 4884 4885 ctl_softc = control_softc; 4886 4887 lun = (struct ctl_lun *)be_lun->ctl_lun; 4888 4889 mtx_lock(&ctl_softc->ctl_lock); 4890 mtx_lock(&lun->lun_lock); 4891 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4892 /* 4893 * eh? Why did we get called if the LUN is already 4894 * enabled? 4895 */ 4896 mtx_unlock(&lun->lun_lock); 4897 mtx_unlock(&ctl_softc->ctl_lock); 4898 return (0); 4899 } 4900 lun->flags &= ~CTL_LUN_DISABLED; 4901 mtx_unlock(&lun->lun_lock); 4902 4903 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4904 nport = STAILQ_NEXT(port, links); 4905 4906 /* 4907 * Drop the lock while we call the FETD's enable routine. 4908 * This can lead to a callback into CTL (at least in the 4909 * case of the internal initiator frontend. 4910 */ 4911 mtx_unlock(&ctl_softc->ctl_lock); 4912 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4913 mtx_lock(&ctl_softc->ctl_lock); 4914 if (retval != 0) { 4915 printf("%s: FETD %s port %d returned error " 4916 "%d for lun_enable on target %ju lun %jd\n", 4917 __func__, port->port_name, port->targ_port, retval, 4918 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4919 } 4920#if 0 4921 else { 4922 /* NOTE: TODO: why does lun enable affect port status? */ 4923 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4924 } 4925#endif 4926 } 4927 4928 mtx_unlock(&ctl_softc->ctl_lock); 4929 4930 return (0); 4931} 4932 4933int 4934ctl_disable_lun(struct ctl_be_lun *be_lun) 4935{ 4936 struct ctl_softc *ctl_softc; 4937 struct ctl_port *port; 4938 struct ctl_lun *lun; 4939 int retval; 4940 4941 ctl_softc = control_softc; 4942 4943 lun = (struct ctl_lun *)be_lun->ctl_lun; 4944 4945 mtx_lock(&ctl_softc->ctl_lock); 4946 mtx_lock(&lun->lun_lock); 4947 if (lun->flags & CTL_LUN_DISABLED) { 4948 mtx_unlock(&lun->lun_lock); 4949 mtx_unlock(&ctl_softc->ctl_lock); 4950 return (0); 4951 } 4952 lun->flags |= CTL_LUN_DISABLED; 4953 mtx_unlock(&lun->lun_lock); 4954 4955 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4956 mtx_unlock(&ctl_softc->ctl_lock); 4957 /* 4958 * Drop the lock before we call the frontend's disable 4959 * routine, to avoid lock order reversals. 4960 * 4961 * XXX KDM what happens if the frontend list changes while 4962 * we're traversing it? It's unlikely, but should be handled. 4963 */ 4964 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4965 lun->lun); 4966 mtx_lock(&ctl_softc->ctl_lock); 4967 if (retval != 0) { 4968 printf("ctl_alloc_lun: FETD %s port %d returned error " 4969 "%d for lun_disable on target %ju lun %jd\n", 4970 port->port_name, port->targ_port, retval, 4971 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4972 } 4973 } 4974 4975 mtx_unlock(&ctl_softc->ctl_lock); 4976 4977 return (0); 4978} 4979 4980int 4981ctl_start_lun(struct ctl_be_lun *be_lun) 4982{ 4983 struct ctl_softc *ctl_softc; 4984 struct ctl_lun *lun; 4985 4986 ctl_softc = control_softc; 4987 4988 lun = (struct ctl_lun *)be_lun->ctl_lun; 4989 4990 mtx_lock(&lun->lun_lock); 4991 lun->flags &= ~CTL_LUN_STOPPED; 4992 mtx_unlock(&lun->lun_lock); 4993 4994 return (0); 4995} 4996 4997int 4998ctl_stop_lun(struct ctl_be_lun *be_lun) 4999{ 5000 struct ctl_softc *ctl_softc; 5001 struct ctl_lun *lun; 5002 5003 ctl_softc = control_softc; 5004 5005 lun = (struct ctl_lun *)be_lun->ctl_lun; 5006 5007 mtx_lock(&lun->lun_lock); 5008 lun->flags |= CTL_LUN_STOPPED; 5009 mtx_unlock(&lun->lun_lock); 5010 5011 return (0); 5012} 5013 5014int 5015ctl_lun_offline(struct ctl_be_lun *be_lun) 5016{ 5017 struct ctl_softc *ctl_softc; 5018 struct ctl_lun *lun; 5019 5020 ctl_softc = control_softc; 5021 5022 lun = (struct ctl_lun *)be_lun->ctl_lun; 5023 5024 mtx_lock(&lun->lun_lock); 5025 lun->flags |= CTL_LUN_OFFLINE; 5026 mtx_unlock(&lun->lun_lock); 5027 5028 return (0); 5029} 5030 5031int 5032ctl_lun_online(struct ctl_be_lun *be_lun) 5033{ 5034 struct ctl_softc *ctl_softc; 5035 struct ctl_lun *lun; 5036 5037 ctl_softc = control_softc; 5038 5039 lun = (struct ctl_lun *)be_lun->ctl_lun; 5040 5041 mtx_lock(&lun->lun_lock); 5042 lun->flags &= ~CTL_LUN_OFFLINE; 5043 mtx_unlock(&lun->lun_lock); 5044 5045 return (0); 5046} 5047 5048int 5049ctl_invalidate_lun(struct ctl_be_lun *be_lun) 5050{ 5051 struct ctl_softc *ctl_softc; 5052 struct ctl_lun *lun; 5053 5054 ctl_softc = control_softc; 5055 5056 lun = (struct ctl_lun *)be_lun->ctl_lun; 5057 5058 mtx_lock(&lun->lun_lock); 5059 5060 /* 5061 * The LUN needs to be disabled before it can be marked invalid. 5062 */ 5063 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5064 mtx_unlock(&lun->lun_lock); 5065 return (-1); 5066 } 5067 /* 5068 * Mark the LUN invalid. 5069 */ 5070 lun->flags |= CTL_LUN_INVALID; 5071 5072 /* 5073 * If there is nothing in the OOA queue, go ahead and free the LUN. 5074 * If we have something in the OOA queue, we'll free it when the 5075 * last I/O completes. 5076 */ 5077 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5078 mtx_unlock(&lun->lun_lock); 5079 mtx_lock(&ctl_softc->ctl_lock); 5080 ctl_free_lun(lun); 5081 mtx_unlock(&ctl_softc->ctl_lock); 5082 } else 5083 mtx_unlock(&lun->lun_lock); 5084 5085 return (0); 5086} 5087 5088int 5089ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5090{ 5091 struct ctl_softc *ctl_softc; 5092 struct ctl_lun *lun; 5093 5094 ctl_softc = control_softc; 5095 lun = (struct ctl_lun *)be_lun->ctl_lun; 5096 5097 mtx_lock(&lun->lun_lock); 5098 lun->flags |= CTL_LUN_INOPERABLE; 5099 mtx_unlock(&lun->lun_lock); 5100 5101 return (0); 5102} 5103 5104int 5105ctl_lun_operable(struct ctl_be_lun *be_lun) 5106{ 5107 struct ctl_softc *ctl_softc; 5108 struct ctl_lun *lun; 5109 5110 ctl_softc = control_softc; 5111 lun = (struct ctl_lun *)be_lun->ctl_lun; 5112 5113 mtx_lock(&lun->lun_lock); 5114 lun->flags &= ~CTL_LUN_INOPERABLE; 5115 mtx_unlock(&lun->lun_lock); 5116 5117 return (0); 5118} 5119 5120int 5121ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5122 int lock) 5123{ 5124 struct ctl_softc *softc; 5125 struct ctl_lun *lun; 5126 struct copan_aps_subpage *current_sp; 5127 struct ctl_page_index *page_index; 5128 int i; 5129 5130 softc = control_softc; 5131 5132 mtx_lock(&softc->ctl_lock); 5133 5134 lun = (struct ctl_lun *)be_lun->ctl_lun; 5135 mtx_lock(&lun->lun_lock); 5136 5137 page_index = NULL; 5138 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5139 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5140 APS_PAGE_CODE) 5141 continue; 5142 5143 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5144 continue; 5145 page_index = &lun->mode_pages.index[i]; 5146 } 5147 5148 if (page_index == NULL) { 5149 mtx_unlock(&lun->lun_lock); 5150 mtx_unlock(&softc->ctl_lock); 5151 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5152 (uintmax_t)lun->lun); 5153 return (1); 5154 } 5155#if 0 5156 if ((softc->aps_locked_lun != 0) 5157 && (softc->aps_locked_lun != lun->lun)) { 5158 printf("%s: attempt to lock LUN %llu when %llu is already " 5159 "locked\n"); 5160 mtx_unlock(&lun->lun_lock); 5161 mtx_unlock(&softc->ctl_lock); 5162 return (1); 5163 } 5164#endif 5165 5166 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5167 (page_index->page_len * CTL_PAGE_CURRENT)); 5168 5169 if (lock != 0) { 5170 current_sp->lock_active = APS_LOCK_ACTIVE; 5171 softc->aps_locked_lun = lun->lun; 5172 } else { 5173 current_sp->lock_active = 0; 5174 softc->aps_locked_lun = 0; 5175 } 5176 5177 5178 /* 5179 * If we're in HA mode, try to send the lock message to the other 5180 * side. 5181 */ 5182 if (ctl_is_single == 0) { 5183 int isc_retval; 5184 union ctl_ha_msg lock_msg; 5185 5186 lock_msg.hdr.nexus = *nexus; 5187 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5188 if (lock != 0) 5189 lock_msg.aps.lock_flag = 1; 5190 else 5191 lock_msg.aps.lock_flag = 0; 5192 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5193 sizeof(lock_msg), 0); 5194 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5195 printf("%s: APS (lock=%d) error returned from " 5196 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5197 mtx_unlock(&lun->lun_lock); 5198 mtx_unlock(&softc->ctl_lock); 5199 return (1); 5200 } 5201 } 5202 5203 mtx_unlock(&lun->lun_lock); 5204 mtx_unlock(&softc->ctl_lock); 5205 5206 return (0); 5207} 5208 5209void 5210ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5211{ 5212 struct ctl_lun *lun; 5213 struct ctl_softc *softc; 5214 int i; 5215 5216 softc = control_softc; 5217 5218 lun = (struct ctl_lun *)be_lun->ctl_lun; 5219 5220 mtx_lock(&lun->lun_lock); 5221 5222 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5223 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5224 5225 mtx_unlock(&lun->lun_lock); 5226} 5227 5228/* 5229 * Backend "memory move is complete" callback for requests that never 5230 * make it down to say RAIDCore's configuration code. 5231 */ 5232int 5233ctl_config_move_done(union ctl_io *io) 5234{ 5235 int retval; 5236 5237 retval = CTL_RETVAL_COMPLETE; 5238 5239 5240 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5241 /* 5242 * XXX KDM this shouldn't happen, but what if it does? 5243 */ 5244 if (io->io_hdr.io_type != CTL_IO_SCSI) 5245 panic("I/O type isn't CTL_IO_SCSI!"); 5246 5247 if ((io->io_hdr.port_status == 0) 5248 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5249 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5250 io->io_hdr.status = CTL_SUCCESS; 5251 else if ((io->io_hdr.port_status != 0) 5252 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5253 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5254 /* 5255 * For hardware error sense keys, the sense key 5256 * specific value is defined to be a retry count, 5257 * but we use it to pass back an internal FETD 5258 * error code. XXX KDM Hopefully the FETD is only 5259 * using 16 bits for an error code, since that's 5260 * all the space we have in the sks field. 5261 */ 5262 ctl_set_internal_failure(&io->scsiio, 5263 /*sks_valid*/ 1, 5264 /*retry_count*/ 5265 io->io_hdr.port_status); 5266 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5267 free(io->scsiio.kern_data_ptr, M_CTL); 5268 ctl_done(io); 5269 goto bailout; 5270 } 5271 5272 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5273 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5274 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5275 /* 5276 * XXX KDM just assuming a single pointer here, and not a 5277 * S/G list. If we start using S/G lists for config data, 5278 * we'll need to know how to clean them up here as well. 5279 */ 5280 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5281 free(io->scsiio.kern_data_ptr, M_CTL); 5282 /* Hopefully the user has already set the status... */ 5283 ctl_done(io); 5284 } else { 5285 /* 5286 * XXX KDM now we need to continue data movement. Some 5287 * options: 5288 * - call ctl_scsiio() again? We don't do this for data 5289 * writes, because for those at least we know ahead of 5290 * time where the write will go and how long it is. For 5291 * config writes, though, that information is largely 5292 * contained within the write itself, thus we need to 5293 * parse out the data again. 5294 * 5295 * - Call some other function once the data is in? 5296 */ 5297 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5298 ctl_data_print(io); 5299 5300 /* 5301 * XXX KDM call ctl_scsiio() again for now, and check flag 5302 * bits to see whether we're allocated or not. 5303 */ 5304 retval = ctl_scsiio(&io->scsiio); 5305 } 5306bailout: 5307 return (retval); 5308} 5309 5310/* 5311 * This gets called by a backend driver when it is done with a 5312 * data_submit method. 5313 */ 5314void 5315ctl_data_submit_done(union ctl_io *io) 5316{ 5317 /* 5318 * If the IO_CONT flag is set, we need to call the supplied 5319 * function to continue processing the I/O, instead of completing 5320 * the I/O just yet. 5321 * 5322 * If there is an error, though, we don't want to keep processing. 5323 * Instead, just send status back to the initiator. 5324 */ 5325 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5326 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5327 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5328 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5329 io->scsiio.io_cont(io); 5330 return; 5331 } 5332 ctl_done(io); 5333} 5334 5335/* 5336 * This gets called by a backend driver when it is done with a 5337 * configuration write. 5338 */ 5339void 5340ctl_config_write_done(union ctl_io *io) 5341{ 5342 uint8_t *buf; 5343 5344 /* 5345 * If the IO_CONT flag is set, we need to call the supplied 5346 * function to continue processing the I/O, instead of completing 5347 * the I/O just yet. 5348 * 5349 * If there is an error, though, we don't want to keep processing. 5350 * Instead, just send status back to the initiator. 5351 */ 5352 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5353 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5354 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5355 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5356 io->scsiio.io_cont(io); 5357 return; 5358 } 5359 /* 5360 * Since a configuration write can be done for commands that actually 5361 * have data allocated, like write buffer, and commands that have 5362 * no data, like start/stop unit, we need to check here. 5363 */ 5364 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5365 buf = io->scsiio.kern_data_ptr; 5366 else 5367 buf = NULL; 5368 ctl_done(io); 5369 if (buf) 5370 free(buf, M_CTL); 5371} 5372 5373/* 5374 * SCSI release command. 5375 */ 5376int 5377ctl_scsi_release(struct ctl_scsiio *ctsio) 5378{ 5379 int length, longid, thirdparty_id, resv_id; 5380 struct ctl_softc *ctl_softc; 5381 struct ctl_lun *lun; 5382 uint32_t residx; 5383 5384 length = 0; 5385 resv_id = 0; 5386 5387 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5388 5389 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5390 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5391 ctl_softc = control_softc; 5392 5393 switch (ctsio->cdb[0]) { 5394 case RELEASE_10: { 5395 struct scsi_release_10 *cdb; 5396 5397 cdb = (struct scsi_release_10 *)ctsio->cdb; 5398 5399 if (cdb->byte2 & SR10_LONGID) 5400 longid = 1; 5401 else 5402 thirdparty_id = cdb->thirdparty_id; 5403 5404 resv_id = cdb->resv_id; 5405 length = scsi_2btoul(cdb->length); 5406 break; 5407 } 5408 } 5409 5410 5411 /* 5412 * XXX KDM right now, we only support LUN reservation. We don't 5413 * support 3rd party reservations, or extent reservations, which 5414 * might actually need the parameter list. If we've gotten this 5415 * far, we've got a LUN reservation. Anything else got kicked out 5416 * above. So, according to SPC, ignore the length. 5417 */ 5418 length = 0; 5419 5420 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5421 && (length > 0)) { 5422 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5423 ctsio->kern_data_len = length; 5424 ctsio->kern_total_len = length; 5425 ctsio->kern_data_resid = 0; 5426 ctsio->kern_rel_offset = 0; 5427 ctsio->kern_sg_entries = 0; 5428 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5429 ctsio->be_move_done = ctl_config_move_done; 5430 ctl_datamove((union ctl_io *)ctsio); 5431 5432 return (CTL_RETVAL_COMPLETE); 5433 } 5434 5435 if (length > 0) 5436 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5437 5438 mtx_lock(&lun->lun_lock); 5439 5440 /* 5441 * According to SPC, it is not an error for an intiator to attempt 5442 * to release a reservation on a LUN that isn't reserved, or that 5443 * is reserved by another initiator. The reservation can only be 5444 * released, though, by the initiator who made it or by one of 5445 * several reset type events. 5446 */ 5447 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5448 lun->flags &= ~CTL_LUN_RESERVED; 5449 5450 mtx_unlock(&lun->lun_lock); 5451 5452 ctsio->scsi_status = SCSI_STATUS_OK; 5453 ctsio->io_hdr.status = CTL_SUCCESS; 5454 5455 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5456 free(ctsio->kern_data_ptr, M_CTL); 5457 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5458 } 5459 5460 ctl_done((union ctl_io *)ctsio); 5461 return (CTL_RETVAL_COMPLETE); 5462} 5463 5464int 5465ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5466{ 5467 int extent, thirdparty, longid; 5468 int resv_id, length; 5469 uint64_t thirdparty_id; 5470 struct ctl_softc *ctl_softc; 5471 struct ctl_lun *lun; 5472 uint32_t residx; 5473 5474 extent = 0; 5475 thirdparty = 0; 5476 longid = 0; 5477 resv_id = 0; 5478 length = 0; 5479 thirdparty_id = 0; 5480 5481 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5482 5483 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5484 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5485 ctl_softc = control_softc; 5486 5487 switch (ctsio->cdb[0]) { 5488 case RESERVE_10: { 5489 struct scsi_reserve_10 *cdb; 5490 5491 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5492 5493 if (cdb->byte2 & SR10_LONGID) 5494 longid = 1; 5495 else 5496 thirdparty_id = cdb->thirdparty_id; 5497 5498 resv_id = cdb->resv_id; 5499 length = scsi_2btoul(cdb->length); 5500 break; 5501 } 5502 } 5503 5504 /* 5505 * XXX KDM right now, we only support LUN reservation. We don't 5506 * support 3rd party reservations, or extent reservations, which 5507 * might actually need the parameter list. If we've gotten this 5508 * far, we've got a LUN reservation. Anything else got kicked out 5509 * above. So, according to SPC, ignore the length. 5510 */ 5511 length = 0; 5512 5513 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5514 && (length > 0)) { 5515 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5516 ctsio->kern_data_len = length; 5517 ctsio->kern_total_len = length; 5518 ctsio->kern_data_resid = 0; 5519 ctsio->kern_rel_offset = 0; 5520 ctsio->kern_sg_entries = 0; 5521 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5522 ctsio->be_move_done = ctl_config_move_done; 5523 ctl_datamove((union ctl_io *)ctsio); 5524 5525 return (CTL_RETVAL_COMPLETE); 5526 } 5527 5528 if (length > 0) 5529 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5530 5531 mtx_lock(&lun->lun_lock); 5532 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5533 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5534 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5535 goto bailout; 5536 } 5537 5538 lun->flags |= CTL_LUN_RESERVED; 5539 lun->res_idx = residx; 5540 5541 ctsio->scsi_status = SCSI_STATUS_OK; 5542 ctsio->io_hdr.status = CTL_SUCCESS; 5543 5544bailout: 5545 mtx_unlock(&lun->lun_lock); 5546 5547 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5548 free(ctsio->kern_data_ptr, M_CTL); 5549 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5550 } 5551 5552 ctl_done((union ctl_io *)ctsio); 5553 return (CTL_RETVAL_COMPLETE); 5554} 5555 5556int 5557ctl_start_stop(struct ctl_scsiio *ctsio) 5558{ 5559 struct scsi_start_stop_unit *cdb; 5560 struct ctl_lun *lun; 5561 struct ctl_softc *ctl_softc; 5562 int retval; 5563 5564 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5565 5566 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5567 ctl_softc = control_softc; 5568 retval = 0; 5569 5570 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5571 5572 /* 5573 * XXX KDM 5574 * We don't support the immediate bit on a stop unit. In order to 5575 * do that, we would need to code up a way to know that a stop is 5576 * pending, and hold off any new commands until it completes, one 5577 * way or another. Then we could accept or reject those commands 5578 * depending on its status. We would almost need to do the reverse 5579 * of what we do below for an immediate start -- return the copy of 5580 * the ctl_io to the FETD with status to send to the host (and to 5581 * free the copy!) and then free the original I/O once the stop 5582 * actually completes. That way, the OOA queue mechanism can work 5583 * to block commands that shouldn't proceed. Another alternative 5584 * would be to put the copy in the queue in place of the original, 5585 * and return the original back to the caller. That could be 5586 * slightly safer.. 5587 */ 5588 if ((cdb->byte2 & SSS_IMMED) 5589 && ((cdb->how & SSS_START) == 0)) { 5590 ctl_set_invalid_field(ctsio, 5591 /*sks_valid*/ 1, 5592 /*command*/ 1, 5593 /*field*/ 1, 5594 /*bit_valid*/ 1, 5595 /*bit*/ 0); 5596 ctl_done((union ctl_io *)ctsio); 5597 return (CTL_RETVAL_COMPLETE); 5598 } 5599 5600 if ((lun->flags & CTL_LUN_PR_RESERVED) 5601 && ((cdb->how & SSS_START)==0)) { 5602 uint32_t residx; 5603 5604 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5605 if (lun->pr_keys[residx] == 0 5606 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5607 5608 ctl_set_reservation_conflict(ctsio); 5609 ctl_done((union ctl_io *)ctsio); 5610 return (CTL_RETVAL_COMPLETE); 5611 } 5612 } 5613 5614 /* 5615 * If there is no backend on this device, we can't start or stop 5616 * it. In theory we shouldn't get any start/stop commands in the 5617 * first place at this level if the LUN doesn't have a backend. 5618 * That should get stopped by the command decode code. 5619 */ 5620 if (lun->backend == NULL) { 5621 ctl_set_invalid_opcode(ctsio); 5622 ctl_done((union ctl_io *)ctsio); 5623 return (CTL_RETVAL_COMPLETE); 5624 } 5625 5626 /* 5627 * XXX KDM Copan-specific offline behavior. 5628 * Figure out a reasonable way to port this? 5629 */ 5630#ifdef NEEDTOPORT 5631 mtx_lock(&lun->lun_lock); 5632 5633 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5634 && (lun->flags & CTL_LUN_OFFLINE)) { 5635 /* 5636 * If the LUN is offline, and the on/offline bit isn't set, 5637 * reject the start or stop. Otherwise, let it through. 5638 */ 5639 mtx_unlock(&lun->lun_lock); 5640 ctl_set_lun_not_ready(ctsio); 5641 ctl_done((union ctl_io *)ctsio); 5642 } else { 5643 mtx_unlock(&lun->lun_lock); 5644#endif /* NEEDTOPORT */ 5645 /* 5646 * This could be a start or a stop when we're online, 5647 * or a stop/offline or start/online. A start or stop when 5648 * we're offline is covered in the case above. 5649 */ 5650 /* 5651 * In the non-immediate case, we send the request to 5652 * the backend and return status to the user when 5653 * it is done. 5654 * 5655 * In the immediate case, we allocate a new ctl_io 5656 * to hold a copy of the request, and send that to 5657 * the backend. We then set good status on the 5658 * user's request and return it immediately. 5659 */ 5660 if (cdb->byte2 & SSS_IMMED) { 5661 union ctl_io *new_io; 5662 5663 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5664 if (new_io == NULL) { 5665 ctl_set_busy(ctsio); 5666 ctl_done((union ctl_io *)ctsio); 5667 } else { 5668 ctl_copy_io((union ctl_io *)ctsio, 5669 new_io); 5670 retval = lun->backend->config_write(new_io); 5671 ctl_set_success(ctsio); 5672 ctl_done((union ctl_io *)ctsio); 5673 } 5674 } else { 5675 retval = lun->backend->config_write( 5676 (union ctl_io *)ctsio); 5677 } 5678#ifdef NEEDTOPORT 5679 } 5680#endif 5681 return (retval); 5682} 5683 5684/* 5685 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5686 * we don't really do anything with the LBA and length fields if the user 5687 * passes them in. Instead we'll just flush out the cache for the entire 5688 * LUN. 5689 */ 5690int 5691ctl_sync_cache(struct ctl_scsiio *ctsio) 5692{ 5693 struct ctl_lun *lun; 5694 struct ctl_softc *ctl_softc; 5695 uint64_t starting_lba; 5696 uint32_t block_count; 5697 int retval; 5698 5699 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5700 5701 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5702 ctl_softc = control_softc; 5703 retval = 0; 5704 5705 switch (ctsio->cdb[0]) { 5706 case SYNCHRONIZE_CACHE: { 5707 struct scsi_sync_cache *cdb; 5708 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5709 5710 starting_lba = scsi_4btoul(cdb->begin_lba); 5711 block_count = scsi_2btoul(cdb->lb_count); 5712 break; 5713 } 5714 case SYNCHRONIZE_CACHE_16: { 5715 struct scsi_sync_cache_16 *cdb; 5716 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5717 5718 starting_lba = scsi_8btou64(cdb->begin_lba); 5719 block_count = scsi_4btoul(cdb->lb_count); 5720 break; 5721 } 5722 default: 5723 ctl_set_invalid_opcode(ctsio); 5724 ctl_done((union ctl_io *)ctsio); 5725 goto bailout; 5726 break; /* NOTREACHED */ 5727 } 5728 5729 /* 5730 * We check the LBA and length, but don't do anything with them. 5731 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5732 * get flushed. This check will just help satisfy anyone who wants 5733 * to see an error for an out of range LBA. 5734 */ 5735 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5736 ctl_set_lba_out_of_range(ctsio); 5737 ctl_done((union ctl_io *)ctsio); 5738 goto bailout; 5739 } 5740 5741 /* 5742 * If this LUN has no backend, we can't flush the cache anyway. 5743 */ 5744 if (lun->backend == NULL) { 5745 ctl_set_invalid_opcode(ctsio); 5746 ctl_done((union ctl_io *)ctsio); 5747 goto bailout; 5748 } 5749 5750 /* 5751 * Check to see whether we're configured to send the SYNCHRONIZE 5752 * CACHE command directly to the back end. 5753 */ 5754 mtx_lock(&lun->lun_lock); 5755 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5756 && (++(lun->sync_count) >= lun->sync_interval)) { 5757 lun->sync_count = 0; 5758 mtx_unlock(&lun->lun_lock); 5759 retval = lun->backend->config_write((union ctl_io *)ctsio); 5760 } else { 5761 mtx_unlock(&lun->lun_lock); 5762 ctl_set_success(ctsio); 5763 ctl_done((union ctl_io *)ctsio); 5764 } 5765 5766bailout: 5767 5768 return (retval); 5769} 5770 5771int 5772ctl_format(struct ctl_scsiio *ctsio) 5773{ 5774 struct scsi_format *cdb; 5775 struct ctl_lun *lun; 5776 struct ctl_softc *ctl_softc; 5777 int length, defect_list_len; 5778 5779 CTL_DEBUG_PRINT(("ctl_format\n")); 5780 5781 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5782 ctl_softc = control_softc; 5783 5784 cdb = (struct scsi_format *)ctsio->cdb; 5785 5786 length = 0; 5787 if (cdb->byte2 & SF_FMTDATA) { 5788 if (cdb->byte2 & SF_LONGLIST) 5789 length = sizeof(struct scsi_format_header_long); 5790 else 5791 length = sizeof(struct scsi_format_header_short); 5792 } 5793 5794 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5795 && (length > 0)) { 5796 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5797 ctsio->kern_data_len = length; 5798 ctsio->kern_total_len = length; 5799 ctsio->kern_data_resid = 0; 5800 ctsio->kern_rel_offset = 0; 5801 ctsio->kern_sg_entries = 0; 5802 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5803 ctsio->be_move_done = ctl_config_move_done; 5804 ctl_datamove((union ctl_io *)ctsio); 5805 5806 return (CTL_RETVAL_COMPLETE); 5807 } 5808 5809 defect_list_len = 0; 5810 5811 if (cdb->byte2 & SF_FMTDATA) { 5812 if (cdb->byte2 & SF_LONGLIST) { 5813 struct scsi_format_header_long *header; 5814 5815 header = (struct scsi_format_header_long *) 5816 ctsio->kern_data_ptr; 5817 5818 defect_list_len = scsi_4btoul(header->defect_list_len); 5819 if (defect_list_len != 0) { 5820 ctl_set_invalid_field(ctsio, 5821 /*sks_valid*/ 1, 5822 /*command*/ 0, 5823 /*field*/ 2, 5824 /*bit_valid*/ 0, 5825 /*bit*/ 0); 5826 goto bailout; 5827 } 5828 } else { 5829 struct scsi_format_header_short *header; 5830 5831 header = (struct scsi_format_header_short *) 5832 ctsio->kern_data_ptr; 5833 5834 defect_list_len = scsi_2btoul(header->defect_list_len); 5835 if (defect_list_len != 0) { 5836 ctl_set_invalid_field(ctsio, 5837 /*sks_valid*/ 1, 5838 /*command*/ 0, 5839 /*field*/ 2, 5840 /*bit_valid*/ 0, 5841 /*bit*/ 0); 5842 goto bailout; 5843 } 5844 } 5845 } 5846 5847 /* 5848 * The format command will clear out the "Medium format corrupted" 5849 * status if set by the configuration code. That status is really 5850 * just a way to notify the host that we have lost the media, and 5851 * get them to issue a command that will basically make them think 5852 * they're blowing away the media. 5853 */ 5854 mtx_lock(&lun->lun_lock); 5855 lun->flags &= ~CTL_LUN_INOPERABLE; 5856 mtx_unlock(&lun->lun_lock); 5857 5858 ctsio->scsi_status = SCSI_STATUS_OK; 5859 ctsio->io_hdr.status = CTL_SUCCESS; 5860bailout: 5861 5862 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5863 free(ctsio->kern_data_ptr, M_CTL); 5864 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5865 } 5866 5867 ctl_done((union ctl_io *)ctsio); 5868 return (CTL_RETVAL_COMPLETE); 5869} 5870 5871int 5872ctl_read_buffer(struct ctl_scsiio *ctsio) 5873{ 5874 struct scsi_read_buffer *cdb; 5875 struct ctl_lun *lun; 5876 int buffer_offset, len; 5877 static uint8_t descr[4]; 5878 static uint8_t echo_descr[4] = { 0 }; 5879 5880 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5881 5882 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5883 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5884 5885 if (lun->flags & CTL_LUN_PR_RESERVED) { 5886 uint32_t residx; 5887 5888 /* 5889 * XXX KDM need a lock here. 5890 */ 5891 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5892 if ((lun->res_type == SPR_TYPE_EX_AC 5893 && residx != lun->pr_res_idx) 5894 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5895 || lun->res_type == SPR_TYPE_EX_AC_AR) 5896 && lun->pr_keys[residx] == 0)) { 5897 ctl_set_reservation_conflict(ctsio); 5898 ctl_done((union ctl_io *)ctsio); 5899 return (CTL_RETVAL_COMPLETE); 5900 } 5901 } 5902 5903 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5904 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5905 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5906 ctl_set_invalid_field(ctsio, 5907 /*sks_valid*/ 1, 5908 /*command*/ 1, 5909 /*field*/ 1, 5910 /*bit_valid*/ 1, 5911 /*bit*/ 4); 5912 ctl_done((union ctl_io *)ctsio); 5913 return (CTL_RETVAL_COMPLETE); 5914 } 5915 5916 len = scsi_3btoul(cdb->length); 5917 buffer_offset = scsi_3btoul(cdb->offset); 5918 5919 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5920 ctl_set_invalid_field(ctsio, 5921 /*sks_valid*/ 1, 5922 /*command*/ 1, 5923 /*field*/ 6, 5924 /*bit_valid*/ 0, 5925 /*bit*/ 0); 5926 ctl_done((union ctl_io *)ctsio); 5927 return (CTL_RETVAL_COMPLETE); 5928 } 5929 5930 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5931 descr[0] = 0; 5932 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5933 ctsio->kern_data_ptr = descr; 5934 len = min(len, sizeof(descr)); 5935 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5936 ctsio->kern_data_ptr = echo_descr; 5937 len = min(len, sizeof(echo_descr)); 5938 } else 5939 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5940 ctsio->kern_data_len = len; 5941 ctsio->kern_total_len = len; 5942 ctsio->kern_data_resid = 0; 5943 ctsio->kern_rel_offset = 0; 5944 ctsio->kern_sg_entries = 0; 5945 ctsio->be_move_done = ctl_config_move_done; 5946 ctl_datamove((union ctl_io *)ctsio); 5947 5948 return (CTL_RETVAL_COMPLETE); 5949} 5950 5951int 5952ctl_write_buffer(struct ctl_scsiio *ctsio) 5953{ 5954 struct scsi_write_buffer *cdb; 5955 struct ctl_lun *lun; 5956 int buffer_offset, len; 5957 5958 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5959 5960 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5961 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5962 5963 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5964 ctl_set_invalid_field(ctsio, 5965 /*sks_valid*/ 1, 5966 /*command*/ 1, 5967 /*field*/ 1, 5968 /*bit_valid*/ 1, 5969 /*bit*/ 4); 5970 ctl_done((union ctl_io *)ctsio); 5971 return (CTL_RETVAL_COMPLETE); 5972 } 5973 5974 len = scsi_3btoul(cdb->length); 5975 buffer_offset = scsi_3btoul(cdb->offset); 5976 5977 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5978 ctl_set_invalid_field(ctsio, 5979 /*sks_valid*/ 1, 5980 /*command*/ 1, 5981 /*field*/ 6, 5982 /*bit_valid*/ 0, 5983 /*bit*/ 0); 5984 ctl_done((union ctl_io *)ctsio); 5985 return (CTL_RETVAL_COMPLETE); 5986 } 5987 5988 /* 5989 * If we've got a kernel request that hasn't been malloced yet, 5990 * malloc it and tell the caller the data buffer is here. 5991 */ 5992 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5993 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5994 ctsio->kern_data_len = len; 5995 ctsio->kern_total_len = len; 5996 ctsio->kern_data_resid = 0; 5997 ctsio->kern_rel_offset = 0; 5998 ctsio->kern_sg_entries = 0; 5999 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6000 ctsio->be_move_done = ctl_config_move_done; 6001 ctl_datamove((union ctl_io *)ctsio); 6002 6003 return (CTL_RETVAL_COMPLETE); 6004 } 6005 6006 ctl_done((union ctl_io *)ctsio); 6007 6008 return (CTL_RETVAL_COMPLETE); 6009} 6010 6011int 6012ctl_write_same(struct ctl_scsiio *ctsio) 6013{ 6014 struct ctl_lun *lun; 6015 struct ctl_lba_len_flags *lbalen; 6016 uint64_t lba; 6017 uint32_t num_blocks; 6018 int len, retval; 6019 uint8_t byte2; 6020 6021 retval = CTL_RETVAL_COMPLETE; 6022 6023 CTL_DEBUG_PRINT(("ctl_write_same\n")); 6024 6025 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6026 6027 switch (ctsio->cdb[0]) { 6028 case WRITE_SAME_10: { 6029 struct scsi_write_same_10 *cdb; 6030 6031 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 6032 6033 lba = scsi_4btoul(cdb->addr); 6034 num_blocks = scsi_2btoul(cdb->length); 6035 byte2 = cdb->byte2; 6036 break; 6037 } 6038 case WRITE_SAME_16: { 6039 struct scsi_write_same_16 *cdb; 6040 6041 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 6042 6043 lba = scsi_8btou64(cdb->addr); 6044 num_blocks = scsi_4btoul(cdb->length); 6045 byte2 = cdb->byte2; 6046 break; 6047 } 6048 default: 6049 /* 6050 * We got a command we don't support. This shouldn't 6051 * happen, commands should be filtered out above us. 6052 */ 6053 ctl_set_invalid_opcode(ctsio); 6054 ctl_done((union ctl_io *)ctsio); 6055 6056 return (CTL_RETVAL_COMPLETE); 6057 break; /* NOTREACHED */ 6058 } 6059 6060 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 6061 if ((byte2 & SWS_UNMAP) == 0 && 6062 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 6063 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 6064 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 6065 ctl_done((union ctl_io *)ctsio); 6066 return (CTL_RETVAL_COMPLETE); 6067 } 6068 6069 /* 6070 * The first check is to make sure we're in bounds, the second 6071 * check is to catch wrap-around problems. If the lba + num blocks 6072 * is less than the lba, then we've wrapped around and the block 6073 * range is invalid anyway. 6074 */ 6075 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6076 || ((lba + num_blocks) < lba)) { 6077 ctl_set_lba_out_of_range(ctsio); 6078 ctl_done((union ctl_io *)ctsio); 6079 return (CTL_RETVAL_COMPLETE); 6080 } 6081 6082 /* Zero number of blocks means "to the last logical block" */ 6083 if (num_blocks == 0) { 6084 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6085 ctl_set_invalid_field(ctsio, 6086 /*sks_valid*/ 0, 6087 /*command*/ 1, 6088 /*field*/ 0, 6089 /*bit_valid*/ 0, 6090 /*bit*/ 0); 6091 ctl_done((union ctl_io *)ctsio); 6092 return (CTL_RETVAL_COMPLETE); 6093 } 6094 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6095 } 6096 6097 len = lun->be_lun->blocksize; 6098 6099 /* 6100 * If we've got a kernel request that hasn't been malloced yet, 6101 * malloc it and tell the caller the data buffer is here. 6102 */ 6103 if ((byte2 & SWS_NDOB) == 0 && 6104 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6105 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6106 ctsio->kern_data_len = len; 6107 ctsio->kern_total_len = len; 6108 ctsio->kern_data_resid = 0; 6109 ctsio->kern_rel_offset = 0; 6110 ctsio->kern_sg_entries = 0; 6111 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6112 ctsio->be_move_done = ctl_config_move_done; 6113 ctl_datamove((union ctl_io *)ctsio); 6114 6115 return (CTL_RETVAL_COMPLETE); 6116 } 6117 6118 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6119 lbalen->lba = lba; 6120 lbalen->len = num_blocks; 6121 lbalen->flags = byte2; 6122 retval = lun->backend->config_write((union ctl_io *)ctsio); 6123 6124 return (retval); 6125} 6126 6127int 6128ctl_unmap(struct ctl_scsiio *ctsio) 6129{ 6130 struct ctl_lun *lun; 6131 struct scsi_unmap *cdb; 6132 struct ctl_ptr_len_flags *ptrlen; 6133 struct scsi_unmap_header *hdr; 6134 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6135 uint64_t lba; 6136 uint32_t num_blocks; 6137 int len, retval; 6138 uint8_t byte2; 6139 6140 retval = CTL_RETVAL_COMPLETE; 6141 6142 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6143 6144 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6145 cdb = (struct scsi_unmap *)ctsio->cdb; 6146 6147 len = scsi_2btoul(cdb->length); 6148 byte2 = cdb->byte2; 6149 6150 /* 6151 * If we've got a kernel request that hasn't been malloced yet, 6152 * malloc it and tell the caller the data buffer is here. 6153 */ 6154 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6155 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6156 ctsio->kern_data_len = len; 6157 ctsio->kern_total_len = len; 6158 ctsio->kern_data_resid = 0; 6159 ctsio->kern_rel_offset = 0; 6160 ctsio->kern_sg_entries = 0; 6161 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6162 ctsio->be_move_done = ctl_config_move_done; 6163 ctl_datamove((union ctl_io *)ctsio); 6164 6165 return (CTL_RETVAL_COMPLETE); 6166 } 6167 6168 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6169 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6170 if (len < sizeof (*hdr) || 6171 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6172 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6173 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6174 ctl_set_invalid_field(ctsio, 6175 /*sks_valid*/ 0, 6176 /*command*/ 0, 6177 /*field*/ 0, 6178 /*bit_valid*/ 0, 6179 /*bit*/ 0); 6180 ctl_done((union ctl_io *)ctsio); 6181 return (CTL_RETVAL_COMPLETE); 6182 } 6183 len = scsi_2btoul(hdr->desc_length); 6184 buf = (struct scsi_unmap_desc *)(hdr + 1); 6185 end = buf + len / sizeof(*buf); 6186 6187 endnz = buf; 6188 for (range = buf; range < end; range++) { 6189 lba = scsi_8btou64(range->lba); 6190 num_blocks = scsi_4btoul(range->length); 6191 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6192 || ((lba + num_blocks) < lba)) { 6193 ctl_set_lba_out_of_range(ctsio); 6194 ctl_done((union ctl_io *)ctsio); 6195 return (CTL_RETVAL_COMPLETE); 6196 } 6197 if (num_blocks != 0) 6198 endnz = range + 1; 6199 } 6200 6201 /* 6202 * Block backend can not handle zero last range. 6203 * Filter it out and return if there is nothing left. 6204 */ 6205 len = (uint8_t *)endnz - (uint8_t *)buf; 6206 if (len == 0) { 6207 ctl_set_success(ctsio); 6208 ctl_done((union ctl_io *)ctsio); 6209 return (CTL_RETVAL_COMPLETE); 6210 } 6211 6212 mtx_lock(&lun->lun_lock); 6213 ptrlen = (struct ctl_ptr_len_flags *) 6214 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6215 ptrlen->ptr = (void *)buf; 6216 ptrlen->len = len; 6217 ptrlen->flags = byte2; 6218 ctl_check_blocked(lun); 6219 mtx_unlock(&lun->lun_lock); 6220 6221 retval = lun->backend->config_write((union ctl_io *)ctsio); 6222 return (retval); 6223} 6224 6225/* 6226 * Note that this function currently doesn't actually do anything inside 6227 * CTL to enforce things if the DQue bit is turned on. 6228 * 6229 * Also note that this function can't be used in the default case, because 6230 * the DQue bit isn't set in the changeable mask for the control mode page 6231 * anyway. This is just here as an example for how to implement a page 6232 * handler, and a placeholder in case we want to allow the user to turn 6233 * tagged queueing on and off. 6234 * 6235 * The D_SENSE bit handling is functional, however, and will turn 6236 * descriptor sense on and off for a given LUN. 6237 */ 6238int 6239ctl_control_page_handler(struct ctl_scsiio *ctsio, 6240 struct ctl_page_index *page_index, uint8_t *page_ptr) 6241{ 6242 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6243 struct ctl_lun *lun; 6244 struct ctl_softc *softc; 6245 int set_ua; 6246 uint32_t initidx; 6247 6248 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6249 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6250 set_ua = 0; 6251 6252 user_cp = (struct scsi_control_page *)page_ptr; 6253 current_cp = (struct scsi_control_page *) 6254 (page_index->page_data + (page_index->page_len * 6255 CTL_PAGE_CURRENT)); 6256 saved_cp = (struct scsi_control_page *) 6257 (page_index->page_data + (page_index->page_len * 6258 CTL_PAGE_SAVED)); 6259 6260 softc = control_softc; 6261 6262 mtx_lock(&lun->lun_lock); 6263 if (((current_cp->rlec & SCP_DSENSE) == 0) 6264 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6265 /* 6266 * Descriptor sense is currently turned off and the user 6267 * wants to turn it on. 6268 */ 6269 current_cp->rlec |= SCP_DSENSE; 6270 saved_cp->rlec |= SCP_DSENSE; 6271 lun->flags |= CTL_LUN_SENSE_DESC; 6272 set_ua = 1; 6273 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6274 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6275 /* 6276 * Descriptor sense is currently turned on, and the user 6277 * wants to turn it off. 6278 */ 6279 current_cp->rlec &= ~SCP_DSENSE; 6280 saved_cp->rlec &= ~SCP_DSENSE; 6281 lun->flags &= ~CTL_LUN_SENSE_DESC; 6282 set_ua = 1; 6283 } 6284 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6285 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6286 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6287 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6288 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6289 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6290 set_ua = 1; 6291 } 6292 if ((current_cp->eca_and_aen & SCP_SWP) != 6293 (user_cp->eca_and_aen & SCP_SWP)) { 6294 current_cp->eca_and_aen &= ~SCP_SWP; 6295 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6296 saved_cp->eca_and_aen &= ~SCP_SWP; 6297 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6298 set_ua = 1; 6299 } 6300 if (set_ua != 0) { 6301 int i; 6302 /* 6303 * Let other initiators know that the mode 6304 * parameters for this LUN have changed. 6305 */ 6306 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6307 if (i == initidx) 6308 continue; 6309 6310 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6311 } 6312 } 6313 mtx_unlock(&lun->lun_lock); 6314 6315 return (0); 6316} 6317 6318int 6319ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6320 struct ctl_page_index *page_index, uint8_t *page_ptr) 6321{ 6322 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6323 struct ctl_lun *lun; 6324 int set_ua; 6325 uint32_t initidx; 6326 6327 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6328 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6329 set_ua = 0; 6330 6331 user_cp = (struct scsi_caching_page *)page_ptr; 6332 current_cp = (struct scsi_caching_page *) 6333 (page_index->page_data + (page_index->page_len * 6334 CTL_PAGE_CURRENT)); 6335 saved_cp = (struct scsi_caching_page *) 6336 (page_index->page_data + (page_index->page_len * 6337 CTL_PAGE_SAVED)); 6338 6339 mtx_lock(&lun->lun_lock); 6340 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6341 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6342 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6343 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6344 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6345 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6346 set_ua = 1; 6347 } 6348 if (set_ua != 0) { 6349 int i; 6350 /* 6351 * Let other initiators know that the mode 6352 * parameters for this LUN have changed. 6353 */ 6354 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6355 if (i == initidx) 6356 continue; 6357 6358 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6359 } 6360 } 6361 mtx_unlock(&lun->lun_lock); 6362 6363 return (0); 6364} 6365 6366int 6367ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6368 struct ctl_page_index *page_index, uint8_t *page_ptr) 6369{ 6370 return (0); 6371} 6372 6373int 6374ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6375 struct ctl_page_index *page_index, int pc) 6376{ 6377 struct copan_power_subpage *page; 6378 6379 page = (struct copan_power_subpage *)page_index->page_data + 6380 (page_index->page_len * pc); 6381 6382 switch (pc) { 6383 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6384 /* 6385 * We don't update the changable bits for this page. 6386 */ 6387 break; 6388 case SMS_PAGE_CTRL_CURRENT >> 6: 6389 case SMS_PAGE_CTRL_DEFAULT >> 6: 6390 case SMS_PAGE_CTRL_SAVED >> 6: 6391#ifdef NEEDTOPORT 6392 ctl_update_power_subpage(page); 6393#endif 6394 break; 6395 default: 6396#ifdef NEEDTOPORT 6397 EPRINT(0, "Invalid PC %d!!", pc); 6398#endif 6399 break; 6400 } 6401 return (0); 6402} 6403 6404 6405int 6406ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6407 struct ctl_page_index *page_index, uint8_t *page_ptr) 6408{ 6409 struct copan_aps_subpage *user_sp; 6410 struct copan_aps_subpage *current_sp; 6411 union ctl_modepage_info *modepage_info; 6412 struct ctl_softc *softc; 6413 struct ctl_lun *lun; 6414 int retval; 6415 6416 retval = CTL_RETVAL_COMPLETE; 6417 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6418 (page_index->page_len * CTL_PAGE_CURRENT)); 6419 softc = control_softc; 6420 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6421 6422 user_sp = (struct copan_aps_subpage *)page_ptr; 6423 6424 modepage_info = (union ctl_modepage_info *) 6425 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6426 6427 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6428 modepage_info->header.subpage = page_index->subpage; 6429 modepage_info->aps.lock_active = user_sp->lock_active; 6430 6431 mtx_lock(&softc->ctl_lock); 6432 6433 /* 6434 * If there is a request to lock the LUN and another LUN is locked 6435 * this is an error. If the requested LUN is already locked ignore 6436 * the request. If no LUN is locked attempt to lock it. 6437 * if there is a request to unlock the LUN and the LUN is currently 6438 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6439 * if another LUN is locked or no LUN is locked. 6440 */ 6441 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6442 if (softc->aps_locked_lun == lun->lun) { 6443 /* 6444 * This LUN is already locked, so we're done. 6445 */ 6446 retval = CTL_RETVAL_COMPLETE; 6447 } else if (softc->aps_locked_lun == 0) { 6448 /* 6449 * No one has the lock, pass the request to the 6450 * backend. 6451 */ 6452 retval = lun->backend->config_write( 6453 (union ctl_io *)ctsio); 6454 } else { 6455 /* 6456 * Someone else has the lock, throw out the request. 6457 */ 6458 ctl_set_already_locked(ctsio); 6459 free(ctsio->kern_data_ptr, M_CTL); 6460 ctl_done((union ctl_io *)ctsio); 6461 6462 /* 6463 * Set the return value so that ctl_do_mode_select() 6464 * won't try to complete the command. We already 6465 * completed it here. 6466 */ 6467 retval = CTL_RETVAL_ERROR; 6468 } 6469 } else if (softc->aps_locked_lun == lun->lun) { 6470 /* 6471 * This LUN is locked, so pass the unlock request to the 6472 * backend. 6473 */ 6474 retval = lun->backend->config_write((union ctl_io *)ctsio); 6475 } 6476 mtx_unlock(&softc->ctl_lock); 6477 6478 return (retval); 6479} 6480 6481int 6482ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6483 struct ctl_page_index *page_index, 6484 uint8_t *page_ptr) 6485{ 6486 uint8_t *c; 6487 int i; 6488 6489 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6490 ctl_time_io_secs = 6491 (c[0] << 8) | 6492 (c[1] << 0) | 6493 0; 6494 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6495 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6496 printf("page data:"); 6497 for (i=0; i<8; i++) 6498 printf(" %.2x",page_ptr[i]); 6499 printf("\n"); 6500 return (0); 6501} 6502 6503int 6504ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6505 struct ctl_page_index *page_index, 6506 int pc) 6507{ 6508 struct copan_debugconf_subpage *page; 6509 6510 page = (struct copan_debugconf_subpage *)page_index->page_data + 6511 (page_index->page_len * pc); 6512 6513 switch (pc) { 6514 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6515 case SMS_PAGE_CTRL_DEFAULT >> 6: 6516 case SMS_PAGE_CTRL_SAVED >> 6: 6517 /* 6518 * We don't update the changable or default bits for this page. 6519 */ 6520 break; 6521 case SMS_PAGE_CTRL_CURRENT >> 6: 6522 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6523 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6524 break; 6525 default: 6526#ifdef NEEDTOPORT 6527 EPRINT(0, "Invalid PC %d!!", pc); 6528#endif /* NEEDTOPORT */ 6529 break; 6530 } 6531 return (0); 6532} 6533 6534 6535static int 6536ctl_do_mode_select(union ctl_io *io) 6537{ 6538 struct scsi_mode_page_header *page_header; 6539 struct ctl_page_index *page_index; 6540 struct ctl_scsiio *ctsio; 6541 int control_dev, page_len; 6542 int page_len_offset, page_len_size; 6543 union ctl_modepage_info *modepage_info; 6544 struct ctl_lun *lun; 6545 int *len_left, *len_used; 6546 int retval, i; 6547 6548 ctsio = &io->scsiio; 6549 page_index = NULL; 6550 page_len = 0; 6551 retval = CTL_RETVAL_COMPLETE; 6552 6553 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6554 6555 if (lun->be_lun->lun_type != T_DIRECT) 6556 control_dev = 1; 6557 else 6558 control_dev = 0; 6559 6560 modepage_info = (union ctl_modepage_info *) 6561 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6562 len_left = &modepage_info->header.len_left; 6563 len_used = &modepage_info->header.len_used; 6564 6565do_next_page: 6566 6567 page_header = (struct scsi_mode_page_header *) 6568 (ctsio->kern_data_ptr + *len_used); 6569 6570 if (*len_left == 0) { 6571 free(ctsio->kern_data_ptr, M_CTL); 6572 ctl_set_success(ctsio); 6573 ctl_done((union ctl_io *)ctsio); 6574 return (CTL_RETVAL_COMPLETE); 6575 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6576 6577 free(ctsio->kern_data_ptr, M_CTL); 6578 ctl_set_param_len_error(ctsio); 6579 ctl_done((union ctl_io *)ctsio); 6580 return (CTL_RETVAL_COMPLETE); 6581 6582 } else if ((page_header->page_code & SMPH_SPF) 6583 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6584 6585 free(ctsio->kern_data_ptr, M_CTL); 6586 ctl_set_param_len_error(ctsio); 6587 ctl_done((union ctl_io *)ctsio); 6588 return (CTL_RETVAL_COMPLETE); 6589 } 6590 6591 6592 /* 6593 * XXX KDM should we do something with the block descriptor? 6594 */ 6595 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6596 6597 if ((control_dev != 0) 6598 && (lun->mode_pages.index[i].page_flags & 6599 CTL_PAGE_FLAG_DISK_ONLY)) 6600 continue; 6601 6602 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6603 (page_header->page_code & SMPH_PC_MASK)) 6604 continue; 6605 6606 /* 6607 * If neither page has a subpage code, then we've got a 6608 * match. 6609 */ 6610 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6611 && ((page_header->page_code & SMPH_SPF) == 0)) { 6612 page_index = &lun->mode_pages.index[i]; 6613 page_len = page_header->page_length; 6614 break; 6615 } 6616 6617 /* 6618 * If both pages have subpages, then the subpage numbers 6619 * have to match. 6620 */ 6621 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6622 && (page_header->page_code & SMPH_SPF)) { 6623 struct scsi_mode_page_header_sp *sph; 6624 6625 sph = (struct scsi_mode_page_header_sp *)page_header; 6626 6627 if (lun->mode_pages.index[i].subpage == 6628 sph->subpage) { 6629 page_index = &lun->mode_pages.index[i]; 6630 page_len = scsi_2btoul(sph->page_length); 6631 break; 6632 } 6633 } 6634 } 6635 6636 /* 6637 * If we couldn't find the page, or if we don't have a mode select 6638 * handler for it, send back an error to the user. 6639 */ 6640 if ((page_index == NULL) 6641 || (page_index->select_handler == NULL)) { 6642 ctl_set_invalid_field(ctsio, 6643 /*sks_valid*/ 1, 6644 /*command*/ 0, 6645 /*field*/ *len_used, 6646 /*bit_valid*/ 0, 6647 /*bit*/ 0); 6648 free(ctsio->kern_data_ptr, M_CTL); 6649 ctl_done((union ctl_io *)ctsio); 6650 return (CTL_RETVAL_COMPLETE); 6651 } 6652 6653 if (page_index->page_code & SMPH_SPF) { 6654 page_len_offset = 2; 6655 page_len_size = 2; 6656 } else { 6657 page_len_size = 1; 6658 page_len_offset = 1; 6659 } 6660 6661 /* 6662 * If the length the initiator gives us isn't the one we specify in 6663 * the mode page header, or if they didn't specify enough data in 6664 * the CDB to avoid truncating this page, kick out the request. 6665 */ 6666 if ((page_len != (page_index->page_len - page_len_offset - 6667 page_len_size)) 6668 || (*len_left < page_index->page_len)) { 6669 6670 6671 ctl_set_invalid_field(ctsio, 6672 /*sks_valid*/ 1, 6673 /*command*/ 0, 6674 /*field*/ *len_used + page_len_offset, 6675 /*bit_valid*/ 0, 6676 /*bit*/ 0); 6677 free(ctsio->kern_data_ptr, M_CTL); 6678 ctl_done((union ctl_io *)ctsio); 6679 return (CTL_RETVAL_COMPLETE); 6680 } 6681 6682 /* 6683 * Run through the mode page, checking to make sure that the bits 6684 * the user changed are actually legal for him to change. 6685 */ 6686 for (i = 0; i < page_index->page_len; i++) { 6687 uint8_t *user_byte, *change_mask, *current_byte; 6688 int bad_bit; 6689 int j; 6690 6691 user_byte = (uint8_t *)page_header + i; 6692 change_mask = page_index->page_data + 6693 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6694 current_byte = page_index->page_data + 6695 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6696 6697 /* 6698 * Check to see whether the user set any bits in this byte 6699 * that he is not allowed to set. 6700 */ 6701 if ((*user_byte & ~(*change_mask)) == 6702 (*current_byte & ~(*change_mask))) 6703 continue; 6704 6705 /* 6706 * Go through bit by bit to determine which one is illegal. 6707 */ 6708 bad_bit = 0; 6709 for (j = 7; j >= 0; j--) { 6710 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6711 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6712 bad_bit = i; 6713 break; 6714 } 6715 } 6716 ctl_set_invalid_field(ctsio, 6717 /*sks_valid*/ 1, 6718 /*command*/ 0, 6719 /*field*/ *len_used + i, 6720 /*bit_valid*/ 1, 6721 /*bit*/ bad_bit); 6722 free(ctsio->kern_data_ptr, M_CTL); 6723 ctl_done((union ctl_io *)ctsio); 6724 return (CTL_RETVAL_COMPLETE); 6725 } 6726 6727 /* 6728 * Decrement these before we call the page handler, since we may 6729 * end up getting called back one way or another before the handler 6730 * returns to this context. 6731 */ 6732 *len_left -= page_index->page_len; 6733 *len_used += page_index->page_len; 6734 6735 retval = page_index->select_handler(ctsio, page_index, 6736 (uint8_t *)page_header); 6737 6738 /* 6739 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6740 * wait until this queued command completes to finish processing 6741 * the mode page. If it returns anything other than 6742 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6743 * already set the sense information, freed the data pointer, and 6744 * completed the io for us. 6745 */ 6746 if (retval != CTL_RETVAL_COMPLETE) 6747 goto bailout_no_done; 6748 6749 /* 6750 * If the initiator sent us more than one page, parse the next one. 6751 */ 6752 if (*len_left > 0) 6753 goto do_next_page; 6754 6755 ctl_set_success(ctsio); 6756 free(ctsio->kern_data_ptr, M_CTL); 6757 ctl_done((union ctl_io *)ctsio); 6758 6759bailout_no_done: 6760 6761 return (CTL_RETVAL_COMPLETE); 6762 6763} 6764 6765int 6766ctl_mode_select(struct ctl_scsiio *ctsio) 6767{ 6768 int param_len, pf, sp; 6769 int header_size, bd_len; 6770 int len_left, len_used; 6771 struct ctl_page_index *page_index; 6772 struct ctl_lun *lun; 6773 int control_dev, page_len; 6774 union ctl_modepage_info *modepage_info; 6775 int retval; 6776 6777 pf = 0; 6778 sp = 0; 6779 page_len = 0; 6780 len_used = 0; 6781 len_left = 0; 6782 retval = 0; 6783 bd_len = 0; 6784 page_index = NULL; 6785 6786 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6787 6788 if (lun->be_lun->lun_type != T_DIRECT) 6789 control_dev = 1; 6790 else 6791 control_dev = 0; 6792 6793 switch (ctsio->cdb[0]) { 6794 case MODE_SELECT_6: { 6795 struct scsi_mode_select_6 *cdb; 6796 6797 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6798 6799 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6800 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6801 6802 param_len = cdb->length; 6803 header_size = sizeof(struct scsi_mode_header_6); 6804 break; 6805 } 6806 case MODE_SELECT_10: { 6807 struct scsi_mode_select_10 *cdb; 6808 6809 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6810 6811 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6812 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6813 6814 param_len = scsi_2btoul(cdb->length); 6815 header_size = sizeof(struct scsi_mode_header_10); 6816 break; 6817 } 6818 default: 6819 ctl_set_invalid_opcode(ctsio); 6820 ctl_done((union ctl_io *)ctsio); 6821 return (CTL_RETVAL_COMPLETE); 6822 break; /* NOTREACHED */ 6823 } 6824 6825 /* 6826 * From SPC-3: 6827 * "A parameter list length of zero indicates that the Data-Out Buffer 6828 * shall be empty. This condition shall not be considered as an error." 6829 */ 6830 if (param_len == 0) { 6831 ctl_set_success(ctsio); 6832 ctl_done((union ctl_io *)ctsio); 6833 return (CTL_RETVAL_COMPLETE); 6834 } 6835 6836 /* 6837 * Since we'll hit this the first time through, prior to 6838 * allocation, we don't need to free a data buffer here. 6839 */ 6840 if (param_len < header_size) { 6841 ctl_set_param_len_error(ctsio); 6842 ctl_done((union ctl_io *)ctsio); 6843 return (CTL_RETVAL_COMPLETE); 6844 } 6845 6846 /* 6847 * Allocate the data buffer and grab the user's data. In theory, 6848 * we shouldn't have to sanity check the parameter list length here 6849 * because the maximum size is 64K. We should be able to malloc 6850 * that much without too many problems. 6851 */ 6852 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6853 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6854 ctsio->kern_data_len = param_len; 6855 ctsio->kern_total_len = param_len; 6856 ctsio->kern_data_resid = 0; 6857 ctsio->kern_rel_offset = 0; 6858 ctsio->kern_sg_entries = 0; 6859 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6860 ctsio->be_move_done = ctl_config_move_done; 6861 ctl_datamove((union ctl_io *)ctsio); 6862 6863 return (CTL_RETVAL_COMPLETE); 6864 } 6865 6866 switch (ctsio->cdb[0]) { 6867 case MODE_SELECT_6: { 6868 struct scsi_mode_header_6 *mh6; 6869 6870 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6871 bd_len = mh6->blk_desc_len; 6872 break; 6873 } 6874 case MODE_SELECT_10: { 6875 struct scsi_mode_header_10 *mh10; 6876 6877 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6878 bd_len = scsi_2btoul(mh10->blk_desc_len); 6879 break; 6880 } 6881 default: 6882 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6883 break; 6884 } 6885 6886 if (param_len < (header_size + bd_len)) { 6887 free(ctsio->kern_data_ptr, M_CTL); 6888 ctl_set_param_len_error(ctsio); 6889 ctl_done((union ctl_io *)ctsio); 6890 return (CTL_RETVAL_COMPLETE); 6891 } 6892 6893 /* 6894 * Set the IO_CONT flag, so that if this I/O gets passed to 6895 * ctl_config_write_done(), it'll get passed back to 6896 * ctl_do_mode_select() for further processing, or completion if 6897 * we're all done. 6898 */ 6899 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6900 ctsio->io_cont = ctl_do_mode_select; 6901 6902 modepage_info = (union ctl_modepage_info *) 6903 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6904 6905 memset(modepage_info, 0, sizeof(*modepage_info)); 6906 6907 len_left = param_len - header_size - bd_len; 6908 len_used = header_size + bd_len; 6909 6910 modepage_info->header.len_left = len_left; 6911 modepage_info->header.len_used = len_used; 6912 6913 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6914} 6915 6916int 6917ctl_mode_sense(struct ctl_scsiio *ctsio) 6918{ 6919 struct ctl_lun *lun; 6920 int pc, page_code, dbd, llba, subpage; 6921 int alloc_len, page_len, header_len, total_len; 6922 struct scsi_mode_block_descr *block_desc; 6923 struct ctl_page_index *page_index; 6924 int control_dev; 6925 6926 dbd = 0; 6927 llba = 0; 6928 block_desc = NULL; 6929 page_index = NULL; 6930 6931 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6932 6933 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6934 6935 if (lun->be_lun->lun_type != T_DIRECT) 6936 control_dev = 1; 6937 else 6938 control_dev = 0; 6939 6940 if (lun->flags & CTL_LUN_PR_RESERVED) { 6941 uint32_t residx; 6942 6943 /* 6944 * XXX KDM need a lock here. 6945 */ 6946 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6947 if ((lun->res_type == SPR_TYPE_EX_AC 6948 && residx != lun->pr_res_idx) 6949 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6950 || lun->res_type == SPR_TYPE_EX_AC_AR) 6951 && lun->pr_keys[residx] == 0)) { 6952 ctl_set_reservation_conflict(ctsio); 6953 ctl_done((union ctl_io *)ctsio); 6954 return (CTL_RETVAL_COMPLETE); 6955 } 6956 } 6957 6958 switch (ctsio->cdb[0]) { 6959 case MODE_SENSE_6: { 6960 struct scsi_mode_sense_6 *cdb; 6961 6962 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6963 6964 header_len = sizeof(struct scsi_mode_hdr_6); 6965 if (cdb->byte2 & SMS_DBD) 6966 dbd = 1; 6967 else 6968 header_len += sizeof(struct scsi_mode_block_descr); 6969 6970 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6971 page_code = cdb->page & SMS_PAGE_CODE; 6972 subpage = cdb->subpage; 6973 alloc_len = cdb->length; 6974 break; 6975 } 6976 case MODE_SENSE_10: { 6977 struct scsi_mode_sense_10 *cdb; 6978 6979 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6980 6981 header_len = sizeof(struct scsi_mode_hdr_10); 6982 6983 if (cdb->byte2 & SMS_DBD) 6984 dbd = 1; 6985 else 6986 header_len += sizeof(struct scsi_mode_block_descr); 6987 if (cdb->byte2 & SMS10_LLBAA) 6988 llba = 1; 6989 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6990 page_code = cdb->page & SMS_PAGE_CODE; 6991 subpage = cdb->subpage; 6992 alloc_len = scsi_2btoul(cdb->length); 6993 break; 6994 } 6995 default: 6996 ctl_set_invalid_opcode(ctsio); 6997 ctl_done((union ctl_io *)ctsio); 6998 return (CTL_RETVAL_COMPLETE); 6999 break; /* NOTREACHED */ 7000 } 7001 7002 /* 7003 * We have to make a first pass through to calculate the size of 7004 * the pages that match the user's query. Then we allocate enough 7005 * memory to hold it, and actually copy the data into the buffer. 7006 */ 7007 switch (page_code) { 7008 case SMS_ALL_PAGES_PAGE: { 7009 int i; 7010 7011 page_len = 0; 7012 7013 /* 7014 * At the moment, values other than 0 and 0xff here are 7015 * reserved according to SPC-3. 7016 */ 7017 if ((subpage != SMS_SUBPAGE_PAGE_0) 7018 && (subpage != SMS_SUBPAGE_ALL)) { 7019 ctl_set_invalid_field(ctsio, 7020 /*sks_valid*/ 1, 7021 /*command*/ 1, 7022 /*field*/ 3, 7023 /*bit_valid*/ 0, 7024 /*bit*/ 0); 7025 ctl_done((union ctl_io *)ctsio); 7026 return (CTL_RETVAL_COMPLETE); 7027 } 7028 7029 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7030 if ((control_dev != 0) 7031 && (lun->mode_pages.index[i].page_flags & 7032 CTL_PAGE_FLAG_DISK_ONLY)) 7033 continue; 7034 7035 /* 7036 * We don't use this subpage if the user didn't 7037 * request all subpages. 7038 */ 7039 if ((lun->mode_pages.index[i].subpage != 0) 7040 && (subpage == SMS_SUBPAGE_PAGE_0)) 7041 continue; 7042 7043#if 0 7044 printf("found page %#x len %d\n", 7045 lun->mode_pages.index[i].page_code & 7046 SMPH_PC_MASK, 7047 lun->mode_pages.index[i].page_len); 7048#endif 7049 page_len += lun->mode_pages.index[i].page_len; 7050 } 7051 break; 7052 } 7053 default: { 7054 int i; 7055 7056 page_len = 0; 7057 7058 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7059 /* Look for the right page code */ 7060 if ((lun->mode_pages.index[i].page_code & 7061 SMPH_PC_MASK) != page_code) 7062 continue; 7063 7064 /* Look for the right subpage or the subpage wildcard*/ 7065 if ((lun->mode_pages.index[i].subpage != subpage) 7066 && (subpage != SMS_SUBPAGE_ALL)) 7067 continue; 7068 7069 /* Make sure the page is supported for this dev type */ 7070 if ((control_dev != 0) 7071 && (lun->mode_pages.index[i].page_flags & 7072 CTL_PAGE_FLAG_DISK_ONLY)) 7073 continue; 7074 7075#if 0 7076 printf("found page %#x len %d\n", 7077 lun->mode_pages.index[i].page_code & 7078 SMPH_PC_MASK, 7079 lun->mode_pages.index[i].page_len); 7080#endif 7081 7082 page_len += lun->mode_pages.index[i].page_len; 7083 } 7084 7085 if (page_len == 0) { 7086 ctl_set_invalid_field(ctsio, 7087 /*sks_valid*/ 1, 7088 /*command*/ 1, 7089 /*field*/ 2, 7090 /*bit_valid*/ 1, 7091 /*bit*/ 5); 7092 ctl_done((union ctl_io *)ctsio); 7093 return (CTL_RETVAL_COMPLETE); 7094 } 7095 break; 7096 } 7097 } 7098 7099 total_len = header_len + page_len; 7100#if 0 7101 printf("header_len = %d, page_len = %d, total_len = %d\n", 7102 header_len, page_len, total_len); 7103#endif 7104 7105 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7106 ctsio->kern_sg_entries = 0; 7107 ctsio->kern_data_resid = 0; 7108 ctsio->kern_rel_offset = 0; 7109 if (total_len < alloc_len) { 7110 ctsio->residual = alloc_len - total_len; 7111 ctsio->kern_data_len = total_len; 7112 ctsio->kern_total_len = total_len; 7113 } else { 7114 ctsio->residual = 0; 7115 ctsio->kern_data_len = alloc_len; 7116 ctsio->kern_total_len = alloc_len; 7117 } 7118 7119 switch (ctsio->cdb[0]) { 7120 case MODE_SENSE_6: { 7121 struct scsi_mode_hdr_6 *header; 7122 7123 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7124 7125 header->datalen = ctl_min(total_len - 1, 254); 7126 if (control_dev == 0) { 7127 header->dev_specific = 0x10; /* DPOFUA */ 7128 if ((lun->flags & CTL_LUN_READONLY) || 7129 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7130 .eca_and_aen & SCP_SWP) != 0) 7131 header->dev_specific |= 0x80; /* WP */ 7132 } 7133 if (dbd) 7134 header->block_descr_len = 0; 7135 else 7136 header->block_descr_len = 7137 sizeof(struct scsi_mode_block_descr); 7138 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7139 break; 7140 } 7141 case MODE_SENSE_10: { 7142 struct scsi_mode_hdr_10 *header; 7143 int datalen; 7144 7145 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7146 7147 datalen = ctl_min(total_len - 2, 65533); 7148 scsi_ulto2b(datalen, header->datalen); 7149 if (control_dev == 0) { 7150 header->dev_specific = 0x10; /* DPOFUA */ 7151 if ((lun->flags & CTL_LUN_READONLY) || 7152 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7153 .eca_and_aen & SCP_SWP) != 0) 7154 header->dev_specific |= 0x80; /* WP */ 7155 } 7156 if (dbd) 7157 scsi_ulto2b(0, header->block_descr_len); 7158 else 7159 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7160 header->block_descr_len); 7161 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7162 break; 7163 } 7164 default: 7165 panic("invalid CDB type %#x", ctsio->cdb[0]); 7166 break; /* NOTREACHED */ 7167 } 7168 7169 /* 7170 * If we've got a disk, use its blocksize in the block 7171 * descriptor. Otherwise, just set it to 0. 7172 */ 7173 if (dbd == 0) { 7174 if (control_dev == 0) 7175 scsi_ulto3b(lun->be_lun->blocksize, 7176 block_desc->block_len); 7177 else 7178 scsi_ulto3b(0, block_desc->block_len); 7179 } 7180 7181 switch (page_code) { 7182 case SMS_ALL_PAGES_PAGE: { 7183 int i, data_used; 7184 7185 data_used = header_len; 7186 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7187 struct ctl_page_index *page_index; 7188 7189 page_index = &lun->mode_pages.index[i]; 7190 7191 if ((control_dev != 0) 7192 && (page_index->page_flags & 7193 CTL_PAGE_FLAG_DISK_ONLY)) 7194 continue; 7195 7196 /* 7197 * We don't use this subpage if the user didn't 7198 * request all subpages. We already checked (above) 7199 * to make sure the user only specified a subpage 7200 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7201 */ 7202 if ((page_index->subpage != 0) 7203 && (subpage == SMS_SUBPAGE_PAGE_0)) 7204 continue; 7205 7206 /* 7207 * Call the handler, if it exists, to update the 7208 * page to the latest values. 7209 */ 7210 if (page_index->sense_handler != NULL) 7211 page_index->sense_handler(ctsio, page_index,pc); 7212 7213 memcpy(ctsio->kern_data_ptr + data_used, 7214 page_index->page_data + 7215 (page_index->page_len * pc), 7216 page_index->page_len); 7217 data_used += page_index->page_len; 7218 } 7219 break; 7220 } 7221 default: { 7222 int i, data_used; 7223 7224 data_used = header_len; 7225 7226 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7227 struct ctl_page_index *page_index; 7228 7229 page_index = &lun->mode_pages.index[i]; 7230 7231 /* Look for the right page code */ 7232 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7233 continue; 7234 7235 /* Look for the right subpage or the subpage wildcard*/ 7236 if ((page_index->subpage != subpage) 7237 && (subpage != SMS_SUBPAGE_ALL)) 7238 continue; 7239 7240 /* Make sure the page is supported for this dev type */ 7241 if ((control_dev != 0) 7242 && (page_index->page_flags & 7243 CTL_PAGE_FLAG_DISK_ONLY)) 7244 continue; 7245 7246 /* 7247 * Call the handler, if it exists, to update the 7248 * page to the latest values. 7249 */ 7250 if (page_index->sense_handler != NULL) 7251 page_index->sense_handler(ctsio, page_index,pc); 7252 7253 memcpy(ctsio->kern_data_ptr + data_used, 7254 page_index->page_data + 7255 (page_index->page_len * pc), 7256 page_index->page_len); 7257 data_used += page_index->page_len; 7258 } 7259 break; 7260 } 7261 } 7262 7263 ctsio->scsi_status = SCSI_STATUS_OK; 7264 7265 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7266 ctsio->be_move_done = ctl_config_move_done; 7267 ctl_datamove((union ctl_io *)ctsio); 7268 7269 return (CTL_RETVAL_COMPLETE); 7270} 7271 7272int 7273ctl_read_capacity(struct ctl_scsiio *ctsio) 7274{ 7275 struct scsi_read_capacity *cdb; 7276 struct scsi_read_capacity_data *data; 7277 struct ctl_lun *lun; 7278 uint32_t lba; 7279 7280 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7281 7282 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7283 7284 lba = scsi_4btoul(cdb->addr); 7285 if (((cdb->pmi & SRC_PMI) == 0) 7286 && (lba != 0)) { 7287 ctl_set_invalid_field(/*ctsio*/ ctsio, 7288 /*sks_valid*/ 1, 7289 /*command*/ 1, 7290 /*field*/ 2, 7291 /*bit_valid*/ 0, 7292 /*bit*/ 0); 7293 ctl_done((union ctl_io *)ctsio); 7294 return (CTL_RETVAL_COMPLETE); 7295 } 7296 7297 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7298 7299 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7300 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7301 ctsio->residual = 0; 7302 ctsio->kern_data_len = sizeof(*data); 7303 ctsio->kern_total_len = sizeof(*data); 7304 ctsio->kern_data_resid = 0; 7305 ctsio->kern_rel_offset = 0; 7306 ctsio->kern_sg_entries = 0; 7307 7308 /* 7309 * If the maximum LBA is greater than 0xfffffffe, the user must 7310 * issue a SERVICE ACTION IN (16) command, with the read capacity 7311 * serivce action set. 7312 */ 7313 if (lun->be_lun->maxlba > 0xfffffffe) 7314 scsi_ulto4b(0xffffffff, data->addr); 7315 else 7316 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7317 7318 /* 7319 * XXX KDM this may not be 512 bytes... 7320 */ 7321 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7322 7323 ctsio->scsi_status = SCSI_STATUS_OK; 7324 7325 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7326 ctsio->be_move_done = ctl_config_move_done; 7327 ctl_datamove((union ctl_io *)ctsio); 7328 7329 return (CTL_RETVAL_COMPLETE); 7330} 7331 7332int 7333ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7334{ 7335 struct scsi_read_capacity_16 *cdb; 7336 struct scsi_read_capacity_data_long *data; 7337 struct ctl_lun *lun; 7338 uint64_t lba; 7339 uint32_t alloc_len; 7340 7341 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7342 7343 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7344 7345 alloc_len = scsi_4btoul(cdb->alloc_len); 7346 lba = scsi_8btou64(cdb->addr); 7347 7348 if ((cdb->reladr & SRC16_PMI) 7349 && (lba != 0)) { 7350 ctl_set_invalid_field(/*ctsio*/ ctsio, 7351 /*sks_valid*/ 1, 7352 /*command*/ 1, 7353 /*field*/ 2, 7354 /*bit_valid*/ 0, 7355 /*bit*/ 0); 7356 ctl_done((union ctl_io *)ctsio); 7357 return (CTL_RETVAL_COMPLETE); 7358 } 7359 7360 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7361 7362 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7363 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7364 7365 if (sizeof(*data) < alloc_len) { 7366 ctsio->residual = alloc_len - sizeof(*data); 7367 ctsio->kern_data_len = sizeof(*data); 7368 ctsio->kern_total_len = sizeof(*data); 7369 } else { 7370 ctsio->residual = 0; 7371 ctsio->kern_data_len = alloc_len; 7372 ctsio->kern_total_len = alloc_len; 7373 } 7374 ctsio->kern_data_resid = 0; 7375 ctsio->kern_rel_offset = 0; 7376 ctsio->kern_sg_entries = 0; 7377 7378 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7379 /* XXX KDM this may not be 512 bytes... */ 7380 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7381 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7382 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7383 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7384 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7385 7386 ctsio->scsi_status = SCSI_STATUS_OK; 7387 7388 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7389 ctsio->be_move_done = ctl_config_move_done; 7390 ctl_datamove((union ctl_io *)ctsio); 7391 7392 return (CTL_RETVAL_COMPLETE); 7393} 7394 7395int 7396ctl_read_defect(struct ctl_scsiio *ctsio) 7397{ 7398 struct scsi_read_defect_data_10 *ccb10; 7399 struct scsi_read_defect_data_12 *ccb12; 7400 struct scsi_read_defect_data_hdr_10 *data10; 7401 struct scsi_read_defect_data_hdr_12 *data12; 7402 struct ctl_lun *lun; 7403 uint32_t alloc_len, data_len; 7404 uint8_t format; 7405 7406 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7407 7408 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7409 if (lun->flags & CTL_LUN_PR_RESERVED) { 7410 uint32_t residx; 7411 7412 /* 7413 * XXX KDM need a lock here. 7414 */ 7415 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 7416 if ((lun->res_type == SPR_TYPE_EX_AC 7417 && residx != lun->pr_res_idx) 7418 || ((lun->res_type == SPR_TYPE_EX_AC_RO 7419 || lun->res_type == SPR_TYPE_EX_AC_AR) 7420 && lun->pr_keys[residx] == 0)) { 7421 ctl_set_reservation_conflict(ctsio); 7422 ctl_done((union ctl_io *)ctsio); 7423 return (CTL_RETVAL_COMPLETE); 7424 } 7425 } 7426 7427 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7428 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7429 format = ccb10->format; 7430 alloc_len = scsi_2btoul(ccb10->alloc_length); 7431 data_len = sizeof(*data10); 7432 } else { 7433 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7434 format = ccb12->format; 7435 alloc_len = scsi_4btoul(ccb12->alloc_length); 7436 data_len = sizeof(*data12); 7437 } 7438 if (alloc_len == 0) { 7439 ctl_set_success(ctsio); 7440 ctl_done((union ctl_io *)ctsio); 7441 return (CTL_RETVAL_COMPLETE); 7442 } 7443 7444 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7445 if (data_len < alloc_len) { 7446 ctsio->residual = alloc_len - data_len; 7447 ctsio->kern_data_len = data_len; 7448 ctsio->kern_total_len = data_len; 7449 } else { 7450 ctsio->residual = 0; 7451 ctsio->kern_data_len = alloc_len; 7452 ctsio->kern_total_len = alloc_len; 7453 } 7454 ctsio->kern_data_resid = 0; 7455 ctsio->kern_rel_offset = 0; 7456 ctsio->kern_sg_entries = 0; 7457 7458 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7459 data10 = (struct scsi_read_defect_data_hdr_10 *) 7460 ctsio->kern_data_ptr; 7461 data10->format = format; 7462 scsi_ulto2b(0, data10->length); 7463 } else { 7464 data12 = (struct scsi_read_defect_data_hdr_12 *) 7465 ctsio->kern_data_ptr; 7466 data12->format = format; 7467 scsi_ulto2b(0, data12->generation); 7468 scsi_ulto4b(0, data12->length); 7469 } 7470 7471 ctsio->scsi_status = SCSI_STATUS_OK; 7472 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7473 ctsio->be_move_done = ctl_config_move_done; 7474 ctl_datamove((union ctl_io *)ctsio); 7475 return (CTL_RETVAL_COMPLETE); 7476} 7477 7478int 7479ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7480{ 7481 struct scsi_maintenance_in *cdb; 7482 int retval; 7483 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7484 int num_target_port_groups, num_target_ports, single; 7485 struct ctl_lun *lun; 7486 struct ctl_softc *softc; 7487 struct ctl_port *port; 7488 struct scsi_target_group_data *rtg_ptr; 7489 struct scsi_target_group_data_extended *rtg_ext_ptr; 7490 struct scsi_target_port_group_descriptor *tpg_desc; 7491 7492 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7493 7494 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7495 softc = control_softc; 7496 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7497 7498 retval = CTL_RETVAL_COMPLETE; 7499 7500 switch (cdb->byte2 & STG_PDF_MASK) { 7501 case STG_PDF_LENGTH: 7502 ext = 0; 7503 break; 7504 case STG_PDF_EXTENDED: 7505 ext = 1; 7506 break; 7507 default: 7508 ctl_set_invalid_field(/*ctsio*/ ctsio, 7509 /*sks_valid*/ 1, 7510 /*command*/ 1, 7511 /*field*/ 2, 7512 /*bit_valid*/ 1, 7513 /*bit*/ 5); 7514 ctl_done((union ctl_io *)ctsio); 7515 return(retval); 7516 } 7517 7518 single = ctl_is_single; 7519 if (single) 7520 num_target_port_groups = 1; 7521 else 7522 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7523 num_target_ports = 0; 7524 mtx_lock(&softc->ctl_lock); 7525 STAILQ_FOREACH(port, &softc->port_list, links) { 7526 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7527 continue; 7528 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7529 continue; 7530 num_target_ports++; 7531 } 7532 mtx_unlock(&softc->ctl_lock); 7533 7534 if (ext) 7535 total_len = sizeof(struct scsi_target_group_data_extended); 7536 else 7537 total_len = sizeof(struct scsi_target_group_data); 7538 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7539 num_target_port_groups + 7540 sizeof(struct scsi_target_port_descriptor) * 7541 num_target_ports * num_target_port_groups; 7542 7543 alloc_len = scsi_4btoul(cdb->length); 7544 7545 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7546 7547 ctsio->kern_sg_entries = 0; 7548 7549 if (total_len < alloc_len) { 7550 ctsio->residual = alloc_len - total_len; 7551 ctsio->kern_data_len = total_len; 7552 ctsio->kern_total_len = total_len; 7553 } else { 7554 ctsio->residual = 0; 7555 ctsio->kern_data_len = alloc_len; 7556 ctsio->kern_total_len = alloc_len; 7557 } 7558 ctsio->kern_data_resid = 0; 7559 ctsio->kern_rel_offset = 0; 7560 7561 if (ext) { 7562 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7563 ctsio->kern_data_ptr; 7564 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7565 rtg_ext_ptr->format_type = 0x10; 7566 rtg_ext_ptr->implicit_transition_time = 0; 7567 tpg_desc = &rtg_ext_ptr->groups[0]; 7568 } else { 7569 rtg_ptr = (struct scsi_target_group_data *) 7570 ctsio->kern_data_ptr; 7571 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7572 tpg_desc = &rtg_ptr->groups[0]; 7573 } 7574 7575 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7576 mtx_lock(&softc->ctl_lock); 7577 for (g = 0; g < num_target_port_groups; g++) { 7578 if (g == pg) 7579 tpg_desc->pref_state = TPG_PRIMARY | 7580 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7581 else 7582 tpg_desc->pref_state = 7583 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7584 tpg_desc->support = TPG_AO_SUP; 7585 if (!single) 7586 tpg_desc->support |= TPG_AN_SUP; 7587 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7588 tpg_desc->status = TPG_IMPLICIT; 7589 pc = 0; 7590 STAILQ_FOREACH(port, &softc->port_list, links) { 7591 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7592 continue; 7593 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7594 CTL_MAX_LUNS) 7595 continue; 7596 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7597 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7598 relative_target_port_identifier); 7599 pc++; 7600 } 7601 tpg_desc->target_port_count = pc; 7602 tpg_desc = (struct scsi_target_port_group_descriptor *) 7603 &tpg_desc->descriptors[pc]; 7604 } 7605 mtx_unlock(&softc->ctl_lock); 7606 7607 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7608 ctsio->be_move_done = ctl_config_move_done; 7609 7610 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7611 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7612 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7613 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7614 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7615 7616 ctl_datamove((union ctl_io *)ctsio); 7617 return(retval); 7618} 7619 7620int 7621ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7622{ 7623 struct ctl_lun *lun; 7624 struct scsi_report_supported_opcodes *cdb; 7625 const struct ctl_cmd_entry *entry, *sentry; 7626 struct scsi_report_supported_opcodes_all *all; 7627 struct scsi_report_supported_opcodes_descr *descr; 7628 struct scsi_report_supported_opcodes_one *one; 7629 int retval; 7630 int alloc_len, total_len; 7631 int opcode, service_action, i, j, num; 7632 7633 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7634 7635 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7636 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7637 7638 retval = CTL_RETVAL_COMPLETE; 7639 7640 opcode = cdb->requested_opcode; 7641 service_action = scsi_2btoul(cdb->requested_service_action); 7642 switch (cdb->options & RSO_OPTIONS_MASK) { 7643 case RSO_OPTIONS_ALL: 7644 num = 0; 7645 for (i = 0; i < 256; i++) { 7646 entry = &ctl_cmd_table[i]; 7647 if (entry->flags & CTL_CMD_FLAG_SA5) { 7648 for (j = 0; j < 32; j++) { 7649 sentry = &((const struct ctl_cmd_entry *) 7650 entry->execute)[j]; 7651 if (ctl_cmd_applicable( 7652 lun->be_lun->lun_type, sentry)) 7653 num++; 7654 } 7655 } else { 7656 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7657 entry)) 7658 num++; 7659 } 7660 } 7661 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7662 num * sizeof(struct scsi_report_supported_opcodes_descr); 7663 break; 7664 case RSO_OPTIONS_OC: 7665 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7666 ctl_set_invalid_field(/*ctsio*/ ctsio, 7667 /*sks_valid*/ 1, 7668 /*command*/ 1, 7669 /*field*/ 2, 7670 /*bit_valid*/ 1, 7671 /*bit*/ 2); 7672 ctl_done((union ctl_io *)ctsio); 7673 return (CTL_RETVAL_COMPLETE); 7674 } 7675 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7676 break; 7677 case RSO_OPTIONS_OC_SA: 7678 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7679 service_action >= 32) { 7680 ctl_set_invalid_field(/*ctsio*/ ctsio, 7681 /*sks_valid*/ 1, 7682 /*command*/ 1, 7683 /*field*/ 2, 7684 /*bit_valid*/ 1, 7685 /*bit*/ 2); 7686 ctl_done((union ctl_io *)ctsio); 7687 return (CTL_RETVAL_COMPLETE); 7688 } 7689 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7690 break; 7691 default: 7692 ctl_set_invalid_field(/*ctsio*/ ctsio, 7693 /*sks_valid*/ 1, 7694 /*command*/ 1, 7695 /*field*/ 2, 7696 /*bit_valid*/ 1, 7697 /*bit*/ 2); 7698 ctl_done((union ctl_io *)ctsio); 7699 return (CTL_RETVAL_COMPLETE); 7700 } 7701 7702 alloc_len = scsi_4btoul(cdb->length); 7703 7704 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7705 7706 ctsio->kern_sg_entries = 0; 7707 7708 if (total_len < alloc_len) { 7709 ctsio->residual = alloc_len - total_len; 7710 ctsio->kern_data_len = total_len; 7711 ctsio->kern_total_len = total_len; 7712 } else { 7713 ctsio->residual = 0; 7714 ctsio->kern_data_len = alloc_len; 7715 ctsio->kern_total_len = alloc_len; 7716 } 7717 ctsio->kern_data_resid = 0; 7718 ctsio->kern_rel_offset = 0; 7719 7720 switch (cdb->options & RSO_OPTIONS_MASK) { 7721 case RSO_OPTIONS_ALL: 7722 all = (struct scsi_report_supported_opcodes_all *) 7723 ctsio->kern_data_ptr; 7724 num = 0; 7725 for (i = 0; i < 256; i++) { 7726 entry = &ctl_cmd_table[i]; 7727 if (entry->flags & CTL_CMD_FLAG_SA5) { 7728 for (j = 0; j < 32; j++) { 7729 sentry = &((const struct ctl_cmd_entry *) 7730 entry->execute)[j]; 7731 if (!ctl_cmd_applicable( 7732 lun->be_lun->lun_type, sentry)) 7733 continue; 7734 descr = &all->descr[num++]; 7735 descr->opcode = i; 7736 scsi_ulto2b(j, descr->service_action); 7737 descr->flags = RSO_SERVACTV; 7738 scsi_ulto2b(sentry->length, 7739 descr->cdb_length); 7740 } 7741 } else { 7742 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7743 entry)) 7744 continue; 7745 descr = &all->descr[num++]; 7746 descr->opcode = i; 7747 scsi_ulto2b(0, descr->service_action); 7748 descr->flags = 0; 7749 scsi_ulto2b(entry->length, descr->cdb_length); 7750 } 7751 } 7752 scsi_ulto4b( 7753 num * sizeof(struct scsi_report_supported_opcodes_descr), 7754 all->length); 7755 break; 7756 case RSO_OPTIONS_OC: 7757 one = (struct scsi_report_supported_opcodes_one *) 7758 ctsio->kern_data_ptr; 7759 entry = &ctl_cmd_table[opcode]; 7760 goto fill_one; 7761 case RSO_OPTIONS_OC_SA: 7762 one = (struct scsi_report_supported_opcodes_one *) 7763 ctsio->kern_data_ptr; 7764 entry = &ctl_cmd_table[opcode]; 7765 entry = &((const struct ctl_cmd_entry *) 7766 entry->execute)[service_action]; 7767fill_one: 7768 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7769 one->support = 3; 7770 scsi_ulto2b(entry->length, one->cdb_length); 7771 one->cdb_usage[0] = opcode; 7772 memcpy(&one->cdb_usage[1], entry->usage, 7773 entry->length - 1); 7774 } else 7775 one->support = 1; 7776 break; 7777 } 7778 7779 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7780 ctsio->be_move_done = ctl_config_move_done; 7781 7782 ctl_datamove((union ctl_io *)ctsio); 7783 return(retval); 7784} 7785 7786int 7787ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7788{ 7789 struct ctl_lun *lun; 7790 struct scsi_report_supported_tmf *cdb; 7791 struct scsi_report_supported_tmf_data *data; 7792 int retval; 7793 int alloc_len, total_len; 7794 7795 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7796 7797 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7798 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7799 7800 retval = CTL_RETVAL_COMPLETE; 7801 7802 total_len = sizeof(struct scsi_report_supported_tmf_data); 7803 alloc_len = scsi_4btoul(cdb->length); 7804 7805 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7806 7807 ctsio->kern_sg_entries = 0; 7808 7809 if (total_len < alloc_len) { 7810 ctsio->residual = alloc_len - total_len; 7811 ctsio->kern_data_len = total_len; 7812 ctsio->kern_total_len = total_len; 7813 } else { 7814 ctsio->residual = 0; 7815 ctsio->kern_data_len = alloc_len; 7816 ctsio->kern_total_len = alloc_len; 7817 } 7818 ctsio->kern_data_resid = 0; 7819 ctsio->kern_rel_offset = 0; 7820 7821 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7822 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7823 data->byte2 |= RST_ITNRS; 7824 7825 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7826 ctsio->be_move_done = ctl_config_move_done; 7827 7828 ctl_datamove((union ctl_io *)ctsio); 7829 return (retval); 7830} 7831 7832int 7833ctl_report_timestamp(struct ctl_scsiio *ctsio) 7834{ 7835 struct ctl_lun *lun; 7836 struct scsi_report_timestamp *cdb; 7837 struct scsi_report_timestamp_data *data; 7838 struct timeval tv; 7839 int64_t timestamp; 7840 int retval; 7841 int alloc_len, total_len; 7842 7843 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7844 7845 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7846 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7847 7848 retval = CTL_RETVAL_COMPLETE; 7849 7850 total_len = sizeof(struct scsi_report_timestamp_data); 7851 alloc_len = scsi_4btoul(cdb->length); 7852 7853 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7854 7855 ctsio->kern_sg_entries = 0; 7856 7857 if (total_len < alloc_len) { 7858 ctsio->residual = alloc_len - total_len; 7859 ctsio->kern_data_len = total_len; 7860 ctsio->kern_total_len = total_len; 7861 } else { 7862 ctsio->residual = 0; 7863 ctsio->kern_data_len = alloc_len; 7864 ctsio->kern_total_len = alloc_len; 7865 } 7866 ctsio->kern_data_resid = 0; 7867 ctsio->kern_rel_offset = 0; 7868 7869 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7870 scsi_ulto2b(sizeof(*data) - 2, data->length); 7871 data->origin = RTS_ORIG_OUTSIDE; 7872 getmicrotime(&tv); 7873 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7874 scsi_ulto4b(timestamp >> 16, data->timestamp); 7875 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7876 7877 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7878 ctsio->be_move_done = ctl_config_move_done; 7879 7880 ctl_datamove((union ctl_io *)ctsio); 7881 return (retval); 7882} 7883 7884int 7885ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7886{ 7887 struct scsi_per_res_in *cdb; 7888 int alloc_len, total_len = 0; 7889 /* struct scsi_per_res_in_rsrv in_data; */ 7890 struct ctl_lun *lun; 7891 struct ctl_softc *softc; 7892 7893 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7894 7895 softc = control_softc; 7896 7897 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7898 7899 alloc_len = scsi_2btoul(cdb->length); 7900 7901 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7902 7903retry: 7904 mtx_lock(&lun->lun_lock); 7905 switch (cdb->action) { 7906 case SPRI_RK: /* read keys */ 7907 total_len = sizeof(struct scsi_per_res_in_keys) + 7908 lun->pr_key_count * 7909 sizeof(struct scsi_per_res_key); 7910 break; 7911 case SPRI_RR: /* read reservation */ 7912 if (lun->flags & CTL_LUN_PR_RESERVED) 7913 total_len = sizeof(struct scsi_per_res_in_rsrv); 7914 else 7915 total_len = sizeof(struct scsi_per_res_in_header); 7916 break; 7917 case SPRI_RC: /* report capabilities */ 7918 total_len = sizeof(struct scsi_per_res_cap); 7919 break; 7920 case SPRI_RS: /* read full status */ 7921 total_len = sizeof(struct scsi_per_res_in_header) + 7922 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7923 lun->pr_key_count; 7924 break; 7925 default: 7926 panic("Invalid PR type %x", cdb->action); 7927 } 7928 mtx_unlock(&lun->lun_lock); 7929 7930 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7931 7932 if (total_len < alloc_len) { 7933 ctsio->residual = alloc_len - total_len; 7934 ctsio->kern_data_len = total_len; 7935 ctsio->kern_total_len = total_len; 7936 } else { 7937 ctsio->residual = 0; 7938 ctsio->kern_data_len = alloc_len; 7939 ctsio->kern_total_len = alloc_len; 7940 } 7941 7942 ctsio->kern_data_resid = 0; 7943 ctsio->kern_rel_offset = 0; 7944 ctsio->kern_sg_entries = 0; 7945 7946 mtx_lock(&lun->lun_lock); 7947 switch (cdb->action) { 7948 case SPRI_RK: { // read keys 7949 struct scsi_per_res_in_keys *res_keys; 7950 int i, key_count; 7951 7952 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7953 7954 /* 7955 * We had to drop the lock to allocate our buffer, which 7956 * leaves time for someone to come in with another 7957 * persistent reservation. (That is unlikely, though, 7958 * since this should be the only persistent reservation 7959 * command active right now.) 7960 */ 7961 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7962 (lun->pr_key_count * 7963 sizeof(struct scsi_per_res_key)))){ 7964 mtx_unlock(&lun->lun_lock); 7965 free(ctsio->kern_data_ptr, M_CTL); 7966 printf("%s: reservation length changed, retrying\n", 7967 __func__); 7968 goto retry; 7969 } 7970 7971 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7972 7973 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7974 lun->pr_key_count, res_keys->header.length); 7975 7976 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7977 if (lun->pr_keys[i] == 0) 7978 continue; 7979 7980 /* 7981 * We used lun->pr_key_count to calculate the 7982 * size to allocate. If it turns out the number of 7983 * initiators with the registered flag set is 7984 * larger than that (i.e. they haven't been kept in 7985 * sync), we've got a problem. 7986 */ 7987 if (key_count >= lun->pr_key_count) { 7988#ifdef NEEDTOPORT 7989 csevent_log(CSC_CTL | CSC_SHELF_SW | 7990 CTL_PR_ERROR, 7991 csevent_LogType_Fault, 7992 csevent_AlertLevel_Yellow, 7993 csevent_FRU_ShelfController, 7994 csevent_FRU_Firmware, 7995 csevent_FRU_Unknown, 7996 "registered keys %d >= key " 7997 "count %d", key_count, 7998 lun->pr_key_count); 7999#endif 8000 key_count++; 8001 continue; 8002 } 8003 scsi_u64to8b(lun->pr_keys[i], 8004 res_keys->keys[key_count].key); 8005 key_count++; 8006 } 8007 break; 8008 } 8009 case SPRI_RR: { // read reservation 8010 struct scsi_per_res_in_rsrv *res; 8011 int tmp_len, header_only; 8012 8013 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 8014 8015 scsi_ulto4b(lun->PRGeneration, res->header.generation); 8016 8017 if (lun->flags & CTL_LUN_PR_RESERVED) 8018 { 8019 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 8020 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 8021 res->header.length); 8022 header_only = 0; 8023 } else { 8024 tmp_len = sizeof(struct scsi_per_res_in_header); 8025 scsi_ulto4b(0, res->header.length); 8026 header_only = 1; 8027 } 8028 8029 /* 8030 * We had to drop the lock to allocate our buffer, which 8031 * leaves time for someone to come in with another 8032 * persistent reservation. (That is unlikely, though, 8033 * since this should be the only persistent reservation 8034 * command active right now.) 8035 */ 8036 if (tmp_len != total_len) { 8037 mtx_unlock(&lun->lun_lock); 8038 free(ctsio->kern_data_ptr, M_CTL); 8039 printf("%s: reservation status changed, retrying\n", 8040 __func__); 8041 goto retry; 8042 } 8043 8044 /* 8045 * No reservation held, so we're done. 8046 */ 8047 if (header_only != 0) 8048 break; 8049 8050 /* 8051 * If the registration is an All Registrants type, the key 8052 * is 0, since it doesn't really matter. 8053 */ 8054 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8055 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 8056 res->data.reservation); 8057 } 8058 res->data.scopetype = lun->res_type; 8059 break; 8060 } 8061 case SPRI_RC: //report capabilities 8062 { 8063 struct scsi_per_res_cap *res_cap; 8064 uint16_t type_mask; 8065 8066 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 8067 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 8068 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 8069 type_mask = SPRI_TM_WR_EX_AR | 8070 SPRI_TM_EX_AC_RO | 8071 SPRI_TM_WR_EX_RO | 8072 SPRI_TM_EX_AC | 8073 SPRI_TM_WR_EX | 8074 SPRI_TM_EX_AC_AR; 8075 scsi_ulto2b(type_mask, res_cap->type_mask); 8076 break; 8077 } 8078 case SPRI_RS: { // read full status 8079 struct scsi_per_res_in_full *res_status; 8080 struct scsi_per_res_in_full_desc *res_desc; 8081 struct ctl_port *port; 8082 int i, len; 8083 8084 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 8085 8086 /* 8087 * We had to drop the lock to allocate our buffer, which 8088 * leaves time for someone to come in with another 8089 * persistent reservation. (That is unlikely, though, 8090 * since this should be the only persistent reservation 8091 * command active right now.) 8092 */ 8093 if (total_len < (sizeof(struct scsi_per_res_in_header) + 8094 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 8095 lun->pr_key_count)){ 8096 mtx_unlock(&lun->lun_lock); 8097 free(ctsio->kern_data_ptr, M_CTL); 8098 printf("%s: reservation length changed, retrying\n", 8099 __func__); 8100 goto retry; 8101 } 8102 8103 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 8104 8105 res_desc = &res_status->desc[0]; 8106 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 8107 if (lun->pr_keys[i] == 0) 8108 continue; 8109 8110 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 8111 if ((lun->flags & CTL_LUN_PR_RESERVED) && 8112 (lun->pr_res_idx == i || 8113 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 8114 res_desc->flags = SPRI_FULL_R_HOLDER; 8115 res_desc->scopetype = lun->res_type; 8116 } 8117 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 8118 res_desc->rel_trgt_port_id); 8119 len = 0; 8120 port = softc->ctl_ports[ 8121 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 8122 if (port != NULL) 8123 len = ctl_create_iid(port, 8124 i % CTL_MAX_INIT_PER_PORT, 8125 res_desc->transport_id); 8126 scsi_ulto4b(len, res_desc->additional_length); 8127 res_desc = (struct scsi_per_res_in_full_desc *) 8128 &res_desc->transport_id[len]; 8129 } 8130 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 8131 res_status->header.length); 8132 break; 8133 } 8134 default: 8135 /* 8136 * This is a bug, because we just checked for this above, 8137 * and should have returned an error. 8138 */ 8139 panic("Invalid PR type %x", cdb->action); 8140 break; /* NOTREACHED */ 8141 } 8142 mtx_unlock(&lun->lun_lock); 8143 8144 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8145 ctsio->be_move_done = ctl_config_move_done; 8146 8147 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8148 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8149 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8150 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8151 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8152 8153 ctl_datamove((union ctl_io *)ctsio); 8154 8155 return (CTL_RETVAL_COMPLETE); 8156} 8157 8158/* 8159 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8160 * it should return. 8161 */ 8162static int 8163ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8164 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8165 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8166 struct scsi_per_res_out_parms* param) 8167{ 8168 union ctl_ha_msg persis_io; 8169 int retval, i; 8170 int isc_retval; 8171 8172 retval = 0; 8173 8174 mtx_lock(&lun->lun_lock); 8175 if (sa_res_key == 0) { 8176 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8177 /* validate scope and type */ 8178 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8179 SPR_LU_SCOPE) { 8180 mtx_unlock(&lun->lun_lock); 8181 ctl_set_invalid_field(/*ctsio*/ ctsio, 8182 /*sks_valid*/ 1, 8183 /*command*/ 1, 8184 /*field*/ 2, 8185 /*bit_valid*/ 1, 8186 /*bit*/ 4); 8187 ctl_done((union ctl_io *)ctsio); 8188 return (1); 8189 } 8190 8191 if (type>8 || type==2 || type==4 || type==0) { 8192 mtx_unlock(&lun->lun_lock); 8193 ctl_set_invalid_field(/*ctsio*/ ctsio, 8194 /*sks_valid*/ 1, 8195 /*command*/ 1, 8196 /*field*/ 2, 8197 /*bit_valid*/ 1, 8198 /*bit*/ 0); 8199 ctl_done((union ctl_io *)ctsio); 8200 return (1); 8201 } 8202 8203 /* 8204 * Unregister everybody else and build UA for 8205 * them 8206 */ 8207 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8208 if (i == residx || lun->pr_keys[i] == 0) 8209 continue; 8210 8211 if (!persis_offset 8212 && i <CTL_MAX_INITIATORS) 8213 lun->pending_ua[i] |= 8214 CTL_UA_REG_PREEMPT; 8215 else if (persis_offset 8216 && i >= persis_offset) 8217 lun->pending_ua[i-persis_offset] |= 8218 CTL_UA_REG_PREEMPT; 8219 lun->pr_keys[i] = 0; 8220 } 8221 lun->pr_key_count = 1; 8222 lun->res_type = type; 8223 if (lun->res_type != SPR_TYPE_WR_EX_AR 8224 && lun->res_type != SPR_TYPE_EX_AC_AR) 8225 lun->pr_res_idx = residx; 8226 8227 /* send msg to other side */ 8228 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8229 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8230 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8231 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8232 persis_io.pr.pr_info.res_type = type; 8233 memcpy(persis_io.pr.pr_info.sa_res_key, 8234 param->serv_act_res_key, 8235 sizeof(param->serv_act_res_key)); 8236 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8237 &persis_io, sizeof(persis_io), 0)) > 8238 CTL_HA_STATUS_SUCCESS) { 8239 printf("CTL:Persis Out error returned " 8240 "from ctl_ha_msg_send %d\n", 8241 isc_retval); 8242 } 8243 } else { 8244 /* not all registrants */ 8245 mtx_unlock(&lun->lun_lock); 8246 free(ctsio->kern_data_ptr, M_CTL); 8247 ctl_set_invalid_field(ctsio, 8248 /*sks_valid*/ 1, 8249 /*command*/ 0, 8250 /*field*/ 8, 8251 /*bit_valid*/ 0, 8252 /*bit*/ 0); 8253 ctl_done((union ctl_io *)ctsio); 8254 return (1); 8255 } 8256 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8257 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8258 int found = 0; 8259 8260 if (res_key == sa_res_key) { 8261 /* special case */ 8262 /* 8263 * The spec implies this is not good but doesn't 8264 * say what to do. There are two choices either 8265 * generate a res conflict or check condition 8266 * with illegal field in parameter data. Since 8267 * that is what is done when the sa_res_key is 8268 * zero I'll take that approach since this has 8269 * to do with the sa_res_key. 8270 */ 8271 mtx_unlock(&lun->lun_lock); 8272 free(ctsio->kern_data_ptr, M_CTL); 8273 ctl_set_invalid_field(ctsio, 8274 /*sks_valid*/ 1, 8275 /*command*/ 0, 8276 /*field*/ 8, 8277 /*bit_valid*/ 0, 8278 /*bit*/ 0); 8279 ctl_done((union ctl_io *)ctsio); 8280 return (1); 8281 } 8282 8283 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8284 if (lun->pr_keys[i] != sa_res_key) 8285 continue; 8286 8287 found = 1; 8288 lun->pr_keys[i] = 0; 8289 lun->pr_key_count--; 8290 8291 if (!persis_offset && i < CTL_MAX_INITIATORS) 8292 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8293 else if (persis_offset && i >= persis_offset) 8294 lun->pending_ua[i-persis_offset] |= 8295 CTL_UA_REG_PREEMPT; 8296 } 8297 if (!found) { 8298 mtx_unlock(&lun->lun_lock); 8299 free(ctsio->kern_data_ptr, M_CTL); 8300 ctl_set_reservation_conflict(ctsio); 8301 ctl_done((union ctl_io *)ctsio); 8302 return (CTL_RETVAL_COMPLETE); 8303 } 8304 /* send msg to other side */ 8305 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8306 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8307 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8308 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8309 persis_io.pr.pr_info.res_type = type; 8310 memcpy(persis_io.pr.pr_info.sa_res_key, 8311 param->serv_act_res_key, 8312 sizeof(param->serv_act_res_key)); 8313 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8314 &persis_io, sizeof(persis_io), 0)) > 8315 CTL_HA_STATUS_SUCCESS) { 8316 printf("CTL:Persis Out error returned from " 8317 "ctl_ha_msg_send %d\n", isc_retval); 8318 } 8319 } else { 8320 /* Reserved but not all registrants */ 8321 /* sa_res_key is res holder */ 8322 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8323 /* validate scope and type */ 8324 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8325 SPR_LU_SCOPE) { 8326 mtx_unlock(&lun->lun_lock); 8327 ctl_set_invalid_field(/*ctsio*/ ctsio, 8328 /*sks_valid*/ 1, 8329 /*command*/ 1, 8330 /*field*/ 2, 8331 /*bit_valid*/ 1, 8332 /*bit*/ 4); 8333 ctl_done((union ctl_io *)ctsio); 8334 return (1); 8335 } 8336 8337 if (type>8 || type==2 || type==4 || type==0) { 8338 mtx_unlock(&lun->lun_lock); 8339 ctl_set_invalid_field(/*ctsio*/ ctsio, 8340 /*sks_valid*/ 1, 8341 /*command*/ 1, 8342 /*field*/ 2, 8343 /*bit_valid*/ 1, 8344 /*bit*/ 0); 8345 ctl_done((union ctl_io *)ctsio); 8346 return (1); 8347 } 8348 8349 /* 8350 * Do the following: 8351 * if sa_res_key != res_key remove all 8352 * registrants w/sa_res_key and generate UA 8353 * for these registrants(Registrations 8354 * Preempted) if it wasn't an exclusive 8355 * reservation generate UA(Reservations 8356 * Preempted) for all other registered nexuses 8357 * if the type has changed. Establish the new 8358 * reservation and holder. If res_key and 8359 * sa_res_key are the same do the above 8360 * except don't unregister the res holder. 8361 */ 8362 8363 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8364 if (i == residx || lun->pr_keys[i] == 0) 8365 continue; 8366 8367 if (sa_res_key == lun->pr_keys[i]) { 8368 lun->pr_keys[i] = 0; 8369 lun->pr_key_count--; 8370 8371 if (!persis_offset 8372 && i < CTL_MAX_INITIATORS) 8373 lun->pending_ua[i] |= 8374 CTL_UA_REG_PREEMPT; 8375 else if (persis_offset 8376 && i >= persis_offset) 8377 lun->pending_ua[i-persis_offset] |= 8378 CTL_UA_REG_PREEMPT; 8379 } else if (type != lun->res_type 8380 && (lun->res_type == SPR_TYPE_WR_EX_RO 8381 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8382 if (!persis_offset 8383 && i < CTL_MAX_INITIATORS) 8384 lun->pending_ua[i] |= 8385 CTL_UA_RES_RELEASE; 8386 else if (persis_offset 8387 && i >= persis_offset) 8388 lun->pending_ua[ 8389 i-persis_offset] |= 8390 CTL_UA_RES_RELEASE; 8391 } 8392 } 8393 lun->res_type = type; 8394 if (lun->res_type != SPR_TYPE_WR_EX_AR 8395 && lun->res_type != SPR_TYPE_EX_AC_AR) 8396 lun->pr_res_idx = residx; 8397 else 8398 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8399 8400 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8401 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8402 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8403 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8404 persis_io.pr.pr_info.res_type = type; 8405 memcpy(persis_io.pr.pr_info.sa_res_key, 8406 param->serv_act_res_key, 8407 sizeof(param->serv_act_res_key)); 8408 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8409 &persis_io, sizeof(persis_io), 0)) > 8410 CTL_HA_STATUS_SUCCESS) { 8411 printf("CTL:Persis Out error returned " 8412 "from ctl_ha_msg_send %d\n", 8413 isc_retval); 8414 } 8415 } else { 8416 /* 8417 * sa_res_key is not the res holder just 8418 * remove registrants 8419 */ 8420 int found=0; 8421 8422 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8423 if (sa_res_key != lun->pr_keys[i]) 8424 continue; 8425 8426 found = 1; 8427 lun->pr_keys[i] = 0; 8428 lun->pr_key_count--; 8429 8430 if (!persis_offset 8431 && i < CTL_MAX_INITIATORS) 8432 lun->pending_ua[i] |= 8433 CTL_UA_REG_PREEMPT; 8434 else if (persis_offset 8435 && i >= persis_offset) 8436 lun->pending_ua[i-persis_offset] |= 8437 CTL_UA_REG_PREEMPT; 8438 } 8439 8440 if (!found) { 8441 mtx_unlock(&lun->lun_lock); 8442 free(ctsio->kern_data_ptr, M_CTL); 8443 ctl_set_reservation_conflict(ctsio); 8444 ctl_done((union ctl_io *)ctsio); 8445 return (1); 8446 } 8447 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8448 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8449 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8450 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8451 persis_io.pr.pr_info.res_type = type; 8452 memcpy(persis_io.pr.pr_info.sa_res_key, 8453 param->serv_act_res_key, 8454 sizeof(param->serv_act_res_key)); 8455 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8456 &persis_io, sizeof(persis_io), 0)) > 8457 CTL_HA_STATUS_SUCCESS) { 8458 printf("CTL:Persis Out error returned " 8459 "from ctl_ha_msg_send %d\n", 8460 isc_retval); 8461 } 8462 } 8463 } 8464 8465 lun->PRGeneration++; 8466 mtx_unlock(&lun->lun_lock); 8467 8468 return (retval); 8469} 8470 8471static void 8472ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8473{ 8474 uint64_t sa_res_key; 8475 int i; 8476 8477 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8478 8479 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8480 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8481 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8482 if (sa_res_key == 0) { 8483 /* 8484 * Unregister everybody else and build UA for 8485 * them 8486 */ 8487 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8488 if (i == msg->pr.pr_info.residx || 8489 lun->pr_keys[i] == 0) 8490 continue; 8491 8492 if (!persis_offset 8493 && i < CTL_MAX_INITIATORS) 8494 lun->pending_ua[i] |= 8495 CTL_UA_REG_PREEMPT; 8496 else if (persis_offset && i >= persis_offset) 8497 lun->pending_ua[i - persis_offset] |= 8498 CTL_UA_REG_PREEMPT; 8499 lun->pr_keys[i] = 0; 8500 } 8501 8502 lun->pr_key_count = 1; 8503 lun->res_type = msg->pr.pr_info.res_type; 8504 if (lun->res_type != SPR_TYPE_WR_EX_AR 8505 && lun->res_type != SPR_TYPE_EX_AC_AR) 8506 lun->pr_res_idx = msg->pr.pr_info.residx; 8507 } else { 8508 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8509 if (sa_res_key == lun->pr_keys[i]) 8510 continue; 8511 8512 lun->pr_keys[i] = 0; 8513 lun->pr_key_count--; 8514 8515 if (!persis_offset 8516 && i < persis_offset) 8517 lun->pending_ua[i] |= 8518 CTL_UA_REG_PREEMPT; 8519 else if (persis_offset 8520 && i >= persis_offset) 8521 lun->pending_ua[i - persis_offset] |= 8522 CTL_UA_REG_PREEMPT; 8523 } 8524 } 8525 } else { 8526 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8527 if (i == msg->pr.pr_info.residx || 8528 lun->pr_keys[i] == 0) 8529 continue; 8530 8531 if (sa_res_key == lun->pr_keys[i]) { 8532 lun->pr_keys[i] = 0; 8533 lun->pr_key_count--; 8534 if (!persis_offset 8535 && i < CTL_MAX_INITIATORS) 8536 lun->pending_ua[i] |= 8537 CTL_UA_REG_PREEMPT; 8538 else if (persis_offset 8539 && i >= persis_offset) 8540 lun->pending_ua[i - persis_offset] |= 8541 CTL_UA_REG_PREEMPT; 8542 } else if (msg->pr.pr_info.res_type != lun->res_type 8543 && (lun->res_type == SPR_TYPE_WR_EX_RO 8544 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8545 if (!persis_offset 8546 && i < persis_offset) 8547 lun->pending_ua[i] |= 8548 CTL_UA_RES_RELEASE; 8549 else if (persis_offset 8550 && i >= persis_offset) 8551 lun->pending_ua[i - persis_offset] |= 8552 CTL_UA_RES_RELEASE; 8553 } 8554 } 8555 lun->res_type = msg->pr.pr_info.res_type; 8556 if (lun->res_type != SPR_TYPE_WR_EX_AR 8557 && lun->res_type != SPR_TYPE_EX_AC_AR) 8558 lun->pr_res_idx = msg->pr.pr_info.residx; 8559 else 8560 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8561 } 8562 lun->PRGeneration++; 8563 8564} 8565 8566 8567int 8568ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8569{ 8570 int retval; 8571 int isc_retval; 8572 u_int32_t param_len; 8573 struct scsi_per_res_out *cdb; 8574 struct ctl_lun *lun; 8575 struct scsi_per_res_out_parms* param; 8576 struct ctl_softc *softc; 8577 uint32_t residx; 8578 uint64_t res_key, sa_res_key; 8579 uint8_t type; 8580 union ctl_ha_msg persis_io; 8581 int i; 8582 8583 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8584 8585 retval = CTL_RETVAL_COMPLETE; 8586 8587 softc = control_softc; 8588 8589 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8590 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8591 8592 /* 8593 * We only support whole-LUN scope. The scope & type are ignored for 8594 * register, register and ignore existing key and clear. 8595 * We sometimes ignore scope and type on preempts too!! 8596 * Verify reservation type here as well. 8597 */ 8598 type = cdb->scope_type & SPR_TYPE_MASK; 8599 if ((cdb->action == SPRO_RESERVE) 8600 || (cdb->action == SPRO_RELEASE)) { 8601 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8602 ctl_set_invalid_field(/*ctsio*/ ctsio, 8603 /*sks_valid*/ 1, 8604 /*command*/ 1, 8605 /*field*/ 2, 8606 /*bit_valid*/ 1, 8607 /*bit*/ 4); 8608 ctl_done((union ctl_io *)ctsio); 8609 return (CTL_RETVAL_COMPLETE); 8610 } 8611 8612 if (type>8 || type==2 || type==4 || type==0) { 8613 ctl_set_invalid_field(/*ctsio*/ ctsio, 8614 /*sks_valid*/ 1, 8615 /*command*/ 1, 8616 /*field*/ 2, 8617 /*bit_valid*/ 1, 8618 /*bit*/ 0); 8619 ctl_done((union ctl_io *)ctsio); 8620 return (CTL_RETVAL_COMPLETE); 8621 } 8622 } 8623 8624 param_len = scsi_4btoul(cdb->length); 8625 8626 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8627 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8628 ctsio->kern_data_len = param_len; 8629 ctsio->kern_total_len = param_len; 8630 ctsio->kern_data_resid = 0; 8631 ctsio->kern_rel_offset = 0; 8632 ctsio->kern_sg_entries = 0; 8633 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8634 ctsio->be_move_done = ctl_config_move_done; 8635 ctl_datamove((union ctl_io *)ctsio); 8636 8637 return (CTL_RETVAL_COMPLETE); 8638 } 8639 8640 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8641 8642 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8643 res_key = scsi_8btou64(param->res_key.key); 8644 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8645 8646 /* 8647 * Validate the reservation key here except for SPRO_REG_IGNO 8648 * This must be done for all other service actions 8649 */ 8650 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8651 mtx_lock(&lun->lun_lock); 8652 if (lun->pr_keys[residx] != 0) { 8653 if (res_key != lun->pr_keys[residx]) { 8654 /* 8655 * The current key passed in doesn't match 8656 * the one the initiator previously 8657 * registered. 8658 */ 8659 mtx_unlock(&lun->lun_lock); 8660 free(ctsio->kern_data_ptr, M_CTL); 8661 ctl_set_reservation_conflict(ctsio); 8662 ctl_done((union ctl_io *)ctsio); 8663 return (CTL_RETVAL_COMPLETE); 8664 } 8665 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8666 /* 8667 * We are not registered 8668 */ 8669 mtx_unlock(&lun->lun_lock); 8670 free(ctsio->kern_data_ptr, M_CTL); 8671 ctl_set_reservation_conflict(ctsio); 8672 ctl_done((union ctl_io *)ctsio); 8673 return (CTL_RETVAL_COMPLETE); 8674 } else if (res_key != 0) { 8675 /* 8676 * We are not registered and trying to register but 8677 * the register key isn't zero. 8678 */ 8679 mtx_unlock(&lun->lun_lock); 8680 free(ctsio->kern_data_ptr, M_CTL); 8681 ctl_set_reservation_conflict(ctsio); 8682 ctl_done((union ctl_io *)ctsio); 8683 return (CTL_RETVAL_COMPLETE); 8684 } 8685 mtx_unlock(&lun->lun_lock); 8686 } 8687 8688 switch (cdb->action & SPRO_ACTION_MASK) { 8689 case SPRO_REGISTER: 8690 case SPRO_REG_IGNO: { 8691 8692#if 0 8693 printf("Registration received\n"); 8694#endif 8695 8696 /* 8697 * We don't support any of these options, as we report in 8698 * the read capabilities request (see 8699 * ctl_persistent_reserve_in(), above). 8700 */ 8701 if ((param->flags & SPR_SPEC_I_PT) 8702 || (param->flags & SPR_ALL_TG_PT) 8703 || (param->flags & SPR_APTPL)) { 8704 int bit_ptr; 8705 8706 if (param->flags & SPR_APTPL) 8707 bit_ptr = 0; 8708 else if (param->flags & SPR_ALL_TG_PT) 8709 bit_ptr = 2; 8710 else /* SPR_SPEC_I_PT */ 8711 bit_ptr = 3; 8712 8713 free(ctsio->kern_data_ptr, M_CTL); 8714 ctl_set_invalid_field(ctsio, 8715 /*sks_valid*/ 1, 8716 /*command*/ 0, 8717 /*field*/ 20, 8718 /*bit_valid*/ 1, 8719 /*bit*/ bit_ptr); 8720 ctl_done((union ctl_io *)ctsio); 8721 return (CTL_RETVAL_COMPLETE); 8722 } 8723 8724 mtx_lock(&lun->lun_lock); 8725 8726 /* 8727 * The initiator wants to clear the 8728 * key/unregister. 8729 */ 8730 if (sa_res_key == 0) { 8731 if ((res_key == 0 8732 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8733 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8734 && lun->pr_keys[residx] == 0)) { 8735 mtx_unlock(&lun->lun_lock); 8736 goto done; 8737 } 8738 8739 lun->pr_keys[residx] = 0; 8740 lun->pr_key_count--; 8741 8742 if (residx == lun->pr_res_idx) { 8743 lun->flags &= ~CTL_LUN_PR_RESERVED; 8744 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8745 8746 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8747 || lun->res_type == SPR_TYPE_EX_AC_RO) 8748 && lun->pr_key_count) { 8749 /* 8750 * If the reservation is a registrants 8751 * only type we need to generate a UA 8752 * for other registered inits. The 8753 * sense code should be RESERVATIONS 8754 * RELEASED 8755 */ 8756 8757 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8758 if (lun->pr_keys[ 8759 i + persis_offset] == 0) 8760 continue; 8761 lun->pending_ua[i] |= 8762 CTL_UA_RES_RELEASE; 8763 } 8764 } 8765 lun->res_type = 0; 8766 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8767 if (lun->pr_key_count==0) { 8768 lun->flags &= ~CTL_LUN_PR_RESERVED; 8769 lun->res_type = 0; 8770 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8771 } 8772 } 8773 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8774 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8775 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8776 persis_io.pr.pr_info.residx = residx; 8777 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8778 &persis_io, sizeof(persis_io), 0 )) > 8779 CTL_HA_STATUS_SUCCESS) { 8780 printf("CTL:Persis Out error returned from " 8781 "ctl_ha_msg_send %d\n", isc_retval); 8782 } 8783 } else /* sa_res_key != 0 */ { 8784 8785 /* 8786 * If we aren't registered currently then increment 8787 * the key count and set the registered flag. 8788 */ 8789 if (lun->pr_keys[residx] == 0) 8790 lun->pr_key_count++; 8791 lun->pr_keys[residx] = sa_res_key; 8792 8793 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8794 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8795 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8796 persis_io.pr.pr_info.residx = residx; 8797 memcpy(persis_io.pr.pr_info.sa_res_key, 8798 param->serv_act_res_key, 8799 sizeof(param->serv_act_res_key)); 8800 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8801 &persis_io, sizeof(persis_io), 0)) > 8802 CTL_HA_STATUS_SUCCESS) { 8803 printf("CTL:Persis Out error returned from " 8804 "ctl_ha_msg_send %d\n", isc_retval); 8805 } 8806 } 8807 lun->PRGeneration++; 8808 mtx_unlock(&lun->lun_lock); 8809 8810 break; 8811 } 8812 case SPRO_RESERVE: 8813#if 0 8814 printf("Reserve executed type %d\n", type); 8815#endif 8816 mtx_lock(&lun->lun_lock); 8817 if (lun->flags & CTL_LUN_PR_RESERVED) { 8818 /* 8819 * if this isn't the reservation holder and it's 8820 * not a "all registrants" type or if the type is 8821 * different then we have a conflict 8822 */ 8823 if ((lun->pr_res_idx != residx 8824 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8825 || lun->res_type != type) { 8826 mtx_unlock(&lun->lun_lock); 8827 free(ctsio->kern_data_ptr, M_CTL); 8828 ctl_set_reservation_conflict(ctsio); 8829 ctl_done((union ctl_io *)ctsio); 8830 return (CTL_RETVAL_COMPLETE); 8831 } 8832 mtx_unlock(&lun->lun_lock); 8833 } else /* create a reservation */ { 8834 /* 8835 * If it's not an "all registrants" type record 8836 * reservation holder 8837 */ 8838 if (type != SPR_TYPE_WR_EX_AR 8839 && type != SPR_TYPE_EX_AC_AR) 8840 lun->pr_res_idx = residx; /* Res holder */ 8841 else 8842 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8843 8844 lun->flags |= CTL_LUN_PR_RESERVED; 8845 lun->res_type = type; 8846 8847 mtx_unlock(&lun->lun_lock); 8848 8849 /* send msg to other side */ 8850 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8851 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8852 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8853 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8854 persis_io.pr.pr_info.res_type = type; 8855 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8856 &persis_io, sizeof(persis_io), 0)) > 8857 CTL_HA_STATUS_SUCCESS) { 8858 printf("CTL:Persis Out error returned from " 8859 "ctl_ha_msg_send %d\n", isc_retval); 8860 } 8861 } 8862 break; 8863 8864 case SPRO_RELEASE: 8865 mtx_lock(&lun->lun_lock); 8866 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8867 /* No reservation exists return good status */ 8868 mtx_unlock(&lun->lun_lock); 8869 goto done; 8870 } 8871 /* 8872 * Is this nexus a reservation holder? 8873 */ 8874 if (lun->pr_res_idx != residx 8875 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8876 /* 8877 * not a res holder return good status but 8878 * do nothing 8879 */ 8880 mtx_unlock(&lun->lun_lock); 8881 goto done; 8882 } 8883 8884 if (lun->res_type != type) { 8885 mtx_unlock(&lun->lun_lock); 8886 free(ctsio->kern_data_ptr, M_CTL); 8887 ctl_set_illegal_pr_release(ctsio); 8888 ctl_done((union ctl_io *)ctsio); 8889 return (CTL_RETVAL_COMPLETE); 8890 } 8891 8892 /* okay to release */ 8893 lun->flags &= ~CTL_LUN_PR_RESERVED; 8894 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8895 lun->res_type = 0; 8896 8897 /* 8898 * if this isn't an exclusive access 8899 * res generate UA for all other 8900 * registrants. 8901 */ 8902 if (type != SPR_TYPE_EX_AC 8903 && type != SPR_TYPE_WR_EX) { 8904 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8905 if (i == residx || 8906 lun->pr_keys[i + persis_offset] == 0) 8907 continue; 8908 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8909 } 8910 } 8911 mtx_unlock(&lun->lun_lock); 8912 /* Send msg to other side */ 8913 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8914 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8915 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8916 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8917 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8918 printf("CTL:Persis Out error returned from " 8919 "ctl_ha_msg_send %d\n", isc_retval); 8920 } 8921 break; 8922 8923 case SPRO_CLEAR: 8924 /* send msg to other side */ 8925 8926 mtx_lock(&lun->lun_lock); 8927 lun->flags &= ~CTL_LUN_PR_RESERVED; 8928 lun->res_type = 0; 8929 lun->pr_key_count = 0; 8930 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8931 8932 lun->pr_keys[residx] = 0; 8933 8934 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8935 if (lun->pr_keys[i] != 0) { 8936 if (!persis_offset && i < CTL_MAX_INITIATORS) 8937 lun->pending_ua[i] |= 8938 CTL_UA_RES_PREEMPT; 8939 else if (persis_offset && i >= persis_offset) 8940 lun->pending_ua[i-persis_offset] |= 8941 CTL_UA_RES_PREEMPT; 8942 8943 lun->pr_keys[i] = 0; 8944 } 8945 lun->PRGeneration++; 8946 mtx_unlock(&lun->lun_lock); 8947 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8948 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8949 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8950 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8951 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8952 printf("CTL:Persis Out error returned from " 8953 "ctl_ha_msg_send %d\n", isc_retval); 8954 } 8955 break; 8956 8957 case SPRO_PREEMPT: { 8958 int nretval; 8959 8960 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8961 residx, ctsio, cdb, param); 8962 if (nretval != 0) 8963 return (CTL_RETVAL_COMPLETE); 8964 break; 8965 } 8966 default: 8967 panic("Invalid PR type %x", cdb->action); 8968 } 8969 8970done: 8971 free(ctsio->kern_data_ptr, M_CTL); 8972 ctl_set_success(ctsio); 8973 ctl_done((union ctl_io *)ctsio); 8974 8975 return (retval); 8976} 8977 8978/* 8979 * This routine is for handling a message from the other SC pertaining to 8980 * persistent reserve out. All the error checking will have been done 8981 * so only perorming the action need be done here to keep the two 8982 * in sync. 8983 */ 8984static void 8985ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8986{ 8987 struct ctl_lun *lun; 8988 struct ctl_softc *softc; 8989 int i; 8990 uint32_t targ_lun; 8991 8992 softc = control_softc; 8993 8994 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8995 lun = softc->ctl_luns[targ_lun]; 8996 mtx_lock(&lun->lun_lock); 8997 switch(msg->pr.pr_info.action) { 8998 case CTL_PR_REG_KEY: 8999 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 9000 lun->pr_key_count++; 9001 lun->pr_keys[msg->pr.pr_info.residx] = 9002 scsi_8btou64(msg->pr.pr_info.sa_res_key); 9003 lun->PRGeneration++; 9004 break; 9005 9006 case CTL_PR_UNREG_KEY: 9007 lun->pr_keys[msg->pr.pr_info.residx] = 0; 9008 lun->pr_key_count--; 9009 9010 /* XXX Need to see if the reservation has been released */ 9011 /* if so do we need to generate UA? */ 9012 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 9013 lun->flags &= ~CTL_LUN_PR_RESERVED; 9014 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9015 9016 if ((lun->res_type == SPR_TYPE_WR_EX_RO 9017 || lun->res_type == SPR_TYPE_EX_AC_RO) 9018 && lun->pr_key_count) { 9019 /* 9020 * If the reservation is a registrants 9021 * only type we need to generate a UA 9022 * for other registered inits. The 9023 * sense code should be RESERVATIONS 9024 * RELEASED 9025 */ 9026 9027 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 9028 if (lun->pr_keys[i+ 9029 persis_offset] == 0) 9030 continue; 9031 9032 lun->pending_ua[i] |= 9033 CTL_UA_RES_RELEASE; 9034 } 9035 } 9036 lun->res_type = 0; 9037 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 9038 if (lun->pr_key_count==0) { 9039 lun->flags &= ~CTL_LUN_PR_RESERVED; 9040 lun->res_type = 0; 9041 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9042 } 9043 } 9044 lun->PRGeneration++; 9045 break; 9046 9047 case CTL_PR_RESERVE: 9048 lun->flags |= CTL_LUN_PR_RESERVED; 9049 lun->res_type = msg->pr.pr_info.res_type; 9050 lun->pr_res_idx = msg->pr.pr_info.residx; 9051 9052 break; 9053 9054 case CTL_PR_RELEASE: 9055 /* 9056 * if this isn't an exclusive access res generate UA for all 9057 * other registrants. 9058 */ 9059 if (lun->res_type != SPR_TYPE_EX_AC 9060 && lun->res_type != SPR_TYPE_WR_EX) { 9061 for (i = 0; i < CTL_MAX_INITIATORS; i++) 9062 if (lun->pr_keys[i+persis_offset] != 0) 9063 lun->pending_ua[i] |= 9064 CTL_UA_RES_RELEASE; 9065 } 9066 9067 lun->flags &= ~CTL_LUN_PR_RESERVED; 9068 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9069 lun->res_type = 0; 9070 break; 9071 9072 case CTL_PR_PREEMPT: 9073 ctl_pro_preempt_other(lun, msg); 9074 break; 9075 case CTL_PR_CLEAR: 9076 lun->flags &= ~CTL_LUN_PR_RESERVED; 9077 lun->res_type = 0; 9078 lun->pr_key_count = 0; 9079 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9080 9081 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9082 if (lun->pr_keys[i] == 0) 9083 continue; 9084 if (!persis_offset 9085 && i < CTL_MAX_INITIATORS) 9086 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 9087 else if (persis_offset 9088 && i >= persis_offset) 9089 lun->pending_ua[i-persis_offset] |= 9090 CTL_UA_RES_PREEMPT; 9091 lun->pr_keys[i] = 0; 9092 } 9093 lun->PRGeneration++; 9094 break; 9095 } 9096 9097 mtx_unlock(&lun->lun_lock); 9098} 9099 9100int 9101ctl_read_write(struct ctl_scsiio *ctsio) 9102{ 9103 struct ctl_lun *lun; 9104 struct ctl_lba_len_flags *lbalen; 9105 uint64_t lba; 9106 uint32_t num_blocks; 9107 int flags, retval; 9108 int isread; 9109 9110 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9111 9112 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9113 9114 flags = 0; 9115 retval = CTL_RETVAL_COMPLETE; 9116 9117 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9118 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9119 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9120 uint32_t residx; 9121 9122 /* 9123 * XXX KDM need a lock here. 9124 */ 9125 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9126 if ((lun->res_type == SPR_TYPE_EX_AC 9127 && residx != lun->pr_res_idx) 9128 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9129 || lun->res_type == SPR_TYPE_EX_AC_AR) 9130 && lun->pr_keys[residx] == 0)) { 9131 ctl_set_reservation_conflict(ctsio); 9132 ctl_done((union ctl_io *)ctsio); 9133 return (CTL_RETVAL_COMPLETE); 9134 } 9135 } 9136 9137 switch (ctsio->cdb[0]) { 9138 case READ_6: 9139 case WRITE_6: { 9140 struct scsi_rw_6 *cdb; 9141 9142 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9143 9144 lba = scsi_3btoul(cdb->addr); 9145 /* only 5 bits are valid in the most significant address byte */ 9146 lba &= 0x1fffff; 9147 num_blocks = cdb->length; 9148 /* 9149 * This is correct according to SBC-2. 9150 */ 9151 if (num_blocks == 0) 9152 num_blocks = 256; 9153 break; 9154 } 9155 case READ_10: 9156 case WRITE_10: { 9157 struct scsi_rw_10 *cdb; 9158 9159 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9160 if (cdb->byte2 & SRW10_FUA) 9161 flags |= CTL_LLF_FUA; 9162 if (cdb->byte2 & SRW10_DPO) 9163 flags |= CTL_LLF_DPO; 9164 lba = scsi_4btoul(cdb->addr); 9165 num_blocks = scsi_2btoul(cdb->length); 9166 break; 9167 } 9168 case WRITE_VERIFY_10: { 9169 struct scsi_write_verify_10 *cdb; 9170 9171 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9172 flags |= CTL_LLF_FUA; 9173 if (cdb->byte2 & SWV_DPO) 9174 flags |= CTL_LLF_DPO; 9175 lba = scsi_4btoul(cdb->addr); 9176 num_blocks = scsi_2btoul(cdb->length); 9177 break; 9178 } 9179 case READ_12: 9180 case WRITE_12: { 9181 struct scsi_rw_12 *cdb; 9182 9183 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9184 if (cdb->byte2 & SRW12_FUA) 9185 flags |= CTL_LLF_FUA; 9186 if (cdb->byte2 & SRW12_DPO) 9187 flags |= CTL_LLF_DPO; 9188 lba = scsi_4btoul(cdb->addr); 9189 num_blocks = scsi_4btoul(cdb->length); 9190 break; 9191 } 9192 case WRITE_VERIFY_12: { 9193 struct scsi_write_verify_12 *cdb; 9194 9195 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9196 flags |= CTL_LLF_FUA; 9197 if (cdb->byte2 & SWV_DPO) 9198 flags |= CTL_LLF_DPO; 9199 lba = scsi_4btoul(cdb->addr); 9200 num_blocks = scsi_4btoul(cdb->length); 9201 break; 9202 } 9203 case READ_16: 9204 case WRITE_16: { 9205 struct scsi_rw_16 *cdb; 9206 9207 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9208 if (cdb->byte2 & SRW12_FUA) 9209 flags |= CTL_LLF_FUA; 9210 if (cdb->byte2 & SRW12_DPO) 9211 flags |= CTL_LLF_DPO; 9212 lba = scsi_8btou64(cdb->addr); 9213 num_blocks = scsi_4btoul(cdb->length); 9214 break; 9215 } 9216 case WRITE_ATOMIC_16: { 9217 struct scsi_rw_16 *cdb; 9218 9219 if (lun->be_lun->atomicblock == 0) { 9220 ctl_set_invalid_opcode(ctsio); 9221 ctl_done((union ctl_io *)ctsio); 9222 return (CTL_RETVAL_COMPLETE); 9223 } 9224 9225 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9226 if (cdb->byte2 & SRW12_FUA) 9227 flags |= CTL_LLF_FUA; 9228 if (cdb->byte2 & SRW12_DPO) 9229 flags |= CTL_LLF_DPO; 9230 lba = scsi_8btou64(cdb->addr); 9231 num_blocks = scsi_4btoul(cdb->length); 9232 if (num_blocks > lun->be_lun->atomicblock) { 9233 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9234 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9235 /*bit*/ 0); 9236 ctl_done((union ctl_io *)ctsio); 9237 return (CTL_RETVAL_COMPLETE); 9238 } 9239 break; 9240 } 9241 case WRITE_VERIFY_16: { 9242 struct scsi_write_verify_16 *cdb; 9243 9244 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9245 flags |= CTL_LLF_FUA; 9246 if (cdb->byte2 & SWV_DPO) 9247 flags |= CTL_LLF_DPO; 9248 lba = scsi_8btou64(cdb->addr); 9249 num_blocks = scsi_4btoul(cdb->length); 9250 break; 9251 } 9252 default: 9253 /* 9254 * We got a command we don't support. This shouldn't 9255 * happen, commands should be filtered out above us. 9256 */ 9257 ctl_set_invalid_opcode(ctsio); 9258 ctl_done((union ctl_io *)ctsio); 9259 9260 return (CTL_RETVAL_COMPLETE); 9261 break; /* NOTREACHED */ 9262 } 9263 9264 /* 9265 * The first check is to make sure we're in bounds, the second 9266 * check is to catch wrap-around problems. If the lba + num blocks 9267 * is less than the lba, then we've wrapped around and the block 9268 * range is invalid anyway. 9269 */ 9270 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9271 || ((lba + num_blocks) < lba)) { 9272 ctl_set_lba_out_of_range(ctsio); 9273 ctl_done((union ctl_io *)ctsio); 9274 return (CTL_RETVAL_COMPLETE); 9275 } 9276 9277 /* 9278 * According to SBC-3, a transfer length of 0 is not an error. 9279 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9280 * translates to 256 blocks for those commands. 9281 */ 9282 if (num_blocks == 0) { 9283 ctl_set_success(ctsio); 9284 ctl_done((union ctl_io *)ctsio); 9285 return (CTL_RETVAL_COMPLETE); 9286 } 9287 9288 /* Set FUA and/or DPO if caches are disabled. */ 9289 if (isread) { 9290 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9291 SCP_RCD) != 0) 9292 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9293 } else { 9294 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9295 SCP_WCE) == 0) 9296 flags |= CTL_LLF_FUA; 9297 } 9298 9299 lbalen = (struct ctl_lba_len_flags *) 9300 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9301 lbalen->lba = lba; 9302 lbalen->len = num_blocks; 9303 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9304 9305 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9306 ctsio->kern_rel_offset = 0; 9307 9308 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9309 9310 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9311 9312 return (retval); 9313} 9314 9315static int 9316ctl_cnw_cont(union ctl_io *io) 9317{ 9318 struct ctl_scsiio *ctsio; 9319 struct ctl_lun *lun; 9320 struct ctl_lba_len_flags *lbalen; 9321 int retval; 9322 9323 ctsio = &io->scsiio; 9324 ctsio->io_hdr.status = CTL_STATUS_NONE; 9325 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9326 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9327 lbalen = (struct ctl_lba_len_flags *) 9328 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9329 lbalen->flags &= ~CTL_LLF_COMPARE; 9330 lbalen->flags |= CTL_LLF_WRITE; 9331 9332 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9333 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9334 return (retval); 9335} 9336 9337int 9338ctl_cnw(struct ctl_scsiio *ctsio) 9339{ 9340 struct ctl_lun *lun; 9341 struct ctl_lba_len_flags *lbalen; 9342 uint64_t lba; 9343 uint32_t num_blocks; 9344 int flags, retval; 9345 9346 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9347 9348 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9349 9350 flags = 0; 9351 retval = CTL_RETVAL_COMPLETE; 9352 9353 switch (ctsio->cdb[0]) { 9354 case COMPARE_AND_WRITE: { 9355 struct scsi_compare_and_write *cdb; 9356 9357 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9358 if (cdb->byte2 & SRW10_FUA) 9359 flags |= CTL_LLF_FUA; 9360 if (cdb->byte2 & SRW10_DPO) 9361 flags |= CTL_LLF_DPO; 9362 lba = scsi_8btou64(cdb->addr); 9363 num_blocks = cdb->length; 9364 break; 9365 } 9366 default: 9367 /* 9368 * We got a command we don't support. This shouldn't 9369 * happen, commands should be filtered out above us. 9370 */ 9371 ctl_set_invalid_opcode(ctsio); 9372 ctl_done((union ctl_io *)ctsio); 9373 9374 return (CTL_RETVAL_COMPLETE); 9375 break; /* NOTREACHED */ 9376 } 9377 9378 /* 9379 * The first check is to make sure we're in bounds, the second 9380 * check is to catch wrap-around problems. If the lba + num blocks 9381 * is less than the lba, then we've wrapped around and the block 9382 * range is invalid anyway. 9383 */ 9384 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9385 || ((lba + num_blocks) < lba)) { 9386 ctl_set_lba_out_of_range(ctsio); 9387 ctl_done((union ctl_io *)ctsio); 9388 return (CTL_RETVAL_COMPLETE); 9389 } 9390 9391 /* 9392 * According to SBC-3, a transfer length of 0 is not an error. 9393 */ 9394 if (num_blocks == 0) { 9395 ctl_set_success(ctsio); 9396 ctl_done((union ctl_io *)ctsio); 9397 return (CTL_RETVAL_COMPLETE); 9398 } 9399 9400 /* Set FUA if write cache is disabled. */ 9401 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9402 SCP_WCE) == 0) 9403 flags |= CTL_LLF_FUA; 9404 9405 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9406 ctsio->kern_rel_offset = 0; 9407 9408 /* 9409 * Set the IO_CONT flag, so that if this I/O gets passed to 9410 * ctl_data_submit_done(), it'll get passed back to 9411 * ctl_ctl_cnw_cont() for further processing. 9412 */ 9413 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9414 ctsio->io_cont = ctl_cnw_cont; 9415 9416 lbalen = (struct ctl_lba_len_flags *) 9417 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9418 lbalen->lba = lba; 9419 lbalen->len = num_blocks; 9420 lbalen->flags = CTL_LLF_COMPARE | flags; 9421 9422 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9423 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9424 return (retval); 9425} 9426 9427int 9428ctl_verify(struct ctl_scsiio *ctsio) 9429{ 9430 struct ctl_lun *lun; 9431 struct ctl_lba_len_flags *lbalen; 9432 uint64_t lba; 9433 uint32_t num_blocks; 9434 int bytchk, flags; 9435 int retval; 9436 9437 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9438 9439 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9440 9441 bytchk = 0; 9442 flags = CTL_LLF_FUA; 9443 retval = CTL_RETVAL_COMPLETE; 9444 9445 switch (ctsio->cdb[0]) { 9446 case VERIFY_10: { 9447 struct scsi_verify_10 *cdb; 9448 9449 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9450 if (cdb->byte2 & SVFY_BYTCHK) 9451 bytchk = 1; 9452 if (cdb->byte2 & SVFY_DPO) 9453 flags |= CTL_LLF_DPO; 9454 lba = scsi_4btoul(cdb->addr); 9455 num_blocks = scsi_2btoul(cdb->length); 9456 break; 9457 } 9458 case VERIFY_12: { 9459 struct scsi_verify_12 *cdb; 9460 9461 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9462 if (cdb->byte2 & SVFY_BYTCHK) 9463 bytchk = 1; 9464 if (cdb->byte2 & SVFY_DPO) 9465 flags |= CTL_LLF_DPO; 9466 lba = scsi_4btoul(cdb->addr); 9467 num_blocks = scsi_4btoul(cdb->length); 9468 break; 9469 } 9470 case VERIFY_16: { 9471 struct scsi_rw_16 *cdb; 9472 9473 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9474 if (cdb->byte2 & SVFY_BYTCHK) 9475 bytchk = 1; 9476 if (cdb->byte2 & SVFY_DPO) 9477 flags |= CTL_LLF_DPO; 9478 lba = scsi_8btou64(cdb->addr); 9479 num_blocks = scsi_4btoul(cdb->length); 9480 break; 9481 } 9482 default: 9483 /* 9484 * We got a command we don't support. This shouldn't 9485 * happen, commands should be filtered out above us. 9486 */ 9487 ctl_set_invalid_opcode(ctsio); 9488 ctl_done((union ctl_io *)ctsio); 9489 return (CTL_RETVAL_COMPLETE); 9490 } 9491 9492 /* 9493 * The first check is to make sure we're in bounds, the second 9494 * check is to catch wrap-around problems. If the lba + num blocks 9495 * is less than the lba, then we've wrapped around and the block 9496 * range is invalid anyway. 9497 */ 9498 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9499 || ((lba + num_blocks) < lba)) { 9500 ctl_set_lba_out_of_range(ctsio); 9501 ctl_done((union ctl_io *)ctsio); 9502 return (CTL_RETVAL_COMPLETE); 9503 } 9504 9505 /* 9506 * According to SBC-3, a transfer length of 0 is not an error. 9507 */ 9508 if (num_blocks == 0) { 9509 ctl_set_success(ctsio); 9510 ctl_done((union ctl_io *)ctsio); 9511 return (CTL_RETVAL_COMPLETE); 9512 } 9513 9514 lbalen = (struct ctl_lba_len_flags *) 9515 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9516 lbalen->lba = lba; 9517 lbalen->len = num_blocks; 9518 if (bytchk) { 9519 lbalen->flags = CTL_LLF_COMPARE | flags; 9520 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9521 } else { 9522 lbalen->flags = CTL_LLF_VERIFY | flags; 9523 ctsio->kern_total_len = 0; 9524 } 9525 ctsio->kern_rel_offset = 0; 9526 9527 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9528 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9529 return (retval); 9530} 9531 9532int 9533ctl_report_luns(struct ctl_scsiio *ctsio) 9534{ 9535 struct scsi_report_luns *cdb; 9536 struct scsi_report_luns_data *lun_data; 9537 struct ctl_lun *lun, *request_lun; 9538 int num_luns, retval; 9539 uint32_t alloc_len, lun_datalen; 9540 int num_filled, well_known; 9541 uint32_t initidx, targ_lun_id, lun_id; 9542 9543 retval = CTL_RETVAL_COMPLETE; 9544 well_known = 0; 9545 9546 cdb = (struct scsi_report_luns *)ctsio->cdb; 9547 9548 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9549 9550 mtx_lock(&control_softc->ctl_lock); 9551 num_luns = control_softc->num_luns; 9552 mtx_unlock(&control_softc->ctl_lock); 9553 9554 switch (cdb->select_report) { 9555 case RPL_REPORT_DEFAULT: 9556 case RPL_REPORT_ALL: 9557 break; 9558 case RPL_REPORT_WELLKNOWN: 9559 well_known = 1; 9560 num_luns = 0; 9561 break; 9562 default: 9563 ctl_set_invalid_field(ctsio, 9564 /*sks_valid*/ 1, 9565 /*command*/ 1, 9566 /*field*/ 2, 9567 /*bit_valid*/ 0, 9568 /*bit*/ 0); 9569 ctl_done((union ctl_io *)ctsio); 9570 return (retval); 9571 break; /* NOTREACHED */ 9572 } 9573 9574 alloc_len = scsi_4btoul(cdb->length); 9575 /* 9576 * The initiator has to allocate at least 16 bytes for this request, 9577 * so he can at least get the header and the first LUN. Otherwise 9578 * we reject the request (per SPC-3 rev 14, section 6.21). 9579 */ 9580 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9581 sizeof(struct scsi_report_luns_lundata))) { 9582 ctl_set_invalid_field(ctsio, 9583 /*sks_valid*/ 1, 9584 /*command*/ 1, 9585 /*field*/ 6, 9586 /*bit_valid*/ 0, 9587 /*bit*/ 0); 9588 ctl_done((union ctl_io *)ctsio); 9589 return (retval); 9590 } 9591 9592 request_lun = (struct ctl_lun *) 9593 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9594 9595 lun_datalen = sizeof(*lun_data) + 9596 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9597 9598 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9599 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9600 ctsio->kern_sg_entries = 0; 9601 9602 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9603 9604 mtx_lock(&control_softc->ctl_lock); 9605 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9606 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9607 if (lun_id >= CTL_MAX_LUNS) 9608 continue; 9609 lun = control_softc->ctl_luns[lun_id]; 9610 if (lun == NULL) 9611 continue; 9612 9613 if (targ_lun_id <= 0xff) { 9614 /* 9615 * Peripheral addressing method, bus number 0. 9616 */ 9617 lun_data->luns[num_filled].lundata[0] = 9618 RPL_LUNDATA_ATYP_PERIPH; 9619 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9620 num_filled++; 9621 } else if (targ_lun_id <= 0x3fff) { 9622 /* 9623 * Flat addressing method. 9624 */ 9625 lun_data->luns[num_filled].lundata[0] = 9626 RPL_LUNDATA_ATYP_FLAT | 9627 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9628#ifdef OLDCTLHEADERS 9629 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9630 (targ_lun_id & SRLD_BUS_LUN_MASK); 9631#endif 9632 lun_data->luns[num_filled].lundata[1] = 9633#ifdef OLDCTLHEADERS 9634 targ_lun_id >> SRLD_BUS_LUN_BITS; 9635#endif 9636 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9637 num_filled++; 9638 } else { 9639 printf("ctl_report_luns: bogus LUN number %jd, " 9640 "skipping\n", (intmax_t)targ_lun_id); 9641 } 9642 /* 9643 * According to SPC-3, rev 14 section 6.21: 9644 * 9645 * "The execution of a REPORT LUNS command to any valid and 9646 * installed logical unit shall clear the REPORTED LUNS DATA 9647 * HAS CHANGED unit attention condition for all logical 9648 * units of that target with respect to the requesting 9649 * initiator. A valid and installed logical unit is one 9650 * having a PERIPHERAL QUALIFIER of 000b in the standard 9651 * INQUIRY data (see 6.4.2)." 9652 * 9653 * If request_lun is NULL, the LUN this report luns command 9654 * was issued to is either disabled or doesn't exist. In that 9655 * case, we shouldn't clear any pending lun change unit 9656 * attention. 9657 */ 9658 if (request_lun != NULL) { 9659 mtx_lock(&lun->lun_lock); 9660 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9661 mtx_unlock(&lun->lun_lock); 9662 } 9663 } 9664 mtx_unlock(&control_softc->ctl_lock); 9665 9666 /* 9667 * It's quite possible that we've returned fewer LUNs than we allocated 9668 * space for. Trim it. 9669 */ 9670 lun_datalen = sizeof(*lun_data) + 9671 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9672 9673 if (lun_datalen < alloc_len) { 9674 ctsio->residual = alloc_len - lun_datalen; 9675 ctsio->kern_data_len = lun_datalen; 9676 ctsio->kern_total_len = lun_datalen; 9677 } else { 9678 ctsio->residual = 0; 9679 ctsio->kern_data_len = alloc_len; 9680 ctsio->kern_total_len = alloc_len; 9681 } 9682 ctsio->kern_data_resid = 0; 9683 ctsio->kern_rel_offset = 0; 9684 ctsio->kern_sg_entries = 0; 9685 9686 /* 9687 * We set this to the actual data length, regardless of how much 9688 * space we actually have to return results. If the user looks at 9689 * this value, he'll know whether or not he allocated enough space 9690 * and reissue the command if necessary. We don't support well 9691 * known logical units, so if the user asks for that, return none. 9692 */ 9693 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9694 9695 /* 9696 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9697 * this request. 9698 */ 9699 ctsio->scsi_status = SCSI_STATUS_OK; 9700 9701 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9702 ctsio->be_move_done = ctl_config_move_done; 9703 ctl_datamove((union ctl_io *)ctsio); 9704 9705 return (retval); 9706} 9707 9708int 9709ctl_request_sense(struct ctl_scsiio *ctsio) 9710{ 9711 struct scsi_request_sense *cdb; 9712 struct scsi_sense_data *sense_ptr; 9713 struct ctl_lun *lun; 9714 uint32_t initidx; 9715 int have_error; 9716 scsi_sense_data_type sense_format; 9717 9718 cdb = (struct scsi_request_sense *)ctsio->cdb; 9719 9720 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9721 9722 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9723 9724 /* 9725 * Determine which sense format the user wants. 9726 */ 9727 if (cdb->byte2 & SRS_DESC) 9728 sense_format = SSD_TYPE_DESC; 9729 else 9730 sense_format = SSD_TYPE_FIXED; 9731 9732 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9733 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9734 ctsio->kern_sg_entries = 0; 9735 9736 /* 9737 * struct scsi_sense_data, which is currently set to 256 bytes, is 9738 * larger than the largest allowed value for the length field in the 9739 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9740 */ 9741 ctsio->residual = 0; 9742 ctsio->kern_data_len = cdb->length; 9743 ctsio->kern_total_len = cdb->length; 9744 9745 ctsio->kern_data_resid = 0; 9746 ctsio->kern_rel_offset = 0; 9747 ctsio->kern_sg_entries = 0; 9748 9749 /* 9750 * If we don't have a LUN, we don't have any pending sense. 9751 */ 9752 if (lun == NULL) 9753 goto no_sense; 9754 9755 have_error = 0; 9756 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9757 /* 9758 * Check for pending sense, and then for pending unit attentions. 9759 * Pending sense gets returned first, then pending unit attentions. 9760 */ 9761 mtx_lock(&lun->lun_lock); 9762#ifdef CTL_WITH_CA 9763 if (ctl_is_set(lun->have_ca, initidx)) { 9764 scsi_sense_data_type stored_format; 9765 9766 /* 9767 * Check to see which sense format was used for the stored 9768 * sense data. 9769 */ 9770 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9771 9772 /* 9773 * If the user requested a different sense format than the 9774 * one we stored, then we need to convert it to the other 9775 * format. If we're going from descriptor to fixed format 9776 * sense data, we may lose things in translation, depending 9777 * on what options were used. 9778 * 9779 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9780 * for some reason we'll just copy it out as-is. 9781 */ 9782 if ((stored_format == SSD_TYPE_FIXED) 9783 && (sense_format == SSD_TYPE_DESC)) 9784 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9785 &lun->pending_sense[initidx], 9786 (struct scsi_sense_data_desc *)sense_ptr); 9787 else if ((stored_format == SSD_TYPE_DESC) 9788 && (sense_format == SSD_TYPE_FIXED)) 9789 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9790 &lun->pending_sense[initidx], 9791 (struct scsi_sense_data_fixed *)sense_ptr); 9792 else 9793 memcpy(sense_ptr, &lun->pending_sense[initidx], 9794 ctl_min(sizeof(*sense_ptr), 9795 sizeof(lun->pending_sense[initidx]))); 9796 9797 ctl_clear_mask(lun->have_ca, initidx); 9798 have_error = 1; 9799 } else 9800#endif 9801 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9802 ctl_ua_type ua_type; 9803 9804 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9805 sense_ptr, sense_format); 9806 if (ua_type != CTL_UA_NONE) 9807 have_error = 1; 9808 } 9809 mtx_unlock(&lun->lun_lock); 9810 9811 /* 9812 * We already have a pending error, return it. 9813 */ 9814 if (have_error != 0) { 9815 /* 9816 * We report the SCSI status as OK, since the status of the 9817 * request sense command itself is OK. 9818 */ 9819 ctsio->scsi_status = SCSI_STATUS_OK; 9820 9821 /* 9822 * We report 0 for the sense length, because we aren't doing 9823 * autosense in this case. We're reporting sense as 9824 * parameter data. 9825 */ 9826 ctsio->sense_len = 0; 9827 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9828 ctsio->be_move_done = ctl_config_move_done; 9829 ctl_datamove((union ctl_io *)ctsio); 9830 9831 return (CTL_RETVAL_COMPLETE); 9832 } 9833 9834no_sense: 9835 9836 /* 9837 * No sense information to report, so we report that everything is 9838 * okay. 9839 */ 9840 ctl_set_sense_data(sense_ptr, 9841 lun, 9842 sense_format, 9843 /*current_error*/ 1, 9844 /*sense_key*/ SSD_KEY_NO_SENSE, 9845 /*asc*/ 0x00, 9846 /*ascq*/ 0x00, 9847 SSD_ELEM_NONE); 9848 9849 ctsio->scsi_status = SCSI_STATUS_OK; 9850 9851 /* 9852 * We report 0 for the sense length, because we aren't doing 9853 * autosense in this case. We're reporting sense as parameter data. 9854 */ 9855 ctsio->sense_len = 0; 9856 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9857 ctsio->be_move_done = ctl_config_move_done; 9858 ctl_datamove((union ctl_io *)ctsio); 9859 9860 return (CTL_RETVAL_COMPLETE); 9861} 9862 9863int 9864ctl_tur(struct ctl_scsiio *ctsio) 9865{ 9866 struct ctl_lun *lun; 9867 9868 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9869 9870 CTL_DEBUG_PRINT(("ctl_tur\n")); 9871 9872 if (lun == NULL) 9873 return (EINVAL); 9874 9875 ctsio->scsi_status = SCSI_STATUS_OK; 9876 ctsio->io_hdr.status = CTL_SUCCESS; 9877 9878 ctl_done((union ctl_io *)ctsio); 9879 9880 return (CTL_RETVAL_COMPLETE); 9881} 9882 9883#ifdef notyet 9884static int 9885ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9886{ 9887 9888} 9889#endif 9890 9891static int 9892ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9893{ 9894 struct scsi_vpd_supported_pages *pages; 9895 int sup_page_size; 9896 struct ctl_lun *lun; 9897 9898 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9899 9900 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9901 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9902 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9903 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9904 ctsio->kern_sg_entries = 0; 9905 9906 if (sup_page_size < alloc_len) { 9907 ctsio->residual = alloc_len - sup_page_size; 9908 ctsio->kern_data_len = sup_page_size; 9909 ctsio->kern_total_len = sup_page_size; 9910 } else { 9911 ctsio->residual = 0; 9912 ctsio->kern_data_len = alloc_len; 9913 ctsio->kern_total_len = alloc_len; 9914 } 9915 ctsio->kern_data_resid = 0; 9916 ctsio->kern_rel_offset = 0; 9917 ctsio->kern_sg_entries = 0; 9918 9919 /* 9920 * The control device is always connected. The disk device, on the 9921 * other hand, may not be online all the time. Need to change this 9922 * to figure out whether the disk device is actually online or not. 9923 */ 9924 if (lun != NULL) 9925 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9926 lun->be_lun->lun_type; 9927 else 9928 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9929 9930 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9931 /* Supported VPD pages */ 9932 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9933 /* Serial Number */ 9934 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9935 /* Device Identification */ 9936 pages->page_list[2] = SVPD_DEVICE_ID; 9937 /* Extended INQUIRY Data */ 9938 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9939 /* Mode Page Policy */ 9940 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9941 /* SCSI Ports */ 9942 pages->page_list[5] = SVPD_SCSI_PORTS; 9943 /* Third-party Copy */ 9944 pages->page_list[6] = SVPD_SCSI_TPC; 9945 /* Block limits */ 9946 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9947 /* Block Device Characteristics */ 9948 pages->page_list[8] = SVPD_BDC; 9949 /* Logical Block Provisioning */ 9950 pages->page_list[9] = SVPD_LBP; 9951 9952 ctsio->scsi_status = SCSI_STATUS_OK; 9953 9954 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9955 ctsio->be_move_done = ctl_config_move_done; 9956 ctl_datamove((union ctl_io *)ctsio); 9957 9958 return (CTL_RETVAL_COMPLETE); 9959} 9960 9961static int 9962ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9963{ 9964 struct scsi_vpd_unit_serial_number *sn_ptr; 9965 struct ctl_lun *lun; 9966 9967 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9968 9969 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9970 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9971 ctsio->kern_sg_entries = 0; 9972 9973 if (sizeof(*sn_ptr) < alloc_len) { 9974 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9975 ctsio->kern_data_len = sizeof(*sn_ptr); 9976 ctsio->kern_total_len = sizeof(*sn_ptr); 9977 } else { 9978 ctsio->residual = 0; 9979 ctsio->kern_data_len = alloc_len; 9980 ctsio->kern_total_len = alloc_len; 9981 } 9982 ctsio->kern_data_resid = 0; 9983 ctsio->kern_rel_offset = 0; 9984 ctsio->kern_sg_entries = 0; 9985 9986 /* 9987 * The control device is always connected. The disk device, on the 9988 * other hand, may not be online all the time. Need to change this 9989 * to figure out whether the disk device is actually online or not. 9990 */ 9991 if (lun != NULL) 9992 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9993 lun->be_lun->lun_type; 9994 else 9995 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9996 9997 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9998 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9999 /* 10000 * If we don't have a LUN, we just leave the serial number as 10001 * all spaces. 10002 */ 10003 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 10004 if (lun != NULL) { 10005 strncpy((char *)sn_ptr->serial_num, 10006 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 10007 } 10008 ctsio->scsi_status = SCSI_STATUS_OK; 10009 10010 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10011 ctsio->be_move_done = ctl_config_move_done; 10012 ctl_datamove((union ctl_io *)ctsio); 10013 10014 return (CTL_RETVAL_COMPLETE); 10015} 10016 10017 10018static int 10019ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 10020{ 10021 struct scsi_vpd_extended_inquiry_data *eid_ptr; 10022 struct ctl_lun *lun; 10023 int data_len; 10024 10025 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10026 10027 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 10028 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10029 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 10030 ctsio->kern_sg_entries = 0; 10031 10032 if (data_len < alloc_len) { 10033 ctsio->residual = alloc_len - data_len; 10034 ctsio->kern_data_len = data_len; 10035 ctsio->kern_total_len = data_len; 10036 } else { 10037 ctsio->residual = 0; 10038 ctsio->kern_data_len = alloc_len; 10039 ctsio->kern_total_len = alloc_len; 10040 } 10041 ctsio->kern_data_resid = 0; 10042 ctsio->kern_rel_offset = 0; 10043 ctsio->kern_sg_entries = 0; 10044 10045 /* 10046 * The control device is always connected. The disk device, on the 10047 * other hand, may not be online all the time. 10048 */ 10049 if (lun != NULL) 10050 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10051 lun->be_lun->lun_type; 10052 else 10053 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10054 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 10055 eid_ptr->page_length = data_len - 4; 10056 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 10057 eid_ptr->flags3 = SVPD_EID_V_SUP; 10058 10059 ctsio->scsi_status = SCSI_STATUS_OK; 10060 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10061 ctsio->be_move_done = ctl_config_move_done; 10062 ctl_datamove((union ctl_io *)ctsio); 10063 10064 return (CTL_RETVAL_COMPLETE); 10065} 10066 10067static int 10068ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 10069{ 10070 struct scsi_vpd_mode_page_policy *mpp_ptr; 10071 struct ctl_lun *lun; 10072 int data_len; 10073 10074 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10075 10076 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 10077 sizeof(struct scsi_vpd_mode_page_policy_descr); 10078 10079 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10080 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 10081 ctsio->kern_sg_entries = 0; 10082 10083 if (data_len < alloc_len) { 10084 ctsio->residual = alloc_len - data_len; 10085 ctsio->kern_data_len = data_len; 10086 ctsio->kern_total_len = data_len; 10087 } else { 10088 ctsio->residual = 0; 10089 ctsio->kern_data_len = alloc_len; 10090 ctsio->kern_total_len = alloc_len; 10091 } 10092 ctsio->kern_data_resid = 0; 10093 ctsio->kern_rel_offset = 0; 10094 ctsio->kern_sg_entries = 0; 10095 10096 /* 10097 * The control device is always connected. The disk device, on the 10098 * other hand, may not be online all the time. 10099 */ 10100 if (lun != NULL) 10101 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10102 lun->be_lun->lun_type; 10103 else 10104 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10105 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 10106 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 10107 mpp_ptr->descr[0].page_code = 0x3f; 10108 mpp_ptr->descr[0].subpage_code = 0xff; 10109 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10110 10111 ctsio->scsi_status = SCSI_STATUS_OK; 10112 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10113 ctsio->be_move_done = ctl_config_move_done; 10114 ctl_datamove((union ctl_io *)ctsio); 10115 10116 return (CTL_RETVAL_COMPLETE); 10117} 10118 10119static int 10120ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10121{ 10122 struct scsi_vpd_device_id *devid_ptr; 10123 struct scsi_vpd_id_descriptor *desc; 10124 struct ctl_softc *ctl_softc; 10125 struct ctl_lun *lun; 10126 struct ctl_port *port; 10127 int data_len; 10128 uint8_t proto; 10129 10130 ctl_softc = control_softc; 10131 10132 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10133 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10134 10135 data_len = sizeof(struct scsi_vpd_device_id) + 10136 sizeof(struct scsi_vpd_id_descriptor) + 10137 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10138 sizeof(struct scsi_vpd_id_descriptor) + 10139 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10140 if (lun && lun->lun_devid) 10141 data_len += lun->lun_devid->len; 10142 if (port->port_devid) 10143 data_len += port->port_devid->len; 10144 if (port->target_devid) 10145 data_len += port->target_devid->len; 10146 10147 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10148 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10149 ctsio->kern_sg_entries = 0; 10150 10151 if (data_len < alloc_len) { 10152 ctsio->residual = alloc_len - data_len; 10153 ctsio->kern_data_len = data_len; 10154 ctsio->kern_total_len = data_len; 10155 } else { 10156 ctsio->residual = 0; 10157 ctsio->kern_data_len = alloc_len; 10158 ctsio->kern_total_len = alloc_len; 10159 } 10160 ctsio->kern_data_resid = 0; 10161 ctsio->kern_rel_offset = 0; 10162 ctsio->kern_sg_entries = 0; 10163 10164 /* 10165 * The control device is always connected. The disk device, on the 10166 * other hand, may not be online all the time. 10167 */ 10168 if (lun != NULL) 10169 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10170 lun->be_lun->lun_type; 10171 else 10172 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10173 devid_ptr->page_code = SVPD_DEVICE_ID; 10174 scsi_ulto2b(data_len - 4, devid_ptr->length); 10175 10176 if (port->port_type == CTL_PORT_FC) 10177 proto = SCSI_PROTO_FC << 4; 10178 else if (port->port_type == CTL_PORT_ISCSI) 10179 proto = SCSI_PROTO_ISCSI << 4; 10180 else 10181 proto = SCSI_PROTO_SPI << 4; 10182 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10183 10184 /* 10185 * We're using a LUN association here. i.e., this device ID is a 10186 * per-LUN identifier. 10187 */ 10188 if (lun && lun->lun_devid) { 10189 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10190 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10191 lun->lun_devid->len); 10192 } 10193 10194 /* 10195 * This is for the WWPN which is a port association. 10196 */ 10197 if (port->port_devid) { 10198 memcpy(desc, port->port_devid->data, port->port_devid->len); 10199 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10200 port->port_devid->len); 10201 } 10202 10203 /* 10204 * This is for the Relative Target Port(type 4h) identifier 10205 */ 10206 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10207 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10208 SVPD_ID_TYPE_RELTARG; 10209 desc->length = 4; 10210 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10211 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10212 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10213 10214 /* 10215 * This is for the Target Port Group(type 5h) identifier 10216 */ 10217 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10218 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10219 SVPD_ID_TYPE_TPORTGRP; 10220 desc->length = 4; 10221 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10222 &desc->identifier[2]); 10223 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10224 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10225 10226 /* 10227 * This is for the Target identifier 10228 */ 10229 if (port->target_devid) { 10230 memcpy(desc, port->target_devid->data, port->target_devid->len); 10231 } 10232 10233 ctsio->scsi_status = SCSI_STATUS_OK; 10234 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10235 ctsio->be_move_done = ctl_config_move_done; 10236 ctl_datamove((union ctl_io *)ctsio); 10237 10238 return (CTL_RETVAL_COMPLETE); 10239} 10240 10241static int 10242ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10243{ 10244 struct ctl_softc *softc = control_softc; 10245 struct scsi_vpd_scsi_ports *sp; 10246 struct scsi_vpd_port_designation *pd; 10247 struct scsi_vpd_port_designation_cont *pdc; 10248 struct ctl_lun *lun; 10249 struct ctl_port *port; 10250 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10251 int num_target_port_groups, single; 10252 10253 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10254 10255 single = ctl_is_single; 10256 if (single) 10257 num_target_port_groups = 1; 10258 else 10259 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10260 num_target_ports = 0; 10261 iid_len = 0; 10262 id_len = 0; 10263 mtx_lock(&softc->ctl_lock); 10264 STAILQ_FOREACH(port, &softc->port_list, links) { 10265 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10266 continue; 10267 if (lun != NULL && 10268 ctl_map_lun_back(port->targ_port, lun->lun) >= 10269 CTL_MAX_LUNS) 10270 continue; 10271 num_target_ports++; 10272 if (port->init_devid) 10273 iid_len += port->init_devid->len; 10274 if (port->port_devid) 10275 id_len += port->port_devid->len; 10276 } 10277 mtx_unlock(&softc->ctl_lock); 10278 10279 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10280 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10281 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10282 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10283 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10284 ctsio->kern_sg_entries = 0; 10285 10286 if (data_len < alloc_len) { 10287 ctsio->residual = alloc_len - data_len; 10288 ctsio->kern_data_len = data_len; 10289 ctsio->kern_total_len = data_len; 10290 } else { 10291 ctsio->residual = 0; 10292 ctsio->kern_data_len = alloc_len; 10293 ctsio->kern_total_len = alloc_len; 10294 } 10295 ctsio->kern_data_resid = 0; 10296 ctsio->kern_rel_offset = 0; 10297 ctsio->kern_sg_entries = 0; 10298 10299 /* 10300 * The control device is always connected. The disk device, on the 10301 * other hand, may not be online all the time. Need to change this 10302 * to figure out whether the disk device is actually online or not. 10303 */ 10304 if (lun != NULL) 10305 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10306 lun->be_lun->lun_type; 10307 else 10308 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10309 10310 sp->page_code = SVPD_SCSI_PORTS; 10311 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10312 sp->page_length); 10313 pd = &sp->design[0]; 10314 10315 mtx_lock(&softc->ctl_lock); 10316 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10317 pg = 0; 10318 else 10319 pg = 1; 10320 for (g = 0; g < num_target_port_groups; g++) { 10321 STAILQ_FOREACH(port, &softc->port_list, links) { 10322 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10323 continue; 10324 if (lun != NULL && 10325 ctl_map_lun_back(port->targ_port, lun->lun) >= 10326 CTL_MAX_LUNS) 10327 continue; 10328 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10329 scsi_ulto2b(p, pd->relative_port_id); 10330 if (port->init_devid && g == pg) { 10331 iid_len = port->init_devid->len; 10332 memcpy(pd->initiator_transportid, 10333 port->init_devid->data, port->init_devid->len); 10334 } else 10335 iid_len = 0; 10336 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10337 pdc = (struct scsi_vpd_port_designation_cont *) 10338 (&pd->initiator_transportid[iid_len]); 10339 if (port->port_devid && g == pg) { 10340 id_len = port->port_devid->len; 10341 memcpy(pdc->target_port_descriptors, 10342 port->port_devid->data, port->port_devid->len); 10343 } else 10344 id_len = 0; 10345 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10346 pd = (struct scsi_vpd_port_designation *) 10347 ((uint8_t *)pdc->target_port_descriptors + id_len); 10348 } 10349 } 10350 mtx_unlock(&softc->ctl_lock); 10351 10352 ctsio->scsi_status = SCSI_STATUS_OK; 10353 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10354 ctsio->be_move_done = ctl_config_move_done; 10355 ctl_datamove((union ctl_io *)ctsio); 10356 10357 return (CTL_RETVAL_COMPLETE); 10358} 10359 10360static int 10361ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10362{ 10363 struct scsi_vpd_block_limits *bl_ptr; 10364 struct ctl_lun *lun; 10365 int bs; 10366 10367 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10368 10369 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10370 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10371 ctsio->kern_sg_entries = 0; 10372 10373 if (sizeof(*bl_ptr) < alloc_len) { 10374 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10375 ctsio->kern_data_len = sizeof(*bl_ptr); 10376 ctsio->kern_total_len = sizeof(*bl_ptr); 10377 } else { 10378 ctsio->residual = 0; 10379 ctsio->kern_data_len = alloc_len; 10380 ctsio->kern_total_len = alloc_len; 10381 } 10382 ctsio->kern_data_resid = 0; 10383 ctsio->kern_rel_offset = 0; 10384 ctsio->kern_sg_entries = 0; 10385 10386 /* 10387 * The control device is always connected. The disk device, on the 10388 * other hand, may not be online all the time. Need to change this 10389 * to figure out whether the disk device is actually online or not. 10390 */ 10391 if (lun != NULL) 10392 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10393 lun->be_lun->lun_type; 10394 else 10395 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10396 10397 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10398 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10399 bl_ptr->max_cmp_write_len = 0xff; 10400 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10401 if (lun != NULL) { 10402 bs = lun->be_lun->blocksize; 10403 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10404 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10405 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10406 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10407 if (lun->be_lun->pblockexp != 0) { 10408 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10409 bl_ptr->opt_unmap_grain); 10410 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10411 bl_ptr->unmap_grain_align); 10412 } 10413 } 10414 scsi_ulto4b(lun->be_lun->atomicblock, 10415 bl_ptr->max_atomic_transfer_length); 10416 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10417 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10418 } 10419 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10420 10421 ctsio->scsi_status = SCSI_STATUS_OK; 10422 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10423 ctsio->be_move_done = ctl_config_move_done; 10424 ctl_datamove((union ctl_io *)ctsio); 10425 10426 return (CTL_RETVAL_COMPLETE); 10427} 10428 10429static int 10430ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10431{ 10432 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10433 struct ctl_lun *lun; 10434 10435 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10436 10437 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10438 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10439 ctsio->kern_sg_entries = 0; 10440 10441 if (sizeof(*bdc_ptr) < alloc_len) { 10442 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10443 ctsio->kern_data_len = sizeof(*bdc_ptr); 10444 ctsio->kern_total_len = sizeof(*bdc_ptr); 10445 } else { 10446 ctsio->residual = 0; 10447 ctsio->kern_data_len = alloc_len; 10448 ctsio->kern_total_len = alloc_len; 10449 } 10450 ctsio->kern_data_resid = 0; 10451 ctsio->kern_rel_offset = 0; 10452 ctsio->kern_sg_entries = 0; 10453 10454 /* 10455 * The control device is always connected. The disk device, on the 10456 * other hand, may not be online all the time. Need to change this 10457 * to figure out whether the disk device is actually online or not. 10458 */ 10459 if (lun != NULL) 10460 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10461 lun->be_lun->lun_type; 10462 else 10463 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10464 bdc_ptr->page_code = SVPD_BDC; 10465 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10466 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10467 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10468 10469 ctsio->scsi_status = SCSI_STATUS_OK; 10470 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10471 ctsio->be_move_done = ctl_config_move_done; 10472 ctl_datamove((union ctl_io *)ctsio); 10473 10474 return (CTL_RETVAL_COMPLETE); 10475} 10476 10477static int 10478ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10479{ 10480 struct scsi_vpd_logical_block_prov *lbp_ptr; 10481 struct ctl_lun *lun; 10482 10483 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10484 10485 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10486 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10487 ctsio->kern_sg_entries = 0; 10488 10489 if (sizeof(*lbp_ptr) < alloc_len) { 10490 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10491 ctsio->kern_data_len = sizeof(*lbp_ptr); 10492 ctsio->kern_total_len = sizeof(*lbp_ptr); 10493 } else { 10494 ctsio->residual = 0; 10495 ctsio->kern_data_len = alloc_len; 10496 ctsio->kern_total_len = alloc_len; 10497 } 10498 ctsio->kern_data_resid = 0; 10499 ctsio->kern_rel_offset = 0; 10500 ctsio->kern_sg_entries = 0; 10501 10502 /* 10503 * The control device is always connected. The disk device, on the 10504 * other hand, may not be online all the time. Need to change this 10505 * to figure out whether the disk device is actually online or not. 10506 */ 10507 if (lun != NULL) 10508 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10509 lun->be_lun->lun_type; 10510 else 10511 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10512 10513 lbp_ptr->page_code = SVPD_LBP; 10514 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10515 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10516 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10517 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10518 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10519 } 10520 10521 ctsio->scsi_status = SCSI_STATUS_OK; 10522 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10523 ctsio->be_move_done = ctl_config_move_done; 10524 ctl_datamove((union ctl_io *)ctsio); 10525 10526 return (CTL_RETVAL_COMPLETE); 10527} 10528 10529static int 10530ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10531{ 10532 struct scsi_inquiry *cdb; 10533 struct ctl_lun *lun; 10534 int alloc_len, retval; 10535 10536 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10537 cdb = (struct scsi_inquiry *)ctsio->cdb; 10538 10539 retval = CTL_RETVAL_COMPLETE; 10540 10541 alloc_len = scsi_2btoul(cdb->length); 10542 10543 switch (cdb->page_code) { 10544 case SVPD_SUPPORTED_PAGES: 10545 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10546 break; 10547 case SVPD_UNIT_SERIAL_NUMBER: 10548 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10549 break; 10550 case SVPD_DEVICE_ID: 10551 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10552 break; 10553 case SVPD_EXTENDED_INQUIRY_DATA: 10554 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10555 break; 10556 case SVPD_MODE_PAGE_POLICY: 10557 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10558 break; 10559 case SVPD_SCSI_PORTS: 10560 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10561 break; 10562 case SVPD_SCSI_TPC: 10563 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10564 break; 10565 case SVPD_BLOCK_LIMITS: 10566 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10567 break; 10568 case SVPD_BDC: 10569 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10570 break; 10571 case SVPD_LBP: 10572 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10573 break; 10574 default: 10575 ctl_set_invalid_field(ctsio, 10576 /*sks_valid*/ 1, 10577 /*command*/ 1, 10578 /*field*/ 2, 10579 /*bit_valid*/ 0, 10580 /*bit*/ 0); 10581 ctl_done((union ctl_io *)ctsio); 10582 retval = CTL_RETVAL_COMPLETE; 10583 break; 10584 } 10585 10586 return (retval); 10587} 10588 10589static int 10590ctl_inquiry_std(struct ctl_scsiio *ctsio) 10591{ 10592 struct scsi_inquiry_data *inq_ptr; 10593 struct scsi_inquiry *cdb; 10594 struct ctl_softc *ctl_softc; 10595 struct ctl_lun *lun; 10596 char *val; 10597 uint32_t alloc_len, data_len; 10598 ctl_port_type port_type; 10599 10600 ctl_softc = control_softc; 10601 10602 /* 10603 * Figure out whether we're talking to a Fibre Channel port or not. 10604 * We treat the ioctl front end, and any SCSI adapters, as packetized 10605 * SCSI front ends. 10606 */ 10607 port_type = ctl_softc->ctl_ports[ 10608 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10609 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10610 port_type = CTL_PORT_SCSI; 10611 10612 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10613 cdb = (struct scsi_inquiry *)ctsio->cdb; 10614 alloc_len = scsi_2btoul(cdb->length); 10615 10616 /* 10617 * We malloc the full inquiry data size here and fill it 10618 * in. If the user only asks for less, we'll give him 10619 * that much. 10620 */ 10621 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10622 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10623 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10624 ctsio->kern_sg_entries = 0; 10625 ctsio->kern_data_resid = 0; 10626 ctsio->kern_rel_offset = 0; 10627 10628 if (data_len < alloc_len) { 10629 ctsio->residual = alloc_len - data_len; 10630 ctsio->kern_data_len = data_len; 10631 ctsio->kern_total_len = data_len; 10632 } else { 10633 ctsio->residual = 0; 10634 ctsio->kern_data_len = alloc_len; 10635 ctsio->kern_total_len = alloc_len; 10636 } 10637 10638 /* 10639 * If we have a LUN configured, report it as connected. Otherwise, 10640 * report that it is offline or no device is supported, depending 10641 * on the value of inquiry_pq_no_lun. 10642 * 10643 * According to the spec (SPC-4 r34), the peripheral qualifier 10644 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10645 * 10646 * "A peripheral device having the specified peripheral device type 10647 * is not connected to this logical unit. However, the device 10648 * server is capable of supporting the specified peripheral device 10649 * type on this logical unit." 10650 * 10651 * According to the same spec, the peripheral qualifier 10652 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10653 * 10654 * "The device server is not capable of supporting a peripheral 10655 * device on this logical unit. For this peripheral qualifier the 10656 * peripheral device type shall be set to 1Fh. All other peripheral 10657 * device type values are reserved for this peripheral qualifier." 10658 * 10659 * Given the text, it would seem that we probably want to report that 10660 * the LUN is offline here. There is no LUN connected, but we can 10661 * support a LUN at the given LUN number. 10662 * 10663 * In the real world, though, it sounds like things are a little 10664 * different: 10665 * 10666 * - Linux, when presented with a LUN with the offline peripheral 10667 * qualifier, will create an sg driver instance for it. So when 10668 * you attach it to CTL, you wind up with a ton of sg driver 10669 * instances. (One for every LUN that Linux bothered to probe.) 10670 * Linux does this despite the fact that it issues a REPORT LUNs 10671 * to LUN 0 to get the inventory of supported LUNs. 10672 * 10673 * - There is other anecdotal evidence (from Emulex folks) about 10674 * arrays that use the offline peripheral qualifier for LUNs that 10675 * are on the "passive" path in an active/passive array. 10676 * 10677 * So the solution is provide a hopefully reasonable default 10678 * (return bad/no LUN) and allow the user to change the behavior 10679 * with a tunable/sysctl variable. 10680 */ 10681 if (lun != NULL) 10682 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10683 lun->be_lun->lun_type; 10684 else if (ctl_softc->inquiry_pq_no_lun == 0) 10685 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10686 else 10687 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10688 10689 /* RMB in byte 2 is 0 */ 10690 inq_ptr->version = SCSI_REV_SPC4; 10691 10692 /* 10693 * According to SAM-3, even if a device only supports a single 10694 * level of LUN addressing, it should still set the HISUP bit: 10695 * 10696 * 4.9.1 Logical unit numbers overview 10697 * 10698 * All logical unit number formats described in this standard are 10699 * hierarchical in structure even when only a single level in that 10700 * hierarchy is used. The HISUP bit shall be set to one in the 10701 * standard INQUIRY data (see SPC-2) when any logical unit number 10702 * format described in this standard is used. Non-hierarchical 10703 * formats are outside the scope of this standard. 10704 * 10705 * Therefore we set the HiSup bit here. 10706 * 10707 * The reponse format is 2, per SPC-3. 10708 */ 10709 inq_ptr->response_format = SID_HiSup | 2; 10710 10711 inq_ptr->additional_length = data_len - 10712 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10713 CTL_DEBUG_PRINT(("additional_length = %d\n", 10714 inq_ptr->additional_length)); 10715 10716 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10717 /* 16 bit addressing */ 10718 if (port_type == CTL_PORT_SCSI) 10719 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10720 /* XXX set the SID_MultiP bit here if we're actually going to 10721 respond on multiple ports */ 10722 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10723 10724 /* 16 bit data bus, synchronous transfers */ 10725 if (port_type == CTL_PORT_SCSI) 10726 inq_ptr->flags = SID_WBus16 | SID_Sync; 10727 /* 10728 * XXX KDM do we want to support tagged queueing on the control 10729 * device at all? 10730 */ 10731 if ((lun == NULL) 10732 || (lun->be_lun->lun_type != T_PROCESSOR)) 10733 inq_ptr->flags |= SID_CmdQue; 10734 /* 10735 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10736 * We have 8 bytes for the vendor name, and 16 bytes for the device 10737 * name and 4 bytes for the revision. 10738 */ 10739 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10740 "vendor")) == NULL) { 10741 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10742 } else { 10743 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10744 strncpy(inq_ptr->vendor, val, 10745 min(sizeof(inq_ptr->vendor), strlen(val))); 10746 } 10747 if (lun == NULL) { 10748 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10749 sizeof(inq_ptr->product)); 10750 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10751 switch (lun->be_lun->lun_type) { 10752 case T_DIRECT: 10753 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10754 sizeof(inq_ptr->product)); 10755 break; 10756 case T_PROCESSOR: 10757 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10758 sizeof(inq_ptr->product)); 10759 break; 10760 default: 10761 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10762 sizeof(inq_ptr->product)); 10763 break; 10764 } 10765 } else { 10766 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10767 strncpy(inq_ptr->product, val, 10768 min(sizeof(inq_ptr->product), strlen(val))); 10769 } 10770 10771 /* 10772 * XXX make this a macro somewhere so it automatically gets 10773 * incremented when we make changes. 10774 */ 10775 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10776 "revision")) == NULL) { 10777 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10778 } else { 10779 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10780 strncpy(inq_ptr->revision, val, 10781 min(sizeof(inq_ptr->revision), strlen(val))); 10782 } 10783 10784 /* 10785 * For parallel SCSI, we support double transition and single 10786 * transition clocking. We also support QAS (Quick Arbitration 10787 * and Selection) and Information Unit transfers on both the 10788 * control and array devices. 10789 */ 10790 if (port_type == CTL_PORT_SCSI) 10791 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10792 SID_SPI_IUS; 10793 10794 /* SAM-5 (no version claimed) */ 10795 scsi_ulto2b(0x00A0, inq_ptr->version1); 10796 /* SPC-4 (no version claimed) */ 10797 scsi_ulto2b(0x0460, inq_ptr->version2); 10798 if (port_type == CTL_PORT_FC) { 10799 /* FCP-2 ANSI INCITS.350:2003 */ 10800 scsi_ulto2b(0x0917, inq_ptr->version3); 10801 } else if (port_type == CTL_PORT_SCSI) { 10802 /* SPI-4 ANSI INCITS.362:200x */ 10803 scsi_ulto2b(0x0B56, inq_ptr->version3); 10804 } else if (port_type == CTL_PORT_ISCSI) { 10805 /* iSCSI (no version claimed) */ 10806 scsi_ulto2b(0x0960, inq_ptr->version3); 10807 } else if (port_type == CTL_PORT_SAS) { 10808 /* SAS (no version claimed) */ 10809 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10810 } 10811 10812 if (lun == NULL) { 10813 /* SBC-4 (no version claimed) */ 10814 scsi_ulto2b(0x0600, inq_ptr->version4); 10815 } else { 10816 switch (lun->be_lun->lun_type) { 10817 case T_DIRECT: 10818 /* SBC-4 (no version claimed) */ 10819 scsi_ulto2b(0x0600, inq_ptr->version4); 10820 break; 10821 case T_PROCESSOR: 10822 default: 10823 break; 10824 } 10825 } 10826 10827 ctsio->scsi_status = SCSI_STATUS_OK; 10828 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10829 ctsio->be_move_done = ctl_config_move_done; 10830 ctl_datamove((union ctl_io *)ctsio); 10831 return (CTL_RETVAL_COMPLETE); 10832} 10833 10834int 10835ctl_inquiry(struct ctl_scsiio *ctsio) 10836{ 10837 struct scsi_inquiry *cdb; 10838 int retval; 10839 10840 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10841 10842 cdb = (struct scsi_inquiry *)ctsio->cdb; 10843 if (cdb->byte2 & SI_EVPD) 10844 retval = ctl_inquiry_evpd(ctsio); 10845 else if (cdb->page_code == 0) 10846 retval = ctl_inquiry_std(ctsio); 10847 else { 10848 ctl_set_invalid_field(ctsio, 10849 /*sks_valid*/ 1, 10850 /*command*/ 1, 10851 /*field*/ 2, 10852 /*bit_valid*/ 0, 10853 /*bit*/ 0); 10854 ctl_done((union ctl_io *)ctsio); 10855 return (CTL_RETVAL_COMPLETE); 10856 } 10857 10858 return (retval); 10859} 10860 10861/* 10862 * For known CDB types, parse the LBA and length. 10863 */ 10864static int 10865ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10866{ 10867 if (io->io_hdr.io_type != CTL_IO_SCSI) 10868 return (1); 10869 10870 switch (io->scsiio.cdb[0]) { 10871 case COMPARE_AND_WRITE: { 10872 struct scsi_compare_and_write *cdb; 10873 10874 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10875 10876 *lba = scsi_8btou64(cdb->addr); 10877 *len = cdb->length; 10878 break; 10879 } 10880 case READ_6: 10881 case WRITE_6: { 10882 struct scsi_rw_6 *cdb; 10883 10884 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10885 10886 *lba = scsi_3btoul(cdb->addr); 10887 /* only 5 bits are valid in the most significant address byte */ 10888 *lba &= 0x1fffff; 10889 *len = cdb->length; 10890 break; 10891 } 10892 case READ_10: 10893 case WRITE_10: { 10894 struct scsi_rw_10 *cdb; 10895 10896 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10897 10898 *lba = scsi_4btoul(cdb->addr); 10899 *len = scsi_2btoul(cdb->length); 10900 break; 10901 } 10902 case WRITE_VERIFY_10: { 10903 struct scsi_write_verify_10 *cdb; 10904 10905 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10906 10907 *lba = scsi_4btoul(cdb->addr); 10908 *len = scsi_2btoul(cdb->length); 10909 break; 10910 } 10911 case READ_12: 10912 case WRITE_12: { 10913 struct scsi_rw_12 *cdb; 10914 10915 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10916 10917 *lba = scsi_4btoul(cdb->addr); 10918 *len = scsi_4btoul(cdb->length); 10919 break; 10920 } 10921 case WRITE_VERIFY_12: { 10922 struct scsi_write_verify_12 *cdb; 10923 10924 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10925 10926 *lba = scsi_4btoul(cdb->addr); 10927 *len = scsi_4btoul(cdb->length); 10928 break; 10929 } 10930 case READ_16: 10931 case WRITE_16: 10932 case WRITE_ATOMIC_16: { 10933 struct scsi_rw_16 *cdb; 10934 10935 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10936 10937 *lba = scsi_8btou64(cdb->addr); 10938 *len = scsi_4btoul(cdb->length); 10939 break; 10940 } 10941 case WRITE_VERIFY_16: { 10942 struct scsi_write_verify_16 *cdb; 10943 10944 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10945 10946 *lba = scsi_8btou64(cdb->addr); 10947 *len = scsi_4btoul(cdb->length); 10948 break; 10949 } 10950 case WRITE_SAME_10: { 10951 struct scsi_write_same_10 *cdb; 10952 10953 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10954 10955 *lba = scsi_4btoul(cdb->addr); 10956 *len = scsi_2btoul(cdb->length); 10957 break; 10958 } 10959 case WRITE_SAME_16: { 10960 struct scsi_write_same_16 *cdb; 10961 10962 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10963 10964 *lba = scsi_8btou64(cdb->addr); 10965 *len = scsi_4btoul(cdb->length); 10966 break; 10967 } 10968 case VERIFY_10: { 10969 struct scsi_verify_10 *cdb; 10970 10971 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10972 10973 *lba = scsi_4btoul(cdb->addr); 10974 *len = scsi_2btoul(cdb->length); 10975 break; 10976 } 10977 case VERIFY_12: { 10978 struct scsi_verify_12 *cdb; 10979 10980 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10981 10982 *lba = scsi_4btoul(cdb->addr); 10983 *len = scsi_4btoul(cdb->length); 10984 break; 10985 } 10986 case VERIFY_16: { 10987 struct scsi_verify_16 *cdb; 10988 10989 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10990 10991 *lba = scsi_8btou64(cdb->addr); 10992 *len = scsi_4btoul(cdb->length); 10993 break; 10994 } 10995 case UNMAP: { 10996 *lba = 0; 10997 *len = UINT64_MAX; 10998 break; 10999 } 11000 default: 11001 return (1); 11002 break; /* NOTREACHED */ 11003 } 11004 11005 return (0); 11006} 11007 11008static ctl_action 11009ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 11010{ 11011 uint64_t endlba1, endlba2; 11012 11013 endlba1 = lba1 + len1 - 1; 11014 endlba2 = lba2 + len2 - 1; 11015 11016 if ((endlba1 < lba2) 11017 || (endlba2 < lba1)) 11018 return (CTL_ACTION_PASS); 11019 else 11020 return (CTL_ACTION_BLOCK); 11021} 11022 11023static int 11024ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 11025{ 11026 struct ctl_ptr_len_flags *ptrlen; 11027 struct scsi_unmap_desc *buf, *end, *range; 11028 uint64_t lba; 11029 uint32_t len; 11030 11031 /* If not UNMAP -- go other way. */ 11032 if (io->io_hdr.io_type != CTL_IO_SCSI || 11033 io->scsiio.cdb[0] != UNMAP) 11034 return (CTL_ACTION_ERROR); 11035 11036 /* If UNMAP without data -- block and wait for data. */ 11037 ptrlen = (struct ctl_ptr_len_flags *) 11038 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 11039 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 11040 ptrlen->ptr == NULL) 11041 return (CTL_ACTION_BLOCK); 11042 11043 /* UNMAP with data -- check for collision. */ 11044 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 11045 end = buf + ptrlen->len / sizeof(*buf); 11046 for (range = buf; range < end; range++) { 11047 lba = scsi_8btou64(range->lba); 11048 len = scsi_4btoul(range->length); 11049 if ((lba < lba2 + len2) && (lba + len > lba2)) 11050 return (CTL_ACTION_BLOCK); 11051 } 11052 return (CTL_ACTION_PASS); 11053} 11054 11055static ctl_action 11056ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 11057{ 11058 uint64_t lba1, lba2; 11059 uint64_t len1, len2; 11060 int retval; 11061 11062 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 11063 return (CTL_ACTION_ERROR); 11064 11065 retval = ctl_extent_check_unmap(io2, lba1, len1); 11066 if (retval != CTL_ACTION_ERROR) 11067 return (retval); 11068 11069 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 11070 return (CTL_ACTION_ERROR); 11071 11072 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 11073} 11074 11075static ctl_action 11076ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 11077 union ctl_io *ooa_io) 11078{ 11079 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11080 ctl_serialize_action *serialize_row; 11081 11082 /* 11083 * The initiator attempted multiple untagged commands at the same 11084 * time. Can't do that. 11085 */ 11086 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11087 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11088 && ((pending_io->io_hdr.nexus.targ_port == 11089 ooa_io->io_hdr.nexus.targ_port) 11090 && (pending_io->io_hdr.nexus.initid.id == 11091 ooa_io->io_hdr.nexus.initid.id)) 11092 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11093 return (CTL_ACTION_OVERLAP); 11094 11095 /* 11096 * The initiator attempted to send multiple tagged commands with 11097 * the same ID. (It's fine if different initiators have the same 11098 * tag ID.) 11099 * 11100 * Even if all of those conditions are true, we don't kill the I/O 11101 * if the command ahead of us has been aborted. We won't end up 11102 * sending it to the FETD, and it's perfectly legal to resend a 11103 * command with the same tag number as long as the previous 11104 * instance of this tag number has been aborted somehow. 11105 */ 11106 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11107 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11108 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11109 && ((pending_io->io_hdr.nexus.targ_port == 11110 ooa_io->io_hdr.nexus.targ_port) 11111 && (pending_io->io_hdr.nexus.initid.id == 11112 ooa_io->io_hdr.nexus.initid.id)) 11113 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11114 return (CTL_ACTION_OVERLAP_TAG); 11115 11116 /* 11117 * If we get a head of queue tag, SAM-3 says that we should 11118 * immediately execute it. 11119 * 11120 * What happens if this command would normally block for some other 11121 * reason? e.g. a request sense with a head of queue tag 11122 * immediately after a write. Normally that would block, but this 11123 * will result in its getting executed immediately... 11124 * 11125 * We currently return "pass" instead of "skip", so we'll end up 11126 * going through the rest of the queue to check for overlapped tags. 11127 * 11128 * XXX KDM check for other types of blockage first?? 11129 */ 11130 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11131 return (CTL_ACTION_PASS); 11132 11133 /* 11134 * Ordered tags have to block until all items ahead of them 11135 * have completed. If we get called with an ordered tag, we always 11136 * block, if something else is ahead of us in the queue. 11137 */ 11138 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11139 return (CTL_ACTION_BLOCK); 11140 11141 /* 11142 * Simple tags get blocked until all head of queue and ordered tags 11143 * ahead of them have completed. I'm lumping untagged commands in 11144 * with simple tags here. XXX KDM is that the right thing to do? 11145 */ 11146 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11147 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11148 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11149 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11150 return (CTL_ACTION_BLOCK); 11151 11152 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11153 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11154 11155 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11156 11157 switch (serialize_row[pending_entry->seridx]) { 11158 case CTL_SER_BLOCK: 11159 return (CTL_ACTION_BLOCK); 11160 case CTL_SER_EXTENT: 11161 return (ctl_extent_check(pending_io, ooa_io)); 11162 case CTL_SER_EXTENTOPT: 11163 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11164 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11165 return (ctl_extent_check(pending_io, ooa_io)); 11166 /* FALLTHROUGH */ 11167 case CTL_SER_PASS: 11168 return (CTL_ACTION_PASS); 11169 case CTL_SER_BLOCKOPT: 11170 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11171 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11172 return (CTL_ACTION_BLOCK); 11173 return (CTL_ACTION_PASS); 11174 case CTL_SER_SKIP: 11175 return (CTL_ACTION_SKIP); 11176 default: 11177 panic("invalid serialization value %d", 11178 serialize_row[pending_entry->seridx]); 11179 } 11180 11181 return (CTL_ACTION_ERROR); 11182} 11183 11184/* 11185 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11186 * Assumptions: 11187 * - pending_io is generally either incoming, or on the blocked queue 11188 * - starting I/O is the I/O we want to start the check with. 11189 */ 11190static ctl_action 11191ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11192 union ctl_io *starting_io) 11193{ 11194 union ctl_io *ooa_io; 11195 ctl_action action; 11196 11197 mtx_assert(&lun->lun_lock, MA_OWNED); 11198 11199 /* 11200 * Run back along the OOA queue, starting with the current 11201 * blocked I/O and going through every I/O before it on the 11202 * queue. If starting_io is NULL, we'll just end up returning 11203 * CTL_ACTION_PASS. 11204 */ 11205 for (ooa_io = starting_io; ooa_io != NULL; 11206 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11207 ooa_links)){ 11208 11209 /* 11210 * This routine just checks to see whether 11211 * cur_blocked is blocked by ooa_io, which is ahead 11212 * of it in the queue. It doesn't queue/dequeue 11213 * cur_blocked. 11214 */ 11215 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11216 switch (action) { 11217 case CTL_ACTION_BLOCK: 11218 case CTL_ACTION_OVERLAP: 11219 case CTL_ACTION_OVERLAP_TAG: 11220 case CTL_ACTION_SKIP: 11221 case CTL_ACTION_ERROR: 11222 return (action); 11223 break; /* NOTREACHED */ 11224 case CTL_ACTION_PASS: 11225 break; 11226 default: 11227 panic("invalid action %d", action); 11228 break; /* NOTREACHED */ 11229 } 11230 } 11231 11232 return (CTL_ACTION_PASS); 11233} 11234 11235/* 11236 * Assumptions: 11237 * - An I/O has just completed, and has been removed from the per-LUN OOA 11238 * queue, so some items on the blocked queue may now be unblocked. 11239 */ 11240static int 11241ctl_check_blocked(struct ctl_lun *lun) 11242{ 11243 union ctl_io *cur_blocked, *next_blocked; 11244 11245 mtx_assert(&lun->lun_lock, MA_OWNED); 11246 11247 /* 11248 * Run forward from the head of the blocked queue, checking each 11249 * entry against the I/Os prior to it on the OOA queue to see if 11250 * there is still any blockage. 11251 * 11252 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11253 * with our removing a variable on it while it is traversing the 11254 * list. 11255 */ 11256 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11257 cur_blocked != NULL; cur_blocked = next_blocked) { 11258 union ctl_io *prev_ooa; 11259 ctl_action action; 11260 11261 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11262 blocked_links); 11263 11264 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11265 ctl_ooaq, ooa_links); 11266 11267 /* 11268 * If cur_blocked happens to be the first item in the OOA 11269 * queue now, prev_ooa will be NULL, and the action 11270 * returned will just be CTL_ACTION_PASS. 11271 */ 11272 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11273 11274 switch (action) { 11275 case CTL_ACTION_BLOCK: 11276 /* Nothing to do here, still blocked */ 11277 break; 11278 case CTL_ACTION_OVERLAP: 11279 case CTL_ACTION_OVERLAP_TAG: 11280 /* 11281 * This shouldn't happen! In theory we've already 11282 * checked this command for overlap... 11283 */ 11284 break; 11285 case CTL_ACTION_PASS: 11286 case CTL_ACTION_SKIP: { 11287 struct ctl_softc *softc; 11288 const struct ctl_cmd_entry *entry; 11289 uint32_t initidx; 11290 int isc_retval; 11291 11292 /* 11293 * The skip case shouldn't happen, this transaction 11294 * should have never made it onto the blocked queue. 11295 */ 11296 /* 11297 * This I/O is no longer blocked, we can remove it 11298 * from the blocked queue. Since this is a TAILQ 11299 * (doubly linked list), we can do O(1) removals 11300 * from any place on the list. 11301 */ 11302 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11303 blocked_links); 11304 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11305 11306 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11307 /* 11308 * Need to send IO back to original side to 11309 * run 11310 */ 11311 union ctl_ha_msg msg_info; 11312 11313 msg_info.hdr.original_sc = 11314 cur_blocked->io_hdr.original_sc; 11315 msg_info.hdr.serializing_sc = cur_blocked; 11316 msg_info.hdr.msg_type = CTL_MSG_R2R; 11317 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11318 &msg_info, sizeof(msg_info), 0)) > 11319 CTL_HA_STATUS_SUCCESS) { 11320 printf("CTL:Check Blocked error from " 11321 "ctl_ha_msg_send %d\n", 11322 isc_retval); 11323 } 11324 break; 11325 } 11326 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11327 softc = control_softc; 11328 11329 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11330 11331 /* 11332 * Check this I/O for LUN state changes that may 11333 * have happened while this command was blocked. 11334 * The LUN state may have been changed by a command 11335 * ahead of us in the queue, so we need to re-check 11336 * for any states that can be caused by SCSI 11337 * commands. 11338 */ 11339 if (ctl_scsiio_lun_check(softc, lun, entry, 11340 &cur_blocked->scsiio) == 0) { 11341 cur_blocked->io_hdr.flags |= 11342 CTL_FLAG_IS_WAS_ON_RTR; 11343 ctl_enqueue_rtr(cur_blocked); 11344 } else 11345 ctl_done(cur_blocked); 11346 break; 11347 } 11348 default: 11349 /* 11350 * This probably shouldn't happen -- we shouldn't 11351 * get CTL_ACTION_ERROR, or anything else. 11352 */ 11353 break; 11354 } 11355 } 11356 11357 return (CTL_RETVAL_COMPLETE); 11358} 11359 11360/* 11361 * This routine (with one exception) checks LUN flags that can be set by 11362 * commands ahead of us in the OOA queue. These flags have to be checked 11363 * when a command initially comes in, and when we pull a command off the 11364 * blocked queue and are preparing to execute it. The reason we have to 11365 * check these flags for commands on the blocked queue is that the LUN 11366 * state may have been changed by a command ahead of us while we're on the 11367 * blocked queue. 11368 * 11369 * Ordering is somewhat important with these checks, so please pay 11370 * careful attention to the placement of any new checks. 11371 */ 11372static int 11373ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11374 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11375{ 11376 int retval; 11377 uint32_t residx; 11378 11379 retval = 0; 11380 11381 mtx_assert(&lun->lun_lock, MA_OWNED); 11382 11383 /* 11384 * If this shelf is a secondary shelf controller, we have to reject 11385 * any media access commands. 11386 */ 11387#if 0 11388 /* No longer needed for HA */ 11389 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11390 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11391 ctl_set_lun_standby(ctsio); 11392 retval = 1; 11393 goto bailout; 11394 } 11395#endif 11396 11397 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11398 if (lun->flags & CTL_LUN_READONLY) { 11399 ctl_set_sense(ctsio, /*current_error*/ 1, 11400 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11401 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11402 retval = 1; 11403 goto bailout; 11404 } 11405 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11406 .eca_and_aen & SCP_SWP) != 0) { 11407 ctl_set_sense(ctsio, /*current_error*/ 1, 11408 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11409 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11410 retval = 1; 11411 goto bailout; 11412 } 11413 } 11414 11415 /* 11416 * Check for a reservation conflict. If this command isn't allowed 11417 * even on reserved LUNs, and if this initiator isn't the one who 11418 * reserved us, reject the command with a reservation conflict. 11419 */ 11420 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11421 if ((lun->flags & CTL_LUN_RESERVED) 11422 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11423 if (lun->res_idx != residx) { 11424 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11425 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11426 retval = 1; 11427 goto bailout; 11428 } 11429 } 11430 11431 if ((lun->flags & CTL_LUN_PR_RESERVED) 11432 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11433 /* 11434 * if we aren't registered or it's a res holder type 11435 * reservation and this isn't the res holder then set a 11436 * conflict. 11437 * NOTE: Commands which might be allowed on write exclusive 11438 * type reservations are checked in the particular command 11439 * for a conflict. Read and SSU are the only ones. 11440 */ 11441 if (lun->pr_keys[residx] == 0 11442 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11443 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11444 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11445 retval = 1; 11446 goto bailout; 11447 } 11448 11449 } 11450 11451 if ((lun->flags & CTL_LUN_OFFLINE) 11452 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11453 ctl_set_lun_not_ready(ctsio); 11454 retval = 1; 11455 goto bailout; 11456 } 11457 11458 /* 11459 * If the LUN is stopped, see if this particular command is allowed 11460 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11461 */ 11462 if ((lun->flags & CTL_LUN_STOPPED) 11463 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11464 /* "Logical unit not ready, initializing cmd. required" */ 11465 ctl_set_lun_stopped(ctsio); 11466 retval = 1; 11467 goto bailout; 11468 } 11469 11470 if ((lun->flags & CTL_LUN_INOPERABLE) 11471 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11472 /* "Medium format corrupted" */ 11473 ctl_set_medium_format_corrupted(ctsio); 11474 retval = 1; 11475 goto bailout; 11476 } 11477 11478bailout: 11479 return (retval); 11480 11481} 11482 11483static void 11484ctl_failover_io(union ctl_io *io, int have_lock) 11485{ 11486 ctl_set_busy(&io->scsiio); 11487 ctl_done(io); 11488} 11489 11490static void 11491ctl_failover(void) 11492{ 11493 struct ctl_lun *lun; 11494 struct ctl_softc *ctl_softc; 11495 union ctl_io *next_io, *pending_io; 11496 union ctl_io *io; 11497 int lun_idx; 11498 int i; 11499 11500 ctl_softc = control_softc; 11501 11502 mtx_lock(&ctl_softc->ctl_lock); 11503 /* 11504 * Remove any cmds from the other SC from the rtr queue. These 11505 * will obviously only be for LUNs for which we're the primary. 11506 * We can't send status or get/send data for these commands. 11507 * Since they haven't been executed yet, we can just remove them. 11508 * We'll either abort them or delete them below, depending on 11509 * which HA mode we're in. 11510 */ 11511#ifdef notyet 11512 mtx_lock(&ctl_softc->queue_lock); 11513 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11514 io != NULL; io = next_io) { 11515 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11516 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11517 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11518 ctl_io_hdr, links); 11519 } 11520 mtx_unlock(&ctl_softc->queue_lock); 11521#endif 11522 11523 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11524 lun = ctl_softc->ctl_luns[lun_idx]; 11525 if (lun==NULL) 11526 continue; 11527 11528 /* 11529 * Processor LUNs are primary on both sides. 11530 * XXX will this always be true? 11531 */ 11532 if (lun->be_lun->lun_type == T_PROCESSOR) 11533 continue; 11534 11535 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11536 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11537 printf("FAILOVER: primary lun %d\n", lun_idx); 11538 /* 11539 * Remove all commands from the other SC. First from the 11540 * blocked queue then from the ooa queue. Once we have 11541 * removed them. Call ctl_check_blocked to see if there 11542 * is anything that can run. 11543 */ 11544 for (io = (union ctl_io *)TAILQ_FIRST( 11545 &lun->blocked_queue); io != NULL; io = next_io) { 11546 11547 next_io = (union ctl_io *)TAILQ_NEXT( 11548 &io->io_hdr, blocked_links); 11549 11550 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11551 TAILQ_REMOVE(&lun->blocked_queue, 11552 &io->io_hdr,blocked_links); 11553 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11554 TAILQ_REMOVE(&lun->ooa_queue, 11555 &io->io_hdr, ooa_links); 11556 11557 ctl_free_io(io); 11558 } 11559 } 11560 11561 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11562 io != NULL; io = next_io) { 11563 11564 next_io = (union ctl_io *)TAILQ_NEXT( 11565 &io->io_hdr, ooa_links); 11566 11567 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11568 11569 TAILQ_REMOVE(&lun->ooa_queue, 11570 &io->io_hdr, 11571 ooa_links); 11572 11573 ctl_free_io(io); 11574 } 11575 } 11576 ctl_check_blocked(lun); 11577 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11578 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11579 11580 printf("FAILOVER: primary lun %d\n", lun_idx); 11581 /* 11582 * Abort all commands from the other SC. We can't 11583 * send status back for them now. These should get 11584 * cleaned up when they are completed or come out 11585 * for a datamove operation. 11586 */ 11587 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11588 io != NULL; io = next_io) { 11589 next_io = (union ctl_io *)TAILQ_NEXT( 11590 &io->io_hdr, ooa_links); 11591 11592 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11593 io->io_hdr.flags |= CTL_FLAG_ABORT; 11594 } 11595 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11596 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11597 11598 printf("FAILOVER: secondary lun %d\n", lun_idx); 11599 11600 lun->flags |= CTL_LUN_PRIMARY_SC; 11601 11602 /* 11603 * We send all I/O that was sent to this controller 11604 * and redirected to the other side back with 11605 * busy status, and have the initiator retry it. 11606 * Figuring out how much data has been transferred, 11607 * etc. and picking up where we left off would be 11608 * very tricky. 11609 * 11610 * XXX KDM need to remove I/O from the blocked 11611 * queue as well! 11612 */ 11613 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11614 &lun->ooa_queue); pending_io != NULL; 11615 pending_io = next_io) { 11616 11617 next_io = (union ctl_io *)TAILQ_NEXT( 11618 &pending_io->io_hdr, ooa_links); 11619 11620 pending_io->io_hdr.flags &= 11621 ~CTL_FLAG_SENT_2OTHER_SC; 11622 11623 if (pending_io->io_hdr.flags & 11624 CTL_FLAG_IO_ACTIVE) { 11625 pending_io->io_hdr.flags |= 11626 CTL_FLAG_FAILOVER; 11627 } else { 11628 ctl_set_busy(&pending_io->scsiio); 11629 ctl_done(pending_io); 11630 } 11631 } 11632 11633 /* 11634 * Build Unit Attention 11635 */ 11636 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11637 lun->pending_ua[i] |= 11638 CTL_UA_ASYM_ACC_CHANGE; 11639 } 11640 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11641 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11642 printf("FAILOVER: secondary lun %d\n", lun_idx); 11643 /* 11644 * if the first io on the OOA is not on the RtR queue 11645 * add it. 11646 */ 11647 lun->flags |= CTL_LUN_PRIMARY_SC; 11648 11649 pending_io = (union ctl_io *)TAILQ_FIRST( 11650 &lun->ooa_queue); 11651 if (pending_io==NULL) { 11652 printf("Nothing on OOA queue\n"); 11653 continue; 11654 } 11655 11656 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11657 if ((pending_io->io_hdr.flags & 11658 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11659 pending_io->io_hdr.flags |= 11660 CTL_FLAG_IS_WAS_ON_RTR; 11661 ctl_enqueue_rtr(pending_io); 11662 } 11663#if 0 11664 else 11665 { 11666 printf("Tag 0x%04x is running\n", 11667 pending_io->scsiio.tag_num); 11668 } 11669#endif 11670 11671 next_io = (union ctl_io *)TAILQ_NEXT( 11672 &pending_io->io_hdr, ooa_links); 11673 for (pending_io=next_io; pending_io != NULL; 11674 pending_io = next_io) { 11675 pending_io->io_hdr.flags &= 11676 ~CTL_FLAG_SENT_2OTHER_SC; 11677 next_io = (union ctl_io *)TAILQ_NEXT( 11678 &pending_io->io_hdr, ooa_links); 11679 if (pending_io->io_hdr.flags & 11680 CTL_FLAG_IS_WAS_ON_RTR) { 11681#if 0 11682 printf("Tag 0x%04x is running\n", 11683 pending_io->scsiio.tag_num); 11684#endif 11685 continue; 11686 } 11687 11688 switch (ctl_check_ooa(lun, pending_io, 11689 (union ctl_io *)TAILQ_PREV( 11690 &pending_io->io_hdr, ctl_ooaq, 11691 ooa_links))) { 11692 11693 case CTL_ACTION_BLOCK: 11694 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11695 &pending_io->io_hdr, 11696 blocked_links); 11697 pending_io->io_hdr.flags |= 11698 CTL_FLAG_BLOCKED; 11699 break; 11700 case CTL_ACTION_PASS: 11701 case CTL_ACTION_SKIP: 11702 pending_io->io_hdr.flags |= 11703 CTL_FLAG_IS_WAS_ON_RTR; 11704 ctl_enqueue_rtr(pending_io); 11705 break; 11706 case CTL_ACTION_OVERLAP: 11707 ctl_set_overlapped_cmd( 11708 (struct ctl_scsiio *)pending_io); 11709 ctl_done(pending_io); 11710 break; 11711 case CTL_ACTION_OVERLAP_TAG: 11712 ctl_set_overlapped_tag( 11713 (struct ctl_scsiio *)pending_io, 11714 pending_io->scsiio.tag_num & 0xff); 11715 ctl_done(pending_io); 11716 break; 11717 case CTL_ACTION_ERROR: 11718 default: 11719 ctl_set_internal_failure( 11720 (struct ctl_scsiio *)pending_io, 11721 0, // sks_valid 11722 0); //retry count 11723 ctl_done(pending_io); 11724 break; 11725 } 11726 } 11727 11728 /* 11729 * Build Unit Attention 11730 */ 11731 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11732 lun->pending_ua[i] |= 11733 CTL_UA_ASYM_ACC_CHANGE; 11734 } 11735 } else { 11736 panic("Unhandled HA mode failover, LUN flags = %#x, " 11737 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11738 } 11739 } 11740 ctl_pause_rtr = 0; 11741 mtx_unlock(&ctl_softc->ctl_lock); 11742} 11743 11744static int 11745ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11746{ 11747 struct ctl_lun *lun; 11748 const struct ctl_cmd_entry *entry; 11749 uint32_t initidx, targ_lun; 11750 int retval; 11751 11752 retval = 0; 11753 11754 lun = NULL; 11755 11756 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11757 if ((targ_lun < CTL_MAX_LUNS) 11758 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11759 lun = ctl_softc->ctl_luns[targ_lun]; 11760 /* 11761 * If the LUN is invalid, pretend that it doesn't exist. 11762 * It will go away as soon as all pending I/O has been 11763 * completed. 11764 */ 11765 if (lun->flags & CTL_LUN_DISABLED) { 11766 lun = NULL; 11767 } else { 11768 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11769 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11770 lun->be_lun; 11771 if (lun->be_lun->lun_type == T_PROCESSOR) { 11772 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11773 } 11774 11775 /* 11776 * Every I/O goes into the OOA queue for a 11777 * particular LUN, and stays there until completion. 11778 */ 11779 mtx_lock(&lun->lun_lock); 11780 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11781 ooa_links); 11782 } 11783 } else { 11784 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11785 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11786 } 11787 11788 /* Get command entry and return error if it is unsuppotyed. */ 11789 entry = ctl_validate_command(ctsio); 11790 if (entry == NULL) { 11791 if (lun) 11792 mtx_unlock(&lun->lun_lock); 11793 return (retval); 11794 } 11795 11796 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11797 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11798 11799 /* 11800 * Check to see whether we can send this command to LUNs that don't 11801 * exist. This should pretty much only be the case for inquiry 11802 * and request sense. Further checks, below, really require having 11803 * a LUN, so we can't really check the command anymore. Just put 11804 * it on the rtr queue. 11805 */ 11806 if (lun == NULL) { 11807 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11808 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11809 ctl_enqueue_rtr((union ctl_io *)ctsio); 11810 return (retval); 11811 } 11812 11813 ctl_set_unsupported_lun(ctsio); 11814 ctl_done((union ctl_io *)ctsio); 11815 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11816 return (retval); 11817 } else { 11818 /* 11819 * Make sure we support this particular command on this LUN. 11820 * e.g., we don't support writes to the control LUN. 11821 */ 11822 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11823 mtx_unlock(&lun->lun_lock); 11824 ctl_set_invalid_opcode(ctsio); 11825 ctl_done((union ctl_io *)ctsio); 11826 return (retval); 11827 } 11828 } 11829 11830 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11831 11832#ifdef CTL_WITH_CA 11833 /* 11834 * If we've got a request sense, it'll clear the contingent 11835 * allegiance condition. Otherwise, if we have a CA condition for 11836 * this initiator, clear it, because it sent down a command other 11837 * than request sense. 11838 */ 11839 if ((ctsio->cdb[0] != REQUEST_SENSE) 11840 && (ctl_is_set(lun->have_ca, initidx))) 11841 ctl_clear_mask(lun->have_ca, initidx); 11842#endif 11843 11844 /* 11845 * If the command has this flag set, it handles its own unit 11846 * attention reporting, we shouldn't do anything. Otherwise we 11847 * check for any pending unit attentions, and send them back to the 11848 * initiator. We only do this when a command initially comes in, 11849 * not when we pull it off the blocked queue. 11850 * 11851 * According to SAM-3, section 5.3.2, the order that things get 11852 * presented back to the host is basically unit attentions caused 11853 * by some sort of reset event, busy status, reservation conflicts 11854 * or task set full, and finally any other status. 11855 * 11856 * One issue here is that some of the unit attentions we report 11857 * don't fall into the "reset" category (e.g. "reported luns data 11858 * has changed"). So reporting it here, before the reservation 11859 * check, may be technically wrong. I guess the only thing to do 11860 * would be to check for and report the reset events here, and then 11861 * check for the other unit attention types after we check for a 11862 * reservation conflict. 11863 * 11864 * XXX KDM need to fix this 11865 */ 11866 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11867 ctl_ua_type ua_type; 11868 11869 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11870 scsi_sense_data_type sense_format; 11871 11872 if (lun != NULL) 11873 sense_format = (lun->flags & 11874 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11875 SSD_TYPE_FIXED; 11876 else 11877 sense_format = SSD_TYPE_FIXED; 11878 11879 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11880 &ctsio->sense_data, sense_format); 11881 if (ua_type != CTL_UA_NONE) { 11882 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11883 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11884 CTL_AUTOSENSE; 11885 ctsio->sense_len = SSD_FULL_SIZE; 11886 mtx_unlock(&lun->lun_lock); 11887 ctl_done((union ctl_io *)ctsio); 11888 return (retval); 11889 } 11890 } 11891 } 11892 11893 11894 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11895 mtx_unlock(&lun->lun_lock); 11896 ctl_done((union ctl_io *)ctsio); 11897 return (retval); 11898 } 11899 11900 /* 11901 * XXX CHD this is where we want to send IO to other side if 11902 * this LUN is secondary on this SC. We will need to make a copy 11903 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11904 * the copy we send as FROM_OTHER. 11905 * We also need to stuff the address of the original IO so we can 11906 * find it easily. Something similar will need be done on the other 11907 * side so when we are done we can find the copy. 11908 */ 11909 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11910 union ctl_ha_msg msg_info; 11911 int isc_retval; 11912 11913 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11914 11915 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11916 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11917#if 0 11918 printf("1. ctsio %p\n", ctsio); 11919#endif 11920 msg_info.hdr.serializing_sc = NULL; 11921 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11922 msg_info.scsi.tag_num = ctsio->tag_num; 11923 msg_info.scsi.tag_type = ctsio->tag_type; 11924 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11925 11926 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11927 11928 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11929 (void *)&msg_info, sizeof(msg_info), 0)) > 11930 CTL_HA_STATUS_SUCCESS) { 11931 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11932 isc_retval); 11933 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11934 } else { 11935#if 0 11936 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11937#endif 11938 } 11939 11940 /* 11941 * XXX KDM this I/O is off the incoming queue, but hasn't 11942 * been inserted on any other queue. We may need to come 11943 * up with a holding queue while we wait for serialization 11944 * so that we have an idea of what we're waiting for from 11945 * the other side. 11946 */ 11947 mtx_unlock(&lun->lun_lock); 11948 return (retval); 11949 } 11950 11951 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11952 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11953 ctl_ooaq, ooa_links))) { 11954 case CTL_ACTION_BLOCK: 11955 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11956 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11957 blocked_links); 11958 mtx_unlock(&lun->lun_lock); 11959 return (retval); 11960 case CTL_ACTION_PASS: 11961 case CTL_ACTION_SKIP: 11962 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11963 mtx_unlock(&lun->lun_lock); 11964 ctl_enqueue_rtr((union ctl_io *)ctsio); 11965 break; 11966 case CTL_ACTION_OVERLAP: 11967 mtx_unlock(&lun->lun_lock); 11968 ctl_set_overlapped_cmd(ctsio); 11969 ctl_done((union ctl_io *)ctsio); 11970 break; 11971 case CTL_ACTION_OVERLAP_TAG: 11972 mtx_unlock(&lun->lun_lock); 11973 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11974 ctl_done((union ctl_io *)ctsio); 11975 break; 11976 case CTL_ACTION_ERROR: 11977 default: 11978 mtx_unlock(&lun->lun_lock); 11979 ctl_set_internal_failure(ctsio, 11980 /*sks_valid*/ 0, 11981 /*retry_count*/ 0); 11982 ctl_done((union ctl_io *)ctsio); 11983 break; 11984 } 11985 return (retval); 11986} 11987 11988const struct ctl_cmd_entry * 11989ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11990{ 11991 const struct ctl_cmd_entry *entry; 11992 int service_action; 11993 11994 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11995 if (sa) 11996 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11997 if (entry->flags & CTL_CMD_FLAG_SA5) { 11998 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11999 entry = &((const struct ctl_cmd_entry *) 12000 entry->execute)[service_action]; 12001 } 12002 return (entry); 12003} 12004 12005const struct ctl_cmd_entry * 12006ctl_validate_command(struct ctl_scsiio *ctsio) 12007{ 12008 const struct ctl_cmd_entry *entry; 12009 int i, sa; 12010 uint8_t diff; 12011 12012 entry = ctl_get_cmd_entry(ctsio, &sa); 12013 if (entry->execute == NULL) { 12014 if (sa) 12015 ctl_set_invalid_field(ctsio, 12016 /*sks_valid*/ 1, 12017 /*command*/ 1, 12018 /*field*/ 1, 12019 /*bit_valid*/ 1, 12020 /*bit*/ 4); 12021 else 12022 ctl_set_invalid_opcode(ctsio); 12023 ctl_done((union ctl_io *)ctsio); 12024 return (NULL); 12025 } 12026 KASSERT(entry->length > 0, 12027 ("Not defined length for command 0x%02x/0x%02x", 12028 ctsio->cdb[0], ctsio->cdb[1])); 12029 for (i = 1; i < entry->length; i++) { 12030 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 12031 if (diff == 0) 12032 continue; 12033 ctl_set_invalid_field(ctsio, 12034 /*sks_valid*/ 1, 12035 /*command*/ 1, 12036 /*field*/ i, 12037 /*bit_valid*/ 1, 12038 /*bit*/ fls(diff) - 1); 12039 ctl_done((union ctl_io *)ctsio); 12040 return (NULL); 12041 } 12042 return (entry); 12043} 12044 12045static int 12046ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 12047{ 12048 12049 switch (lun_type) { 12050 case T_PROCESSOR: 12051 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 12052 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 12053 return (0); 12054 break; 12055 case T_DIRECT: 12056 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 12057 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 12058 return (0); 12059 break; 12060 default: 12061 return (0); 12062 } 12063 return (1); 12064} 12065 12066static int 12067ctl_scsiio(struct ctl_scsiio *ctsio) 12068{ 12069 int retval; 12070 const struct ctl_cmd_entry *entry; 12071 12072 retval = CTL_RETVAL_COMPLETE; 12073 12074 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 12075 12076 entry = ctl_get_cmd_entry(ctsio, NULL); 12077 12078 /* 12079 * If this I/O has been aborted, just send it straight to 12080 * ctl_done() without executing it. 12081 */ 12082 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 12083 ctl_done((union ctl_io *)ctsio); 12084 goto bailout; 12085 } 12086 12087 /* 12088 * All the checks should have been handled by ctl_scsiio_precheck(). 12089 * We should be clear now to just execute the I/O. 12090 */ 12091 retval = entry->execute(ctsio); 12092 12093bailout: 12094 return (retval); 12095} 12096 12097/* 12098 * Since we only implement one target right now, a bus reset simply resets 12099 * our single target. 12100 */ 12101static int 12102ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 12103{ 12104 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 12105} 12106 12107static int 12108ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 12109 ctl_ua_type ua_type) 12110{ 12111 struct ctl_lun *lun; 12112 int retval; 12113 12114 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12115 union ctl_ha_msg msg_info; 12116 12117 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12118 msg_info.hdr.nexus = io->io_hdr.nexus; 12119 if (ua_type==CTL_UA_TARG_RESET) 12120 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 12121 else 12122 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12123 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12124 msg_info.hdr.original_sc = NULL; 12125 msg_info.hdr.serializing_sc = NULL; 12126 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12127 (void *)&msg_info, sizeof(msg_info), 0)) { 12128 } 12129 } 12130 retval = 0; 12131 12132 mtx_lock(&ctl_softc->ctl_lock); 12133 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12134 retval += ctl_lun_reset(lun, io, ua_type); 12135 mtx_unlock(&ctl_softc->ctl_lock); 12136 12137 return (retval); 12138} 12139 12140/* 12141 * The LUN should always be set. The I/O is optional, and is used to 12142 * distinguish between I/Os sent by this initiator, and by other 12143 * initiators. We set unit attention for initiators other than this one. 12144 * SAM-3 is vague on this point. It does say that a unit attention should 12145 * be established for other initiators when a LUN is reset (see section 12146 * 5.7.3), but it doesn't specifically say that the unit attention should 12147 * be established for this particular initiator when a LUN is reset. Here 12148 * is the relevant text, from SAM-3 rev 8: 12149 * 12150 * 5.7.2 When a SCSI initiator port aborts its own tasks 12151 * 12152 * When a SCSI initiator port causes its own task(s) to be aborted, no 12153 * notification that the task(s) have been aborted shall be returned to 12154 * the SCSI initiator port other than the completion response for the 12155 * command or task management function action that caused the task(s) to 12156 * be aborted and notification(s) associated with related effects of the 12157 * action (e.g., a reset unit attention condition). 12158 * 12159 * XXX KDM for now, we're setting unit attention for all initiators. 12160 */ 12161static int 12162ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12163{ 12164 union ctl_io *xio; 12165#if 0 12166 uint32_t initindex; 12167#endif 12168 int i; 12169 12170 mtx_lock(&lun->lun_lock); 12171 /* 12172 * Run through the OOA queue and abort each I/O. 12173 */ 12174#if 0 12175 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12176#endif 12177 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12178 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12179 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12180 } 12181 12182 /* 12183 * This version sets unit attention for every 12184 */ 12185#if 0 12186 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12187 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12188 if (initindex == i) 12189 continue; 12190 lun->pending_ua[i] |= ua_type; 12191 } 12192#endif 12193 12194 /* 12195 * A reset (any kind, really) clears reservations established with 12196 * RESERVE/RELEASE. It does not clear reservations established 12197 * with PERSISTENT RESERVE OUT, but we don't support that at the 12198 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12199 * reservations made with the RESERVE/RELEASE commands, because 12200 * those commands are obsolete in SPC-3. 12201 */ 12202 lun->flags &= ~CTL_LUN_RESERVED; 12203 12204 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12205#ifdef CTL_WITH_CA 12206 ctl_clear_mask(lun->have_ca, i); 12207#endif 12208 lun->pending_ua[i] |= ua_type; 12209 } 12210 mtx_unlock(&lun->lun_lock); 12211 12212 return (0); 12213} 12214 12215static void 12216ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12217 int other_sc) 12218{ 12219 union ctl_io *xio; 12220 12221 mtx_assert(&lun->lun_lock, MA_OWNED); 12222 12223 /* 12224 * Run through the OOA queue and attempt to find the given I/O. 12225 * The target port, initiator ID, tag type and tag number have to 12226 * match the values that we got from the initiator. If we have an 12227 * untagged command to abort, simply abort the first untagged command 12228 * we come to. We only allow one untagged command at a time of course. 12229 */ 12230 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12231 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12232 12233 if ((targ_port == UINT32_MAX || 12234 targ_port == xio->io_hdr.nexus.targ_port) && 12235 (init_id == UINT32_MAX || 12236 init_id == xio->io_hdr.nexus.initid.id)) { 12237 if (targ_port != xio->io_hdr.nexus.targ_port || 12238 init_id != xio->io_hdr.nexus.initid.id) 12239 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12240 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12241 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12242 union ctl_ha_msg msg_info; 12243 12244 msg_info.hdr.nexus = xio->io_hdr.nexus; 12245 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12246 msg_info.task.tag_num = xio->scsiio.tag_num; 12247 msg_info.task.tag_type = xio->scsiio.tag_type; 12248 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12249 msg_info.hdr.original_sc = NULL; 12250 msg_info.hdr.serializing_sc = NULL; 12251 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12252 (void *)&msg_info, sizeof(msg_info), 0); 12253 } 12254 } 12255 } 12256} 12257 12258static int 12259ctl_abort_task_set(union ctl_io *io) 12260{ 12261 struct ctl_softc *softc = control_softc; 12262 struct ctl_lun *lun; 12263 uint32_t targ_lun; 12264 12265 /* 12266 * Look up the LUN. 12267 */ 12268 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12269 mtx_lock(&softc->ctl_lock); 12270 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12271 lun = softc->ctl_luns[targ_lun]; 12272 else { 12273 mtx_unlock(&softc->ctl_lock); 12274 return (1); 12275 } 12276 12277 mtx_lock(&lun->lun_lock); 12278 mtx_unlock(&softc->ctl_lock); 12279 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12280 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12281 io->io_hdr.nexus.initid.id, 12282 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12283 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12284 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12285 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12286 } 12287 mtx_unlock(&lun->lun_lock); 12288 return (0); 12289} 12290 12291static int 12292ctl_i_t_nexus_reset(union ctl_io *io) 12293{ 12294 struct ctl_softc *softc = control_softc; 12295 struct ctl_lun *lun; 12296 uint32_t initindex, residx; 12297 12298 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12299 residx = ctl_get_resindex(&io->io_hdr.nexus); 12300 mtx_lock(&softc->ctl_lock); 12301 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12302 mtx_lock(&lun->lun_lock); 12303 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12304 io->io_hdr.nexus.initid.id, 12305 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12306#ifdef CTL_WITH_CA 12307 ctl_clear_mask(lun->have_ca, initindex); 12308#endif 12309 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12310 lun->flags &= ~CTL_LUN_RESERVED; 12311 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12312 mtx_unlock(&lun->lun_lock); 12313 } 12314 mtx_unlock(&softc->ctl_lock); 12315 return (0); 12316} 12317 12318static int 12319ctl_abort_task(union ctl_io *io) 12320{ 12321 union ctl_io *xio; 12322 struct ctl_lun *lun; 12323 struct ctl_softc *ctl_softc; 12324#if 0 12325 struct sbuf sb; 12326 char printbuf[128]; 12327#endif 12328 int found; 12329 uint32_t targ_lun; 12330 12331 ctl_softc = control_softc; 12332 found = 0; 12333 12334 /* 12335 * Look up the LUN. 12336 */ 12337 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12338 mtx_lock(&ctl_softc->ctl_lock); 12339 if ((targ_lun < CTL_MAX_LUNS) 12340 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12341 lun = ctl_softc->ctl_luns[targ_lun]; 12342 else { 12343 mtx_unlock(&ctl_softc->ctl_lock); 12344 return (1); 12345 } 12346 12347#if 0 12348 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12349 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12350#endif 12351 12352 mtx_lock(&lun->lun_lock); 12353 mtx_unlock(&ctl_softc->ctl_lock); 12354 /* 12355 * Run through the OOA queue and attempt to find the given I/O. 12356 * The target port, initiator ID, tag type and tag number have to 12357 * match the values that we got from the initiator. If we have an 12358 * untagged command to abort, simply abort the first untagged command 12359 * we come to. We only allow one untagged command at a time of course. 12360 */ 12361#if 0 12362 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12363#endif 12364 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12365 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12366#if 0 12367 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12368 12369 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12370 lun->lun, xio->scsiio.tag_num, 12371 xio->scsiio.tag_type, 12372 (xio->io_hdr.blocked_links.tqe_prev 12373 == NULL) ? "" : " BLOCKED", 12374 (xio->io_hdr.flags & 12375 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12376 (xio->io_hdr.flags & 12377 CTL_FLAG_ABORT) ? " ABORT" : "", 12378 (xio->io_hdr.flags & 12379 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12380 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12381 sbuf_finish(&sb); 12382 printf("%s\n", sbuf_data(&sb)); 12383#endif 12384 12385 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12386 && (xio->io_hdr.nexus.initid.id == 12387 io->io_hdr.nexus.initid.id)) { 12388 /* 12389 * If the abort says that the task is untagged, the 12390 * task in the queue must be untagged. Otherwise, 12391 * we just check to see whether the tag numbers 12392 * match. This is because the QLogic firmware 12393 * doesn't pass back the tag type in an abort 12394 * request. 12395 */ 12396#if 0 12397 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12398 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12399 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12400#endif 12401 /* 12402 * XXX KDM we've got problems with FC, because it 12403 * doesn't send down a tag type with aborts. So we 12404 * can only really go by the tag number... 12405 * This may cause problems with parallel SCSI. 12406 * Need to figure that out!! 12407 */ 12408 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12409 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12410 found = 1; 12411 if ((io->io_hdr.flags & 12412 CTL_FLAG_FROM_OTHER_SC) == 0 && 12413 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12414 union ctl_ha_msg msg_info; 12415 12416 io->io_hdr.flags |= 12417 CTL_FLAG_SENT_2OTHER_SC; 12418 msg_info.hdr.nexus = io->io_hdr.nexus; 12419 msg_info.task.task_action = 12420 CTL_TASK_ABORT_TASK; 12421 msg_info.task.tag_num = 12422 io->taskio.tag_num; 12423 msg_info.task.tag_type = 12424 io->taskio.tag_type; 12425 msg_info.hdr.msg_type = 12426 CTL_MSG_MANAGE_TASKS; 12427 msg_info.hdr.original_sc = NULL; 12428 msg_info.hdr.serializing_sc = NULL; 12429#if 0 12430 printf("Sent Abort to other side\n"); 12431#endif 12432 if (CTL_HA_STATUS_SUCCESS != 12433 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12434 (void *)&msg_info, 12435 sizeof(msg_info), 0)) { 12436 } 12437 } 12438#if 0 12439 printf("ctl_abort_task: found I/O to abort\n"); 12440#endif 12441 break; 12442 } 12443 } 12444 } 12445 mtx_unlock(&lun->lun_lock); 12446 12447 if (found == 0) { 12448 /* 12449 * This isn't really an error. It's entirely possible for 12450 * the abort and command completion to cross on the wire. 12451 * This is more of an informative/diagnostic error. 12452 */ 12453#if 0 12454 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12455 "%d:%d:%d:%d tag %d type %d\n", 12456 io->io_hdr.nexus.initid.id, 12457 io->io_hdr.nexus.targ_port, 12458 io->io_hdr.nexus.targ_target.id, 12459 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12460 io->taskio.tag_type); 12461#endif 12462 } 12463 return (0); 12464} 12465 12466static void 12467ctl_run_task(union ctl_io *io) 12468{ 12469 struct ctl_softc *ctl_softc = control_softc; 12470 int retval = 1; 12471 const char *task_desc; 12472 12473 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12474 12475 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12476 ("ctl_run_task: Unextected io_type %d\n", 12477 io->io_hdr.io_type)); 12478 12479 task_desc = ctl_scsi_task_string(&io->taskio); 12480 if (task_desc != NULL) { 12481#ifdef NEEDTOPORT 12482 csevent_log(CSC_CTL | CSC_SHELF_SW | 12483 CTL_TASK_REPORT, 12484 csevent_LogType_Trace, 12485 csevent_Severity_Information, 12486 csevent_AlertLevel_Green, 12487 csevent_FRU_Firmware, 12488 csevent_FRU_Unknown, 12489 "CTL: received task: %s",task_desc); 12490#endif 12491 } else { 12492#ifdef NEEDTOPORT 12493 csevent_log(CSC_CTL | CSC_SHELF_SW | 12494 CTL_TASK_REPORT, 12495 csevent_LogType_Trace, 12496 csevent_Severity_Information, 12497 csevent_AlertLevel_Green, 12498 csevent_FRU_Firmware, 12499 csevent_FRU_Unknown, 12500 "CTL: received unknown task " 12501 "type: %d (%#x)", 12502 io->taskio.task_action, 12503 io->taskio.task_action); 12504#endif 12505 } 12506 switch (io->taskio.task_action) { 12507 case CTL_TASK_ABORT_TASK: 12508 retval = ctl_abort_task(io); 12509 break; 12510 case CTL_TASK_ABORT_TASK_SET: 12511 case CTL_TASK_CLEAR_TASK_SET: 12512 retval = ctl_abort_task_set(io); 12513 break; 12514 case CTL_TASK_CLEAR_ACA: 12515 break; 12516 case CTL_TASK_I_T_NEXUS_RESET: 12517 retval = ctl_i_t_nexus_reset(io); 12518 break; 12519 case CTL_TASK_LUN_RESET: { 12520 struct ctl_lun *lun; 12521 uint32_t targ_lun; 12522 12523 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12524 mtx_lock(&ctl_softc->ctl_lock); 12525 if ((targ_lun < CTL_MAX_LUNS) 12526 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12527 lun = ctl_softc->ctl_luns[targ_lun]; 12528 else { 12529 mtx_unlock(&ctl_softc->ctl_lock); 12530 retval = 1; 12531 break; 12532 } 12533 12534 if (!(io->io_hdr.flags & 12535 CTL_FLAG_FROM_OTHER_SC)) { 12536 union ctl_ha_msg msg_info; 12537 12538 io->io_hdr.flags |= 12539 CTL_FLAG_SENT_2OTHER_SC; 12540 msg_info.hdr.msg_type = 12541 CTL_MSG_MANAGE_TASKS; 12542 msg_info.hdr.nexus = io->io_hdr.nexus; 12543 msg_info.task.task_action = 12544 CTL_TASK_LUN_RESET; 12545 msg_info.hdr.original_sc = NULL; 12546 msg_info.hdr.serializing_sc = NULL; 12547 if (CTL_HA_STATUS_SUCCESS != 12548 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12549 (void *)&msg_info, 12550 sizeof(msg_info), 0)) { 12551 } 12552 } 12553 12554 retval = ctl_lun_reset(lun, io, 12555 CTL_UA_LUN_RESET); 12556 mtx_unlock(&ctl_softc->ctl_lock); 12557 break; 12558 } 12559 case CTL_TASK_TARGET_RESET: 12560 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12561 break; 12562 case CTL_TASK_BUS_RESET: 12563 retval = ctl_bus_reset(ctl_softc, io); 12564 break; 12565 case CTL_TASK_PORT_LOGIN: 12566 break; 12567 case CTL_TASK_PORT_LOGOUT: 12568 break; 12569 default: 12570 printf("ctl_run_task: got unknown task management event %d\n", 12571 io->taskio.task_action); 12572 break; 12573 } 12574 if (retval == 0) 12575 io->io_hdr.status = CTL_SUCCESS; 12576 else 12577 io->io_hdr.status = CTL_ERROR; 12578 ctl_done(io); 12579} 12580 12581/* 12582 * For HA operation. Handle commands that come in from the other 12583 * controller. 12584 */ 12585static void 12586ctl_handle_isc(union ctl_io *io) 12587{ 12588 int free_io; 12589 struct ctl_lun *lun; 12590 struct ctl_softc *ctl_softc; 12591 uint32_t targ_lun; 12592 12593 ctl_softc = control_softc; 12594 12595 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12596 lun = ctl_softc->ctl_luns[targ_lun]; 12597 12598 switch (io->io_hdr.msg_type) { 12599 case CTL_MSG_SERIALIZE: 12600 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12601 break; 12602 case CTL_MSG_R2R: { 12603 const struct ctl_cmd_entry *entry; 12604 12605 /* 12606 * This is only used in SER_ONLY mode. 12607 */ 12608 free_io = 0; 12609 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12610 mtx_lock(&lun->lun_lock); 12611 if (ctl_scsiio_lun_check(ctl_softc, lun, 12612 entry, (struct ctl_scsiio *)io) != 0) { 12613 mtx_unlock(&lun->lun_lock); 12614 ctl_done(io); 12615 break; 12616 } 12617 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12618 mtx_unlock(&lun->lun_lock); 12619 ctl_enqueue_rtr(io); 12620 break; 12621 } 12622 case CTL_MSG_FINISH_IO: 12623 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12624 free_io = 0; 12625 ctl_done(io); 12626 } else { 12627 free_io = 1; 12628 mtx_lock(&lun->lun_lock); 12629 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12630 ooa_links); 12631 ctl_check_blocked(lun); 12632 mtx_unlock(&lun->lun_lock); 12633 } 12634 break; 12635 case CTL_MSG_PERS_ACTION: 12636 ctl_hndl_per_res_out_on_other_sc( 12637 (union ctl_ha_msg *)&io->presio.pr_msg); 12638 free_io = 1; 12639 break; 12640 case CTL_MSG_BAD_JUJU: 12641 free_io = 0; 12642 ctl_done(io); 12643 break; 12644 case CTL_MSG_DATAMOVE: 12645 /* Only used in XFER mode */ 12646 free_io = 0; 12647 ctl_datamove_remote(io); 12648 break; 12649 case CTL_MSG_DATAMOVE_DONE: 12650 /* Only used in XFER mode */ 12651 free_io = 0; 12652 io->scsiio.be_move_done(io); 12653 break; 12654 default: 12655 free_io = 1; 12656 printf("%s: Invalid message type %d\n", 12657 __func__, io->io_hdr.msg_type); 12658 break; 12659 } 12660 if (free_io) 12661 ctl_free_io(io); 12662 12663} 12664 12665 12666/* 12667 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12668 * there is no match. 12669 */ 12670static ctl_lun_error_pattern 12671ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12672{ 12673 const struct ctl_cmd_entry *entry; 12674 ctl_lun_error_pattern filtered_pattern, pattern; 12675 12676 pattern = desc->error_pattern; 12677 12678 /* 12679 * XXX KDM we need more data passed into this function to match a 12680 * custom pattern, and we actually need to implement custom pattern 12681 * matching. 12682 */ 12683 if (pattern & CTL_LUN_PAT_CMD) 12684 return (CTL_LUN_PAT_CMD); 12685 12686 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12687 return (CTL_LUN_PAT_ANY); 12688 12689 entry = ctl_get_cmd_entry(ctsio, NULL); 12690 12691 filtered_pattern = entry->pattern & pattern; 12692 12693 /* 12694 * If the user requested specific flags in the pattern (e.g. 12695 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12696 * flags. 12697 * 12698 * If the user did not specify any flags, it doesn't matter whether 12699 * or not the command supports the flags. 12700 */ 12701 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12702 (pattern & ~CTL_LUN_PAT_MASK)) 12703 return (CTL_LUN_PAT_NONE); 12704 12705 /* 12706 * If the user asked for a range check, see if the requested LBA 12707 * range overlaps with this command's LBA range. 12708 */ 12709 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12710 uint64_t lba1; 12711 uint64_t len1; 12712 ctl_action action; 12713 int retval; 12714 12715 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12716 if (retval != 0) 12717 return (CTL_LUN_PAT_NONE); 12718 12719 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12720 desc->lba_range.len); 12721 /* 12722 * A "pass" means that the LBA ranges don't overlap, so 12723 * this doesn't match the user's range criteria. 12724 */ 12725 if (action == CTL_ACTION_PASS) 12726 return (CTL_LUN_PAT_NONE); 12727 } 12728 12729 return (filtered_pattern); 12730} 12731 12732static void 12733ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12734{ 12735 struct ctl_error_desc *desc, *desc2; 12736 12737 mtx_assert(&lun->lun_lock, MA_OWNED); 12738 12739 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12740 ctl_lun_error_pattern pattern; 12741 /* 12742 * Check to see whether this particular command matches 12743 * the pattern in the descriptor. 12744 */ 12745 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12746 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12747 continue; 12748 12749 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12750 case CTL_LUN_INJ_ABORTED: 12751 ctl_set_aborted(&io->scsiio); 12752 break; 12753 case CTL_LUN_INJ_MEDIUM_ERR: 12754 ctl_set_medium_error(&io->scsiio); 12755 break; 12756 case CTL_LUN_INJ_UA: 12757 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12758 * OCCURRED */ 12759 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12760 break; 12761 case CTL_LUN_INJ_CUSTOM: 12762 /* 12763 * We're assuming the user knows what he is doing. 12764 * Just copy the sense information without doing 12765 * checks. 12766 */ 12767 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12768 ctl_min(sizeof(desc->custom_sense), 12769 sizeof(io->scsiio.sense_data))); 12770 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12771 io->scsiio.sense_len = SSD_FULL_SIZE; 12772 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12773 break; 12774 case CTL_LUN_INJ_NONE: 12775 default: 12776 /* 12777 * If this is an error injection type we don't know 12778 * about, clear the continuous flag (if it is set) 12779 * so it will get deleted below. 12780 */ 12781 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12782 break; 12783 } 12784 /* 12785 * By default, each error injection action is a one-shot 12786 */ 12787 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12788 continue; 12789 12790 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12791 12792 free(desc, M_CTL); 12793 } 12794} 12795 12796#ifdef CTL_IO_DELAY 12797static void 12798ctl_datamove_timer_wakeup(void *arg) 12799{ 12800 union ctl_io *io; 12801 12802 io = (union ctl_io *)arg; 12803 12804 ctl_datamove(io); 12805} 12806#endif /* CTL_IO_DELAY */ 12807 12808void 12809ctl_datamove(union ctl_io *io) 12810{ 12811 void (*fe_datamove)(union ctl_io *io); 12812 12813 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12814 12815 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12816 12817#ifdef CTL_TIME_IO 12818 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12819 char str[256]; 12820 char path_str[64]; 12821 struct sbuf sb; 12822 12823 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12824 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12825 12826 sbuf_cat(&sb, path_str); 12827 switch (io->io_hdr.io_type) { 12828 case CTL_IO_SCSI: 12829 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12830 sbuf_printf(&sb, "\n"); 12831 sbuf_cat(&sb, path_str); 12832 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12833 io->scsiio.tag_num, io->scsiio.tag_type); 12834 break; 12835 case CTL_IO_TASK: 12836 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12837 "Tag Type: %d\n", io->taskio.task_action, 12838 io->taskio.tag_num, io->taskio.tag_type); 12839 break; 12840 default: 12841 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12842 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12843 break; 12844 } 12845 sbuf_cat(&sb, path_str); 12846 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12847 (intmax_t)time_uptime - io->io_hdr.start_time); 12848 sbuf_finish(&sb); 12849 printf("%s", sbuf_data(&sb)); 12850 } 12851#endif /* CTL_TIME_IO */ 12852 12853#ifdef CTL_IO_DELAY 12854 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12855 struct ctl_lun *lun; 12856 12857 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12858 12859 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12860 } else { 12861 struct ctl_lun *lun; 12862 12863 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12864 if ((lun != NULL) 12865 && (lun->delay_info.datamove_delay > 0)) { 12866 struct callout *callout; 12867 12868 callout = (struct callout *)&io->io_hdr.timer_bytes; 12869 callout_init(callout, /*mpsafe*/ 1); 12870 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12871 callout_reset(callout, 12872 lun->delay_info.datamove_delay * hz, 12873 ctl_datamove_timer_wakeup, io); 12874 if (lun->delay_info.datamove_type == 12875 CTL_DELAY_TYPE_ONESHOT) 12876 lun->delay_info.datamove_delay = 0; 12877 return; 12878 } 12879 } 12880#endif 12881 12882 /* 12883 * This command has been aborted. Set the port status, so we fail 12884 * the data move. 12885 */ 12886 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12887 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12888 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12889 io->io_hdr.nexus.targ_port, 12890 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12891 io->io_hdr.nexus.targ_lun); 12892 io->io_hdr.port_status = 31337; 12893 /* 12894 * Note that the backend, in this case, will get the 12895 * callback in its context. In other cases it may get 12896 * called in the frontend's interrupt thread context. 12897 */ 12898 io->scsiio.be_move_done(io); 12899 return; 12900 } 12901 12902 /* Don't confuse frontend with zero length data move. */ 12903 if (io->scsiio.kern_data_len == 0) { 12904 io->scsiio.be_move_done(io); 12905 return; 12906 } 12907 12908 /* 12909 * If we're in XFER mode and this I/O is from the other shelf 12910 * controller, we need to send the DMA to the other side to 12911 * actually transfer the data to/from the host. In serialize only 12912 * mode the transfer happens below CTL and ctl_datamove() is only 12913 * called on the machine that originally received the I/O. 12914 */ 12915 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12916 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12917 union ctl_ha_msg msg; 12918 uint32_t sg_entries_sent; 12919 int do_sg_copy; 12920 int i; 12921 12922 memset(&msg, 0, sizeof(msg)); 12923 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12924 msg.hdr.original_sc = io->io_hdr.original_sc; 12925 msg.hdr.serializing_sc = io; 12926 msg.hdr.nexus = io->io_hdr.nexus; 12927 msg.dt.flags = io->io_hdr.flags; 12928 /* 12929 * We convert everything into a S/G list here. We can't 12930 * pass by reference, only by value between controllers. 12931 * So we can't pass a pointer to the S/G list, only as many 12932 * S/G entries as we can fit in here. If it's possible for 12933 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12934 * then we need to break this up into multiple transfers. 12935 */ 12936 if (io->scsiio.kern_sg_entries == 0) { 12937 msg.dt.kern_sg_entries = 1; 12938 /* 12939 * If this is in cached memory, flush the cache 12940 * before we send the DMA request to the other 12941 * controller. We want to do this in either the 12942 * read or the write case. The read case is 12943 * straightforward. In the write case, we want to 12944 * make sure nothing is in the local cache that 12945 * could overwrite the DMAed data. 12946 */ 12947 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12948 /* 12949 * XXX KDM use bus_dmamap_sync() here. 12950 */ 12951 } 12952 12953 /* 12954 * Convert to a physical address if this is a 12955 * virtual address. 12956 */ 12957 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12958 msg.dt.sg_list[0].addr = 12959 io->scsiio.kern_data_ptr; 12960 } else { 12961 /* 12962 * XXX KDM use busdma here! 12963 */ 12964#if 0 12965 msg.dt.sg_list[0].addr = (void *) 12966 vtophys(io->scsiio.kern_data_ptr); 12967#endif 12968 } 12969 12970 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12971 do_sg_copy = 0; 12972 } else { 12973 struct ctl_sg_entry *sgl; 12974 12975 do_sg_copy = 1; 12976 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12977 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12978 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12979 /* 12980 * XXX KDM use bus_dmamap_sync() here. 12981 */ 12982 } 12983 } 12984 12985 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12986 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12987 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12988 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12989 msg.dt.sg_sequence = 0; 12990 12991 /* 12992 * Loop until we've sent all of the S/G entries. On the 12993 * other end, we'll recompose these S/G entries into one 12994 * contiguous list before passing it to the 12995 */ 12996 for (sg_entries_sent = 0; sg_entries_sent < 12997 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12998 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12999 sizeof(msg.dt.sg_list[0])), 13000 msg.dt.kern_sg_entries - sg_entries_sent); 13001 13002 if (do_sg_copy != 0) { 13003 struct ctl_sg_entry *sgl; 13004 int j; 13005 13006 sgl = (struct ctl_sg_entry *) 13007 io->scsiio.kern_data_ptr; 13008 /* 13009 * If this is in cached memory, flush the cache 13010 * before we send the DMA request to the other 13011 * controller. We want to do this in either 13012 * the * read or the write case. The read 13013 * case is straightforward. In the write 13014 * case, we want to make sure nothing is 13015 * in the local cache that could overwrite 13016 * the DMAed data. 13017 */ 13018 13019 for (i = sg_entries_sent, j = 0; 13020 i < msg.dt.cur_sg_entries; i++, j++) { 13021 if ((io->io_hdr.flags & 13022 CTL_FLAG_NO_DATASYNC) == 0) { 13023 /* 13024 * XXX KDM use bus_dmamap_sync() 13025 */ 13026 } 13027 if ((io->io_hdr.flags & 13028 CTL_FLAG_BUS_ADDR) == 0) { 13029 /* 13030 * XXX KDM use busdma. 13031 */ 13032#if 0 13033 msg.dt.sg_list[j].addr =(void *) 13034 vtophys(sgl[i].addr); 13035#endif 13036 } else { 13037 msg.dt.sg_list[j].addr = 13038 sgl[i].addr; 13039 } 13040 msg.dt.sg_list[j].len = sgl[i].len; 13041 } 13042 } 13043 13044 sg_entries_sent += msg.dt.cur_sg_entries; 13045 if (sg_entries_sent >= msg.dt.kern_sg_entries) 13046 msg.dt.sg_last = 1; 13047 else 13048 msg.dt.sg_last = 0; 13049 13050 /* 13051 * XXX KDM drop and reacquire the lock here? 13052 */ 13053 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13054 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13055 /* 13056 * XXX do something here. 13057 */ 13058 } 13059 13060 msg.dt.sent_sg_entries = sg_entries_sent; 13061 } 13062 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13063 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 13064 ctl_failover_io(io, /*have_lock*/ 0); 13065 13066 } else { 13067 13068 /* 13069 * Lookup the fe_datamove() function for this particular 13070 * front end. 13071 */ 13072 fe_datamove = 13073 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13074 13075 fe_datamove(io); 13076 } 13077} 13078 13079static void 13080ctl_send_datamove_done(union ctl_io *io, int have_lock) 13081{ 13082 union ctl_ha_msg msg; 13083 int isc_status; 13084 13085 memset(&msg, 0, sizeof(msg)); 13086 13087 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 13088 msg.hdr.original_sc = io; 13089 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13090 msg.hdr.nexus = io->io_hdr.nexus; 13091 msg.hdr.status = io->io_hdr.status; 13092 msg.scsi.tag_num = io->scsiio.tag_num; 13093 msg.scsi.tag_type = io->scsiio.tag_type; 13094 msg.scsi.scsi_status = io->scsiio.scsi_status; 13095 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13096 sizeof(io->scsiio.sense_data)); 13097 msg.scsi.sense_len = io->scsiio.sense_len; 13098 msg.scsi.sense_residual = io->scsiio.sense_residual; 13099 msg.scsi.fetd_status = io->io_hdr.port_status; 13100 msg.scsi.residual = io->scsiio.residual; 13101 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13102 13103 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13104 ctl_failover_io(io, /*have_lock*/ have_lock); 13105 return; 13106 } 13107 13108 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 13109 if (isc_status > CTL_HA_STATUS_SUCCESS) { 13110 /* XXX do something if this fails */ 13111 } 13112 13113} 13114 13115/* 13116 * The DMA to the remote side is done, now we need to tell the other side 13117 * we're done so it can continue with its data movement. 13118 */ 13119static void 13120ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 13121{ 13122 union ctl_io *io; 13123 13124 io = rq->context; 13125 13126 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13127 printf("%s: ISC DMA write failed with error %d", __func__, 13128 rq->ret); 13129 ctl_set_internal_failure(&io->scsiio, 13130 /*sks_valid*/ 1, 13131 /*retry_count*/ rq->ret); 13132 } 13133 13134 ctl_dt_req_free(rq); 13135 13136 /* 13137 * In this case, we had to malloc the memory locally. Free it. 13138 */ 13139 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13140 int i; 13141 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13142 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13143 } 13144 /* 13145 * The data is in local and remote memory, so now we need to send 13146 * status (good or back) back to the other side. 13147 */ 13148 ctl_send_datamove_done(io, /*have_lock*/ 0); 13149} 13150 13151/* 13152 * We've moved the data from the host/controller into local memory. Now we 13153 * need to push it over to the remote controller's memory. 13154 */ 13155static int 13156ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13157{ 13158 int retval; 13159 13160 retval = 0; 13161 13162 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13163 ctl_datamove_remote_write_cb); 13164 13165 return (retval); 13166} 13167 13168static void 13169ctl_datamove_remote_write(union ctl_io *io) 13170{ 13171 int retval; 13172 void (*fe_datamove)(union ctl_io *io); 13173 13174 /* 13175 * - Get the data from the host/HBA into local memory. 13176 * - DMA memory from the local controller to the remote controller. 13177 * - Send status back to the remote controller. 13178 */ 13179 13180 retval = ctl_datamove_remote_sgl_setup(io); 13181 if (retval != 0) 13182 return; 13183 13184 /* Switch the pointer over so the FETD knows what to do */ 13185 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13186 13187 /* 13188 * Use a custom move done callback, since we need to send completion 13189 * back to the other controller, not to the backend on this side. 13190 */ 13191 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13192 13193 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13194 13195 fe_datamove(io); 13196 13197 return; 13198 13199} 13200 13201static int 13202ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13203{ 13204#if 0 13205 char str[256]; 13206 char path_str[64]; 13207 struct sbuf sb; 13208#endif 13209 13210 /* 13211 * In this case, we had to malloc the memory locally. Free it. 13212 */ 13213 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13214 int i; 13215 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13216 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13217 } 13218 13219#if 0 13220 scsi_path_string(io, path_str, sizeof(path_str)); 13221 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13222 sbuf_cat(&sb, path_str); 13223 scsi_command_string(&io->scsiio, NULL, &sb); 13224 sbuf_printf(&sb, "\n"); 13225 sbuf_cat(&sb, path_str); 13226 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13227 io->scsiio.tag_num, io->scsiio.tag_type); 13228 sbuf_cat(&sb, path_str); 13229 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13230 io->io_hdr.flags, io->io_hdr.status); 13231 sbuf_finish(&sb); 13232 printk("%s", sbuf_data(&sb)); 13233#endif 13234 13235 13236 /* 13237 * The read is done, now we need to send status (good or bad) back 13238 * to the other side. 13239 */ 13240 ctl_send_datamove_done(io, /*have_lock*/ 0); 13241 13242 return (0); 13243} 13244 13245static void 13246ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13247{ 13248 union ctl_io *io; 13249 void (*fe_datamove)(union ctl_io *io); 13250 13251 io = rq->context; 13252 13253 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13254 printf("%s: ISC DMA read failed with error %d", __func__, 13255 rq->ret); 13256 ctl_set_internal_failure(&io->scsiio, 13257 /*sks_valid*/ 1, 13258 /*retry_count*/ rq->ret); 13259 } 13260 13261 ctl_dt_req_free(rq); 13262 13263 /* Switch the pointer over so the FETD knows what to do */ 13264 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13265 13266 /* 13267 * Use a custom move done callback, since we need to send completion 13268 * back to the other controller, not to the backend on this side. 13269 */ 13270 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13271 13272 /* XXX KDM add checks like the ones in ctl_datamove? */ 13273 13274 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13275 13276 fe_datamove(io); 13277} 13278 13279static int 13280ctl_datamove_remote_sgl_setup(union ctl_io *io) 13281{ 13282 struct ctl_sg_entry *local_sglist, *remote_sglist; 13283 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13284 struct ctl_softc *softc; 13285 int retval; 13286 int i; 13287 13288 retval = 0; 13289 softc = control_softc; 13290 13291 local_sglist = io->io_hdr.local_sglist; 13292 local_dma_sglist = io->io_hdr.local_dma_sglist; 13293 remote_sglist = io->io_hdr.remote_sglist; 13294 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13295 13296 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13297 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13298 local_sglist[i].len = remote_sglist[i].len; 13299 13300 /* 13301 * XXX Detect the situation where the RS-level I/O 13302 * redirector on the other side has already read the 13303 * data off of the AOR RS on this side, and 13304 * transferred it to remote (mirror) memory on the 13305 * other side. Since we already have the data in 13306 * memory here, we just need to use it. 13307 * 13308 * XXX KDM this can probably be removed once we 13309 * get the cache device code in and take the 13310 * current AOR implementation out. 13311 */ 13312#ifdef NEEDTOPORT 13313 if ((remote_sglist[i].addr >= 13314 (void *)vtophys(softc->mirr->addr)) 13315 && (remote_sglist[i].addr < 13316 ((void *)vtophys(softc->mirr->addr) + 13317 CacheMirrorOffset))) { 13318 local_sglist[i].addr = remote_sglist[i].addr - 13319 CacheMirrorOffset; 13320 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13321 CTL_FLAG_DATA_IN) 13322 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13323 } else { 13324 local_sglist[i].addr = remote_sglist[i].addr + 13325 CacheMirrorOffset; 13326 } 13327#endif 13328#if 0 13329 printf("%s: local %p, remote %p, len %d\n", 13330 __func__, local_sglist[i].addr, 13331 remote_sglist[i].addr, local_sglist[i].len); 13332#endif 13333 } 13334 } else { 13335 uint32_t len_to_go; 13336 13337 /* 13338 * In this case, we don't have automatically allocated 13339 * memory for this I/O on this controller. This typically 13340 * happens with internal CTL I/O -- e.g. inquiry, mode 13341 * sense, etc. Anything coming from RAIDCore will have 13342 * a mirror area available. 13343 */ 13344 len_to_go = io->scsiio.kern_data_len; 13345 13346 /* 13347 * Clear the no datasync flag, we have to use malloced 13348 * buffers. 13349 */ 13350 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13351 13352 /* 13353 * The difficult thing here is that the size of the various 13354 * S/G segments may be different than the size from the 13355 * remote controller. That'll make it harder when DMAing 13356 * the data back to the other side. 13357 */ 13358 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13359 sizeof(io->io_hdr.remote_sglist[0])) && 13360 (len_to_go > 0); i++) { 13361 local_sglist[i].len = ctl_min(len_to_go, 131072); 13362 CTL_SIZE_8B(local_dma_sglist[i].len, 13363 local_sglist[i].len); 13364 local_sglist[i].addr = 13365 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13366 13367 local_dma_sglist[i].addr = local_sglist[i].addr; 13368 13369 if (local_sglist[i].addr == NULL) { 13370 int j; 13371 13372 printf("malloc failed for %zd bytes!", 13373 local_dma_sglist[i].len); 13374 for (j = 0; j < i; j++) { 13375 free(local_sglist[j].addr, M_CTL); 13376 } 13377 ctl_set_internal_failure(&io->scsiio, 13378 /*sks_valid*/ 1, 13379 /*retry_count*/ 4857); 13380 retval = 1; 13381 goto bailout_error; 13382 13383 } 13384 /* XXX KDM do we need a sync here? */ 13385 13386 len_to_go -= local_sglist[i].len; 13387 } 13388 /* 13389 * Reset the number of S/G entries accordingly. The 13390 * original number of S/G entries is available in 13391 * rem_sg_entries. 13392 */ 13393 io->scsiio.kern_sg_entries = i; 13394 13395#if 0 13396 printf("%s: kern_sg_entries = %d\n", __func__, 13397 io->scsiio.kern_sg_entries); 13398 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13399 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13400 local_sglist[i].addr, local_sglist[i].len, 13401 local_dma_sglist[i].len); 13402#endif 13403 } 13404 13405 13406 return (retval); 13407 13408bailout_error: 13409 13410 ctl_send_datamove_done(io, /*have_lock*/ 0); 13411 13412 return (retval); 13413} 13414 13415static int 13416ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13417 ctl_ha_dt_cb callback) 13418{ 13419 struct ctl_ha_dt_req *rq; 13420 struct ctl_sg_entry *remote_sglist, *local_sglist; 13421 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13422 uint32_t local_used, remote_used, total_used; 13423 int retval; 13424 int i, j; 13425 13426 retval = 0; 13427 13428 rq = ctl_dt_req_alloc(); 13429 13430 /* 13431 * If we failed to allocate the request, and if the DMA didn't fail 13432 * anyway, set busy status. This is just a resource allocation 13433 * failure. 13434 */ 13435 if ((rq == NULL) 13436 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13437 ctl_set_busy(&io->scsiio); 13438 13439 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13440 13441 if (rq != NULL) 13442 ctl_dt_req_free(rq); 13443 13444 /* 13445 * The data move failed. We need to return status back 13446 * to the other controller. No point in trying to DMA 13447 * data to the remote controller. 13448 */ 13449 13450 ctl_send_datamove_done(io, /*have_lock*/ 0); 13451 13452 retval = 1; 13453 13454 goto bailout; 13455 } 13456 13457 local_sglist = io->io_hdr.local_sglist; 13458 local_dma_sglist = io->io_hdr.local_dma_sglist; 13459 remote_sglist = io->io_hdr.remote_sglist; 13460 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13461 local_used = 0; 13462 remote_used = 0; 13463 total_used = 0; 13464 13465 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13466 rq->ret = CTL_HA_STATUS_SUCCESS; 13467 rq->context = io; 13468 callback(rq); 13469 goto bailout; 13470 } 13471 13472 /* 13473 * Pull/push the data over the wire from/to the other controller. 13474 * This takes into account the possibility that the local and 13475 * remote sglists may not be identical in terms of the size of 13476 * the elements and the number of elements. 13477 * 13478 * One fundamental assumption here is that the length allocated for 13479 * both the local and remote sglists is identical. Otherwise, we've 13480 * essentially got a coding error of some sort. 13481 */ 13482 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13483 int isc_ret; 13484 uint32_t cur_len, dma_length; 13485 uint8_t *tmp_ptr; 13486 13487 rq->id = CTL_HA_DATA_CTL; 13488 rq->command = command; 13489 rq->context = io; 13490 13491 /* 13492 * Both pointers should be aligned. But it is possible 13493 * that the allocation length is not. They should both 13494 * also have enough slack left over at the end, though, 13495 * to round up to the next 8 byte boundary. 13496 */ 13497 cur_len = ctl_min(local_sglist[i].len - local_used, 13498 remote_sglist[j].len - remote_used); 13499 13500 /* 13501 * In this case, we have a size issue and need to decrease 13502 * the size, except in the case where we actually have less 13503 * than 8 bytes left. In that case, we need to increase 13504 * the DMA length to get the last bit. 13505 */ 13506 if ((cur_len & 0x7) != 0) { 13507 if (cur_len > 0x7) { 13508 cur_len = cur_len - (cur_len & 0x7); 13509 dma_length = cur_len; 13510 } else { 13511 CTL_SIZE_8B(dma_length, cur_len); 13512 } 13513 13514 } else 13515 dma_length = cur_len; 13516 13517 /* 13518 * If we had to allocate memory for this I/O, instead of using 13519 * the non-cached mirror memory, we'll need to flush the cache 13520 * before trying to DMA to the other controller. 13521 * 13522 * We could end up doing this multiple times for the same 13523 * segment if we have a larger local segment than remote 13524 * segment. That shouldn't be an issue. 13525 */ 13526 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13527 /* 13528 * XXX KDM use bus_dmamap_sync() here. 13529 */ 13530 } 13531 13532 rq->size = dma_length; 13533 13534 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13535 tmp_ptr += local_used; 13536 13537 /* Use physical addresses when talking to ISC hardware */ 13538 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13539 /* XXX KDM use busdma */ 13540#if 0 13541 rq->local = vtophys(tmp_ptr); 13542#endif 13543 } else 13544 rq->local = tmp_ptr; 13545 13546 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13547 tmp_ptr += remote_used; 13548 rq->remote = tmp_ptr; 13549 13550 rq->callback = NULL; 13551 13552 local_used += cur_len; 13553 if (local_used >= local_sglist[i].len) { 13554 i++; 13555 local_used = 0; 13556 } 13557 13558 remote_used += cur_len; 13559 if (remote_used >= remote_sglist[j].len) { 13560 j++; 13561 remote_used = 0; 13562 } 13563 total_used += cur_len; 13564 13565 if (total_used >= io->scsiio.kern_data_len) 13566 rq->callback = callback; 13567 13568 if ((rq->size & 0x7) != 0) { 13569 printf("%s: warning: size %d is not on 8b boundary\n", 13570 __func__, rq->size); 13571 } 13572 if (((uintptr_t)rq->local & 0x7) != 0) { 13573 printf("%s: warning: local %p not on 8b boundary\n", 13574 __func__, rq->local); 13575 } 13576 if (((uintptr_t)rq->remote & 0x7) != 0) { 13577 printf("%s: warning: remote %p not on 8b boundary\n", 13578 __func__, rq->local); 13579 } 13580#if 0 13581 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13582 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13583 rq->local, rq->remote, rq->size); 13584#endif 13585 13586 isc_ret = ctl_dt_single(rq); 13587 if (isc_ret == CTL_HA_STATUS_WAIT) 13588 continue; 13589 13590 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13591 rq->ret = CTL_HA_STATUS_SUCCESS; 13592 } else { 13593 rq->ret = isc_ret; 13594 } 13595 callback(rq); 13596 goto bailout; 13597 } 13598 13599bailout: 13600 return (retval); 13601 13602} 13603 13604static void 13605ctl_datamove_remote_read(union ctl_io *io) 13606{ 13607 int retval; 13608 int i; 13609 13610 /* 13611 * This will send an error to the other controller in the case of a 13612 * failure. 13613 */ 13614 retval = ctl_datamove_remote_sgl_setup(io); 13615 if (retval != 0) 13616 return; 13617 13618 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13619 ctl_datamove_remote_read_cb); 13620 if ((retval != 0) 13621 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13622 /* 13623 * Make sure we free memory if there was an error.. The 13624 * ctl_datamove_remote_xfer() function will send the 13625 * datamove done message, or call the callback with an 13626 * error if there is a problem. 13627 */ 13628 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13629 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13630 } 13631 13632 return; 13633} 13634 13635/* 13636 * Process a datamove request from the other controller. This is used for 13637 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13638 * first. Once that is complete, the data gets DMAed into the remote 13639 * controller's memory. For reads, we DMA from the remote controller's 13640 * memory into our memory first, and then move it out to the FETD. 13641 */ 13642static void 13643ctl_datamove_remote(union ctl_io *io) 13644{ 13645 struct ctl_softc *softc; 13646 13647 softc = control_softc; 13648 13649 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13650 13651 /* 13652 * Note that we look for an aborted I/O here, but don't do some of 13653 * the other checks that ctl_datamove() normally does. 13654 * We don't need to run the datamove delay code, since that should 13655 * have been done if need be on the other controller. 13656 */ 13657 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13658 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13659 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13660 io->io_hdr.nexus.targ_port, 13661 io->io_hdr.nexus.targ_target.id, 13662 io->io_hdr.nexus.targ_lun); 13663 io->io_hdr.port_status = 31338; 13664 ctl_send_datamove_done(io, /*have_lock*/ 0); 13665 return; 13666 } 13667 13668 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13669 ctl_datamove_remote_write(io); 13670 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13671 ctl_datamove_remote_read(io); 13672 } else { 13673 union ctl_ha_msg msg; 13674 struct scsi_sense_data *sense; 13675 uint8_t sks[3]; 13676 int retry_count; 13677 13678 memset(&msg, 0, sizeof(msg)); 13679 13680 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13681 msg.hdr.status = CTL_SCSI_ERROR; 13682 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13683 13684 retry_count = 4243; 13685 13686 sense = &msg.scsi.sense_data; 13687 sks[0] = SSD_SCS_VALID; 13688 sks[1] = (retry_count >> 8) & 0xff; 13689 sks[2] = retry_count & 0xff; 13690 13691 /* "Internal target failure" */ 13692 scsi_set_sense_data(sense, 13693 /*sense_format*/ SSD_TYPE_NONE, 13694 /*current_error*/ 1, 13695 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13696 /*asc*/ 0x44, 13697 /*ascq*/ 0x00, 13698 /*type*/ SSD_ELEM_SKS, 13699 /*size*/ sizeof(sks), 13700 /*data*/ sks, 13701 SSD_ELEM_NONE); 13702 13703 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13704 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13705 ctl_failover_io(io, /*have_lock*/ 1); 13706 return; 13707 } 13708 13709 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13710 CTL_HA_STATUS_SUCCESS) { 13711 /* XXX KDM what to do if this fails? */ 13712 } 13713 return; 13714 } 13715 13716} 13717 13718static int 13719ctl_process_done(union ctl_io *io) 13720{ 13721 struct ctl_lun *lun; 13722 struct ctl_softc *ctl_softc; 13723 void (*fe_done)(union ctl_io *io); 13724 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13725 13726 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13727 13728 fe_done = 13729 control_softc->ctl_ports[targ_port]->fe_done; 13730 13731#ifdef CTL_TIME_IO 13732 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13733 char str[256]; 13734 char path_str[64]; 13735 struct sbuf sb; 13736 13737 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13738 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13739 13740 sbuf_cat(&sb, path_str); 13741 switch (io->io_hdr.io_type) { 13742 case CTL_IO_SCSI: 13743 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13744 sbuf_printf(&sb, "\n"); 13745 sbuf_cat(&sb, path_str); 13746 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13747 io->scsiio.tag_num, io->scsiio.tag_type); 13748 break; 13749 case CTL_IO_TASK: 13750 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13751 "Tag Type: %d\n", io->taskio.task_action, 13752 io->taskio.tag_num, io->taskio.tag_type); 13753 break; 13754 default: 13755 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13756 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13757 break; 13758 } 13759 sbuf_cat(&sb, path_str); 13760 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13761 (intmax_t)time_uptime - io->io_hdr.start_time); 13762 sbuf_finish(&sb); 13763 printf("%s", sbuf_data(&sb)); 13764 } 13765#endif /* CTL_TIME_IO */ 13766 13767 switch (io->io_hdr.io_type) { 13768 case CTL_IO_SCSI: 13769 break; 13770 case CTL_IO_TASK: 13771 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13772 ctl_io_error_print(io, NULL); 13773 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13774 ctl_free_io(io); 13775 else 13776 fe_done(io); 13777 return (CTL_RETVAL_COMPLETE); 13778 default: 13779 panic("ctl_process_done: invalid io type %d\n", 13780 io->io_hdr.io_type); 13781 break; /* NOTREACHED */ 13782 } 13783 13784 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13785 if (lun == NULL) { 13786 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13787 io->io_hdr.nexus.targ_mapped_lun)); 13788 fe_done(io); 13789 goto bailout; 13790 } 13791 ctl_softc = lun->ctl_softc; 13792 13793 mtx_lock(&lun->lun_lock); 13794 13795 /* 13796 * Check to see if we have any errors to inject here. We only 13797 * inject errors for commands that don't already have errors set. 13798 */ 13799 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13800 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13801 ctl_inject_error(lun, io); 13802 13803 /* 13804 * XXX KDM how do we treat commands that aren't completed 13805 * successfully? 13806 * 13807 * XXX KDM should we also track I/O latency? 13808 */ 13809 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13810 io->io_hdr.io_type == CTL_IO_SCSI) { 13811#ifdef CTL_TIME_IO 13812 struct bintime cur_bt; 13813#endif 13814 int type; 13815 13816 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13817 CTL_FLAG_DATA_IN) 13818 type = CTL_STATS_READ; 13819 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13820 CTL_FLAG_DATA_OUT) 13821 type = CTL_STATS_WRITE; 13822 else 13823 type = CTL_STATS_NO_IO; 13824 13825 lun->stats.ports[targ_port].bytes[type] += 13826 io->scsiio.kern_total_len; 13827 lun->stats.ports[targ_port].operations[type]++; 13828#ifdef CTL_TIME_IO 13829 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13830 &io->io_hdr.dma_bt); 13831 lun->stats.ports[targ_port].num_dmas[type] += 13832 io->io_hdr.num_dmas; 13833 getbintime(&cur_bt); 13834 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13835 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13836#endif 13837 } 13838 13839 /* 13840 * Remove this from the OOA queue. 13841 */ 13842 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13843 13844 /* 13845 * Run through the blocked queue on this LUN and see if anything 13846 * has become unblocked, now that this transaction is done. 13847 */ 13848 ctl_check_blocked(lun); 13849 13850 /* 13851 * If the LUN has been invalidated, free it if there is nothing 13852 * left on its OOA queue. 13853 */ 13854 if ((lun->flags & CTL_LUN_INVALID) 13855 && TAILQ_EMPTY(&lun->ooa_queue)) { 13856 mtx_unlock(&lun->lun_lock); 13857 mtx_lock(&ctl_softc->ctl_lock); 13858 ctl_free_lun(lun); 13859 mtx_unlock(&ctl_softc->ctl_lock); 13860 } else 13861 mtx_unlock(&lun->lun_lock); 13862 13863 /* 13864 * If this command has been aborted, make sure we set the status 13865 * properly. The FETD is responsible for freeing the I/O and doing 13866 * whatever it needs to do to clean up its state. 13867 */ 13868 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13869 ctl_set_task_aborted(&io->scsiio); 13870 13871 /* 13872 * If enabled, print command error status. 13873 * We don't print UAs unless debugging was enabled explicitly. 13874 */ 13875 do { 13876 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13877 break; 13878 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13879 break; 13880 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13881 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13882 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13883 int error_code, sense_key, asc, ascq; 13884 13885 scsi_extract_sense_len(&io->scsiio.sense_data, 13886 io->scsiio.sense_len, &error_code, &sense_key, 13887 &asc, &ascq, /*show_errors*/ 0); 13888 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13889 break; 13890 } 13891 13892 ctl_io_error_print(io, NULL); 13893 } while (0); 13894 13895 /* 13896 * Tell the FETD or the other shelf controller we're done with this 13897 * command. Note that only SCSI commands get to this point. Task 13898 * management commands are completed above. 13899 * 13900 * We only send status to the other controller if we're in XFER 13901 * mode. In SER_ONLY mode, the I/O is done on the controller that 13902 * received the I/O (from CTL's perspective), and so the status is 13903 * generated there. 13904 * 13905 * XXX KDM if we hold the lock here, we could cause a deadlock 13906 * if the frontend comes back in in this context to queue 13907 * something. 13908 */ 13909 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13910 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13911 union ctl_ha_msg msg; 13912 13913 memset(&msg, 0, sizeof(msg)); 13914 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13915 msg.hdr.original_sc = io->io_hdr.original_sc; 13916 msg.hdr.nexus = io->io_hdr.nexus; 13917 msg.hdr.status = io->io_hdr.status; 13918 msg.scsi.scsi_status = io->scsiio.scsi_status; 13919 msg.scsi.tag_num = io->scsiio.tag_num; 13920 msg.scsi.tag_type = io->scsiio.tag_type; 13921 msg.scsi.sense_len = io->scsiio.sense_len; 13922 msg.scsi.sense_residual = io->scsiio.sense_residual; 13923 msg.scsi.residual = io->scsiio.residual; 13924 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13925 sizeof(io->scsiio.sense_data)); 13926 /* 13927 * We copy this whether or not this is an I/O-related 13928 * command. Otherwise, we'd have to go and check to see 13929 * whether it's a read/write command, and it really isn't 13930 * worth it. 13931 */ 13932 memcpy(&msg.scsi.lbalen, 13933 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13934 sizeof(msg.scsi.lbalen)); 13935 13936 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13937 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13938 /* XXX do something here */ 13939 } 13940 13941 ctl_free_io(io); 13942 } else 13943 fe_done(io); 13944 13945bailout: 13946 13947 return (CTL_RETVAL_COMPLETE); 13948} 13949 13950#ifdef CTL_WITH_CA 13951/* 13952 * Front end should call this if it doesn't do autosense. When the request 13953 * sense comes back in from the initiator, we'll dequeue this and send it. 13954 */ 13955int 13956ctl_queue_sense(union ctl_io *io) 13957{ 13958 struct ctl_lun *lun; 13959 struct ctl_softc *ctl_softc; 13960 uint32_t initidx, targ_lun; 13961 13962 ctl_softc = control_softc; 13963 13964 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13965 13966 /* 13967 * LUN lookup will likely move to the ctl_work_thread() once we 13968 * have our new queueing infrastructure (that doesn't put things on 13969 * a per-LUN queue initially). That is so that we can handle 13970 * things like an INQUIRY to a LUN that we don't have enabled. We 13971 * can't deal with that right now. 13972 */ 13973 mtx_lock(&ctl_softc->ctl_lock); 13974 13975 /* 13976 * If we don't have a LUN for this, just toss the sense 13977 * information. 13978 */ 13979 targ_lun = io->io_hdr.nexus.targ_lun; 13980 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13981 if ((targ_lun < CTL_MAX_LUNS) 13982 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13983 lun = ctl_softc->ctl_luns[targ_lun]; 13984 else 13985 goto bailout; 13986 13987 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13988 13989 mtx_lock(&lun->lun_lock); 13990 /* 13991 * Already have CA set for this LUN...toss the sense information. 13992 */ 13993 if (ctl_is_set(lun->have_ca, initidx)) { 13994 mtx_unlock(&lun->lun_lock); 13995 goto bailout; 13996 } 13997 13998 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13999 ctl_min(sizeof(lun->pending_sense[initidx]), 14000 sizeof(io->scsiio.sense_data))); 14001 ctl_set_mask(lun->have_ca, initidx); 14002 mtx_unlock(&lun->lun_lock); 14003 14004bailout: 14005 mtx_unlock(&ctl_softc->ctl_lock); 14006 14007 ctl_free_io(io); 14008 14009 return (CTL_RETVAL_COMPLETE); 14010} 14011#endif 14012 14013/* 14014 * Primary command inlet from frontend ports. All SCSI and task I/O 14015 * requests must go through this function. 14016 */ 14017int 14018ctl_queue(union ctl_io *io) 14019{ 14020 struct ctl_softc *ctl_softc; 14021 14022 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 14023 14024 ctl_softc = control_softc; 14025 14026#ifdef CTL_TIME_IO 14027 io->io_hdr.start_time = time_uptime; 14028 getbintime(&io->io_hdr.start_bt); 14029#endif /* CTL_TIME_IO */ 14030 14031 /* Map FE-specific LUN ID into global one. */ 14032 io->io_hdr.nexus.targ_mapped_lun = 14033 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 14034 14035 switch (io->io_hdr.io_type) { 14036 case CTL_IO_SCSI: 14037 case CTL_IO_TASK: 14038 if (ctl_debug & CTL_DEBUG_CDB) 14039 ctl_io_print(io); 14040 ctl_enqueue_incoming(io); 14041 break; 14042 default: 14043 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 14044 return (EINVAL); 14045 } 14046 14047 return (CTL_RETVAL_COMPLETE); 14048} 14049 14050#ifdef CTL_IO_DELAY 14051static void 14052ctl_done_timer_wakeup(void *arg) 14053{ 14054 union ctl_io *io; 14055 14056 io = (union ctl_io *)arg; 14057 ctl_done(io); 14058} 14059#endif /* CTL_IO_DELAY */ 14060 14061void 14062ctl_done(union ctl_io *io) 14063{ 14064 struct ctl_softc *ctl_softc; 14065 14066 ctl_softc = control_softc; 14067 14068 /* 14069 * Enable this to catch duplicate completion issues. 14070 */ 14071#if 0 14072 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 14073 printf("%s: type %d msg %d cdb %x iptl: " 14074 "%d:%d:%d:%d tag 0x%04x " 14075 "flag %#x status %x\n", 14076 __func__, 14077 io->io_hdr.io_type, 14078 io->io_hdr.msg_type, 14079 io->scsiio.cdb[0], 14080 io->io_hdr.nexus.initid.id, 14081 io->io_hdr.nexus.targ_port, 14082 io->io_hdr.nexus.targ_target.id, 14083 io->io_hdr.nexus.targ_lun, 14084 (io->io_hdr.io_type == 14085 CTL_IO_TASK) ? 14086 io->taskio.tag_num : 14087 io->scsiio.tag_num, 14088 io->io_hdr.flags, 14089 io->io_hdr.status); 14090 } else 14091 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14092#endif 14093 14094 /* 14095 * This is an internal copy of an I/O, and should not go through 14096 * the normal done processing logic. 14097 */ 14098 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14099 return; 14100 14101 /* 14102 * We need to send a msg to the serializing shelf to finish the IO 14103 * as well. We don't send a finish message to the other shelf if 14104 * this is a task management command. Task management commands 14105 * aren't serialized in the OOA queue, but rather just executed on 14106 * both shelf controllers for commands that originated on that 14107 * controller. 14108 */ 14109 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14110 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14111 union ctl_ha_msg msg_io; 14112 14113 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14114 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14115 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14116 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14117 } 14118 /* continue on to finish IO */ 14119 } 14120#ifdef CTL_IO_DELAY 14121 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14122 struct ctl_lun *lun; 14123 14124 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14125 14126 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14127 } else { 14128 struct ctl_lun *lun; 14129 14130 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14131 14132 if ((lun != NULL) 14133 && (lun->delay_info.done_delay > 0)) { 14134 struct callout *callout; 14135 14136 callout = (struct callout *)&io->io_hdr.timer_bytes; 14137 callout_init(callout, /*mpsafe*/ 1); 14138 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14139 callout_reset(callout, 14140 lun->delay_info.done_delay * hz, 14141 ctl_done_timer_wakeup, io); 14142 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14143 lun->delay_info.done_delay = 0; 14144 return; 14145 } 14146 } 14147#endif /* CTL_IO_DELAY */ 14148 14149 ctl_enqueue_done(io); 14150} 14151 14152int 14153ctl_isc(struct ctl_scsiio *ctsio) 14154{ 14155 struct ctl_lun *lun; 14156 int retval; 14157 14158 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14159 14160 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14161 14162 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14163 14164 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14165 14166 return (retval); 14167} 14168 14169 14170static void 14171ctl_work_thread(void *arg) 14172{ 14173 struct ctl_thread *thr = (struct ctl_thread *)arg; 14174 struct ctl_softc *softc = thr->ctl_softc; 14175 union ctl_io *io; 14176 int retval; 14177 14178 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14179 14180 for (;;) { 14181 retval = 0; 14182 14183 /* 14184 * We handle the queues in this order: 14185 * - ISC 14186 * - done queue (to free up resources, unblock other commands) 14187 * - RtR queue 14188 * - incoming queue 14189 * 14190 * If those queues are empty, we break out of the loop and 14191 * go to sleep. 14192 */ 14193 mtx_lock(&thr->queue_lock); 14194 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14195 if (io != NULL) { 14196 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14197 mtx_unlock(&thr->queue_lock); 14198 ctl_handle_isc(io); 14199 continue; 14200 } 14201 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14202 if (io != NULL) { 14203 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14204 /* clear any blocked commands, call fe_done */ 14205 mtx_unlock(&thr->queue_lock); 14206 retval = ctl_process_done(io); 14207 continue; 14208 } 14209 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14210 if (io != NULL) { 14211 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14212 mtx_unlock(&thr->queue_lock); 14213 if (io->io_hdr.io_type == CTL_IO_TASK) 14214 ctl_run_task(io); 14215 else 14216 ctl_scsiio_precheck(softc, &io->scsiio); 14217 continue; 14218 } 14219 if (!ctl_pause_rtr) { 14220 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14221 if (io != NULL) { 14222 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14223 mtx_unlock(&thr->queue_lock); 14224 retval = ctl_scsiio(&io->scsiio); 14225 if (retval != CTL_RETVAL_COMPLETE) 14226 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14227 continue; 14228 } 14229 } 14230 14231 /* Sleep until we have something to do. */ 14232 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14233 } 14234} 14235 14236static void 14237ctl_lun_thread(void *arg) 14238{ 14239 struct ctl_softc *softc = (struct ctl_softc *)arg; 14240 struct ctl_be_lun *be_lun; 14241 int retval; 14242 14243 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14244 14245 for (;;) { 14246 retval = 0; 14247 mtx_lock(&softc->ctl_lock); 14248 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14249 if (be_lun != NULL) { 14250 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14251 mtx_unlock(&softc->ctl_lock); 14252 ctl_create_lun(be_lun); 14253 continue; 14254 } 14255 14256 /* Sleep until we have something to do. */ 14257 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14258 PDROP | PRIBIO, "-", 0); 14259 } 14260} 14261 14262static void 14263ctl_enqueue_incoming(union ctl_io *io) 14264{ 14265 struct ctl_softc *softc = control_softc; 14266 struct ctl_thread *thr; 14267 u_int idx; 14268 14269 idx = (io->io_hdr.nexus.targ_port * 127 + 14270 io->io_hdr.nexus.initid.id) % worker_threads; 14271 thr = &softc->threads[idx]; 14272 mtx_lock(&thr->queue_lock); 14273 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14274 mtx_unlock(&thr->queue_lock); 14275 wakeup(thr); 14276} 14277 14278static void 14279ctl_enqueue_rtr(union ctl_io *io) 14280{ 14281 struct ctl_softc *softc = control_softc; 14282 struct ctl_thread *thr; 14283 14284 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14285 mtx_lock(&thr->queue_lock); 14286 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14287 mtx_unlock(&thr->queue_lock); 14288 wakeup(thr); 14289} 14290 14291static void 14292ctl_enqueue_done(union ctl_io *io) 14293{ 14294 struct ctl_softc *softc = control_softc; 14295 struct ctl_thread *thr; 14296 14297 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14298 mtx_lock(&thr->queue_lock); 14299 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14300 mtx_unlock(&thr->queue_lock); 14301 wakeup(thr); 14302} 14303 14304static void 14305ctl_enqueue_isc(union ctl_io *io) 14306{ 14307 struct ctl_softc *softc = control_softc; 14308 struct ctl_thread *thr; 14309 14310 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14311 mtx_lock(&thr->queue_lock); 14312 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14313 mtx_unlock(&thr->queue_lock); 14314 wakeup(thr); 14315} 14316 14317/* Initialization and failover */ 14318 14319void 14320ctl_init_isc_msg(void) 14321{ 14322 printf("CTL: Still calling this thing\n"); 14323} 14324 14325/* 14326 * Init component 14327 * Initializes component into configuration defined by bootMode 14328 * (see hasc-sv.c) 14329 * returns hasc_Status: 14330 * OK 14331 * ERROR - fatal error 14332 */ 14333static ctl_ha_comp_status 14334ctl_isc_init(struct ctl_ha_component *c) 14335{ 14336 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14337 14338 c->status = ret; 14339 return ret; 14340} 14341 14342/* Start component 14343 * Starts component in state requested. If component starts successfully, 14344 * it must set its own state to the requestrd state 14345 * When requested state is HASC_STATE_HA, the component may refine it 14346 * by adding _SLAVE or _MASTER flags. 14347 * Currently allowed state transitions are: 14348 * UNKNOWN->HA - initial startup 14349 * UNKNOWN->SINGLE - initial startup when no parter detected 14350 * HA->SINGLE - failover 14351 * returns ctl_ha_comp_status: 14352 * OK - component successfully started in requested state 14353 * FAILED - could not start the requested state, failover may 14354 * be possible 14355 * ERROR - fatal error detected, no future startup possible 14356 */ 14357static ctl_ha_comp_status 14358ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14359{ 14360 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14361 14362 printf("%s: go\n", __func__); 14363 14364 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14365 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14366 ctl_is_single = 0; 14367 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14368 != CTL_HA_STATUS_SUCCESS) { 14369 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14370 ret = CTL_HA_COMP_STATUS_ERROR; 14371 } 14372 } else if (CTL_HA_STATE_IS_HA(c->state) 14373 && CTL_HA_STATE_IS_SINGLE(state)){ 14374 // HA->SINGLE transition 14375 ctl_failover(); 14376 ctl_is_single = 1; 14377 } else { 14378 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14379 c->state, state); 14380 ret = CTL_HA_COMP_STATUS_ERROR; 14381 } 14382 if (CTL_HA_STATE_IS_SINGLE(state)) 14383 ctl_is_single = 1; 14384 14385 c->state = state; 14386 c->status = ret; 14387 return ret; 14388} 14389 14390/* 14391 * Quiesce component 14392 * The component must clear any error conditions (set status to OK) and 14393 * prepare itself to another Start call 14394 * returns ctl_ha_comp_status: 14395 * OK 14396 * ERROR 14397 */ 14398static ctl_ha_comp_status 14399ctl_isc_quiesce(struct ctl_ha_component *c) 14400{ 14401 int ret = CTL_HA_COMP_STATUS_OK; 14402 14403 ctl_pause_rtr = 1; 14404 c->status = ret; 14405 return ret; 14406} 14407 14408struct ctl_ha_component ctl_ha_component_ctlisc = 14409{ 14410 .name = "CTL ISC", 14411 .state = CTL_HA_STATE_UNKNOWN, 14412 .init = ctl_isc_init, 14413 .start = ctl_isc_start, 14414 .quiesce = ctl_isc_quiesce 14415}; 14416 14417/* 14418 * vim: ts=8 14419 */ 14420