ctl.c revision 272625
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 272625 2014-10-06 12:49:07Z 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*/0, 284 /*eca_and_aen*/0, 285 /*flags4*/SCP_TAS, 286 /*aen_holdoff_period*/{0, 0}, 287 /*busy_timeout_period*/{0, 0}, 288 /*extended_selftest_completion_time*/{0, 0} 289}; 290 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*/0, 296 /*eca_and_aen*/0, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301}; 302 303 304/* 305 * XXX KDM move these into the softc. 306 */ 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 verbose = 0; 319TUNABLE_INT("kern.cam.ctl.verbose", &verbose); 320SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 321 &verbose, 0, "Show SCSI errors returned to initiator"); 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, uint32_t *len); 396static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 397static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 398 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); 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); 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 int 2243ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2244 struct thread *td) 2245{ 2246 struct ctl_softc *softc; 2247 int retval; 2248 2249 softc = control_softc; 2250 2251 retval = 0; 2252 2253 switch (cmd) { 2254 case CTL_IO: { 2255 union ctl_io *io; 2256 void *pool_tmp; 2257 2258 /* 2259 * If we haven't been "enabled", don't allow any SCSI I/O 2260 * to this FETD. 2261 */ 2262 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2263 retval = EPERM; 2264 break; 2265 } 2266 2267 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2268 if (io == NULL) { 2269 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2270 retval = ENOSPC; 2271 break; 2272 } 2273 2274 /* 2275 * Need to save the pool reference so it doesn't get 2276 * spammed by the user's ctl_io. 2277 */ 2278 pool_tmp = io->io_hdr.pool; 2279 2280 memcpy(io, (void *)addr, sizeof(*io)); 2281 2282 io->io_hdr.pool = pool_tmp; 2283 /* 2284 * No status yet, so make sure the status is set properly. 2285 */ 2286 io->io_hdr.status = CTL_STATUS_NONE; 2287 2288 /* 2289 * The user sets the initiator ID, target and LUN IDs. 2290 */ 2291 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2292 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2293 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2294 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2295 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2296 2297 retval = ctl_ioctl_submit_wait(io); 2298 2299 if (retval != 0) { 2300 ctl_free_io(io); 2301 break; 2302 } 2303 2304 memcpy((void *)addr, io, sizeof(*io)); 2305 2306 /* return this to our pool */ 2307 ctl_free_io(io); 2308 2309 break; 2310 } 2311 case CTL_ENABLE_PORT: 2312 case CTL_DISABLE_PORT: 2313 case CTL_SET_PORT_WWNS: { 2314 struct ctl_port *port; 2315 struct ctl_port_entry *entry; 2316 2317 entry = (struct ctl_port_entry *)addr; 2318 2319 mtx_lock(&softc->ctl_lock); 2320 STAILQ_FOREACH(port, &softc->port_list, links) { 2321 int action, done; 2322 2323 action = 0; 2324 done = 0; 2325 2326 if ((entry->port_type == CTL_PORT_NONE) 2327 && (entry->targ_port == port->targ_port)) { 2328 /* 2329 * If the user only wants to enable or 2330 * disable or set WWNs on a specific port, 2331 * do the operation and we're done. 2332 */ 2333 action = 1; 2334 done = 1; 2335 } else if (entry->port_type & port->port_type) { 2336 /* 2337 * Compare the user's type mask with the 2338 * particular frontend type to see if we 2339 * have a match. 2340 */ 2341 action = 1; 2342 done = 0; 2343 2344 /* 2345 * Make sure the user isn't trying to set 2346 * WWNs on multiple ports at the same time. 2347 */ 2348 if (cmd == CTL_SET_PORT_WWNS) { 2349 printf("%s: Can't set WWNs on " 2350 "multiple ports\n", __func__); 2351 retval = EINVAL; 2352 break; 2353 } 2354 } 2355 if (action != 0) { 2356 /* 2357 * XXX KDM we have to drop the lock here, 2358 * because the online/offline operations 2359 * can potentially block. We need to 2360 * reference count the frontends so they 2361 * can't go away, 2362 */ 2363 mtx_unlock(&softc->ctl_lock); 2364 2365 if (cmd == CTL_ENABLE_PORT) { 2366 struct ctl_lun *lun; 2367 2368 STAILQ_FOREACH(lun, &softc->lun_list, 2369 links) { 2370 port->lun_enable(port->targ_lun_arg, 2371 lun->target, 2372 lun->lun); 2373 } 2374 2375 ctl_port_online(port); 2376 } else if (cmd == CTL_DISABLE_PORT) { 2377 struct ctl_lun *lun; 2378 2379 ctl_port_offline(port); 2380 2381 STAILQ_FOREACH(lun, &softc->lun_list, 2382 links) { 2383 port->lun_disable( 2384 port->targ_lun_arg, 2385 lun->target, 2386 lun->lun); 2387 } 2388 } 2389 2390 mtx_lock(&softc->ctl_lock); 2391 2392 if (cmd == CTL_SET_PORT_WWNS) 2393 ctl_port_set_wwns(port, 2394 (entry->flags & CTL_PORT_WWNN_VALID) ? 2395 1 : 0, entry->wwnn, 2396 (entry->flags & CTL_PORT_WWPN_VALID) ? 2397 1 : 0, entry->wwpn); 2398 } 2399 if (done != 0) 2400 break; 2401 } 2402 mtx_unlock(&softc->ctl_lock); 2403 break; 2404 } 2405 case CTL_GET_PORT_LIST: { 2406 struct ctl_port *port; 2407 struct ctl_port_list *list; 2408 int i; 2409 2410 list = (struct ctl_port_list *)addr; 2411 2412 if (list->alloc_len != (list->alloc_num * 2413 sizeof(struct ctl_port_entry))) { 2414 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2415 "alloc_num %u * sizeof(struct ctl_port_entry) " 2416 "%zu\n", __func__, list->alloc_len, 2417 list->alloc_num, sizeof(struct ctl_port_entry)); 2418 retval = EINVAL; 2419 break; 2420 } 2421 list->fill_len = 0; 2422 list->fill_num = 0; 2423 list->dropped_num = 0; 2424 i = 0; 2425 mtx_lock(&softc->ctl_lock); 2426 STAILQ_FOREACH(port, &softc->port_list, links) { 2427 struct ctl_port_entry entry, *list_entry; 2428 2429 if (list->fill_num >= list->alloc_num) { 2430 list->dropped_num++; 2431 continue; 2432 } 2433 2434 entry.port_type = port->port_type; 2435 strlcpy(entry.port_name, port->port_name, 2436 sizeof(entry.port_name)); 2437 entry.targ_port = port->targ_port; 2438 entry.physical_port = port->physical_port; 2439 entry.virtual_port = port->virtual_port; 2440 entry.wwnn = port->wwnn; 2441 entry.wwpn = port->wwpn; 2442 if (port->status & CTL_PORT_STATUS_ONLINE) 2443 entry.online = 1; 2444 else 2445 entry.online = 0; 2446 2447 list_entry = &list->entries[i]; 2448 2449 retval = copyout(&entry, list_entry, sizeof(entry)); 2450 if (retval != 0) { 2451 printf("%s: CTL_GET_PORT_LIST: copyout " 2452 "returned %d\n", __func__, retval); 2453 break; 2454 } 2455 i++; 2456 list->fill_num++; 2457 list->fill_len += sizeof(entry); 2458 } 2459 mtx_unlock(&softc->ctl_lock); 2460 2461 /* 2462 * If this is non-zero, we had a copyout fault, so there's 2463 * probably no point in attempting to set the status inside 2464 * the structure. 2465 */ 2466 if (retval != 0) 2467 break; 2468 2469 if (list->dropped_num > 0) 2470 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2471 else 2472 list->status = CTL_PORT_LIST_OK; 2473 break; 2474 } 2475 case CTL_DUMP_OOA: { 2476 struct ctl_lun *lun; 2477 union ctl_io *io; 2478 char printbuf[128]; 2479 struct sbuf sb; 2480 2481 mtx_lock(&softc->ctl_lock); 2482 printf("Dumping OOA queues:\n"); 2483 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2484 mtx_lock(&lun->lun_lock); 2485 for (io = (union ctl_io *)TAILQ_FIRST( 2486 &lun->ooa_queue); io != NULL; 2487 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2488 ooa_links)) { 2489 sbuf_new(&sb, printbuf, sizeof(printbuf), 2490 SBUF_FIXEDLEN); 2491 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2492 (intmax_t)lun->lun, 2493 io->scsiio.tag_num, 2494 (io->io_hdr.flags & 2495 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2496 (io->io_hdr.flags & 2497 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2498 (io->io_hdr.flags & 2499 CTL_FLAG_ABORT) ? " ABORT" : "", 2500 (io->io_hdr.flags & 2501 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2502 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2503 sbuf_finish(&sb); 2504 printf("%s\n", sbuf_data(&sb)); 2505 } 2506 mtx_unlock(&lun->lun_lock); 2507 } 2508 printf("OOA queues dump done\n"); 2509 mtx_unlock(&softc->ctl_lock); 2510 break; 2511 } 2512 case CTL_GET_OOA: { 2513 struct ctl_lun *lun; 2514 struct ctl_ooa *ooa_hdr; 2515 struct ctl_ooa_entry *entries; 2516 uint32_t cur_fill_num; 2517 2518 ooa_hdr = (struct ctl_ooa *)addr; 2519 2520 if ((ooa_hdr->alloc_len == 0) 2521 || (ooa_hdr->alloc_num == 0)) { 2522 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2523 "must be non-zero\n", __func__, 2524 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2525 retval = EINVAL; 2526 break; 2527 } 2528 2529 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2530 sizeof(struct ctl_ooa_entry))) { 2531 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2532 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2533 __func__, ooa_hdr->alloc_len, 2534 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2535 retval = EINVAL; 2536 break; 2537 } 2538 2539 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2540 if (entries == NULL) { 2541 printf("%s: could not allocate %d bytes for OOA " 2542 "dump\n", __func__, ooa_hdr->alloc_len); 2543 retval = ENOMEM; 2544 break; 2545 } 2546 2547 mtx_lock(&softc->ctl_lock); 2548 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2549 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2550 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2551 mtx_unlock(&softc->ctl_lock); 2552 free(entries, M_CTL); 2553 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2554 __func__, (uintmax_t)ooa_hdr->lun_num); 2555 retval = EINVAL; 2556 break; 2557 } 2558 2559 cur_fill_num = 0; 2560 2561 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2562 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2563 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2564 ooa_hdr, entries); 2565 if (retval != 0) 2566 break; 2567 } 2568 if (retval != 0) { 2569 mtx_unlock(&softc->ctl_lock); 2570 free(entries, M_CTL); 2571 break; 2572 } 2573 } else { 2574 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2575 2576 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2577 entries); 2578 } 2579 mtx_unlock(&softc->ctl_lock); 2580 2581 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2582 ooa_hdr->fill_len = ooa_hdr->fill_num * 2583 sizeof(struct ctl_ooa_entry); 2584 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2585 if (retval != 0) { 2586 printf("%s: error copying out %d bytes for OOA dump\n", 2587 __func__, ooa_hdr->fill_len); 2588 } 2589 2590 getbintime(&ooa_hdr->cur_bt); 2591 2592 if (cur_fill_num > ooa_hdr->alloc_num) { 2593 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2594 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2595 } else { 2596 ooa_hdr->dropped_num = 0; 2597 ooa_hdr->status = CTL_OOA_OK; 2598 } 2599 2600 free(entries, M_CTL); 2601 break; 2602 } 2603 case CTL_CHECK_OOA: { 2604 union ctl_io *io; 2605 struct ctl_lun *lun; 2606 struct ctl_ooa_info *ooa_info; 2607 2608 2609 ooa_info = (struct ctl_ooa_info *)addr; 2610 2611 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2612 ooa_info->status = CTL_OOA_INVALID_LUN; 2613 break; 2614 } 2615 mtx_lock(&softc->ctl_lock); 2616 lun = softc->ctl_luns[ooa_info->lun_id]; 2617 if (lun == NULL) { 2618 mtx_unlock(&softc->ctl_lock); 2619 ooa_info->status = CTL_OOA_INVALID_LUN; 2620 break; 2621 } 2622 mtx_lock(&lun->lun_lock); 2623 mtx_unlock(&softc->ctl_lock); 2624 ooa_info->num_entries = 0; 2625 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2626 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2627 &io->io_hdr, ooa_links)) { 2628 ooa_info->num_entries++; 2629 } 2630 mtx_unlock(&lun->lun_lock); 2631 2632 ooa_info->status = CTL_OOA_SUCCESS; 2633 2634 break; 2635 } 2636 case CTL_HARD_START: 2637 case CTL_HARD_STOP: { 2638 struct ctl_fe_ioctl_startstop_info ss_info; 2639 struct cfi_metatask *metatask; 2640 struct mtx hs_mtx; 2641 2642 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2643 2644 cv_init(&ss_info.sem, "hard start/stop cv" ); 2645 2646 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2647 if (metatask == NULL) { 2648 retval = ENOMEM; 2649 mtx_destroy(&hs_mtx); 2650 break; 2651 } 2652 2653 if (cmd == CTL_HARD_START) 2654 metatask->tasktype = CFI_TASK_STARTUP; 2655 else 2656 metatask->tasktype = CFI_TASK_SHUTDOWN; 2657 2658 metatask->callback = ctl_ioctl_hard_startstop_callback; 2659 metatask->callback_arg = &ss_info; 2660 2661 cfi_action(metatask); 2662 2663 /* Wait for the callback */ 2664 mtx_lock(&hs_mtx); 2665 cv_wait_sig(&ss_info.sem, &hs_mtx); 2666 mtx_unlock(&hs_mtx); 2667 2668 /* 2669 * All information has been copied from the metatask by the 2670 * time cv_broadcast() is called, so we free the metatask here. 2671 */ 2672 cfi_free_metatask(metatask); 2673 2674 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2675 2676 mtx_destroy(&hs_mtx); 2677 break; 2678 } 2679 case CTL_BBRREAD: { 2680 struct ctl_bbrread_info *bbr_info; 2681 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2682 struct mtx bbr_mtx; 2683 struct cfi_metatask *metatask; 2684 2685 bbr_info = (struct ctl_bbrread_info *)addr; 2686 2687 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2688 2689 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2690 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2691 2692 fe_bbr_info.bbr_info = bbr_info; 2693 fe_bbr_info.lock = &bbr_mtx; 2694 2695 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2696 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2697 2698 if (metatask == NULL) { 2699 mtx_destroy(&bbr_mtx); 2700 cv_destroy(&fe_bbr_info.sem); 2701 retval = ENOMEM; 2702 break; 2703 } 2704 metatask->tasktype = CFI_TASK_BBRREAD; 2705 metatask->callback = ctl_ioctl_bbrread_callback; 2706 metatask->callback_arg = &fe_bbr_info; 2707 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2708 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2709 metatask->taskinfo.bbrread.len = bbr_info->len; 2710 2711 cfi_action(metatask); 2712 2713 mtx_lock(&bbr_mtx); 2714 while (fe_bbr_info.wakeup_done == 0) 2715 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2716 mtx_unlock(&bbr_mtx); 2717 2718 bbr_info->status = metatask->status; 2719 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2720 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2721 memcpy(&bbr_info->sense_data, 2722 &metatask->taskinfo.bbrread.sense_data, 2723 ctl_min(sizeof(bbr_info->sense_data), 2724 sizeof(metatask->taskinfo.bbrread.sense_data))); 2725 2726 cfi_free_metatask(metatask); 2727 2728 mtx_destroy(&bbr_mtx); 2729 cv_destroy(&fe_bbr_info.sem); 2730 2731 break; 2732 } 2733 case CTL_DELAY_IO: { 2734 struct ctl_io_delay_info *delay_info; 2735#ifdef CTL_IO_DELAY 2736 struct ctl_lun *lun; 2737#endif /* CTL_IO_DELAY */ 2738 2739 delay_info = (struct ctl_io_delay_info *)addr; 2740 2741#ifdef CTL_IO_DELAY 2742 mtx_lock(&softc->ctl_lock); 2743 2744 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2745 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2746 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2747 } else { 2748 lun = softc->ctl_luns[delay_info->lun_id]; 2749 mtx_lock(&lun->lun_lock); 2750 2751 delay_info->status = CTL_DELAY_STATUS_OK; 2752 2753 switch (delay_info->delay_type) { 2754 case CTL_DELAY_TYPE_CONT: 2755 break; 2756 case CTL_DELAY_TYPE_ONESHOT: 2757 break; 2758 default: 2759 delay_info->status = 2760 CTL_DELAY_STATUS_INVALID_TYPE; 2761 break; 2762 } 2763 2764 switch (delay_info->delay_loc) { 2765 case CTL_DELAY_LOC_DATAMOVE: 2766 lun->delay_info.datamove_type = 2767 delay_info->delay_type; 2768 lun->delay_info.datamove_delay = 2769 delay_info->delay_secs; 2770 break; 2771 case CTL_DELAY_LOC_DONE: 2772 lun->delay_info.done_type = 2773 delay_info->delay_type; 2774 lun->delay_info.done_delay = 2775 delay_info->delay_secs; 2776 break; 2777 default: 2778 delay_info->status = 2779 CTL_DELAY_STATUS_INVALID_LOC; 2780 break; 2781 } 2782 mtx_unlock(&lun->lun_lock); 2783 } 2784 2785 mtx_unlock(&softc->ctl_lock); 2786#else 2787 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2788#endif /* CTL_IO_DELAY */ 2789 break; 2790 } 2791 case CTL_REALSYNC_SET: { 2792 int *syncstate; 2793 2794 syncstate = (int *)addr; 2795 2796 mtx_lock(&softc->ctl_lock); 2797 switch (*syncstate) { 2798 case 0: 2799 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2800 break; 2801 case 1: 2802 softc->flags |= CTL_FLAG_REAL_SYNC; 2803 break; 2804 default: 2805 retval = EINVAL; 2806 break; 2807 } 2808 mtx_unlock(&softc->ctl_lock); 2809 break; 2810 } 2811 case CTL_REALSYNC_GET: { 2812 int *syncstate; 2813 2814 syncstate = (int*)addr; 2815 2816 mtx_lock(&softc->ctl_lock); 2817 if (softc->flags & CTL_FLAG_REAL_SYNC) 2818 *syncstate = 1; 2819 else 2820 *syncstate = 0; 2821 mtx_unlock(&softc->ctl_lock); 2822 2823 break; 2824 } 2825 case CTL_SETSYNC: 2826 case CTL_GETSYNC: { 2827 struct ctl_sync_info *sync_info; 2828 struct ctl_lun *lun; 2829 2830 sync_info = (struct ctl_sync_info *)addr; 2831 2832 mtx_lock(&softc->ctl_lock); 2833 lun = softc->ctl_luns[sync_info->lun_id]; 2834 if (lun == NULL) { 2835 mtx_unlock(&softc->ctl_lock); 2836 sync_info->status = CTL_GS_SYNC_NO_LUN; 2837 } 2838 /* 2839 * Get or set the sync interval. We're not bounds checking 2840 * in the set case, hopefully the user won't do something 2841 * silly. 2842 */ 2843 mtx_lock(&lun->lun_lock); 2844 mtx_unlock(&softc->ctl_lock); 2845 if (cmd == CTL_GETSYNC) 2846 sync_info->sync_interval = lun->sync_interval; 2847 else 2848 lun->sync_interval = sync_info->sync_interval; 2849 mtx_unlock(&lun->lun_lock); 2850 2851 sync_info->status = CTL_GS_SYNC_OK; 2852 2853 break; 2854 } 2855 case CTL_GETSTATS: { 2856 struct ctl_stats *stats; 2857 struct ctl_lun *lun; 2858 int i; 2859 2860 stats = (struct ctl_stats *)addr; 2861 2862 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2863 stats->alloc_len) { 2864 stats->status = CTL_SS_NEED_MORE_SPACE; 2865 stats->num_luns = softc->num_luns; 2866 break; 2867 } 2868 /* 2869 * XXX KDM no locking here. If the LUN list changes, 2870 * things can blow up. 2871 */ 2872 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2873 i++, lun = STAILQ_NEXT(lun, links)) { 2874 retval = copyout(&lun->stats, &stats->lun_stats[i], 2875 sizeof(lun->stats)); 2876 if (retval != 0) 2877 break; 2878 } 2879 stats->num_luns = softc->num_luns; 2880 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2881 softc->num_luns; 2882 stats->status = CTL_SS_OK; 2883#ifdef CTL_TIME_IO 2884 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2885#else 2886 stats->flags = CTL_STATS_FLAG_NONE; 2887#endif 2888 getnanouptime(&stats->timestamp); 2889 break; 2890 } 2891 case CTL_ERROR_INJECT: { 2892 struct ctl_error_desc *err_desc, *new_err_desc; 2893 struct ctl_lun *lun; 2894 2895 err_desc = (struct ctl_error_desc *)addr; 2896 2897 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2898 M_WAITOK | M_ZERO); 2899 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2900 2901 mtx_lock(&softc->ctl_lock); 2902 lun = softc->ctl_luns[err_desc->lun_id]; 2903 if (lun == NULL) { 2904 mtx_unlock(&softc->ctl_lock); 2905 free(new_err_desc, M_CTL); 2906 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2907 __func__, (uintmax_t)err_desc->lun_id); 2908 retval = EINVAL; 2909 break; 2910 } 2911 mtx_lock(&lun->lun_lock); 2912 mtx_unlock(&softc->ctl_lock); 2913 2914 /* 2915 * We could do some checking here to verify the validity 2916 * of the request, but given the complexity of error 2917 * injection requests, the checking logic would be fairly 2918 * complex. 2919 * 2920 * For now, if the request is invalid, it just won't get 2921 * executed and might get deleted. 2922 */ 2923 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2924 2925 /* 2926 * XXX KDM check to make sure the serial number is unique, 2927 * in case we somehow manage to wrap. That shouldn't 2928 * happen for a very long time, but it's the right thing to 2929 * do. 2930 */ 2931 new_err_desc->serial = lun->error_serial; 2932 err_desc->serial = lun->error_serial; 2933 lun->error_serial++; 2934 2935 mtx_unlock(&lun->lun_lock); 2936 break; 2937 } 2938 case CTL_ERROR_INJECT_DELETE: { 2939 struct ctl_error_desc *delete_desc, *desc, *desc2; 2940 struct ctl_lun *lun; 2941 int delete_done; 2942 2943 delete_desc = (struct ctl_error_desc *)addr; 2944 delete_done = 0; 2945 2946 mtx_lock(&softc->ctl_lock); 2947 lun = softc->ctl_luns[delete_desc->lun_id]; 2948 if (lun == NULL) { 2949 mtx_unlock(&softc->ctl_lock); 2950 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2951 __func__, (uintmax_t)delete_desc->lun_id); 2952 retval = EINVAL; 2953 break; 2954 } 2955 mtx_lock(&lun->lun_lock); 2956 mtx_unlock(&softc->ctl_lock); 2957 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2958 if (desc->serial != delete_desc->serial) 2959 continue; 2960 2961 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2962 links); 2963 free(desc, M_CTL); 2964 delete_done = 1; 2965 } 2966 mtx_unlock(&lun->lun_lock); 2967 if (delete_done == 0) { 2968 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2969 "error serial %ju on LUN %u\n", __func__, 2970 delete_desc->serial, delete_desc->lun_id); 2971 retval = EINVAL; 2972 break; 2973 } 2974 break; 2975 } 2976 case CTL_DUMP_STRUCTS: { 2977 int i, j, k, idx; 2978 struct ctl_port *port; 2979 struct ctl_frontend *fe; 2980 2981 mtx_lock(&softc->ctl_lock); 2982 printf("CTL Persistent Reservation information start:\n"); 2983 for (i = 0; i < CTL_MAX_LUNS; i++) { 2984 struct ctl_lun *lun; 2985 2986 lun = softc->ctl_luns[i]; 2987 2988 if ((lun == NULL) 2989 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2990 continue; 2991 2992 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2993 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2994 idx = j * CTL_MAX_INIT_PER_PORT + k; 2995 if (lun->per_res[idx].registered == 0) 2996 continue; 2997 printf(" LUN %d port %d iid %d key " 2998 "%#jx\n", i, j, k, 2999 (uintmax_t)scsi_8btou64( 3000 lun->per_res[idx].res_key.key)); 3001 } 3002 } 3003 } 3004 printf("CTL Persistent Reservation information end\n"); 3005 printf("CTL Ports:\n"); 3006 STAILQ_FOREACH(port, &softc->port_list, links) { 3007 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3008 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3009 port->frontend->name, port->port_type, 3010 port->physical_port, port->virtual_port, 3011 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3012 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3013 if (port->wwpn_iid[j].in_use == 0 && 3014 port->wwpn_iid[j].wwpn == 0 && 3015 port->wwpn_iid[j].name == NULL) 3016 continue; 3017 3018 printf(" iid %u use %d WWPN %#jx '%s'\n", 3019 j, port->wwpn_iid[j].in_use, 3020 (uintmax_t)port->wwpn_iid[j].wwpn, 3021 port->wwpn_iid[j].name); 3022 } 3023 } 3024 printf("CTL Port information end\n"); 3025 mtx_unlock(&softc->ctl_lock); 3026 /* 3027 * XXX KDM calling this without a lock. We'd likely want 3028 * to drop the lock before calling the frontend's dump 3029 * routine anyway. 3030 */ 3031 printf("CTL Frontends:\n"); 3032 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3033 printf(" Frontend '%s'\n", fe->name); 3034 if (fe->fe_dump != NULL) 3035 fe->fe_dump(); 3036 } 3037 printf("CTL Frontend information end\n"); 3038 break; 3039 } 3040 case CTL_LUN_REQ: { 3041 struct ctl_lun_req *lun_req; 3042 struct ctl_backend_driver *backend; 3043 3044 lun_req = (struct ctl_lun_req *)addr; 3045 3046 backend = ctl_backend_find(lun_req->backend); 3047 if (backend == NULL) { 3048 lun_req->status = CTL_LUN_ERROR; 3049 snprintf(lun_req->error_str, 3050 sizeof(lun_req->error_str), 3051 "Backend \"%s\" not found.", 3052 lun_req->backend); 3053 break; 3054 } 3055 if (lun_req->num_be_args > 0) { 3056 lun_req->kern_be_args = ctl_copyin_args( 3057 lun_req->num_be_args, 3058 lun_req->be_args, 3059 lun_req->error_str, 3060 sizeof(lun_req->error_str)); 3061 if (lun_req->kern_be_args == NULL) { 3062 lun_req->status = CTL_LUN_ERROR; 3063 break; 3064 } 3065 } 3066 3067 retval = backend->ioctl(dev, cmd, addr, flag, td); 3068 3069 if (lun_req->num_be_args > 0) { 3070 ctl_copyout_args(lun_req->num_be_args, 3071 lun_req->kern_be_args); 3072 ctl_free_args(lun_req->num_be_args, 3073 lun_req->kern_be_args); 3074 } 3075 break; 3076 } 3077 case CTL_LUN_LIST: { 3078 struct sbuf *sb; 3079 struct ctl_lun *lun; 3080 struct ctl_lun_list *list; 3081 struct ctl_option *opt; 3082 3083 list = (struct ctl_lun_list *)addr; 3084 3085 /* 3086 * Allocate a fixed length sbuf here, based on the length 3087 * of the user's buffer. We could allocate an auto-extending 3088 * buffer, and then tell the user how much larger our 3089 * amount of data is than his buffer, but that presents 3090 * some problems: 3091 * 3092 * 1. The sbuf(9) routines use a blocking malloc, and so 3093 * we can't hold a lock while calling them with an 3094 * auto-extending buffer. 3095 * 3096 * 2. There is not currently a LUN reference counting 3097 * mechanism, outside of outstanding transactions on 3098 * the LUN's OOA queue. So a LUN could go away on us 3099 * while we're getting the LUN number, backend-specific 3100 * information, etc. Thus, given the way things 3101 * currently work, we need to hold the CTL lock while 3102 * grabbing LUN information. 3103 * 3104 * So, from the user's standpoint, the best thing to do is 3105 * allocate what he thinks is a reasonable buffer length, 3106 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3107 * double the buffer length and try again. (And repeat 3108 * that until he succeeds.) 3109 */ 3110 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3111 if (sb == NULL) { 3112 list->status = CTL_LUN_LIST_ERROR; 3113 snprintf(list->error_str, sizeof(list->error_str), 3114 "Unable to allocate %d bytes for LUN list", 3115 list->alloc_len); 3116 break; 3117 } 3118 3119 sbuf_printf(sb, "<ctllunlist>\n"); 3120 3121 mtx_lock(&softc->ctl_lock); 3122 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3123 mtx_lock(&lun->lun_lock); 3124 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3125 (uintmax_t)lun->lun); 3126 3127 /* 3128 * Bail out as soon as we see that we've overfilled 3129 * the buffer. 3130 */ 3131 if (retval != 0) 3132 break; 3133 3134 retval = sbuf_printf(sb, "\t<backend_type>%s" 3135 "</backend_type>\n", 3136 (lun->backend == NULL) ? "none" : 3137 lun->backend->name); 3138 3139 if (retval != 0) 3140 break; 3141 3142 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3143 lun->be_lun->lun_type); 3144 3145 if (retval != 0) 3146 break; 3147 3148 if (lun->backend == NULL) { 3149 retval = sbuf_printf(sb, "</lun>\n"); 3150 if (retval != 0) 3151 break; 3152 continue; 3153 } 3154 3155 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3156 (lun->be_lun->maxlba > 0) ? 3157 lun->be_lun->maxlba + 1 : 0); 3158 3159 if (retval != 0) 3160 break; 3161 3162 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3163 lun->be_lun->blocksize); 3164 3165 if (retval != 0) 3166 break; 3167 3168 retval = sbuf_printf(sb, "\t<serial_number>"); 3169 3170 if (retval != 0) 3171 break; 3172 3173 retval = ctl_sbuf_printf_esc(sb, 3174 lun->be_lun->serial_num); 3175 3176 if (retval != 0) 3177 break; 3178 3179 retval = sbuf_printf(sb, "</serial_number>\n"); 3180 3181 if (retval != 0) 3182 break; 3183 3184 retval = sbuf_printf(sb, "\t<device_id>"); 3185 3186 if (retval != 0) 3187 break; 3188 3189 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3190 3191 if (retval != 0) 3192 break; 3193 3194 retval = sbuf_printf(sb, "</device_id>\n"); 3195 3196 if (retval != 0) 3197 break; 3198 3199 if (lun->backend->lun_info != NULL) { 3200 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3201 if (retval != 0) 3202 break; 3203 } 3204 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3205 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3206 opt->name, opt->value, opt->name); 3207 if (retval != 0) 3208 break; 3209 } 3210 3211 retval = sbuf_printf(sb, "</lun>\n"); 3212 3213 if (retval != 0) 3214 break; 3215 mtx_unlock(&lun->lun_lock); 3216 } 3217 if (lun != NULL) 3218 mtx_unlock(&lun->lun_lock); 3219 mtx_unlock(&softc->ctl_lock); 3220 3221 if ((retval != 0) 3222 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3223 retval = 0; 3224 sbuf_delete(sb); 3225 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3226 snprintf(list->error_str, sizeof(list->error_str), 3227 "Out of space, %d bytes is too small", 3228 list->alloc_len); 3229 break; 3230 } 3231 3232 sbuf_finish(sb); 3233 3234 retval = copyout(sbuf_data(sb), list->lun_xml, 3235 sbuf_len(sb) + 1); 3236 3237 list->fill_len = sbuf_len(sb) + 1; 3238 list->status = CTL_LUN_LIST_OK; 3239 sbuf_delete(sb); 3240 break; 3241 } 3242 case CTL_ISCSI: { 3243 struct ctl_iscsi *ci; 3244 struct ctl_frontend *fe; 3245 3246 ci = (struct ctl_iscsi *)addr; 3247 3248 fe = ctl_frontend_find("iscsi"); 3249 if (fe == NULL) { 3250 ci->status = CTL_ISCSI_ERROR; 3251 snprintf(ci->error_str, sizeof(ci->error_str), 3252 "Frontend \"iscsi\" not found."); 3253 break; 3254 } 3255 3256 retval = fe->ioctl(dev, cmd, addr, flag, td); 3257 break; 3258 } 3259 case CTL_PORT_REQ: { 3260 struct ctl_req *req; 3261 struct ctl_frontend *fe; 3262 3263 req = (struct ctl_req *)addr; 3264 3265 fe = ctl_frontend_find(req->driver); 3266 if (fe == NULL) { 3267 req->status = CTL_LUN_ERROR; 3268 snprintf(req->error_str, sizeof(req->error_str), 3269 "Frontend \"%s\" not found.", req->driver); 3270 break; 3271 } 3272 if (req->num_args > 0) { 3273 req->kern_args = ctl_copyin_args(req->num_args, 3274 req->args, req->error_str, sizeof(req->error_str)); 3275 if (req->kern_args == NULL) { 3276 req->status = CTL_LUN_ERROR; 3277 break; 3278 } 3279 } 3280 3281 retval = fe->ioctl(dev, cmd, addr, flag, td); 3282 3283 if (req->num_args > 0) { 3284 ctl_copyout_args(req->num_args, req->kern_args); 3285 ctl_free_args(req->num_args, req->kern_args); 3286 } 3287 break; 3288 } 3289 case CTL_PORT_LIST: { 3290 struct sbuf *sb; 3291 struct ctl_port *port; 3292 struct ctl_lun_list *list; 3293 struct ctl_option *opt; 3294 3295 list = (struct ctl_lun_list *)addr; 3296 3297 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3298 if (sb == NULL) { 3299 list->status = CTL_LUN_LIST_ERROR; 3300 snprintf(list->error_str, sizeof(list->error_str), 3301 "Unable to allocate %d bytes for LUN list", 3302 list->alloc_len); 3303 break; 3304 } 3305 3306 sbuf_printf(sb, "<ctlportlist>\n"); 3307 3308 mtx_lock(&softc->ctl_lock); 3309 STAILQ_FOREACH(port, &softc->port_list, links) { 3310 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3311 (uintmax_t)port->targ_port); 3312 3313 /* 3314 * Bail out as soon as we see that we've overfilled 3315 * the buffer. 3316 */ 3317 if (retval != 0) 3318 break; 3319 3320 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3321 "</frontend_type>\n", port->frontend->name); 3322 if (retval != 0) 3323 break; 3324 3325 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3326 port->port_type); 3327 if (retval != 0) 3328 break; 3329 3330 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3331 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3332 if (retval != 0) 3333 break; 3334 3335 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3336 port->port_name); 3337 if (retval != 0) 3338 break; 3339 3340 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3341 port->physical_port); 3342 if (retval != 0) 3343 break; 3344 3345 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3346 port->virtual_port); 3347 if (retval != 0) 3348 break; 3349 3350 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3351 (uintmax_t)port->wwnn); 3352 if (retval != 0) 3353 break; 3354 3355 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3356 (uintmax_t)port->wwpn); 3357 if (retval != 0) 3358 break; 3359 3360 if (port->port_info != NULL) { 3361 retval = port->port_info(port->onoff_arg, sb); 3362 if (retval != 0) 3363 break; 3364 } 3365 STAILQ_FOREACH(opt, &port->options, links) { 3366 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3367 opt->name, opt->value, opt->name); 3368 if (retval != 0) 3369 break; 3370 } 3371 3372 retval = sbuf_printf(sb, "</targ_port>\n"); 3373 if (retval != 0) 3374 break; 3375 } 3376 mtx_unlock(&softc->ctl_lock); 3377 3378 if ((retval != 0) 3379 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3380 retval = 0; 3381 sbuf_delete(sb); 3382 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3383 snprintf(list->error_str, sizeof(list->error_str), 3384 "Out of space, %d bytes is too small", 3385 list->alloc_len); 3386 break; 3387 } 3388 3389 sbuf_finish(sb); 3390 3391 retval = copyout(sbuf_data(sb), list->lun_xml, 3392 sbuf_len(sb) + 1); 3393 3394 list->fill_len = sbuf_len(sb) + 1; 3395 list->status = CTL_LUN_LIST_OK; 3396 sbuf_delete(sb); 3397 break; 3398 } 3399 default: { 3400 /* XXX KDM should we fix this? */ 3401#if 0 3402 struct ctl_backend_driver *backend; 3403 unsigned int type; 3404 int found; 3405 3406 found = 0; 3407 3408 /* 3409 * We encode the backend type as the ioctl type for backend 3410 * ioctls. So parse it out here, and then search for a 3411 * backend of this type. 3412 */ 3413 type = _IOC_TYPE(cmd); 3414 3415 STAILQ_FOREACH(backend, &softc->be_list, links) { 3416 if (backend->type == type) { 3417 found = 1; 3418 break; 3419 } 3420 } 3421 if (found == 0) { 3422 printf("ctl: unknown ioctl command %#lx or backend " 3423 "%d\n", cmd, type); 3424 retval = EINVAL; 3425 break; 3426 } 3427 retval = backend->ioctl(dev, cmd, addr, flag, td); 3428#endif 3429 retval = ENOTTY; 3430 break; 3431 } 3432 } 3433 return (retval); 3434} 3435 3436uint32_t 3437ctl_get_initindex(struct ctl_nexus *nexus) 3438{ 3439 if (nexus->targ_port < CTL_MAX_PORTS) 3440 return (nexus->initid.id + 3441 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3442 else 3443 return (nexus->initid.id + 3444 ((nexus->targ_port - CTL_MAX_PORTS) * 3445 CTL_MAX_INIT_PER_PORT)); 3446} 3447 3448uint32_t 3449ctl_get_resindex(struct ctl_nexus *nexus) 3450{ 3451 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3452} 3453 3454uint32_t 3455ctl_port_idx(int port_num) 3456{ 3457 if (port_num < CTL_MAX_PORTS) 3458 return(port_num); 3459 else 3460 return(port_num - CTL_MAX_PORTS); 3461} 3462 3463static uint32_t 3464ctl_map_lun(int port_num, uint32_t lun_id) 3465{ 3466 struct ctl_port *port; 3467 3468 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3469 if (port == NULL) 3470 return (UINT32_MAX); 3471 if (port->lun_map == NULL) 3472 return (lun_id); 3473 return (port->lun_map(port->targ_lun_arg, lun_id)); 3474} 3475 3476static uint32_t 3477ctl_map_lun_back(int port_num, uint32_t lun_id) 3478{ 3479 struct ctl_port *port; 3480 uint32_t i; 3481 3482 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3483 if (port->lun_map == NULL) 3484 return (lun_id); 3485 for (i = 0; i < CTL_MAX_LUNS; i++) { 3486 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3487 return (i); 3488 } 3489 return (UINT32_MAX); 3490} 3491 3492/* 3493 * Note: This only works for bitmask sizes that are at least 32 bits, and 3494 * that are a power of 2. 3495 */ 3496int 3497ctl_ffz(uint32_t *mask, uint32_t size) 3498{ 3499 uint32_t num_chunks, num_pieces; 3500 int i, j; 3501 3502 num_chunks = (size >> 5); 3503 if (num_chunks == 0) 3504 num_chunks++; 3505 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3506 3507 for (i = 0; i < num_chunks; i++) { 3508 for (j = 0; j < num_pieces; j++) { 3509 if ((mask[i] & (1 << j)) == 0) 3510 return ((i << 5) + j); 3511 } 3512 } 3513 3514 return (-1); 3515} 3516 3517int 3518ctl_set_mask(uint32_t *mask, uint32_t bit) 3519{ 3520 uint32_t chunk, piece; 3521 3522 chunk = bit >> 5; 3523 piece = bit % (sizeof(uint32_t) * 8); 3524 3525 if ((mask[chunk] & (1 << piece)) != 0) 3526 return (-1); 3527 else 3528 mask[chunk] |= (1 << piece); 3529 3530 return (0); 3531} 3532 3533int 3534ctl_clear_mask(uint32_t *mask, uint32_t bit) 3535{ 3536 uint32_t chunk, piece; 3537 3538 chunk = bit >> 5; 3539 piece = bit % (sizeof(uint32_t) * 8); 3540 3541 if ((mask[chunk] & (1 << piece)) == 0) 3542 return (-1); 3543 else 3544 mask[chunk] &= ~(1 << piece); 3545 3546 return (0); 3547} 3548 3549int 3550ctl_is_set(uint32_t *mask, uint32_t bit) 3551{ 3552 uint32_t chunk, piece; 3553 3554 chunk = bit >> 5; 3555 piece = bit % (sizeof(uint32_t) * 8); 3556 3557 if ((mask[chunk] & (1 << piece)) == 0) 3558 return (0); 3559 else 3560 return (1); 3561} 3562 3563#ifdef unused 3564/* 3565 * The bus, target and lun are optional, they can be filled in later. 3566 * can_wait is used to determine whether we can wait on the malloc or not. 3567 */ 3568union ctl_io* 3569ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3570 uint32_t targ_lun, int can_wait) 3571{ 3572 union ctl_io *io; 3573 3574 if (can_wait) 3575 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3576 else 3577 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3578 3579 if (io != NULL) { 3580 io->io_hdr.io_type = io_type; 3581 io->io_hdr.targ_port = targ_port; 3582 /* 3583 * XXX KDM this needs to change/go away. We need to move 3584 * to a preallocated pool of ctl_scsiio structures. 3585 */ 3586 io->io_hdr.nexus.targ_target.id = targ_target; 3587 io->io_hdr.nexus.targ_lun = targ_lun; 3588 } 3589 3590 return (io); 3591} 3592 3593void 3594ctl_kfree_io(union ctl_io *io) 3595{ 3596 free(io, M_CTL); 3597} 3598#endif /* unused */ 3599 3600/* 3601 * ctl_softc, pool_type, total_ctl_io are passed in. 3602 * npool is passed out. 3603 */ 3604int 3605ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3606 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3607{ 3608 uint32_t i; 3609 union ctl_io *cur_io, *next_io; 3610 struct ctl_io_pool *pool; 3611 int retval; 3612 3613 retval = 0; 3614 3615 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3616 M_NOWAIT | M_ZERO); 3617 if (pool == NULL) { 3618 retval = ENOMEM; 3619 goto bailout; 3620 } 3621 3622 pool->type = pool_type; 3623 pool->ctl_softc = ctl_softc; 3624 3625 mtx_lock(&ctl_softc->pool_lock); 3626 pool->id = ctl_softc->cur_pool_id++; 3627 mtx_unlock(&ctl_softc->pool_lock); 3628 3629 pool->flags = CTL_POOL_FLAG_NONE; 3630 pool->refcount = 1; /* Reference for validity. */ 3631 STAILQ_INIT(&pool->free_queue); 3632 3633 /* 3634 * XXX KDM other options here: 3635 * - allocate a page at a time 3636 * - allocate one big chunk of memory. 3637 * Page allocation might work well, but would take a little more 3638 * tracking. 3639 */ 3640 for (i = 0; i < total_ctl_io; i++) { 3641 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3642 M_NOWAIT); 3643 if (cur_io == NULL) { 3644 retval = ENOMEM; 3645 break; 3646 } 3647 cur_io->io_hdr.pool = pool; 3648 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3649 pool->total_ctl_io++; 3650 pool->free_ctl_io++; 3651 } 3652 3653 if (retval != 0) { 3654 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3655 cur_io != NULL; cur_io = next_io) { 3656 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3657 links); 3658 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3659 ctl_io_hdr, links); 3660 free(cur_io, M_CTLIO); 3661 } 3662 3663 free(pool, M_CTL); 3664 goto bailout; 3665 } 3666 mtx_lock(&ctl_softc->pool_lock); 3667 ctl_softc->num_pools++; 3668 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3669 /* 3670 * Increment our usage count if this is an external consumer, so we 3671 * can't get unloaded until the external consumer (most likely a 3672 * FETD) unloads and frees his pool. 3673 * 3674 * XXX KDM will this increment the caller's module use count, or 3675 * mine? 3676 */ 3677#if 0 3678 if ((pool_type != CTL_POOL_EMERGENCY) 3679 && (pool_type != CTL_POOL_INTERNAL) 3680 && (pool_type != CTL_POOL_4OTHERSC)) 3681 MOD_INC_USE_COUNT; 3682#endif 3683 3684 mtx_unlock(&ctl_softc->pool_lock); 3685 3686 *npool = pool; 3687 3688bailout: 3689 3690 return (retval); 3691} 3692 3693static int 3694ctl_pool_acquire(struct ctl_io_pool *pool) 3695{ 3696 3697 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3698 3699 if (pool->flags & CTL_POOL_FLAG_INVALID) 3700 return (EINVAL); 3701 3702 pool->refcount++; 3703 3704 return (0); 3705} 3706 3707static void 3708ctl_pool_release(struct ctl_io_pool *pool) 3709{ 3710 struct ctl_softc *ctl_softc = pool->ctl_softc; 3711 union ctl_io *io; 3712 3713 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3714 3715 if (--pool->refcount != 0) 3716 return; 3717 3718 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3719 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3720 links); 3721 free(io, M_CTLIO); 3722 } 3723 3724 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3725 ctl_softc->num_pools--; 3726 3727 /* 3728 * XXX KDM will this decrement the caller's usage count or mine? 3729 */ 3730#if 0 3731 if ((pool->type != CTL_POOL_EMERGENCY) 3732 && (pool->type != CTL_POOL_INTERNAL) 3733 && (pool->type != CTL_POOL_4OTHERSC)) 3734 MOD_DEC_USE_COUNT; 3735#endif 3736 3737 free(pool, M_CTL); 3738} 3739 3740void 3741ctl_pool_free(struct ctl_io_pool *pool) 3742{ 3743 struct ctl_softc *ctl_softc; 3744 3745 if (pool == NULL) 3746 return; 3747 3748 ctl_softc = pool->ctl_softc; 3749 mtx_lock(&ctl_softc->pool_lock); 3750 pool->flags |= CTL_POOL_FLAG_INVALID; 3751 ctl_pool_release(pool); 3752 mtx_unlock(&ctl_softc->pool_lock); 3753} 3754 3755/* 3756 * This routine does not block (except for spinlocks of course). 3757 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3758 * possible. 3759 */ 3760union ctl_io * 3761ctl_alloc_io(void *pool_ref) 3762{ 3763 union ctl_io *io; 3764 struct ctl_softc *ctl_softc; 3765 struct ctl_io_pool *pool, *npool; 3766 struct ctl_io_pool *emergency_pool; 3767 3768 pool = (struct ctl_io_pool *)pool_ref; 3769 3770 if (pool == NULL) { 3771 printf("%s: pool is NULL\n", __func__); 3772 return (NULL); 3773 } 3774 3775 emergency_pool = NULL; 3776 3777 ctl_softc = pool->ctl_softc; 3778 3779 mtx_lock(&ctl_softc->pool_lock); 3780 /* 3781 * First, try to get the io structure from the user's pool. 3782 */ 3783 if (ctl_pool_acquire(pool) == 0) { 3784 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3785 if (io != NULL) { 3786 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3787 pool->total_allocated++; 3788 pool->free_ctl_io--; 3789 mtx_unlock(&ctl_softc->pool_lock); 3790 return (io); 3791 } else 3792 ctl_pool_release(pool); 3793 } 3794 /* 3795 * If he doesn't have any io structures left, search for an 3796 * emergency pool and grab one from there. 3797 */ 3798 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3799 if (npool->type != CTL_POOL_EMERGENCY) 3800 continue; 3801 3802 if (ctl_pool_acquire(npool) != 0) 3803 continue; 3804 3805 emergency_pool = npool; 3806 3807 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3808 if (io != NULL) { 3809 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3810 npool->total_allocated++; 3811 npool->free_ctl_io--; 3812 mtx_unlock(&ctl_softc->pool_lock); 3813 return (io); 3814 } else 3815 ctl_pool_release(npool); 3816 } 3817 3818 /* Drop the spinlock before we malloc */ 3819 mtx_unlock(&ctl_softc->pool_lock); 3820 3821 /* 3822 * The emergency pool (if it exists) didn't have one, so try an 3823 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3824 */ 3825 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3826 if (io != NULL) { 3827 /* 3828 * If the emergency pool exists but is empty, add this 3829 * ctl_io to its list when it gets freed. 3830 */ 3831 if (emergency_pool != NULL) { 3832 mtx_lock(&ctl_softc->pool_lock); 3833 if (ctl_pool_acquire(emergency_pool) == 0) { 3834 io->io_hdr.pool = emergency_pool; 3835 emergency_pool->total_ctl_io++; 3836 /* 3837 * Need to bump this, otherwise 3838 * total_allocated and total_freed won't 3839 * match when we no longer have anything 3840 * outstanding. 3841 */ 3842 emergency_pool->total_allocated++; 3843 } 3844 mtx_unlock(&ctl_softc->pool_lock); 3845 } else 3846 io->io_hdr.pool = NULL; 3847 } 3848 3849 return (io); 3850} 3851 3852void 3853ctl_free_io(union ctl_io *io) 3854{ 3855 if (io == NULL) 3856 return; 3857 3858 /* 3859 * If this ctl_io has a pool, return it to that pool. 3860 */ 3861 if (io->io_hdr.pool != NULL) { 3862 struct ctl_io_pool *pool; 3863 3864 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3865 mtx_lock(&pool->ctl_softc->pool_lock); 3866 io->io_hdr.io_type = 0xff; 3867 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3868 pool->total_freed++; 3869 pool->free_ctl_io++; 3870 ctl_pool_release(pool); 3871 mtx_unlock(&pool->ctl_softc->pool_lock); 3872 } else { 3873 /* 3874 * Otherwise, just free it. We probably malloced it and 3875 * the emergency pool wasn't available. 3876 */ 3877 free(io, M_CTLIO); 3878 } 3879 3880} 3881 3882void 3883ctl_zero_io(union ctl_io *io) 3884{ 3885 void *pool_ref; 3886 3887 if (io == NULL) 3888 return; 3889 3890 /* 3891 * May need to preserve linked list pointers at some point too. 3892 */ 3893 pool_ref = io->io_hdr.pool; 3894 3895 memset(io, 0, sizeof(*io)); 3896 3897 io->io_hdr.pool = pool_ref; 3898} 3899 3900/* 3901 * This routine is currently used for internal copies of ctl_ios that need 3902 * to persist for some reason after we've already returned status to the 3903 * FETD. (Thus the flag set.) 3904 * 3905 * XXX XXX 3906 * Note that this makes a blind copy of all fields in the ctl_io, except 3907 * for the pool reference. This includes any memory that has been 3908 * allocated! That memory will no longer be valid after done has been 3909 * called, so this would be VERY DANGEROUS for command that actually does 3910 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3911 * start and stop commands, which don't transfer any data, so this is not a 3912 * problem. If it is used for anything else, the caller would also need to 3913 * allocate data buffer space and this routine would need to be modified to 3914 * copy the data buffer(s) as well. 3915 */ 3916void 3917ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3918{ 3919 void *pool_ref; 3920 3921 if ((src == NULL) 3922 || (dest == NULL)) 3923 return; 3924 3925 /* 3926 * May need to preserve linked list pointers at some point too. 3927 */ 3928 pool_ref = dest->io_hdr.pool; 3929 3930 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3931 3932 dest->io_hdr.pool = pool_ref; 3933 /* 3934 * We need to know that this is an internal copy, and doesn't need 3935 * to get passed back to the FETD that allocated it. 3936 */ 3937 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3938} 3939 3940#ifdef NEEDTOPORT 3941static void 3942ctl_update_power_subpage(struct copan_power_subpage *page) 3943{ 3944 int num_luns, num_partitions, config_type; 3945 struct ctl_softc *softc; 3946 cs_BOOL_t aor_present, shelf_50pct_power; 3947 cs_raidset_personality_t rs_type; 3948 int max_active_luns; 3949 3950 softc = control_softc; 3951 3952 /* subtract out the processor LUN */ 3953 num_luns = softc->num_luns - 1; 3954 /* 3955 * Default to 7 LUNs active, which was the only number we allowed 3956 * in the past. 3957 */ 3958 max_active_luns = 7; 3959 3960 num_partitions = config_GetRsPartitionInfo(); 3961 config_type = config_GetConfigType(); 3962 shelf_50pct_power = config_GetShelfPowerMode(); 3963 aor_present = config_IsAorRsPresent(); 3964 3965 rs_type = ddb_GetRsRaidType(1); 3966 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3967 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3968 EPRINT(0, "Unsupported RS type %d!", rs_type); 3969 } 3970 3971 3972 page->total_luns = num_luns; 3973 3974 switch (config_type) { 3975 case 40: 3976 /* 3977 * In a 40 drive configuration, it doesn't matter what DC 3978 * cards we have, whether we have AOR enabled or not, 3979 * partitioning or not, or what type of RAIDset we have. 3980 * In that scenario, we can power up every LUN we present 3981 * to the user. 3982 */ 3983 max_active_luns = num_luns; 3984 3985 break; 3986 case 64: 3987 if (shelf_50pct_power == CS_FALSE) { 3988 /* 25% power */ 3989 if (aor_present == CS_TRUE) { 3990 if (rs_type == 3991 CS_RAIDSET_PERSONALITY_RAID5) { 3992 max_active_luns = 7; 3993 } else if (rs_type == 3994 CS_RAIDSET_PERSONALITY_RAID1){ 3995 max_active_luns = 14; 3996 } else { 3997 /* XXX KDM now what?? */ 3998 } 3999 } else { 4000 if (rs_type == 4001 CS_RAIDSET_PERSONALITY_RAID5) { 4002 max_active_luns = 8; 4003 } else if (rs_type == 4004 CS_RAIDSET_PERSONALITY_RAID1){ 4005 max_active_luns = 16; 4006 } else { 4007 /* XXX KDM now what?? */ 4008 } 4009 } 4010 } else { 4011 /* 50% power */ 4012 /* 4013 * With 50% power in a 64 drive configuration, we 4014 * can power all LUNs we present. 4015 */ 4016 max_active_luns = num_luns; 4017 } 4018 break; 4019 case 112: 4020 if (shelf_50pct_power == CS_FALSE) { 4021 /* 25% power */ 4022 if (aor_present == CS_TRUE) { 4023 if (rs_type == 4024 CS_RAIDSET_PERSONALITY_RAID5) { 4025 max_active_luns = 7; 4026 } else if (rs_type == 4027 CS_RAIDSET_PERSONALITY_RAID1){ 4028 max_active_luns = 14; 4029 } else { 4030 /* XXX KDM now what?? */ 4031 } 4032 } else { 4033 if (rs_type == 4034 CS_RAIDSET_PERSONALITY_RAID5) { 4035 max_active_luns = 8; 4036 } else if (rs_type == 4037 CS_RAIDSET_PERSONALITY_RAID1){ 4038 max_active_luns = 16; 4039 } else { 4040 /* XXX KDM now what?? */ 4041 } 4042 } 4043 } else { 4044 /* 50% power */ 4045 if (aor_present == CS_TRUE) { 4046 if (rs_type == 4047 CS_RAIDSET_PERSONALITY_RAID5) { 4048 max_active_luns = 14; 4049 } else if (rs_type == 4050 CS_RAIDSET_PERSONALITY_RAID1){ 4051 /* 4052 * We're assuming here that disk 4053 * caching is enabled, and so we're 4054 * able to power up half of each 4055 * LUN, and cache all writes. 4056 */ 4057 max_active_luns = num_luns; 4058 } else { 4059 /* XXX KDM now what?? */ 4060 } 4061 } else { 4062 if (rs_type == 4063 CS_RAIDSET_PERSONALITY_RAID5) { 4064 max_active_luns = 15; 4065 } else if (rs_type == 4066 CS_RAIDSET_PERSONALITY_RAID1){ 4067 max_active_luns = 30; 4068 } else { 4069 /* XXX KDM now what?? */ 4070 } 4071 } 4072 } 4073 break; 4074 default: 4075 /* 4076 * In this case, we have an unknown configuration, so we 4077 * just use the default from above. 4078 */ 4079 break; 4080 } 4081 4082 page->max_active_luns = max_active_luns; 4083#if 0 4084 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4085 page->total_luns, page->max_active_luns); 4086#endif 4087} 4088#endif /* NEEDTOPORT */ 4089 4090/* 4091 * This routine could be used in the future to load default and/or saved 4092 * mode page parameters for a particuar lun. 4093 */ 4094static int 4095ctl_init_page_index(struct ctl_lun *lun) 4096{ 4097 int i; 4098 struct ctl_page_index *page_index; 4099 struct ctl_softc *softc; 4100 4101 memcpy(&lun->mode_pages.index, page_index_template, 4102 sizeof(page_index_template)); 4103 4104 softc = lun->ctl_softc; 4105 4106 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4107 4108 page_index = &lun->mode_pages.index[i]; 4109 /* 4110 * If this is a disk-only mode page, there's no point in 4111 * setting it up. For some pages, we have to have some 4112 * basic information about the disk in order to calculate the 4113 * mode page data. 4114 */ 4115 if ((lun->be_lun->lun_type != T_DIRECT) 4116 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4117 continue; 4118 4119 switch (page_index->page_code & SMPH_PC_MASK) { 4120 case SMS_FORMAT_DEVICE_PAGE: { 4121 struct scsi_format_page *format_page; 4122 4123 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4124 panic("subpage is incorrect!"); 4125 4126 /* 4127 * Sectors per track are set above. Bytes per 4128 * sector need to be set here on a per-LUN basis. 4129 */ 4130 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4131 &format_page_default, 4132 sizeof(format_page_default)); 4133 memcpy(&lun->mode_pages.format_page[ 4134 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4135 sizeof(format_page_changeable)); 4136 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4137 &format_page_default, 4138 sizeof(format_page_default)); 4139 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4140 &format_page_default, 4141 sizeof(format_page_default)); 4142 4143 format_page = &lun->mode_pages.format_page[ 4144 CTL_PAGE_CURRENT]; 4145 scsi_ulto2b(lun->be_lun->blocksize, 4146 format_page->bytes_per_sector); 4147 4148 format_page = &lun->mode_pages.format_page[ 4149 CTL_PAGE_DEFAULT]; 4150 scsi_ulto2b(lun->be_lun->blocksize, 4151 format_page->bytes_per_sector); 4152 4153 format_page = &lun->mode_pages.format_page[ 4154 CTL_PAGE_SAVED]; 4155 scsi_ulto2b(lun->be_lun->blocksize, 4156 format_page->bytes_per_sector); 4157 4158 page_index->page_data = 4159 (uint8_t *)lun->mode_pages.format_page; 4160 break; 4161 } 4162 case SMS_RIGID_DISK_PAGE: { 4163 struct scsi_rigid_disk_page *rigid_disk_page; 4164 uint32_t sectors_per_cylinder; 4165 uint64_t cylinders; 4166#ifndef __XSCALE__ 4167 int shift; 4168#endif /* !__XSCALE__ */ 4169 4170 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4171 panic("invalid subpage value %d", 4172 page_index->subpage); 4173 4174 /* 4175 * Rotation rate and sectors per track are set 4176 * above. We calculate the cylinders here based on 4177 * capacity. Due to the number of heads and 4178 * sectors per track we're using, smaller arrays 4179 * may turn out to have 0 cylinders. Linux and 4180 * FreeBSD don't pay attention to these mode pages 4181 * to figure out capacity, but Solaris does. It 4182 * seems to deal with 0 cylinders just fine, and 4183 * works out a fake geometry based on the capacity. 4184 */ 4185 memcpy(&lun->mode_pages.rigid_disk_page[ 4186 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4187 sizeof(rigid_disk_page_default)); 4188 memcpy(&lun->mode_pages.rigid_disk_page[ 4189 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4190 sizeof(rigid_disk_page_changeable)); 4191 memcpy(&lun->mode_pages.rigid_disk_page[ 4192 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4193 sizeof(rigid_disk_page_default)); 4194 memcpy(&lun->mode_pages.rigid_disk_page[ 4195 CTL_PAGE_SAVED], &rigid_disk_page_default, 4196 sizeof(rigid_disk_page_default)); 4197 4198 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4199 CTL_DEFAULT_HEADS; 4200 4201 /* 4202 * The divide method here will be more accurate, 4203 * probably, but results in floating point being 4204 * used in the kernel on i386 (__udivdi3()). On the 4205 * XScale, though, __udivdi3() is implemented in 4206 * software. 4207 * 4208 * The shift method for cylinder calculation is 4209 * accurate if sectors_per_cylinder is a power of 4210 * 2. Otherwise it might be slightly off -- you 4211 * might have a bit of a truncation problem. 4212 */ 4213#ifdef __XSCALE__ 4214 cylinders = (lun->be_lun->maxlba + 1) / 4215 sectors_per_cylinder; 4216#else 4217 for (shift = 31; shift > 0; shift--) { 4218 if (sectors_per_cylinder & (1 << shift)) 4219 break; 4220 } 4221 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4222#endif 4223 4224 /* 4225 * We've basically got 3 bytes, or 24 bits for the 4226 * cylinder size in the mode page. If we're over, 4227 * just round down to 2^24. 4228 */ 4229 if (cylinders > 0xffffff) 4230 cylinders = 0xffffff; 4231 4232 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4233 CTL_PAGE_CURRENT]; 4234 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4235 4236 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4237 CTL_PAGE_DEFAULT]; 4238 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4239 4240 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4241 CTL_PAGE_SAVED]; 4242 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4243 4244 page_index->page_data = 4245 (uint8_t *)lun->mode_pages.rigid_disk_page; 4246 break; 4247 } 4248 case SMS_CACHING_PAGE: { 4249 4250 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4251 panic("invalid subpage value %d", 4252 page_index->subpage); 4253 /* 4254 * Defaults should be okay here, no calculations 4255 * needed. 4256 */ 4257 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4258 &caching_page_default, 4259 sizeof(caching_page_default)); 4260 memcpy(&lun->mode_pages.caching_page[ 4261 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4262 sizeof(caching_page_changeable)); 4263 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4264 &caching_page_default, 4265 sizeof(caching_page_default)); 4266 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4267 &caching_page_default, 4268 sizeof(caching_page_default)); 4269 page_index->page_data = 4270 (uint8_t *)lun->mode_pages.caching_page; 4271 break; 4272 } 4273 case SMS_CONTROL_MODE_PAGE: { 4274 4275 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4276 panic("invalid subpage value %d", 4277 page_index->subpage); 4278 4279 /* 4280 * Defaults should be okay here, no calculations 4281 * needed. 4282 */ 4283 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4284 &control_page_default, 4285 sizeof(control_page_default)); 4286 memcpy(&lun->mode_pages.control_page[ 4287 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4288 sizeof(control_page_changeable)); 4289 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4290 &control_page_default, 4291 sizeof(control_page_default)); 4292 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4293 &control_page_default, 4294 sizeof(control_page_default)); 4295 page_index->page_data = 4296 (uint8_t *)lun->mode_pages.control_page; 4297 break; 4298 4299 } 4300 case SMS_VENDOR_SPECIFIC_PAGE:{ 4301 switch (page_index->subpage) { 4302 case PWR_SUBPAGE_CODE: { 4303 struct copan_power_subpage *current_page, 4304 *saved_page; 4305 4306 memcpy(&lun->mode_pages.power_subpage[ 4307 CTL_PAGE_CURRENT], 4308 &power_page_default, 4309 sizeof(power_page_default)); 4310 memcpy(&lun->mode_pages.power_subpage[ 4311 CTL_PAGE_CHANGEABLE], 4312 &power_page_changeable, 4313 sizeof(power_page_changeable)); 4314 memcpy(&lun->mode_pages.power_subpage[ 4315 CTL_PAGE_DEFAULT], 4316 &power_page_default, 4317 sizeof(power_page_default)); 4318 memcpy(&lun->mode_pages.power_subpage[ 4319 CTL_PAGE_SAVED], 4320 &power_page_default, 4321 sizeof(power_page_default)); 4322 page_index->page_data = 4323 (uint8_t *)lun->mode_pages.power_subpage; 4324 4325 current_page = (struct copan_power_subpage *) 4326 (page_index->page_data + 4327 (page_index->page_len * 4328 CTL_PAGE_CURRENT)); 4329 saved_page = (struct copan_power_subpage *) 4330 (page_index->page_data + 4331 (page_index->page_len * 4332 CTL_PAGE_SAVED)); 4333 break; 4334 } 4335 case APS_SUBPAGE_CODE: { 4336 struct copan_aps_subpage *current_page, 4337 *saved_page; 4338 4339 // This gets set multiple times but 4340 // it should always be the same. It's 4341 // only done during init so who cares. 4342 index_to_aps_page = i; 4343 4344 memcpy(&lun->mode_pages.aps_subpage[ 4345 CTL_PAGE_CURRENT], 4346 &aps_page_default, 4347 sizeof(aps_page_default)); 4348 memcpy(&lun->mode_pages.aps_subpage[ 4349 CTL_PAGE_CHANGEABLE], 4350 &aps_page_changeable, 4351 sizeof(aps_page_changeable)); 4352 memcpy(&lun->mode_pages.aps_subpage[ 4353 CTL_PAGE_DEFAULT], 4354 &aps_page_default, 4355 sizeof(aps_page_default)); 4356 memcpy(&lun->mode_pages.aps_subpage[ 4357 CTL_PAGE_SAVED], 4358 &aps_page_default, 4359 sizeof(aps_page_default)); 4360 page_index->page_data = 4361 (uint8_t *)lun->mode_pages.aps_subpage; 4362 4363 current_page = (struct copan_aps_subpage *) 4364 (page_index->page_data + 4365 (page_index->page_len * 4366 CTL_PAGE_CURRENT)); 4367 saved_page = (struct copan_aps_subpage *) 4368 (page_index->page_data + 4369 (page_index->page_len * 4370 CTL_PAGE_SAVED)); 4371 break; 4372 } 4373 case DBGCNF_SUBPAGE_CODE: { 4374 struct copan_debugconf_subpage *current_page, 4375 *saved_page; 4376 4377 memcpy(&lun->mode_pages.debugconf_subpage[ 4378 CTL_PAGE_CURRENT], 4379 &debugconf_page_default, 4380 sizeof(debugconf_page_default)); 4381 memcpy(&lun->mode_pages.debugconf_subpage[ 4382 CTL_PAGE_CHANGEABLE], 4383 &debugconf_page_changeable, 4384 sizeof(debugconf_page_changeable)); 4385 memcpy(&lun->mode_pages.debugconf_subpage[ 4386 CTL_PAGE_DEFAULT], 4387 &debugconf_page_default, 4388 sizeof(debugconf_page_default)); 4389 memcpy(&lun->mode_pages.debugconf_subpage[ 4390 CTL_PAGE_SAVED], 4391 &debugconf_page_default, 4392 sizeof(debugconf_page_default)); 4393 page_index->page_data = 4394 (uint8_t *)lun->mode_pages.debugconf_subpage; 4395 4396 current_page = (struct copan_debugconf_subpage *) 4397 (page_index->page_data + 4398 (page_index->page_len * 4399 CTL_PAGE_CURRENT)); 4400 saved_page = (struct copan_debugconf_subpage *) 4401 (page_index->page_data + 4402 (page_index->page_len * 4403 CTL_PAGE_SAVED)); 4404 break; 4405 } 4406 default: 4407 panic("invalid subpage value %d", 4408 page_index->subpage); 4409 break; 4410 } 4411 break; 4412 } 4413 default: 4414 panic("invalid page value %d", 4415 page_index->page_code & SMPH_PC_MASK); 4416 break; 4417 } 4418 } 4419 4420 return (CTL_RETVAL_COMPLETE); 4421} 4422 4423/* 4424 * LUN allocation. 4425 * 4426 * Requirements: 4427 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4428 * wants us to allocate the LUN and he can block. 4429 * - ctl_softc is always set 4430 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4431 * 4432 * Returns 0 for success, non-zero (errno) for failure. 4433 */ 4434static int 4435ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4436 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4437{ 4438 struct ctl_lun *nlun, *lun; 4439 struct ctl_port *port; 4440 struct scsi_vpd_id_descriptor *desc; 4441 struct scsi_vpd_id_t10 *t10id; 4442 const char *eui, *naa, *scsiname, *vendor; 4443 int lun_number, i, lun_malloced; 4444 int devidlen, idlen1, idlen2 = 0, len; 4445 4446 if (be_lun == NULL) 4447 return (EINVAL); 4448 4449 /* 4450 * We currently only support Direct Access or Processor LUN types. 4451 */ 4452 switch (be_lun->lun_type) { 4453 case T_DIRECT: 4454 break; 4455 case T_PROCESSOR: 4456 break; 4457 case T_SEQUENTIAL: 4458 case T_CHANGER: 4459 default: 4460 be_lun->lun_config_status(be_lun->be_lun, 4461 CTL_LUN_CONFIG_FAILURE); 4462 break; 4463 } 4464 if (ctl_lun == NULL) { 4465 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4466 lun_malloced = 1; 4467 } else { 4468 lun_malloced = 0; 4469 lun = ctl_lun; 4470 } 4471 4472 memset(lun, 0, sizeof(*lun)); 4473 if (lun_malloced) 4474 lun->flags = CTL_LUN_MALLOCED; 4475 4476 /* Generate LUN ID. */ 4477 devidlen = max(CTL_DEVID_MIN_LEN, 4478 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4479 idlen1 = sizeof(*t10id) + devidlen; 4480 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4481 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4482 if (scsiname != NULL) { 4483 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4484 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4485 } 4486 eui = ctl_get_opt(&be_lun->options, "eui"); 4487 if (eui != NULL) { 4488 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4489 } 4490 naa = ctl_get_opt(&be_lun->options, "naa"); 4491 if (naa != NULL) { 4492 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4493 } 4494 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4495 M_CTL, M_WAITOK | M_ZERO); 4496 lun->lun_devid->len = len; 4497 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4498 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4499 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4500 desc->length = idlen1; 4501 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4502 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4503 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4504 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4505 } else { 4506 strncpy(t10id->vendor, vendor, 4507 min(sizeof(t10id->vendor), strlen(vendor))); 4508 } 4509 strncpy((char *)t10id->vendor_spec_id, 4510 (char *)be_lun->device_id, devidlen); 4511 if (scsiname != NULL) { 4512 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4513 desc->length); 4514 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4515 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4516 SVPD_ID_TYPE_SCSI_NAME; 4517 desc->length = idlen2; 4518 strlcpy(desc->identifier, scsiname, idlen2); 4519 } 4520 if (eui != NULL) { 4521 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4522 desc->length); 4523 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4524 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4525 SVPD_ID_TYPE_EUI64; 4526 desc->length = 8; 4527 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4528 } 4529 if (naa != NULL) { 4530 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4531 desc->length); 4532 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4533 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4534 SVPD_ID_TYPE_NAA; 4535 desc->length = 8; 4536 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4537 } 4538 4539 mtx_lock(&ctl_softc->ctl_lock); 4540 /* 4541 * See if the caller requested a particular LUN number. If so, see 4542 * if it is available. Otherwise, allocate the first available LUN. 4543 */ 4544 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4545 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4546 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4547 mtx_unlock(&ctl_softc->ctl_lock); 4548 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4549 printf("ctl: requested LUN ID %d is higher " 4550 "than CTL_MAX_LUNS - 1 (%d)\n", 4551 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4552 } else { 4553 /* 4554 * XXX KDM return an error, or just assign 4555 * another LUN ID in this case?? 4556 */ 4557 printf("ctl: requested LUN ID %d is already " 4558 "in use\n", be_lun->req_lun_id); 4559 } 4560 if (lun->flags & CTL_LUN_MALLOCED) 4561 free(lun, M_CTL); 4562 be_lun->lun_config_status(be_lun->be_lun, 4563 CTL_LUN_CONFIG_FAILURE); 4564 return (ENOSPC); 4565 } 4566 lun_number = be_lun->req_lun_id; 4567 } else { 4568 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4569 if (lun_number == -1) { 4570 mtx_unlock(&ctl_softc->ctl_lock); 4571 printf("ctl: can't allocate LUN on target %ju, out of " 4572 "LUNs\n", (uintmax_t)target_id.id); 4573 if (lun->flags & CTL_LUN_MALLOCED) 4574 free(lun, M_CTL); 4575 be_lun->lun_config_status(be_lun->be_lun, 4576 CTL_LUN_CONFIG_FAILURE); 4577 return (ENOSPC); 4578 } 4579 } 4580 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4581 4582 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4583 lun->target = target_id; 4584 lun->lun = lun_number; 4585 lun->be_lun = be_lun; 4586 /* 4587 * The processor LUN is always enabled. Disk LUNs come on line 4588 * disabled, and must be enabled by the backend. 4589 */ 4590 lun->flags |= CTL_LUN_DISABLED; 4591 lun->backend = be_lun->be; 4592 be_lun->ctl_lun = lun; 4593 be_lun->lun_id = lun_number; 4594 atomic_add_int(&be_lun->be->num_luns, 1); 4595 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4596 lun->flags |= CTL_LUN_STOPPED; 4597 4598 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4599 lun->flags |= CTL_LUN_INOPERABLE; 4600 4601 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4602 lun->flags |= CTL_LUN_PRIMARY_SC; 4603 4604 lun->ctl_softc = ctl_softc; 4605 TAILQ_INIT(&lun->ooa_queue); 4606 TAILQ_INIT(&lun->blocked_queue); 4607 STAILQ_INIT(&lun->error_list); 4608 ctl_tpc_lun_init(lun); 4609 4610 /* 4611 * Initialize the mode page index. 4612 */ 4613 ctl_init_page_index(lun); 4614 4615 /* 4616 * Set the poweron UA for all initiators on this LUN only. 4617 */ 4618 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4619 lun->pending_ua[i] = CTL_UA_POWERON; 4620 4621 /* 4622 * Now, before we insert this lun on the lun list, set the lun 4623 * inventory changed UA for all other luns. 4624 */ 4625 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4626 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4627 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4628 } 4629 } 4630 4631 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4632 4633 ctl_softc->ctl_luns[lun_number] = lun; 4634 4635 ctl_softc->num_luns++; 4636 4637 /* Setup statistics gathering */ 4638 lun->stats.device_type = be_lun->lun_type; 4639 lun->stats.lun_number = lun_number; 4640 if (lun->stats.device_type == T_DIRECT) 4641 lun->stats.blocksize = be_lun->blocksize; 4642 else 4643 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4644 for (i = 0;i < CTL_MAX_PORTS;i++) 4645 lun->stats.ports[i].targ_port = i; 4646 4647 mtx_unlock(&ctl_softc->ctl_lock); 4648 4649 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4650 4651 /* 4652 * Run through each registered FETD and bring it online if it isn't 4653 * already. Enable the target ID if it hasn't been enabled, and 4654 * enable this particular LUN. 4655 */ 4656 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4657 int retval; 4658 4659 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4660 if (retval != 0) { 4661 printf("ctl_alloc_lun: FETD %s port %d returned error " 4662 "%d for lun_enable on target %ju lun %d\n", 4663 port->port_name, port->targ_port, retval, 4664 (uintmax_t)target_id.id, lun_number); 4665 } else 4666 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4667 } 4668 return (0); 4669} 4670 4671/* 4672 * Delete a LUN. 4673 * Assumptions: 4674 * - LUN has already been marked invalid and any pending I/O has been taken 4675 * care of. 4676 */ 4677static int 4678ctl_free_lun(struct ctl_lun *lun) 4679{ 4680 struct ctl_softc *softc; 4681#if 0 4682 struct ctl_port *port; 4683#endif 4684 struct ctl_lun *nlun; 4685 int i; 4686 4687 softc = lun->ctl_softc; 4688 4689 mtx_assert(&softc->ctl_lock, MA_OWNED); 4690 4691 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4692 4693 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4694 4695 softc->ctl_luns[lun->lun] = NULL; 4696 4697 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4698 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4699 4700 softc->num_luns--; 4701 4702 /* 4703 * XXX KDM this scheme only works for a single target/multiple LUN 4704 * setup. It needs to be revamped for a multiple target scheme. 4705 * 4706 * XXX KDM this results in port->lun_disable() getting called twice, 4707 * once when ctl_disable_lun() is called, and a second time here. 4708 * We really need to re-think the LUN disable semantics. There 4709 * should probably be several steps/levels to LUN removal: 4710 * - disable 4711 * - invalidate 4712 * - free 4713 * 4714 * Right now we only have a disable method when communicating to 4715 * the front end ports, at least for individual LUNs. 4716 */ 4717#if 0 4718 STAILQ_FOREACH(port, &softc->port_list, links) { 4719 int retval; 4720 4721 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4722 lun->lun); 4723 if (retval != 0) { 4724 printf("ctl_free_lun: FETD %s port %d returned error " 4725 "%d for lun_disable on target %ju lun %jd\n", 4726 port->port_name, port->targ_port, retval, 4727 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4728 } 4729 4730 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4731 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4732 4733 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4734 if (retval != 0) { 4735 printf("ctl_free_lun: FETD %s port %d " 4736 "returned error %d for targ_disable on " 4737 "target %ju\n", port->port_name, 4738 port->targ_port, retval, 4739 (uintmax_t)lun->target.id); 4740 } else 4741 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4742 4743 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4744 continue; 4745 4746#if 0 4747 port->port_offline(port->onoff_arg); 4748 port->status &= ~CTL_PORT_STATUS_ONLINE; 4749#endif 4750 } 4751 } 4752#endif 4753 4754 /* 4755 * Tell the backend to free resources, if this LUN has a backend. 4756 */ 4757 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4758 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4759 4760 ctl_tpc_lun_shutdown(lun); 4761 mtx_destroy(&lun->lun_lock); 4762 free(lun->lun_devid, M_CTL); 4763 if (lun->flags & CTL_LUN_MALLOCED) 4764 free(lun, M_CTL); 4765 4766 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4767 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4768 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4769 } 4770 } 4771 4772 return (0); 4773} 4774 4775static void 4776ctl_create_lun(struct ctl_be_lun *be_lun) 4777{ 4778 struct ctl_softc *ctl_softc; 4779 4780 ctl_softc = control_softc; 4781 4782 /* 4783 * ctl_alloc_lun() should handle all potential failure cases. 4784 */ 4785 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4786} 4787 4788int 4789ctl_add_lun(struct ctl_be_lun *be_lun) 4790{ 4791 struct ctl_softc *ctl_softc = control_softc; 4792 4793 mtx_lock(&ctl_softc->ctl_lock); 4794 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4795 mtx_unlock(&ctl_softc->ctl_lock); 4796 wakeup(&ctl_softc->pending_lun_queue); 4797 4798 return (0); 4799} 4800 4801int 4802ctl_enable_lun(struct ctl_be_lun *be_lun) 4803{ 4804 struct ctl_softc *ctl_softc; 4805 struct ctl_port *port, *nport; 4806 struct ctl_lun *lun; 4807 int retval; 4808 4809 ctl_softc = control_softc; 4810 4811 lun = (struct ctl_lun *)be_lun->ctl_lun; 4812 4813 mtx_lock(&ctl_softc->ctl_lock); 4814 mtx_lock(&lun->lun_lock); 4815 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4816 /* 4817 * eh? Why did we get called if the LUN is already 4818 * enabled? 4819 */ 4820 mtx_unlock(&lun->lun_lock); 4821 mtx_unlock(&ctl_softc->ctl_lock); 4822 return (0); 4823 } 4824 lun->flags &= ~CTL_LUN_DISABLED; 4825 mtx_unlock(&lun->lun_lock); 4826 4827 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4828 nport = STAILQ_NEXT(port, links); 4829 4830 /* 4831 * Drop the lock while we call the FETD's enable routine. 4832 * This can lead to a callback into CTL (at least in the 4833 * case of the internal initiator frontend. 4834 */ 4835 mtx_unlock(&ctl_softc->ctl_lock); 4836 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4837 mtx_lock(&ctl_softc->ctl_lock); 4838 if (retval != 0) { 4839 printf("%s: FETD %s port %d returned error " 4840 "%d for lun_enable on target %ju lun %jd\n", 4841 __func__, port->port_name, port->targ_port, retval, 4842 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4843 } 4844#if 0 4845 else { 4846 /* NOTE: TODO: why does lun enable affect port status? */ 4847 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4848 } 4849#endif 4850 } 4851 4852 mtx_unlock(&ctl_softc->ctl_lock); 4853 4854 return (0); 4855} 4856 4857int 4858ctl_disable_lun(struct ctl_be_lun *be_lun) 4859{ 4860 struct ctl_softc *ctl_softc; 4861 struct ctl_port *port; 4862 struct ctl_lun *lun; 4863 int retval; 4864 4865 ctl_softc = control_softc; 4866 4867 lun = (struct ctl_lun *)be_lun->ctl_lun; 4868 4869 mtx_lock(&ctl_softc->ctl_lock); 4870 mtx_lock(&lun->lun_lock); 4871 if (lun->flags & CTL_LUN_DISABLED) { 4872 mtx_unlock(&lun->lun_lock); 4873 mtx_unlock(&ctl_softc->ctl_lock); 4874 return (0); 4875 } 4876 lun->flags |= CTL_LUN_DISABLED; 4877 mtx_unlock(&lun->lun_lock); 4878 4879 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4880 mtx_unlock(&ctl_softc->ctl_lock); 4881 /* 4882 * Drop the lock before we call the frontend's disable 4883 * routine, to avoid lock order reversals. 4884 * 4885 * XXX KDM what happens if the frontend list changes while 4886 * we're traversing it? It's unlikely, but should be handled. 4887 */ 4888 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4889 lun->lun); 4890 mtx_lock(&ctl_softc->ctl_lock); 4891 if (retval != 0) { 4892 printf("ctl_alloc_lun: FETD %s port %d returned error " 4893 "%d for lun_disable on target %ju lun %jd\n", 4894 port->port_name, port->targ_port, retval, 4895 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4896 } 4897 } 4898 4899 mtx_unlock(&ctl_softc->ctl_lock); 4900 4901 return (0); 4902} 4903 4904int 4905ctl_start_lun(struct ctl_be_lun *be_lun) 4906{ 4907 struct ctl_softc *ctl_softc; 4908 struct ctl_lun *lun; 4909 4910 ctl_softc = control_softc; 4911 4912 lun = (struct ctl_lun *)be_lun->ctl_lun; 4913 4914 mtx_lock(&lun->lun_lock); 4915 lun->flags &= ~CTL_LUN_STOPPED; 4916 mtx_unlock(&lun->lun_lock); 4917 4918 return (0); 4919} 4920 4921int 4922ctl_stop_lun(struct ctl_be_lun *be_lun) 4923{ 4924 struct ctl_softc *ctl_softc; 4925 struct ctl_lun *lun; 4926 4927 ctl_softc = control_softc; 4928 4929 lun = (struct ctl_lun *)be_lun->ctl_lun; 4930 4931 mtx_lock(&lun->lun_lock); 4932 lun->flags |= CTL_LUN_STOPPED; 4933 mtx_unlock(&lun->lun_lock); 4934 4935 return (0); 4936} 4937 4938int 4939ctl_lun_offline(struct ctl_be_lun *be_lun) 4940{ 4941 struct ctl_softc *ctl_softc; 4942 struct ctl_lun *lun; 4943 4944 ctl_softc = control_softc; 4945 4946 lun = (struct ctl_lun *)be_lun->ctl_lun; 4947 4948 mtx_lock(&lun->lun_lock); 4949 lun->flags |= CTL_LUN_OFFLINE; 4950 mtx_unlock(&lun->lun_lock); 4951 4952 return (0); 4953} 4954 4955int 4956ctl_lun_online(struct ctl_be_lun *be_lun) 4957{ 4958 struct ctl_softc *ctl_softc; 4959 struct ctl_lun *lun; 4960 4961 ctl_softc = control_softc; 4962 4963 lun = (struct ctl_lun *)be_lun->ctl_lun; 4964 4965 mtx_lock(&lun->lun_lock); 4966 lun->flags &= ~CTL_LUN_OFFLINE; 4967 mtx_unlock(&lun->lun_lock); 4968 4969 return (0); 4970} 4971 4972int 4973ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4974{ 4975 struct ctl_softc *ctl_softc; 4976 struct ctl_lun *lun; 4977 4978 ctl_softc = control_softc; 4979 4980 lun = (struct ctl_lun *)be_lun->ctl_lun; 4981 4982 mtx_lock(&lun->lun_lock); 4983 4984 /* 4985 * The LUN needs to be disabled before it can be marked invalid. 4986 */ 4987 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4988 mtx_unlock(&lun->lun_lock); 4989 return (-1); 4990 } 4991 /* 4992 * Mark the LUN invalid. 4993 */ 4994 lun->flags |= CTL_LUN_INVALID; 4995 4996 /* 4997 * If there is nothing in the OOA queue, go ahead and free the LUN. 4998 * If we have something in the OOA queue, we'll free it when the 4999 * last I/O completes. 5000 */ 5001 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5002 mtx_unlock(&lun->lun_lock); 5003 mtx_lock(&ctl_softc->ctl_lock); 5004 ctl_free_lun(lun); 5005 mtx_unlock(&ctl_softc->ctl_lock); 5006 } else 5007 mtx_unlock(&lun->lun_lock); 5008 5009 return (0); 5010} 5011 5012int 5013ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5014{ 5015 struct ctl_softc *ctl_softc; 5016 struct ctl_lun *lun; 5017 5018 ctl_softc = control_softc; 5019 lun = (struct ctl_lun *)be_lun->ctl_lun; 5020 5021 mtx_lock(&lun->lun_lock); 5022 lun->flags |= CTL_LUN_INOPERABLE; 5023 mtx_unlock(&lun->lun_lock); 5024 5025 return (0); 5026} 5027 5028int 5029ctl_lun_operable(struct ctl_be_lun *be_lun) 5030{ 5031 struct ctl_softc *ctl_softc; 5032 struct ctl_lun *lun; 5033 5034 ctl_softc = control_softc; 5035 lun = (struct ctl_lun *)be_lun->ctl_lun; 5036 5037 mtx_lock(&lun->lun_lock); 5038 lun->flags &= ~CTL_LUN_INOPERABLE; 5039 mtx_unlock(&lun->lun_lock); 5040 5041 return (0); 5042} 5043 5044int 5045ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5046 int lock) 5047{ 5048 struct ctl_softc *softc; 5049 struct ctl_lun *lun; 5050 struct copan_aps_subpage *current_sp; 5051 struct ctl_page_index *page_index; 5052 int i; 5053 5054 softc = control_softc; 5055 5056 mtx_lock(&softc->ctl_lock); 5057 5058 lun = (struct ctl_lun *)be_lun->ctl_lun; 5059 mtx_lock(&lun->lun_lock); 5060 5061 page_index = NULL; 5062 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5063 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5064 APS_PAGE_CODE) 5065 continue; 5066 5067 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5068 continue; 5069 page_index = &lun->mode_pages.index[i]; 5070 } 5071 5072 if (page_index == NULL) { 5073 mtx_unlock(&lun->lun_lock); 5074 mtx_unlock(&softc->ctl_lock); 5075 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5076 (uintmax_t)lun->lun); 5077 return (1); 5078 } 5079#if 0 5080 if ((softc->aps_locked_lun != 0) 5081 && (softc->aps_locked_lun != lun->lun)) { 5082 printf("%s: attempt to lock LUN %llu when %llu is already " 5083 "locked\n"); 5084 mtx_unlock(&lun->lun_lock); 5085 mtx_unlock(&softc->ctl_lock); 5086 return (1); 5087 } 5088#endif 5089 5090 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5091 (page_index->page_len * CTL_PAGE_CURRENT)); 5092 5093 if (lock != 0) { 5094 current_sp->lock_active = APS_LOCK_ACTIVE; 5095 softc->aps_locked_lun = lun->lun; 5096 } else { 5097 current_sp->lock_active = 0; 5098 softc->aps_locked_lun = 0; 5099 } 5100 5101 5102 /* 5103 * If we're in HA mode, try to send the lock message to the other 5104 * side. 5105 */ 5106 if (ctl_is_single == 0) { 5107 int isc_retval; 5108 union ctl_ha_msg lock_msg; 5109 5110 lock_msg.hdr.nexus = *nexus; 5111 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5112 if (lock != 0) 5113 lock_msg.aps.lock_flag = 1; 5114 else 5115 lock_msg.aps.lock_flag = 0; 5116 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5117 sizeof(lock_msg), 0); 5118 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5119 printf("%s: APS (lock=%d) error returned from " 5120 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5121 mtx_unlock(&lun->lun_lock); 5122 mtx_unlock(&softc->ctl_lock); 5123 return (1); 5124 } 5125 } 5126 5127 mtx_unlock(&lun->lun_lock); 5128 mtx_unlock(&softc->ctl_lock); 5129 5130 return (0); 5131} 5132 5133void 5134ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5135{ 5136 struct ctl_lun *lun; 5137 struct ctl_softc *softc; 5138 int i; 5139 5140 softc = control_softc; 5141 5142 lun = (struct ctl_lun *)be_lun->ctl_lun; 5143 5144 mtx_lock(&lun->lun_lock); 5145 5146 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5147 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5148 5149 mtx_unlock(&lun->lun_lock); 5150} 5151 5152/* 5153 * Backend "memory move is complete" callback for requests that never 5154 * make it down to say RAIDCore's configuration code. 5155 */ 5156int 5157ctl_config_move_done(union ctl_io *io) 5158{ 5159 int retval; 5160 5161 retval = CTL_RETVAL_COMPLETE; 5162 5163 5164 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5165 /* 5166 * XXX KDM this shouldn't happen, but what if it does? 5167 */ 5168 if (io->io_hdr.io_type != CTL_IO_SCSI) 5169 panic("I/O type isn't CTL_IO_SCSI!"); 5170 5171 if ((io->io_hdr.port_status == 0) 5172 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5173 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5174 io->io_hdr.status = CTL_SUCCESS; 5175 else if ((io->io_hdr.port_status != 0) 5176 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5177 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5178 /* 5179 * For hardware error sense keys, the sense key 5180 * specific value is defined to be a retry count, 5181 * but we use it to pass back an internal FETD 5182 * error code. XXX KDM Hopefully the FETD is only 5183 * using 16 bits for an error code, since that's 5184 * all the space we have in the sks field. 5185 */ 5186 ctl_set_internal_failure(&io->scsiio, 5187 /*sks_valid*/ 1, 5188 /*retry_count*/ 5189 io->io_hdr.port_status); 5190 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5191 free(io->scsiio.kern_data_ptr, M_CTL); 5192 ctl_done(io); 5193 goto bailout; 5194 } 5195 5196 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5197 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5198 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5199 /* 5200 * XXX KDM just assuming a single pointer here, and not a 5201 * S/G list. If we start using S/G lists for config data, 5202 * we'll need to know how to clean them up here as well. 5203 */ 5204 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5205 free(io->scsiio.kern_data_ptr, M_CTL); 5206 /* Hopefully the user has already set the status... */ 5207 ctl_done(io); 5208 } else { 5209 /* 5210 * XXX KDM now we need to continue data movement. Some 5211 * options: 5212 * - call ctl_scsiio() again? We don't do this for data 5213 * writes, because for those at least we know ahead of 5214 * time where the write will go and how long it is. For 5215 * config writes, though, that information is largely 5216 * contained within the write itself, thus we need to 5217 * parse out the data again. 5218 * 5219 * - Call some other function once the data is in? 5220 */ 5221 5222 /* 5223 * XXX KDM call ctl_scsiio() again for now, and check flag 5224 * bits to see whether we're allocated or not. 5225 */ 5226 retval = ctl_scsiio(&io->scsiio); 5227 } 5228bailout: 5229 return (retval); 5230} 5231 5232/* 5233 * This gets called by a backend driver when it is done with a 5234 * data_submit method. 5235 */ 5236void 5237ctl_data_submit_done(union ctl_io *io) 5238{ 5239 /* 5240 * If the IO_CONT flag is set, we need to call the supplied 5241 * function to continue processing the I/O, instead of completing 5242 * the I/O just yet. 5243 * 5244 * If there is an error, though, we don't want to keep processing. 5245 * Instead, just send status back to the initiator. 5246 */ 5247 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 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_STATUS_MASK) == CTL_SUCCESS)) { 5251 io->scsiio.io_cont(io); 5252 return; 5253 } 5254 ctl_done(io); 5255} 5256 5257/* 5258 * This gets called by a backend driver when it is done with a 5259 * configuration write. 5260 */ 5261void 5262ctl_config_write_done(union ctl_io *io) 5263{ 5264 /* 5265 * If the IO_CONT flag is set, we need to call the supplied 5266 * function to continue processing the I/O, instead of completing 5267 * the I/O just yet. 5268 * 5269 * If there is an error, though, we don't want to keep processing. 5270 * Instead, just send status back to the initiator. 5271 */ 5272 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5273 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5274 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5275 io->scsiio.io_cont(io); 5276 return; 5277 } 5278 /* 5279 * Since a configuration write can be done for commands that actually 5280 * have data allocated, like write buffer, and commands that have 5281 * no data, like start/stop unit, we need to check here. 5282 */ 5283 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5284 free(io->scsiio.kern_data_ptr, M_CTL); 5285 ctl_done(io); 5286} 5287 5288/* 5289 * SCSI release command. 5290 */ 5291int 5292ctl_scsi_release(struct ctl_scsiio *ctsio) 5293{ 5294 int length, longid, thirdparty_id, resv_id; 5295 struct ctl_softc *ctl_softc; 5296 struct ctl_lun *lun; 5297 5298 length = 0; 5299 resv_id = 0; 5300 5301 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5302 5303 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5304 ctl_softc = control_softc; 5305 5306 switch (ctsio->cdb[0]) { 5307 case RELEASE_10: { 5308 struct scsi_release_10 *cdb; 5309 5310 cdb = (struct scsi_release_10 *)ctsio->cdb; 5311 5312 if (cdb->byte2 & SR10_LONGID) 5313 longid = 1; 5314 else 5315 thirdparty_id = cdb->thirdparty_id; 5316 5317 resv_id = cdb->resv_id; 5318 length = scsi_2btoul(cdb->length); 5319 break; 5320 } 5321 } 5322 5323 5324 /* 5325 * XXX KDM right now, we only support LUN reservation. We don't 5326 * support 3rd party reservations, or extent reservations, which 5327 * might actually need the parameter list. If we've gotten this 5328 * far, we've got a LUN reservation. Anything else got kicked out 5329 * above. So, according to SPC, ignore the length. 5330 */ 5331 length = 0; 5332 5333 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5334 && (length > 0)) { 5335 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5336 ctsio->kern_data_len = length; 5337 ctsio->kern_total_len = length; 5338 ctsio->kern_data_resid = 0; 5339 ctsio->kern_rel_offset = 0; 5340 ctsio->kern_sg_entries = 0; 5341 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5342 ctsio->be_move_done = ctl_config_move_done; 5343 ctl_datamove((union ctl_io *)ctsio); 5344 5345 return (CTL_RETVAL_COMPLETE); 5346 } 5347 5348 if (length > 0) 5349 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5350 5351 mtx_lock(&lun->lun_lock); 5352 5353 /* 5354 * According to SPC, it is not an error for an intiator to attempt 5355 * to release a reservation on a LUN that isn't reserved, or that 5356 * is reserved by another initiator. The reservation can only be 5357 * released, though, by the initiator who made it or by one of 5358 * several reset type events. 5359 */ 5360 if (lun->flags & CTL_LUN_RESERVED) { 5361 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5362 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5363 && (ctsio->io_hdr.nexus.targ_target.id == 5364 lun->rsv_nexus.targ_target.id)) { 5365 lun->flags &= ~CTL_LUN_RESERVED; 5366 } 5367 } 5368 5369 mtx_unlock(&lun->lun_lock); 5370 5371 ctsio->scsi_status = SCSI_STATUS_OK; 5372 ctsio->io_hdr.status = CTL_SUCCESS; 5373 5374 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5375 free(ctsio->kern_data_ptr, M_CTL); 5376 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5377 } 5378 5379 ctl_done((union ctl_io *)ctsio); 5380 return (CTL_RETVAL_COMPLETE); 5381} 5382 5383int 5384ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5385{ 5386 int extent, thirdparty, longid; 5387 int resv_id, length; 5388 uint64_t thirdparty_id; 5389 struct ctl_softc *ctl_softc; 5390 struct ctl_lun *lun; 5391 5392 extent = 0; 5393 thirdparty = 0; 5394 longid = 0; 5395 resv_id = 0; 5396 length = 0; 5397 thirdparty_id = 0; 5398 5399 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5400 5401 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5402 ctl_softc = control_softc; 5403 5404 switch (ctsio->cdb[0]) { 5405 case RESERVE_10: { 5406 struct scsi_reserve_10 *cdb; 5407 5408 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5409 5410 if (cdb->byte2 & SR10_LONGID) 5411 longid = 1; 5412 else 5413 thirdparty_id = cdb->thirdparty_id; 5414 5415 resv_id = cdb->resv_id; 5416 length = scsi_2btoul(cdb->length); 5417 break; 5418 } 5419 } 5420 5421 /* 5422 * XXX KDM right now, we only support LUN reservation. We don't 5423 * support 3rd party reservations, or extent reservations, which 5424 * might actually need the parameter list. If we've gotten this 5425 * far, we've got a LUN reservation. Anything else got kicked out 5426 * above. So, according to SPC, ignore the length. 5427 */ 5428 length = 0; 5429 5430 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5431 && (length > 0)) { 5432 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5433 ctsio->kern_data_len = length; 5434 ctsio->kern_total_len = length; 5435 ctsio->kern_data_resid = 0; 5436 ctsio->kern_rel_offset = 0; 5437 ctsio->kern_sg_entries = 0; 5438 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5439 ctsio->be_move_done = ctl_config_move_done; 5440 ctl_datamove((union ctl_io *)ctsio); 5441 5442 return (CTL_RETVAL_COMPLETE); 5443 } 5444 5445 if (length > 0) 5446 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5447 5448 mtx_lock(&lun->lun_lock); 5449 if (lun->flags & CTL_LUN_RESERVED) { 5450 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5451 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5452 || (ctsio->io_hdr.nexus.targ_target.id != 5453 lun->rsv_nexus.targ_target.id)) { 5454 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5455 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5456 goto bailout; 5457 } 5458 } 5459 5460 lun->flags |= CTL_LUN_RESERVED; 5461 lun->rsv_nexus = ctsio->io_hdr.nexus; 5462 5463 ctsio->scsi_status = SCSI_STATUS_OK; 5464 ctsio->io_hdr.status = CTL_SUCCESS; 5465 5466bailout: 5467 mtx_unlock(&lun->lun_lock); 5468 5469 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5470 free(ctsio->kern_data_ptr, M_CTL); 5471 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5472 } 5473 5474 ctl_done((union ctl_io *)ctsio); 5475 return (CTL_RETVAL_COMPLETE); 5476} 5477 5478int 5479ctl_start_stop(struct ctl_scsiio *ctsio) 5480{ 5481 struct scsi_start_stop_unit *cdb; 5482 struct ctl_lun *lun; 5483 struct ctl_softc *ctl_softc; 5484 int retval; 5485 5486 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5487 5488 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5489 ctl_softc = control_softc; 5490 retval = 0; 5491 5492 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5493 5494 /* 5495 * XXX KDM 5496 * We don't support the immediate bit on a stop unit. In order to 5497 * do that, we would need to code up a way to know that a stop is 5498 * pending, and hold off any new commands until it completes, one 5499 * way or another. Then we could accept or reject those commands 5500 * depending on its status. We would almost need to do the reverse 5501 * of what we do below for an immediate start -- return the copy of 5502 * the ctl_io to the FETD with status to send to the host (and to 5503 * free the copy!) and then free the original I/O once the stop 5504 * actually completes. That way, the OOA queue mechanism can work 5505 * to block commands that shouldn't proceed. Another alternative 5506 * would be to put the copy in the queue in place of the original, 5507 * and return the original back to the caller. That could be 5508 * slightly safer.. 5509 */ 5510 if ((cdb->byte2 & SSS_IMMED) 5511 && ((cdb->how & SSS_START) == 0)) { 5512 ctl_set_invalid_field(ctsio, 5513 /*sks_valid*/ 1, 5514 /*command*/ 1, 5515 /*field*/ 1, 5516 /*bit_valid*/ 1, 5517 /*bit*/ 0); 5518 ctl_done((union ctl_io *)ctsio); 5519 return (CTL_RETVAL_COMPLETE); 5520 } 5521 5522 if ((lun->flags & CTL_LUN_PR_RESERVED) 5523 && ((cdb->how & SSS_START)==0)) { 5524 uint32_t residx; 5525 5526 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5527 if (!lun->per_res[residx].registered 5528 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5529 5530 ctl_set_reservation_conflict(ctsio); 5531 ctl_done((union ctl_io *)ctsio); 5532 return (CTL_RETVAL_COMPLETE); 5533 } 5534 } 5535 5536 /* 5537 * If there is no backend on this device, we can't start or stop 5538 * it. In theory we shouldn't get any start/stop commands in the 5539 * first place at this level if the LUN doesn't have a backend. 5540 * That should get stopped by the command decode code. 5541 */ 5542 if (lun->backend == NULL) { 5543 ctl_set_invalid_opcode(ctsio); 5544 ctl_done((union ctl_io *)ctsio); 5545 return (CTL_RETVAL_COMPLETE); 5546 } 5547 5548 /* 5549 * XXX KDM Copan-specific offline behavior. 5550 * Figure out a reasonable way to port this? 5551 */ 5552#ifdef NEEDTOPORT 5553 mtx_lock(&lun->lun_lock); 5554 5555 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5556 && (lun->flags & CTL_LUN_OFFLINE)) { 5557 /* 5558 * If the LUN is offline, and the on/offline bit isn't set, 5559 * reject the start or stop. Otherwise, let it through. 5560 */ 5561 mtx_unlock(&lun->lun_lock); 5562 ctl_set_lun_not_ready(ctsio); 5563 ctl_done((union ctl_io *)ctsio); 5564 } else { 5565 mtx_unlock(&lun->lun_lock); 5566#endif /* NEEDTOPORT */ 5567 /* 5568 * This could be a start or a stop when we're online, 5569 * or a stop/offline or start/online. A start or stop when 5570 * we're offline is covered in the case above. 5571 */ 5572 /* 5573 * In the non-immediate case, we send the request to 5574 * the backend and return status to the user when 5575 * it is done. 5576 * 5577 * In the immediate case, we allocate a new ctl_io 5578 * to hold a copy of the request, and send that to 5579 * the backend. We then set good status on the 5580 * user's request and return it immediately. 5581 */ 5582 if (cdb->byte2 & SSS_IMMED) { 5583 union ctl_io *new_io; 5584 5585 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5586 if (new_io == NULL) { 5587 ctl_set_busy(ctsio); 5588 ctl_done((union ctl_io *)ctsio); 5589 } else { 5590 ctl_copy_io((union ctl_io *)ctsio, 5591 new_io); 5592 retval = lun->backend->config_write(new_io); 5593 ctl_set_success(ctsio); 5594 ctl_done((union ctl_io *)ctsio); 5595 } 5596 } else { 5597 retval = lun->backend->config_write( 5598 (union ctl_io *)ctsio); 5599 } 5600#ifdef NEEDTOPORT 5601 } 5602#endif 5603 return (retval); 5604} 5605 5606/* 5607 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5608 * we don't really do anything with the LBA and length fields if the user 5609 * passes them in. Instead we'll just flush out the cache for the entire 5610 * LUN. 5611 */ 5612int 5613ctl_sync_cache(struct ctl_scsiio *ctsio) 5614{ 5615 struct ctl_lun *lun; 5616 struct ctl_softc *ctl_softc; 5617 uint64_t starting_lba; 5618 uint32_t block_count; 5619 int retval; 5620 5621 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5622 5623 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5624 ctl_softc = control_softc; 5625 retval = 0; 5626 5627 switch (ctsio->cdb[0]) { 5628 case SYNCHRONIZE_CACHE: { 5629 struct scsi_sync_cache *cdb; 5630 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5631 5632 starting_lba = scsi_4btoul(cdb->begin_lba); 5633 block_count = scsi_2btoul(cdb->lb_count); 5634 break; 5635 } 5636 case SYNCHRONIZE_CACHE_16: { 5637 struct scsi_sync_cache_16 *cdb; 5638 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5639 5640 starting_lba = scsi_8btou64(cdb->begin_lba); 5641 block_count = scsi_4btoul(cdb->lb_count); 5642 break; 5643 } 5644 default: 5645 ctl_set_invalid_opcode(ctsio); 5646 ctl_done((union ctl_io *)ctsio); 5647 goto bailout; 5648 break; /* NOTREACHED */ 5649 } 5650 5651 /* 5652 * We check the LBA and length, but don't do anything with them. 5653 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5654 * get flushed. This check will just help satisfy anyone who wants 5655 * to see an error for an out of range LBA. 5656 */ 5657 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5658 ctl_set_lba_out_of_range(ctsio); 5659 ctl_done((union ctl_io *)ctsio); 5660 goto bailout; 5661 } 5662 5663 /* 5664 * If this LUN has no backend, we can't flush the cache anyway. 5665 */ 5666 if (lun->backend == NULL) { 5667 ctl_set_invalid_opcode(ctsio); 5668 ctl_done((union ctl_io *)ctsio); 5669 goto bailout; 5670 } 5671 5672 /* 5673 * Check to see whether we're configured to send the SYNCHRONIZE 5674 * CACHE command directly to the back end. 5675 */ 5676 mtx_lock(&lun->lun_lock); 5677 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5678 && (++(lun->sync_count) >= lun->sync_interval)) { 5679 lun->sync_count = 0; 5680 mtx_unlock(&lun->lun_lock); 5681 retval = lun->backend->config_write((union ctl_io *)ctsio); 5682 } else { 5683 mtx_unlock(&lun->lun_lock); 5684 ctl_set_success(ctsio); 5685 ctl_done((union ctl_io *)ctsio); 5686 } 5687 5688bailout: 5689 5690 return (retval); 5691} 5692 5693int 5694ctl_format(struct ctl_scsiio *ctsio) 5695{ 5696 struct scsi_format *cdb; 5697 struct ctl_lun *lun; 5698 struct ctl_softc *ctl_softc; 5699 int length, defect_list_len; 5700 5701 CTL_DEBUG_PRINT(("ctl_format\n")); 5702 5703 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5704 ctl_softc = control_softc; 5705 5706 cdb = (struct scsi_format *)ctsio->cdb; 5707 5708 length = 0; 5709 if (cdb->byte2 & SF_FMTDATA) { 5710 if (cdb->byte2 & SF_LONGLIST) 5711 length = sizeof(struct scsi_format_header_long); 5712 else 5713 length = sizeof(struct scsi_format_header_short); 5714 } 5715 5716 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5717 && (length > 0)) { 5718 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5719 ctsio->kern_data_len = length; 5720 ctsio->kern_total_len = length; 5721 ctsio->kern_data_resid = 0; 5722 ctsio->kern_rel_offset = 0; 5723 ctsio->kern_sg_entries = 0; 5724 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5725 ctsio->be_move_done = ctl_config_move_done; 5726 ctl_datamove((union ctl_io *)ctsio); 5727 5728 return (CTL_RETVAL_COMPLETE); 5729 } 5730 5731 defect_list_len = 0; 5732 5733 if (cdb->byte2 & SF_FMTDATA) { 5734 if (cdb->byte2 & SF_LONGLIST) { 5735 struct scsi_format_header_long *header; 5736 5737 header = (struct scsi_format_header_long *) 5738 ctsio->kern_data_ptr; 5739 5740 defect_list_len = scsi_4btoul(header->defect_list_len); 5741 if (defect_list_len != 0) { 5742 ctl_set_invalid_field(ctsio, 5743 /*sks_valid*/ 1, 5744 /*command*/ 0, 5745 /*field*/ 2, 5746 /*bit_valid*/ 0, 5747 /*bit*/ 0); 5748 goto bailout; 5749 } 5750 } else { 5751 struct scsi_format_header_short *header; 5752 5753 header = (struct scsi_format_header_short *) 5754 ctsio->kern_data_ptr; 5755 5756 defect_list_len = scsi_2btoul(header->defect_list_len); 5757 if (defect_list_len != 0) { 5758 ctl_set_invalid_field(ctsio, 5759 /*sks_valid*/ 1, 5760 /*command*/ 0, 5761 /*field*/ 2, 5762 /*bit_valid*/ 0, 5763 /*bit*/ 0); 5764 goto bailout; 5765 } 5766 } 5767 } 5768 5769 /* 5770 * The format command will clear out the "Medium format corrupted" 5771 * status if set by the configuration code. That status is really 5772 * just a way to notify the host that we have lost the media, and 5773 * get them to issue a command that will basically make them think 5774 * they're blowing away the media. 5775 */ 5776 mtx_lock(&lun->lun_lock); 5777 lun->flags &= ~CTL_LUN_INOPERABLE; 5778 mtx_unlock(&lun->lun_lock); 5779 5780 ctsio->scsi_status = SCSI_STATUS_OK; 5781 ctsio->io_hdr.status = CTL_SUCCESS; 5782bailout: 5783 5784 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5785 free(ctsio->kern_data_ptr, M_CTL); 5786 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5787 } 5788 5789 ctl_done((union ctl_io *)ctsio); 5790 return (CTL_RETVAL_COMPLETE); 5791} 5792 5793int 5794ctl_read_buffer(struct ctl_scsiio *ctsio) 5795{ 5796 struct scsi_read_buffer *cdb; 5797 struct ctl_lun *lun; 5798 int buffer_offset, len; 5799 static uint8_t descr[4]; 5800 static uint8_t echo_descr[4] = { 0 }; 5801 5802 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5803 5804 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5805 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5806 5807 if (lun->flags & CTL_LUN_PR_RESERVED) { 5808 uint32_t residx; 5809 5810 /* 5811 * XXX KDM need a lock here. 5812 */ 5813 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5814 if ((lun->res_type == SPR_TYPE_EX_AC 5815 && residx != lun->pr_res_idx) 5816 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5817 || lun->res_type == SPR_TYPE_EX_AC_AR) 5818 && !lun->per_res[residx].registered)) { 5819 ctl_set_reservation_conflict(ctsio); 5820 ctl_done((union ctl_io *)ctsio); 5821 return (CTL_RETVAL_COMPLETE); 5822 } 5823 } 5824 5825 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5826 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5827 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5828 ctl_set_invalid_field(ctsio, 5829 /*sks_valid*/ 1, 5830 /*command*/ 1, 5831 /*field*/ 1, 5832 /*bit_valid*/ 1, 5833 /*bit*/ 4); 5834 ctl_done((union ctl_io *)ctsio); 5835 return (CTL_RETVAL_COMPLETE); 5836 } 5837 5838 len = scsi_3btoul(cdb->length); 5839 buffer_offset = scsi_3btoul(cdb->offset); 5840 5841 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5842 ctl_set_invalid_field(ctsio, 5843 /*sks_valid*/ 1, 5844 /*command*/ 1, 5845 /*field*/ 6, 5846 /*bit_valid*/ 0, 5847 /*bit*/ 0); 5848 ctl_done((union ctl_io *)ctsio); 5849 return (CTL_RETVAL_COMPLETE); 5850 } 5851 5852 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5853 descr[0] = 0; 5854 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5855 ctsio->kern_data_ptr = descr; 5856 len = min(len, sizeof(descr)); 5857 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5858 ctsio->kern_data_ptr = echo_descr; 5859 len = min(len, sizeof(echo_descr)); 5860 } else 5861 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5862 ctsio->kern_data_len = len; 5863 ctsio->kern_total_len = len; 5864 ctsio->kern_data_resid = 0; 5865 ctsio->kern_rel_offset = 0; 5866 ctsio->kern_sg_entries = 0; 5867 ctsio->be_move_done = ctl_config_move_done; 5868 ctl_datamove((union ctl_io *)ctsio); 5869 5870 return (CTL_RETVAL_COMPLETE); 5871} 5872 5873int 5874ctl_write_buffer(struct ctl_scsiio *ctsio) 5875{ 5876 struct scsi_write_buffer *cdb; 5877 struct ctl_lun *lun; 5878 int buffer_offset, len; 5879 5880 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5881 5882 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5883 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5884 5885 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5886 ctl_set_invalid_field(ctsio, 5887 /*sks_valid*/ 1, 5888 /*command*/ 1, 5889 /*field*/ 1, 5890 /*bit_valid*/ 1, 5891 /*bit*/ 4); 5892 ctl_done((union ctl_io *)ctsio); 5893 return (CTL_RETVAL_COMPLETE); 5894 } 5895 5896 len = scsi_3btoul(cdb->length); 5897 buffer_offset = scsi_3btoul(cdb->offset); 5898 5899 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5900 ctl_set_invalid_field(ctsio, 5901 /*sks_valid*/ 1, 5902 /*command*/ 1, 5903 /*field*/ 6, 5904 /*bit_valid*/ 0, 5905 /*bit*/ 0); 5906 ctl_done((union ctl_io *)ctsio); 5907 return (CTL_RETVAL_COMPLETE); 5908 } 5909 5910 /* 5911 * If we've got a kernel request that hasn't been malloced yet, 5912 * malloc it and tell the caller the data buffer is here. 5913 */ 5914 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5915 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5916 ctsio->kern_data_len = len; 5917 ctsio->kern_total_len = len; 5918 ctsio->kern_data_resid = 0; 5919 ctsio->kern_rel_offset = 0; 5920 ctsio->kern_sg_entries = 0; 5921 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5922 ctsio->be_move_done = ctl_config_move_done; 5923 ctl_datamove((union ctl_io *)ctsio); 5924 5925 return (CTL_RETVAL_COMPLETE); 5926 } 5927 5928 ctl_done((union ctl_io *)ctsio); 5929 5930 return (CTL_RETVAL_COMPLETE); 5931} 5932 5933int 5934ctl_write_same(struct ctl_scsiio *ctsio) 5935{ 5936 struct ctl_lun *lun; 5937 struct ctl_lba_len_flags *lbalen; 5938 uint64_t lba; 5939 uint32_t num_blocks; 5940 int len, retval; 5941 uint8_t byte2; 5942 5943 retval = CTL_RETVAL_COMPLETE; 5944 5945 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5946 5947 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5948 5949 switch (ctsio->cdb[0]) { 5950 case WRITE_SAME_10: { 5951 struct scsi_write_same_10 *cdb; 5952 5953 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5954 5955 lba = scsi_4btoul(cdb->addr); 5956 num_blocks = scsi_2btoul(cdb->length); 5957 byte2 = cdb->byte2; 5958 break; 5959 } 5960 case WRITE_SAME_16: { 5961 struct scsi_write_same_16 *cdb; 5962 5963 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5964 5965 lba = scsi_8btou64(cdb->addr); 5966 num_blocks = scsi_4btoul(cdb->length); 5967 byte2 = cdb->byte2; 5968 break; 5969 } 5970 default: 5971 /* 5972 * We got a command we don't support. This shouldn't 5973 * happen, commands should be filtered out above us. 5974 */ 5975 ctl_set_invalid_opcode(ctsio); 5976 ctl_done((union ctl_io *)ctsio); 5977 5978 return (CTL_RETVAL_COMPLETE); 5979 break; /* NOTREACHED */ 5980 } 5981 5982 /* 5983 * The first check is to make sure we're in bounds, the second 5984 * check is to catch wrap-around problems. If the lba + num blocks 5985 * is less than the lba, then we've wrapped around and the block 5986 * range is invalid anyway. 5987 */ 5988 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5989 || ((lba + num_blocks) < lba)) { 5990 ctl_set_lba_out_of_range(ctsio); 5991 ctl_done((union ctl_io *)ctsio); 5992 return (CTL_RETVAL_COMPLETE); 5993 } 5994 5995 /* Zero number of blocks means "to the last logical block" */ 5996 if (num_blocks == 0) { 5997 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5998 ctl_set_invalid_field(ctsio, 5999 /*sks_valid*/ 0, 6000 /*command*/ 1, 6001 /*field*/ 0, 6002 /*bit_valid*/ 0, 6003 /*bit*/ 0); 6004 ctl_done((union ctl_io *)ctsio); 6005 return (CTL_RETVAL_COMPLETE); 6006 } 6007 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6008 } 6009 6010 len = lun->be_lun->blocksize; 6011 6012 /* 6013 * If we've got a kernel request that hasn't been malloced yet, 6014 * malloc it and tell the caller the data buffer is here. 6015 */ 6016 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6017 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6018 ctsio->kern_data_len = len; 6019 ctsio->kern_total_len = len; 6020 ctsio->kern_data_resid = 0; 6021 ctsio->kern_rel_offset = 0; 6022 ctsio->kern_sg_entries = 0; 6023 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6024 ctsio->be_move_done = ctl_config_move_done; 6025 ctl_datamove((union ctl_io *)ctsio); 6026 6027 return (CTL_RETVAL_COMPLETE); 6028 } 6029 6030 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6031 lbalen->lba = lba; 6032 lbalen->len = num_blocks; 6033 lbalen->flags = byte2; 6034 retval = lun->backend->config_write((union ctl_io *)ctsio); 6035 6036 return (retval); 6037} 6038 6039int 6040ctl_unmap(struct ctl_scsiio *ctsio) 6041{ 6042 struct ctl_lun *lun; 6043 struct scsi_unmap *cdb; 6044 struct ctl_ptr_len_flags *ptrlen; 6045 struct scsi_unmap_header *hdr; 6046 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6047 uint64_t lba; 6048 uint32_t num_blocks; 6049 int len, retval; 6050 uint8_t byte2; 6051 6052 retval = CTL_RETVAL_COMPLETE; 6053 6054 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6055 6056 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6057 cdb = (struct scsi_unmap *)ctsio->cdb; 6058 6059 len = scsi_2btoul(cdb->length); 6060 byte2 = cdb->byte2; 6061 6062 /* 6063 * If we've got a kernel request that hasn't been malloced yet, 6064 * malloc it and tell the caller the data buffer is here. 6065 */ 6066 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6067 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6068 ctsio->kern_data_len = len; 6069 ctsio->kern_total_len = len; 6070 ctsio->kern_data_resid = 0; 6071 ctsio->kern_rel_offset = 0; 6072 ctsio->kern_sg_entries = 0; 6073 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6074 ctsio->be_move_done = ctl_config_move_done; 6075 ctl_datamove((union ctl_io *)ctsio); 6076 6077 return (CTL_RETVAL_COMPLETE); 6078 } 6079 6080 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6081 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6082 if (len < sizeof (*hdr) || 6083 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6084 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6085 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6086 ctl_set_invalid_field(ctsio, 6087 /*sks_valid*/ 0, 6088 /*command*/ 0, 6089 /*field*/ 0, 6090 /*bit_valid*/ 0, 6091 /*bit*/ 0); 6092 ctl_done((union ctl_io *)ctsio); 6093 return (CTL_RETVAL_COMPLETE); 6094 } 6095 len = scsi_2btoul(hdr->desc_length); 6096 buf = (struct scsi_unmap_desc *)(hdr + 1); 6097 end = buf + len / sizeof(*buf); 6098 6099 endnz = buf; 6100 for (range = buf; range < end; range++) { 6101 lba = scsi_8btou64(range->lba); 6102 num_blocks = scsi_4btoul(range->length); 6103 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6104 || ((lba + num_blocks) < lba)) { 6105 ctl_set_lba_out_of_range(ctsio); 6106 ctl_done((union ctl_io *)ctsio); 6107 return (CTL_RETVAL_COMPLETE); 6108 } 6109 if (num_blocks != 0) 6110 endnz = range + 1; 6111 } 6112 6113 /* 6114 * Block backend can not handle zero last range. 6115 * Filter it out and return if there is nothing left. 6116 */ 6117 len = (uint8_t *)endnz - (uint8_t *)buf; 6118 if (len == 0) { 6119 ctl_set_success(ctsio); 6120 ctl_done((union ctl_io *)ctsio); 6121 return (CTL_RETVAL_COMPLETE); 6122 } 6123 6124 ptrlen = (struct ctl_ptr_len_flags *) 6125 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6126 ptrlen->ptr = (void *)buf; 6127 ptrlen->len = len; 6128 ptrlen->flags = byte2; 6129 6130 retval = lun->backend->config_write((union ctl_io *)ctsio); 6131 return (retval); 6132} 6133 6134/* 6135 * Note that this function currently doesn't actually do anything inside 6136 * CTL to enforce things if the DQue bit is turned on. 6137 * 6138 * Also note that this function can't be used in the default case, because 6139 * the DQue bit isn't set in the changeable mask for the control mode page 6140 * anyway. This is just here as an example for how to implement a page 6141 * handler, and a placeholder in case we want to allow the user to turn 6142 * tagged queueing on and off. 6143 * 6144 * The D_SENSE bit handling is functional, however, and will turn 6145 * descriptor sense on and off for a given LUN. 6146 */ 6147int 6148ctl_control_page_handler(struct ctl_scsiio *ctsio, 6149 struct ctl_page_index *page_index, uint8_t *page_ptr) 6150{ 6151 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6152 struct ctl_lun *lun; 6153 struct ctl_softc *softc; 6154 int set_ua; 6155 uint32_t initidx; 6156 6157 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6158 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6159 set_ua = 0; 6160 6161 user_cp = (struct scsi_control_page *)page_ptr; 6162 current_cp = (struct scsi_control_page *) 6163 (page_index->page_data + (page_index->page_len * 6164 CTL_PAGE_CURRENT)); 6165 saved_cp = (struct scsi_control_page *) 6166 (page_index->page_data + (page_index->page_len * 6167 CTL_PAGE_SAVED)); 6168 6169 softc = control_softc; 6170 6171 mtx_lock(&lun->lun_lock); 6172 if (((current_cp->rlec & SCP_DSENSE) == 0) 6173 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6174 /* 6175 * Descriptor sense is currently turned off and the user 6176 * wants to turn it on. 6177 */ 6178 current_cp->rlec |= SCP_DSENSE; 6179 saved_cp->rlec |= SCP_DSENSE; 6180 lun->flags |= CTL_LUN_SENSE_DESC; 6181 set_ua = 1; 6182 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6183 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6184 /* 6185 * Descriptor sense is currently turned on, and the user 6186 * wants to turn it off. 6187 */ 6188 current_cp->rlec &= ~SCP_DSENSE; 6189 saved_cp->rlec &= ~SCP_DSENSE; 6190 lun->flags &= ~CTL_LUN_SENSE_DESC; 6191 set_ua = 1; 6192 } 6193 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6194 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6195#ifdef NEEDTOPORT 6196 csevent_log(CSC_CTL | CSC_SHELF_SW | 6197 CTL_UNTAG_TO_UNTAG, 6198 csevent_LogType_Trace, 6199 csevent_Severity_Information, 6200 csevent_AlertLevel_Green, 6201 csevent_FRU_Firmware, 6202 csevent_FRU_Unknown, 6203 "Received untagged to untagged transition"); 6204#endif /* NEEDTOPORT */ 6205 } else { 6206#ifdef NEEDTOPORT 6207 csevent_log(CSC_CTL | CSC_SHELF_SW | 6208 CTL_UNTAG_TO_TAG, 6209 csevent_LogType_ConfigChange, 6210 csevent_Severity_Information, 6211 csevent_AlertLevel_Green, 6212 csevent_FRU_Firmware, 6213 csevent_FRU_Unknown, 6214 "Received untagged to tagged " 6215 "queueing transition"); 6216#endif /* NEEDTOPORT */ 6217 6218 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6219 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6220 set_ua = 1; 6221 } 6222 } else { 6223 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6224#ifdef NEEDTOPORT 6225 csevent_log(CSC_CTL | CSC_SHELF_SW | 6226 CTL_TAG_TO_UNTAG, 6227 csevent_LogType_ConfigChange, 6228 csevent_Severity_Warning, 6229 csevent_AlertLevel_Yellow, 6230 csevent_FRU_Firmware, 6231 csevent_FRU_Unknown, 6232 "Received tagged queueing to untagged " 6233 "transition"); 6234#endif /* NEEDTOPORT */ 6235 6236 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6237 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6238 set_ua = 1; 6239 } else { 6240#ifdef NEEDTOPORT 6241 csevent_log(CSC_CTL | CSC_SHELF_SW | 6242 CTL_TAG_TO_TAG, 6243 csevent_LogType_Trace, 6244 csevent_Severity_Information, 6245 csevent_AlertLevel_Green, 6246 csevent_FRU_Firmware, 6247 csevent_FRU_Unknown, 6248 "Received tagged queueing to tagged " 6249 "queueing transition"); 6250#endif /* NEEDTOPORT */ 6251 } 6252 } 6253 if (set_ua != 0) { 6254 int i; 6255 /* 6256 * Let other initiators know that the mode 6257 * parameters for this LUN have changed. 6258 */ 6259 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6260 if (i == initidx) 6261 continue; 6262 6263 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6264 } 6265 } 6266 mtx_unlock(&lun->lun_lock); 6267 6268 return (0); 6269} 6270 6271int 6272ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6273 struct ctl_page_index *page_index, uint8_t *page_ptr) 6274{ 6275 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6276 struct ctl_lun *lun; 6277 int set_ua; 6278 uint32_t initidx; 6279 6280 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6281 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6282 set_ua = 0; 6283 6284 user_cp = (struct scsi_caching_page *)page_ptr; 6285 current_cp = (struct scsi_caching_page *) 6286 (page_index->page_data + (page_index->page_len * 6287 CTL_PAGE_CURRENT)); 6288 saved_cp = (struct scsi_caching_page *) 6289 (page_index->page_data + (page_index->page_len * 6290 CTL_PAGE_SAVED)); 6291 6292 mtx_lock(&lun->lun_lock); 6293 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6294 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) 6295 set_ua = 1; 6296 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6297 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6298 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6299 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 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_power_sp_handler(struct ctl_scsiio *ctsio, 6320 struct ctl_page_index *page_index, uint8_t *page_ptr) 6321{ 6322 return (0); 6323} 6324 6325int 6326ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6327 struct ctl_page_index *page_index, int pc) 6328{ 6329 struct copan_power_subpage *page; 6330 6331 page = (struct copan_power_subpage *)page_index->page_data + 6332 (page_index->page_len * pc); 6333 6334 switch (pc) { 6335 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6336 /* 6337 * We don't update the changable bits for this page. 6338 */ 6339 break; 6340 case SMS_PAGE_CTRL_CURRENT >> 6: 6341 case SMS_PAGE_CTRL_DEFAULT >> 6: 6342 case SMS_PAGE_CTRL_SAVED >> 6: 6343#ifdef NEEDTOPORT 6344 ctl_update_power_subpage(page); 6345#endif 6346 break; 6347 default: 6348#ifdef NEEDTOPORT 6349 EPRINT(0, "Invalid PC %d!!", pc); 6350#endif 6351 break; 6352 } 6353 return (0); 6354} 6355 6356 6357int 6358ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6359 struct ctl_page_index *page_index, uint8_t *page_ptr) 6360{ 6361 struct copan_aps_subpage *user_sp; 6362 struct copan_aps_subpage *current_sp; 6363 union ctl_modepage_info *modepage_info; 6364 struct ctl_softc *softc; 6365 struct ctl_lun *lun; 6366 int retval; 6367 6368 retval = CTL_RETVAL_COMPLETE; 6369 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6370 (page_index->page_len * CTL_PAGE_CURRENT)); 6371 softc = control_softc; 6372 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6373 6374 user_sp = (struct copan_aps_subpage *)page_ptr; 6375 6376 modepage_info = (union ctl_modepage_info *) 6377 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6378 6379 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6380 modepage_info->header.subpage = page_index->subpage; 6381 modepage_info->aps.lock_active = user_sp->lock_active; 6382 6383 mtx_lock(&softc->ctl_lock); 6384 6385 /* 6386 * If there is a request to lock the LUN and another LUN is locked 6387 * this is an error. If the requested LUN is already locked ignore 6388 * the request. If no LUN is locked attempt to lock it. 6389 * if there is a request to unlock the LUN and the LUN is currently 6390 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6391 * if another LUN is locked or no LUN is locked. 6392 */ 6393 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6394 if (softc->aps_locked_lun == lun->lun) { 6395 /* 6396 * This LUN is already locked, so we're done. 6397 */ 6398 retval = CTL_RETVAL_COMPLETE; 6399 } else if (softc->aps_locked_lun == 0) { 6400 /* 6401 * No one has the lock, pass the request to the 6402 * backend. 6403 */ 6404 retval = lun->backend->config_write( 6405 (union ctl_io *)ctsio); 6406 } else { 6407 /* 6408 * Someone else has the lock, throw out the request. 6409 */ 6410 ctl_set_already_locked(ctsio); 6411 free(ctsio->kern_data_ptr, M_CTL); 6412 ctl_done((union ctl_io *)ctsio); 6413 6414 /* 6415 * Set the return value so that ctl_do_mode_select() 6416 * won't try to complete the command. We already 6417 * completed it here. 6418 */ 6419 retval = CTL_RETVAL_ERROR; 6420 } 6421 } else if (softc->aps_locked_lun == lun->lun) { 6422 /* 6423 * This LUN is locked, so pass the unlock request to the 6424 * backend. 6425 */ 6426 retval = lun->backend->config_write((union ctl_io *)ctsio); 6427 } 6428 mtx_unlock(&softc->ctl_lock); 6429 6430 return (retval); 6431} 6432 6433int 6434ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6435 struct ctl_page_index *page_index, 6436 uint8_t *page_ptr) 6437{ 6438 uint8_t *c; 6439 int i; 6440 6441 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6442 ctl_time_io_secs = 6443 (c[0] << 8) | 6444 (c[1] << 0) | 6445 0; 6446 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6447 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6448 printf("page data:"); 6449 for (i=0; i<8; i++) 6450 printf(" %.2x",page_ptr[i]); 6451 printf("\n"); 6452 return (0); 6453} 6454 6455int 6456ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6457 struct ctl_page_index *page_index, 6458 int pc) 6459{ 6460 struct copan_debugconf_subpage *page; 6461 6462 page = (struct copan_debugconf_subpage *)page_index->page_data + 6463 (page_index->page_len * pc); 6464 6465 switch (pc) { 6466 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6467 case SMS_PAGE_CTRL_DEFAULT >> 6: 6468 case SMS_PAGE_CTRL_SAVED >> 6: 6469 /* 6470 * We don't update the changable or default bits for this page. 6471 */ 6472 break; 6473 case SMS_PAGE_CTRL_CURRENT >> 6: 6474 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6475 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6476 break; 6477 default: 6478#ifdef NEEDTOPORT 6479 EPRINT(0, "Invalid PC %d!!", pc); 6480#endif /* NEEDTOPORT */ 6481 break; 6482 } 6483 return (0); 6484} 6485 6486 6487static int 6488ctl_do_mode_select(union ctl_io *io) 6489{ 6490 struct scsi_mode_page_header *page_header; 6491 struct ctl_page_index *page_index; 6492 struct ctl_scsiio *ctsio; 6493 int control_dev, page_len; 6494 int page_len_offset, page_len_size; 6495 union ctl_modepage_info *modepage_info; 6496 struct ctl_lun *lun; 6497 int *len_left, *len_used; 6498 int retval, i; 6499 6500 ctsio = &io->scsiio; 6501 page_index = NULL; 6502 page_len = 0; 6503 retval = CTL_RETVAL_COMPLETE; 6504 6505 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6506 6507 if (lun->be_lun->lun_type != T_DIRECT) 6508 control_dev = 1; 6509 else 6510 control_dev = 0; 6511 6512 modepage_info = (union ctl_modepage_info *) 6513 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6514 len_left = &modepage_info->header.len_left; 6515 len_used = &modepage_info->header.len_used; 6516 6517do_next_page: 6518 6519 page_header = (struct scsi_mode_page_header *) 6520 (ctsio->kern_data_ptr + *len_used); 6521 6522 if (*len_left == 0) { 6523 free(ctsio->kern_data_ptr, M_CTL); 6524 ctl_set_success(ctsio); 6525 ctl_done((union ctl_io *)ctsio); 6526 return (CTL_RETVAL_COMPLETE); 6527 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6528 6529 free(ctsio->kern_data_ptr, M_CTL); 6530 ctl_set_param_len_error(ctsio); 6531 ctl_done((union ctl_io *)ctsio); 6532 return (CTL_RETVAL_COMPLETE); 6533 6534 } else if ((page_header->page_code & SMPH_SPF) 6535 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6536 6537 free(ctsio->kern_data_ptr, M_CTL); 6538 ctl_set_param_len_error(ctsio); 6539 ctl_done((union ctl_io *)ctsio); 6540 return (CTL_RETVAL_COMPLETE); 6541 } 6542 6543 6544 /* 6545 * XXX KDM should we do something with the block descriptor? 6546 */ 6547 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6548 6549 if ((control_dev != 0) 6550 && (lun->mode_pages.index[i].page_flags & 6551 CTL_PAGE_FLAG_DISK_ONLY)) 6552 continue; 6553 6554 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6555 (page_header->page_code & SMPH_PC_MASK)) 6556 continue; 6557 6558 /* 6559 * If neither page has a subpage code, then we've got a 6560 * match. 6561 */ 6562 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6563 && ((page_header->page_code & SMPH_SPF) == 0)) { 6564 page_index = &lun->mode_pages.index[i]; 6565 page_len = page_header->page_length; 6566 break; 6567 } 6568 6569 /* 6570 * If both pages have subpages, then the subpage numbers 6571 * have to match. 6572 */ 6573 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6574 && (page_header->page_code & SMPH_SPF)) { 6575 struct scsi_mode_page_header_sp *sph; 6576 6577 sph = (struct scsi_mode_page_header_sp *)page_header; 6578 6579 if (lun->mode_pages.index[i].subpage == 6580 sph->subpage) { 6581 page_index = &lun->mode_pages.index[i]; 6582 page_len = scsi_2btoul(sph->page_length); 6583 break; 6584 } 6585 } 6586 } 6587 6588 /* 6589 * If we couldn't find the page, or if we don't have a mode select 6590 * handler for it, send back an error to the user. 6591 */ 6592 if ((page_index == NULL) 6593 || (page_index->select_handler == NULL)) { 6594 ctl_set_invalid_field(ctsio, 6595 /*sks_valid*/ 1, 6596 /*command*/ 0, 6597 /*field*/ *len_used, 6598 /*bit_valid*/ 0, 6599 /*bit*/ 0); 6600 free(ctsio->kern_data_ptr, M_CTL); 6601 ctl_done((union ctl_io *)ctsio); 6602 return (CTL_RETVAL_COMPLETE); 6603 } 6604 6605 if (page_index->page_code & SMPH_SPF) { 6606 page_len_offset = 2; 6607 page_len_size = 2; 6608 } else { 6609 page_len_size = 1; 6610 page_len_offset = 1; 6611 } 6612 6613 /* 6614 * If the length the initiator gives us isn't the one we specify in 6615 * the mode page header, or if they didn't specify enough data in 6616 * the CDB to avoid truncating this page, kick out the request. 6617 */ 6618 if ((page_len != (page_index->page_len - page_len_offset - 6619 page_len_size)) 6620 || (*len_left < page_index->page_len)) { 6621 6622 6623 ctl_set_invalid_field(ctsio, 6624 /*sks_valid*/ 1, 6625 /*command*/ 0, 6626 /*field*/ *len_used + page_len_offset, 6627 /*bit_valid*/ 0, 6628 /*bit*/ 0); 6629 free(ctsio->kern_data_ptr, M_CTL); 6630 ctl_done((union ctl_io *)ctsio); 6631 return (CTL_RETVAL_COMPLETE); 6632 } 6633 6634 /* 6635 * Run through the mode page, checking to make sure that the bits 6636 * the user changed are actually legal for him to change. 6637 */ 6638 for (i = 0; i < page_index->page_len; i++) { 6639 uint8_t *user_byte, *change_mask, *current_byte; 6640 int bad_bit; 6641 int j; 6642 6643 user_byte = (uint8_t *)page_header + i; 6644 change_mask = page_index->page_data + 6645 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6646 current_byte = page_index->page_data + 6647 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6648 6649 /* 6650 * Check to see whether the user set any bits in this byte 6651 * that he is not allowed to set. 6652 */ 6653 if ((*user_byte & ~(*change_mask)) == 6654 (*current_byte & ~(*change_mask))) 6655 continue; 6656 6657 /* 6658 * Go through bit by bit to determine which one is illegal. 6659 */ 6660 bad_bit = 0; 6661 for (j = 7; j >= 0; j--) { 6662 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6663 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6664 bad_bit = i; 6665 break; 6666 } 6667 } 6668 ctl_set_invalid_field(ctsio, 6669 /*sks_valid*/ 1, 6670 /*command*/ 0, 6671 /*field*/ *len_used + i, 6672 /*bit_valid*/ 1, 6673 /*bit*/ bad_bit); 6674 free(ctsio->kern_data_ptr, M_CTL); 6675 ctl_done((union ctl_io *)ctsio); 6676 return (CTL_RETVAL_COMPLETE); 6677 } 6678 6679 /* 6680 * Decrement these before we call the page handler, since we may 6681 * end up getting called back one way or another before the handler 6682 * returns to this context. 6683 */ 6684 *len_left -= page_index->page_len; 6685 *len_used += page_index->page_len; 6686 6687 retval = page_index->select_handler(ctsio, page_index, 6688 (uint8_t *)page_header); 6689 6690 /* 6691 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6692 * wait until this queued command completes to finish processing 6693 * the mode page. If it returns anything other than 6694 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6695 * already set the sense information, freed the data pointer, and 6696 * completed the io for us. 6697 */ 6698 if (retval != CTL_RETVAL_COMPLETE) 6699 goto bailout_no_done; 6700 6701 /* 6702 * If the initiator sent us more than one page, parse the next one. 6703 */ 6704 if (*len_left > 0) 6705 goto do_next_page; 6706 6707 ctl_set_success(ctsio); 6708 free(ctsio->kern_data_ptr, M_CTL); 6709 ctl_done((union ctl_io *)ctsio); 6710 6711bailout_no_done: 6712 6713 return (CTL_RETVAL_COMPLETE); 6714 6715} 6716 6717int 6718ctl_mode_select(struct ctl_scsiio *ctsio) 6719{ 6720 int param_len, pf, sp; 6721 int header_size, bd_len; 6722 int len_left, len_used; 6723 struct ctl_page_index *page_index; 6724 struct ctl_lun *lun; 6725 int control_dev, page_len; 6726 union ctl_modepage_info *modepage_info; 6727 int retval; 6728 6729 pf = 0; 6730 sp = 0; 6731 page_len = 0; 6732 len_used = 0; 6733 len_left = 0; 6734 retval = 0; 6735 bd_len = 0; 6736 page_index = NULL; 6737 6738 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6739 6740 if (lun->be_lun->lun_type != T_DIRECT) 6741 control_dev = 1; 6742 else 6743 control_dev = 0; 6744 6745 switch (ctsio->cdb[0]) { 6746 case MODE_SELECT_6: { 6747 struct scsi_mode_select_6 *cdb; 6748 6749 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6750 6751 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6752 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6753 6754 param_len = cdb->length; 6755 header_size = sizeof(struct scsi_mode_header_6); 6756 break; 6757 } 6758 case MODE_SELECT_10: { 6759 struct scsi_mode_select_10 *cdb; 6760 6761 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6762 6763 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6764 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6765 6766 param_len = scsi_2btoul(cdb->length); 6767 header_size = sizeof(struct scsi_mode_header_10); 6768 break; 6769 } 6770 default: 6771 ctl_set_invalid_opcode(ctsio); 6772 ctl_done((union ctl_io *)ctsio); 6773 return (CTL_RETVAL_COMPLETE); 6774 break; /* NOTREACHED */ 6775 } 6776 6777 /* 6778 * From SPC-3: 6779 * "A parameter list length of zero indicates that the Data-Out Buffer 6780 * shall be empty. This condition shall not be considered as an error." 6781 */ 6782 if (param_len == 0) { 6783 ctl_set_success(ctsio); 6784 ctl_done((union ctl_io *)ctsio); 6785 return (CTL_RETVAL_COMPLETE); 6786 } 6787 6788 /* 6789 * Since we'll hit this the first time through, prior to 6790 * allocation, we don't need to free a data buffer here. 6791 */ 6792 if (param_len < header_size) { 6793 ctl_set_param_len_error(ctsio); 6794 ctl_done((union ctl_io *)ctsio); 6795 return (CTL_RETVAL_COMPLETE); 6796 } 6797 6798 /* 6799 * Allocate the data buffer and grab the user's data. In theory, 6800 * we shouldn't have to sanity check the parameter list length here 6801 * because the maximum size is 64K. We should be able to malloc 6802 * that much without too many problems. 6803 */ 6804 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6805 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6806 ctsio->kern_data_len = param_len; 6807 ctsio->kern_total_len = param_len; 6808 ctsio->kern_data_resid = 0; 6809 ctsio->kern_rel_offset = 0; 6810 ctsio->kern_sg_entries = 0; 6811 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6812 ctsio->be_move_done = ctl_config_move_done; 6813 ctl_datamove((union ctl_io *)ctsio); 6814 6815 return (CTL_RETVAL_COMPLETE); 6816 } 6817 6818 switch (ctsio->cdb[0]) { 6819 case MODE_SELECT_6: { 6820 struct scsi_mode_header_6 *mh6; 6821 6822 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6823 bd_len = mh6->blk_desc_len; 6824 break; 6825 } 6826 case MODE_SELECT_10: { 6827 struct scsi_mode_header_10 *mh10; 6828 6829 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6830 bd_len = scsi_2btoul(mh10->blk_desc_len); 6831 break; 6832 } 6833 default: 6834 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6835 break; 6836 } 6837 6838 if (param_len < (header_size + bd_len)) { 6839 free(ctsio->kern_data_ptr, M_CTL); 6840 ctl_set_param_len_error(ctsio); 6841 ctl_done((union ctl_io *)ctsio); 6842 return (CTL_RETVAL_COMPLETE); 6843 } 6844 6845 /* 6846 * Set the IO_CONT flag, so that if this I/O gets passed to 6847 * ctl_config_write_done(), it'll get passed back to 6848 * ctl_do_mode_select() for further processing, or completion if 6849 * we're all done. 6850 */ 6851 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6852 ctsio->io_cont = ctl_do_mode_select; 6853 6854 modepage_info = (union ctl_modepage_info *) 6855 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6856 6857 memset(modepage_info, 0, sizeof(*modepage_info)); 6858 6859 len_left = param_len - header_size - bd_len; 6860 len_used = header_size + bd_len; 6861 6862 modepage_info->header.len_left = len_left; 6863 modepage_info->header.len_used = len_used; 6864 6865 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6866} 6867 6868int 6869ctl_mode_sense(struct ctl_scsiio *ctsio) 6870{ 6871 struct ctl_lun *lun; 6872 int pc, page_code, dbd, llba, subpage; 6873 int alloc_len, page_len, header_len, total_len; 6874 struct scsi_mode_block_descr *block_desc; 6875 struct ctl_page_index *page_index; 6876 int control_dev; 6877 6878 dbd = 0; 6879 llba = 0; 6880 block_desc = NULL; 6881 page_index = NULL; 6882 6883 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6884 6885 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6886 6887 if (lun->be_lun->lun_type != T_DIRECT) 6888 control_dev = 1; 6889 else 6890 control_dev = 0; 6891 6892 if (lun->flags & CTL_LUN_PR_RESERVED) { 6893 uint32_t residx; 6894 6895 /* 6896 * XXX KDM need a lock here. 6897 */ 6898 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6899 if ((lun->res_type == SPR_TYPE_EX_AC 6900 && residx != lun->pr_res_idx) 6901 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6902 || lun->res_type == SPR_TYPE_EX_AC_AR) 6903 && !lun->per_res[residx].registered)) { 6904 ctl_set_reservation_conflict(ctsio); 6905 ctl_done((union ctl_io *)ctsio); 6906 return (CTL_RETVAL_COMPLETE); 6907 } 6908 } 6909 6910 switch (ctsio->cdb[0]) { 6911 case MODE_SENSE_6: { 6912 struct scsi_mode_sense_6 *cdb; 6913 6914 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6915 6916 header_len = sizeof(struct scsi_mode_hdr_6); 6917 if (cdb->byte2 & SMS_DBD) 6918 dbd = 1; 6919 else 6920 header_len += sizeof(struct scsi_mode_block_descr); 6921 6922 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6923 page_code = cdb->page & SMS_PAGE_CODE; 6924 subpage = cdb->subpage; 6925 alloc_len = cdb->length; 6926 break; 6927 } 6928 case MODE_SENSE_10: { 6929 struct scsi_mode_sense_10 *cdb; 6930 6931 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6932 6933 header_len = sizeof(struct scsi_mode_hdr_10); 6934 6935 if (cdb->byte2 & SMS_DBD) 6936 dbd = 1; 6937 else 6938 header_len += sizeof(struct scsi_mode_block_descr); 6939 if (cdb->byte2 & SMS10_LLBAA) 6940 llba = 1; 6941 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6942 page_code = cdb->page & SMS_PAGE_CODE; 6943 subpage = cdb->subpage; 6944 alloc_len = scsi_2btoul(cdb->length); 6945 break; 6946 } 6947 default: 6948 ctl_set_invalid_opcode(ctsio); 6949 ctl_done((union ctl_io *)ctsio); 6950 return (CTL_RETVAL_COMPLETE); 6951 break; /* NOTREACHED */ 6952 } 6953 6954 /* 6955 * We have to make a first pass through to calculate the size of 6956 * the pages that match the user's query. Then we allocate enough 6957 * memory to hold it, and actually copy the data into the buffer. 6958 */ 6959 switch (page_code) { 6960 case SMS_ALL_PAGES_PAGE: { 6961 int i; 6962 6963 page_len = 0; 6964 6965 /* 6966 * At the moment, values other than 0 and 0xff here are 6967 * reserved according to SPC-3. 6968 */ 6969 if ((subpage != SMS_SUBPAGE_PAGE_0) 6970 && (subpage != SMS_SUBPAGE_ALL)) { 6971 ctl_set_invalid_field(ctsio, 6972 /*sks_valid*/ 1, 6973 /*command*/ 1, 6974 /*field*/ 3, 6975 /*bit_valid*/ 0, 6976 /*bit*/ 0); 6977 ctl_done((union ctl_io *)ctsio); 6978 return (CTL_RETVAL_COMPLETE); 6979 } 6980 6981 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6982 if ((control_dev != 0) 6983 && (lun->mode_pages.index[i].page_flags & 6984 CTL_PAGE_FLAG_DISK_ONLY)) 6985 continue; 6986 6987 /* 6988 * We don't use this subpage if the user didn't 6989 * request all subpages. 6990 */ 6991 if ((lun->mode_pages.index[i].subpage != 0) 6992 && (subpage == SMS_SUBPAGE_PAGE_0)) 6993 continue; 6994 6995#if 0 6996 printf("found page %#x len %d\n", 6997 lun->mode_pages.index[i].page_code & 6998 SMPH_PC_MASK, 6999 lun->mode_pages.index[i].page_len); 7000#endif 7001 page_len += lun->mode_pages.index[i].page_len; 7002 } 7003 break; 7004 } 7005 default: { 7006 int i; 7007 7008 page_len = 0; 7009 7010 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7011 /* Look for the right page code */ 7012 if ((lun->mode_pages.index[i].page_code & 7013 SMPH_PC_MASK) != page_code) 7014 continue; 7015 7016 /* Look for the right subpage or the subpage wildcard*/ 7017 if ((lun->mode_pages.index[i].subpage != subpage) 7018 && (subpage != SMS_SUBPAGE_ALL)) 7019 continue; 7020 7021 /* Make sure the page is supported for this dev type */ 7022 if ((control_dev != 0) 7023 && (lun->mode_pages.index[i].page_flags & 7024 CTL_PAGE_FLAG_DISK_ONLY)) 7025 continue; 7026 7027#if 0 7028 printf("found page %#x len %d\n", 7029 lun->mode_pages.index[i].page_code & 7030 SMPH_PC_MASK, 7031 lun->mode_pages.index[i].page_len); 7032#endif 7033 7034 page_len += lun->mode_pages.index[i].page_len; 7035 } 7036 7037 if (page_len == 0) { 7038 ctl_set_invalid_field(ctsio, 7039 /*sks_valid*/ 1, 7040 /*command*/ 1, 7041 /*field*/ 2, 7042 /*bit_valid*/ 1, 7043 /*bit*/ 5); 7044 ctl_done((union ctl_io *)ctsio); 7045 return (CTL_RETVAL_COMPLETE); 7046 } 7047 break; 7048 } 7049 } 7050 7051 total_len = header_len + page_len; 7052#if 0 7053 printf("header_len = %d, page_len = %d, total_len = %d\n", 7054 header_len, page_len, total_len); 7055#endif 7056 7057 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7058 ctsio->kern_sg_entries = 0; 7059 ctsio->kern_data_resid = 0; 7060 ctsio->kern_rel_offset = 0; 7061 if (total_len < alloc_len) { 7062 ctsio->residual = alloc_len - total_len; 7063 ctsio->kern_data_len = total_len; 7064 ctsio->kern_total_len = total_len; 7065 } else { 7066 ctsio->residual = 0; 7067 ctsio->kern_data_len = alloc_len; 7068 ctsio->kern_total_len = alloc_len; 7069 } 7070 7071 switch (ctsio->cdb[0]) { 7072 case MODE_SENSE_6: { 7073 struct scsi_mode_hdr_6 *header; 7074 7075 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7076 7077 header->datalen = ctl_min(total_len - 1, 254); 7078 if (control_dev == 0) 7079 header->dev_specific = 0x10; /* DPOFUA */ 7080 if (dbd) 7081 header->block_descr_len = 0; 7082 else 7083 header->block_descr_len = 7084 sizeof(struct scsi_mode_block_descr); 7085 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7086 break; 7087 } 7088 case MODE_SENSE_10: { 7089 struct scsi_mode_hdr_10 *header; 7090 int datalen; 7091 7092 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7093 7094 datalen = ctl_min(total_len - 2, 65533); 7095 scsi_ulto2b(datalen, header->datalen); 7096 if (control_dev == 0) 7097 header->dev_specific = 0x10; /* DPOFUA */ 7098 if (dbd) 7099 scsi_ulto2b(0, header->block_descr_len); 7100 else 7101 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7102 header->block_descr_len); 7103 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7104 break; 7105 } 7106 default: 7107 panic("invalid CDB type %#x", ctsio->cdb[0]); 7108 break; /* NOTREACHED */ 7109 } 7110 7111 /* 7112 * If we've got a disk, use its blocksize in the block 7113 * descriptor. Otherwise, just set it to 0. 7114 */ 7115 if (dbd == 0) { 7116 if (control_dev != 0) 7117 scsi_ulto3b(lun->be_lun->blocksize, 7118 block_desc->block_len); 7119 else 7120 scsi_ulto3b(0, block_desc->block_len); 7121 } 7122 7123 switch (page_code) { 7124 case SMS_ALL_PAGES_PAGE: { 7125 int i, data_used; 7126 7127 data_used = header_len; 7128 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7129 struct ctl_page_index *page_index; 7130 7131 page_index = &lun->mode_pages.index[i]; 7132 7133 if ((control_dev != 0) 7134 && (page_index->page_flags & 7135 CTL_PAGE_FLAG_DISK_ONLY)) 7136 continue; 7137 7138 /* 7139 * We don't use this subpage if the user didn't 7140 * request all subpages. We already checked (above) 7141 * to make sure the user only specified a subpage 7142 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7143 */ 7144 if ((page_index->subpage != 0) 7145 && (subpage == SMS_SUBPAGE_PAGE_0)) 7146 continue; 7147 7148 /* 7149 * Call the handler, if it exists, to update the 7150 * page to the latest values. 7151 */ 7152 if (page_index->sense_handler != NULL) 7153 page_index->sense_handler(ctsio, page_index,pc); 7154 7155 memcpy(ctsio->kern_data_ptr + data_used, 7156 page_index->page_data + 7157 (page_index->page_len * pc), 7158 page_index->page_len); 7159 data_used += page_index->page_len; 7160 } 7161 break; 7162 } 7163 default: { 7164 int i, data_used; 7165 7166 data_used = header_len; 7167 7168 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7169 struct ctl_page_index *page_index; 7170 7171 page_index = &lun->mode_pages.index[i]; 7172 7173 /* Look for the right page code */ 7174 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7175 continue; 7176 7177 /* Look for the right subpage or the subpage wildcard*/ 7178 if ((page_index->subpage != subpage) 7179 && (subpage != SMS_SUBPAGE_ALL)) 7180 continue; 7181 7182 /* Make sure the page is supported for this dev type */ 7183 if ((control_dev != 0) 7184 && (page_index->page_flags & 7185 CTL_PAGE_FLAG_DISK_ONLY)) 7186 continue; 7187 7188 /* 7189 * Call the handler, if it exists, to update the 7190 * page to the latest values. 7191 */ 7192 if (page_index->sense_handler != NULL) 7193 page_index->sense_handler(ctsio, page_index,pc); 7194 7195 memcpy(ctsio->kern_data_ptr + data_used, 7196 page_index->page_data + 7197 (page_index->page_len * pc), 7198 page_index->page_len); 7199 data_used += page_index->page_len; 7200 } 7201 break; 7202 } 7203 } 7204 7205 ctsio->scsi_status = SCSI_STATUS_OK; 7206 7207 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7208 ctsio->be_move_done = ctl_config_move_done; 7209 ctl_datamove((union ctl_io *)ctsio); 7210 7211 return (CTL_RETVAL_COMPLETE); 7212} 7213 7214int 7215ctl_read_capacity(struct ctl_scsiio *ctsio) 7216{ 7217 struct scsi_read_capacity *cdb; 7218 struct scsi_read_capacity_data *data; 7219 struct ctl_lun *lun; 7220 uint32_t lba; 7221 7222 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7223 7224 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7225 7226 lba = scsi_4btoul(cdb->addr); 7227 if (((cdb->pmi & SRC_PMI) == 0) 7228 && (lba != 0)) { 7229 ctl_set_invalid_field(/*ctsio*/ ctsio, 7230 /*sks_valid*/ 1, 7231 /*command*/ 1, 7232 /*field*/ 2, 7233 /*bit_valid*/ 0, 7234 /*bit*/ 0); 7235 ctl_done((union ctl_io *)ctsio); 7236 return (CTL_RETVAL_COMPLETE); 7237 } 7238 7239 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7240 7241 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7242 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7243 ctsio->residual = 0; 7244 ctsio->kern_data_len = sizeof(*data); 7245 ctsio->kern_total_len = sizeof(*data); 7246 ctsio->kern_data_resid = 0; 7247 ctsio->kern_rel_offset = 0; 7248 ctsio->kern_sg_entries = 0; 7249 7250 /* 7251 * If the maximum LBA is greater than 0xfffffffe, the user must 7252 * issue a SERVICE ACTION IN (16) command, with the read capacity 7253 * serivce action set. 7254 */ 7255 if (lun->be_lun->maxlba > 0xfffffffe) 7256 scsi_ulto4b(0xffffffff, data->addr); 7257 else 7258 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7259 7260 /* 7261 * XXX KDM this may not be 512 bytes... 7262 */ 7263 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7264 7265 ctsio->scsi_status = SCSI_STATUS_OK; 7266 7267 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7268 ctsio->be_move_done = ctl_config_move_done; 7269 ctl_datamove((union ctl_io *)ctsio); 7270 7271 return (CTL_RETVAL_COMPLETE); 7272} 7273 7274int 7275ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7276{ 7277 struct scsi_read_capacity_16 *cdb; 7278 struct scsi_read_capacity_data_long *data; 7279 struct ctl_lun *lun; 7280 uint64_t lba; 7281 uint32_t alloc_len; 7282 7283 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7284 7285 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7286 7287 alloc_len = scsi_4btoul(cdb->alloc_len); 7288 lba = scsi_8btou64(cdb->addr); 7289 7290 if ((cdb->reladr & SRC16_PMI) 7291 && (lba != 0)) { 7292 ctl_set_invalid_field(/*ctsio*/ ctsio, 7293 /*sks_valid*/ 1, 7294 /*command*/ 1, 7295 /*field*/ 2, 7296 /*bit_valid*/ 0, 7297 /*bit*/ 0); 7298 ctl_done((union ctl_io *)ctsio); 7299 return (CTL_RETVAL_COMPLETE); 7300 } 7301 7302 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7303 7304 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7305 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7306 7307 if (sizeof(*data) < alloc_len) { 7308 ctsio->residual = alloc_len - sizeof(*data); 7309 ctsio->kern_data_len = sizeof(*data); 7310 ctsio->kern_total_len = sizeof(*data); 7311 } else { 7312 ctsio->residual = 0; 7313 ctsio->kern_data_len = alloc_len; 7314 ctsio->kern_total_len = alloc_len; 7315 } 7316 ctsio->kern_data_resid = 0; 7317 ctsio->kern_rel_offset = 0; 7318 ctsio->kern_sg_entries = 0; 7319 7320 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7321 /* XXX KDM this may not be 512 bytes... */ 7322 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7323 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7324 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7325 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7326 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7327 7328 ctsio->scsi_status = SCSI_STATUS_OK; 7329 7330 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7331 ctsio->be_move_done = ctl_config_move_done; 7332 ctl_datamove((union ctl_io *)ctsio); 7333 7334 return (CTL_RETVAL_COMPLETE); 7335} 7336 7337int 7338ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7339{ 7340 struct scsi_maintenance_in *cdb; 7341 int retval; 7342 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7343 int num_target_port_groups, num_target_ports, single; 7344 struct ctl_lun *lun; 7345 struct ctl_softc *softc; 7346 struct ctl_port *port; 7347 struct scsi_target_group_data *rtg_ptr; 7348 struct scsi_target_group_data_extended *rtg_ext_ptr; 7349 struct scsi_target_port_group_descriptor *tpg_desc; 7350 7351 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7352 7353 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7354 softc = control_softc; 7355 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7356 7357 retval = CTL_RETVAL_COMPLETE; 7358 7359 switch (cdb->byte2 & STG_PDF_MASK) { 7360 case STG_PDF_LENGTH: 7361 ext = 0; 7362 break; 7363 case STG_PDF_EXTENDED: 7364 ext = 1; 7365 break; 7366 default: 7367 ctl_set_invalid_field(/*ctsio*/ ctsio, 7368 /*sks_valid*/ 1, 7369 /*command*/ 1, 7370 /*field*/ 2, 7371 /*bit_valid*/ 1, 7372 /*bit*/ 5); 7373 ctl_done((union ctl_io *)ctsio); 7374 return(retval); 7375 } 7376 7377 single = ctl_is_single; 7378 if (single) 7379 num_target_port_groups = 1; 7380 else 7381 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7382 num_target_ports = 0; 7383 mtx_lock(&softc->ctl_lock); 7384 STAILQ_FOREACH(port, &softc->port_list, links) { 7385 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7386 continue; 7387 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7388 continue; 7389 num_target_ports++; 7390 } 7391 mtx_unlock(&softc->ctl_lock); 7392 7393 if (ext) 7394 total_len = sizeof(struct scsi_target_group_data_extended); 7395 else 7396 total_len = sizeof(struct scsi_target_group_data); 7397 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7398 num_target_port_groups + 7399 sizeof(struct scsi_target_port_descriptor) * 7400 num_target_ports * num_target_port_groups; 7401 7402 alloc_len = scsi_4btoul(cdb->length); 7403 7404 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7405 7406 ctsio->kern_sg_entries = 0; 7407 7408 if (total_len < alloc_len) { 7409 ctsio->residual = alloc_len - total_len; 7410 ctsio->kern_data_len = total_len; 7411 ctsio->kern_total_len = total_len; 7412 } else { 7413 ctsio->residual = 0; 7414 ctsio->kern_data_len = alloc_len; 7415 ctsio->kern_total_len = alloc_len; 7416 } 7417 ctsio->kern_data_resid = 0; 7418 ctsio->kern_rel_offset = 0; 7419 7420 if (ext) { 7421 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7422 ctsio->kern_data_ptr; 7423 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7424 rtg_ext_ptr->format_type = 0x10; 7425 rtg_ext_ptr->implicit_transition_time = 0; 7426 tpg_desc = &rtg_ext_ptr->groups[0]; 7427 } else { 7428 rtg_ptr = (struct scsi_target_group_data *) 7429 ctsio->kern_data_ptr; 7430 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7431 tpg_desc = &rtg_ptr->groups[0]; 7432 } 7433 7434 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7435 mtx_lock(&softc->ctl_lock); 7436 for (g = 0; g < num_target_port_groups; g++) { 7437 if (g == pg) 7438 tpg_desc->pref_state = TPG_PRIMARY | 7439 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7440 else 7441 tpg_desc->pref_state = 7442 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7443 tpg_desc->support = TPG_AO_SUP; 7444 if (!single) 7445 tpg_desc->support |= TPG_AN_SUP; 7446 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7447 tpg_desc->status = TPG_IMPLICIT; 7448 pc = 0; 7449 STAILQ_FOREACH(port, &softc->port_list, links) { 7450 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7451 continue; 7452 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7453 CTL_MAX_LUNS) 7454 continue; 7455 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7456 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7457 relative_target_port_identifier); 7458 pc++; 7459 } 7460 tpg_desc->target_port_count = pc; 7461 tpg_desc = (struct scsi_target_port_group_descriptor *) 7462 &tpg_desc->descriptors[pc]; 7463 } 7464 mtx_unlock(&softc->ctl_lock); 7465 7466 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7467 ctsio->be_move_done = ctl_config_move_done; 7468 7469 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7470 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7471 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7472 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7473 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7474 7475 ctl_datamove((union ctl_io *)ctsio); 7476 return(retval); 7477} 7478 7479int 7480ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7481{ 7482 struct ctl_lun *lun; 7483 struct scsi_report_supported_opcodes *cdb; 7484 const struct ctl_cmd_entry *entry, *sentry; 7485 struct scsi_report_supported_opcodes_all *all; 7486 struct scsi_report_supported_opcodes_descr *descr; 7487 struct scsi_report_supported_opcodes_one *one; 7488 int retval; 7489 int alloc_len, total_len; 7490 int opcode, service_action, i, j, num; 7491 7492 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7493 7494 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7495 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7496 7497 retval = CTL_RETVAL_COMPLETE; 7498 7499 opcode = cdb->requested_opcode; 7500 service_action = scsi_2btoul(cdb->requested_service_action); 7501 switch (cdb->options & RSO_OPTIONS_MASK) { 7502 case RSO_OPTIONS_ALL: 7503 num = 0; 7504 for (i = 0; i < 256; i++) { 7505 entry = &ctl_cmd_table[i]; 7506 if (entry->flags & CTL_CMD_FLAG_SA5) { 7507 for (j = 0; j < 32; j++) { 7508 sentry = &((const struct ctl_cmd_entry *) 7509 entry->execute)[j]; 7510 if (ctl_cmd_applicable( 7511 lun->be_lun->lun_type, sentry)) 7512 num++; 7513 } 7514 } else { 7515 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7516 entry)) 7517 num++; 7518 } 7519 } 7520 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7521 num * sizeof(struct scsi_report_supported_opcodes_descr); 7522 break; 7523 case RSO_OPTIONS_OC: 7524 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7525 ctl_set_invalid_field(/*ctsio*/ ctsio, 7526 /*sks_valid*/ 1, 7527 /*command*/ 1, 7528 /*field*/ 2, 7529 /*bit_valid*/ 1, 7530 /*bit*/ 2); 7531 ctl_done((union ctl_io *)ctsio); 7532 return (CTL_RETVAL_COMPLETE); 7533 } 7534 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7535 break; 7536 case RSO_OPTIONS_OC_SA: 7537 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7538 service_action >= 32) { 7539 ctl_set_invalid_field(/*ctsio*/ ctsio, 7540 /*sks_valid*/ 1, 7541 /*command*/ 1, 7542 /*field*/ 2, 7543 /*bit_valid*/ 1, 7544 /*bit*/ 2); 7545 ctl_done((union ctl_io *)ctsio); 7546 return (CTL_RETVAL_COMPLETE); 7547 } 7548 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7549 break; 7550 default: 7551 ctl_set_invalid_field(/*ctsio*/ ctsio, 7552 /*sks_valid*/ 1, 7553 /*command*/ 1, 7554 /*field*/ 2, 7555 /*bit_valid*/ 1, 7556 /*bit*/ 2); 7557 ctl_done((union ctl_io *)ctsio); 7558 return (CTL_RETVAL_COMPLETE); 7559 } 7560 7561 alloc_len = scsi_4btoul(cdb->length); 7562 7563 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7564 7565 ctsio->kern_sg_entries = 0; 7566 7567 if (total_len < alloc_len) { 7568 ctsio->residual = alloc_len - total_len; 7569 ctsio->kern_data_len = total_len; 7570 ctsio->kern_total_len = total_len; 7571 } else { 7572 ctsio->residual = 0; 7573 ctsio->kern_data_len = alloc_len; 7574 ctsio->kern_total_len = alloc_len; 7575 } 7576 ctsio->kern_data_resid = 0; 7577 ctsio->kern_rel_offset = 0; 7578 7579 switch (cdb->options & RSO_OPTIONS_MASK) { 7580 case RSO_OPTIONS_ALL: 7581 all = (struct scsi_report_supported_opcodes_all *) 7582 ctsio->kern_data_ptr; 7583 num = 0; 7584 for (i = 0; i < 256; i++) { 7585 entry = &ctl_cmd_table[i]; 7586 if (entry->flags & CTL_CMD_FLAG_SA5) { 7587 for (j = 0; j < 32; j++) { 7588 sentry = &((const struct ctl_cmd_entry *) 7589 entry->execute)[j]; 7590 if (!ctl_cmd_applicable( 7591 lun->be_lun->lun_type, sentry)) 7592 continue; 7593 descr = &all->descr[num++]; 7594 descr->opcode = i; 7595 scsi_ulto2b(j, descr->service_action); 7596 descr->flags = RSO_SERVACTV; 7597 scsi_ulto2b(sentry->length, 7598 descr->cdb_length); 7599 } 7600 } else { 7601 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7602 entry)) 7603 continue; 7604 descr = &all->descr[num++]; 7605 descr->opcode = i; 7606 scsi_ulto2b(0, descr->service_action); 7607 descr->flags = 0; 7608 scsi_ulto2b(entry->length, descr->cdb_length); 7609 } 7610 } 7611 scsi_ulto4b( 7612 num * sizeof(struct scsi_report_supported_opcodes_descr), 7613 all->length); 7614 break; 7615 case RSO_OPTIONS_OC: 7616 one = (struct scsi_report_supported_opcodes_one *) 7617 ctsio->kern_data_ptr; 7618 entry = &ctl_cmd_table[opcode]; 7619 goto fill_one; 7620 case RSO_OPTIONS_OC_SA: 7621 one = (struct scsi_report_supported_opcodes_one *) 7622 ctsio->kern_data_ptr; 7623 entry = &ctl_cmd_table[opcode]; 7624 entry = &((const struct ctl_cmd_entry *) 7625 entry->execute)[service_action]; 7626fill_one: 7627 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7628 one->support = 3; 7629 scsi_ulto2b(entry->length, one->cdb_length); 7630 one->cdb_usage[0] = opcode; 7631 memcpy(&one->cdb_usage[1], entry->usage, 7632 entry->length - 1); 7633 } else 7634 one->support = 1; 7635 break; 7636 } 7637 7638 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7639 ctsio->be_move_done = ctl_config_move_done; 7640 7641 ctl_datamove((union ctl_io *)ctsio); 7642 return(retval); 7643} 7644 7645int 7646ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7647{ 7648 struct ctl_lun *lun; 7649 struct scsi_report_supported_tmf *cdb; 7650 struct scsi_report_supported_tmf_data *data; 7651 int retval; 7652 int alloc_len, total_len; 7653 7654 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7655 7656 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7657 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7658 7659 retval = CTL_RETVAL_COMPLETE; 7660 7661 total_len = sizeof(struct scsi_report_supported_tmf_data); 7662 alloc_len = scsi_4btoul(cdb->length); 7663 7664 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7665 7666 ctsio->kern_sg_entries = 0; 7667 7668 if (total_len < alloc_len) { 7669 ctsio->residual = alloc_len - total_len; 7670 ctsio->kern_data_len = total_len; 7671 ctsio->kern_total_len = total_len; 7672 } else { 7673 ctsio->residual = 0; 7674 ctsio->kern_data_len = alloc_len; 7675 ctsio->kern_total_len = alloc_len; 7676 } 7677 ctsio->kern_data_resid = 0; 7678 ctsio->kern_rel_offset = 0; 7679 7680 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7681 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7682 data->byte2 |= RST_ITNRS; 7683 7684 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7685 ctsio->be_move_done = ctl_config_move_done; 7686 7687 ctl_datamove((union ctl_io *)ctsio); 7688 return (retval); 7689} 7690 7691int 7692ctl_report_timestamp(struct ctl_scsiio *ctsio) 7693{ 7694 struct ctl_lun *lun; 7695 struct scsi_report_timestamp *cdb; 7696 struct scsi_report_timestamp_data *data; 7697 struct timeval tv; 7698 int64_t timestamp; 7699 int retval; 7700 int alloc_len, total_len; 7701 7702 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7703 7704 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7705 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7706 7707 retval = CTL_RETVAL_COMPLETE; 7708 7709 total_len = sizeof(struct scsi_report_timestamp_data); 7710 alloc_len = scsi_4btoul(cdb->length); 7711 7712 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7713 7714 ctsio->kern_sg_entries = 0; 7715 7716 if (total_len < alloc_len) { 7717 ctsio->residual = alloc_len - total_len; 7718 ctsio->kern_data_len = total_len; 7719 ctsio->kern_total_len = total_len; 7720 } else { 7721 ctsio->residual = 0; 7722 ctsio->kern_data_len = alloc_len; 7723 ctsio->kern_total_len = alloc_len; 7724 } 7725 ctsio->kern_data_resid = 0; 7726 ctsio->kern_rel_offset = 0; 7727 7728 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7729 scsi_ulto2b(sizeof(*data) - 2, data->length); 7730 data->origin = RTS_ORIG_OUTSIDE; 7731 getmicrotime(&tv); 7732 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7733 scsi_ulto4b(timestamp >> 16, data->timestamp); 7734 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7735 7736 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7737 ctsio->be_move_done = ctl_config_move_done; 7738 7739 ctl_datamove((union ctl_io *)ctsio); 7740 return (retval); 7741} 7742 7743int 7744ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7745{ 7746 struct scsi_per_res_in *cdb; 7747 int alloc_len, total_len = 0; 7748 /* struct scsi_per_res_in_rsrv in_data; */ 7749 struct ctl_lun *lun; 7750 struct ctl_softc *softc; 7751 7752 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7753 7754 softc = control_softc; 7755 7756 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7757 7758 alloc_len = scsi_2btoul(cdb->length); 7759 7760 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7761 7762retry: 7763 mtx_lock(&lun->lun_lock); 7764 switch (cdb->action) { 7765 case SPRI_RK: /* read keys */ 7766 total_len = sizeof(struct scsi_per_res_in_keys) + 7767 lun->pr_key_count * 7768 sizeof(struct scsi_per_res_key); 7769 break; 7770 case SPRI_RR: /* read reservation */ 7771 if (lun->flags & CTL_LUN_PR_RESERVED) 7772 total_len = sizeof(struct scsi_per_res_in_rsrv); 7773 else 7774 total_len = sizeof(struct scsi_per_res_in_header); 7775 break; 7776 case SPRI_RC: /* report capabilities */ 7777 total_len = sizeof(struct scsi_per_res_cap); 7778 break; 7779 case SPRI_RS: /* read full status */ 7780 total_len = sizeof(struct scsi_per_res_in_header) + 7781 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7782 lun->pr_key_count; 7783 break; 7784 default: 7785 panic("Invalid PR type %x", cdb->action); 7786 } 7787 mtx_unlock(&lun->lun_lock); 7788 7789 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7790 7791 if (total_len < alloc_len) { 7792 ctsio->residual = alloc_len - total_len; 7793 ctsio->kern_data_len = total_len; 7794 ctsio->kern_total_len = total_len; 7795 } else { 7796 ctsio->residual = 0; 7797 ctsio->kern_data_len = alloc_len; 7798 ctsio->kern_total_len = alloc_len; 7799 } 7800 7801 ctsio->kern_data_resid = 0; 7802 ctsio->kern_rel_offset = 0; 7803 ctsio->kern_sg_entries = 0; 7804 7805 mtx_lock(&lun->lun_lock); 7806 switch (cdb->action) { 7807 case SPRI_RK: { // read keys 7808 struct scsi_per_res_in_keys *res_keys; 7809 int i, key_count; 7810 7811 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7812 7813 /* 7814 * We had to drop the lock to allocate our buffer, which 7815 * leaves time for someone to come in with another 7816 * persistent reservation. (That is unlikely, though, 7817 * since this should be the only persistent reservation 7818 * command active right now.) 7819 */ 7820 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7821 (lun->pr_key_count * 7822 sizeof(struct scsi_per_res_key)))){ 7823 mtx_unlock(&lun->lun_lock); 7824 free(ctsio->kern_data_ptr, M_CTL); 7825 printf("%s: reservation length changed, retrying\n", 7826 __func__); 7827 goto retry; 7828 } 7829 7830 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7831 7832 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7833 lun->pr_key_count, res_keys->header.length); 7834 7835 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7836 if (!lun->per_res[i].registered) 7837 continue; 7838 7839 /* 7840 * We used lun->pr_key_count to calculate the 7841 * size to allocate. If it turns out the number of 7842 * initiators with the registered flag set is 7843 * larger than that (i.e. they haven't been kept in 7844 * sync), we've got a problem. 7845 */ 7846 if (key_count >= lun->pr_key_count) { 7847#ifdef NEEDTOPORT 7848 csevent_log(CSC_CTL | CSC_SHELF_SW | 7849 CTL_PR_ERROR, 7850 csevent_LogType_Fault, 7851 csevent_AlertLevel_Yellow, 7852 csevent_FRU_ShelfController, 7853 csevent_FRU_Firmware, 7854 csevent_FRU_Unknown, 7855 "registered keys %d >= key " 7856 "count %d", key_count, 7857 lun->pr_key_count); 7858#endif 7859 key_count++; 7860 continue; 7861 } 7862 memcpy(res_keys->keys[key_count].key, 7863 lun->per_res[i].res_key.key, 7864 ctl_min(sizeof(res_keys->keys[key_count].key), 7865 sizeof(lun->per_res[i].res_key))); 7866 key_count++; 7867 } 7868 break; 7869 } 7870 case SPRI_RR: { // read reservation 7871 struct scsi_per_res_in_rsrv *res; 7872 int tmp_len, header_only; 7873 7874 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7875 7876 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7877 7878 if (lun->flags & CTL_LUN_PR_RESERVED) 7879 { 7880 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7881 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7882 res->header.length); 7883 header_only = 0; 7884 } else { 7885 tmp_len = sizeof(struct scsi_per_res_in_header); 7886 scsi_ulto4b(0, res->header.length); 7887 header_only = 1; 7888 } 7889 7890 /* 7891 * We had to drop the lock to allocate our buffer, which 7892 * leaves time for someone to come in with another 7893 * persistent reservation. (That is unlikely, though, 7894 * since this should be the only persistent reservation 7895 * command active right now.) 7896 */ 7897 if (tmp_len != total_len) { 7898 mtx_unlock(&lun->lun_lock); 7899 free(ctsio->kern_data_ptr, M_CTL); 7900 printf("%s: reservation status changed, retrying\n", 7901 __func__); 7902 goto retry; 7903 } 7904 7905 /* 7906 * No reservation held, so we're done. 7907 */ 7908 if (header_only != 0) 7909 break; 7910 7911 /* 7912 * If the registration is an All Registrants type, the key 7913 * is 0, since it doesn't really matter. 7914 */ 7915 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7916 memcpy(res->data.reservation, 7917 &lun->per_res[lun->pr_res_idx].res_key, 7918 sizeof(struct scsi_per_res_key)); 7919 } 7920 res->data.scopetype = lun->res_type; 7921 break; 7922 } 7923 case SPRI_RC: //report capabilities 7924 { 7925 struct scsi_per_res_cap *res_cap; 7926 uint16_t type_mask; 7927 7928 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7929 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7930 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7931 type_mask = SPRI_TM_WR_EX_AR | 7932 SPRI_TM_EX_AC_RO | 7933 SPRI_TM_WR_EX_RO | 7934 SPRI_TM_EX_AC | 7935 SPRI_TM_WR_EX | 7936 SPRI_TM_EX_AC_AR; 7937 scsi_ulto2b(type_mask, res_cap->type_mask); 7938 break; 7939 } 7940 case SPRI_RS: { // read full status 7941 struct scsi_per_res_in_full *res_status; 7942 struct scsi_per_res_in_full_desc *res_desc; 7943 struct ctl_port *port; 7944 int i, len; 7945 7946 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7947 7948 /* 7949 * We had to drop the lock to allocate our buffer, which 7950 * leaves time for someone to come in with another 7951 * persistent reservation. (That is unlikely, though, 7952 * since this should be the only persistent reservation 7953 * command active right now.) 7954 */ 7955 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7956 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7957 lun->pr_key_count)){ 7958 mtx_unlock(&lun->lun_lock); 7959 free(ctsio->kern_data_ptr, M_CTL); 7960 printf("%s: reservation length changed, retrying\n", 7961 __func__); 7962 goto retry; 7963 } 7964 7965 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7966 7967 res_desc = &res_status->desc[0]; 7968 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7969 if (!lun->per_res[i].registered) 7970 continue; 7971 7972 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7973 sizeof(res_desc->res_key)); 7974 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7975 (lun->pr_res_idx == i || 7976 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7977 res_desc->flags = SPRI_FULL_R_HOLDER; 7978 res_desc->scopetype = lun->res_type; 7979 } 7980 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7981 res_desc->rel_trgt_port_id); 7982 len = 0; 7983 port = softc->ctl_ports[ 7984 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7985 if (port != NULL) 7986 len = ctl_create_iid(port, 7987 i % CTL_MAX_INIT_PER_PORT, 7988 res_desc->transport_id); 7989 scsi_ulto4b(len, res_desc->additional_length); 7990 res_desc = (struct scsi_per_res_in_full_desc *) 7991 &res_desc->transport_id[len]; 7992 } 7993 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7994 res_status->header.length); 7995 break; 7996 } 7997 default: 7998 /* 7999 * This is a bug, because we just checked for this above, 8000 * and should have returned an error. 8001 */ 8002 panic("Invalid PR type %x", cdb->action); 8003 break; /* NOTREACHED */ 8004 } 8005 mtx_unlock(&lun->lun_lock); 8006 8007 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8008 ctsio->be_move_done = ctl_config_move_done; 8009 8010 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8011 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8012 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8013 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8014 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8015 8016 ctl_datamove((union ctl_io *)ctsio); 8017 8018 return (CTL_RETVAL_COMPLETE); 8019} 8020 8021/* 8022 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8023 * it should return. 8024 */ 8025static int 8026ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8027 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8028 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8029 struct scsi_per_res_out_parms* param) 8030{ 8031 union ctl_ha_msg persis_io; 8032 int retval, i; 8033 int isc_retval; 8034 8035 retval = 0; 8036 8037 mtx_lock(&lun->lun_lock); 8038 if (sa_res_key == 0) { 8039 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8040 /* validate scope and type */ 8041 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8042 SPR_LU_SCOPE) { 8043 mtx_unlock(&lun->lun_lock); 8044 ctl_set_invalid_field(/*ctsio*/ ctsio, 8045 /*sks_valid*/ 1, 8046 /*command*/ 1, 8047 /*field*/ 2, 8048 /*bit_valid*/ 1, 8049 /*bit*/ 4); 8050 ctl_done((union ctl_io *)ctsio); 8051 return (1); 8052 } 8053 8054 if (type>8 || type==2 || type==4 || type==0) { 8055 mtx_unlock(&lun->lun_lock); 8056 ctl_set_invalid_field(/*ctsio*/ ctsio, 8057 /*sks_valid*/ 1, 8058 /*command*/ 1, 8059 /*field*/ 2, 8060 /*bit_valid*/ 1, 8061 /*bit*/ 0); 8062 ctl_done((union ctl_io *)ctsio); 8063 return (1); 8064 } 8065 8066 /* temporarily unregister this nexus */ 8067 lun->per_res[residx].registered = 0; 8068 8069 /* 8070 * Unregister everybody else and build UA for 8071 * them 8072 */ 8073 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8074 if (lun->per_res[i].registered == 0) 8075 continue; 8076 8077 if (!persis_offset 8078 && i <CTL_MAX_INITIATORS) 8079 lun->pending_ua[i] |= 8080 CTL_UA_REG_PREEMPT; 8081 else if (persis_offset 8082 && i >= persis_offset) 8083 lun->pending_ua[i-persis_offset] |= 8084 CTL_UA_REG_PREEMPT; 8085 lun->per_res[i].registered = 0; 8086 memset(&lun->per_res[i].res_key, 0, 8087 sizeof(struct scsi_per_res_key)); 8088 } 8089 lun->per_res[residx].registered = 1; 8090 lun->pr_key_count = 1; 8091 lun->res_type = type; 8092 if (lun->res_type != SPR_TYPE_WR_EX_AR 8093 && lun->res_type != SPR_TYPE_EX_AC_AR) 8094 lun->pr_res_idx = residx; 8095 8096 /* send msg to other side */ 8097 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8098 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8099 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8100 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8101 persis_io.pr.pr_info.res_type = type; 8102 memcpy(persis_io.pr.pr_info.sa_res_key, 8103 param->serv_act_res_key, 8104 sizeof(param->serv_act_res_key)); 8105 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8106 &persis_io, sizeof(persis_io), 0)) > 8107 CTL_HA_STATUS_SUCCESS) { 8108 printf("CTL:Persis Out error returned " 8109 "from ctl_ha_msg_send %d\n", 8110 isc_retval); 8111 } 8112 } else { 8113 /* not all registrants */ 8114 mtx_unlock(&lun->lun_lock); 8115 free(ctsio->kern_data_ptr, M_CTL); 8116 ctl_set_invalid_field(ctsio, 8117 /*sks_valid*/ 1, 8118 /*command*/ 0, 8119 /*field*/ 8, 8120 /*bit_valid*/ 0, 8121 /*bit*/ 0); 8122 ctl_done((union ctl_io *)ctsio); 8123 return (1); 8124 } 8125 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8126 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8127 int found = 0; 8128 8129 if (res_key == sa_res_key) { 8130 /* special case */ 8131 /* 8132 * The spec implies this is not good but doesn't 8133 * say what to do. There are two choices either 8134 * generate a res conflict or check condition 8135 * with illegal field in parameter data. Since 8136 * that is what is done when the sa_res_key is 8137 * zero I'll take that approach since this has 8138 * to do with the sa_res_key. 8139 */ 8140 mtx_unlock(&lun->lun_lock); 8141 free(ctsio->kern_data_ptr, M_CTL); 8142 ctl_set_invalid_field(ctsio, 8143 /*sks_valid*/ 1, 8144 /*command*/ 0, 8145 /*field*/ 8, 8146 /*bit_valid*/ 0, 8147 /*bit*/ 0); 8148 ctl_done((union ctl_io *)ctsio); 8149 return (1); 8150 } 8151 8152 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8153 if (lun->per_res[i].registered 8154 && memcmp(param->serv_act_res_key, 8155 lun->per_res[i].res_key.key, 8156 sizeof(struct scsi_per_res_key)) != 0) 8157 continue; 8158 8159 found = 1; 8160 lun->per_res[i].registered = 0; 8161 memset(&lun->per_res[i].res_key, 0, 8162 sizeof(struct scsi_per_res_key)); 8163 lun->pr_key_count--; 8164 8165 if (!persis_offset && i < CTL_MAX_INITIATORS) 8166 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8167 else if (persis_offset && i >= persis_offset) 8168 lun->pending_ua[i-persis_offset] |= 8169 CTL_UA_REG_PREEMPT; 8170 } 8171 if (!found) { 8172 mtx_unlock(&lun->lun_lock); 8173 free(ctsio->kern_data_ptr, M_CTL); 8174 ctl_set_reservation_conflict(ctsio); 8175 ctl_done((union ctl_io *)ctsio); 8176 return (CTL_RETVAL_COMPLETE); 8177 } 8178 /* send msg to other side */ 8179 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8180 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8181 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8182 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8183 persis_io.pr.pr_info.res_type = type; 8184 memcpy(persis_io.pr.pr_info.sa_res_key, 8185 param->serv_act_res_key, 8186 sizeof(param->serv_act_res_key)); 8187 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8188 &persis_io, sizeof(persis_io), 0)) > 8189 CTL_HA_STATUS_SUCCESS) { 8190 printf("CTL:Persis Out error returned from " 8191 "ctl_ha_msg_send %d\n", isc_retval); 8192 } 8193 } else { 8194 /* Reserved but not all registrants */ 8195 /* sa_res_key is res holder */ 8196 if (memcmp(param->serv_act_res_key, 8197 lun->per_res[lun->pr_res_idx].res_key.key, 8198 sizeof(struct scsi_per_res_key)) == 0) { 8199 /* validate scope and type */ 8200 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8201 SPR_LU_SCOPE) { 8202 mtx_unlock(&lun->lun_lock); 8203 ctl_set_invalid_field(/*ctsio*/ ctsio, 8204 /*sks_valid*/ 1, 8205 /*command*/ 1, 8206 /*field*/ 2, 8207 /*bit_valid*/ 1, 8208 /*bit*/ 4); 8209 ctl_done((union ctl_io *)ctsio); 8210 return (1); 8211 } 8212 8213 if (type>8 || type==2 || type==4 || type==0) { 8214 mtx_unlock(&lun->lun_lock); 8215 ctl_set_invalid_field(/*ctsio*/ ctsio, 8216 /*sks_valid*/ 1, 8217 /*command*/ 1, 8218 /*field*/ 2, 8219 /*bit_valid*/ 1, 8220 /*bit*/ 0); 8221 ctl_done((union ctl_io *)ctsio); 8222 return (1); 8223 } 8224 8225 /* 8226 * Do the following: 8227 * if sa_res_key != res_key remove all 8228 * registrants w/sa_res_key and generate UA 8229 * for these registrants(Registrations 8230 * Preempted) if it wasn't an exclusive 8231 * reservation generate UA(Reservations 8232 * Preempted) for all other registered nexuses 8233 * if the type has changed. Establish the new 8234 * reservation and holder. If res_key and 8235 * sa_res_key are the same do the above 8236 * except don't unregister the res holder. 8237 */ 8238 8239 /* 8240 * Temporarily unregister so it won't get 8241 * removed or UA generated 8242 */ 8243 lun->per_res[residx].registered = 0; 8244 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8245 if (lun->per_res[i].registered == 0) 8246 continue; 8247 8248 if (memcmp(param->serv_act_res_key, 8249 lun->per_res[i].res_key.key, 8250 sizeof(struct scsi_per_res_key)) == 0) { 8251 lun->per_res[i].registered = 0; 8252 memset(&lun->per_res[i].res_key, 8253 0, 8254 sizeof(struct scsi_per_res_key)); 8255 lun->pr_key_count--; 8256 8257 if (!persis_offset 8258 && i < CTL_MAX_INITIATORS) 8259 lun->pending_ua[i] |= 8260 CTL_UA_REG_PREEMPT; 8261 else if (persis_offset 8262 && i >= persis_offset) 8263 lun->pending_ua[i-persis_offset] |= 8264 CTL_UA_REG_PREEMPT; 8265 } else if (type != lun->res_type 8266 && (lun->res_type == SPR_TYPE_WR_EX_RO 8267 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8268 if (!persis_offset 8269 && i < CTL_MAX_INITIATORS) 8270 lun->pending_ua[i] |= 8271 CTL_UA_RES_RELEASE; 8272 else if (persis_offset 8273 && i >= persis_offset) 8274 lun->pending_ua[ 8275 i-persis_offset] |= 8276 CTL_UA_RES_RELEASE; 8277 } 8278 } 8279 lun->per_res[residx].registered = 1; 8280 lun->res_type = type; 8281 if (lun->res_type != SPR_TYPE_WR_EX_AR 8282 && lun->res_type != SPR_TYPE_EX_AC_AR) 8283 lun->pr_res_idx = residx; 8284 else 8285 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8286 8287 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8288 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8289 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8290 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8291 persis_io.pr.pr_info.res_type = type; 8292 memcpy(persis_io.pr.pr_info.sa_res_key, 8293 param->serv_act_res_key, 8294 sizeof(param->serv_act_res_key)); 8295 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8296 &persis_io, sizeof(persis_io), 0)) > 8297 CTL_HA_STATUS_SUCCESS) { 8298 printf("CTL:Persis Out error returned " 8299 "from ctl_ha_msg_send %d\n", 8300 isc_retval); 8301 } 8302 } else { 8303 /* 8304 * sa_res_key is not the res holder just 8305 * remove registrants 8306 */ 8307 int found=0; 8308 8309 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8310 if (memcmp(param->serv_act_res_key, 8311 lun->per_res[i].res_key.key, 8312 sizeof(struct scsi_per_res_key)) != 0) 8313 continue; 8314 8315 found = 1; 8316 lun->per_res[i].registered = 0; 8317 memset(&lun->per_res[i].res_key, 0, 8318 sizeof(struct scsi_per_res_key)); 8319 lun->pr_key_count--; 8320 8321 if (!persis_offset 8322 && i < CTL_MAX_INITIATORS) 8323 lun->pending_ua[i] |= 8324 CTL_UA_REG_PREEMPT; 8325 else if (persis_offset 8326 && i >= persis_offset) 8327 lun->pending_ua[i-persis_offset] |= 8328 CTL_UA_REG_PREEMPT; 8329 } 8330 8331 if (!found) { 8332 mtx_unlock(&lun->lun_lock); 8333 free(ctsio->kern_data_ptr, M_CTL); 8334 ctl_set_reservation_conflict(ctsio); 8335 ctl_done((union ctl_io *)ctsio); 8336 return (1); 8337 } 8338 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8339 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8340 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8341 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8342 persis_io.pr.pr_info.res_type = type; 8343 memcpy(persis_io.pr.pr_info.sa_res_key, 8344 param->serv_act_res_key, 8345 sizeof(param->serv_act_res_key)); 8346 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8347 &persis_io, sizeof(persis_io), 0)) > 8348 CTL_HA_STATUS_SUCCESS) { 8349 printf("CTL:Persis Out error returned " 8350 "from ctl_ha_msg_send %d\n", 8351 isc_retval); 8352 } 8353 } 8354 } 8355 8356 lun->PRGeneration++; 8357 mtx_unlock(&lun->lun_lock); 8358 8359 return (retval); 8360} 8361 8362static void 8363ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8364{ 8365 int i; 8366 8367 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8368 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8369 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8370 msg->pr.pr_info.sa_res_key, 8371 sizeof(struct scsi_per_res_key)) != 0) { 8372 uint64_t sa_res_key; 8373 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8374 8375 if (sa_res_key == 0) { 8376 /* temporarily unregister this nexus */ 8377 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8378 8379 /* 8380 * Unregister everybody else and build UA for 8381 * them 8382 */ 8383 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8384 if (lun->per_res[i].registered == 0) 8385 continue; 8386 8387 if (!persis_offset 8388 && i < CTL_MAX_INITIATORS) 8389 lun->pending_ua[i] |= 8390 CTL_UA_REG_PREEMPT; 8391 else if (persis_offset && i >= persis_offset) 8392 lun->pending_ua[i - persis_offset] |= 8393 CTL_UA_REG_PREEMPT; 8394 lun->per_res[i].registered = 0; 8395 memset(&lun->per_res[i].res_key, 0, 8396 sizeof(struct scsi_per_res_key)); 8397 } 8398 8399 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8400 lun->pr_key_count = 1; 8401 lun->res_type = msg->pr.pr_info.res_type; 8402 if (lun->res_type != SPR_TYPE_WR_EX_AR 8403 && lun->res_type != SPR_TYPE_EX_AC_AR) 8404 lun->pr_res_idx = msg->pr.pr_info.residx; 8405 } else { 8406 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8407 if (memcmp(msg->pr.pr_info.sa_res_key, 8408 lun->per_res[i].res_key.key, 8409 sizeof(struct scsi_per_res_key)) != 0) 8410 continue; 8411 8412 lun->per_res[i].registered = 0; 8413 memset(&lun->per_res[i].res_key, 0, 8414 sizeof(struct scsi_per_res_key)); 8415 lun->pr_key_count--; 8416 8417 if (!persis_offset 8418 && i < persis_offset) 8419 lun->pending_ua[i] |= 8420 CTL_UA_REG_PREEMPT; 8421 else if (persis_offset 8422 && i >= persis_offset) 8423 lun->pending_ua[i - persis_offset] |= 8424 CTL_UA_REG_PREEMPT; 8425 } 8426 } 8427 } else { 8428 /* 8429 * Temporarily unregister so it won't get removed 8430 * or UA generated 8431 */ 8432 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8433 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8434 if (lun->per_res[i].registered == 0) 8435 continue; 8436 8437 if (memcmp(msg->pr.pr_info.sa_res_key, 8438 lun->per_res[i].res_key.key, 8439 sizeof(struct scsi_per_res_key)) == 0) { 8440 lun->per_res[i].registered = 0; 8441 memset(&lun->per_res[i].res_key, 0, 8442 sizeof(struct scsi_per_res_key)); 8443 lun->pr_key_count--; 8444 if (!persis_offset 8445 && i < CTL_MAX_INITIATORS) 8446 lun->pending_ua[i] |= 8447 CTL_UA_REG_PREEMPT; 8448 else if (persis_offset 8449 && i >= persis_offset) 8450 lun->pending_ua[i - persis_offset] |= 8451 CTL_UA_REG_PREEMPT; 8452 } else if (msg->pr.pr_info.res_type != lun->res_type 8453 && (lun->res_type == SPR_TYPE_WR_EX_RO 8454 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8455 if (!persis_offset 8456 && i < persis_offset) 8457 lun->pending_ua[i] |= 8458 CTL_UA_RES_RELEASE; 8459 else if (persis_offset 8460 && i >= persis_offset) 8461 lun->pending_ua[i - persis_offset] |= 8462 CTL_UA_RES_RELEASE; 8463 } 8464 } 8465 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8466 lun->res_type = msg->pr.pr_info.res_type; 8467 if (lun->res_type != SPR_TYPE_WR_EX_AR 8468 && lun->res_type != SPR_TYPE_EX_AC_AR) 8469 lun->pr_res_idx = msg->pr.pr_info.residx; 8470 else 8471 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8472 } 8473 lun->PRGeneration++; 8474 8475} 8476 8477 8478int 8479ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8480{ 8481 int retval; 8482 int isc_retval; 8483 u_int32_t param_len; 8484 struct scsi_per_res_out *cdb; 8485 struct ctl_lun *lun; 8486 struct scsi_per_res_out_parms* param; 8487 struct ctl_softc *softc; 8488 uint32_t residx; 8489 uint64_t res_key, sa_res_key; 8490 uint8_t type; 8491 union ctl_ha_msg persis_io; 8492 int i; 8493 8494 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8495 8496 retval = CTL_RETVAL_COMPLETE; 8497 8498 softc = control_softc; 8499 8500 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8501 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8502 8503 /* 8504 * We only support whole-LUN scope. The scope & type are ignored for 8505 * register, register and ignore existing key and clear. 8506 * We sometimes ignore scope and type on preempts too!! 8507 * Verify reservation type here as well. 8508 */ 8509 type = cdb->scope_type & SPR_TYPE_MASK; 8510 if ((cdb->action == SPRO_RESERVE) 8511 || (cdb->action == SPRO_RELEASE)) { 8512 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8513 ctl_set_invalid_field(/*ctsio*/ ctsio, 8514 /*sks_valid*/ 1, 8515 /*command*/ 1, 8516 /*field*/ 2, 8517 /*bit_valid*/ 1, 8518 /*bit*/ 4); 8519 ctl_done((union ctl_io *)ctsio); 8520 return (CTL_RETVAL_COMPLETE); 8521 } 8522 8523 if (type>8 || type==2 || type==4 || type==0) { 8524 ctl_set_invalid_field(/*ctsio*/ ctsio, 8525 /*sks_valid*/ 1, 8526 /*command*/ 1, 8527 /*field*/ 2, 8528 /*bit_valid*/ 1, 8529 /*bit*/ 0); 8530 ctl_done((union ctl_io *)ctsio); 8531 return (CTL_RETVAL_COMPLETE); 8532 } 8533 } 8534 8535 param_len = scsi_4btoul(cdb->length); 8536 8537 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8538 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8539 ctsio->kern_data_len = param_len; 8540 ctsio->kern_total_len = param_len; 8541 ctsio->kern_data_resid = 0; 8542 ctsio->kern_rel_offset = 0; 8543 ctsio->kern_sg_entries = 0; 8544 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8545 ctsio->be_move_done = ctl_config_move_done; 8546 ctl_datamove((union ctl_io *)ctsio); 8547 8548 return (CTL_RETVAL_COMPLETE); 8549 } 8550 8551 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8552 8553 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8554 res_key = scsi_8btou64(param->res_key.key); 8555 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8556 8557 /* 8558 * Validate the reservation key here except for SPRO_REG_IGNO 8559 * This must be done for all other service actions 8560 */ 8561 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8562 mtx_lock(&lun->lun_lock); 8563 if (lun->per_res[residx].registered) { 8564 if (memcmp(param->res_key.key, 8565 lun->per_res[residx].res_key.key, 8566 ctl_min(sizeof(param->res_key), 8567 sizeof(lun->per_res[residx].res_key))) != 0) { 8568 /* 8569 * The current key passed in doesn't match 8570 * the one the initiator previously 8571 * registered. 8572 */ 8573 mtx_unlock(&lun->lun_lock); 8574 free(ctsio->kern_data_ptr, M_CTL); 8575 ctl_set_reservation_conflict(ctsio); 8576 ctl_done((union ctl_io *)ctsio); 8577 return (CTL_RETVAL_COMPLETE); 8578 } 8579 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8580 /* 8581 * We are not registered 8582 */ 8583 mtx_unlock(&lun->lun_lock); 8584 free(ctsio->kern_data_ptr, M_CTL); 8585 ctl_set_reservation_conflict(ctsio); 8586 ctl_done((union ctl_io *)ctsio); 8587 return (CTL_RETVAL_COMPLETE); 8588 } else if (res_key != 0) { 8589 /* 8590 * We are not registered and trying to register but 8591 * the register key isn't zero. 8592 */ 8593 mtx_unlock(&lun->lun_lock); 8594 free(ctsio->kern_data_ptr, M_CTL); 8595 ctl_set_reservation_conflict(ctsio); 8596 ctl_done((union ctl_io *)ctsio); 8597 return (CTL_RETVAL_COMPLETE); 8598 } 8599 mtx_unlock(&lun->lun_lock); 8600 } 8601 8602 switch (cdb->action & SPRO_ACTION_MASK) { 8603 case SPRO_REGISTER: 8604 case SPRO_REG_IGNO: { 8605 8606#if 0 8607 printf("Registration received\n"); 8608#endif 8609 8610 /* 8611 * We don't support any of these options, as we report in 8612 * the read capabilities request (see 8613 * ctl_persistent_reserve_in(), above). 8614 */ 8615 if ((param->flags & SPR_SPEC_I_PT) 8616 || (param->flags & SPR_ALL_TG_PT) 8617 || (param->flags & SPR_APTPL)) { 8618 int bit_ptr; 8619 8620 if (param->flags & SPR_APTPL) 8621 bit_ptr = 0; 8622 else if (param->flags & SPR_ALL_TG_PT) 8623 bit_ptr = 2; 8624 else /* SPR_SPEC_I_PT */ 8625 bit_ptr = 3; 8626 8627 free(ctsio->kern_data_ptr, M_CTL); 8628 ctl_set_invalid_field(ctsio, 8629 /*sks_valid*/ 1, 8630 /*command*/ 0, 8631 /*field*/ 20, 8632 /*bit_valid*/ 1, 8633 /*bit*/ bit_ptr); 8634 ctl_done((union ctl_io *)ctsio); 8635 return (CTL_RETVAL_COMPLETE); 8636 } 8637 8638 mtx_lock(&lun->lun_lock); 8639 8640 /* 8641 * The initiator wants to clear the 8642 * key/unregister. 8643 */ 8644 if (sa_res_key == 0) { 8645 if ((res_key == 0 8646 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8647 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8648 && !lun->per_res[residx].registered)) { 8649 mtx_unlock(&lun->lun_lock); 8650 goto done; 8651 } 8652 8653 lun->per_res[residx].registered = 0; 8654 memset(&lun->per_res[residx].res_key, 8655 0, sizeof(lun->per_res[residx].res_key)); 8656 lun->pr_key_count--; 8657 8658 if (residx == lun->pr_res_idx) { 8659 lun->flags &= ~CTL_LUN_PR_RESERVED; 8660 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8661 8662 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8663 || lun->res_type == SPR_TYPE_EX_AC_RO) 8664 && lun->pr_key_count) { 8665 /* 8666 * If the reservation is a registrants 8667 * only type we need to generate a UA 8668 * for other registered inits. The 8669 * sense code should be RESERVATIONS 8670 * RELEASED 8671 */ 8672 8673 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8674 if (lun->per_res[ 8675 i+persis_offset].registered 8676 == 0) 8677 continue; 8678 lun->pending_ua[i] |= 8679 CTL_UA_RES_RELEASE; 8680 } 8681 } 8682 lun->res_type = 0; 8683 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8684 if (lun->pr_key_count==0) { 8685 lun->flags &= ~CTL_LUN_PR_RESERVED; 8686 lun->res_type = 0; 8687 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8688 } 8689 } 8690 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8691 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8692 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8693 persis_io.pr.pr_info.residx = residx; 8694 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8695 &persis_io, sizeof(persis_io), 0 )) > 8696 CTL_HA_STATUS_SUCCESS) { 8697 printf("CTL:Persis Out error returned from " 8698 "ctl_ha_msg_send %d\n", isc_retval); 8699 } 8700 } else /* sa_res_key != 0 */ { 8701 8702 /* 8703 * If we aren't registered currently then increment 8704 * the key count and set the registered flag. 8705 */ 8706 if (!lun->per_res[residx].registered) { 8707 lun->pr_key_count++; 8708 lun->per_res[residx].registered = 1; 8709 } 8710 8711 memcpy(&lun->per_res[residx].res_key, 8712 param->serv_act_res_key, 8713 ctl_min(sizeof(param->serv_act_res_key), 8714 sizeof(lun->per_res[residx].res_key))); 8715 8716 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8717 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8718 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8719 persis_io.pr.pr_info.residx = residx; 8720 memcpy(persis_io.pr.pr_info.sa_res_key, 8721 param->serv_act_res_key, 8722 sizeof(param->serv_act_res_key)); 8723 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8724 &persis_io, sizeof(persis_io), 0)) > 8725 CTL_HA_STATUS_SUCCESS) { 8726 printf("CTL:Persis Out error returned from " 8727 "ctl_ha_msg_send %d\n", isc_retval); 8728 } 8729 } 8730 lun->PRGeneration++; 8731 mtx_unlock(&lun->lun_lock); 8732 8733 break; 8734 } 8735 case SPRO_RESERVE: 8736#if 0 8737 printf("Reserve executed type %d\n", type); 8738#endif 8739 mtx_lock(&lun->lun_lock); 8740 if (lun->flags & CTL_LUN_PR_RESERVED) { 8741 /* 8742 * if this isn't the reservation holder and it's 8743 * not a "all registrants" type or if the type is 8744 * different then we have a conflict 8745 */ 8746 if ((lun->pr_res_idx != residx 8747 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8748 || lun->res_type != type) { 8749 mtx_unlock(&lun->lun_lock); 8750 free(ctsio->kern_data_ptr, M_CTL); 8751 ctl_set_reservation_conflict(ctsio); 8752 ctl_done((union ctl_io *)ctsio); 8753 return (CTL_RETVAL_COMPLETE); 8754 } 8755 mtx_unlock(&lun->lun_lock); 8756 } else /* create a reservation */ { 8757 /* 8758 * If it's not an "all registrants" type record 8759 * reservation holder 8760 */ 8761 if (type != SPR_TYPE_WR_EX_AR 8762 && type != SPR_TYPE_EX_AC_AR) 8763 lun->pr_res_idx = residx; /* Res holder */ 8764 else 8765 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8766 8767 lun->flags |= CTL_LUN_PR_RESERVED; 8768 lun->res_type = type; 8769 8770 mtx_unlock(&lun->lun_lock); 8771 8772 /* send msg to other side */ 8773 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8774 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8775 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8776 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8777 persis_io.pr.pr_info.res_type = type; 8778 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8779 &persis_io, sizeof(persis_io), 0)) > 8780 CTL_HA_STATUS_SUCCESS) { 8781 printf("CTL:Persis Out error returned from " 8782 "ctl_ha_msg_send %d\n", isc_retval); 8783 } 8784 } 8785 break; 8786 8787 case SPRO_RELEASE: 8788 mtx_lock(&lun->lun_lock); 8789 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8790 /* No reservation exists return good status */ 8791 mtx_unlock(&lun->lun_lock); 8792 goto done; 8793 } 8794 /* 8795 * Is this nexus a reservation holder? 8796 */ 8797 if (lun->pr_res_idx != residx 8798 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8799 /* 8800 * not a res holder return good status but 8801 * do nothing 8802 */ 8803 mtx_unlock(&lun->lun_lock); 8804 goto done; 8805 } 8806 8807 if (lun->res_type != type) { 8808 mtx_unlock(&lun->lun_lock); 8809 free(ctsio->kern_data_ptr, M_CTL); 8810 ctl_set_illegal_pr_release(ctsio); 8811 ctl_done((union ctl_io *)ctsio); 8812 return (CTL_RETVAL_COMPLETE); 8813 } 8814 8815 /* okay to release */ 8816 lun->flags &= ~CTL_LUN_PR_RESERVED; 8817 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8818 lun->res_type = 0; 8819 8820 /* 8821 * if this isn't an exclusive access 8822 * res generate UA for all other 8823 * registrants. 8824 */ 8825 if (type != SPR_TYPE_EX_AC 8826 && type != SPR_TYPE_WR_EX) { 8827 /* 8828 * temporarily unregister so we don't generate UA 8829 */ 8830 lun->per_res[residx].registered = 0; 8831 8832 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8833 if (lun->per_res[i+persis_offset].registered 8834 == 0) 8835 continue; 8836 lun->pending_ua[i] |= 8837 CTL_UA_RES_RELEASE; 8838 } 8839 8840 lun->per_res[residx].registered = 1; 8841 } 8842 mtx_unlock(&lun->lun_lock); 8843 /* Send msg to other side */ 8844 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8845 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8846 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8847 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8848 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8849 printf("CTL:Persis Out error returned from " 8850 "ctl_ha_msg_send %d\n", isc_retval); 8851 } 8852 break; 8853 8854 case SPRO_CLEAR: 8855 /* send msg to other side */ 8856 8857 mtx_lock(&lun->lun_lock); 8858 lun->flags &= ~CTL_LUN_PR_RESERVED; 8859 lun->res_type = 0; 8860 lun->pr_key_count = 0; 8861 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8862 8863 8864 memset(&lun->per_res[residx].res_key, 8865 0, sizeof(lun->per_res[residx].res_key)); 8866 lun->per_res[residx].registered = 0; 8867 8868 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8869 if (lun->per_res[i].registered) { 8870 if (!persis_offset && i < CTL_MAX_INITIATORS) 8871 lun->pending_ua[i] |= 8872 CTL_UA_RES_PREEMPT; 8873 else if (persis_offset && i >= persis_offset) 8874 lun->pending_ua[i-persis_offset] |= 8875 CTL_UA_RES_PREEMPT; 8876 8877 memset(&lun->per_res[i].res_key, 8878 0, sizeof(struct scsi_per_res_key)); 8879 lun->per_res[i].registered = 0; 8880 } 8881 lun->PRGeneration++; 8882 mtx_unlock(&lun->lun_lock); 8883 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8884 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8885 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8886 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8887 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8888 printf("CTL:Persis Out error returned from " 8889 "ctl_ha_msg_send %d\n", isc_retval); 8890 } 8891 break; 8892 8893 case SPRO_PREEMPT: { 8894 int nretval; 8895 8896 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8897 residx, ctsio, cdb, param); 8898 if (nretval != 0) 8899 return (CTL_RETVAL_COMPLETE); 8900 break; 8901 } 8902 default: 8903 panic("Invalid PR type %x", cdb->action); 8904 } 8905 8906done: 8907 free(ctsio->kern_data_ptr, M_CTL); 8908 ctl_set_success(ctsio); 8909 ctl_done((union ctl_io *)ctsio); 8910 8911 return (retval); 8912} 8913 8914/* 8915 * This routine is for handling a message from the other SC pertaining to 8916 * persistent reserve out. All the error checking will have been done 8917 * so only perorming the action need be done here to keep the two 8918 * in sync. 8919 */ 8920static void 8921ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8922{ 8923 struct ctl_lun *lun; 8924 struct ctl_softc *softc; 8925 int i; 8926 uint32_t targ_lun; 8927 8928 softc = control_softc; 8929 8930 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8931 lun = softc->ctl_luns[targ_lun]; 8932 mtx_lock(&lun->lun_lock); 8933 switch(msg->pr.pr_info.action) { 8934 case CTL_PR_REG_KEY: 8935 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8936 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8937 lun->pr_key_count++; 8938 } 8939 lun->PRGeneration++; 8940 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8941 msg->pr.pr_info.sa_res_key, 8942 sizeof(struct scsi_per_res_key)); 8943 break; 8944 8945 case CTL_PR_UNREG_KEY: 8946 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8947 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8948 0, sizeof(struct scsi_per_res_key)); 8949 lun->pr_key_count--; 8950 8951 /* XXX Need to see if the reservation has been released */ 8952 /* if so do we need to generate UA? */ 8953 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8954 lun->flags &= ~CTL_LUN_PR_RESERVED; 8955 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8956 8957 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8958 || lun->res_type == SPR_TYPE_EX_AC_RO) 8959 && lun->pr_key_count) { 8960 /* 8961 * If the reservation is a registrants 8962 * only type we need to generate a UA 8963 * for other registered inits. The 8964 * sense code should be RESERVATIONS 8965 * RELEASED 8966 */ 8967 8968 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8969 if (lun->per_res[i+ 8970 persis_offset].registered == 0) 8971 continue; 8972 8973 lun->pending_ua[i] |= 8974 CTL_UA_RES_RELEASE; 8975 } 8976 } 8977 lun->res_type = 0; 8978 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8979 if (lun->pr_key_count==0) { 8980 lun->flags &= ~CTL_LUN_PR_RESERVED; 8981 lun->res_type = 0; 8982 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8983 } 8984 } 8985 lun->PRGeneration++; 8986 break; 8987 8988 case CTL_PR_RESERVE: 8989 lun->flags |= CTL_LUN_PR_RESERVED; 8990 lun->res_type = msg->pr.pr_info.res_type; 8991 lun->pr_res_idx = msg->pr.pr_info.residx; 8992 8993 break; 8994 8995 case CTL_PR_RELEASE: 8996 /* 8997 * if this isn't an exclusive access res generate UA for all 8998 * other registrants. 8999 */ 9000 if (lun->res_type != SPR_TYPE_EX_AC 9001 && lun->res_type != SPR_TYPE_WR_EX) { 9002 for (i = 0; i < CTL_MAX_INITIATORS; i++) 9003 if (lun->per_res[i+persis_offset].registered) 9004 lun->pending_ua[i] |= 9005 CTL_UA_RES_RELEASE; 9006 } 9007 9008 lun->flags &= ~CTL_LUN_PR_RESERVED; 9009 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9010 lun->res_type = 0; 9011 break; 9012 9013 case CTL_PR_PREEMPT: 9014 ctl_pro_preempt_other(lun, msg); 9015 break; 9016 case CTL_PR_CLEAR: 9017 lun->flags &= ~CTL_LUN_PR_RESERVED; 9018 lun->res_type = 0; 9019 lun->pr_key_count = 0; 9020 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9021 9022 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9023 if (lun->per_res[i].registered == 0) 9024 continue; 9025 if (!persis_offset 9026 && i < CTL_MAX_INITIATORS) 9027 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 9028 else if (persis_offset 9029 && i >= persis_offset) 9030 lun->pending_ua[i-persis_offset] |= 9031 CTL_UA_RES_PREEMPT; 9032 memset(&lun->per_res[i].res_key, 0, 9033 sizeof(struct scsi_per_res_key)); 9034 lun->per_res[i].registered = 0; 9035 } 9036 lun->PRGeneration++; 9037 break; 9038 } 9039 9040 mtx_unlock(&lun->lun_lock); 9041} 9042 9043int 9044ctl_read_write(struct ctl_scsiio *ctsio) 9045{ 9046 struct ctl_lun *lun; 9047 struct ctl_lba_len_flags *lbalen; 9048 uint64_t lba; 9049 uint32_t num_blocks; 9050 int flags, retval; 9051 int isread; 9052 9053 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9054 9055 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9056 9057 flags = 0; 9058 retval = CTL_RETVAL_COMPLETE; 9059 9060 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9061 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9062 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9063 uint32_t residx; 9064 9065 /* 9066 * XXX KDM need a lock here. 9067 */ 9068 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9069 if ((lun->res_type == SPR_TYPE_EX_AC 9070 && residx != lun->pr_res_idx) 9071 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9072 || lun->res_type == SPR_TYPE_EX_AC_AR) 9073 && !lun->per_res[residx].registered)) { 9074 ctl_set_reservation_conflict(ctsio); 9075 ctl_done((union ctl_io *)ctsio); 9076 return (CTL_RETVAL_COMPLETE); 9077 } 9078 } 9079 9080 switch (ctsio->cdb[0]) { 9081 case READ_6: 9082 case WRITE_6: { 9083 struct scsi_rw_6 *cdb; 9084 9085 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9086 9087 lba = scsi_3btoul(cdb->addr); 9088 /* only 5 bits are valid in the most significant address byte */ 9089 lba &= 0x1fffff; 9090 num_blocks = cdb->length; 9091 /* 9092 * This is correct according to SBC-2. 9093 */ 9094 if (num_blocks == 0) 9095 num_blocks = 256; 9096 break; 9097 } 9098 case READ_10: 9099 case WRITE_10: { 9100 struct scsi_rw_10 *cdb; 9101 9102 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9103 if (cdb->byte2 & SRW10_FUA) 9104 flags |= CTL_LLF_FUA; 9105 if (cdb->byte2 & SRW10_DPO) 9106 flags |= CTL_LLF_DPO; 9107 lba = scsi_4btoul(cdb->addr); 9108 num_blocks = scsi_2btoul(cdb->length); 9109 break; 9110 } 9111 case WRITE_VERIFY_10: { 9112 struct scsi_write_verify_10 *cdb; 9113 9114 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9115 flags |= CTL_LLF_FUA; 9116 if (cdb->byte2 & SWV_DPO) 9117 flags |= CTL_LLF_DPO; 9118 lba = scsi_4btoul(cdb->addr); 9119 num_blocks = scsi_2btoul(cdb->length); 9120 break; 9121 } 9122 case READ_12: 9123 case WRITE_12: { 9124 struct scsi_rw_12 *cdb; 9125 9126 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9127 if (cdb->byte2 & SRW12_FUA) 9128 flags |= CTL_LLF_FUA; 9129 if (cdb->byte2 & SRW12_DPO) 9130 flags |= CTL_LLF_DPO; 9131 lba = scsi_4btoul(cdb->addr); 9132 num_blocks = scsi_4btoul(cdb->length); 9133 break; 9134 } 9135 case WRITE_VERIFY_12: { 9136 struct scsi_write_verify_12 *cdb; 9137 9138 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9139 flags |= CTL_LLF_FUA; 9140 if (cdb->byte2 & SWV_DPO) 9141 flags |= CTL_LLF_DPO; 9142 lba = scsi_4btoul(cdb->addr); 9143 num_blocks = scsi_4btoul(cdb->length); 9144 break; 9145 } 9146 case READ_16: 9147 case WRITE_16: { 9148 struct scsi_rw_16 *cdb; 9149 9150 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9151 if (cdb->byte2 & SRW12_FUA) 9152 flags |= CTL_LLF_FUA; 9153 if (cdb->byte2 & SRW12_DPO) 9154 flags |= CTL_LLF_DPO; 9155 lba = scsi_8btou64(cdb->addr); 9156 num_blocks = scsi_4btoul(cdb->length); 9157 break; 9158 } 9159 case WRITE_VERIFY_16: { 9160 struct scsi_write_verify_16 *cdb; 9161 9162 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9163 flags |= CTL_LLF_FUA; 9164 if (cdb->byte2 & SWV_DPO) 9165 flags |= CTL_LLF_DPO; 9166 lba = scsi_8btou64(cdb->addr); 9167 num_blocks = scsi_4btoul(cdb->length); 9168 break; 9169 } 9170 default: 9171 /* 9172 * We got a command we don't support. This shouldn't 9173 * happen, commands should be filtered out above us. 9174 */ 9175 ctl_set_invalid_opcode(ctsio); 9176 ctl_done((union ctl_io *)ctsio); 9177 9178 return (CTL_RETVAL_COMPLETE); 9179 break; /* NOTREACHED */ 9180 } 9181 9182 /* 9183 * The first check is to make sure we're in bounds, the second 9184 * check is to catch wrap-around problems. If the lba + num blocks 9185 * is less than the lba, then we've wrapped around and the block 9186 * range is invalid anyway. 9187 */ 9188 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9189 || ((lba + num_blocks) < lba)) { 9190 ctl_set_lba_out_of_range(ctsio); 9191 ctl_done((union ctl_io *)ctsio); 9192 return (CTL_RETVAL_COMPLETE); 9193 } 9194 9195 /* 9196 * According to SBC-3, a transfer length of 0 is not an error. 9197 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9198 * translates to 256 blocks for those commands. 9199 */ 9200 if (num_blocks == 0) { 9201 ctl_set_success(ctsio); 9202 ctl_done((union ctl_io *)ctsio); 9203 return (CTL_RETVAL_COMPLETE); 9204 } 9205 9206 /* Set FUA and/or DPO if caches are disabled. */ 9207 if (isread) { 9208 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9209 SCP_RCD) != 0) 9210 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9211 } else { 9212 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9213 SCP_WCE) == 0) 9214 flags |= CTL_LLF_FUA; 9215 } 9216 9217 lbalen = (struct ctl_lba_len_flags *) 9218 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9219 lbalen->lba = lba; 9220 lbalen->len = num_blocks; 9221 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9222 9223 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9224 ctsio->kern_rel_offset = 0; 9225 9226 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9227 9228 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9229 9230 return (retval); 9231} 9232 9233static int 9234ctl_cnw_cont(union ctl_io *io) 9235{ 9236 struct ctl_scsiio *ctsio; 9237 struct ctl_lun *lun; 9238 struct ctl_lba_len_flags *lbalen; 9239 int retval; 9240 9241 ctsio = &io->scsiio; 9242 ctsio->io_hdr.status = CTL_STATUS_NONE; 9243 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9244 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9245 lbalen = (struct ctl_lba_len_flags *) 9246 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9247 lbalen->flags &= ~CTL_LLF_COMPARE; 9248 lbalen->flags |= CTL_LLF_WRITE; 9249 9250 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9251 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9252 return (retval); 9253} 9254 9255int 9256ctl_cnw(struct ctl_scsiio *ctsio) 9257{ 9258 struct ctl_lun *lun; 9259 struct ctl_lba_len_flags *lbalen; 9260 uint64_t lba; 9261 uint32_t num_blocks; 9262 int flags, retval; 9263 9264 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9265 9266 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9267 9268 flags = 0; 9269 retval = CTL_RETVAL_COMPLETE; 9270 9271 switch (ctsio->cdb[0]) { 9272 case COMPARE_AND_WRITE: { 9273 struct scsi_compare_and_write *cdb; 9274 9275 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9276 if (cdb->byte2 & SRW10_FUA) 9277 flags |= CTL_LLF_FUA; 9278 if (cdb->byte2 & SRW10_DPO) 9279 flags |= CTL_LLF_DPO; 9280 lba = scsi_8btou64(cdb->addr); 9281 num_blocks = cdb->length; 9282 break; 9283 } 9284 default: 9285 /* 9286 * We got a command we don't support. This shouldn't 9287 * happen, commands should be filtered out above us. 9288 */ 9289 ctl_set_invalid_opcode(ctsio); 9290 ctl_done((union ctl_io *)ctsio); 9291 9292 return (CTL_RETVAL_COMPLETE); 9293 break; /* NOTREACHED */ 9294 } 9295 9296 /* 9297 * The first check is to make sure we're in bounds, the second 9298 * check is to catch wrap-around problems. If the lba + num blocks 9299 * is less than the lba, then we've wrapped around and the block 9300 * range is invalid anyway. 9301 */ 9302 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9303 || ((lba + num_blocks) < lba)) { 9304 ctl_set_lba_out_of_range(ctsio); 9305 ctl_done((union ctl_io *)ctsio); 9306 return (CTL_RETVAL_COMPLETE); 9307 } 9308 9309 /* 9310 * According to SBC-3, a transfer length of 0 is not an error. 9311 */ 9312 if (num_blocks == 0) { 9313 ctl_set_success(ctsio); 9314 ctl_done((union ctl_io *)ctsio); 9315 return (CTL_RETVAL_COMPLETE); 9316 } 9317 9318 /* Set FUA if write cache is disabled. */ 9319 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9320 SCP_WCE) == 0) 9321 flags |= CTL_LLF_FUA; 9322 9323 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9324 ctsio->kern_rel_offset = 0; 9325 9326 /* 9327 * Set the IO_CONT flag, so that if this I/O gets passed to 9328 * ctl_data_submit_done(), it'll get passed back to 9329 * ctl_ctl_cnw_cont() for further processing. 9330 */ 9331 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9332 ctsio->io_cont = ctl_cnw_cont; 9333 9334 lbalen = (struct ctl_lba_len_flags *) 9335 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9336 lbalen->lba = lba; 9337 lbalen->len = num_blocks; 9338 lbalen->flags = CTL_LLF_COMPARE | flags; 9339 9340 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9341 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9342 return (retval); 9343} 9344 9345int 9346ctl_verify(struct ctl_scsiio *ctsio) 9347{ 9348 struct ctl_lun *lun; 9349 struct ctl_lba_len_flags *lbalen; 9350 uint64_t lba; 9351 uint32_t num_blocks; 9352 int bytchk, flags; 9353 int retval; 9354 9355 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9356 9357 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9358 9359 bytchk = 0; 9360 flags = CTL_LLF_FUA; 9361 retval = CTL_RETVAL_COMPLETE; 9362 9363 switch (ctsio->cdb[0]) { 9364 case VERIFY_10: { 9365 struct scsi_verify_10 *cdb; 9366 9367 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9368 if (cdb->byte2 & SVFY_BYTCHK) 9369 bytchk = 1; 9370 if (cdb->byte2 & SVFY_DPO) 9371 flags |= CTL_LLF_DPO; 9372 lba = scsi_4btoul(cdb->addr); 9373 num_blocks = scsi_2btoul(cdb->length); 9374 break; 9375 } 9376 case VERIFY_12: { 9377 struct scsi_verify_12 *cdb; 9378 9379 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9380 if (cdb->byte2 & SVFY_BYTCHK) 9381 bytchk = 1; 9382 if (cdb->byte2 & SVFY_DPO) 9383 flags |= CTL_LLF_DPO; 9384 lba = scsi_4btoul(cdb->addr); 9385 num_blocks = scsi_4btoul(cdb->length); 9386 break; 9387 } 9388 case VERIFY_16: { 9389 struct scsi_rw_16 *cdb; 9390 9391 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9392 if (cdb->byte2 & SVFY_BYTCHK) 9393 bytchk = 1; 9394 if (cdb->byte2 & SVFY_DPO) 9395 flags |= CTL_LLF_DPO; 9396 lba = scsi_8btou64(cdb->addr); 9397 num_blocks = scsi_4btoul(cdb->length); 9398 break; 9399 } 9400 default: 9401 /* 9402 * We got a command we don't support. This shouldn't 9403 * happen, commands should be filtered out above us. 9404 */ 9405 ctl_set_invalid_opcode(ctsio); 9406 ctl_done((union ctl_io *)ctsio); 9407 return (CTL_RETVAL_COMPLETE); 9408 } 9409 9410 /* 9411 * The first check is to make sure we're in bounds, the second 9412 * check is to catch wrap-around problems. If the lba + num blocks 9413 * is less than the lba, then we've wrapped around and the block 9414 * range is invalid anyway. 9415 */ 9416 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9417 || ((lba + num_blocks) < lba)) { 9418 ctl_set_lba_out_of_range(ctsio); 9419 ctl_done((union ctl_io *)ctsio); 9420 return (CTL_RETVAL_COMPLETE); 9421 } 9422 9423 /* 9424 * According to SBC-3, a transfer length of 0 is not an error. 9425 */ 9426 if (num_blocks == 0) { 9427 ctl_set_success(ctsio); 9428 ctl_done((union ctl_io *)ctsio); 9429 return (CTL_RETVAL_COMPLETE); 9430 } 9431 9432 lbalen = (struct ctl_lba_len_flags *) 9433 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9434 lbalen->lba = lba; 9435 lbalen->len = num_blocks; 9436 if (bytchk) { 9437 lbalen->flags = CTL_LLF_COMPARE | flags; 9438 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9439 } else { 9440 lbalen->flags = CTL_LLF_VERIFY | flags; 9441 ctsio->kern_total_len = 0; 9442 } 9443 ctsio->kern_rel_offset = 0; 9444 9445 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9446 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9447 return (retval); 9448} 9449 9450int 9451ctl_report_luns(struct ctl_scsiio *ctsio) 9452{ 9453 struct scsi_report_luns *cdb; 9454 struct scsi_report_luns_data *lun_data; 9455 struct ctl_lun *lun, *request_lun; 9456 int num_luns, retval; 9457 uint32_t alloc_len, lun_datalen; 9458 int num_filled, well_known; 9459 uint32_t initidx, targ_lun_id, lun_id; 9460 9461 retval = CTL_RETVAL_COMPLETE; 9462 well_known = 0; 9463 9464 cdb = (struct scsi_report_luns *)ctsio->cdb; 9465 9466 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9467 9468 mtx_lock(&control_softc->ctl_lock); 9469 num_luns = control_softc->num_luns; 9470 mtx_unlock(&control_softc->ctl_lock); 9471 9472 switch (cdb->select_report) { 9473 case RPL_REPORT_DEFAULT: 9474 case RPL_REPORT_ALL: 9475 break; 9476 case RPL_REPORT_WELLKNOWN: 9477 well_known = 1; 9478 num_luns = 0; 9479 break; 9480 default: 9481 ctl_set_invalid_field(ctsio, 9482 /*sks_valid*/ 1, 9483 /*command*/ 1, 9484 /*field*/ 2, 9485 /*bit_valid*/ 0, 9486 /*bit*/ 0); 9487 ctl_done((union ctl_io *)ctsio); 9488 return (retval); 9489 break; /* NOTREACHED */ 9490 } 9491 9492 alloc_len = scsi_4btoul(cdb->length); 9493 /* 9494 * The initiator has to allocate at least 16 bytes for this request, 9495 * so he can at least get the header and the first LUN. Otherwise 9496 * we reject the request (per SPC-3 rev 14, section 6.21). 9497 */ 9498 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9499 sizeof(struct scsi_report_luns_lundata))) { 9500 ctl_set_invalid_field(ctsio, 9501 /*sks_valid*/ 1, 9502 /*command*/ 1, 9503 /*field*/ 6, 9504 /*bit_valid*/ 0, 9505 /*bit*/ 0); 9506 ctl_done((union ctl_io *)ctsio); 9507 return (retval); 9508 } 9509 9510 request_lun = (struct ctl_lun *) 9511 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9512 9513 lun_datalen = sizeof(*lun_data) + 9514 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9515 9516 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9517 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9518 ctsio->kern_sg_entries = 0; 9519 9520 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9521 9522 mtx_lock(&control_softc->ctl_lock); 9523 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9524 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9525 if (lun_id >= CTL_MAX_LUNS) 9526 continue; 9527 lun = control_softc->ctl_luns[lun_id]; 9528 if (lun == NULL) 9529 continue; 9530 9531 if (targ_lun_id <= 0xff) { 9532 /* 9533 * Peripheral addressing method, bus number 0. 9534 */ 9535 lun_data->luns[num_filled].lundata[0] = 9536 RPL_LUNDATA_ATYP_PERIPH; 9537 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9538 num_filled++; 9539 } else if (targ_lun_id <= 0x3fff) { 9540 /* 9541 * Flat addressing method. 9542 */ 9543 lun_data->luns[num_filled].lundata[0] = 9544 RPL_LUNDATA_ATYP_FLAT | 9545 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9546#ifdef OLDCTLHEADERS 9547 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9548 (targ_lun_id & SRLD_BUS_LUN_MASK); 9549#endif 9550 lun_data->luns[num_filled].lundata[1] = 9551#ifdef OLDCTLHEADERS 9552 targ_lun_id >> SRLD_BUS_LUN_BITS; 9553#endif 9554 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9555 num_filled++; 9556 } else { 9557 printf("ctl_report_luns: bogus LUN number %jd, " 9558 "skipping\n", (intmax_t)targ_lun_id); 9559 } 9560 /* 9561 * According to SPC-3, rev 14 section 6.21: 9562 * 9563 * "The execution of a REPORT LUNS command to any valid and 9564 * installed logical unit shall clear the REPORTED LUNS DATA 9565 * HAS CHANGED unit attention condition for all logical 9566 * units of that target with respect to the requesting 9567 * initiator. A valid and installed logical unit is one 9568 * having a PERIPHERAL QUALIFIER of 000b in the standard 9569 * INQUIRY data (see 6.4.2)." 9570 * 9571 * If request_lun is NULL, the LUN this report luns command 9572 * was issued to is either disabled or doesn't exist. In that 9573 * case, we shouldn't clear any pending lun change unit 9574 * attention. 9575 */ 9576 if (request_lun != NULL) { 9577 mtx_lock(&lun->lun_lock); 9578 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9579 mtx_unlock(&lun->lun_lock); 9580 } 9581 } 9582 mtx_unlock(&control_softc->ctl_lock); 9583 9584 /* 9585 * It's quite possible that we've returned fewer LUNs than we allocated 9586 * space for. Trim it. 9587 */ 9588 lun_datalen = sizeof(*lun_data) + 9589 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9590 9591 if (lun_datalen < alloc_len) { 9592 ctsio->residual = alloc_len - lun_datalen; 9593 ctsio->kern_data_len = lun_datalen; 9594 ctsio->kern_total_len = lun_datalen; 9595 } else { 9596 ctsio->residual = 0; 9597 ctsio->kern_data_len = alloc_len; 9598 ctsio->kern_total_len = alloc_len; 9599 } 9600 ctsio->kern_data_resid = 0; 9601 ctsio->kern_rel_offset = 0; 9602 ctsio->kern_sg_entries = 0; 9603 9604 /* 9605 * We set this to the actual data length, regardless of how much 9606 * space we actually have to return results. If the user looks at 9607 * this value, he'll know whether or not he allocated enough space 9608 * and reissue the command if necessary. We don't support well 9609 * known logical units, so if the user asks for that, return none. 9610 */ 9611 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9612 9613 /* 9614 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9615 * this request. 9616 */ 9617 ctsio->scsi_status = SCSI_STATUS_OK; 9618 9619 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9620 ctsio->be_move_done = ctl_config_move_done; 9621 ctl_datamove((union ctl_io *)ctsio); 9622 9623 return (retval); 9624} 9625 9626int 9627ctl_request_sense(struct ctl_scsiio *ctsio) 9628{ 9629 struct scsi_request_sense *cdb; 9630 struct scsi_sense_data *sense_ptr; 9631 struct ctl_lun *lun; 9632 uint32_t initidx; 9633 int have_error; 9634 scsi_sense_data_type sense_format; 9635 9636 cdb = (struct scsi_request_sense *)ctsio->cdb; 9637 9638 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9639 9640 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9641 9642 /* 9643 * Determine which sense format the user wants. 9644 */ 9645 if (cdb->byte2 & SRS_DESC) 9646 sense_format = SSD_TYPE_DESC; 9647 else 9648 sense_format = SSD_TYPE_FIXED; 9649 9650 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9651 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9652 ctsio->kern_sg_entries = 0; 9653 9654 /* 9655 * struct scsi_sense_data, which is currently set to 256 bytes, is 9656 * larger than the largest allowed value for the length field in the 9657 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9658 */ 9659 ctsio->residual = 0; 9660 ctsio->kern_data_len = cdb->length; 9661 ctsio->kern_total_len = cdb->length; 9662 9663 ctsio->kern_data_resid = 0; 9664 ctsio->kern_rel_offset = 0; 9665 ctsio->kern_sg_entries = 0; 9666 9667 /* 9668 * If we don't have a LUN, we don't have any pending sense. 9669 */ 9670 if (lun == NULL) 9671 goto no_sense; 9672 9673 have_error = 0; 9674 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9675 /* 9676 * Check for pending sense, and then for pending unit attentions. 9677 * Pending sense gets returned first, then pending unit attentions. 9678 */ 9679 mtx_lock(&lun->lun_lock); 9680#ifdef CTL_WITH_CA 9681 if (ctl_is_set(lun->have_ca, initidx)) { 9682 scsi_sense_data_type stored_format; 9683 9684 /* 9685 * Check to see which sense format was used for the stored 9686 * sense data. 9687 */ 9688 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9689 9690 /* 9691 * If the user requested a different sense format than the 9692 * one we stored, then we need to convert it to the other 9693 * format. If we're going from descriptor to fixed format 9694 * sense data, we may lose things in translation, depending 9695 * on what options were used. 9696 * 9697 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9698 * for some reason we'll just copy it out as-is. 9699 */ 9700 if ((stored_format == SSD_TYPE_FIXED) 9701 && (sense_format == SSD_TYPE_DESC)) 9702 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9703 &lun->pending_sense[initidx], 9704 (struct scsi_sense_data_desc *)sense_ptr); 9705 else if ((stored_format == SSD_TYPE_DESC) 9706 && (sense_format == SSD_TYPE_FIXED)) 9707 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9708 &lun->pending_sense[initidx], 9709 (struct scsi_sense_data_fixed *)sense_ptr); 9710 else 9711 memcpy(sense_ptr, &lun->pending_sense[initidx], 9712 ctl_min(sizeof(*sense_ptr), 9713 sizeof(lun->pending_sense[initidx]))); 9714 9715 ctl_clear_mask(lun->have_ca, initidx); 9716 have_error = 1; 9717 } else 9718#endif 9719 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9720 ctl_ua_type ua_type; 9721 9722 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9723 sense_ptr, sense_format); 9724 if (ua_type != CTL_UA_NONE) 9725 have_error = 1; 9726 } 9727 mtx_unlock(&lun->lun_lock); 9728 9729 /* 9730 * We already have a pending error, return it. 9731 */ 9732 if (have_error != 0) { 9733 /* 9734 * We report the SCSI status as OK, since the status of the 9735 * request sense command itself is OK. 9736 */ 9737 ctsio->scsi_status = SCSI_STATUS_OK; 9738 9739 /* 9740 * We report 0 for the sense length, because we aren't doing 9741 * autosense in this case. We're reporting sense as 9742 * parameter data. 9743 */ 9744 ctsio->sense_len = 0; 9745 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9746 ctsio->be_move_done = ctl_config_move_done; 9747 ctl_datamove((union ctl_io *)ctsio); 9748 9749 return (CTL_RETVAL_COMPLETE); 9750 } 9751 9752no_sense: 9753 9754 /* 9755 * No sense information to report, so we report that everything is 9756 * okay. 9757 */ 9758 ctl_set_sense_data(sense_ptr, 9759 lun, 9760 sense_format, 9761 /*current_error*/ 1, 9762 /*sense_key*/ SSD_KEY_NO_SENSE, 9763 /*asc*/ 0x00, 9764 /*ascq*/ 0x00, 9765 SSD_ELEM_NONE); 9766 9767 ctsio->scsi_status = SCSI_STATUS_OK; 9768 9769 /* 9770 * We report 0 for the sense length, because we aren't doing 9771 * autosense in this case. We're reporting sense as parameter data. 9772 */ 9773 ctsio->sense_len = 0; 9774 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9775 ctsio->be_move_done = ctl_config_move_done; 9776 ctl_datamove((union ctl_io *)ctsio); 9777 9778 return (CTL_RETVAL_COMPLETE); 9779} 9780 9781int 9782ctl_tur(struct ctl_scsiio *ctsio) 9783{ 9784 struct ctl_lun *lun; 9785 9786 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9787 9788 CTL_DEBUG_PRINT(("ctl_tur\n")); 9789 9790 if (lun == NULL) 9791 return (EINVAL); 9792 9793 ctsio->scsi_status = SCSI_STATUS_OK; 9794 ctsio->io_hdr.status = CTL_SUCCESS; 9795 9796 ctl_done((union ctl_io *)ctsio); 9797 9798 return (CTL_RETVAL_COMPLETE); 9799} 9800 9801#ifdef notyet 9802static int 9803ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9804{ 9805 9806} 9807#endif 9808 9809static int 9810ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9811{ 9812 struct scsi_vpd_supported_pages *pages; 9813 int sup_page_size; 9814 struct ctl_lun *lun; 9815 9816 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9817 9818 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9819 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9820 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9821 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9822 ctsio->kern_sg_entries = 0; 9823 9824 if (sup_page_size < alloc_len) { 9825 ctsio->residual = alloc_len - sup_page_size; 9826 ctsio->kern_data_len = sup_page_size; 9827 ctsio->kern_total_len = sup_page_size; 9828 } else { 9829 ctsio->residual = 0; 9830 ctsio->kern_data_len = alloc_len; 9831 ctsio->kern_total_len = alloc_len; 9832 } 9833 ctsio->kern_data_resid = 0; 9834 ctsio->kern_rel_offset = 0; 9835 ctsio->kern_sg_entries = 0; 9836 9837 /* 9838 * The control device is always connected. The disk device, on the 9839 * other hand, may not be online all the time. Need to change this 9840 * to figure out whether the disk device is actually online or not. 9841 */ 9842 if (lun != NULL) 9843 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9844 lun->be_lun->lun_type; 9845 else 9846 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9847 9848 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9849 /* Supported VPD pages */ 9850 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9851 /* Serial Number */ 9852 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9853 /* Device Identification */ 9854 pages->page_list[2] = SVPD_DEVICE_ID; 9855 /* Extended INQUIRY Data */ 9856 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9857 /* Mode Page Policy */ 9858 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9859 /* SCSI Ports */ 9860 pages->page_list[5] = SVPD_SCSI_PORTS; 9861 /* Third-party Copy */ 9862 pages->page_list[6] = SVPD_SCSI_TPC; 9863 /* Block limits */ 9864 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9865 /* Block Device Characteristics */ 9866 pages->page_list[8] = SVPD_BDC; 9867 /* Logical Block Provisioning */ 9868 pages->page_list[9] = SVPD_LBP; 9869 9870 ctsio->scsi_status = SCSI_STATUS_OK; 9871 9872 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9873 ctsio->be_move_done = ctl_config_move_done; 9874 ctl_datamove((union ctl_io *)ctsio); 9875 9876 return (CTL_RETVAL_COMPLETE); 9877} 9878 9879static int 9880ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9881{ 9882 struct scsi_vpd_unit_serial_number *sn_ptr; 9883 struct ctl_lun *lun; 9884 9885 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9886 9887 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9888 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9889 ctsio->kern_sg_entries = 0; 9890 9891 if (sizeof(*sn_ptr) < alloc_len) { 9892 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9893 ctsio->kern_data_len = sizeof(*sn_ptr); 9894 ctsio->kern_total_len = sizeof(*sn_ptr); 9895 } else { 9896 ctsio->residual = 0; 9897 ctsio->kern_data_len = alloc_len; 9898 ctsio->kern_total_len = alloc_len; 9899 } 9900 ctsio->kern_data_resid = 0; 9901 ctsio->kern_rel_offset = 0; 9902 ctsio->kern_sg_entries = 0; 9903 9904 /* 9905 * The control device is always connected. The disk device, on the 9906 * other hand, may not be online all the time. Need to change this 9907 * to figure out whether the disk device is actually online or not. 9908 */ 9909 if (lun != NULL) 9910 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9911 lun->be_lun->lun_type; 9912 else 9913 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9914 9915 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9916 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9917 /* 9918 * If we don't have a LUN, we just leave the serial number as 9919 * all spaces. 9920 */ 9921 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9922 if (lun != NULL) { 9923 strncpy((char *)sn_ptr->serial_num, 9924 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9925 } 9926 ctsio->scsi_status = SCSI_STATUS_OK; 9927 9928 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9929 ctsio->be_move_done = ctl_config_move_done; 9930 ctl_datamove((union ctl_io *)ctsio); 9931 9932 return (CTL_RETVAL_COMPLETE); 9933} 9934 9935 9936static int 9937ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9938{ 9939 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9940 struct ctl_lun *lun; 9941 int data_len; 9942 9943 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9944 9945 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9946 sizeof(struct scsi_vpd_mode_page_policy_descr); 9947 9948 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9949 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9950 ctsio->kern_sg_entries = 0; 9951 9952 if (data_len < alloc_len) { 9953 ctsio->residual = alloc_len - data_len; 9954 ctsio->kern_data_len = data_len; 9955 ctsio->kern_total_len = data_len; 9956 } else { 9957 ctsio->residual = 0; 9958 ctsio->kern_data_len = alloc_len; 9959 ctsio->kern_total_len = alloc_len; 9960 } 9961 ctsio->kern_data_resid = 0; 9962 ctsio->kern_rel_offset = 0; 9963 ctsio->kern_sg_entries = 0; 9964 9965 /* 9966 * The control device is always connected. The disk device, on the 9967 * other hand, may not be online all the time. 9968 */ 9969 if (lun != NULL) 9970 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9971 lun->be_lun->lun_type; 9972 else 9973 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9974 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9975 eid_ptr->page_length = data_len - 4; 9976 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9977 eid_ptr->flags3 = SVPD_EID_V_SUP; 9978 9979 ctsio->scsi_status = SCSI_STATUS_OK; 9980 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9981 ctsio->be_move_done = ctl_config_move_done; 9982 ctl_datamove((union ctl_io *)ctsio); 9983 9984 return (CTL_RETVAL_COMPLETE); 9985} 9986 9987static int 9988ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9989{ 9990 struct scsi_vpd_mode_page_policy *mpp_ptr; 9991 struct ctl_lun *lun; 9992 int data_len; 9993 9994 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9995 9996 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9997 sizeof(struct scsi_vpd_mode_page_policy_descr); 9998 9999 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10000 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 10001 ctsio->kern_sg_entries = 0; 10002 10003 if (data_len < alloc_len) { 10004 ctsio->residual = alloc_len - data_len; 10005 ctsio->kern_data_len = data_len; 10006 ctsio->kern_total_len = data_len; 10007 } else { 10008 ctsio->residual = 0; 10009 ctsio->kern_data_len = alloc_len; 10010 ctsio->kern_total_len = alloc_len; 10011 } 10012 ctsio->kern_data_resid = 0; 10013 ctsio->kern_rel_offset = 0; 10014 ctsio->kern_sg_entries = 0; 10015 10016 /* 10017 * The control device is always connected. The disk device, on the 10018 * other hand, may not be online all the time. 10019 */ 10020 if (lun != NULL) 10021 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10022 lun->be_lun->lun_type; 10023 else 10024 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10025 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 10026 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 10027 mpp_ptr->descr[0].page_code = 0x3f; 10028 mpp_ptr->descr[0].subpage_code = 0xff; 10029 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10030 10031 ctsio->scsi_status = SCSI_STATUS_OK; 10032 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10033 ctsio->be_move_done = ctl_config_move_done; 10034 ctl_datamove((union ctl_io *)ctsio); 10035 10036 return (CTL_RETVAL_COMPLETE); 10037} 10038 10039static int 10040ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10041{ 10042 struct scsi_vpd_device_id *devid_ptr; 10043 struct scsi_vpd_id_descriptor *desc; 10044 struct ctl_softc *ctl_softc; 10045 struct ctl_lun *lun; 10046 struct ctl_port *port; 10047 int data_len; 10048 uint8_t proto; 10049 10050 ctl_softc = control_softc; 10051 10052 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10053 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10054 10055 data_len = sizeof(struct scsi_vpd_device_id) + 10056 sizeof(struct scsi_vpd_id_descriptor) + 10057 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10058 sizeof(struct scsi_vpd_id_descriptor) + 10059 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10060 if (lun && lun->lun_devid) 10061 data_len += lun->lun_devid->len; 10062 if (port->port_devid) 10063 data_len += port->port_devid->len; 10064 if (port->target_devid) 10065 data_len += port->target_devid->len; 10066 10067 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10068 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10069 ctsio->kern_sg_entries = 0; 10070 10071 if (data_len < alloc_len) { 10072 ctsio->residual = alloc_len - data_len; 10073 ctsio->kern_data_len = data_len; 10074 ctsio->kern_total_len = data_len; 10075 } else { 10076 ctsio->residual = 0; 10077 ctsio->kern_data_len = alloc_len; 10078 ctsio->kern_total_len = alloc_len; 10079 } 10080 ctsio->kern_data_resid = 0; 10081 ctsio->kern_rel_offset = 0; 10082 ctsio->kern_sg_entries = 0; 10083 10084 /* 10085 * The control device is always connected. The disk device, on the 10086 * other hand, may not be online all the time. 10087 */ 10088 if (lun != NULL) 10089 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10090 lun->be_lun->lun_type; 10091 else 10092 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10093 devid_ptr->page_code = SVPD_DEVICE_ID; 10094 scsi_ulto2b(data_len - 4, devid_ptr->length); 10095 10096 if (port->port_type == CTL_PORT_FC) 10097 proto = SCSI_PROTO_FC << 4; 10098 else if (port->port_type == CTL_PORT_ISCSI) 10099 proto = SCSI_PROTO_ISCSI << 4; 10100 else 10101 proto = SCSI_PROTO_SPI << 4; 10102 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10103 10104 /* 10105 * We're using a LUN association here. i.e., this device ID is a 10106 * per-LUN identifier. 10107 */ 10108 if (lun && lun->lun_devid) { 10109 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10110 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10111 lun->lun_devid->len); 10112 } 10113 10114 /* 10115 * This is for the WWPN which is a port association. 10116 */ 10117 if (port->port_devid) { 10118 memcpy(desc, port->port_devid->data, port->port_devid->len); 10119 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10120 port->port_devid->len); 10121 } 10122 10123 /* 10124 * This is for the Relative Target Port(type 4h) identifier 10125 */ 10126 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10127 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10128 SVPD_ID_TYPE_RELTARG; 10129 desc->length = 4; 10130 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10131 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10132 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10133 10134 /* 10135 * This is for the Target Port Group(type 5h) identifier 10136 */ 10137 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10138 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10139 SVPD_ID_TYPE_TPORTGRP; 10140 desc->length = 4; 10141 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10142 &desc->identifier[2]); 10143 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10144 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10145 10146 /* 10147 * This is for the Target identifier 10148 */ 10149 if (port->target_devid) { 10150 memcpy(desc, port->target_devid->data, port->target_devid->len); 10151 } 10152 10153 ctsio->scsi_status = SCSI_STATUS_OK; 10154 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10155 ctsio->be_move_done = ctl_config_move_done; 10156 ctl_datamove((union ctl_io *)ctsio); 10157 10158 return (CTL_RETVAL_COMPLETE); 10159} 10160 10161static int 10162ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10163{ 10164 struct ctl_softc *softc = control_softc; 10165 struct scsi_vpd_scsi_ports *sp; 10166 struct scsi_vpd_port_designation *pd; 10167 struct scsi_vpd_port_designation_cont *pdc; 10168 struct ctl_lun *lun; 10169 struct ctl_port *port; 10170 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10171 int num_target_port_groups, single; 10172 10173 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10174 10175 single = ctl_is_single; 10176 if (single) 10177 num_target_port_groups = 1; 10178 else 10179 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10180 num_target_ports = 0; 10181 iid_len = 0; 10182 id_len = 0; 10183 mtx_lock(&softc->ctl_lock); 10184 STAILQ_FOREACH(port, &softc->port_list, links) { 10185 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10186 continue; 10187 if (lun != NULL && 10188 ctl_map_lun_back(port->targ_port, lun->lun) >= 10189 CTL_MAX_LUNS) 10190 continue; 10191 num_target_ports++; 10192 if (port->init_devid) 10193 iid_len += port->init_devid->len; 10194 if (port->port_devid) 10195 id_len += port->port_devid->len; 10196 } 10197 mtx_unlock(&softc->ctl_lock); 10198 10199 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10200 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10201 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10202 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10203 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10204 ctsio->kern_sg_entries = 0; 10205 10206 if (data_len < alloc_len) { 10207 ctsio->residual = alloc_len - data_len; 10208 ctsio->kern_data_len = data_len; 10209 ctsio->kern_total_len = data_len; 10210 } else { 10211 ctsio->residual = 0; 10212 ctsio->kern_data_len = alloc_len; 10213 ctsio->kern_total_len = alloc_len; 10214 } 10215 ctsio->kern_data_resid = 0; 10216 ctsio->kern_rel_offset = 0; 10217 ctsio->kern_sg_entries = 0; 10218 10219 /* 10220 * The control device is always connected. The disk device, on the 10221 * other hand, may not be online all the time. Need to change this 10222 * to figure out whether the disk device is actually online or not. 10223 */ 10224 if (lun != NULL) 10225 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10226 lun->be_lun->lun_type; 10227 else 10228 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10229 10230 sp->page_code = SVPD_SCSI_PORTS; 10231 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10232 sp->page_length); 10233 pd = &sp->design[0]; 10234 10235 mtx_lock(&softc->ctl_lock); 10236 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10237 pg = 0; 10238 else 10239 pg = 1; 10240 for (g = 0; g < num_target_port_groups; g++) { 10241 STAILQ_FOREACH(port, &softc->port_list, links) { 10242 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10243 continue; 10244 if (lun != NULL && 10245 ctl_map_lun_back(port->targ_port, lun->lun) >= 10246 CTL_MAX_LUNS) 10247 continue; 10248 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10249 scsi_ulto2b(p, pd->relative_port_id); 10250 if (port->init_devid && g == pg) { 10251 iid_len = port->init_devid->len; 10252 memcpy(pd->initiator_transportid, 10253 port->init_devid->data, port->init_devid->len); 10254 } else 10255 iid_len = 0; 10256 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10257 pdc = (struct scsi_vpd_port_designation_cont *) 10258 (&pd->initiator_transportid[iid_len]); 10259 if (port->port_devid && g == pg) { 10260 id_len = port->port_devid->len; 10261 memcpy(pdc->target_port_descriptors, 10262 port->port_devid->data, port->port_devid->len); 10263 } else 10264 id_len = 0; 10265 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10266 pd = (struct scsi_vpd_port_designation *) 10267 ((uint8_t *)pdc->target_port_descriptors + id_len); 10268 } 10269 } 10270 mtx_unlock(&softc->ctl_lock); 10271 10272 ctsio->scsi_status = SCSI_STATUS_OK; 10273 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10274 ctsio->be_move_done = ctl_config_move_done; 10275 ctl_datamove((union ctl_io *)ctsio); 10276 10277 return (CTL_RETVAL_COMPLETE); 10278} 10279 10280static int 10281ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10282{ 10283 struct scsi_vpd_block_limits *bl_ptr; 10284 struct ctl_lun *lun; 10285 int bs; 10286 10287 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10288 10289 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10290 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10291 ctsio->kern_sg_entries = 0; 10292 10293 if (sizeof(*bl_ptr) < alloc_len) { 10294 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10295 ctsio->kern_data_len = sizeof(*bl_ptr); 10296 ctsio->kern_total_len = sizeof(*bl_ptr); 10297 } else { 10298 ctsio->residual = 0; 10299 ctsio->kern_data_len = alloc_len; 10300 ctsio->kern_total_len = alloc_len; 10301 } 10302 ctsio->kern_data_resid = 0; 10303 ctsio->kern_rel_offset = 0; 10304 ctsio->kern_sg_entries = 0; 10305 10306 /* 10307 * The control device is always connected. The disk device, on the 10308 * other hand, may not be online all the time. Need to change this 10309 * to figure out whether the disk device is actually online or not. 10310 */ 10311 if (lun != NULL) 10312 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10313 lun->be_lun->lun_type; 10314 else 10315 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10316 10317 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10318 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10319 bl_ptr->max_cmp_write_len = 0xff; 10320 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10321 if (lun != NULL) { 10322 bs = lun->be_lun->blocksize; 10323 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10324 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10325 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10326 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10327 if (lun->be_lun->pblockexp != 0) { 10328 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10329 bl_ptr->opt_unmap_grain); 10330 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10331 bl_ptr->unmap_grain_align); 10332 } 10333 } 10334 } 10335 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10336 10337 ctsio->scsi_status = SCSI_STATUS_OK; 10338 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10339 ctsio->be_move_done = ctl_config_move_done; 10340 ctl_datamove((union ctl_io *)ctsio); 10341 10342 return (CTL_RETVAL_COMPLETE); 10343} 10344 10345static int 10346ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10347{ 10348 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10349 struct ctl_lun *lun; 10350 10351 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10352 10353 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10354 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10355 ctsio->kern_sg_entries = 0; 10356 10357 if (sizeof(*bdc_ptr) < alloc_len) { 10358 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10359 ctsio->kern_data_len = sizeof(*bdc_ptr); 10360 ctsio->kern_total_len = sizeof(*bdc_ptr); 10361 } else { 10362 ctsio->residual = 0; 10363 ctsio->kern_data_len = alloc_len; 10364 ctsio->kern_total_len = alloc_len; 10365 } 10366 ctsio->kern_data_resid = 0; 10367 ctsio->kern_rel_offset = 0; 10368 ctsio->kern_sg_entries = 0; 10369 10370 /* 10371 * The control device is always connected. The disk device, on the 10372 * other hand, may not be online all the time. Need to change this 10373 * to figure out whether the disk device is actually online or not. 10374 */ 10375 if (lun != NULL) 10376 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10377 lun->be_lun->lun_type; 10378 else 10379 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10380 bdc_ptr->page_code = SVPD_BDC; 10381 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10382 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10383 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10384 10385 ctsio->scsi_status = SCSI_STATUS_OK; 10386 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10387 ctsio->be_move_done = ctl_config_move_done; 10388 ctl_datamove((union ctl_io *)ctsio); 10389 10390 return (CTL_RETVAL_COMPLETE); 10391} 10392 10393static int 10394ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10395{ 10396 struct scsi_vpd_logical_block_prov *lbp_ptr; 10397 struct ctl_lun *lun; 10398 10399 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10400 10401 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10402 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10403 ctsio->kern_sg_entries = 0; 10404 10405 if (sizeof(*lbp_ptr) < alloc_len) { 10406 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10407 ctsio->kern_data_len = sizeof(*lbp_ptr); 10408 ctsio->kern_total_len = sizeof(*lbp_ptr); 10409 } else { 10410 ctsio->residual = 0; 10411 ctsio->kern_data_len = alloc_len; 10412 ctsio->kern_total_len = alloc_len; 10413 } 10414 ctsio->kern_data_resid = 0; 10415 ctsio->kern_rel_offset = 0; 10416 ctsio->kern_sg_entries = 0; 10417 10418 /* 10419 * The control device is always connected. The disk device, on the 10420 * other hand, may not be online all the time. Need to change this 10421 * to figure out whether the disk device is actually online or not. 10422 */ 10423 if (lun != NULL) 10424 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10425 lun->be_lun->lun_type; 10426 else 10427 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10428 10429 lbp_ptr->page_code = SVPD_LBP; 10430 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10431 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10432 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10433 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10434 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10435 } 10436 10437 ctsio->scsi_status = SCSI_STATUS_OK; 10438 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10439 ctsio->be_move_done = ctl_config_move_done; 10440 ctl_datamove((union ctl_io *)ctsio); 10441 10442 return (CTL_RETVAL_COMPLETE); 10443} 10444 10445static int 10446ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10447{ 10448 struct scsi_inquiry *cdb; 10449 struct ctl_lun *lun; 10450 int alloc_len, retval; 10451 10452 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10453 cdb = (struct scsi_inquiry *)ctsio->cdb; 10454 10455 retval = CTL_RETVAL_COMPLETE; 10456 10457 alloc_len = scsi_2btoul(cdb->length); 10458 10459 switch (cdb->page_code) { 10460 case SVPD_SUPPORTED_PAGES: 10461 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10462 break; 10463 case SVPD_UNIT_SERIAL_NUMBER: 10464 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10465 break; 10466 case SVPD_DEVICE_ID: 10467 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10468 break; 10469 case SVPD_EXTENDED_INQUIRY_DATA: 10470 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10471 break; 10472 case SVPD_MODE_PAGE_POLICY: 10473 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10474 break; 10475 case SVPD_SCSI_PORTS: 10476 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10477 break; 10478 case SVPD_SCSI_TPC: 10479 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10480 break; 10481 case SVPD_BLOCK_LIMITS: 10482 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10483 break; 10484 case SVPD_BDC: 10485 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10486 break; 10487 case SVPD_LBP: 10488 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10489 break; 10490 default: 10491 ctl_set_invalid_field(ctsio, 10492 /*sks_valid*/ 1, 10493 /*command*/ 1, 10494 /*field*/ 2, 10495 /*bit_valid*/ 0, 10496 /*bit*/ 0); 10497 ctl_done((union ctl_io *)ctsio); 10498 retval = CTL_RETVAL_COMPLETE; 10499 break; 10500 } 10501 10502 return (retval); 10503} 10504 10505static int 10506ctl_inquiry_std(struct ctl_scsiio *ctsio) 10507{ 10508 struct scsi_inquiry_data *inq_ptr; 10509 struct scsi_inquiry *cdb; 10510 struct ctl_softc *ctl_softc; 10511 struct ctl_lun *lun; 10512 char *val; 10513 uint32_t alloc_len; 10514 ctl_port_type port_type; 10515 10516 ctl_softc = control_softc; 10517 10518 /* 10519 * Figure out whether we're talking to a Fibre Channel port or not. 10520 * We treat the ioctl front end, and any SCSI adapters, as packetized 10521 * SCSI front ends. 10522 */ 10523 port_type = ctl_softc->ctl_ports[ 10524 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10525 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10526 port_type = CTL_PORT_SCSI; 10527 10528 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10529 cdb = (struct scsi_inquiry *)ctsio->cdb; 10530 alloc_len = scsi_2btoul(cdb->length); 10531 10532 /* 10533 * We malloc the full inquiry data size here and fill it 10534 * in. If the user only asks for less, we'll give him 10535 * that much. 10536 */ 10537 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10538 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10539 ctsio->kern_sg_entries = 0; 10540 ctsio->kern_data_resid = 0; 10541 ctsio->kern_rel_offset = 0; 10542 10543 if (sizeof(*inq_ptr) < alloc_len) { 10544 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10545 ctsio->kern_data_len = sizeof(*inq_ptr); 10546 ctsio->kern_total_len = sizeof(*inq_ptr); 10547 } else { 10548 ctsio->residual = 0; 10549 ctsio->kern_data_len = alloc_len; 10550 ctsio->kern_total_len = alloc_len; 10551 } 10552 10553 /* 10554 * If we have a LUN configured, report it as connected. Otherwise, 10555 * report that it is offline or no device is supported, depending 10556 * on the value of inquiry_pq_no_lun. 10557 * 10558 * According to the spec (SPC-4 r34), the peripheral qualifier 10559 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10560 * 10561 * "A peripheral device having the specified peripheral device type 10562 * is not connected to this logical unit. However, the device 10563 * server is capable of supporting the specified peripheral device 10564 * type on this logical unit." 10565 * 10566 * According to the same spec, the peripheral qualifier 10567 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10568 * 10569 * "The device server is not capable of supporting a peripheral 10570 * device on this logical unit. For this peripheral qualifier the 10571 * peripheral device type shall be set to 1Fh. All other peripheral 10572 * device type values are reserved for this peripheral qualifier." 10573 * 10574 * Given the text, it would seem that we probably want to report that 10575 * the LUN is offline here. There is no LUN connected, but we can 10576 * support a LUN at the given LUN number. 10577 * 10578 * In the real world, though, it sounds like things are a little 10579 * different: 10580 * 10581 * - Linux, when presented with a LUN with the offline peripheral 10582 * qualifier, will create an sg driver instance for it. So when 10583 * you attach it to CTL, you wind up with a ton of sg driver 10584 * instances. (One for every LUN that Linux bothered to probe.) 10585 * Linux does this despite the fact that it issues a REPORT LUNs 10586 * to LUN 0 to get the inventory of supported LUNs. 10587 * 10588 * - There is other anecdotal evidence (from Emulex folks) about 10589 * arrays that use the offline peripheral qualifier for LUNs that 10590 * are on the "passive" path in an active/passive array. 10591 * 10592 * So the solution is provide a hopefully reasonable default 10593 * (return bad/no LUN) and allow the user to change the behavior 10594 * with a tunable/sysctl variable. 10595 */ 10596 if (lun != NULL) 10597 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10598 lun->be_lun->lun_type; 10599 else if (ctl_softc->inquiry_pq_no_lun == 0) 10600 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10601 else 10602 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10603 10604 /* RMB in byte 2 is 0 */ 10605 inq_ptr->version = SCSI_REV_SPC4; 10606 10607 /* 10608 * According to SAM-3, even if a device only supports a single 10609 * level of LUN addressing, it should still set the HISUP bit: 10610 * 10611 * 4.9.1 Logical unit numbers overview 10612 * 10613 * All logical unit number formats described in this standard are 10614 * hierarchical in structure even when only a single level in that 10615 * hierarchy is used. The HISUP bit shall be set to one in the 10616 * standard INQUIRY data (see SPC-2) when any logical unit number 10617 * format described in this standard is used. Non-hierarchical 10618 * formats are outside the scope of this standard. 10619 * 10620 * Therefore we set the HiSup bit here. 10621 * 10622 * The reponse format is 2, per SPC-3. 10623 */ 10624 inq_ptr->response_format = SID_HiSup | 2; 10625 10626 inq_ptr->additional_length = 10627 offsetof(struct scsi_inquiry_data, vendor_specific1) - 10628 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10629 CTL_DEBUG_PRINT(("additional_length = %d\n", 10630 inq_ptr->additional_length)); 10631 10632 inq_ptr->spc3_flags = SPC3_SID_3PC; 10633 if (!ctl_is_single) 10634 inq_ptr->spc3_flags |= SPC3_SID_TPGS_IMPLICIT; 10635 /* 16 bit addressing */ 10636 if (port_type == CTL_PORT_SCSI) 10637 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10638 /* XXX set the SID_MultiP bit here if we're actually going to 10639 respond on multiple ports */ 10640 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10641 10642 /* 16 bit data bus, synchronous transfers */ 10643 if (port_type == CTL_PORT_SCSI) 10644 inq_ptr->flags = SID_WBus16 | SID_Sync; 10645 /* 10646 * XXX KDM do we want to support tagged queueing on the control 10647 * device at all? 10648 */ 10649 if ((lun == NULL) 10650 || (lun->be_lun->lun_type != T_PROCESSOR)) 10651 inq_ptr->flags |= SID_CmdQue; 10652 /* 10653 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10654 * We have 8 bytes for the vendor name, and 16 bytes for the device 10655 * name and 4 bytes for the revision. 10656 */ 10657 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10658 "vendor")) == NULL) { 10659 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10660 } else { 10661 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10662 strncpy(inq_ptr->vendor, val, 10663 min(sizeof(inq_ptr->vendor), strlen(val))); 10664 } 10665 if (lun == NULL) { 10666 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10667 sizeof(inq_ptr->product)); 10668 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10669 switch (lun->be_lun->lun_type) { 10670 case T_DIRECT: 10671 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10672 sizeof(inq_ptr->product)); 10673 break; 10674 case T_PROCESSOR: 10675 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10676 sizeof(inq_ptr->product)); 10677 break; 10678 default: 10679 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10680 sizeof(inq_ptr->product)); 10681 break; 10682 } 10683 } else { 10684 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10685 strncpy(inq_ptr->product, val, 10686 min(sizeof(inq_ptr->product), strlen(val))); 10687 } 10688 10689 /* 10690 * XXX make this a macro somewhere so it automatically gets 10691 * incremented when we make changes. 10692 */ 10693 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10694 "revision")) == NULL) { 10695 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10696 } else { 10697 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10698 strncpy(inq_ptr->revision, val, 10699 min(sizeof(inq_ptr->revision), strlen(val))); 10700 } 10701 10702 /* 10703 * For parallel SCSI, we support double transition and single 10704 * transition clocking. We also support QAS (Quick Arbitration 10705 * and Selection) and Information Unit transfers on both the 10706 * control and array devices. 10707 */ 10708 if (port_type == CTL_PORT_SCSI) 10709 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10710 SID_SPI_IUS; 10711 10712 /* SAM-5 (no version claimed) */ 10713 scsi_ulto2b(0x00A0, inq_ptr->version1); 10714 /* SPC-4 (no version claimed) */ 10715 scsi_ulto2b(0x0460, inq_ptr->version2); 10716 if (port_type == CTL_PORT_FC) { 10717 /* FCP-2 ANSI INCITS.350:2003 */ 10718 scsi_ulto2b(0x0917, inq_ptr->version3); 10719 } else if (port_type == CTL_PORT_SCSI) { 10720 /* SPI-4 ANSI INCITS.362:200x */ 10721 scsi_ulto2b(0x0B56, inq_ptr->version3); 10722 } else if (port_type == CTL_PORT_ISCSI) { 10723 /* iSCSI (no version claimed) */ 10724 scsi_ulto2b(0x0960, inq_ptr->version3); 10725 } else if (port_type == CTL_PORT_SAS) { 10726 /* SAS (no version claimed) */ 10727 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10728 } 10729 10730 if (lun == NULL) { 10731 /* SBC-3 (no version claimed) */ 10732 scsi_ulto2b(0x04C0, inq_ptr->version4); 10733 } else { 10734 switch (lun->be_lun->lun_type) { 10735 case T_DIRECT: 10736 /* SBC-3 (no version claimed) */ 10737 scsi_ulto2b(0x04C0, inq_ptr->version4); 10738 break; 10739 case T_PROCESSOR: 10740 default: 10741 break; 10742 } 10743 } 10744 10745 ctsio->scsi_status = SCSI_STATUS_OK; 10746 if (ctsio->kern_data_len > 0) { 10747 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10748 ctsio->be_move_done = ctl_config_move_done; 10749 ctl_datamove((union ctl_io *)ctsio); 10750 } else { 10751 ctsio->io_hdr.status = CTL_SUCCESS; 10752 ctl_done((union ctl_io *)ctsio); 10753 } 10754 10755 return (CTL_RETVAL_COMPLETE); 10756} 10757 10758int 10759ctl_inquiry(struct ctl_scsiio *ctsio) 10760{ 10761 struct scsi_inquiry *cdb; 10762 int retval; 10763 10764 cdb = (struct scsi_inquiry *)ctsio->cdb; 10765 10766 retval = 0; 10767 10768 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10769 10770 /* 10771 * Right now, we don't support the CmdDt inquiry information. 10772 * This would be nice to support in the future. When we do 10773 * support it, we should change this test so that it checks to make 10774 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10775 */ 10776#ifdef notyet 10777 if (((cdb->byte2 & SI_EVPD) 10778 && (cdb->byte2 & SI_CMDDT))) 10779#endif 10780 if (cdb->byte2 & SI_CMDDT) { 10781 /* 10782 * Point to the SI_CMDDT bit. We might change this 10783 * when we support SI_CMDDT, but since both bits would be 10784 * "wrong", this should probably just stay as-is then. 10785 */ 10786 ctl_set_invalid_field(ctsio, 10787 /*sks_valid*/ 1, 10788 /*command*/ 1, 10789 /*field*/ 1, 10790 /*bit_valid*/ 1, 10791 /*bit*/ 1); 10792 ctl_done((union ctl_io *)ctsio); 10793 return (CTL_RETVAL_COMPLETE); 10794 } 10795 if (cdb->byte2 & SI_EVPD) 10796 retval = ctl_inquiry_evpd(ctsio); 10797#ifdef notyet 10798 else if (cdb->byte2 & SI_CMDDT) 10799 retval = ctl_inquiry_cmddt(ctsio); 10800#endif 10801 else 10802 retval = ctl_inquiry_std(ctsio); 10803 10804 return (retval); 10805} 10806 10807/* 10808 * For known CDB types, parse the LBA and length. 10809 */ 10810static int 10811ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10812{ 10813 if (io->io_hdr.io_type != CTL_IO_SCSI) 10814 return (1); 10815 10816 switch (io->scsiio.cdb[0]) { 10817 case COMPARE_AND_WRITE: { 10818 struct scsi_compare_and_write *cdb; 10819 10820 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10821 10822 *lba = scsi_8btou64(cdb->addr); 10823 *len = cdb->length; 10824 break; 10825 } 10826 case READ_6: 10827 case WRITE_6: { 10828 struct scsi_rw_6 *cdb; 10829 10830 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10831 10832 *lba = scsi_3btoul(cdb->addr); 10833 /* only 5 bits are valid in the most significant address byte */ 10834 *lba &= 0x1fffff; 10835 *len = cdb->length; 10836 break; 10837 } 10838 case READ_10: 10839 case WRITE_10: { 10840 struct scsi_rw_10 *cdb; 10841 10842 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10843 10844 *lba = scsi_4btoul(cdb->addr); 10845 *len = scsi_2btoul(cdb->length); 10846 break; 10847 } 10848 case WRITE_VERIFY_10: { 10849 struct scsi_write_verify_10 *cdb; 10850 10851 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10852 10853 *lba = scsi_4btoul(cdb->addr); 10854 *len = scsi_2btoul(cdb->length); 10855 break; 10856 } 10857 case READ_12: 10858 case WRITE_12: { 10859 struct scsi_rw_12 *cdb; 10860 10861 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10862 10863 *lba = scsi_4btoul(cdb->addr); 10864 *len = scsi_4btoul(cdb->length); 10865 break; 10866 } 10867 case WRITE_VERIFY_12: { 10868 struct scsi_write_verify_12 *cdb; 10869 10870 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10871 10872 *lba = scsi_4btoul(cdb->addr); 10873 *len = scsi_4btoul(cdb->length); 10874 break; 10875 } 10876 case READ_16: 10877 case WRITE_16: { 10878 struct scsi_rw_16 *cdb; 10879 10880 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10881 10882 *lba = scsi_8btou64(cdb->addr); 10883 *len = scsi_4btoul(cdb->length); 10884 break; 10885 } 10886 case WRITE_VERIFY_16: { 10887 struct scsi_write_verify_16 *cdb; 10888 10889 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10890 10891 10892 *lba = scsi_8btou64(cdb->addr); 10893 *len = scsi_4btoul(cdb->length); 10894 break; 10895 } 10896 case WRITE_SAME_10: { 10897 struct scsi_write_same_10 *cdb; 10898 10899 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10900 10901 *lba = scsi_4btoul(cdb->addr); 10902 *len = scsi_2btoul(cdb->length); 10903 break; 10904 } 10905 case WRITE_SAME_16: { 10906 struct scsi_write_same_16 *cdb; 10907 10908 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10909 10910 *lba = scsi_8btou64(cdb->addr); 10911 *len = scsi_4btoul(cdb->length); 10912 break; 10913 } 10914 case VERIFY_10: { 10915 struct scsi_verify_10 *cdb; 10916 10917 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10918 10919 *lba = scsi_4btoul(cdb->addr); 10920 *len = scsi_2btoul(cdb->length); 10921 break; 10922 } 10923 case VERIFY_12: { 10924 struct scsi_verify_12 *cdb; 10925 10926 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10927 10928 *lba = scsi_4btoul(cdb->addr); 10929 *len = scsi_4btoul(cdb->length); 10930 break; 10931 } 10932 case VERIFY_16: { 10933 struct scsi_verify_16 *cdb; 10934 10935 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10936 10937 *lba = scsi_8btou64(cdb->addr); 10938 *len = scsi_4btoul(cdb->length); 10939 break; 10940 } 10941 default: 10942 return (1); 10943 break; /* NOTREACHED */ 10944 } 10945 10946 return (0); 10947} 10948 10949static ctl_action 10950ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10951{ 10952 uint64_t endlba1, endlba2; 10953 10954 endlba1 = lba1 + len1 - 1; 10955 endlba2 = lba2 + len2 - 1; 10956 10957 if ((endlba1 < lba2) 10958 || (endlba2 < lba1)) 10959 return (CTL_ACTION_PASS); 10960 else 10961 return (CTL_ACTION_BLOCK); 10962} 10963 10964static ctl_action 10965ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10966{ 10967 uint64_t lba1, lba2; 10968 uint32_t len1, len2; 10969 int retval; 10970 10971 retval = ctl_get_lba_len(io1, &lba1, &len1); 10972 if (retval != 0) 10973 return (CTL_ACTION_ERROR); 10974 10975 retval = ctl_get_lba_len(io2, &lba2, &len2); 10976 if (retval != 0) 10977 return (CTL_ACTION_ERROR); 10978 10979 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10980} 10981 10982static ctl_action 10983ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10984{ 10985 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10986 ctl_serialize_action *serialize_row; 10987 10988 /* 10989 * The initiator attempted multiple untagged commands at the same 10990 * time. Can't do that. 10991 */ 10992 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10993 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10994 && ((pending_io->io_hdr.nexus.targ_port == 10995 ooa_io->io_hdr.nexus.targ_port) 10996 && (pending_io->io_hdr.nexus.initid.id == 10997 ooa_io->io_hdr.nexus.initid.id)) 10998 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10999 return (CTL_ACTION_OVERLAP); 11000 11001 /* 11002 * The initiator attempted to send multiple tagged commands with 11003 * the same ID. (It's fine if different initiators have the same 11004 * tag ID.) 11005 * 11006 * Even if all of those conditions are true, we don't kill the I/O 11007 * if the command ahead of us has been aborted. We won't end up 11008 * sending it to the FETD, and it's perfectly legal to resend a 11009 * command with the same tag number as long as the previous 11010 * instance of this tag number has been aborted somehow. 11011 */ 11012 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11013 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11014 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11015 && ((pending_io->io_hdr.nexus.targ_port == 11016 ooa_io->io_hdr.nexus.targ_port) 11017 && (pending_io->io_hdr.nexus.initid.id == 11018 ooa_io->io_hdr.nexus.initid.id)) 11019 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11020 return (CTL_ACTION_OVERLAP_TAG); 11021 11022 /* 11023 * If we get a head of queue tag, SAM-3 says that we should 11024 * immediately execute it. 11025 * 11026 * What happens if this command would normally block for some other 11027 * reason? e.g. a request sense with a head of queue tag 11028 * immediately after a write. Normally that would block, but this 11029 * will result in its getting executed immediately... 11030 * 11031 * We currently return "pass" instead of "skip", so we'll end up 11032 * going through the rest of the queue to check for overlapped tags. 11033 * 11034 * XXX KDM check for other types of blockage first?? 11035 */ 11036 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11037 return (CTL_ACTION_PASS); 11038 11039 /* 11040 * Ordered tags have to block until all items ahead of them 11041 * have completed. If we get called with an ordered tag, we always 11042 * block, if something else is ahead of us in the queue. 11043 */ 11044 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11045 return (CTL_ACTION_BLOCK); 11046 11047 /* 11048 * Simple tags get blocked until all head of queue and ordered tags 11049 * ahead of them have completed. I'm lumping untagged commands in 11050 * with simple tags here. XXX KDM is that the right thing to do? 11051 */ 11052 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11053 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11054 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11055 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11056 return (CTL_ACTION_BLOCK); 11057 11058 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 11059 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 11060 11061 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11062 11063 switch (serialize_row[pending_entry->seridx]) { 11064 case CTL_SER_BLOCK: 11065 return (CTL_ACTION_BLOCK); 11066 break; /* NOTREACHED */ 11067 case CTL_SER_EXTENT: 11068 return (ctl_extent_check(pending_io, ooa_io)); 11069 break; /* NOTREACHED */ 11070 case CTL_SER_PASS: 11071 return (CTL_ACTION_PASS); 11072 break; /* NOTREACHED */ 11073 case CTL_SER_SKIP: 11074 return (CTL_ACTION_SKIP); 11075 break; 11076 default: 11077 panic("invalid serialization value %d", 11078 serialize_row[pending_entry->seridx]); 11079 break; /* NOTREACHED */ 11080 } 11081 11082 return (CTL_ACTION_ERROR); 11083} 11084 11085/* 11086 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11087 * Assumptions: 11088 * - pending_io is generally either incoming, or on the blocked queue 11089 * - starting I/O is the I/O we want to start the check with. 11090 */ 11091static ctl_action 11092ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11093 union ctl_io *starting_io) 11094{ 11095 union ctl_io *ooa_io; 11096 ctl_action action; 11097 11098 mtx_assert(&lun->lun_lock, MA_OWNED); 11099 11100 /* 11101 * Run back along the OOA queue, starting with the current 11102 * blocked I/O and going through every I/O before it on the 11103 * queue. If starting_io is NULL, we'll just end up returning 11104 * CTL_ACTION_PASS. 11105 */ 11106 for (ooa_io = starting_io; ooa_io != NULL; 11107 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11108 ooa_links)){ 11109 11110 /* 11111 * This routine just checks to see whether 11112 * cur_blocked is blocked by ooa_io, which is ahead 11113 * of it in the queue. It doesn't queue/dequeue 11114 * cur_blocked. 11115 */ 11116 action = ctl_check_for_blockage(pending_io, ooa_io); 11117 switch (action) { 11118 case CTL_ACTION_BLOCK: 11119 case CTL_ACTION_OVERLAP: 11120 case CTL_ACTION_OVERLAP_TAG: 11121 case CTL_ACTION_SKIP: 11122 case CTL_ACTION_ERROR: 11123 return (action); 11124 break; /* NOTREACHED */ 11125 case CTL_ACTION_PASS: 11126 break; 11127 default: 11128 panic("invalid action %d", action); 11129 break; /* NOTREACHED */ 11130 } 11131 } 11132 11133 return (CTL_ACTION_PASS); 11134} 11135 11136/* 11137 * Assumptions: 11138 * - An I/O has just completed, and has been removed from the per-LUN OOA 11139 * queue, so some items on the blocked queue may now be unblocked. 11140 */ 11141static int 11142ctl_check_blocked(struct ctl_lun *lun) 11143{ 11144 union ctl_io *cur_blocked, *next_blocked; 11145 11146 mtx_assert(&lun->lun_lock, MA_OWNED); 11147 11148 /* 11149 * Run forward from the head of the blocked queue, checking each 11150 * entry against the I/Os prior to it on the OOA queue to see if 11151 * there is still any blockage. 11152 * 11153 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11154 * with our removing a variable on it while it is traversing the 11155 * list. 11156 */ 11157 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11158 cur_blocked != NULL; cur_blocked = next_blocked) { 11159 union ctl_io *prev_ooa; 11160 ctl_action action; 11161 11162 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11163 blocked_links); 11164 11165 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11166 ctl_ooaq, ooa_links); 11167 11168 /* 11169 * If cur_blocked happens to be the first item in the OOA 11170 * queue now, prev_ooa will be NULL, and the action 11171 * returned will just be CTL_ACTION_PASS. 11172 */ 11173 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11174 11175 switch (action) { 11176 case CTL_ACTION_BLOCK: 11177 /* Nothing to do here, still blocked */ 11178 break; 11179 case CTL_ACTION_OVERLAP: 11180 case CTL_ACTION_OVERLAP_TAG: 11181 /* 11182 * This shouldn't happen! In theory we've already 11183 * checked this command for overlap... 11184 */ 11185 break; 11186 case CTL_ACTION_PASS: 11187 case CTL_ACTION_SKIP: { 11188 struct ctl_softc *softc; 11189 const struct ctl_cmd_entry *entry; 11190 uint32_t initidx; 11191 int isc_retval; 11192 11193 /* 11194 * The skip case shouldn't happen, this transaction 11195 * should have never made it onto the blocked queue. 11196 */ 11197 /* 11198 * This I/O is no longer blocked, we can remove it 11199 * from the blocked queue. Since this is a TAILQ 11200 * (doubly linked list), we can do O(1) removals 11201 * from any place on the list. 11202 */ 11203 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11204 blocked_links); 11205 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11206 11207 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11208 /* 11209 * Need to send IO back to original side to 11210 * run 11211 */ 11212 union ctl_ha_msg msg_info; 11213 11214 msg_info.hdr.original_sc = 11215 cur_blocked->io_hdr.original_sc; 11216 msg_info.hdr.serializing_sc = cur_blocked; 11217 msg_info.hdr.msg_type = CTL_MSG_R2R; 11218 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11219 &msg_info, sizeof(msg_info), 0)) > 11220 CTL_HA_STATUS_SUCCESS) { 11221 printf("CTL:Check Blocked error from " 11222 "ctl_ha_msg_send %d\n", 11223 isc_retval); 11224 } 11225 break; 11226 } 11227 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 11228 softc = control_softc; 11229 11230 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11231 11232 /* 11233 * Check this I/O for LUN state changes that may 11234 * have happened while this command was blocked. 11235 * The LUN state may have been changed by a command 11236 * ahead of us in the queue, so we need to re-check 11237 * for any states that can be caused by SCSI 11238 * commands. 11239 */ 11240 if (ctl_scsiio_lun_check(softc, lun, entry, 11241 &cur_blocked->scsiio) == 0) { 11242 cur_blocked->io_hdr.flags |= 11243 CTL_FLAG_IS_WAS_ON_RTR; 11244 ctl_enqueue_rtr(cur_blocked); 11245 } else 11246 ctl_done(cur_blocked); 11247 break; 11248 } 11249 default: 11250 /* 11251 * This probably shouldn't happen -- we shouldn't 11252 * get CTL_ACTION_ERROR, or anything else. 11253 */ 11254 break; 11255 } 11256 } 11257 11258 return (CTL_RETVAL_COMPLETE); 11259} 11260 11261/* 11262 * This routine (with one exception) checks LUN flags that can be set by 11263 * commands ahead of us in the OOA queue. These flags have to be checked 11264 * when a command initially comes in, and when we pull a command off the 11265 * blocked queue and are preparing to execute it. The reason we have to 11266 * check these flags for commands on the blocked queue is that the LUN 11267 * state may have been changed by a command ahead of us while we're on the 11268 * blocked queue. 11269 * 11270 * Ordering is somewhat important with these checks, so please pay 11271 * careful attention to the placement of any new checks. 11272 */ 11273static int 11274ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11275 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11276{ 11277 int retval; 11278 11279 retval = 0; 11280 11281 mtx_assert(&lun->lun_lock, MA_OWNED); 11282 11283 /* 11284 * If this shelf is a secondary shelf controller, we have to reject 11285 * any media access commands. 11286 */ 11287#if 0 11288 /* No longer needed for HA */ 11289 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11290 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11291 ctl_set_lun_standby(ctsio); 11292 retval = 1; 11293 goto bailout; 11294 } 11295#endif 11296 11297 /* 11298 * Check for a reservation conflict. If this command isn't allowed 11299 * even on reserved LUNs, and if this initiator isn't the one who 11300 * reserved us, reject the command with a reservation conflict. 11301 */ 11302 if ((lun->flags & CTL_LUN_RESERVED) 11303 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11304 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11305 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11306 || (ctsio->io_hdr.nexus.targ_target.id != 11307 lun->rsv_nexus.targ_target.id)) { 11308 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11309 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11310 retval = 1; 11311 goto bailout; 11312 } 11313 } 11314 11315 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11316 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11317 uint32_t residx; 11318 11319 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11320 /* 11321 * if we aren't registered or it's a res holder type 11322 * reservation and this isn't the res holder then set a 11323 * conflict. 11324 * NOTE: Commands which might be allowed on write exclusive 11325 * type reservations are checked in the particular command 11326 * for a conflict. Read and SSU are the only ones. 11327 */ 11328 if (!lun->per_res[residx].registered 11329 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11330 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11331 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11332 retval = 1; 11333 goto bailout; 11334 } 11335 11336 } 11337 11338 if ((lun->flags & CTL_LUN_OFFLINE) 11339 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11340 ctl_set_lun_not_ready(ctsio); 11341 retval = 1; 11342 goto bailout; 11343 } 11344 11345 /* 11346 * If the LUN is stopped, see if this particular command is allowed 11347 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11348 */ 11349 if ((lun->flags & CTL_LUN_STOPPED) 11350 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11351 /* "Logical unit not ready, initializing cmd. required" */ 11352 ctl_set_lun_stopped(ctsio); 11353 retval = 1; 11354 goto bailout; 11355 } 11356 11357 if ((lun->flags & CTL_LUN_INOPERABLE) 11358 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11359 /* "Medium format corrupted" */ 11360 ctl_set_medium_format_corrupted(ctsio); 11361 retval = 1; 11362 goto bailout; 11363 } 11364 11365bailout: 11366 return (retval); 11367 11368} 11369 11370static void 11371ctl_failover_io(union ctl_io *io, int have_lock) 11372{ 11373 ctl_set_busy(&io->scsiio); 11374 ctl_done(io); 11375} 11376 11377static void 11378ctl_failover(void) 11379{ 11380 struct ctl_lun *lun; 11381 struct ctl_softc *ctl_softc; 11382 union ctl_io *next_io, *pending_io; 11383 union ctl_io *io; 11384 int lun_idx; 11385 int i; 11386 11387 ctl_softc = control_softc; 11388 11389 mtx_lock(&ctl_softc->ctl_lock); 11390 /* 11391 * Remove any cmds from the other SC from the rtr queue. These 11392 * will obviously only be for LUNs for which we're the primary. 11393 * We can't send status or get/send data for these commands. 11394 * Since they haven't been executed yet, we can just remove them. 11395 * We'll either abort them or delete them below, depending on 11396 * which HA mode we're in. 11397 */ 11398#ifdef notyet 11399 mtx_lock(&ctl_softc->queue_lock); 11400 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11401 io != NULL; io = next_io) { 11402 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11403 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11404 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11405 ctl_io_hdr, links); 11406 } 11407 mtx_unlock(&ctl_softc->queue_lock); 11408#endif 11409 11410 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11411 lun = ctl_softc->ctl_luns[lun_idx]; 11412 if (lun==NULL) 11413 continue; 11414 11415 /* 11416 * Processor LUNs are primary on both sides. 11417 * XXX will this always be true? 11418 */ 11419 if (lun->be_lun->lun_type == T_PROCESSOR) 11420 continue; 11421 11422 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11423 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11424 printf("FAILOVER: primary lun %d\n", lun_idx); 11425 /* 11426 * Remove all commands from the other SC. First from the 11427 * blocked queue then from the ooa queue. Once we have 11428 * removed them. Call ctl_check_blocked to see if there 11429 * is anything that can run. 11430 */ 11431 for (io = (union ctl_io *)TAILQ_FIRST( 11432 &lun->blocked_queue); io != NULL; io = next_io) { 11433 11434 next_io = (union ctl_io *)TAILQ_NEXT( 11435 &io->io_hdr, blocked_links); 11436 11437 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11438 TAILQ_REMOVE(&lun->blocked_queue, 11439 &io->io_hdr,blocked_links); 11440 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11441 TAILQ_REMOVE(&lun->ooa_queue, 11442 &io->io_hdr, ooa_links); 11443 11444 ctl_free_io(io); 11445 } 11446 } 11447 11448 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11449 io != NULL; io = next_io) { 11450 11451 next_io = (union ctl_io *)TAILQ_NEXT( 11452 &io->io_hdr, ooa_links); 11453 11454 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11455 11456 TAILQ_REMOVE(&lun->ooa_queue, 11457 &io->io_hdr, 11458 ooa_links); 11459 11460 ctl_free_io(io); 11461 } 11462 } 11463 ctl_check_blocked(lun); 11464 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11465 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11466 11467 printf("FAILOVER: primary lun %d\n", lun_idx); 11468 /* 11469 * Abort all commands from the other SC. We can't 11470 * send status back for them now. These should get 11471 * cleaned up when they are completed or come out 11472 * for a datamove operation. 11473 */ 11474 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11475 io != NULL; io = next_io) { 11476 next_io = (union ctl_io *)TAILQ_NEXT( 11477 &io->io_hdr, ooa_links); 11478 11479 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11480 io->io_hdr.flags |= CTL_FLAG_ABORT; 11481 } 11482 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11483 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11484 11485 printf("FAILOVER: secondary lun %d\n", lun_idx); 11486 11487 lun->flags |= CTL_LUN_PRIMARY_SC; 11488 11489 /* 11490 * We send all I/O that was sent to this controller 11491 * and redirected to the other side back with 11492 * busy status, and have the initiator retry it. 11493 * Figuring out how much data has been transferred, 11494 * etc. and picking up where we left off would be 11495 * very tricky. 11496 * 11497 * XXX KDM need to remove I/O from the blocked 11498 * queue as well! 11499 */ 11500 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11501 &lun->ooa_queue); pending_io != NULL; 11502 pending_io = next_io) { 11503 11504 next_io = (union ctl_io *)TAILQ_NEXT( 11505 &pending_io->io_hdr, ooa_links); 11506 11507 pending_io->io_hdr.flags &= 11508 ~CTL_FLAG_SENT_2OTHER_SC; 11509 11510 if (pending_io->io_hdr.flags & 11511 CTL_FLAG_IO_ACTIVE) { 11512 pending_io->io_hdr.flags |= 11513 CTL_FLAG_FAILOVER; 11514 } else { 11515 ctl_set_busy(&pending_io->scsiio); 11516 ctl_done(pending_io); 11517 } 11518 } 11519 11520 /* 11521 * Build Unit Attention 11522 */ 11523 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11524 lun->pending_ua[i] |= 11525 CTL_UA_ASYM_ACC_CHANGE; 11526 } 11527 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11528 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11529 printf("FAILOVER: secondary lun %d\n", lun_idx); 11530 /* 11531 * if the first io on the OOA is not on the RtR queue 11532 * add it. 11533 */ 11534 lun->flags |= CTL_LUN_PRIMARY_SC; 11535 11536 pending_io = (union ctl_io *)TAILQ_FIRST( 11537 &lun->ooa_queue); 11538 if (pending_io==NULL) { 11539 printf("Nothing on OOA queue\n"); 11540 continue; 11541 } 11542 11543 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11544 if ((pending_io->io_hdr.flags & 11545 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11546 pending_io->io_hdr.flags |= 11547 CTL_FLAG_IS_WAS_ON_RTR; 11548 ctl_enqueue_rtr(pending_io); 11549 } 11550#if 0 11551 else 11552 { 11553 printf("Tag 0x%04x is running\n", 11554 pending_io->scsiio.tag_num); 11555 } 11556#endif 11557 11558 next_io = (union ctl_io *)TAILQ_NEXT( 11559 &pending_io->io_hdr, ooa_links); 11560 for (pending_io=next_io; pending_io != NULL; 11561 pending_io = next_io) { 11562 pending_io->io_hdr.flags &= 11563 ~CTL_FLAG_SENT_2OTHER_SC; 11564 next_io = (union ctl_io *)TAILQ_NEXT( 11565 &pending_io->io_hdr, ooa_links); 11566 if (pending_io->io_hdr.flags & 11567 CTL_FLAG_IS_WAS_ON_RTR) { 11568#if 0 11569 printf("Tag 0x%04x is running\n", 11570 pending_io->scsiio.tag_num); 11571#endif 11572 continue; 11573 } 11574 11575 switch (ctl_check_ooa(lun, pending_io, 11576 (union ctl_io *)TAILQ_PREV( 11577 &pending_io->io_hdr, ctl_ooaq, 11578 ooa_links))) { 11579 11580 case CTL_ACTION_BLOCK: 11581 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11582 &pending_io->io_hdr, 11583 blocked_links); 11584 pending_io->io_hdr.flags |= 11585 CTL_FLAG_BLOCKED; 11586 break; 11587 case CTL_ACTION_PASS: 11588 case CTL_ACTION_SKIP: 11589 pending_io->io_hdr.flags |= 11590 CTL_FLAG_IS_WAS_ON_RTR; 11591 ctl_enqueue_rtr(pending_io); 11592 break; 11593 case CTL_ACTION_OVERLAP: 11594 ctl_set_overlapped_cmd( 11595 (struct ctl_scsiio *)pending_io); 11596 ctl_done(pending_io); 11597 break; 11598 case CTL_ACTION_OVERLAP_TAG: 11599 ctl_set_overlapped_tag( 11600 (struct ctl_scsiio *)pending_io, 11601 pending_io->scsiio.tag_num & 0xff); 11602 ctl_done(pending_io); 11603 break; 11604 case CTL_ACTION_ERROR: 11605 default: 11606 ctl_set_internal_failure( 11607 (struct ctl_scsiio *)pending_io, 11608 0, // sks_valid 11609 0); //retry count 11610 ctl_done(pending_io); 11611 break; 11612 } 11613 } 11614 11615 /* 11616 * Build Unit Attention 11617 */ 11618 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11619 lun->pending_ua[i] |= 11620 CTL_UA_ASYM_ACC_CHANGE; 11621 } 11622 } else { 11623 panic("Unhandled HA mode failover, LUN flags = %#x, " 11624 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11625 } 11626 } 11627 ctl_pause_rtr = 0; 11628 mtx_unlock(&ctl_softc->ctl_lock); 11629} 11630 11631static int 11632ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11633{ 11634 struct ctl_lun *lun; 11635 const struct ctl_cmd_entry *entry; 11636 uint32_t initidx, targ_lun; 11637 int retval; 11638 11639 retval = 0; 11640 11641 lun = NULL; 11642 11643 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11644 if ((targ_lun < CTL_MAX_LUNS) 11645 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11646 lun = ctl_softc->ctl_luns[targ_lun]; 11647 /* 11648 * If the LUN is invalid, pretend that it doesn't exist. 11649 * It will go away as soon as all pending I/O has been 11650 * completed. 11651 */ 11652 if (lun->flags & CTL_LUN_DISABLED) { 11653 lun = NULL; 11654 } else { 11655 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11656 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11657 lun->be_lun; 11658 if (lun->be_lun->lun_type == T_PROCESSOR) { 11659 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11660 } 11661 11662 /* 11663 * Every I/O goes into the OOA queue for a 11664 * particular LUN, and stays there until completion. 11665 */ 11666 mtx_lock(&lun->lun_lock); 11667 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11668 ooa_links); 11669 } 11670 } else { 11671 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11672 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11673 } 11674 11675 /* Get command entry and return error if it is unsuppotyed. */ 11676 entry = ctl_validate_command(ctsio); 11677 if (entry == NULL) { 11678 if (lun) 11679 mtx_unlock(&lun->lun_lock); 11680 return (retval); 11681 } 11682 11683 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11684 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11685 11686 /* 11687 * Check to see whether we can send this command to LUNs that don't 11688 * exist. This should pretty much only be the case for inquiry 11689 * and request sense. Further checks, below, really require having 11690 * a LUN, so we can't really check the command anymore. Just put 11691 * it on the rtr queue. 11692 */ 11693 if (lun == NULL) { 11694 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11695 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11696 ctl_enqueue_rtr((union ctl_io *)ctsio); 11697 return (retval); 11698 } 11699 11700 ctl_set_unsupported_lun(ctsio); 11701 ctl_done((union ctl_io *)ctsio); 11702 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11703 return (retval); 11704 } else { 11705 /* 11706 * Make sure we support this particular command on this LUN. 11707 * e.g., we don't support writes to the control LUN. 11708 */ 11709 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11710 mtx_unlock(&lun->lun_lock); 11711 ctl_set_invalid_opcode(ctsio); 11712 ctl_done((union ctl_io *)ctsio); 11713 return (retval); 11714 } 11715 } 11716 11717 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11718 11719#ifdef CTL_WITH_CA 11720 /* 11721 * If we've got a request sense, it'll clear the contingent 11722 * allegiance condition. Otherwise, if we have a CA condition for 11723 * this initiator, clear it, because it sent down a command other 11724 * than request sense. 11725 */ 11726 if ((ctsio->cdb[0] != REQUEST_SENSE) 11727 && (ctl_is_set(lun->have_ca, initidx))) 11728 ctl_clear_mask(lun->have_ca, initidx); 11729#endif 11730 11731 /* 11732 * If the command has this flag set, it handles its own unit 11733 * attention reporting, we shouldn't do anything. Otherwise we 11734 * check for any pending unit attentions, and send them back to the 11735 * initiator. We only do this when a command initially comes in, 11736 * not when we pull it off the blocked queue. 11737 * 11738 * According to SAM-3, section 5.3.2, the order that things get 11739 * presented back to the host is basically unit attentions caused 11740 * by some sort of reset event, busy status, reservation conflicts 11741 * or task set full, and finally any other status. 11742 * 11743 * One issue here is that some of the unit attentions we report 11744 * don't fall into the "reset" category (e.g. "reported luns data 11745 * has changed"). So reporting it here, before the reservation 11746 * check, may be technically wrong. I guess the only thing to do 11747 * would be to check for and report the reset events here, and then 11748 * check for the other unit attention types after we check for a 11749 * reservation conflict. 11750 * 11751 * XXX KDM need to fix this 11752 */ 11753 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11754 ctl_ua_type ua_type; 11755 11756 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11757 scsi_sense_data_type sense_format; 11758 11759 if (lun != NULL) 11760 sense_format = (lun->flags & 11761 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11762 SSD_TYPE_FIXED; 11763 else 11764 sense_format = SSD_TYPE_FIXED; 11765 11766 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11767 &ctsio->sense_data, sense_format); 11768 if (ua_type != CTL_UA_NONE) { 11769 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11770 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11771 CTL_AUTOSENSE; 11772 ctsio->sense_len = SSD_FULL_SIZE; 11773 mtx_unlock(&lun->lun_lock); 11774 ctl_done((union ctl_io *)ctsio); 11775 return (retval); 11776 } 11777 } 11778 } 11779 11780 11781 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11782 mtx_unlock(&lun->lun_lock); 11783 ctl_done((union ctl_io *)ctsio); 11784 return (retval); 11785 } 11786 11787 /* 11788 * XXX CHD this is where we want to send IO to other side if 11789 * this LUN is secondary on this SC. We will need to make a copy 11790 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11791 * the copy we send as FROM_OTHER. 11792 * We also need to stuff the address of the original IO so we can 11793 * find it easily. Something similar will need be done on the other 11794 * side so when we are done we can find the copy. 11795 */ 11796 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11797 union ctl_ha_msg msg_info; 11798 int isc_retval; 11799 11800 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11801 11802 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11803 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11804#if 0 11805 printf("1. ctsio %p\n", ctsio); 11806#endif 11807 msg_info.hdr.serializing_sc = NULL; 11808 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11809 msg_info.scsi.tag_num = ctsio->tag_num; 11810 msg_info.scsi.tag_type = ctsio->tag_type; 11811 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11812 11813 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11814 11815 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11816 (void *)&msg_info, sizeof(msg_info), 0)) > 11817 CTL_HA_STATUS_SUCCESS) { 11818 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11819 isc_retval); 11820 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11821 } else { 11822#if 0 11823 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11824#endif 11825 } 11826 11827 /* 11828 * XXX KDM this I/O is off the incoming queue, but hasn't 11829 * been inserted on any other queue. We may need to come 11830 * up with a holding queue while we wait for serialization 11831 * so that we have an idea of what we're waiting for from 11832 * the other side. 11833 */ 11834 mtx_unlock(&lun->lun_lock); 11835 return (retval); 11836 } 11837 11838 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11839 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11840 ctl_ooaq, ooa_links))) { 11841 case CTL_ACTION_BLOCK: 11842 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11843 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11844 blocked_links); 11845 mtx_unlock(&lun->lun_lock); 11846 return (retval); 11847 case CTL_ACTION_PASS: 11848 case CTL_ACTION_SKIP: 11849 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11850 mtx_unlock(&lun->lun_lock); 11851 ctl_enqueue_rtr((union ctl_io *)ctsio); 11852 break; 11853 case CTL_ACTION_OVERLAP: 11854 mtx_unlock(&lun->lun_lock); 11855 ctl_set_overlapped_cmd(ctsio); 11856 ctl_done((union ctl_io *)ctsio); 11857 break; 11858 case CTL_ACTION_OVERLAP_TAG: 11859 mtx_unlock(&lun->lun_lock); 11860 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11861 ctl_done((union ctl_io *)ctsio); 11862 break; 11863 case CTL_ACTION_ERROR: 11864 default: 11865 mtx_unlock(&lun->lun_lock); 11866 ctl_set_internal_failure(ctsio, 11867 /*sks_valid*/ 0, 11868 /*retry_count*/ 0); 11869 ctl_done((union ctl_io *)ctsio); 11870 break; 11871 } 11872 return (retval); 11873} 11874 11875const struct ctl_cmd_entry * 11876ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11877{ 11878 const struct ctl_cmd_entry *entry; 11879 int service_action; 11880 11881 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11882 if (entry->flags & CTL_CMD_FLAG_SA5) { 11883 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11884 entry = &((const struct ctl_cmd_entry *) 11885 entry->execute)[service_action]; 11886 } 11887 return (entry); 11888} 11889 11890const struct ctl_cmd_entry * 11891ctl_validate_command(struct ctl_scsiio *ctsio) 11892{ 11893 const struct ctl_cmd_entry *entry; 11894 int i; 11895 uint8_t diff; 11896 11897 entry = ctl_get_cmd_entry(ctsio); 11898 if (entry->execute == NULL) { 11899 ctl_set_invalid_opcode(ctsio); 11900 ctl_done((union ctl_io *)ctsio); 11901 return (NULL); 11902 } 11903 KASSERT(entry->length > 0, 11904 ("Not defined length for command 0x%02x/0x%02x", 11905 ctsio->cdb[0], ctsio->cdb[1])); 11906 for (i = 1; i < entry->length; i++) { 11907 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11908 if (diff == 0) 11909 continue; 11910 ctl_set_invalid_field(ctsio, 11911 /*sks_valid*/ 1, 11912 /*command*/ 1, 11913 /*field*/ i, 11914 /*bit_valid*/ 1, 11915 /*bit*/ fls(diff) - 1); 11916 ctl_done((union ctl_io *)ctsio); 11917 return (NULL); 11918 } 11919 return (entry); 11920} 11921 11922static int 11923ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11924{ 11925 11926 switch (lun_type) { 11927 case T_PROCESSOR: 11928 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11929 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11930 return (0); 11931 break; 11932 case T_DIRECT: 11933 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11934 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11935 return (0); 11936 break; 11937 default: 11938 return (0); 11939 } 11940 return (1); 11941} 11942 11943static int 11944ctl_scsiio(struct ctl_scsiio *ctsio) 11945{ 11946 int retval; 11947 const struct ctl_cmd_entry *entry; 11948 11949 retval = CTL_RETVAL_COMPLETE; 11950 11951 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11952 11953 entry = ctl_get_cmd_entry(ctsio); 11954 11955 /* 11956 * If this I/O has been aborted, just send it straight to 11957 * ctl_done() without executing it. 11958 */ 11959 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11960 ctl_done((union ctl_io *)ctsio); 11961 goto bailout; 11962 } 11963 11964 /* 11965 * All the checks should have been handled by ctl_scsiio_precheck(). 11966 * We should be clear now to just execute the I/O. 11967 */ 11968 retval = entry->execute(ctsio); 11969 11970bailout: 11971 return (retval); 11972} 11973 11974/* 11975 * Since we only implement one target right now, a bus reset simply resets 11976 * our single target. 11977 */ 11978static int 11979ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11980{ 11981 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11982} 11983 11984static int 11985ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11986 ctl_ua_type ua_type) 11987{ 11988 struct ctl_lun *lun; 11989 int retval; 11990 11991 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11992 union ctl_ha_msg msg_info; 11993 11994 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11995 msg_info.hdr.nexus = io->io_hdr.nexus; 11996 if (ua_type==CTL_UA_TARG_RESET) 11997 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11998 else 11999 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12000 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12001 msg_info.hdr.original_sc = NULL; 12002 msg_info.hdr.serializing_sc = NULL; 12003 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12004 (void *)&msg_info, sizeof(msg_info), 0)) { 12005 } 12006 } 12007 retval = 0; 12008 12009 mtx_lock(&ctl_softc->ctl_lock); 12010 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12011 retval += ctl_lun_reset(lun, io, ua_type); 12012 mtx_unlock(&ctl_softc->ctl_lock); 12013 12014 return (retval); 12015} 12016 12017/* 12018 * The LUN should always be set. The I/O is optional, and is used to 12019 * distinguish between I/Os sent by this initiator, and by other 12020 * initiators. We set unit attention for initiators other than this one. 12021 * SAM-3 is vague on this point. It does say that a unit attention should 12022 * be established for other initiators when a LUN is reset (see section 12023 * 5.7.3), but it doesn't specifically say that the unit attention should 12024 * be established for this particular initiator when a LUN is reset. Here 12025 * is the relevant text, from SAM-3 rev 8: 12026 * 12027 * 5.7.2 When a SCSI initiator port aborts its own tasks 12028 * 12029 * When a SCSI initiator port causes its own task(s) to be aborted, no 12030 * notification that the task(s) have been aborted shall be returned to 12031 * the SCSI initiator port other than the completion response for the 12032 * command or task management function action that caused the task(s) to 12033 * be aborted and notification(s) associated with related effects of the 12034 * action (e.g., a reset unit attention condition). 12035 * 12036 * XXX KDM for now, we're setting unit attention for all initiators. 12037 */ 12038static int 12039ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12040{ 12041 union ctl_io *xio; 12042#if 0 12043 uint32_t initindex; 12044#endif 12045 int i; 12046 12047 mtx_lock(&lun->lun_lock); 12048 /* 12049 * Run through the OOA queue and abort each I/O. 12050 */ 12051#if 0 12052 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12053#endif 12054 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12055 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12056 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12057 } 12058 12059 /* 12060 * This version sets unit attention for every 12061 */ 12062#if 0 12063 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12064 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12065 if (initindex == i) 12066 continue; 12067 lun->pending_ua[i] |= ua_type; 12068 } 12069#endif 12070 12071 /* 12072 * A reset (any kind, really) clears reservations established with 12073 * RESERVE/RELEASE. It does not clear reservations established 12074 * with PERSISTENT RESERVE OUT, but we don't support that at the 12075 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12076 * reservations made with the RESERVE/RELEASE commands, because 12077 * those commands are obsolete in SPC-3. 12078 */ 12079 lun->flags &= ~CTL_LUN_RESERVED; 12080 12081 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12082#ifdef CTL_WITH_CA 12083 ctl_clear_mask(lun->have_ca, i); 12084#endif 12085 lun->pending_ua[i] |= ua_type; 12086 } 12087 mtx_unlock(&lun->lun_lock); 12088 12089 return (0); 12090} 12091 12092static void 12093ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12094 int other_sc) 12095{ 12096 union ctl_io *xio; 12097 12098 mtx_assert(&lun->lun_lock, MA_OWNED); 12099 12100 /* 12101 * Run through the OOA queue and attempt to find the given I/O. 12102 * The target port, initiator ID, tag type and tag number have to 12103 * match the values that we got from the initiator. If we have an 12104 * untagged command to abort, simply abort the first untagged command 12105 * we come to. We only allow one untagged command at a time of course. 12106 */ 12107 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12108 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12109 12110 if ((targ_port == UINT32_MAX || 12111 targ_port == xio->io_hdr.nexus.targ_port) && 12112 (init_id == UINT32_MAX || 12113 init_id == xio->io_hdr.nexus.initid.id)) { 12114 if (targ_port != xio->io_hdr.nexus.targ_port || 12115 init_id != xio->io_hdr.nexus.initid.id) 12116 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12117 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12118 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12119 union ctl_ha_msg msg_info; 12120 12121 msg_info.hdr.nexus = xio->io_hdr.nexus; 12122 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12123 msg_info.task.tag_num = xio->scsiio.tag_num; 12124 msg_info.task.tag_type = xio->scsiio.tag_type; 12125 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12126 msg_info.hdr.original_sc = NULL; 12127 msg_info.hdr.serializing_sc = NULL; 12128 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12129 (void *)&msg_info, sizeof(msg_info), 0); 12130 } 12131 } 12132 } 12133} 12134 12135static int 12136ctl_abort_task_set(union ctl_io *io) 12137{ 12138 struct ctl_softc *softc = control_softc; 12139 struct ctl_lun *lun; 12140 uint32_t targ_lun; 12141 12142 /* 12143 * Look up the LUN. 12144 */ 12145 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12146 mtx_lock(&softc->ctl_lock); 12147 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12148 lun = softc->ctl_luns[targ_lun]; 12149 else { 12150 mtx_unlock(&softc->ctl_lock); 12151 return (1); 12152 } 12153 12154 mtx_lock(&lun->lun_lock); 12155 mtx_unlock(&softc->ctl_lock); 12156 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12157 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12158 io->io_hdr.nexus.initid.id, 12159 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12160 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12161 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12162 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12163 } 12164 mtx_unlock(&lun->lun_lock); 12165 return (0); 12166} 12167 12168static int 12169ctl_i_t_nexus_reset(union ctl_io *io) 12170{ 12171 struct ctl_softc *softc = control_softc; 12172 struct ctl_lun *lun; 12173 uint32_t initindex; 12174 12175 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12176 mtx_lock(&softc->ctl_lock); 12177 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12178 mtx_lock(&lun->lun_lock); 12179 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12180 io->io_hdr.nexus.initid.id, 12181 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12182#ifdef CTL_WITH_CA 12183 ctl_clear_mask(lun->have_ca, initindex); 12184#endif 12185 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12186 mtx_unlock(&lun->lun_lock); 12187 } 12188 mtx_unlock(&softc->ctl_lock); 12189 return (0); 12190} 12191 12192static int 12193ctl_abort_task(union ctl_io *io) 12194{ 12195 union ctl_io *xio; 12196 struct ctl_lun *lun; 12197 struct ctl_softc *ctl_softc; 12198#if 0 12199 struct sbuf sb; 12200 char printbuf[128]; 12201#endif 12202 int found; 12203 uint32_t targ_lun; 12204 12205 ctl_softc = control_softc; 12206 found = 0; 12207 12208 /* 12209 * Look up the LUN. 12210 */ 12211 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12212 mtx_lock(&ctl_softc->ctl_lock); 12213 if ((targ_lun < CTL_MAX_LUNS) 12214 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12215 lun = ctl_softc->ctl_luns[targ_lun]; 12216 else { 12217 mtx_unlock(&ctl_softc->ctl_lock); 12218 return (1); 12219 } 12220 12221#if 0 12222 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12223 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12224#endif 12225 12226 mtx_lock(&lun->lun_lock); 12227 mtx_unlock(&ctl_softc->ctl_lock); 12228 /* 12229 * Run through the OOA queue and attempt to find the given I/O. 12230 * The target port, initiator ID, tag type and tag number have to 12231 * match the values that we got from the initiator. If we have an 12232 * untagged command to abort, simply abort the first untagged command 12233 * we come to. We only allow one untagged command at a time of course. 12234 */ 12235#if 0 12236 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12237#endif 12238 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12239 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12240#if 0 12241 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12242 12243 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12244 lun->lun, xio->scsiio.tag_num, 12245 xio->scsiio.tag_type, 12246 (xio->io_hdr.blocked_links.tqe_prev 12247 == NULL) ? "" : " BLOCKED", 12248 (xio->io_hdr.flags & 12249 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12250 (xio->io_hdr.flags & 12251 CTL_FLAG_ABORT) ? " ABORT" : "", 12252 (xio->io_hdr.flags & 12253 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12254 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12255 sbuf_finish(&sb); 12256 printf("%s\n", sbuf_data(&sb)); 12257#endif 12258 12259 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12260 && (xio->io_hdr.nexus.initid.id == 12261 io->io_hdr.nexus.initid.id)) { 12262 /* 12263 * If the abort says that the task is untagged, the 12264 * task in the queue must be untagged. Otherwise, 12265 * we just check to see whether the tag numbers 12266 * match. This is because the QLogic firmware 12267 * doesn't pass back the tag type in an abort 12268 * request. 12269 */ 12270#if 0 12271 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12272 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12273 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12274#endif 12275 /* 12276 * XXX KDM we've got problems with FC, because it 12277 * doesn't send down a tag type with aborts. So we 12278 * can only really go by the tag number... 12279 * This may cause problems with parallel SCSI. 12280 * Need to figure that out!! 12281 */ 12282 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12283 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12284 found = 1; 12285 if ((io->io_hdr.flags & 12286 CTL_FLAG_FROM_OTHER_SC) == 0 && 12287 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12288 union ctl_ha_msg msg_info; 12289 12290 io->io_hdr.flags |= 12291 CTL_FLAG_SENT_2OTHER_SC; 12292 msg_info.hdr.nexus = io->io_hdr.nexus; 12293 msg_info.task.task_action = 12294 CTL_TASK_ABORT_TASK; 12295 msg_info.task.tag_num = 12296 io->taskio.tag_num; 12297 msg_info.task.tag_type = 12298 io->taskio.tag_type; 12299 msg_info.hdr.msg_type = 12300 CTL_MSG_MANAGE_TASKS; 12301 msg_info.hdr.original_sc = NULL; 12302 msg_info.hdr.serializing_sc = NULL; 12303#if 0 12304 printf("Sent Abort to other side\n"); 12305#endif 12306 if (CTL_HA_STATUS_SUCCESS != 12307 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12308 (void *)&msg_info, 12309 sizeof(msg_info), 0)) { 12310 } 12311 } 12312#if 0 12313 printf("ctl_abort_task: found I/O to abort\n"); 12314#endif 12315 break; 12316 } 12317 } 12318 } 12319 mtx_unlock(&lun->lun_lock); 12320 12321 if (found == 0) { 12322 /* 12323 * This isn't really an error. It's entirely possible for 12324 * the abort and command completion to cross on the wire. 12325 * This is more of an informative/diagnostic error. 12326 */ 12327#if 0 12328 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12329 "%d:%d:%d:%d tag %d type %d\n", 12330 io->io_hdr.nexus.initid.id, 12331 io->io_hdr.nexus.targ_port, 12332 io->io_hdr.nexus.targ_target.id, 12333 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12334 io->taskio.tag_type); 12335#endif 12336 } 12337 return (0); 12338} 12339 12340static void 12341ctl_run_task(union ctl_io *io) 12342{ 12343 struct ctl_softc *ctl_softc = control_softc; 12344 int retval = 1; 12345 const char *task_desc; 12346 12347 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12348 12349 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12350 ("ctl_run_task: Unextected io_type %d\n", 12351 io->io_hdr.io_type)); 12352 12353 task_desc = ctl_scsi_task_string(&io->taskio); 12354 if (task_desc != NULL) { 12355#ifdef NEEDTOPORT 12356 csevent_log(CSC_CTL | CSC_SHELF_SW | 12357 CTL_TASK_REPORT, 12358 csevent_LogType_Trace, 12359 csevent_Severity_Information, 12360 csevent_AlertLevel_Green, 12361 csevent_FRU_Firmware, 12362 csevent_FRU_Unknown, 12363 "CTL: received task: %s",task_desc); 12364#endif 12365 } else { 12366#ifdef NEEDTOPORT 12367 csevent_log(CSC_CTL | CSC_SHELF_SW | 12368 CTL_TASK_REPORT, 12369 csevent_LogType_Trace, 12370 csevent_Severity_Information, 12371 csevent_AlertLevel_Green, 12372 csevent_FRU_Firmware, 12373 csevent_FRU_Unknown, 12374 "CTL: received unknown task " 12375 "type: %d (%#x)", 12376 io->taskio.task_action, 12377 io->taskio.task_action); 12378#endif 12379 } 12380 switch (io->taskio.task_action) { 12381 case CTL_TASK_ABORT_TASK: 12382 retval = ctl_abort_task(io); 12383 break; 12384 case CTL_TASK_ABORT_TASK_SET: 12385 case CTL_TASK_CLEAR_TASK_SET: 12386 retval = ctl_abort_task_set(io); 12387 break; 12388 case CTL_TASK_CLEAR_ACA: 12389 break; 12390 case CTL_TASK_I_T_NEXUS_RESET: 12391 retval = ctl_i_t_nexus_reset(io); 12392 break; 12393 case CTL_TASK_LUN_RESET: { 12394 struct ctl_lun *lun; 12395 uint32_t targ_lun; 12396 12397 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12398 mtx_lock(&ctl_softc->ctl_lock); 12399 if ((targ_lun < CTL_MAX_LUNS) 12400 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12401 lun = ctl_softc->ctl_luns[targ_lun]; 12402 else { 12403 mtx_unlock(&ctl_softc->ctl_lock); 12404 retval = 1; 12405 break; 12406 } 12407 12408 if (!(io->io_hdr.flags & 12409 CTL_FLAG_FROM_OTHER_SC)) { 12410 union ctl_ha_msg msg_info; 12411 12412 io->io_hdr.flags |= 12413 CTL_FLAG_SENT_2OTHER_SC; 12414 msg_info.hdr.msg_type = 12415 CTL_MSG_MANAGE_TASKS; 12416 msg_info.hdr.nexus = io->io_hdr.nexus; 12417 msg_info.task.task_action = 12418 CTL_TASK_LUN_RESET; 12419 msg_info.hdr.original_sc = NULL; 12420 msg_info.hdr.serializing_sc = NULL; 12421 if (CTL_HA_STATUS_SUCCESS != 12422 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12423 (void *)&msg_info, 12424 sizeof(msg_info), 0)) { 12425 } 12426 } 12427 12428 retval = ctl_lun_reset(lun, io, 12429 CTL_UA_LUN_RESET); 12430 mtx_unlock(&ctl_softc->ctl_lock); 12431 break; 12432 } 12433 case CTL_TASK_TARGET_RESET: 12434 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12435 break; 12436 case CTL_TASK_BUS_RESET: 12437 retval = ctl_bus_reset(ctl_softc, io); 12438 break; 12439 case CTL_TASK_PORT_LOGIN: 12440 break; 12441 case CTL_TASK_PORT_LOGOUT: 12442 break; 12443 default: 12444 printf("ctl_run_task: got unknown task management event %d\n", 12445 io->taskio.task_action); 12446 break; 12447 } 12448 if (retval == 0) 12449 io->io_hdr.status = CTL_SUCCESS; 12450 else 12451 io->io_hdr.status = CTL_ERROR; 12452 ctl_done(io); 12453} 12454 12455/* 12456 * For HA operation. Handle commands that come in from the other 12457 * controller. 12458 */ 12459static void 12460ctl_handle_isc(union ctl_io *io) 12461{ 12462 int free_io; 12463 struct ctl_lun *lun; 12464 struct ctl_softc *ctl_softc; 12465 uint32_t targ_lun; 12466 12467 ctl_softc = control_softc; 12468 12469 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12470 lun = ctl_softc->ctl_luns[targ_lun]; 12471 12472 switch (io->io_hdr.msg_type) { 12473 case CTL_MSG_SERIALIZE: 12474 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12475 break; 12476 case CTL_MSG_R2R: { 12477 const struct ctl_cmd_entry *entry; 12478 12479 /* 12480 * This is only used in SER_ONLY mode. 12481 */ 12482 free_io = 0; 12483 entry = ctl_get_cmd_entry(&io->scsiio); 12484 mtx_lock(&lun->lun_lock); 12485 if (ctl_scsiio_lun_check(ctl_softc, lun, 12486 entry, (struct ctl_scsiio *)io) != 0) { 12487 mtx_unlock(&lun->lun_lock); 12488 ctl_done(io); 12489 break; 12490 } 12491 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12492 mtx_unlock(&lun->lun_lock); 12493 ctl_enqueue_rtr(io); 12494 break; 12495 } 12496 case CTL_MSG_FINISH_IO: 12497 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12498 free_io = 0; 12499 ctl_done(io); 12500 } else { 12501 free_io = 1; 12502 mtx_lock(&lun->lun_lock); 12503 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12504 ooa_links); 12505 ctl_check_blocked(lun); 12506 mtx_unlock(&lun->lun_lock); 12507 } 12508 break; 12509 case CTL_MSG_PERS_ACTION: 12510 ctl_hndl_per_res_out_on_other_sc( 12511 (union ctl_ha_msg *)&io->presio.pr_msg); 12512 free_io = 1; 12513 break; 12514 case CTL_MSG_BAD_JUJU: 12515 free_io = 0; 12516 ctl_done(io); 12517 break; 12518 case CTL_MSG_DATAMOVE: 12519 /* Only used in XFER mode */ 12520 free_io = 0; 12521 ctl_datamove_remote(io); 12522 break; 12523 case CTL_MSG_DATAMOVE_DONE: 12524 /* Only used in XFER mode */ 12525 free_io = 0; 12526 io->scsiio.be_move_done(io); 12527 break; 12528 default: 12529 free_io = 1; 12530 printf("%s: Invalid message type %d\n", 12531 __func__, io->io_hdr.msg_type); 12532 break; 12533 } 12534 if (free_io) 12535 ctl_free_io(io); 12536 12537} 12538 12539 12540/* 12541 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12542 * there is no match. 12543 */ 12544static ctl_lun_error_pattern 12545ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12546{ 12547 const struct ctl_cmd_entry *entry; 12548 ctl_lun_error_pattern filtered_pattern, pattern; 12549 12550 pattern = desc->error_pattern; 12551 12552 /* 12553 * XXX KDM we need more data passed into this function to match a 12554 * custom pattern, and we actually need to implement custom pattern 12555 * matching. 12556 */ 12557 if (pattern & CTL_LUN_PAT_CMD) 12558 return (CTL_LUN_PAT_CMD); 12559 12560 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12561 return (CTL_LUN_PAT_ANY); 12562 12563 entry = ctl_get_cmd_entry(ctsio); 12564 12565 filtered_pattern = entry->pattern & pattern; 12566 12567 /* 12568 * If the user requested specific flags in the pattern (e.g. 12569 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12570 * flags. 12571 * 12572 * If the user did not specify any flags, it doesn't matter whether 12573 * or not the command supports the flags. 12574 */ 12575 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12576 (pattern & ~CTL_LUN_PAT_MASK)) 12577 return (CTL_LUN_PAT_NONE); 12578 12579 /* 12580 * If the user asked for a range check, see if the requested LBA 12581 * range overlaps with this command's LBA range. 12582 */ 12583 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12584 uint64_t lba1; 12585 uint32_t len1; 12586 ctl_action action; 12587 int retval; 12588 12589 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12590 if (retval != 0) 12591 return (CTL_LUN_PAT_NONE); 12592 12593 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12594 desc->lba_range.len); 12595 /* 12596 * A "pass" means that the LBA ranges don't overlap, so 12597 * this doesn't match the user's range criteria. 12598 */ 12599 if (action == CTL_ACTION_PASS) 12600 return (CTL_LUN_PAT_NONE); 12601 } 12602 12603 return (filtered_pattern); 12604} 12605 12606static void 12607ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12608{ 12609 struct ctl_error_desc *desc, *desc2; 12610 12611 mtx_assert(&lun->lun_lock, MA_OWNED); 12612 12613 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12614 ctl_lun_error_pattern pattern; 12615 /* 12616 * Check to see whether this particular command matches 12617 * the pattern in the descriptor. 12618 */ 12619 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12620 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12621 continue; 12622 12623 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12624 case CTL_LUN_INJ_ABORTED: 12625 ctl_set_aborted(&io->scsiio); 12626 break; 12627 case CTL_LUN_INJ_MEDIUM_ERR: 12628 ctl_set_medium_error(&io->scsiio); 12629 break; 12630 case CTL_LUN_INJ_UA: 12631 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12632 * OCCURRED */ 12633 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12634 break; 12635 case CTL_LUN_INJ_CUSTOM: 12636 /* 12637 * We're assuming the user knows what he is doing. 12638 * Just copy the sense information without doing 12639 * checks. 12640 */ 12641 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12642 ctl_min(sizeof(desc->custom_sense), 12643 sizeof(io->scsiio.sense_data))); 12644 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12645 io->scsiio.sense_len = SSD_FULL_SIZE; 12646 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12647 break; 12648 case CTL_LUN_INJ_NONE: 12649 default: 12650 /* 12651 * If this is an error injection type we don't know 12652 * about, clear the continuous flag (if it is set) 12653 * so it will get deleted below. 12654 */ 12655 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12656 break; 12657 } 12658 /* 12659 * By default, each error injection action is a one-shot 12660 */ 12661 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12662 continue; 12663 12664 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12665 12666 free(desc, M_CTL); 12667 } 12668} 12669 12670#ifdef CTL_IO_DELAY 12671static void 12672ctl_datamove_timer_wakeup(void *arg) 12673{ 12674 union ctl_io *io; 12675 12676 io = (union ctl_io *)arg; 12677 12678 ctl_datamove(io); 12679} 12680#endif /* CTL_IO_DELAY */ 12681 12682void 12683ctl_datamove(union ctl_io *io) 12684{ 12685 void (*fe_datamove)(union ctl_io *io); 12686 12687 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12688 12689 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12690 12691#ifdef CTL_TIME_IO 12692 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12693 char str[256]; 12694 char path_str[64]; 12695 struct sbuf sb; 12696 12697 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12698 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12699 12700 sbuf_cat(&sb, path_str); 12701 switch (io->io_hdr.io_type) { 12702 case CTL_IO_SCSI: 12703 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12704 sbuf_printf(&sb, "\n"); 12705 sbuf_cat(&sb, path_str); 12706 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12707 io->scsiio.tag_num, io->scsiio.tag_type); 12708 break; 12709 case CTL_IO_TASK: 12710 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12711 "Tag Type: %d\n", io->taskio.task_action, 12712 io->taskio.tag_num, io->taskio.tag_type); 12713 break; 12714 default: 12715 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12716 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12717 break; 12718 } 12719 sbuf_cat(&sb, path_str); 12720 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12721 (intmax_t)time_uptime - io->io_hdr.start_time); 12722 sbuf_finish(&sb); 12723 printf("%s", sbuf_data(&sb)); 12724 } 12725#endif /* CTL_TIME_IO */ 12726 12727#ifdef CTL_IO_DELAY 12728 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12729 struct ctl_lun *lun; 12730 12731 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12732 12733 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12734 } else { 12735 struct ctl_lun *lun; 12736 12737 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12738 if ((lun != NULL) 12739 && (lun->delay_info.datamove_delay > 0)) { 12740 struct callout *callout; 12741 12742 callout = (struct callout *)&io->io_hdr.timer_bytes; 12743 callout_init(callout, /*mpsafe*/ 1); 12744 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12745 callout_reset(callout, 12746 lun->delay_info.datamove_delay * hz, 12747 ctl_datamove_timer_wakeup, io); 12748 if (lun->delay_info.datamove_type == 12749 CTL_DELAY_TYPE_ONESHOT) 12750 lun->delay_info.datamove_delay = 0; 12751 return; 12752 } 12753 } 12754#endif 12755 12756 /* 12757 * This command has been aborted. Set the port status, so we fail 12758 * the data move. 12759 */ 12760 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12761 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12762 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12763 io->io_hdr.nexus.targ_port, 12764 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12765 io->io_hdr.nexus.targ_lun); 12766 io->io_hdr.port_status = 31337; 12767 /* 12768 * Note that the backend, in this case, will get the 12769 * callback in its context. In other cases it may get 12770 * called in the frontend's interrupt thread context. 12771 */ 12772 io->scsiio.be_move_done(io); 12773 return; 12774 } 12775 12776 /* 12777 * If we're in XFER mode and this I/O is from the other shelf 12778 * controller, we need to send the DMA to the other side to 12779 * actually transfer the data to/from the host. In serialize only 12780 * mode the transfer happens below CTL and ctl_datamove() is only 12781 * called on the machine that originally received the I/O. 12782 */ 12783 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12784 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12785 union ctl_ha_msg msg; 12786 uint32_t sg_entries_sent; 12787 int do_sg_copy; 12788 int i; 12789 12790 memset(&msg, 0, sizeof(msg)); 12791 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12792 msg.hdr.original_sc = io->io_hdr.original_sc; 12793 msg.hdr.serializing_sc = io; 12794 msg.hdr.nexus = io->io_hdr.nexus; 12795 msg.dt.flags = io->io_hdr.flags; 12796 /* 12797 * We convert everything into a S/G list here. We can't 12798 * pass by reference, only by value between controllers. 12799 * So we can't pass a pointer to the S/G list, only as many 12800 * S/G entries as we can fit in here. If it's possible for 12801 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12802 * then we need to break this up into multiple transfers. 12803 */ 12804 if (io->scsiio.kern_sg_entries == 0) { 12805 msg.dt.kern_sg_entries = 1; 12806 /* 12807 * If this is in cached memory, flush the cache 12808 * before we send the DMA request to the other 12809 * controller. We want to do this in either the 12810 * read or the write case. The read case is 12811 * straightforward. In the write case, we want to 12812 * make sure nothing is in the local cache that 12813 * could overwrite the DMAed data. 12814 */ 12815 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12816 /* 12817 * XXX KDM use bus_dmamap_sync() here. 12818 */ 12819 } 12820 12821 /* 12822 * Convert to a physical address if this is a 12823 * virtual address. 12824 */ 12825 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12826 msg.dt.sg_list[0].addr = 12827 io->scsiio.kern_data_ptr; 12828 } else { 12829 /* 12830 * XXX KDM use busdma here! 12831 */ 12832#if 0 12833 msg.dt.sg_list[0].addr = (void *) 12834 vtophys(io->scsiio.kern_data_ptr); 12835#endif 12836 } 12837 12838 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12839 do_sg_copy = 0; 12840 } else { 12841 struct ctl_sg_entry *sgl; 12842 12843 do_sg_copy = 1; 12844 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12845 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12846 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12847 /* 12848 * XXX KDM use bus_dmamap_sync() here. 12849 */ 12850 } 12851 } 12852 12853 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12854 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12855 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12856 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12857 msg.dt.sg_sequence = 0; 12858 12859 /* 12860 * Loop until we've sent all of the S/G entries. On the 12861 * other end, we'll recompose these S/G entries into one 12862 * contiguous list before passing it to the 12863 */ 12864 for (sg_entries_sent = 0; sg_entries_sent < 12865 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12866 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12867 sizeof(msg.dt.sg_list[0])), 12868 msg.dt.kern_sg_entries - sg_entries_sent); 12869 12870 if (do_sg_copy != 0) { 12871 struct ctl_sg_entry *sgl; 12872 int j; 12873 12874 sgl = (struct ctl_sg_entry *) 12875 io->scsiio.kern_data_ptr; 12876 /* 12877 * If this is in cached memory, flush the cache 12878 * before we send the DMA request to the other 12879 * controller. We want to do this in either 12880 * the * read or the write case. The read 12881 * case is straightforward. In the write 12882 * case, we want to make sure nothing is 12883 * in the local cache that could overwrite 12884 * the DMAed data. 12885 */ 12886 12887 for (i = sg_entries_sent, j = 0; 12888 i < msg.dt.cur_sg_entries; i++, j++) { 12889 if ((io->io_hdr.flags & 12890 CTL_FLAG_NO_DATASYNC) == 0) { 12891 /* 12892 * XXX KDM use bus_dmamap_sync() 12893 */ 12894 } 12895 if ((io->io_hdr.flags & 12896 CTL_FLAG_BUS_ADDR) == 0) { 12897 /* 12898 * XXX KDM use busdma. 12899 */ 12900#if 0 12901 msg.dt.sg_list[j].addr =(void *) 12902 vtophys(sgl[i].addr); 12903#endif 12904 } else { 12905 msg.dt.sg_list[j].addr = 12906 sgl[i].addr; 12907 } 12908 msg.dt.sg_list[j].len = sgl[i].len; 12909 } 12910 } 12911 12912 sg_entries_sent += msg.dt.cur_sg_entries; 12913 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12914 msg.dt.sg_last = 1; 12915 else 12916 msg.dt.sg_last = 0; 12917 12918 /* 12919 * XXX KDM drop and reacquire the lock here? 12920 */ 12921 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12922 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12923 /* 12924 * XXX do something here. 12925 */ 12926 } 12927 12928 msg.dt.sent_sg_entries = sg_entries_sent; 12929 } 12930 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12931 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12932 ctl_failover_io(io, /*have_lock*/ 0); 12933 12934 } else { 12935 12936 /* 12937 * Lookup the fe_datamove() function for this particular 12938 * front end. 12939 */ 12940 fe_datamove = 12941 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12942 12943 fe_datamove(io); 12944 } 12945} 12946 12947static void 12948ctl_send_datamove_done(union ctl_io *io, int have_lock) 12949{ 12950 union ctl_ha_msg msg; 12951 int isc_status; 12952 12953 memset(&msg, 0, sizeof(msg)); 12954 12955 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12956 msg.hdr.original_sc = io; 12957 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12958 msg.hdr.nexus = io->io_hdr.nexus; 12959 msg.hdr.status = io->io_hdr.status; 12960 msg.scsi.tag_num = io->scsiio.tag_num; 12961 msg.scsi.tag_type = io->scsiio.tag_type; 12962 msg.scsi.scsi_status = io->scsiio.scsi_status; 12963 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12964 sizeof(io->scsiio.sense_data)); 12965 msg.scsi.sense_len = io->scsiio.sense_len; 12966 msg.scsi.sense_residual = io->scsiio.sense_residual; 12967 msg.scsi.fetd_status = io->io_hdr.port_status; 12968 msg.scsi.residual = io->scsiio.residual; 12969 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12970 12971 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12972 ctl_failover_io(io, /*have_lock*/ have_lock); 12973 return; 12974 } 12975 12976 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12977 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12978 /* XXX do something if this fails */ 12979 } 12980 12981} 12982 12983/* 12984 * The DMA to the remote side is done, now we need to tell the other side 12985 * we're done so it can continue with its data movement. 12986 */ 12987static void 12988ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12989{ 12990 union ctl_io *io; 12991 12992 io = rq->context; 12993 12994 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12995 printf("%s: ISC DMA write failed with error %d", __func__, 12996 rq->ret); 12997 ctl_set_internal_failure(&io->scsiio, 12998 /*sks_valid*/ 1, 12999 /*retry_count*/ rq->ret); 13000 } 13001 13002 ctl_dt_req_free(rq); 13003 13004 /* 13005 * In this case, we had to malloc the memory locally. Free it. 13006 */ 13007 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13008 int i; 13009 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13010 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13011 } 13012 /* 13013 * The data is in local and remote memory, so now we need to send 13014 * status (good or back) back to the other side. 13015 */ 13016 ctl_send_datamove_done(io, /*have_lock*/ 0); 13017} 13018 13019/* 13020 * We've moved the data from the host/controller into local memory. Now we 13021 * need to push it over to the remote controller's memory. 13022 */ 13023static int 13024ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13025{ 13026 int retval; 13027 13028 retval = 0; 13029 13030 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13031 ctl_datamove_remote_write_cb); 13032 13033 return (retval); 13034} 13035 13036static void 13037ctl_datamove_remote_write(union ctl_io *io) 13038{ 13039 int retval; 13040 void (*fe_datamove)(union ctl_io *io); 13041 13042 /* 13043 * - Get the data from the host/HBA into local memory. 13044 * - DMA memory from the local controller to the remote controller. 13045 * - Send status back to the remote controller. 13046 */ 13047 13048 retval = ctl_datamove_remote_sgl_setup(io); 13049 if (retval != 0) 13050 return; 13051 13052 /* Switch the pointer over so the FETD knows what to do */ 13053 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13054 13055 /* 13056 * Use a custom move done callback, since we need to send completion 13057 * back to the other controller, not to the backend on this side. 13058 */ 13059 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13060 13061 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13062 13063 fe_datamove(io); 13064 13065 return; 13066 13067} 13068 13069static int 13070ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13071{ 13072#if 0 13073 char str[256]; 13074 char path_str[64]; 13075 struct sbuf sb; 13076#endif 13077 13078 /* 13079 * In this case, we had to malloc the memory locally. Free it. 13080 */ 13081 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13082 int i; 13083 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13084 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13085 } 13086 13087#if 0 13088 scsi_path_string(io, path_str, sizeof(path_str)); 13089 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13090 sbuf_cat(&sb, path_str); 13091 scsi_command_string(&io->scsiio, NULL, &sb); 13092 sbuf_printf(&sb, "\n"); 13093 sbuf_cat(&sb, path_str); 13094 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13095 io->scsiio.tag_num, io->scsiio.tag_type); 13096 sbuf_cat(&sb, path_str); 13097 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13098 io->io_hdr.flags, io->io_hdr.status); 13099 sbuf_finish(&sb); 13100 printk("%s", sbuf_data(&sb)); 13101#endif 13102 13103 13104 /* 13105 * The read is done, now we need to send status (good or bad) back 13106 * to the other side. 13107 */ 13108 ctl_send_datamove_done(io, /*have_lock*/ 0); 13109 13110 return (0); 13111} 13112 13113static void 13114ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13115{ 13116 union ctl_io *io; 13117 void (*fe_datamove)(union ctl_io *io); 13118 13119 io = rq->context; 13120 13121 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13122 printf("%s: ISC DMA read failed with error %d", __func__, 13123 rq->ret); 13124 ctl_set_internal_failure(&io->scsiio, 13125 /*sks_valid*/ 1, 13126 /*retry_count*/ rq->ret); 13127 } 13128 13129 ctl_dt_req_free(rq); 13130 13131 /* Switch the pointer over so the FETD knows what to do */ 13132 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13133 13134 /* 13135 * Use a custom move done callback, since we need to send completion 13136 * back to the other controller, not to the backend on this side. 13137 */ 13138 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13139 13140 /* XXX KDM add checks like the ones in ctl_datamove? */ 13141 13142 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13143 13144 fe_datamove(io); 13145} 13146 13147static int 13148ctl_datamove_remote_sgl_setup(union ctl_io *io) 13149{ 13150 struct ctl_sg_entry *local_sglist, *remote_sglist; 13151 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13152 struct ctl_softc *softc; 13153 int retval; 13154 int i; 13155 13156 retval = 0; 13157 softc = control_softc; 13158 13159 local_sglist = io->io_hdr.local_sglist; 13160 local_dma_sglist = io->io_hdr.local_dma_sglist; 13161 remote_sglist = io->io_hdr.remote_sglist; 13162 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13163 13164 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13165 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13166 local_sglist[i].len = remote_sglist[i].len; 13167 13168 /* 13169 * XXX Detect the situation where the RS-level I/O 13170 * redirector on the other side has already read the 13171 * data off of the AOR RS on this side, and 13172 * transferred it to remote (mirror) memory on the 13173 * other side. Since we already have the data in 13174 * memory here, we just need to use it. 13175 * 13176 * XXX KDM this can probably be removed once we 13177 * get the cache device code in and take the 13178 * current AOR implementation out. 13179 */ 13180#ifdef NEEDTOPORT 13181 if ((remote_sglist[i].addr >= 13182 (void *)vtophys(softc->mirr->addr)) 13183 && (remote_sglist[i].addr < 13184 ((void *)vtophys(softc->mirr->addr) + 13185 CacheMirrorOffset))) { 13186 local_sglist[i].addr = remote_sglist[i].addr - 13187 CacheMirrorOffset; 13188 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13189 CTL_FLAG_DATA_IN) 13190 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13191 } else { 13192 local_sglist[i].addr = remote_sglist[i].addr + 13193 CacheMirrorOffset; 13194 } 13195#endif 13196#if 0 13197 printf("%s: local %p, remote %p, len %d\n", 13198 __func__, local_sglist[i].addr, 13199 remote_sglist[i].addr, local_sglist[i].len); 13200#endif 13201 } 13202 } else { 13203 uint32_t len_to_go; 13204 13205 /* 13206 * In this case, we don't have automatically allocated 13207 * memory for this I/O on this controller. This typically 13208 * happens with internal CTL I/O -- e.g. inquiry, mode 13209 * sense, etc. Anything coming from RAIDCore will have 13210 * a mirror area available. 13211 */ 13212 len_to_go = io->scsiio.kern_data_len; 13213 13214 /* 13215 * Clear the no datasync flag, we have to use malloced 13216 * buffers. 13217 */ 13218 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13219 13220 /* 13221 * The difficult thing here is that the size of the various 13222 * S/G segments may be different than the size from the 13223 * remote controller. That'll make it harder when DMAing 13224 * the data back to the other side. 13225 */ 13226 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13227 sizeof(io->io_hdr.remote_sglist[0])) && 13228 (len_to_go > 0); i++) { 13229 local_sglist[i].len = ctl_min(len_to_go, 131072); 13230 CTL_SIZE_8B(local_dma_sglist[i].len, 13231 local_sglist[i].len); 13232 local_sglist[i].addr = 13233 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13234 13235 local_dma_sglist[i].addr = local_sglist[i].addr; 13236 13237 if (local_sglist[i].addr == NULL) { 13238 int j; 13239 13240 printf("malloc failed for %zd bytes!", 13241 local_dma_sglist[i].len); 13242 for (j = 0; j < i; j++) { 13243 free(local_sglist[j].addr, M_CTL); 13244 } 13245 ctl_set_internal_failure(&io->scsiio, 13246 /*sks_valid*/ 1, 13247 /*retry_count*/ 4857); 13248 retval = 1; 13249 goto bailout_error; 13250 13251 } 13252 /* XXX KDM do we need a sync here? */ 13253 13254 len_to_go -= local_sglist[i].len; 13255 } 13256 /* 13257 * Reset the number of S/G entries accordingly. The 13258 * original number of S/G entries is available in 13259 * rem_sg_entries. 13260 */ 13261 io->scsiio.kern_sg_entries = i; 13262 13263#if 0 13264 printf("%s: kern_sg_entries = %d\n", __func__, 13265 io->scsiio.kern_sg_entries); 13266 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13267 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13268 local_sglist[i].addr, local_sglist[i].len, 13269 local_dma_sglist[i].len); 13270#endif 13271 } 13272 13273 13274 return (retval); 13275 13276bailout_error: 13277 13278 ctl_send_datamove_done(io, /*have_lock*/ 0); 13279 13280 return (retval); 13281} 13282 13283static int 13284ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13285 ctl_ha_dt_cb callback) 13286{ 13287 struct ctl_ha_dt_req *rq; 13288 struct ctl_sg_entry *remote_sglist, *local_sglist; 13289 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13290 uint32_t local_used, remote_used, total_used; 13291 int retval; 13292 int i, j; 13293 13294 retval = 0; 13295 13296 rq = ctl_dt_req_alloc(); 13297 13298 /* 13299 * If we failed to allocate the request, and if the DMA didn't fail 13300 * anyway, set busy status. This is just a resource allocation 13301 * failure. 13302 */ 13303 if ((rq == NULL) 13304 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13305 ctl_set_busy(&io->scsiio); 13306 13307 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13308 13309 if (rq != NULL) 13310 ctl_dt_req_free(rq); 13311 13312 /* 13313 * The data move failed. We need to return status back 13314 * to the other controller. No point in trying to DMA 13315 * data to the remote controller. 13316 */ 13317 13318 ctl_send_datamove_done(io, /*have_lock*/ 0); 13319 13320 retval = 1; 13321 13322 goto bailout; 13323 } 13324 13325 local_sglist = io->io_hdr.local_sglist; 13326 local_dma_sglist = io->io_hdr.local_dma_sglist; 13327 remote_sglist = io->io_hdr.remote_sglist; 13328 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13329 local_used = 0; 13330 remote_used = 0; 13331 total_used = 0; 13332 13333 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13334 rq->ret = CTL_HA_STATUS_SUCCESS; 13335 rq->context = io; 13336 callback(rq); 13337 goto bailout; 13338 } 13339 13340 /* 13341 * Pull/push the data over the wire from/to the other controller. 13342 * This takes into account the possibility that the local and 13343 * remote sglists may not be identical in terms of the size of 13344 * the elements and the number of elements. 13345 * 13346 * One fundamental assumption here is that the length allocated for 13347 * both the local and remote sglists is identical. Otherwise, we've 13348 * essentially got a coding error of some sort. 13349 */ 13350 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13351 int isc_ret; 13352 uint32_t cur_len, dma_length; 13353 uint8_t *tmp_ptr; 13354 13355 rq->id = CTL_HA_DATA_CTL; 13356 rq->command = command; 13357 rq->context = io; 13358 13359 /* 13360 * Both pointers should be aligned. But it is possible 13361 * that the allocation length is not. They should both 13362 * also have enough slack left over at the end, though, 13363 * to round up to the next 8 byte boundary. 13364 */ 13365 cur_len = ctl_min(local_sglist[i].len - local_used, 13366 remote_sglist[j].len - remote_used); 13367 13368 /* 13369 * In this case, we have a size issue and need to decrease 13370 * the size, except in the case where we actually have less 13371 * than 8 bytes left. In that case, we need to increase 13372 * the DMA length to get the last bit. 13373 */ 13374 if ((cur_len & 0x7) != 0) { 13375 if (cur_len > 0x7) { 13376 cur_len = cur_len - (cur_len & 0x7); 13377 dma_length = cur_len; 13378 } else { 13379 CTL_SIZE_8B(dma_length, cur_len); 13380 } 13381 13382 } else 13383 dma_length = cur_len; 13384 13385 /* 13386 * If we had to allocate memory for this I/O, instead of using 13387 * the non-cached mirror memory, we'll need to flush the cache 13388 * before trying to DMA to the other controller. 13389 * 13390 * We could end up doing this multiple times for the same 13391 * segment if we have a larger local segment than remote 13392 * segment. That shouldn't be an issue. 13393 */ 13394 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13395 /* 13396 * XXX KDM use bus_dmamap_sync() here. 13397 */ 13398 } 13399 13400 rq->size = dma_length; 13401 13402 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13403 tmp_ptr += local_used; 13404 13405 /* Use physical addresses when talking to ISC hardware */ 13406 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13407 /* XXX KDM use busdma */ 13408#if 0 13409 rq->local = vtophys(tmp_ptr); 13410#endif 13411 } else 13412 rq->local = tmp_ptr; 13413 13414 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13415 tmp_ptr += remote_used; 13416 rq->remote = tmp_ptr; 13417 13418 rq->callback = NULL; 13419 13420 local_used += cur_len; 13421 if (local_used >= local_sglist[i].len) { 13422 i++; 13423 local_used = 0; 13424 } 13425 13426 remote_used += cur_len; 13427 if (remote_used >= remote_sglist[j].len) { 13428 j++; 13429 remote_used = 0; 13430 } 13431 total_used += cur_len; 13432 13433 if (total_used >= io->scsiio.kern_data_len) 13434 rq->callback = callback; 13435 13436 if ((rq->size & 0x7) != 0) { 13437 printf("%s: warning: size %d is not on 8b boundary\n", 13438 __func__, rq->size); 13439 } 13440 if (((uintptr_t)rq->local & 0x7) != 0) { 13441 printf("%s: warning: local %p not on 8b boundary\n", 13442 __func__, rq->local); 13443 } 13444 if (((uintptr_t)rq->remote & 0x7) != 0) { 13445 printf("%s: warning: remote %p not on 8b boundary\n", 13446 __func__, rq->local); 13447 } 13448#if 0 13449 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13450 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13451 rq->local, rq->remote, rq->size); 13452#endif 13453 13454 isc_ret = ctl_dt_single(rq); 13455 if (isc_ret == CTL_HA_STATUS_WAIT) 13456 continue; 13457 13458 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13459 rq->ret = CTL_HA_STATUS_SUCCESS; 13460 } else { 13461 rq->ret = isc_ret; 13462 } 13463 callback(rq); 13464 goto bailout; 13465 } 13466 13467bailout: 13468 return (retval); 13469 13470} 13471 13472static void 13473ctl_datamove_remote_read(union ctl_io *io) 13474{ 13475 int retval; 13476 int i; 13477 13478 /* 13479 * This will send an error to the other controller in the case of a 13480 * failure. 13481 */ 13482 retval = ctl_datamove_remote_sgl_setup(io); 13483 if (retval != 0) 13484 return; 13485 13486 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13487 ctl_datamove_remote_read_cb); 13488 if ((retval != 0) 13489 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13490 /* 13491 * Make sure we free memory if there was an error.. The 13492 * ctl_datamove_remote_xfer() function will send the 13493 * datamove done message, or call the callback with an 13494 * error if there is a problem. 13495 */ 13496 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13497 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13498 } 13499 13500 return; 13501} 13502 13503/* 13504 * Process a datamove request from the other controller. This is used for 13505 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13506 * first. Once that is complete, the data gets DMAed into the remote 13507 * controller's memory. For reads, we DMA from the remote controller's 13508 * memory into our memory first, and then move it out to the FETD. 13509 */ 13510static void 13511ctl_datamove_remote(union ctl_io *io) 13512{ 13513 struct ctl_softc *softc; 13514 13515 softc = control_softc; 13516 13517 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13518 13519 /* 13520 * Note that we look for an aborted I/O here, but don't do some of 13521 * the other checks that ctl_datamove() normally does. 13522 * We don't need to run the datamove delay code, since that should 13523 * have been done if need be on the other controller. 13524 */ 13525 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13526 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13527 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13528 io->io_hdr.nexus.targ_port, 13529 io->io_hdr.nexus.targ_target.id, 13530 io->io_hdr.nexus.targ_lun); 13531 io->io_hdr.port_status = 31338; 13532 ctl_send_datamove_done(io, /*have_lock*/ 0); 13533 return; 13534 } 13535 13536 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13537 ctl_datamove_remote_write(io); 13538 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13539 ctl_datamove_remote_read(io); 13540 } else { 13541 union ctl_ha_msg msg; 13542 struct scsi_sense_data *sense; 13543 uint8_t sks[3]; 13544 int retry_count; 13545 13546 memset(&msg, 0, sizeof(msg)); 13547 13548 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13549 msg.hdr.status = CTL_SCSI_ERROR; 13550 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13551 13552 retry_count = 4243; 13553 13554 sense = &msg.scsi.sense_data; 13555 sks[0] = SSD_SCS_VALID; 13556 sks[1] = (retry_count >> 8) & 0xff; 13557 sks[2] = retry_count & 0xff; 13558 13559 /* "Internal target failure" */ 13560 scsi_set_sense_data(sense, 13561 /*sense_format*/ SSD_TYPE_NONE, 13562 /*current_error*/ 1, 13563 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13564 /*asc*/ 0x44, 13565 /*ascq*/ 0x00, 13566 /*type*/ SSD_ELEM_SKS, 13567 /*size*/ sizeof(sks), 13568 /*data*/ sks, 13569 SSD_ELEM_NONE); 13570 13571 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13572 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13573 ctl_failover_io(io, /*have_lock*/ 1); 13574 return; 13575 } 13576 13577 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13578 CTL_HA_STATUS_SUCCESS) { 13579 /* XXX KDM what to do if this fails? */ 13580 } 13581 return; 13582 } 13583 13584} 13585 13586static int 13587ctl_process_done(union ctl_io *io) 13588{ 13589 struct ctl_lun *lun; 13590 struct ctl_softc *ctl_softc; 13591 void (*fe_done)(union ctl_io *io); 13592 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13593 13594 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13595 13596 fe_done = 13597 control_softc->ctl_ports[targ_port]->fe_done; 13598 13599#ifdef CTL_TIME_IO 13600 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13601 char str[256]; 13602 char path_str[64]; 13603 struct sbuf sb; 13604 13605 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13606 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13607 13608 sbuf_cat(&sb, path_str); 13609 switch (io->io_hdr.io_type) { 13610 case CTL_IO_SCSI: 13611 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13612 sbuf_printf(&sb, "\n"); 13613 sbuf_cat(&sb, path_str); 13614 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13615 io->scsiio.tag_num, io->scsiio.tag_type); 13616 break; 13617 case CTL_IO_TASK: 13618 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13619 "Tag Type: %d\n", io->taskio.task_action, 13620 io->taskio.tag_num, io->taskio.tag_type); 13621 break; 13622 default: 13623 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13624 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13625 break; 13626 } 13627 sbuf_cat(&sb, path_str); 13628 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13629 (intmax_t)time_uptime - io->io_hdr.start_time); 13630 sbuf_finish(&sb); 13631 printf("%s", sbuf_data(&sb)); 13632 } 13633#endif /* CTL_TIME_IO */ 13634 13635 switch (io->io_hdr.io_type) { 13636 case CTL_IO_SCSI: 13637 break; 13638 case CTL_IO_TASK: 13639 if (bootverbose || verbose > 0) 13640 ctl_io_error_print(io, NULL); 13641 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13642 ctl_free_io(io); 13643 else 13644 fe_done(io); 13645 return (CTL_RETVAL_COMPLETE); 13646 break; 13647 default: 13648 printf("ctl_process_done: invalid io type %d\n", 13649 io->io_hdr.io_type); 13650 panic("ctl_process_done: invalid io type %d\n", 13651 io->io_hdr.io_type); 13652 break; /* NOTREACHED */ 13653 } 13654 13655 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13656 if (lun == NULL) { 13657 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13658 io->io_hdr.nexus.targ_mapped_lun)); 13659 fe_done(io); 13660 goto bailout; 13661 } 13662 ctl_softc = lun->ctl_softc; 13663 13664 mtx_lock(&lun->lun_lock); 13665 13666 /* 13667 * Check to see if we have any errors to inject here. We only 13668 * inject errors for commands that don't already have errors set. 13669 */ 13670 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13671 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13672 ctl_inject_error(lun, io); 13673 13674 /* 13675 * XXX KDM how do we treat commands that aren't completed 13676 * successfully? 13677 * 13678 * XXX KDM should we also track I/O latency? 13679 */ 13680 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13681 io->io_hdr.io_type == CTL_IO_SCSI) { 13682#ifdef CTL_TIME_IO 13683 struct bintime cur_bt; 13684#endif 13685 int type; 13686 13687 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13688 CTL_FLAG_DATA_IN) 13689 type = CTL_STATS_READ; 13690 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13691 CTL_FLAG_DATA_OUT) 13692 type = CTL_STATS_WRITE; 13693 else 13694 type = CTL_STATS_NO_IO; 13695 13696 lun->stats.ports[targ_port].bytes[type] += 13697 io->scsiio.kern_total_len; 13698 lun->stats.ports[targ_port].operations[type]++; 13699#ifdef CTL_TIME_IO 13700 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13701 &io->io_hdr.dma_bt); 13702 lun->stats.ports[targ_port].num_dmas[type] += 13703 io->io_hdr.num_dmas; 13704 getbintime(&cur_bt); 13705 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13706 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13707#endif 13708 } 13709 13710 /* 13711 * Remove this from the OOA queue. 13712 */ 13713 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13714 13715 /* 13716 * Run through the blocked queue on this LUN and see if anything 13717 * has become unblocked, now that this transaction is done. 13718 */ 13719 ctl_check_blocked(lun); 13720 13721 /* 13722 * If the LUN has been invalidated, free it if there is nothing 13723 * left on its OOA queue. 13724 */ 13725 if ((lun->flags & CTL_LUN_INVALID) 13726 && TAILQ_EMPTY(&lun->ooa_queue)) { 13727 mtx_unlock(&lun->lun_lock); 13728 mtx_lock(&ctl_softc->ctl_lock); 13729 ctl_free_lun(lun); 13730 mtx_unlock(&ctl_softc->ctl_lock); 13731 } else 13732 mtx_unlock(&lun->lun_lock); 13733 13734 /* 13735 * If this command has been aborted, make sure we set the status 13736 * properly. The FETD is responsible for freeing the I/O and doing 13737 * whatever it needs to do to clean up its state. 13738 */ 13739 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13740 ctl_set_task_aborted(&io->scsiio); 13741 13742 /* 13743 * We print out status for every task management command. For SCSI 13744 * commands, we filter out any unit attention errors; they happen 13745 * on every boot, and would clutter up the log. Note: task 13746 * management commands aren't printed here, they are printed above, 13747 * since they should never even make it down here. 13748 */ 13749 switch (io->io_hdr.io_type) { 13750 case CTL_IO_SCSI: { 13751 int error_code, sense_key, asc, ascq; 13752 13753 sense_key = 0; 13754 13755 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13756 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13757 /* 13758 * Since this is just for printing, no need to 13759 * show errors here. 13760 */ 13761 scsi_extract_sense_len(&io->scsiio.sense_data, 13762 io->scsiio.sense_len, 13763 &error_code, 13764 &sense_key, 13765 &asc, 13766 &ascq, 13767 /*show_errors*/ 0); 13768 } 13769 13770 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13771 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13772 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13773 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13774 13775 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13776 ctl_softc->skipped_prints++; 13777 } else { 13778 uint32_t skipped_prints; 13779 13780 skipped_prints = ctl_softc->skipped_prints; 13781 13782 ctl_softc->skipped_prints = 0; 13783 ctl_softc->last_print_jiffies = time_uptime; 13784 13785 if (skipped_prints > 0) { 13786#ifdef NEEDTOPORT 13787 csevent_log(CSC_CTL | CSC_SHELF_SW | 13788 CTL_ERROR_REPORT, 13789 csevent_LogType_Trace, 13790 csevent_Severity_Information, 13791 csevent_AlertLevel_Green, 13792 csevent_FRU_Firmware, 13793 csevent_FRU_Unknown, 13794 "High CTL error volume, %d prints " 13795 "skipped", skipped_prints); 13796#endif 13797 } 13798 if (bootverbose || verbose > 0) 13799 ctl_io_error_print(io, NULL); 13800 } 13801 } 13802 break; 13803 } 13804 case CTL_IO_TASK: 13805 if (bootverbose || verbose > 0) 13806 ctl_io_error_print(io, NULL); 13807 break; 13808 default: 13809 break; 13810 } 13811 13812 /* 13813 * Tell the FETD or the other shelf controller we're done with this 13814 * command. Note that only SCSI commands get to this point. Task 13815 * management commands are completed above. 13816 * 13817 * We only send status to the other controller if we're in XFER 13818 * mode. In SER_ONLY mode, the I/O is done on the controller that 13819 * received the I/O (from CTL's perspective), and so the status is 13820 * generated there. 13821 * 13822 * XXX KDM if we hold the lock here, we could cause a deadlock 13823 * if the frontend comes back in in this context to queue 13824 * something. 13825 */ 13826 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13827 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13828 union ctl_ha_msg msg; 13829 13830 memset(&msg, 0, sizeof(msg)); 13831 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13832 msg.hdr.original_sc = io->io_hdr.original_sc; 13833 msg.hdr.nexus = io->io_hdr.nexus; 13834 msg.hdr.status = io->io_hdr.status; 13835 msg.scsi.scsi_status = io->scsiio.scsi_status; 13836 msg.scsi.tag_num = io->scsiio.tag_num; 13837 msg.scsi.tag_type = io->scsiio.tag_type; 13838 msg.scsi.sense_len = io->scsiio.sense_len; 13839 msg.scsi.sense_residual = io->scsiio.sense_residual; 13840 msg.scsi.residual = io->scsiio.residual; 13841 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13842 sizeof(io->scsiio.sense_data)); 13843 /* 13844 * We copy this whether or not this is an I/O-related 13845 * command. Otherwise, we'd have to go and check to see 13846 * whether it's a read/write command, and it really isn't 13847 * worth it. 13848 */ 13849 memcpy(&msg.scsi.lbalen, 13850 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13851 sizeof(msg.scsi.lbalen)); 13852 13853 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13854 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13855 /* XXX do something here */ 13856 } 13857 13858 ctl_free_io(io); 13859 } else 13860 fe_done(io); 13861 13862bailout: 13863 13864 return (CTL_RETVAL_COMPLETE); 13865} 13866 13867#ifdef CTL_WITH_CA 13868/* 13869 * Front end should call this if it doesn't do autosense. When the request 13870 * sense comes back in from the initiator, we'll dequeue this and send it. 13871 */ 13872int 13873ctl_queue_sense(union ctl_io *io) 13874{ 13875 struct ctl_lun *lun; 13876 struct ctl_softc *ctl_softc; 13877 uint32_t initidx, targ_lun; 13878 13879 ctl_softc = control_softc; 13880 13881 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13882 13883 /* 13884 * LUN lookup will likely move to the ctl_work_thread() once we 13885 * have our new queueing infrastructure (that doesn't put things on 13886 * a per-LUN queue initially). That is so that we can handle 13887 * things like an INQUIRY to a LUN that we don't have enabled. We 13888 * can't deal with that right now. 13889 */ 13890 mtx_lock(&ctl_softc->ctl_lock); 13891 13892 /* 13893 * If we don't have a LUN for this, just toss the sense 13894 * information. 13895 */ 13896 targ_lun = io->io_hdr.nexus.targ_lun; 13897 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13898 if ((targ_lun < CTL_MAX_LUNS) 13899 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13900 lun = ctl_softc->ctl_luns[targ_lun]; 13901 else 13902 goto bailout; 13903 13904 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13905 13906 mtx_lock(&lun->lun_lock); 13907 /* 13908 * Already have CA set for this LUN...toss the sense information. 13909 */ 13910 if (ctl_is_set(lun->have_ca, initidx)) { 13911 mtx_unlock(&lun->lun_lock); 13912 goto bailout; 13913 } 13914 13915 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13916 ctl_min(sizeof(lun->pending_sense[initidx]), 13917 sizeof(io->scsiio.sense_data))); 13918 ctl_set_mask(lun->have_ca, initidx); 13919 mtx_unlock(&lun->lun_lock); 13920 13921bailout: 13922 mtx_unlock(&ctl_softc->ctl_lock); 13923 13924 ctl_free_io(io); 13925 13926 return (CTL_RETVAL_COMPLETE); 13927} 13928#endif 13929 13930/* 13931 * Primary command inlet from frontend ports. All SCSI and task I/O 13932 * requests must go through this function. 13933 */ 13934int 13935ctl_queue(union ctl_io *io) 13936{ 13937 struct ctl_softc *ctl_softc; 13938 13939 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13940 13941 ctl_softc = control_softc; 13942 13943#ifdef CTL_TIME_IO 13944 io->io_hdr.start_time = time_uptime; 13945 getbintime(&io->io_hdr.start_bt); 13946#endif /* CTL_TIME_IO */ 13947 13948 /* Map FE-specific LUN ID into global one. */ 13949 io->io_hdr.nexus.targ_mapped_lun = 13950 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13951 13952 switch (io->io_hdr.io_type) { 13953 case CTL_IO_SCSI: 13954 case CTL_IO_TASK: 13955 ctl_enqueue_incoming(io); 13956 break; 13957 default: 13958 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13959 return (EINVAL); 13960 } 13961 13962 return (CTL_RETVAL_COMPLETE); 13963} 13964 13965#ifdef CTL_IO_DELAY 13966static void 13967ctl_done_timer_wakeup(void *arg) 13968{ 13969 union ctl_io *io; 13970 13971 io = (union ctl_io *)arg; 13972 ctl_done(io); 13973} 13974#endif /* CTL_IO_DELAY */ 13975 13976void 13977ctl_done(union ctl_io *io) 13978{ 13979 struct ctl_softc *ctl_softc; 13980 13981 ctl_softc = control_softc; 13982 13983 /* 13984 * Enable this to catch duplicate completion issues. 13985 */ 13986#if 0 13987 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13988 printf("%s: type %d msg %d cdb %x iptl: " 13989 "%d:%d:%d:%d tag 0x%04x " 13990 "flag %#x status %x\n", 13991 __func__, 13992 io->io_hdr.io_type, 13993 io->io_hdr.msg_type, 13994 io->scsiio.cdb[0], 13995 io->io_hdr.nexus.initid.id, 13996 io->io_hdr.nexus.targ_port, 13997 io->io_hdr.nexus.targ_target.id, 13998 io->io_hdr.nexus.targ_lun, 13999 (io->io_hdr.io_type == 14000 CTL_IO_TASK) ? 14001 io->taskio.tag_num : 14002 io->scsiio.tag_num, 14003 io->io_hdr.flags, 14004 io->io_hdr.status); 14005 } else 14006 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14007#endif 14008 14009 /* 14010 * This is an internal copy of an I/O, and should not go through 14011 * the normal done processing logic. 14012 */ 14013 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14014 return; 14015 14016 /* 14017 * We need to send a msg to the serializing shelf to finish the IO 14018 * as well. We don't send a finish message to the other shelf if 14019 * this is a task management command. Task management commands 14020 * aren't serialized in the OOA queue, but rather just executed on 14021 * both shelf controllers for commands that originated on that 14022 * controller. 14023 */ 14024 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14025 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14026 union ctl_ha_msg msg_io; 14027 14028 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14029 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14030 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14031 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14032 } 14033 /* continue on to finish IO */ 14034 } 14035#ifdef CTL_IO_DELAY 14036 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14037 struct ctl_lun *lun; 14038 14039 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14040 14041 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14042 } else { 14043 struct ctl_lun *lun; 14044 14045 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14046 14047 if ((lun != NULL) 14048 && (lun->delay_info.done_delay > 0)) { 14049 struct callout *callout; 14050 14051 callout = (struct callout *)&io->io_hdr.timer_bytes; 14052 callout_init(callout, /*mpsafe*/ 1); 14053 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14054 callout_reset(callout, 14055 lun->delay_info.done_delay * hz, 14056 ctl_done_timer_wakeup, io); 14057 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14058 lun->delay_info.done_delay = 0; 14059 return; 14060 } 14061 } 14062#endif /* CTL_IO_DELAY */ 14063 14064 ctl_enqueue_done(io); 14065} 14066 14067int 14068ctl_isc(struct ctl_scsiio *ctsio) 14069{ 14070 struct ctl_lun *lun; 14071 int retval; 14072 14073 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14074 14075 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14076 14077 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14078 14079 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14080 14081 return (retval); 14082} 14083 14084 14085static void 14086ctl_work_thread(void *arg) 14087{ 14088 struct ctl_thread *thr = (struct ctl_thread *)arg; 14089 struct ctl_softc *softc = thr->ctl_softc; 14090 union ctl_io *io; 14091 int retval; 14092 14093 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14094 14095 for (;;) { 14096 retval = 0; 14097 14098 /* 14099 * We handle the queues in this order: 14100 * - ISC 14101 * - done queue (to free up resources, unblock other commands) 14102 * - RtR queue 14103 * - incoming queue 14104 * 14105 * If those queues are empty, we break out of the loop and 14106 * go to sleep. 14107 */ 14108 mtx_lock(&thr->queue_lock); 14109 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14110 if (io != NULL) { 14111 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14112 mtx_unlock(&thr->queue_lock); 14113 ctl_handle_isc(io); 14114 continue; 14115 } 14116 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14117 if (io != NULL) { 14118 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14119 /* clear any blocked commands, call fe_done */ 14120 mtx_unlock(&thr->queue_lock); 14121 retval = ctl_process_done(io); 14122 continue; 14123 } 14124 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14125 if (io != NULL) { 14126 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14127 mtx_unlock(&thr->queue_lock); 14128 if (io->io_hdr.io_type == CTL_IO_TASK) 14129 ctl_run_task(io); 14130 else 14131 ctl_scsiio_precheck(softc, &io->scsiio); 14132 continue; 14133 } 14134 if (!ctl_pause_rtr) { 14135 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14136 if (io != NULL) { 14137 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14138 mtx_unlock(&thr->queue_lock); 14139 retval = ctl_scsiio(&io->scsiio); 14140 if (retval != CTL_RETVAL_COMPLETE) 14141 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14142 continue; 14143 } 14144 } 14145 14146 /* Sleep until we have something to do. */ 14147 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14148 } 14149} 14150 14151static void 14152ctl_lun_thread(void *arg) 14153{ 14154 struct ctl_softc *softc = (struct ctl_softc *)arg; 14155 struct ctl_be_lun *be_lun; 14156 int retval; 14157 14158 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14159 14160 for (;;) { 14161 retval = 0; 14162 mtx_lock(&softc->ctl_lock); 14163 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14164 if (be_lun != NULL) { 14165 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14166 mtx_unlock(&softc->ctl_lock); 14167 ctl_create_lun(be_lun); 14168 continue; 14169 } 14170 14171 /* Sleep until we have something to do. */ 14172 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14173 PDROP | PRIBIO, "-", 0); 14174 } 14175} 14176 14177static void 14178ctl_enqueue_incoming(union ctl_io *io) 14179{ 14180 struct ctl_softc *softc = control_softc; 14181 struct ctl_thread *thr; 14182 u_int idx; 14183 14184 idx = (io->io_hdr.nexus.targ_port * 127 + 14185 io->io_hdr.nexus.initid.id) % worker_threads; 14186 thr = &softc->threads[idx]; 14187 mtx_lock(&thr->queue_lock); 14188 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14189 mtx_unlock(&thr->queue_lock); 14190 wakeup(thr); 14191} 14192 14193static void 14194ctl_enqueue_rtr(union ctl_io *io) 14195{ 14196 struct ctl_softc *softc = control_softc; 14197 struct ctl_thread *thr; 14198 14199 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14200 mtx_lock(&thr->queue_lock); 14201 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14202 mtx_unlock(&thr->queue_lock); 14203 wakeup(thr); 14204} 14205 14206static void 14207ctl_enqueue_done(union ctl_io *io) 14208{ 14209 struct ctl_softc *softc = control_softc; 14210 struct ctl_thread *thr; 14211 14212 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14213 mtx_lock(&thr->queue_lock); 14214 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14215 mtx_unlock(&thr->queue_lock); 14216 wakeup(thr); 14217} 14218 14219static void 14220ctl_enqueue_isc(union ctl_io *io) 14221{ 14222 struct ctl_softc *softc = control_softc; 14223 struct ctl_thread *thr; 14224 14225 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14226 mtx_lock(&thr->queue_lock); 14227 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14228 mtx_unlock(&thr->queue_lock); 14229 wakeup(thr); 14230} 14231 14232/* Initialization and failover */ 14233 14234void 14235ctl_init_isc_msg(void) 14236{ 14237 printf("CTL: Still calling this thing\n"); 14238} 14239 14240/* 14241 * Init component 14242 * Initializes component into configuration defined by bootMode 14243 * (see hasc-sv.c) 14244 * returns hasc_Status: 14245 * OK 14246 * ERROR - fatal error 14247 */ 14248static ctl_ha_comp_status 14249ctl_isc_init(struct ctl_ha_component *c) 14250{ 14251 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14252 14253 c->status = ret; 14254 return ret; 14255} 14256 14257/* Start component 14258 * Starts component in state requested. If component starts successfully, 14259 * it must set its own state to the requestrd state 14260 * When requested state is HASC_STATE_HA, the component may refine it 14261 * by adding _SLAVE or _MASTER flags. 14262 * Currently allowed state transitions are: 14263 * UNKNOWN->HA - initial startup 14264 * UNKNOWN->SINGLE - initial startup when no parter detected 14265 * HA->SINGLE - failover 14266 * returns ctl_ha_comp_status: 14267 * OK - component successfully started in requested state 14268 * FAILED - could not start the requested state, failover may 14269 * be possible 14270 * ERROR - fatal error detected, no future startup possible 14271 */ 14272static ctl_ha_comp_status 14273ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14274{ 14275 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14276 14277 printf("%s: go\n", __func__); 14278 14279 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14280 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14281 ctl_is_single = 0; 14282 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14283 != CTL_HA_STATUS_SUCCESS) { 14284 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14285 ret = CTL_HA_COMP_STATUS_ERROR; 14286 } 14287 } else if (CTL_HA_STATE_IS_HA(c->state) 14288 && CTL_HA_STATE_IS_SINGLE(state)){ 14289 // HA->SINGLE transition 14290 ctl_failover(); 14291 ctl_is_single = 1; 14292 } else { 14293 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14294 c->state, state); 14295 ret = CTL_HA_COMP_STATUS_ERROR; 14296 } 14297 if (CTL_HA_STATE_IS_SINGLE(state)) 14298 ctl_is_single = 1; 14299 14300 c->state = state; 14301 c->status = ret; 14302 return ret; 14303} 14304 14305/* 14306 * Quiesce component 14307 * The component must clear any error conditions (set status to OK) and 14308 * prepare itself to another Start call 14309 * returns ctl_ha_comp_status: 14310 * OK 14311 * ERROR 14312 */ 14313static ctl_ha_comp_status 14314ctl_isc_quiesce(struct ctl_ha_component *c) 14315{ 14316 int ret = CTL_HA_COMP_STATUS_OK; 14317 14318 ctl_pause_rtr = 1; 14319 c->status = ret; 14320 return ret; 14321} 14322 14323struct ctl_ha_component ctl_ha_component_ctlisc = 14324{ 14325 .name = "CTL ISC", 14326 .state = CTL_HA_STATE_UNKNOWN, 14327 .init = ctl_isc_init, 14328 .start = ctl_isc_start, 14329 .quiesce = ctl_isc_quiesce 14330}; 14331 14332/* 14333 * vim: ts=8 14334 */ 14335