ctl.c revision 272617
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 272617 2014-10-06 12:36:42Z 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 * 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 9 330 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_mpp(struct ctl_scsiio *ctsio, int alloc_len); 386static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 387 int alloc_len); 388static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 389 int alloc_len); 390static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 391static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 392static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 393static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 394static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 395static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 396static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 397 union ctl_io *ooa_io); 398static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 399 union ctl_io *starting_io); 400static int ctl_check_blocked(struct ctl_lun *lun); 401static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 402 struct ctl_lun *lun, 403 const struct ctl_cmd_entry *entry, 404 struct ctl_scsiio *ctsio); 405//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 406static void ctl_failover(void); 407static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 408 struct ctl_scsiio *ctsio); 409static int ctl_scsiio(struct ctl_scsiio *ctsio); 410 411static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 412static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 413 ctl_ua_type ua_type); 414static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 415 ctl_ua_type ua_type); 416static int ctl_abort_task(union ctl_io *io); 417static int ctl_abort_task_set(union ctl_io *io); 418static int ctl_i_t_nexus_reset(union ctl_io *io); 419static void ctl_run_task(union ctl_io *io); 420#ifdef CTL_IO_DELAY 421static void ctl_datamove_timer_wakeup(void *arg); 422static void ctl_done_timer_wakeup(void *arg); 423#endif /* CTL_IO_DELAY */ 424 425static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 426static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 427static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 428static void ctl_datamove_remote_write(union ctl_io *io); 429static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 430static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 431static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 432static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 433 ctl_ha_dt_cb callback); 434static void ctl_datamove_remote_read(union ctl_io *io); 435static void ctl_datamove_remote(union ctl_io *io); 436static int ctl_process_done(union ctl_io *io); 437static void ctl_lun_thread(void *arg); 438static void ctl_work_thread(void *arg); 439static void ctl_enqueue_incoming(union ctl_io *io); 440static void ctl_enqueue_rtr(union ctl_io *io); 441static void ctl_enqueue_done(union ctl_io *io); 442static void ctl_enqueue_isc(union ctl_io *io); 443static const struct ctl_cmd_entry * 444 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 445static const struct ctl_cmd_entry * 446 ctl_validate_command(struct ctl_scsiio *ctsio); 447static int ctl_cmd_applicable(uint8_t lun_type, 448 const struct ctl_cmd_entry *entry); 449 450/* 451 * Load the serialization table. This isn't very pretty, but is probably 452 * the easiest way to do it. 453 */ 454#include "ctl_ser_table.c" 455 456/* 457 * We only need to define open, close and ioctl routines for this driver. 458 */ 459static struct cdevsw ctl_cdevsw = { 460 .d_version = D_VERSION, 461 .d_flags = 0, 462 .d_open = ctl_open, 463 .d_close = ctl_close, 464 .d_ioctl = ctl_ioctl, 465 .d_name = "ctl", 466}; 467 468 469MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 470MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 471 472static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 473 474static moduledata_t ctl_moduledata = { 475 "ctl", 476 ctl_module_event_handler, 477 NULL 478}; 479 480DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 481MODULE_VERSION(ctl, 1); 482 483static struct ctl_frontend ioctl_frontend = 484{ 485 .name = "ioctl", 486}; 487 488static void 489ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 490 union ctl_ha_msg *msg_info) 491{ 492 struct ctl_scsiio *ctsio; 493 494 if (msg_info->hdr.original_sc == NULL) { 495 printf("%s: original_sc == NULL!\n", __func__); 496 /* XXX KDM now what? */ 497 return; 498 } 499 500 ctsio = &msg_info->hdr.original_sc->scsiio; 501 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 502 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 503 ctsio->io_hdr.status = msg_info->hdr.status; 504 ctsio->scsi_status = msg_info->scsi.scsi_status; 505 ctsio->sense_len = msg_info->scsi.sense_len; 506 ctsio->sense_residual = msg_info->scsi.sense_residual; 507 ctsio->residual = msg_info->scsi.residual; 508 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 509 sizeof(ctsio->sense_data)); 510 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 511 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 512 ctl_enqueue_isc((union ctl_io *)ctsio); 513} 514 515static void 516ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 517 union ctl_ha_msg *msg_info) 518{ 519 struct ctl_scsiio *ctsio; 520 521 if (msg_info->hdr.serializing_sc == NULL) { 522 printf("%s: serializing_sc == NULL!\n", __func__); 523 /* XXX KDM now what? */ 524 return; 525 } 526 527 ctsio = &msg_info->hdr.serializing_sc->scsiio; 528#if 0 529 /* 530 * Attempt to catch the situation where an I/O has 531 * been freed, and we're using it again. 532 */ 533 if (ctsio->io_hdr.io_type == 0xff) { 534 union ctl_io *tmp_io; 535 tmp_io = (union ctl_io *)ctsio; 536 printf("%s: %p use after free!\n", __func__, 537 ctsio); 538 printf("%s: type %d msg %d cdb %x iptl: " 539 "%d:%d:%d:%d tag 0x%04x " 540 "flag %#x status %x\n", 541 __func__, 542 tmp_io->io_hdr.io_type, 543 tmp_io->io_hdr.msg_type, 544 tmp_io->scsiio.cdb[0], 545 tmp_io->io_hdr.nexus.initid.id, 546 tmp_io->io_hdr.nexus.targ_port, 547 tmp_io->io_hdr.nexus.targ_target.id, 548 tmp_io->io_hdr.nexus.targ_lun, 549 (tmp_io->io_hdr.io_type == 550 CTL_IO_TASK) ? 551 tmp_io->taskio.tag_num : 552 tmp_io->scsiio.tag_num, 553 tmp_io->io_hdr.flags, 554 tmp_io->io_hdr.status); 555 } 556#endif 557 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 558 ctl_enqueue_isc((union ctl_io *)ctsio); 559} 560 561/* 562 * ISC (Inter Shelf Communication) event handler. Events from the HA 563 * subsystem come in here. 564 */ 565static void 566ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 567{ 568 struct ctl_softc *ctl_softc; 569 union ctl_io *io; 570 struct ctl_prio *presio; 571 ctl_ha_status isc_status; 572 573 ctl_softc = control_softc; 574 io = NULL; 575 576 577#if 0 578 printf("CTL: Isc Msg event %d\n", event); 579#endif 580 if (event == CTL_HA_EVT_MSG_RECV) { 581 union ctl_ha_msg msg_info; 582 583 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 584 sizeof(msg_info), /*wait*/ 0); 585#if 0 586 printf("CTL: msg_type %d\n", msg_info.msg_type); 587#endif 588 if (isc_status != 0) { 589 printf("Error receiving message, status = %d\n", 590 isc_status); 591 return; 592 } 593 594 switch (msg_info.hdr.msg_type) { 595 case CTL_MSG_SERIALIZE: 596#if 0 597 printf("Serialize\n"); 598#endif 599 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 600 if (io == NULL) { 601 printf("ctl_isc_event_handler: can't allocate " 602 "ctl_io!\n"); 603 /* Bad Juju */ 604 /* Need to set busy and send msg back */ 605 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 606 msg_info.hdr.status = CTL_SCSI_ERROR; 607 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 608 msg_info.scsi.sense_len = 0; 609 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 610 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 611 } 612 goto bailout; 613 } 614 ctl_zero_io(io); 615 // populate ctsio from msg_info 616 io->io_hdr.io_type = CTL_IO_SCSI; 617 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 618 io->io_hdr.original_sc = msg_info.hdr.original_sc; 619#if 0 620 printf("pOrig %x\n", (int)msg_info.original_sc); 621#endif 622 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 623 CTL_FLAG_IO_ACTIVE; 624 /* 625 * If we're in serialization-only mode, we don't 626 * want to go through full done processing. Thus 627 * the COPY flag. 628 * 629 * XXX KDM add another flag that is more specific. 630 */ 631 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 632 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 633 io->io_hdr.nexus = msg_info.hdr.nexus; 634#if 0 635 printf("targ %d, port %d, iid %d, lun %d\n", 636 io->io_hdr.nexus.targ_target.id, 637 io->io_hdr.nexus.targ_port, 638 io->io_hdr.nexus.initid.id, 639 io->io_hdr.nexus.targ_lun); 640#endif 641 io->scsiio.tag_num = msg_info.scsi.tag_num; 642 io->scsiio.tag_type = msg_info.scsi.tag_type; 643 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 644 CTL_MAX_CDBLEN); 645 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 646 const struct ctl_cmd_entry *entry; 647 648 entry = ctl_get_cmd_entry(&io->scsiio); 649 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 650 io->io_hdr.flags |= 651 entry->flags & CTL_FLAG_DATA_MASK; 652 } 653 ctl_enqueue_isc(io); 654 break; 655 656 /* Performed on the Originating SC, XFER mode only */ 657 case CTL_MSG_DATAMOVE: { 658 struct ctl_sg_entry *sgl; 659 int i, j; 660 661 io = msg_info.hdr.original_sc; 662 if (io == NULL) { 663 printf("%s: original_sc == NULL!\n", __func__); 664 /* XXX KDM do something here */ 665 break; 666 } 667 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 668 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 669 /* 670 * Keep track of this, we need to send it back over 671 * when the datamove is complete. 672 */ 673 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 674 675 if (msg_info.dt.sg_sequence == 0) { 676 /* 677 * XXX KDM we use the preallocated S/G list 678 * here, but we'll need to change this to 679 * dynamic allocation if we need larger S/G 680 * lists. 681 */ 682 if (msg_info.dt.kern_sg_entries > 683 sizeof(io->io_hdr.remote_sglist) / 684 sizeof(io->io_hdr.remote_sglist[0])) { 685 printf("%s: number of S/G entries " 686 "needed %u > allocated num %zd\n", 687 __func__, 688 msg_info.dt.kern_sg_entries, 689 sizeof(io->io_hdr.remote_sglist)/ 690 sizeof(io->io_hdr.remote_sglist[0])); 691 692 /* 693 * XXX KDM send a message back to 694 * the other side to shut down the 695 * DMA. The error will come back 696 * through via the normal channel. 697 */ 698 break; 699 } 700 sgl = io->io_hdr.remote_sglist; 701 memset(sgl, 0, 702 sizeof(io->io_hdr.remote_sglist)); 703 704 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 705 706 io->scsiio.kern_sg_entries = 707 msg_info.dt.kern_sg_entries; 708 io->scsiio.rem_sg_entries = 709 msg_info.dt.kern_sg_entries; 710 io->scsiio.kern_data_len = 711 msg_info.dt.kern_data_len; 712 io->scsiio.kern_total_len = 713 msg_info.dt.kern_total_len; 714 io->scsiio.kern_data_resid = 715 msg_info.dt.kern_data_resid; 716 io->scsiio.kern_rel_offset = 717 msg_info.dt.kern_rel_offset; 718 /* 719 * Clear out per-DMA flags. 720 */ 721 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 722 /* 723 * Add per-DMA flags that are set for this 724 * particular DMA request. 725 */ 726 io->io_hdr.flags |= msg_info.dt.flags & 727 CTL_FLAG_RDMA_MASK; 728 } else 729 sgl = (struct ctl_sg_entry *) 730 io->scsiio.kern_data_ptr; 731 732 for (i = msg_info.dt.sent_sg_entries, j = 0; 733 i < (msg_info.dt.sent_sg_entries + 734 msg_info.dt.cur_sg_entries); i++, j++) { 735 sgl[i].addr = msg_info.dt.sg_list[j].addr; 736 sgl[i].len = msg_info.dt.sg_list[j].len; 737 738#if 0 739 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 740 __func__, 741 msg_info.dt.sg_list[j].addr, 742 msg_info.dt.sg_list[j].len, 743 sgl[i].addr, sgl[i].len, j, i); 744#endif 745 } 746#if 0 747 memcpy(&sgl[msg_info.dt.sent_sg_entries], 748 msg_info.dt.sg_list, 749 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 750#endif 751 752 /* 753 * If this is the last piece of the I/O, we've got 754 * the full S/G list. Queue processing in the thread. 755 * Otherwise wait for the next piece. 756 */ 757 if (msg_info.dt.sg_last != 0) 758 ctl_enqueue_isc(io); 759 break; 760 } 761 /* Performed on the Serializing (primary) SC, XFER mode only */ 762 case CTL_MSG_DATAMOVE_DONE: { 763 if (msg_info.hdr.serializing_sc == NULL) { 764 printf("%s: serializing_sc == NULL!\n", 765 __func__); 766 /* XXX KDM now what? */ 767 break; 768 } 769 /* 770 * We grab the sense information here in case 771 * there was a failure, so we can return status 772 * back to the initiator. 773 */ 774 io = msg_info.hdr.serializing_sc; 775 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 776 io->io_hdr.status = msg_info.hdr.status; 777 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 778 io->scsiio.sense_len = msg_info.scsi.sense_len; 779 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 780 io->io_hdr.port_status = msg_info.scsi.fetd_status; 781 io->scsiio.residual = msg_info.scsi.residual; 782 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 783 sizeof(io->scsiio.sense_data)); 784 ctl_enqueue_isc(io); 785 break; 786 } 787 788 /* Preformed on Originating SC, SER_ONLY mode */ 789 case CTL_MSG_R2R: 790 io = msg_info.hdr.original_sc; 791 if (io == NULL) { 792 printf("%s: Major Bummer\n", __func__); 793 return; 794 } else { 795#if 0 796 printf("pOrig %x\n",(int) ctsio); 797#endif 798 } 799 io->io_hdr.msg_type = CTL_MSG_R2R; 800 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 801 ctl_enqueue_isc(io); 802 break; 803 804 /* 805 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 806 * mode. 807 * Performed on the Originating (i.e. secondary) SC in XFER 808 * mode 809 */ 810 case CTL_MSG_FINISH_IO: 811 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 812 ctl_isc_handler_finish_xfer(ctl_softc, 813 &msg_info); 814 else 815 ctl_isc_handler_finish_ser_only(ctl_softc, 816 &msg_info); 817 break; 818 819 /* Preformed on Originating SC */ 820 case CTL_MSG_BAD_JUJU: 821 io = msg_info.hdr.original_sc; 822 if (io == NULL) { 823 printf("%s: Bad JUJU!, original_sc is NULL!\n", 824 __func__); 825 break; 826 } 827 ctl_copy_sense_data(&msg_info, io); 828 /* 829 * IO should have already been cleaned up on other 830 * SC so clear this flag so we won't send a message 831 * back to finish the IO there. 832 */ 833 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 834 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 835 836 /* io = msg_info.hdr.serializing_sc; */ 837 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 838 ctl_enqueue_isc(io); 839 break; 840 841 /* Handle resets sent from the other side */ 842 case CTL_MSG_MANAGE_TASKS: { 843 struct ctl_taskio *taskio; 844 taskio = (struct ctl_taskio *)ctl_alloc_io( 845 (void *)ctl_softc->othersc_pool); 846 if (taskio == NULL) { 847 printf("ctl_isc_event_handler: can't allocate " 848 "ctl_io!\n"); 849 /* Bad Juju */ 850 /* should I just call the proper reset func 851 here??? */ 852 goto bailout; 853 } 854 ctl_zero_io((union ctl_io *)taskio); 855 taskio->io_hdr.io_type = CTL_IO_TASK; 856 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 857 taskio->io_hdr.nexus = msg_info.hdr.nexus; 858 taskio->task_action = msg_info.task.task_action; 859 taskio->tag_num = msg_info.task.tag_num; 860 taskio->tag_type = msg_info.task.tag_type; 861#ifdef CTL_TIME_IO 862 taskio->io_hdr.start_time = time_uptime; 863 getbintime(&taskio->io_hdr.start_bt); 864#if 0 865 cs_prof_gettime(&taskio->io_hdr.start_ticks); 866#endif 867#endif /* CTL_TIME_IO */ 868 ctl_run_task((union ctl_io *)taskio); 869 break; 870 } 871 /* Persistent Reserve action which needs attention */ 872 case CTL_MSG_PERS_ACTION: 873 presio = (struct ctl_prio *)ctl_alloc_io( 874 (void *)ctl_softc->othersc_pool); 875 if (presio == NULL) { 876 printf("ctl_isc_event_handler: can't allocate " 877 "ctl_io!\n"); 878 /* Bad Juju */ 879 /* Need to set busy and send msg back */ 880 goto bailout; 881 } 882 ctl_zero_io((union ctl_io *)presio); 883 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 884 presio->pr_msg = msg_info.pr; 885 ctl_enqueue_isc((union ctl_io *)presio); 886 break; 887 case CTL_MSG_SYNC_FE: 888 rcv_sync_msg = 1; 889 break; 890 case CTL_MSG_APS_LOCK: { 891 // It's quicker to execute this then to 892 // queue it. 893 struct ctl_lun *lun; 894 struct ctl_page_index *page_index; 895 struct copan_aps_subpage *current_sp; 896 uint32_t targ_lun; 897 898 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 899 lun = ctl_softc->ctl_luns[targ_lun]; 900 mtx_lock(&lun->lun_lock); 901 page_index = &lun->mode_pages.index[index_to_aps_page]; 902 current_sp = (struct copan_aps_subpage *) 903 (page_index->page_data + 904 (page_index->page_len * CTL_PAGE_CURRENT)); 905 906 current_sp->lock_active = msg_info.aps.lock_flag; 907 mtx_unlock(&lun->lun_lock); 908 break; 909 } 910 default: 911 printf("How did I get here?\n"); 912 } 913 } else if (event == CTL_HA_EVT_MSG_SENT) { 914 if (param != CTL_HA_STATUS_SUCCESS) { 915 printf("Bad status from ctl_ha_msg_send status %d\n", 916 param); 917 } 918 return; 919 } else if (event == CTL_HA_EVT_DISCONNECT) { 920 printf("CTL: Got a disconnect from Isc\n"); 921 return; 922 } else { 923 printf("ctl_isc_event_handler: Unknown event %d\n", event); 924 return; 925 } 926 927bailout: 928 return; 929} 930 931static void 932ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 933{ 934 struct scsi_sense_data *sense; 935 936 sense = &dest->scsiio.sense_data; 937 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 938 dest->scsiio.scsi_status = src->scsi.scsi_status; 939 dest->scsiio.sense_len = src->scsi.sense_len; 940 dest->io_hdr.status = src->hdr.status; 941} 942 943static int 944ctl_init(void) 945{ 946 struct ctl_softc *softc; 947 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 948 struct ctl_port *port; 949 uint8_t sc_id =0; 950 int i, error, retval; 951 //int isc_retval; 952 953 retval = 0; 954 ctl_pause_rtr = 0; 955 rcv_sync_msg = 0; 956 957 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 958 M_WAITOK | M_ZERO); 959 softc = control_softc; 960 961 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 962 "cam/ctl"); 963 964 softc->dev->si_drv1 = softc; 965 966 /* 967 * By default, return a "bad LUN" peripheral qualifier for unknown 968 * LUNs. The user can override this default using the tunable or 969 * sysctl. See the comment in ctl_inquiry_std() for more details. 970 */ 971 softc->inquiry_pq_no_lun = 1; 972 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 973 &softc->inquiry_pq_no_lun); 974 sysctl_ctx_init(&softc->sysctl_ctx); 975 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 976 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 977 CTLFLAG_RD, 0, "CAM Target Layer"); 978 979 if (softc->sysctl_tree == NULL) { 980 printf("%s: unable to allocate sysctl tree\n", __func__); 981 destroy_dev(softc->dev); 982 free(control_softc, M_DEVBUF); 983 control_softc = NULL; 984 return (ENOMEM); 985 } 986 987 SYSCTL_ADD_INT(&softc->sysctl_ctx, 988 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 989 "inquiry_pq_no_lun", CTLFLAG_RW, 990 &softc->inquiry_pq_no_lun, 0, 991 "Report no lun possible for invalid LUNs"); 992 993 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 994 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 995 softc->open_count = 0; 996 997 /* 998 * Default to actually sending a SYNCHRONIZE CACHE command down to 999 * the drive. 1000 */ 1001 softc->flags = CTL_FLAG_REAL_SYNC; 1002 1003 /* 1004 * In Copan's HA scheme, the "master" and "slave" roles are 1005 * figured out through the slot the controller is in. Although it 1006 * is an active/active system, someone has to be in charge. 1007 */ 1008#ifdef NEEDTOPORT 1009 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1010#endif 1011 1012 if (sc_id == 0) { 1013 softc->flags |= CTL_FLAG_MASTER_SHELF; 1014 persis_offset = 0; 1015 } else 1016 persis_offset = CTL_MAX_INITIATORS; 1017 1018 /* 1019 * XXX KDM need to figure out where we want to get our target ID 1020 * and WWID. Is it different on each port? 1021 */ 1022 softc->target.id = 0; 1023 softc->target.wwid[0] = 0x12345678; 1024 softc->target.wwid[1] = 0x87654321; 1025 STAILQ_INIT(&softc->lun_list); 1026 STAILQ_INIT(&softc->pending_lun_queue); 1027 STAILQ_INIT(&softc->fe_list); 1028 STAILQ_INIT(&softc->port_list); 1029 STAILQ_INIT(&softc->be_list); 1030 STAILQ_INIT(&softc->io_pools); 1031 ctl_tpc_init(softc); 1032 1033 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1034 &internal_pool)!= 0){ 1035 printf("ctl: can't allocate %d entry internal pool, " 1036 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1037 return (ENOMEM); 1038 } 1039 1040 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1041 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1042 printf("ctl: can't allocate %d entry emergency pool, " 1043 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1044 ctl_pool_free(internal_pool); 1045 return (ENOMEM); 1046 } 1047 1048 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1049 &other_pool) != 0) 1050 { 1051 printf("ctl: can't allocate %d entry other SC pool, " 1052 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1053 ctl_pool_free(internal_pool); 1054 ctl_pool_free(emergency_pool); 1055 return (ENOMEM); 1056 } 1057 1058 softc->internal_pool = internal_pool; 1059 softc->emergency_pool = emergency_pool; 1060 softc->othersc_pool = other_pool; 1061 1062 if (worker_threads <= 0) 1063 worker_threads = max(1, mp_ncpus / 4); 1064 if (worker_threads > CTL_MAX_THREADS) 1065 worker_threads = CTL_MAX_THREADS; 1066 1067 for (i = 0; i < worker_threads; i++) { 1068 struct ctl_thread *thr = &softc->threads[i]; 1069 1070 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1071 thr->ctl_softc = softc; 1072 STAILQ_INIT(&thr->incoming_queue); 1073 STAILQ_INIT(&thr->rtr_queue); 1074 STAILQ_INIT(&thr->done_queue); 1075 STAILQ_INIT(&thr->isc_queue); 1076 1077 error = kproc_kthread_add(ctl_work_thread, thr, 1078 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1079 if (error != 0) { 1080 printf("error creating CTL work thread!\n"); 1081 ctl_pool_free(internal_pool); 1082 ctl_pool_free(emergency_pool); 1083 ctl_pool_free(other_pool); 1084 return (error); 1085 } 1086 } 1087 error = kproc_kthread_add(ctl_lun_thread, softc, 1088 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1089 if (error != 0) { 1090 printf("error creating CTL lun thread!\n"); 1091 ctl_pool_free(internal_pool); 1092 ctl_pool_free(emergency_pool); 1093 ctl_pool_free(other_pool); 1094 return (error); 1095 } 1096 if (bootverbose) 1097 printf("ctl: CAM Target Layer loaded\n"); 1098 1099 /* 1100 * Initialize the ioctl front end. 1101 */ 1102 ctl_frontend_register(&ioctl_frontend); 1103 port = &softc->ioctl_info.port; 1104 port->frontend = &ioctl_frontend; 1105 sprintf(softc->ioctl_info.port_name, "ioctl"); 1106 port->port_type = CTL_PORT_IOCTL; 1107 port->num_requested_ctl_io = 100; 1108 port->port_name = softc->ioctl_info.port_name; 1109 port->port_online = ctl_ioctl_online; 1110 port->port_offline = ctl_ioctl_offline; 1111 port->onoff_arg = &softc->ioctl_info; 1112 port->lun_enable = ctl_ioctl_lun_enable; 1113 port->lun_disable = ctl_ioctl_lun_disable; 1114 port->targ_lun_arg = &softc->ioctl_info; 1115 port->fe_datamove = ctl_ioctl_datamove; 1116 port->fe_done = ctl_ioctl_done; 1117 port->max_targets = 15; 1118 port->max_target_id = 15; 1119 1120 if (ctl_port_register(&softc->ioctl_info.port, 1121 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1122 printf("ctl: ioctl front end registration failed, will " 1123 "continue anyway\n"); 1124 } 1125 1126#ifdef CTL_IO_DELAY 1127 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1128 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1129 sizeof(struct callout), CTL_TIMER_BYTES); 1130 return (EINVAL); 1131 } 1132#endif /* CTL_IO_DELAY */ 1133 1134 return (0); 1135} 1136 1137void 1138ctl_shutdown(void) 1139{ 1140 struct ctl_softc *softc; 1141 struct ctl_lun *lun, *next_lun; 1142 struct ctl_io_pool *pool; 1143 1144 softc = (struct ctl_softc *)control_softc; 1145 1146 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1147 printf("ctl: ioctl front end deregistration failed\n"); 1148 1149 mtx_lock(&softc->ctl_lock); 1150 1151 /* 1152 * Free up each LUN. 1153 */ 1154 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1155 next_lun = STAILQ_NEXT(lun, links); 1156 ctl_free_lun(lun); 1157 } 1158 1159 mtx_unlock(&softc->ctl_lock); 1160 1161 ctl_frontend_deregister(&ioctl_frontend); 1162 1163 /* 1164 * This will rip the rug out from under any FETDs or anyone else 1165 * that has a pool allocated. Since we increment our module 1166 * refcount any time someone outside the main CTL module allocates 1167 * a pool, we shouldn't have any problems here. The user won't be 1168 * able to unload the CTL module until client modules have 1169 * successfully unloaded. 1170 */ 1171 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1172 ctl_pool_free(pool); 1173 1174#if 0 1175 ctl_shutdown_thread(softc->work_thread); 1176 mtx_destroy(&softc->queue_lock); 1177#endif 1178 1179 ctl_tpc_shutdown(softc); 1180 mtx_destroy(&softc->pool_lock); 1181 mtx_destroy(&softc->ctl_lock); 1182 1183 destroy_dev(softc->dev); 1184 1185 sysctl_ctx_free(&softc->sysctl_ctx); 1186 1187 free(control_softc, M_DEVBUF); 1188 control_softc = NULL; 1189 1190 if (bootverbose) 1191 printf("ctl: CAM Target Layer unloaded\n"); 1192} 1193 1194static int 1195ctl_module_event_handler(module_t mod, int what, void *arg) 1196{ 1197 1198 switch (what) { 1199 case MOD_LOAD: 1200 return (ctl_init()); 1201 case MOD_UNLOAD: 1202 return (EBUSY); 1203 default: 1204 return (EOPNOTSUPP); 1205 } 1206} 1207 1208/* 1209 * XXX KDM should we do some access checks here? Bump a reference count to 1210 * prevent a CTL module from being unloaded while someone has it open? 1211 */ 1212static int 1213ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1214{ 1215 return (0); 1216} 1217 1218static int 1219ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1220{ 1221 return (0); 1222} 1223 1224int 1225ctl_port_enable(ctl_port_type port_type) 1226{ 1227 struct ctl_softc *softc; 1228 struct ctl_port *port; 1229 1230 if (ctl_is_single == 0) { 1231 union ctl_ha_msg msg_info; 1232 int isc_retval; 1233 1234#if 0 1235 printf("%s: HA mode, synchronizing frontend enable\n", 1236 __func__); 1237#endif 1238 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1239 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1240 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1241 printf("Sync msg send error retval %d\n", isc_retval); 1242 } 1243 if (!rcv_sync_msg) { 1244 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1245 sizeof(msg_info), 1); 1246 } 1247#if 0 1248 printf("CTL:Frontend Enable\n"); 1249 } else { 1250 printf("%s: single mode, skipping frontend synchronization\n", 1251 __func__); 1252#endif 1253 } 1254 1255 softc = control_softc; 1256 1257 STAILQ_FOREACH(port, &softc->port_list, links) { 1258 if (port_type & port->port_type) 1259 { 1260#if 0 1261 printf("port %d\n", port->targ_port); 1262#endif 1263 ctl_port_online(port); 1264 } 1265 } 1266 1267 return (0); 1268} 1269 1270int 1271ctl_port_disable(ctl_port_type port_type) 1272{ 1273 struct ctl_softc *softc; 1274 struct ctl_port *port; 1275 1276 softc = control_softc; 1277 1278 STAILQ_FOREACH(port, &softc->port_list, links) { 1279 if (port_type & port->port_type) 1280 ctl_port_offline(port); 1281 } 1282 1283 return (0); 1284} 1285 1286/* 1287 * Returns 0 for success, 1 for failure. 1288 * Currently the only failure mode is if there aren't enough entries 1289 * allocated. So, in case of a failure, look at num_entries_dropped, 1290 * reallocate and try again. 1291 */ 1292int 1293ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1294 int *num_entries_filled, int *num_entries_dropped, 1295 ctl_port_type port_type, int no_virtual) 1296{ 1297 struct ctl_softc *softc; 1298 struct ctl_port *port; 1299 int entries_dropped, entries_filled; 1300 int retval; 1301 int i; 1302 1303 softc = control_softc; 1304 1305 retval = 0; 1306 entries_filled = 0; 1307 entries_dropped = 0; 1308 1309 i = 0; 1310 mtx_lock(&softc->ctl_lock); 1311 STAILQ_FOREACH(port, &softc->port_list, links) { 1312 struct ctl_port_entry *entry; 1313 1314 if ((port->port_type & port_type) == 0) 1315 continue; 1316 1317 if ((no_virtual != 0) 1318 && (port->virtual_port != 0)) 1319 continue; 1320 1321 if (entries_filled >= num_entries_alloced) { 1322 entries_dropped++; 1323 continue; 1324 } 1325 entry = &entries[i]; 1326 1327 entry->port_type = port->port_type; 1328 strlcpy(entry->port_name, port->port_name, 1329 sizeof(entry->port_name)); 1330 entry->physical_port = port->physical_port; 1331 entry->virtual_port = port->virtual_port; 1332 entry->wwnn = port->wwnn; 1333 entry->wwpn = port->wwpn; 1334 1335 i++; 1336 entries_filled++; 1337 } 1338 1339 mtx_unlock(&softc->ctl_lock); 1340 1341 if (entries_dropped > 0) 1342 retval = 1; 1343 1344 *num_entries_dropped = entries_dropped; 1345 *num_entries_filled = entries_filled; 1346 1347 return (retval); 1348} 1349 1350static void 1351ctl_ioctl_online(void *arg) 1352{ 1353 struct ctl_ioctl_info *ioctl_info; 1354 1355 ioctl_info = (struct ctl_ioctl_info *)arg; 1356 1357 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1358} 1359 1360static void 1361ctl_ioctl_offline(void *arg) 1362{ 1363 struct ctl_ioctl_info *ioctl_info; 1364 1365 ioctl_info = (struct ctl_ioctl_info *)arg; 1366 1367 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1368} 1369 1370/* 1371 * Remove an initiator by port number and initiator ID. 1372 * Returns 0 for success, -1 for failure. 1373 */ 1374int 1375ctl_remove_initiator(struct ctl_port *port, int iid) 1376{ 1377 struct ctl_softc *softc = control_softc; 1378 1379 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1380 1381 if (iid > CTL_MAX_INIT_PER_PORT) { 1382 printf("%s: initiator ID %u > maximun %u!\n", 1383 __func__, iid, CTL_MAX_INIT_PER_PORT); 1384 return (-1); 1385 } 1386 1387 mtx_lock(&softc->ctl_lock); 1388 port->wwpn_iid[iid].in_use--; 1389 port->wwpn_iid[iid].last_use = time_uptime; 1390 mtx_unlock(&softc->ctl_lock); 1391 1392 return (0); 1393} 1394 1395/* 1396 * Add an initiator to the initiator map. 1397 * Returns iid for success, < 0 for failure. 1398 */ 1399int 1400ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1401{ 1402 struct ctl_softc *softc = control_softc; 1403 time_t best_time; 1404 int i, best; 1405 1406 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1407 1408 if (iid >= CTL_MAX_INIT_PER_PORT) { 1409 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1410 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1411 free(name, M_CTL); 1412 return (-1); 1413 } 1414 1415 mtx_lock(&softc->ctl_lock); 1416 1417 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1418 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1419 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1420 iid = i; 1421 break; 1422 } 1423 if (name != NULL && port->wwpn_iid[i].name != NULL && 1424 strcmp(name, port->wwpn_iid[i].name) == 0) { 1425 iid = i; 1426 break; 1427 } 1428 } 1429 } 1430 1431 if (iid < 0) { 1432 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1433 if (port->wwpn_iid[i].in_use == 0 && 1434 port->wwpn_iid[i].wwpn == 0 && 1435 port->wwpn_iid[i].name == NULL) { 1436 iid = i; 1437 break; 1438 } 1439 } 1440 } 1441 1442 if (iid < 0) { 1443 best = -1; 1444 best_time = INT32_MAX; 1445 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1446 if (port->wwpn_iid[i].in_use == 0) { 1447 if (port->wwpn_iid[i].last_use < best_time) { 1448 best = i; 1449 best_time = port->wwpn_iid[i].last_use; 1450 } 1451 } 1452 } 1453 iid = best; 1454 } 1455 1456 if (iid < 0) { 1457 mtx_unlock(&softc->ctl_lock); 1458 free(name, M_CTL); 1459 return (-2); 1460 } 1461 1462 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1463 /* 1464 * This is not an error yet. 1465 */ 1466 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1467#if 0 1468 printf("%s: port %d iid %u WWPN %#jx arrived" 1469 " again\n", __func__, port->targ_port, 1470 iid, (uintmax_t)wwpn); 1471#endif 1472 goto take; 1473 } 1474 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1475 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1476#if 0 1477 printf("%s: port %d iid %u name '%s' arrived" 1478 " again\n", __func__, port->targ_port, 1479 iid, name); 1480#endif 1481 goto take; 1482 } 1483 1484 /* 1485 * This is an error, but what do we do about it? The 1486 * driver is telling us we have a new WWPN for this 1487 * initiator ID, so we pretty much need to use it. 1488 */ 1489 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1490 " but WWPN %#jx '%s' is still at that address\n", 1491 __func__, port->targ_port, iid, wwpn, name, 1492 (uintmax_t)port->wwpn_iid[iid].wwpn, 1493 port->wwpn_iid[iid].name); 1494 1495 /* 1496 * XXX KDM clear have_ca and ua_pending on each LUN for 1497 * this initiator. 1498 */ 1499 } 1500take: 1501 free(port->wwpn_iid[iid].name, M_CTL); 1502 port->wwpn_iid[iid].name = name; 1503 port->wwpn_iid[iid].wwpn = wwpn; 1504 port->wwpn_iid[iid].in_use++; 1505 mtx_unlock(&softc->ctl_lock); 1506 1507 return (iid); 1508} 1509 1510static int 1511ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1512{ 1513 int len; 1514 1515 switch (port->port_type) { 1516 case CTL_PORT_FC: 1517 { 1518 struct scsi_transportid_fcp *id = 1519 (struct scsi_transportid_fcp *)buf; 1520 if (port->wwpn_iid[iid].wwpn == 0) 1521 return (0); 1522 memset(id, 0, sizeof(*id)); 1523 id->format_protocol = SCSI_PROTO_FC; 1524 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1525 return (sizeof(*id)); 1526 } 1527 case CTL_PORT_ISCSI: 1528 { 1529 struct scsi_transportid_iscsi_port *id = 1530 (struct scsi_transportid_iscsi_port *)buf; 1531 if (port->wwpn_iid[iid].name == NULL) 1532 return (0); 1533 memset(id, 0, 256); 1534 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1535 SCSI_PROTO_ISCSI; 1536 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1537 len = roundup2(min(len, 252), 4); 1538 scsi_ulto2b(len, id->additional_length); 1539 return (sizeof(*id) + len); 1540 } 1541 case CTL_PORT_SAS: 1542 { 1543 struct scsi_transportid_sas *id = 1544 (struct scsi_transportid_sas *)buf; 1545 if (port->wwpn_iid[iid].wwpn == 0) 1546 return (0); 1547 memset(id, 0, sizeof(*id)); 1548 id->format_protocol = SCSI_PROTO_SAS; 1549 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1550 return (sizeof(*id)); 1551 } 1552 default: 1553 { 1554 struct scsi_transportid_spi *id = 1555 (struct scsi_transportid_spi *)buf; 1556 memset(id, 0, sizeof(*id)); 1557 id->format_protocol = SCSI_PROTO_SPI; 1558 scsi_ulto2b(iid, id->scsi_addr); 1559 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1560 return (sizeof(*id)); 1561 } 1562 } 1563} 1564 1565static int 1566ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1567{ 1568 return (0); 1569} 1570 1571static int 1572ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1573{ 1574 return (0); 1575} 1576 1577/* 1578 * Data movement routine for the CTL ioctl frontend port. 1579 */ 1580static int 1581ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1582{ 1583 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1584 struct ctl_sg_entry ext_entry, kern_entry; 1585 int ext_sglen, ext_sg_entries, kern_sg_entries; 1586 int ext_sg_start, ext_offset; 1587 int len_to_copy, len_copied; 1588 int kern_watermark, ext_watermark; 1589 int ext_sglist_malloced; 1590 int i, j; 1591 1592 ext_sglist_malloced = 0; 1593 ext_sg_start = 0; 1594 ext_offset = 0; 1595 1596 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1597 1598 /* 1599 * If this flag is set, fake the data transfer. 1600 */ 1601 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1602 ctsio->ext_data_filled = ctsio->ext_data_len; 1603 goto bailout; 1604 } 1605 1606 /* 1607 * To simplify things here, if we have a single buffer, stick it in 1608 * a S/G entry and just make it a single entry S/G list. 1609 */ 1610 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1611 int len_seen; 1612 1613 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1614 1615 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1616 M_WAITOK); 1617 ext_sglist_malloced = 1; 1618 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1619 ext_sglen) != 0) { 1620 ctl_set_internal_failure(ctsio, 1621 /*sks_valid*/ 0, 1622 /*retry_count*/ 0); 1623 goto bailout; 1624 } 1625 ext_sg_entries = ctsio->ext_sg_entries; 1626 len_seen = 0; 1627 for (i = 0; i < ext_sg_entries; i++) { 1628 if ((len_seen + ext_sglist[i].len) >= 1629 ctsio->ext_data_filled) { 1630 ext_sg_start = i; 1631 ext_offset = ctsio->ext_data_filled - len_seen; 1632 break; 1633 } 1634 len_seen += ext_sglist[i].len; 1635 } 1636 } else { 1637 ext_sglist = &ext_entry; 1638 ext_sglist->addr = ctsio->ext_data_ptr; 1639 ext_sglist->len = ctsio->ext_data_len; 1640 ext_sg_entries = 1; 1641 ext_sg_start = 0; 1642 ext_offset = ctsio->ext_data_filled; 1643 } 1644 1645 if (ctsio->kern_sg_entries > 0) { 1646 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1647 kern_sg_entries = ctsio->kern_sg_entries; 1648 } else { 1649 kern_sglist = &kern_entry; 1650 kern_sglist->addr = ctsio->kern_data_ptr; 1651 kern_sglist->len = ctsio->kern_data_len; 1652 kern_sg_entries = 1; 1653 } 1654 1655 1656 kern_watermark = 0; 1657 ext_watermark = ext_offset; 1658 len_copied = 0; 1659 for (i = ext_sg_start, j = 0; 1660 i < ext_sg_entries && j < kern_sg_entries;) { 1661 uint8_t *ext_ptr, *kern_ptr; 1662 1663 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1664 kern_sglist[j].len - kern_watermark); 1665 1666 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1667 ext_ptr = ext_ptr + ext_watermark; 1668 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1669 /* 1670 * XXX KDM fix this! 1671 */ 1672 panic("need to implement bus address support"); 1673#if 0 1674 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1675#endif 1676 } else 1677 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1678 kern_ptr = kern_ptr + kern_watermark; 1679 1680 kern_watermark += len_to_copy; 1681 ext_watermark += len_to_copy; 1682 1683 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1684 CTL_FLAG_DATA_IN) { 1685 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1686 "bytes to user\n", len_to_copy)); 1687 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1688 "to %p\n", kern_ptr, ext_ptr)); 1689 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1690 ctl_set_internal_failure(ctsio, 1691 /*sks_valid*/ 0, 1692 /*retry_count*/ 0); 1693 goto bailout; 1694 } 1695 } else { 1696 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1697 "bytes from user\n", len_to_copy)); 1698 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1699 "to %p\n", ext_ptr, kern_ptr)); 1700 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1701 ctl_set_internal_failure(ctsio, 1702 /*sks_valid*/ 0, 1703 /*retry_count*/0); 1704 goto bailout; 1705 } 1706 } 1707 1708 len_copied += len_to_copy; 1709 1710 if (ext_sglist[i].len == ext_watermark) { 1711 i++; 1712 ext_watermark = 0; 1713 } 1714 1715 if (kern_sglist[j].len == kern_watermark) { 1716 j++; 1717 kern_watermark = 0; 1718 } 1719 } 1720 1721 ctsio->ext_data_filled += len_copied; 1722 1723 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1724 "kern_sg_entries: %d\n", ext_sg_entries, 1725 kern_sg_entries)); 1726 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1727 "kern_data_len = %d\n", ctsio->ext_data_len, 1728 ctsio->kern_data_len)); 1729 1730 1731 /* XXX KDM set residual?? */ 1732bailout: 1733 1734 if (ext_sglist_malloced != 0) 1735 free(ext_sglist, M_CTL); 1736 1737 return (CTL_RETVAL_COMPLETE); 1738} 1739 1740/* 1741 * Serialize a command that went down the "wrong" side, and so was sent to 1742 * this controller for execution. The logic is a little different than the 1743 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1744 * sent back to the other side, but in the success case, we execute the 1745 * command on this side (XFER mode) or tell the other side to execute it 1746 * (SER_ONLY mode). 1747 */ 1748static int 1749ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1750{ 1751 struct ctl_softc *ctl_softc; 1752 union ctl_ha_msg msg_info; 1753 struct ctl_lun *lun; 1754 int retval = 0; 1755 uint32_t targ_lun; 1756 1757 ctl_softc = control_softc; 1758 1759 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1760 lun = ctl_softc->ctl_luns[targ_lun]; 1761 if (lun==NULL) 1762 { 1763 /* 1764 * Why isn't LUN defined? The other side wouldn't 1765 * send a cmd if the LUN is undefined. 1766 */ 1767 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1768 1769 /* "Logical unit not supported" */ 1770 ctl_set_sense_data(&msg_info.scsi.sense_data, 1771 lun, 1772 /*sense_format*/SSD_TYPE_NONE, 1773 /*current_error*/ 1, 1774 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1775 /*asc*/ 0x25, 1776 /*ascq*/ 0x00, 1777 SSD_ELEM_NONE); 1778 1779 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1780 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1781 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1782 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1783 msg_info.hdr.serializing_sc = NULL; 1784 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1785 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1786 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1787 } 1788 return(1); 1789 1790 } 1791 1792 mtx_lock(&lun->lun_lock); 1793 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1794 1795 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1796 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1797 ooa_links))) { 1798 case CTL_ACTION_BLOCK: 1799 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1800 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1801 blocked_links); 1802 break; 1803 case CTL_ACTION_PASS: 1804 case CTL_ACTION_SKIP: 1805 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1806 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1807 ctl_enqueue_rtr((union ctl_io *)ctsio); 1808 } else { 1809 1810 /* send msg back to other side */ 1811 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1812 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1813 msg_info.hdr.msg_type = CTL_MSG_R2R; 1814#if 0 1815 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1816#endif 1817 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1818 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1819 } 1820 } 1821 break; 1822 case CTL_ACTION_OVERLAP: 1823 /* OVERLAPPED COMMANDS ATTEMPTED */ 1824 ctl_set_sense_data(&msg_info.scsi.sense_data, 1825 lun, 1826 /*sense_format*/SSD_TYPE_NONE, 1827 /*current_error*/ 1, 1828 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1829 /*asc*/ 0x4E, 1830 /*ascq*/ 0x00, 1831 SSD_ELEM_NONE); 1832 1833 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1834 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1835 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1836 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1837 msg_info.hdr.serializing_sc = NULL; 1838 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1839#if 0 1840 printf("BAD JUJU:Major Bummer Overlap\n"); 1841#endif 1842 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1843 retval = 1; 1844 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1845 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1846 } 1847 break; 1848 case CTL_ACTION_OVERLAP_TAG: 1849 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1850 ctl_set_sense_data(&msg_info.scsi.sense_data, 1851 lun, 1852 /*sense_format*/SSD_TYPE_NONE, 1853 /*current_error*/ 1, 1854 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1855 /*asc*/ 0x4D, 1856 /*ascq*/ ctsio->tag_num & 0xff, 1857 SSD_ELEM_NONE); 1858 1859 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1860 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1861 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1862 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1863 msg_info.hdr.serializing_sc = NULL; 1864 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1865#if 0 1866 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1867#endif 1868 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1869 retval = 1; 1870 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1871 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1872 } 1873 break; 1874 case CTL_ACTION_ERROR: 1875 default: 1876 /* "Internal target failure" */ 1877 ctl_set_sense_data(&msg_info.scsi.sense_data, 1878 lun, 1879 /*sense_format*/SSD_TYPE_NONE, 1880 /*current_error*/ 1, 1881 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1882 /*asc*/ 0x44, 1883 /*ascq*/ 0x00, 1884 SSD_ELEM_NONE); 1885 1886 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1887 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1888 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1889 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1890 msg_info.hdr.serializing_sc = NULL; 1891 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1892#if 0 1893 printf("BAD JUJU:Major Bummer HW Error\n"); 1894#endif 1895 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1896 retval = 1; 1897 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1898 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1899 } 1900 break; 1901 } 1902 mtx_unlock(&lun->lun_lock); 1903 return (retval); 1904} 1905 1906static int 1907ctl_ioctl_submit_wait(union ctl_io *io) 1908{ 1909 struct ctl_fe_ioctl_params params; 1910 ctl_fe_ioctl_state last_state; 1911 int done, retval; 1912 1913 retval = 0; 1914 1915 bzero(¶ms, sizeof(params)); 1916 1917 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1918 cv_init(¶ms.sem, "ctlioccv"); 1919 params.state = CTL_IOCTL_INPROG; 1920 last_state = params.state; 1921 1922 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1923 1924 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1925 1926 /* This shouldn't happen */ 1927 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1928 return (retval); 1929 1930 done = 0; 1931 1932 do { 1933 mtx_lock(¶ms.ioctl_mtx); 1934 /* 1935 * Check the state here, and don't sleep if the state has 1936 * already changed (i.e. wakeup has already occured, but we 1937 * weren't waiting yet). 1938 */ 1939 if (params.state == last_state) { 1940 /* XXX KDM cv_wait_sig instead? */ 1941 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1942 } 1943 last_state = params.state; 1944 1945 switch (params.state) { 1946 case CTL_IOCTL_INPROG: 1947 /* Why did we wake up? */ 1948 /* XXX KDM error here? */ 1949 mtx_unlock(¶ms.ioctl_mtx); 1950 break; 1951 case CTL_IOCTL_DATAMOVE: 1952 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1953 1954 /* 1955 * change last_state back to INPROG to avoid 1956 * deadlock on subsequent data moves. 1957 */ 1958 params.state = last_state = CTL_IOCTL_INPROG; 1959 1960 mtx_unlock(¶ms.ioctl_mtx); 1961 ctl_ioctl_do_datamove(&io->scsiio); 1962 /* 1963 * Note that in some cases, most notably writes, 1964 * this will queue the I/O and call us back later. 1965 * In other cases, generally reads, this routine 1966 * will immediately call back and wake us up, 1967 * probably using our own context. 1968 */ 1969 io->scsiio.be_move_done(io); 1970 break; 1971 case CTL_IOCTL_DONE: 1972 mtx_unlock(¶ms.ioctl_mtx); 1973 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1974 done = 1; 1975 break; 1976 default: 1977 mtx_unlock(¶ms.ioctl_mtx); 1978 /* XXX KDM error here? */ 1979 break; 1980 } 1981 } while (done == 0); 1982 1983 mtx_destroy(¶ms.ioctl_mtx); 1984 cv_destroy(¶ms.sem); 1985 1986 return (CTL_RETVAL_COMPLETE); 1987} 1988 1989static void 1990ctl_ioctl_datamove(union ctl_io *io) 1991{ 1992 struct ctl_fe_ioctl_params *params; 1993 1994 params = (struct ctl_fe_ioctl_params *) 1995 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1996 1997 mtx_lock(¶ms->ioctl_mtx); 1998 params->state = CTL_IOCTL_DATAMOVE; 1999 cv_broadcast(¶ms->sem); 2000 mtx_unlock(¶ms->ioctl_mtx); 2001} 2002 2003static void 2004ctl_ioctl_done(union ctl_io *io) 2005{ 2006 struct ctl_fe_ioctl_params *params; 2007 2008 params = (struct ctl_fe_ioctl_params *) 2009 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2010 2011 mtx_lock(¶ms->ioctl_mtx); 2012 params->state = CTL_IOCTL_DONE; 2013 cv_broadcast(¶ms->sem); 2014 mtx_unlock(¶ms->ioctl_mtx); 2015} 2016 2017static void 2018ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2019{ 2020 struct ctl_fe_ioctl_startstop_info *sd_info; 2021 2022 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2023 2024 sd_info->hs_info.status = metatask->status; 2025 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2026 sd_info->hs_info.luns_complete = 2027 metatask->taskinfo.startstop.luns_complete; 2028 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2029 2030 cv_broadcast(&sd_info->sem); 2031} 2032 2033static void 2034ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2035{ 2036 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2037 2038 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2039 2040 mtx_lock(fe_bbr_info->lock); 2041 fe_bbr_info->bbr_info->status = metatask->status; 2042 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2043 fe_bbr_info->wakeup_done = 1; 2044 mtx_unlock(fe_bbr_info->lock); 2045 2046 cv_broadcast(&fe_bbr_info->sem); 2047} 2048 2049/* 2050 * Returns 0 for success, errno for failure. 2051 */ 2052static int 2053ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2054 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2055{ 2056 union ctl_io *io; 2057 int retval; 2058 2059 retval = 0; 2060 2061 mtx_lock(&lun->lun_lock); 2062 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2063 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2064 ooa_links)) { 2065 struct ctl_ooa_entry *entry; 2066 2067 /* 2068 * If we've got more than we can fit, just count the 2069 * remaining entries. 2070 */ 2071 if (*cur_fill_num >= ooa_hdr->alloc_num) 2072 continue; 2073 2074 entry = &kern_entries[*cur_fill_num]; 2075 2076 entry->tag_num = io->scsiio.tag_num; 2077 entry->lun_num = lun->lun; 2078#ifdef CTL_TIME_IO 2079 entry->start_bt = io->io_hdr.start_bt; 2080#endif 2081 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2082 entry->cdb_len = io->scsiio.cdb_len; 2083 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2084 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2085 2086 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2087 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2088 2089 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2090 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2091 2092 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2093 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2094 2095 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2096 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2097 } 2098 mtx_unlock(&lun->lun_lock); 2099 2100 return (retval); 2101} 2102 2103static void * 2104ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2105 size_t error_str_len) 2106{ 2107 void *kptr; 2108 2109 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2110 2111 if (copyin(user_addr, kptr, len) != 0) { 2112 snprintf(error_str, error_str_len, "Error copying %d bytes " 2113 "from user address %p to kernel address %p", len, 2114 user_addr, kptr); 2115 free(kptr, M_CTL); 2116 return (NULL); 2117 } 2118 2119 return (kptr); 2120} 2121 2122static void 2123ctl_free_args(int num_args, struct ctl_be_arg *args) 2124{ 2125 int i; 2126 2127 if (args == NULL) 2128 return; 2129 2130 for (i = 0; i < num_args; i++) { 2131 free(args[i].kname, M_CTL); 2132 free(args[i].kvalue, M_CTL); 2133 } 2134 2135 free(args, M_CTL); 2136} 2137 2138static struct ctl_be_arg * 2139ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2140 char *error_str, size_t error_str_len) 2141{ 2142 struct ctl_be_arg *args; 2143 int i; 2144 2145 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2146 error_str, error_str_len); 2147 2148 if (args == NULL) 2149 goto bailout; 2150 2151 for (i = 0; i < num_args; i++) { 2152 args[i].kname = NULL; 2153 args[i].kvalue = NULL; 2154 } 2155 2156 for (i = 0; i < num_args; i++) { 2157 uint8_t *tmpptr; 2158 2159 args[i].kname = ctl_copyin_alloc(args[i].name, 2160 args[i].namelen, error_str, error_str_len); 2161 if (args[i].kname == NULL) 2162 goto bailout; 2163 2164 if (args[i].kname[args[i].namelen - 1] != '\0') { 2165 snprintf(error_str, error_str_len, "Argument %d " 2166 "name is not NUL-terminated", i); 2167 goto bailout; 2168 } 2169 2170 if (args[i].flags & CTL_BEARG_RD) { 2171 tmpptr = ctl_copyin_alloc(args[i].value, 2172 args[i].vallen, error_str, error_str_len); 2173 if (tmpptr == NULL) 2174 goto bailout; 2175 if ((args[i].flags & CTL_BEARG_ASCII) 2176 && (tmpptr[args[i].vallen - 1] != '\0')) { 2177 snprintf(error_str, error_str_len, "Argument " 2178 "%d value is not NUL-terminated", i); 2179 goto bailout; 2180 } 2181 args[i].kvalue = tmpptr; 2182 } else { 2183 args[i].kvalue = malloc(args[i].vallen, 2184 M_CTL, M_WAITOK | M_ZERO); 2185 } 2186 } 2187 2188 return (args); 2189bailout: 2190 2191 ctl_free_args(num_args, args); 2192 2193 return (NULL); 2194} 2195 2196static void 2197ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2198{ 2199 int i; 2200 2201 for (i = 0; i < num_args; i++) { 2202 if (args[i].flags & CTL_BEARG_WR) 2203 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2204 } 2205} 2206 2207/* 2208 * Escape characters that are illegal or not recommended in XML. 2209 */ 2210int 2211ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2212{ 2213 int retval; 2214 2215 retval = 0; 2216 2217 for (; *str; str++) { 2218 switch (*str) { 2219 case '&': 2220 retval = sbuf_printf(sb, "&"); 2221 break; 2222 case '>': 2223 retval = sbuf_printf(sb, ">"); 2224 break; 2225 case '<': 2226 retval = sbuf_printf(sb, "<"); 2227 break; 2228 default: 2229 retval = sbuf_putc(sb, *str); 2230 break; 2231 } 2232 2233 if (retval != 0) 2234 break; 2235 2236 } 2237 2238 return (retval); 2239} 2240 2241static int 2242ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2243 struct thread *td) 2244{ 2245 struct ctl_softc *softc; 2246 int retval; 2247 2248 softc = control_softc; 2249 2250 retval = 0; 2251 2252 switch (cmd) { 2253 case CTL_IO: { 2254 union ctl_io *io; 2255 void *pool_tmp; 2256 2257 /* 2258 * If we haven't been "enabled", don't allow any SCSI I/O 2259 * to this FETD. 2260 */ 2261 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2262 retval = EPERM; 2263 break; 2264 } 2265 2266 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2267 if (io == NULL) { 2268 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2269 retval = ENOSPC; 2270 break; 2271 } 2272 2273 /* 2274 * Need to save the pool reference so it doesn't get 2275 * spammed by the user's ctl_io. 2276 */ 2277 pool_tmp = io->io_hdr.pool; 2278 2279 memcpy(io, (void *)addr, sizeof(*io)); 2280 2281 io->io_hdr.pool = pool_tmp; 2282 /* 2283 * No status yet, so make sure the status is set properly. 2284 */ 2285 io->io_hdr.status = CTL_STATUS_NONE; 2286 2287 /* 2288 * The user sets the initiator ID, target and LUN IDs. 2289 */ 2290 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2291 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2292 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2293 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2294 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2295 2296 retval = ctl_ioctl_submit_wait(io); 2297 2298 if (retval != 0) { 2299 ctl_free_io(io); 2300 break; 2301 } 2302 2303 memcpy((void *)addr, io, sizeof(*io)); 2304 2305 /* return this to our pool */ 2306 ctl_free_io(io); 2307 2308 break; 2309 } 2310 case CTL_ENABLE_PORT: 2311 case CTL_DISABLE_PORT: 2312 case CTL_SET_PORT_WWNS: { 2313 struct ctl_port *port; 2314 struct ctl_port_entry *entry; 2315 2316 entry = (struct ctl_port_entry *)addr; 2317 2318 mtx_lock(&softc->ctl_lock); 2319 STAILQ_FOREACH(port, &softc->port_list, links) { 2320 int action, done; 2321 2322 action = 0; 2323 done = 0; 2324 2325 if ((entry->port_type == CTL_PORT_NONE) 2326 && (entry->targ_port == port->targ_port)) { 2327 /* 2328 * If the user only wants to enable or 2329 * disable or set WWNs on a specific port, 2330 * do the operation and we're done. 2331 */ 2332 action = 1; 2333 done = 1; 2334 } else if (entry->port_type & port->port_type) { 2335 /* 2336 * Compare the user's type mask with the 2337 * particular frontend type to see if we 2338 * have a match. 2339 */ 2340 action = 1; 2341 done = 0; 2342 2343 /* 2344 * Make sure the user isn't trying to set 2345 * WWNs on multiple ports at the same time. 2346 */ 2347 if (cmd == CTL_SET_PORT_WWNS) { 2348 printf("%s: Can't set WWNs on " 2349 "multiple ports\n", __func__); 2350 retval = EINVAL; 2351 break; 2352 } 2353 } 2354 if (action != 0) { 2355 /* 2356 * XXX KDM we have to drop the lock here, 2357 * because the online/offline operations 2358 * can potentially block. We need to 2359 * reference count the frontends so they 2360 * can't go away, 2361 */ 2362 mtx_unlock(&softc->ctl_lock); 2363 2364 if (cmd == CTL_ENABLE_PORT) { 2365 struct ctl_lun *lun; 2366 2367 STAILQ_FOREACH(lun, &softc->lun_list, 2368 links) { 2369 port->lun_enable(port->targ_lun_arg, 2370 lun->target, 2371 lun->lun); 2372 } 2373 2374 ctl_port_online(port); 2375 } else if (cmd == CTL_DISABLE_PORT) { 2376 struct ctl_lun *lun; 2377 2378 ctl_port_offline(port); 2379 2380 STAILQ_FOREACH(lun, &softc->lun_list, 2381 links) { 2382 port->lun_disable( 2383 port->targ_lun_arg, 2384 lun->target, 2385 lun->lun); 2386 } 2387 } 2388 2389 mtx_lock(&softc->ctl_lock); 2390 2391 if (cmd == CTL_SET_PORT_WWNS) 2392 ctl_port_set_wwns(port, 2393 (entry->flags & CTL_PORT_WWNN_VALID) ? 2394 1 : 0, entry->wwnn, 2395 (entry->flags & CTL_PORT_WWPN_VALID) ? 2396 1 : 0, entry->wwpn); 2397 } 2398 if (done != 0) 2399 break; 2400 } 2401 mtx_unlock(&softc->ctl_lock); 2402 break; 2403 } 2404 case CTL_GET_PORT_LIST: { 2405 struct ctl_port *port; 2406 struct ctl_port_list *list; 2407 int i; 2408 2409 list = (struct ctl_port_list *)addr; 2410 2411 if (list->alloc_len != (list->alloc_num * 2412 sizeof(struct ctl_port_entry))) { 2413 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2414 "alloc_num %u * sizeof(struct ctl_port_entry) " 2415 "%zu\n", __func__, list->alloc_len, 2416 list->alloc_num, sizeof(struct ctl_port_entry)); 2417 retval = EINVAL; 2418 break; 2419 } 2420 list->fill_len = 0; 2421 list->fill_num = 0; 2422 list->dropped_num = 0; 2423 i = 0; 2424 mtx_lock(&softc->ctl_lock); 2425 STAILQ_FOREACH(port, &softc->port_list, links) { 2426 struct ctl_port_entry entry, *list_entry; 2427 2428 if (list->fill_num >= list->alloc_num) { 2429 list->dropped_num++; 2430 continue; 2431 } 2432 2433 entry.port_type = port->port_type; 2434 strlcpy(entry.port_name, port->port_name, 2435 sizeof(entry.port_name)); 2436 entry.targ_port = port->targ_port; 2437 entry.physical_port = port->physical_port; 2438 entry.virtual_port = port->virtual_port; 2439 entry.wwnn = port->wwnn; 2440 entry.wwpn = port->wwpn; 2441 if (port->status & CTL_PORT_STATUS_ONLINE) 2442 entry.online = 1; 2443 else 2444 entry.online = 0; 2445 2446 list_entry = &list->entries[i]; 2447 2448 retval = copyout(&entry, list_entry, sizeof(entry)); 2449 if (retval != 0) { 2450 printf("%s: CTL_GET_PORT_LIST: copyout " 2451 "returned %d\n", __func__, retval); 2452 break; 2453 } 2454 i++; 2455 list->fill_num++; 2456 list->fill_len += sizeof(entry); 2457 } 2458 mtx_unlock(&softc->ctl_lock); 2459 2460 /* 2461 * If this is non-zero, we had a copyout fault, so there's 2462 * probably no point in attempting to set the status inside 2463 * the structure. 2464 */ 2465 if (retval != 0) 2466 break; 2467 2468 if (list->dropped_num > 0) 2469 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2470 else 2471 list->status = CTL_PORT_LIST_OK; 2472 break; 2473 } 2474 case CTL_DUMP_OOA: { 2475 struct ctl_lun *lun; 2476 union ctl_io *io; 2477 char printbuf[128]; 2478 struct sbuf sb; 2479 2480 mtx_lock(&softc->ctl_lock); 2481 printf("Dumping OOA queues:\n"); 2482 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2483 mtx_lock(&lun->lun_lock); 2484 for (io = (union ctl_io *)TAILQ_FIRST( 2485 &lun->ooa_queue); io != NULL; 2486 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2487 ooa_links)) { 2488 sbuf_new(&sb, printbuf, sizeof(printbuf), 2489 SBUF_FIXEDLEN); 2490 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2491 (intmax_t)lun->lun, 2492 io->scsiio.tag_num, 2493 (io->io_hdr.flags & 2494 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2495 (io->io_hdr.flags & 2496 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2497 (io->io_hdr.flags & 2498 CTL_FLAG_ABORT) ? " ABORT" : "", 2499 (io->io_hdr.flags & 2500 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2501 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2502 sbuf_finish(&sb); 2503 printf("%s\n", sbuf_data(&sb)); 2504 } 2505 mtx_unlock(&lun->lun_lock); 2506 } 2507 printf("OOA queues dump done\n"); 2508 mtx_unlock(&softc->ctl_lock); 2509 break; 2510 } 2511 case CTL_GET_OOA: { 2512 struct ctl_lun *lun; 2513 struct ctl_ooa *ooa_hdr; 2514 struct ctl_ooa_entry *entries; 2515 uint32_t cur_fill_num; 2516 2517 ooa_hdr = (struct ctl_ooa *)addr; 2518 2519 if ((ooa_hdr->alloc_len == 0) 2520 || (ooa_hdr->alloc_num == 0)) { 2521 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2522 "must be non-zero\n", __func__, 2523 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2524 retval = EINVAL; 2525 break; 2526 } 2527 2528 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2529 sizeof(struct ctl_ooa_entry))) { 2530 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2531 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2532 __func__, ooa_hdr->alloc_len, 2533 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2534 retval = EINVAL; 2535 break; 2536 } 2537 2538 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2539 if (entries == NULL) { 2540 printf("%s: could not allocate %d bytes for OOA " 2541 "dump\n", __func__, ooa_hdr->alloc_len); 2542 retval = ENOMEM; 2543 break; 2544 } 2545 2546 mtx_lock(&softc->ctl_lock); 2547 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2548 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2549 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2550 mtx_unlock(&softc->ctl_lock); 2551 free(entries, M_CTL); 2552 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2553 __func__, (uintmax_t)ooa_hdr->lun_num); 2554 retval = EINVAL; 2555 break; 2556 } 2557 2558 cur_fill_num = 0; 2559 2560 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2561 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2562 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2563 ooa_hdr, entries); 2564 if (retval != 0) 2565 break; 2566 } 2567 if (retval != 0) { 2568 mtx_unlock(&softc->ctl_lock); 2569 free(entries, M_CTL); 2570 break; 2571 } 2572 } else { 2573 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2574 2575 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2576 entries); 2577 } 2578 mtx_unlock(&softc->ctl_lock); 2579 2580 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2581 ooa_hdr->fill_len = ooa_hdr->fill_num * 2582 sizeof(struct ctl_ooa_entry); 2583 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2584 if (retval != 0) { 2585 printf("%s: error copying out %d bytes for OOA dump\n", 2586 __func__, ooa_hdr->fill_len); 2587 } 2588 2589 getbintime(&ooa_hdr->cur_bt); 2590 2591 if (cur_fill_num > ooa_hdr->alloc_num) { 2592 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2593 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2594 } else { 2595 ooa_hdr->dropped_num = 0; 2596 ooa_hdr->status = CTL_OOA_OK; 2597 } 2598 2599 free(entries, M_CTL); 2600 break; 2601 } 2602 case CTL_CHECK_OOA: { 2603 union ctl_io *io; 2604 struct ctl_lun *lun; 2605 struct ctl_ooa_info *ooa_info; 2606 2607 2608 ooa_info = (struct ctl_ooa_info *)addr; 2609 2610 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2611 ooa_info->status = CTL_OOA_INVALID_LUN; 2612 break; 2613 } 2614 mtx_lock(&softc->ctl_lock); 2615 lun = softc->ctl_luns[ooa_info->lun_id]; 2616 if (lun == NULL) { 2617 mtx_unlock(&softc->ctl_lock); 2618 ooa_info->status = CTL_OOA_INVALID_LUN; 2619 break; 2620 } 2621 mtx_lock(&lun->lun_lock); 2622 mtx_unlock(&softc->ctl_lock); 2623 ooa_info->num_entries = 0; 2624 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2625 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2626 &io->io_hdr, ooa_links)) { 2627 ooa_info->num_entries++; 2628 } 2629 mtx_unlock(&lun->lun_lock); 2630 2631 ooa_info->status = CTL_OOA_SUCCESS; 2632 2633 break; 2634 } 2635 case CTL_HARD_START: 2636 case CTL_HARD_STOP: { 2637 struct ctl_fe_ioctl_startstop_info ss_info; 2638 struct cfi_metatask *metatask; 2639 struct mtx hs_mtx; 2640 2641 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2642 2643 cv_init(&ss_info.sem, "hard start/stop cv" ); 2644 2645 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2646 if (metatask == NULL) { 2647 retval = ENOMEM; 2648 mtx_destroy(&hs_mtx); 2649 break; 2650 } 2651 2652 if (cmd == CTL_HARD_START) 2653 metatask->tasktype = CFI_TASK_STARTUP; 2654 else 2655 metatask->tasktype = CFI_TASK_SHUTDOWN; 2656 2657 metatask->callback = ctl_ioctl_hard_startstop_callback; 2658 metatask->callback_arg = &ss_info; 2659 2660 cfi_action(metatask); 2661 2662 /* Wait for the callback */ 2663 mtx_lock(&hs_mtx); 2664 cv_wait_sig(&ss_info.sem, &hs_mtx); 2665 mtx_unlock(&hs_mtx); 2666 2667 /* 2668 * All information has been copied from the metatask by the 2669 * time cv_broadcast() is called, so we free the metatask here. 2670 */ 2671 cfi_free_metatask(metatask); 2672 2673 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2674 2675 mtx_destroy(&hs_mtx); 2676 break; 2677 } 2678 case CTL_BBRREAD: { 2679 struct ctl_bbrread_info *bbr_info; 2680 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2681 struct mtx bbr_mtx; 2682 struct cfi_metatask *metatask; 2683 2684 bbr_info = (struct ctl_bbrread_info *)addr; 2685 2686 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2687 2688 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2689 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2690 2691 fe_bbr_info.bbr_info = bbr_info; 2692 fe_bbr_info.lock = &bbr_mtx; 2693 2694 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2695 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2696 2697 if (metatask == NULL) { 2698 mtx_destroy(&bbr_mtx); 2699 cv_destroy(&fe_bbr_info.sem); 2700 retval = ENOMEM; 2701 break; 2702 } 2703 metatask->tasktype = CFI_TASK_BBRREAD; 2704 metatask->callback = ctl_ioctl_bbrread_callback; 2705 metatask->callback_arg = &fe_bbr_info; 2706 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2707 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2708 metatask->taskinfo.bbrread.len = bbr_info->len; 2709 2710 cfi_action(metatask); 2711 2712 mtx_lock(&bbr_mtx); 2713 while (fe_bbr_info.wakeup_done == 0) 2714 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2715 mtx_unlock(&bbr_mtx); 2716 2717 bbr_info->status = metatask->status; 2718 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2719 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2720 memcpy(&bbr_info->sense_data, 2721 &metatask->taskinfo.bbrread.sense_data, 2722 ctl_min(sizeof(bbr_info->sense_data), 2723 sizeof(metatask->taskinfo.bbrread.sense_data))); 2724 2725 cfi_free_metatask(metatask); 2726 2727 mtx_destroy(&bbr_mtx); 2728 cv_destroy(&fe_bbr_info.sem); 2729 2730 break; 2731 } 2732 case CTL_DELAY_IO: { 2733 struct ctl_io_delay_info *delay_info; 2734#ifdef CTL_IO_DELAY 2735 struct ctl_lun *lun; 2736#endif /* CTL_IO_DELAY */ 2737 2738 delay_info = (struct ctl_io_delay_info *)addr; 2739 2740#ifdef CTL_IO_DELAY 2741 mtx_lock(&softc->ctl_lock); 2742 2743 if ((delay_info->lun_id > CTL_MAX_LUNS) 2744 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2745 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2746 } else { 2747 lun = softc->ctl_luns[delay_info->lun_id]; 2748 mtx_lock(&lun->lun_lock); 2749 2750 delay_info->status = CTL_DELAY_STATUS_OK; 2751 2752 switch (delay_info->delay_type) { 2753 case CTL_DELAY_TYPE_CONT: 2754 break; 2755 case CTL_DELAY_TYPE_ONESHOT: 2756 break; 2757 default: 2758 delay_info->status = 2759 CTL_DELAY_STATUS_INVALID_TYPE; 2760 break; 2761 } 2762 2763 switch (delay_info->delay_loc) { 2764 case CTL_DELAY_LOC_DATAMOVE: 2765 lun->delay_info.datamove_type = 2766 delay_info->delay_type; 2767 lun->delay_info.datamove_delay = 2768 delay_info->delay_secs; 2769 break; 2770 case CTL_DELAY_LOC_DONE: 2771 lun->delay_info.done_type = 2772 delay_info->delay_type; 2773 lun->delay_info.done_delay = 2774 delay_info->delay_secs; 2775 break; 2776 default: 2777 delay_info->status = 2778 CTL_DELAY_STATUS_INVALID_LOC; 2779 break; 2780 } 2781 mtx_unlock(&lun->lun_lock); 2782 } 2783 2784 mtx_unlock(&softc->ctl_lock); 2785#else 2786 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2787#endif /* CTL_IO_DELAY */ 2788 break; 2789 } 2790 case CTL_REALSYNC_SET: { 2791 int *syncstate; 2792 2793 syncstate = (int *)addr; 2794 2795 mtx_lock(&softc->ctl_lock); 2796 switch (*syncstate) { 2797 case 0: 2798 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2799 break; 2800 case 1: 2801 softc->flags |= CTL_FLAG_REAL_SYNC; 2802 break; 2803 default: 2804 retval = EINVAL; 2805 break; 2806 } 2807 mtx_unlock(&softc->ctl_lock); 2808 break; 2809 } 2810 case CTL_REALSYNC_GET: { 2811 int *syncstate; 2812 2813 syncstate = (int*)addr; 2814 2815 mtx_lock(&softc->ctl_lock); 2816 if (softc->flags & CTL_FLAG_REAL_SYNC) 2817 *syncstate = 1; 2818 else 2819 *syncstate = 0; 2820 mtx_unlock(&softc->ctl_lock); 2821 2822 break; 2823 } 2824 case CTL_SETSYNC: 2825 case CTL_GETSYNC: { 2826 struct ctl_sync_info *sync_info; 2827 struct ctl_lun *lun; 2828 2829 sync_info = (struct ctl_sync_info *)addr; 2830 2831 mtx_lock(&softc->ctl_lock); 2832 lun = softc->ctl_luns[sync_info->lun_id]; 2833 if (lun == NULL) { 2834 mtx_unlock(&softc->ctl_lock); 2835 sync_info->status = CTL_GS_SYNC_NO_LUN; 2836 } 2837 /* 2838 * Get or set the sync interval. We're not bounds checking 2839 * in the set case, hopefully the user won't do something 2840 * silly. 2841 */ 2842 mtx_lock(&lun->lun_lock); 2843 mtx_unlock(&softc->ctl_lock); 2844 if (cmd == CTL_GETSYNC) 2845 sync_info->sync_interval = lun->sync_interval; 2846 else 2847 lun->sync_interval = sync_info->sync_interval; 2848 mtx_unlock(&lun->lun_lock); 2849 2850 sync_info->status = CTL_GS_SYNC_OK; 2851 2852 break; 2853 } 2854 case CTL_GETSTATS: { 2855 struct ctl_stats *stats; 2856 struct ctl_lun *lun; 2857 int i; 2858 2859 stats = (struct ctl_stats *)addr; 2860 2861 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2862 stats->alloc_len) { 2863 stats->status = CTL_SS_NEED_MORE_SPACE; 2864 stats->num_luns = softc->num_luns; 2865 break; 2866 } 2867 /* 2868 * XXX KDM no locking here. If the LUN list changes, 2869 * things can blow up. 2870 */ 2871 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2872 i++, lun = STAILQ_NEXT(lun, links)) { 2873 retval = copyout(&lun->stats, &stats->lun_stats[i], 2874 sizeof(lun->stats)); 2875 if (retval != 0) 2876 break; 2877 } 2878 stats->num_luns = softc->num_luns; 2879 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2880 softc->num_luns; 2881 stats->status = CTL_SS_OK; 2882#ifdef CTL_TIME_IO 2883 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2884#else 2885 stats->flags = CTL_STATS_FLAG_NONE; 2886#endif 2887 getnanouptime(&stats->timestamp); 2888 break; 2889 } 2890 case CTL_ERROR_INJECT: { 2891 struct ctl_error_desc *err_desc, *new_err_desc; 2892 struct ctl_lun *lun; 2893 2894 err_desc = (struct ctl_error_desc *)addr; 2895 2896 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2897 M_WAITOK | M_ZERO); 2898 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2899 2900 mtx_lock(&softc->ctl_lock); 2901 lun = softc->ctl_luns[err_desc->lun_id]; 2902 if (lun == NULL) { 2903 mtx_unlock(&softc->ctl_lock); 2904 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2905 __func__, (uintmax_t)err_desc->lun_id); 2906 retval = EINVAL; 2907 break; 2908 } 2909 mtx_lock(&lun->lun_lock); 2910 mtx_unlock(&softc->ctl_lock); 2911 2912 /* 2913 * We could do some checking here to verify the validity 2914 * of the request, but given the complexity of error 2915 * injection requests, the checking logic would be fairly 2916 * complex. 2917 * 2918 * For now, if the request is invalid, it just won't get 2919 * executed and might get deleted. 2920 */ 2921 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2922 2923 /* 2924 * XXX KDM check to make sure the serial number is unique, 2925 * in case we somehow manage to wrap. That shouldn't 2926 * happen for a very long time, but it's the right thing to 2927 * do. 2928 */ 2929 new_err_desc->serial = lun->error_serial; 2930 err_desc->serial = lun->error_serial; 2931 lun->error_serial++; 2932 2933 mtx_unlock(&lun->lun_lock); 2934 break; 2935 } 2936 case CTL_ERROR_INJECT_DELETE: { 2937 struct ctl_error_desc *delete_desc, *desc, *desc2; 2938 struct ctl_lun *lun; 2939 int delete_done; 2940 2941 delete_desc = (struct ctl_error_desc *)addr; 2942 delete_done = 0; 2943 2944 mtx_lock(&softc->ctl_lock); 2945 lun = softc->ctl_luns[delete_desc->lun_id]; 2946 if (lun == NULL) { 2947 mtx_unlock(&softc->ctl_lock); 2948 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2949 __func__, (uintmax_t)delete_desc->lun_id); 2950 retval = EINVAL; 2951 break; 2952 } 2953 mtx_lock(&lun->lun_lock); 2954 mtx_unlock(&softc->ctl_lock); 2955 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2956 if (desc->serial != delete_desc->serial) 2957 continue; 2958 2959 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2960 links); 2961 free(desc, M_CTL); 2962 delete_done = 1; 2963 } 2964 mtx_unlock(&lun->lun_lock); 2965 if (delete_done == 0) { 2966 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2967 "error serial %ju on LUN %u\n", __func__, 2968 delete_desc->serial, delete_desc->lun_id); 2969 retval = EINVAL; 2970 break; 2971 } 2972 break; 2973 } 2974 case CTL_DUMP_STRUCTS: { 2975 int i, j, k, idx; 2976 struct ctl_port *port; 2977 struct ctl_frontend *fe; 2978 2979 mtx_lock(&softc->ctl_lock); 2980 printf("CTL Persistent Reservation information start:\n"); 2981 for (i = 0; i < CTL_MAX_LUNS; i++) { 2982 struct ctl_lun *lun; 2983 2984 lun = softc->ctl_luns[i]; 2985 2986 if ((lun == NULL) 2987 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2988 continue; 2989 2990 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2991 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2992 idx = j * CTL_MAX_INIT_PER_PORT + k; 2993 if (lun->per_res[idx].registered == 0) 2994 continue; 2995 printf(" LUN %d port %d iid %d key " 2996 "%#jx\n", i, j, k, 2997 (uintmax_t)scsi_8btou64( 2998 lun->per_res[idx].res_key.key)); 2999 } 3000 } 3001 } 3002 printf("CTL Persistent Reservation information end\n"); 3003 printf("CTL Ports:\n"); 3004 STAILQ_FOREACH(port, &softc->port_list, links) { 3005 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3006 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3007 port->frontend->name, port->port_type, 3008 port->physical_port, port->virtual_port, 3009 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3010 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3011 if (port->wwpn_iid[j].in_use == 0 && 3012 port->wwpn_iid[j].wwpn == 0 && 3013 port->wwpn_iid[j].name == NULL) 3014 continue; 3015 3016 printf(" iid %u use %d WWPN %#jx '%s'\n", 3017 j, port->wwpn_iid[j].in_use, 3018 (uintmax_t)port->wwpn_iid[j].wwpn, 3019 port->wwpn_iid[j].name); 3020 } 3021 } 3022 printf("CTL Port information end\n"); 3023 mtx_unlock(&softc->ctl_lock); 3024 /* 3025 * XXX KDM calling this without a lock. We'd likely want 3026 * to drop the lock before calling the frontend's dump 3027 * routine anyway. 3028 */ 3029 printf("CTL Frontends:\n"); 3030 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3031 printf(" Frontend '%s'\n", fe->name); 3032 if (fe->fe_dump != NULL) 3033 fe->fe_dump(); 3034 } 3035 printf("CTL Frontend information end\n"); 3036 break; 3037 } 3038 case CTL_LUN_REQ: { 3039 struct ctl_lun_req *lun_req; 3040 struct ctl_backend_driver *backend; 3041 3042 lun_req = (struct ctl_lun_req *)addr; 3043 3044 backend = ctl_backend_find(lun_req->backend); 3045 if (backend == NULL) { 3046 lun_req->status = CTL_LUN_ERROR; 3047 snprintf(lun_req->error_str, 3048 sizeof(lun_req->error_str), 3049 "Backend \"%s\" not found.", 3050 lun_req->backend); 3051 break; 3052 } 3053 if (lun_req->num_be_args > 0) { 3054 lun_req->kern_be_args = ctl_copyin_args( 3055 lun_req->num_be_args, 3056 lun_req->be_args, 3057 lun_req->error_str, 3058 sizeof(lun_req->error_str)); 3059 if (lun_req->kern_be_args == NULL) { 3060 lun_req->status = CTL_LUN_ERROR; 3061 break; 3062 } 3063 } 3064 3065 retval = backend->ioctl(dev, cmd, addr, flag, td); 3066 3067 if (lun_req->num_be_args > 0) { 3068 ctl_copyout_args(lun_req->num_be_args, 3069 lun_req->kern_be_args); 3070 ctl_free_args(lun_req->num_be_args, 3071 lun_req->kern_be_args); 3072 } 3073 break; 3074 } 3075 case CTL_LUN_LIST: { 3076 struct sbuf *sb; 3077 struct ctl_lun *lun; 3078 struct ctl_lun_list *list; 3079 struct ctl_option *opt; 3080 3081 list = (struct ctl_lun_list *)addr; 3082 3083 /* 3084 * Allocate a fixed length sbuf here, based on the length 3085 * of the user's buffer. We could allocate an auto-extending 3086 * buffer, and then tell the user how much larger our 3087 * amount of data is than his buffer, but that presents 3088 * some problems: 3089 * 3090 * 1. The sbuf(9) routines use a blocking malloc, and so 3091 * we can't hold a lock while calling them with an 3092 * auto-extending buffer. 3093 * 3094 * 2. There is not currently a LUN reference counting 3095 * mechanism, outside of outstanding transactions on 3096 * the LUN's OOA queue. So a LUN could go away on us 3097 * while we're getting the LUN number, backend-specific 3098 * information, etc. Thus, given the way things 3099 * currently work, we need to hold the CTL lock while 3100 * grabbing LUN information. 3101 * 3102 * So, from the user's standpoint, the best thing to do is 3103 * allocate what he thinks is a reasonable buffer length, 3104 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3105 * double the buffer length and try again. (And repeat 3106 * that until he succeeds.) 3107 */ 3108 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3109 if (sb == NULL) { 3110 list->status = CTL_LUN_LIST_ERROR; 3111 snprintf(list->error_str, sizeof(list->error_str), 3112 "Unable to allocate %d bytes for LUN list", 3113 list->alloc_len); 3114 break; 3115 } 3116 3117 sbuf_printf(sb, "<ctllunlist>\n"); 3118 3119 mtx_lock(&softc->ctl_lock); 3120 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3121 mtx_lock(&lun->lun_lock); 3122 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3123 (uintmax_t)lun->lun); 3124 3125 /* 3126 * Bail out as soon as we see that we've overfilled 3127 * the buffer. 3128 */ 3129 if (retval != 0) 3130 break; 3131 3132 retval = sbuf_printf(sb, "\t<backend_type>%s" 3133 "</backend_type>\n", 3134 (lun->backend == NULL) ? "none" : 3135 lun->backend->name); 3136 3137 if (retval != 0) 3138 break; 3139 3140 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3141 lun->be_lun->lun_type); 3142 3143 if (retval != 0) 3144 break; 3145 3146 if (lun->backend == NULL) { 3147 retval = sbuf_printf(sb, "</lun>\n"); 3148 if (retval != 0) 3149 break; 3150 continue; 3151 } 3152 3153 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3154 (lun->be_lun->maxlba > 0) ? 3155 lun->be_lun->maxlba + 1 : 0); 3156 3157 if (retval != 0) 3158 break; 3159 3160 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3161 lun->be_lun->blocksize); 3162 3163 if (retval != 0) 3164 break; 3165 3166 retval = sbuf_printf(sb, "\t<serial_number>"); 3167 3168 if (retval != 0) 3169 break; 3170 3171 retval = ctl_sbuf_printf_esc(sb, 3172 lun->be_lun->serial_num); 3173 3174 if (retval != 0) 3175 break; 3176 3177 retval = sbuf_printf(sb, "</serial_number>\n"); 3178 3179 if (retval != 0) 3180 break; 3181 3182 retval = sbuf_printf(sb, "\t<device_id>"); 3183 3184 if (retval != 0) 3185 break; 3186 3187 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3188 3189 if (retval != 0) 3190 break; 3191 3192 retval = sbuf_printf(sb, "</device_id>\n"); 3193 3194 if (retval != 0) 3195 break; 3196 3197 if (lun->backend->lun_info != NULL) { 3198 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3199 if (retval != 0) 3200 break; 3201 } 3202 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3203 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3204 opt->name, opt->value, opt->name); 3205 if (retval != 0) 3206 break; 3207 } 3208 3209 retval = sbuf_printf(sb, "</lun>\n"); 3210 3211 if (retval != 0) 3212 break; 3213 mtx_unlock(&lun->lun_lock); 3214 } 3215 if (lun != NULL) 3216 mtx_unlock(&lun->lun_lock); 3217 mtx_unlock(&softc->ctl_lock); 3218 3219 if ((retval != 0) 3220 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3221 retval = 0; 3222 sbuf_delete(sb); 3223 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3224 snprintf(list->error_str, sizeof(list->error_str), 3225 "Out of space, %d bytes is too small", 3226 list->alloc_len); 3227 break; 3228 } 3229 3230 sbuf_finish(sb); 3231 3232 retval = copyout(sbuf_data(sb), list->lun_xml, 3233 sbuf_len(sb) + 1); 3234 3235 list->fill_len = sbuf_len(sb) + 1; 3236 list->status = CTL_LUN_LIST_OK; 3237 sbuf_delete(sb); 3238 break; 3239 } 3240 case CTL_ISCSI: { 3241 struct ctl_iscsi *ci; 3242 struct ctl_frontend *fe; 3243 3244 ci = (struct ctl_iscsi *)addr; 3245 3246 fe = ctl_frontend_find("iscsi"); 3247 if (fe == NULL) { 3248 ci->status = CTL_ISCSI_ERROR; 3249 snprintf(ci->error_str, sizeof(ci->error_str), 3250 "Frontend \"iscsi\" not found."); 3251 break; 3252 } 3253 3254 retval = fe->ioctl(dev, cmd, addr, flag, td); 3255 break; 3256 } 3257 case CTL_PORT_REQ: { 3258 struct ctl_req *req; 3259 struct ctl_frontend *fe; 3260 3261 req = (struct ctl_req *)addr; 3262 3263 fe = ctl_frontend_find(req->driver); 3264 if (fe == NULL) { 3265 req->status = CTL_LUN_ERROR; 3266 snprintf(req->error_str, sizeof(req->error_str), 3267 "Frontend \"%s\" not found.", req->driver); 3268 break; 3269 } 3270 if (req->num_args > 0) { 3271 req->kern_args = ctl_copyin_args(req->num_args, 3272 req->args, req->error_str, sizeof(req->error_str)); 3273 if (req->kern_args == NULL) { 3274 req->status = CTL_LUN_ERROR; 3275 break; 3276 } 3277 } 3278 3279 retval = fe->ioctl(dev, cmd, addr, flag, td); 3280 3281 if (req->num_args > 0) { 3282 ctl_copyout_args(req->num_args, req->kern_args); 3283 ctl_free_args(req->num_args, req->kern_args); 3284 } 3285 break; 3286 } 3287 case CTL_PORT_LIST: { 3288 struct sbuf *sb; 3289 struct ctl_port *port; 3290 struct ctl_lun_list *list; 3291 struct ctl_option *opt; 3292 3293 list = (struct ctl_lun_list *)addr; 3294 3295 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3296 if (sb == NULL) { 3297 list->status = CTL_LUN_LIST_ERROR; 3298 snprintf(list->error_str, sizeof(list->error_str), 3299 "Unable to allocate %d bytes for LUN list", 3300 list->alloc_len); 3301 break; 3302 } 3303 3304 sbuf_printf(sb, "<ctlportlist>\n"); 3305 3306 mtx_lock(&softc->ctl_lock); 3307 STAILQ_FOREACH(port, &softc->port_list, links) { 3308 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3309 (uintmax_t)port->targ_port); 3310 3311 /* 3312 * Bail out as soon as we see that we've overfilled 3313 * the buffer. 3314 */ 3315 if (retval != 0) 3316 break; 3317 3318 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3319 "</frontend_type>\n", port->frontend->name); 3320 if (retval != 0) 3321 break; 3322 3323 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3324 port->port_type); 3325 if (retval != 0) 3326 break; 3327 3328 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3329 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3330 if (retval != 0) 3331 break; 3332 3333 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3334 port->port_name); 3335 if (retval != 0) 3336 break; 3337 3338 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3339 port->physical_port); 3340 if (retval != 0) 3341 break; 3342 3343 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3344 port->virtual_port); 3345 if (retval != 0) 3346 break; 3347 3348 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3349 (uintmax_t)port->wwnn); 3350 if (retval != 0) 3351 break; 3352 3353 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3354 (uintmax_t)port->wwpn); 3355 if (retval != 0) 3356 break; 3357 3358 if (port->port_info != NULL) { 3359 retval = port->port_info(port->onoff_arg, sb); 3360 if (retval != 0) 3361 break; 3362 } 3363 STAILQ_FOREACH(opt, &port->options, links) { 3364 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3365 opt->name, opt->value, opt->name); 3366 if (retval != 0) 3367 break; 3368 } 3369 3370 retval = sbuf_printf(sb, "</targ_port>\n"); 3371 if (retval != 0) 3372 break; 3373 } 3374 mtx_unlock(&softc->ctl_lock); 3375 3376 if ((retval != 0) 3377 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3378 retval = 0; 3379 sbuf_delete(sb); 3380 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3381 snprintf(list->error_str, sizeof(list->error_str), 3382 "Out of space, %d bytes is too small", 3383 list->alloc_len); 3384 break; 3385 } 3386 3387 sbuf_finish(sb); 3388 3389 retval = copyout(sbuf_data(sb), list->lun_xml, 3390 sbuf_len(sb) + 1); 3391 3392 list->fill_len = sbuf_len(sb) + 1; 3393 list->status = CTL_LUN_LIST_OK; 3394 sbuf_delete(sb); 3395 break; 3396 } 3397 default: { 3398 /* XXX KDM should we fix this? */ 3399#if 0 3400 struct ctl_backend_driver *backend; 3401 unsigned int type; 3402 int found; 3403 3404 found = 0; 3405 3406 /* 3407 * We encode the backend type as the ioctl type for backend 3408 * ioctls. So parse it out here, and then search for a 3409 * backend of this type. 3410 */ 3411 type = _IOC_TYPE(cmd); 3412 3413 STAILQ_FOREACH(backend, &softc->be_list, links) { 3414 if (backend->type == type) { 3415 found = 1; 3416 break; 3417 } 3418 } 3419 if (found == 0) { 3420 printf("ctl: unknown ioctl command %#lx or backend " 3421 "%d\n", cmd, type); 3422 retval = EINVAL; 3423 break; 3424 } 3425 retval = backend->ioctl(dev, cmd, addr, flag, td); 3426#endif 3427 retval = ENOTTY; 3428 break; 3429 } 3430 } 3431 return (retval); 3432} 3433 3434uint32_t 3435ctl_get_initindex(struct ctl_nexus *nexus) 3436{ 3437 if (nexus->targ_port < CTL_MAX_PORTS) 3438 return (nexus->initid.id + 3439 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3440 else 3441 return (nexus->initid.id + 3442 ((nexus->targ_port - CTL_MAX_PORTS) * 3443 CTL_MAX_INIT_PER_PORT)); 3444} 3445 3446uint32_t 3447ctl_get_resindex(struct ctl_nexus *nexus) 3448{ 3449 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3450} 3451 3452uint32_t 3453ctl_port_idx(int port_num) 3454{ 3455 if (port_num < CTL_MAX_PORTS) 3456 return(port_num); 3457 else 3458 return(port_num - CTL_MAX_PORTS); 3459} 3460 3461static uint32_t 3462ctl_map_lun(int port_num, uint32_t lun_id) 3463{ 3464 struct ctl_port *port; 3465 3466 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3467 if (port == NULL) 3468 return (UINT32_MAX); 3469 if (port->lun_map == NULL) 3470 return (lun_id); 3471 return (port->lun_map(port->targ_lun_arg, lun_id)); 3472} 3473 3474static uint32_t 3475ctl_map_lun_back(int port_num, uint32_t lun_id) 3476{ 3477 struct ctl_port *port; 3478 uint32_t i; 3479 3480 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3481 if (port->lun_map == NULL) 3482 return (lun_id); 3483 for (i = 0; i < CTL_MAX_LUNS; i++) { 3484 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3485 return (i); 3486 } 3487 return (UINT32_MAX); 3488} 3489 3490/* 3491 * Note: This only works for bitmask sizes that are at least 32 bits, and 3492 * that are a power of 2. 3493 */ 3494int 3495ctl_ffz(uint32_t *mask, uint32_t size) 3496{ 3497 uint32_t num_chunks, num_pieces; 3498 int i, j; 3499 3500 num_chunks = (size >> 5); 3501 if (num_chunks == 0) 3502 num_chunks++; 3503 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3504 3505 for (i = 0; i < num_chunks; i++) { 3506 for (j = 0; j < num_pieces; j++) { 3507 if ((mask[i] & (1 << j)) == 0) 3508 return ((i << 5) + j); 3509 } 3510 } 3511 3512 return (-1); 3513} 3514 3515int 3516ctl_set_mask(uint32_t *mask, uint32_t bit) 3517{ 3518 uint32_t chunk, piece; 3519 3520 chunk = bit >> 5; 3521 piece = bit % (sizeof(uint32_t) * 8); 3522 3523 if ((mask[chunk] & (1 << piece)) != 0) 3524 return (-1); 3525 else 3526 mask[chunk] |= (1 << piece); 3527 3528 return (0); 3529} 3530 3531int 3532ctl_clear_mask(uint32_t *mask, uint32_t bit) 3533{ 3534 uint32_t chunk, piece; 3535 3536 chunk = bit >> 5; 3537 piece = bit % (sizeof(uint32_t) * 8); 3538 3539 if ((mask[chunk] & (1 << piece)) == 0) 3540 return (-1); 3541 else 3542 mask[chunk] &= ~(1 << piece); 3543 3544 return (0); 3545} 3546 3547int 3548ctl_is_set(uint32_t *mask, uint32_t bit) 3549{ 3550 uint32_t chunk, piece; 3551 3552 chunk = bit >> 5; 3553 piece = bit % (sizeof(uint32_t) * 8); 3554 3555 if ((mask[chunk] & (1 << piece)) == 0) 3556 return (0); 3557 else 3558 return (1); 3559} 3560 3561#ifdef unused 3562/* 3563 * The bus, target and lun are optional, they can be filled in later. 3564 * can_wait is used to determine whether we can wait on the malloc or not. 3565 */ 3566union ctl_io* 3567ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3568 uint32_t targ_lun, int can_wait) 3569{ 3570 union ctl_io *io; 3571 3572 if (can_wait) 3573 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3574 else 3575 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3576 3577 if (io != NULL) { 3578 io->io_hdr.io_type = io_type; 3579 io->io_hdr.targ_port = targ_port; 3580 /* 3581 * XXX KDM this needs to change/go away. We need to move 3582 * to a preallocated pool of ctl_scsiio structures. 3583 */ 3584 io->io_hdr.nexus.targ_target.id = targ_target; 3585 io->io_hdr.nexus.targ_lun = targ_lun; 3586 } 3587 3588 return (io); 3589} 3590 3591void 3592ctl_kfree_io(union ctl_io *io) 3593{ 3594 free(io, M_CTL); 3595} 3596#endif /* unused */ 3597 3598/* 3599 * ctl_softc, pool_type, total_ctl_io are passed in. 3600 * npool is passed out. 3601 */ 3602int 3603ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3604 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3605{ 3606 uint32_t i; 3607 union ctl_io *cur_io, *next_io; 3608 struct ctl_io_pool *pool; 3609 int retval; 3610 3611 retval = 0; 3612 3613 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3614 M_NOWAIT | M_ZERO); 3615 if (pool == NULL) { 3616 retval = ENOMEM; 3617 goto bailout; 3618 } 3619 3620 pool->type = pool_type; 3621 pool->ctl_softc = ctl_softc; 3622 3623 mtx_lock(&ctl_softc->pool_lock); 3624 pool->id = ctl_softc->cur_pool_id++; 3625 mtx_unlock(&ctl_softc->pool_lock); 3626 3627 pool->flags = CTL_POOL_FLAG_NONE; 3628 pool->refcount = 1; /* Reference for validity. */ 3629 STAILQ_INIT(&pool->free_queue); 3630 3631 /* 3632 * XXX KDM other options here: 3633 * - allocate a page at a time 3634 * - allocate one big chunk of memory. 3635 * Page allocation might work well, but would take a little more 3636 * tracking. 3637 */ 3638 for (i = 0; i < total_ctl_io; i++) { 3639 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3640 M_NOWAIT); 3641 if (cur_io == NULL) { 3642 retval = ENOMEM; 3643 break; 3644 } 3645 cur_io->io_hdr.pool = pool; 3646 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3647 pool->total_ctl_io++; 3648 pool->free_ctl_io++; 3649 } 3650 3651 if (retval != 0) { 3652 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3653 cur_io != NULL; cur_io = next_io) { 3654 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3655 links); 3656 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3657 ctl_io_hdr, links); 3658 free(cur_io, M_CTLIO); 3659 } 3660 3661 free(pool, M_CTL); 3662 goto bailout; 3663 } 3664 mtx_lock(&ctl_softc->pool_lock); 3665 ctl_softc->num_pools++; 3666 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3667 /* 3668 * Increment our usage count if this is an external consumer, so we 3669 * can't get unloaded until the external consumer (most likely a 3670 * FETD) unloads and frees his pool. 3671 * 3672 * XXX KDM will this increment the caller's module use count, or 3673 * mine? 3674 */ 3675#if 0 3676 if ((pool_type != CTL_POOL_EMERGENCY) 3677 && (pool_type != CTL_POOL_INTERNAL) 3678 && (pool_type != CTL_POOL_4OTHERSC)) 3679 MOD_INC_USE_COUNT; 3680#endif 3681 3682 mtx_unlock(&ctl_softc->pool_lock); 3683 3684 *npool = pool; 3685 3686bailout: 3687 3688 return (retval); 3689} 3690 3691static int 3692ctl_pool_acquire(struct ctl_io_pool *pool) 3693{ 3694 3695 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3696 3697 if (pool->flags & CTL_POOL_FLAG_INVALID) 3698 return (EINVAL); 3699 3700 pool->refcount++; 3701 3702 return (0); 3703} 3704 3705static void 3706ctl_pool_release(struct ctl_io_pool *pool) 3707{ 3708 struct ctl_softc *ctl_softc = pool->ctl_softc; 3709 union ctl_io *io; 3710 3711 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3712 3713 if (--pool->refcount != 0) 3714 return; 3715 3716 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3717 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3718 links); 3719 free(io, M_CTLIO); 3720 } 3721 3722 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3723 ctl_softc->num_pools--; 3724 3725 /* 3726 * XXX KDM will this decrement the caller's usage count or mine? 3727 */ 3728#if 0 3729 if ((pool->type != CTL_POOL_EMERGENCY) 3730 && (pool->type != CTL_POOL_INTERNAL) 3731 && (pool->type != CTL_POOL_4OTHERSC)) 3732 MOD_DEC_USE_COUNT; 3733#endif 3734 3735 free(pool, M_CTL); 3736} 3737 3738void 3739ctl_pool_free(struct ctl_io_pool *pool) 3740{ 3741 struct ctl_softc *ctl_softc; 3742 3743 if (pool == NULL) 3744 return; 3745 3746 ctl_softc = pool->ctl_softc; 3747 mtx_lock(&ctl_softc->pool_lock); 3748 pool->flags |= CTL_POOL_FLAG_INVALID; 3749 ctl_pool_release(pool); 3750 mtx_unlock(&ctl_softc->pool_lock); 3751} 3752 3753/* 3754 * This routine does not block (except for spinlocks of course). 3755 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3756 * possible. 3757 */ 3758union ctl_io * 3759ctl_alloc_io(void *pool_ref) 3760{ 3761 union ctl_io *io; 3762 struct ctl_softc *ctl_softc; 3763 struct ctl_io_pool *pool, *npool; 3764 struct ctl_io_pool *emergency_pool; 3765 3766 pool = (struct ctl_io_pool *)pool_ref; 3767 3768 if (pool == NULL) { 3769 printf("%s: pool is NULL\n", __func__); 3770 return (NULL); 3771 } 3772 3773 emergency_pool = NULL; 3774 3775 ctl_softc = pool->ctl_softc; 3776 3777 mtx_lock(&ctl_softc->pool_lock); 3778 /* 3779 * First, try to get the io structure from the user's pool. 3780 */ 3781 if (ctl_pool_acquire(pool) == 0) { 3782 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3783 if (io != NULL) { 3784 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3785 pool->total_allocated++; 3786 pool->free_ctl_io--; 3787 mtx_unlock(&ctl_softc->pool_lock); 3788 return (io); 3789 } else 3790 ctl_pool_release(pool); 3791 } 3792 /* 3793 * If he doesn't have any io structures left, search for an 3794 * emergency pool and grab one from there. 3795 */ 3796 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3797 if (npool->type != CTL_POOL_EMERGENCY) 3798 continue; 3799 3800 if (ctl_pool_acquire(npool) != 0) 3801 continue; 3802 3803 emergency_pool = npool; 3804 3805 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3806 if (io != NULL) { 3807 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3808 npool->total_allocated++; 3809 npool->free_ctl_io--; 3810 mtx_unlock(&ctl_softc->pool_lock); 3811 return (io); 3812 } else 3813 ctl_pool_release(npool); 3814 } 3815 3816 /* Drop the spinlock before we malloc */ 3817 mtx_unlock(&ctl_softc->pool_lock); 3818 3819 /* 3820 * The emergency pool (if it exists) didn't have one, so try an 3821 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3822 */ 3823 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3824 if (io != NULL) { 3825 /* 3826 * If the emergency pool exists but is empty, add this 3827 * ctl_io to its list when it gets freed. 3828 */ 3829 if (emergency_pool != NULL) { 3830 mtx_lock(&ctl_softc->pool_lock); 3831 if (ctl_pool_acquire(emergency_pool) == 0) { 3832 io->io_hdr.pool = emergency_pool; 3833 emergency_pool->total_ctl_io++; 3834 /* 3835 * Need to bump this, otherwise 3836 * total_allocated and total_freed won't 3837 * match when we no longer have anything 3838 * outstanding. 3839 */ 3840 emergency_pool->total_allocated++; 3841 } 3842 mtx_unlock(&ctl_softc->pool_lock); 3843 } else 3844 io->io_hdr.pool = NULL; 3845 } 3846 3847 return (io); 3848} 3849 3850void 3851ctl_free_io(union ctl_io *io) 3852{ 3853 if (io == NULL) 3854 return; 3855 3856 /* 3857 * If this ctl_io has a pool, return it to that pool. 3858 */ 3859 if (io->io_hdr.pool != NULL) { 3860 struct ctl_io_pool *pool; 3861 3862 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3863 mtx_lock(&pool->ctl_softc->pool_lock); 3864 io->io_hdr.io_type = 0xff; 3865 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3866 pool->total_freed++; 3867 pool->free_ctl_io++; 3868 ctl_pool_release(pool); 3869 mtx_unlock(&pool->ctl_softc->pool_lock); 3870 } else { 3871 /* 3872 * Otherwise, just free it. We probably malloced it and 3873 * the emergency pool wasn't available. 3874 */ 3875 free(io, M_CTLIO); 3876 } 3877 3878} 3879 3880void 3881ctl_zero_io(union ctl_io *io) 3882{ 3883 void *pool_ref; 3884 3885 if (io == NULL) 3886 return; 3887 3888 /* 3889 * May need to preserve linked list pointers at some point too. 3890 */ 3891 pool_ref = io->io_hdr.pool; 3892 3893 memset(io, 0, sizeof(*io)); 3894 3895 io->io_hdr.pool = pool_ref; 3896} 3897 3898/* 3899 * This routine is currently used for internal copies of ctl_ios that need 3900 * to persist for some reason after we've already returned status to the 3901 * FETD. (Thus the flag set.) 3902 * 3903 * XXX XXX 3904 * Note that this makes a blind copy of all fields in the ctl_io, except 3905 * for the pool reference. This includes any memory that has been 3906 * allocated! That memory will no longer be valid after done has been 3907 * called, so this would be VERY DANGEROUS for command that actually does 3908 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3909 * start and stop commands, which don't transfer any data, so this is not a 3910 * problem. If it is used for anything else, the caller would also need to 3911 * allocate data buffer space and this routine would need to be modified to 3912 * copy the data buffer(s) as well. 3913 */ 3914void 3915ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3916{ 3917 void *pool_ref; 3918 3919 if ((src == NULL) 3920 || (dest == NULL)) 3921 return; 3922 3923 /* 3924 * May need to preserve linked list pointers at some point too. 3925 */ 3926 pool_ref = dest->io_hdr.pool; 3927 3928 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3929 3930 dest->io_hdr.pool = pool_ref; 3931 /* 3932 * We need to know that this is an internal copy, and doesn't need 3933 * to get passed back to the FETD that allocated it. 3934 */ 3935 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3936} 3937 3938#ifdef NEEDTOPORT 3939static void 3940ctl_update_power_subpage(struct copan_power_subpage *page) 3941{ 3942 int num_luns, num_partitions, config_type; 3943 struct ctl_softc *softc; 3944 cs_BOOL_t aor_present, shelf_50pct_power; 3945 cs_raidset_personality_t rs_type; 3946 int max_active_luns; 3947 3948 softc = control_softc; 3949 3950 /* subtract out the processor LUN */ 3951 num_luns = softc->num_luns - 1; 3952 /* 3953 * Default to 7 LUNs active, which was the only number we allowed 3954 * in the past. 3955 */ 3956 max_active_luns = 7; 3957 3958 num_partitions = config_GetRsPartitionInfo(); 3959 config_type = config_GetConfigType(); 3960 shelf_50pct_power = config_GetShelfPowerMode(); 3961 aor_present = config_IsAorRsPresent(); 3962 3963 rs_type = ddb_GetRsRaidType(1); 3964 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3965 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3966 EPRINT(0, "Unsupported RS type %d!", rs_type); 3967 } 3968 3969 3970 page->total_luns = num_luns; 3971 3972 switch (config_type) { 3973 case 40: 3974 /* 3975 * In a 40 drive configuration, it doesn't matter what DC 3976 * cards we have, whether we have AOR enabled or not, 3977 * partitioning or not, or what type of RAIDset we have. 3978 * In that scenario, we can power up every LUN we present 3979 * to the user. 3980 */ 3981 max_active_luns = num_luns; 3982 3983 break; 3984 case 64: 3985 if (shelf_50pct_power == CS_FALSE) { 3986 /* 25% power */ 3987 if (aor_present == CS_TRUE) { 3988 if (rs_type == 3989 CS_RAIDSET_PERSONALITY_RAID5) { 3990 max_active_luns = 7; 3991 } else if (rs_type == 3992 CS_RAIDSET_PERSONALITY_RAID1){ 3993 max_active_luns = 14; 3994 } else { 3995 /* XXX KDM now what?? */ 3996 } 3997 } else { 3998 if (rs_type == 3999 CS_RAIDSET_PERSONALITY_RAID5) { 4000 max_active_luns = 8; 4001 } else if (rs_type == 4002 CS_RAIDSET_PERSONALITY_RAID1){ 4003 max_active_luns = 16; 4004 } else { 4005 /* XXX KDM now what?? */ 4006 } 4007 } 4008 } else { 4009 /* 50% power */ 4010 /* 4011 * With 50% power in a 64 drive configuration, we 4012 * can power all LUNs we present. 4013 */ 4014 max_active_luns = num_luns; 4015 } 4016 break; 4017 case 112: 4018 if (shelf_50pct_power == CS_FALSE) { 4019 /* 25% power */ 4020 if (aor_present == CS_TRUE) { 4021 if (rs_type == 4022 CS_RAIDSET_PERSONALITY_RAID5) { 4023 max_active_luns = 7; 4024 } else if (rs_type == 4025 CS_RAIDSET_PERSONALITY_RAID1){ 4026 max_active_luns = 14; 4027 } else { 4028 /* XXX KDM now what?? */ 4029 } 4030 } else { 4031 if (rs_type == 4032 CS_RAIDSET_PERSONALITY_RAID5) { 4033 max_active_luns = 8; 4034 } else if (rs_type == 4035 CS_RAIDSET_PERSONALITY_RAID1){ 4036 max_active_luns = 16; 4037 } else { 4038 /* XXX KDM now what?? */ 4039 } 4040 } 4041 } else { 4042 /* 50% power */ 4043 if (aor_present == CS_TRUE) { 4044 if (rs_type == 4045 CS_RAIDSET_PERSONALITY_RAID5) { 4046 max_active_luns = 14; 4047 } else if (rs_type == 4048 CS_RAIDSET_PERSONALITY_RAID1){ 4049 /* 4050 * We're assuming here that disk 4051 * caching is enabled, and so we're 4052 * able to power up half of each 4053 * LUN, and cache all writes. 4054 */ 4055 max_active_luns = num_luns; 4056 } else { 4057 /* XXX KDM now what?? */ 4058 } 4059 } else { 4060 if (rs_type == 4061 CS_RAIDSET_PERSONALITY_RAID5) { 4062 max_active_luns = 15; 4063 } else if (rs_type == 4064 CS_RAIDSET_PERSONALITY_RAID1){ 4065 max_active_luns = 30; 4066 } else { 4067 /* XXX KDM now what?? */ 4068 } 4069 } 4070 } 4071 break; 4072 default: 4073 /* 4074 * In this case, we have an unknown configuration, so we 4075 * just use the default from above. 4076 */ 4077 break; 4078 } 4079 4080 page->max_active_luns = max_active_luns; 4081#if 0 4082 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4083 page->total_luns, page->max_active_luns); 4084#endif 4085} 4086#endif /* NEEDTOPORT */ 4087 4088/* 4089 * This routine could be used in the future to load default and/or saved 4090 * mode page parameters for a particuar lun. 4091 */ 4092static int 4093ctl_init_page_index(struct ctl_lun *lun) 4094{ 4095 int i; 4096 struct ctl_page_index *page_index; 4097 struct ctl_softc *softc; 4098 4099 memcpy(&lun->mode_pages.index, page_index_template, 4100 sizeof(page_index_template)); 4101 4102 softc = lun->ctl_softc; 4103 4104 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4105 4106 page_index = &lun->mode_pages.index[i]; 4107 /* 4108 * If this is a disk-only mode page, there's no point in 4109 * setting it up. For some pages, we have to have some 4110 * basic information about the disk in order to calculate the 4111 * mode page data. 4112 */ 4113 if ((lun->be_lun->lun_type != T_DIRECT) 4114 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4115 continue; 4116 4117 switch (page_index->page_code & SMPH_PC_MASK) { 4118 case SMS_FORMAT_DEVICE_PAGE: { 4119 struct scsi_format_page *format_page; 4120 4121 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4122 panic("subpage is incorrect!"); 4123 4124 /* 4125 * Sectors per track are set above. Bytes per 4126 * sector need to be set here on a per-LUN basis. 4127 */ 4128 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4129 &format_page_default, 4130 sizeof(format_page_default)); 4131 memcpy(&lun->mode_pages.format_page[ 4132 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4133 sizeof(format_page_changeable)); 4134 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4135 &format_page_default, 4136 sizeof(format_page_default)); 4137 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4138 &format_page_default, 4139 sizeof(format_page_default)); 4140 4141 format_page = &lun->mode_pages.format_page[ 4142 CTL_PAGE_CURRENT]; 4143 scsi_ulto2b(lun->be_lun->blocksize, 4144 format_page->bytes_per_sector); 4145 4146 format_page = &lun->mode_pages.format_page[ 4147 CTL_PAGE_DEFAULT]; 4148 scsi_ulto2b(lun->be_lun->blocksize, 4149 format_page->bytes_per_sector); 4150 4151 format_page = &lun->mode_pages.format_page[ 4152 CTL_PAGE_SAVED]; 4153 scsi_ulto2b(lun->be_lun->blocksize, 4154 format_page->bytes_per_sector); 4155 4156 page_index->page_data = 4157 (uint8_t *)lun->mode_pages.format_page; 4158 break; 4159 } 4160 case SMS_RIGID_DISK_PAGE: { 4161 struct scsi_rigid_disk_page *rigid_disk_page; 4162 uint32_t sectors_per_cylinder; 4163 uint64_t cylinders; 4164#ifndef __XSCALE__ 4165 int shift; 4166#endif /* !__XSCALE__ */ 4167 4168 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4169 panic("invalid subpage value %d", 4170 page_index->subpage); 4171 4172 /* 4173 * Rotation rate and sectors per track are set 4174 * above. We calculate the cylinders here based on 4175 * capacity. Due to the number of heads and 4176 * sectors per track we're using, smaller arrays 4177 * may turn out to have 0 cylinders. Linux and 4178 * FreeBSD don't pay attention to these mode pages 4179 * to figure out capacity, but Solaris does. It 4180 * seems to deal with 0 cylinders just fine, and 4181 * works out a fake geometry based on the capacity. 4182 */ 4183 memcpy(&lun->mode_pages.rigid_disk_page[ 4184 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4185 sizeof(rigid_disk_page_default)); 4186 memcpy(&lun->mode_pages.rigid_disk_page[ 4187 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4188 sizeof(rigid_disk_page_changeable)); 4189 memcpy(&lun->mode_pages.rigid_disk_page[ 4190 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4191 sizeof(rigid_disk_page_default)); 4192 memcpy(&lun->mode_pages.rigid_disk_page[ 4193 CTL_PAGE_SAVED], &rigid_disk_page_default, 4194 sizeof(rigid_disk_page_default)); 4195 4196 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4197 CTL_DEFAULT_HEADS; 4198 4199 /* 4200 * The divide method here will be more accurate, 4201 * probably, but results in floating point being 4202 * used in the kernel on i386 (__udivdi3()). On the 4203 * XScale, though, __udivdi3() is implemented in 4204 * software. 4205 * 4206 * The shift method for cylinder calculation is 4207 * accurate if sectors_per_cylinder is a power of 4208 * 2. Otherwise it might be slightly off -- you 4209 * might have a bit of a truncation problem. 4210 */ 4211#ifdef __XSCALE__ 4212 cylinders = (lun->be_lun->maxlba + 1) / 4213 sectors_per_cylinder; 4214#else 4215 for (shift = 31; shift > 0; shift--) { 4216 if (sectors_per_cylinder & (1 << shift)) 4217 break; 4218 } 4219 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4220#endif 4221 4222 /* 4223 * We've basically got 3 bytes, or 24 bits for the 4224 * cylinder size in the mode page. If we're over, 4225 * just round down to 2^24. 4226 */ 4227 if (cylinders > 0xffffff) 4228 cylinders = 0xffffff; 4229 4230 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4231 CTL_PAGE_CURRENT]; 4232 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4233 4234 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4235 CTL_PAGE_DEFAULT]; 4236 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4237 4238 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4239 CTL_PAGE_SAVED]; 4240 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4241 4242 page_index->page_data = 4243 (uint8_t *)lun->mode_pages.rigid_disk_page; 4244 break; 4245 } 4246 case SMS_CACHING_PAGE: { 4247 4248 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4249 panic("invalid subpage value %d", 4250 page_index->subpage); 4251 /* 4252 * Defaults should be okay here, no calculations 4253 * needed. 4254 */ 4255 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 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_DEFAULT], 4262 &caching_page_default, 4263 sizeof(caching_page_default)); 4264 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4265 &caching_page_default, 4266 sizeof(caching_page_default)); 4267 page_index->page_data = 4268 (uint8_t *)lun->mode_pages.caching_page; 4269 break; 4270 } 4271 case SMS_CONTROL_MODE_PAGE: { 4272 4273 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4274 panic("invalid subpage value %d", 4275 page_index->subpage); 4276 4277 /* 4278 * Defaults should be okay here, no calculations 4279 * needed. 4280 */ 4281 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4282 &control_page_default, 4283 sizeof(control_page_default)); 4284 memcpy(&lun->mode_pages.control_page[ 4285 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4286 sizeof(control_page_changeable)); 4287 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4288 &control_page_default, 4289 sizeof(control_page_default)); 4290 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4291 &control_page_default, 4292 sizeof(control_page_default)); 4293 page_index->page_data = 4294 (uint8_t *)lun->mode_pages.control_page; 4295 break; 4296 4297 } 4298 case SMS_VENDOR_SPECIFIC_PAGE:{ 4299 switch (page_index->subpage) { 4300 case PWR_SUBPAGE_CODE: { 4301 struct copan_power_subpage *current_page, 4302 *saved_page; 4303 4304 memcpy(&lun->mode_pages.power_subpage[ 4305 CTL_PAGE_CURRENT], 4306 &power_page_default, 4307 sizeof(power_page_default)); 4308 memcpy(&lun->mode_pages.power_subpage[ 4309 CTL_PAGE_CHANGEABLE], 4310 &power_page_changeable, 4311 sizeof(power_page_changeable)); 4312 memcpy(&lun->mode_pages.power_subpage[ 4313 CTL_PAGE_DEFAULT], 4314 &power_page_default, 4315 sizeof(power_page_default)); 4316 memcpy(&lun->mode_pages.power_subpage[ 4317 CTL_PAGE_SAVED], 4318 &power_page_default, 4319 sizeof(power_page_default)); 4320 page_index->page_data = 4321 (uint8_t *)lun->mode_pages.power_subpage; 4322 4323 current_page = (struct copan_power_subpage *) 4324 (page_index->page_data + 4325 (page_index->page_len * 4326 CTL_PAGE_CURRENT)); 4327 saved_page = (struct copan_power_subpage *) 4328 (page_index->page_data + 4329 (page_index->page_len * 4330 CTL_PAGE_SAVED)); 4331 break; 4332 } 4333 case APS_SUBPAGE_CODE: { 4334 struct copan_aps_subpage *current_page, 4335 *saved_page; 4336 4337 // This gets set multiple times but 4338 // it should always be the same. It's 4339 // only done during init so who cares. 4340 index_to_aps_page = i; 4341 4342 memcpy(&lun->mode_pages.aps_subpage[ 4343 CTL_PAGE_CURRENT], 4344 &aps_page_default, 4345 sizeof(aps_page_default)); 4346 memcpy(&lun->mode_pages.aps_subpage[ 4347 CTL_PAGE_CHANGEABLE], 4348 &aps_page_changeable, 4349 sizeof(aps_page_changeable)); 4350 memcpy(&lun->mode_pages.aps_subpage[ 4351 CTL_PAGE_DEFAULT], 4352 &aps_page_default, 4353 sizeof(aps_page_default)); 4354 memcpy(&lun->mode_pages.aps_subpage[ 4355 CTL_PAGE_SAVED], 4356 &aps_page_default, 4357 sizeof(aps_page_default)); 4358 page_index->page_data = 4359 (uint8_t *)lun->mode_pages.aps_subpage; 4360 4361 current_page = (struct copan_aps_subpage *) 4362 (page_index->page_data + 4363 (page_index->page_len * 4364 CTL_PAGE_CURRENT)); 4365 saved_page = (struct copan_aps_subpage *) 4366 (page_index->page_data + 4367 (page_index->page_len * 4368 CTL_PAGE_SAVED)); 4369 break; 4370 } 4371 case DBGCNF_SUBPAGE_CODE: { 4372 struct copan_debugconf_subpage *current_page, 4373 *saved_page; 4374 4375 memcpy(&lun->mode_pages.debugconf_subpage[ 4376 CTL_PAGE_CURRENT], 4377 &debugconf_page_default, 4378 sizeof(debugconf_page_default)); 4379 memcpy(&lun->mode_pages.debugconf_subpage[ 4380 CTL_PAGE_CHANGEABLE], 4381 &debugconf_page_changeable, 4382 sizeof(debugconf_page_changeable)); 4383 memcpy(&lun->mode_pages.debugconf_subpage[ 4384 CTL_PAGE_DEFAULT], 4385 &debugconf_page_default, 4386 sizeof(debugconf_page_default)); 4387 memcpy(&lun->mode_pages.debugconf_subpage[ 4388 CTL_PAGE_SAVED], 4389 &debugconf_page_default, 4390 sizeof(debugconf_page_default)); 4391 page_index->page_data = 4392 (uint8_t *)lun->mode_pages.debugconf_subpage; 4393 4394 current_page = (struct copan_debugconf_subpage *) 4395 (page_index->page_data + 4396 (page_index->page_len * 4397 CTL_PAGE_CURRENT)); 4398 saved_page = (struct copan_debugconf_subpage *) 4399 (page_index->page_data + 4400 (page_index->page_len * 4401 CTL_PAGE_SAVED)); 4402 break; 4403 } 4404 default: 4405 panic("invalid subpage value %d", 4406 page_index->subpage); 4407 break; 4408 } 4409 break; 4410 } 4411 default: 4412 panic("invalid page value %d", 4413 page_index->page_code & SMPH_PC_MASK); 4414 break; 4415 } 4416 } 4417 4418 return (CTL_RETVAL_COMPLETE); 4419} 4420 4421/* 4422 * LUN allocation. 4423 * 4424 * Requirements: 4425 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4426 * wants us to allocate the LUN and he can block. 4427 * - ctl_softc is always set 4428 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4429 * 4430 * Returns 0 for success, non-zero (errno) for failure. 4431 */ 4432static int 4433ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4434 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4435{ 4436 struct ctl_lun *nlun, *lun; 4437 struct ctl_port *port; 4438 struct scsi_vpd_id_descriptor *desc; 4439 struct scsi_vpd_id_t10 *t10id; 4440 const char *eui, *naa, *scsiname, *vendor; 4441 int lun_number, i, lun_malloced; 4442 int devidlen, idlen1, idlen2 = 0, len; 4443 4444 if (be_lun == NULL) 4445 return (EINVAL); 4446 4447 /* 4448 * We currently only support Direct Access or Processor LUN types. 4449 */ 4450 switch (be_lun->lun_type) { 4451 case T_DIRECT: 4452 break; 4453 case T_PROCESSOR: 4454 break; 4455 case T_SEQUENTIAL: 4456 case T_CHANGER: 4457 default: 4458 be_lun->lun_config_status(be_lun->be_lun, 4459 CTL_LUN_CONFIG_FAILURE); 4460 break; 4461 } 4462 if (ctl_lun == NULL) { 4463 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4464 lun_malloced = 1; 4465 } else { 4466 lun_malloced = 0; 4467 lun = ctl_lun; 4468 } 4469 4470 memset(lun, 0, sizeof(*lun)); 4471 if (lun_malloced) 4472 lun->flags = CTL_LUN_MALLOCED; 4473 4474 /* Generate LUN ID. */ 4475 devidlen = max(CTL_DEVID_MIN_LEN, 4476 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4477 idlen1 = sizeof(*t10id) + devidlen; 4478 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4479 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4480 if (scsiname != NULL) { 4481 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4482 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4483 } 4484 eui = ctl_get_opt(&be_lun->options, "eui"); 4485 if (eui != NULL) { 4486 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4487 } 4488 naa = ctl_get_opt(&be_lun->options, "naa"); 4489 if (naa != NULL) { 4490 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4491 } 4492 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4493 M_CTL, M_WAITOK | M_ZERO); 4494 lun->lun_devid->len = len; 4495 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4496 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4497 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4498 desc->length = idlen1; 4499 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4500 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4501 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4502 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4503 } else { 4504 strncpy(t10id->vendor, vendor, 4505 min(sizeof(t10id->vendor), strlen(vendor))); 4506 } 4507 strncpy((char *)t10id->vendor_spec_id, 4508 (char *)be_lun->device_id, devidlen); 4509 if (scsiname != NULL) { 4510 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4511 desc->length); 4512 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4513 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4514 SVPD_ID_TYPE_SCSI_NAME; 4515 desc->length = idlen2; 4516 strlcpy(desc->identifier, scsiname, idlen2); 4517 } 4518 if (eui != NULL) { 4519 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4520 desc->length); 4521 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4522 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4523 SVPD_ID_TYPE_EUI64; 4524 desc->length = 8; 4525 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4526 } 4527 if (naa != NULL) { 4528 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4529 desc->length); 4530 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4531 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4532 SVPD_ID_TYPE_NAA; 4533 desc->length = 8; 4534 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4535 } 4536 4537 mtx_lock(&ctl_softc->ctl_lock); 4538 /* 4539 * See if the caller requested a particular LUN number. If so, see 4540 * if it is available. Otherwise, allocate the first available LUN. 4541 */ 4542 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4543 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4544 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4545 mtx_unlock(&ctl_softc->ctl_lock); 4546 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4547 printf("ctl: requested LUN ID %d is higher " 4548 "than CTL_MAX_LUNS - 1 (%d)\n", 4549 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4550 } else { 4551 /* 4552 * XXX KDM return an error, or just assign 4553 * another LUN ID in this case?? 4554 */ 4555 printf("ctl: requested LUN ID %d is already " 4556 "in use\n", be_lun->req_lun_id); 4557 } 4558 if (lun->flags & CTL_LUN_MALLOCED) 4559 free(lun, M_CTL); 4560 be_lun->lun_config_status(be_lun->be_lun, 4561 CTL_LUN_CONFIG_FAILURE); 4562 return (ENOSPC); 4563 } 4564 lun_number = be_lun->req_lun_id; 4565 } else { 4566 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4567 if (lun_number == -1) { 4568 mtx_unlock(&ctl_softc->ctl_lock); 4569 printf("ctl: can't allocate LUN on target %ju, out of " 4570 "LUNs\n", (uintmax_t)target_id.id); 4571 if (lun->flags & CTL_LUN_MALLOCED) 4572 free(lun, M_CTL); 4573 be_lun->lun_config_status(be_lun->be_lun, 4574 CTL_LUN_CONFIG_FAILURE); 4575 return (ENOSPC); 4576 } 4577 } 4578 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4579 4580 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4581 lun->target = target_id; 4582 lun->lun = lun_number; 4583 lun->be_lun = be_lun; 4584 /* 4585 * The processor LUN is always enabled. Disk LUNs come on line 4586 * disabled, and must be enabled by the backend. 4587 */ 4588 lun->flags |= CTL_LUN_DISABLED; 4589 lun->backend = be_lun->be; 4590 be_lun->ctl_lun = lun; 4591 be_lun->lun_id = lun_number; 4592 atomic_add_int(&be_lun->be->num_luns, 1); 4593 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4594 lun->flags |= CTL_LUN_STOPPED; 4595 4596 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4597 lun->flags |= CTL_LUN_INOPERABLE; 4598 4599 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4600 lun->flags |= CTL_LUN_PRIMARY_SC; 4601 4602 lun->ctl_softc = ctl_softc; 4603 TAILQ_INIT(&lun->ooa_queue); 4604 TAILQ_INIT(&lun->blocked_queue); 4605 STAILQ_INIT(&lun->error_list); 4606 ctl_tpc_lun_init(lun); 4607 4608 /* 4609 * Initialize the mode page index. 4610 */ 4611 ctl_init_page_index(lun); 4612 4613 /* 4614 * Set the poweron UA for all initiators on this LUN only. 4615 */ 4616 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4617 lun->pending_ua[i] = CTL_UA_POWERON; 4618 4619 /* 4620 * Now, before we insert this lun on the lun list, set the lun 4621 * inventory changed UA for all other luns. 4622 */ 4623 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4624 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4625 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4626 } 4627 } 4628 4629 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4630 4631 ctl_softc->ctl_luns[lun_number] = lun; 4632 4633 ctl_softc->num_luns++; 4634 4635 /* Setup statistics gathering */ 4636 lun->stats.device_type = be_lun->lun_type; 4637 lun->stats.lun_number = lun_number; 4638 if (lun->stats.device_type == T_DIRECT) 4639 lun->stats.blocksize = be_lun->blocksize; 4640 else 4641 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4642 for (i = 0;i < CTL_MAX_PORTS;i++) 4643 lun->stats.ports[i].targ_port = i; 4644 4645 mtx_unlock(&ctl_softc->ctl_lock); 4646 4647 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4648 4649 /* 4650 * Run through each registered FETD and bring it online if it isn't 4651 * already. Enable the target ID if it hasn't been enabled, and 4652 * enable this particular LUN. 4653 */ 4654 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4655 int retval; 4656 4657 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4658 if (retval != 0) { 4659 printf("ctl_alloc_lun: FETD %s port %d returned error " 4660 "%d for lun_enable on target %ju lun %d\n", 4661 port->port_name, port->targ_port, retval, 4662 (uintmax_t)target_id.id, lun_number); 4663 } else 4664 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4665 } 4666 return (0); 4667} 4668 4669/* 4670 * Delete a LUN. 4671 * Assumptions: 4672 * - LUN has already been marked invalid and any pending I/O has been taken 4673 * care of. 4674 */ 4675static int 4676ctl_free_lun(struct ctl_lun *lun) 4677{ 4678 struct ctl_softc *softc; 4679#if 0 4680 struct ctl_port *port; 4681#endif 4682 struct ctl_lun *nlun; 4683 int i; 4684 4685 softc = lun->ctl_softc; 4686 4687 mtx_assert(&softc->ctl_lock, MA_OWNED); 4688 4689 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4690 4691 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4692 4693 softc->ctl_luns[lun->lun] = NULL; 4694 4695 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4696 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4697 4698 softc->num_luns--; 4699 4700 /* 4701 * XXX KDM this scheme only works for a single target/multiple LUN 4702 * setup. It needs to be revamped for a multiple target scheme. 4703 * 4704 * XXX KDM this results in port->lun_disable() getting called twice, 4705 * once when ctl_disable_lun() is called, and a second time here. 4706 * We really need to re-think the LUN disable semantics. There 4707 * should probably be several steps/levels to LUN removal: 4708 * - disable 4709 * - invalidate 4710 * - free 4711 * 4712 * Right now we only have a disable method when communicating to 4713 * the front end ports, at least for individual LUNs. 4714 */ 4715#if 0 4716 STAILQ_FOREACH(port, &softc->port_list, links) { 4717 int retval; 4718 4719 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4720 lun->lun); 4721 if (retval != 0) { 4722 printf("ctl_free_lun: FETD %s port %d returned error " 4723 "%d for lun_disable on target %ju lun %jd\n", 4724 port->port_name, port->targ_port, retval, 4725 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4726 } 4727 4728 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4729 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4730 4731 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4732 if (retval != 0) { 4733 printf("ctl_free_lun: FETD %s port %d " 4734 "returned error %d for targ_disable on " 4735 "target %ju\n", port->port_name, 4736 port->targ_port, retval, 4737 (uintmax_t)lun->target.id); 4738 } else 4739 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4740 4741 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4742 continue; 4743 4744#if 0 4745 port->port_offline(port->onoff_arg); 4746 port->status &= ~CTL_PORT_STATUS_ONLINE; 4747#endif 4748 } 4749 } 4750#endif 4751 4752 /* 4753 * Tell the backend to free resources, if this LUN has a backend. 4754 */ 4755 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4756 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4757 4758 ctl_tpc_lun_shutdown(lun); 4759 mtx_destroy(&lun->lun_lock); 4760 free(lun->lun_devid, M_CTL); 4761 if (lun->flags & CTL_LUN_MALLOCED) 4762 free(lun, M_CTL); 4763 4764 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4765 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4766 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4767 } 4768 } 4769 4770 return (0); 4771} 4772 4773static void 4774ctl_create_lun(struct ctl_be_lun *be_lun) 4775{ 4776 struct ctl_softc *ctl_softc; 4777 4778 ctl_softc = control_softc; 4779 4780 /* 4781 * ctl_alloc_lun() should handle all potential failure cases. 4782 */ 4783 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4784} 4785 4786int 4787ctl_add_lun(struct ctl_be_lun *be_lun) 4788{ 4789 struct ctl_softc *ctl_softc = control_softc; 4790 4791 mtx_lock(&ctl_softc->ctl_lock); 4792 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4793 mtx_unlock(&ctl_softc->ctl_lock); 4794 wakeup(&ctl_softc->pending_lun_queue); 4795 4796 return (0); 4797} 4798 4799int 4800ctl_enable_lun(struct ctl_be_lun *be_lun) 4801{ 4802 struct ctl_softc *ctl_softc; 4803 struct ctl_port *port, *nport; 4804 struct ctl_lun *lun; 4805 int retval; 4806 4807 ctl_softc = control_softc; 4808 4809 lun = (struct ctl_lun *)be_lun->ctl_lun; 4810 4811 mtx_lock(&ctl_softc->ctl_lock); 4812 mtx_lock(&lun->lun_lock); 4813 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4814 /* 4815 * eh? Why did we get called if the LUN is already 4816 * enabled? 4817 */ 4818 mtx_unlock(&lun->lun_lock); 4819 mtx_unlock(&ctl_softc->ctl_lock); 4820 return (0); 4821 } 4822 lun->flags &= ~CTL_LUN_DISABLED; 4823 mtx_unlock(&lun->lun_lock); 4824 4825 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4826 nport = STAILQ_NEXT(port, links); 4827 4828 /* 4829 * Drop the lock while we call the FETD's enable routine. 4830 * This can lead to a callback into CTL (at least in the 4831 * case of the internal initiator frontend. 4832 */ 4833 mtx_unlock(&ctl_softc->ctl_lock); 4834 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4835 mtx_lock(&ctl_softc->ctl_lock); 4836 if (retval != 0) { 4837 printf("%s: FETD %s port %d returned error " 4838 "%d for lun_enable on target %ju lun %jd\n", 4839 __func__, port->port_name, port->targ_port, retval, 4840 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4841 } 4842#if 0 4843 else { 4844 /* NOTE: TODO: why does lun enable affect port status? */ 4845 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4846 } 4847#endif 4848 } 4849 4850 mtx_unlock(&ctl_softc->ctl_lock); 4851 4852 return (0); 4853} 4854 4855int 4856ctl_disable_lun(struct ctl_be_lun *be_lun) 4857{ 4858 struct ctl_softc *ctl_softc; 4859 struct ctl_port *port; 4860 struct ctl_lun *lun; 4861 int retval; 4862 4863 ctl_softc = control_softc; 4864 4865 lun = (struct ctl_lun *)be_lun->ctl_lun; 4866 4867 mtx_lock(&ctl_softc->ctl_lock); 4868 mtx_lock(&lun->lun_lock); 4869 if (lun->flags & CTL_LUN_DISABLED) { 4870 mtx_unlock(&lun->lun_lock); 4871 mtx_unlock(&ctl_softc->ctl_lock); 4872 return (0); 4873 } 4874 lun->flags |= CTL_LUN_DISABLED; 4875 mtx_unlock(&lun->lun_lock); 4876 4877 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4878 mtx_unlock(&ctl_softc->ctl_lock); 4879 /* 4880 * Drop the lock before we call the frontend's disable 4881 * routine, to avoid lock order reversals. 4882 * 4883 * XXX KDM what happens if the frontend list changes while 4884 * we're traversing it? It's unlikely, but should be handled. 4885 */ 4886 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4887 lun->lun); 4888 mtx_lock(&ctl_softc->ctl_lock); 4889 if (retval != 0) { 4890 printf("ctl_alloc_lun: FETD %s port %d returned error " 4891 "%d for lun_disable on target %ju lun %jd\n", 4892 port->port_name, port->targ_port, retval, 4893 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4894 } 4895 } 4896 4897 mtx_unlock(&ctl_softc->ctl_lock); 4898 4899 return (0); 4900} 4901 4902int 4903ctl_start_lun(struct ctl_be_lun *be_lun) 4904{ 4905 struct ctl_softc *ctl_softc; 4906 struct ctl_lun *lun; 4907 4908 ctl_softc = control_softc; 4909 4910 lun = (struct ctl_lun *)be_lun->ctl_lun; 4911 4912 mtx_lock(&lun->lun_lock); 4913 lun->flags &= ~CTL_LUN_STOPPED; 4914 mtx_unlock(&lun->lun_lock); 4915 4916 return (0); 4917} 4918 4919int 4920ctl_stop_lun(struct ctl_be_lun *be_lun) 4921{ 4922 struct ctl_softc *ctl_softc; 4923 struct ctl_lun *lun; 4924 4925 ctl_softc = control_softc; 4926 4927 lun = (struct ctl_lun *)be_lun->ctl_lun; 4928 4929 mtx_lock(&lun->lun_lock); 4930 lun->flags |= CTL_LUN_STOPPED; 4931 mtx_unlock(&lun->lun_lock); 4932 4933 return (0); 4934} 4935 4936int 4937ctl_lun_offline(struct ctl_be_lun *be_lun) 4938{ 4939 struct ctl_softc *ctl_softc; 4940 struct ctl_lun *lun; 4941 4942 ctl_softc = control_softc; 4943 4944 lun = (struct ctl_lun *)be_lun->ctl_lun; 4945 4946 mtx_lock(&lun->lun_lock); 4947 lun->flags |= CTL_LUN_OFFLINE; 4948 mtx_unlock(&lun->lun_lock); 4949 4950 return (0); 4951} 4952 4953int 4954ctl_lun_online(struct ctl_be_lun *be_lun) 4955{ 4956 struct ctl_softc *ctl_softc; 4957 struct ctl_lun *lun; 4958 4959 ctl_softc = control_softc; 4960 4961 lun = (struct ctl_lun *)be_lun->ctl_lun; 4962 4963 mtx_lock(&lun->lun_lock); 4964 lun->flags &= ~CTL_LUN_OFFLINE; 4965 mtx_unlock(&lun->lun_lock); 4966 4967 return (0); 4968} 4969 4970int 4971ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4972{ 4973 struct ctl_softc *ctl_softc; 4974 struct ctl_lun *lun; 4975 4976 ctl_softc = control_softc; 4977 4978 lun = (struct ctl_lun *)be_lun->ctl_lun; 4979 4980 mtx_lock(&lun->lun_lock); 4981 4982 /* 4983 * The LUN needs to be disabled before it can be marked invalid. 4984 */ 4985 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4986 mtx_unlock(&lun->lun_lock); 4987 return (-1); 4988 } 4989 /* 4990 * Mark the LUN invalid. 4991 */ 4992 lun->flags |= CTL_LUN_INVALID; 4993 4994 /* 4995 * If there is nothing in the OOA queue, go ahead and free the LUN. 4996 * If we have something in the OOA queue, we'll free it when the 4997 * last I/O completes. 4998 */ 4999 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5000 mtx_unlock(&lun->lun_lock); 5001 mtx_lock(&ctl_softc->ctl_lock); 5002 ctl_free_lun(lun); 5003 mtx_unlock(&ctl_softc->ctl_lock); 5004 } else 5005 mtx_unlock(&lun->lun_lock); 5006 5007 return (0); 5008} 5009 5010int 5011ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5012{ 5013 struct ctl_softc *ctl_softc; 5014 struct ctl_lun *lun; 5015 5016 ctl_softc = control_softc; 5017 lun = (struct ctl_lun *)be_lun->ctl_lun; 5018 5019 mtx_lock(&lun->lun_lock); 5020 lun->flags |= CTL_LUN_INOPERABLE; 5021 mtx_unlock(&lun->lun_lock); 5022 5023 return (0); 5024} 5025 5026int 5027ctl_lun_operable(struct ctl_be_lun *be_lun) 5028{ 5029 struct ctl_softc *ctl_softc; 5030 struct ctl_lun *lun; 5031 5032 ctl_softc = control_softc; 5033 lun = (struct ctl_lun *)be_lun->ctl_lun; 5034 5035 mtx_lock(&lun->lun_lock); 5036 lun->flags &= ~CTL_LUN_INOPERABLE; 5037 mtx_unlock(&lun->lun_lock); 5038 5039 return (0); 5040} 5041 5042int 5043ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5044 int lock) 5045{ 5046 struct ctl_softc *softc; 5047 struct ctl_lun *lun; 5048 struct copan_aps_subpage *current_sp; 5049 struct ctl_page_index *page_index; 5050 int i; 5051 5052 softc = control_softc; 5053 5054 mtx_lock(&softc->ctl_lock); 5055 5056 lun = (struct ctl_lun *)be_lun->ctl_lun; 5057 mtx_lock(&lun->lun_lock); 5058 5059 page_index = NULL; 5060 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5061 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5062 APS_PAGE_CODE) 5063 continue; 5064 5065 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5066 continue; 5067 page_index = &lun->mode_pages.index[i]; 5068 } 5069 5070 if (page_index == NULL) { 5071 mtx_unlock(&lun->lun_lock); 5072 mtx_unlock(&softc->ctl_lock); 5073 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5074 (uintmax_t)lun->lun); 5075 return (1); 5076 } 5077#if 0 5078 if ((softc->aps_locked_lun != 0) 5079 && (softc->aps_locked_lun != lun->lun)) { 5080 printf("%s: attempt to lock LUN %llu when %llu is already " 5081 "locked\n"); 5082 mtx_unlock(&lun->lun_lock); 5083 mtx_unlock(&softc->ctl_lock); 5084 return (1); 5085 } 5086#endif 5087 5088 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5089 (page_index->page_len * CTL_PAGE_CURRENT)); 5090 5091 if (lock != 0) { 5092 current_sp->lock_active = APS_LOCK_ACTIVE; 5093 softc->aps_locked_lun = lun->lun; 5094 } else { 5095 current_sp->lock_active = 0; 5096 softc->aps_locked_lun = 0; 5097 } 5098 5099 5100 /* 5101 * If we're in HA mode, try to send the lock message to the other 5102 * side. 5103 */ 5104 if (ctl_is_single == 0) { 5105 int isc_retval; 5106 union ctl_ha_msg lock_msg; 5107 5108 lock_msg.hdr.nexus = *nexus; 5109 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5110 if (lock != 0) 5111 lock_msg.aps.lock_flag = 1; 5112 else 5113 lock_msg.aps.lock_flag = 0; 5114 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5115 sizeof(lock_msg), 0); 5116 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5117 printf("%s: APS (lock=%d) error returned from " 5118 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5119 mtx_unlock(&lun->lun_lock); 5120 mtx_unlock(&softc->ctl_lock); 5121 return (1); 5122 } 5123 } 5124 5125 mtx_unlock(&lun->lun_lock); 5126 mtx_unlock(&softc->ctl_lock); 5127 5128 return (0); 5129} 5130 5131void 5132ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5133{ 5134 struct ctl_lun *lun; 5135 struct ctl_softc *softc; 5136 int i; 5137 5138 softc = control_softc; 5139 5140 lun = (struct ctl_lun *)be_lun->ctl_lun; 5141 5142 mtx_lock(&lun->lun_lock); 5143 5144 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5145 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5146 5147 mtx_unlock(&lun->lun_lock); 5148} 5149 5150/* 5151 * Backend "memory move is complete" callback for requests that never 5152 * make it down to say RAIDCore's configuration code. 5153 */ 5154int 5155ctl_config_move_done(union ctl_io *io) 5156{ 5157 int retval; 5158 5159 retval = CTL_RETVAL_COMPLETE; 5160 5161 5162 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5163 /* 5164 * XXX KDM this shouldn't happen, but what if it does? 5165 */ 5166 if (io->io_hdr.io_type != CTL_IO_SCSI) 5167 panic("I/O type isn't CTL_IO_SCSI!"); 5168 5169 if ((io->io_hdr.port_status == 0) 5170 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5171 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5172 io->io_hdr.status = CTL_SUCCESS; 5173 else if ((io->io_hdr.port_status != 0) 5174 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5175 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5176 /* 5177 * For hardware error sense keys, the sense key 5178 * specific value is defined to be a retry count, 5179 * but we use it to pass back an internal FETD 5180 * error code. XXX KDM Hopefully the FETD is only 5181 * using 16 bits for an error code, since that's 5182 * all the space we have in the sks field. 5183 */ 5184 ctl_set_internal_failure(&io->scsiio, 5185 /*sks_valid*/ 1, 5186 /*retry_count*/ 5187 io->io_hdr.port_status); 5188 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5189 free(io->scsiio.kern_data_ptr, M_CTL); 5190 ctl_done(io); 5191 goto bailout; 5192 } 5193 5194 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5195 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5196 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5197 /* 5198 * XXX KDM just assuming a single pointer here, and not a 5199 * S/G list. If we start using S/G lists for config data, 5200 * we'll need to know how to clean them up here as well. 5201 */ 5202 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5203 free(io->scsiio.kern_data_ptr, M_CTL); 5204 /* Hopefully the user has already set the status... */ 5205 ctl_done(io); 5206 } else { 5207 /* 5208 * XXX KDM now we need to continue data movement. Some 5209 * options: 5210 * - call ctl_scsiio() again? We don't do this for data 5211 * writes, because for those at least we know ahead of 5212 * time where the write will go and how long it is. For 5213 * config writes, though, that information is largely 5214 * contained within the write itself, thus we need to 5215 * parse out the data again. 5216 * 5217 * - Call some other function once the data is in? 5218 */ 5219 5220 /* 5221 * XXX KDM call ctl_scsiio() again for now, and check flag 5222 * bits to see whether we're allocated or not. 5223 */ 5224 retval = ctl_scsiio(&io->scsiio); 5225 } 5226bailout: 5227 return (retval); 5228} 5229 5230/* 5231 * This gets called by a backend driver when it is done with a 5232 * data_submit method. 5233 */ 5234void 5235ctl_data_submit_done(union ctl_io *io) 5236{ 5237 /* 5238 * If the IO_CONT flag is set, we need to call the supplied 5239 * function to continue processing the I/O, instead of completing 5240 * the I/O just yet. 5241 * 5242 * If there is an error, though, we don't want to keep processing. 5243 * Instead, just send status back to the initiator. 5244 */ 5245 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5246 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5247 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5248 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5249 io->scsiio.io_cont(io); 5250 return; 5251 } 5252 ctl_done(io); 5253} 5254 5255/* 5256 * This gets called by a backend driver when it is done with a 5257 * configuration write. 5258 */ 5259void 5260ctl_config_write_done(union ctl_io *io) 5261{ 5262 /* 5263 * If the IO_CONT flag is set, we need to call the supplied 5264 * function to continue processing the I/O, instead of completing 5265 * the I/O just yet. 5266 * 5267 * If there is an error, though, we don't want to keep processing. 5268 * Instead, just send status back to the initiator. 5269 */ 5270 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5271 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5272 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5273 io->scsiio.io_cont(io); 5274 return; 5275 } 5276 /* 5277 * Since a configuration write can be done for commands that actually 5278 * have data allocated, like write buffer, and commands that have 5279 * no data, like start/stop unit, we need to check here. 5280 */ 5281 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5282 free(io->scsiio.kern_data_ptr, M_CTL); 5283 ctl_done(io); 5284} 5285 5286/* 5287 * SCSI release command. 5288 */ 5289int 5290ctl_scsi_release(struct ctl_scsiio *ctsio) 5291{ 5292 int length, longid, thirdparty_id, resv_id; 5293 struct ctl_softc *ctl_softc; 5294 struct ctl_lun *lun; 5295 5296 length = 0; 5297 resv_id = 0; 5298 5299 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5300 5301 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5302 ctl_softc = control_softc; 5303 5304 switch (ctsio->cdb[0]) { 5305 case RELEASE_10: { 5306 struct scsi_release_10 *cdb; 5307 5308 cdb = (struct scsi_release_10 *)ctsio->cdb; 5309 5310 if (cdb->byte2 & SR10_LONGID) 5311 longid = 1; 5312 else 5313 thirdparty_id = cdb->thirdparty_id; 5314 5315 resv_id = cdb->resv_id; 5316 length = scsi_2btoul(cdb->length); 5317 break; 5318 } 5319 } 5320 5321 5322 /* 5323 * XXX KDM right now, we only support LUN reservation. We don't 5324 * support 3rd party reservations, or extent reservations, which 5325 * might actually need the parameter list. If we've gotten this 5326 * far, we've got a LUN reservation. Anything else got kicked out 5327 * above. So, according to SPC, ignore the length. 5328 */ 5329 length = 0; 5330 5331 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5332 && (length > 0)) { 5333 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5334 ctsio->kern_data_len = length; 5335 ctsio->kern_total_len = length; 5336 ctsio->kern_data_resid = 0; 5337 ctsio->kern_rel_offset = 0; 5338 ctsio->kern_sg_entries = 0; 5339 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5340 ctsio->be_move_done = ctl_config_move_done; 5341 ctl_datamove((union ctl_io *)ctsio); 5342 5343 return (CTL_RETVAL_COMPLETE); 5344 } 5345 5346 if (length > 0) 5347 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5348 5349 mtx_lock(&lun->lun_lock); 5350 5351 /* 5352 * According to SPC, it is not an error for an intiator to attempt 5353 * to release a reservation on a LUN that isn't reserved, or that 5354 * is reserved by another initiator. The reservation can only be 5355 * released, though, by the initiator who made it or by one of 5356 * several reset type events. 5357 */ 5358 if (lun->flags & CTL_LUN_RESERVED) { 5359 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5360 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5361 && (ctsio->io_hdr.nexus.targ_target.id == 5362 lun->rsv_nexus.targ_target.id)) { 5363 lun->flags &= ~CTL_LUN_RESERVED; 5364 } 5365 } 5366 5367 mtx_unlock(&lun->lun_lock); 5368 5369 ctsio->scsi_status = SCSI_STATUS_OK; 5370 ctsio->io_hdr.status = CTL_SUCCESS; 5371 5372 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5373 free(ctsio->kern_data_ptr, M_CTL); 5374 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5375 } 5376 5377 ctl_done((union ctl_io *)ctsio); 5378 return (CTL_RETVAL_COMPLETE); 5379} 5380 5381int 5382ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5383{ 5384 int extent, thirdparty, longid; 5385 int resv_id, length; 5386 uint64_t thirdparty_id; 5387 struct ctl_softc *ctl_softc; 5388 struct ctl_lun *lun; 5389 5390 extent = 0; 5391 thirdparty = 0; 5392 longid = 0; 5393 resv_id = 0; 5394 length = 0; 5395 thirdparty_id = 0; 5396 5397 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5398 5399 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5400 ctl_softc = control_softc; 5401 5402 switch (ctsio->cdb[0]) { 5403 case RESERVE_10: { 5404 struct scsi_reserve_10 *cdb; 5405 5406 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5407 5408 if (cdb->byte2 & SR10_LONGID) 5409 longid = 1; 5410 else 5411 thirdparty_id = cdb->thirdparty_id; 5412 5413 resv_id = cdb->resv_id; 5414 length = scsi_2btoul(cdb->length); 5415 break; 5416 } 5417 } 5418 5419 /* 5420 * XXX KDM right now, we only support LUN reservation. We don't 5421 * support 3rd party reservations, or extent reservations, which 5422 * might actually need the parameter list. If we've gotten this 5423 * far, we've got a LUN reservation. Anything else got kicked out 5424 * above. So, according to SPC, ignore the length. 5425 */ 5426 length = 0; 5427 5428 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5429 && (length > 0)) { 5430 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5431 ctsio->kern_data_len = length; 5432 ctsio->kern_total_len = length; 5433 ctsio->kern_data_resid = 0; 5434 ctsio->kern_rel_offset = 0; 5435 ctsio->kern_sg_entries = 0; 5436 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5437 ctsio->be_move_done = ctl_config_move_done; 5438 ctl_datamove((union ctl_io *)ctsio); 5439 5440 return (CTL_RETVAL_COMPLETE); 5441 } 5442 5443 if (length > 0) 5444 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5445 5446 mtx_lock(&lun->lun_lock); 5447 if (lun->flags & CTL_LUN_RESERVED) { 5448 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5449 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5450 || (ctsio->io_hdr.nexus.targ_target.id != 5451 lun->rsv_nexus.targ_target.id)) { 5452 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5453 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5454 goto bailout; 5455 } 5456 } 5457 5458 lun->flags |= CTL_LUN_RESERVED; 5459 lun->rsv_nexus = ctsio->io_hdr.nexus; 5460 5461 ctsio->scsi_status = SCSI_STATUS_OK; 5462 ctsio->io_hdr.status = CTL_SUCCESS; 5463 5464bailout: 5465 mtx_unlock(&lun->lun_lock); 5466 5467 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5468 free(ctsio->kern_data_ptr, M_CTL); 5469 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5470 } 5471 5472 ctl_done((union ctl_io *)ctsio); 5473 return (CTL_RETVAL_COMPLETE); 5474} 5475 5476int 5477ctl_start_stop(struct ctl_scsiio *ctsio) 5478{ 5479 struct scsi_start_stop_unit *cdb; 5480 struct ctl_lun *lun; 5481 struct ctl_softc *ctl_softc; 5482 int retval; 5483 5484 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5485 5486 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5487 ctl_softc = control_softc; 5488 retval = 0; 5489 5490 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5491 5492 /* 5493 * XXX KDM 5494 * We don't support the immediate bit on a stop unit. In order to 5495 * do that, we would need to code up a way to know that a stop is 5496 * pending, and hold off any new commands until it completes, one 5497 * way or another. Then we could accept or reject those commands 5498 * depending on its status. We would almost need to do the reverse 5499 * of what we do below for an immediate start -- return the copy of 5500 * the ctl_io to the FETD with status to send to the host (and to 5501 * free the copy!) and then free the original I/O once the stop 5502 * actually completes. That way, the OOA queue mechanism can work 5503 * to block commands that shouldn't proceed. Another alternative 5504 * would be to put the copy in the queue in place of the original, 5505 * and return the original back to the caller. That could be 5506 * slightly safer.. 5507 */ 5508 if ((cdb->byte2 & SSS_IMMED) 5509 && ((cdb->how & SSS_START) == 0)) { 5510 ctl_set_invalid_field(ctsio, 5511 /*sks_valid*/ 1, 5512 /*command*/ 1, 5513 /*field*/ 1, 5514 /*bit_valid*/ 1, 5515 /*bit*/ 0); 5516 ctl_done((union ctl_io *)ctsio); 5517 return (CTL_RETVAL_COMPLETE); 5518 } 5519 5520 if ((lun->flags & CTL_LUN_PR_RESERVED) 5521 && ((cdb->how & SSS_START)==0)) { 5522 uint32_t residx; 5523 5524 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5525 if (!lun->per_res[residx].registered 5526 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5527 5528 ctl_set_reservation_conflict(ctsio); 5529 ctl_done((union ctl_io *)ctsio); 5530 return (CTL_RETVAL_COMPLETE); 5531 } 5532 } 5533 5534 /* 5535 * If there is no backend on this device, we can't start or stop 5536 * it. In theory we shouldn't get any start/stop commands in the 5537 * first place at this level if the LUN doesn't have a backend. 5538 * That should get stopped by the command decode code. 5539 */ 5540 if (lun->backend == NULL) { 5541 ctl_set_invalid_opcode(ctsio); 5542 ctl_done((union ctl_io *)ctsio); 5543 return (CTL_RETVAL_COMPLETE); 5544 } 5545 5546 /* 5547 * XXX KDM Copan-specific offline behavior. 5548 * Figure out a reasonable way to port this? 5549 */ 5550#ifdef NEEDTOPORT 5551 mtx_lock(&lun->lun_lock); 5552 5553 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5554 && (lun->flags & CTL_LUN_OFFLINE)) { 5555 /* 5556 * If the LUN is offline, and the on/offline bit isn't set, 5557 * reject the start or stop. Otherwise, let it through. 5558 */ 5559 mtx_unlock(&lun->lun_lock); 5560 ctl_set_lun_not_ready(ctsio); 5561 ctl_done((union ctl_io *)ctsio); 5562 } else { 5563 mtx_unlock(&lun->lun_lock); 5564#endif /* NEEDTOPORT */ 5565 /* 5566 * This could be a start or a stop when we're online, 5567 * or a stop/offline or start/online. A start or stop when 5568 * we're offline is covered in the case above. 5569 */ 5570 /* 5571 * In the non-immediate case, we send the request to 5572 * the backend and return status to the user when 5573 * it is done. 5574 * 5575 * In the immediate case, we allocate a new ctl_io 5576 * to hold a copy of the request, and send that to 5577 * the backend. We then set good status on the 5578 * user's request and return it immediately. 5579 */ 5580 if (cdb->byte2 & SSS_IMMED) { 5581 union ctl_io *new_io; 5582 5583 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5584 if (new_io == NULL) { 5585 ctl_set_busy(ctsio); 5586 ctl_done((union ctl_io *)ctsio); 5587 } else { 5588 ctl_copy_io((union ctl_io *)ctsio, 5589 new_io); 5590 retval = lun->backend->config_write(new_io); 5591 ctl_set_success(ctsio); 5592 ctl_done((union ctl_io *)ctsio); 5593 } 5594 } else { 5595 retval = lun->backend->config_write( 5596 (union ctl_io *)ctsio); 5597 } 5598#ifdef NEEDTOPORT 5599 } 5600#endif 5601 return (retval); 5602} 5603 5604/* 5605 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5606 * we don't really do anything with the LBA and length fields if the user 5607 * passes them in. Instead we'll just flush out the cache for the entire 5608 * LUN. 5609 */ 5610int 5611ctl_sync_cache(struct ctl_scsiio *ctsio) 5612{ 5613 struct ctl_lun *lun; 5614 struct ctl_softc *ctl_softc; 5615 uint64_t starting_lba; 5616 uint32_t block_count; 5617 int retval; 5618 5619 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5620 5621 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5622 ctl_softc = control_softc; 5623 retval = 0; 5624 5625 switch (ctsio->cdb[0]) { 5626 case SYNCHRONIZE_CACHE: { 5627 struct scsi_sync_cache *cdb; 5628 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5629 5630 starting_lba = scsi_4btoul(cdb->begin_lba); 5631 block_count = scsi_2btoul(cdb->lb_count); 5632 break; 5633 } 5634 case SYNCHRONIZE_CACHE_16: { 5635 struct scsi_sync_cache_16 *cdb; 5636 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5637 5638 starting_lba = scsi_8btou64(cdb->begin_lba); 5639 block_count = scsi_4btoul(cdb->lb_count); 5640 break; 5641 } 5642 default: 5643 ctl_set_invalid_opcode(ctsio); 5644 ctl_done((union ctl_io *)ctsio); 5645 goto bailout; 5646 break; /* NOTREACHED */ 5647 } 5648 5649 /* 5650 * We check the LBA and length, but don't do anything with them. 5651 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5652 * get flushed. This check will just help satisfy anyone who wants 5653 * to see an error for an out of range LBA. 5654 */ 5655 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5656 ctl_set_lba_out_of_range(ctsio); 5657 ctl_done((union ctl_io *)ctsio); 5658 goto bailout; 5659 } 5660 5661 /* 5662 * If this LUN has no backend, we can't flush the cache anyway. 5663 */ 5664 if (lun->backend == NULL) { 5665 ctl_set_invalid_opcode(ctsio); 5666 ctl_done((union ctl_io *)ctsio); 5667 goto bailout; 5668 } 5669 5670 /* 5671 * Check to see whether we're configured to send the SYNCHRONIZE 5672 * CACHE command directly to the back end. 5673 */ 5674 mtx_lock(&lun->lun_lock); 5675 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5676 && (++(lun->sync_count) >= lun->sync_interval)) { 5677 lun->sync_count = 0; 5678 mtx_unlock(&lun->lun_lock); 5679 retval = lun->backend->config_write((union ctl_io *)ctsio); 5680 } else { 5681 mtx_unlock(&lun->lun_lock); 5682 ctl_set_success(ctsio); 5683 ctl_done((union ctl_io *)ctsio); 5684 } 5685 5686bailout: 5687 5688 return (retval); 5689} 5690 5691int 5692ctl_format(struct ctl_scsiio *ctsio) 5693{ 5694 struct scsi_format *cdb; 5695 struct ctl_lun *lun; 5696 struct ctl_softc *ctl_softc; 5697 int length, defect_list_len; 5698 5699 CTL_DEBUG_PRINT(("ctl_format\n")); 5700 5701 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5702 ctl_softc = control_softc; 5703 5704 cdb = (struct scsi_format *)ctsio->cdb; 5705 5706 length = 0; 5707 if (cdb->byte2 & SF_FMTDATA) { 5708 if (cdb->byte2 & SF_LONGLIST) 5709 length = sizeof(struct scsi_format_header_long); 5710 else 5711 length = sizeof(struct scsi_format_header_short); 5712 } 5713 5714 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5715 && (length > 0)) { 5716 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5717 ctsio->kern_data_len = length; 5718 ctsio->kern_total_len = length; 5719 ctsio->kern_data_resid = 0; 5720 ctsio->kern_rel_offset = 0; 5721 ctsio->kern_sg_entries = 0; 5722 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5723 ctsio->be_move_done = ctl_config_move_done; 5724 ctl_datamove((union ctl_io *)ctsio); 5725 5726 return (CTL_RETVAL_COMPLETE); 5727 } 5728 5729 defect_list_len = 0; 5730 5731 if (cdb->byte2 & SF_FMTDATA) { 5732 if (cdb->byte2 & SF_LONGLIST) { 5733 struct scsi_format_header_long *header; 5734 5735 header = (struct scsi_format_header_long *) 5736 ctsio->kern_data_ptr; 5737 5738 defect_list_len = scsi_4btoul(header->defect_list_len); 5739 if (defect_list_len != 0) { 5740 ctl_set_invalid_field(ctsio, 5741 /*sks_valid*/ 1, 5742 /*command*/ 0, 5743 /*field*/ 2, 5744 /*bit_valid*/ 0, 5745 /*bit*/ 0); 5746 goto bailout; 5747 } 5748 } else { 5749 struct scsi_format_header_short *header; 5750 5751 header = (struct scsi_format_header_short *) 5752 ctsio->kern_data_ptr; 5753 5754 defect_list_len = scsi_2btoul(header->defect_list_len); 5755 if (defect_list_len != 0) { 5756 ctl_set_invalid_field(ctsio, 5757 /*sks_valid*/ 1, 5758 /*command*/ 0, 5759 /*field*/ 2, 5760 /*bit_valid*/ 0, 5761 /*bit*/ 0); 5762 goto bailout; 5763 } 5764 } 5765 } 5766 5767 /* 5768 * The format command will clear out the "Medium format corrupted" 5769 * status if set by the configuration code. That status is really 5770 * just a way to notify the host that we have lost the media, and 5771 * get them to issue a command that will basically make them think 5772 * they're blowing away the media. 5773 */ 5774 mtx_lock(&lun->lun_lock); 5775 lun->flags &= ~CTL_LUN_INOPERABLE; 5776 mtx_unlock(&lun->lun_lock); 5777 5778 ctsio->scsi_status = SCSI_STATUS_OK; 5779 ctsio->io_hdr.status = CTL_SUCCESS; 5780bailout: 5781 5782 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5783 free(ctsio->kern_data_ptr, M_CTL); 5784 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5785 } 5786 5787 ctl_done((union ctl_io *)ctsio); 5788 return (CTL_RETVAL_COMPLETE); 5789} 5790 5791int 5792ctl_read_buffer(struct ctl_scsiio *ctsio) 5793{ 5794 struct scsi_read_buffer *cdb; 5795 struct ctl_lun *lun; 5796 int buffer_offset, len; 5797 static uint8_t descr[4]; 5798 static uint8_t echo_descr[4] = { 0 }; 5799 5800 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5801 5802 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5803 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5804 5805 if (lun->flags & CTL_LUN_PR_RESERVED) { 5806 uint32_t residx; 5807 5808 /* 5809 * XXX KDM need a lock here. 5810 */ 5811 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5812 if ((lun->res_type == SPR_TYPE_EX_AC 5813 && residx != lun->pr_res_idx) 5814 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5815 || lun->res_type == SPR_TYPE_EX_AC_AR) 5816 && !lun->per_res[residx].registered)) { 5817 ctl_set_reservation_conflict(ctsio); 5818 ctl_done((union ctl_io *)ctsio); 5819 return (CTL_RETVAL_COMPLETE); 5820 } 5821 } 5822 5823 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5824 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5825 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5826 ctl_set_invalid_field(ctsio, 5827 /*sks_valid*/ 1, 5828 /*command*/ 1, 5829 /*field*/ 1, 5830 /*bit_valid*/ 1, 5831 /*bit*/ 4); 5832 ctl_done((union ctl_io *)ctsio); 5833 return (CTL_RETVAL_COMPLETE); 5834 } 5835 5836 len = scsi_3btoul(cdb->length); 5837 buffer_offset = scsi_3btoul(cdb->offset); 5838 5839 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5840 ctl_set_invalid_field(ctsio, 5841 /*sks_valid*/ 1, 5842 /*command*/ 1, 5843 /*field*/ 6, 5844 /*bit_valid*/ 0, 5845 /*bit*/ 0); 5846 ctl_done((union ctl_io *)ctsio); 5847 return (CTL_RETVAL_COMPLETE); 5848 } 5849 5850 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5851 descr[0] = 0; 5852 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5853 ctsio->kern_data_ptr = descr; 5854 len = min(len, sizeof(descr)); 5855 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5856 ctsio->kern_data_ptr = echo_descr; 5857 len = min(len, sizeof(echo_descr)); 5858 } else 5859 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5860 ctsio->kern_data_len = len; 5861 ctsio->kern_total_len = len; 5862 ctsio->kern_data_resid = 0; 5863 ctsio->kern_rel_offset = 0; 5864 ctsio->kern_sg_entries = 0; 5865 ctsio->be_move_done = ctl_config_move_done; 5866 ctl_datamove((union ctl_io *)ctsio); 5867 5868 return (CTL_RETVAL_COMPLETE); 5869} 5870 5871int 5872ctl_write_buffer(struct ctl_scsiio *ctsio) 5873{ 5874 struct scsi_write_buffer *cdb; 5875 struct ctl_lun *lun; 5876 int buffer_offset, len; 5877 5878 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5879 5880 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5881 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5882 5883 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5884 ctl_set_invalid_field(ctsio, 5885 /*sks_valid*/ 1, 5886 /*command*/ 1, 5887 /*field*/ 1, 5888 /*bit_valid*/ 1, 5889 /*bit*/ 4); 5890 ctl_done((union ctl_io *)ctsio); 5891 return (CTL_RETVAL_COMPLETE); 5892 } 5893 5894 len = scsi_3btoul(cdb->length); 5895 buffer_offset = scsi_3btoul(cdb->offset); 5896 5897 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5898 ctl_set_invalid_field(ctsio, 5899 /*sks_valid*/ 1, 5900 /*command*/ 1, 5901 /*field*/ 6, 5902 /*bit_valid*/ 0, 5903 /*bit*/ 0); 5904 ctl_done((union ctl_io *)ctsio); 5905 return (CTL_RETVAL_COMPLETE); 5906 } 5907 5908 /* 5909 * If we've got a kernel request that hasn't been malloced yet, 5910 * malloc it and tell the caller the data buffer is here. 5911 */ 5912 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5913 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5914 ctsio->kern_data_len = len; 5915 ctsio->kern_total_len = len; 5916 ctsio->kern_data_resid = 0; 5917 ctsio->kern_rel_offset = 0; 5918 ctsio->kern_sg_entries = 0; 5919 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5920 ctsio->be_move_done = ctl_config_move_done; 5921 ctl_datamove((union ctl_io *)ctsio); 5922 5923 return (CTL_RETVAL_COMPLETE); 5924 } 5925 5926 ctl_done((union ctl_io *)ctsio); 5927 5928 return (CTL_RETVAL_COMPLETE); 5929} 5930 5931int 5932ctl_write_same(struct ctl_scsiio *ctsio) 5933{ 5934 struct ctl_lun *lun; 5935 struct ctl_lba_len_flags *lbalen; 5936 uint64_t lba; 5937 uint32_t num_blocks; 5938 int len, retval; 5939 uint8_t byte2; 5940 5941 retval = CTL_RETVAL_COMPLETE; 5942 5943 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5944 5945 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5946 5947 switch (ctsio->cdb[0]) { 5948 case WRITE_SAME_10: { 5949 struct scsi_write_same_10 *cdb; 5950 5951 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5952 5953 lba = scsi_4btoul(cdb->addr); 5954 num_blocks = scsi_2btoul(cdb->length); 5955 byte2 = cdb->byte2; 5956 break; 5957 } 5958 case WRITE_SAME_16: { 5959 struct scsi_write_same_16 *cdb; 5960 5961 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5962 5963 lba = scsi_8btou64(cdb->addr); 5964 num_blocks = scsi_4btoul(cdb->length); 5965 byte2 = cdb->byte2; 5966 break; 5967 } 5968 default: 5969 /* 5970 * We got a command we don't support. This shouldn't 5971 * happen, commands should be filtered out above us. 5972 */ 5973 ctl_set_invalid_opcode(ctsio); 5974 ctl_done((union ctl_io *)ctsio); 5975 5976 return (CTL_RETVAL_COMPLETE); 5977 break; /* NOTREACHED */ 5978 } 5979 5980 /* 5981 * The first check is to make sure we're in bounds, the second 5982 * check is to catch wrap-around problems. If the lba + num blocks 5983 * is less than the lba, then we've wrapped around and the block 5984 * range is invalid anyway. 5985 */ 5986 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5987 || ((lba + num_blocks) < lba)) { 5988 ctl_set_lba_out_of_range(ctsio); 5989 ctl_done((union ctl_io *)ctsio); 5990 return (CTL_RETVAL_COMPLETE); 5991 } 5992 5993 /* Zero number of blocks means "to the last logical block" */ 5994 if (num_blocks == 0) { 5995 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5996 ctl_set_invalid_field(ctsio, 5997 /*sks_valid*/ 0, 5998 /*command*/ 1, 5999 /*field*/ 0, 6000 /*bit_valid*/ 0, 6001 /*bit*/ 0); 6002 ctl_done((union ctl_io *)ctsio); 6003 return (CTL_RETVAL_COMPLETE); 6004 } 6005 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6006 } 6007 6008 len = lun->be_lun->blocksize; 6009 6010 /* 6011 * If we've got a kernel request that hasn't been malloced yet, 6012 * malloc it and tell the caller the data buffer is here. 6013 */ 6014 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6015 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6016 ctsio->kern_data_len = len; 6017 ctsio->kern_total_len = len; 6018 ctsio->kern_data_resid = 0; 6019 ctsio->kern_rel_offset = 0; 6020 ctsio->kern_sg_entries = 0; 6021 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6022 ctsio->be_move_done = ctl_config_move_done; 6023 ctl_datamove((union ctl_io *)ctsio); 6024 6025 return (CTL_RETVAL_COMPLETE); 6026 } 6027 6028 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6029 lbalen->lba = lba; 6030 lbalen->len = num_blocks; 6031 lbalen->flags = byte2; 6032 retval = lun->backend->config_write((union ctl_io *)ctsio); 6033 6034 return (retval); 6035} 6036 6037int 6038ctl_unmap(struct ctl_scsiio *ctsio) 6039{ 6040 struct ctl_lun *lun; 6041 struct scsi_unmap *cdb; 6042 struct ctl_ptr_len_flags *ptrlen; 6043 struct scsi_unmap_header *hdr; 6044 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6045 uint64_t lba; 6046 uint32_t num_blocks; 6047 int len, retval; 6048 uint8_t byte2; 6049 6050 retval = CTL_RETVAL_COMPLETE; 6051 6052 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6053 6054 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6055 cdb = (struct scsi_unmap *)ctsio->cdb; 6056 6057 len = scsi_2btoul(cdb->length); 6058 byte2 = cdb->byte2; 6059 6060 /* 6061 * If we've got a kernel request that hasn't been malloced yet, 6062 * malloc it and tell the caller the data buffer is here. 6063 */ 6064 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6065 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6066 ctsio->kern_data_len = len; 6067 ctsio->kern_total_len = len; 6068 ctsio->kern_data_resid = 0; 6069 ctsio->kern_rel_offset = 0; 6070 ctsio->kern_sg_entries = 0; 6071 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6072 ctsio->be_move_done = ctl_config_move_done; 6073 ctl_datamove((union ctl_io *)ctsio); 6074 6075 return (CTL_RETVAL_COMPLETE); 6076 } 6077 6078 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6079 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6080 if (len < sizeof (*hdr) || 6081 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6082 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6083 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6084 ctl_set_invalid_field(ctsio, 6085 /*sks_valid*/ 0, 6086 /*command*/ 0, 6087 /*field*/ 0, 6088 /*bit_valid*/ 0, 6089 /*bit*/ 0); 6090 ctl_done((union ctl_io *)ctsio); 6091 return (CTL_RETVAL_COMPLETE); 6092 } 6093 len = scsi_2btoul(hdr->desc_length); 6094 buf = (struct scsi_unmap_desc *)(hdr + 1); 6095 end = buf + len / sizeof(*buf); 6096 6097 endnz = buf; 6098 for (range = buf; range < end; range++) { 6099 lba = scsi_8btou64(range->lba); 6100 num_blocks = scsi_4btoul(range->length); 6101 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6102 || ((lba + num_blocks) < lba)) { 6103 ctl_set_lba_out_of_range(ctsio); 6104 ctl_done((union ctl_io *)ctsio); 6105 return (CTL_RETVAL_COMPLETE); 6106 } 6107 if (num_blocks != 0) 6108 endnz = range + 1; 6109 } 6110 6111 /* 6112 * Block backend can not handle zero last range. 6113 * Filter it out and return if there is nothing left. 6114 */ 6115 len = (uint8_t *)endnz - (uint8_t *)buf; 6116 if (len == 0) { 6117 ctl_set_success(ctsio); 6118 ctl_done((union ctl_io *)ctsio); 6119 return (CTL_RETVAL_COMPLETE); 6120 } 6121 6122 ptrlen = (struct ctl_ptr_len_flags *) 6123 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6124 ptrlen->ptr = (void *)buf; 6125 ptrlen->len = len; 6126 ptrlen->flags = byte2; 6127 6128 retval = lun->backend->config_write((union ctl_io *)ctsio); 6129 return (retval); 6130} 6131 6132/* 6133 * Note that this function currently doesn't actually do anything inside 6134 * CTL to enforce things if the DQue bit is turned on. 6135 * 6136 * Also note that this function can't be used in the default case, because 6137 * the DQue bit isn't set in the changeable mask for the control mode page 6138 * anyway. This is just here as an example for how to implement a page 6139 * handler, and a placeholder in case we want to allow the user to turn 6140 * tagged queueing on and off. 6141 * 6142 * The D_SENSE bit handling is functional, however, and will turn 6143 * descriptor sense on and off for a given LUN. 6144 */ 6145int 6146ctl_control_page_handler(struct ctl_scsiio *ctsio, 6147 struct ctl_page_index *page_index, uint8_t *page_ptr) 6148{ 6149 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6150 struct ctl_lun *lun; 6151 struct ctl_softc *softc; 6152 int set_ua; 6153 uint32_t initidx; 6154 6155 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6156 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6157 set_ua = 0; 6158 6159 user_cp = (struct scsi_control_page *)page_ptr; 6160 current_cp = (struct scsi_control_page *) 6161 (page_index->page_data + (page_index->page_len * 6162 CTL_PAGE_CURRENT)); 6163 saved_cp = (struct scsi_control_page *) 6164 (page_index->page_data + (page_index->page_len * 6165 CTL_PAGE_SAVED)); 6166 6167 softc = control_softc; 6168 6169 mtx_lock(&lun->lun_lock); 6170 if (((current_cp->rlec & SCP_DSENSE) == 0) 6171 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6172 /* 6173 * Descriptor sense is currently turned off and the user 6174 * wants to turn it on. 6175 */ 6176 current_cp->rlec |= SCP_DSENSE; 6177 saved_cp->rlec |= SCP_DSENSE; 6178 lun->flags |= CTL_LUN_SENSE_DESC; 6179 set_ua = 1; 6180 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6181 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6182 /* 6183 * Descriptor sense is currently turned on, and the user 6184 * wants to turn it off. 6185 */ 6186 current_cp->rlec &= ~SCP_DSENSE; 6187 saved_cp->rlec &= ~SCP_DSENSE; 6188 lun->flags &= ~CTL_LUN_SENSE_DESC; 6189 set_ua = 1; 6190 } 6191 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6192 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6193#ifdef NEEDTOPORT 6194 csevent_log(CSC_CTL | CSC_SHELF_SW | 6195 CTL_UNTAG_TO_UNTAG, 6196 csevent_LogType_Trace, 6197 csevent_Severity_Information, 6198 csevent_AlertLevel_Green, 6199 csevent_FRU_Firmware, 6200 csevent_FRU_Unknown, 6201 "Received untagged to untagged transition"); 6202#endif /* NEEDTOPORT */ 6203 } else { 6204#ifdef NEEDTOPORT 6205 csevent_log(CSC_CTL | CSC_SHELF_SW | 6206 CTL_UNTAG_TO_TAG, 6207 csevent_LogType_ConfigChange, 6208 csevent_Severity_Information, 6209 csevent_AlertLevel_Green, 6210 csevent_FRU_Firmware, 6211 csevent_FRU_Unknown, 6212 "Received untagged to tagged " 6213 "queueing transition"); 6214#endif /* NEEDTOPORT */ 6215 6216 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6217 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6218 set_ua = 1; 6219 } 6220 } else { 6221 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6222#ifdef NEEDTOPORT 6223 csevent_log(CSC_CTL | CSC_SHELF_SW | 6224 CTL_TAG_TO_UNTAG, 6225 csevent_LogType_ConfigChange, 6226 csevent_Severity_Warning, 6227 csevent_AlertLevel_Yellow, 6228 csevent_FRU_Firmware, 6229 csevent_FRU_Unknown, 6230 "Received tagged queueing to untagged " 6231 "transition"); 6232#endif /* NEEDTOPORT */ 6233 6234 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6235 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6236 set_ua = 1; 6237 } else { 6238#ifdef NEEDTOPORT 6239 csevent_log(CSC_CTL | CSC_SHELF_SW | 6240 CTL_TAG_TO_TAG, 6241 csevent_LogType_Trace, 6242 csevent_Severity_Information, 6243 csevent_AlertLevel_Green, 6244 csevent_FRU_Firmware, 6245 csevent_FRU_Unknown, 6246 "Received tagged queueing to tagged " 6247 "queueing transition"); 6248#endif /* NEEDTOPORT */ 6249 } 6250 } 6251 if (set_ua != 0) { 6252 int i; 6253 /* 6254 * Let other initiators know that the mode 6255 * parameters for this LUN have changed. 6256 */ 6257 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6258 if (i == initidx) 6259 continue; 6260 6261 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6262 } 6263 } 6264 mtx_unlock(&lun->lun_lock); 6265 6266 return (0); 6267} 6268 6269int 6270ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6271 struct ctl_page_index *page_index, uint8_t *page_ptr) 6272{ 6273 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6274 struct ctl_lun *lun; 6275 int set_ua; 6276 uint32_t initidx; 6277 6278 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6279 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6280 set_ua = 0; 6281 6282 user_cp = (struct scsi_caching_page *)page_ptr; 6283 current_cp = (struct scsi_caching_page *) 6284 (page_index->page_data + (page_index->page_len * 6285 CTL_PAGE_CURRENT)); 6286 saved_cp = (struct scsi_caching_page *) 6287 (page_index->page_data + (page_index->page_len * 6288 CTL_PAGE_SAVED)); 6289 6290 mtx_lock(&lun->lun_lock); 6291 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6292 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) 6293 set_ua = 1; 6294 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6295 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6296 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6297 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6298 if (set_ua != 0) { 6299 int i; 6300 /* 6301 * Let other initiators know that the mode 6302 * parameters for this LUN have changed. 6303 */ 6304 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6305 if (i == initidx) 6306 continue; 6307 6308 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6309 } 6310 } 6311 mtx_unlock(&lun->lun_lock); 6312 6313 return (0); 6314} 6315 6316int 6317ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6318 struct ctl_page_index *page_index, uint8_t *page_ptr) 6319{ 6320 return (0); 6321} 6322 6323int 6324ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6325 struct ctl_page_index *page_index, int pc) 6326{ 6327 struct copan_power_subpage *page; 6328 6329 page = (struct copan_power_subpage *)page_index->page_data + 6330 (page_index->page_len * pc); 6331 6332 switch (pc) { 6333 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6334 /* 6335 * We don't update the changable bits for this page. 6336 */ 6337 break; 6338 case SMS_PAGE_CTRL_CURRENT >> 6: 6339 case SMS_PAGE_CTRL_DEFAULT >> 6: 6340 case SMS_PAGE_CTRL_SAVED >> 6: 6341#ifdef NEEDTOPORT 6342 ctl_update_power_subpage(page); 6343#endif 6344 break; 6345 default: 6346#ifdef NEEDTOPORT 6347 EPRINT(0, "Invalid PC %d!!", pc); 6348#endif 6349 break; 6350 } 6351 return (0); 6352} 6353 6354 6355int 6356ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6357 struct ctl_page_index *page_index, uint8_t *page_ptr) 6358{ 6359 struct copan_aps_subpage *user_sp; 6360 struct copan_aps_subpage *current_sp; 6361 union ctl_modepage_info *modepage_info; 6362 struct ctl_softc *softc; 6363 struct ctl_lun *lun; 6364 int retval; 6365 6366 retval = CTL_RETVAL_COMPLETE; 6367 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6368 (page_index->page_len * CTL_PAGE_CURRENT)); 6369 softc = control_softc; 6370 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6371 6372 user_sp = (struct copan_aps_subpage *)page_ptr; 6373 6374 modepage_info = (union ctl_modepage_info *) 6375 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6376 6377 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6378 modepage_info->header.subpage = page_index->subpage; 6379 modepage_info->aps.lock_active = user_sp->lock_active; 6380 6381 mtx_lock(&softc->ctl_lock); 6382 6383 /* 6384 * If there is a request to lock the LUN and another LUN is locked 6385 * this is an error. If the requested LUN is already locked ignore 6386 * the request. If no LUN is locked attempt to lock it. 6387 * if there is a request to unlock the LUN and the LUN is currently 6388 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6389 * if another LUN is locked or no LUN is locked. 6390 */ 6391 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6392 if (softc->aps_locked_lun == lun->lun) { 6393 /* 6394 * This LUN is already locked, so we're done. 6395 */ 6396 retval = CTL_RETVAL_COMPLETE; 6397 } else if (softc->aps_locked_lun == 0) { 6398 /* 6399 * No one has the lock, pass the request to the 6400 * backend. 6401 */ 6402 retval = lun->backend->config_write( 6403 (union ctl_io *)ctsio); 6404 } else { 6405 /* 6406 * Someone else has the lock, throw out the request. 6407 */ 6408 ctl_set_already_locked(ctsio); 6409 free(ctsio->kern_data_ptr, M_CTL); 6410 ctl_done((union ctl_io *)ctsio); 6411 6412 /* 6413 * Set the return value so that ctl_do_mode_select() 6414 * won't try to complete the command. We already 6415 * completed it here. 6416 */ 6417 retval = CTL_RETVAL_ERROR; 6418 } 6419 } else if (softc->aps_locked_lun == lun->lun) { 6420 /* 6421 * This LUN is locked, so pass the unlock request to the 6422 * backend. 6423 */ 6424 retval = lun->backend->config_write((union ctl_io *)ctsio); 6425 } 6426 mtx_unlock(&softc->ctl_lock); 6427 6428 return (retval); 6429} 6430 6431int 6432ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6433 struct ctl_page_index *page_index, 6434 uint8_t *page_ptr) 6435{ 6436 uint8_t *c; 6437 int i; 6438 6439 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6440 ctl_time_io_secs = 6441 (c[0] << 8) | 6442 (c[1] << 0) | 6443 0; 6444 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6445 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6446 printf("page data:"); 6447 for (i=0; i<8; i++) 6448 printf(" %.2x",page_ptr[i]); 6449 printf("\n"); 6450 return (0); 6451} 6452 6453int 6454ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6455 struct ctl_page_index *page_index, 6456 int pc) 6457{ 6458 struct copan_debugconf_subpage *page; 6459 6460 page = (struct copan_debugconf_subpage *)page_index->page_data + 6461 (page_index->page_len * pc); 6462 6463 switch (pc) { 6464 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6465 case SMS_PAGE_CTRL_DEFAULT >> 6: 6466 case SMS_PAGE_CTRL_SAVED >> 6: 6467 /* 6468 * We don't update the changable or default bits for this page. 6469 */ 6470 break; 6471 case SMS_PAGE_CTRL_CURRENT >> 6: 6472 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6473 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6474 break; 6475 default: 6476#ifdef NEEDTOPORT 6477 EPRINT(0, "Invalid PC %d!!", pc); 6478#endif /* NEEDTOPORT */ 6479 break; 6480 } 6481 return (0); 6482} 6483 6484 6485static int 6486ctl_do_mode_select(union ctl_io *io) 6487{ 6488 struct scsi_mode_page_header *page_header; 6489 struct ctl_page_index *page_index; 6490 struct ctl_scsiio *ctsio; 6491 int control_dev, page_len; 6492 int page_len_offset, page_len_size; 6493 union ctl_modepage_info *modepage_info; 6494 struct ctl_lun *lun; 6495 int *len_left, *len_used; 6496 int retval, i; 6497 6498 ctsio = &io->scsiio; 6499 page_index = NULL; 6500 page_len = 0; 6501 retval = CTL_RETVAL_COMPLETE; 6502 6503 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6504 6505 if (lun->be_lun->lun_type != T_DIRECT) 6506 control_dev = 1; 6507 else 6508 control_dev = 0; 6509 6510 modepage_info = (union ctl_modepage_info *) 6511 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6512 len_left = &modepage_info->header.len_left; 6513 len_used = &modepage_info->header.len_used; 6514 6515do_next_page: 6516 6517 page_header = (struct scsi_mode_page_header *) 6518 (ctsio->kern_data_ptr + *len_used); 6519 6520 if (*len_left == 0) { 6521 free(ctsio->kern_data_ptr, M_CTL); 6522 ctl_set_success(ctsio); 6523 ctl_done((union ctl_io *)ctsio); 6524 return (CTL_RETVAL_COMPLETE); 6525 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6526 6527 free(ctsio->kern_data_ptr, M_CTL); 6528 ctl_set_param_len_error(ctsio); 6529 ctl_done((union ctl_io *)ctsio); 6530 return (CTL_RETVAL_COMPLETE); 6531 6532 } else if ((page_header->page_code & SMPH_SPF) 6533 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6534 6535 free(ctsio->kern_data_ptr, M_CTL); 6536 ctl_set_param_len_error(ctsio); 6537 ctl_done((union ctl_io *)ctsio); 6538 return (CTL_RETVAL_COMPLETE); 6539 } 6540 6541 6542 /* 6543 * XXX KDM should we do something with the block descriptor? 6544 */ 6545 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6546 6547 if ((control_dev != 0) 6548 && (lun->mode_pages.index[i].page_flags & 6549 CTL_PAGE_FLAG_DISK_ONLY)) 6550 continue; 6551 6552 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6553 (page_header->page_code & SMPH_PC_MASK)) 6554 continue; 6555 6556 /* 6557 * If neither page has a subpage code, then we've got a 6558 * match. 6559 */ 6560 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6561 && ((page_header->page_code & SMPH_SPF) == 0)) { 6562 page_index = &lun->mode_pages.index[i]; 6563 page_len = page_header->page_length; 6564 break; 6565 } 6566 6567 /* 6568 * If both pages have subpages, then the subpage numbers 6569 * have to match. 6570 */ 6571 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6572 && (page_header->page_code & SMPH_SPF)) { 6573 struct scsi_mode_page_header_sp *sph; 6574 6575 sph = (struct scsi_mode_page_header_sp *)page_header; 6576 6577 if (lun->mode_pages.index[i].subpage == 6578 sph->subpage) { 6579 page_index = &lun->mode_pages.index[i]; 6580 page_len = scsi_2btoul(sph->page_length); 6581 break; 6582 } 6583 } 6584 } 6585 6586 /* 6587 * If we couldn't find the page, or if we don't have a mode select 6588 * handler for it, send back an error to the user. 6589 */ 6590 if ((page_index == NULL) 6591 || (page_index->select_handler == NULL)) { 6592 ctl_set_invalid_field(ctsio, 6593 /*sks_valid*/ 1, 6594 /*command*/ 0, 6595 /*field*/ *len_used, 6596 /*bit_valid*/ 0, 6597 /*bit*/ 0); 6598 free(ctsio->kern_data_ptr, M_CTL); 6599 ctl_done((union ctl_io *)ctsio); 6600 return (CTL_RETVAL_COMPLETE); 6601 } 6602 6603 if (page_index->page_code & SMPH_SPF) { 6604 page_len_offset = 2; 6605 page_len_size = 2; 6606 } else { 6607 page_len_size = 1; 6608 page_len_offset = 1; 6609 } 6610 6611 /* 6612 * If the length the initiator gives us isn't the one we specify in 6613 * the mode page header, or if they didn't specify enough data in 6614 * the CDB to avoid truncating this page, kick out the request. 6615 */ 6616 if ((page_len != (page_index->page_len - page_len_offset - 6617 page_len_size)) 6618 || (*len_left < page_index->page_len)) { 6619 6620 6621 ctl_set_invalid_field(ctsio, 6622 /*sks_valid*/ 1, 6623 /*command*/ 0, 6624 /*field*/ *len_used + page_len_offset, 6625 /*bit_valid*/ 0, 6626 /*bit*/ 0); 6627 free(ctsio->kern_data_ptr, M_CTL); 6628 ctl_done((union ctl_io *)ctsio); 6629 return (CTL_RETVAL_COMPLETE); 6630 } 6631 6632 /* 6633 * Run through the mode page, checking to make sure that the bits 6634 * the user changed are actually legal for him to change. 6635 */ 6636 for (i = 0; i < page_index->page_len; i++) { 6637 uint8_t *user_byte, *change_mask, *current_byte; 6638 int bad_bit; 6639 int j; 6640 6641 user_byte = (uint8_t *)page_header + i; 6642 change_mask = page_index->page_data + 6643 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6644 current_byte = page_index->page_data + 6645 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6646 6647 /* 6648 * Check to see whether the user set any bits in this byte 6649 * that he is not allowed to set. 6650 */ 6651 if ((*user_byte & ~(*change_mask)) == 6652 (*current_byte & ~(*change_mask))) 6653 continue; 6654 6655 /* 6656 * Go through bit by bit to determine which one is illegal. 6657 */ 6658 bad_bit = 0; 6659 for (j = 7; j >= 0; j--) { 6660 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6661 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6662 bad_bit = i; 6663 break; 6664 } 6665 } 6666 ctl_set_invalid_field(ctsio, 6667 /*sks_valid*/ 1, 6668 /*command*/ 0, 6669 /*field*/ *len_used + i, 6670 /*bit_valid*/ 1, 6671 /*bit*/ bad_bit); 6672 free(ctsio->kern_data_ptr, M_CTL); 6673 ctl_done((union ctl_io *)ctsio); 6674 return (CTL_RETVAL_COMPLETE); 6675 } 6676 6677 /* 6678 * Decrement these before we call the page handler, since we may 6679 * end up getting called back one way or another before the handler 6680 * returns to this context. 6681 */ 6682 *len_left -= page_index->page_len; 6683 *len_used += page_index->page_len; 6684 6685 retval = page_index->select_handler(ctsio, page_index, 6686 (uint8_t *)page_header); 6687 6688 /* 6689 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6690 * wait until this queued command completes to finish processing 6691 * the mode page. If it returns anything other than 6692 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6693 * already set the sense information, freed the data pointer, and 6694 * completed the io for us. 6695 */ 6696 if (retval != CTL_RETVAL_COMPLETE) 6697 goto bailout_no_done; 6698 6699 /* 6700 * If the initiator sent us more than one page, parse the next one. 6701 */ 6702 if (*len_left > 0) 6703 goto do_next_page; 6704 6705 ctl_set_success(ctsio); 6706 free(ctsio->kern_data_ptr, M_CTL); 6707 ctl_done((union ctl_io *)ctsio); 6708 6709bailout_no_done: 6710 6711 return (CTL_RETVAL_COMPLETE); 6712 6713} 6714 6715int 6716ctl_mode_select(struct ctl_scsiio *ctsio) 6717{ 6718 int param_len, pf, sp; 6719 int header_size, bd_len; 6720 int len_left, len_used; 6721 struct ctl_page_index *page_index; 6722 struct ctl_lun *lun; 6723 int control_dev, page_len; 6724 union ctl_modepage_info *modepage_info; 6725 int retval; 6726 6727 pf = 0; 6728 sp = 0; 6729 page_len = 0; 6730 len_used = 0; 6731 len_left = 0; 6732 retval = 0; 6733 bd_len = 0; 6734 page_index = NULL; 6735 6736 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6737 6738 if (lun->be_lun->lun_type != T_DIRECT) 6739 control_dev = 1; 6740 else 6741 control_dev = 0; 6742 6743 switch (ctsio->cdb[0]) { 6744 case MODE_SELECT_6: { 6745 struct scsi_mode_select_6 *cdb; 6746 6747 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6748 6749 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6750 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6751 6752 param_len = cdb->length; 6753 header_size = sizeof(struct scsi_mode_header_6); 6754 break; 6755 } 6756 case MODE_SELECT_10: { 6757 struct scsi_mode_select_10 *cdb; 6758 6759 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6760 6761 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6762 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6763 6764 param_len = scsi_2btoul(cdb->length); 6765 header_size = sizeof(struct scsi_mode_header_10); 6766 break; 6767 } 6768 default: 6769 ctl_set_invalid_opcode(ctsio); 6770 ctl_done((union ctl_io *)ctsio); 6771 return (CTL_RETVAL_COMPLETE); 6772 break; /* NOTREACHED */ 6773 } 6774 6775 /* 6776 * From SPC-3: 6777 * "A parameter list length of zero indicates that the Data-Out Buffer 6778 * shall be empty. This condition shall not be considered as an error." 6779 */ 6780 if (param_len == 0) { 6781 ctl_set_success(ctsio); 6782 ctl_done((union ctl_io *)ctsio); 6783 return (CTL_RETVAL_COMPLETE); 6784 } 6785 6786 /* 6787 * Since we'll hit this the first time through, prior to 6788 * allocation, we don't need to free a data buffer here. 6789 */ 6790 if (param_len < header_size) { 6791 ctl_set_param_len_error(ctsio); 6792 ctl_done((union ctl_io *)ctsio); 6793 return (CTL_RETVAL_COMPLETE); 6794 } 6795 6796 /* 6797 * Allocate the data buffer and grab the user's data. In theory, 6798 * we shouldn't have to sanity check the parameter list length here 6799 * because the maximum size is 64K. We should be able to malloc 6800 * that much without too many problems. 6801 */ 6802 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6803 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6804 ctsio->kern_data_len = param_len; 6805 ctsio->kern_total_len = param_len; 6806 ctsio->kern_data_resid = 0; 6807 ctsio->kern_rel_offset = 0; 6808 ctsio->kern_sg_entries = 0; 6809 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6810 ctsio->be_move_done = ctl_config_move_done; 6811 ctl_datamove((union ctl_io *)ctsio); 6812 6813 return (CTL_RETVAL_COMPLETE); 6814 } 6815 6816 switch (ctsio->cdb[0]) { 6817 case MODE_SELECT_6: { 6818 struct scsi_mode_header_6 *mh6; 6819 6820 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6821 bd_len = mh6->blk_desc_len; 6822 break; 6823 } 6824 case MODE_SELECT_10: { 6825 struct scsi_mode_header_10 *mh10; 6826 6827 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6828 bd_len = scsi_2btoul(mh10->blk_desc_len); 6829 break; 6830 } 6831 default: 6832 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6833 break; 6834 } 6835 6836 if (param_len < (header_size + bd_len)) { 6837 free(ctsio->kern_data_ptr, M_CTL); 6838 ctl_set_param_len_error(ctsio); 6839 ctl_done((union ctl_io *)ctsio); 6840 return (CTL_RETVAL_COMPLETE); 6841 } 6842 6843 /* 6844 * Set the IO_CONT flag, so that if this I/O gets passed to 6845 * ctl_config_write_done(), it'll get passed back to 6846 * ctl_do_mode_select() for further processing, or completion if 6847 * we're all done. 6848 */ 6849 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6850 ctsio->io_cont = ctl_do_mode_select; 6851 6852 modepage_info = (union ctl_modepage_info *) 6853 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6854 6855 memset(modepage_info, 0, sizeof(*modepage_info)); 6856 6857 len_left = param_len - header_size - bd_len; 6858 len_used = header_size + bd_len; 6859 6860 modepage_info->header.len_left = len_left; 6861 modepage_info->header.len_used = len_used; 6862 6863 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6864} 6865 6866int 6867ctl_mode_sense(struct ctl_scsiio *ctsio) 6868{ 6869 struct ctl_lun *lun; 6870 int pc, page_code, dbd, llba, subpage; 6871 int alloc_len, page_len, header_len, total_len; 6872 struct scsi_mode_block_descr *block_desc; 6873 struct ctl_page_index *page_index; 6874 int control_dev; 6875 6876 dbd = 0; 6877 llba = 0; 6878 block_desc = NULL; 6879 page_index = NULL; 6880 6881 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6882 6883 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6884 6885 if (lun->be_lun->lun_type != T_DIRECT) 6886 control_dev = 1; 6887 else 6888 control_dev = 0; 6889 6890 if (lun->flags & CTL_LUN_PR_RESERVED) { 6891 uint32_t residx; 6892 6893 /* 6894 * XXX KDM need a lock here. 6895 */ 6896 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6897 if ((lun->res_type == SPR_TYPE_EX_AC 6898 && residx != lun->pr_res_idx) 6899 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6900 || lun->res_type == SPR_TYPE_EX_AC_AR) 6901 && !lun->per_res[residx].registered)) { 6902 ctl_set_reservation_conflict(ctsio); 6903 ctl_done((union ctl_io *)ctsio); 6904 return (CTL_RETVAL_COMPLETE); 6905 } 6906 } 6907 6908 switch (ctsio->cdb[0]) { 6909 case MODE_SENSE_6: { 6910 struct scsi_mode_sense_6 *cdb; 6911 6912 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6913 6914 header_len = sizeof(struct scsi_mode_hdr_6); 6915 if (cdb->byte2 & SMS_DBD) 6916 dbd = 1; 6917 else 6918 header_len += sizeof(struct scsi_mode_block_descr); 6919 6920 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6921 page_code = cdb->page & SMS_PAGE_CODE; 6922 subpage = cdb->subpage; 6923 alloc_len = cdb->length; 6924 break; 6925 } 6926 case MODE_SENSE_10: { 6927 struct scsi_mode_sense_10 *cdb; 6928 6929 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6930 6931 header_len = sizeof(struct scsi_mode_hdr_10); 6932 6933 if (cdb->byte2 & SMS_DBD) 6934 dbd = 1; 6935 else 6936 header_len += sizeof(struct scsi_mode_block_descr); 6937 if (cdb->byte2 & SMS10_LLBAA) 6938 llba = 1; 6939 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6940 page_code = cdb->page & SMS_PAGE_CODE; 6941 subpage = cdb->subpage; 6942 alloc_len = scsi_2btoul(cdb->length); 6943 break; 6944 } 6945 default: 6946 ctl_set_invalid_opcode(ctsio); 6947 ctl_done((union ctl_io *)ctsio); 6948 return (CTL_RETVAL_COMPLETE); 6949 break; /* NOTREACHED */ 6950 } 6951 6952 /* 6953 * We have to make a first pass through to calculate the size of 6954 * the pages that match the user's query. Then we allocate enough 6955 * memory to hold it, and actually copy the data into the buffer. 6956 */ 6957 switch (page_code) { 6958 case SMS_ALL_PAGES_PAGE: { 6959 int i; 6960 6961 page_len = 0; 6962 6963 /* 6964 * At the moment, values other than 0 and 0xff here are 6965 * reserved according to SPC-3. 6966 */ 6967 if ((subpage != SMS_SUBPAGE_PAGE_0) 6968 && (subpage != SMS_SUBPAGE_ALL)) { 6969 ctl_set_invalid_field(ctsio, 6970 /*sks_valid*/ 1, 6971 /*command*/ 1, 6972 /*field*/ 3, 6973 /*bit_valid*/ 0, 6974 /*bit*/ 0); 6975 ctl_done((union ctl_io *)ctsio); 6976 return (CTL_RETVAL_COMPLETE); 6977 } 6978 6979 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6980 if ((control_dev != 0) 6981 && (lun->mode_pages.index[i].page_flags & 6982 CTL_PAGE_FLAG_DISK_ONLY)) 6983 continue; 6984 6985 /* 6986 * We don't use this subpage if the user didn't 6987 * request all subpages. 6988 */ 6989 if ((lun->mode_pages.index[i].subpage != 0) 6990 && (subpage == SMS_SUBPAGE_PAGE_0)) 6991 continue; 6992 6993#if 0 6994 printf("found page %#x len %d\n", 6995 lun->mode_pages.index[i].page_code & 6996 SMPH_PC_MASK, 6997 lun->mode_pages.index[i].page_len); 6998#endif 6999 page_len += lun->mode_pages.index[i].page_len; 7000 } 7001 break; 7002 } 7003 default: { 7004 int i; 7005 7006 page_len = 0; 7007 7008 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7009 /* Look for the right page code */ 7010 if ((lun->mode_pages.index[i].page_code & 7011 SMPH_PC_MASK) != page_code) 7012 continue; 7013 7014 /* Look for the right subpage or the subpage wildcard*/ 7015 if ((lun->mode_pages.index[i].subpage != subpage) 7016 && (subpage != SMS_SUBPAGE_ALL)) 7017 continue; 7018 7019 /* Make sure the page is supported for this dev type */ 7020 if ((control_dev != 0) 7021 && (lun->mode_pages.index[i].page_flags & 7022 CTL_PAGE_FLAG_DISK_ONLY)) 7023 continue; 7024 7025#if 0 7026 printf("found page %#x len %d\n", 7027 lun->mode_pages.index[i].page_code & 7028 SMPH_PC_MASK, 7029 lun->mode_pages.index[i].page_len); 7030#endif 7031 7032 page_len += lun->mode_pages.index[i].page_len; 7033 } 7034 7035 if (page_len == 0) { 7036 ctl_set_invalid_field(ctsio, 7037 /*sks_valid*/ 1, 7038 /*command*/ 1, 7039 /*field*/ 2, 7040 /*bit_valid*/ 1, 7041 /*bit*/ 5); 7042 ctl_done((union ctl_io *)ctsio); 7043 return (CTL_RETVAL_COMPLETE); 7044 } 7045 break; 7046 } 7047 } 7048 7049 total_len = header_len + page_len; 7050#if 0 7051 printf("header_len = %d, page_len = %d, total_len = %d\n", 7052 header_len, page_len, total_len); 7053#endif 7054 7055 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7056 ctsio->kern_sg_entries = 0; 7057 ctsio->kern_data_resid = 0; 7058 ctsio->kern_rel_offset = 0; 7059 if (total_len < alloc_len) { 7060 ctsio->residual = alloc_len - total_len; 7061 ctsio->kern_data_len = total_len; 7062 ctsio->kern_total_len = total_len; 7063 } else { 7064 ctsio->residual = 0; 7065 ctsio->kern_data_len = alloc_len; 7066 ctsio->kern_total_len = alloc_len; 7067 } 7068 7069 switch (ctsio->cdb[0]) { 7070 case MODE_SENSE_6: { 7071 struct scsi_mode_hdr_6 *header; 7072 7073 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7074 7075 header->datalen = ctl_min(total_len - 1, 254); 7076 7077 if (dbd) 7078 header->block_descr_len = 0; 7079 else 7080 header->block_descr_len = 7081 sizeof(struct scsi_mode_block_descr); 7082 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7083 break; 7084 } 7085 case MODE_SENSE_10: { 7086 struct scsi_mode_hdr_10 *header; 7087 int datalen; 7088 7089 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7090 7091 datalen = ctl_min(total_len - 2, 65533); 7092 scsi_ulto2b(datalen, header->datalen); 7093 if (dbd) 7094 scsi_ulto2b(0, header->block_descr_len); 7095 else 7096 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7097 header->block_descr_len); 7098 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7099 break; 7100 } 7101 default: 7102 panic("invalid CDB type %#x", ctsio->cdb[0]); 7103 break; /* NOTREACHED */ 7104 } 7105 7106 /* 7107 * If we've got a disk, use its blocksize in the block 7108 * descriptor. Otherwise, just set it to 0. 7109 */ 7110 if (dbd == 0) { 7111 if (control_dev != 0) 7112 scsi_ulto3b(lun->be_lun->blocksize, 7113 block_desc->block_len); 7114 else 7115 scsi_ulto3b(0, block_desc->block_len); 7116 } 7117 7118 switch (page_code) { 7119 case SMS_ALL_PAGES_PAGE: { 7120 int i, data_used; 7121 7122 data_used = header_len; 7123 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7124 struct ctl_page_index *page_index; 7125 7126 page_index = &lun->mode_pages.index[i]; 7127 7128 if ((control_dev != 0) 7129 && (page_index->page_flags & 7130 CTL_PAGE_FLAG_DISK_ONLY)) 7131 continue; 7132 7133 /* 7134 * We don't use this subpage if the user didn't 7135 * request all subpages. We already checked (above) 7136 * to make sure the user only specified a subpage 7137 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7138 */ 7139 if ((page_index->subpage != 0) 7140 && (subpage == SMS_SUBPAGE_PAGE_0)) 7141 continue; 7142 7143 /* 7144 * Call the handler, if it exists, to update the 7145 * page to the latest values. 7146 */ 7147 if (page_index->sense_handler != NULL) 7148 page_index->sense_handler(ctsio, page_index,pc); 7149 7150 memcpy(ctsio->kern_data_ptr + data_used, 7151 page_index->page_data + 7152 (page_index->page_len * pc), 7153 page_index->page_len); 7154 data_used += page_index->page_len; 7155 } 7156 break; 7157 } 7158 default: { 7159 int i, data_used; 7160 7161 data_used = header_len; 7162 7163 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7164 struct ctl_page_index *page_index; 7165 7166 page_index = &lun->mode_pages.index[i]; 7167 7168 /* Look for the right page code */ 7169 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7170 continue; 7171 7172 /* Look for the right subpage or the subpage wildcard*/ 7173 if ((page_index->subpage != subpage) 7174 && (subpage != SMS_SUBPAGE_ALL)) 7175 continue; 7176 7177 /* Make sure the page is supported for this dev type */ 7178 if ((control_dev != 0) 7179 && (page_index->page_flags & 7180 CTL_PAGE_FLAG_DISK_ONLY)) 7181 continue; 7182 7183 /* 7184 * Call the handler, if it exists, to update the 7185 * page to the latest values. 7186 */ 7187 if (page_index->sense_handler != NULL) 7188 page_index->sense_handler(ctsio, page_index,pc); 7189 7190 memcpy(ctsio->kern_data_ptr + data_used, 7191 page_index->page_data + 7192 (page_index->page_len * pc), 7193 page_index->page_len); 7194 data_used += page_index->page_len; 7195 } 7196 break; 7197 } 7198 } 7199 7200 ctsio->scsi_status = SCSI_STATUS_OK; 7201 7202 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7203 ctsio->be_move_done = ctl_config_move_done; 7204 ctl_datamove((union ctl_io *)ctsio); 7205 7206 return (CTL_RETVAL_COMPLETE); 7207} 7208 7209int 7210ctl_read_capacity(struct ctl_scsiio *ctsio) 7211{ 7212 struct scsi_read_capacity *cdb; 7213 struct scsi_read_capacity_data *data; 7214 struct ctl_lun *lun; 7215 uint32_t lba; 7216 7217 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7218 7219 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7220 7221 lba = scsi_4btoul(cdb->addr); 7222 if (((cdb->pmi & SRC_PMI) == 0) 7223 && (lba != 0)) { 7224 ctl_set_invalid_field(/*ctsio*/ ctsio, 7225 /*sks_valid*/ 1, 7226 /*command*/ 1, 7227 /*field*/ 2, 7228 /*bit_valid*/ 0, 7229 /*bit*/ 0); 7230 ctl_done((union ctl_io *)ctsio); 7231 return (CTL_RETVAL_COMPLETE); 7232 } 7233 7234 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7235 7236 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7237 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7238 ctsio->residual = 0; 7239 ctsio->kern_data_len = sizeof(*data); 7240 ctsio->kern_total_len = sizeof(*data); 7241 ctsio->kern_data_resid = 0; 7242 ctsio->kern_rel_offset = 0; 7243 ctsio->kern_sg_entries = 0; 7244 7245 /* 7246 * If the maximum LBA is greater than 0xfffffffe, the user must 7247 * issue a SERVICE ACTION IN (16) command, with the read capacity 7248 * serivce action set. 7249 */ 7250 if (lun->be_lun->maxlba > 0xfffffffe) 7251 scsi_ulto4b(0xffffffff, data->addr); 7252 else 7253 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7254 7255 /* 7256 * XXX KDM this may not be 512 bytes... 7257 */ 7258 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7259 7260 ctsio->scsi_status = SCSI_STATUS_OK; 7261 7262 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7263 ctsio->be_move_done = ctl_config_move_done; 7264 ctl_datamove((union ctl_io *)ctsio); 7265 7266 return (CTL_RETVAL_COMPLETE); 7267} 7268 7269int 7270ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7271{ 7272 struct scsi_read_capacity_16 *cdb; 7273 struct scsi_read_capacity_data_long *data; 7274 struct ctl_lun *lun; 7275 uint64_t lba; 7276 uint32_t alloc_len; 7277 7278 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7279 7280 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7281 7282 alloc_len = scsi_4btoul(cdb->alloc_len); 7283 lba = scsi_8btou64(cdb->addr); 7284 7285 if ((cdb->reladr & SRC16_PMI) 7286 && (lba != 0)) { 7287 ctl_set_invalid_field(/*ctsio*/ ctsio, 7288 /*sks_valid*/ 1, 7289 /*command*/ 1, 7290 /*field*/ 2, 7291 /*bit_valid*/ 0, 7292 /*bit*/ 0); 7293 ctl_done((union ctl_io *)ctsio); 7294 return (CTL_RETVAL_COMPLETE); 7295 } 7296 7297 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7298 7299 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7300 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7301 7302 if (sizeof(*data) < alloc_len) { 7303 ctsio->residual = alloc_len - sizeof(*data); 7304 ctsio->kern_data_len = sizeof(*data); 7305 ctsio->kern_total_len = sizeof(*data); 7306 } else { 7307 ctsio->residual = 0; 7308 ctsio->kern_data_len = alloc_len; 7309 ctsio->kern_total_len = alloc_len; 7310 } 7311 ctsio->kern_data_resid = 0; 7312 ctsio->kern_rel_offset = 0; 7313 ctsio->kern_sg_entries = 0; 7314 7315 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7316 /* XXX KDM this may not be 512 bytes... */ 7317 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7318 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7319 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7320 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7321 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7322 7323 ctsio->scsi_status = SCSI_STATUS_OK; 7324 7325 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7326 ctsio->be_move_done = ctl_config_move_done; 7327 ctl_datamove((union ctl_io *)ctsio); 7328 7329 return (CTL_RETVAL_COMPLETE); 7330} 7331 7332int 7333ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7334{ 7335 struct scsi_maintenance_in *cdb; 7336 int retval; 7337 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7338 int num_target_port_groups, num_target_ports, single; 7339 struct ctl_lun *lun; 7340 struct ctl_softc *softc; 7341 struct ctl_port *port; 7342 struct scsi_target_group_data *rtg_ptr; 7343 struct scsi_target_group_data_extended *rtg_ext_ptr; 7344 struct scsi_target_port_group_descriptor *tpg_desc; 7345 7346 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7347 7348 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7349 softc = control_softc; 7350 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7351 7352 retval = CTL_RETVAL_COMPLETE; 7353 7354 switch (cdb->byte2 & STG_PDF_MASK) { 7355 case STG_PDF_LENGTH: 7356 ext = 0; 7357 break; 7358 case STG_PDF_EXTENDED: 7359 ext = 1; 7360 break; 7361 default: 7362 ctl_set_invalid_field(/*ctsio*/ ctsio, 7363 /*sks_valid*/ 1, 7364 /*command*/ 1, 7365 /*field*/ 2, 7366 /*bit_valid*/ 1, 7367 /*bit*/ 5); 7368 ctl_done((union ctl_io *)ctsio); 7369 return(retval); 7370 } 7371 7372 single = ctl_is_single; 7373 if (single) 7374 num_target_port_groups = 1; 7375 else 7376 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7377 num_target_ports = 0; 7378 mtx_lock(&softc->ctl_lock); 7379 STAILQ_FOREACH(port, &softc->port_list, links) { 7380 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7381 continue; 7382 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7383 continue; 7384 num_target_ports++; 7385 } 7386 mtx_unlock(&softc->ctl_lock); 7387 7388 if (ext) 7389 total_len = sizeof(struct scsi_target_group_data_extended); 7390 else 7391 total_len = sizeof(struct scsi_target_group_data); 7392 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7393 num_target_port_groups + 7394 sizeof(struct scsi_target_port_descriptor) * 7395 num_target_ports * num_target_port_groups; 7396 7397 alloc_len = scsi_4btoul(cdb->length); 7398 7399 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7400 7401 ctsio->kern_sg_entries = 0; 7402 7403 if (total_len < alloc_len) { 7404 ctsio->residual = alloc_len - total_len; 7405 ctsio->kern_data_len = total_len; 7406 ctsio->kern_total_len = total_len; 7407 } else { 7408 ctsio->residual = 0; 7409 ctsio->kern_data_len = alloc_len; 7410 ctsio->kern_total_len = alloc_len; 7411 } 7412 ctsio->kern_data_resid = 0; 7413 ctsio->kern_rel_offset = 0; 7414 7415 if (ext) { 7416 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7417 ctsio->kern_data_ptr; 7418 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7419 rtg_ext_ptr->format_type = 0x10; 7420 rtg_ext_ptr->implicit_transition_time = 0; 7421 tpg_desc = &rtg_ext_ptr->groups[0]; 7422 } else { 7423 rtg_ptr = (struct scsi_target_group_data *) 7424 ctsio->kern_data_ptr; 7425 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7426 tpg_desc = &rtg_ptr->groups[0]; 7427 } 7428 7429 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7430 mtx_lock(&softc->ctl_lock); 7431 for (g = 0; g < num_target_port_groups; g++) { 7432 if (g == pg) 7433 tpg_desc->pref_state = TPG_PRIMARY | 7434 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7435 else 7436 tpg_desc->pref_state = 7437 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7438 tpg_desc->support = TPG_AO_SUP; 7439 if (!single) 7440 tpg_desc->support |= TPG_AN_SUP; 7441 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7442 tpg_desc->status = TPG_IMPLICIT; 7443 pc = 0; 7444 STAILQ_FOREACH(port, &softc->port_list, links) { 7445 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7446 continue; 7447 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7448 CTL_MAX_LUNS) 7449 continue; 7450 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7451 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7452 relative_target_port_identifier); 7453 pc++; 7454 } 7455 tpg_desc->target_port_count = pc; 7456 tpg_desc = (struct scsi_target_port_group_descriptor *) 7457 &tpg_desc->descriptors[pc]; 7458 } 7459 mtx_unlock(&softc->ctl_lock); 7460 7461 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7462 ctsio->be_move_done = ctl_config_move_done; 7463 7464 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7465 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7466 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7467 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7468 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7469 7470 ctl_datamove((union ctl_io *)ctsio); 7471 return(retval); 7472} 7473 7474int 7475ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7476{ 7477 struct ctl_lun *lun; 7478 struct scsi_report_supported_opcodes *cdb; 7479 const struct ctl_cmd_entry *entry, *sentry; 7480 struct scsi_report_supported_opcodes_all *all; 7481 struct scsi_report_supported_opcodes_descr *descr; 7482 struct scsi_report_supported_opcodes_one *one; 7483 int retval; 7484 int alloc_len, total_len; 7485 int opcode, service_action, i, j, num; 7486 7487 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7488 7489 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7490 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7491 7492 retval = CTL_RETVAL_COMPLETE; 7493 7494 opcode = cdb->requested_opcode; 7495 service_action = scsi_2btoul(cdb->requested_service_action); 7496 switch (cdb->options & RSO_OPTIONS_MASK) { 7497 case RSO_OPTIONS_ALL: 7498 num = 0; 7499 for (i = 0; i < 256; i++) { 7500 entry = &ctl_cmd_table[i]; 7501 if (entry->flags & CTL_CMD_FLAG_SA5) { 7502 for (j = 0; j < 32; j++) { 7503 sentry = &((const struct ctl_cmd_entry *) 7504 entry->execute)[j]; 7505 if (ctl_cmd_applicable( 7506 lun->be_lun->lun_type, sentry)) 7507 num++; 7508 } 7509 } else { 7510 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7511 entry)) 7512 num++; 7513 } 7514 } 7515 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7516 num * sizeof(struct scsi_report_supported_opcodes_descr); 7517 break; 7518 case RSO_OPTIONS_OC: 7519 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7520 ctl_set_invalid_field(/*ctsio*/ ctsio, 7521 /*sks_valid*/ 1, 7522 /*command*/ 1, 7523 /*field*/ 2, 7524 /*bit_valid*/ 1, 7525 /*bit*/ 2); 7526 ctl_done((union ctl_io *)ctsio); 7527 return (CTL_RETVAL_COMPLETE); 7528 } 7529 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7530 break; 7531 case RSO_OPTIONS_OC_SA: 7532 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7533 service_action >= 32) { 7534 ctl_set_invalid_field(/*ctsio*/ ctsio, 7535 /*sks_valid*/ 1, 7536 /*command*/ 1, 7537 /*field*/ 2, 7538 /*bit_valid*/ 1, 7539 /*bit*/ 2); 7540 ctl_done((union ctl_io *)ctsio); 7541 return (CTL_RETVAL_COMPLETE); 7542 } 7543 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7544 break; 7545 default: 7546 ctl_set_invalid_field(/*ctsio*/ ctsio, 7547 /*sks_valid*/ 1, 7548 /*command*/ 1, 7549 /*field*/ 2, 7550 /*bit_valid*/ 1, 7551 /*bit*/ 2); 7552 ctl_done((union ctl_io *)ctsio); 7553 return (CTL_RETVAL_COMPLETE); 7554 } 7555 7556 alloc_len = scsi_4btoul(cdb->length); 7557 7558 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7559 7560 ctsio->kern_sg_entries = 0; 7561 7562 if (total_len < alloc_len) { 7563 ctsio->residual = alloc_len - total_len; 7564 ctsio->kern_data_len = total_len; 7565 ctsio->kern_total_len = total_len; 7566 } else { 7567 ctsio->residual = 0; 7568 ctsio->kern_data_len = alloc_len; 7569 ctsio->kern_total_len = alloc_len; 7570 } 7571 ctsio->kern_data_resid = 0; 7572 ctsio->kern_rel_offset = 0; 7573 7574 switch (cdb->options & RSO_OPTIONS_MASK) { 7575 case RSO_OPTIONS_ALL: 7576 all = (struct scsi_report_supported_opcodes_all *) 7577 ctsio->kern_data_ptr; 7578 num = 0; 7579 for (i = 0; i < 256; i++) { 7580 entry = &ctl_cmd_table[i]; 7581 if (entry->flags & CTL_CMD_FLAG_SA5) { 7582 for (j = 0; j < 32; j++) { 7583 sentry = &((const struct ctl_cmd_entry *) 7584 entry->execute)[j]; 7585 if (!ctl_cmd_applicable( 7586 lun->be_lun->lun_type, sentry)) 7587 continue; 7588 descr = &all->descr[num++]; 7589 descr->opcode = i; 7590 scsi_ulto2b(j, descr->service_action); 7591 descr->flags = RSO_SERVACTV; 7592 scsi_ulto2b(sentry->length, 7593 descr->cdb_length); 7594 } 7595 } else { 7596 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7597 entry)) 7598 continue; 7599 descr = &all->descr[num++]; 7600 descr->opcode = i; 7601 scsi_ulto2b(0, descr->service_action); 7602 descr->flags = 0; 7603 scsi_ulto2b(entry->length, descr->cdb_length); 7604 } 7605 } 7606 scsi_ulto4b( 7607 num * sizeof(struct scsi_report_supported_opcodes_descr), 7608 all->length); 7609 break; 7610 case RSO_OPTIONS_OC: 7611 one = (struct scsi_report_supported_opcodes_one *) 7612 ctsio->kern_data_ptr; 7613 entry = &ctl_cmd_table[opcode]; 7614 goto fill_one; 7615 case RSO_OPTIONS_OC_SA: 7616 one = (struct scsi_report_supported_opcodes_one *) 7617 ctsio->kern_data_ptr; 7618 entry = &ctl_cmd_table[opcode]; 7619 entry = &((const struct ctl_cmd_entry *) 7620 entry->execute)[service_action]; 7621fill_one: 7622 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7623 one->support = 3; 7624 scsi_ulto2b(entry->length, one->cdb_length); 7625 one->cdb_usage[0] = opcode; 7626 memcpy(&one->cdb_usage[1], entry->usage, 7627 entry->length - 1); 7628 } else 7629 one->support = 1; 7630 break; 7631 } 7632 7633 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7634 ctsio->be_move_done = ctl_config_move_done; 7635 7636 ctl_datamove((union ctl_io *)ctsio); 7637 return(retval); 7638} 7639 7640int 7641ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7642{ 7643 struct ctl_lun *lun; 7644 struct scsi_report_supported_tmf *cdb; 7645 struct scsi_report_supported_tmf_data *data; 7646 int retval; 7647 int alloc_len, total_len; 7648 7649 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7650 7651 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7652 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7653 7654 retval = CTL_RETVAL_COMPLETE; 7655 7656 total_len = sizeof(struct scsi_report_supported_tmf_data); 7657 alloc_len = scsi_4btoul(cdb->length); 7658 7659 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7660 7661 ctsio->kern_sg_entries = 0; 7662 7663 if (total_len < alloc_len) { 7664 ctsio->residual = alloc_len - total_len; 7665 ctsio->kern_data_len = total_len; 7666 ctsio->kern_total_len = total_len; 7667 } else { 7668 ctsio->residual = 0; 7669 ctsio->kern_data_len = alloc_len; 7670 ctsio->kern_total_len = alloc_len; 7671 } 7672 ctsio->kern_data_resid = 0; 7673 ctsio->kern_rel_offset = 0; 7674 7675 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7676 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7677 data->byte2 |= RST_ITNRS; 7678 7679 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7680 ctsio->be_move_done = ctl_config_move_done; 7681 7682 ctl_datamove((union ctl_io *)ctsio); 7683 return (retval); 7684} 7685 7686int 7687ctl_report_timestamp(struct ctl_scsiio *ctsio) 7688{ 7689 struct ctl_lun *lun; 7690 struct scsi_report_timestamp *cdb; 7691 struct scsi_report_timestamp_data *data; 7692 struct timeval tv; 7693 int64_t timestamp; 7694 int retval; 7695 int alloc_len, total_len; 7696 7697 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7698 7699 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7700 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7701 7702 retval = CTL_RETVAL_COMPLETE; 7703 7704 total_len = sizeof(struct scsi_report_timestamp_data); 7705 alloc_len = scsi_4btoul(cdb->length); 7706 7707 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7708 7709 ctsio->kern_sg_entries = 0; 7710 7711 if (total_len < alloc_len) { 7712 ctsio->residual = alloc_len - total_len; 7713 ctsio->kern_data_len = total_len; 7714 ctsio->kern_total_len = total_len; 7715 } else { 7716 ctsio->residual = 0; 7717 ctsio->kern_data_len = alloc_len; 7718 ctsio->kern_total_len = alloc_len; 7719 } 7720 ctsio->kern_data_resid = 0; 7721 ctsio->kern_rel_offset = 0; 7722 7723 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7724 scsi_ulto2b(sizeof(*data) - 2, data->length); 7725 data->origin = RTS_ORIG_OUTSIDE; 7726 getmicrotime(&tv); 7727 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7728 scsi_ulto4b(timestamp >> 16, data->timestamp); 7729 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7730 7731 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7732 ctsio->be_move_done = ctl_config_move_done; 7733 7734 ctl_datamove((union ctl_io *)ctsio); 7735 return (retval); 7736} 7737 7738int 7739ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7740{ 7741 struct scsi_per_res_in *cdb; 7742 int alloc_len, total_len = 0; 7743 /* struct scsi_per_res_in_rsrv in_data; */ 7744 struct ctl_lun *lun; 7745 struct ctl_softc *softc; 7746 7747 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7748 7749 softc = control_softc; 7750 7751 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7752 7753 alloc_len = scsi_2btoul(cdb->length); 7754 7755 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7756 7757retry: 7758 mtx_lock(&lun->lun_lock); 7759 switch (cdb->action) { 7760 case SPRI_RK: /* read keys */ 7761 total_len = sizeof(struct scsi_per_res_in_keys) + 7762 lun->pr_key_count * 7763 sizeof(struct scsi_per_res_key); 7764 break; 7765 case SPRI_RR: /* read reservation */ 7766 if (lun->flags & CTL_LUN_PR_RESERVED) 7767 total_len = sizeof(struct scsi_per_res_in_rsrv); 7768 else 7769 total_len = sizeof(struct scsi_per_res_in_header); 7770 break; 7771 case SPRI_RC: /* report capabilities */ 7772 total_len = sizeof(struct scsi_per_res_cap); 7773 break; 7774 case SPRI_RS: /* read full status */ 7775 total_len = sizeof(struct scsi_per_res_in_header) + 7776 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7777 lun->pr_key_count; 7778 break; 7779 default: 7780 panic("Invalid PR type %x", cdb->action); 7781 } 7782 mtx_unlock(&lun->lun_lock); 7783 7784 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7785 7786 if (total_len < alloc_len) { 7787 ctsio->residual = alloc_len - total_len; 7788 ctsio->kern_data_len = total_len; 7789 ctsio->kern_total_len = total_len; 7790 } else { 7791 ctsio->residual = 0; 7792 ctsio->kern_data_len = alloc_len; 7793 ctsio->kern_total_len = alloc_len; 7794 } 7795 7796 ctsio->kern_data_resid = 0; 7797 ctsio->kern_rel_offset = 0; 7798 ctsio->kern_sg_entries = 0; 7799 7800 mtx_lock(&lun->lun_lock); 7801 switch (cdb->action) { 7802 case SPRI_RK: { // read keys 7803 struct scsi_per_res_in_keys *res_keys; 7804 int i, key_count; 7805 7806 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7807 7808 /* 7809 * We had to drop the lock to allocate our buffer, which 7810 * leaves time for someone to come in with another 7811 * persistent reservation. (That is unlikely, though, 7812 * since this should be the only persistent reservation 7813 * command active right now.) 7814 */ 7815 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7816 (lun->pr_key_count * 7817 sizeof(struct scsi_per_res_key)))){ 7818 mtx_unlock(&lun->lun_lock); 7819 free(ctsio->kern_data_ptr, M_CTL); 7820 printf("%s: reservation length changed, retrying\n", 7821 __func__); 7822 goto retry; 7823 } 7824 7825 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7826 7827 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7828 lun->pr_key_count, res_keys->header.length); 7829 7830 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7831 if (!lun->per_res[i].registered) 7832 continue; 7833 7834 /* 7835 * We used lun->pr_key_count to calculate the 7836 * size to allocate. If it turns out the number of 7837 * initiators with the registered flag set is 7838 * larger than that (i.e. they haven't been kept in 7839 * sync), we've got a problem. 7840 */ 7841 if (key_count >= lun->pr_key_count) { 7842#ifdef NEEDTOPORT 7843 csevent_log(CSC_CTL | CSC_SHELF_SW | 7844 CTL_PR_ERROR, 7845 csevent_LogType_Fault, 7846 csevent_AlertLevel_Yellow, 7847 csevent_FRU_ShelfController, 7848 csevent_FRU_Firmware, 7849 csevent_FRU_Unknown, 7850 "registered keys %d >= key " 7851 "count %d", key_count, 7852 lun->pr_key_count); 7853#endif 7854 key_count++; 7855 continue; 7856 } 7857 memcpy(res_keys->keys[key_count].key, 7858 lun->per_res[i].res_key.key, 7859 ctl_min(sizeof(res_keys->keys[key_count].key), 7860 sizeof(lun->per_res[i].res_key))); 7861 key_count++; 7862 } 7863 break; 7864 } 7865 case SPRI_RR: { // read reservation 7866 struct scsi_per_res_in_rsrv *res; 7867 int tmp_len, header_only; 7868 7869 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7870 7871 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7872 7873 if (lun->flags & CTL_LUN_PR_RESERVED) 7874 { 7875 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7876 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7877 res->header.length); 7878 header_only = 0; 7879 } else { 7880 tmp_len = sizeof(struct scsi_per_res_in_header); 7881 scsi_ulto4b(0, res->header.length); 7882 header_only = 1; 7883 } 7884 7885 /* 7886 * We had to drop the lock to allocate our buffer, which 7887 * leaves time for someone to come in with another 7888 * persistent reservation. (That is unlikely, though, 7889 * since this should be the only persistent reservation 7890 * command active right now.) 7891 */ 7892 if (tmp_len != total_len) { 7893 mtx_unlock(&lun->lun_lock); 7894 free(ctsio->kern_data_ptr, M_CTL); 7895 printf("%s: reservation status changed, retrying\n", 7896 __func__); 7897 goto retry; 7898 } 7899 7900 /* 7901 * No reservation held, so we're done. 7902 */ 7903 if (header_only != 0) 7904 break; 7905 7906 /* 7907 * If the registration is an All Registrants type, the key 7908 * is 0, since it doesn't really matter. 7909 */ 7910 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7911 memcpy(res->data.reservation, 7912 &lun->per_res[lun->pr_res_idx].res_key, 7913 sizeof(struct scsi_per_res_key)); 7914 } 7915 res->data.scopetype = lun->res_type; 7916 break; 7917 } 7918 case SPRI_RC: //report capabilities 7919 { 7920 struct scsi_per_res_cap *res_cap; 7921 uint16_t type_mask; 7922 7923 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7924 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7925 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7926 type_mask = SPRI_TM_WR_EX_AR | 7927 SPRI_TM_EX_AC_RO | 7928 SPRI_TM_WR_EX_RO | 7929 SPRI_TM_EX_AC | 7930 SPRI_TM_WR_EX | 7931 SPRI_TM_EX_AC_AR; 7932 scsi_ulto2b(type_mask, res_cap->type_mask); 7933 break; 7934 } 7935 case SPRI_RS: { // read full status 7936 struct scsi_per_res_in_full *res_status; 7937 struct scsi_per_res_in_full_desc *res_desc; 7938 struct ctl_port *port; 7939 int i, len; 7940 7941 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7942 7943 /* 7944 * We had to drop the lock to allocate our buffer, which 7945 * leaves time for someone to come in with another 7946 * persistent reservation. (That is unlikely, though, 7947 * since this should be the only persistent reservation 7948 * command active right now.) 7949 */ 7950 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7951 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7952 lun->pr_key_count)){ 7953 mtx_unlock(&lun->lun_lock); 7954 free(ctsio->kern_data_ptr, M_CTL); 7955 printf("%s: reservation length changed, retrying\n", 7956 __func__); 7957 goto retry; 7958 } 7959 7960 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7961 7962 res_desc = &res_status->desc[0]; 7963 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7964 if (!lun->per_res[i].registered) 7965 continue; 7966 7967 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7968 sizeof(res_desc->res_key)); 7969 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7970 (lun->pr_res_idx == i || 7971 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7972 res_desc->flags = SPRI_FULL_R_HOLDER; 7973 res_desc->scopetype = lun->res_type; 7974 } 7975 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7976 res_desc->rel_trgt_port_id); 7977 len = 0; 7978 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7979 if (port != NULL) 7980 len = ctl_create_iid(port, 7981 i % CTL_MAX_INIT_PER_PORT, 7982 res_desc->transport_id); 7983 scsi_ulto4b(len, res_desc->additional_length); 7984 res_desc = (struct scsi_per_res_in_full_desc *) 7985 &res_desc->transport_id[len]; 7986 } 7987 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7988 res_status->header.length); 7989 break; 7990 } 7991 default: 7992 /* 7993 * This is a bug, because we just checked for this above, 7994 * and should have returned an error. 7995 */ 7996 panic("Invalid PR type %x", cdb->action); 7997 break; /* NOTREACHED */ 7998 } 7999 mtx_unlock(&lun->lun_lock); 8000 8001 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8002 ctsio->be_move_done = ctl_config_move_done; 8003 8004 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8005 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8006 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8007 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8008 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8009 8010 ctl_datamove((union ctl_io *)ctsio); 8011 8012 return (CTL_RETVAL_COMPLETE); 8013} 8014 8015/* 8016 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8017 * it should return. 8018 */ 8019static int 8020ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8021 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8022 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8023 struct scsi_per_res_out_parms* param) 8024{ 8025 union ctl_ha_msg persis_io; 8026 int retval, i; 8027 int isc_retval; 8028 8029 retval = 0; 8030 8031 mtx_lock(&lun->lun_lock); 8032 if (sa_res_key == 0) { 8033 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8034 /* validate scope and type */ 8035 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8036 SPR_LU_SCOPE) { 8037 mtx_unlock(&lun->lun_lock); 8038 ctl_set_invalid_field(/*ctsio*/ ctsio, 8039 /*sks_valid*/ 1, 8040 /*command*/ 1, 8041 /*field*/ 2, 8042 /*bit_valid*/ 1, 8043 /*bit*/ 4); 8044 ctl_done((union ctl_io *)ctsio); 8045 return (1); 8046 } 8047 8048 if (type>8 || type==2 || type==4 || type==0) { 8049 mtx_unlock(&lun->lun_lock); 8050 ctl_set_invalid_field(/*ctsio*/ ctsio, 8051 /*sks_valid*/ 1, 8052 /*command*/ 1, 8053 /*field*/ 2, 8054 /*bit_valid*/ 1, 8055 /*bit*/ 0); 8056 ctl_done((union ctl_io *)ctsio); 8057 return (1); 8058 } 8059 8060 /* temporarily unregister this nexus */ 8061 lun->per_res[residx].registered = 0; 8062 8063 /* 8064 * Unregister everybody else and build UA for 8065 * them 8066 */ 8067 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8068 if (lun->per_res[i].registered == 0) 8069 continue; 8070 8071 if (!persis_offset 8072 && i <CTL_MAX_INITIATORS) 8073 lun->pending_ua[i] |= 8074 CTL_UA_REG_PREEMPT; 8075 else if (persis_offset 8076 && i >= persis_offset) 8077 lun->pending_ua[i-persis_offset] |= 8078 CTL_UA_REG_PREEMPT; 8079 lun->per_res[i].registered = 0; 8080 memset(&lun->per_res[i].res_key, 0, 8081 sizeof(struct scsi_per_res_key)); 8082 } 8083 lun->per_res[residx].registered = 1; 8084 lun->pr_key_count = 1; 8085 lun->res_type = type; 8086 if (lun->res_type != SPR_TYPE_WR_EX_AR 8087 && lun->res_type != SPR_TYPE_EX_AC_AR) 8088 lun->pr_res_idx = residx; 8089 8090 /* send msg to other side */ 8091 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8092 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8093 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8094 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8095 persis_io.pr.pr_info.res_type = type; 8096 memcpy(persis_io.pr.pr_info.sa_res_key, 8097 param->serv_act_res_key, 8098 sizeof(param->serv_act_res_key)); 8099 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8100 &persis_io, sizeof(persis_io), 0)) > 8101 CTL_HA_STATUS_SUCCESS) { 8102 printf("CTL:Persis Out error returned " 8103 "from ctl_ha_msg_send %d\n", 8104 isc_retval); 8105 } 8106 } else { 8107 /* not all registrants */ 8108 mtx_unlock(&lun->lun_lock); 8109 free(ctsio->kern_data_ptr, M_CTL); 8110 ctl_set_invalid_field(ctsio, 8111 /*sks_valid*/ 1, 8112 /*command*/ 0, 8113 /*field*/ 8, 8114 /*bit_valid*/ 0, 8115 /*bit*/ 0); 8116 ctl_done((union ctl_io *)ctsio); 8117 return (1); 8118 } 8119 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8120 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8121 int found = 0; 8122 8123 if (res_key == sa_res_key) { 8124 /* special case */ 8125 /* 8126 * The spec implies this is not good but doesn't 8127 * say what to do. There are two choices either 8128 * generate a res conflict or check condition 8129 * with illegal field in parameter data. Since 8130 * that is what is done when the sa_res_key is 8131 * zero I'll take that approach since this has 8132 * to do with the sa_res_key. 8133 */ 8134 mtx_unlock(&lun->lun_lock); 8135 free(ctsio->kern_data_ptr, M_CTL); 8136 ctl_set_invalid_field(ctsio, 8137 /*sks_valid*/ 1, 8138 /*command*/ 0, 8139 /*field*/ 8, 8140 /*bit_valid*/ 0, 8141 /*bit*/ 0); 8142 ctl_done((union ctl_io *)ctsio); 8143 return (1); 8144 } 8145 8146 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8147 if (lun->per_res[i].registered 8148 && memcmp(param->serv_act_res_key, 8149 lun->per_res[i].res_key.key, 8150 sizeof(struct scsi_per_res_key)) != 0) 8151 continue; 8152 8153 found = 1; 8154 lun->per_res[i].registered = 0; 8155 memset(&lun->per_res[i].res_key, 0, 8156 sizeof(struct scsi_per_res_key)); 8157 lun->pr_key_count--; 8158 8159 if (!persis_offset && i < CTL_MAX_INITIATORS) 8160 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8161 else if (persis_offset && i >= persis_offset) 8162 lun->pending_ua[i-persis_offset] |= 8163 CTL_UA_REG_PREEMPT; 8164 } 8165 if (!found) { 8166 mtx_unlock(&lun->lun_lock); 8167 free(ctsio->kern_data_ptr, M_CTL); 8168 ctl_set_reservation_conflict(ctsio); 8169 ctl_done((union ctl_io *)ctsio); 8170 return (CTL_RETVAL_COMPLETE); 8171 } 8172 /* send msg to other side */ 8173 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8174 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8175 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8176 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8177 persis_io.pr.pr_info.res_type = type; 8178 memcpy(persis_io.pr.pr_info.sa_res_key, 8179 param->serv_act_res_key, 8180 sizeof(param->serv_act_res_key)); 8181 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8182 &persis_io, sizeof(persis_io), 0)) > 8183 CTL_HA_STATUS_SUCCESS) { 8184 printf("CTL:Persis Out error returned from " 8185 "ctl_ha_msg_send %d\n", isc_retval); 8186 } 8187 } else { 8188 /* Reserved but not all registrants */ 8189 /* sa_res_key is res holder */ 8190 if (memcmp(param->serv_act_res_key, 8191 lun->per_res[lun->pr_res_idx].res_key.key, 8192 sizeof(struct scsi_per_res_key)) == 0) { 8193 /* validate scope and type */ 8194 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8195 SPR_LU_SCOPE) { 8196 mtx_unlock(&lun->lun_lock); 8197 ctl_set_invalid_field(/*ctsio*/ ctsio, 8198 /*sks_valid*/ 1, 8199 /*command*/ 1, 8200 /*field*/ 2, 8201 /*bit_valid*/ 1, 8202 /*bit*/ 4); 8203 ctl_done((union ctl_io *)ctsio); 8204 return (1); 8205 } 8206 8207 if (type>8 || type==2 || type==4 || type==0) { 8208 mtx_unlock(&lun->lun_lock); 8209 ctl_set_invalid_field(/*ctsio*/ ctsio, 8210 /*sks_valid*/ 1, 8211 /*command*/ 1, 8212 /*field*/ 2, 8213 /*bit_valid*/ 1, 8214 /*bit*/ 0); 8215 ctl_done((union ctl_io *)ctsio); 8216 return (1); 8217 } 8218 8219 /* 8220 * Do the following: 8221 * if sa_res_key != res_key remove all 8222 * registrants w/sa_res_key and generate UA 8223 * for these registrants(Registrations 8224 * Preempted) if it wasn't an exclusive 8225 * reservation generate UA(Reservations 8226 * Preempted) for all other registered nexuses 8227 * if the type has changed. Establish the new 8228 * reservation and holder. If res_key and 8229 * sa_res_key are the same do the above 8230 * except don't unregister the res holder. 8231 */ 8232 8233 /* 8234 * Temporarily unregister so it won't get 8235 * removed or UA generated 8236 */ 8237 lun->per_res[residx].registered = 0; 8238 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8239 if (lun->per_res[i].registered == 0) 8240 continue; 8241 8242 if (memcmp(param->serv_act_res_key, 8243 lun->per_res[i].res_key.key, 8244 sizeof(struct scsi_per_res_key)) == 0) { 8245 lun->per_res[i].registered = 0; 8246 memset(&lun->per_res[i].res_key, 8247 0, 8248 sizeof(struct scsi_per_res_key)); 8249 lun->pr_key_count--; 8250 8251 if (!persis_offset 8252 && i < CTL_MAX_INITIATORS) 8253 lun->pending_ua[i] |= 8254 CTL_UA_REG_PREEMPT; 8255 else if (persis_offset 8256 && i >= persis_offset) 8257 lun->pending_ua[i-persis_offset] |= 8258 CTL_UA_REG_PREEMPT; 8259 } else if (type != lun->res_type 8260 && (lun->res_type == SPR_TYPE_WR_EX_RO 8261 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8262 if (!persis_offset 8263 && i < CTL_MAX_INITIATORS) 8264 lun->pending_ua[i] |= 8265 CTL_UA_RES_RELEASE; 8266 else if (persis_offset 8267 && i >= persis_offset) 8268 lun->pending_ua[ 8269 i-persis_offset] |= 8270 CTL_UA_RES_RELEASE; 8271 } 8272 } 8273 lun->per_res[residx].registered = 1; 8274 lun->res_type = type; 8275 if (lun->res_type != SPR_TYPE_WR_EX_AR 8276 && lun->res_type != SPR_TYPE_EX_AC_AR) 8277 lun->pr_res_idx = residx; 8278 else 8279 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8280 8281 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8282 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8283 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8284 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8285 persis_io.pr.pr_info.res_type = type; 8286 memcpy(persis_io.pr.pr_info.sa_res_key, 8287 param->serv_act_res_key, 8288 sizeof(param->serv_act_res_key)); 8289 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8290 &persis_io, sizeof(persis_io), 0)) > 8291 CTL_HA_STATUS_SUCCESS) { 8292 printf("CTL:Persis Out error returned " 8293 "from ctl_ha_msg_send %d\n", 8294 isc_retval); 8295 } 8296 } else { 8297 /* 8298 * sa_res_key is not the res holder just 8299 * remove registrants 8300 */ 8301 int found=0; 8302 8303 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8304 if (memcmp(param->serv_act_res_key, 8305 lun->per_res[i].res_key.key, 8306 sizeof(struct scsi_per_res_key)) != 0) 8307 continue; 8308 8309 found = 1; 8310 lun->per_res[i].registered = 0; 8311 memset(&lun->per_res[i].res_key, 0, 8312 sizeof(struct scsi_per_res_key)); 8313 lun->pr_key_count--; 8314 8315 if (!persis_offset 8316 && i < CTL_MAX_INITIATORS) 8317 lun->pending_ua[i] |= 8318 CTL_UA_REG_PREEMPT; 8319 else if (persis_offset 8320 && i >= persis_offset) 8321 lun->pending_ua[i-persis_offset] |= 8322 CTL_UA_REG_PREEMPT; 8323 } 8324 8325 if (!found) { 8326 mtx_unlock(&lun->lun_lock); 8327 free(ctsio->kern_data_ptr, M_CTL); 8328 ctl_set_reservation_conflict(ctsio); 8329 ctl_done((union ctl_io *)ctsio); 8330 return (1); 8331 } 8332 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8333 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8334 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8335 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8336 persis_io.pr.pr_info.res_type = type; 8337 memcpy(persis_io.pr.pr_info.sa_res_key, 8338 param->serv_act_res_key, 8339 sizeof(param->serv_act_res_key)); 8340 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8341 &persis_io, sizeof(persis_io), 0)) > 8342 CTL_HA_STATUS_SUCCESS) { 8343 printf("CTL:Persis Out error returned " 8344 "from ctl_ha_msg_send %d\n", 8345 isc_retval); 8346 } 8347 } 8348 } 8349 8350 lun->PRGeneration++; 8351 mtx_unlock(&lun->lun_lock); 8352 8353 return (retval); 8354} 8355 8356static void 8357ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8358{ 8359 int i; 8360 8361 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8362 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8363 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8364 msg->pr.pr_info.sa_res_key, 8365 sizeof(struct scsi_per_res_key)) != 0) { 8366 uint64_t sa_res_key; 8367 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8368 8369 if (sa_res_key == 0) { 8370 /* temporarily unregister this nexus */ 8371 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8372 8373 /* 8374 * Unregister everybody else and build UA for 8375 * them 8376 */ 8377 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8378 if (lun->per_res[i].registered == 0) 8379 continue; 8380 8381 if (!persis_offset 8382 && i < CTL_MAX_INITIATORS) 8383 lun->pending_ua[i] |= 8384 CTL_UA_REG_PREEMPT; 8385 else if (persis_offset && i >= persis_offset) 8386 lun->pending_ua[i - persis_offset] |= 8387 CTL_UA_REG_PREEMPT; 8388 lun->per_res[i].registered = 0; 8389 memset(&lun->per_res[i].res_key, 0, 8390 sizeof(struct scsi_per_res_key)); 8391 } 8392 8393 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8394 lun->pr_key_count = 1; 8395 lun->res_type = msg->pr.pr_info.res_type; 8396 if (lun->res_type != SPR_TYPE_WR_EX_AR 8397 && lun->res_type != SPR_TYPE_EX_AC_AR) 8398 lun->pr_res_idx = msg->pr.pr_info.residx; 8399 } else { 8400 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8401 if (memcmp(msg->pr.pr_info.sa_res_key, 8402 lun->per_res[i].res_key.key, 8403 sizeof(struct scsi_per_res_key)) != 0) 8404 continue; 8405 8406 lun->per_res[i].registered = 0; 8407 memset(&lun->per_res[i].res_key, 0, 8408 sizeof(struct scsi_per_res_key)); 8409 lun->pr_key_count--; 8410 8411 if (!persis_offset 8412 && i < persis_offset) 8413 lun->pending_ua[i] |= 8414 CTL_UA_REG_PREEMPT; 8415 else if (persis_offset 8416 && i >= persis_offset) 8417 lun->pending_ua[i - persis_offset] |= 8418 CTL_UA_REG_PREEMPT; 8419 } 8420 } 8421 } else { 8422 /* 8423 * Temporarily unregister so it won't get removed 8424 * or UA generated 8425 */ 8426 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8427 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8428 if (lun->per_res[i].registered == 0) 8429 continue; 8430 8431 if (memcmp(msg->pr.pr_info.sa_res_key, 8432 lun->per_res[i].res_key.key, 8433 sizeof(struct scsi_per_res_key)) == 0) { 8434 lun->per_res[i].registered = 0; 8435 memset(&lun->per_res[i].res_key, 0, 8436 sizeof(struct scsi_per_res_key)); 8437 lun->pr_key_count--; 8438 if (!persis_offset 8439 && i < CTL_MAX_INITIATORS) 8440 lun->pending_ua[i] |= 8441 CTL_UA_REG_PREEMPT; 8442 else if (persis_offset 8443 && i >= persis_offset) 8444 lun->pending_ua[i - persis_offset] |= 8445 CTL_UA_REG_PREEMPT; 8446 } else if (msg->pr.pr_info.res_type != lun->res_type 8447 && (lun->res_type == SPR_TYPE_WR_EX_RO 8448 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8449 if (!persis_offset 8450 && i < persis_offset) 8451 lun->pending_ua[i] |= 8452 CTL_UA_RES_RELEASE; 8453 else if (persis_offset 8454 && i >= persis_offset) 8455 lun->pending_ua[i - persis_offset] |= 8456 CTL_UA_RES_RELEASE; 8457 } 8458 } 8459 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8460 lun->res_type = msg->pr.pr_info.res_type; 8461 if (lun->res_type != SPR_TYPE_WR_EX_AR 8462 && lun->res_type != SPR_TYPE_EX_AC_AR) 8463 lun->pr_res_idx = msg->pr.pr_info.residx; 8464 else 8465 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8466 } 8467 lun->PRGeneration++; 8468 8469} 8470 8471 8472int 8473ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8474{ 8475 int retval; 8476 int isc_retval; 8477 u_int32_t param_len; 8478 struct scsi_per_res_out *cdb; 8479 struct ctl_lun *lun; 8480 struct scsi_per_res_out_parms* param; 8481 struct ctl_softc *softc; 8482 uint32_t residx; 8483 uint64_t res_key, sa_res_key; 8484 uint8_t type; 8485 union ctl_ha_msg persis_io; 8486 int i; 8487 8488 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8489 8490 retval = CTL_RETVAL_COMPLETE; 8491 8492 softc = control_softc; 8493 8494 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8495 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8496 8497 /* 8498 * We only support whole-LUN scope. The scope & type are ignored for 8499 * register, register and ignore existing key and clear. 8500 * We sometimes ignore scope and type on preempts too!! 8501 * Verify reservation type here as well. 8502 */ 8503 type = cdb->scope_type & SPR_TYPE_MASK; 8504 if ((cdb->action == SPRO_RESERVE) 8505 || (cdb->action == SPRO_RELEASE)) { 8506 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8507 ctl_set_invalid_field(/*ctsio*/ ctsio, 8508 /*sks_valid*/ 1, 8509 /*command*/ 1, 8510 /*field*/ 2, 8511 /*bit_valid*/ 1, 8512 /*bit*/ 4); 8513 ctl_done((union ctl_io *)ctsio); 8514 return (CTL_RETVAL_COMPLETE); 8515 } 8516 8517 if (type>8 || type==2 || type==4 || type==0) { 8518 ctl_set_invalid_field(/*ctsio*/ ctsio, 8519 /*sks_valid*/ 1, 8520 /*command*/ 1, 8521 /*field*/ 2, 8522 /*bit_valid*/ 1, 8523 /*bit*/ 0); 8524 ctl_done((union ctl_io *)ctsio); 8525 return (CTL_RETVAL_COMPLETE); 8526 } 8527 } 8528 8529 param_len = scsi_4btoul(cdb->length); 8530 8531 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8532 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8533 ctsio->kern_data_len = param_len; 8534 ctsio->kern_total_len = param_len; 8535 ctsio->kern_data_resid = 0; 8536 ctsio->kern_rel_offset = 0; 8537 ctsio->kern_sg_entries = 0; 8538 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8539 ctsio->be_move_done = ctl_config_move_done; 8540 ctl_datamove((union ctl_io *)ctsio); 8541 8542 return (CTL_RETVAL_COMPLETE); 8543 } 8544 8545 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8546 8547 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8548 res_key = scsi_8btou64(param->res_key.key); 8549 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8550 8551 /* 8552 * Validate the reservation key here except for SPRO_REG_IGNO 8553 * This must be done for all other service actions 8554 */ 8555 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8556 mtx_lock(&lun->lun_lock); 8557 if (lun->per_res[residx].registered) { 8558 if (memcmp(param->res_key.key, 8559 lun->per_res[residx].res_key.key, 8560 ctl_min(sizeof(param->res_key), 8561 sizeof(lun->per_res[residx].res_key))) != 0) { 8562 /* 8563 * The current key passed in doesn't match 8564 * the one the initiator previously 8565 * registered. 8566 */ 8567 mtx_unlock(&lun->lun_lock); 8568 free(ctsio->kern_data_ptr, M_CTL); 8569 ctl_set_reservation_conflict(ctsio); 8570 ctl_done((union ctl_io *)ctsio); 8571 return (CTL_RETVAL_COMPLETE); 8572 } 8573 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8574 /* 8575 * We are not registered 8576 */ 8577 mtx_unlock(&lun->lun_lock); 8578 free(ctsio->kern_data_ptr, M_CTL); 8579 ctl_set_reservation_conflict(ctsio); 8580 ctl_done((union ctl_io *)ctsio); 8581 return (CTL_RETVAL_COMPLETE); 8582 } else if (res_key != 0) { 8583 /* 8584 * We are not registered and trying to register but 8585 * the register key isn't zero. 8586 */ 8587 mtx_unlock(&lun->lun_lock); 8588 free(ctsio->kern_data_ptr, M_CTL); 8589 ctl_set_reservation_conflict(ctsio); 8590 ctl_done((union ctl_io *)ctsio); 8591 return (CTL_RETVAL_COMPLETE); 8592 } 8593 mtx_unlock(&lun->lun_lock); 8594 } 8595 8596 switch (cdb->action & SPRO_ACTION_MASK) { 8597 case SPRO_REGISTER: 8598 case SPRO_REG_IGNO: { 8599 8600#if 0 8601 printf("Registration received\n"); 8602#endif 8603 8604 /* 8605 * We don't support any of these options, as we report in 8606 * the read capabilities request (see 8607 * ctl_persistent_reserve_in(), above). 8608 */ 8609 if ((param->flags & SPR_SPEC_I_PT) 8610 || (param->flags & SPR_ALL_TG_PT) 8611 || (param->flags & SPR_APTPL)) { 8612 int bit_ptr; 8613 8614 if (param->flags & SPR_APTPL) 8615 bit_ptr = 0; 8616 else if (param->flags & SPR_ALL_TG_PT) 8617 bit_ptr = 2; 8618 else /* SPR_SPEC_I_PT */ 8619 bit_ptr = 3; 8620 8621 free(ctsio->kern_data_ptr, M_CTL); 8622 ctl_set_invalid_field(ctsio, 8623 /*sks_valid*/ 1, 8624 /*command*/ 0, 8625 /*field*/ 20, 8626 /*bit_valid*/ 1, 8627 /*bit*/ bit_ptr); 8628 ctl_done((union ctl_io *)ctsio); 8629 return (CTL_RETVAL_COMPLETE); 8630 } 8631 8632 mtx_lock(&lun->lun_lock); 8633 8634 /* 8635 * The initiator wants to clear the 8636 * key/unregister. 8637 */ 8638 if (sa_res_key == 0) { 8639 if ((res_key == 0 8640 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8641 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8642 && !lun->per_res[residx].registered)) { 8643 mtx_unlock(&lun->lun_lock); 8644 goto done; 8645 } 8646 8647 lun->per_res[residx].registered = 0; 8648 memset(&lun->per_res[residx].res_key, 8649 0, sizeof(lun->per_res[residx].res_key)); 8650 lun->pr_key_count--; 8651 8652 if (residx == lun->pr_res_idx) { 8653 lun->flags &= ~CTL_LUN_PR_RESERVED; 8654 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8655 8656 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8657 || lun->res_type == SPR_TYPE_EX_AC_RO) 8658 && lun->pr_key_count) { 8659 /* 8660 * If the reservation is a registrants 8661 * only type we need to generate a UA 8662 * for other registered inits. The 8663 * sense code should be RESERVATIONS 8664 * RELEASED 8665 */ 8666 8667 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8668 if (lun->per_res[ 8669 i+persis_offset].registered 8670 == 0) 8671 continue; 8672 lun->pending_ua[i] |= 8673 CTL_UA_RES_RELEASE; 8674 } 8675 } 8676 lun->res_type = 0; 8677 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8678 if (lun->pr_key_count==0) { 8679 lun->flags &= ~CTL_LUN_PR_RESERVED; 8680 lun->res_type = 0; 8681 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8682 } 8683 } 8684 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8685 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8686 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8687 persis_io.pr.pr_info.residx = residx; 8688 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8689 &persis_io, sizeof(persis_io), 0 )) > 8690 CTL_HA_STATUS_SUCCESS) { 8691 printf("CTL:Persis Out error returned from " 8692 "ctl_ha_msg_send %d\n", isc_retval); 8693 } 8694 } else /* sa_res_key != 0 */ { 8695 8696 /* 8697 * If we aren't registered currently then increment 8698 * the key count and set the registered flag. 8699 */ 8700 if (!lun->per_res[residx].registered) { 8701 lun->pr_key_count++; 8702 lun->per_res[residx].registered = 1; 8703 } 8704 8705 memcpy(&lun->per_res[residx].res_key, 8706 param->serv_act_res_key, 8707 ctl_min(sizeof(param->serv_act_res_key), 8708 sizeof(lun->per_res[residx].res_key))); 8709 8710 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8711 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8712 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8713 persis_io.pr.pr_info.residx = residx; 8714 memcpy(persis_io.pr.pr_info.sa_res_key, 8715 param->serv_act_res_key, 8716 sizeof(param->serv_act_res_key)); 8717 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8718 &persis_io, sizeof(persis_io), 0)) > 8719 CTL_HA_STATUS_SUCCESS) { 8720 printf("CTL:Persis Out error returned from " 8721 "ctl_ha_msg_send %d\n", isc_retval); 8722 } 8723 } 8724 lun->PRGeneration++; 8725 mtx_unlock(&lun->lun_lock); 8726 8727 break; 8728 } 8729 case SPRO_RESERVE: 8730#if 0 8731 printf("Reserve executed type %d\n", type); 8732#endif 8733 mtx_lock(&lun->lun_lock); 8734 if (lun->flags & CTL_LUN_PR_RESERVED) { 8735 /* 8736 * if this isn't the reservation holder and it's 8737 * not a "all registrants" type or if the type is 8738 * different then we have a conflict 8739 */ 8740 if ((lun->pr_res_idx != residx 8741 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8742 || lun->res_type != type) { 8743 mtx_unlock(&lun->lun_lock); 8744 free(ctsio->kern_data_ptr, M_CTL); 8745 ctl_set_reservation_conflict(ctsio); 8746 ctl_done((union ctl_io *)ctsio); 8747 return (CTL_RETVAL_COMPLETE); 8748 } 8749 mtx_unlock(&lun->lun_lock); 8750 } else /* create a reservation */ { 8751 /* 8752 * If it's not an "all registrants" type record 8753 * reservation holder 8754 */ 8755 if (type != SPR_TYPE_WR_EX_AR 8756 && type != SPR_TYPE_EX_AC_AR) 8757 lun->pr_res_idx = residx; /* Res holder */ 8758 else 8759 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8760 8761 lun->flags |= CTL_LUN_PR_RESERVED; 8762 lun->res_type = type; 8763 8764 mtx_unlock(&lun->lun_lock); 8765 8766 /* send msg to other side */ 8767 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8768 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8769 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8770 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8771 persis_io.pr.pr_info.res_type = type; 8772 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8773 &persis_io, sizeof(persis_io), 0)) > 8774 CTL_HA_STATUS_SUCCESS) { 8775 printf("CTL:Persis Out error returned from " 8776 "ctl_ha_msg_send %d\n", isc_retval); 8777 } 8778 } 8779 break; 8780 8781 case SPRO_RELEASE: 8782 mtx_lock(&lun->lun_lock); 8783 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8784 /* No reservation exists return good status */ 8785 mtx_unlock(&lun->lun_lock); 8786 goto done; 8787 } 8788 /* 8789 * Is this nexus a reservation holder? 8790 */ 8791 if (lun->pr_res_idx != residx 8792 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8793 /* 8794 * not a res holder return good status but 8795 * do nothing 8796 */ 8797 mtx_unlock(&lun->lun_lock); 8798 goto done; 8799 } 8800 8801 if (lun->res_type != type) { 8802 mtx_unlock(&lun->lun_lock); 8803 free(ctsio->kern_data_ptr, M_CTL); 8804 ctl_set_illegal_pr_release(ctsio); 8805 ctl_done((union ctl_io *)ctsio); 8806 return (CTL_RETVAL_COMPLETE); 8807 } 8808 8809 /* okay to release */ 8810 lun->flags &= ~CTL_LUN_PR_RESERVED; 8811 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8812 lun->res_type = 0; 8813 8814 /* 8815 * if this isn't an exclusive access 8816 * res generate UA for all other 8817 * registrants. 8818 */ 8819 if (type != SPR_TYPE_EX_AC 8820 && type != SPR_TYPE_WR_EX) { 8821 /* 8822 * temporarily unregister so we don't generate UA 8823 */ 8824 lun->per_res[residx].registered = 0; 8825 8826 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8827 if (lun->per_res[i+persis_offset].registered 8828 == 0) 8829 continue; 8830 lun->pending_ua[i] |= 8831 CTL_UA_RES_RELEASE; 8832 } 8833 8834 lun->per_res[residx].registered = 1; 8835 } 8836 mtx_unlock(&lun->lun_lock); 8837 /* Send msg to other side */ 8838 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8839 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8840 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8841 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8842 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8843 printf("CTL:Persis Out error returned from " 8844 "ctl_ha_msg_send %d\n", isc_retval); 8845 } 8846 break; 8847 8848 case SPRO_CLEAR: 8849 /* send msg to other side */ 8850 8851 mtx_lock(&lun->lun_lock); 8852 lun->flags &= ~CTL_LUN_PR_RESERVED; 8853 lun->res_type = 0; 8854 lun->pr_key_count = 0; 8855 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8856 8857 8858 memset(&lun->per_res[residx].res_key, 8859 0, sizeof(lun->per_res[residx].res_key)); 8860 lun->per_res[residx].registered = 0; 8861 8862 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8863 if (lun->per_res[i].registered) { 8864 if (!persis_offset && i < CTL_MAX_INITIATORS) 8865 lun->pending_ua[i] |= 8866 CTL_UA_RES_PREEMPT; 8867 else if (persis_offset && i >= persis_offset) 8868 lun->pending_ua[i-persis_offset] |= 8869 CTL_UA_RES_PREEMPT; 8870 8871 memset(&lun->per_res[i].res_key, 8872 0, sizeof(struct scsi_per_res_key)); 8873 lun->per_res[i].registered = 0; 8874 } 8875 lun->PRGeneration++; 8876 mtx_unlock(&lun->lun_lock); 8877 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8878 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8879 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8880 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8881 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8882 printf("CTL:Persis Out error returned from " 8883 "ctl_ha_msg_send %d\n", isc_retval); 8884 } 8885 break; 8886 8887 case SPRO_PREEMPT: { 8888 int nretval; 8889 8890 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8891 residx, ctsio, cdb, param); 8892 if (nretval != 0) 8893 return (CTL_RETVAL_COMPLETE); 8894 break; 8895 } 8896 default: 8897 panic("Invalid PR type %x", cdb->action); 8898 } 8899 8900done: 8901 free(ctsio->kern_data_ptr, M_CTL); 8902 ctl_set_success(ctsio); 8903 ctl_done((union ctl_io *)ctsio); 8904 8905 return (retval); 8906} 8907 8908/* 8909 * This routine is for handling a message from the other SC pertaining to 8910 * persistent reserve out. All the error checking will have been done 8911 * so only perorming the action need be done here to keep the two 8912 * in sync. 8913 */ 8914static void 8915ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8916{ 8917 struct ctl_lun *lun; 8918 struct ctl_softc *softc; 8919 int i; 8920 uint32_t targ_lun; 8921 8922 softc = control_softc; 8923 8924 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8925 lun = softc->ctl_luns[targ_lun]; 8926 mtx_lock(&lun->lun_lock); 8927 switch(msg->pr.pr_info.action) { 8928 case CTL_PR_REG_KEY: 8929 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8930 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8931 lun->pr_key_count++; 8932 } 8933 lun->PRGeneration++; 8934 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8935 msg->pr.pr_info.sa_res_key, 8936 sizeof(struct scsi_per_res_key)); 8937 break; 8938 8939 case CTL_PR_UNREG_KEY: 8940 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8941 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8942 0, sizeof(struct scsi_per_res_key)); 8943 lun->pr_key_count--; 8944 8945 /* XXX Need to see if the reservation has been released */ 8946 /* if so do we need to generate UA? */ 8947 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8948 lun->flags &= ~CTL_LUN_PR_RESERVED; 8949 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8950 8951 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8952 || lun->res_type == SPR_TYPE_EX_AC_RO) 8953 && lun->pr_key_count) { 8954 /* 8955 * If the reservation is a registrants 8956 * only type we need to generate a UA 8957 * for other registered inits. The 8958 * sense code should be RESERVATIONS 8959 * RELEASED 8960 */ 8961 8962 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8963 if (lun->per_res[i+ 8964 persis_offset].registered == 0) 8965 continue; 8966 8967 lun->pending_ua[i] |= 8968 CTL_UA_RES_RELEASE; 8969 } 8970 } 8971 lun->res_type = 0; 8972 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8973 if (lun->pr_key_count==0) { 8974 lun->flags &= ~CTL_LUN_PR_RESERVED; 8975 lun->res_type = 0; 8976 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8977 } 8978 } 8979 lun->PRGeneration++; 8980 break; 8981 8982 case CTL_PR_RESERVE: 8983 lun->flags |= CTL_LUN_PR_RESERVED; 8984 lun->res_type = msg->pr.pr_info.res_type; 8985 lun->pr_res_idx = msg->pr.pr_info.residx; 8986 8987 break; 8988 8989 case CTL_PR_RELEASE: 8990 /* 8991 * if this isn't an exclusive access res generate UA for all 8992 * other registrants. 8993 */ 8994 if (lun->res_type != SPR_TYPE_EX_AC 8995 && lun->res_type != SPR_TYPE_WR_EX) { 8996 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8997 if (lun->per_res[i+persis_offset].registered) 8998 lun->pending_ua[i] |= 8999 CTL_UA_RES_RELEASE; 9000 } 9001 9002 lun->flags &= ~CTL_LUN_PR_RESERVED; 9003 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9004 lun->res_type = 0; 9005 break; 9006 9007 case CTL_PR_PREEMPT: 9008 ctl_pro_preempt_other(lun, msg); 9009 break; 9010 case CTL_PR_CLEAR: 9011 lun->flags &= ~CTL_LUN_PR_RESERVED; 9012 lun->res_type = 0; 9013 lun->pr_key_count = 0; 9014 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9015 9016 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9017 if (lun->per_res[i].registered == 0) 9018 continue; 9019 if (!persis_offset 9020 && i < CTL_MAX_INITIATORS) 9021 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 9022 else if (persis_offset 9023 && i >= persis_offset) 9024 lun->pending_ua[i-persis_offset] |= 9025 CTL_UA_RES_PREEMPT; 9026 memset(&lun->per_res[i].res_key, 0, 9027 sizeof(struct scsi_per_res_key)); 9028 lun->per_res[i].registered = 0; 9029 } 9030 lun->PRGeneration++; 9031 break; 9032 } 9033 9034 mtx_unlock(&lun->lun_lock); 9035} 9036 9037int 9038ctl_read_write(struct ctl_scsiio *ctsio) 9039{ 9040 struct ctl_lun *lun; 9041 struct ctl_lba_len_flags *lbalen; 9042 uint64_t lba; 9043 uint32_t num_blocks; 9044 int flags, retval; 9045 int isread; 9046 9047 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9048 9049 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9050 9051 flags = 0; 9052 retval = CTL_RETVAL_COMPLETE; 9053 9054 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9055 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9056 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9057 uint32_t residx; 9058 9059 /* 9060 * XXX KDM need a lock here. 9061 */ 9062 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9063 if ((lun->res_type == SPR_TYPE_EX_AC 9064 && residx != lun->pr_res_idx) 9065 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9066 || lun->res_type == SPR_TYPE_EX_AC_AR) 9067 && !lun->per_res[residx].registered)) { 9068 ctl_set_reservation_conflict(ctsio); 9069 ctl_done((union ctl_io *)ctsio); 9070 return (CTL_RETVAL_COMPLETE); 9071 } 9072 } 9073 9074 switch (ctsio->cdb[0]) { 9075 case READ_6: 9076 case WRITE_6: { 9077 struct scsi_rw_6 *cdb; 9078 9079 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9080 9081 lba = scsi_3btoul(cdb->addr); 9082 /* only 5 bits are valid in the most significant address byte */ 9083 lba &= 0x1fffff; 9084 num_blocks = cdb->length; 9085 /* 9086 * This is correct according to SBC-2. 9087 */ 9088 if (num_blocks == 0) 9089 num_blocks = 256; 9090 break; 9091 } 9092 case READ_10: 9093 case WRITE_10: { 9094 struct scsi_rw_10 *cdb; 9095 9096 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9097 if (cdb->byte2 & SRW10_FUA) 9098 flags |= CTL_LLF_FUA; 9099 if (cdb->byte2 & SRW10_DPO) 9100 flags |= CTL_LLF_DPO; 9101 lba = scsi_4btoul(cdb->addr); 9102 num_blocks = scsi_2btoul(cdb->length); 9103 break; 9104 } 9105 case WRITE_VERIFY_10: { 9106 struct scsi_write_verify_10 *cdb; 9107 9108 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9109 flags |= CTL_LLF_FUA; 9110 if (cdb->byte2 & SWV_DPO) 9111 flags |= CTL_LLF_DPO; 9112 lba = scsi_4btoul(cdb->addr); 9113 num_blocks = scsi_2btoul(cdb->length); 9114 break; 9115 } 9116 case READ_12: 9117 case WRITE_12: { 9118 struct scsi_rw_12 *cdb; 9119 9120 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9121 if (cdb->byte2 & SRW12_FUA) 9122 flags |= CTL_LLF_FUA; 9123 if (cdb->byte2 & SRW12_DPO) 9124 flags |= CTL_LLF_DPO; 9125 lba = scsi_4btoul(cdb->addr); 9126 num_blocks = scsi_4btoul(cdb->length); 9127 break; 9128 } 9129 case WRITE_VERIFY_12: { 9130 struct scsi_write_verify_12 *cdb; 9131 9132 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9133 flags |= CTL_LLF_FUA; 9134 if (cdb->byte2 & SWV_DPO) 9135 flags |= CTL_LLF_DPO; 9136 lba = scsi_4btoul(cdb->addr); 9137 num_blocks = scsi_4btoul(cdb->length); 9138 break; 9139 } 9140 case READ_16: 9141 case WRITE_16: { 9142 struct scsi_rw_16 *cdb; 9143 9144 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9145 if (cdb->byte2 & SRW12_FUA) 9146 flags |= CTL_LLF_FUA; 9147 if (cdb->byte2 & SRW12_DPO) 9148 flags |= CTL_LLF_DPO; 9149 lba = scsi_8btou64(cdb->addr); 9150 num_blocks = scsi_4btoul(cdb->length); 9151 break; 9152 } 9153 case WRITE_VERIFY_16: { 9154 struct scsi_write_verify_16 *cdb; 9155 9156 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9157 flags |= CTL_LLF_FUA; 9158 if (cdb->byte2 & SWV_DPO) 9159 flags |= CTL_LLF_DPO; 9160 lba = scsi_8btou64(cdb->addr); 9161 num_blocks = scsi_4btoul(cdb->length); 9162 break; 9163 } 9164 default: 9165 /* 9166 * We got a command we don't support. This shouldn't 9167 * happen, commands should be filtered out above us. 9168 */ 9169 ctl_set_invalid_opcode(ctsio); 9170 ctl_done((union ctl_io *)ctsio); 9171 9172 return (CTL_RETVAL_COMPLETE); 9173 break; /* NOTREACHED */ 9174 } 9175 9176 /* 9177 * The first check is to make sure we're in bounds, the second 9178 * check is to catch wrap-around problems. If the lba + num blocks 9179 * is less than the lba, then we've wrapped around and the block 9180 * range is invalid anyway. 9181 */ 9182 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9183 || ((lba + num_blocks) < lba)) { 9184 ctl_set_lba_out_of_range(ctsio); 9185 ctl_done((union ctl_io *)ctsio); 9186 return (CTL_RETVAL_COMPLETE); 9187 } 9188 9189 /* 9190 * According to SBC-3, a transfer length of 0 is not an error. 9191 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9192 * translates to 256 blocks for those commands. 9193 */ 9194 if (num_blocks == 0) { 9195 ctl_set_success(ctsio); 9196 ctl_done((union ctl_io *)ctsio); 9197 return (CTL_RETVAL_COMPLETE); 9198 } 9199 9200 /* Set FUA and/or DPO if caches are disabled. */ 9201 if (isread) { 9202 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9203 SCP_RCD) != 0) 9204 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9205 } else { 9206 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9207 SCP_WCE) == 0) 9208 flags |= CTL_LLF_FUA; 9209 } 9210 9211 lbalen = (struct ctl_lba_len_flags *) 9212 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9213 lbalen->lba = lba; 9214 lbalen->len = num_blocks; 9215 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9216 9217 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9218 ctsio->kern_rel_offset = 0; 9219 9220 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9221 9222 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9223 9224 return (retval); 9225} 9226 9227static int 9228ctl_cnw_cont(union ctl_io *io) 9229{ 9230 struct ctl_scsiio *ctsio; 9231 struct ctl_lun *lun; 9232 struct ctl_lba_len_flags *lbalen; 9233 int retval; 9234 9235 ctsio = &io->scsiio; 9236 ctsio->io_hdr.status = CTL_STATUS_NONE; 9237 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9238 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9239 lbalen = (struct ctl_lba_len_flags *) 9240 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9241 lbalen->flags &= ~CTL_LLF_COMPARE; 9242 lbalen->flags |= CTL_LLF_WRITE; 9243 9244 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9245 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9246 return (retval); 9247} 9248 9249int 9250ctl_cnw(struct ctl_scsiio *ctsio) 9251{ 9252 struct ctl_lun *lun; 9253 struct ctl_lba_len_flags *lbalen; 9254 uint64_t lba; 9255 uint32_t num_blocks; 9256 int flags, retval; 9257 9258 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9259 9260 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9261 9262 flags = 0; 9263 retval = CTL_RETVAL_COMPLETE; 9264 9265 switch (ctsio->cdb[0]) { 9266 case COMPARE_AND_WRITE: { 9267 struct scsi_compare_and_write *cdb; 9268 9269 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9270 if (cdb->byte2 & SRW10_FUA) 9271 flags |= CTL_LLF_FUA; 9272 if (cdb->byte2 & SRW10_DPO) 9273 flags |= CTL_LLF_DPO; 9274 lba = scsi_8btou64(cdb->addr); 9275 num_blocks = cdb->length; 9276 break; 9277 } 9278 default: 9279 /* 9280 * We got a command we don't support. This shouldn't 9281 * happen, commands should be filtered out above us. 9282 */ 9283 ctl_set_invalid_opcode(ctsio); 9284 ctl_done((union ctl_io *)ctsio); 9285 9286 return (CTL_RETVAL_COMPLETE); 9287 break; /* NOTREACHED */ 9288 } 9289 9290 /* 9291 * The first check is to make sure we're in bounds, the second 9292 * check is to catch wrap-around problems. If the lba + num blocks 9293 * is less than the lba, then we've wrapped around and the block 9294 * range is invalid anyway. 9295 */ 9296 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9297 || ((lba + num_blocks) < lba)) { 9298 ctl_set_lba_out_of_range(ctsio); 9299 ctl_done((union ctl_io *)ctsio); 9300 return (CTL_RETVAL_COMPLETE); 9301 } 9302 9303 /* 9304 * According to SBC-3, a transfer length of 0 is not an error. 9305 */ 9306 if (num_blocks == 0) { 9307 ctl_set_success(ctsio); 9308 ctl_done((union ctl_io *)ctsio); 9309 return (CTL_RETVAL_COMPLETE); 9310 } 9311 9312 /* Set FUA if write cache is disabled. */ 9313 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9314 SCP_WCE) == 0) 9315 flags |= CTL_LLF_FUA; 9316 9317 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9318 ctsio->kern_rel_offset = 0; 9319 9320 /* 9321 * Set the IO_CONT flag, so that if this I/O gets passed to 9322 * ctl_data_submit_done(), it'll get passed back to 9323 * ctl_ctl_cnw_cont() for further processing. 9324 */ 9325 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9326 ctsio->io_cont = ctl_cnw_cont; 9327 9328 lbalen = (struct ctl_lba_len_flags *) 9329 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9330 lbalen->lba = lba; 9331 lbalen->len = num_blocks; 9332 lbalen->flags = CTL_LLF_COMPARE | flags; 9333 9334 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9335 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9336 return (retval); 9337} 9338 9339int 9340ctl_verify(struct ctl_scsiio *ctsio) 9341{ 9342 struct ctl_lun *lun; 9343 struct ctl_lba_len_flags *lbalen; 9344 uint64_t lba; 9345 uint32_t num_blocks; 9346 int bytchk, flags; 9347 int retval; 9348 9349 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9350 9351 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9352 9353 bytchk = 0; 9354 flags = CTL_LLF_FUA; 9355 retval = CTL_RETVAL_COMPLETE; 9356 9357 switch (ctsio->cdb[0]) { 9358 case VERIFY_10: { 9359 struct scsi_verify_10 *cdb; 9360 9361 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9362 if (cdb->byte2 & SVFY_BYTCHK) 9363 bytchk = 1; 9364 if (cdb->byte2 & SVFY_DPO) 9365 flags |= CTL_LLF_DPO; 9366 lba = scsi_4btoul(cdb->addr); 9367 num_blocks = scsi_2btoul(cdb->length); 9368 break; 9369 } 9370 case VERIFY_12: { 9371 struct scsi_verify_12 *cdb; 9372 9373 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9374 if (cdb->byte2 & SVFY_BYTCHK) 9375 bytchk = 1; 9376 if (cdb->byte2 & SVFY_DPO) 9377 flags |= CTL_LLF_DPO; 9378 lba = scsi_4btoul(cdb->addr); 9379 num_blocks = scsi_4btoul(cdb->length); 9380 break; 9381 } 9382 case VERIFY_16: { 9383 struct scsi_rw_16 *cdb; 9384 9385 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9386 if (cdb->byte2 & SVFY_BYTCHK) 9387 bytchk = 1; 9388 if (cdb->byte2 & SVFY_DPO) 9389 flags |= CTL_LLF_DPO; 9390 lba = scsi_8btou64(cdb->addr); 9391 num_blocks = scsi_4btoul(cdb->length); 9392 break; 9393 } 9394 default: 9395 /* 9396 * We got a command we don't support. This shouldn't 9397 * happen, commands should be filtered out above us. 9398 */ 9399 ctl_set_invalid_opcode(ctsio); 9400 ctl_done((union ctl_io *)ctsio); 9401 return (CTL_RETVAL_COMPLETE); 9402 } 9403 9404 /* 9405 * The first check is to make sure we're in bounds, the second 9406 * check is to catch wrap-around problems. If the lba + num blocks 9407 * is less than the lba, then we've wrapped around and the block 9408 * range is invalid anyway. 9409 */ 9410 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9411 || ((lba + num_blocks) < lba)) { 9412 ctl_set_lba_out_of_range(ctsio); 9413 ctl_done((union ctl_io *)ctsio); 9414 return (CTL_RETVAL_COMPLETE); 9415 } 9416 9417 /* 9418 * According to SBC-3, a transfer length of 0 is not an error. 9419 */ 9420 if (num_blocks == 0) { 9421 ctl_set_success(ctsio); 9422 ctl_done((union ctl_io *)ctsio); 9423 return (CTL_RETVAL_COMPLETE); 9424 } 9425 9426 lbalen = (struct ctl_lba_len_flags *) 9427 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9428 lbalen->lba = lba; 9429 lbalen->len = num_blocks; 9430 if (bytchk) { 9431 lbalen->flags = CTL_LLF_COMPARE | flags; 9432 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9433 } else { 9434 lbalen->flags = CTL_LLF_VERIFY | flags; 9435 ctsio->kern_total_len = 0; 9436 } 9437 ctsio->kern_rel_offset = 0; 9438 9439 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9440 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9441 return (retval); 9442} 9443 9444int 9445ctl_report_luns(struct ctl_scsiio *ctsio) 9446{ 9447 struct scsi_report_luns *cdb; 9448 struct scsi_report_luns_data *lun_data; 9449 struct ctl_lun *lun, *request_lun; 9450 int num_luns, retval; 9451 uint32_t alloc_len, lun_datalen; 9452 int num_filled, well_known; 9453 uint32_t initidx, targ_lun_id, lun_id; 9454 9455 retval = CTL_RETVAL_COMPLETE; 9456 well_known = 0; 9457 9458 cdb = (struct scsi_report_luns *)ctsio->cdb; 9459 9460 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9461 9462 mtx_lock(&control_softc->ctl_lock); 9463 num_luns = control_softc->num_luns; 9464 mtx_unlock(&control_softc->ctl_lock); 9465 9466 switch (cdb->select_report) { 9467 case RPL_REPORT_DEFAULT: 9468 case RPL_REPORT_ALL: 9469 break; 9470 case RPL_REPORT_WELLKNOWN: 9471 well_known = 1; 9472 num_luns = 0; 9473 break; 9474 default: 9475 ctl_set_invalid_field(ctsio, 9476 /*sks_valid*/ 1, 9477 /*command*/ 1, 9478 /*field*/ 2, 9479 /*bit_valid*/ 0, 9480 /*bit*/ 0); 9481 ctl_done((union ctl_io *)ctsio); 9482 return (retval); 9483 break; /* NOTREACHED */ 9484 } 9485 9486 alloc_len = scsi_4btoul(cdb->length); 9487 /* 9488 * The initiator has to allocate at least 16 bytes for this request, 9489 * so he can at least get the header and the first LUN. Otherwise 9490 * we reject the request (per SPC-3 rev 14, section 6.21). 9491 */ 9492 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9493 sizeof(struct scsi_report_luns_lundata))) { 9494 ctl_set_invalid_field(ctsio, 9495 /*sks_valid*/ 1, 9496 /*command*/ 1, 9497 /*field*/ 6, 9498 /*bit_valid*/ 0, 9499 /*bit*/ 0); 9500 ctl_done((union ctl_io *)ctsio); 9501 return (retval); 9502 } 9503 9504 request_lun = (struct ctl_lun *) 9505 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9506 9507 lun_datalen = sizeof(*lun_data) + 9508 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9509 9510 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9511 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9512 ctsio->kern_sg_entries = 0; 9513 9514 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9515 9516 mtx_lock(&control_softc->ctl_lock); 9517 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9518 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9519 if (lun_id >= CTL_MAX_LUNS) 9520 continue; 9521 lun = control_softc->ctl_luns[lun_id]; 9522 if (lun == NULL) 9523 continue; 9524 9525 if (targ_lun_id <= 0xff) { 9526 /* 9527 * Peripheral addressing method, bus number 0. 9528 */ 9529 lun_data->luns[num_filled].lundata[0] = 9530 RPL_LUNDATA_ATYP_PERIPH; 9531 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9532 num_filled++; 9533 } else if (targ_lun_id <= 0x3fff) { 9534 /* 9535 * Flat addressing method. 9536 */ 9537 lun_data->luns[num_filled].lundata[0] = 9538 RPL_LUNDATA_ATYP_FLAT | 9539 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9540#ifdef OLDCTLHEADERS 9541 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9542 (targ_lun_id & SRLD_BUS_LUN_MASK); 9543#endif 9544 lun_data->luns[num_filled].lundata[1] = 9545#ifdef OLDCTLHEADERS 9546 targ_lun_id >> SRLD_BUS_LUN_BITS; 9547#endif 9548 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9549 num_filled++; 9550 } else { 9551 printf("ctl_report_luns: bogus LUN number %jd, " 9552 "skipping\n", (intmax_t)targ_lun_id); 9553 } 9554 /* 9555 * According to SPC-3, rev 14 section 6.21: 9556 * 9557 * "The execution of a REPORT LUNS command to any valid and 9558 * installed logical unit shall clear the REPORTED LUNS DATA 9559 * HAS CHANGED unit attention condition for all logical 9560 * units of that target with respect to the requesting 9561 * initiator. A valid and installed logical unit is one 9562 * having a PERIPHERAL QUALIFIER of 000b in the standard 9563 * INQUIRY data (see 6.4.2)." 9564 * 9565 * If request_lun is NULL, the LUN this report luns command 9566 * was issued to is either disabled or doesn't exist. In that 9567 * case, we shouldn't clear any pending lun change unit 9568 * attention. 9569 */ 9570 if (request_lun != NULL) { 9571 mtx_lock(&lun->lun_lock); 9572 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9573 mtx_unlock(&lun->lun_lock); 9574 } 9575 } 9576 mtx_unlock(&control_softc->ctl_lock); 9577 9578 /* 9579 * It's quite possible that we've returned fewer LUNs than we allocated 9580 * space for. Trim it. 9581 */ 9582 lun_datalen = sizeof(*lun_data) + 9583 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9584 9585 if (lun_datalen < alloc_len) { 9586 ctsio->residual = alloc_len - lun_datalen; 9587 ctsio->kern_data_len = lun_datalen; 9588 ctsio->kern_total_len = lun_datalen; 9589 } else { 9590 ctsio->residual = 0; 9591 ctsio->kern_data_len = alloc_len; 9592 ctsio->kern_total_len = alloc_len; 9593 } 9594 ctsio->kern_data_resid = 0; 9595 ctsio->kern_rel_offset = 0; 9596 ctsio->kern_sg_entries = 0; 9597 9598 /* 9599 * We set this to the actual data length, regardless of how much 9600 * space we actually have to return results. If the user looks at 9601 * this value, he'll know whether or not he allocated enough space 9602 * and reissue the command if necessary. We don't support well 9603 * known logical units, so if the user asks for that, return none. 9604 */ 9605 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9606 9607 /* 9608 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9609 * this request. 9610 */ 9611 ctsio->scsi_status = SCSI_STATUS_OK; 9612 9613 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9614 ctsio->be_move_done = ctl_config_move_done; 9615 ctl_datamove((union ctl_io *)ctsio); 9616 9617 return (retval); 9618} 9619 9620int 9621ctl_request_sense(struct ctl_scsiio *ctsio) 9622{ 9623 struct scsi_request_sense *cdb; 9624 struct scsi_sense_data *sense_ptr; 9625 struct ctl_lun *lun; 9626 uint32_t initidx; 9627 int have_error; 9628 scsi_sense_data_type sense_format; 9629 9630 cdb = (struct scsi_request_sense *)ctsio->cdb; 9631 9632 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9633 9634 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9635 9636 /* 9637 * Determine which sense format the user wants. 9638 */ 9639 if (cdb->byte2 & SRS_DESC) 9640 sense_format = SSD_TYPE_DESC; 9641 else 9642 sense_format = SSD_TYPE_FIXED; 9643 9644 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9645 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9646 ctsio->kern_sg_entries = 0; 9647 9648 /* 9649 * struct scsi_sense_data, which is currently set to 256 bytes, is 9650 * larger than the largest allowed value for the length field in the 9651 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9652 */ 9653 ctsio->residual = 0; 9654 ctsio->kern_data_len = cdb->length; 9655 ctsio->kern_total_len = cdb->length; 9656 9657 ctsio->kern_data_resid = 0; 9658 ctsio->kern_rel_offset = 0; 9659 ctsio->kern_sg_entries = 0; 9660 9661 /* 9662 * If we don't have a LUN, we don't have any pending sense. 9663 */ 9664 if (lun == NULL) 9665 goto no_sense; 9666 9667 have_error = 0; 9668 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9669 /* 9670 * Check for pending sense, and then for pending unit attentions. 9671 * Pending sense gets returned first, then pending unit attentions. 9672 */ 9673 mtx_lock(&lun->lun_lock); 9674#ifdef CTL_WITH_CA 9675 if (ctl_is_set(lun->have_ca, initidx)) { 9676 scsi_sense_data_type stored_format; 9677 9678 /* 9679 * Check to see which sense format was used for the stored 9680 * sense data. 9681 */ 9682 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9683 9684 /* 9685 * If the user requested a different sense format than the 9686 * one we stored, then we need to convert it to the other 9687 * format. If we're going from descriptor to fixed format 9688 * sense data, we may lose things in translation, depending 9689 * on what options were used. 9690 * 9691 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9692 * for some reason we'll just copy it out as-is. 9693 */ 9694 if ((stored_format == SSD_TYPE_FIXED) 9695 && (sense_format == SSD_TYPE_DESC)) 9696 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9697 &lun->pending_sense[initidx], 9698 (struct scsi_sense_data_desc *)sense_ptr); 9699 else if ((stored_format == SSD_TYPE_DESC) 9700 && (sense_format == SSD_TYPE_FIXED)) 9701 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9702 &lun->pending_sense[initidx], 9703 (struct scsi_sense_data_fixed *)sense_ptr); 9704 else 9705 memcpy(sense_ptr, &lun->pending_sense[initidx], 9706 ctl_min(sizeof(*sense_ptr), 9707 sizeof(lun->pending_sense[initidx]))); 9708 9709 ctl_clear_mask(lun->have_ca, initidx); 9710 have_error = 1; 9711 } else 9712#endif 9713 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9714 ctl_ua_type ua_type; 9715 9716 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9717 sense_ptr, sense_format); 9718 if (ua_type != CTL_UA_NONE) 9719 have_error = 1; 9720 } 9721 mtx_unlock(&lun->lun_lock); 9722 9723 /* 9724 * We already have a pending error, return it. 9725 */ 9726 if (have_error != 0) { 9727 /* 9728 * We report the SCSI status as OK, since the status of the 9729 * request sense command itself is OK. 9730 */ 9731 ctsio->scsi_status = SCSI_STATUS_OK; 9732 9733 /* 9734 * We report 0 for the sense length, because we aren't doing 9735 * autosense in this case. We're reporting sense as 9736 * parameter data. 9737 */ 9738 ctsio->sense_len = 0; 9739 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9740 ctsio->be_move_done = ctl_config_move_done; 9741 ctl_datamove((union ctl_io *)ctsio); 9742 9743 return (CTL_RETVAL_COMPLETE); 9744 } 9745 9746no_sense: 9747 9748 /* 9749 * No sense information to report, so we report that everything is 9750 * okay. 9751 */ 9752 ctl_set_sense_data(sense_ptr, 9753 lun, 9754 sense_format, 9755 /*current_error*/ 1, 9756 /*sense_key*/ SSD_KEY_NO_SENSE, 9757 /*asc*/ 0x00, 9758 /*ascq*/ 0x00, 9759 SSD_ELEM_NONE); 9760 9761 ctsio->scsi_status = SCSI_STATUS_OK; 9762 9763 /* 9764 * We report 0 for the sense length, because we aren't doing 9765 * autosense in this case. We're reporting sense as parameter data. 9766 */ 9767 ctsio->sense_len = 0; 9768 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9769 ctsio->be_move_done = ctl_config_move_done; 9770 ctl_datamove((union ctl_io *)ctsio); 9771 9772 return (CTL_RETVAL_COMPLETE); 9773} 9774 9775int 9776ctl_tur(struct ctl_scsiio *ctsio) 9777{ 9778 struct ctl_lun *lun; 9779 9780 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9781 9782 CTL_DEBUG_PRINT(("ctl_tur\n")); 9783 9784 if (lun == NULL) 9785 return (EINVAL); 9786 9787 ctsio->scsi_status = SCSI_STATUS_OK; 9788 ctsio->io_hdr.status = CTL_SUCCESS; 9789 9790 ctl_done((union ctl_io *)ctsio); 9791 9792 return (CTL_RETVAL_COMPLETE); 9793} 9794 9795#ifdef notyet 9796static int 9797ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9798{ 9799 9800} 9801#endif 9802 9803static int 9804ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9805{ 9806 struct scsi_vpd_supported_pages *pages; 9807 int sup_page_size; 9808 struct ctl_lun *lun; 9809 9810 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9811 9812 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9813 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9814 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9815 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9816 ctsio->kern_sg_entries = 0; 9817 9818 if (sup_page_size < alloc_len) { 9819 ctsio->residual = alloc_len - sup_page_size; 9820 ctsio->kern_data_len = sup_page_size; 9821 ctsio->kern_total_len = sup_page_size; 9822 } else { 9823 ctsio->residual = 0; 9824 ctsio->kern_data_len = alloc_len; 9825 ctsio->kern_total_len = alloc_len; 9826 } 9827 ctsio->kern_data_resid = 0; 9828 ctsio->kern_rel_offset = 0; 9829 ctsio->kern_sg_entries = 0; 9830 9831 /* 9832 * The control device is always connected. The disk device, on the 9833 * other hand, may not be online all the time. Need to change this 9834 * to figure out whether the disk device is actually online or not. 9835 */ 9836 if (lun != NULL) 9837 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9838 lun->be_lun->lun_type; 9839 else 9840 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9841 9842 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9843 /* Supported VPD pages */ 9844 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9845 /* Serial Number */ 9846 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9847 /* Device Identification */ 9848 pages->page_list[2] = SVPD_DEVICE_ID; 9849 /* Mode Page Policy */ 9850 pages->page_list[3] = SVPD_MODE_PAGE_POLICY; 9851 /* SCSI Ports */ 9852 pages->page_list[4] = SVPD_SCSI_PORTS; 9853 /* Third-party Copy */ 9854 pages->page_list[5] = SVPD_SCSI_TPC; 9855 /* Block limits */ 9856 pages->page_list[6] = SVPD_BLOCK_LIMITS; 9857 /* Block Device Characteristics */ 9858 pages->page_list[7] = SVPD_BDC; 9859 /* Logical Block Provisioning */ 9860 pages->page_list[8] = SVPD_LBP; 9861 9862 ctsio->scsi_status = SCSI_STATUS_OK; 9863 9864 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9865 ctsio->be_move_done = ctl_config_move_done; 9866 ctl_datamove((union ctl_io *)ctsio); 9867 9868 return (CTL_RETVAL_COMPLETE); 9869} 9870 9871static int 9872ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9873{ 9874 struct scsi_vpd_unit_serial_number *sn_ptr; 9875 struct ctl_lun *lun; 9876 9877 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9878 9879 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9880 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9881 ctsio->kern_sg_entries = 0; 9882 9883 if (sizeof(*sn_ptr) < alloc_len) { 9884 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9885 ctsio->kern_data_len = sizeof(*sn_ptr); 9886 ctsio->kern_total_len = sizeof(*sn_ptr); 9887 } else { 9888 ctsio->residual = 0; 9889 ctsio->kern_data_len = alloc_len; 9890 ctsio->kern_total_len = alloc_len; 9891 } 9892 ctsio->kern_data_resid = 0; 9893 ctsio->kern_rel_offset = 0; 9894 ctsio->kern_sg_entries = 0; 9895 9896 /* 9897 * The control device is always connected. The disk device, on the 9898 * other hand, may not be online all the time. Need to change this 9899 * to figure out whether the disk device is actually online or not. 9900 */ 9901 if (lun != NULL) 9902 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9903 lun->be_lun->lun_type; 9904 else 9905 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9906 9907 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9908 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9909 /* 9910 * If we don't have a LUN, we just leave the serial number as 9911 * all spaces. 9912 */ 9913 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9914 if (lun != NULL) { 9915 strncpy((char *)sn_ptr->serial_num, 9916 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9917 } 9918 ctsio->scsi_status = SCSI_STATUS_OK; 9919 9920 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9921 ctsio->be_move_done = ctl_config_move_done; 9922 ctl_datamove((union ctl_io *)ctsio); 9923 9924 return (CTL_RETVAL_COMPLETE); 9925} 9926 9927 9928static int 9929ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9930{ 9931 struct scsi_vpd_mode_page_policy *mpp_ptr; 9932 struct ctl_lun *lun; 9933 int data_len; 9934 9935 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9936 9937 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9938 sizeof(struct scsi_vpd_mode_page_policy_descr); 9939 9940 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9941 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9942 ctsio->kern_sg_entries = 0; 9943 9944 if (data_len < alloc_len) { 9945 ctsio->residual = alloc_len - data_len; 9946 ctsio->kern_data_len = data_len; 9947 ctsio->kern_total_len = data_len; 9948 } else { 9949 ctsio->residual = 0; 9950 ctsio->kern_data_len = alloc_len; 9951 ctsio->kern_total_len = alloc_len; 9952 } 9953 ctsio->kern_data_resid = 0; 9954 ctsio->kern_rel_offset = 0; 9955 ctsio->kern_sg_entries = 0; 9956 9957 /* 9958 * The control device is always connected. The disk device, on the 9959 * other hand, may not be online all the time. 9960 */ 9961 if (lun != NULL) 9962 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9963 lun->be_lun->lun_type; 9964 else 9965 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9966 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9967 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9968 mpp_ptr->descr[0].page_code = 0x3f; 9969 mpp_ptr->descr[0].subpage_code = 0xff; 9970 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9971 9972 ctsio->scsi_status = SCSI_STATUS_OK; 9973 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9974 ctsio->be_move_done = ctl_config_move_done; 9975 ctl_datamove((union ctl_io *)ctsio); 9976 9977 return (CTL_RETVAL_COMPLETE); 9978} 9979 9980static int 9981ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9982{ 9983 struct scsi_vpd_device_id *devid_ptr; 9984 struct scsi_vpd_id_descriptor *desc; 9985 struct ctl_softc *ctl_softc; 9986 struct ctl_lun *lun; 9987 struct ctl_port *port; 9988 int data_len; 9989 uint8_t proto; 9990 9991 ctl_softc = control_softc; 9992 9993 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9994 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9995 9996 data_len = sizeof(struct scsi_vpd_device_id) + 9997 sizeof(struct scsi_vpd_id_descriptor) + 9998 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9999 sizeof(struct scsi_vpd_id_descriptor) + 10000 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10001 if (lun && lun->lun_devid) 10002 data_len += lun->lun_devid->len; 10003 if (port->port_devid) 10004 data_len += port->port_devid->len; 10005 if (port->target_devid) 10006 data_len += port->target_devid->len; 10007 10008 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10009 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10010 ctsio->kern_sg_entries = 0; 10011 10012 if (data_len < alloc_len) { 10013 ctsio->residual = alloc_len - data_len; 10014 ctsio->kern_data_len = data_len; 10015 ctsio->kern_total_len = data_len; 10016 } else { 10017 ctsio->residual = 0; 10018 ctsio->kern_data_len = alloc_len; 10019 ctsio->kern_total_len = alloc_len; 10020 } 10021 ctsio->kern_data_resid = 0; 10022 ctsio->kern_rel_offset = 0; 10023 ctsio->kern_sg_entries = 0; 10024 10025 /* 10026 * The control device is always connected. The disk device, on the 10027 * other hand, may not be online all the time. 10028 */ 10029 if (lun != NULL) 10030 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10031 lun->be_lun->lun_type; 10032 else 10033 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10034 devid_ptr->page_code = SVPD_DEVICE_ID; 10035 scsi_ulto2b(data_len - 4, devid_ptr->length); 10036 10037 if (port->port_type == CTL_PORT_FC) 10038 proto = SCSI_PROTO_FC << 4; 10039 else if (port->port_type == CTL_PORT_ISCSI) 10040 proto = SCSI_PROTO_ISCSI << 4; 10041 else 10042 proto = SCSI_PROTO_SPI << 4; 10043 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10044 10045 /* 10046 * We're using a LUN association here. i.e., this device ID is a 10047 * per-LUN identifier. 10048 */ 10049 if (lun && lun->lun_devid) { 10050 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10051 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10052 lun->lun_devid->len); 10053 } 10054 10055 /* 10056 * This is for the WWPN which is a port association. 10057 */ 10058 if (port->port_devid) { 10059 memcpy(desc, port->port_devid->data, port->port_devid->len); 10060 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10061 port->port_devid->len); 10062 } 10063 10064 /* 10065 * This is for the Relative Target Port(type 4h) identifier 10066 */ 10067 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10068 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10069 SVPD_ID_TYPE_RELTARG; 10070 desc->length = 4; 10071 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10072 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10073 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10074 10075 /* 10076 * This is for the Target Port Group(type 5h) identifier 10077 */ 10078 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10079 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10080 SVPD_ID_TYPE_TPORTGRP; 10081 desc->length = 4; 10082 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10083 &desc->identifier[2]); 10084 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10085 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10086 10087 /* 10088 * This is for the Target identifier 10089 */ 10090 if (port->target_devid) { 10091 memcpy(desc, port->target_devid->data, port->target_devid->len); 10092 } 10093 10094 ctsio->scsi_status = SCSI_STATUS_OK; 10095 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10096 ctsio->be_move_done = ctl_config_move_done; 10097 ctl_datamove((union ctl_io *)ctsio); 10098 10099 return (CTL_RETVAL_COMPLETE); 10100} 10101 10102static int 10103ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10104{ 10105 struct ctl_softc *softc = control_softc; 10106 struct scsi_vpd_scsi_ports *sp; 10107 struct scsi_vpd_port_designation *pd; 10108 struct scsi_vpd_port_designation_cont *pdc; 10109 struct ctl_lun *lun; 10110 struct ctl_port *port; 10111 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10112 int num_target_port_groups, single; 10113 10114 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10115 10116 single = ctl_is_single; 10117 if (single) 10118 num_target_port_groups = 1; 10119 else 10120 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10121 num_target_ports = 0; 10122 iid_len = 0; 10123 id_len = 0; 10124 mtx_lock(&softc->ctl_lock); 10125 STAILQ_FOREACH(port, &softc->port_list, links) { 10126 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10127 continue; 10128 if (lun != NULL && 10129 ctl_map_lun_back(port->targ_port, lun->lun) >= 10130 CTL_MAX_LUNS) 10131 continue; 10132 num_target_ports++; 10133 if (port->init_devid) 10134 iid_len += port->init_devid->len; 10135 if (port->port_devid) 10136 id_len += port->port_devid->len; 10137 } 10138 mtx_unlock(&softc->ctl_lock); 10139 10140 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10141 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10142 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10143 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10144 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10145 ctsio->kern_sg_entries = 0; 10146 10147 if (data_len < alloc_len) { 10148 ctsio->residual = alloc_len - data_len; 10149 ctsio->kern_data_len = data_len; 10150 ctsio->kern_total_len = data_len; 10151 } else { 10152 ctsio->residual = 0; 10153 ctsio->kern_data_len = alloc_len; 10154 ctsio->kern_total_len = alloc_len; 10155 } 10156 ctsio->kern_data_resid = 0; 10157 ctsio->kern_rel_offset = 0; 10158 ctsio->kern_sg_entries = 0; 10159 10160 /* 10161 * The control device is always connected. The disk device, on the 10162 * other hand, may not be online all the time. Need to change this 10163 * to figure out whether the disk device is actually online or not. 10164 */ 10165 if (lun != NULL) 10166 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10167 lun->be_lun->lun_type; 10168 else 10169 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10170 10171 sp->page_code = SVPD_SCSI_PORTS; 10172 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10173 sp->page_length); 10174 pd = &sp->design[0]; 10175 10176 mtx_lock(&softc->ctl_lock); 10177 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10178 pg = 0; 10179 else 10180 pg = 1; 10181 for (g = 0; g < num_target_port_groups; g++) { 10182 STAILQ_FOREACH(port, &softc->port_list, links) { 10183 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10184 continue; 10185 if (lun != NULL && 10186 ctl_map_lun_back(port->targ_port, lun->lun) >= 10187 CTL_MAX_LUNS) 10188 continue; 10189 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10190 scsi_ulto2b(p, pd->relative_port_id); 10191 if (port->init_devid && g == pg) { 10192 iid_len = port->init_devid->len; 10193 memcpy(pd->initiator_transportid, 10194 port->init_devid->data, port->init_devid->len); 10195 } else 10196 iid_len = 0; 10197 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10198 pdc = (struct scsi_vpd_port_designation_cont *) 10199 (&pd->initiator_transportid[iid_len]); 10200 if (port->port_devid && g == pg) { 10201 id_len = port->port_devid->len; 10202 memcpy(pdc->target_port_descriptors, 10203 port->port_devid->data, port->port_devid->len); 10204 } else 10205 id_len = 0; 10206 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10207 pd = (struct scsi_vpd_port_designation *) 10208 ((uint8_t *)pdc->target_port_descriptors + id_len); 10209 } 10210 } 10211 mtx_unlock(&softc->ctl_lock); 10212 10213 ctsio->scsi_status = SCSI_STATUS_OK; 10214 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10215 ctsio->be_move_done = ctl_config_move_done; 10216 ctl_datamove((union ctl_io *)ctsio); 10217 10218 return (CTL_RETVAL_COMPLETE); 10219} 10220 10221static int 10222ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10223{ 10224 struct scsi_vpd_block_limits *bl_ptr; 10225 struct ctl_lun *lun; 10226 int bs; 10227 10228 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10229 10230 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10231 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10232 ctsio->kern_sg_entries = 0; 10233 10234 if (sizeof(*bl_ptr) < alloc_len) { 10235 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10236 ctsio->kern_data_len = sizeof(*bl_ptr); 10237 ctsio->kern_total_len = sizeof(*bl_ptr); 10238 } else { 10239 ctsio->residual = 0; 10240 ctsio->kern_data_len = alloc_len; 10241 ctsio->kern_total_len = alloc_len; 10242 } 10243 ctsio->kern_data_resid = 0; 10244 ctsio->kern_rel_offset = 0; 10245 ctsio->kern_sg_entries = 0; 10246 10247 /* 10248 * The control device is always connected. The disk device, on the 10249 * other hand, may not be online all the time. Need to change this 10250 * to figure out whether the disk device is actually online or not. 10251 */ 10252 if (lun != NULL) 10253 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10254 lun->be_lun->lun_type; 10255 else 10256 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10257 10258 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10259 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10260 bl_ptr->max_cmp_write_len = 0xff; 10261 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10262 if (lun != NULL) { 10263 bs = lun->be_lun->blocksize; 10264 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10265 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10266 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10267 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10268 if (lun->be_lun->pblockexp != 0) { 10269 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10270 bl_ptr->opt_unmap_grain); 10271 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10272 bl_ptr->unmap_grain_align); 10273 } 10274 } 10275 } 10276 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10277 10278 ctsio->scsi_status = SCSI_STATUS_OK; 10279 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10280 ctsio->be_move_done = ctl_config_move_done; 10281 ctl_datamove((union ctl_io *)ctsio); 10282 10283 return (CTL_RETVAL_COMPLETE); 10284} 10285 10286static int 10287ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10288{ 10289 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10290 struct ctl_lun *lun; 10291 10292 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10293 10294 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10295 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10296 ctsio->kern_sg_entries = 0; 10297 10298 if (sizeof(*bdc_ptr) < alloc_len) { 10299 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10300 ctsio->kern_data_len = sizeof(*bdc_ptr); 10301 ctsio->kern_total_len = sizeof(*bdc_ptr); 10302 } else { 10303 ctsio->residual = 0; 10304 ctsio->kern_data_len = alloc_len; 10305 ctsio->kern_total_len = alloc_len; 10306 } 10307 ctsio->kern_data_resid = 0; 10308 ctsio->kern_rel_offset = 0; 10309 ctsio->kern_sg_entries = 0; 10310 10311 /* 10312 * The control device is always connected. The disk device, on the 10313 * other hand, may not be online all the time. Need to change this 10314 * to figure out whether the disk device is actually online or not. 10315 */ 10316 if (lun != NULL) 10317 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10318 lun->be_lun->lun_type; 10319 else 10320 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10321 bdc_ptr->page_code = SVPD_BDC; 10322 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10323 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10324 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10325 10326 ctsio->scsi_status = SCSI_STATUS_OK; 10327 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10328 ctsio->be_move_done = ctl_config_move_done; 10329 ctl_datamove((union ctl_io *)ctsio); 10330 10331 return (CTL_RETVAL_COMPLETE); 10332} 10333 10334static int 10335ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10336{ 10337 struct scsi_vpd_logical_block_prov *lbp_ptr; 10338 struct ctl_lun *lun; 10339 10340 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10341 10342 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10343 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10344 ctsio->kern_sg_entries = 0; 10345 10346 if (sizeof(*lbp_ptr) < alloc_len) { 10347 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10348 ctsio->kern_data_len = sizeof(*lbp_ptr); 10349 ctsio->kern_total_len = sizeof(*lbp_ptr); 10350 } else { 10351 ctsio->residual = 0; 10352 ctsio->kern_data_len = alloc_len; 10353 ctsio->kern_total_len = alloc_len; 10354 } 10355 ctsio->kern_data_resid = 0; 10356 ctsio->kern_rel_offset = 0; 10357 ctsio->kern_sg_entries = 0; 10358 10359 /* 10360 * The control device is always connected. The disk device, on the 10361 * other hand, may not be online all the time. Need to change this 10362 * to figure out whether the disk device is actually online or not. 10363 */ 10364 if (lun != NULL) 10365 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10366 lun->be_lun->lun_type; 10367 else 10368 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10369 10370 lbp_ptr->page_code = SVPD_LBP; 10371 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10372 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10373 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10374 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10375 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10376 } 10377 10378 ctsio->scsi_status = SCSI_STATUS_OK; 10379 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10380 ctsio->be_move_done = ctl_config_move_done; 10381 ctl_datamove((union ctl_io *)ctsio); 10382 10383 return (CTL_RETVAL_COMPLETE); 10384} 10385 10386static int 10387ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10388{ 10389 struct scsi_inquiry *cdb; 10390 struct ctl_lun *lun; 10391 int alloc_len, retval; 10392 10393 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10394 cdb = (struct scsi_inquiry *)ctsio->cdb; 10395 10396 retval = CTL_RETVAL_COMPLETE; 10397 10398 alloc_len = scsi_2btoul(cdb->length); 10399 10400 switch (cdb->page_code) { 10401 case SVPD_SUPPORTED_PAGES: 10402 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10403 break; 10404 case SVPD_UNIT_SERIAL_NUMBER: 10405 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10406 break; 10407 case SVPD_DEVICE_ID: 10408 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10409 break; 10410 case SVPD_MODE_PAGE_POLICY: 10411 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10412 break; 10413 case SVPD_SCSI_PORTS: 10414 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10415 break; 10416 case SVPD_SCSI_TPC: 10417 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10418 break; 10419 case SVPD_BLOCK_LIMITS: 10420 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10421 break; 10422 case SVPD_BDC: 10423 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10424 break; 10425 case SVPD_LBP: 10426 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10427 break; 10428 default: 10429 ctl_set_invalid_field(ctsio, 10430 /*sks_valid*/ 1, 10431 /*command*/ 1, 10432 /*field*/ 2, 10433 /*bit_valid*/ 0, 10434 /*bit*/ 0); 10435 ctl_done((union ctl_io *)ctsio); 10436 retval = CTL_RETVAL_COMPLETE; 10437 break; 10438 } 10439 10440 return (retval); 10441} 10442 10443static int 10444ctl_inquiry_std(struct ctl_scsiio *ctsio) 10445{ 10446 struct scsi_inquiry_data *inq_ptr; 10447 struct scsi_inquiry *cdb; 10448 struct ctl_softc *ctl_softc; 10449 struct ctl_lun *lun; 10450 char *val; 10451 uint32_t alloc_len; 10452 ctl_port_type port_type; 10453 10454 ctl_softc = control_softc; 10455 10456 /* 10457 * Figure out whether we're talking to a Fibre Channel port or not. 10458 * We treat the ioctl front end, and any SCSI adapters, as packetized 10459 * SCSI front ends. 10460 */ 10461 port_type = ctl_softc->ctl_ports[ 10462 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10463 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10464 port_type = CTL_PORT_SCSI; 10465 10466 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10467 cdb = (struct scsi_inquiry *)ctsio->cdb; 10468 alloc_len = scsi_2btoul(cdb->length); 10469 10470 /* 10471 * We malloc the full inquiry data size here and fill it 10472 * in. If the user only asks for less, we'll give him 10473 * that much. 10474 */ 10475 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10476 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10477 ctsio->kern_sg_entries = 0; 10478 ctsio->kern_data_resid = 0; 10479 ctsio->kern_rel_offset = 0; 10480 10481 if (sizeof(*inq_ptr) < alloc_len) { 10482 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10483 ctsio->kern_data_len = sizeof(*inq_ptr); 10484 ctsio->kern_total_len = sizeof(*inq_ptr); 10485 } else { 10486 ctsio->residual = 0; 10487 ctsio->kern_data_len = alloc_len; 10488 ctsio->kern_total_len = alloc_len; 10489 } 10490 10491 /* 10492 * If we have a LUN configured, report it as connected. Otherwise, 10493 * report that it is offline or no device is supported, depending 10494 * on the value of inquiry_pq_no_lun. 10495 * 10496 * According to the spec (SPC-4 r34), the peripheral qualifier 10497 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10498 * 10499 * "A peripheral device having the specified peripheral device type 10500 * is not connected to this logical unit. However, the device 10501 * server is capable of supporting the specified peripheral device 10502 * type on this logical unit." 10503 * 10504 * According to the same spec, the peripheral qualifier 10505 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10506 * 10507 * "The device server is not capable of supporting a peripheral 10508 * device on this logical unit. For this peripheral qualifier the 10509 * peripheral device type shall be set to 1Fh. All other peripheral 10510 * device type values are reserved for this peripheral qualifier." 10511 * 10512 * Given the text, it would seem that we probably want to report that 10513 * the LUN is offline here. There is no LUN connected, but we can 10514 * support a LUN at the given LUN number. 10515 * 10516 * In the real world, though, it sounds like things are a little 10517 * different: 10518 * 10519 * - Linux, when presented with a LUN with the offline peripheral 10520 * qualifier, will create an sg driver instance for it. So when 10521 * you attach it to CTL, you wind up with a ton of sg driver 10522 * instances. (One for every LUN that Linux bothered to probe.) 10523 * Linux does this despite the fact that it issues a REPORT LUNs 10524 * to LUN 0 to get the inventory of supported LUNs. 10525 * 10526 * - There is other anecdotal evidence (from Emulex folks) about 10527 * arrays that use the offline peripheral qualifier for LUNs that 10528 * are on the "passive" path in an active/passive array. 10529 * 10530 * So the solution is provide a hopefully reasonable default 10531 * (return bad/no LUN) and allow the user to change the behavior 10532 * with a tunable/sysctl variable. 10533 */ 10534 if (lun != NULL) 10535 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10536 lun->be_lun->lun_type; 10537 else if (ctl_softc->inquiry_pq_no_lun == 0) 10538 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10539 else 10540 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10541 10542 /* RMB in byte 2 is 0 */ 10543 inq_ptr->version = SCSI_REV_SPC4; 10544 10545 /* 10546 * According to SAM-3, even if a device only supports a single 10547 * level of LUN addressing, it should still set the HISUP bit: 10548 * 10549 * 4.9.1 Logical unit numbers overview 10550 * 10551 * All logical unit number formats described in this standard are 10552 * hierarchical in structure even when only a single level in that 10553 * hierarchy is used. The HISUP bit shall be set to one in the 10554 * standard INQUIRY data (see SPC-2) when any logical unit number 10555 * format described in this standard is used. Non-hierarchical 10556 * formats are outside the scope of this standard. 10557 * 10558 * Therefore we set the HiSup bit here. 10559 * 10560 * The reponse format is 2, per SPC-3. 10561 */ 10562 inq_ptr->response_format = SID_HiSup | 2; 10563 10564 inq_ptr->additional_length = 10565 offsetof(struct scsi_inquiry_data, vendor_specific1) - 10566 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10567 CTL_DEBUG_PRINT(("additional_length = %d\n", 10568 inq_ptr->additional_length)); 10569 10570 inq_ptr->spc3_flags = SPC3_SID_3PC; 10571 if (!ctl_is_single) 10572 inq_ptr->spc3_flags |= SPC3_SID_TPGS_IMPLICIT; 10573 /* 16 bit addressing */ 10574 if (port_type == CTL_PORT_SCSI) 10575 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10576 /* XXX set the SID_MultiP bit here if we're actually going to 10577 respond on multiple ports */ 10578 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10579 10580 /* 16 bit data bus, synchronous transfers */ 10581 if (port_type == CTL_PORT_SCSI) 10582 inq_ptr->flags = SID_WBus16 | SID_Sync; 10583 /* 10584 * XXX KDM do we want to support tagged queueing on the control 10585 * device at all? 10586 */ 10587 if ((lun == NULL) 10588 || (lun->be_lun->lun_type != T_PROCESSOR)) 10589 inq_ptr->flags |= SID_CmdQue; 10590 /* 10591 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10592 * We have 8 bytes for the vendor name, and 16 bytes for the device 10593 * name and 4 bytes for the revision. 10594 */ 10595 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10596 "vendor")) == NULL) { 10597 strcpy(inq_ptr->vendor, CTL_VENDOR); 10598 } else { 10599 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10600 strncpy(inq_ptr->vendor, val, 10601 min(sizeof(inq_ptr->vendor), strlen(val))); 10602 } 10603 if (lun == NULL) { 10604 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10605 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10606 switch (lun->be_lun->lun_type) { 10607 case T_DIRECT: 10608 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10609 break; 10610 case T_PROCESSOR: 10611 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10612 break; 10613 default: 10614 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10615 break; 10616 } 10617 } else { 10618 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10619 strncpy(inq_ptr->product, val, 10620 min(sizeof(inq_ptr->product), strlen(val))); 10621 } 10622 10623 /* 10624 * XXX make this a macro somewhere so it automatically gets 10625 * incremented when we make changes. 10626 */ 10627 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10628 "revision")) == NULL) { 10629 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10630 } else { 10631 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10632 strncpy(inq_ptr->revision, val, 10633 min(sizeof(inq_ptr->revision), strlen(val))); 10634 } 10635 10636 /* 10637 * For parallel SCSI, we support double transition and single 10638 * transition clocking. We also support QAS (Quick Arbitration 10639 * and Selection) and Information Unit transfers on both the 10640 * control and array devices. 10641 */ 10642 if (port_type == CTL_PORT_SCSI) 10643 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10644 SID_SPI_IUS; 10645 10646 /* SAM-5 (no version claimed) */ 10647 scsi_ulto2b(0x00A0, inq_ptr->version1); 10648 /* SPC-4 (no version claimed) */ 10649 scsi_ulto2b(0x0460, inq_ptr->version2); 10650 if (port_type == CTL_PORT_FC) { 10651 /* FCP-2 ANSI INCITS.350:2003 */ 10652 scsi_ulto2b(0x0917, inq_ptr->version3); 10653 } else if (port_type == CTL_PORT_SCSI) { 10654 /* SPI-4 ANSI INCITS.362:200x */ 10655 scsi_ulto2b(0x0B56, inq_ptr->version3); 10656 } else if (port_type == CTL_PORT_ISCSI) { 10657 /* iSCSI (no version claimed) */ 10658 scsi_ulto2b(0x0960, inq_ptr->version3); 10659 } else if (port_type == CTL_PORT_SAS) { 10660 /* SAS (no version claimed) */ 10661 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10662 } 10663 10664 if (lun == NULL) { 10665 /* SBC-3 (no version claimed) */ 10666 scsi_ulto2b(0x04C0, inq_ptr->version4); 10667 } else { 10668 switch (lun->be_lun->lun_type) { 10669 case T_DIRECT: 10670 /* SBC-3 (no version claimed) */ 10671 scsi_ulto2b(0x04C0, inq_ptr->version4); 10672 break; 10673 case T_PROCESSOR: 10674 default: 10675 break; 10676 } 10677 } 10678 10679 ctsio->scsi_status = SCSI_STATUS_OK; 10680 if (ctsio->kern_data_len > 0) { 10681 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10682 ctsio->be_move_done = ctl_config_move_done; 10683 ctl_datamove((union ctl_io *)ctsio); 10684 } else { 10685 ctsio->io_hdr.status = CTL_SUCCESS; 10686 ctl_done((union ctl_io *)ctsio); 10687 } 10688 10689 return (CTL_RETVAL_COMPLETE); 10690} 10691 10692int 10693ctl_inquiry(struct ctl_scsiio *ctsio) 10694{ 10695 struct scsi_inquiry *cdb; 10696 int retval; 10697 10698 cdb = (struct scsi_inquiry *)ctsio->cdb; 10699 10700 retval = 0; 10701 10702 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10703 10704 /* 10705 * Right now, we don't support the CmdDt inquiry information. 10706 * This would be nice to support in the future. When we do 10707 * support it, we should change this test so that it checks to make 10708 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10709 */ 10710#ifdef notyet 10711 if (((cdb->byte2 & SI_EVPD) 10712 && (cdb->byte2 & SI_CMDDT))) 10713#endif 10714 if (cdb->byte2 & SI_CMDDT) { 10715 /* 10716 * Point to the SI_CMDDT bit. We might change this 10717 * when we support SI_CMDDT, but since both bits would be 10718 * "wrong", this should probably just stay as-is then. 10719 */ 10720 ctl_set_invalid_field(ctsio, 10721 /*sks_valid*/ 1, 10722 /*command*/ 1, 10723 /*field*/ 1, 10724 /*bit_valid*/ 1, 10725 /*bit*/ 1); 10726 ctl_done((union ctl_io *)ctsio); 10727 return (CTL_RETVAL_COMPLETE); 10728 } 10729 if (cdb->byte2 & SI_EVPD) 10730 retval = ctl_inquiry_evpd(ctsio); 10731#ifdef notyet 10732 else if (cdb->byte2 & SI_CMDDT) 10733 retval = ctl_inquiry_cmddt(ctsio); 10734#endif 10735 else 10736 retval = ctl_inquiry_std(ctsio); 10737 10738 return (retval); 10739} 10740 10741/* 10742 * For known CDB types, parse the LBA and length. 10743 */ 10744static int 10745ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10746{ 10747 if (io->io_hdr.io_type != CTL_IO_SCSI) 10748 return (1); 10749 10750 switch (io->scsiio.cdb[0]) { 10751 case COMPARE_AND_WRITE: { 10752 struct scsi_compare_and_write *cdb; 10753 10754 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10755 10756 *lba = scsi_8btou64(cdb->addr); 10757 *len = cdb->length; 10758 break; 10759 } 10760 case READ_6: 10761 case WRITE_6: { 10762 struct scsi_rw_6 *cdb; 10763 10764 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10765 10766 *lba = scsi_3btoul(cdb->addr); 10767 /* only 5 bits are valid in the most significant address byte */ 10768 *lba &= 0x1fffff; 10769 *len = cdb->length; 10770 break; 10771 } 10772 case READ_10: 10773 case WRITE_10: { 10774 struct scsi_rw_10 *cdb; 10775 10776 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10777 10778 *lba = scsi_4btoul(cdb->addr); 10779 *len = scsi_2btoul(cdb->length); 10780 break; 10781 } 10782 case WRITE_VERIFY_10: { 10783 struct scsi_write_verify_10 *cdb; 10784 10785 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10786 10787 *lba = scsi_4btoul(cdb->addr); 10788 *len = scsi_2btoul(cdb->length); 10789 break; 10790 } 10791 case READ_12: 10792 case WRITE_12: { 10793 struct scsi_rw_12 *cdb; 10794 10795 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10796 10797 *lba = scsi_4btoul(cdb->addr); 10798 *len = scsi_4btoul(cdb->length); 10799 break; 10800 } 10801 case WRITE_VERIFY_12: { 10802 struct scsi_write_verify_12 *cdb; 10803 10804 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10805 10806 *lba = scsi_4btoul(cdb->addr); 10807 *len = scsi_4btoul(cdb->length); 10808 break; 10809 } 10810 case READ_16: 10811 case WRITE_16: { 10812 struct scsi_rw_16 *cdb; 10813 10814 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10815 10816 *lba = scsi_8btou64(cdb->addr); 10817 *len = scsi_4btoul(cdb->length); 10818 break; 10819 } 10820 case WRITE_VERIFY_16: { 10821 struct scsi_write_verify_16 *cdb; 10822 10823 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10824 10825 10826 *lba = scsi_8btou64(cdb->addr); 10827 *len = scsi_4btoul(cdb->length); 10828 break; 10829 } 10830 case WRITE_SAME_10: { 10831 struct scsi_write_same_10 *cdb; 10832 10833 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10834 10835 *lba = scsi_4btoul(cdb->addr); 10836 *len = scsi_2btoul(cdb->length); 10837 break; 10838 } 10839 case WRITE_SAME_16: { 10840 struct scsi_write_same_16 *cdb; 10841 10842 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10843 10844 *lba = scsi_8btou64(cdb->addr); 10845 *len = scsi_4btoul(cdb->length); 10846 break; 10847 } 10848 case VERIFY_10: { 10849 struct scsi_verify_10 *cdb; 10850 10851 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10852 10853 *lba = scsi_4btoul(cdb->addr); 10854 *len = scsi_2btoul(cdb->length); 10855 break; 10856 } 10857 case VERIFY_12: { 10858 struct scsi_verify_12 *cdb; 10859 10860 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10861 10862 *lba = scsi_4btoul(cdb->addr); 10863 *len = scsi_4btoul(cdb->length); 10864 break; 10865 } 10866 case VERIFY_16: { 10867 struct scsi_verify_16 *cdb; 10868 10869 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10870 10871 *lba = scsi_8btou64(cdb->addr); 10872 *len = scsi_4btoul(cdb->length); 10873 break; 10874 } 10875 default: 10876 return (1); 10877 break; /* NOTREACHED */ 10878 } 10879 10880 return (0); 10881} 10882 10883static ctl_action 10884ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10885{ 10886 uint64_t endlba1, endlba2; 10887 10888 endlba1 = lba1 + len1 - 1; 10889 endlba2 = lba2 + len2 - 1; 10890 10891 if ((endlba1 < lba2) 10892 || (endlba2 < lba1)) 10893 return (CTL_ACTION_PASS); 10894 else 10895 return (CTL_ACTION_BLOCK); 10896} 10897 10898static ctl_action 10899ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10900{ 10901 uint64_t lba1, lba2; 10902 uint32_t len1, len2; 10903 int retval; 10904 10905 retval = ctl_get_lba_len(io1, &lba1, &len1); 10906 if (retval != 0) 10907 return (CTL_ACTION_ERROR); 10908 10909 retval = ctl_get_lba_len(io2, &lba2, &len2); 10910 if (retval != 0) 10911 return (CTL_ACTION_ERROR); 10912 10913 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10914} 10915 10916static ctl_action 10917ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10918{ 10919 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10920 ctl_serialize_action *serialize_row; 10921 10922 /* 10923 * The initiator attempted multiple untagged commands at the same 10924 * time. Can't do that. 10925 */ 10926 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10927 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10928 && ((pending_io->io_hdr.nexus.targ_port == 10929 ooa_io->io_hdr.nexus.targ_port) 10930 && (pending_io->io_hdr.nexus.initid.id == 10931 ooa_io->io_hdr.nexus.initid.id)) 10932 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10933 return (CTL_ACTION_OVERLAP); 10934 10935 /* 10936 * The initiator attempted to send multiple tagged commands with 10937 * the same ID. (It's fine if different initiators have the same 10938 * tag ID.) 10939 * 10940 * Even if all of those conditions are true, we don't kill the I/O 10941 * if the command ahead of us has been aborted. We won't end up 10942 * sending it to the FETD, and it's perfectly legal to resend a 10943 * command with the same tag number as long as the previous 10944 * instance of this tag number has been aborted somehow. 10945 */ 10946 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10947 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10948 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10949 && ((pending_io->io_hdr.nexus.targ_port == 10950 ooa_io->io_hdr.nexus.targ_port) 10951 && (pending_io->io_hdr.nexus.initid.id == 10952 ooa_io->io_hdr.nexus.initid.id)) 10953 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10954 return (CTL_ACTION_OVERLAP_TAG); 10955 10956 /* 10957 * If we get a head of queue tag, SAM-3 says that we should 10958 * immediately execute it. 10959 * 10960 * What happens if this command would normally block for some other 10961 * reason? e.g. a request sense with a head of queue tag 10962 * immediately after a write. Normally that would block, but this 10963 * will result in its getting executed immediately... 10964 * 10965 * We currently return "pass" instead of "skip", so we'll end up 10966 * going through the rest of the queue to check for overlapped tags. 10967 * 10968 * XXX KDM check for other types of blockage first?? 10969 */ 10970 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10971 return (CTL_ACTION_PASS); 10972 10973 /* 10974 * Ordered tags have to block until all items ahead of them 10975 * have completed. If we get called with an ordered tag, we always 10976 * block, if something else is ahead of us in the queue. 10977 */ 10978 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10979 return (CTL_ACTION_BLOCK); 10980 10981 /* 10982 * Simple tags get blocked until all head of queue and ordered tags 10983 * ahead of them have completed. I'm lumping untagged commands in 10984 * with simple tags here. XXX KDM is that the right thing to do? 10985 */ 10986 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10987 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10988 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10989 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10990 return (CTL_ACTION_BLOCK); 10991 10992 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10993 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10994 10995 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10996 10997 switch (serialize_row[pending_entry->seridx]) { 10998 case CTL_SER_BLOCK: 10999 return (CTL_ACTION_BLOCK); 11000 break; /* NOTREACHED */ 11001 case CTL_SER_EXTENT: 11002 return (ctl_extent_check(pending_io, ooa_io)); 11003 break; /* NOTREACHED */ 11004 case CTL_SER_PASS: 11005 return (CTL_ACTION_PASS); 11006 break; /* NOTREACHED */ 11007 case CTL_SER_SKIP: 11008 return (CTL_ACTION_SKIP); 11009 break; 11010 default: 11011 panic("invalid serialization value %d", 11012 serialize_row[pending_entry->seridx]); 11013 break; /* NOTREACHED */ 11014 } 11015 11016 return (CTL_ACTION_ERROR); 11017} 11018 11019/* 11020 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11021 * Assumptions: 11022 * - pending_io is generally either incoming, or on the blocked queue 11023 * - starting I/O is the I/O we want to start the check with. 11024 */ 11025static ctl_action 11026ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11027 union ctl_io *starting_io) 11028{ 11029 union ctl_io *ooa_io; 11030 ctl_action action; 11031 11032 mtx_assert(&lun->lun_lock, MA_OWNED); 11033 11034 /* 11035 * Run back along the OOA queue, starting with the current 11036 * blocked I/O and going through every I/O before it on the 11037 * queue. If starting_io is NULL, we'll just end up returning 11038 * CTL_ACTION_PASS. 11039 */ 11040 for (ooa_io = starting_io; ooa_io != NULL; 11041 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11042 ooa_links)){ 11043 11044 /* 11045 * This routine just checks to see whether 11046 * cur_blocked is blocked by ooa_io, which is ahead 11047 * of it in the queue. It doesn't queue/dequeue 11048 * cur_blocked. 11049 */ 11050 action = ctl_check_for_blockage(pending_io, ooa_io); 11051 switch (action) { 11052 case CTL_ACTION_BLOCK: 11053 case CTL_ACTION_OVERLAP: 11054 case CTL_ACTION_OVERLAP_TAG: 11055 case CTL_ACTION_SKIP: 11056 case CTL_ACTION_ERROR: 11057 return (action); 11058 break; /* NOTREACHED */ 11059 case CTL_ACTION_PASS: 11060 break; 11061 default: 11062 panic("invalid action %d", action); 11063 break; /* NOTREACHED */ 11064 } 11065 } 11066 11067 return (CTL_ACTION_PASS); 11068} 11069 11070/* 11071 * Assumptions: 11072 * - An I/O has just completed, and has been removed from the per-LUN OOA 11073 * queue, so some items on the blocked queue may now be unblocked. 11074 */ 11075static int 11076ctl_check_blocked(struct ctl_lun *lun) 11077{ 11078 union ctl_io *cur_blocked, *next_blocked; 11079 11080 mtx_assert(&lun->lun_lock, MA_OWNED); 11081 11082 /* 11083 * Run forward from the head of the blocked queue, checking each 11084 * entry against the I/Os prior to it on the OOA queue to see if 11085 * there is still any blockage. 11086 * 11087 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11088 * with our removing a variable on it while it is traversing the 11089 * list. 11090 */ 11091 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11092 cur_blocked != NULL; cur_blocked = next_blocked) { 11093 union ctl_io *prev_ooa; 11094 ctl_action action; 11095 11096 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11097 blocked_links); 11098 11099 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11100 ctl_ooaq, ooa_links); 11101 11102 /* 11103 * If cur_blocked happens to be the first item in the OOA 11104 * queue now, prev_ooa will be NULL, and the action 11105 * returned will just be CTL_ACTION_PASS. 11106 */ 11107 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11108 11109 switch (action) { 11110 case CTL_ACTION_BLOCK: 11111 /* Nothing to do here, still blocked */ 11112 break; 11113 case CTL_ACTION_OVERLAP: 11114 case CTL_ACTION_OVERLAP_TAG: 11115 /* 11116 * This shouldn't happen! In theory we've already 11117 * checked this command for overlap... 11118 */ 11119 break; 11120 case CTL_ACTION_PASS: 11121 case CTL_ACTION_SKIP: { 11122 struct ctl_softc *softc; 11123 const struct ctl_cmd_entry *entry; 11124 uint32_t initidx; 11125 int isc_retval; 11126 11127 /* 11128 * The skip case shouldn't happen, this transaction 11129 * should have never made it onto the blocked queue. 11130 */ 11131 /* 11132 * This I/O is no longer blocked, we can remove it 11133 * from the blocked queue. Since this is a TAILQ 11134 * (doubly linked list), we can do O(1) removals 11135 * from any place on the list. 11136 */ 11137 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11138 blocked_links); 11139 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11140 11141 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11142 /* 11143 * Need to send IO back to original side to 11144 * run 11145 */ 11146 union ctl_ha_msg msg_info; 11147 11148 msg_info.hdr.original_sc = 11149 cur_blocked->io_hdr.original_sc; 11150 msg_info.hdr.serializing_sc = cur_blocked; 11151 msg_info.hdr.msg_type = CTL_MSG_R2R; 11152 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11153 &msg_info, sizeof(msg_info), 0)) > 11154 CTL_HA_STATUS_SUCCESS) { 11155 printf("CTL:Check Blocked error from " 11156 "ctl_ha_msg_send %d\n", 11157 isc_retval); 11158 } 11159 break; 11160 } 11161 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 11162 softc = control_softc; 11163 11164 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11165 11166 /* 11167 * Check this I/O for LUN state changes that may 11168 * have happened while this command was blocked. 11169 * The LUN state may have been changed by a command 11170 * ahead of us in the queue, so we need to re-check 11171 * for any states that can be caused by SCSI 11172 * commands. 11173 */ 11174 if (ctl_scsiio_lun_check(softc, lun, entry, 11175 &cur_blocked->scsiio) == 0) { 11176 cur_blocked->io_hdr.flags |= 11177 CTL_FLAG_IS_WAS_ON_RTR; 11178 ctl_enqueue_rtr(cur_blocked); 11179 } else 11180 ctl_done(cur_blocked); 11181 break; 11182 } 11183 default: 11184 /* 11185 * This probably shouldn't happen -- we shouldn't 11186 * get CTL_ACTION_ERROR, or anything else. 11187 */ 11188 break; 11189 } 11190 } 11191 11192 return (CTL_RETVAL_COMPLETE); 11193} 11194 11195/* 11196 * This routine (with one exception) checks LUN flags that can be set by 11197 * commands ahead of us in the OOA queue. These flags have to be checked 11198 * when a command initially comes in, and when we pull a command off the 11199 * blocked queue and are preparing to execute it. The reason we have to 11200 * check these flags for commands on the blocked queue is that the LUN 11201 * state may have been changed by a command ahead of us while we're on the 11202 * blocked queue. 11203 * 11204 * Ordering is somewhat important with these checks, so please pay 11205 * careful attention to the placement of any new checks. 11206 */ 11207static int 11208ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11209 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11210{ 11211 int retval; 11212 11213 retval = 0; 11214 11215 mtx_assert(&lun->lun_lock, MA_OWNED); 11216 11217 /* 11218 * If this shelf is a secondary shelf controller, we have to reject 11219 * any media access commands. 11220 */ 11221#if 0 11222 /* No longer needed for HA */ 11223 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11224 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11225 ctl_set_lun_standby(ctsio); 11226 retval = 1; 11227 goto bailout; 11228 } 11229#endif 11230 11231 /* 11232 * Check for a reservation conflict. If this command isn't allowed 11233 * even on reserved LUNs, and if this initiator isn't the one who 11234 * reserved us, reject the command with a reservation conflict. 11235 */ 11236 if ((lun->flags & CTL_LUN_RESERVED) 11237 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11238 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11239 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11240 || (ctsio->io_hdr.nexus.targ_target.id != 11241 lun->rsv_nexus.targ_target.id)) { 11242 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11243 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11244 retval = 1; 11245 goto bailout; 11246 } 11247 } 11248 11249 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11250 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11251 uint32_t residx; 11252 11253 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11254 /* 11255 * if we aren't registered or it's a res holder type 11256 * reservation and this isn't the res holder then set a 11257 * conflict. 11258 * NOTE: Commands which might be allowed on write exclusive 11259 * type reservations are checked in the particular command 11260 * for a conflict. Read and SSU are the only ones. 11261 */ 11262 if (!lun->per_res[residx].registered 11263 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11264 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11265 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11266 retval = 1; 11267 goto bailout; 11268 } 11269 11270 } 11271 11272 if ((lun->flags & CTL_LUN_OFFLINE) 11273 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11274 ctl_set_lun_not_ready(ctsio); 11275 retval = 1; 11276 goto bailout; 11277 } 11278 11279 /* 11280 * If the LUN is stopped, see if this particular command is allowed 11281 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11282 */ 11283 if ((lun->flags & CTL_LUN_STOPPED) 11284 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11285 /* "Logical unit not ready, initializing cmd. required" */ 11286 ctl_set_lun_stopped(ctsio); 11287 retval = 1; 11288 goto bailout; 11289 } 11290 11291 if ((lun->flags & CTL_LUN_INOPERABLE) 11292 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11293 /* "Medium format corrupted" */ 11294 ctl_set_medium_format_corrupted(ctsio); 11295 retval = 1; 11296 goto bailout; 11297 } 11298 11299bailout: 11300 return (retval); 11301 11302} 11303 11304static void 11305ctl_failover_io(union ctl_io *io, int have_lock) 11306{ 11307 ctl_set_busy(&io->scsiio); 11308 ctl_done(io); 11309} 11310 11311static void 11312ctl_failover(void) 11313{ 11314 struct ctl_lun *lun; 11315 struct ctl_softc *ctl_softc; 11316 union ctl_io *next_io, *pending_io; 11317 union ctl_io *io; 11318 int lun_idx; 11319 int i; 11320 11321 ctl_softc = control_softc; 11322 11323 mtx_lock(&ctl_softc->ctl_lock); 11324 /* 11325 * Remove any cmds from the other SC from the rtr queue. These 11326 * will obviously only be for LUNs for which we're the primary. 11327 * We can't send status or get/send data for these commands. 11328 * Since they haven't been executed yet, we can just remove them. 11329 * We'll either abort them or delete them below, depending on 11330 * which HA mode we're in. 11331 */ 11332#ifdef notyet 11333 mtx_lock(&ctl_softc->queue_lock); 11334 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11335 io != NULL; io = next_io) { 11336 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11337 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11338 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11339 ctl_io_hdr, links); 11340 } 11341 mtx_unlock(&ctl_softc->queue_lock); 11342#endif 11343 11344 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11345 lun = ctl_softc->ctl_luns[lun_idx]; 11346 if (lun==NULL) 11347 continue; 11348 11349 /* 11350 * Processor LUNs are primary on both sides. 11351 * XXX will this always be true? 11352 */ 11353 if (lun->be_lun->lun_type == T_PROCESSOR) 11354 continue; 11355 11356 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11357 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11358 printf("FAILOVER: primary lun %d\n", lun_idx); 11359 /* 11360 * Remove all commands from the other SC. First from the 11361 * blocked queue then from the ooa queue. Once we have 11362 * removed them. Call ctl_check_blocked to see if there 11363 * is anything that can run. 11364 */ 11365 for (io = (union ctl_io *)TAILQ_FIRST( 11366 &lun->blocked_queue); io != NULL; io = next_io) { 11367 11368 next_io = (union ctl_io *)TAILQ_NEXT( 11369 &io->io_hdr, blocked_links); 11370 11371 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11372 TAILQ_REMOVE(&lun->blocked_queue, 11373 &io->io_hdr,blocked_links); 11374 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11375 TAILQ_REMOVE(&lun->ooa_queue, 11376 &io->io_hdr, ooa_links); 11377 11378 ctl_free_io(io); 11379 } 11380 } 11381 11382 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11383 io != NULL; io = next_io) { 11384 11385 next_io = (union ctl_io *)TAILQ_NEXT( 11386 &io->io_hdr, ooa_links); 11387 11388 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11389 11390 TAILQ_REMOVE(&lun->ooa_queue, 11391 &io->io_hdr, 11392 ooa_links); 11393 11394 ctl_free_io(io); 11395 } 11396 } 11397 ctl_check_blocked(lun); 11398 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11399 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11400 11401 printf("FAILOVER: primary lun %d\n", lun_idx); 11402 /* 11403 * Abort all commands from the other SC. We can't 11404 * send status back for them now. These should get 11405 * cleaned up when they are completed or come out 11406 * for a datamove operation. 11407 */ 11408 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11409 io != NULL; io = next_io) { 11410 next_io = (union ctl_io *)TAILQ_NEXT( 11411 &io->io_hdr, ooa_links); 11412 11413 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11414 io->io_hdr.flags |= CTL_FLAG_ABORT; 11415 } 11416 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11417 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11418 11419 printf("FAILOVER: secondary lun %d\n", lun_idx); 11420 11421 lun->flags |= CTL_LUN_PRIMARY_SC; 11422 11423 /* 11424 * We send all I/O that was sent to this controller 11425 * and redirected to the other side back with 11426 * busy status, and have the initiator retry it. 11427 * Figuring out how much data has been transferred, 11428 * etc. and picking up where we left off would be 11429 * very tricky. 11430 * 11431 * XXX KDM need to remove I/O from the blocked 11432 * queue as well! 11433 */ 11434 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11435 &lun->ooa_queue); pending_io != NULL; 11436 pending_io = next_io) { 11437 11438 next_io = (union ctl_io *)TAILQ_NEXT( 11439 &pending_io->io_hdr, ooa_links); 11440 11441 pending_io->io_hdr.flags &= 11442 ~CTL_FLAG_SENT_2OTHER_SC; 11443 11444 if (pending_io->io_hdr.flags & 11445 CTL_FLAG_IO_ACTIVE) { 11446 pending_io->io_hdr.flags |= 11447 CTL_FLAG_FAILOVER; 11448 } else { 11449 ctl_set_busy(&pending_io->scsiio); 11450 ctl_done(pending_io); 11451 } 11452 } 11453 11454 /* 11455 * Build Unit Attention 11456 */ 11457 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11458 lun->pending_ua[i] |= 11459 CTL_UA_ASYM_ACC_CHANGE; 11460 } 11461 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11462 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11463 printf("FAILOVER: secondary lun %d\n", lun_idx); 11464 /* 11465 * if the first io on the OOA is not on the RtR queue 11466 * add it. 11467 */ 11468 lun->flags |= CTL_LUN_PRIMARY_SC; 11469 11470 pending_io = (union ctl_io *)TAILQ_FIRST( 11471 &lun->ooa_queue); 11472 if (pending_io==NULL) { 11473 printf("Nothing on OOA queue\n"); 11474 continue; 11475 } 11476 11477 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11478 if ((pending_io->io_hdr.flags & 11479 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11480 pending_io->io_hdr.flags |= 11481 CTL_FLAG_IS_WAS_ON_RTR; 11482 ctl_enqueue_rtr(pending_io); 11483 } 11484#if 0 11485 else 11486 { 11487 printf("Tag 0x%04x is running\n", 11488 pending_io->scsiio.tag_num); 11489 } 11490#endif 11491 11492 next_io = (union ctl_io *)TAILQ_NEXT( 11493 &pending_io->io_hdr, ooa_links); 11494 for (pending_io=next_io; pending_io != NULL; 11495 pending_io = next_io) { 11496 pending_io->io_hdr.flags &= 11497 ~CTL_FLAG_SENT_2OTHER_SC; 11498 next_io = (union ctl_io *)TAILQ_NEXT( 11499 &pending_io->io_hdr, ooa_links); 11500 if (pending_io->io_hdr.flags & 11501 CTL_FLAG_IS_WAS_ON_RTR) { 11502#if 0 11503 printf("Tag 0x%04x is running\n", 11504 pending_io->scsiio.tag_num); 11505#endif 11506 continue; 11507 } 11508 11509 switch (ctl_check_ooa(lun, pending_io, 11510 (union ctl_io *)TAILQ_PREV( 11511 &pending_io->io_hdr, ctl_ooaq, 11512 ooa_links))) { 11513 11514 case CTL_ACTION_BLOCK: 11515 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11516 &pending_io->io_hdr, 11517 blocked_links); 11518 pending_io->io_hdr.flags |= 11519 CTL_FLAG_BLOCKED; 11520 break; 11521 case CTL_ACTION_PASS: 11522 case CTL_ACTION_SKIP: 11523 pending_io->io_hdr.flags |= 11524 CTL_FLAG_IS_WAS_ON_RTR; 11525 ctl_enqueue_rtr(pending_io); 11526 break; 11527 case CTL_ACTION_OVERLAP: 11528 ctl_set_overlapped_cmd( 11529 (struct ctl_scsiio *)pending_io); 11530 ctl_done(pending_io); 11531 break; 11532 case CTL_ACTION_OVERLAP_TAG: 11533 ctl_set_overlapped_tag( 11534 (struct ctl_scsiio *)pending_io, 11535 pending_io->scsiio.tag_num & 0xff); 11536 ctl_done(pending_io); 11537 break; 11538 case CTL_ACTION_ERROR: 11539 default: 11540 ctl_set_internal_failure( 11541 (struct ctl_scsiio *)pending_io, 11542 0, // sks_valid 11543 0); //retry count 11544 ctl_done(pending_io); 11545 break; 11546 } 11547 } 11548 11549 /* 11550 * Build Unit Attention 11551 */ 11552 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11553 lun->pending_ua[i] |= 11554 CTL_UA_ASYM_ACC_CHANGE; 11555 } 11556 } else { 11557 panic("Unhandled HA mode failover, LUN flags = %#x, " 11558 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11559 } 11560 } 11561 ctl_pause_rtr = 0; 11562 mtx_unlock(&ctl_softc->ctl_lock); 11563} 11564 11565static int 11566ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11567{ 11568 struct ctl_lun *lun; 11569 const struct ctl_cmd_entry *entry; 11570 uint32_t initidx, targ_lun; 11571 int retval; 11572 11573 retval = 0; 11574 11575 lun = NULL; 11576 11577 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11578 if ((targ_lun < CTL_MAX_LUNS) 11579 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11580 lun = ctl_softc->ctl_luns[targ_lun]; 11581 /* 11582 * If the LUN is invalid, pretend that it doesn't exist. 11583 * It will go away as soon as all pending I/O has been 11584 * completed. 11585 */ 11586 if (lun->flags & CTL_LUN_DISABLED) { 11587 lun = NULL; 11588 } else { 11589 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11590 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11591 lun->be_lun; 11592 if (lun->be_lun->lun_type == T_PROCESSOR) { 11593 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11594 } 11595 11596 /* 11597 * Every I/O goes into the OOA queue for a 11598 * particular LUN, and stays there until completion. 11599 */ 11600 mtx_lock(&lun->lun_lock); 11601 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11602 ooa_links); 11603 } 11604 } else { 11605 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11606 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11607 } 11608 11609 /* Get command entry and return error if it is unsuppotyed. */ 11610 entry = ctl_validate_command(ctsio); 11611 if (entry == NULL) { 11612 if (lun) 11613 mtx_unlock(&lun->lun_lock); 11614 return (retval); 11615 } 11616 11617 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11618 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11619 11620 /* 11621 * Check to see whether we can send this command to LUNs that don't 11622 * exist. This should pretty much only be the case for inquiry 11623 * and request sense. Further checks, below, really require having 11624 * a LUN, so we can't really check the command anymore. Just put 11625 * it on the rtr queue. 11626 */ 11627 if (lun == NULL) { 11628 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11629 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11630 ctl_enqueue_rtr((union ctl_io *)ctsio); 11631 return (retval); 11632 } 11633 11634 ctl_set_unsupported_lun(ctsio); 11635 ctl_done((union ctl_io *)ctsio); 11636 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11637 return (retval); 11638 } else { 11639 /* 11640 * Make sure we support this particular command on this LUN. 11641 * e.g., we don't support writes to the control LUN. 11642 */ 11643 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11644 mtx_unlock(&lun->lun_lock); 11645 ctl_set_invalid_opcode(ctsio); 11646 ctl_done((union ctl_io *)ctsio); 11647 return (retval); 11648 } 11649 } 11650 11651 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11652 11653#ifdef CTL_WITH_CA 11654 /* 11655 * If we've got a request sense, it'll clear the contingent 11656 * allegiance condition. Otherwise, if we have a CA condition for 11657 * this initiator, clear it, because it sent down a command other 11658 * than request sense. 11659 */ 11660 if ((ctsio->cdb[0] != REQUEST_SENSE) 11661 && (ctl_is_set(lun->have_ca, initidx))) 11662 ctl_clear_mask(lun->have_ca, initidx); 11663#endif 11664 11665 /* 11666 * If the command has this flag set, it handles its own unit 11667 * attention reporting, we shouldn't do anything. Otherwise we 11668 * check for any pending unit attentions, and send them back to the 11669 * initiator. We only do this when a command initially comes in, 11670 * not when we pull it off the blocked queue. 11671 * 11672 * According to SAM-3, section 5.3.2, the order that things get 11673 * presented back to the host is basically unit attentions caused 11674 * by some sort of reset event, busy status, reservation conflicts 11675 * or task set full, and finally any other status. 11676 * 11677 * One issue here is that some of the unit attentions we report 11678 * don't fall into the "reset" category (e.g. "reported luns data 11679 * has changed"). So reporting it here, before the reservation 11680 * check, may be technically wrong. I guess the only thing to do 11681 * would be to check for and report the reset events here, and then 11682 * check for the other unit attention types after we check for a 11683 * reservation conflict. 11684 * 11685 * XXX KDM need to fix this 11686 */ 11687 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11688 ctl_ua_type ua_type; 11689 11690 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11691 scsi_sense_data_type sense_format; 11692 11693 if (lun != NULL) 11694 sense_format = (lun->flags & 11695 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11696 SSD_TYPE_FIXED; 11697 else 11698 sense_format = SSD_TYPE_FIXED; 11699 11700 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11701 &ctsio->sense_data, sense_format); 11702 if (ua_type != CTL_UA_NONE) { 11703 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11704 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11705 CTL_AUTOSENSE; 11706 ctsio->sense_len = SSD_FULL_SIZE; 11707 mtx_unlock(&lun->lun_lock); 11708 ctl_done((union ctl_io *)ctsio); 11709 return (retval); 11710 } 11711 } 11712 } 11713 11714 11715 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11716 mtx_unlock(&lun->lun_lock); 11717 ctl_done((union ctl_io *)ctsio); 11718 return (retval); 11719 } 11720 11721 /* 11722 * XXX CHD this is where we want to send IO to other side if 11723 * this LUN is secondary on this SC. We will need to make a copy 11724 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11725 * the copy we send as FROM_OTHER. 11726 * We also need to stuff the address of the original IO so we can 11727 * find it easily. Something similar will need be done on the other 11728 * side so when we are done we can find the copy. 11729 */ 11730 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11731 union ctl_ha_msg msg_info; 11732 int isc_retval; 11733 11734 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11735 11736 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11737 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11738#if 0 11739 printf("1. ctsio %p\n", ctsio); 11740#endif 11741 msg_info.hdr.serializing_sc = NULL; 11742 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11743 msg_info.scsi.tag_num = ctsio->tag_num; 11744 msg_info.scsi.tag_type = ctsio->tag_type; 11745 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11746 11747 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11748 11749 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11750 (void *)&msg_info, sizeof(msg_info), 0)) > 11751 CTL_HA_STATUS_SUCCESS) { 11752 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11753 isc_retval); 11754 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11755 } else { 11756#if 0 11757 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11758#endif 11759 } 11760 11761 /* 11762 * XXX KDM this I/O is off the incoming queue, but hasn't 11763 * been inserted on any other queue. We may need to come 11764 * up with a holding queue while we wait for serialization 11765 * so that we have an idea of what we're waiting for from 11766 * the other side. 11767 */ 11768 mtx_unlock(&lun->lun_lock); 11769 return (retval); 11770 } 11771 11772 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11773 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11774 ctl_ooaq, ooa_links))) { 11775 case CTL_ACTION_BLOCK: 11776 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11777 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11778 blocked_links); 11779 mtx_unlock(&lun->lun_lock); 11780 return (retval); 11781 case CTL_ACTION_PASS: 11782 case CTL_ACTION_SKIP: 11783 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11784 mtx_unlock(&lun->lun_lock); 11785 ctl_enqueue_rtr((union ctl_io *)ctsio); 11786 break; 11787 case CTL_ACTION_OVERLAP: 11788 mtx_unlock(&lun->lun_lock); 11789 ctl_set_overlapped_cmd(ctsio); 11790 ctl_done((union ctl_io *)ctsio); 11791 break; 11792 case CTL_ACTION_OVERLAP_TAG: 11793 mtx_unlock(&lun->lun_lock); 11794 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11795 ctl_done((union ctl_io *)ctsio); 11796 break; 11797 case CTL_ACTION_ERROR: 11798 default: 11799 mtx_unlock(&lun->lun_lock); 11800 ctl_set_internal_failure(ctsio, 11801 /*sks_valid*/ 0, 11802 /*retry_count*/ 0); 11803 ctl_done((union ctl_io *)ctsio); 11804 break; 11805 } 11806 return (retval); 11807} 11808 11809const struct ctl_cmd_entry * 11810ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11811{ 11812 const struct ctl_cmd_entry *entry; 11813 int service_action; 11814 11815 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11816 if (entry->flags & CTL_CMD_FLAG_SA5) { 11817 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11818 entry = &((const struct ctl_cmd_entry *) 11819 entry->execute)[service_action]; 11820 } 11821 return (entry); 11822} 11823 11824const struct ctl_cmd_entry * 11825ctl_validate_command(struct ctl_scsiio *ctsio) 11826{ 11827 const struct ctl_cmd_entry *entry; 11828 int i; 11829 uint8_t diff; 11830 11831 entry = ctl_get_cmd_entry(ctsio); 11832 if (entry->execute == NULL) { 11833 ctl_set_invalid_opcode(ctsio); 11834 ctl_done((union ctl_io *)ctsio); 11835 return (NULL); 11836 } 11837 KASSERT(entry->length > 0, 11838 ("Not defined length for command 0x%02x/0x%02x", 11839 ctsio->cdb[0], ctsio->cdb[1])); 11840 for (i = 1; i < entry->length; i++) { 11841 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11842 if (diff == 0) 11843 continue; 11844 ctl_set_invalid_field(ctsio, 11845 /*sks_valid*/ 1, 11846 /*command*/ 1, 11847 /*field*/ i, 11848 /*bit_valid*/ 1, 11849 /*bit*/ fls(diff) - 1); 11850 ctl_done((union ctl_io *)ctsio); 11851 return (NULL); 11852 } 11853 return (entry); 11854} 11855 11856static int 11857ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11858{ 11859 11860 switch (lun_type) { 11861 case T_PROCESSOR: 11862 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11863 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11864 return (0); 11865 break; 11866 case T_DIRECT: 11867 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11868 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11869 return (0); 11870 break; 11871 default: 11872 return (0); 11873 } 11874 return (1); 11875} 11876 11877static int 11878ctl_scsiio(struct ctl_scsiio *ctsio) 11879{ 11880 int retval; 11881 const struct ctl_cmd_entry *entry; 11882 11883 retval = CTL_RETVAL_COMPLETE; 11884 11885 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11886 11887 entry = ctl_get_cmd_entry(ctsio); 11888 11889 /* 11890 * If this I/O has been aborted, just send it straight to 11891 * ctl_done() without executing it. 11892 */ 11893 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11894 ctl_done((union ctl_io *)ctsio); 11895 goto bailout; 11896 } 11897 11898 /* 11899 * All the checks should have been handled by ctl_scsiio_precheck(). 11900 * We should be clear now to just execute the I/O. 11901 */ 11902 retval = entry->execute(ctsio); 11903 11904bailout: 11905 return (retval); 11906} 11907 11908/* 11909 * Since we only implement one target right now, a bus reset simply resets 11910 * our single target. 11911 */ 11912static int 11913ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11914{ 11915 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11916} 11917 11918static int 11919ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11920 ctl_ua_type ua_type) 11921{ 11922 struct ctl_lun *lun; 11923 int retval; 11924 11925 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11926 union ctl_ha_msg msg_info; 11927 11928 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11929 msg_info.hdr.nexus = io->io_hdr.nexus; 11930 if (ua_type==CTL_UA_TARG_RESET) 11931 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11932 else 11933 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11934 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11935 msg_info.hdr.original_sc = NULL; 11936 msg_info.hdr.serializing_sc = NULL; 11937 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11938 (void *)&msg_info, sizeof(msg_info), 0)) { 11939 } 11940 } 11941 retval = 0; 11942 11943 mtx_lock(&ctl_softc->ctl_lock); 11944 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11945 retval += ctl_lun_reset(lun, io, ua_type); 11946 mtx_unlock(&ctl_softc->ctl_lock); 11947 11948 return (retval); 11949} 11950 11951/* 11952 * The LUN should always be set. The I/O is optional, and is used to 11953 * distinguish between I/Os sent by this initiator, and by other 11954 * initiators. We set unit attention for initiators other than this one. 11955 * SAM-3 is vague on this point. It does say that a unit attention should 11956 * be established for other initiators when a LUN is reset (see section 11957 * 5.7.3), but it doesn't specifically say that the unit attention should 11958 * be established for this particular initiator when a LUN is reset. Here 11959 * is the relevant text, from SAM-3 rev 8: 11960 * 11961 * 5.7.2 When a SCSI initiator port aborts its own tasks 11962 * 11963 * When a SCSI initiator port causes its own task(s) to be aborted, no 11964 * notification that the task(s) have been aborted shall be returned to 11965 * the SCSI initiator port other than the completion response for the 11966 * command or task management function action that caused the task(s) to 11967 * be aborted and notification(s) associated with related effects of the 11968 * action (e.g., a reset unit attention condition). 11969 * 11970 * XXX KDM for now, we're setting unit attention for all initiators. 11971 */ 11972static int 11973ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11974{ 11975 union ctl_io *xio; 11976#if 0 11977 uint32_t initindex; 11978#endif 11979 int i; 11980 11981 mtx_lock(&lun->lun_lock); 11982 /* 11983 * Run through the OOA queue and abort each I/O. 11984 */ 11985#if 0 11986 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11987#endif 11988 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11989 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11990 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11991 } 11992 11993 /* 11994 * This version sets unit attention for every 11995 */ 11996#if 0 11997 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11998 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11999 if (initindex == i) 12000 continue; 12001 lun->pending_ua[i] |= ua_type; 12002 } 12003#endif 12004 12005 /* 12006 * A reset (any kind, really) clears reservations established with 12007 * RESERVE/RELEASE. It does not clear reservations established 12008 * with PERSISTENT RESERVE OUT, but we don't support that at the 12009 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12010 * reservations made with the RESERVE/RELEASE commands, because 12011 * those commands are obsolete in SPC-3. 12012 */ 12013 lun->flags &= ~CTL_LUN_RESERVED; 12014 12015 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12016#ifdef CTL_WITH_CA 12017 ctl_clear_mask(lun->have_ca, i); 12018#endif 12019 lun->pending_ua[i] |= ua_type; 12020 } 12021 mtx_unlock(&lun->lun_lock); 12022 12023 return (0); 12024} 12025 12026static int 12027ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12028 int other_sc) 12029{ 12030 union ctl_io *xio; 12031 int found; 12032 12033 mtx_assert(&lun->lun_lock, MA_OWNED); 12034 12035 /* 12036 * Run through the OOA queue and attempt to find the given I/O. 12037 * The target port, initiator ID, tag type and tag number have to 12038 * match the values that we got from the initiator. If we have an 12039 * untagged command to abort, simply abort the first untagged command 12040 * we come to. We only allow one untagged command at a time of course. 12041 */ 12042 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12043 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12044 12045 if ((targ_port == UINT32_MAX || 12046 targ_port == xio->io_hdr.nexus.targ_port) && 12047 (init_id == UINT32_MAX || 12048 init_id == xio->io_hdr.nexus.initid.id)) { 12049 if (targ_port != xio->io_hdr.nexus.targ_port || 12050 init_id != xio->io_hdr.nexus.initid.id) 12051 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12052 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12053 found = 1; 12054 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12055 union ctl_ha_msg msg_info; 12056 12057 msg_info.hdr.nexus = xio->io_hdr.nexus; 12058 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12059 msg_info.task.tag_num = xio->scsiio.tag_num; 12060 msg_info.task.tag_type = xio->scsiio.tag_type; 12061 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12062 msg_info.hdr.original_sc = NULL; 12063 msg_info.hdr.serializing_sc = NULL; 12064 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12065 (void *)&msg_info, sizeof(msg_info), 0); 12066 } 12067 } 12068 } 12069 return (found); 12070} 12071 12072static int 12073ctl_abort_task_set(union ctl_io *io) 12074{ 12075 struct ctl_softc *softc = control_softc; 12076 struct ctl_lun *lun; 12077 uint32_t targ_lun; 12078 12079 /* 12080 * Look up the LUN. 12081 */ 12082 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12083 mtx_lock(&softc->ctl_lock); 12084 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12085 lun = softc->ctl_luns[targ_lun]; 12086 else { 12087 mtx_unlock(&softc->ctl_lock); 12088 return (1); 12089 } 12090 12091 mtx_lock(&lun->lun_lock); 12092 mtx_unlock(&softc->ctl_lock); 12093 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12094 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12095 io->io_hdr.nexus.initid.id, 12096 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12097 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12098 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12099 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12100 } 12101 mtx_unlock(&lun->lun_lock); 12102 return (0); 12103} 12104 12105static int 12106ctl_i_t_nexus_reset(union ctl_io *io) 12107{ 12108 struct ctl_softc *softc = control_softc; 12109 struct ctl_lun *lun; 12110 uint32_t initindex; 12111 12112 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12113 mtx_lock(&softc->ctl_lock); 12114 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12115 mtx_lock(&lun->lun_lock); 12116 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12117 io->io_hdr.nexus.initid.id, 12118 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12119#ifdef CTL_WITH_CA 12120 ctl_clear_mask(lun->have_ca, initindex); 12121#endif 12122 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12123 mtx_unlock(&lun->lun_lock); 12124 } 12125 mtx_unlock(&softc->ctl_lock); 12126 return (0); 12127} 12128 12129static int 12130ctl_abort_task(union ctl_io *io) 12131{ 12132 union ctl_io *xio; 12133 struct ctl_lun *lun; 12134 struct ctl_softc *ctl_softc; 12135#if 0 12136 struct sbuf sb; 12137 char printbuf[128]; 12138#endif 12139 int found; 12140 uint32_t targ_lun; 12141 12142 ctl_softc = control_softc; 12143 found = 0; 12144 12145 /* 12146 * Look up the LUN. 12147 */ 12148 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12149 mtx_lock(&ctl_softc->ctl_lock); 12150 if ((targ_lun < CTL_MAX_LUNS) 12151 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12152 lun = ctl_softc->ctl_luns[targ_lun]; 12153 else { 12154 mtx_unlock(&ctl_softc->ctl_lock); 12155 return (1); 12156 } 12157 12158#if 0 12159 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12160 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12161#endif 12162 12163 mtx_lock(&lun->lun_lock); 12164 mtx_unlock(&ctl_softc->ctl_lock); 12165 /* 12166 * Run through the OOA queue and attempt to find the given I/O. 12167 * The target port, initiator ID, tag type and tag number have to 12168 * match the values that we got from the initiator. If we have an 12169 * untagged command to abort, simply abort the first untagged command 12170 * we come to. We only allow one untagged command at a time of course. 12171 */ 12172#if 0 12173 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12174#endif 12175 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12176 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12177#if 0 12178 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12179 12180 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12181 lun->lun, xio->scsiio.tag_num, 12182 xio->scsiio.tag_type, 12183 (xio->io_hdr.blocked_links.tqe_prev 12184 == NULL) ? "" : " BLOCKED", 12185 (xio->io_hdr.flags & 12186 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12187 (xio->io_hdr.flags & 12188 CTL_FLAG_ABORT) ? " ABORT" : "", 12189 (xio->io_hdr.flags & 12190 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12191 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12192 sbuf_finish(&sb); 12193 printf("%s\n", sbuf_data(&sb)); 12194#endif 12195 12196 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12197 && (xio->io_hdr.nexus.initid.id == 12198 io->io_hdr.nexus.initid.id)) { 12199 /* 12200 * If the abort says that the task is untagged, the 12201 * task in the queue must be untagged. Otherwise, 12202 * we just check to see whether the tag numbers 12203 * match. This is because the QLogic firmware 12204 * doesn't pass back the tag type in an abort 12205 * request. 12206 */ 12207#if 0 12208 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12209 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12210 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12211#endif 12212 /* 12213 * XXX KDM we've got problems with FC, because it 12214 * doesn't send down a tag type with aborts. So we 12215 * can only really go by the tag number... 12216 * This may cause problems with parallel SCSI. 12217 * Need to figure that out!! 12218 */ 12219 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12220 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12221 found = 1; 12222 if ((io->io_hdr.flags & 12223 CTL_FLAG_FROM_OTHER_SC) == 0 && 12224 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12225 union ctl_ha_msg msg_info; 12226 12227 io->io_hdr.flags |= 12228 CTL_FLAG_SENT_2OTHER_SC; 12229 msg_info.hdr.nexus = io->io_hdr.nexus; 12230 msg_info.task.task_action = 12231 CTL_TASK_ABORT_TASK; 12232 msg_info.task.tag_num = 12233 io->taskio.tag_num; 12234 msg_info.task.tag_type = 12235 io->taskio.tag_type; 12236 msg_info.hdr.msg_type = 12237 CTL_MSG_MANAGE_TASKS; 12238 msg_info.hdr.original_sc = NULL; 12239 msg_info.hdr.serializing_sc = NULL; 12240#if 0 12241 printf("Sent Abort to other side\n"); 12242#endif 12243 if (CTL_HA_STATUS_SUCCESS != 12244 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12245 (void *)&msg_info, 12246 sizeof(msg_info), 0)) { 12247 } 12248 } 12249#if 0 12250 printf("ctl_abort_task: found I/O to abort\n"); 12251#endif 12252 break; 12253 } 12254 } 12255 } 12256 mtx_unlock(&lun->lun_lock); 12257 12258 if (found == 0) { 12259 /* 12260 * This isn't really an error. It's entirely possible for 12261 * the abort and command completion to cross on the wire. 12262 * This is more of an informative/diagnostic error. 12263 */ 12264#if 0 12265 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12266 "%d:%d:%d:%d tag %d type %d\n", 12267 io->io_hdr.nexus.initid.id, 12268 io->io_hdr.nexus.targ_port, 12269 io->io_hdr.nexus.targ_target.id, 12270 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12271 io->taskio.tag_type); 12272#endif 12273 } 12274 return (0); 12275} 12276 12277static void 12278ctl_run_task(union ctl_io *io) 12279{ 12280 struct ctl_softc *ctl_softc = control_softc; 12281 int retval = 1; 12282 const char *task_desc; 12283 12284 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12285 12286 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12287 ("ctl_run_task: Unextected io_type %d\n", 12288 io->io_hdr.io_type)); 12289 12290 task_desc = ctl_scsi_task_string(&io->taskio); 12291 if (task_desc != NULL) { 12292#ifdef NEEDTOPORT 12293 csevent_log(CSC_CTL | CSC_SHELF_SW | 12294 CTL_TASK_REPORT, 12295 csevent_LogType_Trace, 12296 csevent_Severity_Information, 12297 csevent_AlertLevel_Green, 12298 csevent_FRU_Firmware, 12299 csevent_FRU_Unknown, 12300 "CTL: received task: %s",task_desc); 12301#endif 12302 } else { 12303#ifdef NEEDTOPORT 12304 csevent_log(CSC_CTL | CSC_SHELF_SW | 12305 CTL_TASK_REPORT, 12306 csevent_LogType_Trace, 12307 csevent_Severity_Information, 12308 csevent_AlertLevel_Green, 12309 csevent_FRU_Firmware, 12310 csevent_FRU_Unknown, 12311 "CTL: received unknown task " 12312 "type: %d (%#x)", 12313 io->taskio.task_action, 12314 io->taskio.task_action); 12315#endif 12316 } 12317 switch (io->taskio.task_action) { 12318 case CTL_TASK_ABORT_TASK: 12319 retval = ctl_abort_task(io); 12320 break; 12321 case CTL_TASK_ABORT_TASK_SET: 12322 case CTL_TASK_CLEAR_TASK_SET: 12323 retval = ctl_abort_task_set(io); 12324 break; 12325 case CTL_TASK_CLEAR_ACA: 12326 break; 12327 case CTL_TASK_I_T_NEXUS_RESET: 12328 retval = ctl_i_t_nexus_reset(io); 12329 break; 12330 case CTL_TASK_LUN_RESET: { 12331 struct ctl_lun *lun; 12332 uint32_t targ_lun; 12333 12334 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12335 mtx_lock(&ctl_softc->ctl_lock); 12336 if ((targ_lun < CTL_MAX_LUNS) 12337 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12338 lun = ctl_softc->ctl_luns[targ_lun]; 12339 else { 12340 mtx_unlock(&ctl_softc->ctl_lock); 12341 retval = 1; 12342 break; 12343 } 12344 12345 if (!(io->io_hdr.flags & 12346 CTL_FLAG_FROM_OTHER_SC)) { 12347 union ctl_ha_msg msg_info; 12348 12349 io->io_hdr.flags |= 12350 CTL_FLAG_SENT_2OTHER_SC; 12351 msg_info.hdr.msg_type = 12352 CTL_MSG_MANAGE_TASKS; 12353 msg_info.hdr.nexus = io->io_hdr.nexus; 12354 msg_info.task.task_action = 12355 CTL_TASK_LUN_RESET; 12356 msg_info.hdr.original_sc = NULL; 12357 msg_info.hdr.serializing_sc = NULL; 12358 if (CTL_HA_STATUS_SUCCESS != 12359 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12360 (void *)&msg_info, 12361 sizeof(msg_info), 0)) { 12362 } 12363 } 12364 12365 retval = ctl_lun_reset(lun, io, 12366 CTL_UA_LUN_RESET); 12367 mtx_unlock(&ctl_softc->ctl_lock); 12368 break; 12369 } 12370 case CTL_TASK_TARGET_RESET: 12371 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12372 break; 12373 case CTL_TASK_BUS_RESET: 12374 retval = ctl_bus_reset(ctl_softc, io); 12375 break; 12376 case CTL_TASK_PORT_LOGIN: 12377 break; 12378 case CTL_TASK_PORT_LOGOUT: 12379 break; 12380 default: 12381 printf("ctl_run_task: got unknown task management event %d\n", 12382 io->taskio.task_action); 12383 break; 12384 } 12385 if (retval == 0) 12386 io->io_hdr.status = CTL_SUCCESS; 12387 else 12388 io->io_hdr.status = CTL_ERROR; 12389 ctl_done(io); 12390} 12391 12392/* 12393 * For HA operation. Handle commands that come in from the other 12394 * controller. 12395 */ 12396static void 12397ctl_handle_isc(union ctl_io *io) 12398{ 12399 int free_io; 12400 struct ctl_lun *lun; 12401 struct ctl_softc *ctl_softc; 12402 uint32_t targ_lun; 12403 12404 ctl_softc = control_softc; 12405 12406 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12407 lun = ctl_softc->ctl_luns[targ_lun]; 12408 12409 switch (io->io_hdr.msg_type) { 12410 case CTL_MSG_SERIALIZE: 12411 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12412 break; 12413 case CTL_MSG_R2R: { 12414 const struct ctl_cmd_entry *entry; 12415 12416 /* 12417 * This is only used in SER_ONLY mode. 12418 */ 12419 free_io = 0; 12420 entry = ctl_get_cmd_entry(&io->scsiio); 12421 mtx_lock(&lun->lun_lock); 12422 if (ctl_scsiio_lun_check(ctl_softc, lun, 12423 entry, (struct ctl_scsiio *)io) != 0) { 12424 mtx_unlock(&lun->lun_lock); 12425 ctl_done(io); 12426 break; 12427 } 12428 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12429 mtx_unlock(&lun->lun_lock); 12430 ctl_enqueue_rtr(io); 12431 break; 12432 } 12433 case CTL_MSG_FINISH_IO: 12434 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12435 free_io = 0; 12436 ctl_done(io); 12437 } else { 12438 free_io = 1; 12439 mtx_lock(&lun->lun_lock); 12440 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12441 ooa_links); 12442 ctl_check_blocked(lun); 12443 mtx_unlock(&lun->lun_lock); 12444 } 12445 break; 12446 case CTL_MSG_PERS_ACTION: 12447 ctl_hndl_per_res_out_on_other_sc( 12448 (union ctl_ha_msg *)&io->presio.pr_msg); 12449 free_io = 1; 12450 break; 12451 case CTL_MSG_BAD_JUJU: 12452 free_io = 0; 12453 ctl_done(io); 12454 break; 12455 case CTL_MSG_DATAMOVE: 12456 /* Only used in XFER mode */ 12457 free_io = 0; 12458 ctl_datamove_remote(io); 12459 break; 12460 case CTL_MSG_DATAMOVE_DONE: 12461 /* Only used in XFER mode */ 12462 free_io = 0; 12463 io->scsiio.be_move_done(io); 12464 break; 12465 default: 12466 free_io = 1; 12467 printf("%s: Invalid message type %d\n", 12468 __func__, io->io_hdr.msg_type); 12469 break; 12470 } 12471 if (free_io) 12472 ctl_free_io(io); 12473 12474} 12475 12476 12477/* 12478 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12479 * there is no match. 12480 */ 12481static ctl_lun_error_pattern 12482ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12483{ 12484 const struct ctl_cmd_entry *entry; 12485 ctl_lun_error_pattern filtered_pattern, pattern; 12486 12487 pattern = desc->error_pattern; 12488 12489 /* 12490 * XXX KDM we need more data passed into this function to match a 12491 * custom pattern, and we actually need to implement custom pattern 12492 * matching. 12493 */ 12494 if (pattern & CTL_LUN_PAT_CMD) 12495 return (CTL_LUN_PAT_CMD); 12496 12497 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12498 return (CTL_LUN_PAT_ANY); 12499 12500 entry = ctl_get_cmd_entry(ctsio); 12501 12502 filtered_pattern = entry->pattern & pattern; 12503 12504 /* 12505 * If the user requested specific flags in the pattern (e.g. 12506 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12507 * flags. 12508 * 12509 * If the user did not specify any flags, it doesn't matter whether 12510 * or not the command supports the flags. 12511 */ 12512 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12513 (pattern & ~CTL_LUN_PAT_MASK)) 12514 return (CTL_LUN_PAT_NONE); 12515 12516 /* 12517 * If the user asked for a range check, see if the requested LBA 12518 * range overlaps with this command's LBA range. 12519 */ 12520 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12521 uint64_t lba1; 12522 uint32_t len1; 12523 ctl_action action; 12524 int retval; 12525 12526 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12527 if (retval != 0) 12528 return (CTL_LUN_PAT_NONE); 12529 12530 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12531 desc->lba_range.len); 12532 /* 12533 * A "pass" means that the LBA ranges don't overlap, so 12534 * this doesn't match the user's range criteria. 12535 */ 12536 if (action == CTL_ACTION_PASS) 12537 return (CTL_LUN_PAT_NONE); 12538 } 12539 12540 return (filtered_pattern); 12541} 12542 12543static void 12544ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12545{ 12546 struct ctl_error_desc *desc, *desc2; 12547 12548 mtx_assert(&lun->lun_lock, MA_OWNED); 12549 12550 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12551 ctl_lun_error_pattern pattern; 12552 /* 12553 * Check to see whether this particular command matches 12554 * the pattern in the descriptor. 12555 */ 12556 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12557 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12558 continue; 12559 12560 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12561 case CTL_LUN_INJ_ABORTED: 12562 ctl_set_aborted(&io->scsiio); 12563 break; 12564 case CTL_LUN_INJ_MEDIUM_ERR: 12565 ctl_set_medium_error(&io->scsiio); 12566 break; 12567 case CTL_LUN_INJ_UA: 12568 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12569 * OCCURRED */ 12570 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12571 break; 12572 case CTL_LUN_INJ_CUSTOM: 12573 /* 12574 * We're assuming the user knows what he is doing. 12575 * Just copy the sense information without doing 12576 * checks. 12577 */ 12578 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12579 ctl_min(sizeof(desc->custom_sense), 12580 sizeof(io->scsiio.sense_data))); 12581 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12582 io->scsiio.sense_len = SSD_FULL_SIZE; 12583 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12584 break; 12585 case CTL_LUN_INJ_NONE: 12586 default: 12587 /* 12588 * If this is an error injection type we don't know 12589 * about, clear the continuous flag (if it is set) 12590 * so it will get deleted below. 12591 */ 12592 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12593 break; 12594 } 12595 /* 12596 * By default, each error injection action is a one-shot 12597 */ 12598 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12599 continue; 12600 12601 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12602 12603 free(desc, M_CTL); 12604 } 12605} 12606 12607#ifdef CTL_IO_DELAY 12608static void 12609ctl_datamove_timer_wakeup(void *arg) 12610{ 12611 union ctl_io *io; 12612 12613 io = (union ctl_io *)arg; 12614 12615 ctl_datamove(io); 12616} 12617#endif /* CTL_IO_DELAY */ 12618 12619void 12620ctl_datamove(union ctl_io *io) 12621{ 12622 void (*fe_datamove)(union ctl_io *io); 12623 12624 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12625 12626 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12627 12628#ifdef CTL_TIME_IO 12629 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12630 char str[256]; 12631 char path_str[64]; 12632 struct sbuf sb; 12633 12634 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12635 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12636 12637 sbuf_cat(&sb, path_str); 12638 switch (io->io_hdr.io_type) { 12639 case CTL_IO_SCSI: 12640 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12641 sbuf_printf(&sb, "\n"); 12642 sbuf_cat(&sb, path_str); 12643 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12644 io->scsiio.tag_num, io->scsiio.tag_type); 12645 break; 12646 case CTL_IO_TASK: 12647 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12648 "Tag Type: %d\n", io->taskio.task_action, 12649 io->taskio.tag_num, io->taskio.tag_type); 12650 break; 12651 default: 12652 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12653 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12654 break; 12655 } 12656 sbuf_cat(&sb, path_str); 12657 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12658 (intmax_t)time_uptime - io->io_hdr.start_time); 12659 sbuf_finish(&sb); 12660 printf("%s", sbuf_data(&sb)); 12661 } 12662#endif /* CTL_TIME_IO */ 12663 12664#ifdef CTL_IO_DELAY 12665 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12666 struct ctl_lun *lun; 12667 12668 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12669 12670 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12671 } else { 12672 struct ctl_lun *lun; 12673 12674 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12675 if ((lun != NULL) 12676 && (lun->delay_info.datamove_delay > 0)) { 12677 struct callout *callout; 12678 12679 callout = (struct callout *)&io->io_hdr.timer_bytes; 12680 callout_init(callout, /*mpsafe*/ 1); 12681 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12682 callout_reset(callout, 12683 lun->delay_info.datamove_delay * hz, 12684 ctl_datamove_timer_wakeup, io); 12685 if (lun->delay_info.datamove_type == 12686 CTL_DELAY_TYPE_ONESHOT) 12687 lun->delay_info.datamove_delay = 0; 12688 return; 12689 } 12690 } 12691#endif 12692 12693 /* 12694 * This command has been aborted. Set the port status, so we fail 12695 * the data move. 12696 */ 12697 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12698 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12699 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12700 io->io_hdr.nexus.targ_port, 12701 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12702 io->io_hdr.nexus.targ_lun); 12703 io->io_hdr.port_status = 31337; 12704 /* 12705 * Note that the backend, in this case, will get the 12706 * callback in its context. In other cases it may get 12707 * called in the frontend's interrupt thread context. 12708 */ 12709 io->scsiio.be_move_done(io); 12710 return; 12711 } 12712 12713 /* 12714 * If we're in XFER mode and this I/O is from the other shelf 12715 * controller, we need to send the DMA to the other side to 12716 * actually transfer the data to/from the host. In serialize only 12717 * mode the transfer happens below CTL and ctl_datamove() is only 12718 * called on the machine that originally received the I/O. 12719 */ 12720 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12721 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12722 union ctl_ha_msg msg; 12723 uint32_t sg_entries_sent; 12724 int do_sg_copy; 12725 int i; 12726 12727 memset(&msg, 0, sizeof(msg)); 12728 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12729 msg.hdr.original_sc = io->io_hdr.original_sc; 12730 msg.hdr.serializing_sc = io; 12731 msg.hdr.nexus = io->io_hdr.nexus; 12732 msg.dt.flags = io->io_hdr.flags; 12733 /* 12734 * We convert everything into a S/G list here. We can't 12735 * pass by reference, only by value between controllers. 12736 * So we can't pass a pointer to the S/G list, only as many 12737 * S/G entries as we can fit in here. If it's possible for 12738 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12739 * then we need to break this up into multiple transfers. 12740 */ 12741 if (io->scsiio.kern_sg_entries == 0) { 12742 msg.dt.kern_sg_entries = 1; 12743 /* 12744 * If this is in cached memory, flush the cache 12745 * before we send the DMA request to the other 12746 * controller. We want to do this in either the 12747 * read or the write case. The read case is 12748 * straightforward. In the write case, we want to 12749 * make sure nothing is in the local cache that 12750 * could overwrite the DMAed data. 12751 */ 12752 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12753 /* 12754 * XXX KDM use bus_dmamap_sync() here. 12755 */ 12756 } 12757 12758 /* 12759 * Convert to a physical address if this is a 12760 * virtual address. 12761 */ 12762 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12763 msg.dt.sg_list[0].addr = 12764 io->scsiio.kern_data_ptr; 12765 } else { 12766 /* 12767 * XXX KDM use busdma here! 12768 */ 12769#if 0 12770 msg.dt.sg_list[0].addr = (void *) 12771 vtophys(io->scsiio.kern_data_ptr); 12772#endif 12773 } 12774 12775 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12776 do_sg_copy = 0; 12777 } else { 12778 struct ctl_sg_entry *sgl; 12779 12780 do_sg_copy = 1; 12781 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12782 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12783 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12784 /* 12785 * XXX KDM use bus_dmamap_sync() here. 12786 */ 12787 } 12788 } 12789 12790 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12791 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12792 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12793 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12794 msg.dt.sg_sequence = 0; 12795 12796 /* 12797 * Loop until we've sent all of the S/G entries. On the 12798 * other end, we'll recompose these S/G entries into one 12799 * contiguous list before passing it to the 12800 */ 12801 for (sg_entries_sent = 0; sg_entries_sent < 12802 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12803 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12804 sizeof(msg.dt.sg_list[0])), 12805 msg.dt.kern_sg_entries - sg_entries_sent); 12806 12807 if (do_sg_copy != 0) { 12808 struct ctl_sg_entry *sgl; 12809 int j; 12810 12811 sgl = (struct ctl_sg_entry *) 12812 io->scsiio.kern_data_ptr; 12813 /* 12814 * If this is in cached memory, flush the cache 12815 * before we send the DMA request to the other 12816 * controller. We want to do this in either 12817 * the * read or the write case. The read 12818 * case is straightforward. In the write 12819 * case, we want to make sure nothing is 12820 * in the local cache that could overwrite 12821 * the DMAed data. 12822 */ 12823 12824 for (i = sg_entries_sent, j = 0; 12825 i < msg.dt.cur_sg_entries; i++, j++) { 12826 if ((io->io_hdr.flags & 12827 CTL_FLAG_NO_DATASYNC) == 0) { 12828 /* 12829 * XXX KDM use bus_dmamap_sync() 12830 */ 12831 } 12832 if ((io->io_hdr.flags & 12833 CTL_FLAG_BUS_ADDR) == 0) { 12834 /* 12835 * XXX KDM use busdma. 12836 */ 12837#if 0 12838 msg.dt.sg_list[j].addr =(void *) 12839 vtophys(sgl[i].addr); 12840#endif 12841 } else { 12842 msg.dt.sg_list[j].addr = 12843 sgl[i].addr; 12844 } 12845 msg.dt.sg_list[j].len = sgl[i].len; 12846 } 12847 } 12848 12849 sg_entries_sent += msg.dt.cur_sg_entries; 12850 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12851 msg.dt.sg_last = 1; 12852 else 12853 msg.dt.sg_last = 0; 12854 12855 /* 12856 * XXX KDM drop and reacquire the lock here? 12857 */ 12858 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12859 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12860 /* 12861 * XXX do something here. 12862 */ 12863 } 12864 12865 msg.dt.sent_sg_entries = sg_entries_sent; 12866 } 12867 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12868 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12869 ctl_failover_io(io, /*have_lock*/ 0); 12870 12871 } else { 12872 12873 /* 12874 * Lookup the fe_datamove() function for this particular 12875 * front end. 12876 */ 12877 fe_datamove = 12878 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12879 12880 fe_datamove(io); 12881 } 12882} 12883 12884static void 12885ctl_send_datamove_done(union ctl_io *io, int have_lock) 12886{ 12887 union ctl_ha_msg msg; 12888 int isc_status; 12889 12890 memset(&msg, 0, sizeof(msg)); 12891 12892 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12893 msg.hdr.original_sc = io; 12894 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12895 msg.hdr.nexus = io->io_hdr.nexus; 12896 msg.hdr.status = io->io_hdr.status; 12897 msg.scsi.tag_num = io->scsiio.tag_num; 12898 msg.scsi.tag_type = io->scsiio.tag_type; 12899 msg.scsi.scsi_status = io->scsiio.scsi_status; 12900 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12901 sizeof(io->scsiio.sense_data)); 12902 msg.scsi.sense_len = io->scsiio.sense_len; 12903 msg.scsi.sense_residual = io->scsiio.sense_residual; 12904 msg.scsi.fetd_status = io->io_hdr.port_status; 12905 msg.scsi.residual = io->scsiio.residual; 12906 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12907 12908 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12909 ctl_failover_io(io, /*have_lock*/ have_lock); 12910 return; 12911 } 12912 12913 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12914 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12915 /* XXX do something if this fails */ 12916 } 12917 12918} 12919 12920/* 12921 * The DMA to the remote side is done, now we need to tell the other side 12922 * we're done so it can continue with its data movement. 12923 */ 12924static void 12925ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12926{ 12927 union ctl_io *io; 12928 12929 io = rq->context; 12930 12931 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12932 printf("%s: ISC DMA write failed with error %d", __func__, 12933 rq->ret); 12934 ctl_set_internal_failure(&io->scsiio, 12935 /*sks_valid*/ 1, 12936 /*retry_count*/ rq->ret); 12937 } 12938 12939 ctl_dt_req_free(rq); 12940 12941 /* 12942 * In this case, we had to malloc the memory locally. Free it. 12943 */ 12944 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12945 int i; 12946 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12947 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12948 } 12949 /* 12950 * The data is in local and remote memory, so now we need to send 12951 * status (good or back) back to the other side. 12952 */ 12953 ctl_send_datamove_done(io, /*have_lock*/ 0); 12954} 12955 12956/* 12957 * We've moved the data from the host/controller into local memory. Now we 12958 * need to push it over to the remote controller's memory. 12959 */ 12960static int 12961ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12962{ 12963 int retval; 12964 12965 retval = 0; 12966 12967 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12968 ctl_datamove_remote_write_cb); 12969 12970 return (retval); 12971} 12972 12973static void 12974ctl_datamove_remote_write(union ctl_io *io) 12975{ 12976 int retval; 12977 void (*fe_datamove)(union ctl_io *io); 12978 12979 /* 12980 * - Get the data from the host/HBA into local memory. 12981 * - DMA memory from the local controller to the remote controller. 12982 * - Send status back to the remote controller. 12983 */ 12984 12985 retval = ctl_datamove_remote_sgl_setup(io); 12986 if (retval != 0) 12987 return; 12988 12989 /* Switch the pointer over so the FETD knows what to do */ 12990 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12991 12992 /* 12993 * Use a custom move done callback, since we need to send completion 12994 * back to the other controller, not to the backend on this side. 12995 */ 12996 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12997 12998 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12999 13000 fe_datamove(io); 13001 13002 return; 13003 13004} 13005 13006static int 13007ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13008{ 13009#if 0 13010 char str[256]; 13011 char path_str[64]; 13012 struct sbuf sb; 13013#endif 13014 13015 /* 13016 * In this case, we had to malloc the memory locally. Free it. 13017 */ 13018 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13019 int i; 13020 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13021 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13022 } 13023 13024#if 0 13025 scsi_path_string(io, path_str, sizeof(path_str)); 13026 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13027 sbuf_cat(&sb, path_str); 13028 scsi_command_string(&io->scsiio, NULL, &sb); 13029 sbuf_printf(&sb, "\n"); 13030 sbuf_cat(&sb, path_str); 13031 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13032 io->scsiio.tag_num, io->scsiio.tag_type); 13033 sbuf_cat(&sb, path_str); 13034 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13035 io->io_hdr.flags, io->io_hdr.status); 13036 sbuf_finish(&sb); 13037 printk("%s", sbuf_data(&sb)); 13038#endif 13039 13040 13041 /* 13042 * The read is done, now we need to send status (good or bad) back 13043 * to the other side. 13044 */ 13045 ctl_send_datamove_done(io, /*have_lock*/ 0); 13046 13047 return (0); 13048} 13049 13050static void 13051ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13052{ 13053 union ctl_io *io; 13054 void (*fe_datamove)(union ctl_io *io); 13055 13056 io = rq->context; 13057 13058 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13059 printf("%s: ISC DMA read failed with error %d", __func__, 13060 rq->ret); 13061 ctl_set_internal_failure(&io->scsiio, 13062 /*sks_valid*/ 1, 13063 /*retry_count*/ rq->ret); 13064 } 13065 13066 ctl_dt_req_free(rq); 13067 13068 /* Switch the pointer over so the FETD knows what to do */ 13069 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13070 13071 /* 13072 * Use a custom move done callback, since we need to send completion 13073 * back to the other controller, not to the backend on this side. 13074 */ 13075 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13076 13077 /* XXX KDM add checks like the ones in ctl_datamove? */ 13078 13079 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13080 13081 fe_datamove(io); 13082} 13083 13084static int 13085ctl_datamove_remote_sgl_setup(union ctl_io *io) 13086{ 13087 struct ctl_sg_entry *local_sglist, *remote_sglist; 13088 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13089 struct ctl_softc *softc; 13090 int retval; 13091 int i; 13092 13093 retval = 0; 13094 softc = control_softc; 13095 13096 local_sglist = io->io_hdr.local_sglist; 13097 local_dma_sglist = io->io_hdr.local_dma_sglist; 13098 remote_sglist = io->io_hdr.remote_sglist; 13099 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13100 13101 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13102 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13103 local_sglist[i].len = remote_sglist[i].len; 13104 13105 /* 13106 * XXX Detect the situation where the RS-level I/O 13107 * redirector on the other side has already read the 13108 * data off of the AOR RS on this side, and 13109 * transferred it to remote (mirror) memory on the 13110 * other side. Since we already have the data in 13111 * memory here, we just need to use it. 13112 * 13113 * XXX KDM this can probably be removed once we 13114 * get the cache device code in and take the 13115 * current AOR implementation out. 13116 */ 13117#ifdef NEEDTOPORT 13118 if ((remote_sglist[i].addr >= 13119 (void *)vtophys(softc->mirr->addr)) 13120 && (remote_sglist[i].addr < 13121 ((void *)vtophys(softc->mirr->addr) + 13122 CacheMirrorOffset))) { 13123 local_sglist[i].addr = remote_sglist[i].addr - 13124 CacheMirrorOffset; 13125 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13126 CTL_FLAG_DATA_IN) 13127 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13128 } else { 13129 local_sglist[i].addr = remote_sglist[i].addr + 13130 CacheMirrorOffset; 13131 } 13132#endif 13133#if 0 13134 printf("%s: local %p, remote %p, len %d\n", 13135 __func__, local_sglist[i].addr, 13136 remote_sglist[i].addr, local_sglist[i].len); 13137#endif 13138 } 13139 } else { 13140 uint32_t len_to_go; 13141 13142 /* 13143 * In this case, we don't have automatically allocated 13144 * memory for this I/O on this controller. This typically 13145 * happens with internal CTL I/O -- e.g. inquiry, mode 13146 * sense, etc. Anything coming from RAIDCore will have 13147 * a mirror area available. 13148 */ 13149 len_to_go = io->scsiio.kern_data_len; 13150 13151 /* 13152 * Clear the no datasync flag, we have to use malloced 13153 * buffers. 13154 */ 13155 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13156 13157 /* 13158 * The difficult thing here is that the size of the various 13159 * S/G segments may be different than the size from the 13160 * remote controller. That'll make it harder when DMAing 13161 * the data back to the other side. 13162 */ 13163 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13164 sizeof(io->io_hdr.remote_sglist[0])) && 13165 (len_to_go > 0); i++) { 13166 local_sglist[i].len = ctl_min(len_to_go, 131072); 13167 CTL_SIZE_8B(local_dma_sglist[i].len, 13168 local_sglist[i].len); 13169 local_sglist[i].addr = 13170 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13171 13172 local_dma_sglist[i].addr = local_sglist[i].addr; 13173 13174 if (local_sglist[i].addr == NULL) { 13175 int j; 13176 13177 printf("malloc failed for %zd bytes!", 13178 local_dma_sglist[i].len); 13179 for (j = 0; j < i; j++) { 13180 free(local_sglist[j].addr, M_CTL); 13181 } 13182 ctl_set_internal_failure(&io->scsiio, 13183 /*sks_valid*/ 1, 13184 /*retry_count*/ 4857); 13185 retval = 1; 13186 goto bailout_error; 13187 13188 } 13189 /* XXX KDM do we need a sync here? */ 13190 13191 len_to_go -= local_sglist[i].len; 13192 } 13193 /* 13194 * Reset the number of S/G entries accordingly. The 13195 * original number of S/G entries is available in 13196 * rem_sg_entries. 13197 */ 13198 io->scsiio.kern_sg_entries = i; 13199 13200#if 0 13201 printf("%s: kern_sg_entries = %d\n", __func__, 13202 io->scsiio.kern_sg_entries); 13203 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13204 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13205 local_sglist[i].addr, local_sglist[i].len, 13206 local_dma_sglist[i].len); 13207#endif 13208 } 13209 13210 13211 return (retval); 13212 13213bailout_error: 13214 13215 ctl_send_datamove_done(io, /*have_lock*/ 0); 13216 13217 return (retval); 13218} 13219 13220static int 13221ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13222 ctl_ha_dt_cb callback) 13223{ 13224 struct ctl_ha_dt_req *rq; 13225 struct ctl_sg_entry *remote_sglist, *local_sglist; 13226 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13227 uint32_t local_used, remote_used, total_used; 13228 int retval; 13229 int i, j; 13230 13231 retval = 0; 13232 13233 rq = ctl_dt_req_alloc(); 13234 13235 /* 13236 * If we failed to allocate the request, and if the DMA didn't fail 13237 * anyway, set busy status. This is just a resource allocation 13238 * failure. 13239 */ 13240 if ((rq == NULL) 13241 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13242 ctl_set_busy(&io->scsiio); 13243 13244 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13245 13246 if (rq != NULL) 13247 ctl_dt_req_free(rq); 13248 13249 /* 13250 * The data move failed. We need to return status back 13251 * to the other controller. No point in trying to DMA 13252 * data to the remote controller. 13253 */ 13254 13255 ctl_send_datamove_done(io, /*have_lock*/ 0); 13256 13257 retval = 1; 13258 13259 goto bailout; 13260 } 13261 13262 local_sglist = io->io_hdr.local_sglist; 13263 local_dma_sglist = io->io_hdr.local_dma_sglist; 13264 remote_sglist = io->io_hdr.remote_sglist; 13265 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13266 local_used = 0; 13267 remote_used = 0; 13268 total_used = 0; 13269 13270 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13271 rq->ret = CTL_HA_STATUS_SUCCESS; 13272 rq->context = io; 13273 callback(rq); 13274 goto bailout; 13275 } 13276 13277 /* 13278 * Pull/push the data over the wire from/to the other controller. 13279 * This takes into account the possibility that the local and 13280 * remote sglists may not be identical in terms of the size of 13281 * the elements and the number of elements. 13282 * 13283 * One fundamental assumption here is that the length allocated for 13284 * both the local and remote sglists is identical. Otherwise, we've 13285 * essentially got a coding error of some sort. 13286 */ 13287 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13288 int isc_ret; 13289 uint32_t cur_len, dma_length; 13290 uint8_t *tmp_ptr; 13291 13292 rq->id = CTL_HA_DATA_CTL; 13293 rq->command = command; 13294 rq->context = io; 13295 13296 /* 13297 * Both pointers should be aligned. But it is possible 13298 * that the allocation length is not. They should both 13299 * also have enough slack left over at the end, though, 13300 * to round up to the next 8 byte boundary. 13301 */ 13302 cur_len = ctl_min(local_sglist[i].len - local_used, 13303 remote_sglist[j].len - remote_used); 13304 13305 /* 13306 * In this case, we have a size issue and need to decrease 13307 * the size, except in the case where we actually have less 13308 * than 8 bytes left. In that case, we need to increase 13309 * the DMA length to get the last bit. 13310 */ 13311 if ((cur_len & 0x7) != 0) { 13312 if (cur_len > 0x7) { 13313 cur_len = cur_len - (cur_len & 0x7); 13314 dma_length = cur_len; 13315 } else { 13316 CTL_SIZE_8B(dma_length, cur_len); 13317 } 13318 13319 } else 13320 dma_length = cur_len; 13321 13322 /* 13323 * If we had to allocate memory for this I/O, instead of using 13324 * the non-cached mirror memory, we'll need to flush the cache 13325 * before trying to DMA to the other controller. 13326 * 13327 * We could end up doing this multiple times for the same 13328 * segment if we have a larger local segment than remote 13329 * segment. That shouldn't be an issue. 13330 */ 13331 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13332 /* 13333 * XXX KDM use bus_dmamap_sync() here. 13334 */ 13335 } 13336 13337 rq->size = dma_length; 13338 13339 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13340 tmp_ptr += local_used; 13341 13342 /* Use physical addresses when talking to ISC hardware */ 13343 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13344 /* XXX KDM use busdma */ 13345#if 0 13346 rq->local = vtophys(tmp_ptr); 13347#endif 13348 } else 13349 rq->local = tmp_ptr; 13350 13351 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13352 tmp_ptr += remote_used; 13353 rq->remote = tmp_ptr; 13354 13355 rq->callback = NULL; 13356 13357 local_used += cur_len; 13358 if (local_used >= local_sglist[i].len) { 13359 i++; 13360 local_used = 0; 13361 } 13362 13363 remote_used += cur_len; 13364 if (remote_used >= remote_sglist[j].len) { 13365 j++; 13366 remote_used = 0; 13367 } 13368 total_used += cur_len; 13369 13370 if (total_used >= io->scsiio.kern_data_len) 13371 rq->callback = callback; 13372 13373 if ((rq->size & 0x7) != 0) { 13374 printf("%s: warning: size %d is not on 8b boundary\n", 13375 __func__, rq->size); 13376 } 13377 if (((uintptr_t)rq->local & 0x7) != 0) { 13378 printf("%s: warning: local %p not on 8b boundary\n", 13379 __func__, rq->local); 13380 } 13381 if (((uintptr_t)rq->remote & 0x7) != 0) { 13382 printf("%s: warning: remote %p not on 8b boundary\n", 13383 __func__, rq->local); 13384 } 13385#if 0 13386 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13387 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13388 rq->local, rq->remote, rq->size); 13389#endif 13390 13391 isc_ret = ctl_dt_single(rq); 13392 if (isc_ret == CTL_HA_STATUS_WAIT) 13393 continue; 13394 13395 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13396 rq->ret = CTL_HA_STATUS_SUCCESS; 13397 } else { 13398 rq->ret = isc_ret; 13399 } 13400 callback(rq); 13401 goto bailout; 13402 } 13403 13404bailout: 13405 return (retval); 13406 13407} 13408 13409static void 13410ctl_datamove_remote_read(union ctl_io *io) 13411{ 13412 int retval; 13413 int i; 13414 13415 /* 13416 * This will send an error to the other controller in the case of a 13417 * failure. 13418 */ 13419 retval = ctl_datamove_remote_sgl_setup(io); 13420 if (retval != 0) 13421 return; 13422 13423 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13424 ctl_datamove_remote_read_cb); 13425 if ((retval != 0) 13426 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13427 /* 13428 * Make sure we free memory if there was an error.. The 13429 * ctl_datamove_remote_xfer() function will send the 13430 * datamove done message, or call the callback with an 13431 * error if there is a problem. 13432 */ 13433 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13434 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13435 } 13436 13437 return; 13438} 13439 13440/* 13441 * Process a datamove request from the other controller. This is used for 13442 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13443 * first. Once that is complete, the data gets DMAed into the remote 13444 * controller's memory. For reads, we DMA from the remote controller's 13445 * memory into our memory first, and then move it out to the FETD. 13446 */ 13447static void 13448ctl_datamove_remote(union ctl_io *io) 13449{ 13450 struct ctl_softc *softc; 13451 13452 softc = control_softc; 13453 13454 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13455 13456 /* 13457 * Note that we look for an aborted I/O here, but don't do some of 13458 * the other checks that ctl_datamove() normally does. 13459 * We don't need to run the datamove delay code, since that should 13460 * have been done if need be on the other controller. 13461 */ 13462 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13463 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13464 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13465 io->io_hdr.nexus.targ_port, 13466 io->io_hdr.nexus.targ_target.id, 13467 io->io_hdr.nexus.targ_lun); 13468 io->io_hdr.port_status = 31338; 13469 ctl_send_datamove_done(io, /*have_lock*/ 0); 13470 return; 13471 } 13472 13473 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13474 ctl_datamove_remote_write(io); 13475 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13476 ctl_datamove_remote_read(io); 13477 } else { 13478 union ctl_ha_msg msg; 13479 struct scsi_sense_data *sense; 13480 uint8_t sks[3]; 13481 int retry_count; 13482 13483 memset(&msg, 0, sizeof(msg)); 13484 13485 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13486 msg.hdr.status = CTL_SCSI_ERROR; 13487 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13488 13489 retry_count = 4243; 13490 13491 sense = &msg.scsi.sense_data; 13492 sks[0] = SSD_SCS_VALID; 13493 sks[1] = (retry_count >> 8) & 0xff; 13494 sks[2] = retry_count & 0xff; 13495 13496 /* "Internal target failure" */ 13497 scsi_set_sense_data(sense, 13498 /*sense_format*/ SSD_TYPE_NONE, 13499 /*current_error*/ 1, 13500 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13501 /*asc*/ 0x44, 13502 /*ascq*/ 0x00, 13503 /*type*/ SSD_ELEM_SKS, 13504 /*size*/ sizeof(sks), 13505 /*data*/ sks, 13506 SSD_ELEM_NONE); 13507 13508 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13509 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13510 ctl_failover_io(io, /*have_lock*/ 1); 13511 return; 13512 } 13513 13514 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13515 CTL_HA_STATUS_SUCCESS) { 13516 /* XXX KDM what to do if this fails? */ 13517 } 13518 return; 13519 } 13520 13521} 13522 13523static int 13524ctl_process_done(union ctl_io *io) 13525{ 13526 struct ctl_lun *lun; 13527 struct ctl_softc *ctl_softc; 13528 void (*fe_done)(union ctl_io *io); 13529 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13530 13531 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13532 13533 fe_done = 13534 control_softc->ctl_ports[targ_port]->fe_done; 13535 13536#ifdef CTL_TIME_IO 13537 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13538 char str[256]; 13539 char path_str[64]; 13540 struct sbuf sb; 13541 13542 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13543 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13544 13545 sbuf_cat(&sb, path_str); 13546 switch (io->io_hdr.io_type) { 13547 case CTL_IO_SCSI: 13548 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13549 sbuf_printf(&sb, "\n"); 13550 sbuf_cat(&sb, path_str); 13551 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13552 io->scsiio.tag_num, io->scsiio.tag_type); 13553 break; 13554 case CTL_IO_TASK: 13555 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13556 "Tag Type: %d\n", io->taskio.task_action, 13557 io->taskio.tag_num, io->taskio.tag_type); 13558 break; 13559 default: 13560 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13561 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13562 break; 13563 } 13564 sbuf_cat(&sb, path_str); 13565 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13566 (intmax_t)time_uptime - io->io_hdr.start_time); 13567 sbuf_finish(&sb); 13568 printf("%s", sbuf_data(&sb)); 13569 } 13570#endif /* CTL_TIME_IO */ 13571 13572 switch (io->io_hdr.io_type) { 13573 case CTL_IO_SCSI: 13574 break; 13575 case CTL_IO_TASK: 13576 if (bootverbose || verbose > 0) 13577 ctl_io_error_print(io, NULL); 13578 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13579 ctl_free_io(io); 13580 else 13581 fe_done(io); 13582 return (CTL_RETVAL_COMPLETE); 13583 break; 13584 default: 13585 printf("ctl_process_done: invalid io type %d\n", 13586 io->io_hdr.io_type); 13587 panic("ctl_process_done: invalid io type %d\n", 13588 io->io_hdr.io_type); 13589 break; /* NOTREACHED */ 13590 } 13591 13592 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13593 if (lun == NULL) { 13594 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13595 io->io_hdr.nexus.targ_mapped_lun)); 13596 fe_done(io); 13597 goto bailout; 13598 } 13599 ctl_softc = lun->ctl_softc; 13600 13601 mtx_lock(&lun->lun_lock); 13602 13603 /* 13604 * Check to see if we have any errors to inject here. We only 13605 * inject errors for commands that don't already have errors set. 13606 */ 13607 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13608 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13609 ctl_inject_error(lun, io); 13610 13611 /* 13612 * XXX KDM how do we treat commands that aren't completed 13613 * successfully? 13614 * 13615 * XXX KDM should we also track I/O latency? 13616 */ 13617 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13618 io->io_hdr.io_type == CTL_IO_SCSI) { 13619#ifdef CTL_TIME_IO 13620 struct bintime cur_bt; 13621#endif 13622 int type; 13623 13624 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13625 CTL_FLAG_DATA_IN) 13626 type = CTL_STATS_READ; 13627 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13628 CTL_FLAG_DATA_OUT) 13629 type = CTL_STATS_WRITE; 13630 else 13631 type = CTL_STATS_NO_IO; 13632 13633 lun->stats.ports[targ_port].bytes[type] += 13634 io->scsiio.kern_total_len; 13635 lun->stats.ports[targ_port].operations[type]++; 13636#ifdef CTL_TIME_IO 13637 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13638 &io->io_hdr.dma_bt); 13639 lun->stats.ports[targ_port].num_dmas[type] += 13640 io->io_hdr.num_dmas; 13641 getbintime(&cur_bt); 13642 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13643 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13644#endif 13645 } 13646 13647 /* 13648 * Remove this from the OOA queue. 13649 */ 13650 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13651 13652 /* 13653 * Run through the blocked queue on this LUN and see if anything 13654 * has become unblocked, now that this transaction is done. 13655 */ 13656 ctl_check_blocked(lun); 13657 13658 /* 13659 * If the LUN has been invalidated, free it if there is nothing 13660 * left on its OOA queue. 13661 */ 13662 if ((lun->flags & CTL_LUN_INVALID) 13663 && TAILQ_EMPTY(&lun->ooa_queue)) { 13664 mtx_unlock(&lun->lun_lock); 13665 mtx_lock(&ctl_softc->ctl_lock); 13666 ctl_free_lun(lun); 13667 mtx_unlock(&ctl_softc->ctl_lock); 13668 } else 13669 mtx_unlock(&lun->lun_lock); 13670 13671 /* 13672 * If this command has been aborted, make sure we set the status 13673 * properly. The FETD is responsible for freeing the I/O and doing 13674 * whatever it needs to do to clean up its state. 13675 */ 13676 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13677 ctl_set_task_aborted(&io->scsiio); 13678 13679 /* 13680 * We print out status for every task management command. For SCSI 13681 * commands, we filter out any unit attention errors; they happen 13682 * on every boot, and would clutter up the log. Note: task 13683 * management commands aren't printed here, they are printed above, 13684 * since they should never even make it down here. 13685 */ 13686 switch (io->io_hdr.io_type) { 13687 case CTL_IO_SCSI: { 13688 int error_code, sense_key, asc, ascq; 13689 13690 sense_key = 0; 13691 13692 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13693 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13694 /* 13695 * Since this is just for printing, no need to 13696 * show errors here. 13697 */ 13698 scsi_extract_sense_len(&io->scsiio.sense_data, 13699 io->scsiio.sense_len, 13700 &error_code, 13701 &sense_key, 13702 &asc, 13703 &ascq, 13704 /*show_errors*/ 0); 13705 } 13706 13707 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13708 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13709 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13710 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13711 13712 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13713 ctl_softc->skipped_prints++; 13714 } else { 13715 uint32_t skipped_prints; 13716 13717 skipped_prints = ctl_softc->skipped_prints; 13718 13719 ctl_softc->skipped_prints = 0; 13720 ctl_softc->last_print_jiffies = time_uptime; 13721 13722 if (skipped_prints > 0) { 13723#ifdef NEEDTOPORT 13724 csevent_log(CSC_CTL | CSC_SHELF_SW | 13725 CTL_ERROR_REPORT, 13726 csevent_LogType_Trace, 13727 csevent_Severity_Information, 13728 csevent_AlertLevel_Green, 13729 csevent_FRU_Firmware, 13730 csevent_FRU_Unknown, 13731 "High CTL error volume, %d prints " 13732 "skipped", skipped_prints); 13733#endif 13734 } 13735 if (bootverbose || verbose > 0) 13736 ctl_io_error_print(io, NULL); 13737 } 13738 } 13739 break; 13740 } 13741 case CTL_IO_TASK: 13742 if (bootverbose || verbose > 0) 13743 ctl_io_error_print(io, NULL); 13744 break; 13745 default: 13746 break; 13747 } 13748 13749 /* 13750 * Tell the FETD or the other shelf controller we're done with this 13751 * command. Note that only SCSI commands get to this point. Task 13752 * management commands are completed above. 13753 * 13754 * We only send status to the other controller if we're in XFER 13755 * mode. In SER_ONLY mode, the I/O is done on the controller that 13756 * received the I/O (from CTL's perspective), and so the status is 13757 * generated there. 13758 * 13759 * XXX KDM if we hold the lock here, we could cause a deadlock 13760 * if the frontend comes back in in this context to queue 13761 * something. 13762 */ 13763 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13764 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13765 union ctl_ha_msg msg; 13766 13767 memset(&msg, 0, sizeof(msg)); 13768 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13769 msg.hdr.original_sc = io->io_hdr.original_sc; 13770 msg.hdr.nexus = io->io_hdr.nexus; 13771 msg.hdr.status = io->io_hdr.status; 13772 msg.scsi.scsi_status = io->scsiio.scsi_status; 13773 msg.scsi.tag_num = io->scsiio.tag_num; 13774 msg.scsi.tag_type = io->scsiio.tag_type; 13775 msg.scsi.sense_len = io->scsiio.sense_len; 13776 msg.scsi.sense_residual = io->scsiio.sense_residual; 13777 msg.scsi.residual = io->scsiio.residual; 13778 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13779 sizeof(io->scsiio.sense_data)); 13780 /* 13781 * We copy this whether or not this is an I/O-related 13782 * command. Otherwise, we'd have to go and check to see 13783 * whether it's a read/write command, and it really isn't 13784 * worth it. 13785 */ 13786 memcpy(&msg.scsi.lbalen, 13787 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13788 sizeof(msg.scsi.lbalen)); 13789 13790 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13791 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13792 /* XXX do something here */ 13793 } 13794 13795 ctl_free_io(io); 13796 } else 13797 fe_done(io); 13798 13799bailout: 13800 13801 return (CTL_RETVAL_COMPLETE); 13802} 13803 13804#ifdef CTL_WITH_CA 13805/* 13806 * Front end should call this if it doesn't do autosense. When the request 13807 * sense comes back in from the initiator, we'll dequeue this and send it. 13808 */ 13809int 13810ctl_queue_sense(union ctl_io *io) 13811{ 13812 struct ctl_lun *lun; 13813 struct ctl_softc *ctl_softc; 13814 uint32_t initidx, targ_lun; 13815 13816 ctl_softc = control_softc; 13817 13818 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13819 13820 /* 13821 * LUN lookup will likely move to the ctl_work_thread() once we 13822 * have our new queueing infrastructure (that doesn't put things on 13823 * a per-LUN queue initially). That is so that we can handle 13824 * things like an INQUIRY to a LUN that we don't have enabled. We 13825 * can't deal with that right now. 13826 */ 13827 mtx_lock(&ctl_softc->ctl_lock); 13828 13829 /* 13830 * If we don't have a LUN for this, just toss the sense 13831 * information. 13832 */ 13833 targ_lun = io->io_hdr.nexus.targ_lun; 13834 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13835 if ((targ_lun < CTL_MAX_LUNS) 13836 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13837 lun = ctl_softc->ctl_luns[targ_lun]; 13838 else 13839 goto bailout; 13840 13841 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13842 13843 mtx_lock(&lun->lun_lock); 13844 /* 13845 * Already have CA set for this LUN...toss the sense information. 13846 */ 13847 if (ctl_is_set(lun->have_ca, initidx)) { 13848 mtx_unlock(&lun->lun_lock); 13849 goto bailout; 13850 } 13851 13852 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13853 ctl_min(sizeof(lun->pending_sense[initidx]), 13854 sizeof(io->scsiio.sense_data))); 13855 ctl_set_mask(lun->have_ca, initidx); 13856 mtx_unlock(&lun->lun_lock); 13857 13858bailout: 13859 mtx_unlock(&ctl_softc->ctl_lock); 13860 13861 ctl_free_io(io); 13862 13863 return (CTL_RETVAL_COMPLETE); 13864} 13865#endif 13866 13867/* 13868 * Primary command inlet from frontend ports. All SCSI and task I/O 13869 * requests must go through this function. 13870 */ 13871int 13872ctl_queue(union ctl_io *io) 13873{ 13874 struct ctl_softc *ctl_softc; 13875 13876 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13877 13878 ctl_softc = control_softc; 13879 13880#ifdef CTL_TIME_IO 13881 io->io_hdr.start_time = time_uptime; 13882 getbintime(&io->io_hdr.start_bt); 13883#endif /* CTL_TIME_IO */ 13884 13885 /* Map FE-specific LUN ID into global one. */ 13886 io->io_hdr.nexus.targ_mapped_lun = 13887 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13888 13889 switch (io->io_hdr.io_type) { 13890 case CTL_IO_SCSI: 13891 case CTL_IO_TASK: 13892 ctl_enqueue_incoming(io); 13893 break; 13894 default: 13895 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13896 return (EINVAL); 13897 } 13898 13899 return (CTL_RETVAL_COMPLETE); 13900} 13901 13902#ifdef CTL_IO_DELAY 13903static void 13904ctl_done_timer_wakeup(void *arg) 13905{ 13906 union ctl_io *io; 13907 13908 io = (union ctl_io *)arg; 13909 ctl_done(io); 13910} 13911#endif /* CTL_IO_DELAY */ 13912 13913void 13914ctl_done(union ctl_io *io) 13915{ 13916 struct ctl_softc *ctl_softc; 13917 13918 ctl_softc = control_softc; 13919 13920 /* 13921 * Enable this to catch duplicate completion issues. 13922 */ 13923#if 0 13924 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13925 printf("%s: type %d msg %d cdb %x iptl: " 13926 "%d:%d:%d:%d tag 0x%04x " 13927 "flag %#x status %x\n", 13928 __func__, 13929 io->io_hdr.io_type, 13930 io->io_hdr.msg_type, 13931 io->scsiio.cdb[0], 13932 io->io_hdr.nexus.initid.id, 13933 io->io_hdr.nexus.targ_port, 13934 io->io_hdr.nexus.targ_target.id, 13935 io->io_hdr.nexus.targ_lun, 13936 (io->io_hdr.io_type == 13937 CTL_IO_TASK) ? 13938 io->taskio.tag_num : 13939 io->scsiio.tag_num, 13940 io->io_hdr.flags, 13941 io->io_hdr.status); 13942 } else 13943 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13944#endif 13945 13946 /* 13947 * This is an internal copy of an I/O, and should not go through 13948 * the normal done processing logic. 13949 */ 13950 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13951 return; 13952 13953 /* 13954 * We need to send a msg to the serializing shelf to finish the IO 13955 * as well. We don't send a finish message to the other shelf if 13956 * this is a task management command. Task management commands 13957 * aren't serialized in the OOA queue, but rather just executed on 13958 * both shelf controllers for commands that originated on that 13959 * controller. 13960 */ 13961 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13962 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13963 union ctl_ha_msg msg_io; 13964 13965 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13966 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13967 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13968 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13969 } 13970 /* continue on to finish IO */ 13971 } 13972#ifdef CTL_IO_DELAY 13973 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13974 struct ctl_lun *lun; 13975 13976 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13977 13978 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13979 } else { 13980 struct ctl_lun *lun; 13981 13982 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13983 13984 if ((lun != NULL) 13985 && (lun->delay_info.done_delay > 0)) { 13986 struct callout *callout; 13987 13988 callout = (struct callout *)&io->io_hdr.timer_bytes; 13989 callout_init(callout, /*mpsafe*/ 1); 13990 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13991 callout_reset(callout, 13992 lun->delay_info.done_delay * hz, 13993 ctl_done_timer_wakeup, io); 13994 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13995 lun->delay_info.done_delay = 0; 13996 return; 13997 } 13998 } 13999#endif /* CTL_IO_DELAY */ 14000 14001 ctl_enqueue_done(io); 14002} 14003 14004int 14005ctl_isc(struct ctl_scsiio *ctsio) 14006{ 14007 struct ctl_lun *lun; 14008 int retval; 14009 14010 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14011 14012 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14013 14014 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14015 14016 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14017 14018 return (retval); 14019} 14020 14021 14022static void 14023ctl_work_thread(void *arg) 14024{ 14025 struct ctl_thread *thr = (struct ctl_thread *)arg; 14026 struct ctl_softc *softc = thr->ctl_softc; 14027 union ctl_io *io; 14028 int retval; 14029 14030 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14031 14032 for (;;) { 14033 retval = 0; 14034 14035 /* 14036 * We handle the queues in this order: 14037 * - ISC 14038 * - done queue (to free up resources, unblock other commands) 14039 * - RtR queue 14040 * - incoming queue 14041 * 14042 * If those queues are empty, we break out of the loop and 14043 * go to sleep. 14044 */ 14045 mtx_lock(&thr->queue_lock); 14046 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14047 if (io != NULL) { 14048 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14049 mtx_unlock(&thr->queue_lock); 14050 ctl_handle_isc(io); 14051 continue; 14052 } 14053 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14054 if (io != NULL) { 14055 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14056 /* clear any blocked commands, call fe_done */ 14057 mtx_unlock(&thr->queue_lock); 14058 retval = ctl_process_done(io); 14059 continue; 14060 } 14061 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14062 if (io != NULL) { 14063 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14064 mtx_unlock(&thr->queue_lock); 14065 if (io->io_hdr.io_type == CTL_IO_TASK) 14066 ctl_run_task(io); 14067 else 14068 ctl_scsiio_precheck(softc, &io->scsiio); 14069 continue; 14070 } 14071 if (!ctl_pause_rtr) { 14072 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14073 if (io != NULL) { 14074 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14075 mtx_unlock(&thr->queue_lock); 14076 retval = ctl_scsiio(&io->scsiio); 14077 if (retval != CTL_RETVAL_COMPLETE) 14078 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14079 continue; 14080 } 14081 } 14082 14083 /* Sleep until we have something to do. */ 14084 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14085 } 14086} 14087 14088static void 14089ctl_lun_thread(void *arg) 14090{ 14091 struct ctl_softc *softc = (struct ctl_softc *)arg; 14092 struct ctl_be_lun *be_lun; 14093 int retval; 14094 14095 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14096 14097 for (;;) { 14098 retval = 0; 14099 mtx_lock(&softc->ctl_lock); 14100 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14101 if (be_lun != NULL) { 14102 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14103 mtx_unlock(&softc->ctl_lock); 14104 ctl_create_lun(be_lun); 14105 continue; 14106 } 14107 14108 /* Sleep until we have something to do. */ 14109 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14110 PDROP | PRIBIO, "-", 0); 14111 } 14112} 14113 14114static void 14115ctl_enqueue_incoming(union ctl_io *io) 14116{ 14117 struct ctl_softc *softc = control_softc; 14118 struct ctl_thread *thr; 14119 u_int idx; 14120 14121 idx = (io->io_hdr.nexus.targ_port * 127 + 14122 io->io_hdr.nexus.initid.id) % worker_threads; 14123 thr = &softc->threads[idx]; 14124 mtx_lock(&thr->queue_lock); 14125 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14126 mtx_unlock(&thr->queue_lock); 14127 wakeup(thr); 14128} 14129 14130static void 14131ctl_enqueue_rtr(union ctl_io *io) 14132{ 14133 struct ctl_softc *softc = control_softc; 14134 struct ctl_thread *thr; 14135 14136 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14137 mtx_lock(&thr->queue_lock); 14138 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14139 mtx_unlock(&thr->queue_lock); 14140 wakeup(thr); 14141} 14142 14143static void 14144ctl_enqueue_done(union ctl_io *io) 14145{ 14146 struct ctl_softc *softc = control_softc; 14147 struct ctl_thread *thr; 14148 14149 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14150 mtx_lock(&thr->queue_lock); 14151 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14152 mtx_unlock(&thr->queue_lock); 14153 wakeup(thr); 14154} 14155 14156static void 14157ctl_enqueue_isc(union ctl_io *io) 14158{ 14159 struct ctl_softc *softc = control_softc; 14160 struct ctl_thread *thr; 14161 14162 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14163 mtx_lock(&thr->queue_lock); 14164 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14165 mtx_unlock(&thr->queue_lock); 14166 wakeup(thr); 14167} 14168 14169/* Initialization and failover */ 14170 14171void 14172ctl_init_isc_msg(void) 14173{ 14174 printf("CTL: Still calling this thing\n"); 14175} 14176 14177/* 14178 * Init component 14179 * Initializes component into configuration defined by bootMode 14180 * (see hasc-sv.c) 14181 * returns hasc_Status: 14182 * OK 14183 * ERROR - fatal error 14184 */ 14185static ctl_ha_comp_status 14186ctl_isc_init(struct ctl_ha_component *c) 14187{ 14188 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14189 14190 c->status = ret; 14191 return ret; 14192} 14193 14194/* Start component 14195 * Starts component in state requested. If component starts successfully, 14196 * it must set its own state to the requestrd state 14197 * When requested state is HASC_STATE_HA, the component may refine it 14198 * by adding _SLAVE or _MASTER flags. 14199 * Currently allowed state transitions are: 14200 * UNKNOWN->HA - initial startup 14201 * UNKNOWN->SINGLE - initial startup when no parter detected 14202 * HA->SINGLE - failover 14203 * returns ctl_ha_comp_status: 14204 * OK - component successfully started in requested state 14205 * FAILED - could not start the requested state, failover may 14206 * be possible 14207 * ERROR - fatal error detected, no future startup possible 14208 */ 14209static ctl_ha_comp_status 14210ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14211{ 14212 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14213 14214 printf("%s: go\n", __func__); 14215 14216 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14217 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14218 ctl_is_single = 0; 14219 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14220 != CTL_HA_STATUS_SUCCESS) { 14221 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14222 ret = CTL_HA_COMP_STATUS_ERROR; 14223 } 14224 } else if (CTL_HA_STATE_IS_HA(c->state) 14225 && CTL_HA_STATE_IS_SINGLE(state)){ 14226 // HA->SINGLE transition 14227 ctl_failover(); 14228 ctl_is_single = 1; 14229 } else { 14230 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14231 c->state, state); 14232 ret = CTL_HA_COMP_STATUS_ERROR; 14233 } 14234 if (CTL_HA_STATE_IS_SINGLE(state)) 14235 ctl_is_single = 1; 14236 14237 c->state = state; 14238 c->status = ret; 14239 return ret; 14240} 14241 14242/* 14243 * Quiesce component 14244 * The component must clear any error conditions (set status to OK) and 14245 * prepare itself to another Start call 14246 * returns ctl_ha_comp_status: 14247 * OK 14248 * ERROR 14249 */ 14250static ctl_ha_comp_status 14251ctl_isc_quiesce(struct ctl_ha_component *c) 14252{ 14253 int ret = CTL_HA_COMP_STATUS_OK; 14254 14255 ctl_pause_rtr = 1; 14256 c->status = ret; 14257 return ret; 14258} 14259 14260struct ctl_ha_component ctl_ha_component_ctlisc = 14261{ 14262 .name = "CTL ISC", 14263 .state = CTL_HA_STATE_UNKNOWN, 14264 .init = ctl_isc_init, 14265 .start = ctl_isc_start, 14266 .quiesce = ctl_isc_quiesce 14267}; 14268 14269/* 14270 * vim: ts=8 14271 */ 14272