ctl.c revision 272629
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 272629 2014-10-06 13:18:28Z 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, uint64_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 const char *value; 4101 4102 memcpy(&lun->mode_pages.index, page_index_template, 4103 sizeof(page_index_template)); 4104 4105 softc = lun->ctl_softc; 4106 4107 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4108 4109 page_index = &lun->mode_pages.index[i]; 4110 /* 4111 * If this is a disk-only mode page, there's no point in 4112 * setting it up. For some pages, we have to have some 4113 * basic information about the disk in order to calculate the 4114 * mode page data. 4115 */ 4116 if ((lun->be_lun->lun_type != T_DIRECT) 4117 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4118 continue; 4119 4120 switch (page_index->page_code & SMPH_PC_MASK) { 4121 case SMS_FORMAT_DEVICE_PAGE: { 4122 struct scsi_format_page *format_page; 4123 4124 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4125 panic("subpage is incorrect!"); 4126 4127 /* 4128 * Sectors per track are set above. Bytes per 4129 * sector need to be set here on a per-LUN basis. 4130 */ 4131 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4132 &format_page_default, 4133 sizeof(format_page_default)); 4134 memcpy(&lun->mode_pages.format_page[ 4135 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4136 sizeof(format_page_changeable)); 4137 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4138 &format_page_default, 4139 sizeof(format_page_default)); 4140 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4141 &format_page_default, 4142 sizeof(format_page_default)); 4143 4144 format_page = &lun->mode_pages.format_page[ 4145 CTL_PAGE_CURRENT]; 4146 scsi_ulto2b(lun->be_lun->blocksize, 4147 format_page->bytes_per_sector); 4148 4149 format_page = &lun->mode_pages.format_page[ 4150 CTL_PAGE_DEFAULT]; 4151 scsi_ulto2b(lun->be_lun->blocksize, 4152 format_page->bytes_per_sector); 4153 4154 format_page = &lun->mode_pages.format_page[ 4155 CTL_PAGE_SAVED]; 4156 scsi_ulto2b(lun->be_lun->blocksize, 4157 format_page->bytes_per_sector); 4158 4159 page_index->page_data = 4160 (uint8_t *)lun->mode_pages.format_page; 4161 break; 4162 } 4163 case SMS_RIGID_DISK_PAGE: { 4164 struct scsi_rigid_disk_page *rigid_disk_page; 4165 uint32_t sectors_per_cylinder; 4166 uint64_t cylinders; 4167#ifndef __XSCALE__ 4168 int shift; 4169#endif /* !__XSCALE__ */ 4170 4171 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4172 panic("invalid subpage value %d", 4173 page_index->subpage); 4174 4175 /* 4176 * Rotation rate and sectors per track are set 4177 * above. We calculate the cylinders here based on 4178 * capacity. Due to the number of heads and 4179 * sectors per track we're using, smaller arrays 4180 * may turn out to have 0 cylinders. Linux and 4181 * FreeBSD don't pay attention to these mode pages 4182 * to figure out capacity, but Solaris does. It 4183 * seems to deal with 0 cylinders just fine, and 4184 * works out a fake geometry based on the capacity. 4185 */ 4186 memcpy(&lun->mode_pages.rigid_disk_page[ 4187 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4188 sizeof(rigid_disk_page_default)); 4189 memcpy(&lun->mode_pages.rigid_disk_page[ 4190 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4191 sizeof(rigid_disk_page_changeable)); 4192 memcpy(&lun->mode_pages.rigid_disk_page[ 4193 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4194 sizeof(rigid_disk_page_default)); 4195 memcpy(&lun->mode_pages.rigid_disk_page[ 4196 CTL_PAGE_SAVED], &rigid_disk_page_default, 4197 sizeof(rigid_disk_page_default)); 4198 4199 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4200 CTL_DEFAULT_HEADS; 4201 4202 /* 4203 * The divide method here will be more accurate, 4204 * probably, but results in floating point being 4205 * used in the kernel on i386 (__udivdi3()). On the 4206 * XScale, though, __udivdi3() is implemented in 4207 * software. 4208 * 4209 * The shift method for cylinder calculation is 4210 * accurate if sectors_per_cylinder is a power of 4211 * 2. Otherwise it might be slightly off -- you 4212 * might have a bit of a truncation problem. 4213 */ 4214#ifdef __XSCALE__ 4215 cylinders = (lun->be_lun->maxlba + 1) / 4216 sectors_per_cylinder; 4217#else 4218 for (shift = 31; shift > 0; shift--) { 4219 if (sectors_per_cylinder & (1 << shift)) 4220 break; 4221 } 4222 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4223#endif 4224 4225 /* 4226 * We've basically got 3 bytes, or 24 bits for the 4227 * cylinder size in the mode page. If we're over, 4228 * just round down to 2^24. 4229 */ 4230 if (cylinders > 0xffffff) 4231 cylinders = 0xffffff; 4232 4233 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4234 CTL_PAGE_CURRENT]; 4235 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4236 4237 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4238 CTL_PAGE_DEFAULT]; 4239 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4240 4241 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4242 CTL_PAGE_SAVED]; 4243 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4244 4245 page_index->page_data = 4246 (uint8_t *)lun->mode_pages.rigid_disk_page; 4247 break; 4248 } 4249 case SMS_CACHING_PAGE: { 4250 struct scsi_caching_page *caching_page; 4251 4252 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4253 panic("invalid subpage value %d", 4254 page_index->subpage); 4255 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4256 &caching_page_default, 4257 sizeof(caching_page_default)); 4258 memcpy(&lun->mode_pages.caching_page[ 4259 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4260 sizeof(caching_page_changeable)); 4261 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4262 &caching_page_default, 4263 sizeof(caching_page_default)); 4264 caching_page = &lun->mode_pages.caching_page[ 4265 CTL_PAGE_SAVED]; 4266 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4267 if (value != NULL && strcmp(value, "off") == 0) 4268 caching_page->flags1 &= ~SCP_WCE; 4269 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4270 if (value != NULL && strcmp(value, "off") == 0) 4271 caching_page->flags1 |= SCP_RCD; 4272 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4273 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4274 sizeof(caching_page_default)); 4275 page_index->page_data = 4276 (uint8_t *)lun->mode_pages.caching_page; 4277 break; 4278 } 4279 case SMS_CONTROL_MODE_PAGE: { 4280 4281 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4282 panic("invalid subpage value %d", 4283 page_index->subpage); 4284 4285 /* 4286 * Defaults should be okay here, no calculations 4287 * needed. 4288 */ 4289 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4290 &control_page_default, 4291 sizeof(control_page_default)); 4292 memcpy(&lun->mode_pages.control_page[ 4293 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4294 sizeof(control_page_changeable)); 4295 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4296 &control_page_default, 4297 sizeof(control_page_default)); 4298 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4299 &control_page_default, 4300 sizeof(control_page_default)); 4301 page_index->page_data = 4302 (uint8_t *)lun->mode_pages.control_page; 4303 break; 4304 4305 } 4306 case SMS_VENDOR_SPECIFIC_PAGE:{ 4307 switch (page_index->subpage) { 4308 case PWR_SUBPAGE_CODE: { 4309 struct copan_power_subpage *current_page, 4310 *saved_page; 4311 4312 memcpy(&lun->mode_pages.power_subpage[ 4313 CTL_PAGE_CURRENT], 4314 &power_page_default, 4315 sizeof(power_page_default)); 4316 memcpy(&lun->mode_pages.power_subpage[ 4317 CTL_PAGE_CHANGEABLE], 4318 &power_page_changeable, 4319 sizeof(power_page_changeable)); 4320 memcpy(&lun->mode_pages.power_subpage[ 4321 CTL_PAGE_DEFAULT], 4322 &power_page_default, 4323 sizeof(power_page_default)); 4324 memcpy(&lun->mode_pages.power_subpage[ 4325 CTL_PAGE_SAVED], 4326 &power_page_default, 4327 sizeof(power_page_default)); 4328 page_index->page_data = 4329 (uint8_t *)lun->mode_pages.power_subpage; 4330 4331 current_page = (struct copan_power_subpage *) 4332 (page_index->page_data + 4333 (page_index->page_len * 4334 CTL_PAGE_CURRENT)); 4335 saved_page = (struct copan_power_subpage *) 4336 (page_index->page_data + 4337 (page_index->page_len * 4338 CTL_PAGE_SAVED)); 4339 break; 4340 } 4341 case APS_SUBPAGE_CODE: { 4342 struct copan_aps_subpage *current_page, 4343 *saved_page; 4344 4345 // This gets set multiple times but 4346 // it should always be the same. It's 4347 // only done during init so who cares. 4348 index_to_aps_page = i; 4349 4350 memcpy(&lun->mode_pages.aps_subpage[ 4351 CTL_PAGE_CURRENT], 4352 &aps_page_default, 4353 sizeof(aps_page_default)); 4354 memcpy(&lun->mode_pages.aps_subpage[ 4355 CTL_PAGE_CHANGEABLE], 4356 &aps_page_changeable, 4357 sizeof(aps_page_changeable)); 4358 memcpy(&lun->mode_pages.aps_subpage[ 4359 CTL_PAGE_DEFAULT], 4360 &aps_page_default, 4361 sizeof(aps_page_default)); 4362 memcpy(&lun->mode_pages.aps_subpage[ 4363 CTL_PAGE_SAVED], 4364 &aps_page_default, 4365 sizeof(aps_page_default)); 4366 page_index->page_data = 4367 (uint8_t *)lun->mode_pages.aps_subpage; 4368 4369 current_page = (struct copan_aps_subpage *) 4370 (page_index->page_data + 4371 (page_index->page_len * 4372 CTL_PAGE_CURRENT)); 4373 saved_page = (struct copan_aps_subpage *) 4374 (page_index->page_data + 4375 (page_index->page_len * 4376 CTL_PAGE_SAVED)); 4377 break; 4378 } 4379 case DBGCNF_SUBPAGE_CODE: { 4380 struct copan_debugconf_subpage *current_page, 4381 *saved_page; 4382 4383 memcpy(&lun->mode_pages.debugconf_subpage[ 4384 CTL_PAGE_CURRENT], 4385 &debugconf_page_default, 4386 sizeof(debugconf_page_default)); 4387 memcpy(&lun->mode_pages.debugconf_subpage[ 4388 CTL_PAGE_CHANGEABLE], 4389 &debugconf_page_changeable, 4390 sizeof(debugconf_page_changeable)); 4391 memcpy(&lun->mode_pages.debugconf_subpage[ 4392 CTL_PAGE_DEFAULT], 4393 &debugconf_page_default, 4394 sizeof(debugconf_page_default)); 4395 memcpy(&lun->mode_pages.debugconf_subpage[ 4396 CTL_PAGE_SAVED], 4397 &debugconf_page_default, 4398 sizeof(debugconf_page_default)); 4399 page_index->page_data = 4400 (uint8_t *)lun->mode_pages.debugconf_subpage; 4401 4402 current_page = (struct copan_debugconf_subpage *) 4403 (page_index->page_data + 4404 (page_index->page_len * 4405 CTL_PAGE_CURRENT)); 4406 saved_page = (struct copan_debugconf_subpage *) 4407 (page_index->page_data + 4408 (page_index->page_len * 4409 CTL_PAGE_SAVED)); 4410 break; 4411 } 4412 default: 4413 panic("invalid subpage value %d", 4414 page_index->subpage); 4415 break; 4416 } 4417 break; 4418 } 4419 default: 4420 panic("invalid page value %d", 4421 page_index->page_code & SMPH_PC_MASK); 4422 break; 4423 } 4424 } 4425 4426 return (CTL_RETVAL_COMPLETE); 4427} 4428 4429/* 4430 * LUN allocation. 4431 * 4432 * Requirements: 4433 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4434 * wants us to allocate the LUN and he can block. 4435 * - ctl_softc is always set 4436 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4437 * 4438 * Returns 0 for success, non-zero (errno) for failure. 4439 */ 4440static int 4441ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4442 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4443{ 4444 struct ctl_lun *nlun, *lun; 4445 struct ctl_port *port; 4446 struct scsi_vpd_id_descriptor *desc; 4447 struct scsi_vpd_id_t10 *t10id; 4448 const char *eui, *naa, *scsiname, *vendor; 4449 int lun_number, i, lun_malloced; 4450 int devidlen, idlen1, idlen2 = 0, len; 4451 4452 if (be_lun == NULL) 4453 return (EINVAL); 4454 4455 /* 4456 * We currently only support Direct Access or Processor LUN types. 4457 */ 4458 switch (be_lun->lun_type) { 4459 case T_DIRECT: 4460 break; 4461 case T_PROCESSOR: 4462 break; 4463 case T_SEQUENTIAL: 4464 case T_CHANGER: 4465 default: 4466 be_lun->lun_config_status(be_lun->be_lun, 4467 CTL_LUN_CONFIG_FAILURE); 4468 break; 4469 } 4470 if (ctl_lun == NULL) { 4471 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4472 lun_malloced = 1; 4473 } else { 4474 lun_malloced = 0; 4475 lun = ctl_lun; 4476 } 4477 4478 memset(lun, 0, sizeof(*lun)); 4479 if (lun_malloced) 4480 lun->flags = CTL_LUN_MALLOCED; 4481 4482 /* Generate LUN ID. */ 4483 devidlen = max(CTL_DEVID_MIN_LEN, 4484 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4485 idlen1 = sizeof(*t10id) + devidlen; 4486 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4487 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4488 if (scsiname != NULL) { 4489 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4490 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4491 } 4492 eui = ctl_get_opt(&be_lun->options, "eui"); 4493 if (eui != NULL) { 4494 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4495 } 4496 naa = ctl_get_opt(&be_lun->options, "naa"); 4497 if (naa != NULL) { 4498 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4499 } 4500 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4501 M_CTL, M_WAITOK | M_ZERO); 4502 lun->lun_devid->len = len; 4503 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4504 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4505 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4506 desc->length = idlen1; 4507 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4508 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4509 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4510 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4511 } else { 4512 strncpy(t10id->vendor, vendor, 4513 min(sizeof(t10id->vendor), strlen(vendor))); 4514 } 4515 strncpy((char *)t10id->vendor_spec_id, 4516 (char *)be_lun->device_id, devidlen); 4517 if (scsiname != NULL) { 4518 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4519 desc->length); 4520 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4521 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4522 SVPD_ID_TYPE_SCSI_NAME; 4523 desc->length = idlen2; 4524 strlcpy(desc->identifier, scsiname, idlen2); 4525 } 4526 if (eui != NULL) { 4527 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4528 desc->length); 4529 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4530 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4531 SVPD_ID_TYPE_EUI64; 4532 desc->length = 8; 4533 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4534 } 4535 if (naa != NULL) { 4536 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4537 desc->length); 4538 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4539 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4540 SVPD_ID_TYPE_NAA; 4541 desc->length = 8; 4542 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4543 } 4544 4545 mtx_lock(&ctl_softc->ctl_lock); 4546 /* 4547 * See if the caller requested a particular LUN number. If so, see 4548 * if it is available. Otherwise, allocate the first available LUN. 4549 */ 4550 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4551 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4552 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4553 mtx_unlock(&ctl_softc->ctl_lock); 4554 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4555 printf("ctl: requested LUN ID %d is higher " 4556 "than CTL_MAX_LUNS - 1 (%d)\n", 4557 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4558 } else { 4559 /* 4560 * XXX KDM return an error, or just assign 4561 * another LUN ID in this case?? 4562 */ 4563 printf("ctl: requested LUN ID %d is already " 4564 "in use\n", be_lun->req_lun_id); 4565 } 4566 if (lun->flags & CTL_LUN_MALLOCED) 4567 free(lun, M_CTL); 4568 be_lun->lun_config_status(be_lun->be_lun, 4569 CTL_LUN_CONFIG_FAILURE); 4570 return (ENOSPC); 4571 } 4572 lun_number = be_lun->req_lun_id; 4573 } else { 4574 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4575 if (lun_number == -1) { 4576 mtx_unlock(&ctl_softc->ctl_lock); 4577 printf("ctl: can't allocate LUN on target %ju, out of " 4578 "LUNs\n", (uintmax_t)target_id.id); 4579 if (lun->flags & CTL_LUN_MALLOCED) 4580 free(lun, M_CTL); 4581 be_lun->lun_config_status(be_lun->be_lun, 4582 CTL_LUN_CONFIG_FAILURE); 4583 return (ENOSPC); 4584 } 4585 } 4586 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4587 4588 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4589 lun->target = target_id; 4590 lun->lun = lun_number; 4591 lun->be_lun = be_lun; 4592 /* 4593 * The processor LUN is always enabled. Disk LUNs come on line 4594 * disabled, and must be enabled by the backend. 4595 */ 4596 lun->flags |= CTL_LUN_DISABLED; 4597 lun->backend = be_lun->be; 4598 be_lun->ctl_lun = lun; 4599 be_lun->lun_id = lun_number; 4600 atomic_add_int(&be_lun->be->num_luns, 1); 4601 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4602 lun->flags |= CTL_LUN_STOPPED; 4603 4604 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4605 lun->flags |= CTL_LUN_INOPERABLE; 4606 4607 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4608 lun->flags |= CTL_LUN_PRIMARY_SC; 4609 4610 lun->ctl_softc = ctl_softc; 4611 TAILQ_INIT(&lun->ooa_queue); 4612 TAILQ_INIT(&lun->blocked_queue); 4613 STAILQ_INIT(&lun->error_list); 4614 ctl_tpc_lun_init(lun); 4615 4616 /* 4617 * Initialize the mode page index. 4618 */ 4619 ctl_init_page_index(lun); 4620 4621 /* 4622 * Set the poweron UA for all initiators on this LUN only. 4623 */ 4624 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4625 lun->pending_ua[i] = CTL_UA_POWERON; 4626 4627 /* 4628 * Now, before we insert this lun on the lun list, set the lun 4629 * inventory changed UA for all other luns. 4630 */ 4631 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4632 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4633 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4634 } 4635 } 4636 4637 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4638 4639 ctl_softc->ctl_luns[lun_number] = lun; 4640 4641 ctl_softc->num_luns++; 4642 4643 /* Setup statistics gathering */ 4644 lun->stats.device_type = be_lun->lun_type; 4645 lun->stats.lun_number = lun_number; 4646 if (lun->stats.device_type == T_DIRECT) 4647 lun->stats.blocksize = be_lun->blocksize; 4648 else 4649 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4650 for (i = 0;i < CTL_MAX_PORTS;i++) 4651 lun->stats.ports[i].targ_port = i; 4652 4653 mtx_unlock(&ctl_softc->ctl_lock); 4654 4655 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4656 4657 /* 4658 * Run through each registered FETD and bring it online if it isn't 4659 * already. Enable the target ID if it hasn't been enabled, and 4660 * enable this particular LUN. 4661 */ 4662 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4663 int retval; 4664 4665 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4666 if (retval != 0) { 4667 printf("ctl_alloc_lun: FETD %s port %d returned error " 4668 "%d for lun_enable on target %ju lun %d\n", 4669 port->port_name, port->targ_port, retval, 4670 (uintmax_t)target_id.id, lun_number); 4671 } else 4672 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4673 } 4674 return (0); 4675} 4676 4677/* 4678 * Delete a LUN. 4679 * Assumptions: 4680 * - LUN has already been marked invalid and any pending I/O has been taken 4681 * care of. 4682 */ 4683static int 4684ctl_free_lun(struct ctl_lun *lun) 4685{ 4686 struct ctl_softc *softc; 4687#if 0 4688 struct ctl_port *port; 4689#endif 4690 struct ctl_lun *nlun; 4691 int i; 4692 4693 softc = lun->ctl_softc; 4694 4695 mtx_assert(&softc->ctl_lock, MA_OWNED); 4696 4697 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4698 4699 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4700 4701 softc->ctl_luns[lun->lun] = NULL; 4702 4703 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4704 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4705 4706 softc->num_luns--; 4707 4708 /* 4709 * XXX KDM this scheme only works for a single target/multiple LUN 4710 * setup. It needs to be revamped for a multiple target scheme. 4711 * 4712 * XXX KDM this results in port->lun_disable() getting called twice, 4713 * once when ctl_disable_lun() is called, and a second time here. 4714 * We really need to re-think the LUN disable semantics. There 4715 * should probably be several steps/levels to LUN removal: 4716 * - disable 4717 * - invalidate 4718 * - free 4719 * 4720 * Right now we only have a disable method when communicating to 4721 * the front end ports, at least for individual LUNs. 4722 */ 4723#if 0 4724 STAILQ_FOREACH(port, &softc->port_list, links) { 4725 int retval; 4726 4727 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4728 lun->lun); 4729 if (retval != 0) { 4730 printf("ctl_free_lun: FETD %s port %d returned error " 4731 "%d for lun_disable on target %ju lun %jd\n", 4732 port->port_name, port->targ_port, retval, 4733 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4734 } 4735 4736 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4737 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4738 4739 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4740 if (retval != 0) { 4741 printf("ctl_free_lun: FETD %s port %d " 4742 "returned error %d for targ_disable on " 4743 "target %ju\n", port->port_name, 4744 port->targ_port, retval, 4745 (uintmax_t)lun->target.id); 4746 } else 4747 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4748 4749 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4750 continue; 4751 4752#if 0 4753 port->port_offline(port->onoff_arg); 4754 port->status &= ~CTL_PORT_STATUS_ONLINE; 4755#endif 4756 } 4757 } 4758#endif 4759 4760 /* 4761 * Tell the backend to free resources, if this LUN has a backend. 4762 */ 4763 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4764 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4765 4766 ctl_tpc_lun_shutdown(lun); 4767 mtx_destroy(&lun->lun_lock); 4768 free(lun->lun_devid, M_CTL); 4769 if (lun->flags & CTL_LUN_MALLOCED) 4770 free(lun, M_CTL); 4771 4772 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4773 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4774 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4775 } 4776 } 4777 4778 return (0); 4779} 4780 4781static void 4782ctl_create_lun(struct ctl_be_lun *be_lun) 4783{ 4784 struct ctl_softc *ctl_softc; 4785 4786 ctl_softc = control_softc; 4787 4788 /* 4789 * ctl_alloc_lun() should handle all potential failure cases. 4790 */ 4791 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4792} 4793 4794int 4795ctl_add_lun(struct ctl_be_lun *be_lun) 4796{ 4797 struct ctl_softc *ctl_softc = control_softc; 4798 4799 mtx_lock(&ctl_softc->ctl_lock); 4800 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4801 mtx_unlock(&ctl_softc->ctl_lock); 4802 wakeup(&ctl_softc->pending_lun_queue); 4803 4804 return (0); 4805} 4806 4807int 4808ctl_enable_lun(struct ctl_be_lun *be_lun) 4809{ 4810 struct ctl_softc *ctl_softc; 4811 struct ctl_port *port, *nport; 4812 struct ctl_lun *lun; 4813 int retval; 4814 4815 ctl_softc = control_softc; 4816 4817 lun = (struct ctl_lun *)be_lun->ctl_lun; 4818 4819 mtx_lock(&ctl_softc->ctl_lock); 4820 mtx_lock(&lun->lun_lock); 4821 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4822 /* 4823 * eh? Why did we get called if the LUN is already 4824 * enabled? 4825 */ 4826 mtx_unlock(&lun->lun_lock); 4827 mtx_unlock(&ctl_softc->ctl_lock); 4828 return (0); 4829 } 4830 lun->flags &= ~CTL_LUN_DISABLED; 4831 mtx_unlock(&lun->lun_lock); 4832 4833 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4834 nport = STAILQ_NEXT(port, links); 4835 4836 /* 4837 * Drop the lock while we call the FETD's enable routine. 4838 * This can lead to a callback into CTL (at least in the 4839 * case of the internal initiator frontend. 4840 */ 4841 mtx_unlock(&ctl_softc->ctl_lock); 4842 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4843 mtx_lock(&ctl_softc->ctl_lock); 4844 if (retval != 0) { 4845 printf("%s: FETD %s port %d returned error " 4846 "%d for lun_enable on target %ju lun %jd\n", 4847 __func__, port->port_name, port->targ_port, retval, 4848 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4849 } 4850#if 0 4851 else { 4852 /* NOTE: TODO: why does lun enable affect port status? */ 4853 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4854 } 4855#endif 4856 } 4857 4858 mtx_unlock(&ctl_softc->ctl_lock); 4859 4860 return (0); 4861} 4862 4863int 4864ctl_disable_lun(struct ctl_be_lun *be_lun) 4865{ 4866 struct ctl_softc *ctl_softc; 4867 struct ctl_port *port; 4868 struct ctl_lun *lun; 4869 int retval; 4870 4871 ctl_softc = control_softc; 4872 4873 lun = (struct ctl_lun *)be_lun->ctl_lun; 4874 4875 mtx_lock(&ctl_softc->ctl_lock); 4876 mtx_lock(&lun->lun_lock); 4877 if (lun->flags & CTL_LUN_DISABLED) { 4878 mtx_unlock(&lun->lun_lock); 4879 mtx_unlock(&ctl_softc->ctl_lock); 4880 return (0); 4881 } 4882 lun->flags |= CTL_LUN_DISABLED; 4883 mtx_unlock(&lun->lun_lock); 4884 4885 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4886 mtx_unlock(&ctl_softc->ctl_lock); 4887 /* 4888 * Drop the lock before we call the frontend's disable 4889 * routine, to avoid lock order reversals. 4890 * 4891 * XXX KDM what happens if the frontend list changes while 4892 * we're traversing it? It's unlikely, but should be handled. 4893 */ 4894 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4895 lun->lun); 4896 mtx_lock(&ctl_softc->ctl_lock); 4897 if (retval != 0) { 4898 printf("ctl_alloc_lun: FETD %s port %d returned error " 4899 "%d for lun_disable on target %ju lun %jd\n", 4900 port->port_name, port->targ_port, retval, 4901 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4902 } 4903 } 4904 4905 mtx_unlock(&ctl_softc->ctl_lock); 4906 4907 return (0); 4908} 4909 4910int 4911ctl_start_lun(struct ctl_be_lun *be_lun) 4912{ 4913 struct ctl_softc *ctl_softc; 4914 struct ctl_lun *lun; 4915 4916 ctl_softc = control_softc; 4917 4918 lun = (struct ctl_lun *)be_lun->ctl_lun; 4919 4920 mtx_lock(&lun->lun_lock); 4921 lun->flags &= ~CTL_LUN_STOPPED; 4922 mtx_unlock(&lun->lun_lock); 4923 4924 return (0); 4925} 4926 4927int 4928ctl_stop_lun(struct ctl_be_lun *be_lun) 4929{ 4930 struct ctl_softc *ctl_softc; 4931 struct ctl_lun *lun; 4932 4933 ctl_softc = control_softc; 4934 4935 lun = (struct ctl_lun *)be_lun->ctl_lun; 4936 4937 mtx_lock(&lun->lun_lock); 4938 lun->flags |= CTL_LUN_STOPPED; 4939 mtx_unlock(&lun->lun_lock); 4940 4941 return (0); 4942} 4943 4944int 4945ctl_lun_offline(struct ctl_be_lun *be_lun) 4946{ 4947 struct ctl_softc *ctl_softc; 4948 struct ctl_lun *lun; 4949 4950 ctl_softc = control_softc; 4951 4952 lun = (struct ctl_lun *)be_lun->ctl_lun; 4953 4954 mtx_lock(&lun->lun_lock); 4955 lun->flags |= CTL_LUN_OFFLINE; 4956 mtx_unlock(&lun->lun_lock); 4957 4958 return (0); 4959} 4960 4961int 4962ctl_lun_online(struct ctl_be_lun *be_lun) 4963{ 4964 struct ctl_softc *ctl_softc; 4965 struct ctl_lun *lun; 4966 4967 ctl_softc = control_softc; 4968 4969 lun = (struct ctl_lun *)be_lun->ctl_lun; 4970 4971 mtx_lock(&lun->lun_lock); 4972 lun->flags &= ~CTL_LUN_OFFLINE; 4973 mtx_unlock(&lun->lun_lock); 4974 4975 return (0); 4976} 4977 4978int 4979ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4980{ 4981 struct ctl_softc *ctl_softc; 4982 struct ctl_lun *lun; 4983 4984 ctl_softc = control_softc; 4985 4986 lun = (struct ctl_lun *)be_lun->ctl_lun; 4987 4988 mtx_lock(&lun->lun_lock); 4989 4990 /* 4991 * The LUN needs to be disabled before it can be marked invalid. 4992 */ 4993 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4994 mtx_unlock(&lun->lun_lock); 4995 return (-1); 4996 } 4997 /* 4998 * Mark the LUN invalid. 4999 */ 5000 lun->flags |= CTL_LUN_INVALID; 5001 5002 /* 5003 * If there is nothing in the OOA queue, go ahead and free the LUN. 5004 * If we have something in the OOA queue, we'll free it when the 5005 * last I/O completes. 5006 */ 5007 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5008 mtx_unlock(&lun->lun_lock); 5009 mtx_lock(&ctl_softc->ctl_lock); 5010 ctl_free_lun(lun); 5011 mtx_unlock(&ctl_softc->ctl_lock); 5012 } else 5013 mtx_unlock(&lun->lun_lock); 5014 5015 return (0); 5016} 5017 5018int 5019ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5020{ 5021 struct ctl_softc *ctl_softc; 5022 struct ctl_lun *lun; 5023 5024 ctl_softc = control_softc; 5025 lun = (struct ctl_lun *)be_lun->ctl_lun; 5026 5027 mtx_lock(&lun->lun_lock); 5028 lun->flags |= CTL_LUN_INOPERABLE; 5029 mtx_unlock(&lun->lun_lock); 5030 5031 return (0); 5032} 5033 5034int 5035ctl_lun_operable(struct ctl_be_lun *be_lun) 5036{ 5037 struct ctl_softc *ctl_softc; 5038 struct ctl_lun *lun; 5039 5040 ctl_softc = control_softc; 5041 lun = (struct ctl_lun *)be_lun->ctl_lun; 5042 5043 mtx_lock(&lun->lun_lock); 5044 lun->flags &= ~CTL_LUN_INOPERABLE; 5045 mtx_unlock(&lun->lun_lock); 5046 5047 return (0); 5048} 5049 5050int 5051ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5052 int lock) 5053{ 5054 struct ctl_softc *softc; 5055 struct ctl_lun *lun; 5056 struct copan_aps_subpage *current_sp; 5057 struct ctl_page_index *page_index; 5058 int i; 5059 5060 softc = control_softc; 5061 5062 mtx_lock(&softc->ctl_lock); 5063 5064 lun = (struct ctl_lun *)be_lun->ctl_lun; 5065 mtx_lock(&lun->lun_lock); 5066 5067 page_index = NULL; 5068 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5069 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5070 APS_PAGE_CODE) 5071 continue; 5072 5073 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5074 continue; 5075 page_index = &lun->mode_pages.index[i]; 5076 } 5077 5078 if (page_index == NULL) { 5079 mtx_unlock(&lun->lun_lock); 5080 mtx_unlock(&softc->ctl_lock); 5081 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5082 (uintmax_t)lun->lun); 5083 return (1); 5084 } 5085#if 0 5086 if ((softc->aps_locked_lun != 0) 5087 && (softc->aps_locked_lun != lun->lun)) { 5088 printf("%s: attempt to lock LUN %llu when %llu is already " 5089 "locked\n"); 5090 mtx_unlock(&lun->lun_lock); 5091 mtx_unlock(&softc->ctl_lock); 5092 return (1); 5093 } 5094#endif 5095 5096 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5097 (page_index->page_len * CTL_PAGE_CURRENT)); 5098 5099 if (lock != 0) { 5100 current_sp->lock_active = APS_LOCK_ACTIVE; 5101 softc->aps_locked_lun = lun->lun; 5102 } else { 5103 current_sp->lock_active = 0; 5104 softc->aps_locked_lun = 0; 5105 } 5106 5107 5108 /* 5109 * If we're in HA mode, try to send the lock message to the other 5110 * side. 5111 */ 5112 if (ctl_is_single == 0) { 5113 int isc_retval; 5114 union ctl_ha_msg lock_msg; 5115 5116 lock_msg.hdr.nexus = *nexus; 5117 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5118 if (lock != 0) 5119 lock_msg.aps.lock_flag = 1; 5120 else 5121 lock_msg.aps.lock_flag = 0; 5122 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5123 sizeof(lock_msg), 0); 5124 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5125 printf("%s: APS (lock=%d) error returned from " 5126 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5127 mtx_unlock(&lun->lun_lock); 5128 mtx_unlock(&softc->ctl_lock); 5129 return (1); 5130 } 5131 } 5132 5133 mtx_unlock(&lun->lun_lock); 5134 mtx_unlock(&softc->ctl_lock); 5135 5136 return (0); 5137} 5138 5139void 5140ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5141{ 5142 struct ctl_lun *lun; 5143 struct ctl_softc *softc; 5144 int i; 5145 5146 softc = control_softc; 5147 5148 lun = (struct ctl_lun *)be_lun->ctl_lun; 5149 5150 mtx_lock(&lun->lun_lock); 5151 5152 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5153 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5154 5155 mtx_unlock(&lun->lun_lock); 5156} 5157 5158/* 5159 * Backend "memory move is complete" callback for requests that never 5160 * make it down to say RAIDCore's configuration code. 5161 */ 5162int 5163ctl_config_move_done(union ctl_io *io) 5164{ 5165 int retval; 5166 5167 retval = CTL_RETVAL_COMPLETE; 5168 5169 5170 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5171 /* 5172 * XXX KDM this shouldn't happen, but what if it does? 5173 */ 5174 if (io->io_hdr.io_type != CTL_IO_SCSI) 5175 panic("I/O type isn't CTL_IO_SCSI!"); 5176 5177 if ((io->io_hdr.port_status == 0) 5178 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5179 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5180 io->io_hdr.status = CTL_SUCCESS; 5181 else if ((io->io_hdr.port_status != 0) 5182 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5183 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5184 /* 5185 * For hardware error sense keys, the sense key 5186 * specific value is defined to be a retry count, 5187 * but we use it to pass back an internal FETD 5188 * error code. XXX KDM Hopefully the FETD is only 5189 * using 16 bits for an error code, since that's 5190 * all the space we have in the sks field. 5191 */ 5192 ctl_set_internal_failure(&io->scsiio, 5193 /*sks_valid*/ 1, 5194 /*retry_count*/ 5195 io->io_hdr.port_status); 5196 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5197 free(io->scsiio.kern_data_ptr, M_CTL); 5198 ctl_done(io); 5199 goto bailout; 5200 } 5201 5202 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5203 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5204 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5205 /* 5206 * XXX KDM just assuming a single pointer here, and not a 5207 * S/G list. If we start using S/G lists for config data, 5208 * we'll need to know how to clean them up here as well. 5209 */ 5210 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5211 free(io->scsiio.kern_data_ptr, M_CTL); 5212 /* Hopefully the user has already set the status... */ 5213 ctl_done(io); 5214 } else { 5215 /* 5216 * XXX KDM now we need to continue data movement. Some 5217 * options: 5218 * - call ctl_scsiio() again? We don't do this for data 5219 * writes, because for those at least we know ahead of 5220 * time where the write will go and how long it is. For 5221 * config writes, though, that information is largely 5222 * contained within the write itself, thus we need to 5223 * parse out the data again. 5224 * 5225 * - Call some other function once the data is in? 5226 */ 5227 5228 /* 5229 * XXX KDM call ctl_scsiio() again for now, and check flag 5230 * bits to see whether we're allocated or not. 5231 */ 5232 retval = ctl_scsiio(&io->scsiio); 5233 } 5234bailout: 5235 return (retval); 5236} 5237 5238/* 5239 * This gets called by a backend driver when it is done with a 5240 * data_submit method. 5241 */ 5242void 5243ctl_data_submit_done(union ctl_io *io) 5244{ 5245 /* 5246 * If the IO_CONT flag is set, we need to call the supplied 5247 * function to continue processing the I/O, instead of completing 5248 * the I/O just yet. 5249 * 5250 * If there is an error, though, we don't want to keep processing. 5251 * Instead, just send status back to the initiator. 5252 */ 5253 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5254 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5255 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5256 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5257 io->scsiio.io_cont(io); 5258 return; 5259 } 5260 ctl_done(io); 5261} 5262 5263/* 5264 * This gets called by a backend driver when it is done with a 5265 * configuration write. 5266 */ 5267void 5268ctl_config_write_done(union ctl_io *io) 5269{ 5270 uint8_t *buf; 5271 5272 /* 5273 * If the IO_CONT flag is set, we need to call the supplied 5274 * function to continue processing the I/O, instead of completing 5275 * the I/O just yet. 5276 * 5277 * If there is an error, though, we don't want to keep processing. 5278 * Instead, just send status back to the initiator. 5279 */ 5280 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5281 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5282 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5283 io->scsiio.io_cont(io); 5284 return; 5285 } 5286 /* 5287 * Since a configuration write can be done for commands that actually 5288 * have data allocated, like write buffer, and commands that have 5289 * no data, like start/stop unit, we need to check here. 5290 */ 5291 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5292 buf = io->scsiio.kern_data_ptr; 5293 else 5294 buf = NULL; 5295 ctl_done(io); 5296 if (buf) 5297 free(buf, M_CTL); 5298} 5299 5300/* 5301 * SCSI release command. 5302 */ 5303int 5304ctl_scsi_release(struct ctl_scsiio *ctsio) 5305{ 5306 int length, longid, thirdparty_id, resv_id; 5307 struct ctl_softc *ctl_softc; 5308 struct ctl_lun *lun; 5309 5310 length = 0; 5311 resv_id = 0; 5312 5313 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5314 5315 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5316 ctl_softc = control_softc; 5317 5318 switch (ctsio->cdb[0]) { 5319 case RELEASE_10: { 5320 struct scsi_release_10 *cdb; 5321 5322 cdb = (struct scsi_release_10 *)ctsio->cdb; 5323 5324 if (cdb->byte2 & SR10_LONGID) 5325 longid = 1; 5326 else 5327 thirdparty_id = cdb->thirdparty_id; 5328 5329 resv_id = cdb->resv_id; 5330 length = scsi_2btoul(cdb->length); 5331 break; 5332 } 5333 } 5334 5335 5336 /* 5337 * XXX KDM right now, we only support LUN reservation. We don't 5338 * support 3rd party reservations, or extent reservations, which 5339 * might actually need the parameter list. If we've gotten this 5340 * far, we've got a LUN reservation. Anything else got kicked out 5341 * above. So, according to SPC, ignore the length. 5342 */ 5343 length = 0; 5344 5345 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5346 && (length > 0)) { 5347 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5348 ctsio->kern_data_len = length; 5349 ctsio->kern_total_len = length; 5350 ctsio->kern_data_resid = 0; 5351 ctsio->kern_rel_offset = 0; 5352 ctsio->kern_sg_entries = 0; 5353 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5354 ctsio->be_move_done = ctl_config_move_done; 5355 ctl_datamove((union ctl_io *)ctsio); 5356 5357 return (CTL_RETVAL_COMPLETE); 5358 } 5359 5360 if (length > 0) 5361 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5362 5363 mtx_lock(&lun->lun_lock); 5364 5365 /* 5366 * According to SPC, it is not an error for an intiator to attempt 5367 * to release a reservation on a LUN that isn't reserved, or that 5368 * is reserved by another initiator. The reservation can only be 5369 * released, though, by the initiator who made it or by one of 5370 * several reset type events. 5371 */ 5372 if (lun->flags & CTL_LUN_RESERVED) { 5373 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5374 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5375 && (ctsio->io_hdr.nexus.targ_target.id == 5376 lun->rsv_nexus.targ_target.id)) { 5377 lun->flags &= ~CTL_LUN_RESERVED; 5378 } 5379 } 5380 5381 mtx_unlock(&lun->lun_lock); 5382 5383 ctsio->scsi_status = SCSI_STATUS_OK; 5384 ctsio->io_hdr.status = CTL_SUCCESS; 5385 5386 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5387 free(ctsio->kern_data_ptr, M_CTL); 5388 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5389 } 5390 5391 ctl_done((union ctl_io *)ctsio); 5392 return (CTL_RETVAL_COMPLETE); 5393} 5394 5395int 5396ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5397{ 5398 int extent, thirdparty, longid; 5399 int resv_id, length; 5400 uint64_t thirdparty_id; 5401 struct ctl_softc *ctl_softc; 5402 struct ctl_lun *lun; 5403 5404 extent = 0; 5405 thirdparty = 0; 5406 longid = 0; 5407 resv_id = 0; 5408 length = 0; 5409 thirdparty_id = 0; 5410 5411 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5412 5413 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5414 ctl_softc = control_softc; 5415 5416 switch (ctsio->cdb[0]) { 5417 case RESERVE_10: { 5418 struct scsi_reserve_10 *cdb; 5419 5420 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5421 5422 if (cdb->byte2 & SR10_LONGID) 5423 longid = 1; 5424 else 5425 thirdparty_id = cdb->thirdparty_id; 5426 5427 resv_id = cdb->resv_id; 5428 length = scsi_2btoul(cdb->length); 5429 break; 5430 } 5431 } 5432 5433 /* 5434 * XXX KDM right now, we only support LUN reservation. We don't 5435 * support 3rd party reservations, or extent reservations, which 5436 * might actually need the parameter list. If we've gotten this 5437 * far, we've got a LUN reservation. Anything else got kicked out 5438 * above. So, according to SPC, ignore the length. 5439 */ 5440 length = 0; 5441 5442 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5443 && (length > 0)) { 5444 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5445 ctsio->kern_data_len = length; 5446 ctsio->kern_total_len = length; 5447 ctsio->kern_data_resid = 0; 5448 ctsio->kern_rel_offset = 0; 5449 ctsio->kern_sg_entries = 0; 5450 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5451 ctsio->be_move_done = ctl_config_move_done; 5452 ctl_datamove((union ctl_io *)ctsio); 5453 5454 return (CTL_RETVAL_COMPLETE); 5455 } 5456 5457 if (length > 0) 5458 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5459 5460 mtx_lock(&lun->lun_lock); 5461 if (lun->flags & CTL_LUN_RESERVED) { 5462 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5463 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5464 || (ctsio->io_hdr.nexus.targ_target.id != 5465 lun->rsv_nexus.targ_target.id)) { 5466 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5467 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5468 goto bailout; 5469 } 5470 } 5471 5472 lun->flags |= CTL_LUN_RESERVED; 5473 lun->rsv_nexus = ctsio->io_hdr.nexus; 5474 5475 ctsio->scsi_status = SCSI_STATUS_OK; 5476 ctsio->io_hdr.status = CTL_SUCCESS; 5477 5478bailout: 5479 mtx_unlock(&lun->lun_lock); 5480 5481 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5482 free(ctsio->kern_data_ptr, M_CTL); 5483 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5484 } 5485 5486 ctl_done((union ctl_io *)ctsio); 5487 return (CTL_RETVAL_COMPLETE); 5488} 5489 5490int 5491ctl_start_stop(struct ctl_scsiio *ctsio) 5492{ 5493 struct scsi_start_stop_unit *cdb; 5494 struct ctl_lun *lun; 5495 struct ctl_softc *ctl_softc; 5496 int retval; 5497 5498 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5499 5500 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5501 ctl_softc = control_softc; 5502 retval = 0; 5503 5504 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5505 5506 /* 5507 * XXX KDM 5508 * We don't support the immediate bit on a stop unit. In order to 5509 * do that, we would need to code up a way to know that a stop is 5510 * pending, and hold off any new commands until it completes, one 5511 * way or another. Then we could accept or reject those commands 5512 * depending on its status. We would almost need to do the reverse 5513 * of what we do below for an immediate start -- return the copy of 5514 * the ctl_io to the FETD with status to send to the host (and to 5515 * free the copy!) and then free the original I/O once the stop 5516 * actually completes. That way, the OOA queue mechanism can work 5517 * to block commands that shouldn't proceed. Another alternative 5518 * would be to put the copy in the queue in place of the original, 5519 * and return the original back to the caller. That could be 5520 * slightly safer.. 5521 */ 5522 if ((cdb->byte2 & SSS_IMMED) 5523 && ((cdb->how & SSS_START) == 0)) { 5524 ctl_set_invalid_field(ctsio, 5525 /*sks_valid*/ 1, 5526 /*command*/ 1, 5527 /*field*/ 1, 5528 /*bit_valid*/ 1, 5529 /*bit*/ 0); 5530 ctl_done((union ctl_io *)ctsio); 5531 return (CTL_RETVAL_COMPLETE); 5532 } 5533 5534 if ((lun->flags & CTL_LUN_PR_RESERVED) 5535 && ((cdb->how & SSS_START)==0)) { 5536 uint32_t residx; 5537 5538 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5539 if (!lun->per_res[residx].registered 5540 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5541 5542 ctl_set_reservation_conflict(ctsio); 5543 ctl_done((union ctl_io *)ctsio); 5544 return (CTL_RETVAL_COMPLETE); 5545 } 5546 } 5547 5548 /* 5549 * If there is no backend on this device, we can't start or stop 5550 * it. In theory we shouldn't get any start/stop commands in the 5551 * first place at this level if the LUN doesn't have a backend. 5552 * That should get stopped by the command decode code. 5553 */ 5554 if (lun->backend == NULL) { 5555 ctl_set_invalid_opcode(ctsio); 5556 ctl_done((union ctl_io *)ctsio); 5557 return (CTL_RETVAL_COMPLETE); 5558 } 5559 5560 /* 5561 * XXX KDM Copan-specific offline behavior. 5562 * Figure out a reasonable way to port this? 5563 */ 5564#ifdef NEEDTOPORT 5565 mtx_lock(&lun->lun_lock); 5566 5567 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5568 && (lun->flags & CTL_LUN_OFFLINE)) { 5569 /* 5570 * If the LUN is offline, and the on/offline bit isn't set, 5571 * reject the start or stop. Otherwise, let it through. 5572 */ 5573 mtx_unlock(&lun->lun_lock); 5574 ctl_set_lun_not_ready(ctsio); 5575 ctl_done((union ctl_io *)ctsio); 5576 } else { 5577 mtx_unlock(&lun->lun_lock); 5578#endif /* NEEDTOPORT */ 5579 /* 5580 * This could be a start or a stop when we're online, 5581 * or a stop/offline or start/online. A start or stop when 5582 * we're offline is covered in the case above. 5583 */ 5584 /* 5585 * In the non-immediate case, we send the request to 5586 * the backend and return status to the user when 5587 * it is done. 5588 * 5589 * In the immediate case, we allocate a new ctl_io 5590 * to hold a copy of the request, and send that to 5591 * the backend. We then set good status on the 5592 * user's request and return it immediately. 5593 */ 5594 if (cdb->byte2 & SSS_IMMED) { 5595 union ctl_io *new_io; 5596 5597 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5598 if (new_io == NULL) { 5599 ctl_set_busy(ctsio); 5600 ctl_done((union ctl_io *)ctsio); 5601 } else { 5602 ctl_copy_io((union ctl_io *)ctsio, 5603 new_io); 5604 retval = lun->backend->config_write(new_io); 5605 ctl_set_success(ctsio); 5606 ctl_done((union ctl_io *)ctsio); 5607 } 5608 } else { 5609 retval = lun->backend->config_write( 5610 (union ctl_io *)ctsio); 5611 } 5612#ifdef NEEDTOPORT 5613 } 5614#endif 5615 return (retval); 5616} 5617 5618/* 5619 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5620 * we don't really do anything with the LBA and length fields if the user 5621 * passes them in. Instead we'll just flush out the cache for the entire 5622 * LUN. 5623 */ 5624int 5625ctl_sync_cache(struct ctl_scsiio *ctsio) 5626{ 5627 struct ctl_lun *lun; 5628 struct ctl_softc *ctl_softc; 5629 uint64_t starting_lba; 5630 uint32_t block_count; 5631 int retval; 5632 5633 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5634 5635 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5636 ctl_softc = control_softc; 5637 retval = 0; 5638 5639 switch (ctsio->cdb[0]) { 5640 case SYNCHRONIZE_CACHE: { 5641 struct scsi_sync_cache *cdb; 5642 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5643 5644 starting_lba = scsi_4btoul(cdb->begin_lba); 5645 block_count = scsi_2btoul(cdb->lb_count); 5646 break; 5647 } 5648 case SYNCHRONIZE_CACHE_16: { 5649 struct scsi_sync_cache_16 *cdb; 5650 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5651 5652 starting_lba = scsi_8btou64(cdb->begin_lba); 5653 block_count = scsi_4btoul(cdb->lb_count); 5654 break; 5655 } 5656 default: 5657 ctl_set_invalid_opcode(ctsio); 5658 ctl_done((union ctl_io *)ctsio); 5659 goto bailout; 5660 break; /* NOTREACHED */ 5661 } 5662 5663 /* 5664 * We check the LBA and length, but don't do anything with them. 5665 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5666 * get flushed. This check will just help satisfy anyone who wants 5667 * to see an error for an out of range LBA. 5668 */ 5669 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5670 ctl_set_lba_out_of_range(ctsio); 5671 ctl_done((union ctl_io *)ctsio); 5672 goto bailout; 5673 } 5674 5675 /* 5676 * If this LUN has no backend, we can't flush the cache anyway. 5677 */ 5678 if (lun->backend == NULL) { 5679 ctl_set_invalid_opcode(ctsio); 5680 ctl_done((union ctl_io *)ctsio); 5681 goto bailout; 5682 } 5683 5684 /* 5685 * Check to see whether we're configured to send the SYNCHRONIZE 5686 * CACHE command directly to the back end. 5687 */ 5688 mtx_lock(&lun->lun_lock); 5689 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5690 && (++(lun->sync_count) >= lun->sync_interval)) { 5691 lun->sync_count = 0; 5692 mtx_unlock(&lun->lun_lock); 5693 retval = lun->backend->config_write((union ctl_io *)ctsio); 5694 } else { 5695 mtx_unlock(&lun->lun_lock); 5696 ctl_set_success(ctsio); 5697 ctl_done((union ctl_io *)ctsio); 5698 } 5699 5700bailout: 5701 5702 return (retval); 5703} 5704 5705int 5706ctl_format(struct ctl_scsiio *ctsio) 5707{ 5708 struct scsi_format *cdb; 5709 struct ctl_lun *lun; 5710 struct ctl_softc *ctl_softc; 5711 int length, defect_list_len; 5712 5713 CTL_DEBUG_PRINT(("ctl_format\n")); 5714 5715 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5716 ctl_softc = control_softc; 5717 5718 cdb = (struct scsi_format *)ctsio->cdb; 5719 5720 length = 0; 5721 if (cdb->byte2 & SF_FMTDATA) { 5722 if (cdb->byte2 & SF_LONGLIST) 5723 length = sizeof(struct scsi_format_header_long); 5724 else 5725 length = sizeof(struct scsi_format_header_short); 5726 } 5727 5728 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5729 && (length > 0)) { 5730 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5731 ctsio->kern_data_len = length; 5732 ctsio->kern_total_len = length; 5733 ctsio->kern_data_resid = 0; 5734 ctsio->kern_rel_offset = 0; 5735 ctsio->kern_sg_entries = 0; 5736 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5737 ctsio->be_move_done = ctl_config_move_done; 5738 ctl_datamove((union ctl_io *)ctsio); 5739 5740 return (CTL_RETVAL_COMPLETE); 5741 } 5742 5743 defect_list_len = 0; 5744 5745 if (cdb->byte2 & SF_FMTDATA) { 5746 if (cdb->byte2 & SF_LONGLIST) { 5747 struct scsi_format_header_long *header; 5748 5749 header = (struct scsi_format_header_long *) 5750 ctsio->kern_data_ptr; 5751 5752 defect_list_len = scsi_4btoul(header->defect_list_len); 5753 if (defect_list_len != 0) { 5754 ctl_set_invalid_field(ctsio, 5755 /*sks_valid*/ 1, 5756 /*command*/ 0, 5757 /*field*/ 2, 5758 /*bit_valid*/ 0, 5759 /*bit*/ 0); 5760 goto bailout; 5761 } 5762 } else { 5763 struct scsi_format_header_short *header; 5764 5765 header = (struct scsi_format_header_short *) 5766 ctsio->kern_data_ptr; 5767 5768 defect_list_len = scsi_2btoul(header->defect_list_len); 5769 if (defect_list_len != 0) { 5770 ctl_set_invalid_field(ctsio, 5771 /*sks_valid*/ 1, 5772 /*command*/ 0, 5773 /*field*/ 2, 5774 /*bit_valid*/ 0, 5775 /*bit*/ 0); 5776 goto bailout; 5777 } 5778 } 5779 } 5780 5781 /* 5782 * The format command will clear out the "Medium format corrupted" 5783 * status if set by the configuration code. That status is really 5784 * just a way to notify the host that we have lost the media, and 5785 * get them to issue a command that will basically make them think 5786 * they're blowing away the media. 5787 */ 5788 mtx_lock(&lun->lun_lock); 5789 lun->flags &= ~CTL_LUN_INOPERABLE; 5790 mtx_unlock(&lun->lun_lock); 5791 5792 ctsio->scsi_status = SCSI_STATUS_OK; 5793 ctsio->io_hdr.status = CTL_SUCCESS; 5794bailout: 5795 5796 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5797 free(ctsio->kern_data_ptr, M_CTL); 5798 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5799 } 5800 5801 ctl_done((union ctl_io *)ctsio); 5802 return (CTL_RETVAL_COMPLETE); 5803} 5804 5805int 5806ctl_read_buffer(struct ctl_scsiio *ctsio) 5807{ 5808 struct scsi_read_buffer *cdb; 5809 struct ctl_lun *lun; 5810 int buffer_offset, len; 5811 static uint8_t descr[4]; 5812 static uint8_t echo_descr[4] = { 0 }; 5813 5814 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5815 5816 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5817 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5818 5819 if (lun->flags & CTL_LUN_PR_RESERVED) { 5820 uint32_t residx; 5821 5822 /* 5823 * XXX KDM need a lock here. 5824 */ 5825 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5826 if ((lun->res_type == SPR_TYPE_EX_AC 5827 && residx != lun->pr_res_idx) 5828 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5829 || lun->res_type == SPR_TYPE_EX_AC_AR) 5830 && !lun->per_res[residx].registered)) { 5831 ctl_set_reservation_conflict(ctsio); 5832 ctl_done((union ctl_io *)ctsio); 5833 return (CTL_RETVAL_COMPLETE); 5834 } 5835 } 5836 5837 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5838 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5839 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5840 ctl_set_invalid_field(ctsio, 5841 /*sks_valid*/ 1, 5842 /*command*/ 1, 5843 /*field*/ 1, 5844 /*bit_valid*/ 1, 5845 /*bit*/ 4); 5846 ctl_done((union ctl_io *)ctsio); 5847 return (CTL_RETVAL_COMPLETE); 5848 } 5849 5850 len = scsi_3btoul(cdb->length); 5851 buffer_offset = scsi_3btoul(cdb->offset); 5852 5853 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5854 ctl_set_invalid_field(ctsio, 5855 /*sks_valid*/ 1, 5856 /*command*/ 1, 5857 /*field*/ 6, 5858 /*bit_valid*/ 0, 5859 /*bit*/ 0); 5860 ctl_done((union ctl_io *)ctsio); 5861 return (CTL_RETVAL_COMPLETE); 5862 } 5863 5864 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5865 descr[0] = 0; 5866 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5867 ctsio->kern_data_ptr = descr; 5868 len = min(len, sizeof(descr)); 5869 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5870 ctsio->kern_data_ptr = echo_descr; 5871 len = min(len, sizeof(echo_descr)); 5872 } else 5873 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5874 ctsio->kern_data_len = len; 5875 ctsio->kern_total_len = len; 5876 ctsio->kern_data_resid = 0; 5877 ctsio->kern_rel_offset = 0; 5878 ctsio->kern_sg_entries = 0; 5879 ctsio->be_move_done = ctl_config_move_done; 5880 ctl_datamove((union ctl_io *)ctsio); 5881 5882 return (CTL_RETVAL_COMPLETE); 5883} 5884 5885int 5886ctl_write_buffer(struct ctl_scsiio *ctsio) 5887{ 5888 struct scsi_write_buffer *cdb; 5889 struct ctl_lun *lun; 5890 int buffer_offset, len; 5891 5892 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5893 5894 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5895 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5896 5897 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5898 ctl_set_invalid_field(ctsio, 5899 /*sks_valid*/ 1, 5900 /*command*/ 1, 5901 /*field*/ 1, 5902 /*bit_valid*/ 1, 5903 /*bit*/ 4); 5904 ctl_done((union ctl_io *)ctsio); 5905 return (CTL_RETVAL_COMPLETE); 5906 } 5907 5908 len = scsi_3btoul(cdb->length); 5909 buffer_offset = scsi_3btoul(cdb->offset); 5910 5911 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5912 ctl_set_invalid_field(ctsio, 5913 /*sks_valid*/ 1, 5914 /*command*/ 1, 5915 /*field*/ 6, 5916 /*bit_valid*/ 0, 5917 /*bit*/ 0); 5918 ctl_done((union ctl_io *)ctsio); 5919 return (CTL_RETVAL_COMPLETE); 5920 } 5921 5922 /* 5923 * If we've got a kernel request that hasn't been malloced yet, 5924 * malloc it and tell the caller the data buffer is here. 5925 */ 5926 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5927 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5928 ctsio->kern_data_len = len; 5929 ctsio->kern_total_len = len; 5930 ctsio->kern_data_resid = 0; 5931 ctsio->kern_rel_offset = 0; 5932 ctsio->kern_sg_entries = 0; 5933 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5934 ctsio->be_move_done = ctl_config_move_done; 5935 ctl_datamove((union ctl_io *)ctsio); 5936 5937 return (CTL_RETVAL_COMPLETE); 5938 } 5939 5940 ctl_done((union ctl_io *)ctsio); 5941 5942 return (CTL_RETVAL_COMPLETE); 5943} 5944 5945int 5946ctl_write_same(struct ctl_scsiio *ctsio) 5947{ 5948 struct ctl_lun *lun; 5949 struct ctl_lba_len_flags *lbalen; 5950 uint64_t lba; 5951 uint32_t num_blocks; 5952 int len, retval; 5953 uint8_t byte2; 5954 5955 retval = CTL_RETVAL_COMPLETE; 5956 5957 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5958 5959 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5960 5961 switch (ctsio->cdb[0]) { 5962 case WRITE_SAME_10: { 5963 struct scsi_write_same_10 *cdb; 5964 5965 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5966 5967 lba = scsi_4btoul(cdb->addr); 5968 num_blocks = scsi_2btoul(cdb->length); 5969 byte2 = cdb->byte2; 5970 break; 5971 } 5972 case WRITE_SAME_16: { 5973 struct scsi_write_same_16 *cdb; 5974 5975 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5976 5977 lba = scsi_8btou64(cdb->addr); 5978 num_blocks = scsi_4btoul(cdb->length); 5979 byte2 = cdb->byte2; 5980 break; 5981 } 5982 default: 5983 /* 5984 * We got a command we don't support. This shouldn't 5985 * happen, commands should be filtered out above us. 5986 */ 5987 ctl_set_invalid_opcode(ctsio); 5988 ctl_done((union ctl_io *)ctsio); 5989 5990 return (CTL_RETVAL_COMPLETE); 5991 break; /* NOTREACHED */ 5992 } 5993 5994 /* 5995 * The first check is to make sure we're in bounds, the second 5996 * check is to catch wrap-around problems. If the lba + num blocks 5997 * is less than the lba, then we've wrapped around and the block 5998 * range is invalid anyway. 5999 */ 6000 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6001 || ((lba + num_blocks) < lba)) { 6002 ctl_set_lba_out_of_range(ctsio); 6003 ctl_done((union ctl_io *)ctsio); 6004 return (CTL_RETVAL_COMPLETE); 6005 } 6006 6007 /* Zero number of blocks means "to the last logical block" */ 6008 if (num_blocks == 0) { 6009 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6010 ctl_set_invalid_field(ctsio, 6011 /*sks_valid*/ 0, 6012 /*command*/ 1, 6013 /*field*/ 0, 6014 /*bit_valid*/ 0, 6015 /*bit*/ 0); 6016 ctl_done((union ctl_io *)ctsio); 6017 return (CTL_RETVAL_COMPLETE); 6018 } 6019 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6020 } 6021 6022 len = lun->be_lun->blocksize; 6023 6024 /* 6025 * If we've got a kernel request that hasn't been malloced yet, 6026 * malloc it and tell the caller the data buffer is here. 6027 */ 6028 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6029 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6030 ctsio->kern_data_len = len; 6031 ctsio->kern_total_len = len; 6032 ctsio->kern_data_resid = 0; 6033 ctsio->kern_rel_offset = 0; 6034 ctsio->kern_sg_entries = 0; 6035 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6036 ctsio->be_move_done = ctl_config_move_done; 6037 ctl_datamove((union ctl_io *)ctsio); 6038 6039 return (CTL_RETVAL_COMPLETE); 6040 } 6041 6042 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6043 lbalen->lba = lba; 6044 lbalen->len = num_blocks; 6045 lbalen->flags = byte2; 6046 retval = lun->backend->config_write((union ctl_io *)ctsio); 6047 6048 return (retval); 6049} 6050 6051int 6052ctl_unmap(struct ctl_scsiio *ctsio) 6053{ 6054 struct ctl_lun *lun; 6055 struct scsi_unmap *cdb; 6056 struct ctl_ptr_len_flags *ptrlen; 6057 struct scsi_unmap_header *hdr; 6058 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6059 uint64_t lba; 6060 uint32_t num_blocks; 6061 int len, retval; 6062 uint8_t byte2; 6063 6064 retval = CTL_RETVAL_COMPLETE; 6065 6066 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6067 6068 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6069 cdb = (struct scsi_unmap *)ctsio->cdb; 6070 6071 len = scsi_2btoul(cdb->length); 6072 byte2 = cdb->byte2; 6073 6074 /* 6075 * If we've got a kernel request that hasn't been malloced yet, 6076 * malloc it and tell the caller the data buffer is here. 6077 */ 6078 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6079 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6080 ctsio->kern_data_len = len; 6081 ctsio->kern_total_len = len; 6082 ctsio->kern_data_resid = 0; 6083 ctsio->kern_rel_offset = 0; 6084 ctsio->kern_sg_entries = 0; 6085 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6086 ctsio->be_move_done = ctl_config_move_done; 6087 ctl_datamove((union ctl_io *)ctsio); 6088 6089 return (CTL_RETVAL_COMPLETE); 6090 } 6091 6092 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6093 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6094 if (len < sizeof (*hdr) || 6095 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6096 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6097 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6098 ctl_set_invalid_field(ctsio, 6099 /*sks_valid*/ 0, 6100 /*command*/ 0, 6101 /*field*/ 0, 6102 /*bit_valid*/ 0, 6103 /*bit*/ 0); 6104 ctl_done((union ctl_io *)ctsio); 6105 return (CTL_RETVAL_COMPLETE); 6106 } 6107 len = scsi_2btoul(hdr->desc_length); 6108 buf = (struct scsi_unmap_desc *)(hdr + 1); 6109 end = buf + len / sizeof(*buf); 6110 6111 endnz = buf; 6112 for (range = buf; range < end; range++) { 6113 lba = scsi_8btou64(range->lba); 6114 num_blocks = scsi_4btoul(range->length); 6115 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6116 || ((lba + num_blocks) < lba)) { 6117 ctl_set_lba_out_of_range(ctsio); 6118 ctl_done((union ctl_io *)ctsio); 6119 return (CTL_RETVAL_COMPLETE); 6120 } 6121 if (num_blocks != 0) 6122 endnz = range + 1; 6123 } 6124 6125 /* 6126 * Block backend can not handle zero last range. 6127 * Filter it out and return if there is nothing left. 6128 */ 6129 len = (uint8_t *)endnz - (uint8_t *)buf; 6130 if (len == 0) { 6131 ctl_set_success(ctsio); 6132 ctl_done((union ctl_io *)ctsio); 6133 return (CTL_RETVAL_COMPLETE); 6134 } 6135 6136 mtx_lock(&lun->lun_lock); 6137 ptrlen = (struct ctl_ptr_len_flags *) 6138 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6139 ptrlen->ptr = (void *)buf; 6140 ptrlen->len = len; 6141 ptrlen->flags = byte2; 6142 ctl_check_blocked(lun); 6143 mtx_unlock(&lun->lun_lock); 6144 6145 retval = lun->backend->config_write((union ctl_io *)ctsio); 6146 return (retval); 6147} 6148 6149/* 6150 * Note that this function currently doesn't actually do anything inside 6151 * CTL to enforce things if the DQue bit is turned on. 6152 * 6153 * Also note that this function can't be used in the default case, because 6154 * the DQue bit isn't set in the changeable mask for the control mode page 6155 * anyway. This is just here as an example for how to implement a page 6156 * handler, and a placeholder in case we want to allow the user to turn 6157 * tagged queueing on and off. 6158 * 6159 * The D_SENSE bit handling is functional, however, and will turn 6160 * descriptor sense on and off for a given LUN. 6161 */ 6162int 6163ctl_control_page_handler(struct ctl_scsiio *ctsio, 6164 struct ctl_page_index *page_index, uint8_t *page_ptr) 6165{ 6166 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6167 struct ctl_lun *lun; 6168 struct ctl_softc *softc; 6169 int set_ua; 6170 uint32_t initidx; 6171 6172 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6173 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6174 set_ua = 0; 6175 6176 user_cp = (struct scsi_control_page *)page_ptr; 6177 current_cp = (struct scsi_control_page *) 6178 (page_index->page_data + (page_index->page_len * 6179 CTL_PAGE_CURRENT)); 6180 saved_cp = (struct scsi_control_page *) 6181 (page_index->page_data + (page_index->page_len * 6182 CTL_PAGE_SAVED)); 6183 6184 softc = control_softc; 6185 6186 mtx_lock(&lun->lun_lock); 6187 if (((current_cp->rlec & SCP_DSENSE) == 0) 6188 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6189 /* 6190 * Descriptor sense is currently turned off and the user 6191 * wants to turn it on. 6192 */ 6193 current_cp->rlec |= SCP_DSENSE; 6194 saved_cp->rlec |= SCP_DSENSE; 6195 lun->flags |= CTL_LUN_SENSE_DESC; 6196 set_ua = 1; 6197 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6198 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6199 /* 6200 * Descriptor sense is currently turned on, and the user 6201 * wants to turn it off. 6202 */ 6203 current_cp->rlec &= ~SCP_DSENSE; 6204 saved_cp->rlec &= ~SCP_DSENSE; 6205 lun->flags &= ~CTL_LUN_SENSE_DESC; 6206 set_ua = 1; 6207 } 6208 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6209 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6210#ifdef NEEDTOPORT 6211 csevent_log(CSC_CTL | CSC_SHELF_SW | 6212 CTL_UNTAG_TO_UNTAG, 6213 csevent_LogType_Trace, 6214 csevent_Severity_Information, 6215 csevent_AlertLevel_Green, 6216 csevent_FRU_Firmware, 6217 csevent_FRU_Unknown, 6218 "Received untagged to untagged transition"); 6219#endif /* NEEDTOPORT */ 6220 } else { 6221#ifdef NEEDTOPORT 6222 csevent_log(CSC_CTL | CSC_SHELF_SW | 6223 CTL_UNTAG_TO_TAG, 6224 csevent_LogType_ConfigChange, 6225 csevent_Severity_Information, 6226 csevent_AlertLevel_Green, 6227 csevent_FRU_Firmware, 6228 csevent_FRU_Unknown, 6229 "Received untagged to tagged " 6230 "queueing transition"); 6231#endif /* NEEDTOPORT */ 6232 6233 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6234 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6235 set_ua = 1; 6236 } 6237 } else { 6238 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6239#ifdef NEEDTOPORT 6240 csevent_log(CSC_CTL | CSC_SHELF_SW | 6241 CTL_TAG_TO_UNTAG, 6242 csevent_LogType_ConfigChange, 6243 csevent_Severity_Warning, 6244 csevent_AlertLevel_Yellow, 6245 csevent_FRU_Firmware, 6246 csevent_FRU_Unknown, 6247 "Received tagged queueing to untagged " 6248 "transition"); 6249#endif /* NEEDTOPORT */ 6250 6251 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6252 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6253 set_ua = 1; 6254 } else { 6255#ifdef NEEDTOPORT 6256 csevent_log(CSC_CTL | CSC_SHELF_SW | 6257 CTL_TAG_TO_TAG, 6258 csevent_LogType_Trace, 6259 csevent_Severity_Information, 6260 csevent_AlertLevel_Green, 6261 csevent_FRU_Firmware, 6262 csevent_FRU_Unknown, 6263 "Received tagged queueing to tagged " 6264 "queueing transition"); 6265#endif /* NEEDTOPORT */ 6266 } 6267 } 6268 if (set_ua != 0) { 6269 int i; 6270 /* 6271 * Let other initiators know that the mode 6272 * parameters for this LUN have changed. 6273 */ 6274 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6275 if (i == initidx) 6276 continue; 6277 6278 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6279 } 6280 } 6281 mtx_unlock(&lun->lun_lock); 6282 6283 return (0); 6284} 6285 6286int 6287ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6288 struct ctl_page_index *page_index, uint8_t *page_ptr) 6289{ 6290 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6291 struct ctl_lun *lun; 6292 int set_ua; 6293 uint32_t initidx; 6294 6295 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6296 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6297 set_ua = 0; 6298 6299 user_cp = (struct scsi_caching_page *)page_ptr; 6300 current_cp = (struct scsi_caching_page *) 6301 (page_index->page_data + (page_index->page_len * 6302 CTL_PAGE_CURRENT)); 6303 saved_cp = (struct scsi_caching_page *) 6304 (page_index->page_data + (page_index->page_len * 6305 CTL_PAGE_SAVED)); 6306 6307 mtx_lock(&lun->lun_lock); 6308 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6309 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) 6310 set_ua = 1; 6311 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6312 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6313 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6314 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6315 if (set_ua != 0) { 6316 int i; 6317 /* 6318 * Let other initiators know that the mode 6319 * parameters for this LUN have changed. 6320 */ 6321 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6322 if (i == initidx) 6323 continue; 6324 6325 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6326 } 6327 } 6328 mtx_unlock(&lun->lun_lock); 6329 6330 return (0); 6331} 6332 6333int 6334ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6335 struct ctl_page_index *page_index, uint8_t *page_ptr) 6336{ 6337 return (0); 6338} 6339 6340int 6341ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6342 struct ctl_page_index *page_index, int pc) 6343{ 6344 struct copan_power_subpage *page; 6345 6346 page = (struct copan_power_subpage *)page_index->page_data + 6347 (page_index->page_len * pc); 6348 6349 switch (pc) { 6350 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6351 /* 6352 * We don't update the changable bits for this page. 6353 */ 6354 break; 6355 case SMS_PAGE_CTRL_CURRENT >> 6: 6356 case SMS_PAGE_CTRL_DEFAULT >> 6: 6357 case SMS_PAGE_CTRL_SAVED >> 6: 6358#ifdef NEEDTOPORT 6359 ctl_update_power_subpage(page); 6360#endif 6361 break; 6362 default: 6363#ifdef NEEDTOPORT 6364 EPRINT(0, "Invalid PC %d!!", pc); 6365#endif 6366 break; 6367 } 6368 return (0); 6369} 6370 6371 6372int 6373ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6374 struct ctl_page_index *page_index, uint8_t *page_ptr) 6375{ 6376 struct copan_aps_subpage *user_sp; 6377 struct copan_aps_subpage *current_sp; 6378 union ctl_modepage_info *modepage_info; 6379 struct ctl_softc *softc; 6380 struct ctl_lun *lun; 6381 int retval; 6382 6383 retval = CTL_RETVAL_COMPLETE; 6384 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6385 (page_index->page_len * CTL_PAGE_CURRENT)); 6386 softc = control_softc; 6387 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6388 6389 user_sp = (struct copan_aps_subpage *)page_ptr; 6390 6391 modepage_info = (union ctl_modepage_info *) 6392 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6393 6394 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6395 modepage_info->header.subpage = page_index->subpage; 6396 modepage_info->aps.lock_active = user_sp->lock_active; 6397 6398 mtx_lock(&softc->ctl_lock); 6399 6400 /* 6401 * If there is a request to lock the LUN and another LUN is locked 6402 * this is an error. If the requested LUN is already locked ignore 6403 * the request. If no LUN is locked attempt to lock it. 6404 * if there is a request to unlock the LUN and the LUN is currently 6405 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6406 * if another LUN is locked or no LUN is locked. 6407 */ 6408 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6409 if (softc->aps_locked_lun == lun->lun) { 6410 /* 6411 * This LUN is already locked, so we're done. 6412 */ 6413 retval = CTL_RETVAL_COMPLETE; 6414 } else if (softc->aps_locked_lun == 0) { 6415 /* 6416 * No one has the lock, pass the request to the 6417 * backend. 6418 */ 6419 retval = lun->backend->config_write( 6420 (union ctl_io *)ctsio); 6421 } else { 6422 /* 6423 * Someone else has the lock, throw out the request. 6424 */ 6425 ctl_set_already_locked(ctsio); 6426 free(ctsio->kern_data_ptr, M_CTL); 6427 ctl_done((union ctl_io *)ctsio); 6428 6429 /* 6430 * Set the return value so that ctl_do_mode_select() 6431 * won't try to complete the command. We already 6432 * completed it here. 6433 */ 6434 retval = CTL_RETVAL_ERROR; 6435 } 6436 } else if (softc->aps_locked_lun == lun->lun) { 6437 /* 6438 * This LUN is locked, so pass the unlock request to the 6439 * backend. 6440 */ 6441 retval = lun->backend->config_write((union ctl_io *)ctsio); 6442 } 6443 mtx_unlock(&softc->ctl_lock); 6444 6445 return (retval); 6446} 6447 6448int 6449ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6450 struct ctl_page_index *page_index, 6451 uint8_t *page_ptr) 6452{ 6453 uint8_t *c; 6454 int i; 6455 6456 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6457 ctl_time_io_secs = 6458 (c[0] << 8) | 6459 (c[1] << 0) | 6460 0; 6461 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6462 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6463 printf("page data:"); 6464 for (i=0; i<8; i++) 6465 printf(" %.2x",page_ptr[i]); 6466 printf("\n"); 6467 return (0); 6468} 6469 6470int 6471ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6472 struct ctl_page_index *page_index, 6473 int pc) 6474{ 6475 struct copan_debugconf_subpage *page; 6476 6477 page = (struct copan_debugconf_subpage *)page_index->page_data + 6478 (page_index->page_len * pc); 6479 6480 switch (pc) { 6481 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6482 case SMS_PAGE_CTRL_DEFAULT >> 6: 6483 case SMS_PAGE_CTRL_SAVED >> 6: 6484 /* 6485 * We don't update the changable or default bits for this page. 6486 */ 6487 break; 6488 case SMS_PAGE_CTRL_CURRENT >> 6: 6489 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6490 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6491 break; 6492 default: 6493#ifdef NEEDTOPORT 6494 EPRINT(0, "Invalid PC %d!!", pc); 6495#endif /* NEEDTOPORT */ 6496 break; 6497 } 6498 return (0); 6499} 6500 6501 6502static int 6503ctl_do_mode_select(union ctl_io *io) 6504{ 6505 struct scsi_mode_page_header *page_header; 6506 struct ctl_page_index *page_index; 6507 struct ctl_scsiio *ctsio; 6508 int control_dev, page_len; 6509 int page_len_offset, page_len_size; 6510 union ctl_modepage_info *modepage_info; 6511 struct ctl_lun *lun; 6512 int *len_left, *len_used; 6513 int retval, i; 6514 6515 ctsio = &io->scsiio; 6516 page_index = NULL; 6517 page_len = 0; 6518 retval = CTL_RETVAL_COMPLETE; 6519 6520 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6521 6522 if (lun->be_lun->lun_type != T_DIRECT) 6523 control_dev = 1; 6524 else 6525 control_dev = 0; 6526 6527 modepage_info = (union ctl_modepage_info *) 6528 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6529 len_left = &modepage_info->header.len_left; 6530 len_used = &modepage_info->header.len_used; 6531 6532do_next_page: 6533 6534 page_header = (struct scsi_mode_page_header *) 6535 (ctsio->kern_data_ptr + *len_used); 6536 6537 if (*len_left == 0) { 6538 free(ctsio->kern_data_ptr, M_CTL); 6539 ctl_set_success(ctsio); 6540 ctl_done((union ctl_io *)ctsio); 6541 return (CTL_RETVAL_COMPLETE); 6542 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6543 6544 free(ctsio->kern_data_ptr, M_CTL); 6545 ctl_set_param_len_error(ctsio); 6546 ctl_done((union ctl_io *)ctsio); 6547 return (CTL_RETVAL_COMPLETE); 6548 6549 } else if ((page_header->page_code & SMPH_SPF) 6550 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6551 6552 free(ctsio->kern_data_ptr, M_CTL); 6553 ctl_set_param_len_error(ctsio); 6554 ctl_done((union ctl_io *)ctsio); 6555 return (CTL_RETVAL_COMPLETE); 6556 } 6557 6558 6559 /* 6560 * XXX KDM should we do something with the block descriptor? 6561 */ 6562 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6563 6564 if ((control_dev != 0) 6565 && (lun->mode_pages.index[i].page_flags & 6566 CTL_PAGE_FLAG_DISK_ONLY)) 6567 continue; 6568 6569 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6570 (page_header->page_code & SMPH_PC_MASK)) 6571 continue; 6572 6573 /* 6574 * If neither page has a subpage code, then we've got a 6575 * match. 6576 */ 6577 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6578 && ((page_header->page_code & SMPH_SPF) == 0)) { 6579 page_index = &lun->mode_pages.index[i]; 6580 page_len = page_header->page_length; 6581 break; 6582 } 6583 6584 /* 6585 * If both pages have subpages, then the subpage numbers 6586 * have to match. 6587 */ 6588 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6589 && (page_header->page_code & SMPH_SPF)) { 6590 struct scsi_mode_page_header_sp *sph; 6591 6592 sph = (struct scsi_mode_page_header_sp *)page_header; 6593 6594 if (lun->mode_pages.index[i].subpage == 6595 sph->subpage) { 6596 page_index = &lun->mode_pages.index[i]; 6597 page_len = scsi_2btoul(sph->page_length); 6598 break; 6599 } 6600 } 6601 } 6602 6603 /* 6604 * If we couldn't find the page, or if we don't have a mode select 6605 * handler for it, send back an error to the user. 6606 */ 6607 if ((page_index == NULL) 6608 || (page_index->select_handler == NULL)) { 6609 ctl_set_invalid_field(ctsio, 6610 /*sks_valid*/ 1, 6611 /*command*/ 0, 6612 /*field*/ *len_used, 6613 /*bit_valid*/ 0, 6614 /*bit*/ 0); 6615 free(ctsio->kern_data_ptr, M_CTL); 6616 ctl_done((union ctl_io *)ctsio); 6617 return (CTL_RETVAL_COMPLETE); 6618 } 6619 6620 if (page_index->page_code & SMPH_SPF) { 6621 page_len_offset = 2; 6622 page_len_size = 2; 6623 } else { 6624 page_len_size = 1; 6625 page_len_offset = 1; 6626 } 6627 6628 /* 6629 * If the length the initiator gives us isn't the one we specify in 6630 * the mode page header, or if they didn't specify enough data in 6631 * the CDB to avoid truncating this page, kick out the request. 6632 */ 6633 if ((page_len != (page_index->page_len - page_len_offset - 6634 page_len_size)) 6635 || (*len_left < page_index->page_len)) { 6636 6637 6638 ctl_set_invalid_field(ctsio, 6639 /*sks_valid*/ 1, 6640 /*command*/ 0, 6641 /*field*/ *len_used + page_len_offset, 6642 /*bit_valid*/ 0, 6643 /*bit*/ 0); 6644 free(ctsio->kern_data_ptr, M_CTL); 6645 ctl_done((union ctl_io *)ctsio); 6646 return (CTL_RETVAL_COMPLETE); 6647 } 6648 6649 /* 6650 * Run through the mode page, checking to make sure that the bits 6651 * the user changed are actually legal for him to change. 6652 */ 6653 for (i = 0; i < page_index->page_len; i++) { 6654 uint8_t *user_byte, *change_mask, *current_byte; 6655 int bad_bit; 6656 int j; 6657 6658 user_byte = (uint8_t *)page_header + i; 6659 change_mask = page_index->page_data + 6660 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6661 current_byte = page_index->page_data + 6662 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6663 6664 /* 6665 * Check to see whether the user set any bits in this byte 6666 * that he is not allowed to set. 6667 */ 6668 if ((*user_byte & ~(*change_mask)) == 6669 (*current_byte & ~(*change_mask))) 6670 continue; 6671 6672 /* 6673 * Go through bit by bit to determine which one is illegal. 6674 */ 6675 bad_bit = 0; 6676 for (j = 7; j >= 0; j--) { 6677 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6678 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6679 bad_bit = i; 6680 break; 6681 } 6682 } 6683 ctl_set_invalid_field(ctsio, 6684 /*sks_valid*/ 1, 6685 /*command*/ 0, 6686 /*field*/ *len_used + i, 6687 /*bit_valid*/ 1, 6688 /*bit*/ bad_bit); 6689 free(ctsio->kern_data_ptr, M_CTL); 6690 ctl_done((union ctl_io *)ctsio); 6691 return (CTL_RETVAL_COMPLETE); 6692 } 6693 6694 /* 6695 * Decrement these before we call the page handler, since we may 6696 * end up getting called back one way or another before the handler 6697 * returns to this context. 6698 */ 6699 *len_left -= page_index->page_len; 6700 *len_used += page_index->page_len; 6701 6702 retval = page_index->select_handler(ctsio, page_index, 6703 (uint8_t *)page_header); 6704 6705 /* 6706 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6707 * wait until this queued command completes to finish processing 6708 * the mode page. If it returns anything other than 6709 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6710 * already set the sense information, freed the data pointer, and 6711 * completed the io for us. 6712 */ 6713 if (retval != CTL_RETVAL_COMPLETE) 6714 goto bailout_no_done; 6715 6716 /* 6717 * If the initiator sent us more than one page, parse the next one. 6718 */ 6719 if (*len_left > 0) 6720 goto do_next_page; 6721 6722 ctl_set_success(ctsio); 6723 free(ctsio->kern_data_ptr, M_CTL); 6724 ctl_done((union ctl_io *)ctsio); 6725 6726bailout_no_done: 6727 6728 return (CTL_RETVAL_COMPLETE); 6729 6730} 6731 6732int 6733ctl_mode_select(struct ctl_scsiio *ctsio) 6734{ 6735 int param_len, pf, sp; 6736 int header_size, bd_len; 6737 int len_left, len_used; 6738 struct ctl_page_index *page_index; 6739 struct ctl_lun *lun; 6740 int control_dev, page_len; 6741 union ctl_modepage_info *modepage_info; 6742 int retval; 6743 6744 pf = 0; 6745 sp = 0; 6746 page_len = 0; 6747 len_used = 0; 6748 len_left = 0; 6749 retval = 0; 6750 bd_len = 0; 6751 page_index = NULL; 6752 6753 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6754 6755 if (lun->be_lun->lun_type != T_DIRECT) 6756 control_dev = 1; 6757 else 6758 control_dev = 0; 6759 6760 switch (ctsio->cdb[0]) { 6761 case MODE_SELECT_6: { 6762 struct scsi_mode_select_6 *cdb; 6763 6764 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6765 6766 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6767 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6768 6769 param_len = cdb->length; 6770 header_size = sizeof(struct scsi_mode_header_6); 6771 break; 6772 } 6773 case MODE_SELECT_10: { 6774 struct scsi_mode_select_10 *cdb; 6775 6776 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6777 6778 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6779 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6780 6781 param_len = scsi_2btoul(cdb->length); 6782 header_size = sizeof(struct scsi_mode_header_10); 6783 break; 6784 } 6785 default: 6786 ctl_set_invalid_opcode(ctsio); 6787 ctl_done((union ctl_io *)ctsio); 6788 return (CTL_RETVAL_COMPLETE); 6789 break; /* NOTREACHED */ 6790 } 6791 6792 /* 6793 * From SPC-3: 6794 * "A parameter list length of zero indicates that the Data-Out Buffer 6795 * shall be empty. This condition shall not be considered as an error." 6796 */ 6797 if (param_len == 0) { 6798 ctl_set_success(ctsio); 6799 ctl_done((union ctl_io *)ctsio); 6800 return (CTL_RETVAL_COMPLETE); 6801 } 6802 6803 /* 6804 * Since we'll hit this the first time through, prior to 6805 * allocation, we don't need to free a data buffer here. 6806 */ 6807 if (param_len < header_size) { 6808 ctl_set_param_len_error(ctsio); 6809 ctl_done((union ctl_io *)ctsio); 6810 return (CTL_RETVAL_COMPLETE); 6811 } 6812 6813 /* 6814 * Allocate the data buffer and grab the user's data. In theory, 6815 * we shouldn't have to sanity check the parameter list length here 6816 * because the maximum size is 64K. We should be able to malloc 6817 * that much without too many problems. 6818 */ 6819 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6820 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6821 ctsio->kern_data_len = param_len; 6822 ctsio->kern_total_len = param_len; 6823 ctsio->kern_data_resid = 0; 6824 ctsio->kern_rel_offset = 0; 6825 ctsio->kern_sg_entries = 0; 6826 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6827 ctsio->be_move_done = ctl_config_move_done; 6828 ctl_datamove((union ctl_io *)ctsio); 6829 6830 return (CTL_RETVAL_COMPLETE); 6831 } 6832 6833 switch (ctsio->cdb[0]) { 6834 case MODE_SELECT_6: { 6835 struct scsi_mode_header_6 *mh6; 6836 6837 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6838 bd_len = mh6->blk_desc_len; 6839 break; 6840 } 6841 case MODE_SELECT_10: { 6842 struct scsi_mode_header_10 *mh10; 6843 6844 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6845 bd_len = scsi_2btoul(mh10->blk_desc_len); 6846 break; 6847 } 6848 default: 6849 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6850 break; 6851 } 6852 6853 if (param_len < (header_size + bd_len)) { 6854 free(ctsio->kern_data_ptr, M_CTL); 6855 ctl_set_param_len_error(ctsio); 6856 ctl_done((union ctl_io *)ctsio); 6857 return (CTL_RETVAL_COMPLETE); 6858 } 6859 6860 /* 6861 * Set the IO_CONT flag, so that if this I/O gets passed to 6862 * ctl_config_write_done(), it'll get passed back to 6863 * ctl_do_mode_select() for further processing, or completion if 6864 * we're all done. 6865 */ 6866 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6867 ctsio->io_cont = ctl_do_mode_select; 6868 6869 modepage_info = (union ctl_modepage_info *) 6870 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6871 6872 memset(modepage_info, 0, sizeof(*modepage_info)); 6873 6874 len_left = param_len - header_size - bd_len; 6875 len_used = header_size + bd_len; 6876 6877 modepage_info->header.len_left = len_left; 6878 modepage_info->header.len_used = len_used; 6879 6880 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6881} 6882 6883int 6884ctl_mode_sense(struct ctl_scsiio *ctsio) 6885{ 6886 struct ctl_lun *lun; 6887 int pc, page_code, dbd, llba, subpage; 6888 int alloc_len, page_len, header_len, total_len; 6889 struct scsi_mode_block_descr *block_desc; 6890 struct ctl_page_index *page_index; 6891 int control_dev; 6892 6893 dbd = 0; 6894 llba = 0; 6895 block_desc = NULL; 6896 page_index = NULL; 6897 6898 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6899 6900 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6901 6902 if (lun->be_lun->lun_type != T_DIRECT) 6903 control_dev = 1; 6904 else 6905 control_dev = 0; 6906 6907 if (lun->flags & CTL_LUN_PR_RESERVED) { 6908 uint32_t residx; 6909 6910 /* 6911 * XXX KDM need a lock here. 6912 */ 6913 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6914 if ((lun->res_type == SPR_TYPE_EX_AC 6915 && residx != lun->pr_res_idx) 6916 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6917 || lun->res_type == SPR_TYPE_EX_AC_AR) 6918 && !lun->per_res[residx].registered)) { 6919 ctl_set_reservation_conflict(ctsio); 6920 ctl_done((union ctl_io *)ctsio); 6921 return (CTL_RETVAL_COMPLETE); 6922 } 6923 } 6924 6925 switch (ctsio->cdb[0]) { 6926 case MODE_SENSE_6: { 6927 struct scsi_mode_sense_6 *cdb; 6928 6929 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6930 6931 header_len = sizeof(struct scsi_mode_hdr_6); 6932 if (cdb->byte2 & SMS_DBD) 6933 dbd = 1; 6934 else 6935 header_len += sizeof(struct scsi_mode_block_descr); 6936 6937 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6938 page_code = cdb->page & SMS_PAGE_CODE; 6939 subpage = cdb->subpage; 6940 alloc_len = cdb->length; 6941 break; 6942 } 6943 case MODE_SENSE_10: { 6944 struct scsi_mode_sense_10 *cdb; 6945 6946 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6947 6948 header_len = sizeof(struct scsi_mode_hdr_10); 6949 6950 if (cdb->byte2 & SMS_DBD) 6951 dbd = 1; 6952 else 6953 header_len += sizeof(struct scsi_mode_block_descr); 6954 if (cdb->byte2 & SMS10_LLBAA) 6955 llba = 1; 6956 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6957 page_code = cdb->page & SMS_PAGE_CODE; 6958 subpage = cdb->subpage; 6959 alloc_len = scsi_2btoul(cdb->length); 6960 break; 6961 } 6962 default: 6963 ctl_set_invalid_opcode(ctsio); 6964 ctl_done((union ctl_io *)ctsio); 6965 return (CTL_RETVAL_COMPLETE); 6966 break; /* NOTREACHED */ 6967 } 6968 6969 /* 6970 * We have to make a first pass through to calculate the size of 6971 * the pages that match the user's query. Then we allocate enough 6972 * memory to hold it, and actually copy the data into the buffer. 6973 */ 6974 switch (page_code) { 6975 case SMS_ALL_PAGES_PAGE: { 6976 int i; 6977 6978 page_len = 0; 6979 6980 /* 6981 * At the moment, values other than 0 and 0xff here are 6982 * reserved according to SPC-3. 6983 */ 6984 if ((subpage != SMS_SUBPAGE_PAGE_0) 6985 && (subpage != SMS_SUBPAGE_ALL)) { 6986 ctl_set_invalid_field(ctsio, 6987 /*sks_valid*/ 1, 6988 /*command*/ 1, 6989 /*field*/ 3, 6990 /*bit_valid*/ 0, 6991 /*bit*/ 0); 6992 ctl_done((union ctl_io *)ctsio); 6993 return (CTL_RETVAL_COMPLETE); 6994 } 6995 6996 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6997 if ((control_dev != 0) 6998 && (lun->mode_pages.index[i].page_flags & 6999 CTL_PAGE_FLAG_DISK_ONLY)) 7000 continue; 7001 7002 /* 7003 * We don't use this subpage if the user didn't 7004 * request all subpages. 7005 */ 7006 if ((lun->mode_pages.index[i].subpage != 0) 7007 && (subpage == SMS_SUBPAGE_PAGE_0)) 7008 continue; 7009 7010#if 0 7011 printf("found page %#x len %d\n", 7012 lun->mode_pages.index[i].page_code & 7013 SMPH_PC_MASK, 7014 lun->mode_pages.index[i].page_len); 7015#endif 7016 page_len += lun->mode_pages.index[i].page_len; 7017 } 7018 break; 7019 } 7020 default: { 7021 int i; 7022 7023 page_len = 0; 7024 7025 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7026 /* Look for the right page code */ 7027 if ((lun->mode_pages.index[i].page_code & 7028 SMPH_PC_MASK) != page_code) 7029 continue; 7030 7031 /* Look for the right subpage or the subpage wildcard*/ 7032 if ((lun->mode_pages.index[i].subpage != subpage) 7033 && (subpage != SMS_SUBPAGE_ALL)) 7034 continue; 7035 7036 /* Make sure the page is supported for this dev type */ 7037 if ((control_dev != 0) 7038 && (lun->mode_pages.index[i].page_flags & 7039 CTL_PAGE_FLAG_DISK_ONLY)) 7040 continue; 7041 7042#if 0 7043 printf("found page %#x len %d\n", 7044 lun->mode_pages.index[i].page_code & 7045 SMPH_PC_MASK, 7046 lun->mode_pages.index[i].page_len); 7047#endif 7048 7049 page_len += lun->mode_pages.index[i].page_len; 7050 } 7051 7052 if (page_len == 0) { 7053 ctl_set_invalid_field(ctsio, 7054 /*sks_valid*/ 1, 7055 /*command*/ 1, 7056 /*field*/ 2, 7057 /*bit_valid*/ 1, 7058 /*bit*/ 5); 7059 ctl_done((union ctl_io *)ctsio); 7060 return (CTL_RETVAL_COMPLETE); 7061 } 7062 break; 7063 } 7064 } 7065 7066 total_len = header_len + page_len; 7067#if 0 7068 printf("header_len = %d, page_len = %d, total_len = %d\n", 7069 header_len, page_len, total_len); 7070#endif 7071 7072 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7073 ctsio->kern_sg_entries = 0; 7074 ctsio->kern_data_resid = 0; 7075 ctsio->kern_rel_offset = 0; 7076 if (total_len < alloc_len) { 7077 ctsio->residual = alloc_len - total_len; 7078 ctsio->kern_data_len = total_len; 7079 ctsio->kern_total_len = total_len; 7080 } else { 7081 ctsio->residual = 0; 7082 ctsio->kern_data_len = alloc_len; 7083 ctsio->kern_total_len = alloc_len; 7084 } 7085 7086 switch (ctsio->cdb[0]) { 7087 case MODE_SENSE_6: { 7088 struct scsi_mode_hdr_6 *header; 7089 7090 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7091 7092 header->datalen = ctl_min(total_len - 1, 254); 7093 if (control_dev == 0) 7094 header->dev_specific = 0x10; /* DPOFUA */ 7095 if (dbd) 7096 header->block_descr_len = 0; 7097 else 7098 header->block_descr_len = 7099 sizeof(struct scsi_mode_block_descr); 7100 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7101 break; 7102 } 7103 case MODE_SENSE_10: { 7104 struct scsi_mode_hdr_10 *header; 7105 int datalen; 7106 7107 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7108 7109 datalen = ctl_min(total_len - 2, 65533); 7110 scsi_ulto2b(datalen, header->datalen); 7111 if (control_dev == 0) 7112 header->dev_specific = 0x10; /* DPOFUA */ 7113 if (dbd) 7114 scsi_ulto2b(0, header->block_descr_len); 7115 else 7116 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7117 header->block_descr_len); 7118 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7119 break; 7120 } 7121 default: 7122 panic("invalid CDB type %#x", ctsio->cdb[0]); 7123 break; /* NOTREACHED */ 7124 } 7125 7126 /* 7127 * If we've got a disk, use its blocksize in the block 7128 * descriptor. Otherwise, just set it to 0. 7129 */ 7130 if (dbd == 0) { 7131 if (control_dev != 0) 7132 scsi_ulto3b(lun->be_lun->blocksize, 7133 block_desc->block_len); 7134 else 7135 scsi_ulto3b(0, block_desc->block_len); 7136 } 7137 7138 switch (page_code) { 7139 case SMS_ALL_PAGES_PAGE: { 7140 int i, data_used; 7141 7142 data_used = header_len; 7143 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7144 struct ctl_page_index *page_index; 7145 7146 page_index = &lun->mode_pages.index[i]; 7147 7148 if ((control_dev != 0) 7149 && (page_index->page_flags & 7150 CTL_PAGE_FLAG_DISK_ONLY)) 7151 continue; 7152 7153 /* 7154 * We don't use this subpage if the user didn't 7155 * request all subpages. We already checked (above) 7156 * to make sure the user only specified a subpage 7157 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7158 */ 7159 if ((page_index->subpage != 0) 7160 && (subpage == SMS_SUBPAGE_PAGE_0)) 7161 continue; 7162 7163 /* 7164 * Call the handler, if it exists, to update the 7165 * page to the latest values. 7166 */ 7167 if (page_index->sense_handler != NULL) 7168 page_index->sense_handler(ctsio, page_index,pc); 7169 7170 memcpy(ctsio->kern_data_ptr + data_used, 7171 page_index->page_data + 7172 (page_index->page_len * pc), 7173 page_index->page_len); 7174 data_used += page_index->page_len; 7175 } 7176 break; 7177 } 7178 default: { 7179 int i, data_used; 7180 7181 data_used = header_len; 7182 7183 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7184 struct ctl_page_index *page_index; 7185 7186 page_index = &lun->mode_pages.index[i]; 7187 7188 /* Look for the right page code */ 7189 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7190 continue; 7191 7192 /* Look for the right subpage or the subpage wildcard*/ 7193 if ((page_index->subpage != subpage) 7194 && (subpage != SMS_SUBPAGE_ALL)) 7195 continue; 7196 7197 /* Make sure the page is supported for this dev type */ 7198 if ((control_dev != 0) 7199 && (page_index->page_flags & 7200 CTL_PAGE_FLAG_DISK_ONLY)) 7201 continue; 7202 7203 /* 7204 * Call the handler, if it exists, to update the 7205 * page to the latest values. 7206 */ 7207 if (page_index->sense_handler != NULL) 7208 page_index->sense_handler(ctsio, page_index,pc); 7209 7210 memcpy(ctsio->kern_data_ptr + data_used, 7211 page_index->page_data + 7212 (page_index->page_len * pc), 7213 page_index->page_len); 7214 data_used += page_index->page_len; 7215 } 7216 break; 7217 } 7218 } 7219 7220 ctsio->scsi_status = SCSI_STATUS_OK; 7221 7222 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7223 ctsio->be_move_done = ctl_config_move_done; 7224 ctl_datamove((union ctl_io *)ctsio); 7225 7226 return (CTL_RETVAL_COMPLETE); 7227} 7228 7229int 7230ctl_read_capacity(struct ctl_scsiio *ctsio) 7231{ 7232 struct scsi_read_capacity *cdb; 7233 struct scsi_read_capacity_data *data; 7234 struct ctl_lun *lun; 7235 uint32_t lba; 7236 7237 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7238 7239 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7240 7241 lba = scsi_4btoul(cdb->addr); 7242 if (((cdb->pmi & SRC_PMI) == 0) 7243 && (lba != 0)) { 7244 ctl_set_invalid_field(/*ctsio*/ ctsio, 7245 /*sks_valid*/ 1, 7246 /*command*/ 1, 7247 /*field*/ 2, 7248 /*bit_valid*/ 0, 7249 /*bit*/ 0); 7250 ctl_done((union ctl_io *)ctsio); 7251 return (CTL_RETVAL_COMPLETE); 7252 } 7253 7254 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7255 7256 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7257 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7258 ctsio->residual = 0; 7259 ctsio->kern_data_len = sizeof(*data); 7260 ctsio->kern_total_len = sizeof(*data); 7261 ctsio->kern_data_resid = 0; 7262 ctsio->kern_rel_offset = 0; 7263 ctsio->kern_sg_entries = 0; 7264 7265 /* 7266 * If the maximum LBA is greater than 0xfffffffe, the user must 7267 * issue a SERVICE ACTION IN (16) command, with the read capacity 7268 * serivce action set. 7269 */ 7270 if (lun->be_lun->maxlba > 0xfffffffe) 7271 scsi_ulto4b(0xffffffff, data->addr); 7272 else 7273 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7274 7275 /* 7276 * XXX KDM this may not be 512 bytes... 7277 */ 7278 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7279 7280 ctsio->scsi_status = SCSI_STATUS_OK; 7281 7282 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7283 ctsio->be_move_done = ctl_config_move_done; 7284 ctl_datamove((union ctl_io *)ctsio); 7285 7286 return (CTL_RETVAL_COMPLETE); 7287} 7288 7289int 7290ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7291{ 7292 struct scsi_read_capacity_16 *cdb; 7293 struct scsi_read_capacity_data_long *data; 7294 struct ctl_lun *lun; 7295 uint64_t lba; 7296 uint32_t alloc_len; 7297 7298 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7299 7300 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7301 7302 alloc_len = scsi_4btoul(cdb->alloc_len); 7303 lba = scsi_8btou64(cdb->addr); 7304 7305 if ((cdb->reladr & SRC16_PMI) 7306 && (lba != 0)) { 7307 ctl_set_invalid_field(/*ctsio*/ ctsio, 7308 /*sks_valid*/ 1, 7309 /*command*/ 1, 7310 /*field*/ 2, 7311 /*bit_valid*/ 0, 7312 /*bit*/ 0); 7313 ctl_done((union ctl_io *)ctsio); 7314 return (CTL_RETVAL_COMPLETE); 7315 } 7316 7317 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7318 7319 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7320 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7321 7322 if (sizeof(*data) < alloc_len) { 7323 ctsio->residual = alloc_len - sizeof(*data); 7324 ctsio->kern_data_len = sizeof(*data); 7325 ctsio->kern_total_len = sizeof(*data); 7326 } else { 7327 ctsio->residual = 0; 7328 ctsio->kern_data_len = alloc_len; 7329 ctsio->kern_total_len = alloc_len; 7330 } 7331 ctsio->kern_data_resid = 0; 7332 ctsio->kern_rel_offset = 0; 7333 ctsio->kern_sg_entries = 0; 7334 7335 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7336 /* XXX KDM this may not be 512 bytes... */ 7337 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7338 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7339 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7340 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7341 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7342 7343 ctsio->scsi_status = SCSI_STATUS_OK; 7344 7345 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7346 ctsio->be_move_done = ctl_config_move_done; 7347 ctl_datamove((union ctl_io *)ctsio); 7348 7349 return (CTL_RETVAL_COMPLETE); 7350} 7351 7352int 7353ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7354{ 7355 struct scsi_maintenance_in *cdb; 7356 int retval; 7357 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7358 int num_target_port_groups, num_target_ports, single; 7359 struct ctl_lun *lun; 7360 struct ctl_softc *softc; 7361 struct ctl_port *port; 7362 struct scsi_target_group_data *rtg_ptr; 7363 struct scsi_target_group_data_extended *rtg_ext_ptr; 7364 struct scsi_target_port_group_descriptor *tpg_desc; 7365 7366 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7367 7368 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7369 softc = control_softc; 7370 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7371 7372 retval = CTL_RETVAL_COMPLETE; 7373 7374 switch (cdb->byte2 & STG_PDF_MASK) { 7375 case STG_PDF_LENGTH: 7376 ext = 0; 7377 break; 7378 case STG_PDF_EXTENDED: 7379 ext = 1; 7380 break; 7381 default: 7382 ctl_set_invalid_field(/*ctsio*/ ctsio, 7383 /*sks_valid*/ 1, 7384 /*command*/ 1, 7385 /*field*/ 2, 7386 /*bit_valid*/ 1, 7387 /*bit*/ 5); 7388 ctl_done((union ctl_io *)ctsio); 7389 return(retval); 7390 } 7391 7392 single = ctl_is_single; 7393 if (single) 7394 num_target_port_groups = 1; 7395 else 7396 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7397 num_target_ports = 0; 7398 mtx_lock(&softc->ctl_lock); 7399 STAILQ_FOREACH(port, &softc->port_list, links) { 7400 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7401 continue; 7402 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7403 continue; 7404 num_target_ports++; 7405 } 7406 mtx_unlock(&softc->ctl_lock); 7407 7408 if (ext) 7409 total_len = sizeof(struct scsi_target_group_data_extended); 7410 else 7411 total_len = sizeof(struct scsi_target_group_data); 7412 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7413 num_target_port_groups + 7414 sizeof(struct scsi_target_port_descriptor) * 7415 num_target_ports * num_target_port_groups; 7416 7417 alloc_len = scsi_4btoul(cdb->length); 7418 7419 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7420 7421 ctsio->kern_sg_entries = 0; 7422 7423 if (total_len < alloc_len) { 7424 ctsio->residual = alloc_len - total_len; 7425 ctsio->kern_data_len = total_len; 7426 ctsio->kern_total_len = total_len; 7427 } else { 7428 ctsio->residual = 0; 7429 ctsio->kern_data_len = alloc_len; 7430 ctsio->kern_total_len = alloc_len; 7431 } 7432 ctsio->kern_data_resid = 0; 7433 ctsio->kern_rel_offset = 0; 7434 7435 if (ext) { 7436 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7437 ctsio->kern_data_ptr; 7438 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7439 rtg_ext_ptr->format_type = 0x10; 7440 rtg_ext_ptr->implicit_transition_time = 0; 7441 tpg_desc = &rtg_ext_ptr->groups[0]; 7442 } else { 7443 rtg_ptr = (struct scsi_target_group_data *) 7444 ctsio->kern_data_ptr; 7445 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7446 tpg_desc = &rtg_ptr->groups[0]; 7447 } 7448 7449 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7450 mtx_lock(&softc->ctl_lock); 7451 for (g = 0; g < num_target_port_groups; g++) { 7452 if (g == pg) 7453 tpg_desc->pref_state = TPG_PRIMARY | 7454 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7455 else 7456 tpg_desc->pref_state = 7457 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7458 tpg_desc->support = TPG_AO_SUP; 7459 if (!single) 7460 tpg_desc->support |= TPG_AN_SUP; 7461 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7462 tpg_desc->status = TPG_IMPLICIT; 7463 pc = 0; 7464 STAILQ_FOREACH(port, &softc->port_list, links) { 7465 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7466 continue; 7467 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7468 CTL_MAX_LUNS) 7469 continue; 7470 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7471 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7472 relative_target_port_identifier); 7473 pc++; 7474 } 7475 tpg_desc->target_port_count = pc; 7476 tpg_desc = (struct scsi_target_port_group_descriptor *) 7477 &tpg_desc->descriptors[pc]; 7478 } 7479 mtx_unlock(&softc->ctl_lock); 7480 7481 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7482 ctsio->be_move_done = ctl_config_move_done; 7483 7484 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7485 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7486 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7487 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7488 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7489 7490 ctl_datamove((union ctl_io *)ctsio); 7491 return(retval); 7492} 7493 7494int 7495ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7496{ 7497 struct ctl_lun *lun; 7498 struct scsi_report_supported_opcodes *cdb; 7499 const struct ctl_cmd_entry *entry, *sentry; 7500 struct scsi_report_supported_opcodes_all *all; 7501 struct scsi_report_supported_opcodes_descr *descr; 7502 struct scsi_report_supported_opcodes_one *one; 7503 int retval; 7504 int alloc_len, total_len; 7505 int opcode, service_action, i, j, num; 7506 7507 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7508 7509 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7510 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7511 7512 retval = CTL_RETVAL_COMPLETE; 7513 7514 opcode = cdb->requested_opcode; 7515 service_action = scsi_2btoul(cdb->requested_service_action); 7516 switch (cdb->options & RSO_OPTIONS_MASK) { 7517 case RSO_OPTIONS_ALL: 7518 num = 0; 7519 for (i = 0; i < 256; i++) { 7520 entry = &ctl_cmd_table[i]; 7521 if (entry->flags & CTL_CMD_FLAG_SA5) { 7522 for (j = 0; j < 32; j++) { 7523 sentry = &((const struct ctl_cmd_entry *) 7524 entry->execute)[j]; 7525 if (ctl_cmd_applicable( 7526 lun->be_lun->lun_type, sentry)) 7527 num++; 7528 } 7529 } else { 7530 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7531 entry)) 7532 num++; 7533 } 7534 } 7535 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7536 num * sizeof(struct scsi_report_supported_opcodes_descr); 7537 break; 7538 case RSO_OPTIONS_OC: 7539 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7540 ctl_set_invalid_field(/*ctsio*/ ctsio, 7541 /*sks_valid*/ 1, 7542 /*command*/ 1, 7543 /*field*/ 2, 7544 /*bit_valid*/ 1, 7545 /*bit*/ 2); 7546 ctl_done((union ctl_io *)ctsio); 7547 return (CTL_RETVAL_COMPLETE); 7548 } 7549 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7550 break; 7551 case RSO_OPTIONS_OC_SA: 7552 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7553 service_action >= 32) { 7554 ctl_set_invalid_field(/*ctsio*/ ctsio, 7555 /*sks_valid*/ 1, 7556 /*command*/ 1, 7557 /*field*/ 2, 7558 /*bit_valid*/ 1, 7559 /*bit*/ 2); 7560 ctl_done((union ctl_io *)ctsio); 7561 return (CTL_RETVAL_COMPLETE); 7562 } 7563 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7564 break; 7565 default: 7566 ctl_set_invalid_field(/*ctsio*/ ctsio, 7567 /*sks_valid*/ 1, 7568 /*command*/ 1, 7569 /*field*/ 2, 7570 /*bit_valid*/ 1, 7571 /*bit*/ 2); 7572 ctl_done((union ctl_io *)ctsio); 7573 return (CTL_RETVAL_COMPLETE); 7574 } 7575 7576 alloc_len = scsi_4btoul(cdb->length); 7577 7578 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7579 7580 ctsio->kern_sg_entries = 0; 7581 7582 if (total_len < alloc_len) { 7583 ctsio->residual = alloc_len - total_len; 7584 ctsio->kern_data_len = total_len; 7585 ctsio->kern_total_len = total_len; 7586 } else { 7587 ctsio->residual = 0; 7588 ctsio->kern_data_len = alloc_len; 7589 ctsio->kern_total_len = alloc_len; 7590 } 7591 ctsio->kern_data_resid = 0; 7592 ctsio->kern_rel_offset = 0; 7593 7594 switch (cdb->options & RSO_OPTIONS_MASK) { 7595 case RSO_OPTIONS_ALL: 7596 all = (struct scsi_report_supported_opcodes_all *) 7597 ctsio->kern_data_ptr; 7598 num = 0; 7599 for (i = 0; i < 256; i++) { 7600 entry = &ctl_cmd_table[i]; 7601 if (entry->flags & CTL_CMD_FLAG_SA5) { 7602 for (j = 0; j < 32; j++) { 7603 sentry = &((const struct ctl_cmd_entry *) 7604 entry->execute)[j]; 7605 if (!ctl_cmd_applicable( 7606 lun->be_lun->lun_type, sentry)) 7607 continue; 7608 descr = &all->descr[num++]; 7609 descr->opcode = i; 7610 scsi_ulto2b(j, descr->service_action); 7611 descr->flags = RSO_SERVACTV; 7612 scsi_ulto2b(sentry->length, 7613 descr->cdb_length); 7614 } 7615 } else { 7616 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7617 entry)) 7618 continue; 7619 descr = &all->descr[num++]; 7620 descr->opcode = i; 7621 scsi_ulto2b(0, descr->service_action); 7622 descr->flags = 0; 7623 scsi_ulto2b(entry->length, descr->cdb_length); 7624 } 7625 } 7626 scsi_ulto4b( 7627 num * sizeof(struct scsi_report_supported_opcodes_descr), 7628 all->length); 7629 break; 7630 case RSO_OPTIONS_OC: 7631 one = (struct scsi_report_supported_opcodes_one *) 7632 ctsio->kern_data_ptr; 7633 entry = &ctl_cmd_table[opcode]; 7634 goto fill_one; 7635 case RSO_OPTIONS_OC_SA: 7636 one = (struct scsi_report_supported_opcodes_one *) 7637 ctsio->kern_data_ptr; 7638 entry = &ctl_cmd_table[opcode]; 7639 entry = &((const struct ctl_cmd_entry *) 7640 entry->execute)[service_action]; 7641fill_one: 7642 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7643 one->support = 3; 7644 scsi_ulto2b(entry->length, one->cdb_length); 7645 one->cdb_usage[0] = opcode; 7646 memcpy(&one->cdb_usage[1], entry->usage, 7647 entry->length - 1); 7648 } else 7649 one->support = 1; 7650 break; 7651 } 7652 7653 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7654 ctsio->be_move_done = ctl_config_move_done; 7655 7656 ctl_datamove((union ctl_io *)ctsio); 7657 return(retval); 7658} 7659 7660int 7661ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7662{ 7663 struct ctl_lun *lun; 7664 struct scsi_report_supported_tmf *cdb; 7665 struct scsi_report_supported_tmf_data *data; 7666 int retval; 7667 int alloc_len, total_len; 7668 7669 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7670 7671 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7672 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7673 7674 retval = CTL_RETVAL_COMPLETE; 7675 7676 total_len = sizeof(struct scsi_report_supported_tmf_data); 7677 alloc_len = scsi_4btoul(cdb->length); 7678 7679 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7680 7681 ctsio->kern_sg_entries = 0; 7682 7683 if (total_len < alloc_len) { 7684 ctsio->residual = alloc_len - total_len; 7685 ctsio->kern_data_len = total_len; 7686 ctsio->kern_total_len = total_len; 7687 } else { 7688 ctsio->residual = 0; 7689 ctsio->kern_data_len = alloc_len; 7690 ctsio->kern_total_len = alloc_len; 7691 } 7692 ctsio->kern_data_resid = 0; 7693 ctsio->kern_rel_offset = 0; 7694 7695 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7696 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7697 data->byte2 |= RST_ITNRS; 7698 7699 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7700 ctsio->be_move_done = ctl_config_move_done; 7701 7702 ctl_datamove((union ctl_io *)ctsio); 7703 return (retval); 7704} 7705 7706int 7707ctl_report_timestamp(struct ctl_scsiio *ctsio) 7708{ 7709 struct ctl_lun *lun; 7710 struct scsi_report_timestamp *cdb; 7711 struct scsi_report_timestamp_data *data; 7712 struct timeval tv; 7713 int64_t timestamp; 7714 int retval; 7715 int alloc_len, total_len; 7716 7717 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7718 7719 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7720 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7721 7722 retval = CTL_RETVAL_COMPLETE; 7723 7724 total_len = sizeof(struct scsi_report_timestamp_data); 7725 alloc_len = scsi_4btoul(cdb->length); 7726 7727 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7728 7729 ctsio->kern_sg_entries = 0; 7730 7731 if (total_len < alloc_len) { 7732 ctsio->residual = alloc_len - total_len; 7733 ctsio->kern_data_len = total_len; 7734 ctsio->kern_total_len = total_len; 7735 } else { 7736 ctsio->residual = 0; 7737 ctsio->kern_data_len = alloc_len; 7738 ctsio->kern_total_len = alloc_len; 7739 } 7740 ctsio->kern_data_resid = 0; 7741 ctsio->kern_rel_offset = 0; 7742 7743 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7744 scsi_ulto2b(sizeof(*data) - 2, data->length); 7745 data->origin = RTS_ORIG_OUTSIDE; 7746 getmicrotime(&tv); 7747 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7748 scsi_ulto4b(timestamp >> 16, data->timestamp); 7749 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7750 7751 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7752 ctsio->be_move_done = ctl_config_move_done; 7753 7754 ctl_datamove((union ctl_io *)ctsio); 7755 return (retval); 7756} 7757 7758int 7759ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7760{ 7761 struct scsi_per_res_in *cdb; 7762 int alloc_len, total_len = 0; 7763 /* struct scsi_per_res_in_rsrv in_data; */ 7764 struct ctl_lun *lun; 7765 struct ctl_softc *softc; 7766 7767 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7768 7769 softc = control_softc; 7770 7771 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7772 7773 alloc_len = scsi_2btoul(cdb->length); 7774 7775 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7776 7777retry: 7778 mtx_lock(&lun->lun_lock); 7779 switch (cdb->action) { 7780 case SPRI_RK: /* read keys */ 7781 total_len = sizeof(struct scsi_per_res_in_keys) + 7782 lun->pr_key_count * 7783 sizeof(struct scsi_per_res_key); 7784 break; 7785 case SPRI_RR: /* read reservation */ 7786 if (lun->flags & CTL_LUN_PR_RESERVED) 7787 total_len = sizeof(struct scsi_per_res_in_rsrv); 7788 else 7789 total_len = sizeof(struct scsi_per_res_in_header); 7790 break; 7791 case SPRI_RC: /* report capabilities */ 7792 total_len = sizeof(struct scsi_per_res_cap); 7793 break; 7794 case SPRI_RS: /* read full status */ 7795 total_len = sizeof(struct scsi_per_res_in_header) + 7796 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7797 lun->pr_key_count; 7798 break; 7799 default: 7800 panic("Invalid PR type %x", cdb->action); 7801 } 7802 mtx_unlock(&lun->lun_lock); 7803 7804 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7805 7806 if (total_len < alloc_len) { 7807 ctsio->residual = alloc_len - total_len; 7808 ctsio->kern_data_len = total_len; 7809 ctsio->kern_total_len = total_len; 7810 } else { 7811 ctsio->residual = 0; 7812 ctsio->kern_data_len = alloc_len; 7813 ctsio->kern_total_len = alloc_len; 7814 } 7815 7816 ctsio->kern_data_resid = 0; 7817 ctsio->kern_rel_offset = 0; 7818 ctsio->kern_sg_entries = 0; 7819 7820 mtx_lock(&lun->lun_lock); 7821 switch (cdb->action) { 7822 case SPRI_RK: { // read keys 7823 struct scsi_per_res_in_keys *res_keys; 7824 int i, key_count; 7825 7826 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7827 7828 /* 7829 * We had to drop the lock to allocate our buffer, which 7830 * leaves time for someone to come in with another 7831 * persistent reservation. (That is unlikely, though, 7832 * since this should be the only persistent reservation 7833 * command active right now.) 7834 */ 7835 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7836 (lun->pr_key_count * 7837 sizeof(struct scsi_per_res_key)))){ 7838 mtx_unlock(&lun->lun_lock); 7839 free(ctsio->kern_data_ptr, M_CTL); 7840 printf("%s: reservation length changed, retrying\n", 7841 __func__); 7842 goto retry; 7843 } 7844 7845 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7846 7847 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7848 lun->pr_key_count, res_keys->header.length); 7849 7850 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7851 if (!lun->per_res[i].registered) 7852 continue; 7853 7854 /* 7855 * We used lun->pr_key_count to calculate the 7856 * size to allocate. If it turns out the number of 7857 * initiators with the registered flag set is 7858 * larger than that (i.e. they haven't been kept in 7859 * sync), we've got a problem. 7860 */ 7861 if (key_count >= lun->pr_key_count) { 7862#ifdef NEEDTOPORT 7863 csevent_log(CSC_CTL | CSC_SHELF_SW | 7864 CTL_PR_ERROR, 7865 csevent_LogType_Fault, 7866 csevent_AlertLevel_Yellow, 7867 csevent_FRU_ShelfController, 7868 csevent_FRU_Firmware, 7869 csevent_FRU_Unknown, 7870 "registered keys %d >= key " 7871 "count %d", key_count, 7872 lun->pr_key_count); 7873#endif 7874 key_count++; 7875 continue; 7876 } 7877 memcpy(res_keys->keys[key_count].key, 7878 lun->per_res[i].res_key.key, 7879 ctl_min(sizeof(res_keys->keys[key_count].key), 7880 sizeof(lun->per_res[i].res_key))); 7881 key_count++; 7882 } 7883 break; 7884 } 7885 case SPRI_RR: { // read reservation 7886 struct scsi_per_res_in_rsrv *res; 7887 int tmp_len, header_only; 7888 7889 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7890 7891 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7892 7893 if (lun->flags & CTL_LUN_PR_RESERVED) 7894 { 7895 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7896 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7897 res->header.length); 7898 header_only = 0; 7899 } else { 7900 tmp_len = sizeof(struct scsi_per_res_in_header); 7901 scsi_ulto4b(0, res->header.length); 7902 header_only = 1; 7903 } 7904 7905 /* 7906 * We had to drop the lock to allocate our buffer, which 7907 * leaves time for someone to come in with another 7908 * persistent reservation. (That is unlikely, though, 7909 * since this should be the only persistent reservation 7910 * command active right now.) 7911 */ 7912 if (tmp_len != total_len) { 7913 mtx_unlock(&lun->lun_lock); 7914 free(ctsio->kern_data_ptr, M_CTL); 7915 printf("%s: reservation status changed, retrying\n", 7916 __func__); 7917 goto retry; 7918 } 7919 7920 /* 7921 * No reservation held, so we're done. 7922 */ 7923 if (header_only != 0) 7924 break; 7925 7926 /* 7927 * If the registration is an All Registrants type, the key 7928 * is 0, since it doesn't really matter. 7929 */ 7930 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7931 memcpy(res->data.reservation, 7932 &lun->per_res[lun->pr_res_idx].res_key, 7933 sizeof(struct scsi_per_res_key)); 7934 } 7935 res->data.scopetype = lun->res_type; 7936 break; 7937 } 7938 case SPRI_RC: //report capabilities 7939 { 7940 struct scsi_per_res_cap *res_cap; 7941 uint16_t type_mask; 7942 7943 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7944 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7945 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7946 type_mask = SPRI_TM_WR_EX_AR | 7947 SPRI_TM_EX_AC_RO | 7948 SPRI_TM_WR_EX_RO | 7949 SPRI_TM_EX_AC | 7950 SPRI_TM_WR_EX | 7951 SPRI_TM_EX_AC_AR; 7952 scsi_ulto2b(type_mask, res_cap->type_mask); 7953 break; 7954 } 7955 case SPRI_RS: { // read full status 7956 struct scsi_per_res_in_full *res_status; 7957 struct scsi_per_res_in_full_desc *res_desc; 7958 struct ctl_port *port; 7959 int i, len; 7960 7961 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7962 7963 /* 7964 * We had to drop the lock to allocate our buffer, which 7965 * leaves time for someone to come in with another 7966 * persistent reservation. (That is unlikely, though, 7967 * since this should be the only persistent reservation 7968 * command active right now.) 7969 */ 7970 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7971 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7972 lun->pr_key_count)){ 7973 mtx_unlock(&lun->lun_lock); 7974 free(ctsio->kern_data_ptr, M_CTL); 7975 printf("%s: reservation length changed, retrying\n", 7976 __func__); 7977 goto retry; 7978 } 7979 7980 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7981 7982 res_desc = &res_status->desc[0]; 7983 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7984 if (!lun->per_res[i].registered) 7985 continue; 7986 7987 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7988 sizeof(res_desc->res_key)); 7989 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7990 (lun->pr_res_idx == i || 7991 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7992 res_desc->flags = SPRI_FULL_R_HOLDER; 7993 res_desc->scopetype = lun->res_type; 7994 } 7995 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7996 res_desc->rel_trgt_port_id); 7997 len = 0; 7998 port = softc->ctl_ports[ 7999 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 8000 if (port != NULL) 8001 len = ctl_create_iid(port, 8002 i % CTL_MAX_INIT_PER_PORT, 8003 res_desc->transport_id); 8004 scsi_ulto4b(len, res_desc->additional_length); 8005 res_desc = (struct scsi_per_res_in_full_desc *) 8006 &res_desc->transport_id[len]; 8007 } 8008 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 8009 res_status->header.length); 8010 break; 8011 } 8012 default: 8013 /* 8014 * This is a bug, because we just checked for this above, 8015 * and should have returned an error. 8016 */ 8017 panic("Invalid PR type %x", cdb->action); 8018 break; /* NOTREACHED */ 8019 } 8020 mtx_unlock(&lun->lun_lock); 8021 8022 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8023 ctsio->be_move_done = ctl_config_move_done; 8024 8025 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8026 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8027 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8028 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8029 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8030 8031 ctl_datamove((union ctl_io *)ctsio); 8032 8033 return (CTL_RETVAL_COMPLETE); 8034} 8035 8036/* 8037 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8038 * it should return. 8039 */ 8040static int 8041ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8042 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8043 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8044 struct scsi_per_res_out_parms* param) 8045{ 8046 union ctl_ha_msg persis_io; 8047 int retval, i; 8048 int isc_retval; 8049 8050 retval = 0; 8051 8052 mtx_lock(&lun->lun_lock); 8053 if (sa_res_key == 0) { 8054 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8055 /* validate scope and type */ 8056 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8057 SPR_LU_SCOPE) { 8058 mtx_unlock(&lun->lun_lock); 8059 ctl_set_invalid_field(/*ctsio*/ ctsio, 8060 /*sks_valid*/ 1, 8061 /*command*/ 1, 8062 /*field*/ 2, 8063 /*bit_valid*/ 1, 8064 /*bit*/ 4); 8065 ctl_done((union ctl_io *)ctsio); 8066 return (1); 8067 } 8068 8069 if (type>8 || type==2 || type==4 || type==0) { 8070 mtx_unlock(&lun->lun_lock); 8071 ctl_set_invalid_field(/*ctsio*/ ctsio, 8072 /*sks_valid*/ 1, 8073 /*command*/ 1, 8074 /*field*/ 2, 8075 /*bit_valid*/ 1, 8076 /*bit*/ 0); 8077 ctl_done((union ctl_io *)ctsio); 8078 return (1); 8079 } 8080 8081 /* temporarily unregister this nexus */ 8082 lun->per_res[residx].registered = 0; 8083 8084 /* 8085 * Unregister everybody else and build UA for 8086 * them 8087 */ 8088 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8089 if (lun->per_res[i].registered == 0) 8090 continue; 8091 8092 if (!persis_offset 8093 && i <CTL_MAX_INITIATORS) 8094 lun->pending_ua[i] |= 8095 CTL_UA_REG_PREEMPT; 8096 else if (persis_offset 8097 && i >= persis_offset) 8098 lun->pending_ua[i-persis_offset] |= 8099 CTL_UA_REG_PREEMPT; 8100 lun->per_res[i].registered = 0; 8101 memset(&lun->per_res[i].res_key, 0, 8102 sizeof(struct scsi_per_res_key)); 8103 } 8104 lun->per_res[residx].registered = 1; 8105 lun->pr_key_count = 1; 8106 lun->res_type = type; 8107 if (lun->res_type != SPR_TYPE_WR_EX_AR 8108 && lun->res_type != SPR_TYPE_EX_AC_AR) 8109 lun->pr_res_idx = residx; 8110 8111 /* send msg to other side */ 8112 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8113 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8114 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8115 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8116 persis_io.pr.pr_info.res_type = type; 8117 memcpy(persis_io.pr.pr_info.sa_res_key, 8118 param->serv_act_res_key, 8119 sizeof(param->serv_act_res_key)); 8120 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8121 &persis_io, sizeof(persis_io), 0)) > 8122 CTL_HA_STATUS_SUCCESS) { 8123 printf("CTL:Persis Out error returned " 8124 "from ctl_ha_msg_send %d\n", 8125 isc_retval); 8126 } 8127 } else { 8128 /* not all registrants */ 8129 mtx_unlock(&lun->lun_lock); 8130 free(ctsio->kern_data_ptr, M_CTL); 8131 ctl_set_invalid_field(ctsio, 8132 /*sks_valid*/ 1, 8133 /*command*/ 0, 8134 /*field*/ 8, 8135 /*bit_valid*/ 0, 8136 /*bit*/ 0); 8137 ctl_done((union ctl_io *)ctsio); 8138 return (1); 8139 } 8140 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8141 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8142 int found = 0; 8143 8144 if (res_key == sa_res_key) { 8145 /* special case */ 8146 /* 8147 * The spec implies this is not good but doesn't 8148 * say what to do. There are two choices either 8149 * generate a res conflict or check condition 8150 * with illegal field in parameter data. Since 8151 * that is what is done when the sa_res_key is 8152 * zero I'll take that approach since this has 8153 * to do with the sa_res_key. 8154 */ 8155 mtx_unlock(&lun->lun_lock); 8156 free(ctsio->kern_data_ptr, M_CTL); 8157 ctl_set_invalid_field(ctsio, 8158 /*sks_valid*/ 1, 8159 /*command*/ 0, 8160 /*field*/ 8, 8161 /*bit_valid*/ 0, 8162 /*bit*/ 0); 8163 ctl_done((union ctl_io *)ctsio); 8164 return (1); 8165 } 8166 8167 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8168 if (lun->per_res[i].registered 8169 && memcmp(param->serv_act_res_key, 8170 lun->per_res[i].res_key.key, 8171 sizeof(struct scsi_per_res_key)) != 0) 8172 continue; 8173 8174 found = 1; 8175 lun->per_res[i].registered = 0; 8176 memset(&lun->per_res[i].res_key, 0, 8177 sizeof(struct scsi_per_res_key)); 8178 lun->pr_key_count--; 8179 8180 if (!persis_offset && i < CTL_MAX_INITIATORS) 8181 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8182 else if (persis_offset && i >= persis_offset) 8183 lun->pending_ua[i-persis_offset] |= 8184 CTL_UA_REG_PREEMPT; 8185 } 8186 if (!found) { 8187 mtx_unlock(&lun->lun_lock); 8188 free(ctsio->kern_data_ptr, M_CTL); 8189 ctl_set_reservation_conflict(ctsio); 8190 ctl_done((union ctl_io *)ctsio); 8191 return (CTL_RETVAL_COMPLETE); 8192 } 8193 /* send msg to other side */ 8194 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8195 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8196 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8197 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8198 persis_io.pr.pr_info.res_type = type; 8199 memcpy(persis_io.pr.pr_info.sa_res_key, 8200 param->serv_act_res_key, 8201 sizeof(param->serv_act_res_key)); 8202 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8203 &persis_io, sizeof(persis_io), 0)) > 8204 CTL_HA_STATUS_SUCCESS) { 8205 printf("CTL:Persis Out error returned from " 8206 "ctl_ha_msg_send %d\n", isc_retval); 8207 } 8208 } else { 8209 /* Reserved but not all registrants */ 8210 /* sa_res_key is res holder */ 8211 if (memcmp(param->serv_act_res_key, 8212 lun->per_res[lun->pr_res_idx].res_key.key, 8213 sizeof(struct scsi_per_res_key)) == 0) { 8214 /* validate scope and type */ 8215 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8216 SPR_LU_SCOPE) { 8217 mtx_unlock(&lun->lun_lock); 8218 ctl_set_invalid_field(/*ctsio*/ ctsio, 8219 /*sks_valid*/ 1, 8220 /*command*/ 1, 8221 /*field*/ 2, 8222 /*bit_valid*/ 1, 8223 /*bit*/ 4); 8224 ctl_done((union ctl_io *)ctsio); 8225 return (1); 8226 } 8227 8228 if (type>8 || type==2 || type==4 || type==0) { 8229 mtx_unlock(&lun->lun_lock); 8230 ctl_set_invalid_field(/*ctsio*/ ctsio, 8231 /*sks_valid*/ 1, 8232 /*command*/ 1, 8233 /*field*/ 2, 8234 /*bit_valid*/ 1, 8235 /*bit*/ 0); 8236 ctl_done((union ctl_io *)ctsio); 8237 return (1); 8238 } 8239 8240 /* 8241 * Do the following: 8242 * if sa_res_key != res_key remove all 8243 * registrants w/sa_res_key and generate UA 8244 * for these registrants(Registrations 8245 * Preempted) if it wasn't an exclusive 8246 * reservation generate UA(Reservations 8247 * Preempted) for all other registered nexuses 8248 * if the type has changed. Establish the new 8249 * reservation and holder. If res_key and 8250 * sa_res_key are the same do the above 8251 * except don't unregister the res holder. 8252 */ 8253 8254 /* 8255 * Temporarily unregister so it won't get 8256 * removed or UA generated 8257 */ 8258 lun->per_res[residx].registered = 0; 8259 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8260 if (lun->per_res[i].registered == 0) 8261 continue; 8262 8263 if (memcmp(param->serv_act_res_key, 8264 lun->per_res[i].res_key.key, 8265 sizeof(struct scsi_per_res_key)) == 0) { 8266 lun->per_res[i].registered = 0; 8267 memset(&lun->per_res[i].res_key, 8268 0, 8269 sizeof(struct scsi_per_res_key)); 8270 lun->pr_key_count--; 8271 8272 if (!persis_offset 8273 && i < CTL_MAX_INITIATORS) 8274 lun->pending_ua[i] |= 8275 CTL_UA_REG_PREEMPT; 8276 else if (persis_offset 8277 && i >= persis_offset) 8278 lun->pending_ua[i-persis_offset] |= 8279 CTL_UA_REG_PREEMPT; 8280 } else if (type != lun->res_type 8281 && (lun->res_type == SPR_TYPE_WR_EX_RO 8282 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8283 if (!persis_offset 8284 && i < CTL_MAX_INITIATORS) 8285 lun->pending_ua[i] |= 8286 CTL_UA_RES_RELEASE; 8287 else if (persis_offset 8288 && i >= persis_offset) 8289 lun->pending_ua[ 8290 i-persis_offset] |= 8291 CTL_UA_RES_RELEASE; 8292 } 8293 } 8294 lun->per_res[residx].registered = 1; 8295 lun->res_type = type; 8296 if (lun->res_type != SPR_TYPE_WR_EX_AR 8297 && lun->res_type != SPR_TYPE_EX_AC_AR) 8298 lun->pr_res_idx = residx; 8299 else 8300 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8301 8302 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8303 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8304 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8305 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8306 persis_io.pr.pr_info.res_type = type; 8307 memcpy(persis_io.pr.pr_info.sa_res_key, 8308 param->serv_act_res_key, 8309 sizeof(param->serv_act_res_key)); 8310 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8311 &persis_io, sizeof(persis_io), 0)) > 8312 CTL_HA_STATUS_SUCCESS) { 8313 printf("CTL:Persis Out error returned " 8314 "from ctl_ha_msg_send %d\n", 8315 isc_retval); 8316 } 8317 } else { 8318 /* 8319 * sa_res_key is not the res holder just 8320 * remove registrants 8321 */ 8322 int found=0; 8323 8324 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8325 if (memcmp(param->serv_act_res_key, 8326 lun->per_res[i].res_key.key, 8327 sizeof(struct scsi_per_res_key)) != 0) 8328 continue; 8329 8330 found = 1; 8331 lun->per_res[i].registered = 0; 8332 memset(&lun->per_res[i].res_key, 0, 8333 sizeof(struct scsi_per_res_key)); 8334 lun->pr_key_count--; 8335 8336 if (!persis_offset 8337 && i < CTL_MAX_INITIATORS) 8338 lun->pending_ua[i] |= 8339 CTL_UA_REG_PREEMPT; 8340 else if (persis_offset 8341 && i >= persis_offset) 8342 lun->pending_ua[i-persis_offset] |= 8343 CTL_UA_REG_PREEMPT; 8344 } 8345 8346 if (!found) { 8347 mtx_unlock(&lun->lun_lock); 8348 free(ctsio->kern_data_ptr, M_CTL); 8349 ctl_set_reservation_conflict(ctsio); 8350 ctl_done((union ctl_io *)ctsio); 8351 return (1); 8352 } 8353 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8354 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8355 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8356 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8357 persis_io.pr.pr_info.res_type = type; 8358 memcpy(persis_io.pr.pr_info.sa_res_key, 8359 param->serv_act_res_key, 8360 sizeof(param->serv_act_res_key)); 8361 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8362 &persis_io, sizeof(persis_io), 0)) > 8363 CTL_HA_STATUS_SUCCESS) { 8364 printf("CTL:Persis Out error returned " 8365 "from ctl_ha_msg_send %d\n", 8366 isc_retval); 8367 } 8368 } 8369 } 8370 8371 lun->PRGeneration++; 8372 mtx_unlock(&lun->lun_lock); 8373 8374 return (retval); 8375} 8376 8377static void 8378ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8379{ 8380 int i; 8381 8382 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8383 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8384 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8385 msg->pr.pr_info.sa_res_key, 8386 sizeof(struct scsi_per_res_key)) != 0) { 8387 uint64_t sa_res_key; 8388 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8389 8390 if (sa_res_key == 0) { 8391 /* temporarily unregister this nexus */ 8392 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8393 8394 /* 8395 * Unregister everybody else and build UA for 8396 * them 8397 */ 8398 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8399 if (lun->per_res[i].registered == 0) 8400 continue; 8401 8402 if (!persis_offset 8403 && i < CTL_MAX_INITIATORS) 8404 lun->pending_ua[i] |= 8405 CTL_UA_REG_PREEMPT; 8406 else if (persis_offset && i >= persis_offset) 8407 lun->pending_ua[i - persis_offset] |= 8408 CTL_UA_REG_PREEMPT; 8409 lun->per_res[i].registered = 0; 8410 memset(&lun->per_res[i].res_key, 0, 8411 sizeof(struct scsi_per_res_key)); 8412 } 8413 8414 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8415 lun->pr_key_count = 1; 8416 lun->res_type = msg->pr.pr_info.res_type; 8417 if (lun->res_type != SPR_TYPE_WR_EX_AR 8418 && lun->res_type != SPR_TYPE_EX_AC_AR) 8419 lun->pr_res_idx = msg->pr.pr_info.residx; 8420 } else { 8421 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8422 if (memcmp(msg->pr.pr_info.sa_res_key, 8423 lun->per_res[i].res_key.key, 8424 sizeof(struct scsi_per_res_key)) != 0) 8425 continue; 8426 8427 lun->per_res[i].registered = 0; 8428 memset(&lun->per_res[i].res_key, 0, 8429 sizeof(struct scsi_per_res_key)); 8430 lun->pr_key_count--; 8431 8432 if (!persis_offset 8433 && i < persis_offset) 8434 lun->pending_ua[i] |= 8435 CTL_UA_REG_PREEMPT; 8436 else if (persis_offset 8437 && i >= persis_offset) 8438 lun->pending_ua[i - persis_offset] |= 8439 CTL_UA_REG_PREEMPT; 8440 } 8441 } 8442 } else { 8443 /* 8444 * Temporarily unregister so it won't get removed 8445 * or UA generated 8446 */ 8447 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8448 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8449 if (lun->per_res[i].registered == 0) 8450 continue; 8451 8452 if (memcmp(msg->pr.pr_info.sa_res_key, 8453 lun->per_res[i].res_key.key, 8454 sizeof(struct scsi_per_res_key)) == 0) { 8455 lun->per_res[i].registered = 0; 8456 memset(&lun->per_res[i].res_key, 0, 8457 sizeof(struct scsi_per_res_key)); 8458 lun->pr_key_count--; 8459 if (!persis_offset 8460 && i < CTL_MAX_INITIATORS) 8461 lun->pending_ua[i] |= 8462 CTL_UA_REG_PREEMPT; 8463 else if (persis_offset 8464 && i >= persis_offset) 8465 lun->pending_ua[i - persis_offset] |= 8466 CTL_UA_REG_PREEMPT; 8467 } else if (msg->pr.pr_info.res_type != lun->res_type 8468 && (lun->res_type == SPR_TYPE_WR_EX_RO 8469 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8470 if (!persis_offset 8471 && i < persis_offset) 8472 lun->pending_ua[i] |= 8473 CTL_UA_RES_RELEASE; 8474 else if (persis_offset 8475 && i >= persis_offset) 8476 lun->pending_ua[i - persis_offset] |= 8477 CTL_UA_RES_RELEASE; 8478 } 8479 } 8480 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8481 lun->res_type = msg->pr.pr_info.res_type; 8482 if (lun->res_type != SPR_TYPE_WR_EX_AR 8483 && lun->res_type != SPR_TYPE_EX_AC_AR) 8484 lun->pr_res_idx = msg->pr.pr_info.residx; 8485 else 8486 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8487 } 8488 lun->PRGeneration++; 8489 8490} 8491 8492 8493int 8494ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8495{ 8496 int retval; 8497 int isc_retval; 8498 u_int32_t param_len; 8499 struct scsi_per_res_out *cdb; 8500 struct ctl_lun *lun; 8501 struct scsi_per_res_out_parms* param; 8502 struct ctl_softc *softc; 8503 uint32_t residx; 8504 uint64_t res_key, sa_res_key; 8505 uint8_t type; 8506 union ctl_ha_msg persis_io; 8507 int i; 8508 8509 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8510 8511 retval = CTL_RETVAL_COMPLETE; 8512 8513 softc = control_softc; 8514 8515 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8516 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8517 8518 /* 8519 * We only support whole-LUN scope. The scope & type are ignored for 8520 * register, register and ignore existing key and clear. 8521 * We sometimes ignore scope and type on preempts too!! 8522 * Verify reservation type here as well. 8523 */ 8524 type = cdb->scope_type & SPR_TYPE_MASK; 8525 if ((cdb->action == SPRO_RESERVE) 8526 || (cdb->action == SPRO_RELEASE)) { 8527 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8528 ctl_set_invalid_field(/*ctsio*/ ctsio, 8529 /*sks_valid*/ 1, 8530 /*command*/ 1, 8531 /*field*/ 2, 8532 /*bit_valid*/ 1, 8533 /*bit*/ 4); 8534 ctl_done((union ctl_io *)ctsio); 8535 return (CTL_RETVAL_COMPLETE); 8536 } 8537 8538 if (type>8 || type==2 || type==4 || type==0) { 8539 ctl_set_invalid_field(/*ctsio*/ ctsio, 8540 /*sks_valid*/ 1, 8541 /*command*/ 1, 8542 /*field*/ 2, 8543 /*bit_valid*/ 1, 8544 /*bit*/ 0); 8545 ctl_done((union ctl_io *)ctsio); 8546 return (CTL_RETVAL_COMPLETE); 8547 } 8548 } 8549 8550 param_len = scsi_4btoul(cdb->length); 8551 8552 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8553 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8554 ctsio->kern_data_len = param_len; 8555 ctsio->kern_total_len = param_len; 8556 ctsio->kern_data_resid = 0; 8557 ctsio->kern_rel_offset = 0; 8558 ctsio->kern_sg_entries = 0; 8559 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8560 ctsio->be_move_done = ctl_config_move_done; 8561 ctl_datamove((union ctl_io *)ctsio); 8562 8563 return (CTL_RETVAL_COMPLETE); 8564 } 8565 8566 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8567 8568 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8569 res_key = scsi_8btou64(param->res_key.key); 8570 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8571 8572 /* 8573 * Validate the reservation key here except for SPRO_REG_IGNO 8574 * This must be done for all other service actions 8575 */ 8576 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8577 mtx_lock(&lun->lun_lock); 8578 if (lun->per_res[residx].registered) { 8579 if (memcmp(param->res_key.key, 8580 lun->per_res[residx].res_key.key, 8581 ctl_min(sizeof(param->res_key), 8582 sizeof(lun->per_res[residx].res_key))) != 0) { 8583 /* 8584 * The current key passed in doesn't match 8585 * the one the initiator previously 8586 * registered. 8587 */ 8588 mtx_unlock(&lun->lun_lock); 8589 free(ctsio->kern_data_ptr, M_CTL); 8590 ctl_set_reservation_conflict(ctsio); 8591 ctl_done((union ctl_io *)ctsio); 8592 return (CTL_RETVAL_COMPLETE); 8593 } 8594 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8595 /* 8596 * We are not registered 8597 */ 8598 mtx_unlock(&lun->lun_lock); 8599 free(ctsio->kern_data_ptr, M_CTL); 8600 ctl_set_reservation_conflict(ctsio); 8601 ctl_done((union ctl_io *)ctsio); 8602 return (CTL_RETVAL_COMPLETE); 8603 } else if (res_key != 0) { 8604 /* 8605 * We are not registered and trying to register but 8606 * the register key isn't zero. 8607 */ 8608 mtx_unlock(&lun->lun_lock); 8609 free(ctsio->kern_data_ptr, M_CTL); 8610 ctl_set_reservation_conflict(ctsio); 8611 ctl_done((union ctl_io *)ctsio); 8612 return (CTL_RETVAL_COMPLETE); 8613 } 8614 mtx_unlock(&lun->lun_lock); 8615 } 8616 8617 switch (cdb->action & SPRO_ACTION_MASK) { 8618 case SPRO_REGISTER: 8619 case SPRO_REG_IGNO: { 8620 8621#if 0 8622 printf("Registration received\n"); 8623#endif 8624 8625 /* 8626 * We don't support any of these options, as we report in 8627 * the read capabilities request (see 8628 * ctl_persistent_reserve_in(), above). 8629 */ 8630 if ((param->flags & SPR_SPEC_I_PT) 8631 || (param->flags & SPR_ALL_TG_PT) 8632 || (param->flags & SPR_APTPL)) { 8633 int bit_ptr; 8634 8635 if (param->flags & SPR_APTPL) 8636 bit_ptr = 0; 8637 else if (param->flags & SPR_ALL_TG_PT) 8638 bit_ptr = 2; 8639 else /* SPR_SPEC_I_PT */ 8640 bit_ptr = 3; 8641 8642 free(ctsio->kern_data_ptr, M_CTL); 8643 ctl_set_invalid_field(ctsio, 8644 /*sks_valid*/ 1, 8645 /*command*/ 0, 8646 /*field*/ 20, 8647 /*bit_valid*/ 1, 8648 /*bit*/ bit_ptr); 8649 ctl_done((union ctl_io *)ctsio); 8650 return (CTL_RETVAL_COMPLETE); 8651 } 8652 8653 mtx_lock(&lun->lun_lock); 8654 8655 /* 8656 * The initiator wants to clear the 8657 * key/unregister. 8658 */ 8659 if (sa_res_key == 0) { 8660 if ((res_key == 0 8661 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8662 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8663 && !lun->per_res[residx].registered)) { 8664 mtx_unlock(&lun->lun_lock); 8665 goto done; 8666 } 8667 8668 lun->per_res[residx].registered = 0; 8669 memset(&lun->per_res[residx].res_key, 8670 0, sizeof(lun->per_res[residx].res_key)); 8671 lun->pr_key_count--; 8672 8673 if (residx == lun->pr_res_idx) { 8674 lun->flags &= ~CTL_LUN_PR_RESERVED; 8675 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8676 8677 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8678 || lun->res_type == SPR_TYPE_EX_AC_RO) 8679 && lun->pr_key_count) { 8680 /* 8681 * If the reservation is a registrants 8682 * only type we need to generate a UA 8683 * for other registered inits. The 8684 * sense code should be RESERVATIONS 8685 * RELEASED 8686 */ 8687 8688 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8689 if (lun->per_res[ 8690 i+persis_offset].registered 8691 == 0) 8692 continue; 8693 lun->pending_ua[i] |= 8694 CTL_UA_RES_RELEASE; 8695 } 8696 } 8697 lun->res_type = 0; 8698 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8699 if (lun->pr_key_count==0) { 8700 lun->flags &= ~CTL_LUN_PR_RESERVED; 8701 lun->res_type = 0; 8702 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8703 } 8704 } 8705 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8706 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8707 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8708 persis_io.pr.pr_info.residx = residx; 8709 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8710 &persis_io, sizeof(persis_io), 0 )) > 8711 CTL_HA_STATUS_SUCCESS) { 8712 printf("CTL:Persis Out error returned from " 8713 "ctl_ha_msg_send %d\n", isc_retval); 8714 } 8715 } else /* sa_res_key != 0 */ { 8716 8717 /* 8718 * If we aren't registered currently then increment 8719 * the key count and set the registered flag. 8720 */ 8721 if (!lun->per_res[residx].registered) { 8722 lun->pr_key_count++; 8723 lun->per_res[residx].registered = 1; 8724 } 8725 8726 memcpy(&lun->per_res[residx].res_key, 8727 param->serv_act_res_key, 8728 ctl_min(sizeof(param->serv_act_res_key), 8729 sizeof(lun->per_res[residx].res_key))); 8730 8731 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8732 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8733 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8734 persis_io.pr.pr_info.residx = residx; 8735 memcpy(persis_io.pr.pr_info.sa_res_key, 8736 param->serv_act_res_key, 8737 sizeof(param->serv_act_res_key)); 8738 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8739 &persis_io, sizeof(persis_io), 0)) > 8740 CTL_HA_STATUS_SUCCESS) { 8741 printf("CTL:Persis Out error returned from " 8742 "ctl_ha_msg_send %d\n", isc_retval); 8743 } 8744 } 8745 lun->PRGeneration++; 8746 mtx_unlock(&lun->lun_lock); 8747 8748 break; 8749 } 8750 case SPRO_RESERVE: 8751#if 0 8752 printf("Reserve executed type %d\n", type); 8753#endif 8754 mtx_lock(&lun->lun_lock); 8755 if (lun->flags & CTL_LUN_PR_RESERVED) { 8756 /* 8757 * if this isn't the reservation holder and it's 8758 * not a "all registrants" type or if the type is 8759 * different then we have a conflict 8760 */ 8761 if ((lun->pr_res_idx != residx 8762 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8763 || lun->res_type != type) { 8764 mtx_unlock(&lun->lun_lock); 8765 free(ctsio->kern_data_ptr, M_CTL); 8766 ctl_set_reservation_conflict(ctsio); 8767 ctl_done((union ctl_io *)ctsio); 8768 return (CTL_RETVAL_COMPLETE); 8769 } 8770 mtx_unlock(&lun->lun_lock); 8771 } else /* create a reservation */ { 8772 /* 8773 * If it's not an "all registrants" type record 8774 * reservation holder 8775 */ 8776 if (type != SPR_TYPE_WR_EX_AR 8777 && type != SPR_TYPE_EX_AC_AR) 8778 lun->pr_res_idx = residx; /* Res holder */ 8779 else 8780 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8781 8782 lun->flags |= CTL_LUN_PR_RESERVED; 8783 lun->res_type = type; 8784 8785 mtx_unlock(&lun->lun_lock); 8786 8787 /* send msg to other side */ 8788 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8789 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8790 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8791 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8792 persis_io.pr.pr_info.res_type = type; 8793 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8794 &persis_io, sizeof(persis_io), 0)) > 8795 CTL_HA_STATUS_SUCCESS) { 8796 printf("CTL:Persis Out error returned from " 8797 "ctl_ha_msg_send %d\n", isc_retval); 8798 } 8799 } 8800 break; 8801 8802 case SPRO_RELEASE: 8803 mtx_lock(&lun->lun_lock); 8804 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8805 /* No reservation exists return good status */ 8806 mtx_unlock(&lun->lun_lock); 8807 goto done; 8808 } 8809 /* 8810 * Is this nexus a reservation holder? 8811 */ 8812 if (lun->pr_res_idx != residx 8813 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8814 /* 8815 * not a res holder return good status but 8816 * do nothing 8817 */ 8818 mtx_unlock(&lun->lun_lock); 8819 goto done; 8820 } 8821 8822 if (lun->res_type != type) { 8823 mtx_unlock(&lun->lun_lock); 8824 free(ctsio->kern_data_ptr, M_CTL); 8825 ctl_set_illegal_pr_release(ctsio); 8826 ctl_done((union ctl_io *)ctsio); 8827 return (CTL_RETVAL_COMPLETE); 8828 } 8829 8830 /* okay to release */ 8831 lun->flags &= ~CTL_LUN_PR_RESERVED; 8832 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8833 lun->res_type = 0; 8834 8835 /* 8836 * if this isn't an exclusive access 8837 * res generate UA for all other 8838 * registrants. 8839 */ 8840 if (type != SPR_TYPE_EX_AC 8841 && type != SPR_TYPE_WR_EX) { 8842 /* 8843 * temporarily unregister so we don't generate UA 8844 */ 8845 lun->per_res[residx].registered = 0; 8846 8847 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8848 if (lun->per_res[i+persis_offset].registered 8849 == 0) 8850 continue; 8851 lun->pending_ua[i] |= 8852 CTL_UA_RES_RELEASE; 8853 } 8854 8855 lun->per_res[residx].registered = 1; 8856 } 8857 mtx_unlock(&lun->lun_lock); 8858 /* Send msg to other side */ 8859 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8860 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8861 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8862 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8863 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8864 printf("CTL:Persis Out error returned from " 8865 "ctl_ha_msg_send %d\n", isc_retval); 8866 } 8867 break; 8868 8869 case SPRO_CLEAR: 8870 /* send msg to other side */ 8871 8872 mtx_lock(&lun->lun_lock); 8873 lun->flags &= ~CTL_LUN_PR_RESERVED; 8874 lun->res_type = 0; 8875 lun->pr_key_count = 0; 8876 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8877 8878 8879 memset(&lun->per_res[residx].res_key, 8880 0, sizeof(lun->per_res[residx].res_key)); 8881 lun->per_res[residx].registered = 0; 8882 8883 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8884 if (lun->per_res[i].registered) { 8885 if (!persis_offset && i < CTL_MAX_INITIATORS) 8886 lun->pending_ua[i] |= 8887 CTL_UA_RES_PREEMPT; 8888 else if (persis_offset && i >= persis_offset) 8889 lun->pending_ua[i-persis_offset] |= 8890 CTL_UA_RES_PREEMPT; 8891 8892 memset(&lun->per_res[i].res_key, 8893 0, sizeof(struct scsi_per_res_key)); 8894 lun->per_res[i].registered = 0; 8895 } 8896 lun->PRGeneration++; 8897 mtx_unlock(&lun->lun_lock); 8898 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8899 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8900 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8901 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8902 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8903 printf("CTL:Persis Out error returned from " 8904 "ctl_ha_msg_send %d\n", isc_retval); 8905 } 8906 break; 8907 8908 case SPRO_PREEMPT: { 8909 int nretval; 8910 8911 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8912 residx, ctsio, cdb, param); 8913 if (nretval != 0) 8914 return (CTL_RETVAL_COMPLETE); 8915 break; 8916 } 8917 default: 8918 panic("Invalid PR type %x", cdb->action); 8919 } 8920 8921done: 8922 free(ctsio->kern_data_ptr, M_CTL); 8923 ctl_set_success(ctsio); 8924 ctl_done((union ctl_io *)ctsio); 8925 8926 return (retval); 8927} 8928 8929/* 8930 * This routine is for handling a message from the other SC pertaining to 8931 * persistent reserve out. All the error checking will have been done 8932 * so only perorming the action need be done here to keep the two 8933 * in sync. 8934 */ 8935static void 8936ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8937{ 8938 struct ctl_lun *lun; 8939 struct ctl_softc *softc; 8940 int i; 8941 uint32_t targ_lun; 8942 8943 softc = control_softc; 8944 8945 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8946 lun = softc->ctl_luns[targ_lun]; 8947 mtx_lock(&lun->lun_lock); 8948 switch(msg->pr.pr_info.action) { 8949 case CTL_PR_REG_KEY: 8950 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8951 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8952 lun->pr_key_count++; 8953 } 8954 lun->PRGeneration++; 8955 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8956 msg->pr.pr_info.sa_res_key, 8957 sizeof(struct scsi_per_res_key)); 8958 break; 8959 8960 case CTL_PR_UNREG_KEY: 8961 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8962 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8963 0, sizeof(struct scsi_per_res_key)); 8964 lun->pr_key_count--; 8965 8966 /* XXX Need to see if the reservation has been released */ 8967 /* if so do we need to generate UA? */ 8968 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8969 lun->flags &= ~CTL_LUN_PR_RESERVED; 8970 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8971 8972 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8973 || lun->res_type == SPR_TYPE_EX_AC_RO) 8974 && lun->pr_key_count) { 8975 /* 8976 * If the reservation is a registrants 8977 * only type we need to generate a UA 8978 * for other registered inits. The 8979 * sense code should be RESERVATIONS 8980 * RELEASED 8981 */ 8982 8983 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8984 if (lun->per_res[i+ 8985 persis_offset].registered == 0) 8986 continue; 8987 8988 lun->pending_ua[i] |= 8989 CTL_UA_RES_RELEASE; 8990 } 8991 } 8992 lun->res_type = 0; 8993 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8994 if (lun->pr_key_count==0) { 8995 lun->flags &= ~CTL_LUN_PR_RESERVED; 8996 lun->res_type = 0; 8997 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8998 } 8999 } 9000 lun->PRGeneration++; 9001 break; 9002 9003 case CTL_PR_RESERVE: 9004 lun->flags |= CTL_LUN_PR_RESERVED; 9005 lun->res_type = msg->pr.pr_info.res_type; 9006 lun->pr_res_idx = msg->pr.pr_info.residx; 9007 9008 break; 9009 9010 case CTL_PR_RELEASE: 9011 /* 9012 * if this isn't an exclusive access res generate UA for all 9013 * other registrants. 9014 */ 9015 if (lun->res_type != SPR_TYPE_EX_AC 9016 && lun->res_type != SPR_TYPE_WR_EX) { 9017 for (i = 0; i < CTL_MAX_INITIATORS; i++) 9018 if (lun->per_res[i+persis_offset].registered) 9019 lun->pending_ua[i] |= 9020 CTL_UA_RES_RELEASE; 9021 } 9022 9023 lun->flags &= ~CTL_LUN_PR_RESERVED; 9024 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9025 lun->res_type = 0; 9026 break; 9027 9028 case CTL_PR_PREEMPT: 9029 ctl_pro_preempt_other(lun, msg); 9030 break; 9031 case CTL_PR_CLEAR: 9032 lun->flags &= ~CTL_LUN_PR_RESERVED; 9033 lun->res_type = 0; 9034 lun->pr_key_count = 0; 9035 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9036 9037 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9038 if (lun->per_res[i].registered == 0) 9039 continue; 9040 if (!persis_offset 9041 && i < CTL_MAX_INITIATORS) 9042 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 9043 else if (persis_offset 9044 && i >= persis_offset) 9045 lun->pending_ua[i-persis_offset] |= 9046 CTL_UA_RES_PREEMPT; 9047 memset(&lun->per_res[i].res_key, 0, 9048 sizeof(struct scsi_per_res_key)); 9049 lun->per_res[i].registered = 0; 9050 } 9051 lun->PRGeneration++; 9052 break; 9053 } 9054 9055 mtx_unlock(&lun->lun_lock); 9056} 9057 9058int 9059ctl_read_write(struct ctl_scsiio *ctsio) 9060{ 9061 struct ctl_lun *lun; 9062 struct ctl_lba_len_flags *lbalen; 9063 uint64_t lba; 9064 uint32_t num_blocks; 9065 int flags, retval; 9066 int isread; 9067 9068 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9069 9070 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9071 9072 flags = 0; 9073 retval = CTL_RETVAL_COMPLETE; 9074 9075 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9076 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9077 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9078 uint32_t residx; 9079 9080 /* 9081 * XXX KDM need a lock here. 9082 */ 9083 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9084 if ((lun->res_type == SPR_TYPE_EX_AC 9085 && residx != lun->pr_res_idx) 9086 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9087 || lun->res_type == SPR_TYPE_EX_AC_AR) 9088 && !lun->per_res[residx].registered)) { 9089 ctl_set_reservation_conflict(ctsio); 9090 ctl_done((union ctl_io *)ctsio); 9091 return (CTL_RETVAL_COMPLETE); 9092 } 9093 } 9094 9095 switch (ctsio->cdb[0]) { 9096 case READ_6: 9097 case WRITE_6: { 9098 struct scsi_rw_6 *cdb; 9099 9100 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9101 9102 lba = scsi_3btoul(cdb->addr); 9103 /* only 5 bits are valid in the most significant address byte */ 9104 lba &= 0x1fffff; 9105 num_blocks = cdb->length; 9106 /* 9107 * This is correct according to SBC-2. 9108 */ 9109 if (num_blocks == 0) 9110 num_blocks = 256; 9111 break; 9112 } 9113 case READ_10: 9114 case WRITE_10: { 9115 struct scsi_rw_10 *cdb; 9116 9117 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9118 if (cdb->byte2 & SRW10_FUA) 9119 flags |= CTL_LLF_FUA; 9120 if (cdb->byte2 & SRW10_DPO) 9121 flags |= CTL_LLF_DPO; 9122 lba = scsi_4btoul(cdb->addr); 9123 num_blocks = scsi_2btoul(cdb->length); 9124 break; 9125 } 9126 case WRITE_VERIFY_10: { 9127 struct scsi_write_verify_10 *cdb; 9128 9129 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9130 flags |= CTL_LLF_FUA; 9131 if (cdb->byte2 & SWV_DPO) 9132 flags |= CTL_LLF_DPO; 9133 lba = scsi_4btoul(cdb->addr); 9134 num_blocks = scsi_2btoul(cdb->length); 9135 break; 9136 } 9137 case READ_12: 9138 case WRITE_12: { 9139 struct scsi_rw_12 *cdb; 9140 9141 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9142 if (cdb->byte2 & SRW12_FUA) 9143 flags |= CTL_LLF_FUA; 9144 if (cdb->byte2 & SRW12_DPO) 9145 flags |= CTL_LLF_DPO; 9146 lba = scsi_4btoul(cdb->addr); 9147 num_blocks = scsi_4btoul(cdb->length); 9148 break; 9149 } 9150 case WRITE_VERIFY_12: { 9151 struct scsi_write_verify_12 *cdb; 9152 9153 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9154 flags |= CTL_LLF_FUA; 9155 if (cdb->byte2 & SWV_DPO) 9156 flags |= CTL_LLF_DPO; 9157 lba = scsi_4btoul(cdb->addr); 9158 num_blocks = scsi_4btoul(cdb->length); 9159 break; 9160 } 9161 case READ_16: 9162 case WRITE_16: { 9163 struct scsi_rw_16 *cdb; 9164 9165 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9166 if (cdb->byte2 & SRW12_FUA) 9167 flags |= CTL_LLF_FUA; 9168 if (cdb->byte2 & SRW12_DPO) 9169 flags |= CTL_LLF_DPO; 9170 lba = scsi_8btou64(cdb->addr); 9171 num_blocks = scsi_4btoul(cdb->length); 9172 break; 9173 } 9174 case WRITE_VERIFY_16: { 9175 struct scsi_write_verify_16 *cdb; 9176 9177 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9178 flags |= CTL_LLF_FUA; 9179 if (cdb->byte2 & SWV_DPO) 9180 flags |= CTL_LLF_DPO; 9181 lba = scsi_8btou64(cdb->addr); 9182 num_blocks = scsi_4btoul(cdb->length); 9183 break; 9184 } 9185 default: 9186 /* 9187 * We got a command we don't support. This shouldn't 9188 * happen, commands should be filtered out above us. 9189 */ 9190 ctl_set_invalid_opcode(ctsio); 9191 ctl_done((union ctl_io *)ctsio); 9192 9193 return (CTL_RETVAL_COMPLETE); 9194 break; /* NOTREACHED */ 9195 } 9196 9197 /* 9198 * The first check is to make sure we're in bounds, the second 9199 * check is to catch wrap-around problems. If the lba + num blocks 9200 * is less than the lba, then we've wrapped around and the block 9201 * range is invalid anyway. 9202 */ 9203 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9204 || ((lba + num_blocks) < lba)) { 9205 ctl_set_lba_out_of_range(ctsio); 9206 ctl_done((union ctl_io *)ctsio); 9207 return (CTL_RETVAL_COMPLETE); 9208 } 9209 9210 /* 9211 * According to SBC-3, a transfer length of 0 is not an error. 9212 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9213 * translates to 256 blocks for those commands. 9214 */ 9215 if (num_blocks == 0) { 9216 ctl_set_success(ctsio); 9217 ctl_done((union ctl_io *)ctsio); 9218 return (CTL_RETVAL_COMPLETE); 9219 } 9220 9221 /* Set FUA and/or DPO if caches are disabled. */ 9222 if (isread) { 9223 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9224 SCP_RCD) != 0) 9225 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9226 } else { 9227 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9228 SCP_WCE) == 0) 9229 flags |= CTL_LLF_FUA; 9230 } 9231 9232 lbalen = (struct ctl_lba_len_flags *) 9233 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9234 lbalen->lba = lba; 9235 lbalen->len = num_blocks; 9236 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9237 9238 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9239 ctsio->kern_rel_offset = 0; 9240 9241 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9242 9243 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9244 9245 return (retval); 9246} 9247 9248static int 9249ctl_cnw_cont(union ctl_io *io) 9250{ 9251 struct ctl_scsiio *ctsio; 9252 struct ctl_lun *lun; 9253 struct ctl_lba_len_flags *lbalen; 9254 int retval; 9255 9256 ctsio = &io->scsiio; 9257 ctsio->io_hdr.status = CTL_STATUS_NONE; 9258 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9259 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9260 lbalen = (struct ctl_lba_len_flags *) 9261 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9262 lbalen->flags &= ~CTL_LLF_COMPARE; 9263 lbalen->flags |= CTL_LLF_WRITE; 9264 9265 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9266 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9267 return (retval); 9268} 9269 9270int 9271ctl_cnw(struct ctl_scsiio *ctsio) 9272{ 9273 struct ctl_lun *lun; 9274 struct ctl_lba_len_flags *lbalen; 9275 uint64_t lba; 9276 uint32_t num_blocks; 9277 int flags, retval; 9278 9279 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9280 9281 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9282 9283 flags = 0; 9284 retval = CTL_RETVAL_COMPLETE; 9285 9286 switch (ctsio->cdb[0]) { 9287 case COMPARE_AND_WRITE: { 9288 struct scsi_compare_and_write *cdb; 9289 9290 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9291 if (cdb->byte2 & SRW10_FUA) 9292 flags |= CTL_LLF_FUA; 9293 if (cdb->byte2 & SRW10_DPO) 9294 flags |= CTL_LLF_DPO; 9295 lba = scsi_8btou64(cdb->addr); 9296 num_blocks = cdb->length; 9297 break; 9298 } 9299 default: 9300 /* 9301 * We got a command we don't support. This shouldn't 9302 * happen, commands should be filtered out above us. 9303 */ 9304 ctl_set_invalid_opcode(ctsio); 9305 ctl_done((union ctl_io *)ctsio); 9306 9307 return (CTL_RETVAL_COMPLETE); 9308 break; /* NOTREACHED */ 9309 } 9310 9311 /* 9312 * The first check is to make sure we're in bounds, the second 9313 * check is to catch wrap-around problems. If the lba + num blocks 9314 * is less than the lba, then we've wrapped around and the block 9315 * range is invalid anyway. 9316 */ 9317 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9318 || ((lba + num_blocks) < lba)) { 9319 ctl_set_lba_out_of_range(ctsio); 9320 ctl_done((union ctl_io *)ctsio); 9321 return (CTL_RETVAL_COMPLETE); 9322 } 9323 9324 /* 9325 * According to SBC-3, a transfer length of 0 is not an error. 9326 */ 9327 if (num_blocks == 0) { 9328 ctl_set_success(ctsio); 9329 ctl_done((union ctl_io *)ctsio); 9330 return (CTL_RETVAL_COMPLETE); 9331 } 9332 9333 /* Set FUA if write cache is disabled. */ 9334 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9335 SCP_WCE) == 0) 9336 flags |= CTL_LLF_FUA; 9337 9338 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9339 ctsio->kern_rel_offset = 0; 9340 9341 /* 9342 * Set the IO_CONT flag, so that if this I/O gets passed to 9343 * ctl_data_submit_done(), it'll get passed back to 9344 * ctl_ctl_cnw_cont() for further processing. 9345 */ 9346 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9347 ctsio->io_cont = ctl_cnw_cont; 9348 9349 lbalen = (struct ctl_lba_len_flags *) 9350 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9351 lbalen->lba = lba; 9352 lbalen->len = num_blocks; 9353 lbalen->flags = CTL_LLF_COMPARE | flags; 9354 9355 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9356 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9357 return (retval); 9358} 9359 9360int 9361ctl_verify(struct ctl_scsiio *ctsio) 9362{ 9363 struct ctl_lun *lun; 9364 struct ctl_lba_len_flags *lbalen; 9365 uint64_t lba; 9366 uint32_t num_blocks; 9367 int bytchk, flags; 9368 int retval; 9369 9370 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9371 9372 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9373 9374 bytchk = 0; 9375 flags = CTL_LLF_FUA; 9376 retval = CTL_RETVAL_COMPLETE; 9377 9378 switch (ctsio->cdb[0]) { 9379 case VERIFY_10: { 9380 struct scsi_verify_10 *cdb; 9381 9382 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9383 if (cdb->byte2 & SVFY_BYTCHK) 9384 bytchk = 1; 9385 if (cdb->byte2 & SVFY_DPO) 9386 flags |= CTL_LLF_DPO; 9387 lba = scsi_4btoul(cdb->addr); 9388 num_blocks = scsi_2btoul(cdb->length); 9389 break; 9390 } 9391 case VERIFY_12: { 9392 struct scsi_verify_12 *cdb; 9393 9394 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9395 if (cdb->byte2 & SVFY_BYTCHK) 9396 bytchk = 1; 9397 if (cdb->byte2 & SVFY_DPO) 9398 flags |= CTL_LLF_DPO; 9399 lba = scsi_4btoul(cdb->addr); 9400 num_blocks = scsi_4btoul(cdb->length); 9401 break; 9402 } 9403 case VERIFY_16: { 9404 struct scsi_rw_16 *cdb; 9405 9406 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9407 if (cdb->byte2 & SVFY_BYTCHK) 9408 bytchk = 1; 9409 if (cdb->byte2 & SVFY_DPO) 9410 flags |= CTL_LLF_DPO; 9411 lba = scsi_8btou64(cdb->addr); 9412 num_blocks = scsi_4btoul(cdb->length); 9413 break; 9414 } 9415 default: 9416 /* 9417 * We got a command we don't support. This shouldn't 9418 * happen, commands should be filtered out above us. 9419 */ 9420 ctl_set_invalid_opcode(ctsio); 9421 ctl_done((union ctl_io *)ctsio); 9422 return (CTL_RETVAL_COMPLETE); 9423 } 9424 9425 /* 9426 * The first check is to make sure we're in bounds, the second 9427 * check is to catch wrap-around problems. If the lba + num blocks 9428 * is less than the lba, then we've wrapped around and the block 9429 * range is invalid anyway. 9430 */ 9431 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9432 || ((lba + num_blocks) < lba)) { 9433 ctl_set_lba_out_of_range(ctsio); 9434 ctl_done((union ctl_io *)ctsio); 9435 return (CTL_RETVAL_COMPLETE); 9436 } 9437 9438 /* 9439 * According to SBC-3, a transfer length of 0 is not an error. 9440 */ 9441 if (num_blocks == 0) { 9442 ctl_set_success(ctsio); 9443 ctl_done((union ctl_io *)ctsio); 9444 return (CTL_RETVAL_COMPLETE); 9445 } 9446 9447 lbalen = (struct ctl_lba_len_flags *) 9448 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9449 lbalen->lba = lba; 9450 lbalen->len = num_blocks; 9451 if (bytchk) { 9452 lbalen->flags = CTL_LLF_COMPARE | flags; 9453 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9454 } else { 9455 lbalen->flags = CTL_LLF_VERIFY | flags; 9456 ctsio->kern_total_len = 0; 9457 } 9458 ctsio->kern_rel_offset = 0; 9459 9460 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9461 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9462 return (retval); 9463} 9464 9465int 9466ctl_report_luns(struct ctl_scsiio *ctsio) 9467{ 9468 struct scsi_report_luns *cdb; 9469 struct scsi_report_luns_data *lun_data; 9470 struct ctl_lun *lun, *request_lun; 9471 int num_luns, retval; 9472 uint32_t alloc_len, lun_datalen; 9473 int num_filled, well_known; 9474 uint32_t initidx, targ_lun_id, lun_id; 9475 9476 retval = CTL_RETVAL_COMPLETE; 9477 well_known = 0; 9478 9479 cdb = (struct scsi_report_luns *)ctsio->cdb; 9480 9481 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9482 9483 mtx_lock(&control_softc->ctl_lock); 9484 num_luns = control_softc->num_luns; 9485 mtx_unlock(&control_softc->ctl_lock); 9486 9487 switch (cdb->select_report) { 9488 case RPL_REPORT_DEFAULT: 9489 case RPL_REPORT_ALL: 9490 break; 9491 case RPL_REPORT_WELLKNOWN: 9492 well_known = 1; 9493 num_luns = 0; 9494 break; 9495 default: 9496 ctl_set_invalid_field(ctsio, 9497 /*sks_valid*/ 1, 9498 /*command*/ 1, 9499 /*field*/ 2, 9500 /*bit_valid*/ 0, 9501 /*bit*/ 0); 9502 ctl_done((union ctl_io *)ctsio); 9503 return (retval); 9504 break; /* NOTREACHED */ 9505 } 9506 9507 alloc_len = scsi_4btoul(cdb->length); 9508 /* 9509 * The initiator has to allocate at least 16 bytes for this request, 9510 * so he can at least get the header and the first LUN. Otherwise 9511 * we reject the request (per SPC-3 rev 14, section 6.21). 9512 */ 9513 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9514 sizeof(struct scsi_report_luns_lundata))) { 9515 ctl_set_invalid_field(ctsio, 9516 /*sks_valid*/ 1, 9517 /*command*/ 1, 9518 /*field*/ 6, 9519 /*bit_valid*/ 0, 9520 /*bit*/ 0); 9521 ctl_done((union ctl_io *)ctsio); 9522 return (retval); 9523 } 9524 9525 request_lun = (struct ctl_lun *) 9526 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9527 9528 lun_datalen = sizeof(*lun_data) + 9529 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9530 9531 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9532 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9533 ctsio->kern_sg_entries = 0; 9534 9535 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9536 9537 mtx_lock(&control_softc->ctl_lock); 9538 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9539 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9540 if (lun_id >= CTL_MAX_LUNS) 9541 continue; 9542 lun = control_softc->ctl_luns[lun_id]; 9543 if (lun == NULL) 9544 continue; 9545 9546 if (targ_lun_id <= 0xff) { 9547 /* 9548 * Peripheral addressing method, bus number 0. 9549 */ 9550 lun_data->luns[num_filled].lundata[0] = 9551 RPL_LUNDATA_ATYP_PERIPH; 9552 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9553 num_filled++; 9554 } else if (targ_lun_id <= 0x3fff) { 9555 /* 9556 * Flat addressing method. 9557 */ 9558 lun_data->luns[num_filled].lundata[0] = 9559 RPL_LUNDATA_ATYP_FLAT | 9560 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9561#ifdef OLDCTLHEADERS 9562 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9563 (targ_lun_id & SRLD_BUS_LUN_MASK); 9564#endif 9565 lun_data->luns[num_filled].lundata[1] = 9566#ifdef OLDCTLHEADERS 9567 targ_lun_id >> SRLD_BUS_LUN_BITS; 9568#endif 9569 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9570 num_filled++; 9571 } else { 9572 printf("ctl_report_luns: bogus LUN number %jd, " 9573 "skipping\n", (intmax_t)targ_lun_id); 9574 } 9575 /* 9576 * According to SPC-3, rev 14 section 6.21: 9577 * 9578 * "The execution of a REPORT LUNS command to any valid and 9579 * installed logical unit shall clear the REPORTED LUNS DATA 9580 * HAS CHANGED unit attention condition for all logical 9581 * units of that target with respect to the requesting 9582 * initiator. A valid and installed logical unit is one 9583 * having a PERIPHERAL QUALIFIER of 000b in the standard 9584 * INQUIRY data (see 6.4.2)." 9585 * 9586 * If request_lun is NULL, the LUN this report luns command 9587 * was issued to is either disabled or doesn't exist. In that 9588 * case, we shouldn't clear any pending lun change unit 9589 * attention. 9590 */ 9591 if (request_lun != NULL) { 9592 mtx_lock(&lun->lun_lock); 9593 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9594 mtx_unlock(&lun->lun_lock); 9595 } 9596 } 9597 mtx_unlock(&control_softc->ctl_lock); 9598 9599 /* 9600 * It's quite possible that we've returned fewer LUNs than we allocated 9601 * space for. Trim it. 9602 */ 9603 lun_datalen = sizeof(*lun_data) + 9604 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9605 9606 if (lun_datalen < alloc_len) { 9607 ctsio->residual = alloc_len - lun_datalen; 9608 ctsio->kern_data_len = lun_datalen; 9609 ctsio->kern_total_len = lun_datalen; 9610 } else { 9611 ctsio->residual = 0; 9612 ctsio->kern_data_len = alloc_len; 9613 ctsio->kern_total_len = alloc_len; 9614 } 9615 ctsio->kern_data_resid = 0; 9616 ctsio->kern_rel_offset = 0; 9617 ctsio->kern_sg_entries = 0; 9618 9619 /* 9620 * We set this to the actual data length, regardless of how much 9621 * space we actually have to return results. If the user looks at 9622 * this value, he'll know whether or not he allocated enough space 9623 * and reissue the command if necessary. We don't support well 9624 * known logical units, so if the user asks for that, return none. 9625 */ 9626 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9627 9628 /* 9629 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9630 * this request. 9631 */ 9632 ctsio->scsi_status = SCSI_STATUS_OK; 9633 9634 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9635 ctsio->be_move_done = ctl_config_move_done; 9636 ctl_datamove((union ctl_io *)ctsio); 9637 9638 return (retval); 9639} 9640 9641int 9642ctl_request_sense(struct ctl_scsiio *ctsio) 9643{ 9644 struct scsi_request_sense *cdb; 9645 struct scsi_sense_data *sense_ptr; 9646 struct ctl_lun *lun; 9647 uint32_t initidx; 9648 int have_error; 9649 scsi_sense_data_type sense_format; 9650 9651 cdb = (struct scsi_request_sense *)ctsio->cdb; 9652 9653 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9654 9655 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9656 9657 /* 9658 * Determine which sense format the user wants. 9659 */ 9660 if (cdb->byte2 & SRS_DESC) 9661 sense_format = SSD_TYPE_DESC; 9662 else 9663 sense_format = SSD_TYPE_FIXED; 9664 9665 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9666 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9667 ctsio->kern_sg_entries = 0; 9668 9669 /* 9670 * struct scsi_sense_data, which is currently set to 256 bytes, is 9671 * larger than the largest allowed value for the length field in the 9672 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9673 */ 9674 ctsio->residual = 0; 9675 ctsio->kern_data_len = cdb->length; 9676 ctsio->kern_total_len = cdb->length; 9677 9678 ctsio->kern_data_resid = 0; 9679 ctsio->kern_rel_offset = 0; 9680 ctsio->kern_sg_entries = 0; 9681 9682 /* 9683 * If we don't have a LUN, we don't have any pending sense. 9684 */ 9685 if (lun == NULL) 9686 goto no_sense; 9687 9688 have_error = 0; 9689 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9690 /* 9691 * Check for pending sense, and then for pending unit attentions. 9692 * Pending sense gets returned first, then pending unit attentions. 9693 */ 9694 mtx_lock(&lun->lun_lock); 9695#ifdef CTL_WITH_CA 9696 if (ctl_is_set(lun->have_ca, initidx)) { 9697 scsi_sense_data_type stored_format; 9698 9699 /* 9700 * Check to see which sense format was used for the stored 9701 * sense data. 9702 */ 9703 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9704 9705 /* 9706 * If the user requested a different sense format than the 9707 * one we stored, then we need to convert it to the other 9708 * format. If we're going from descriptor to fixed format 9709 * sense data, we may lose things in translation, depending 9710 * on what options were used. 9711 * 9712 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9713 * for some reason we'll just copy it out as-is. 9714 */ 9715 if ((stored_format == SSD_TYPE_FIXED) 9716 && (sense_format == SSD_TYPE_DESC)) 9717 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9718 &lun->pending_sense[initidx], 9719 (struct scsi_sense_data_desc *)sense_ptr); 9720 else if ((stored_format == SSD_TYPE_DESC) 9721 && (sense_format == SSD_TYPE_FIXED)) 9722 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9723 &lun->pending_sense[initidx], 9724 (struct scsi_sense_data_fixed *)sense_ptr); 9725 else 9726 memcpy(sense_ptr, &lun->pending_sense[initidx], 9727 ctl_min(sizeof(*sense_ptr), 9728 sizeof(lun->pending_sense[initidx]))); 9729 9730 ctl_clear_mask(lun->have_ca, initidx); 9731 have_error = 1; 9732 } else 9733#endif 9734 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9735 ctl_ua_type ua_type; 9736 9737 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9738 sense_ptr, sense_format); 9739 if (ua_type != CTL_UA_NONE) 9740 have_error = 1; 9741 } 9742 mtx_unlock(&lun->lun_lock); 9743 9744 /* 9745 * We already have a pending error, return it. 9746 */ 9747 if (have_error != 0) { 9748 /* 9749 * We report the SCSI status as OK, since the status of the 9750 * request sense command itself is OK. 9751 */ 9752 ctsio->scsi_status = SCSI_STATUS_OK; 9753 9754 /* 9755 * We report 0 for the sense length, because we aren't doing 9756 * autosense in this case. We're reporting sense as 9757 * parameter data. 9758 */ 9759 ctsio->sense_len = 0; 9760 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9761 ctsio->be_move_done = ctl_config_move_done; 9762 ctl_datamove((union ctl_io *)ctsio); 9763 9764 return (CTL_RETVAL_COMPLETE); 9765 } 9766 9767no_sense: 9768 9769 /* 9770 * No sense information to report, so we report that everything is 9771 * okay. 9772 */ 9773 ctl_set_sense_data(sense_ptr, 9774 lun, 9775 sense_format, 9776 /*current_error*/ 1, 9777 /*sense_key*/ SSD_KEY_NO_SENSE, 9778 /*asc*/ 0x00, 9779 /*ascq*/ 0x00, 9780 SSD_ELEM_NONE); 9781 9782 ctsio->scsi_status = SCSI_STATUS_OK; 9783 9784 /* 9785 * We report 0 for the sense length, because we aren't doing 9786 * autosense in this case. We're reporting sense as parameter data. 9787 */ 9788 ctsio->sense_len = 0; 9789 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9790 ctsio->be_move_done = ctl_config_move_done; 9791 ctl_datamove((union ctl_io *)ctsio); 9792 9793 return (CTL_RETVAL_COMPLETE); 9794} 9795 9796int 9797ctl_tur(struct ctl_scsiio *ctsio) 9798{ 9799 struct ctl_lun *lun; 9800 9801 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9802 9803 CTL_DEBUG_PRINT(("ctl_tur\n")); 9804 9805 if (lun == NULL) 9806 return (EINVAL); 9807 9808 ctsio->scsi_status = SCSI_STATUS_OK; 9809 ctsio->io_hdr.status = CTL_SUCCESS; 9810 9811 ctl_done((union ctl_io *)ctsio); 9812 9813 return (CTL_RETVAL_COMPLETE); 9814} 9815 9816#ifdef notyet 9817static int 9818ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9819{ 9820 9821} 9822#endif 9823 9824static int 9825ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9826{ 9827 struct scsi_vpd_supported_pages *pages; 9828 int sup_page_size; 9829 struct ctl_lun *lun; 9830 9831 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9832 9833 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9834 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9835 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9836 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9837 ctsio->kern_sg_entries = 0; 9838 9839 if (sup_page_size < alloc_len) { 9840 ctsio->residual = alloc_len - sup_page_size; 9841 ctsio->kern_data_len = sup_page_size; 9842 ctsio->kern_total_len = sup_page_size; 9843 } else { 9844 ctsio->residual = 0; 9845 ctsio->kern_data_len = alloc_len; 9846 ctsio->kern_total_len = alloc_len; 9847 } 9848 ctsio->kern_data_resid = 0; 9849 ctsio->kern_rel_offset = 0; 9850 ctsio->kern_sg_entries = 0; 9851 9852 /* 9853 * The control device is always connected. The disk device, on the 9854 * other hand, may not be online all the time. Need to change this 9855 * to figure out whether the disk device is actually online or not. 9856 */ 9857 if (lun != NULL) 9858 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9859 lun->be_lun->lun_type; 9860 else 9861 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9862 9863 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9864 /* Supported VPD pages */ 9865 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9866 /* Serial Number */ 9867 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9868 /* Device Identification */ 9869 pages->page_list[2] = SVPD_DEVICE_ID; 9870 /* Extended INQUIRY Data */ 9871 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9872 /* Mode Page Policy */ 9873 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9874 /* SCSI Ports */ 9875 pages->page_list[5] = SVPD_SCSI_PORTS; 9876 /* Third-party Copy */ 9877 pages->page_list[6] = SVPD_SCSI_TPC; 9878 /* Block limits */ 9879 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9880 /* Block Device Characteristics */ 9881 pages->page_list[8] = SVPD_BDC; 9882 /* Logical Block Provisioning */ 9883 pages->page_list[9] = SVPD_LBP; 9884 9885 ctsio->scsi_status = SCSI_STATUS_OK; 9886 9887 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9888 ctsio->be_move_done = ctl_config_move_done; 9889 ctl_datamove((union ctl_io *)ctsio); 9890 9891 return (CTL_RETVAL_COMPLETE); 9892} 9893 9894static int 9895ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9896{ 9897 struct scsi_vpd_unit_serial_number *sn_ptr; 9898 struct ctl_lun *lun; 9899 9900 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9901 9902 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9903 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9904 ctsio->kern_sg_entries = 0; 9905 9906 if (sizeof(*sn_ptr) < alloc_len) { 9907 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9908 ctsio->kern_data_len = sizeof(*sn_ptr); 9909 ctsio->kern_total_len = sizeof(*sn_ptr); 9910 } else { 9911 ctsio->residual = 0; 9912 ctsio->kern_data_len = alloc_len; 9913 ctsio->kern_total_len = alloc_len; 9914 } 9915 ctsio->kern_data_resid = 0; 9916 ctsio->kern_rel_offset = 0; 9917 ctsio->kern_sg_entries = 0; 9918 9919 /* 9920 * The control device is always connected. The disk device, on the 9921 * other hand, may not be online all the time. Need to change this 9922 * to figure out whether the disk device is actually online or not. 9923 */ 9924 if (lun != NULL) 9925 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9926 lun->be_lun->lun_type; 9927 else 9928 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9929 9930 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9931 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9932 /* 9933 * If we don't have a LUN, we just leave the serial number as 9934 * all spaces. 9935 */ 9936 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9937 if (lun != NULL) { 9938 strncpy((char *)sn_ptr->serial_num, 9939 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9940 } 9941 ctsio->scsi_status = SCSI_STATUS_OK; 9942 9943 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9944 ctsio->be_move_done = ctl_config_move_done; 9945 ctl_datamove((union ctl_io *)ctsio); 9946 9947 return (CTL_RETVAL_COMPLETE); 9948} 9949 9950 9951static int 9952ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9953{ 9954 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9955 struct ctl_lun *lun; 9956 int data_len; 9957 9958 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9959 9960 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9961 sizeof(struct scsi_vpd_mode_page_policy_descr); 9962 9963 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9964 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9965 ctsio->kern_sg_entries = 0; 9966 9967 if (data_len < alloc_len) { 9968 ctsio->residual = alloc_len - data_len; 9969 ctsio->kern_data_len = data_len; 9970 ctsio->kern_total_len = data_len; 9971 } else { 9972 ctsio->residual = 0; 9973 ctsio->kern_data_len = alloc_len; 9974 ctsio->kern_total_len = alloc_len; 9975 } 9976 ctsio->kern_data_resid = 0; 9977 ctsio->kern_rel_offset = 0; 9978 ctsio->kern_sg_entries = 0; 9979 9980 /* 9981 * The control device is always connected. The disk device, on the 9982 * other hand, may not be online all the time. 9983 */ 9984 if (lun != NULL) 9985 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9986 lun->be_lun->lun_type; 9987 else 9988 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9989 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9990 eid_ptr->page_length = data_len - 4; 9991 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9992 eid_ptr->flags3 = SVPD_EID_V_SUP; 9993 9994 ctsio->scsi_status = SCSI_STATUS_OK; 9995 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9996 ctsio->be_move_done = ctl_config_move_done; 9997 ctl_datamove((union ctl_io *)ctsio); 9998 9999 return (CTL_RETVAL_COMPLETE); 10000} 10001 10002static int 10003ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 10004{ 10005 struct scsi_vpd_mode_page_policy *mpp_ptr; 10006 struct ctl_lun *lun; 10007 int data_len; 10008 10009 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10010 10011 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 10012 sizeof(struct scsi_vpd_mode_page_policy_descr); 10013 10014 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10015 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 10016 ctsio->kern_sg_entries = 0; 10017 10018 if (data_len < alloc_len) { 10019 ctsio->residual = alloc_len - data_len; 10020 ctsio->kern_data_len = data_len; 10021 ctsio->kern_total_len = data_len; 10022 } else { 10023 ctsio->residual = 0; 10024 ctsio->kern_data_len = alloc_len; 10025 ctsio->kern_total_len = alloc_len; 10026 } 10027 ctsio->kern_data_resid = 0; 10028 ctsio->kern_rel_offset = 0; 10029 ctsio->kern_sg_entries = 0; 10030 10031 /* 10032 * The control device is always connected. The disk device, on the 10033 * other hand, may not be online all the time. 10034 */ 10035 if (lun != NULL) 10036 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10037 lun->be_lun->lun_type; 10038 else 10039 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10040 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 10041 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 10042 mpp_ptr->descr[0].page_code = 0x3f; 10043 mpp_ptr->descr[0].subpage_code = 0xff; 10044 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10045 10046 ctsio->scsi_status = SCSI_STATUS_OK; 10047 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10048 ctsio->be_move_done = ctl_config_move_done; 10049 ctl_datamove((union ctl_io *)ctsio); 10050 10051 return (CTL_RETVAL_COMPLETE); 10052} 10053 10054static int 10055ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10056{ 10057 struct scsi_vpd_device_id *devid_ptr; 10058 struct scsi_vpd_id_descriptor *desc; 10059 struct ctl_softc *ctl_softc; 10060 struct ctl_lun *lun; 10061 struct ctl_port *port; 10062 int data_len; 10063 uint8_t proto; 10064 10065 ctl_softc = control_softc; 10066 10067 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10068 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10069 10070 data_len = sizeof(struct scsi_vpd_device_id) + 10071 sizeof(struct scsi_vpd_id_descriptor) + 10072 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10073 sizeof(struct scsi_vpd_id_descriptor) + 10074 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10075 if (lun && lun->lun_devid) 10076 data_len += lun->lun_devid->len; 10077 if (port->port_devid) 10078 data_len += port->port_devid->len; 10079 if (port->target_devid) 10080 data_len += port->target_devid->len; 10081 10082 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10083 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10084 ctsio->kern_sg_entries = 0; 10085 10086 if (data_len < alloc_len) { 10087 ctsio->residual = alloc_len - data_len; 10088 ctsio->kern_data_len = data_len; 10089 ctsio->kern_total_len = data_len; 10090 } else { 10091 ctsio->residual = 0; 10092 ctsio->kern_data_len = alloc_len; 10093 ctsio->kern_total_len = alloc_len; 10094 } 10095 ctsio->kern_data_resid = 0; 10096 ctsio->kern_rel_offset = 0; 10097 ctsio->kern_sg_entries = 0; 10098 10099 /* 10100 * The control device is always connected. The disk device, on the 10101 * other hand, may not be online all the time. 10102 */ 10103 if (lun != NULL) 10104 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10105 lun->be_lun->lun_type; 10106 else 10107 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10108 devid_ptr->page_code = SVPD_DEVICE_ID; 10109 scsi_ulto2b(data_len - 4, devid_ptr->length); 10110 10111 if (port->port_type == CTL_PORT_FC) 10112 proto = SCSI_PROTO_FC << 4; 10113 else if (port->port_type == CTL_PORT_ISCSI) 10114 proto = SCSI_PROTO_ISCSI << 4; 10115 else 10116 proto = SCSI_PROTO_SPI << 4; 10117 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10118 10119 /* 10120 * We're using a LUN association here. i.e., this device ID is a 10121 * per-LUN identifier. 10122 */ 10123 if (lun && lun->lun_devid) { 10124 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10125 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10126 lun->lun_devid->len); 10127 } 10128 10129 /* 10130 * This is for the WWPN which is a port association. 10131 */ 10132 if (port->port_devid) { 10133 memcpy(desc, port->port_devid->data, port->port_devid->len); 10134 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10135 port->port_devid->len); 10136 } 10137 10138 /* 10139 * This is for the Relative Target Port(type 4h) identifier 10140 */ 10141 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10142 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10143 SVPD_ID_TYPE_RELTARG; 10144 desc->length = 4; 10145 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10146 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10147 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10148 10149 /* 10150 * This is for the Target Port Group(type 5h) identifier 10151 */ 10152 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10153 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10154 SVPD_ID_TYPE_TPORTGRP; 10155 desc->length = 4; 10156 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10157 &desc->identifier[2]); 10158 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10159 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10160 10161 /* 10162 * This is for the Target identifier 10163 */ 10164 if (port->target_devid) { 10165 memcpy(desc, port->target_devid->data, port->target_devid->len); 10166 } 10167 10168 ctsio->scsi_status = SCSI_STATUS_OK; 10169 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10170 ctsio->be_move_done = ctl_config_move_done; 10171 ctl_datamove((union ctl_io *)ctsio); 10172 10173 return (CTL_RETVAL_COMPLETE); 10174} 10175 10176static int 10177ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10178{ 10179 struct ctl_softc *softc = control_softc; 10180 struct scsi_vpd_scsi_ports *sp; 10181 struct scsi_vpd_port_designation *pd; 10182 struct scsi_vpd_port_designation_cont *pdc; 10183 struct ctl_lun *lun; 10184 struct ctl_port *port; 10185 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10186 int num_target_port_groups, single; 10187 10188 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10189 10190 single = ctl_is_single; 10191 if (single) 10192 num_target_port_groups = 1; 10193 else 10194 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10195 num_target_ports = 0; 10196 iid_len = 0; 10197 id_len = 0; 10198 mtx_lock(&softc->ctl_lock); 10199 STAILQ_FOREACH(port, &softc->port_list, links) { 10200 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10201 continue; 10202 if (lun != NULL && 10203 ctl_map_lun_back(port->targ_port, lun->lun) >= 10204 CTL_MAX_LUNS) 10205 continue; 10206 num_target_ports++; 10207 if (port->init_devid) 10208 iid_len += port->init_devid->len; 10209 if (port->port_devid) 10210 id_len += port->port_devid->len; 10211 } 10212 mtx_unlock(&softc->ctl_lock); 10213 10214 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10215 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10216 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10217 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10218 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10219 ctsio->kern_sg_entries = 0; 10220 10221 if (data_len < alloc_len) { 10222 ctsio->residual = alloc_len - data_len; 10223 ctsio->kern_data_len = data_len; 10224 ctsio->kern_total_len = data_len; 10225 } else { 10226 ctsio->residual = 0; 10227 ctsio->kern_data_len = alloc_len; 10228 ctsio->kern_total_len = alloc_len; 10229 } 10230 ctsio->kern_data_resid = 0; 10231 ctsio->kern_rel_offset = 0; 10232 ctsio->kern_sg_entries = 0; 10233 10234 /* 10235 * The control device is always connected. The disk device, on the 10236 * other hand, may not be online all the time. Need to change this 10237 * to figure out whether the disk device is actually online or not. 10238 */ 10239 if (lun != NULL) 10240 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10241 lun->be_lun->lun_type; 10242 else 10243 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10244 10245 sp->page_code = SVPD_SCSI_PORTS; 10246 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10247 sp->page_length); 10248 pd = &sp->design[0]; 10249 10250 mtx_lock(&softc->ctl_lock); 10251 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10252 pg = 0; 10253 else 10254 pg = 1; 10255 for (g = 0; g < num_target_port_groups; g++) { 10256 STAILQ_FOREACH(port, &softc->port_list, links) { 10257 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10258 continue; 10259 if (lun != NULL && 10260 ctl_map_lun_back(port->targ_port, lun->lun) >= 10261 CTL_MAX_LUNS) 10262 continue; 10263 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10264 scsi_ulto2b(p, pd->relative_port_id); 10265 if (port->init_devid && g == pg) { 10266 iid_len = port->init_devid->len; 10267 memcpy(pd->initiator_transportid, 10268 port->init_devid->data, port->init_devid->len); 10269 } else 10270 iid_len = 0; 10271 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10272 pdc = (struct scsi_vpd_port_designation_cont *) 10273 (&pd->initiator_transportid[iid_len]); 10274 if (port->port_devid && g == pg) { 10275 id_len = port->port_devid->len; 10276 memcpy(pdc->target_port_descriptors, 10277 port->port_devid->data, port->port_devid->len); 10278 } else 10279 id_len = 0; 10280 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10281 pd = (struct scsi_vpd_port_designation *) 10282 ((uint8_t *)pdc->target_port_descriptors + id_len); 10283 } 10284 } 10285 mtx_unlock(&softc->ctl_lock); 10286 10287 ctsio->scsi_status = SCSI_STATUS_OK; 10288 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10289 ctsio->be_move_done = ctl_config_move_done; 10290 ctl_datamove((union ctl_io *)ctsio); 10291 10292 return (CTL_RETVAL_COMPLETE); 10293} 10294 10295static int 10296ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10297{ 10298 struct scsi_vpd_block_limits *bl_ptr; 10299 struct ctl_lun *lun; 10300 int bs; 10301 10302 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10303 10304 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10305 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10306 ctsio->kern_sg_entries = 0; 10307 10308 if (sizeof(*bl_ptr) < alloc_len) { 10309 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10310 ctsio->kern_data_len = sizeof(*bl_ptr); 10311 ctsio->kern_total_len = sizeof(*bl_ptr); 10312 } else { 10313 ctsio->residual = 0; 10314 ctsio->kern_data_len = alloc_len; 10315 ctsio->kern_total_len = alloc_len; 10316 } 10317 ctsio->kern_data_resid = 0; 10318 ctsio->kern_rel_offset = 0; 10319 ctsio->kern_sg_entries = 0; 10320 10321 /* 10322 * The control device is always connected. The disk device, on the 10323 * other hand, may not be online all the time. Need to change this 10324 * to figure out whether the disk device is actually online or not. 10325 */ 10326 if (lun != NULL) 10327 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10328 lun->be_lun->lun_type; 10329 else 10330 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10331 10332 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10333 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10334 bl_ptr->max_cmp_write_len = 0xff; 10335 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10336 if (lun != NULL) { 10337 bs = lun->be_lun->blocksize; 10338 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10339 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10340 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10341 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10342 if (lun->be_lun->pblockexp != 0) { 10343 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10344 bl_ptr->opt_unmap_grain); 10345 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10346 bl_ptr->unmap_grain_align); 10347 } 10348 } 10349 } 10350 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10351 10352 ctsio->scsi_status = SCSI_STATUS_OK; 10353 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10354 ctsio->be_move_done = ctl_config_move_done; 10355 ctl_datamove((union ctl_io *)ctsio); 10356 10357 return (CTL_RETVAL_COMPLETE); 10358} 10359 10360static int 10361ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10362{ 10363 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10364 struct ctl_lun *lun; 10365 10366 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10367 10368 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10369 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10370 ctsio->kern_sg_entries = 0; 10371 10372 if (sizeof(*bdc_ptr) < alloc_len) { 10373 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10374 ctsio->kern_data_len = sizeof(*bdc_ptr); 10375 ctsio->kern_total_len = sizeof(*bdc_ptr); 10376 } else { 10377 ctsio->residual = 0; 10378 ctsio->kern_data_len = alloc_len; 10379 ctsio->kern_total_len = alloc_len; 10380 } 10381 ctsio->kern_data_resid = 0; 10382 ctsio->kern_rel_offset = 0; 10383 ctsio->kern_sg_entries = 0; 10384 10385 /* 10386 * The control device is always connected. The disk device, on the 10387 * other hand, may not be online all the time. Need to change this 10388 * to figure out whether the disk device is actually online or not. 10389 */ 10390 if (lun != NULL) 10391 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10392 lun->be_lun->lun_type; 10393 else 10394 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10395 bdc_ptr->page_code = SVPD_BDC; 10396 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10397 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10398 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10399 10400 ctsio->scsi_status = SCSI_STATUS_OK; 10401 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10402 ctsio->be_move_done = ctl_config_move_done; 10403 ctl_datamove((union ctl_io *)ctsio); 10404 10405 return (CTL_RETVAL_COMPLETE); 10406} 10407 10408static int 10409ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10410{ 10411 struct scsi_vpd_logical_block_prov *lbp_ptr; 10412 struct ctl_lun *lun; 10413 10414 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10415 10416 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10417 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10418 ctsio->kern_sg_entries = 0; 10419 10420 if (sizeof(*lbp_ptr) < alloc_len) { 10421 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10422 ctsio->kern_data_len = sizeof(*lbp_ptr); 10423 ctsio->kern_total_len = sizeof(*lbp_ptr); 10424 } else { 10425 ctsio->residual = 0; 10426 ctsio->kern_data_len = alloc_len; 10427 ctsio->kern_total_len = alloc_len; 10428 } 10429 ctsio->kern_data_resid = 0; 10430 ctsio->kern_rel_offset = 0; 10431 ctsio->kern_sg_entries = 0; 10432 10433 /* 10434 * The control device is always connected. The disk device, on the 10435 * other hand, may not be online all the time. Need to change this 10436 * to figure out whether the disk device is actually online or not. 10437 */ 10438 if (lun != NULL) 10439 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10440 lun->be_lun->lun_type; 10441 else 10442 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10443 10444 lbp_ptr->page_code = SVPD_LBP; 10445 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10446 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10447 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10448 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10449 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10450 } 10451 10452 ctsio->scsi_status = SCSI_STATUS_OK; 10453 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10454 ctsio->be_move_done = ctl_config_move_done; 10455 ctl_datamove((union ctl_io *)ctsio); 10456 10457 return (CTL_RETVAL_COMPLETE); 10458} 10459 10460static int 10461ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10462{ 10463 struct scsi_inquiry *cdb; 10464 struct ctl_lun *lun; 10465 int alloc_len, retval; 10466 10467 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10468 cdb = (struct scsi_inquiry *)ctsio->cdb; 10469 10470 retval = CTL_RETVAL_COMPLETE; 10471 10472 alloc_len = scsi_2btoul(cdb->length); 10473 10474 switch (cdb->page_code) { 10475 case SVPD_SUPPORTED_PAGES: 10476 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10477 break; 10478 case SVPD_UNIT_SERIAL_NUMBER: 10479 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10480 break; 10481 case SVPD_DEVICE_ID: 10482 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10483 break; 10484 case SVPD_EXTENDED_INQUIRY_DATA: 10485 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10486 break; 10487 case SVPD_MODE_PAGE_POLICY: 10488 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10489 break; 10490 case SVPD_SCSI_PORTS: 10491 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10492 break; 10493 case SVPD_SCSI_TPC: 10494 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10495 break; 10496 case SVPD_BLOCK_LIMITS: 10497 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10498 break; 10499 case SVPD_BDC: 10500 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10501 break; 10502 case SVPD_LBP: 10503 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10504 break; 10505 default: 10506 ctl_set_invalid_field(ctsio, 10507 /*sks_valid*/ 1, 10508 /*command*/ 1, 10509 /*field*/ 2, 10510 /*bit_valid*/ 0, 10511 /*bit*/ 0); 10512 ctl_done((union ctl_io *)ctsio); 10513 retval = CTL_RETVAL_COMPLETE; 10514 break; 10515 } 10516 10517 return (retval); 10518} 10519 10520static int 10521ctl_inquiry_std(struct ctl_scsiio *ctsio) 10522{ 10523 struct scsi_inquiry_data *inq_ptr; 10524 struct scsi_inquiry *cdb; 10525 struct ctl_softc *ctl_softc; 10526 struct ctl_lun *lun; 10527 char *val; 10528 uint32_t alloc_len; 10529 ctl_port_type port_type; 10530 10531 ctl_softc = control_softc; 10532 10533 /* 10534 * Figure out whether we're talking to a Fibre Channel port or not. 10535 * We treat the ioctl front end, and any SCSI adapters, as packetized 10536 * SCSI front ends. 10537 */ 10538 port_type = ctl_softc->ctl_ports[ 10539 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10540 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10541 port_type = CTL_PORT_SCSI; 10542 10543 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10544 cdb = (struct scsi_inquiry *)ctsio->cdb; 10545 alloc_len = scsi_2btoul(cdb->length); 10546 10547 /* 10548 * We malloc the full inquiry data size here and fill it 10549 * in. If the user only asks for less, we'll give him 10550 * that much. 10551 */ 10552 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10553 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10554 ctsio->kern_sg_entries = 0; 10555 ctsio->kern_data_resid = 0; 10556 ctsio->kern_rel_offset = 0; 10557 10558 if (sizeof(*inq_ptr) < alloc_len) { 10559 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10560 ctsio->kern_data_len = sizeof(*inq_ptr); 10561 ctsio->kern_total_len = sizeof(*inq_ptr); 10562 } else { 10563 ctsio->residual = 0; 10564 ctsio->kern_data_len = alloc_len; 10565 ctsio->kern_total_len = alloc_len; 10566 } 10567 10568 /* 10569 * If we have a LUN configured, report it as connected. Otherwise, 10570 * report that it is offline or no device is supported, depending 10571 * on the value of inquiry_pq_no_lun. 10572 * 10573 * According to the spec (SPC-4 r34), the peripheral qualifier 10574 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10575 * 10576 * "A peripheral device having the specified peripheral device type 10577 * is not connected to this logical unit. However, the device 10578 * server is capable of supporting the specified peripheral device 10579 * type on this logical unit." 10580 * 10581 * According to the same spec, the peripheral qualifier 10582 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10583 * 10584 * "The device server is not capable of supporting a peripheral 10585 * device on this logical unit. For this peripheral qualifier the 10586 * peripheral device type shall be set to 1Fh. All other peripheral 10587 * device type values are reserved for this peripheral qualifier." 10588 * 10589 * Given the text, it would seem that we probably want to report that 10590 * the LUN is offline here. There is no LUN connected, but we can 10591 * support a LUN at the given LUN number. 10592 * 10593 * In the real world, though, it sounds like things are a little 10594 * different: 10595 * 10596 * - Linux, when presented with a LUN with the offline peripheral 10597 * qualifier, will create an sg driver instance for it. So when 10598 * you attach it to CTL, you wind up with a ton of sg driver 10599 * instances. (One for every LUN that Linux bothered to probe.) 10600 * Linux does this despite the fact that it issues a REPORT LUNs 10601 * to LUN 0 to get the inventory of supported LUNs. 10602 * 10603 * - There is other anecdotal evidence (from Emulex folks) about 10604 * arrays that use the offline peripheral qualifier for LUNs that 10605 * are on the "passive" path in an active/passive array. 10606 * 10607 * So the solution is provide a hopefully reasonable default 10608 * (return bad/no LUN) and allow the user to change the behavior 10609 * with a tunable/sysctl variable. 10610 */ 10611 if (lun != NULL) 10612 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10613 lun->be_lun->lun_type; 10614 else if (ctl_softc->inquiry_pq_no_lun == 0) 10615 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10616 else 10617 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10618 10619 /* RMB in byte 2 is 0 */ 10620 inq_ptr->version = SCSI_REV_SPC4; 10621 10622 /* 10623 * According to SAM-3, even if a device only supports a single 10624 * level of LUN addressing, it should still set the HISUP bit: 10625 * 10626 * 4.9.1 Logical unit numbers overview 10627 * 10628 * All logical unit number formats described in this standard are 10629 * hierarchical in structure even when only a single level in that 10630 * hierarchy is used. The HISUP bit shall be set to one in the 10631 * standard INQUIRY data (see SPC-2) when any logical unit number 10632 * format described in this standard is used. Non-hierarchical 10633 * formats are outside the scope of this standard. 10634 * 10635 * Therefore we set the HiSup bit here. 10636 * 10637 * The reponse format is 2, per SPC-3. 10638 */ 10639 inq_ptr->response_format = SID_HiSup | 2; 10640 10641 inq_ptr->additional_length = 10642 offsetof(struct scsi_inquiry_data, vendor_specific1) - 10643 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10644 CTL_DEBUG_PRINT(("additional_length = %d\n", 10645 inq_ptr->additional_length)); 10646 10647 inq_ptr->spc3_flags = SPC3_SID_3PC; 10648 if (!ctl_is_single) 10649 inq_ptr->spc3_flags |= SPC3_SID_TPGS_IMPLICIT; 10650 /* 16 bit addressing */ 10651 if (port_type == CTL_PORT_SCSI) 10652 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10653 /* XXX set the SID_MultiP bit here if we're actually going to 10654 respond on multiple ports */ 10655 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10656 10657 /* 16 bit data bus, synchronous transfers */ 10658 if (port_type == CTL_PORT_SCSI) 10659 inq_ptr->flags = SID_WBus16 | SID_Sync; 10660 /* 10661 * XXX KDM do we want to support tagged queueing on the control 10662 * device at all? 10663 */ 10664 if ((lun == NULL) 10665 || (lun->be_lun->lun_type != T_PROCESSOR)) 10666 inq_ptr->flags |= SID_CmdQue; 10667 /* 10668 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10669 * We have 8 bytes for the vendor name, and 16 bytes for the device 10670 * name and 4 bytes for the revision. 10671 */ 10672 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10673 "vendor")) == NULL) { 10674 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10675 } else { 10676 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10677 strncpy(inq_ptr->vendor, val, 10678 min(sizeof(inq_ptr->vendor), strlen(val))); 10679 } 10680 if (lun == NULL) { 10681 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10682 sizeof(inq_ptr->product)); 10683 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10684 switch (lun->be_lun->lun_type) { 10685 case T_DIRECT: 10686 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10687 sizeof(inq_ptr->product)); 10688 break; 10689 case T_PROCESSOR: 10690 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10691 sizeof(inq_ptr->product)); 10692 break; 10693 default: 10694 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10695 sizeof(inq_ptr->product)); 10696 break; 10697 } 10698 } else { 10699 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10700 strncpy(inq_ptr->product, val, 10701 min(sizeof(inq_ptr->product), strlen(val))); 10702 } 10703 10704 /* 10705 * XXX make this a macro somewhere so it automatically gets 10706 * incremented when we make changes. 10707 */ 10708 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10709 "revision")) == NULL) { 10710 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10711 } else { 10712 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10713 strncpy(inq_ptr->revision, val, 10714 min(sizeof(inq_ptr->revision), strlen(val))); 10715 } 10716 10717 /* 10718 * For parallel SCSI, we support double transition and single 10719 * transition clocking. We also support QAS (Quick Arbitration 10720 * and Selection) and Information Unit transfers on both the 10721 * control and array devices. 10722 */ 10723 if (port_type == CTL_PORT_SCSI) 10724 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10725 SID_SPI_IUS; 10726 10727 /* SAM-5 (no version claimed) */ 10728 scsi_ulto2b(0x00A0, inq_ptr->version1); 10729 /* SPC-4 (no version claimed) */ 10730 scsi_ulto2b(0x0460, inq_ptr->version2); 10731 if (port_type == CTL_PORT_FC) { 10732 /* FCP-2 ANSI INCITS.350:2003 */ 10733 scsi_ulto2b(0x0917, inq_ptr->version3); 10734 } else if (port_type == CTL_PORT_SCSI) { 10735 /* SPI-4 ANSI INCITS.362:200x */ 10736 scsi_ulto2b(0x0B56, inq_ptr->version3); 10737 } else if (port_type == CTL_PORT_ISCSI) { 10738 /* iSCSI (no version claimed) */ 10739 scsi_ulto2b(0x0960, inq_ptr->version3); 10740 } else if (port_type == CTL_PORT_SAS) { 10741 /* SAS (no version claimed) */ 10742 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10743 } 10744 10745 if (lun == NULL) { 10746 /* SBC-3 (no version claimed) */ 10747 scsi_ulto2b(0x04C0, inq_ptr->version4); 10748 } else { 10749 switch (lun->be_lun->lun_type) { 10750 case T_DIRECT: 10751 /* SBC-3 (no version claimed) */ 10752 scsi_ulto2b(0x04C0, inq_ptr->version4); 10753 break; 10754 case T_PROCESSOR: 10755 default: 10756 break; 10757 } 10758 } 10759 10760 ctsio->scsi_status = SCSI_STATUS_OK; 10761 if (ctsio->kern_data_len > 0) { 10762 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10763 ctsio->be_move_done = ctl_config_move_done; 10764 ctl_datamove((union ctl_io *)ctsio); 10765 } else { 10766 ctsio->io_hdr.status = CTL_SUCCESS; 10767 ctl_done((union ctl_io *)ctsio); 10768 } 10769 10770 return (CTL_RETVAL_COMPLETE); 10771} 10772 10773int 10774ctl_inquiry(struct ctl_scsiio *ctsio) 10775{ 10776 struct scsi_inquiry *cdb; 10777 int retval; 10778 10779 cdb = (struct scsi_inquiry *)ctsio->cdb; 10780 10781 retval = 0; 10782 10783 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10784 10785 /* 10786 * Right now, we don't support the CmdDt inquiry information. 10787 * This would be nice to support in the future. When we do 10788 * support it, we should change this test so that it checks to make 10789 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10790 */ 10791#ifdef notyet 10792 if (((cdb->byte2 & SI_EVPD) 10793 && (cdb->byte2 & SI_CMDDT))) 10794#endif 10795 if (cdb->byte2 & SI_CMDDT) { 10796 /* 10797 * Point to the SI_CMDDT bit. We might change this 10798 * when we support SI_CMDDT, but since both bits would be 10799 * "wrong", this should probably just stay as-is then. 10800 */ 10801 ctl_set_invalid_field(ctsio, 10802 /*sks_valid*/ 1, 10803 /*command*/ 1, 10804 /*field*/ 1, 10805 /*bit_valid*/ 1, 10806 /*bit*/ 1); 10807 ctl_done((union ctl_io *)ctsio); 10808 return (CTL_RETVAL_COMPLETE); 10809 } 10810 if (cdb->byte2 & SI_EVPD) 10811 retval = ctl_inquiry_evpd(ctsio); 10812#ifdef notyet 10813 else if (cdb->byte2 & SI_CMDDT) 10814 retval = ctl_inquiry_cmddt(ctsio); 10815#endif 10816 else 10817 retval = ctl_inquiry_std(ctsio); 10818 10819 return (retval); 10820} 10821 10822/* 10823 * For known CDB types, parse the LBA and length. 10824 */ 10825static int 10826ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10827{ 10828 if (io->io_hdr.io_type != CTL_IO_SCSI) 10829 return (1); 10830 10831 switch (io->scsiio.cdb[0]) { 10832 case COMPARE_AND_WRITE: { 10833 struct scsi_compare_and_write *cdb; 10834 10835 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10836 10837 *lba = scsi_8btou64(cdb->addr); 10838 *len = cdb->length; 10839 break; 10840 } 10841 case READ_6: 10842 case WRITE_6: { 10843 struct scsi_rw_6 *cdb; 10844 10845 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10846 10847 *lba = scsi_3btoul(cdb->addr); 10848 /* only 5 bits are valid in the most significant address byte */ 10849 *lba &= 0x1fffff; 10850 *len = cdb->length; 10851 break; 10852 } 10853 case READ_10: 10854 case WRITE_10: { 10855 struct scsi_rw_10 *cdb; 10856 10857 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10858 10859 *lba = scsi_4btoul(cdb->addr); 10860 *len = scsi_2btoul(cdb->length); 10861 break; 10862 } 10863 case WRITE_VERIFY_10: { 10864 struct scsi_write_verify_10 *cdb; 10865 10866 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10867 10868 *lba = scsi_4btoul(cdb->addr); 10869 *len = scsi_2btoul(cdb->length); 10870 break; 10871 } 10872 case READ_12: 10873 case WRITE_12: { 10874 struct scsi_rw_12 *cdb; 10875 10876 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10877 10878 *lba = scsi_4btoul(cdb->addr); 10879 *len = scsi_4btoul(cdb->length); 10880 break; 10881 } 10882 case WRITE_VERIFY_12: { 10883 struct scsi_write_verify_12 *cdb; 10884 10885 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10886 10887 *lba = scsi_4btoul(cdb->addr); 10888 *len = scsi_4btoul(cdb->length); 10889 break; 10890 } 10891 case READ_16: 10892 case WRITE_16: { 10893 struct scsi_rw_16 *cdb; 10894 10895 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10896 10897 *lba = scsi_8btou64(cdb->addr); 10898 *len = scsi_4btoul(cdb->length); 10899 break; 10900 } 10901 case WRITE_VERIFY_16: { 10902 struct scsi_write_verify_16 *cdb; 10903 10904 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10905 10906 10907 *lba = scsi_8btou64(cdb->addr); 10908 *len = scsi_4btoul(cdb->length); 10909 break; 10910 } 10911 case WRITE_SAME_10: { 10912 struct scsi_write_same_10 *cdb; 10913 10914 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10915 10916 *lba = scsi_4btoul(cdb->addr); 10917 *len = scsi_2btoul(cdb->length); 10918 break; 10919 } 10920 case WRITE_SAME_16: { 10921 struct scsi_write_same_16 *cdb; 10922 10923 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10924 10925 *lba = scsi_8btou64(cdb->addr); 10926 *len = scsi_4btoul(cdb->length); 10927 break; 10928 } 10929 case VERIFY_10: { 10930 struct scsi_verify_10 *cdb; 10931 10932 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10933 10934 *lba = scsi_4btoul(cdb->addr); 10935 *len = scsi_2btoul(cdb->length); 10936 break; 10937 } 10938 case VERIFY_12: { 10939 struct scsi_verify_12 *cdb; 10940 10941 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10942 10943 *lba = scsi_4btoul(cdb->addr); 10944 *len = scsi_4btoul(cdb->length); 10945 break; 10946 } 10947 case VERIFY_16: { 10948 struct scsi_verify_16 *cdb; 10949 10950 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10951 10952 *lba = scsi_8btou64(cdb->addr); 10953 *len = scsi_4btoul(cdb->length); 10954 break; 10955 } 10956 case UNMAP: { 10957 *lba = 0; 10958 *len = UINT64_MAX; 10959 break; 10960 } 10961 default: 10962 return (1); 10963 break; /* NOTREACHED */ 10964 } 10965 10966 return (0); 10967} 10968 10969static ctl_action 10970ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10971{ 10972 uint64_t endlba1, endlba2; 10973 10974 endlba1 = lba1 + len1 - 1; 10975 endlba2 = lba2 + len2 - 1; 10976 10977 if ((endlba1 < lba2) 10978 || (endlba2 < lba1)) 10979 return (CTL_ACTION_PASS); 10980 else 10981 return (CTL_ACTION_BLOCK); 10982} 10983 10984static int 10985ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10986{ 10987 struct ctl_ptr_len_flags *ptrlen; 10988 struct scsi_unmap_desc *buf, *end, *range; 10989 uint64_t lba; 10990 uint32_t len; 10991 10992 /* If not UNMAP -- go other way. */ 10993 if (io->io_hdr.io_type != CTL_IO_SCSI || 10994 io->scsiio.cdb[0] != UNMAP) 10995 return (CTL_ACTION_ERROR); 10996 10997 /* If UNMAP without data -- block and wait for data. */ 10998 ptrlen = (struct ctl_ptr_len_flags *) 10999 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 11000 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 11001 ptrlen->ptr == NULL) 11002 return (CTL_ACTION_BLOCK); 11003 11004 /* UNMAP with data -- check for collision. */ 11005 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 11006 end = buf + ptrlen->len / sizeof(*buf); 11007 for (range = buf; range < end; range++) { 11008 lba = scsi_8btou64(range->lba); 11009 len = scsi_4btoul(range->length); 11010 if ((lba < lba2 + len2) && (lba + len > lba2)) 11011 return (CTL_ACTION_BLOCK); 11012 } 11013 return (CTL_ACTION_PASS); 11014} 11015 11016static ctl_action 11017ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 11018{ 11019 uint64_t lba1, lba2; 11020 uint64_t len1, len2; 11021 int retval; 11022 11023 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 11024 return (CTL_ACTION_ERROR); 11025 11026 retval = ctl_extent_check_unmap(io2, lba1, len1); 11027 if (retval != CTL_ACTION_ERROR) 11028 return (retval); 11029 11030 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 11031 return (CTL_ACTION_ERROR); 11032 11033 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 11034} 11035 11036static ctl_action 11037ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 11038{ 11039 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11040 ctl_serialize_action *serialize_row; 11041 11042 /* 11043 * The initiator attempted multiple untagged commands at the same 11044 * time. Can't do that. 11045 */ 11046 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11047 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11048 && ((pending_io->io_hdr.nexus.targ_port == 11049 ooa_io->io_hdr.nexus.targ_port) 11050 && (pending_io->io_hdr.nexus.initid.id == 11051 ooa_io->io_hdr.nexus.initid.id)) 11052 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11053 return (CTL_ACTION_OVERLAP); 11054 11055 /* 11056 * The initiator attempted to send multiple tagged commands with 11057 * the same ID. (It's fine if different initiators have the same 11058 * tag ID.) 11059 * 11060 * Even if all of those conditions are true, we don't kill the I/O 11061 * if the command ahead of us has been aborted. We won't end up 11062 * sending it to the FETD, and it's perfectly legal to resend a 11063 * command with the same tag number as long as the previous 11064 * instance of this tag number has been aborted somehow. 11065 */ 11066 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11067 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11068 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11069 && ((pending_io->io_hdr.nexus.targ_port == 11070 ooa_io->io_hdr.nexus.targ_port) 11071 && (pending_io->io_hdr.nexus.initid.id == 11072 ooa_io->io_hdr.nexus.initid.id)) 11073 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11074 return (CTL_ACTION_OVERLAP_TAG); 11075 11076 /* 11077 * If we get a head of queue tag, SAM-3 says that we should 11078 * immediately execute it. 11079 * 11080 * What happens if this command would normally block for some other 11081 * reason? e.g. a request sense with a head of queue tag 11082 * immediately after a write. Normally that would block, but this 11083 * will result in its getting executed immediately... 11084 * 11085 * We currently return "pass" instead of "skip", so we'll end up 11086 * going through the rest of the queue to check for overlapped tags. 11087 * 11088 * XXX KDM check for other types of blockage first?? 11089 */ 11090 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11091 return (CTL_ACTION_PASS); 11092 11093 /* 11094 * Ordered tags have to block until all items ahead of them 11095 * have completed. If we get called with an ordered tag, we always 11096 * block, if something else is ahead of us in the queue. 11097 */ 11098 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11099 return (CTL_ACTION_BLOCK); 11100 11101 /* 11102 * Simple tags get blocked until all head of queue and ordered tags 11103 * ahead of them have completed. I'm lumping untagged commands in 11104 * with simple tags here. XXX KDM is that the right thing to do? 11105 */ 11106 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11107 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11108 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11109 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11110 return (CTL_ACTION_BLOCK); 11111 11112 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 11113 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 11114 11115 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11116 11117 switch (serialize_row[pending_entry->seridx]) { 11118 case CTL_SER_BLOCK: 11119 return (CTL_ACTION_BLOCK); 11120 break; /* NOTREACHED */ 11121 case CTL_SER_EXTENT: 11122 return (ctl_extent_check(pending_io, ooa_io)); 11123 break; /* NOTREACHED */ 11124 case CTL_SER_PASS: 11125 return (CTL_ACTION_PASS); 11126 break; /* NOTREACHED */ 11127 case CTL_SER_SKIP: 11128 return (CTL_ACTION_SKIP); 11129 break; 11130 default: 11131 panic("invalid serialization value %d", 11132 serialize_row[pending_entry->seridx]); 11133 break; /* NOTREACHED */ 11134 } 11135 11136 return (CTL_ACTION_ERROR); 11137} 11138 11139/* 11140 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11141 * Assumptions: 11142 * - pending_io is generally either incoming, or on the blocked queue 11143 * - starting I/O is the I/O we want to start the check with. 11144 */ 11145static ctl_action 11146ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11147 union ctl_io *starting_io) 11148{ 11149 union ctl_io *ooa_io; 11150 ctl_action action; 11151 11152 mtx_assert(&lun->lun_lock, MA_OWNED); 11153 11154 /* 11155 * Run back along the OOA queue, starting with the current 11156 * blocked I/O and going through every I/O before it on the 11157 * queue. If starting_io is NULL, we'll just end up returning 11158 * CTL_ACTION_PASS. 11159 */ 11160 for (ooa_io = starting_io; ooa_io != NULL; 11161 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11162 ooa_links)){ 11163 11164 /* 11165 * This routine just checks to see whether 11166 * cur_blocked is blocked by ooa_io, which is ahead 11167 * of it in the queue. It doesn't queue/dequeue 11168 * cur_blocked. 11169 */ 11170 action = ctl_check_for_blockage(pending_io, ooa_io); 11171 switch (action) { 11172 case CTL_ACTION_BLOCK: 11173 case CTL_ACTION_OVERLAP: 11174 case CTL_ACTION_OVERLAP_TAG: 11175 case CTL_ACTION_SKIP: 11176 case CTL_ACTION_ERROR: 11177 return (action); 11178 break; /* NOTREACHED */ 11179 case CTL_ACTION_PASS: 11180 break; 11181 default: 11182 panic("invalid action %d", action); 11183 break; /* NOTREACHED */ 11184 } 11185 } 11186 11187 return (CTL_ACTION_PASS); 11188} 11189 11190/* 11191 * Assumptions: 11192 * - An I/O has just completed, and has been removed from the per-LUN OOA 11193 * queue, so some items on the blocked queue may now be unblocked. 11194 */ 11195static int 11196ctl_check_blocked(struct ctl_lun *lun) 11197{ 11198 union ctl_io *cur_blocked, *next_blocked; 11199 11200 mtx_assert(&lun->lun_lock, MA_OWNED); 11201 11202 /* 11203 * Run forward from the head of the blocked queue, checking each 11204 * entry against the I/Os prior to it on the OOA queue to see if 11205 * there is still any blockage. 11206 * 11207 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11208 * with our removing a variable on it while it is traversing the 11209 * list. 11210 */ 11211 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11212 cur_blocked != NULL; cur_blocked = next_blocked) { 11213 union ctl_io *prev_ooa; 11214 ctl_action action; 11215 11216 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11217 blocked_links); 11218 11219 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11220 ctl_ooaq, ooa_links); 11221 11222 /* 11223 * If cur_blocked happens to be the first item in the OOA 11224 * queue now, prev_ooa will be NULL, and the action 11225 * returned will just be CTL_ACTION_PASS. 11226 */ 11227 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11228 11229 switch (action) { 11230 case CTL_ACTION_BLOCK: 11231 /* Nothing to do here, still blocked */ 11232 break; 11233 case CTL_ACTION_OVERLAP: 11234 case CTL_ACTION_OVERLAP_TAG: 11235 /* 11236 * This shouldn't happen! In theory we've already 11237 * checked this command for overlap... 11238 */ 11239 break; 11240 case CTL_ACTION_PASS: 11241 case CTL_ACTION_SKIP: { 11242 struct ctl_softc *softc; 11243 const struct ctl_cmd_entry *entry; 11244 uint32_t initidx; 11245 int isc_retval; 11246 11247 /* 11248 * The skip case shouldn't happen, this transaction 11249 * should have never made it onto the blocked queue. 11250 */ 11251 /* 11252 * This I/O is no longer blocked, we can remove it 11253 * from the blocked queue. Since this is a TAILQ 11254 * (doubly linked list), we can do O(1) removals 11255 * from any place on the list. 11256 */ 11257 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11258 blocked_links); 11259 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11260 11261 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11262 /* 11263 * Need to send IO back to original side to 11264 * run 11265 */ 11266 union ctl_ha_msg msg_info; 11267 11268 msg_info.hdr.original_sc = 11269 cur_blocked->io_hdr.original_sc; 11270 msg_info.hdr.serializing_sc = cur_blocked; 11271 msg_info.hdr.msg_type = CTL_MSG_R2R; 11272 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11273 &msg_info, sizeof(msg_info), 0)) > 11274 CTL_HA_STATUS_SUCCESS) { 11275 printf("CTL:Check Blocked error from " 11276 "ctl_ha_msg_send %d\n", 11277 isc_retval); 11278 } 11279 break; 11280 } 11281 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 11282 softc = control_softc; 11283 11284 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11285 11286 /* 11287 * Check this I/O for LUN state changes that may 11288 * have happened while this command was blocked. 11289 * The LUN state may have been changed by a command 11290 * ahead of us in the queue, so we need to re-check 11291 * for any states that can be caused by SCSI 11292 * commands. 11293 */ 11294 if (ctl_scsiio_lun_check(softc, lun, entry, 11295 &cur_blocked->scsiio) == 0) { 11296 cur_blocked->io_hdr.flags |= 11297 CTL_FLAG_IS_WAS_ON_RTR; 11298 ctl_enqueue_rtr(cur_blocked); 11299 } else 11300 ctl_done(cur_blocked); 11301 break; 11302 } 11303 default: 11304 /* 11305 * This probably shouldn't happen -- we shouldn't 11306 * get CTL_ACTION_ERROR, or anything else. 11307 */ 11308 break; 11309 } 11310 } 11311 11312 return (CTL_RETVAL_COMPLETE); 11313} 11314 11315/* 11316 * This routine (with one exception) checks LUN flags that can be set by 11317 * commands ahead of us in the OOA queue. These flags have to be checked 11318 * when a command initially comes in, and when we pull a command off the 11319 * blocked queue and are preparing to execute it. The reason we have to 11320 * check these flags for commands on the blocked queue is that the LUN 11321 * state may have been changed by a command ahead of us while we're on the 11322 * blocked queue. 11323 * 11324 * Ordering is somewhat important with these checks, so please pay 11325 * careful attention to the placement of any new checks. 11326 */ 11327static int 11328ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11329 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11330{ 11331 int retval; 11332 11333 retval = 0; 11334 11335 mtx_assert(&lun->lun_lock, MA_OWNED); 11336 11337 /* 11338 * If this shelf is a secondary shelf controller, we have to reject 11339 * any media access commands. 11340 */ 11341#if 0 11342 /* No longer needed for HA */ 11343 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11344 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11345 ctl_set_lun_standby(ctsio); 11346 retval = 1; 11347 goto bailout; 11348 } 11349#endif 11350 11351 /* 11352 * Check for a reservation conflict. If this command isn't allowed 11353 * even on reserved LUNs, and if this initiator isn't the one who 11354 * reserved us, reject the command with a reservation conflict. 11355 */ 11356 if ((lun->flags & CTL_LUN_RESERVED) 11357 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11358 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11359 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11360 || (ctsio->io_hdr.nexus.targ_target.id != 11361 lun->rsv_nexus.targ_target.id)) { 11362 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11363 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11364 retval = 1; 11365 goto bailout; 11366 } 11367 } 11368 11369 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11370 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11371 uint32_t residx; 11372 11373 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11374 /* 11375 * if we aren't registered or it's a res holder type 11376 * reservation and this isn't the res holder then set a 11377 * conflict. 11378 * NOTE: Commands which might be allowed on write exclusive 11379 * type reservations are checked in the particular command 11380 * for a conflict. Read and SSU are the only ones. 11381 */ 11382 if (!lun->per_res[residx].registered 11383 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11384 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11385 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11386 retval = 1; 11387 goto bailout; 11388 } 11389 11390 } 11391 11392 if ((lun->flags & CTL_LUN_OFFLINE) 11393 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11394 ctl_set_lun_not_ready(ctsio); 11395 retval = 1; 11396 goto bailout; 11397 } 11398 11399 /* 11400 * If the LUN is stopped, see if this particular command is allowed 11401 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11402 */ 11403 if ((lun->flags & CTL_LUN_STOPPED) 11404 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11405 /* "Logical unit not ready, initializing cmd. required" */ 11406 ctl_set_lun_stopped(ctsio); 11407 retval = 1; 11408 goto bailout; 11409 } 11410 11411 if ((lun->flags & CTL_LUN_INOPERABLE) 11412 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11413 /* "Medium format corrupted" */ 11414 ctl_set_medium_format_corrupted(ctsio); 11415 retval = 1; 11416 goto bailout; 11417 } 11418 11419bailout: 11420 return (retval); 11421 11422} 11423 11424static void 11425ctl_failover_io(union ctl_io *io, int have_lock) 11426{ 11427 ctl_set_busy(&io->scsiio); 11428 ctl_done(io); 11429} 11430 11431static void 11432ctl_failover(void) 11433{ 11434 struct ctl_lun *lun; 11435 struct ctl_softc *ctl_softc; 11436 union ctl_io *next_io, *pending_io; 11437 union ctl_io *io; 11438 int lun_idx; 11439 int i; 11440 11441 ctl_softc = control_softc; 11442 11443 mtx_lock(&ctl_softc->ctl_lock); 11444 /* 11445 * Remove any cmds from the other SC from the rtr queue. These 11446 * will obviously only be for LUNs for which we're the primary. 11447 * We can't send status or get/send data for these commands. 11448 * Since they haven't been executed yet, we can just remove them. 11449 * We'll either abort them or delete them below, depending on 11450 * which HA mode we're in. 11451 */ 11452#ifdef notyet 11453 mtx_lock(&ctl_softc->queue_lock); 11454 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11455 io != NULL; io = next_io) { 11456 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11457 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11458 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11459 ctl_io_hdr, links); 11460 } 11461 mtx_unlock(&ctl_softc->queue_lock); 11462#endif 11463 11464 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11465 lun = ctl_softc->ctl_luns[lun_idx]; 11466 if (lun==NULL) 11467 continue; 11468 11469 /* 11470 * Processor LUNs are primary on both sides. 11471 * XXX will this always be true? 11472 */ 11473 if (lun->be_lun->lun_type == T_PROCESSOR) 11474 continue; 11475 11476 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11477 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11478 printf("FAILOVER: primary lun %d\n", lun_idx); 11479 /* 11480 * Remove all commands from the other SC. First from the 11481 * blocked queue then from the ooa queue. Once we have 11482 * removed them. Call ctl_check_blocked to see if there 11483 * is anything that can run. 11484 */ 11485 for (io = (union ctl_io *)TAILQ_FIRST( 11486 &lun->blocked_queue); io != NULL; io = next_io) { 11487 11488 next_io = (union ctl_io *)TAILQ_NEXT( 11489 &io->io_hdr, blocked_links); 11490 11491 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11492 TAILQ_REMOVE(&lun->blocked_queue, 11493 &io->io_hdr,blocked_links); 11494 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11495 TAILQ_REMOVE(&lun->ooa_queue, 11496 &io->io_hdr, ooa_links); 11497 11498 ctl_free_io(io); 11499 } 11500 } 11501 11502 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11503 io != NULL; io = next_io) { 11504 11505 next_io = (union ctl_io *)TAILQ_NEXT( 11506 &io->io_hdr, ooa_links); 11507 11508 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11509 11510 TAILQ_REMOVE(&lun->ooa_queue, 11511 &io->io_hdr, 11512 ooa_links); 11513 11514 ctl_free_io(io); 11515 } 11516 } 11517 ctl_check_blocked(lun); 11518 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11519 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11520 11521 printf("FAILOVER: primary lun %d\n", lun_idx); 11522 /* 11523 * Abort all commands from the other SC. We can't 11524 * send status back for them now. These should get 11525 * cleaned up when they are completed or come out 11526 * for a datamove operation. 11527 */ 11528 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11529 io != NULL; io = next_io) { 11530 next_io = (union ctl_io *)TAILQ_NEXT( 11531 &io->io_hdr, ooa_links); 11532 11533 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11534 io->io_hdr.flags |= CTL_FLAG_ABORT; 11535 } 11536 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11537 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11538 11539 printf("FAILOVER: secondary lun %d\n", lun_idx); 11540 11541 lun->flags |= CTL_LUN_PRIMARY_SC; 11542 11543 /* 11544 * We send all I/O that was sent to this controller 11545 * and redirected to the other side back with 11546 * busy status, and have the initiator retry it. 11547 * Figuring out how much data has been transferred, 11548 * etc. and picking up where we left off would be 11549 * very tricky. 11550 * 11551 * XXX KDM need to remove I/O from the blocked 11552 * queue as well! 11553 */ 11554 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11555 &lun->ooa_queue); pending_io != NULL; 11556 pending_io = next_io) { 11557 11558 next_io = (union ctl_io *)TAILQ_NEXT( 11559 &pending_io->io_hdr, ooa_links); 11560 11561 pending_io->io_hdr.flags &= 11562 ~CTL_FLAG_SENT_2OTHER_SC; 11563 11564 if (pending_io->io_hdr.flags & 11565 CTL_FLAG_IO_ACTIVE) { 11566 pending_io->io_hdr.flags |= 11567 CTL_FLAG_FAILOVER; 11568 } else { 11569 ctl_set_busy(&pending_io->scsiio); 11570 ctl_done(pending_io); 11571 } 11572 } 11573 11574 /* 11575 * Build Unit Attention 11576 */ 11577 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11578 lun->pending_ua[i] |= 11579 CTL_UA_ASYM_ACC_CHANGE; 11580 } 11581 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11582 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11583 printf("FAILOVER: secondary lun %d\n", lun_idx); 11584 /* 11585 * if the first io on the OOA is not on the RtR queue 11586 * add it. 11587 */ 11588 lun->flags |= CTL_LUN_PRIMARY_SC; 11589 11590 pending_io = (union ctl_io *)TAILQ_FIRST( 11591 &lun->ooa_queue); 11592 if (pending_io==NULL) { 11593 printf("Nothing on OOA queue\n"); 11594 continue; 11595 } 11596 11597 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11598 if ((pending_io->io_hdr.flags & 11599 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11600 pending_io->io_hdr.flags |= 11601 CTL_FLAG_IS_WAS_ON_RTR; 11602 ctl_enqueue_rtr(pending_io); 11603 } 11604#if 0 11605 else 11606 { 11607 printf("Tag 0x%04x is running\n", 11608 pending_io->scsiio.tag_num); 11609 } 11610#endif 11611 11612 next_io = (union ctl_io *)TAILQ_NEXT( 11613 &pending_io->io_hdr, ooa_links); 11614 for (pending_io=next_io; pending_io != NULL; 11615 pending_io = next_io) { 11616 pending_io->io_hdr.flags &= 11617 ~CTL_FLAG_SENT_2OTHER_SC; 11618 next_io = (union ctl_io *)TAILQ_NEXT( 11619 &pending_io->io_hdr, ooa_links); 11620 if (pending_io->io_hdr.flags & 11621 CTL_FLAG_IS_WAS_ON_RTR) { 11622#if 0 11623 printf("Tag 0x%04x is running\n", 11624 pending_io->scsiio.tag_num); 11625#endif 11626 continue; 11627 } 11628 11629 switch (ctl_check_ooa(lun, pending_io, 11630 (union ctl_io *)TAILQ_PREV( 11631 &pending_io->io_hdr, ctl_ooaq, 11632 ooa_links))) { 11633 11634 case CTL_ACTION_BLOCK: 11635 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11636 &pending_io->io_hdr, 11637 blocked_links); 11638 pending_io->io_hdr.flags |= 11639 CTL_FLAG_BLOCKED; 11640 break; 11641 case CTL_ACTION_PASS: 11642 case CTL_ACTION_SKIP: 11643 pending_io->io_hdr.flags |= 11644 CTL_FLAG_IS_WAS_ON_RTR; 11645 ctl_enqueue_rtr(pending_io); 11646 break; 11647 case CTL_ACTION_OVERLAP: 11648 ctl_set_overlapped_cmd( 11649 (struct ctl_scsiio *)pending_io); 11650 ctl_done(pending_io); 11651 break; 11652 case CTL_ACTION_OVERLAP_TAG: 11653 ctl_set_overlapped_tag( 11654 (struct ctl_scsiio *)pending_io, 11655 pending_io->scsiio.tag_num & 0xff); 11656 ctl_done(pending_io); 11657 break; 11658 case CTL_ACTION_ERROR: 11659 default: 11660 ctl_set_internal_failure( 11661 (struct ctl_scsiio *)pending_io, 11662 0, // sks_valid 11663 0); //retry count 11664 ctl_done(pending_io); 11665 break; 11666 } 11667 } 11668 11669 /* 11670 * Build Unit Attention 11671 */ 11672 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11673 lun->pending_ua[i] |= 11674 CTL_UA_ASYM_ACC_CHANGE; 11675 } 11676 } else { 11677 panic("Unhandled HA mode failover, LUN flags = %#x, " 11678 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11679 } 11680 } 11681 ctl_pause_rtr = 0; 11682 mtx_unlock(&ctl_softc->ctl_lock); 11683} 11684 11685static int 11686ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11687{ 11688 struct ctl_lun *lun; 11689 const struct ctl_cmd_entry *entry; 11690 uint32_t initidx, targ_lun; 11691 int retval; 11692 11693 retval = 0; 11694 11695 lun = NULL; 11696 11697 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11698 if ((targ_lun < CTL_MAX_LUNS) 11699 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11700 lun = ctl_softc->ctl_luns[targ_lun]; 11701 /* 11702 * If the LUN is invalid, pretend that it doesn't exist. 11703 * It will go away as soon as all pending I/O has been 11704 * completed. 11705 */ 11706 if (lun->flags & CTL_LUN_DISABLED) { 11707 lun = NULL; 11708 } else { 11709 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11710 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11711 lun->be_lun; 11712 if (lun->be_lun->lun_type == T_PROCESSOR) { 11713 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11714 } 11715 11716 /* 11717 * Every I/O goes into the OOA queue for a 11718 * particular LUN, and stays there until completion. 11719 */ 11720 mtx_lock(&lun->lun_lock); 11721 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11722 ooa_links); 11723 } 11724 } else { 11725 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11726 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11727 } 11728 11729 /* Get command entry and return error if it is unsuppotyed. */ 11730 entry = ctl_validate_command(ctsio); 11731 if (entry == NULL) { 11732 if (lun) 11733 mtx_unlock(&lun->lun_lock); 11734 return (retval); 11735 } 11736 11737 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11738 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11739 11740 /* 11741 * Check to see whether we can send this command to LUNs that don't 11742 * exist. This should pretty much only be the case for inquiry 11743 * and request sense. Further checks, below, really require having 11744 * a LUN, so we can't really check the command anymore. Just put 11745 * it on the rtr queue. 11746 */ 11747 if (lun == NULL) { 11748 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11749 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11750 ctl_enqueue_rtr((union ctl_io *)ctsio); 11751 return (retval); 11752 } 11753 11754 ctl_set_unsupported_lun(ctsio); 11755 ctl_done((union ctl_io *)ctsio); 11756 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11757 return (retval); 11758 } else { 11759 /* 11760 * Make sure we support this particular command on this LUN. 11761 * e.g., we don't support writes to the control LUN. 11762 */ 11763 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11764 mtx_unlock(&lun->lun_lock); 11765 ctl_set_invalid_opcode(ctsio); 11766 ctl_done((union ctl_io *)ctsio); 11767 return (retval); 11768 } 11769 } 11770 11771 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11772 11773#ifdef CTL_WITH_CA 11774 /* 11775 * If we've got a request sense, it'll clear the contingent 11776 * allegiance condition. Otherwise, if we have a CA condition for 11777 * this initiator, clear it, because it sent down a command other 11778 * than request sense. 11779 */ 11780 if ((ctsio->cdb[0] != REQUEST_SENSE) 11781 && (ctl_is_set(lun->have_ca, initidx))) 11782 ctl_clear_mask(lun->have_ca, initidx); 11783#endif 11784 11785 /* 11786 * If the command has this flag set, it handles its own unit 11787 * attention reporting, we shouldn't do anything. Otherwise we 11788 * check for any pending unit attentions, and send them back to the 11789 * initiator. We only do this when a command initially comes in, 11790 * not when we pull it off the blocked queue. 11791 * 11792 * According to SAM-3, section 5.3.2, the order that things get 11793 * presented back to the host is basically unit attentions caused 11794 * by some sort of reset event, busy status, reservation conflicts 11795 * or task set full, and finally any other status. 11796 * 11797 * One issue here is that some of the unit attentions we report 11798 * don't fall into the "reset" category (e.g. "reported luns data 11799 * has changed"). So reporting it here, before the reservation 11800 * check, may be technically wrong. I guess the only thing to do 11801 * would be to check for and report the reset events here, and then 11802 * check for the other unit attention types after we check for a 11803 * reservation conflict. 11804 * 11805 * XXX KDM need to fix this 11806 */ 11807 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11808 ctl_ua_type ua_type; 11809 11810 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11811 scsi_sense_data_type sense_format; 11812 11813 if (lun != NULL) 11814 sense_format = (lun->flags & 11815 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11816 SSD_TYPE_FIXED; 11817 else 11818 sense_format = SSD_TYPE_FIXED; 11819 11820 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11821 &ctsio->sense_data, sense_format); 11822 if (ua_type != CTL_UA_NONE) { 11823 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11824 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11825 CTL_AUTOSENSE; 11826 ctsio->sense_len = SSD_FULL_SIZE; 11827 mtx_unlock(&lun->lun_lock); 11828 ctl_done((union ctl_io *)ctsio); 11829 return (retval); 11830 } 11831 } 11832 } 11833 11834 11835 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11836 mtx_unlock(&lun->lun_lock); 11837 ctl_done((union ctl_io *)ctsio); 11838 return (retval); 11839 } 11840 11841 /* 11842 * XXX CHD this is where we want to send IO to other side if 11843 * this LUN is secondary on this SC. We will need to make a copy 11844 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11845 * the copy we send as FROM_OTHER. 11846 * We also need to stuff the address of the original IO so we can 11847 * find it easily. Something similar will need be done on the other 11848 * side so when we are done we can find the copy. 11849 */ 11850 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11851 union ctl_ha_msg msg_info; 11852 int isc_retval; 11853 11854 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11855 11856 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11857 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11858#if 0 11859 printf("1. ctsio %p\n", ctsio); 11860#endif 11861 msg_info.hdr.serializing_sc = NULL; 11862 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11863 msg_info.scsi.tag_num = ctsio->tag_num; 11864 msg_info.scsi.tag_type = ctsio->tag_type; 11865 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11866 11867 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11868 11869 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11870 (void *)&msg_info, sizeof(msg_info), 0)) > 11871 CTL_HA_STATUS_SUCCESS) { 11872 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11873 isc_retval); 11874 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11875 } else { 11876#if 0 11877 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11878#endif 11879 } 11880 11881 /* 11882 * XXX KDM this I/O is off the incoming queue, but hasn't 11883 * been inserted on any other queue. We may need to come 11884 * up with a holding queue while we wait for serialization 11885 * so that we have an idea of what we're waiting for from 11886 * the other side. 11887 */ 11888 mtx_unlock(&lun->lun_lock); 11889 return (retval); 11890 } 11891 11892 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11893 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11894 ctl_ooaq, ooa_links))) { 11895 case CTL_ACTION_BLOCK: 11896 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11897 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11898 blocked_links); 11899 mtx_unlock(&lun->lun_lock); 11900 return (retval); 11901 case CTL_ACTION_PASS: 11902 case CTL_ACTION_SKIP: 11903 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11904 mtx_unlock(&lun->lun_lock); 11905 ctl_enqueue_rtr((union ctl_io *)ctsio); 11906 break; 11907 case CTL_ACTION_OVERLAP: 11908 mtx_unlock(&lun->lun_lock); 11909 ctl_set_overlapped_cmd(ctsio); 11910 ctl_done((union ctl_io *)ctsio); 11911 break; 11912 case CTL_ACTION_OVERLAP_TAG: 11913 mtx_unlock(&lun->lun_lock); 11914 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11915 ctl_done((union ctl_io *)ctsio); 11916 break; 11917 case CTL_ACTION_ERROR: 11918 default: 11919 mtx_unlock(&lun->lun_lock); 11920 ctl_set_internal_failure(ctsio, 11921 /*sks_valid*/ 0, 11922 /*retry_count*/ 0); 11923 ctl_done((union ctl_io *)ctsio); 11924 break; 11925 } 11926 return (retval); 11927} 11928 11929const struct ctl_cmd_entry * 11930ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11931{ 11932 const struct ctl_cmd_entry *entry; 11933 int service_action; 11934 11935 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11936 if (entry->flags & CTL_CMD_FLAG_SA5) { 11937 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11938 entry = &((const struct ctl_cmd_entry *) 11939 entry->execute)[service_action]; 11940 } 11941 return (entry); 11942} 11943 11944const struct ctl_cmd_entry * 11945ctl_validate_command(struct ctl_scsiio *ctsio) 11946{ 11947 const struct ctl_cmd_entry *entry; 11948 int i; 11949 uint8_t diff; 11950 11951 entry = ctl_get_cmd_entry(ctsio); 11952 if (entry->execute == NULL) { 11953 ctl_set_invalid_opcode(ctsio); 11954 ctl_done((union ctl_io *)ctsio); 11955 return (NULL); 11956 } 11957 KASSERT(entry->length > 0, 11958 ("Not defined length for command 0x%02x/0x%02x", 11959 ctsio->cdb[0], ctsio->cdb[1])); 11960 for (i = 1; i < entry->length; i++) { 11961 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11962 if (diff == 0) 11963 continue; 11964 ctl_set_invalid_field(ctsio, 11965 /*sks_valid*/ 1, 11966 /*command*/ 1, 11967 /*field*/ i, 11968 /*bit_valid*/ 1, 11969 /*bit*/ fls(diff) - 1); 11970 ctl_done((union ctl_io *)ctsio); 11971 return (NULL); 11972 } 11973 return (entry); 11974} 11975 11976static int 11977ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11978{ 11979 11980 switch (lun_type) { 11981 case T_PROCESSOR: 11982 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11983 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11984 return (0); 11985 break; 11986 case T_DIRECT: 11987 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11988 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11989 return (0); 11990 break; 11991 default: 11992 return (0); 11993 } 11994 return (1); 11995} 11996 11997static int 11998ctl_scsiio(struct ctl_scsiio *ctsio) 11999{ 12000 int retval; 12001 const struct ctl_cmd_entry *entry; 12002 12003 retval = CTL_RETVAL_COMPLETE; 12004 12005 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 12006 12007 entry = ctl_get_cmd_entry(ctsio); 12008 12009 /* 12010 * If this I/O has been aborted, just send it straight to 12011 * ctl_done() without executing it. 12012 */ 12013 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 12014 ctl_done((union ctl_io *)ctsio); 12015 goto bailout; 12016 } 12017 12018 /* 12019 * All the checks should have been handled by ctl_scsiio_precheck(). 12020 * We should be clear now to just execute the I/O. 12021 */ 12022 retval = entry->execute(ctsio); 12023 12024bailout: 12025 return (retval); 12026} 12027 12028/* 12029 * Since we only implement one target right now, a bus reset simply resets 12030 * our single target. 12031 */ 12032static int 12033ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 12034{ 12035 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 12036} 12037 12038static int 12039ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 12040 ctl_ua_type ua_type) 12041{ 12042 struct ctl_lun *lun; 12043 int retval; 12044 12045 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12046 union ctl_ha_msg msg_info; 12047 12048 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12049 msg_info.hdr.nexus = io->io_hdr.nexus; 12050 if (ua_type==CTL_UA_TARG_RESET) 12051 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 12052 else 12053 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12054 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12055 msg_info.hdr.original_sc = NULL; 12056 msg_info.hdr.serializing_sc = NULL; 12057 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12058 (void *)&msg_info, sizeof(msg_info), 0)) { 12059 } 12060 } 12061 retval = 0; 12062 12063 mtx_lock(&ctl_softc->ctl_lock); 12064 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12065 retval += ctl_lun_reset(lun, io, ua_type); 12066 mtx_unlock(&ctl_softc->ctl_lock); 12067 12068 return (retval); 12069} 12070 12071/* 12072 * The LUN should always be set. The I/O is optional, and is used to 12073 * distinguish between I/Os sent by this initiator, and by other 12074 * initiators. We set unit attention for initiators other than this one. 12075 * SAM-3 is vague on this point. It does say that a unit attention should 12076 * be established for other initiators when a LUN is reset (see section 12077 * 5.7.3), but it doesn't specifically say that the unit attention should 12078 * be established for this particular initiator when a LUN is reset. Here 12079 * is the relevant text, from SAM-3 rev 8: 12080 * 12081 * 5.7.2 When a SCSI initiator port aborts its own tasks 12082 * 12083 * When a SCSI initiator port causes its own task(s) to be aborted, no 12084 * notification that the task(s) have been aborted shall be returned to 12085 * the SCSI initiator port other than the completion response for the 12086 * command or task management function action that caused the task(s) to 12087 * be aborted and notification(s) associated with related effects of the 12088 * action (e.g., a reset unit attention condition). 12089 * 12090 * XXX KDM for now, we're setting unit attention for all initiators. 12091 */ 12092static int 12093ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12094{ 12095 union ctl_io *xio; 12096#if 0 12097 uint32_t initindex; 12098#endif 12099 int i; 12100 12101 mtx_lock(&lun->lun_lock); 12102 /* 12103 * Run through the OOA queue and abort each I/O. 12104 */ 12105#if 0 12106 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12107#endif 12108 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12109 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12110 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12111 } 12112 12113 /* 12114 * This version sets unit attention for every 12115 */ 12116#if 0 12117 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12118 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12119 if (initindex == i) 12120 continue; 12121 lun->pending_ua[i] |= ua_type; 12122 } 12123#endif 12124 12125 /* 12126 * A reset (any kind, really) clears reservations established with 12127 * RESERVE/RELEASE. It does not clear reservations established 12128 * with PERSISTENT RESERVE OUT, but we don't support that at the 12129 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12130 * reservations made with the RESERVE/RELEASE commands, because 12131 * those commands are obsolete in SPC-3. 12132 */ 12133 lun->flags &= ~CTL_LUN_RESERVED; 12134 12135 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12136#ifdef CTL_WITH_CA 12137 ctl_clear_mask(lun->have_ca, i); 12138#endif 12139 lun->pending_ua[i] |= ua_type; 12140 } 12141 mtx_unlock(&lun->lun_lock); 12142 12143 return (0); 12144} 12145 12146static void 12147ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12148 int other_sc) 12149{ 12150 union ctl_io *xio; 12151 12152 mtx_assert(&lun->lun_lock, MA_OWNED); 12153 12154 /* 12155 * Run through the OOA queue and attempt to find the given I/O. 12156 * The target port, initiator ID, tag type and tag number have to 12157 * match the values that we got from the initiator. If we have an 12158 * untagged command to abort, simply abort the first untagged command 12159 * we come to. We only allow one untagged command at a time of course. 12160 */ 12161 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12162 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12163 12164 if ((targ_port == UINT32_MAX || 12165 targ_port == xio->io_hdr.nexus.targ_port) && 12166 (init_id == UINT32_MAX || 12167 init_id == xio->io_hdr.nexus.initid.id)) { 12168 if (targ_port != xio->io_hdr.nexus.targ_port || 12169 init_id != xio->io_hdr.nexus.initid.id) 12170 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12171 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12172 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12173 union ctl_ha_msg msg_info; 12174 12175 msg_info.hdr.nexus = xio->io_hdr.nexus; 12176 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12177 msg_info.task.tag_num = xio->scsiio.tag_num; 12178 msg_info.task.tag_type = xio->scsiio.tag_type; 12179 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12180 msg_info.hdr.original_sc = NULL; 12181 msg_info.hdr.serializing_sc = NULL; 12182 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12183 (void *)&msg_info, sizeof(msg_info), 0); 12184 } 12185 } 12186 } 12187} 12188 12189static int 12190ctl_abort_task_set(union ctl_io *io) 12191{ 12192 struct ctl_softc *softc = control_softc; 12193 struct ctl_lun *lun; 12194 uint32_t targ_lun; 12195 12196 /* 12197 * Look up the LUN. 12198 */ 12199 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12200 mtx_lock(&softc->ctl_lock); 12201 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12202 lun = softc->ctl_luns[targ_lun]; 12203 else { 12204 mtx_unlock(&softc->ctl_lock); 12205 return (1); 12206 } 12207 12208 mtx_lock(&lun->lun_lock); 12209 mtx_unlock(&softc->ctl_lock); 12210 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12211 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12212 io->io_hdr.nexus.initid.id, 12213 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12214 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12215 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12216 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12217 } 12218 mtx_unlock(&lun->lun_lock); 12219 return (0); 12220} 12221 12222static int 12223ctl_i_t_nexus_reset(union ctl_io *io) 12224{ 12225 struct ctl_softc *softc = control_softc; 12226 struct ctl_lun *lun; 12227 uint32_t initindex; 12228 12229 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12230 mtx_lock(&softc->ctl_lock); 12231 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12232 mtx_lock(&lun->lun_lock); 12233 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12234 io->io_hdr.nexus.initid.id, 12235 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12236#ifdef CTL_WITH_CA 12237 ctl_clear_mask(lun->have_ca, initindex); 12238#endif 12239 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12240 mtx_unlock(&lun->lun_lock); 12241 } 12242 mtx_unlock(&softc->ctl_lock); 12243 return (0); 12244} 12245 12246static int 12247ctl_abort_task(union ctl_io *io) 12248{ 12249 union ctl_io *xio; 12250 struct ctl_lun *lun; 12251 struct ctl_softc *ctl_softc; 12252#if 0 12253 struct sbuf sb; 12254 char printbuf[128]; 12255#endif 12256 int found; 12257 uint32_t targ_lun; 12258 12259 ctl_softc = control_softc; 12260 found = 0; 12261 12262 /* 12263 * Look up the LUN. 12264 */ 12265 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12266 mtx_lock(&ctl_softc->ctl_lock); 12267 if ((targ_lun < CTL_MAX_LUNS) 12268 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12269 lun = ctl_softc->ctl_luns[targ_lun]; 12270 else { 12271 mtx_unlock(&ctl_softc->ctl_lock); 12272 return (1); 12273 } 12274 12275#if 0 12276 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12277 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12278#endif 12279 12280 mtx_lock(&lun->lun_lock); 12281 mtx_unlock(&ctl_softc->ctl_lock); 12282 /* 12283 * Run through the OOA queue and attempt to find the given I/O. 12284 * The target port, initiator ID, tag type and tag number have to 12285 * match the values that we got from the initiator. If we have an 12286 * untagged command to abort, simply abort the first untagged command 12287 * we come to. We only allow one untagged command at a time of course. 12288 */ 12289#if 0 12290 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12291#endif 12292 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12293 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12294#if 0 12295 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12296 12297 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12298 lun->lun, xio->scsiio.tag_num, 12299 xio->scsiio.tag_type, 12300 (xio->io_hdr.blocked_links.tqe_prev 12301 == NULL) ? "" : " BLOCKED", 12302 (xio->io_hdr.flags & 12303 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12304 (xio->io_hdr.flags & 12305 CTL_FLAG_ABORT) ? " ABORT" : "", 12306 (xio->io_hdr.flags & 12307 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12308 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12309 sbuf_finish(&sb); 12310 printf("%s\n", sbuf_data(&sb)); 12311#endif 12312 12313 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12314 && (xio->io_hdr.nexus.initid.id == 12315 io->io_hdr.nexus.initid.id)) { 12316 /* 12317 * If the abort says that the task is untagged, the 12318 * task in the queue must be untagged. Otherwise, 12319 * we just check to see whether the tag numbers 12320 * match. This is because the QLogic firmware 12321 * doesn't pass back the tag type in an abort 12322 * request. 12323 */ 12324#if 0 12325 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12326 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12327 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12328#endif 12329 /* 12330 * XXX KDM we've got problems with FC, because it 12331 * doesn't send down a tag type with aborts. So we 12332 * can only really go by the tag number... 12333 * This may cause problems with parallel SCSI. 12334 * Need to figure that out!! 12335 */ 12336 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12337 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12338 found = 1; 12339 if ((io->io_hdr.flags & 12340 CTL_FLAG_FROM_OTHER_SC) == 0 && 12341 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12342 union ctl_ha_msg msg_info; 12343 12344 io->io_hdr.flags |= 12345 CTL_FLAG_SENT_2OTHER_SC; 12346 msg_info.hdr.nexus = io->io_hdr.nexus; 12347 msg_info.task.task_action = 12348 CTL_TASK_ABORT_TASK; 12349 msg_info.task.tag_num = 12350 io->taskio.tag_num; 12351 msg_info.task.tag_type = 12352 io->taskio.tag_type; 12353 msg_info.hdr.msg_type = 12354 CTL_MSG_MANAGE_TASKS; 12355 msg_info.hdr.original_sc = NULL; 12356 msg_info.hdr.serializing_sc = NULL; 12357#if 0 12358 printf("Sent Abort to other side\n"); 12359#endif 12360 if (CTL_HA_STATUS_SUCCESS != 12361 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12362 (void *)&msg_info, 12363 sizeof(msg_info), 0)) { 12364 } 12365 } 12366#if 0 12367 printf("ctl_abort_task: found I/O to abort\n"); 12368#endif 12369 break; 12370 } 12371 } 12372 } 12373 mtx_unlock(&lun->lun_lock); 12374 12375 if (found == 0) { 12376 /* 12377 * This isn't really an error. It's entirely possible for 12378 * the abort and command completion to cross on the wire. 12379 * This is more of an informative/diagnostic error. 12380 */ 12381#if 0 12382 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12383 "%d:%d:%d:%d tag %d type %d\n", 12384 io->io_hdr.nexus.initid.id, 12385 io->io_hdr.nexus.targ_port, 12386 io->io_hdr.nexus.targ_target.id, 12387 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12388 io->taskio.tag_type); 12389#endif 12390 } 12391 return (0); 12392} 12393 12394static void 12395ctl_run_task(union ctl_io *io) 12396{ 12397 struct ctl_softc *ctl_softc = control_softc; 12398 int retval = 1; 12399 const char *task_desc; 12400 12401 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12402 12403 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12404 ("ctl_run_task: Unextected io_type %d\n", 12405 io->io_hdr.io_type)); 12406 12407 task_desc = ctl_scsi_task_string(&io->taskio); 12408 if (task_desc != NULL) { 12409#ifdef NEEDTOPORT 12410 csevent_log(CSC_CTL | CSC_SHELF_SW | 12411 CTL_TASK_REPORT, 12412 csevent_LogType_Trace, 12413 csevent_Severity_Information, 12414 csevent_AlertLevel_Green, 12415 csevent_FRU_Firmware, 12416 csevent_FRU_Unknown, 12417 "CTL: received task: %s",task_desc); 12418#endif 12419 } else { 12420#ifdef NEEDTOPORT 12421 csevent_log(CSC_CTL | CSC_SHELF_SW | 12422 CTL_TASK_REPORT, 12423 csevent_LogType_Trace, 12424 csevent_Severity_Information, 12425 csevent_AlertLevel_Green, 12426 csevent_FRU_Firmware, 12427 csevent_FRU_Unknown, 12428 "CTL: received unknown task " 12429 "type: %d (%#x)", 12430 io->taskio.task_action, 12431 io->taskio.task_action); 12432#endif 12433 } 12434 switch (io->taskio.task_action) { 12435 case CTL_TASK_ABORT_TASK: 12436 retval = ctl_abort_task(io); 12437 break; 12438 case CTL_TASK_ABORT_TASK_SET: 12439 case CTL_TASK_CLEAR_TASK_SET: 12440 retval = ctl_abort_task_set(io); 12441 break; 12442 case CTL_TASK_CLEAR_ACA: 12443 break; 12444 case CTL_TASK_I_T_NEXUS_RESET: 12445 retval = ctl_i_t_nexus_reset(io); 12446 break; 12447 case CTL_TASK_LUN_RESET: { 12448 struct ctl_lun *lun; 12449 uint32_t targ_lun; 12450 12451 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12452 mtx_lock(&ctl_softc->ctl_lock); 12453 if ((targ_lun < CTL_MAX_LUNS) 12454 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12455 lun = ctl_softc->ctl_luns[targ_lun]; 12456 else { 12457 mtx_unlock(&ctl_softc->ctl_lock); 12458 retval = 1; 12459 break; 12460 } 12461 12462 if (!(io->io_hdr.flags & 12463 CTL_FLAG_FROM_OTHER_SC)) { 12464 union ctl_ha_msg msg_info; 12465 12466 io->io_hdr.flags |= 12467 CTL_FLAG_SENT_2OTHER_SC; 12468 msg_info.hdr.msg_type = 12469 CTL_MSG_MANAGE_TASKS; 12470 msg_info.hdr.nexus = io->io_hdr.nexus; 12471 msg_info.task.task_action = 12472 CTL_TASK_LUN_RESET; 12473 msg_info.hdr.original_sc = NULL; 12474 msg_info.hdr.serializing_sc = NULL; 12475 if (CTL_HA_STATUS_SUCCESS != 12476 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12477 (void *)&msg_info, 12478 sizeof(msg_info), 0)) { 12479 } 12480 } 12481 12482 retval = ctl_lun_reset(lun, io, 12483 CTL_UA_LUN_RESET); 12484 mtx_unlock(&ctl_softc->ctl_lock); 12485 break; 12486 } 12487 case CTL_TASK_TARGET_RESET: 12488 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12489 break; 12490 case CTL_TASK_BUS_RESET: 12491 retval = ctl_bus_reset(ctl_softc, io); 12492 break; 12493 case CTL_TASK_PORT_LOGIN: 12494 break; 12495 case CTL_TASK_PORT_LOGOUT: 12496 break; 12497 default: 12498 printf("ctl_run_task: got unknown task management event %d\n", 12499 io->taskio.task_action); 12500 break; 12501 } 12502 if (retval == 0) 12503 io->io_hdr.status = CTL_SUCCESS; 12504 else 12505 io->io_hdr.status = CTL_ERROR; 12506 ctl_done(io); 12507} 12508 12509/* 12510 * For HA operation. Handle commands that come in from the other 12511 * controller. 12512 */ 12513static void 12514ctl_handle_isc(union ctl_io *io) 12515{ 12516 int free_io; 12517 struct ctl_lun *lun; 12518 struct ctl_softc *ctl_softc; 12519 uint32_t targ_lun; 12520 12521 ctl_softc = control_softc; 12522 12523 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12524 lun = ctl_softc->ctl_luns[targ_lun]; 12525 12526 switch (io->io_hdr.msg_type) { 12527 case CTL_MSG_SERIALIZE: 12528 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12529 break; 12530 case CTL_MSG_R2R: { 12531 const struct ctl_cmd_entry *entry; 12532 12533 /* 12534 * This is only used in SER_ONLY mode. 12535 */ 12536 free_io = 0; 12537 entry = ctl_get_cmd_entry(&io->scsiio); 12538 mtx_lock(&lun->lun_lock); 12539 if (ctl_scsiio_lun_check(ctl_softc, lun, 12540 entry, (struct ctl_scsiio *)io) != 0) { 12541 mtx_unlock(&lun->lun_lock); 12542 ctl_done(io); 12543 break; 12544 } 12545 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12546 mtx_unlock(&lun->lun_lock); 12547 ctl_enqueue_rtr(io); 12548 break; 12549 } 12550 case CTL_MSG_FINISH_IO: 12551 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12552 free_io = 0; 12553 ctl_done(io); 12554 } else { 12555 free_io = 1; 12556 mtx_lock(&lun->lun_lock); 12557 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12558 ooa_links); 12559 ctl_check_blocked(lun); 12560 mtx_unlock(&lun->lun_lock); 12561 } 12562 break; 12563 case CTL_MSG_PERS_ACTION: 12564 ctl_hndl_per_res_out_on_other_sc( 12565 (union ctl_ha_msg *)&io->presio.pr_msg); 12566 free_io = 1; 12567 break; 12568 case CTL_MSG_BAD_JUJU: 12569 free_io = 0; 12570 ctl_done(io); 12571 break; 12572 case CTL_MSG_DATAMOVE: 12573 /* Only used in XFER mode */ 12574 free_io = 0; 12575 ctl_datamove_remote(io); 12576 break; 12577 case CTL_MSG_DATAMOVE_DONE: 12578 /* Only used in XFER mode */ 12579 free_io = 0; 12580 io->scsiio.be_move_done(io); 12581 break; 12582 default: 12583 free_io = 1; 12584 printf("%s: Invalid message type %d\n", 12585 __func__, io->io_hdr.msg_type); 12586 break; 12587 } 12588 if (free_io) 12589 ctl_free_io(io); 12590 12591} 12592 12593 12594/* 12595 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12596 * there is no match. 12597 */ 12598static ctl_lun_error_pattern 12599ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12600{ 12601 const struct ctl_cmd_entry *entry; 12602 ctl_lun_error_pattern filtered_pattern, pattern; 12603 12604 pattern = desc->error_pattern; 12605 12606 /* 12607 * XXX KDM we need more data passed into this function to match a 12608 * custom pattern, and we actually need to implement custom pattern 12609 * matching. 12610 */ 12611 if (pattern & CTL_LUN_PAT_CMD) 12612 return (CTL_LUN_PAT_CMD); 12613 12614 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12615 return (CTL_LUN_PAT_ANY); 12616 12617 entry = ctl_get_cmd_entry(ctsio); 12618 12619 filtered_pattern = entry->pattern & pattern; 12620 12621 /* 12622 * If the user requested specific flags in the pattern (e.g. 12623 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12624 * flags. 12625 * 12626 * If the user did not specify any flags, it doesn't matter whether 12627 * or not the command supports the flags. 12628 */ 12629 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12630 (pattern & ~CTL_LUN_PAT_MASK)) 12631 return (CTL_LUN_PAT_NONE); 12632 12633 /* 12634 * If the user asked for a range check, see if the requested LBA 12635 * range overlaps with this command's LBA range. 12636 */ 12637 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12638 uint64_t lba1; 12639 uint64_t len1; 12640 ctl_action action; 12641 int retval; 12642 12643 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12644 if (retval != 0) 12645 return (CTL_LUN_PAT_NONE); 12646 12647 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12648 desc->lba_range.len); 12649 /* 12650 * A "pass" means that the LBA ranges don't overlap, so 12651 * this doesn't match the user's range criteria. 12652 */ 12653 if (action == CTL_ACTION_PASS) 12654 return (CTL_LUN_PAT_NONE); 12655 } 12656 12657 return (filtered_pattern); 12658} 12659 12660static void 12661ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12662{ 12663 struct ctl_error_desc *desc, *desc2; 12664 12665 mtx_assert(&lun->lun_lock, MA_OWNED); 12666 12667 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12668 ctl_lun_error_pattern pattern; 12669 /* 12670 * Check to see whether this particular command matches 12671 * the pattern in the descriptor. 12672 */ 12673 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12674 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12675 continue; 12676 12677 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12678 case CTL_LUN_INJ_ABORTED: 12679 ctl_set_aborted(&io->scsiio); 12680 break; 12681 case CTL_LUN_INJ_MEDIUM_ERR: 12682 ctl_set_medium_error(&io->scsiio); 12683 break; 12684 case CTL_LUN_INJ_UA: 12685 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12686 * OCCURRED */ 12687 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12688 break; 12689 case CTL_LUN_INJ_CUSTOM: 12690 /* 12691 * We're assuming the user knows what he is doing. 12692 * Just copy the sense information without doing 12693 * checks. 12694 */ 12695 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12696 ctl_min(sizeof(desc->custom_sense), 12697 sizeof(io->scsiio.sense_data))); 12698 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12699 io->scsiio.sense_len = SSD_FULL_SIZE; 12700 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12701 break; 12702 case CTL_LUN_INJ_NONE: 12703 default: 12704 /* 12705 * If this is an error injection type we don't know 12706 * about, clear the continuous flag (if it is set) 12707 * so it will get deleted below. 12708 */ 12709 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12710 break; 12711 } 12712 /* 12713 * By default, each error injection action is a one-shot 12714 */ 12715 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12716 continue; 12717 12718 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12719 12720 free(desc, M_CTL); 12721 } 12722} 12723 12724#ifdef CTL_IO_DELAY 12725static void 12726ctl_datamove_timer_wakeup(void *arg) 12727{ 12728 union ctl_io *io; 12729 12730 io = (union ctl_io *)arg; 12731 12732 ctl_datamove(io); 12733} 12734#endif /* CTL_IO_DELAY */ 12735 12736void 12737ctl_datamove(union ctl_io *io) 12738{ 12739 void (*fe_datamove)(union ctl_io *io); 12740 12741 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12742 12743 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12744 12745#ifdef CTL_TIME_IO 12746 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12747 char str[256]; 12748 char path_str[64]; 12749 struct sbuf sb; 12750 12751 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12752 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12753 12754 sbuf_cat(&sb, path_str); 12755 switch (io->io_hdr.io_type) { 12756 case CTL_IO_SCSI: 12757 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12758 sbuf_printf(&sb, "\n"); 12759 sbuf_cat(&sb, path_str); 12760 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12761 io->scsiio.tag_num, io->scsiio.tag_type); 12762 break; 12763 case CTL_IO_TASK: 12764 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12765 "Tag Type: %d\n", io->taskio.task_action, 12766 io->taskio.tag_num, io->taskio.tag_type); 12767 break; 12768 default: 12769 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12770 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12771 break; 12772 } 12773 sbuf_cat(&sb, path_str); 12774 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12775 (intmax_t)time_uptime - io->io_hdr.start_time); 12776 sbuf_finish(&sb); 12777 printf("%s", sbuf_data(&sb)); 12778 } 12779#endif /* CTL_TIME_IO */ 12780 12781#ifdef CTL_IO_DELAY 12782 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12783 struct ctl_lun *lun; 12784 12785 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12786 12787 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12788 } else { 12789 struct ctl_lun *lun; 12790 12791 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12792 if ((lun != NULL) 12793 && (lun->delay_info.datamove_delay > 0)) { 12794 struct callout *callout; 12795 12796 callout = (struct callout *)&io->io_hdr.timer_bytes; 12797 callout_init(callout, /*mpsafe*/ 1); 12798 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12799 callout_reset(callout, 12800 lun->delay_info.datamove_delay * hz, 12801 ctl_datamove_timer_wakeup, io); 12802 if (lun->delay_info.datamove_type == 12803 CTL_DELAY_TYPE_ONESHOT) 12804 lun->delay_info.datamove_delay = 0; 12805 return; 12806 } 12807 } 12808#endif 12809 12810 /* 12811 * This command has been aborted. Set the port status, so we fail 12812 * the data move. 12813 */ 12814 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12815 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12816 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12817 io->io_hdr.nexus.targ_port, 12818 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12819 io->io_hdr.nexus.targ_lun); 12820 io->io_hdr.port_status = 31337; 12821 /* 12822 * Note that the backend, in this case, will get the 12823 * callback in its context. In other cases it may get 12824 * called in the frontend's interrupt thread context. 12825 */ 12826 io->scsiio.be_move_done(io); 12827 return; 12828 } 12829 12830 /* 12831 * If we're in XFER mode and this I/O is from the other shelf 12832 * controller, we need to send the DMA to the other side to 12833 * actually transfer the data to/from the host. In serialize only 12834 * mode the transfer happens below CTL and ctl_datamove() is only 12835 * called on the machine that originally received the I/O. 12836 */ 12837 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12838 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12839 union ctl_ha_msg msg; 12840 uint32_t sg_entries_sent; 12841 int do_sg_copy; 12842 int i; 12843 12844 memset(&msg, 0, sizeof(msg)); 12845 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12846 msg.hdr.original_sc = io->io_hdr.original_sc; 12847 msg.hdr.serializing_sc = io; 12848 msg.hdr.nexus = io->io_hdr.nexus; 12849 msg.dt.flags = io->io_hdr.flags; 12850 /* 12851 * We convert everything into a S/G list here. We can't 12852 * pass by reference, only by value between controllers. 12853 * So we can't pass a pointer to the S/G list, only as many 12854 * S/G entries as we can fit in here. If it's possible for 12855 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12856 * then we need to break this up into multiple transfers. 12857 */ 12858 if (io->scsiio.kern_sg_entries == 0) { 12859 msg.dt.kern_sg_entries = 1; 12860 /* 12861 * If this is in cached memory, flush the cache 12862 * before we send the DMA request to the other 12863 * controller. We want to do this in either the 12864 * read or the write case. The read case is 12865 * straightforward. In the write case, we want to 12866 * make sure nothing is in the local cache that 12867 * could overwrite the DMAed data. 12868 */ 12869 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12870 /* 12871 * XXX KDM use bus_dmamap_sync() here. 12872 */ 12873 } 12874 12875 /* 12876 * Convert to a physical address if this is a 12877 * virtual address. 12878 */ 12879 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12880 msg.dt.sg_list[0].addr = 12881 io->scsiio.kern_data_ptr; 12882 } else { 12883 /* 12884 * XXX KDM use busdma here! 12885 */ 12886#if 0 12887 msg.dt.sg_list[0].addr = (void *) 12888 vtophys(io->scsiio.kern_data_ptr); 12889#endif 12890 } 12891 12892 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12893 do_sg_copy = 0; 12894 } else { 12895 struct ctl_sg_entry *sgl; 12896 12897 do_sg_copy = 1; 12898 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12899 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12900 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12901 /* 12902 * XXX KDM use bus_dmamap_sync() here. 12903 */ 12904 } 12905 } 12906 12907 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12908 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12909 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12910 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12911 msg.dt.sg_sequence = 0; 12912 12913 /* 12914 * Loop until we've sent all of the S/G entries. On the 12915 * other end, we'll recompose these S/G entries into one 12916 * contiguous list before passing it to the 12917 */ 12918 for (sg_entries_sent = 0; sg_entries_sent < 12919 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12920 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12921 sizeof(msg.dt.sg_list[0])), 12922 msg.dt.kern_sg_entries - sg_entries_sent); 12923 12924 if (do_sg_copy != 0) { 12925 struct ctl_sg_entry *sgl; 12926 int j; 12927 12928 sgl = (struct ctl_sg_entry *) 12929 io->scsiio.kern_data_ptr; 12930 /* 12931 * If this is in cached memory, flush the cache 12932 * before we send the DMA request to the other 12933 * controller. We want to do this in either 12934 * the * read or the write case. The read 12935 * case is straightforward. In the write 12936 * case, we want to make sure nothing is 12937 * in the local cache that could overwrite 12938 * the DMAed data. 12939 */ 12940 12941 for (i = sg_entries_sent, j = 0; 12942 i < msg.dt.cur_sg_entries; i++, j++) { 12943 if ((io->io_hdr.flags & 12944 CTL_FLAG_NO_DATASYNC) == 0) { 12945 /* 12946 * XXX KDM use bus_dmamap_sync() 12947 */ 12948 } 12949 if ((io->io_hdr.flags & 12950 CTL_FLAG_BUS_ADDR) == 0) { 12951 /* 12952 * XXX KDM use busdma. 12953 */ 12954#if 0 12955 msg.dt.sg_list[j].addr =(void *) 12956 vtophys(sgl[i].addr); 12957#endif 12958 } else { 12959 msg.dt.sg_list[j].addr = 12960 sgl[i].addr; 12961 } 12962 msg.dt.sg_list[j].len = sgl[i].len; 12963 } 12964 } 12965 12966 sg_entries_sent += msg.dt.cur_sg_entries; 12967 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12968 msg.dt.sg_last = 1; 12969 else 12970 msg.dt.sg_last = 0; 12971 12972 /* 12973 * XXX KDM drop and reacquire the lock here? 12974 */ 12975 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12976 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12977 /* 12978 * XXX do something here. 12979 */ 12980 } 12981 12982 msg.dt.sent_sg_entries = sg_entries_sent; 12983 } 12984 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12985 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12986 ctl_failover_io(io, /*have_lock*/ 0); 12987 12988 } else { 12989 12990 /* 12991 * Lookup the fe_datamove() function for this particular 12992 * front end. 12993 */ 12994 fe_datamove = 12995 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12996 12997 fe_datamove(io); 12998 } 12999} 13000 13001static void 13002ctl_send_datamove_done(union ctl_io *io, int have_lock) 13003{ 13004 union ctl_ha_msg msg; 13005 int isc_status; 13006 13007 memset(&msg, 0, sizeof(msg)); 13008 13009 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 13010 msg.hdr.original_sc = io; 13011 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13012 msg.hdr.nexus = io->io_hdr.nexus; 13013 msg.hdr.status = io->io_hdr.status; 13014 msg.scsi.tag_num = io->scsiio.tag_num; 13015 msg.scsi.tag_type = io->scsiio.tag_type; 13016 msg.scsi.scsi_status = io->scsiio.scsi_status; 13017 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13018 sizeof(io->scsiio.sense_data)); 13019 msg.scsi.sense_len = io->scsiio.sense_len; 13020 msg.scsi.sense_residual = io->scsiio.sense_residual; 13021 msg.scsi.fetd_status = io->io_hdr.port_status; 13022 msg.scsi.residual = io->scsiio.residual; 13023 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13024 13025 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13026 ctl_failover_io(io, /*have_lock*/ have_lock); 13027 return; 13028 } 13029 13030 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 13031 if (isc_status > CTL_HA_STATUS_SUCCESS) { 13032 /* XXX do something if this fails */ 13033 } 13034 13035} 13036 13037/* 13038 * The DMA to the remote side is done, now we need to tell the other side 13039 * we're done so it can continue with its data movement. 13040 */ 13041static void 13042ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 13043{ 13044 union ctl_io *io; 13045 13046 io = rq->context; 13047 13048 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13049 printf("%s: ISC DMA write failed with error %d", __func__, 13050 rq->ret); 13051 ctl_set_internal_failure(&io->scsiio, 13052 /*sks_valid*/ 1, 13053 /*retry_count*/ rq->ret); 13054 } 13055 13056 ctl_dt_req_free(rq); 13057 13058 /* 13059 * In this case, we had to malloc the memory locally. Free it. 13060 */ 13061 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13062 int i; 13063 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13064 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13065 } 13066 /* 13067 * The data is in local and remote memory, so now we need to send 13068 * status (good or back) back to the other side. 13069 */ 13070 ctl_send_datamove_done(io, /*have_lock*/ 0); 13071} 13072 13073/* 13074 * We've moved the data from the host/controller into local memory. Now we 13075 * need to push it over to the remote controller's memory. 13076 */ 13077static int 13078ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13079{ 13080 int retval; 13081 13082 retval = 0; 13083 13084 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13085 ctl_datamove_remote_write_cb); 13086 13087 return (retval); 13088} 13089 13090static void 13091ctl_datamove_remote_write(union ctl_io *io) 13092{ 13093 int retval; 13094 void (*fe_datamove)(union ctl_io *io); 13095 13096 /* 13097 * - Get the data from the host/HBA into local memory. 13098 * - DMA memory from the local controller to the remote controller. 13099 * - Send status back to the remote controller. 13100 */ 13101 13102 retval = ctl_datamove_remote_sgl_setup(io); 13103 if (retval != 0) 13104 return; 13105 13106 /* Switch the pointer over so the FETD knows what to do */ 13107 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13108 13109 /* 13110 * Use a custom move done callback, since we need to send completion 13111 * back to the other controller, not to the backend on this side. 13112 */ 13113 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13114 13115 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13116 13117 fe_datamove(io); 13118 13119 return; 13120 13121} 13122 13123static int 13124ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13125{ 13126#if 0 13127 char str[256]; 13128 char path_str[64]; 13129 struct sbuf sb; 13130#endif 13131 13132 /* 13133 * In this case, we had to malloc the memory locally. Free it. 13134 */ 13135 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13136 int i; 13137 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13138 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13139 } 13140 13141#if 0 13142 scsi_path_string(io, path_str, sizeof(path_str)); 13143 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13144 sbuf_cat(&sb, path_str); 13145 scsi_command_string(&io->scsiio, NULL, &sb); 13146 sbuf_printf(&sb, "\n"); 13147 sbuf_cat(&sb, path_str); 13148 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13149 io->scsiio.tag_num, io->scsiio.tag_type); 13150 sbuf_cat(&sb, path_str); 13151 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13152 io->io_hdr.flags, io->io_hdr.status); 13153 sbuf_finish(&sb); 13154 printk("%s", sbuf_data(&sb)); 13155#endif 13156 13157 13158 /* 13159 * The read is done, now we need to send status (good or bad) back 13160 * to the other side. 13161 */ 13162 ctl_send_datamove_done(io, /*have_lock*/ 0); 13163 13164 return (0); 13165} 13166 13167static void 13168ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13169{ 13170 union ctl_io *io; 13171 void (*fe_datamove)(union ctl_io *io); 13172 13173 io = rq->context; 13174 13175 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13176 printf("%s: ISC DMA read failed with error %d", __func__, 13177 rq->ret); 13178 ctl_set_internal_failure(&io->scsiio, 13179 /*sks_valid*/ 1, 13180 /*retry_count*/ rq->ret); 13181 } 13182 13183 ctl_dt_req_free(rq); 13184 13185 /* Switch the pointer over so the FETD knows what to do */ 13186 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13187 13188 /* 13189 * Use a custom move done callback, since we need to send completion 13190 * back to the other controller, not to the backend on this side. 13191 */ 13192 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13193 13194 /* XXX KDM add checks like the ones in ctl_datamove? */ 13195 13196 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13197 13198 fe_datamove(io); 13199} 13200 13201static int 13202ctl_datamove_remote_sgl_setup(union ctl_io *io) 13203{ 13204 struct ctl_sg_entry *local_sglist, *remote_sglist; 13205 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13206 struct ctl_softc *softc; 13207 int retval; 13208 int i; 13209 13210 retval = 0; 13211 softc = control_softc; 13212 13213 local_sglist = io->io_hdr.local_sglist; 13214 local_dma_sglist = io->io_hdr.local_dma_sglist; 13215 remote_sglist = io->io_hdr.remote_sglist; 13216 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13217 13218 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13219 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13220 local_sglist[i].len = remote_sglist[i].len; 13221 13222 /* 13223 * XXX Detect the situation where the RS-level I/O 13224 * redirector on the other side has already read the 13225 * data off of the AOR RS on this side, and 13226 * transferred it to remote (mirror) memory on the 13227 * other side. Since we already have the data in 13228 * memory here, we just need to use it. 13229 * 13230 * XXX KDM this can probably be removed once we 13231 * get the cache device code in and take the 13232 * current AOR implementation out. 13233 */ 13234#ifdef NEEDTOPORT 13235 if ((remote_sglist[i].addr >= 13236 (void *)vtophys(softc->mirr->addr)) 13237 && (remote_sglist[i].addr < 13238 ((void *)vtophys(softc->mirr->addr) + 13239 CacheMirrorOffset))) { 13240 local_sglist[i].addr = remote_sglist[i].addr - 13241 CacheMirrorOffset; 13242 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13243 CTL_FLAG_DATA_IN) 13244 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13245 } else { 13246 local_sglist[i].addr = remote_sglist[i].addr + 13247 CacheMirrorOffset; 13248 } 13249#endif 13250#if 0 13251 printf("%s: local %p, remote %p, len %d\n", 13252 __func__, local_sglist[i].addr, 13253 remote_sglist[i].addr, local_sglist[i].len); 13254#endif 13255 } 13256 } else { 13257 uint32_t len_to_go; 13258 13259 /* 13260 * In this case, we don't have automatically allocated 13261 * memory for this I/O on this controller. This typically 13262 * happens with internal CTL I/O -- e.g. inquiry, mode 13263 * sense, etc. Anything coming from RAIDCore will have 13264 * a mirror area available. 13265 */ 13266 len_to_go = io->scsiio.kern_data_len; 13267 13268 /* 13269 * Clear the no datasync flag, we have to use malloced 13270 * buffers. 13271 */ 13272 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13273 13274 /* 13275 * The difficult thing here is that the size of the various 13276 * S/G segments may be different than the size from the 13277 * remote controller. That'll make it harder when DMAing 13278 * the data back to the other side. 13279 */ 13280 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13281 sizeof(io->io_hdr.remote_sglist[0])) && 13282 (len_to_go > 0); i++) { 13283 local_sglist[i].len = ctl_min(len_to_go, 131072); 13284 CTL_SIZE_8B(local_dma_sglist[i].len, 13285 local_sglist[i].len); 13286 local_sglist[i].addr = 13287 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13288 13289 local_dma_sglist[i].addr = local_sglist[i].addr; 13290 13291 if (local_sglist[i].addr == NULL) { 13292 int j; 13293 13294 printf("malloc failed for %zd bytes!", 13295 local_dma_sglist[i].len); 13296 for (j = 0; j < i; j++) { 13297 free(local_sglist[j].addr, M_CTL); 13298 } 13299 ctl_set_internal_failure(&io->scsiio, 13300 /*sks_valid*/ 1, 13301 /*retry_count*/ 4857); 13302 retval = 1; 13303 goto bailout_error; 13304 13305 } 13306 /* XXX KDM do we need a sync here? */ 13307 13308 len_to_go -= local_sglist[i].len; 13309 } 13310 /* 13311 * Reset the number of S/G entries accordingly. The 13312 * original number of S/G entries is available in 13313 * rem_sg_entries. 13314 */ 13315 io->scsiio.kern_sg_entries = i; 13316 13317#if 0 13318 printf("%s: kern_sg_entries = %d\n", __func__, 13319 io->scsiio.kern_sg_entries); 13320 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13321 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13322 local_sglist[i].addr, local_sglist[i].len, 13323 local_dma_sglist[i].len); 13324#endif 13325 } 13326 13327 13328 return (retval); 13329 13330bailout_error: 13331 13332 ctl_send_datamove_done(io, /*have_lock*/ 0); 13333 13334 return (retval); 13335} 13336 13337static int 13338ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13339 ctl_ha_dt_cb callback) 13340{ 13341 struct ctl_ha_dt_req *rq; 13342 struct ctl_sg_entry *remote_sglist, *local_sglist; 13343 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13344 uint32_t local_used, remote_used, total_used; 13345 int retval; 13346 int i, j; 13347 13348 retval = 0; 13349 13350 rq = ctl_dt_req_alloc(); 13351 13352 /* 13353 * If we failed to allocate the request, and if the DMA didn't fail 13354 * anyway, set busy status. This is just a resource allocation 13355 * failure. 13356 */ 13357 if ((rq == NULL) 13358 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13359 ctl_set_busy(&io->scsiio); 13360 13361 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13362 13363 if (rq != NULL) 13364 ctl_dt_req_free(rq); 13365 13366 /* 13367 * The data move failed. We need to return status back 13368 * to the other controller. No point in trying to DMA 13369 * data to the remote controller. 13370 */ 13371 13372 ctl_send_datamove_done(io, /*have_lock*/ 0); 13373 13374 retval = 1; 13375 13376 goto bailout; 13377 } 13378 13379 local_sglist = io->io_hdr.local_sglist; 13380 local_dma_sglist = io->io_hdr.local_dma_sglist; 13381 remote_sglist = io->io_hdr.remote_sglist; 13382 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13383 local_used = 0; 13384 remote_used = 0; 13385 total_used = 0; 13386 13387 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13388 rq->ret = CTL_HA_STATUS_SUCCESS; 13389 rq->context = io; 13390 callback(rq); 13391 goto bailout; 13392 } 13393 13394 /* 13395 * Pull/push the data over the wire from/to the other controller. 13396 * This takes into account the possibility that the local and 13397 * remote sglists may not be identical in terms of the size of 13398 * the elements and the number of elements. 13399 * 13400 * One fundamental assumption here is that the length allocated for 13401 * both the local and remote sglists is identical. Otherwise, we've 13402 * essentially got a coding error of some sort. 13403 */ 13404 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13405 int isc_ret; 13406 uint32_t cur_len, dma_length; 13407 uint8_t *tmp_ptr; 13408 13409 rq->id = CTL_HA_DATA_CTL; 13410 rq->command = command; 13411 rq->context = io; 13412 13413 /* 13414 * Both pointers should be aligned. But it is possible 13415 * that the allocation length is not. They should both 13416 * also have enough slack left over at the end, though, 13417 * to round up to the next 8 byte boundary. 13418 */ 13419 cur_len = ctl_min(local_sglist[i].len - local_used, 13420 remote_sglist[j].len - remote_used); 13421 13422 /* 13423 * In this case, we have a size issue and need to decrease 13424 * the size, except in the case where we actually have less 13425 * than 8 bytes left. In that case, we need to increase 13426 * the DMA length to get the last bit. 13427 */ 13428 if ((cur_len & 0x7) != 0) { 13429 if (cur_len > 0x7) { 13430 cur_len = cur_len - (cur_len & 0x7); 13431 dma_length = cur_len; 13432 } else { 13433 CTL_SIZE_8B(dma_length, cur_len); 13434 } 13435 13436 } else 13437 dma_length = cur_len; 13438 13439 /* 13440 * If we had to allocate memory for this I/O, instead of using 13441 * the non-cached mirror memory, we'll need to flush the cache 13442 * before trying to DMA to the other controller. 13443 * 13444 * We could end up doing this multiple times for the same 13445 * segment if we have a larger local segment than remote 13446 * segment. That shouldn't be an issue. 13447 */ 13448 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13449 /* 13450 * XXX KDM use bus_dmamap_sync() here. 13451 */ 13452 } 13453 13454 rq->size = dma_length; 13455 13456 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13457 tmp_ptr += local_used; 13458 13459 /* Use physical addresses when talking to ISC hardware */ 13460 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13461 /* XXX KDM use busdma */ 13462#if 0 13463 rq->local = vtophys(tmp_ptr); 13464#endif 13465 } else 13466 rq->local = tmp_ptr; 13467 13468 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13469 tmp_ptr += remote_used; 13470 rq->remote = tmp_ptr; 13471 13472 rq->callback = NULL; 13473 13474 local_used += cur_len; 13475 if (local_used >= local_sglist[i].len) { 13476 i++; 13477 local_used = 0; 13478 } 13479 13480 remote_used += cur_len; 13481 if (remote_used >= remote_sglist[j].len) { 13482 j++; 13483 remote_used = 0; 13484 } 13485 total_used += cur_len; 13486 13487 if (total_used >= io->scsiio.kern_data_len) 13488 rq->callback = callback; 13489 13490 if ((rq->size & 0x7) != 0) { 13491 printf("%s: warning: size %d is not on 8b boundary\n", 13492 __func__, rq->size); 13493 } 13494 if (((uintptr_t)rq->local & 0x7) != 0) { 13495 printf("%s: warning: local %p not on 8b boundary\n", 13496 __func__, rq->local); 13497 } 13498 if (((uintptr_t)rq->remote & 0x7) != 0) { 13499 printf("%s: warning: remote %p not on 8b boundary\n", 13500 __func__, rq->local); 13501 } 13502#if 0 13503 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13504 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13505 rq->local, rq->remote, rq->size); 13506#endif 13507 13508 isc_ret = ctl_dt_single(rq); 13509 if (isc_ret == CTL_HA_STATUS_WAIT) 13510 continue; 13511 13512 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13513 rq->ret = CTL_HA_STATUS_SUCCESS; 13514 } else { 13515 rq->ret = isc_ret; 13516 } 13517 callback(rq); 13518 goto bailout; 13519 } 13520 13521bailout: 13522 return (retval); 13523 13524} 13525 13526static void 13527ctl_datamove_remote_read(union ctl_io *io) 13528{ 13529 int retval; 13530 int i; 13531 13532 /* 13533 * This will send an error to the other controller in the case of a 13534 * failure. 13535 */ 13536 retval = ctl_datamove_remote_sgl_setup(io); 13537 if (retval != 0) 13538 return; 13539 13540 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13541 ctl_datamove_remote_read_cb); 13542 if ((retval != 0) 13543 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13544 /* 13545 * Make sure we free memory if there was an error.. The 13546 * ctl_datamove_remote_xfer() function will send the 13547 * datamove done message, or call the callback with an 13548 * error if there is a problem. 13549 */ 13550 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13551 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13552 } 13553 13554 return; 13555} 13556 13557/* 13558 * Process a datamove request from the other controller. This is used for 13559 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13560 * first. Once that is complete, the data gets DMAed into the remote 13561 * controller's memory. For reads, we DMA from the remote controller's 13562 * memory into our memory first, and then move it out to the FETD. 13563 */ 13564static void 13565ctl_datamove_remote(union ctl_io *io) 13566{ 13567 struct ctl_softc *softc; 13568 13569 softc = control_softc; 13570 13571 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13572 13573 /* 13574 * Note that we look for an aborted I/O here, but don't do some of 13575 * the other checks that ctl_datamove() normally does. 13576 * We don't need to run the datamove delay code, since that should 13577 * have been done if need be on the other controller. 13578 */ 13579 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13580 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13581 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13582 io->io_hdr.nexus.targ_port, 13583 io->io_hdr.nexus.targ_target.id, 13584 io->io_hdr.nexus.targ_lun); 13585 io->io_hdr.port_status = 31338; 13586 ctl_send_datamove_done(io, /*have_lock*/ 0); 13587 return; 13588 } 13589 13590 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13591 ctl_datamove_remote_write(io); 13592 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13593 ctl_datamove_remote_read(io); 13594 } else { 13595 union ctl_ha_msg msg; 13596 struct scsi_sense_data *sense; 13597 uint8_t sks[3]; 13598 int retry_count; 13599 13600 memset(&msg, 0, sizeof(msg)); 13601 13602 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13603 msg.hdr.status = CTL_SCSI_ERROR; 13604 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13605 13606 retry_count = 4243; 13607 13608 sense = &msg.scsi.sense_data; 13609 sks[0] = SSD_SCS_VALID; 13610 sks[1] = (retry_count >> 8) & 0xff; 13611 sks[2] = retry_count & 0xff; 13612 13613 /* "Internal target failure" */ 13614 scsi_set_sense_data(sense, 13615 /*sense_format*/ SSD_TYPE_NONE, 13616 /*current_error*/ 1, 13617 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13618 /*asc*/ 0x44, 13619 /*ascq*/ 0x00, 13620 /*type*/ SSD_ELEM_SKS, 13621 /*size*/ sizeof(sks), 13622 /*data*/ sks, 13623 SSD_ELEM_NONE); 13624 13625 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13626 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13627 ctl_failover_io(io, /*have_lock*/ 1); 13628 return; 13629 } 13630 13631 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13632 CTL_HA_STATUS_SUCCESS) { 13633 /* XXX KDM what to do if this fails? */ 13634 } 13635 return; 13636 } 13637 13638} 13639 13640static int 13641ctl_process_done(union ctl_io *io) 13642{ 13643 struct ctl_lun *lun; 13644 struct ctl_softc *ctl_softc; 13645 void (*fe_done)(union ctl_io *io); 13646 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13647 13648 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13649 13650 fe_done = 13651 control_softc->ctl_ports[targ_port]->fe_done; 13652 13653#ifdef CTL_TIME_IO 13654 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13655 char str[256]; 13656 char path_str[64]; 13657 struct sbuf sb; 13658 13659 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13660 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13661 13662 sbuf_cat(&sb, path_str); 13663 switch (io->io_hdr.io_type) { 13664 case CTL_IO_SCSI: 13665 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13666 sbuf_printf(&sb, "\n"); 13667 sbuf_cat(&sb, path_str); 13668 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13669 io->scsiio.tag_num, io->scsiio.tag_type); 13670 break; 13671 case CTL_IO_TASK: 13672 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13673 "Tag Type: %d\n", io->taskio.task_action, 13674 io->taskio.tag_num, io->taskio.tag_type); 13675 break; 13676 default: 13677 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13678 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13679 break; 13680 } 13681 sbuf_cat(&sb, path_str); 13682 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13683 (intmax_t)time_uptime - io->io_hdr.start_time); 13684 sbuf_finish(&sb); 13685 printf("%s", sbuf_data(&sb)); 13686 } 13687#endif /* CTL_TIME_IO */ 13688 13689 switch (io->io_hdr.io_type) { 13690 case CTL_IO_SCSI: 13691 break; 13692 case CTL_IO_TASK: 13693 if (bootverbose || verbose > 0) 13694 ctl_io_error_print(io, NULL); 13695 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13696 ctl_free_io(io); 13697 else 13698 fe_done(io); 13699 return (CTL_RETVAL_COMPLETE); 13700 break; 13701 default: 13702 printf("ctl_process_done: invalid io type %d\n", 13703 io->io_hdr.io_type); 13704 panic("ctl_process_done: invalid io type %d\n", 13705 io->io_hdr.io_type); 13706 break; /* NOTREACHED */ 13707 } 13708 13709 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13710 if (lun == NULL) { 13711 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13712 io->io_hdr.nexus.targ_mapped_lun)); 13713 fe_done(io); 13714 goto bailout; 13715 } 13716 ctl_softc = lun->ctl_softc; 13717 13718 mtx_lock(&lun->lun_lock); 13719 13720 /* 13721 * Check to see if we have any errors to inject here. We only 13722 * inject errors for commands that don't already have errors set. 13723 */ 13724 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13725 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13726 ctl_inject_error(lun, io); 13727 13728 /* 13729 * XXX KDM how do we treat commands that aren't completed 13730 * successfully? 13731 * 13732 * XXX KDM should we also track I/O latency? 13733 */ 13734 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13735 io->io_hdr.io_type == CTL_IO_SCSI) { 13736#ifdef CTL_TIME_IO 13737 struct bintime cur_bt; 13738#endif 13739 int type; 13740 13741 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13742 CTL_FLAG_DATA_IN) 13743 type = CTL_STATS_READ; 13744 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13745 CTL_FLAG_DATA_OUT) 13746 type = CTL_STATS_WRITE; 13747 else 13748 type = CTL_STATS_NO_IO; 13749 13750 lun->stats.ports[targ_port].bytes[type] += 13751 io->scsiio.kern_total_len; 13752 lun->stats.ports[targ_port].operations[type]++; 13753#ifdef CTL_TIME_IO 13754 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13755 &io->io_hdr.dma_bt); 13756 lun->stats.ports[targ_port].num_dmas[type] += 13757 io->io_hdr.num_dmas; 13758 getbintime(&cur_bt); 13759 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13760 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13761#endif 13762 } 13763 13764 /* 13765 * Remove this from the OOA queue. 13766 */ 13767 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13768 13769 /* 13770 * Run through the blocked queue on this LUN and see if anything 13771 * has become unblocked, now that this transaction is done. 13772 */ 13773 ctl_check_blocked(lun); 13774 13775 /* 13776 * If the LUN has been invalidated, free it if there is nothing 13777 * left on its OOA queue. 13778 */ 13779 if ((lun->flags & CTL_LUN_INVALID) 13780 && TAILQ_EMPTY(&lun->ooa_queue)) { 13781 mtx_unlock(&lun->lun_lock); 13782 mtx_lock(&ctl_softc->ctl_lock); 13783 ctl_free_lun(lun); 13784 mtx_unlock(&ctl_softc->ctl_lock); 13785 } else 13786 mtx_unlock(&lun->lun_lock); 13787 13788 /* 13789 * If this command has been aborted, make sure we set the status 13790 * properly. The FETD is responsible for freeing the I/O and doing 13791 * whatever it needs to do to clean up its state. 13792 */ 13793 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13794 ctl_set_task_aborted(&io->scsiio); 13795 13796 /* 13797 * We print out status for every task management command. For SCSI 13798 * commands, we filter out any unit attention errors; they happen 13799 * on every boot, and would clutter up the log. Note: task 13800 * management commands aren't printed here, they are printed above, 13801 * since they should never even make it down here. 13802 */ 13803 switch (io->io_hdr.io_type) { 13804 case CTL_IO_SCSI: { 13805 int error_code, sense_key, asc, ascq; 13806 13807 sense_key = 0; 13808 13809 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13810 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13811 /* 13812 * Since this is just for printing, no need to 13813 * show errors here. 13814 */ 13815 scsi_extract_sense_len(&io->scsiio.sense_data, 13816 io->scsiio.sense_len, 13817 &error_code, 13818 &sense_key, 13819 &asc, 13820 &ascq, 13821 /*show_errors*/ 0); 13822 } 13823 13824 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13825 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13826 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13827 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13828 13829 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13830 ctl_softc->skipped_prints++; 13831 } else { 13832 uint32_t skipped_prints; 13833 13834 skipped_prints = ctl_softc->skipped_prints; 13835 13836 ctl_softc->skipped_prints = 0; 13837 ctl_softc->last_print_jiffies = time_uptime; 13838 13839 if (skipped_prints > 0) { 13840#ifdef NEEDTOPORT 13841 csevent_log(CSC_CTL | CSC_SHELF_SW | 13842 CTL_ERROR_REPORT, 13843 csevent_LogType_Trace, 13844 csevent_Severity_Information, 13845 csevent_AlertLevel_Green, 13846 csevent_FRU_Firmware, 13847 csevent_FRU_Unknown, 13848 "High CTL error volume, %d prints " 13849 "skipped", skipped_prints); 13850#endif 13851 } 13852 if (bootverbose || verbose > 0) 13853 ctl_io_error_print(io, NULL); 13854 } 13855 } 13856 break; 13857 } 13858 case CTL_IO_TASK: 13859 if (bootverbose || verbose > 0) 13860 ctl_io_error_print(io, NULL); 13861 break; 13862 default: 13863 break; 13864 } 13865 13866 /* 13867 * Tell the FETD or the other shelf controller we're done with this 13868 * command. Note that only SCSI commands get to this point. Task 13869 * management commands are completed above. 13870 * 13871 * We only send status to the other controller if we're in XFER 13872 * mode. In SER_ONLY mode, the I/O is done on the controller that 13873 * received the I/O (from CTL's perspective), and so the status is 13874 * generated there. 13875 * 13876 * XXX KDM if we hold the lock here, we could cause a deadlock 13877 * if the frontend comes back in in this context to queue 13878 * something. 13879 */ 13880 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13881 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13882 union ctl_ha_msg msg; 13883 13884 memset(&msg, 0, sizeof(msg)); 13885 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13886 msg.hdr.original_sc = io->io_hdr.original_sc; 13887 msg.hdr.nexus = io->io_hdr.nexus; 13888 msg.hdr.status = io->io_hdr.status; 13889 msg.scsi.scsi_status = io->scsiio.scsi_status; 13890 msg.scsi.tag_num = io->scsiio.tag_num; 13891 msg.scsi.tag_type = io->scsiio.tag_type; 13892 msg.scsi.sense_len = io->scsiio.sense_len; 13893 msg.scsi.sense_residual = io->scsiio.sense_residual; 13894 msg.scsi.residual = io->scsiio.residual; 13895 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13896 sizeof(io->scsiio.sense_data)); 13897 /* 13898 * We copy this whether or not this is an I/O-related 13899 * command. Otherwise, we'd have to go and check to see 13900 * whether it's a read/write command, and it really isn't 13901 * worth it. 13902 */ 13903 memcpy(&msg.scsi.lbalen, 13904 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13905 sizeof(msg.scsi.lbalen)); 13906 13907 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13908 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13909 /* XXX do something here */ 13910 } 13911 13912 ctl_free_io(io); 13913 } else 13914 fe_done(io); 13915 13916bailout: 13917 13918 return (CTL_RETVAL_COMPLETE); 13919} 13920 13921#ifdef CTL_WITH_CA 13922/* 13923 * Front end should call this if it doesn't do autosense. When the request 13924 * sense comes back in from the initiator, we'll dequeue this and send it. 13925 */ 13926int 13927ctl_queue_sense(union ctl_io *io) 13928{ 13929 struct ctl_lun *lun; 13930 struct ctl_softc *ctl_softc; 13931 uint32_t initidx, targ_lun; 13932 13933 ctl_softc = control_softc; 13934 13935 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13936 13937 /* 13938 * LUN lookup will likely move to the ctl_work_thread() once we 13939 * have our new queueing infrastructure (that doesn't put things on 13940 * a per-LUN queue initially). That is so that we can handle 13941 * things like an INQUIRY to a LUN that we don't have enabled. We 13942 * can't deal with that right now. 13943 */ 13944 mtx_lock(&ctl_softc->ctl_lock); 13945 13946 /* 13947 * If we don't have a LUN for this, just toss the sense 13948 * information. 13949 */ 13950 targ_lun = io->io_hdr.nexus.targ_lun; 13951 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13952 if ((targ_lun < CTL_MAX_LUNS) 13953 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13954 lun = ctl_softc->ctl_luns[targ_lun]; 13955 else 13956 goto bailout; 13957 13958 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13959 13960 mtx_lock(&lun->lun_lock); 13961 /* 13962 * Already have CA set for this LUN...toss the sense information. 13963 */ 13964 if (ctl_is_set(lun->have_ca, initidx)) { 13965 mtx_unlock(&lun->lun_lock); 13966 goto bailout; 13967 } 13968 13969 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13970 ctl_min(sizeof(lun->pending_sense[initidx]), 13971 sizeof(io->scsiio.sense_data))); 13972 ctl_set_mask(lun->have_ca, initidx); 13973 mtx_unlock(&lun->lun_lock); 13974 13975bailout: 13976 mtx_unlock(&ctl_softc->ctl_lock); 13977 13978 ctl_free_io(io); 13979 13980 return (CTL_RETVAL_COMPLETE); 13981} 13982#endif 13983 13984/* 13985 * Primary command inlet from frontend ports. All SCSI and task I/O 13986 * requests must go through this function. 13987 */ 13988int 13989ctl_queue(union ctl_io *io) 13990{ 13991 struct ctl_softc *ctl_softc; 13992 13993 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13994 13995 ctl_softc = control_softc; 13996 13997#ifdef CTL_TIME_IO 13998 io->io_hdr.start_time = time_uptime; 13999 getbintime(&io->io_hdr.start_bt); 14000#endif /* CTL_TIME_IO */ 14001 14002 /* Map FE-specific LUN ID into global one. */ 14003 io->io_hdr.nexus.targ_mapped_lun = 14004 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 14005 14006 switch (io->io_hdr.io_type) { 14007 case CTL_IO_SCSI: 14008 case CTL_IO_TASK: 14009 ctl_enqueue_incoming(io); 14010 break; 14011 default: 14012 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 14013 return (EINVAL); 14014 } 14015 14016 return (CTL_RETVAL_COMPLETE); 14017} 14018 14019#ifdef CTL_IO_DELAY 14020static void 14021ctl_done_timer_wakeup(void *arg) 14022{ 14023 union ctl_io *io; 14024 14025 io = (union ctl_io *)arg; 14026 ctl_done(io); 14027} 14028#endif /* CTL_IO_DELAY */ 14029 14030void 14031ctl_done(union ctl_io *io) 14032{ 14033 struct ctl_softc *ctl_softc; 14034 14035 ctl_softc = control_softc; 14036 14037 /* 14038 * Enable this to catch duplicate completion issues. 14039 */ 14040#if 0 14041 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 14042 printf("%s: type %d msg %d cdb %x iptl: " 14043 "%d:%d:%d:%d tag 0x%04x " 14044 "flag %#x status %x\n", 14045 __func__, 14046 io->io_hdr.io_type, 14047 io->io_hdr.msg_type, 14048 io->scsiio.cdb[0], 14049 io->io_hdr.nexus.initid.id, 14050 io->io_hdr.nexus.targ_port, 14051 io->io_hdr.nexus.targ_target.id, 14052 io->io_hdr.nexus.targ_lun, 14053 (io->io_hdr.io_type == 14054 CTL_IO_TASK) ? 14055 io->taskio.tag_num : 14056 io->scsiio.tag_num, 14057 io->io_hdr.flags, 14058 io->io_hdr.status); 14059 } else 14060 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14061#endif 14062 14063 /* 14064 * This is an internal copy of an I/O, and should not go through 14065 * the normal done processing logic. 14066 */ 14067 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14068 return; 14069 14070 /* 14071 * We need to send a msg to the serializing shelf to finish the IO 14072 * as well. We don't send a finish message to the other shelf if 14073 * this is a task management command. Task management commands 14074 * aren't serialized in the OOA queue, but rather just executed on 14075 * both shelf controllers for commands that originated on that 14076 * controller. 14077 */ 14078 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14079 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14080 union ctl_ha_msg msg_io; 14081 14082 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14083 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14084 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14085 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14086 } 14087 /* continue on to finish IO */ 14088 } 14089#ifdef CTL_IO_DELAY 14090 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14091 struct ctl_lun *lun; 14092 14093 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14094 14095 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14096 } else { 14097 struct ctl_lun *lun; 14098 14099 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14100 14101 if ((lun != NULL) 14102 && (lun->delay_info.done_delay > 0)) { 14103 struct callout *callout; 14104 14105 callout = (struct callout *)&io->io_hdr.timer_bytes; 14106 callout_init(callout, /*mpsafe*/ 1); 14107 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14108 callout_reset(callout, 14109 lun->delay_info.done_delay * hz, 14110 ctl_done_timer_wakeup, io); 14111 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14112 lun->delay_info.done_delay = 0; 14113 return; 14114 } 14115 } 14116#endif /* CTL_IO_DELAY */ 14117 14118 ctl_enqueue_done(io); 14119} 14120 14121int 14122ctl_isc(struct ctl_scsiio *ctsio) 14123{ 14124 struct ctl_lun *lun; 14125 int retval; 14126 14127 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14128 14129 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14130 14131 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14132 14133 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14134 14135 return (retval); 14136} 14137 14138 14139static void 14140ctl_work_thread(void *arg) 14141{ 14142 struct ctl_thread *thr = (struct ctl_thread *)arg; 14143 struct ctl_softc *softc = thr->ctl_softc; 14144 union ctl_io *io; 14145 int retval; 14146 14147 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14148 14149 for (;;) { 14150 retval = 0; 14151 14152 /* 14153 * We handle the queues in this order: 14154 * - ISC 14155 * - done queue (to free up resources, unblock other commands) 14156 * - RtR queue 14157 * - incoming queue 14158 * 14159 * If those queues are empty, we break out of the loop and 14160 * go to sleep. 14161 */ 14162 mtx_lock(&thr->queue_lock); 14163 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14164 if (io != NULL) { 14165 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14166 mtx_unlock(&thr->queue_lock); 14167 ctl_handle_isc(io); 14168 continue; 14169 } 14170 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14171 if (io != NULL) { 14172 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14173 /* clear any blocked commands, call fe_done */ 14174 mtx_unlock(&thr->queue_lock); 14175 retval = ctl_process_done(io); 14176 continue; 14177 } 14178 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14179 if (io != NULL) { 14180 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14181 mtx_unlock(&thr->queue_lock); 14182 if (io->io_hdr.io_type == CTL_IO_TASK) 14183 ctl_run_task(io); 14184 else 14185 ctl_scsiio_precheck(softc, &io->scsiio); 14186 continue; 14187 } 14188 if (!ctl_pause_rtr) { 14189 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14190 if (io != NULL) { 14191 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14192 mtx_unlock(&thr->queue_lock); 14193 retval = ctl_scsiio(&io->scsiio); 14194 if (retval != CTL_RETVAL_COMPLETE) 14195 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14196 continue; 14197 } 14198 } 14199 14200 /* Sleep until we have something to do. */ 14201 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14202 } 14203} 14204 14205static void 14206ctl_lun_thread(void *arg) 14207{ 14208 struct ctl_softc *softc = (struct ctl_softc *)arg; 14209 struct ctl_be_lun *be_lun; 14210 int retval; 14211 14212 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14213 14214 for (;;) { 14215 retval = 0; 14216 mtx_lock(&softc->ctl_lock); 14217 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14218 if (be_lun != NULL) { 14219 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14220 mtx_unlock(&softc->ctl_lock); 14221 ctl_create_lun(be_lun); 14222 continue; 14223 } 14224 14225 /* Sleep until we have something to do. */ 14226 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14227 PDROP | PRIBIO, "-", 0); 14228 } 14229} 14230 14231static void 14232ctl_enqueue_incoming(union ctl_io *io) 14233{ 14234 struct ctl_softc *softc = control_softc; 14235 struct ctl_thread *thr; 14236 u_int idx; 14237 14238 idx = (io->io_hdr.nexus.targ_port * 127 + 14239 io->io_hdr.nexus.initid.id) % worker_threads; 14240 thr = &softc->threads[idx]; 14241 mtx_lock(&thr->queue_lock); 14242 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14243 mtx_unlock(&thr->queue_lock); 14244 wakeup(thr); 14245} 14246 14247static void 14248ctl_enqueue_rtr(union ctl_io *io) 14249{ 14250 struct ctl_softc *softc = control_softc; 14251 struct ctl_thread *thr; 14252 14253 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14254 mtx_lock(&thr->queue_lock); 14255 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14256 mtx_unlock(&thr->queue_lock); 14257 wakeup(thr); 14258} 14259 14260static void 14261ctl_enqueue_done(union ctl_io *io) 14262{ 14263 struct ctl_softc *softc = control_softc; 14264 struct ctl_thread *thr; 14265 14266 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14267 mtx_lock(&thr->queue_lock); 14268 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14269 mtx_unlock(&thr->queue_lock); 14270 wakeup(thr); 14271} 14272 14273static void 14274ctl_enqueue_isc(union ctl_io *io) 14275{ 14276 struct ctl_softc *softc = control_softc; 14277 struct ctl_thread *thr; 14278 14279 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14280 mtx_lock(&thr->queue_lock); 14281 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14282 mtx_unlock(&thr->queue_lock); 14283 wakeup(thr); 14284} 14285 14286/* Initialization and failover */ 14287 14288void 14289ctl_init_isc_msg(void) 14290{ 14291 printf("CTL: Still calling this thing\n"); 14292} 14293 14294/* 14295 * Init component 14296 * Initializes component into configuration defined by bootMode 14297 * (see hasc-sv.c) 14298 * returns hasc_Status: 14299 * OK 14300 * ERROR - fatal error 14301 */ 14302static ctl_ha_comp_status 14303ctl_isc_init(struct ctl_ha_component *c) 14304{ 14305 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14306 14307 c->status = ret; 14308 return ret; 14309} 14310 14311/* Start component 14312 * Starts component in state requested. If component starts successfully, 14313 * it must set its own state to the requestrd state 14314 * When requested state is HASC_STATE_HA, the component may refine it 14315 * by adding _SLAVE or _MASTER flags. 14316 * Currently allowed state transitions are: 14317 * UNKNOWN->HA - initial startup 14318 * UNKNOWN->SINGLE - initial startup when no parter detected 14319 * HA->SINGLE - failover 14320 * returns ctl_ha_comp_status: 14321 * OK - component successfully started in requested state 14322 * FAILED - could not start the requested state, failover may 14323 * be possible 14324 * ERROR - fatal error detected, no future startup possible 14325 */ 14326static ctl_ha_comp_status 14327ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14328{ 14329 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14330 14331 printf("%s: go\n", __func__); 14332 14333 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14334 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14335 ctl_is_single = 0; 14336 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14337 != CTL_HA_STATUS_SUCCESS) { 14338 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14339 ret = CTL_HA_COMP_STATUS_ERROR; 14340 } 14341 } else if (CTL_HA_STATE_IS_HA(c->state) 14342 && CTL_HA_STATE_IS_SINGLE(state)){ 14343 // HA->SINGLE transition 14344 ctl_failover(); 14345 ctl_is_single = 1; 14346 } else { 14347 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14348 c->state, state); 14349 ret = CTL_HA_COMP_STATUS_ERROR; 14350 } 14351 if (CTL_HA_STATE_IS_SINGLE(state)) 14352 ctl_is_single = 1; 14353 14354 c->state = state; 14355 c->status = ret; 14356 return ret; 14357} 14358 14359/* 14360 * Quiesce component 14361 * The component must clear any error conditions (set status to OK) and 14362 * prepare itself to another Start call 14363 * returns ctl_ha_comp_status: 14364 * OK 14365 * ERROR 14366 */ 14367static ctl_ha_comp_status 14368ctl_isc_quiesce(struct ctl_ha_component *c) 14369{ 14370 int ret = CTL_HA_COMP_STATUS_OK; 14371 14372 ctl_pause_rtr = 1; 14373 c->status = ret; 14374 return ret; 14375} 14376 14377struct ctl_ha_component ctl_ha_component_ctlisc = 14378{ 14379 .name = "CTL ISC", 14380 .state = CTL_HA_STATE_UNKNOWN, 14381 .init = ctl_isc_init, 14382 .start = ctl_isc_start, 14383 .quiesce = ctl_isc_quiesce 14384}; 14385 14386/* 14387 * vim: ts=8 14388 */ 14389