ctl.c revision 270108
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 270108 2014-08-17 18:24:59Z 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*/ 0, 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 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 326 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 327 */ 328#define SCSI_EVPD_NUM_SUPPORTED_PAGES 8 329 330static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 331 int param); 332static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 333static int ctl_init(void); 334void ctl_shutdown(void); 335static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 336static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 337static void ctl_ioctl_online(void *arg); 338static void ctl_ioctl_offline(void *arg); 339static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 340static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 341static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 342static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 343static int ctl_ioctl_submit_wait(union ctl_io *io); 344static void ctl_ioctl_datamove(union ctl_io *io); 345static void ctl_ioctl_done(union ctl_io *io); 346static void ctl_ioctl_hard_startstop_callback(void *arg, 347 struct cfi_metatask *metatask); 348static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 349static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 350 struct ctl_ooa *ooa_hdr, 351 struct ctl_ooa_entry *kern_entries); 352static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 353 struct thread *td); 354static uint32_t ctl_map_lun(int port_num, uint32_t lun); 355static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 356#ifdef unused 357static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 358 uint32_t targ_target, uint32_t targ_lun, 359 int can_wait); 360static void ctl_kfree_io(union ctl_io *io); 361#endif /* unused */ 362static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 363 struct ctl_be_lun *be_lun, struct ctl_id target_id); 364static int ctl_free_lun(struct ctl_lun *lun); 365static void ctl_create_lun(struct ctl_be_lun *be_lun); 366/** 367static void ctl_failover_change_pages(struct ctl_softc *softc, 368 struct ctl_scsiio *ctsio, int master); 369**/ 370 371static int ctl_do_mode_select(union ctl_io *io); 372static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 373 uint64_t res_key, uint64_t sa_res_key, 374 uint8_t type, uint32_t residx, 375 struct ctl_scsiio *ctsio, 376 struct scsi_per_res_out *cdb, 377 struct scsi_per_res_out_parms* param); 378static void ctl_pro_preempt_other(struct ctl_lun *lun, 379 union ctl_ha_msg *msg); 380static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 381static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 382static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 383static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 384static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 385 int alloc_len); 386static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 387 int alloc_len); 388static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 389static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 390static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 391static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 392static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 393static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 394static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 395 union ctl_io *ooa_io); 396static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 397 union ctl_io *starting_io); 398static int ctl_check_blocked(struct ctl_lun *lun); 399static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 400 struct ctl_lun *lun, 401 const struct ctl_cmd_entry *entry, 402 struct ctl_scsiio *ctsio); 403//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 404static void ctl_failover(void); 405static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 406 struct ctl_scsiio *ctsio); 407static int ctl_scsiio(struct ctl_scsiio *ctsio); 408 409static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 410static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 411 ctl_ua_type ua_type); 412static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 413 ctl_ua_type ua_type); 414static int ctl_abort_task(union ctl_io *io); 415static int ctl_abort_task_set(union ctl_io *io); 416static int ctl_i_t_nexus_reset(union ctl_io *io); 417static void ctl_run_task(union ctl_io *io); 418#ifdef CTL_IO_DELAY 419static void ctl_datamove_timer_wakeup(void *arg); 420static void ctl_done_timer_wakeup(void *arg); 421#endif /* CTL_IO_DELAY */ 422 423static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 424static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 425static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 426static void ctl_datamove_remote_write(union ctl_io *io); 427static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 428static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 429static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 430static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 431 ctl_ha_dt_cb callback); 432static void ctl_datamove_remote_read(union ctl_io *io); 433static void ctl_datamove_remote(union ctl_io *io); 434static int ctl_process_done(union ctl_io *io); 435static void ctl_lun_thread(void *arg); 436static void ctl_work_thread(void *arg); 437static void ctl_enqueue_incoming(union ctl_io *io); 438static void ctl_enqueue_rtr(union ctl_io *io); 439static void ctl_enqueue_done(union ctl_io *io); 440static void ctl_enqueue_isc(union ctl_io *io); 441static const struct ctl_cmd_entry * 442 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 443static const struct ctl_cmd_entry * 444 ctl_validate_command(struct ctl_scsiio *ctsio); 445static int ctl_cmd_applicable(uint8_t lun_type, 446 const struct ctl_cmd_entry *entry); 447 448/* 449 * Load the serialization table. This isn't very pretty, but is probably 450 * the easiest way to do it. 451 */ 452#include "ctl_ser_table.c" 453 454/* 455 * We only need to define open, close and ioctl routines for this driver. 456 */ 457static struct cdevsw ctl_cdevsw = { 458 .d_version = D_VERSION, 459 .d_flags = 0, 460 .d_open = ctl_open, 461 .d_close = ctl_close, 462 .d_ioctl = ctl_ioctl, 463 .d_name = "ctl", 464}; 465 466 467MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 468MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 469 470static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 471 472static moduledata_t ctl_moduledata = { 473 "ctl", 474 ctl_module_event_handler, 475 NULL 476}; 477 478DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 479MODULE_VERSION(ctl, 1); 480 481static struct ctl_frontend ioctl_frontend = 482{ 483 .name = "ioctl", 484}; 485 486static void 487ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 488 union ctl_ha_msg *msg_info) 489{ 490 struct ctl_scsiio *ctsio; 491 492 if (msg_info->hdr.original_sc == NULL) { 493 printf("%s: original_sc == NULL!\n", __func__); 494 /* XXX KDM now what? */ 495 return; 496 } 497 498 ctsio = &msg_info->hdr.original_sc->scsiio; 499 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 500 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 501 ctsio->io_hdr.status = msg_info->hdr.status; 502 ctsio->scsi_status = msg_info->scsi.scsi_status; 503 ctsio->sense_len = msg_info->scsi.sense_len; 504 ctsio->sense_residual = msg_info->scsi.sense_residual; 505 ctsio->residual = msg_info->scsi.residual; 506 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 507 sizeof(ctsio->sense_data)); 508 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 509 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 510 ctl_enqueue_isc((union ctl_io *)ctsio); 511} 512 513static void 514ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 515 union ctl_ha_msg *msg_info) 516{ 517 struct ctl_scsiio *ctsio; 518 519 if (msg_info->hdr.serializing_sc == NULL) { 520 printf("%s: serializing_sc == NULL!\n", __func__); 521 /* XXX KDM now what? */ 522 return; 523 } 524 525 ctsio = &msg_info->hdr.serializing_sc->scsiio; 526#if 0 527 /* 528 * Attempt to catch the situation where an I/O has 529 * been freed, and we're using it again. 530 */ 531 if (ctsio->io_hdr.io_type == 0xff) { 532 union ctl_io *tmp_io; 533 tmp_io = (union ctl_io *)ctsio; 534 printf("%s: %p use after free!\n", __func__, 535 ctsio); 536 printf("%s: type %d msg %d cdb %x iptl: " 537 "%d:%d:%d:%d tag 0x%04x " 538 "flag %#x status %x\n", 539 __func__, 540 tmp_io->io_hdr.io_type, 541 tmp_io->io_hdr.msg_type, 542 tmp_io->scsiio.cdb[0], 543 tmp_io->io_hdr.nexus.initid.id, 544 tmp_io->io_hdr.nexus.targ_port, 545 tmp_io->io_hdr.nexus.targ_target.id, 546 tmp_io->io_hdr.nexus.targ_lun, 547 (tmp_io->io_hdr.io_type == 548 CTL_IO_TASK) ? 549 tmp_io->taskio.tag_num : 550 tmp_io->scsiio.tag_num, 551 tmp_io->io_hdr.flags, 552 tmp_io->io_hdr.status); 553 } 554#endif 555 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 556 ctl_enqueue_isc((union ctl_io *)ctsio); 557} 558 559/* 560 * ISC (Inter Shelf Communication) event handler. Events from the HA 561 * subsystem come in here. 562 */ 563static void 564ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 565{ 566 struct ctl_softc *ctl_softc; 567 union ctl_io *io; 568 struct ctl_prio *presio; 569 ctl_ha_status isc_status; 570 571 ctl_softc = control_softc; 572 io = NULL; 573 574 575#if 0 576 printf("CTL: Isc Msg event %d\n", event); 577#endif 578 if (event == CTL_HA_EVT_MSG_RECV) { 579 union ctl_ha_msg msg_info; 580 581 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 582 sizeof(msg_info), /*wait*/ 0); 583#if 0 584 printf("CTL: msg_type %d\n", msg_info.msg_type); 585#endif 586 if (isc_status != 0) { 587 printf("Error receiving message, status = %d\n", 588 isc_status); 589 return; 590 } 591 592 switch (msg_info.hdr.msg_type) { 593 case CTL_MSG_SERIALIZE: 594#if 0 595 printf("Serialize\n"); 596#endif 597 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 598 if (io == NULL) { 599 printf("ctl_isc_event_handler: can't allocate " 600 "ctl_io!\n"); 601 /* Bad Juju */ 602 /* Need to set busy and send msg back */ 603 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 604 msg_info.hdr.status = CTL_SCSI_ERROR; 605 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 606 msg_info.scsi.sense_len = 0; 607 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 608 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 609 } 610 goto bailout; 611 } 612 ctl_zero_io(io); 613 // populate ctsio from msg_info 614 io->io_hdr.io_type = CTL_IO_SCSI; 615 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 616 io->io_hdr.original_sc = msg_info.hdr.original_sc; 617#if 0 618 printf("pOrig %x\n", (int)msg_info.original_sc); 619#endif 620 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 621 CTL_FLAG_IO_ACTIVE; 622 /* 623 * If we're in serialization-only mode, we don't 624 * want to go through full done processing. Thus 625 * the COPY flag. 626 * 627 * XXX KDM add another flag that is more specific. 628 */ 629 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 630 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 631 io->io_hdr.nexus = msg_info.hdr.nexus; 632#if 0 633 printf("targ %d, port %d, iid %d, lun %d\n", 634 io->io_hdr.nexus.targ_target.id, 635 io->io_hdr.nexus.targ_port, 636 io->io_hdr.nexus.initid.id, 637 io->io_hdr.nexus.targ_lun); 638#endif 639 io->scsiio.tag_num = msg_info.scsi.tag_num; 640 io->scsiio.tag_type = msg_info.scsi.tag_type; 641 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 642 CTL_MAX_CDBLEN); 643 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 644 const struct ctl_cmd_entry *entry; 645 646 entry = ctl_get_cmd_entry(&io->scsiio); 647 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 648 io->io_hdr.flags |= 649 entry->flags & CTL_FLAG_DATA_MASK; 650 } 651 ctl_enqueue_isc(io); 652 break; 653 654 /* Performed on the Originating SC, XFER mode only */ 655 case CTL_MSG_DATAMOVE: { 656 struct ctl_sg_entry *sgl; 657 int i, j; 658 659 io = msg_info.hdr.original_sc; 660 if (io == NULL) { 661 printf("%s: original_sc == NULL!\n", __func__); 662 /* XXX KDM do something here */ 663 break; 664 } 665 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 666 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 667 /* 668 * Keep track of this, we need to send it back over 669 * when the datamove is complete. 670 */ 671 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 672 673 if (msg_info.dt.sg_sequence == 0) { 674 /* 675 * XXX KDM we use the preallocated S/G list 676 * here, but we'll need to change this to 677 * dynamic allocation if we need larger S/G 678 * lists. 679 */ 680 if (msg_info.dt.kern_sg_entries > 681 sizeof(io->io_hdr.remote_sglist) / 682 sizeof(io->io_hdr.remote_sglist[0])) { 683 printf("%s: number of S/G entries " 684 "needed %u > allocated num %zd\n", 685 __func__, 686 msg_info.dt.kern_sg_entries, 687 sizeof(io->io_hdr.remote_sglist)/ 688 sizeof(io->io_hdr.remote_sglist[0])); 689 690 /* 691 * XXX KDM send a message back to 692 * the other side to shut down the 693 * DMA. The error will come back 694 * through via the normal channel. 695 */ 696 break; 697 } 698 sgl = io->io_hdr.remote_sglist; 699 memset(sgl, 0, 700 sizeof(io->io_hdr.remote_sglist)); 701 702 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 703 704 io->scsiio.kern_sg_entries = 705 msg_info.dt.kern_sg_entries; 706 io->scsiio.rem_sg_entries = 707 msg_info.dt.kern_sg_entries; 708 io->scsiio.kern_data_len = 709 msg_info.dt.kern_data_len; 710 io->scsiio.kern_total_len = 711 msg_info.dt.kern_total_len; 712 io->scsiio.kern_data_resid = 713 msg_info.dt.kern_data_resid; 714 io->scsiio.kern_rel_offset = 715 msg_info.dt.kern_rel_offset; 716 /* 717 * Clear out per-DMA flags. 718 */ 719 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 720 /* 721 * Add per-DMA flags that are set for this 722 * particular DMA request. 723 */ 724 io->io_hdr.flags |= msg_info.dt.flags & 725 CTL_FLAG_RDMA_MASK; 726 } else 727 sgl = (struct ctl_sg_entry *) 728 io->scsiio.kern_data_ptr; 729 730 for (i = msg_info.dt.sent_sg_entries, j = 0; 731 i < (msg_info.dt.sent_sg_entries + 732 msg_info.dt.cur_sg_entries); i++, j++) { 733 sgl[i].addr = msg_info.dt.sg_list[j].addr; 734 sgl[i].len = msg_info.dt.sg_list[j].len; 735 736#if 0 737 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 738 __func__, 739 msg_info.dt.sg_list[j].addr, 740 msg_info.dt.sg_list[j].len, 741 sgl[i].addr, sgl[i].len, j, i); 742#endif 743 } 744#if 0 745 memcpy(&sgl[msg_info.dt.sent_sg_entries], 746 msg_info.dt.sg_list, 747 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 748#endif 749 750 /* 751 * If this is the last piece of the I/O, we've got 752 * the full S/G list. Queue processing in the thread. 753 * Otherwise wait for the next piece. 754 */ 755 if (msg_info.dt.sg_last != 0) 756 ctl_enqueue_isc(io); 757 break; 758 } 759 /* Performed on the Serializing (primary) SC, XFER mode only */ 760 case CTL_MSG_DATAMOVE_DONE: { 761 if (msg_info.hdr.serializing_sc == NULL) { 762 printf("%s: serializing_sc == NULL!\n", 763 __func__); 764 /* XXX KDM now what? */ 765 break; 766 } 767 /* 768 * We grab the sense information here in case 769 * there was a failure, so we can return status 770 * back to the initiator. 771 */ 772 io = msg_info.hdr.serializing_sc; 773 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 774 io->io_hdr.status = msg_info.hdr.status; 775 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 776 io->scsiio.sense_len = msg_info.scsi.sense_len; 777 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 778 io->io_hdr.port_status = msg_info.scsi.fetd_status; 779 io->scsiio.residual = msg_info.scsi.residual; 780 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 781 sizeof(io->scsiio.sense_data)); 782 ctl_enqueue_isc(io); 783 break; 784 } 785 786 /* Preformed on Originating SC, SER_ONLY mode */ 787 case CTL_MSG_R2R: 788 io = msg_info.hdr.original_sc; 789 if (io == NULL) { 790 printf("%s: Major Bummer\n", __func__); 791 return; 792 } else { 793#if 0 794 printf("pOrig %x\n",(int) ctsio); 795#endif 796 } 797 io->io_hdr.msg_type = CTL_MSG_R2R; 798 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 799 ctl_enqueue_isc(io); 800 break; 801 802 /* 803 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 804 * mode. 805 * Performed on the Originating (i.e. secondary) SC in XFER 806 * mode 807 */ 808 case CTL_MSG_FINISH_IO: 809 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 810 ctl_isc_handler_finish_xfer(ctl_softc, 811 &msg_info); 812 else 813 ctl_isc_handler_finish_ser_only(ctl_softc, 814 &msg_info); 815 break; 816 817 /* Preformed on Originating SC */ 818 case CTL_MSG_BAD_JUJU: 819 io = msg_info.hdr.original_sc; 820 if (io == NULL) { 821 printf("%s: Bad JUJU!, original_sc is NULL!\n", 822 __func__); 823 break; 824 } 825 ctl_copy_sense_data(&msg_info, io); 826 /* 827 * IO should have already been cleaned up on other 828 * SC so clear this flag so we won't send a message 829 * back to finish the IO there. 830 */ 831 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 832 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 833 834 /* io = msg_info.hdr.serializing_sc; */ 835 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 836 ctl_enqueue_isc(io); 837 break; 838 839 /* Handle resets sent from the other side */ 840 case CTL_MSG_MANAGE_TASKS: { 841 struct ctl_taskio *taskio; 842 taskio = (struct ctl_taskio *)ctl_alloc_io( 843 (void *)ctl_softc->othersc_pool); 844 if (taskio == NULL) { 845 printf("ctl_isc_event_handler: can't allocate " 846 "ctl_io!\n"); 847 /* Bad Juju */ 848 /* should I just call the proper reset func 849 here??? */ 850 goto bailout; 851 } 852 ctl_zero_io((union ctl_io *)taskio); 853 taskio->io_hdr.io_type = CTL_IO_TASK; 854 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 855 taskio->io_hdr.nexus = msg_info.hdr.nexus; 856 taskio->task_action = msg_info.task.task_action; 857 taskio->tag_num = msg_info.task.tag_num; 858 taskio->tag_type = msg_info.task.tag_type; 859#ifdef CTL_TIME_IO 860 taskio->io_hdr.start_time = time_uptime; 861 getbintime(&taskio->io_hdr.start_bt); 862#if 0 863 cs_prof_gettime(&taskio->io_hdr.start_ticks); 864#endif 865#endif /* CTL_TIME_IO */ 866 ctl_run_task((union ctl_io *)taskio); 867 break; 868 } 869 /* Persistent Reserve action which needs attention */ 870 case CTL_MSG_PERS_ACTION: 871 presio = (struct ctl_prio *)ctl_alloc_io( 872 (void *)ctl_softc->othersc_pool); 873 if (presio == NULL) { 874 printf("ctl_isc_event_handler: can't allocate " 875 "ctl_io!\n"); 876 /* Bad Juju */ 877 /* Need to set busy and send msg back */ 878 goto bailout; 879 } 880 ctl_zero_io((union ctl_io *)presio); 881 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 882 presio->pr_msg = msg_info.pr; 883 ctl_enqueue_isc((union ctl_io *)presio); 884 break; 885 case CTL_MSG_SYNC_FE: 886 rcv_sync_msg = 1; 887 break; 888 case CTL_MSG_APS_LOCK: { 889 // It's quicker to execute this then to 890 // queue it. 891 struct ctl_lun *lun; 892 struct ctl_page_index *page_index; 893 struct copan_aps_subpage *current_sp; 894 uint32_t targ_lun; 895 896 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 897 lun = ctl_softc->ctl_luns[targ_lun]; 898 mtx_lock(&lun->lun_lock); 899 page_index = &lun->mode_pages.index[index_to_aps_page]; 900 current_sp = (struct copan_aps_subpage *) 901 (page_index->page_data + 902 (page_index->page_len * CTL_PAGE_CURRENT)); 903 904 current_sp->lock_active = msg_info.aps.lock_flag; 905 mtx_unlock(&lun->lun_lock); 906 break; 907 } 908 default: 909 printf("How did I get here?\n"); 910 } 911 } else if (event == CTL_HA_EVT_MSG_SENT) { 912 if (param != CTL_HA_STATUS_SUCCESS) { 913 printf("Bad status from ctl_ha_msg_send status %d\n", 914 param); 915 } 916 return; 917 } else if (event == CTL_HA_EVT_DISCONNECT) { 918 printf("CTL: Got a disconnect from Isc\n"); 919 return; 920 } else { 921 printf("ctl_isc_event_handler: Unknown event %d\n", event); 922 return; 923 } 924 925bailout: 926 return; 927} 928 929static void 930ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 931{ 932 struct scsi_sense_data *sense; 933 934 sense = &dest->scsiio.sense_data; 935 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 936 dest->scsiio.scsi_status = src->scsi.scsi_status; 937 dest->scsiio.sense_len = src->scsi.sense_len; 938 dest->io_hdr.status = src->hdr.status; 939} 940 941static int 942ctl_init(void) 943{ 944 struct ctl_softc *softc; 945 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 946 struct ctl_port *port; 947 uint8_t sc_id =0; 948 int i, error, retval; 949 //int isc_retval; 950 951 retval = 0; 952 ctl_pause_rtr = 0; 953 rcv_sync_msg = 0; 954 955 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 956 M_WAITOK | M_ZERO); 957 softc = control_softc; 958 959 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 960 "cam/ctl"); 961 962 softc->dev->si_drv1 = softc; 963 964 /* 965 * By default, return a "bad LUN" peripheral qualifier for unknown 966 * LUNs. The user can override this default using the tunable or 967 * sysctl. See the comment in ctl_inquiry_std() for more details. 968 */ 969 softc->inquiry_pq_no_lun = 1; 970 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 971 &softc->inquiry_pq_no_lun); 972 sysctl_ctx_init(&softc->sysctl_ctx); 973 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 974 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 975 CTLFLAG_RD, 0, "CAM Target Layer"); 976 977 if (softc->sysctl_tree == NULL) { 978 printf("%s: unable to allocate sysctl tree\n", __func__); 979 destroy_dev(softc->dev); 980 free(control_softc, M_DEVBUF); 981 control_softc = NULL; 982 return (ENOMEM); 983 } 984 985 SYSCTL_ADD_INT(&softc->sysctl_ctx, 986 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 987 "inquiry_pq_no_lun", CTLFLAG_RW, 988 &softc->inquiry_pq_no_lun, 0, 989 "Report no lun possible for invalid LUNs"); 990 991 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 992 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 993 softc->open_count = 0; 994 995 /* 996 * Default to actually sending a SYNCHRONIZE CACHE command down to 997 * the drive. 998 */ 999 softc->flags = CTL_FLAG_REAL_SYNC; 1000 1001 /* 1002 * In Copan's HA scheme, the "master" and "slave" roles are 1003 * figured out through the slot the controller is in. Although it 1004 * is an active/active system, someone has to be in charge. 1005 */ 1006#ifdef NEEDTOPORT 1007 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1008#endif 1009 1010 if (sc_id == 0) { 1011 softc->flags |= CTL_FLAG_MASTER_SHELF; 1012 persis_offset = 0; 1013 } else 1014 persis_offset = CTL_MAX_INITIATORS; 1015 1016 /* 1017 * XXX KDM need to figure out where we want to get our target ID 1018 * and WWID. Is it different on each port? 1019 */ 1020 softc->target.id = 0; 1021 softc->target.wwid[0] = 0x12345678; 1022 softc->target.wwid[1] = 0x87654321; 1023 STAILQ_INIT(&softc->lun_list); 1024 STAILQ_INIT(&softc->pending_lun_queue); 1025 STAILQ_INIT(&softc->fe_list); 1026 STAILQ_INIT(&softc->port_list); 1027 STAILQ_INIT(&softc->be_list); 1028 STAILQ_INIT(&softc->io_pools); 1029 ctl_tpc_init(softc); 1030 1031 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1032 &internal_pool)!= 0){ 1033 printf("ctl: can't allocate %d entry internal pool, " 1034 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1035 return (ENOMEM); 1036 } 1037 1038 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1039 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1040 printf("ctl: can't allocate %d entry emergency pool, " 1041 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1042 ctl_pool_free(internal_pool); 1043 return (ENOMEM); 1044 } 1045 1046 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1047 &other_pool) != 0) 1048 { 1049 printf("ctl: can't allocate %d entry other SC pool, " 1050 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1051 ctl_pool_free(internal_pool); 1052 ctl_pool_free(emergency_pool); 1053 return (ENOMEM); 1054 } 1055 1056 softc->internal_pool = internal_pool; 1057 softc->emergency_pool = emergency_pool; 1058 softc->othersc_pool = other_pool; 1059 1060 if (worker_threads <= 0) 1061 worker_threads = max(1, mp_ncpus / 4); 1062 if (worker_threads > CTL_MAX_THREADS) 1063 worker_threads = CTL_MAX_THREADS; 1064 1065 for (i = 0; i < worker_threads; i++) { 1066 struct ctl_thread *thr = &softc->threads[i]; 1067 1068 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1069 thr->ctl_softc = softc; 1070 STAILQ_INIT(&thr->incoming_queue); 1071 STAILQ_INIT(&thr->rtr_queue); 1072 STAILQ_INIT(&thr->done_queue); 1073 STAILQ_INIT(&thr->isc_queue); 1074 1075 error = kproc_kthread_add(ctl_work_thread, thr, 1076 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1077 if (error != 0) { 1078 printf("error creating CTL work thread!\n"); 1079 ctl_pool_free(internal_pool); 1080 ctl_pool_free(emergency_pool); 1081 ctl_pool_free(other_pool); 1082 return (error); 1083 } 1084 } 1085 error = kproc_kthread_add(ctl_lun_thread, softc, 1086 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1087 if (error != 0) { 1088 printf("error creating CTL lun thread!\n"); 1089 ctl_pool_free(internal_pool); 1090 ctl_pool_free(emergency_pool); 1091 ctl_pool_free(other_pool); 1092 return (error); 1093 } 1094 if (bootverbose) 1095 printf("ctl: CAM Target Layer loaded\n"); 1096 1097 /* 1098 * Initialize the ioctl front end. 1099 */ 1100 ctl_frontend_register(&ioctl_frontend); 1101 port = &softc->ioctl_info.port; 1102 port->frontend = &ioctl_frontend; 1103 sprintf(softc->ioctl_info.port_name, "ioctl"); 1104 port->port_type = CTL_PORT_IOCTL; 1105 port->num_requested_ctl_io = 100; 1106 port->port_name = softc->ioctl_info.port_name; 1107 port->port_online = ctl_ioctl_online; 1108 port->port_offline = ctl_ioctl_offline; 1109 port->onoff_arg = &softc->ioctl_info; 1110 port->lun_enable = ctl_ioctl_lun_enable; 1111 port->lun_disable = ctl_ioctl_lun_disable; 1112 port->targ_lun_arg = &softc->ioctl_info; 1113 port->fe_datamove = ctl_ioctl_datamove; 1114 port->fe_done = ctl_ioctl_done; 1115 port->max_targets = 15; 1116 port->max_target_id = 15; 1117 1118 if (ctl_port_register(&softc->ioctl_info.port, 1119 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1120 printf("ctl: ioctl front end registration failed, will " 1121 "continue anyway\n"); 1122 } 1123 1124#ifdef CTL_IO_DELAY 1125 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1126 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1127 sizeof(struct callout), CTL_TIMER_BYTES); 1128 return (EINVAL); 1129 } 1130#endif /* CTL_IO_DELAY */ 1131 1132 return (0); 1133} 1134 1135void 1136ctl_shutdown(void) 1137{ 1138 struct ctl_softc *softc; 1139 struct ctl_lun *lun, *next_lun; 1140 struct ctl_io_pool *pool; 1141 1142 softc = (struct ctl_softc *)control_softc; 1143 1144 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1145 printf("ctl: ioctl front end deregistration failed\n"); 1146 1147 mtx_lock(&softc->ctl_lock); 1148 1149 /* 1150 * Free up each LUN. 1151 */ 1152 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1153 next_lun = STAILQ_NEXT(lun, links); 1154 ctl_free_lun(lun); 1155 } 1156 1157 mtx_unlock(&softc->ctl_lock); 1158 1159 ctl_frontend_deregister(&ioctl_frontend); 1160 1161 /* 1162 * This will rip the rug out from under any FETDs or anyone else 1163 * that has a pool allocated. Since we increment our module 1164 * refcount any time someone outside the main CTL module allocates 1165 * a pool, we shouldn't have any problems here. The user won't be 1166 * able to unload the CTL module until client modules have 1167 * successfully unloaded. 1168 */ 1169 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1170 ctl_pool_free(pool); 1171 1172#if 0 1173 ctl_shutdown_thread(softc->work_thread); 1174 mtx_destroy(&softc->queue_lock); 1175#endif 1176 1177 ctl_tpc_shutdown(softc); 1178 mtx_destroy(&softc->pool_lock); 1179 mtx_destroy(&softc->ctl_lock); 1180 1181 destroy_dev(softc->dev); 1182 1183 sysctl_ctx_free(&softc->sysctl_ctx); 1184 1185 free(control_softc, M_DEVBUF); 1186 control_softc = NULL; 1187 1188 if (bootverbose) 1189 printf("ctl: CAM Target Layer unloaded\n"); 1190} 1191 1192static int 1193ctl_module_event_handler(module_t mod, int what, void *arg) 1194{ 1195 1196 switch (what) { 1197 case MOD_LOAD: 1198 return (ctl_init()); 1199 case MOD_UNLOAD: 1200 return (EBUSY); 1201 default: 1202 return (EOPNOTSUPP); 1203 } 1204} 1205 1206/* 1207 * XXX KDM should we do some access checks here? Bump a reference count to 1208 * prevent a CTL module from being unloaded while someone has it open? 1209 */ 1210static int 1211ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1212{ 1213 return (0); 1214} 1215 1216static int 1217ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1218{ 1219 return (0); 1220} 1221 1222int 1223ctl_port_enable(ctl_port_type port_type) 1224{ 1225 struct ctl_softc *softc; 1226 struct ctl_port *port; 1227 1228 if (ctl_is_single == 0) { 1229 union ctl_ha_msg msg_info; 1230 int isc_retval; 1231 1232#if 0 1233 printf("%s: HA mode, synchronizing frontend enable\n", 1234 __func__); 1235#endif 1236 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1237 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1238 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1239 printf("Sync msg send error retval %d\n", isc_retval); 1240 } 1241 if (!rcv_sync_msg) { 1242 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1243 sizeof(msg_info), 1); 1244 } 1245#if 0 1246 printf("CTL:Frontend Enable\n"); 1247 } else { 1248 printf("%s: single mode, skipping frontend synchronization\n", 1249 __func__); 1250#endif 1251 } 1252 1253 softc = control_softc; 1254 1255 STAILQ_FOREACH(port, &softc->port_list, links) { 1256 if (port_type & port->port_type) 1257 { 1258#if 0 1259 printf("port %d\n", port->targ_port); 1260#endif 1261 ctl_port_online(port); 1262 } 1263 } 1264 1265 return (0); 1266} 1267 1268int 1269ctl_port_disable(ctl_port_type port_type) 1270{ 1271 struct ctl_softc *softc; 1272 struct ctl_port *port; 1273 1274 softc = control_softc; 1275 1276 STAILQ_FOREACH(port, &softc->port_list, links) { 1277 if (port_type & port->port_type) 1278 ctl_port_offline(port); 1279 } 1280 1281 return (0); 1282} 1283 1284/* 1285 * Returns 0 for success, 1 for failure. 1286 * Currently the only failure mode is if there aren't enough entries 1287 * allocated. So, in case of a failure, look at num_entries_dropped, 1288 * reallocate and try again. 1289 */ 1290int 1291ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1292 int *num_entries_filled, int *num_entries_dropped, 1293 ctl_port_type port_type, int no_virtual) 1294{ 1295 struct ctl_softc *softc; 1296 struct ctl_port *port; 1297 int entries_dropped, entries_filled; 1298 int retval; 1299 int i; 1300 1301 softc = control_softc; 1302 1303 retval = 0; 1304 entries_filled = 0; 1305 entries_dropped = 0; 1306 1307 i = 0; 1308 mtx_lock(&softc->ctl_lock); 1309 STAILQ_FOREACH(port, &softc->port_list, links) { 1310 struct ctl_port_entry *entry; 1311 1312 if ((port->port_type & port_type) == 0) 1313 continue; 1314 1315 if ((no_virtual != 0) 1316 && (port->virtual_port != 0)) 1317 continue; 1318 1319 if (entries_filled >= num_entries_alloced) { 1320 entries_dropped++; 1321 continue; 1322 } 1323 entry = &entries[i]; 1324 1325 entry->port_type = port->port_type; 1326 strlcpy(entry->port_name, port->port_name, 1327 sizeof(entry->port_name)); 1328 entry->physical_port = port->physical_port; 1329 entry->virtual_port = port->virtual_port; 1330 entry->wwnn = port->wwnn; 1331 entry->wwpn = port->wwpn; 1332 1333 i++; 1334 entries_filled++; 1335 } 1336 1337 mtx_unlock(&softc->ctl_lock); 1338 1339 if (entries_dropped > 0) 1340 retval = 1; 1341 1342 *num_entries_dropped = entries_dropped; 1343 *num_entries_filled = entries_filled; 1344 1345 return (retval); 1346} 1347 1348static void 1349ctl_ioctl_online(void *arg) 1350{ 1351 struct ctl_ioctl_info *ioctl_info; 1352 1353 ioctl_info = (struct ctl_ioctl_info *)arg; 1354 1355 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1356} 1357 1358static void 1359ctl_ioctl_offline(void *arg) 1360{ 1361 struct ctl_ioctl_info *ioctl_info; 1362 1363 ioctl_info = (struct ctl_ioctl_info *)arg; 1364 1365 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1366} 1367 1368/* 1369 * Remove an initiator by port number and initiator ID. 1370 * Returns 0 for success, -1 for failure. 1371 */ 1372int 1373ctl_remove_initiator(struct ctl_port *port, int iid) 1374{ 1375 struct ctl_softc *softc = control_softc; 1376 1377 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1378 1379 if (iid > CTL_MAX_INIT_PER_PORT) { 1380 printf("%s: initiator ID %u > maximun %u!\n", 1381 __func__, iid, CTL_MAX_INIT_PER_PORT); 1382 return (-1); 1383 } 1384 1385 mtx_lock(&softc->ctl_lock); 1386 port->wwpn_iid[iid].in_use--; 1387 port->wwpn_iid[iid].last_use = time_uptime; 1388 mtx_unlock(&softc->ctl_lock); 1389 1390 return (0); 1391} 1392 1393/* 1394 * Add an initiator to the initiator map. 1395 * Returns iid for success, < 0 for failure. 1396 */ 1397int 1398ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1399{ 1400 struct ctl_softc *softc = control_softc; 1401 time_t best_time; 1402 int i, best; 1403 1404 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1405 1406 if (iid >= CTL_MAX_INIT_PER_PORT) { 1407 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1408 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1409 free(name, M_CTL); 1410 return (-1); 1411 } 1412 1413 mtx_lock(&softc->ctl_lock); 1414 1415 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1416 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1417 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1418 iid = i; 1419 break; 1420 } 1421 if (name != NULL && port->wwpn_iid[i].name != NULL && 1422 strcmp(name, port->wwpn_iid[i].name) == 0) { 1423 iid = i; 1424 break; 1425 } 1426 } 1427 } 1428 1429 if (iid < 0) { 1430 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1431 if (port->wwpn_iid[i].in_use == 0 && 1432 port->wwpn_iid[i].wwpn == 0 && 1433 port->wwpn_iid[i].name == NULL) { 1434 iid = i; 1435 break; 1436 } 1437 } 1438 } 1439 1440 if (iid < 0) { 1441 best = -1; 1442 best_time = INT32_MAX; 1443 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1444 if (port->wwpn_iid[i].in_use == 0) { 1445 if (port->wwpn_iid[i].last_use < best_time) { 1446 best = i; 1447 best_time = port->wwpn_iid[i].last_use; 1448 } 1449 } 1450 } 1451 iid = best; 1452 } 1453 1454 if (iid < 0) { 1455 mtx_unlock(&softc->ctl_lock); 1456 free(name, M_CTL); 1457 return (-2); 1458 } 1459 1460 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1461 /* 1462 * This is not an error yet. 1463 */ 1464 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1465#if 0 1466 printf("%s: port %d iid %u WWPN %#jx arrived" 1467 " again\n", __func__, port->targ_port, 1468 iid, (uintmax_t)wwpn); 1469#endif 1470 goto take; 1471 } 1472 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1473 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1474#if 0 1475 printf("%s: port %d iid %u name '%s' arrived" 1476 " again\n", __func__, port->targ_port, 1477 iid, name); 1478#endif 1479 goto take; 1480 } 1481 1482 /* 1483 * This is an error, but what do we do about it? The 1484 * driver is telling us we have a new WWPN for this 1485 * initiator ID, so we pretty much need to use it. 1486 */ 1487 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1488 " but WWPN %#jx '%s' is still at that address\n", 1489 __func__, port->targ_port, iid, wwpn, name, 1490 (uintmax_t)port->wwpn_iid[iid].wwpn, 1491 port->wwpn_iid[iid].name); 1492 1493 /* 1494 * XXX KDM clear have_ca and ua_pending on each LUN for 1495 * this initiator. 1496 */ 1497 } 1498take: 1499 free(port->wwpn_iid[iid].name, M_CTL); 1500 port->wwpn_iid[iid].name = name; 1501 port->wwpn_iid[iid].wwpn = wwpn; 1502 port->wwpn_iid[iid].in_use++; 1503 mtx_unlock(&softc->ctl_lock); 1504 1505 return (iid); 1506} 1507 1508static int 1509ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1510{ 1511 int len; 1512 1513 switch (port->port_type) { 1514 case CTL_PORT_FC: 1515 { 1516 struct scsi_transportid_fcp *id = 1517 (struct scsi_transportid_fcp *)buf; 1518 if (port->wwpn_iid[iid].wwpn == 0) 1519 return (0); 1520 memset(id, 0, sizeof(*id)); 1521 id->format_protocol = SCSI_PROTO_FC; 1522 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1523 return (sizeof(*id)); 1524 } 1525 case CTL_PORT_ISCSI: 1526 { 1527 struct scsi_transportid_iscsi_port *id = 1528 (struct scsi_transportid_iscsi_port *)buf; 1529 if (port->wwpn_iid[iid].name == NULL) 1530 return (0); 1531 memset(id, 0, 256); 1532 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1533 SCSI_PROTO_ISCSI; 1534 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1535 len = roundup2(min(len, 252), 4); 1536 scsi_ulto2b(len, id->additional_length); 1537 return (sizeof(*id) + len); 1538 } 1539 case CTL_PORT_SAS: 1540 { 1541 struct scsi_transportid_sas *id = 1542 (struct scsi_transportid_sas *)buf; 1543 if (port->wwpn_iid[iid].wwpn == 0) 1544 return (0); 1545 memset(id, 0, sizeof(*id)); 1546 id->format_protocol = SCSI_PROTO_SAS; 1547 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1548 return (sizeof(*id)); 1549 } 1550 default: 1551 { 1552 struct scsi_transportid_spi *id = 1553 (struct scsi_transportid_spi *)buf; 1554 memset(id, 0, sizeof(*id)); 1555 id->format_protocol = SCSI_PROTO_SPI; 1556 scsi_ulto2b(iid, id->scsi_addr); 1557 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1558 return (sizeof(*id)); 1559 } 1560 } 1561} 1562 1563static int 1564ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1565{ 1566 return (0); 1567} 1568 1569static int 1570ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1571{ 1572 return (0); 1573} 1574 1575/* 1576 * Data movement routine for the CTL ioctl frontend port. 1577 */ 1578static int 1579ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1580{ 1581 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1582 struct ctl_sg_entry ext_entry, kern_entry; 1583 int ext_sglen, ext_sg_entries, kern_sg_entries; 1584 int ext_sg_start, ext_offset; 1585 int len_to_copy, len_copied; 1586 int kern_watermark, ext_watermark; 1587 int ext_sglist_malloced; 1588 int i, j; 1589 1590 ext_sglist_malloced = 0; 1591 ext_sg_start = 0; 1592 ext_offset = 0; 1593 1594 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1595 1596 /* 1597 * If this flag is set, fake the data transfer. 1598 */ 1599 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1600 ctsio->ext_data_filled = ctsio->ext_data_len; 1601 goto bailout; 1602 } 1603 1604 /* 1605 * To simplify things here, if we have a single buffer, stick it in 1606 * a S/G entry and just make it a single entry S/G list. 1607 */ 1608 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1609 int len_seen; 1610 1611 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1612 1613 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1614 M_WAITOK); 1615 ext_sglist_malloced = 1; 1616 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1617 ext_sglen) != 0) { 1618 ctl_set_internal_failure(ctsio, 1619 /*sks_valid*/ 0, 1620 /*retry_count*/ 0); 1621 goto bailout; 1622 } 1623 ext_sg_entries = ctsio->ext_sg_entries; 1624 len_seen = 0; 1625 for (i = 0; i < ext_sg_entries; i++) { 1626 if ((len_seen + ext_sglist[i].len) >= 1627 ctsio->ext_data_filled) { 1628 ext_sg_start = i; 1629 ext_offset = ctsio->ext_data_filled - len_seen; 1630 break; 1631 } 1632 len_seen += ext_sglist[i].len; 1633 } 1634 } else { 1635 ext_sglist = &ext_entry; 1636 ext_sglist->addr = ctsio->ext_data_ptr; 1637 ext_sglist->len = ctsio->ext_data_len; 1638 ext_sg_entries = 1; 1639 ext_sg_start = 0; 1640 ext_offset = ctsio->ext_data_filled; 1641 } 1642 1643 if (ctsio->kern_sg_entries > 0) { 1644 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1645 kern_sg_entries = ctsio->kern_sg_entries; 1646 } else { 1647 kern_sglist = &kern_entry; 1648 kern_sglist->addr = ctsio->kern_data_ptr; 1649 kern_sglist->len = ctsio->kern_data_len; 1650 kern_sg_entries = 1; 1651 } 1652 1653 1654 kern_watermark = 0; 1655 ext_watermark = ext_offset; 1656 len_copied = 0; 1657 for (i = ext_sg_start, j = 0; 1658 i < ext_sg_entries && j < kern_sg_entries;) { 1659 uint8_t *ext_ptr, *kern_ptr; 1660 1661 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1662 kern_sglist[j].len - kern_watermark); 1663 1664 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1665 ext_ptr = ext_ptr + ext_watermark; 1666 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1667 /* 1668 * XXX KDM fix this! 1669 */ 1670 panic("need to implement bus address support"); 1671#if 0 1672 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1673#endif 1674 } else 1675 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1676 kern_ptr = kern_ptr + kern_watermark; 1677 1678 kern_watermark += len_to_copy; 1679 ext_watermark += len_to_copy; 1680 1681 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1682 CTL_FLAG_DATA_IN) { 1683 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1684 "bytes to user\n", len_to_copy)); 1685 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1686 "to %p\n", kern_ptr, ext_ptr)); 1687 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1688 ctl_set_internal_failure(ctsio, 1689 /*sks_valid*/ 0, 1690 /*retry_count*/ 0); 1691 goto bailout; 1692 } 1693 } else { 1694 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1695 "bytes from user\n", len_to_copy)); 1696 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1697 "to %p\n", ext_ptr, kern_ptr)); 1698 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1699 ctl_set_internal_failure(ctsio, 1700 /*sks_valid*/ 0, 1701 /*retry_count*/0); 1702 goto bailout; 1703 } 1704 } 1705 1706 len_copied += len_to_copy; 1707 1708 if (ext_sglist[i].len == ext_watermark) { 1709 i++; 1710 ext_watermark = 0; 1711 } 1712 1713 if (kern_sglist[j].len == kern_watermark) { 1714 j++; 1715 kern_watermark = 0; 1716 } 1717 } 1718 1719 ctsio->ext_data_filled += len_copied; 1720 1721 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1722 "kern_sg_entries: %d\n", ext_sg_entries, 1723 kern_sg_entries)); 1724 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1725 "kern_data_len = %d\n", ctsio->ext_data_len, 1726 ctsio->kern_data_len)); 1727 1728 1729 /* XXX KDM set residual?? */ 1730bailout: 1731 1732 if (ext_sglist_malloced != 0) 1733 free(ext_sglist, M_CTL); 1734 1735 return (CTL_RETVAL_COMPLETE); 1736} 1737 1738/* 1739 * Serialize a command that went down the "wrong" side, and so was sent to 1740 * this controller for execution. The logic is a little different than the 1741 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1742 * sent back to the other side, but in the success case, we execute the 1743 * command on this side (XFER mode) or tell the other side to execute it 1744 * (SER_ONLY mode). 1745 */ 1746static int 1747ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1748{ 1749 struct ctl_softc *ctl_softc; 1750 union ctl_ha_msg msg_info; 1751 struct ctl_lun *lun; 1752 int retval = 0; 1753 uint32_t targ_lun; 1754 1755 ctl_softc = control_softc; 1756 1757 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1758 lun = ctl_softc->ctl_luns[targ_lun]; 1759 if (lun==NULL) 1760 { 1761 /* 1762 * Why isn't LUN defined? The other side wouldn't 1763 * send a cmd if the LUN is undefined. 1764 */ 1765 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1766 1767 /* "Logical unit not supported" */ 1768 ctl_set_sense_data(&msg_info.scsi.sense_data, 1769 lun, 1770 /*sense_format*/SSD_TYPE_NONE, 1771 /*current_error*/ 1, 1772 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1773 /*asc*/ 0x25, 1774 /*ascq*/ 0x00, 1775 SSD_ELEM_NONE); 1776 1777 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1778 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1779 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1780 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1781 msg_info.hdr.serializing_sc = NULL; 1782 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1783 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1784 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1785 } 1786 return(1); 1787 1788 } 1789 1790 mtx_lock(&lun->lun_lock); 1791 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1792 1793 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1794 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1795 ooa_links))) { 1796 case CTL_ACTION_BLOCK: 1797 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1798 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1799 blocked_links); 1800 break; 1801 case CTL_ACTION_PASS: 1802 case CTL_ACTION_SKIP: 1803 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1804 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1805 ctl_enqueue_rtr((union ctl_io *)ctsio); 1806 } else { 1807 1808 /* send msg back to other side */ 1809 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1810 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1811 msg_info.hdr.msg_type = CTL_MSG_R2R; 1812#if 0 1813 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1814#endif 1815 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1816 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1817 } 1818 } 1819 break; 1820 case CTL_ACTION_OVERLAP: 1821 /* OVERLAPPED COMMANDS ATTEMPTED */ 1822 ctl_set_sense_data(&msg_info.scsi.sense_data, 1823 lun, 1824 /*sense_format*/SSD_TYPE_NONE, 1825 /*current_error*/ 1, 1826 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1827 /*asc*/ 0x4E, 1828 /*ascq*/ 0x00, 1829 SSD_ELEM_NONE); 1830 1831 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1832 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1833 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1834 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1835 msg_info.hdr.serializing_sc = NULL; 1836 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1837#if 0 1838 printf("BAD JUJU:Major Bummer Overlap\n"); 1839#endif 1840 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1841 retval = 1; 1842 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1843 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1844 } 1845 break; 1846 case CTL_ACTION_OVERLAP_TAG: 1847 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1848 ctl_set_sense_data(&msg_info.scsi.sense_data, 1849 lun, 1850 /*sense_format*/SSD_TYPE_NONE, 1851 /*current_error*/ 1, 1852 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1853 /*asc*/ 0x4D, 1854 /*ascq*/ ctsio->tag_num & 0xff, 1855 SSD_ELEM_NONE); 1856 1857 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1858 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1859 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1860 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1861 msg_info.hdr.serializing_sc = NULL; 1862 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1863#if 0 1864 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1865#endif 1866 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1867 retval = 1; 1868 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1869 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1870 } 1871 break; 1872 case CTL_ACTION_ERROR: 1873 default: 1874 /* "Internal target failure" */ 1875 ctl_set_sense_data(&msg_info.scsi.sense_data, 1876 lun, 1877 /*sense_format*/SSD_TYPE_NONE, 1878 /*current_error*/ 1, 1879 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1880 /*asc*/ 0x44, 1881 /*ascq*/ 0x00, 1882 SSD_ELEM_NONE); 1883 1884 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1885 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1886 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1887 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1888 msg_info.hdr.serializing_sc = NULL; 1889 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1890#if 0 1891 printf("BAD JUJU:Major Bummer HW Error\n"); 1892#endif 1893 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1894 retval = 1; 1895 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1896 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1897 } 1898 break; 1899 } 1900 mtx_unlock(&lun->lun_lock); 1901 return (retval); 1902} 1903 1904static int 1905ctl_ioctl_submit_wait(union ctl_io *io) 1906{ 1907 struct ctl_fe_ioctl_params params; 1908 ctl_fe_ioctl_state last_state; 1909 int done, retval; 1910 1911 retval = 0; 1912 1913 bzero(¶ms, sizeof(params)); 1914 1915 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1916 cv_init(¶ms.sem, "ctlioccv"); 1917 params.state = CTL_IOCTL_INPROG; 1918 last_state = params.state; 1919 1920 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1921 1922 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1923 1924 /* This shouldn't happen */ 1925 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1926 return (retval); 1927 1928 done = 0; 1929 1930 do { 1931 mtx_lock(¶ms.ioctl_mtx); 1932 /* 1933 * Check the state here, and don't sleep if the state has 1934 * already changed (i.e. wakeup has already occured, but we 1935 * weren't waiting yet). 1936 */ 1937 if (params.state == last_state) { 1938 /* XXX KDM cv_wait_sig instead? */ 1939 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1940 } 1941 last_state = params.state; 1942 1943 switch (params.state) { 1944 case CTL_IOCTL_INPROG: 1945 /* Why did we wake up? */ 1946 /* XXX KDM error here? */ 1947 mtx_unlock(¶ms.ioctl_mtx); 1948 break; 1949 case CTL_IOCTL_DATAMOVE: 1950 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1951 1952 /* 1953 * change last_state back to INPROG to avoid 1954 * deadlock on subsequent data moves. 1955 */ 1956 params.state = last_state = CTL_IOCTL_INPROG; 1957 1958 mtx_unlock(¶ms.ioctl_mtx); 1959 ctl_ioctl_do_datamove(&io->scsiio); 1960 /* 1961 * Note that in some cases, most notably writes, 1962 * this will queue the I/O and call us back later. 1963 * In other cases, generally reads, this routine 1964 * will immediately call back and wake us up, 1965 * probably using our own context. 1966 */ 1967 io->scsiio.be_move_done(io); 1968 break; 1969 case CTL_IOCTL_DONE: 1970 mtx_unlock(¶ms.ioctl_mtx); 1971 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1972 done = 1; 1973 break; 1974 default: 1975 mtx_unlock(¶ms.ioctl_mtx); 1976 /* XXX KDM error here? */ 1977 break; 1978 } 1979 } while (done == 0); 1980 1981 mtx_destroy(¶ms.ioctl_mtx); 1982 cv_destroy(¶ms.sem); 1983 1984 return (CTL_RETVAL_COMPLETE); 1985} 1986 1987static void 1988ctl_ioctl_datamove(union ctl_io *io) 1989{ 1990 struct ctl_fe_ioctl_params *params; 1991 1992 params = (struct ctl_fe_ioctl_params *) 1993 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1994 1995 mtx_lock(¶ms->ioctl_mtx); 1996 params->state = CTL_IOCTL_DATAMOVE; 1997 cv_broadcast(¶ms->sem); 1998 mtx_unlock(¶ms->ioctl_mtx); 1999} 2000 2001static void 2002ctl_ioctl_done(union ctl_io *io) 2003{ 2004 struct ctl_fe_ioctl_params *params; 2005 2006 params = (struct ctl_fe_ioctl_params *) 2007 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2008 2009 mtx_lock(¶ms->ioctl_mtx); 2010 params->state = CTL_IOCTL_DONE; 2011 cv_broadcast(¶ms->sem); 2012 mtx_unlock(¶ms->ioctl_mtx); 2013} 2014 2015static void 2016ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2017{ 2018 struct ctl_fe_ioctl_startstop_info *sd_info; 2019 2020 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2021 2022 sd_info->hs_info.status = metatask->status; 2023 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2024 sd_info->hs_info.luns_complete = 2025 metatask->taskinfo.startstop.luns_complete; 2026 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2027 2028 cv_broadcast(&sd_info->sem); 2029} 2030 2031static void 2032ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2033{ 2034 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2035 2036 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2037 2038 mtx_lock(fe_bbr_info->lock); 2039 fe_bbr_info->bbr_info->status = metatask->status; 2040 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2041 fe_bbr_info->wakeup_done = 1; 2042 mtx_unlock(fe_bbr_info->lock); 2043 2044 cv_broadcast(&fe_bbr_info->sem); 2045} 2046 2047/* 2048 * Returns 0 for success, errno for failure. 2049 */ 2050static int 2051ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2052 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2053{ 2054 union ctl_io *io; 2055 int retval; 2056 2057 retval = 0; 2058 2059 mtx_lock(&lun->lun_lock); 2060 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2061 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2062 ooa_links)) { 2063 struct ctl_ooa_entry *entry; 2064 2065 /* 2066 * If we've got more than we can fit, just count the 2067 * remaining entries. 2068 */ 2069 if (*cur_fill_num >= ooa_hdr->alloc_num) 2070 continue; 2071 2072 entry = &kern_entries[*cur_fill_num]; 2073 2074 entry->tag_num = io->scsiio.tag_num; 2075 entry->lun_num = lun->lun; 2076#ifdef CTL_TIME_IO 2077 entry->start_bt = io->io_hdr.start_bt; 2078#endif 2079 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2080 entry->cdb_len = io->scsiio.cdb_len; 2081 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2082 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2083 2084 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2085 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2086 2087 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2088 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2089 2090 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2091 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2092 2093 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2094 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2095 } 2096 mtx_unlock(&lun->lun_lock); 2097 2098 return (retval); 2099} 2100 2101static void * 2102ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2103 size_t error_str_len) 2104{ 2105 void *kptr; 2106 2107 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2108 2109 if (copyin(user_addr, kptr, len) != 0) { 2110 snprintf(error_str, error_str_len, "Error copying %d bytes " 2111 "from user address %p to kernel address %p", len, 2112 user_addr, kptr); 2113 free(kptr, M_CTL); 2114 return (NULL); 2115 } 2116 2117 return (kptr); 2118} 2119 2120static void 2121ctl_free_args(int num_args, struct ctl_be_arg *args) 2122{ 2123 int i; 2124 2125 if (args == NULL) 2126 return; 2127 2128 for (i = 0; i < num_args; i++) { 2129 free(args[i].kname, M_CTL); 2130 free(args[i].kvalue, M_CTL); 2131 } 2132 2133 free(args, M_CTL); 2134} 2135 2136static struct ctl_be_arg * 2137ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2138 char *error_str, size_t error_str_len) 2139{ 2140 struct ctl_be_arg *args; 2141 int i; 2142 2143 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2144 error_str, error_str_len); 2145 2146 if (args == NULL) 2147 goto bailout; 2148 2149 for (i = 0; i < num_args; i++) { 2150 args[i].kname = NULL; 2151 args[i].kvalue = NULL; 2152 } 2153 2154 for (i = 0; i < num_args; i++) { 2155 uint8_t *tmpptr; 2156 2157 args[i].kname = ctl_copyin_alloc(args[i].name, 2158 args[i].namelen, error_str, error_str_len); 2159 if (args[i].kname == NULL) 2160 goto bailout; 2161 2162 if (args[i].kname[args[i].namelen - 1] != '\0') { 2163 snprintf(error_str, error_str_len, "Argument %d " 2164 "name is not NUL-terminated", i); 2165 goto bailout; 2166 } 2167 2168 if (args[i].flags & CTL_BEARG_RD) { 2169 tmpptr = ctl_copyin_alloc(args[i].value, 2170 args[i].vallen, error_str, error_str_len); 2171 if (tmpptr == NULL) 2172 goto bailout; 2173 if ((args[i].flags & CTL_BEARG_ASCII) 2174 && (tmpptr[args[i].vallen - 1] != '\0')) { 2175 snprintf(error_str, error_str_len, "Argument " 2176 "%d value is not NUL-terminated", i); 2177 goto bailout; 2178 } 2179 args[i].kvalue = tmpptr; 2180 } else { 2181 args[i].kvalue = malloc(args[i].vallen, 2182 M_CTL, M_WAITOK | M_ZERO); 2183 } 2184 } 2185 2186 return (args); 2187bailout: 2188 2189 ctl_free_args(num_args, args); 2190 2191 return (NULL); 2192} 2193 2194static void 2195ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2196{ 2197 int i; 2198 2199 for (i = 0; i < num_args; i++) { 2200 if (args[i].flags & CTL_BEARG_WR) 2201 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2202 } 2203} 2204 2205/* 2206 * Escape characters that are illegal or not recommended in XML. 2207 */ 2208int 2209ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2210{ 2211 int retval; 2212 2213 retval = 0; 2214 2215 for (; *str; str++) { 2216 switch (*str) { 2217 case '&': 2218 retval = sbuf_printf(sb, "&"); 2219 break; 2220 case '>': 2221 retval = sbuf_printf(sb, ">"); 2222 break; 2223 case '<': 2224 retval = sbuf_printf(sb, "<"); 2225 break; 2226 default: 2227 retval = sbuf_putc(sb, *str); 2228 break; 2229 } 2230 2231 if (retval != 0) 2232 break; 2233 2234 } 2235 2236 return (retval); 2237} 2238 2239static int 2240ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2241 struct thread *td) 2242{ 2243 struct ctl_softc *softc; 2244 int retval; 2245 2246 softc = control_softc; 2247 2248 retval = 0; 2249 2250 switch (cmd) { 2251 case CTL_IO: { 2252 union ctl_io *io; 2253 void *pool_tmp; 2254 2255 /* 2256 * If we haven't been "enabled", don't allow any SCSI I/O 2257 * to this FETD. 2258 */ 2259 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2260 retval = EPERM; 2261 break; 2262 } 2263 2264 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2265 if (io == NULL) { 2266 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2267 retval = ENOSPC; 2268 break; 2269 } 2270 2271 /* 2272 * Need to save the pool reference so it doesn't get 2273 * spammed by the user's ctl_io. 2274 */ 2275 pool_tmp = io->io_hdr.pool; 2276 2277 memcpy(io, (void *)addr, sizeof(*io)); 2278 2279 io->io_hdr.pool = pool_tmp; 2280 /* 2281 * No status yet, so make sure the status is set properly. 2282 */ 2283 io->io_hdr.status = CTL_STATUS_NONE; 2284 2285 /* 2286 * The user sets the initiator ID, target and LUN IDs. 2287 */ 2288 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2289 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2290 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2291 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2292 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2293 2294 retval = ctl_ioctl_submit_wait(io); 2295 2296 if (retval != 0) { 2297 ctl_free_io(io); 2298 break; 2299 } 2300 2301 memcpy((void *)addr, io, sizeof(*io)); 2302 2303 /* return this to our pool */ 2304 ctl_free_io(io); 2305 2306 break; 2307 } 2308 case CTL_ENABLE_PORT: 2309 case CTL_DISABLE_PORT: 2310 case CTL_SET_PORT_WWNS: { 2311 struct ctl_port *port; 2312 struct ctl_port_entry *entry; 2313 2314 entry = (struct ctl_port_entry *)addr; 2315 2316 mtx_lock(&softc->ctl_lock); 2317 STAILQ_FOREACH(port, &softc->port_list, links) { 2318 int action, done; 2319 2320 action = 0; 2321 done = 0; 2322 2323 if ((entry->port_type == CTL_PORT_NONE) 2324 && (entry->targ_port == port->targ_port)) { 2325 /* 2326 * If the user only wants to enable or 2327 * disable or set WWNs on a specific port, 2328 * do the operation and we're done. 2329 */ 2330 action = 1; 2331 done = 1; 2332 } else if (entry->port_type & port->port_type) { 2333 /* 2334 * Compare the user's type mask with the 2335 * particular frontend type to see if we 2336 * have a match. 2337 */ 2338 action = 1; 2339 done = 0; 2340 2341 /* 2342 * Make sure the user isn't trying to set 2343 * WWNs on multiple ports at the same time. 2344 */ 2345 if (cmd == CTL_SET_PORT_WWNS) { 2346 printf("%s: Can't set WWNs on " 2347 "multiple ports\n", __func__); 2348 retval = EINVAL; 2349 break; 2350 } 2351 } 2352 if (action != 0) { 2353 /* 2354 * XXX KDM we have to drop the lock here, 2355 * because the online/offline operations 2356 * can potentially block. We need to 2357 * reference count the frontends so they 2358 * can't go away, 2359 */ 2360 mtx_unlock(&softc->ctl_lock); 2361 2362 if (cmd == CTL_ENABLE_PORT) { 2363 struct ctl_lun *lun; 2364 2365 STAILQ_FOREACH(lun, &softc->lun_list, 2366 links) { 2367 port->lun_enable(port->targ_lun_arg, 2368 lun->target, 2369 lun->lun); 2370 } 2371 2372 ctl_port_online(port); 2373 } else if (cmd == CTL_DISABLE_PORT) { 2374 struct ctl_lun *lun; 2375 2376 ctl_port_offline(port); 2377 2378 STAILQ_FOREACH(lun, &softc->lun_list, 2379 links) { 2380 port->lun_disable( 2381 port->targ_lun_arg, 2382 lun->target, 2383 lun->lun); 2384 } 2385 } 2386 2387 mtx_lock(&softc->ctl_lock); 2388 2389 if (cmd == CTL_SET_PORT_WWNS) 2390 ctl_port_set_wwns(port, 2391 (entry->flags & CTL_PORT_WWNN_VALID) ? 2392 1 : 0, entry->wwnn, 2393 (entry->flags & CTL_PORT_WWPN_VALID) ? 2394 1 : 0, entry->wwpn); 2395 } 2396 if (done != 0) 2397 break; 2398 } 2399 mtx_unlock(&softc->ctl_lock); 2400 break; 2401 } 2402 case CTL_GET_PORT_LIST: { 2403 struct ctl_port *port; 2404 struct ctl_port_list *list; 2405 int i; 2406 2407 list = (struct ctl_port_list *)addr; 2408 2409 if (list->alloc_len != (list->alloc_num * 2410 sizeof(struct ctl_port_entry))) { 2411 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2412 "alloc_num %u * sizeof(struct ctl_port_entry) " 2413 "%zu\n", __func__, list->alloc_len, 2414 list->alloc_num, sizeof(struct ctl_port_entry)); 2415 retval = EINVAL; 2416 break; 2417 } 2418 list->fill_len = 0; 2419 list->fill_num = 0; 2420 list->dropped_num = 0; 2421 i = 0; 2422 mtx_lock(&softc->ctl_lock); 2423 STAILQ_FOREACH(port, &softc->port_list, links) { 2424 struct ctl_port_entry entry, *list_entry; 2425 2426 if (list->fill_num >= list->alloc_num) { 2427 list->dropped_num++; 2428 continue; 2429 } 2430 2431 entry.port_type = port->port_type; 2432 strlcpy(entry.port_name, port->port_name, 2433 sizeof(entry.port_name)); 2434 entry.targ_port = port->targ_port; 2435 entry.physical_port = port->physical_port; 2436 entry.virtual_port = port->virtual_port; 2437 entry.wwnn = port->wwnn; 2438 entry.wwpn = port->wwpn; 2439 if (port->status & CTL_PORT_STATUS_ONLINE) 2440 entry.online = 1; 2441 else 2442 entry.online = 0; 2443 2444 list_entry = &list->entries[i]; 2445 2446 retval = copyout(&entry, list_entry, sizeof(entry)); 2447 if (retval != 0) { 2448 printf("%s: CTL_GET_PORT_LIST: copyout " 2449 "returned %d\n", __func__, retval); 2450 break; 2451 } 2452 i++; 2453 list->fill_num++; 2454 list->fill_len += sizeof(entry); 2455 } 2456 mtx_unlock(&softc->ctl_lock); 2457 2458 /* 2459 * If this is non-zero, we had a copyout fault, so there's 2460 * probably no point in attempting to set the status inside 2461 * the structure. 2462 */ 2463 if (retval != 0) 2464 break; 2465 2466 if (list->dropped_num > 0) 2467 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2468 else 2469 list->status = CTL_PORT_LIST_OK; 2470 break; 2471 } 2472 case CTL_DUMP_OOA: { 2473 struct ctl_lun *lun; 2474 union ctl_io *io; 2475 char printbuf[128]; 2476 struct sbuf sb; 2477 2478 mtx_lock(&softc->ctl_lock); 2479 printf("Dumping OOA queues:\n"); 2480 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2481 mtx_lock(&lun->lun_lock); 2482 for (io = (union ctl_io *)TAILQ_FIRST( 2483 &lun->ooa_queue); io != NULL; 2484 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2485 ooa_links)) { 2486 sbuf_new(&sb, printbuf, sizeof(printbuf), 2487 SBUF_FIXEDLEN); 2488 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2489 (intmax_t)lun->lun, 2490 io->scsiio.tag_num, 2491 (io->io_hdr.flags & 2492 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2493 (io->io_hdr.flags & 2494 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2495 (io->io_hdr.flags & 2496 CTL_FLAG_ABORT) ? " ABORT" : "", 2497 (io->io_hdr.flags & 2498 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2499 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2500 sbuf_finish(&sb); 2501 printf("%s\n", sbuf_data(&sb)); 2502 } 2503 mtx_unlock(&lun->lun_lock); 2504 } 2505 printf("OOA queues dump done\n"); 2506 mtx_unlock(&softc->ctl_lock); 2507 break; 2508 } 2509 case CTL_GET_OOA: { 2510 struct ctl_lun *lun; 2511 struct ctl_ooa *ooa_hdr; 2512 struct ctl_ooa_entry *entries; 2513 uint32_t cur_fill_num; 2514 2515 ooa_hdr = (struct ctl_ooa *)addr; 2516 2517 if ((ooa_hdr->alloc_len == 0) 2518 || (ooa_hdr->alloc_num == 0)) { 2519 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2520 "must be non-zero\n", __func__, 2521 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2522 retval = EINVAL; 2523 break; 2524 } 2525 2526 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2527 sizeof(struct ctl_ooa_entry))) { 2528 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2529 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2530 __func__, ooa_hdr->alloc_len, 2531 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2532 retval = EINVAL; 2533 break; 2534 } 2535 2536 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2537 if (entries == NULL) { 2538 printf("%s: could not allocate %d bytes for OOA " 2539 "dump\n", __func__, ooa_hdr->alloc_len); 2540 retval = ENOMEM; 2541 break; 2542 } 2543 2544 mtx_lock(&softc->ctl_lock); 2545 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2546 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2547 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2548 mtx_unlock(&softc->ctl_lock); 2549 free(entries, M_CTL); 2550 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2551 __func__, (uintmax_t)ooa_hdr->lun_num); 2552 retval = EINVAL; 2553 break; 2554 } 2555 2556 cur_fill_num = 0; 2557 2558 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2559 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2560 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2561 ooa_hdr, entries); 2562 if (retval != 0) 2563 break; 2564 } 2565 if (retval != 0) { 2566 mtx_unlock(&softc->ctl_lock); 2567 free(entries, M_CTL); 2568 break; 2569 } 2570 } else { 2571 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2572 2573 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2574 entries); 2575 } 2576 mtx_unlock(&softc->ctl_lock); 2577 2578 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2579 ooa_hdr->fill_len = ooa_hdr->fill_num * 2580 sizeof(struct ctl_ooa_entry); 2581 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2582 if (retval != 0) { 2583 printf("%s: error copying out %d bytes for OOA dump\n", 2584 __func__, ooa_hdr->fill_len); 2585 } 2586 2587 getbintime(&ooa_hdr->cur_bt); 2588 2589 if (cur_fill_num > ooa_hdr->alloc_num) { 2590 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2591 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2592 } else { 2593 ooa_hdr->dropped_num = 0; 2594 ooa_hdr->status = CTL_OOA_OK; 2595 } 2596 2597 free(entries, M_CTL); 2598 break; 2599 } 2600 case CTL_CHECK_OOA: { 2601 union ctl_io *io; 2602 struct ctl_lun *lun; 2603 struct ctl_ooa_info *ooa_info; 2604 2605 2606 ooa_info = (struct ctl_ooa_info *)addr; 2607 2608 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2609 ooa_info->status = CTL_OOA_INVALID_LUN; 2610 break; 2611 } 2612 mtx_lock(&softc->ctl_lock); 2613 lun = softc->ctl_luns[ooa_info->lun_id]; 2614 if (lun == NULL) { 2615 mtx_unlock(&softc->ctl_lock); 2616 ooa_info->status = CTL_OOA_INVALID_LUN; 2617 break; 2618 } 2619 mtx_lock(&lun->lun_lock); 2620 mtx_unlock(&softc->ctl_lock); 2621 ooa_info->num_entries = 0; 2622 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2623 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2624 &io->io_hdr, ooa_links)) { 2625 ooa_info->num_entries++; 2626 } 2627 mtx_unlock(&lun->lun_lock); 2628 2629 ooa_info->status = CTL_OOA_SUCCESS; 2630 2631 break; 2632 } 2633 case CTL_HARD_START: 2634 case CTL_HARD_STOP: { 2635 struct ctl_fe_ioctl_startstop_info ss_info; 2636 struct cfi_metatask *metatask; 2637 struct mtx hs_mtx; 2638 2639 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2640 2641 cv_init(&ss_info.sem, "hard start/stop cv" ); 2642 2643 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2644 if (metatask == NULL) { 2645 retval = ENOMEM; 2646 mtx_destroy(&hs_mtx); 2647 break; 2648 } 2649 2650 if (cmd == CTL_HARD_START) 2651 metatask->tasktype = CFI_TASK_STARTUP; 2652 else 2653 metatask->tasktype = CFI_TASK_SHUTDOWN; 2654 2655 metatask->callback = ctl_ioctl_hard_startstop_callback; 2656 metatask->callback_arg = &ss_info; 2657 2658 cfi_action(metatask); 2659 2660 /* Wait for the callback */ 2661 mtx_lock(&hs_mtx); 2662 cv_wait_sig(&ss_info.sem, &hs_mtx); 2663 mtx_unlock(&hs_mtx); 2664 2665 /* 2666 * All information has been copied from the metatask by the 2667 * time cv_broadcast() is called, so we free the metatask here. 2668 */ 2669 cfi_free_metatask(metatask); 2670 2671 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2672 2673 mtx_destroy(&hs_mtx); 2674 break; 2675 } 2676 case CTL_BBRREAD: { 2677 struct ctl_bbrread_info *bbr_info; 2678 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2679 struct mtx bbr_mtx; 2680 struct cfi_metatask *metatask; 2681 2682 bbr_info = (struct ctl_bbrread_info *)addr; 2683 2684 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2685 2686 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2687 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2688 2689 fe_bbr_info.bbr_info = bbr_info; 2690 fe_bbr_info.lock = &bbr_mtx; 2691 2692 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2693 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2694 2695 if (metatask == NULL) { 2696 mtx_destroy(&bbr_mtx); 2697 cv_destroy(&fe_bbr_info.sem); 2698 retval = ENOMEM; 2699 break; 2700 } 2701 metatask->tasktype = CFI_TASK_BBRREAD; 2702 metatask->callback = ctl_ioctl_bbrread_callback; 2703 metatask->callback_arg = &fe_bbr_info; 2704 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2705 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2706 metatask->taskinfo.bbrread.len = bbr_info->len; 2707 2708 cfi_action(metatask); 2709 2710 mtx_lock(&bbr_mtx); 2711 while (fe_bbr_info.wakeup_done == 0) 2712 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2713 mtx_unlock(&bbr_mtx); 2714 2715 bbr_info->status = metatask->status; 2716 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2717 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2718 memcpy(&bbr_info->sense_data, 2719 &metatask->taskinfo.bbrread.sense_data, 2720 ctl_min(sizeof(bbr_info->sense_data), 2721 sizeof(metatask->taskinfo.bbrread.sense_data))); 2722 2723 cfi_free_metatask(metatask); 2724 2725 mtx_destroy(&bbr_mtx); 2726 cv_destroy(&fe_bbr_info.sem); 2727 2728 break; 2729 } 2730 case CTL_DELAY_IO: { 2731 struct ctl_io_delay_info *delay_info; 2732#ifdef CTL_IO_DELAY 2733 struct ctl_lun *lun; 2734#endif /* CTL_IO_DELAY */ 2735 2736 delay_info = (struct ctl_io_delay_info *)addr; 2737 2738#ifdef CTL_IO_DELAY 2739 mtx_lock(&softc->ctl_lock); 2740 2741 if ((delay_info->lun_id > CTL_MAX_LUNS) 2742 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2743 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2744 } else { 2745 lun = softc->ctl_luns[delay_info->lun_id]; 2746 mtx_lock(&lun->lun_lock); 2747 2748 delay_info->status = CTL_DELAY_STATUS_OK; 2749 2750 switch (delay_info->delay_type) { 2751 case CTL_DELAY_TYPE_CONT: 2752 break; 2753 case CTL_DELAY_TYPE_ONESHOT: 2754 break; 2755 default: 2756 delay_info->status = 2757 CTL_DELAY_STATUS_INVALID_TYPE; 2758 break; 2759 } 2760 2761 switch (delay_info->delay_loc) { 2762 case CTL_DELAY_LOC_DATAMOVE: 2763 lun->delay_info.datamove_type = 2764 delay_info->delay_type; 2765 lun->delay_info.datamove_delay = 2766 delay_info->delay_secs; 2767 break; 2768 case CTL_DELAY_LOC_DONE: 2769 lun->delay_info.done_type = 2770 delay_info->delay_type; 2771 lun->delay_info.done_delay = 2772 delay_info->delay_secs; 2773 break; 2774 default: 2775 delay_info->status = 2776 CTL_DELAY_STATUS_INVALID_LOC; 2777 break; 2778 } 2779 mtx_unlock(&lun->lun_lock); 2780 } 2781 2782 mtx_unlock(&softc->ctl_lock); 2783#else 2784 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2785#endif /* CTL_IO_DELAY */ 2786 break; 2787 } 2788 case CTL_REALSYNC_SET: { 2789 int *syncstate; 2790 2791 syncstate = (int *)addr; 2792 2793 mtx_lock(&softc->ctl_lock); 2794 switch (*syncstate) { 2795 case 0: 2796 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2797 break; 2798 case 1: 2799 softc->flags |= CTL_FLAG_REAL_SYNC; 2800 break; 2801 default: 2802 retval = EINVAL; 2803 break; 2804 } 2805 mtx_unlock(&softc->ctl_lock); 2806 break; 2807 } 2808 case CTL_REALSYNC_GET: { 2809 int *syncstate; 2810 2811 syncstate = (int*)addr; 2812 2813 mtx_lock(&softc->ctl_lock); 2814 if (softc->flags & CTL_FLAG_REAL_SYNC) 2815 *syncstate = 1; 2816 else 2817 *syncstate = 0; 2818 mtx_unlock(&softc->ctl_lock); 2819 2820 break; 2821 } 2822 case CTL_SETSYNC: 2823 case CTL_GETSYNC: { 2824 struct ctl_sync_info *sync_info; 2825 struct ctl_lun *lun; 2826 2827 sync_info = (struct ctl_sync_info *)addr; 2828 2829 mtx_lock(&softc->ctl_lock); 2830 lun = softc->ctl_luns[sync_info->lun_id]; 2831 if (lun == NULL) { 2832 mtx_unlock(&softc->ctl_lock); 2833 sync_info->status = CTL_GS_SYNC_NO_LUN; 2834 } 2835 /* 2836 * Get or set the sync interval. We're not bounds checking 2837 * in the set case, hopefully the user won't do something 2838 * silly. 2839 */ 2840 mtx_lock(&lun->lun_lock); 2841 mtx_unlock(&softc->ctl_lock); 2842 if (cmd == CTL_GETSYNC) 2843 sync_info->sync_interval = lun->sync_interval; 2844 else 2845 lun->sync_interval = sync_info->sync_interval; 2846 mtx_unlock(&lun->lun_lock); 2847 2848 sync_info->status = CTL_GS_SYNC_OK; 2849 2850 break; 2851 } 2852 case CTL_GETSTATS: { 2853 struct ctl_stats *stats; 2854 struct ctl_lun *lun; 2855 int i; 2856 2857 stats = (struct ctl_stats *)addr; 2858 2859 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2860 stats->alloc_len) { 2861 stats->status = CTL_SS_NEED_MORE_SPACE; 2862 stats->num_luns = softc->num_luns; 2863 break; 2864 } 2865 /* 2866 * XXX KDM no locking here. If the LUN list changes, 2867 * things can blow up. 2868 */ 2869 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2870 i++, lun = STAILQ_NEXT(lun, links)) { 2871 retval = copyout(&lun->stats, &stats->lun_stats[i], 2872 sizeof(lun->stats)); 2873 if (retval != 0) 2874 break; 2875 } 2876 stats->num_luns = softc->num_luns; 2877 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2878 softc->num_luns; 2879 stats->status = CTL_SS_OK; 2880#ifdef CTL_TIME_IO 2881 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2882#else 2883 stats->flags = CTL_STATS_FLAG_NONE; 2884#endif 2885 getnanouptime(&stats->timestamp); 2886 break; 2887 } 2888 case CTL_ERROR_INJECT: { 2889 struct ctl_error_desc *err_desc, *new_err_desc; 2890 struct ctl_lun *lun; 2891 2892 err_desc = (struct ctl_error_desc *)addr; 2893 2894 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2895 M_WAITOK | M_ZERO); 2896 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2897 2898 mtx_lock(&softc->ctl_lock); 2899 lun = softc->ctl_luns[err_desc->lun_id]; 2900 if (lun == NULL) { 2901 mtx_unlock(&softc->ctl_lock); 2902 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2903 __func__, (uintmax_t)err_desc->lun_id); 2904 retval = EINVAL; 2905 break; 2906 } 2907 mtx_lock(&lun->lun_lock); 2908 mtx_unlock(&softc->ctl_lock); 2909 2910 /* 2911 * We could do some checking here to verify the validity 2912 * of the request, but given the complexity of error 2913 * injection requests, the checking logic would be fairly 2914 * complex. 2915 * 2916 * For now, if the request is invalid, it just won't get 2917 * executed and might get deleted. 2918 */ 2919 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2920 2921 /* 2922 * XXX KDM check to make sure the serial number is unique, 2923 * in case we somehow manage to wrap. That shouldn't 2924 * happen for a very long time, but it's the right thing to 2925 * do. 2926 */ 2927 new_err_desc->serial = lun->error_serial; 2928 err_desc->serial = lun->error_serial; 2929 lun->error_serial++; 2930 2931 mtx_unlock(&lun->lun_lock); 2932 break; 2933 } 2934 case CTL_ERROR_INJECT_DELETE: { 2935 struct ctl_error_desc *delete_desc, *desc, *desc2; 2936 struct ctl_lun *lun; 2937 int delete_done; 2938 2939 delete_desc = (struct ctl_error_desc *)addr; 2940 delete_done = 0; 2941 2942 mtx_lock(&softc->ctl_lock); 2943 lun = softc->ctl_luns[delete_desc->lun_id]; 2944 if (lun == NULL) { 2945 mtx_unlock(&softc->ctl_lock); 2946 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2947 __func__, (uintmax_t)delete_desc->lun_id); 2948 retval = EINVAL; 2949 break; 2950 } 2951 mtx_lock(&lun->lun_lock); 2952 mtx_unlock(&softc->ctl_lock); 2953 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2954 if (desc->serial != delete_desc->serial) 2955 continue; 2956 2957 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2958 links); 2959 free(desc, M_CTL); 2960 delete_done = 1; 2961 } 2962 mtx_unlock(&lun->lun_lock); 2963 if (delete_done == 0) { 2964 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2965 "error serial %ju on LUN %u\n", __func__, 2966 delete_desc->serial, delete_desc->lun_id); 2967 retval = EINVAL; 2968 break; 2969 } 2970 break; 2971 } 2972 case CTL_DUMP_STRUCTS: { 2973 int i, j, k, idx; 2974 struct ctl_port *port; 2975 struct ctl_frontend *fe; 2976 2977 mtx_lock(&softc->ctl_lock); 2978 printf("CTL Persistent Reservation information start:\n"); 2979 for (i = 0; i < CTL_MAX_LUNS; i++) { 2980 struct ctl_lun *lun; 2981 2982 lun = softc->ctl_luns[i]; 2983 2984 if ((lun == NULL) 2985 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2986 continue; 2987 2988 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2989 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2990 idx = j * CTL_MAX_INIT_PER_PORT + k; 2991 if (lun->per_res[idx].registered == 0) 2992 continue; 2993 printf(" LUN %d port %d iid %d key " 2994 "%#jx\n", i, j, k, 2995 (uintmax_t)scsi_8btou64( 2996 lun->per_res[idx].res_key.key)); 2997 } 2998 } 2999 } 3000 printf("CTL Persistent Reservation information end\n"); 3001 printf("CTL Ports:\n"); 3002 STAILQ_FOREACH(port, &softc->port_list, links) { 3003 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3004 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3005 port->frontend->name, port->port_type, 3006 port->physical_port, port->virtual_port, 3007 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3008 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3009 if (port->wwpn_iid[j].in_use == 0 && 3010 port->wwpn_iid[j].wwpn == 0 && 3011 port->wwpn_iid[j].name == NULL) 3012 continue; 3013 3014 printf(" iid %u use %d WWPN %#jx '%s'\n", 3015 j, port->wwpn_iid[j].in_use, 3016 (uintmax_t)port->wwpn_iid[j].wwpn, 3017 port->wwpn_iid[j].name); 3018 } 3019 } 3020 printf("CTL Port information end\n"); 3021 mtx_unlock(&softc->ctl_lock); 3022 /* 3023 * XXX KDM calling this without a lock. We'd likely want 3024 * to drop the lock before calling the frontend's dump 3025 * routine anyway. 3026 */ 3027 printf("CTL Frontends:\n"); 3028 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3029 printf(" Frontend '%s'\n", fe->name); 3030 if (fe->fe_dump != NULL) 3031 fe->fe_dump(); 3032 } 3033 printf("CTL Frontend information end\n"); 3034 break; 3035 } 3036 case CTL_LUN_REQ: { 3037 struct ctl_lun_req *lun_req; 3038 struct ctl_backend_driver *backend; 3039 3040 lun_req = (struct ctl_lun_req *)addr; 3041 3042 backend = ctl_backend_find(lun_req->backend); 3043 if (backend == NULL) { 3044 lun_req->status = CTL_LUN_ERROR; 3045 snprintf(lun_req->error_str, 3046 sizeof(lun_req->error_str), 3047 "Backend \"%s\" not found.", 3048 lun_req->backend); 3049 break; 3050 } 3051 if (lun_req->num_be_args > 0) { 3052 lun_req->kern_be_args = ctl_copyin_args( 3053 lun_req->num_be_args, 3054 lun_req->be_args, 3055 lun_req->error_str, 3056 sizeof(lun_req->error_str)); 3057 if (lun_req->kern_be_args == NULL) { 3058 lun_req->status = CTL_LUN_ERROR; 3059 break; 3060 } 3061 } 3062 3063 retval = backend->ioctl(dev, cmd, addr, flag, td); 3064 3065 if (lun_req->num_be_args > 0) { 3066 ctl_copyout_args(lun_req->num_be_args, 3067 lun_req->kern_be_args); 3068 ctl_free_args(lun_req->num_be_args, 3069 lun_req->kern_be_args); 3070 } 3071 break; 3072 } 3073 case CTL_LUN_LIST: { 3074 struct sbuf *sb; 3075 struct ctl_lun *lun; 3076 struct ctl_lun_list *list; 3077 struct ctl_option *opt; 3078 3079 list = (struct ctl_lun_list *)addr; 3080 3081 /* 3082 * Allocate a fixed length sbuf here, based on the length 3083 * of the user's buffer. We could allocate an auto-extending 3084 * buffer, and then tell the user how much larger our 3085 * amount of data is than his buffer, but that presents 3086 * some problems: 3087 * 3088 * 1. The sbuf(9) routines use a blocking malloc, and so 3089 * we can't hold a lock while calling them with an 3090 * auto-extending buffer. 3091 * 3092 * 2. There is not currently a LUN reference counting 3093 * mechanism, outside of outstanding transactions on 3094 * the LUN's OOA queue. So a LUN could go away on us 3095 * while we're getting the LUN number, backend-specific 3096 * information, etc. Thus, given the way things 3097 * currently work, we need to hold the CTL lock while 3098 * grabbing LUN information. 3099 * 3100 * So, from the user's standpoint, the best thing to do is 3101 * allocate what he thinks is a reasonable buffer length, 3102 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3103 * double the buffer length and try again. (And repeat 3104 * that until he succeeds.) 3105 */ 3106 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3107 if (sb == NULL) { 3108 list->status = CTL_LUN_LIST_ERROR; 3109 snprintf(list->error_str, sizeof(list->error_str), 3110 "Unable to allocate %d bytes for LUN list", 3111 list->alloc_len); 3112 break; 3113 } 3114 3115 sbuf_printf(sb, "<ctllunlist>\n"); 3116 3117 mtx_lock(&softc->ctl_lock); 3118 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3119 mtx_lock(&lun->lun_lock); 3120 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3121 (uintmax_t)lun->lun); 3122 3123 /* 3124 * Bail out as soon as we see that we've overfilled 3125 * the buffer. 3126 */ 3127 if (retval != 0) 3128 break; 3129 3130 retval = sbuf_printf(sb, "\t<backend_type>%s" 3131 "</backend_type>\n", 3132 (lun->backend == NULL) ? "none" : 3133 lun->backend->name); 3134 3135 if (retval != 0) 3136 break; 3137 3138 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3139 lun->be_lun->lun_type); 3140 3141 if (retval != 0) 3142 break; 3143 3144 if (lun->backend == NULL) { 3145 retval = sbuf_printf(sb, "</lun>\n"); 3146 if (retval != 0) 3147 break; 3148 continue; 3149 } 3150 3151 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3152 (lun->be_lun->maxlba > 0) ? 3153 lun->be_lun->maxlba + 1 : 0); 3154 3155 if (retval != 0) 3156 break; 3157 3158 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3159 lun->be_lun->blocksize); 3160 3161 if (retval != 0) 3162 break; 3163 3164 retval = sbuf_printf(sb, "\t<serial_number>"); 3165 3166 if (retval != 0) 3167 break; 3168 3169 retval = ctl_sbuf_printf_esc(sb, 3170 lun->be_lun->serial_num); 3171 3172 if (retval != 0) 3173 break; 3174 3175 retval = sbuf_printf(sb, "</serial_number>\n"); 3176 3177 if (retval != 0) 3178 break; 3179 3180 retval = sbuf_printf(sb, "\t<device_id>"); 3181 3182 if (retval != 0) 3183 break; 3184 3185 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3186 3187 if (retval != 0) 3188 break; 3189 3190 retval = sbuf_printf(sb, "</device_id>\n"); 3191 3192 if (retval != 0) 3193 break; 3194 3195 if (lun->backend->lun_info != NULL) { 3196 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3197 if (retval != 0) 3198 break; 3199 } 3200 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3201 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3202 opt->name, opt->value, opt->name); 3203 if (retval != 0) 3204 break; 3205 } 3206 3207 retval = sbuf_printf(sb, "</lun>\n"); 3208 3209 if (retval != 0) 3210 break; 3211 mtx_unlock(&lun->lun_lock); 3212 } 3213 if (lun != NULL) 3214 mtx_unlock(&lun->lun_lock); 3215 mtx_unlock(&softc->ctl_lock); 3216 3217 if ((retval != 0) 3218 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3219 retval = 0; 3220 sbuf_delete(sb); 3221 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3222 snprintf(list->error_str, sizeof(list->error_str), 3223 "Out of space, %d bytes is too small", 3224 list->alloc_len); 3225 break; 3226 } 3227 3228 sbuf_finish(sb); 3229 3230 retval = copyout(sbuf_data(sb), list->lun_xml, 3231 sbuf_len(sb) + 1); 3232 3233 list->fill_len = sbuf_len(sb) + 1; 3234 list->status = CTL_LUN_LIST_OK; 3235 sbuf_delete(sb); 3236 break; 3237 } 3238 case CTL_ISCSI: { 3239 struct ctl_iscsi *ci; 3240 struct ctl_frontend *fe; 3241 3242 ci = (struct ctl_iscsi *)addr; 3243 3244 fe = ctl_frontend_find("iscsi"); 3245 if (fe == NULL) { 3246 ci->status = CTL_ISCSI_ERROR; 3247 snprintf(ci->error_str, sizeof(ci->error_str), 3248 "Frontend \"iscsi\" not found."); 3249 break; 3250 } 3251 3252 retval = fe->ioctl(dev, cmd, addr, flag, td); 3253 break; 3254 } 3255 case CTL_PORT_REQ: { 3256 struct ctl_req *req; 3257 struct ctl_frontend *fe; 3258 3259 req = (struct ctl_req *)addr; 3260 3261 fe = ctl_frontend_find(req->driver); 3262 if (fe == NULL) { 3263 req->status = CTL_LUN_ERROR; 3264 snprintf(req->error_str, sizeof(req->error_str), 3265 "Frontend \"%s\" not found.", req->driver); 3266 break; 3267 } 3268 if (req->num_args > 0) { 3269 req->kern_args = ctl_copyin_args(req->num_args, 3270 req->args, req->error_str, sizeof(req->error_str)); 3271 if (req->kern_args == NULL) { 3272 req->status = CTL_LUN_ERROR; 3273 break; 3274 } 3275 } 3276 3277 retval = fe->ioctl(dev, cmd, addr, flag, td); 3278 3279 if (req->num_args > 0) { 3280 ctl_copyout_args(req->num_args, req->kern_args); 3281 ctl_free_args(req->num_args, req->kern_args); 3282 } 3283 break; 3284 } 3285 case CTL_PORT_LIST: { 3286 struct sbuf *sb; 3287 struct ctl_port *port; 3288 struct ctl_lun_list *list; 3289 struct ctl_option *opt; 3290 3291 list = (struct ctl_lun_list *)addr; 3292 3293 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3294 if (sb == NULL) { 3295 list->status = CTL_LUN_LIST_ERROR; 3296 snprintf(list->error_str, sizeof(list->error_str), 3297 "Unable to allocate %d bytes for LUN list", 3298 list->alloc_len); 3299 break; 3300 } 3301 3302 sbuf_printf(sb, "<ctlportlist>\n"); 3303 3304 mtx_lock(&softc->ctl_lock); 3305 STAILQ_FOREACH(port, &softc->port_list, links) { 3306 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3307 (uintmax_t)port->targ_port); 3308 3309 /* 3310 * Bail out as soon as we see that we've overfilled 3311 * the buffer. 3312 */ 3313 if (retval != 0) 3314 break; 3315 3316 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3317 "</frontend_type>\n", port->frontend->name); 3318 if (retval != 0) 3319 break; 3320 3321 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3322 port->port_type); 3323 if (retval != 0) 3324 break; 3325 3326 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3327 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3328 if (retval != 0) 3329 break; 3330 3331 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3332 port->port_name); 3333 if (retval != 0) 3334 break; 3335 3336 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3337 port->physical_port); 3338 if (retval != 0) 3339 break; 3340 3341 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3342 port->virtual_port); 3343 if (retval != 0) 3344 break; 3345 3346 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3347 (uintmax_t)port->wwnn); 3348 if (retval != 0) 3349 break; 3350 3351 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3352 (uintmax_t)port->wwpn); 3353 if (retval != 0) 3354 break; 3355 3356 if (port->port_info != NULL) { 3357 retval = port->port_info(port->onoff_arg, sb); 3358 if (retval != 0) 3359 break; 3360 } 3361 STAILQ_FOREACH(opt, &port->options, links) { 3362 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3363 opt->name, opt->value, opt->name); 3364 if (retval != 0) 3365 break; 3366 } 3367 3368 retval = sbuf_printf(sb, "</targ_port>\n"); 3369 if (retval != 0) 3370 break; 3371 } 3372 mtx_unlock(&softc->ctl_lock); 3373 3374 if ((retval != 0) 3375 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3376 retval = 0; 3377 sbuf_delete(sb); 3378 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3379 snprintf(list->error_str, sizeof(list->error_str), 3380 "Out of space, %d bytes is too small", 3381 list->alloc_len); 3382 break; 3383 } 3384 3385 sbuf_finish(sb); 3386 3387 retval = copyout(sbuf_data(sb), list->lun_xml, 3388 sbuf_len(sb) + 1); 3389 3390 list->fill_len = sbuf_len(sb) + 1; 3391 list->status = CTL_LUN_LIST_OK; 3392 sbuf_delete(sb); 3393 break; 3394 } 3395 default: { 3396 /* XXX KDM should we fix this? */ 3397#if 0 3398 struct ctl_backend_driver *backend; 3399 unsigned int type; 3400 int found; 3401 3402 found = 0; 3403 3404 /* 3405 * We encode the backend type as the ioctl type for backend 3406 * ioctls. So parse it out here, and then search for a 3407 * backend of this type. 3408 */ 3409 type = _IOC_TYPE(cmd); 3410 3411 STAILQ_FOREACH(backend, &softc->be_list, links) { 3412 if (backend->type == type) { 3413 found = 1; 3414 break; 3415 } 3416 } 3417 if (found == 0) { 3418 printf("ctl: unknown ioctl command %#lx or backend " 3419 "%d\n", cmd, type); 3420 retval = EINVAL; 3421 break; 3422 } 3423 retval = backend->ioctl(dev, cmd, addr, flag, td); 3424#endif 3425 retval = ENOTTY; 3426 break; 3427 } 3428 } 3429 return (retval); 3430} 3431 3432uint32_t 3433ctl_get_initindex(struct ctl_nexus *nexus) 3434{ 3435 if (nexus->targ_port < CTL_MAX_PORTS) 3436 return (nexus->initid.id + 3437 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3438 else 3439 return (nexus->initid.id + 3440 ((nexus->targ_port - CTL_MAX_PORTS) * 3441 CTL_MAX_INIT_PER_PORT)); 3442} 3443 3444uint32_t 3445ctl_get_resindex(struct ctl_nexus *nexus) 3446{ 3447 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3448} 3449 3450uint32_t 3451ctl_port_idx(int port_num) 3452{ 3453 if (port_num < CTL_MAX_PORTS) 3454 return(port_num); 3455 else 3456 return(port_num - CTL_MAX_PORTS); 3457} 3458 3459static uint32_t 3460ctl_map_lun(int port_num, uint32_t lun_id) 3461{ 3462 struct ctl_port *port; 3463 3464 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3465 if (port == NULL) 3466 return (UINT32_MAX); 3467 if (port->lun_map == NULL) 3468 return (lun_id); 3469 return (port->lun_map(port->targ_lun_arg, lun_id)); 3470} 3471 3472static uint32_t 3473ctl_map_lun_back(int port_num, uint32_t lun_id) 3474{ 3475 struct ctl_port *port; 3476 uint32_t i; 3477 3478 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3479 if (port->lun_map == NULL) 3480 return (lun_id); 3481 for (i = 0; i < CTL_MAX_LUNS; i++) { 3482 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3483 return (i); 3484 } 3485 return (UINT32_MAX); 3486} 3487 3488/* 3489 * Note: This only works for bitmask sizes that are at least 32 bits, and 3490 * that are a power of 2. 3491 */ 3492int 3493ctl_ffz(uint32_t *mask, uint32_t size) 3494{ 3495 uint32_t num_chunks, num_pieces; 3496 int i, j; 3497 3498 num_chunks = (size >> 5); 3499 if (num_chunks == 0) 3500 num_chunks++; 3501 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3502 3503 for (i = 0; i < num_chunks; i++) { 3504 for (j = 0; j < num_pieces; j++) { 3505 if ((mask[i] & (1 << j)) == 0) 3506 return ((i << 5) + j); 3507 } 3508 } 3509 3510 return (-1); 3511} 3512 3513int 3514ctl_set_mask(uint32_t *mask, uint32_t bit) 3515{ 3516 uint32_t chunk, piece; 3517 3518 chunk = bit >> 5; 3519 piece = bit % (sizeof(uint32_t) * 8); 3520 3521 if ((mask[chunk] & (1 << piece)) != 0) 3522 return (-1); 3523 else 3524 mask[chunk] |= (1 << piece); 3525 3526 return (0); 3527} 3528 3529int 3530ctl_clear_mask(uint32_t *mask, uint32_t bit) 3531{ 3532 uint32_t chunk, piece; 3533 3534 chunk = bit >> 5; 3535 piece = bit % (sizeof(uint32_t) * 8); 3536 3537 if ((mask[chunk] & (1 << piece)) == 0) 3538 return (-1); 3539 else 3540 mask[chunk] &= ~(1 << piece); 3541 3542 return (0); 3543} 3544 3545int 3546ctl_is_set(uint32_t *mask, uint32_t bit) 3547{ 3548 uint32_t chunk, piece; 3549 3550 chunk = bit >> 5; 3551 piece = bit % (sizeof(uint32_t) * 8); 3552 3553 if ((mask[chunk] & (1 << piece)) == 0) 3554 return (0); 3555 else 3556 return (1); 3557} 3558 3559#ifdef unused 3560/* 3561 * The bus, target and lun are optional, they can be filled in later. 3562 * can_wait is used to determine whether we can wait on the malloc or not. 3563 */ 3564union ctl_io* 3565ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3566 uint32_t targ_lun, int can_wait) 3567{ 3568 union ctl_io *io; 3569 3570 if (can_wait) 3571 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3572 else 3573 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3574 3575 if (io != NULL) { 3576 io->io_hdr.io_type = io_type; 3577 io->io_hdr.targ_port = targ_port; 3578 /* 3579 * XXX KDM this needs to change/go away. We need to move 3580 * to a preallocated pool of ctl_scsiio structures. 3581 */ 3582 io->io_hdr.nexus.targ_target.id = targ_target; 3583 io->io_hdr.nexus.targ_lun = targ_lun; 3584 } 3585 3586 return (io); 3587} 3588 3589void 3590ctl_kfree_io(union ctl_io *io) 3591{ 3592 free(io, M_CTL); 3593} 3594#endif /* unused */ 3595 3596/* 3597 * ctl_softc, pool_type, total_ctl_io are passed in. 3598 * npool is passed out. 3599 */ 3600int 3601ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3602 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3603{ 3604 uint32_t i; 3605 union ctl_io *cur_io, *next_io; 3606 struct ctl_io_pool *pool; 3607 int retval; 3608 3609 retval = 0; 3610 3611 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3612 M_NOWAIT | M_ZERO); 3613 if (pool == NULL) { 3614 retval = ENOMEM; 3615 goto bailout; 3616 } 3617 3618 pool->type = pool_type; 3619 pool->ctl_softc = ctl_softc; 3620 3621 mtx_lock(&ctl_softc->pool_lock); 3622 pool->id = ctl_softc->cur_pool_id++; 3623 mtx_unlock(&ctl_softc->pool_lock); 3624 3625 pool->flags = CTL_POOL_FLAG_NONE; 3626 pool->refcount = 1; /* Reference for validity. */ 3627 STAILQ_INIT(&pool->free_queue); 3628 3629 /* 3630 * XXX KDM other options here: 3631 * - allocate a page at a time 3632 * - allocate one big chunk of memory. 3633 * Page allocation might work well, but would take a little more 3634 * tracking. 3635 */ 3636 for (i = 0; i < total_ctl_io; i++) { 3637 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3638 M_NOWAIT); 3639 if (cur_io == NULL) { 3640 retval = ENOMEM; 3641 break; 3642 } 3643 cur_io->io_hdr.pool = pool; 3644 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3645 pool->total_ctl_io++; 3646 pool->free_ctl_io++; 3647 } 3648 3649 if (retval != 0) { 3650 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3651 cur_io != NULL; cur_io = next_io) { 3652 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3653 links); 3654 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3655 ctl_io_hdr, links); 3656 free(cur_io, M_CTLIO); 3657 } 3658 3659 free(pool, M_CTL); 3660 goto bailout; 3661 } 3662 mtx_lock(&ctl_softc->pool_lock); 3663 ctl_softc->num_pools++; 3664 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3665 /* 3666 * Increment our usage count if this is an external consumer, so we 3667 * can't get unloaded until the external consumer (most likely a 3668 * FETD) unloads and frees his pool. 3669 * 3670 * XXX KDM will this increment the caller's module use count, or 3671 * mine? 3672 */ 3673#if 0 3674 if ((pool_type != CTL_POOL_EMERGENCY) 3675 && (pool_type != CTL_POOL_INTERNAL) 3676 && (pool_type != CTL_POOL_4OTHERSC)) 3677 MOD_INC_USE_COUNT; 3678#endif 3679 3680 mtx_unlock(&ctl_softc->pool_lock); 3681 3682 *npool = pool; 3683 3684bailout: 3685 3686 return (retval); 3687} 3688 3689static int 3690ctl_pool_acquire(struct ctl_io_pool *pool) 3691{ 3692 3693 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3694 3695 if (pool->flags & CTL_POOL_FLAG_INVALID) 3696 return (EINVAL); 3697 3698 pool->refcount++; 3699 3700 return (0); 3701} 3702 3703static void 3704ctl_pool_release(struct ctl_io_pool *pool) 3705{ 3706 struct ctl_softc *ctl_softc = pool->ctl_softc; 3707 union ctl_io *io; 3708 3709 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3710 3711 if (--pool->refcount != 0) 3712 return; 3713 3714 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3715 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3716 links); 3717 free(io, M_CTLIO); 3718 } 3719 3720 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3721 ctl_softc->num_pools--; 3722 3723 /* 3724 * XXX KDM will this decrement the caller's usage count or mine? 3725 */ 3726#if 0 3727 if ((pool->type != CTL_POOL_EMERGENCY) 3728 && (pool->type != CTL_POOL_INTERNAL) 3729 && (pool->type != CTL_POOL_4OTHERSC)) 3730 MOD_DEC_USE_COUNT; 3731#endif 3732 3733 free(pool, M_CTL); 3734} 3735 3736void 3737ctl_pool_free(struct ctl_io_pool *pool) 3738{ 3739 struct ctl_softc *ctl_softc; 3740 3741 if (pool == NULL) 3742 return; 3743 3744 ctl_softc = pool->ctl_softc; 3745 mtx_lock(&ctl_softc->pool_lock); 3746 pool->flags |= CTL_POOL_FLAG_INVALID; 3747 ctl_pool_release(pool); 3748 mtx_unlock(&ctl_softc->pool_lock); 3749} 3750 3751/* 3752 * This routine does not block (except for spinlocks of course). 3753 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3754 * possible. 3755 */ 3756union ctl_io * 3757ctl_alloc_io(void *pool_ref) 3758{ 3759 union ctl_io *io; 3760 struct ctl_softc *ctl_softc; 3761 struct ctl_io_pool *pool, *npool; 3762 struct ctl_io_pool *emergency_pool; 3763 3764 pool = (struct ctl_io_pool *)pool_ref; 3765 3766 if (pool == NULL) { 3767 printf("%s: pool is NULL\n", __func__); 3768 return (NULL); 3769 } 3770 3771 emergency_pool = NULL; 3772 3773 ctl_softc = pool->ctl_softc; 3774 3775 mtx_lock(&ctl_softc->pool_lock); 3776 /* 3777 * First, try to get the io structure from the user's pool. 3778 */ 3779 if (ctl_pool_acquire(pool) == 0) { 3780 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3781 if (io != NULL) { 3782 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3783 pool->total_allocated++; 3784 pool->free_ctl_io--; 3785 mtx_unlock(&ctl_softc->pool_lock); 3786 return (io); 3787 } else 3788 ctl_pool_release(pool); 3789 } 3790 /* 3791 * If he doesn't have any io structures left, search for an 3792 * emergency pool and grab one from there. 3793 */ 3794 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3795 if (npool->type != CTL_POOL_EMERGENCY) 3796 continue; 3797 3798 if (ctl_pool_acquire(npool) != 0) 3799 continue; 3800 3801 emergency_pool = npool; 3802 3803 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3804 if (io != NULL) { 3805 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3806 npool->total_allocated++; 3807 npool->free_ctl_io--; 3808 mtx_unlock(&ctl_softc->pool_lock); 3809 return (io); 3810 } else 3811 ctl_pool_release(npool); 3812 } 3813 3814 /* Drop the spinlock before we malloc */ 3815 mtx_unlock(&ctl_softc->pool_lock); 3816 3817 /* 3818 * The emergency pool (if it exists) didn't have one, so try an 3819 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3820 */ 3821 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3822 if (io != NULL) { 3823 /* 3824 * If the emergency pool exists but is empty, add this 3825 * ctl_io to its list when it gets freed. 3826 */ 3827 if (emergency_pool != NULL) { 3828 mtx_lock(&ctl_softc->pool_lock); 3829 if (ctl_pool_acquire(emergency_pool) == 0) { 3830 io->io_hdr.pool = emergency_pool; 3831 emergency_pool->total_ctl_io++; 3832 /* 3833 * Need to bump this, otherwise 3834 * total_allocated and total_freed won't 3835 * match when we no longer have anything 3836 * outstanding. 3837 */ 3838 emergency_pool->total_allocated++; 3839 } 3840 mtx_unlock(&ctl_softc->pool_lock); 3841 } else 3842 io->io_hdr.pool = NULL; 3843 } 3844 3845 return (io); 3846} 3847 3848void 3849ctl_free_io(union ctl_io *io) 3850{ 3851 if (io == NULL) 3852 return; 3853 3854 /* 3855 * If this ctl_io has a pool, return it to that pool. 3856 */ 3857 if (io->io_hdr.pool != NULL) { 3858 struct ctl_io_pool *pool; 3859 3860 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3861 mtx_lock(&pool->ctl_softc->pool_lock); 3862 io->io_hdr.io_type = 0xff; 3863 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3864 pool->total_freed++; 3865 pool->free_ctl_io++; 3866 ctl_pool_release(pool); 3867 mtx_unlock(&pool->ctl_softc->pool_lock); 3868 } else { 3869 /* 3870 * Otherwise, just free it. We probably malloced it and 3871 * the emergency pool wasn't available. 3872 */ 3873 free(io, M_CTLIO); 3874 } 3875 3876} 3877 3878void 3879ctl_zero_io(union ctl_io *io) 3880{ 3881 void *pool_ref; 3882 3883 if (io == NULL) 3884 return; 3885 3886 /* 3887 * May need to preserve linked list pointers at some point too. 3888 */ 3889 pool_ref = io->io_hdr.pool; 3890 3891 memset(io, 0, sizeof(*io)); 3892 3893 io->io_hdr.pool = pool_ref; 3894} 3895 3896/* 3897 * This routine is currently used for internal copies of ctl_ios that need 3898 * to persist for some reason after we've already returned status to the 3899 * FETD. (Thus the flag set.) 3900 * 3901 * XXX XXX 3902 * Note that this makes a blind copy of all fields in the ctl_io, except 3903 * for the pool reference. This includes any memory that has been 3904 * allocated! That memory will no longer be valid after done has been 3905 * called, so this would be VERY DANGEROUS for command that actually does 3906 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3907 * start and stop commands, which don't transfer any data, so this is not a 3908 * problem. If it is used for anything else, the caller would also need to 3909 * allocate data buffer space and this routine would need to be modified to 3910 * copy the data buffer(s) as well. 3911 */ 3912void 3913ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3914{ 3915 void *pool_ref; 3916 3917 if ((src == NULL) 3918 || (dest == NULL)) 3919 return; 3920 3921 /* 3922 * May need to preserve linked list pointers at some point too. 3923 */ 3924 pool_ref = dest->io_hdr.pool; 3925 3926 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3927 3928 dest->io_hdr.pool = pool_ref; 3929 /* 3930 * We need to know that this is an internal copy, and doesn't need 3931 * to get passed back to the FETD that allocated it. 3932 */ 3933 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3934} 3935 3936#ifdef NEEDTOPORT 3937static void 3938ctl_update_power_subpage(struct copan_power_subpage *page) 3939{ 3940 int num_luns, num_partitions, config_type; 3941 struct ctl_softc *softc; 3942 cs_BOOL_t aor_present, shelf_50pct_power; 3943 cs_raidset_personality_t rs_type; 3944 int max_active_luns; 3945 3946 softc = control_softc; 3947 3948 /* subtract out the processor LUN */ 3949 num_luns = softc->num_luns - 1; 3950 /* 3951 * Default to 7 LUNs active, which was the only number we allowed 3952 * in the past. 3953 */ 3954 max_active_luns = 7; 3955 3956 num_partitions = config_GetRsPartitionInfo(); 3957 config_type = config_GetConfigType(); 3958 shelf_50pct_power = config_GetShelfPowerMode(); 3959 aor_present = config_IsAorRsPresent(); 3960 3961 rs_type = ddb_GetRsRaidType(1); 3962 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3963 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3964 EPRINT(0, "Unsupported RS type %d!", rs_type); 3965 } 3966 3967 3968 page->total_luns = num_luns; 3969 3970 switch (config_type) { 3971 case 40: 3972 /* 3973 * In a 40 drive configuration, it doesn't matter what DC 3974 * cards we have, whether we have AOR enabled or not, 3975 * partitioning or not, or what type of RAIDset we have. 3976 * In that scenario, we can power up every LUN we present 3977 * to the user. 3978 */ 3979 max_active_luns = num_luns; 3980 3981 break; 3982 case 64: 3983 if (shelf_50pct_power == CS_FALSE) { 3984 /* 25% power */ 3985 if (aor_present == CS_TRUE) { 3986 if (rs_type == 3987 CS_RAIDSET_PERSONALITY_RAID5) { 3988 max_active_luns = 7; 3989 } else if (rs_type == 3990 CS_RAIDSET_PERSONALITY_RAID1){ 3991 max_active_luns = 14; 3992 } else { 3993 /* XXX KDM now what?? */ 3994 } 3995 } else { 3996 if (rs_type == 3997 CS_RAIDSET_PERSONALITY_RAID5) { 3998 max_active_luns = 8; 3999 } else if (rs_type == 4000 CS_RAIDSET_PERSONALITY_RAID1){ 4001 max_active_luns = 16; 4002 } else { 4003 /* XXX KDM now what?? */ 4004 } 4005 } 4006 } else { 4007 /* 50% power */ 4008 /* 4009 * With 50% power in a 64 drive configuration, we 4010 * can power all LUNs we present. 4011 */ 4012 max_active_luns = num_luns; 4013 } 4014 break; 4015 case 112: 4016 if (shelf_50pct_power == CS_FALSE) { 4017 /* 25% power */ 4018 if (aor_present == CS_TRUE) { 4019 if (rs_type == 4020 CS_RAIDSET_PERSONALITY_RAID5) { 4021 max_active_luns = 7; 4022 } else if (rs_type == 4023 CS_RAIDSET_PERSONALITY_RAID1){ 4024 max_active_luns = 14; 4025 } else { 4026 /* XXX KDM now what?? */ 4027 } 4028 } else { 4029 if (rs_type == 4030 CS_RAIDSET_PERSONALITY_RAID5) { 4031 max_active_luns = 8; 4032 } else if (rs_type == 4033 CS_RAIDSET_PERSONALITY_RAID1){ 4034 max_active_luns = 16; 4035 } else { 4036 /* XXX KDM now what?? */ 4037 } 4038 } 4039 } else { 4040 /* 50% power */ 4041 if (aor_present == CS_TRUE) { 4042 if (rs_type == 4043 CS_RAIDSET_PERSONALITY_RAID5) { 4044 max_active_luns = 14; 4045 } else if (rs_type == 4046 CS_RAIDSET_PERSONALITY_RAID1){ 4047 /* 4048 * We're assuming here that disk 4049 * caching is enabled, and so we're 4050 * able to power up half of each 4051 * LUN, and cache all writes. 4052 */ 4053 max_active_luns = num_luns; 4054 } else { 4055 /* XXX KDM now what?? */ 4056 } 4057 } else { 4058 if (rs_type == 4059 CS_RAIDSET_PERSONALITY_RAID5) { 4060 max_active_luns = 15; 4061 } else if (rs_type == 4062 CS_RAIDSET_PERSONALITY_RAID1){ 4063 max_active_luns = 30; 4064 } else { 4065 /* XXX KDM now what?? */ 4066 } 4067 } 4068 } 4069 break; 4070 default: 4071 /* 4072 * In this case, we have an unknown configuration, so we 4073 * just use the default from above. 4074 */ 4075 break; 4076 } 4077 4078 page->max_active_luns = max_active_luns; 4079#if 0 4080 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4081 page->total_luns, page->max_active_luns); 4082#endif 4083} 4084#endif /* NEEDTOPORT */ 4085 4086/* 4087 * This routine could be used in the future to load default and/or saved 4088 * mode page parameters for a particuar lun. 4089 */ 4090static int 4091ctl_init_page_index(struct ctl_lun *lun) 4092{ 4093 int i; 4094 struct ctl_page_index *page_index; 4095 struct ctl_softc *softc; 4096 4097 memcpy(&lun->mode_pages.index, page_index_template, 4098 sizeof(page_index_template)); 4099 4100 softc = lun->ctl_softc; 4101 4102 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4103 4104 page_index = &lun->mode_pages.index[i]; 4105 /* 4106 * If this is a disk-only mode page, there's no point in 4107 * setting it up. For some pages, we have to have some 4108 * basic information about the disk in order to calculate the 4109 * mode page data. 4110 */ 4111 if ((lun->be_lun->lun_type != T_DIRECT) 4112 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4113 continue; 4114 4115 switch (page_index->page_code & SMPH_PC_MASK) { 4116 case SMS_FORMAT_DEVICE_PAGE: { 4117 struct scsi_format_page *format_page; 4118 4119 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4120 panic("subpage is incorrect!"); 4121 4122 /* 4123 * Sectors per track are set above. Bytes per 4124 * sector need to be set here on a per-LUN basis. 4125 */ 4126 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4127 &format_page_default, 4128 sizeof(format_page_default)); 4129 memcpy(&lun->mode_pages.format_page[ 4130 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4131 sizeof(format_page_changeable)); 4132 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4133 &format_page_default, 4134 sizeof(format_page_default)); 4135 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4136 &format_page_default, 4137 sizeof(format_page_default)); 4138 4139 format_page = &lun->mode_pages.format_page[ 4140 CTL_PAGE_CURRENT]; 4141 scsi_ulto2b(lun->be_lun->blocksize, 4142 format_page->bytes_per_sector); 4143 4144 format_page = &lun->mode_pages.format_page[ 4145 CTL_PAGE_DEFAULT]; 4146 scsi_ulto2b(lun->be_lun->blocksize, 4147 format_page->bytes_per_sector); 4148 4149 format_page = &lun->mode_pages.format_page[ 4150 CTL_PAGE_SAVED]; 4151 scsi_ulto2b(lun->be_lun->blocksize, 4152 format_page->bytes_per_sector); 4153 4154 page_index->page_data = 4155 (uint8_t *)lun->mode_pages.format_page; 4156 break; 4157 } 4158 case SMS_RIGID_DISK_PAGE: { 4159 struct scsi_rigid_disk_page *rigid_disk_page; 4160 uint32_t sectors_per_cylinder; 4161 uint64_t cylinders; 4162#ifndef __XSCALE__ 4163 int shift; 4164#endif /* !__XSCALE__ */ 4165 4166 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4167 panic("invalid subpage value %d", 4168 page_index->subpage); 4169 4170 /* 4171 * Rotation rate and sectors per track are set 4172 * above. We calculate the cylinders here based on 4173 * capacity. Due to the number of heads and 4174 * sectors per track we're using, smaller arrays 4175 * may turn out to have 0 cylinders. Linux and 4176 * FreeBSD don't pay attention to these mode pages 4177 * to figure out capacity, but Solaris does. It 4178 * seems to deal with 0 cylinders just fine, and 4179 * works out a fake geometry based on the capacity. 4180 */ 4181 memcpy(&lun->mode_pages.rigid_disk_page[ 4182 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4183 sizeof(rigid_disk_page_default)); 4184 memcpy(&lun->mode_pages.rigid_disk_page[ 4185 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4186 sizeof(rigid_disk_page_changeable)); 4187 memcpy(&lun->mode_pages.rigid_disk_page[ 4188 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4189 sizeof(rigid_disk_page_default)); 4190 memcpy(&lun->mode_pages.rigid_disk_page[ 4191 CTL_PAGE_SAVED], &rigid_disk_page_default, 4192 sizeof(rigid_disk_page_default)); 4193 4194 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4195 CTL_DEFAULT_HEADS; 4196 4197 /* 4198 * The divide method here will be more accurate, 4199 * probably, but results in floating point being 4200 * used in the kernel on i386 (__udivdi3()). On the 4201 * XScale, though, __udivdi3() is implemented in 4202 * software. 4203 * 4204 * The shift method for cylinder calculation is 4205 * accurate if sectors_per_cylinder is a power of 4206 * 2. Otherwise it might be slightly off -- you 4207 * might have a bit of a truncation problem. 4208 */ 4209#ifdef __XSCALE__ 4210 cylinders = (lun->be_lun->maxlba + 1) / 4211 sectors_per_cylinder; 4212#else 4213 for (shift = 31; shift > 0; shift--) { 4214 if (sectors_per_cylinder & (1 << shift)) 4215 break; 4216 } 4217 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4218#endif 4219 4220 /* 4221 * We've basically got 3 bytes, or 24 bits for the 4222 * cylinder size in the mode page. If we're over, 4223 * just round down to 2^24. 4224 */ 4225 if (cylinders > 0xffffff) 4226 cylinders = 0xffffff; 4227 4228 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4229 CTL_PAGE_CURRENT]; 4230 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4231 4232 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4233 CTL_PAGE_DEFAULT]; 4234 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4235 4236 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4237 CTL_PAGE_SAVED]; 4238 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4239 4240 page_index->page_data = 4241 (uint8_t *)lun->mode_pages.rigid_disk_page; 4242 break; 4243 } 4244 case SMS_CACHING_PAGE: { 4245 4246 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4247 panic("invalid subpage value %d", 4248 page_index->subpage); 4249 /* 4250 * Defaults should be okay here, no calculations 4251 * needed. 4252 */ 4253 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4254 &caching_page_default, 4255 sizeof(caching_page_default)); 4256 memcpy(&lun->mode_pages.caching_page[ 4257 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4258 sizeof(caching_page_changeable)); 4259 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4260 &caching_page_default, 4261 sizeof(caching_page_default)); 4262 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4263 &caching_page_default, 4264 sizeof(caching_page_default)); 4265 page_index->page_data = 4266 (uint8_t *)lun->mode_pages.caching_page; 4267 break; 4268 } 4269 case SMS_CONTROL_MODE_PAGE: { 4270 4271 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4272 panic("invalid subpage value %d", 4273 page_index->subpage); 4274 4275 /* 4276 * Defaults should be okay here, no calculations 4277 * needed. 4278 */ 4279 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4280 &control_page_default, 4281 sizeof(control_page_default)); 4282 memcpy(&lun->mode_pages.control_page[ 4283 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4284 sizeof(control_page_changeable)); 4285 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4286 &control_page_default, 4287 sizeof(control_page_default)); 4288 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4289 &control_page_default, 4290 sizeof(control_page_default)); 4291 page_index->page_data = 4292 (uint8_t *)lun->mode_pages.control_page; 4293 break; 4294 4295 } 4296 case SMS_VENDOR_SPECIFIC_PAGE:{ 4297 switch (page_index->subpage) { 4298 case PWR_SUBPAGE_CODE: { 4299 struct copan_power_subpage *current_page, 4300 *saved_page; 4301 4302 memcpy(&lun->mode_pages.power_subpage[ 4303 CTL_PAGE_CURRENT], 4304 &power_page_default, 4305 sizeof(power_page_default)); 4306 memcpy(&lun->mode_pages.power_subpage[ 4307 CTL_PAGE_CHANGEABLE], 4308 &power_page_changeable, 4309 sizeof(power_page_changeable)); 4310 memcpy(&lun->mode_pages.power_subpage[ 4311 CTL_PAGE_DEFAULT], 4312 &power_page_default, 4313 sizeof(power_page_default)); 4314 memcpy(&lun->mode_pages.power_subpage[ 4315 CTL_PAGE_SAVED], 4316 &power_page_default, 4317 sizeof(power_page_default)); 4318 page_index->page_data = 4319 (uint8_t *)lun->mode_pages.power_subpage; 4320 4321 current_page = (struct copan_power_subpage *) 4322 (page_index->page_data + 4323 (page_index->page_len * 4324 CTL_PAGE_CURRENT)); 4325 saved_page = (struct copan_power_subpage *) 4326 (page_index->page_data + 4327 (page_index->page_len * 4328 CTL_PAGE_SAVED)); 4329 break; 4330 } 4331 case APS_SUBPAGE_CODE: { 4332 struct copan_aps_subpage *current_page, 4333 *saved_page; 4334 4335 // This gets set multiple times but 4336 // it should always be the same. It's 4337 // only done during init so who cares. 4338 index_to_aps_page = i; 4339 4340 memcpy(&lun->mode_pages.aps_subpage[ 4341 CTL_PAGE_CURRENT], 4342 &aps_page_default, 4343 sizeof(aps_page_default)); 4344 memcpy(&lun->mode_pages.aps_subpage[ 4345 CTL_PAGE_CHANGEABLE], 4346 &aps_page_changeable, 4347 sizeof(aps_page_changeable)); 4348 memcpy(&lun->mode_pages.aps_subpage[ 4349 CTL_PAGE_DEFAULT], 4350 &aps_page_default, 4351 sizeof(aps_page_default)); 4352 memcpy(&lun->mode_pages.aps_subpage[ 4353 CTL_PAGE_SAVED], 4354 &aps_page_default, 4355 sizeof(aps_page_default)); 4356 page_index->page_data = 4357 (uint8_t *)lun->mode_pages.aps_subpage; 4358 4359 current_page = (struct copan_aps_subpage *) 4360 (page_index->page_data + 4361 (page_index->page_len * 4362 CTL_PAGE_CURRENT)); 4363 saved_page = (struct copan_aps_subpage *) 4364 (page_index->page_data + 4365 (page_index->page_len * 4366 CTL_PAGE_SAVED)); 4367 break; 4368 } 4369 case DBGCNF_SUBPAGE_CODE: { 4370 struct copan_debugconf_subpage *current_page, 4371 *saved_page; 4372 4373 memcpy(&lun->mode_pages.debugconf_subpage[ 4374 CTL_PAGE_CURRENT], 4375 &debugconf_page_default, 4376 sizeof(debugconf_page_default)); 4377 memcpy(&lun->mode_pages.debugconf_subpage[ 4378 CTL_PAGE_CHANGEABLE], 4379 &debugconf_page_changeable, 4380 sizeof(debugconf_page_changeable)); 4381 memcpy(&lun->mode_pages.debugconf_subpage[ 4382 CTL_PAGE_DEFAULT], 4383 &debugconf_page_default, 4384 sizeof(debugconf_page_default)); 4385 memcpy(&lun->mode_pages.debugconf_subpage[ 4386 CTL_PAGE_SAVED], 4387 &debugconf_page_default, 4388 sizeof(debugconf_page_default)); 4389 page_index->page_data = 4390 (uint8_t *)lun->mode_pages.debugconf_subpage; 4391 4392 current_page = (struct copan_debugconf_subpage *) 4393 (page_index->page_data + 4394 (page_index->page_len * 4395 CTL_PAGE_CURRENT)); 4396 saved_page = (struct copan_debugconf_subpage *) 4397 (page_index->page_data + 4398 (page_index->page_len * 4399 CTL_PAGE_SAVED)); 4400 break; 4401 } 4402 default: 4403 panic("invalid subpage value %d", 4404 page_index->subpage); 4405 break; 4406 } 4407 break; 4408 } 4409 default: 4410 panic("invalid page value %d", 4411 page_index->page_code & SMPH_PC_MASK); 4412 break; 4413 } 4414 } 4415 4416 return (CTL_RETVAL_COMPLETE); 4417} 4418 4419/* 4420 * LUN allocation. 4421 * 4422 * Requirements: 4423 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4424 * wants us to allocate the LUN and he can block. 4425 * - ctl_softc is always set 4426 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4427 * 4428 * Returns 0 for success, non-zero (errno) for failure. 4429 */ 4430static int 4431ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4432 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4433{ 4434 struct ctl_lun *nlun, *lun; 4435 struct ctl_port *port; 4436 struct scsi_vpd_id_descriptor *desc; 4437 struct scsi_vpd_id_t10 *t10id; 4438 const char *eui, *naa, *scsiname, *vendor; 4439 int lun_number, i, lun_malloced; 4440 int devidlen, idlen1, idlen2 = 0, len; 4441 4442 if (be_lun == NULL) 4443 return (EINVAL); 4444 4445 /* 4446 * We currently only support Direct Access or Processor LUN types. 4447 */ 4448 switch (be_lun->lun_type) { 4449 case T_DIRECT: 4450 break; 4451 case T_PROCESSOR: 4452 break; 4453 case T_SEQUENTIAL: 4454 case T_CHANGER: 4455 default: 4456 be_lun->lun_config_status(be_lun->be_lun, 4457 CTL_LUN_CONFIG_FAILURE); 4458 break; 4459 } 4460 if (ctl_lun == NULL) { 4461 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4462 lun_malloced = 1; 4463 } else { 4464 lun_malloced = 0; 4465 lun = ctl_lun; 4466 } 4467 4468 memset(lun, 0, sizeof(*lun)); 4469 if (lun_malloced) 4470 lun->flags = CTL_LUN_MALLOCED; 4471 4472 /* Generate LUN ID. */ 4473 devidlen = max(CTL_DEVID_MIN_LEN, 4474 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4475 idlen1 = sizeof(*t10id) + devidlen; 4476 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4477 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4478 if (scsiname != NULL) { 4479 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4480 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4481 } 4482 eui = ctl_get_opt(&be_lun->options, "eui"); 4483 if (eui != NULL) { 4484 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4485 } 4486 naa = ctl_get_opt(&be_lun->options, "naa"); 4487 if (naa != NULL) { 4488 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4489 } 4490 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4491 M_CTL, M_WAITOK | M_ZERO); 4492 lun->lun_devid->len = len; 4493 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4494 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4495 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4496 desc->length = idlen1; 4497 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4498 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4499 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4500 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4501 } else { 4502 strncpy(t10id->vendor, vendor, 4503 min(sizeof(t10id->vendor), strlen(vendor))); 4504 } 4505 strncpy((char *)t10id->vendor_spec_id, 4506 (char *)be_lun->device_id, devidlen); 4507 if (scsiname != NULL) { 4508 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4509 desc->length); 4510 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4511 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4512 SVPD_ID_TYPE_SCSI_NAME; 4513 desc->length = idlen2; 4514 strlcpy(desc->identifier, scsiname, idlen2); 4515 } 4516 if (eui != NULL) { 4517 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4518 desc->length); 4519 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4520 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4521 SVPD_ID_TYPE_EUI64; 4522 desc->length = 8; 4523 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4524 } 4525 if (naa != NULL) { 4526 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4527 desc->length); 4528 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4529 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4530 SVPD_ID_TYPE_NAA; 4531 desc->length = 8; 4532 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4533 } 4534 4535 mtx_lock(&ctl_softc->ctl_lock); 4536 /* 4537 * See if the caller requested a particular LUN number. If so, see 4538 * if it is available. Otherwise, allocate the first available LUN. 4539 */ 4540 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4541 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4542 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4543 mtx_unlock(&ctl_softc->ctl_lock); 4544 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4545 printf("ctl: requested LUN ID %d is higher " 4546 "than CTL_MAX_LUNS - 1 (%d)\n", 4547 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4548 } else { 4549 /* 4550 * XXX KDM return an error, or just assign 4551 * another LUN ID in this case?? 4552 */ 4553 printf("ctl: requested LUN ID %d is already " 4554 "in use\n", be_lun->req_lun_id); 4555 } 4556 if (lun->flags & CTL_LUN_MALLOCED) 4557 free(lun, M_CTL); 4558 be_lun->lun_config_status(be_lun->be_lun, 4559 CTL_LUN_CONFIG_FAILURE); 4560 return (ENOSPC); 4561 } 4562 lun_number = be_lun->req_lun_id; 4563 } else { 4564 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4565 if (lun_number == -1) { 4566 mtx_unlock(&ctl_softc->ctl_lock); 4567 printf("ctl: can't allocate LUN on target %ju, out of " 4568 "LUNs\n", (uintmax_t)target_id.id); 4569 if (lun->flags & CTL_LUN_MALLOCED) 4570 free(lun, M_CTL); 4571 be_lun->lun_config_status(be_lun->be_lun, 4572 CTL_LUN_CONFIG_FAILURE); 4573 return (ENOSPC); 4574 } 4575 } 4576 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4577 4578 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4579 lun->target = target_id; 4580 lun->lun = lun_number; 4581 lun->be_lun = be_lun; 4582 /* 4583 * The processor LUN is always enabled. Disk LUNs come on line 4584 * disabled, and must be enabled by the backend. 4585 */ 4586 lun->flags |= CTL_LUN_DISABLED; 4587 lun->backend = be_lun->be; 4588 be_lun->ctl_lun = lun; 4589 be_lun->lun_id = lun_number; 4590 atomic_add_int(&be_lun->be->num_luns, 1); 4591 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4592 lun->flags |= CTL_LUN_STOPPED; 4593 4594 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4595 lun->flags |= CTL_LUN_INOPERABLE; 4596 4597 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4598 lun->flags |= CTL_LUN_PRIMARY_SC; 4599 4600 lun->ctl_softc = ctl_softc; 4601 TAILQ_INIT(&lun->ooa_queue); 4602 TAILQ_INIT(&lun->blocked_queue); 4603 STAILQ_INIT(&lun->error_list); 4604 ctl_tpc_lun_init(lun); 4605 4606 /* 4607 * Initialize the mode page index. 4608 */ 4609 ctl_init_page_index(lun); 4610 4611 /* 4612 * Set the poweron UA for all initiators on this LUN only. 4613 */ 4614 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4615 lun->pending_ua[i] = CTL_UA_POWERON; 4616 4617 /* 4618 * Now, before we insert this lun on the lun list, set the lun 4619 * inventory changed UA for all other luns. 4620 */ 4621 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4622 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4623 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4624 } 4625 } 4626 4627 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4628 4629 ctl_softc->ctl_luns[lun_number] = lun; 4630 4631 ctl_softc->num_luns++; 4632 4633 /* Setup statistics gathering */ 4634 lun->stats.device_type = be_lun->lun_type; 4635 lun->stats.lun_number = lun_number; 4636 if (lun->stats.device_type == T_DIRECT) 4637 lun->stats.blocksize = be_lun->blocksize; 4638 else 4639 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4640 for (i = 0;i < CTL_MAX_PORTS;i++) 4641 lun->stats.ports[i].targ_port = i; 4642 4643 mtx_unlock(&ctl_softc->ctl_lock); 4644 4645 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4646 4647 /* 4648 * Run through each registered FETD and bring it online if it isn't 4649 * already. Enable the target ID if it hasn't been enabled, and 4650 * enable this particular LUN. 4651 */ 4652 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4653 int retval; 4654 4655 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4656 if (retval != 0) { 4657 printf("ctl_alloc_lun: FETD %s port %d returned error " 4658 "%d for lun_enable on target %ju lun %d\n", 4659 port->port_name, port->targ_port, retval, 4660 (uintmax_t)target_id.id, lun_number); 4661 } else 4662 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4663 } 4664 return (0); 4665} 4666 4667/* 4668 * Delete a LUN. 4669 * Assumptions: 4670 * - LUN has already been marked invalid and any pending I/O has been taken 4671 * care of. 4672 */ 4673static int 4674ctl_free_lun(struct ctl_lun *lun) 4675{ 4676 struct ctl_softc *softc; 4677#if 0 4678 struct ctl_port *port; 4679#endif 4680 struct ctl_lun *nlun; 4681 int i; 4682 4683 softc = lun->ctl_softc; 4684 4685 mtx_assert(&softc->ctl_lock, MA_OWNED); 4686 4687 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4688 4689 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4690 4691 softc->ctl_luns[lun->lun] = NULL; 4692 4693 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4694 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4695 4696 softc->num_luns--; 4697 4698 /* 4699 * XXX KDM this scheme only works for a single target/multiple LUN 4700 * setup. It needs to be revamped for a multiple target scheme. 4701 * 4702 * XXX KDM this results in port->lun_disable() getting called twice, 4703 * once when ctl_disable_lun() is called, and a second time here. 4704 * We really need to re-think the LUN disable semantics. There 4705 * should probably be several steps/levels to LUN removal: 4706 * - disable 4707 * - invalidate 4708 * - free 4709 * 4710 * Right now we only have a disable method when communicating to 4711 * the front end ports, at least for individual LUNs. 4712 */ 4713#if 0 4714 STAILQ_FOREACH(port, &softc->port_list, links) { 4715 int retval; 4716 4717 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4718 lun->lun); 4719 if (retval != 0) { 4720 printf("ctl_free_lun: FETD %s port %d returned error " 4721 "%d for lun_disable on target %ju lun %jd\n", 4722 port->port_name, port->targ_port, retval, 4723 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4724 } 4725 4726 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4727 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4728 4729 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4730 if (retval != 0) { 4731 printf("ctl_free_lun: FETD %s port %d " 4732 "returned error %d for targ_disable on " 4733 "target %ju\n", port->port_name, 4734 port->targ_port, retval, 4735 (uintmax_t)lun->target.id); 4736 } else 4737 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4738 4739 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4740 continue; 4741 4742#if 0 4743 port->port_offline(port->onoff_arg); 4744 port->status &= ~CTL_PORT_STATUS_ONLINE; 4745#endif 4746 } 4747 } 4748#endif 4749 4750 /* 4751 * Tell the backend to free resources, if this LUN has a backend. 4752 */ 4753 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4754 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4755 4756 ctl_tpc_lun_shutdown(lun); 4757 mtx_destroy(&lun->lun_lock); 4758 free(lun->lun_devid, M_CTL); 4759 if (lun->flags & CTL_LUN_MALLOCED) 4760 free(lun, M_CTL); 4761 4762 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4763 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4764 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4765 } 4766 } 4767 4768 return (0); 4769} 4770 4771static void 4772ctl_create_lun(struct ctl_be_lun *be_lun) 4773{ 4774 struct ctl_softc *ctl_softc; 4775 4776 ctl_softc = control_softc; 4777 4778 /* 4779 * ctl_alloc_lun() should handle all potential failure cases. 4780 */ 4781 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4782} 4783 4784int 4785ctl_add_lun(struct ctl_be_lun *be_lun) 4786{ 4787 struct ctl_softc *ctl_softc = control_softc; 4788 4789 mtx_lock(&ctl_softc->ctl_lock); 4790 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4791 mtx_unlock(&ctl_softc->ctl_lock); 4792 wakeup(&ctl_softc->pending_lun_queue); 4793 4794 return (0); 4795} 4796 4797int 4798ctl_enable_lun(struct ctl_be_lun *be_lun) 4799{ 4800 struct ctl_softc *ctl_softc; 4801 struct ctl_port *port, *nport; 4802 struct ctl_lun *lun; 4803 int retval; 4804 4805 ctl_softc = control_softc; 4806 4807 lun = (struct ctl_lun *)be_lun->ctl_lun; 4808 4809 mtx_lock(&ctl_softc->ctl_lock); 4810 mtx_lock(&lun->lun_lock); 4811 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4812 /* 4813 * eh? Why did we get called if the LUN is already 4814 * enabled? 4815 */ 4816 mtx_unlock(&lun->lun_lock); 4817 mtx_unlock(&ctl_softc->ctl_lock); 4818 return (0); 4819 } 4820 lun->flags &= ~CTL_LUN_DISABLED; 4821 mtx_unlock(&lun->lun_lock); 4822 4823 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4824 nport = STAILQ_NEXT(port, links); 4825 4826 /* 4827 * Drop the lock while we call the FETD's enable routine. 4828 * This can lead to a callback into CTL (at least in the 4829 * case of the internal initiator frontend. 4830 */ 4831 mtx_unlock(&ctl_softc->ctl_lock); 4832 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4833 mtx_lock(&ctl_softc->ctl_lock); 4834 if (retval != 0) { 4835 printf("%s: FETD %s port %d returned error " 4836 "%d for lun_enable on target %ju lun %jd\n", 4837 __func__, port->port_name, port->targ_port, retval, 4838 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4839 } 4840#if 0 4841 else { 4842 /* NOTE: TODO: why does lun enable affect port status? */ 4843 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4844 } 4845#endif 4846 } 4847 4848 mtx_unlock(&ctl_softc->ctl_lock); 4849 4850 return (0); 4851} 4852 4853int 4854ctl_disable_lun(struct ctl_be_lun *be_lun) 4855{ 4856 struct ctl_softc *ctl_softc; 4857 struct ctl_port *port; 4858 struct ctl_lun *lun; 4859 int retval; 4860 4861 ctl_softc = control_softc; 4862 4863 lun = (struct ctl_lun *)be_lun->ctl_lun; 4864 4865 mtx_lock(&ctl_softc->ctl_lock); 4866 mtx_lock(&lun->lun_lock); 4867 if (lun->flags & CTL_LUN_DISABLED) { 4868 mtx_unlock(&lun->lun_lock); 4869 mtx_unlock(&ctl_softc->ctl_lock); 4870 return (0); 4871 } 4872 lun->flags |= CTL_LUN_DISABLED; 4873 mtx_unlock(&lun->lun_lock); 4874 4875 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4876 mtx_unlock(&ctl_softc->ctl_lock); 4877 /* 4878 * Drop the lock before we call the frontend's disable 4879 * routine, to avoid lock order reversals. 4880 * 4881 * XXX KDM what happens if the frontend list changes while 4882 * we're traversing it? It's unlikely, but should be handled. 4883 */ 4884 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4885 lun->lun); 4886 mtx_lock(&ctl_softc->ctl_lock); 4887 if (retval != 0) { 4888 printf("ctl_alloc_lun: FETD %s port %d returned error " 4889 "%d for lun_disable on target %ju lun %jd\n", 4890 port->port_name, port->targ_port, retval, 4891 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4892 } 4893 } 4894 4895 mtx_unlock(&ctl_softc->ctl_lock); 4896 4897 return (0); 4898} 4899 4900int 4901ctl_start_lun(struct ctl_be_lun *be_lun) 4902{ 4903 struct ctl_softc *ctl_softc; 4904 struct ctl_lun *lun; 4905 4906 ctl_softc = control_softc; 4907 4908 lun = (struct ctl_lun *)be_lun->ctl_lun; 4909 4910 mtx_lock(&lun->lun_lock); 4911 lun->flags &= ~CTL_LUN_STOPPED; 4912 mtx_unlock(&lun->lun_lock); 4913 4914 return (0); 4915} 4916 4917int 4918ctl_stop_lun(struct ctl_be_lun *be_lun) 4919{ 4920 struct ctl_softc *ctl_softc; 4921 struct ctl_lun *lun; 4922 4923 ctl_softc = control_softc; 4924 4925 lun = (struct ctl_lun *)be_lun->ctl_lun; 4926 4927 mtx_lock(&lun->lun_lock); 4928 lun->flags |= CTL_LUN_STOPPED; 4929 mtx_unlock(&lun->lun_lock); 4930 4931 return (0); 4932} 4933 4934int 4935ctl_lun_offline(struct ctl_be_lun *be_lun) 4936{ 4937 struct ctl_softc *ctl_softc; 4938 struct ctl_lun *lun; 4939 4940 ctl_softc = control_softc; 4941 4942 lun = (struct ctl_lun *)be_lun->ctl_lun; 4943 4944 mtx_lock(&lun->lun_lock); 4945 lun->flags |= CTL_LUN_OFFLINE; 4946 mtx_unlock(&lun->lun_lock); 4947 4948 return (0); 4949} 4950 4951int 4952ctl_lun_online(struct ctl_be_lun *be_lun) 4953{ 4954 struct ctl_softc *ctl_softc; 4955 struct ctl_lun *lun; 4956 4957 ctl_softc = control_softc; 4958 4959 lun = (struct ctl_lun *)be_lun->ctl_lun; 4960 4961 mtx_lock(&lun->lun_lock); 4962 lun->flags &= ~CTL_LUN_OFFLINE; 4963 mtx_unlock(&lun->lun_lock); 4964 4965 return (0); 4966} 4967 4968int 4969ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4970{ 4971 struct ctl_softc *ctl_softc; 4972 struct ctl_lun *lun; 4973 4974 ctl_softc = control_softc; 4975 4976 lun = (struct ctl_lun *)be_lun->ctl_lun; 4977 4978 mtx_lock(&lun->lun_lock); 4979 4980 /* 4981 * The LUN needs to be disabled before it can be marked invalid. 4982 */ 4983 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4984 mtx_unlock(&lun->lun_lock); 4985 return (-1); 4986 } 4987 /* 4988 * Mark the LUN invalid. 4989 */ 4990 lun->flags |= CTL_LUN_INVALID; 4991 4992 /* 4993 * If there is nothing in the OOA queue, go ahead and free the LUN. 4994 * If we have something in the OOA queue, we'll free it when the 4995 * last I/O completes. 4996 */ 4997 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4998 mtx_unlock(&lun->lun_lock); 4999 mtx_lock(&ctl_softc->ctl_lock); 5000 ctl_free_lun(lun); 5001 mtx_unlock(&ctl_softc->ctl_lock); 5002 } else 5003 mtx_unlock(&lun->lun_lock); 5004 5005 return (0); 5006} 5007 5008int 5009ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5010{ 5011 struct ctl_softc *ctl_softc; 5012 struct ctl_lun *lun; 5013 5014 ctl_softc = control_softc; 5015 lun = (struct ctl_lun *)be_lun->ctl_lun; 5016 5017 mtx_lock(&lun->lun_lock); 5018 lun->flags |= CTL_LUN_INOPERABLE; 5019 mtx_unlock(&lun->lun_lock); 5020 5021 return (0); 5022} 5023 5024int 5025ctl_lun_operable(struct ctl_be_lun *be_lun) 5026{ 5027 struct ctl_softc *ctl_softc; 5028 struct ctl_lun *lun; 5029 5030 ctl_softc = control_softc; 5031 lun = (struct ctl_lun *)be_lun->ctl_lun; 5032 5033 mtx_lock(&lun->lun_lock); 5034 lun->flags &= ~CTL_LUN_INOPERABLE; 5035 mtx_unlock(&lun->lun_lock); 5036 5037 return (0); 5038} 5039 5040int 5041ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5042 int lock) 5043{ 5044 struct ctl_softc *softc; 5045 struct ctl_lun *lun; 5046 struct copan_aps_subpage *current_sp; 5047 struct ctl_page_index *page_index; 5048 int i; 5049 5050 softc = control_softc; 5051 5052 mtx_lock(&softc->ctl_lock); 5053 5054 lun = (struct ctl_lun *)be_lun->ctl_lun; 5055 mtx_lock(&lun->lun_lock); 5056 5057 page_index = NULL; 5058 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5059 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5060 APS_PAGE_CODE) 5061 continue; 5062 5063 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5064 continue; 5065 page_index = &lun->mode_pages.index[i]; 5066 } 5067 5068 if (page_index == NULL) { 5069 mtx_unlock(&lun->lun_lock); 5070 mtx_unlock(&softc->ctl_lock); 5071 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5072 (uintmax_t)lun->lun); 5073 return (1); 5074 } 5075#if 0 5076 if ((softc->aps_locked_lun != 0) 5077 && (softc->aps_locked_lun != lun->lun)) { 5078 printf("%s: attempt to lock LUN %llu when %llu is already " 5079 "locked\n"); 5080 mtx_unlock(&lun->lun_lock); 5081 mtx_unlock(&softc->ctl_lock); 5082 return (1); 5083 } 5084#endif 5085 5086 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5087 (page_index->page_len * CTL_PAGE_CURRENT)); 5088 5089 if (lock != 0) { 5090 current_sp->lock_active = APS_LOCK_ACTIVE; 5091 softc->aps_locked_lun = lun->lun; 5092 } else { 5093 current_sp->lock_active = 0; 5094 softc->aps_locked_lun = 0; 5095 } 5096 5097 5098 /* 5099 * If we're in HA mode, try to send the lock message to the other 5100 * side. 5101 */ 5102 if (ctl_is_single == 0) { 5103 int isc_retval; 5104 union ctl_ha_msg lock_msg; 5105 5106 lock_msg.hdr.nexus = *nexus; 5107 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5108 if (lock != 0) 5109 lock_msg.aps.lock_flag = 1; 5110 else 5111 lock_msg.aps.lock_flag = 0; 5112 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5113 sizeof(lock_msg), 0); 5114 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5115 printf("%s: APS (lock=%d) error returned from " 5116 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5117 mtx_unlock(&lun->lun_lock); 5118 mtx_unlock(&softc->ctl_lock); 5119 return (1); 5120 } 5121 } 5122 5123 mtx_unlock(&lun->lun_lock); 5124 mtx_unlock(&softc->ctl_lock); 5125 5126 return (0); 5127} 5128 5129void 5130ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5131{ 5132 struct ctl_lun *lun; 5133 struct ctl_softc *softc; 5134 int i; 5135 5136 softc = control_softc; 5137 5138 lun = (struct ctl_lun *)be_lun->ctl_lun; 5139 5140 mtx_lock(&lun->lun_lock); 5141 5142 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5143 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5144 5145 mtx_unlock(&lun->lun_lock); 5146} 5147 5148/* 5149 * Backend "memory move is complete" callback for requests that never 5150 * make it down to say RAIDCore's configuration code. 5151 */ 5152int 5153ctl_config_move_done(union ctl_io *io) 5154{ 5155 int retval; 5156 5157 retval = CTL_RETVAL_COMPLETE; 5158 5159 5160 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5161 /* 5162 * XXX KDM this shouldn't happen, but what if it does? 5163 */ 5164 if (io->io_hdr.io_type != CTL_IO_SCSI) 5165 panic("I/O type isn't CTL_IO_SCSI!"); 5166 5167 if ((io->io_hdr.port_status == 0) 5168 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5169 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5170 io->io_hdr.status = CTL_SUCCESS; 5171 else if ((io->io_hdr.port_status != 0) 5172 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5173 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5174 /* 5175 * For hardware error sense keys, the sense key 5176 * specific value is defined to be a retry count, 5177 * but we use it to pass back an internal FETD 5178 * error code. XXX KDM Hopefully the FETD is only 5179 * using 16 bits for an error code, since that's 5180 * all the space we have in the sks field. 5181 */ 5182 ctl_set_internal_failure(&io->scsiio, 5183 /*sks_valid*/ 1, 5184 /*retry_count*/ 5185 io->io_hdr.port_status); 5186 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5187 free(io->scsiio.kern_data_ptr, M_CTL); 5188 ctl_done(io); 5189 goto bailout; 5190 } 5191 5192 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5193 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5194 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5195 /* 5196 * XXX KDM just assuming a single pointer here, and not a 5197 * S/G list. If we start using S/G lists for config data, 5198 * we'll need to know how to clean them up here as well. 5199 */ 5200 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5201 free(io->scsiio.kern_data_ptr, M_CTL); 5202 /* Hopefully the user has already set the status... */ 5203 ctl_done(io); 5204 } else { 5205 /* 5206 * XXX KDM now we need to continue data movement. Some 5207 * options: 5208 * - call ctl_scsiio() again? We don't do this for data 5209 * writes, because for those at least we know ahead of 5210 * time where the write will go and how long it is. For 5211 * config writes, though, that information is largely 5212 * contained within the write itself, thus we need to 5213 * parse out the data again. 5214 * 5215 * - Call some other function once the data is in? 5216 */ 5217 5218 /* 5219 * XXX KDM call ctl_scsiio() again for now, and check flag 5220 * bits to see whether we're allocated or not. 5221 */ 5222 retval = ctl_scsiio(&io->scsiio); 5223 } 5224bailout: 5225 return (retval); 5226} 5227 5228/* 5229 * This gets called by a backend driver when it is done with a 5230 * data_submit method. 5231 */ 5232void 5233ctl_data_submit_done(union ctl_io *io) 5234{ 5235 /* 5236 * If the IO_CONT flag is set, we need to call the supplied 5237 * function to continue processing the I/O, instead of completing 5238 * the I/O just yet. 5239 * 5240 * If there is an error, though, we don't want to keep processing. 5241 * Instead, just send status back to the initiator. 5242 */ 5243 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5244 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5245 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5246 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5247 io->scsiio.io_cont(io); 5248 return; 5249 } 5250 ctl_done(io); 5251} 5252 5253/* 5254 * This gets called by a backend driver when it is done with a 5255 * configuration write. 5256 */ 5257void 5258ctl_config_write_done(union ctl_io *io) 5259{ 5260 /* 5261 * If the IO_CONT flag is set, we need to call the supplied 5262 * function to continue processing the I/O, instead of completing 5263 * the I/O just yet. 5264 * 5265 * If there is an error, though, we don't want to keep processing. 5266 * Instead, just send status back to the initiator. 5267 */ 5268 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5269 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5270 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5271 io->scsiio.io_cont(io); 5272 return; 5273 } 5274 /* 5275 * Since a configuration write can be done for commands that actually 5276 * have data allocated, like write buffer, and commands that have 5277 * no data, like start/stop unit, we need to check here. 5278 */ 5279 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5280 free(io->scsiio.kern_data_ptr, M_CTL); 5281 ctl_done(io); 5282} 5283 5284/* 5285 * SCSI release command. 5286 */ 5287int 5288ctl_scsi_release(struct ctl_scsiio *ctsio) 5289{ 5290 int length, longid, thirdparty_id, resv_id; 5291 struct ctl_softc *ctl_softc; 5292 struct ctl_lun *lun; 5293 5294 length = 0; 5295 resv_id = 0; 5296 5297 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5298 5299 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5300 ctl_softc = control_softc; 5301 5302 switch (ctsio->cdb[0]) { 5303 case RELEASE_10: { 5304 struct scsi_release_10 *cdb; 5305 5306 cdb = (struct scsi_release_10 *)ctsio->cdb; 5307 5308 if (cdb->byte2 & SR10_LONGID) 5309 longid = 1; 5310 else 5311 thirdparty_id = cdb->thirdparty_id; 5312 5313 resv_id = cdb->resv_id; 5314 length = scsi_2btoul(cdb->length); 5315 break; 5316 } 5317 } 5318 5319 5320 /* 5321 * XXX KDM right now, we only support LUN reservation. We don't 5322 * support 3rd party reservations, or extent reservations, which 5323 * might actually need the parameter list. If we've gotten this 5324 * far, we've got a LUN reservation. Anything else got kicked out 5325 * above. So, according to SPC, ignore the length. 5326 */ 5327 length = 0; 5328 5329 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5330 && (length > 0)) { 5331 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5332 ctsio->kern_data_len = length; 5333 ctsio->kern_total_len = length; 5334 ctsio->kern_data_resid = 0; 5335 ctsio->kern_rel_offset = 0; 5336 ctsio->kern_sg_entries = 0; 5337 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5338 ctsio->be_move_done = ctl_config_move_done; 5339 ctl_datamove((union ctl_io *)ctsio); 5340 5341 return (CTL_RETVAL_COMPLETE); 5342 } 5343 5344 if (length > 0) 5345 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5346 5347 mtx_lock(&lun->lun_lock); 5348 5349 /* 5350 * According to SPC, it is not an error for an intiator to attempt 5351 * to release a reservation on a LUN that isn't reserved, or that 5352 * is reserved by another initiator. The reservation can only be 5353 * released, though, by the initiator who made it or by one of 5354 * several reset type events. 5355 */ 5356 if (lun->flags & CTL_LUN_RESERVED) { 5357 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5358 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5359 && (ctsio->io_hdr.nexus.targ_target.id == 5360 lun->rsv_nexus.targ_target.id)) { 5361 lun->flags &= ~CTL_LUN_RESERVED; 5362 } 5363 } 5364 5365 mtx_unlock(&lun->lun_lock); 5366 5367 ctsio->scsi_status = SCSI_STATUS_OK; 5368 ctsio->io_hdr.status = CTL_SUCCESS; 5369 5370 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5371 free(ctsio->kern_data_ptr, M_CTL); 5372 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5373 } 5374 5375 ctl_done((union ctl_io *)ctsio); 5376 return (CTL_RETVAL_COMPLETE); 5377} 5378 5379int 5380ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5381{ 5382 int extent, thirdparty, longid; 5383 int resv_id, length; 5384 uint64_t thirdparty_id; 5385 struct ctl_softc *ctl_softc; 5386 struct ctl_lun *lun; 5387 5388 extent = 0; 5389 thirdparty = 0; 5390 longid = 0; 5391 resv_id = 0; 5392 length = 0; 5393 thirdparty_id = 0; 5394 5395 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5396 5397 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5398 ctl_softc = control_softc; 5399 5400 switch (ctsio->cdb[0]) { 5401 case RESERVE_10: { 5402 struct scsi_reserve_10 *cdb; 5403 5404 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5405 5406 if (cdb->byte2 & SR10_LONGID) 5407 longid = 1; 5408 else 5409 thirdparty_id = cdb->thirdparty_id; 5410 5411 resv_id = cdb->resv_id; 5412 length = scsi_2btoul(cdb->length); 5413 break; 5414 } 5415 } 5416 5417 /* 5418 * XXX KDM right now, we only support LUN reservation. We don't 5419 * support 3rd party reservations, or extent reservations, which 5420 * might actually need the parameter list. If we've gotten this 5421 * far, we've got a LUN reservation. Anything else got kicked out 5422 * above. So, according to SPC, ignore the length. 5423 */ 5424 length = 0; 5425 5426 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5427 && (length > 0)) { 5428 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5429 ctsio->kern_data_len = length; 5430 ctsio->kern_total_len = length; 5431 ctsio->kern_data_resid = 0; 5432 ctsio->kern_rel_offset = 0; 5433 ctsio->kern_sg_entries = 0; 5434 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5435 ctsio->be_move_done = ctl_config_move_done; 5436 ctl_datamove((union ctl_io *)ctsio); 5437 5438 return (CTL_RETVAL_COMPLETE); 5439 } 5440 5441 if (length > 0) 5442 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5443 5444 mtx_lock(&lun->lun_lock); 5445 if (lun->flags & CTL_LUN_RESERVED) { 5446 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5447 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5448 || (ctsio->io_hdr.nexus.targ_target.id != 5449 lun->rsv_nexus.targ_target.id)) { 5450 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5451 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5452 goto bailout; 5453 } 5454 } 5455 5456 lun->flags |= CTL_LUN_RESERVED; 5457 lun->rsv_nexus = ctsio->io_hdr.nexus; 5458 5459 ctsio->scsi_status = SCSI_STATUS_OK; 5460 ctsio->io_hdr.status = CTL_SUCCESS; 5461 5462bailout: 5463 mtx_unlock(&lun->lun_lock); 5464 5465 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5466 free(ctsio->kern_data_ptr, M_CTL); 5467 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5468 } 5469 5470 ctl_done((union ctl_io *)ctsio); 5471 return (CTL_RETVAL_COMPLETE); 5472} 5473 5474int 5475ctl_start_stop(struct ctl_scsiio *ctsio) 5476{ 5477 struct scsi_start_stop_unit *cdb; 5478 struct ctl_lun *lun; 5479 struct ctl_softc *ctl_softc; 5480 int retval; 5481 5482 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5483 5484 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5485 ctl_softc = control_softc; 5486 retval = 0; 5487 5488 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5489 5490 /* 5491 * XXX KDM 5492 * We don't support the immediate bit on a stop unit. In order to 5493 * do that, we would need to code up a way to know that a stop is 5494 * pending, and hold off any new commands until it completes, one 5495 * way or another. Then we could accept or reject those commands 5496 * depending on its status. We would almost need to do the reverse 5497 * of what we do below for an immediate start -- return the copy of 5498 * the ctl_io to the FETD with status to send to the host (and to 5499 * free the copy!) and then free the original I/O once the stop 5500 * actually completes. That way, the OOA queue mechanism can work 5501 * to block commands that shouldn't proceed. Another alternative 5502 * would be to put the copy in the queue in place of the original, 5503 * and return the original back to the caller. That could be 5504 * slightly safer.. 5505 */ 5506 if ((cdb->byte2 & SSS_IMMED) 5507 && ((cdb->how & SSS_START) == 0)) { 5508 ctl_set_invalid_field(ctsio, 5509 /*sks_valid*/ 1, 5510 /*command*/ 1, 5511 /*field*/ 1, 5512 /*bit_valid*/ 1, 5513 /*bit*/ 0); 5514 ctl_done((union ctl_io *)ctsio); 5515 return (CTL_RETVAL_COMPLETE); 5516 } 5517 5518 if ((lun->flags & CTL_LUN_PR_RESERVED) 5519 && ((cdb->how & SSS_START)==0)) { 5520 uint32_t residx; 5521 5522 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5523 if (!lun->per_res[residx].registered 5524 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5525 5526 ctl_set_reservation_conflict(ctsio); 5527 ctl_done((union ctl_io *)ctsio); 5528 return (CTL_RETVAL_COMPLETE); 5529 } 5530 } 5531 5532 /* 5533 * If there is no backend on this device, we can't start or stop 5534 * it. In theory we shouldn't get any start/stop commands in the 5535 * first place at this level if the LUN doesn't have a backend. 5536 * That should get stopped by the command decode code. 5537 */ 5538 if (lun->backend == NULL) { 5539 ctl_set_invalid_opcode(ctsio); 5540 ctl_done((union ctl_io *)ctsio); 5541 return (CTL_RETVAL_COMPLETE); 5542 } 5543 5544 /* 5545 * XXX KDM Copan-specific offline behavior. 5546 * Figure out a reasonable way to port this? 5547 */ 5548#ifdef NEEDTOPORT 5549 mtx_lock(&lun->lun_lock); 5550 5551 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5552 && (lun->flags & CTL_LUN_OFFLINE)) { 5553 /* 5554 * If the LUN is offline, and the on/offline bit isn't set, 5555 * reject the start or stop. Otherwise, let it through. 5556 */ 5557 mtx_unlock(&lun->lun_lock); 5558 ctl_set_lun_not_ready(ctsio); 5559 ctl_done((union ctl_io *)ctsio); 5560 } else { 5561 mtx_unlock(&lun->lun_lock); 5562#endif /* NEEDTOPORT */ 5563 /* 5564 * This could be a start or a stop when we're online, 5565 * or a stop/offline or start/online. A start or stop when 5566 * we're offline is covered in the case above. 5567 */ 5568 /* 5569 * In the non-immediate case, we send the request to 5570 * the backend and return status to the user when 5571 * it is done. 5572 * 5573 * In the immediate case, we allocate a new ctl_io 5574 * to hold a copy of the request, and send that to 5575 * the backend. We then set good status on the 5576 * user's request and return it immediately. 5577 */ 5578 if (cdb->byte2 & SSS_IMMED) { 5579 union ctl_io *new_io; 5580 5581 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5582 if (new_io == NULL) { 5583 ctl_set_busy(ctsio); 5584 ctl_done((union ctl_io *)ctsio); 5585 } else { 5586 ctl_copy_io((union ctl_io *)ctsio, 5587 new_io); 5588 retval = lun->backend->config_write(new_io); 5589 ctl_set_success(ctsio); 5590 ctl_done((union ctl_io *)ctsio); 5591 } 5592 } else { 5593 retval = lun->backend->config_write( 5594 (union ctl_io *)ctsio); 5595 } 5596#ifdef NEEDTOPORT 5597 } 5598#endif 5599 return (retval); 5600} 5601 5602/* 5603 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5604 * we don't really do anything with the LBA and length fields if the user 5605 * passes them in. Instead we'll just flush out the cache for the entire 5606 * LUN. 5607 */ 5608int 5609ctl_sync_cache(struct ctl_scsiio *ctsio) 5610{ 5611 struct ctl_lun *lun; 5612 struct ctl_softc *ctl_softc; 5613 uint64_t starting_lba; 5614 uint32_t block_count; 5615 int retval; 5616 5617 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5618 5619 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5620 ctl_softc = control_softc; 5621 retval = 0; 5622 5623 switch (ctsio->cdb[0]) { 5624 case SYNCHRONIZE_CACHE: { 5625 struct scsi_sync_cache *cdb; 5626 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5627 5628 starting_lba = scsi_4btoul(cdb->begin_lba); 5629 block_count = scsi_2btoul(cdb->lb_count); 5630 break; 5631 } 5632 case SYNCHRONIZE_CACHE_16: { 5633 struct scsi_sync_cache_16 *cdb; 5634 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5635 5636 starting_lba = scsi_8btou64(cdb->begin_lba); 5637 block_count = scsi_4btoul(cdb->lb_count); 5638 break; 5639 } 5640 default: 5641 ctl_set_invalid_opcode(ctsio); 5642 ctl_done((union ctl_io *)ctsio); 5643 goto bailout; 5644 break; /* NOTREACHED */ 5645 } 5646 5647 /* 5648 * We check the LBA and length, but don't do anything with them. 5649 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5650 * get flushed. This check will just help satisfy anyone who wants 5651 * to see an error for an out of range LBA. 5652 */ 5653 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5654 ctl_set_lba_out_of_range(ctsio); 5655 ctl_done((union ctl_io *)ctsio); 5656 goto bailout; 5657 } 5658 5659 /* 5660 * If this LUN has no backend, we can't flush the cache anyway. 5661 */ 5662 if (lun->backend == NULL) { 5663 ctl_set_invalid_opcode(ctsio); 5664 ctl_done((union ctl_io *)ctsio); 5665 goto bailout; 5666 } 5667 5668 /* 5669 * Check to see whether we're configured to send the SYNCHRONIZE 5670 * CACHE command directly to the back end. 5671 */ 5672 mtx_lock(&lun->lun_lock); 5673 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5674 && (++(lun->sync_count) >= lun->sync_interval)) { 5675 lun->sync_count = 0; 5676 mtx_unlock(&lun->lun_lock); 5677 retval = lun->backend->config_write((union ctl_io *)ctsio); 5678 } else { 5679 mtx_unlock(&lun->lun_lock); 5680 ctl_set_success(ctsio); 5681 ctl_done((union ctl_io *)ctsio); 5682 } 5683 5684bailout: 5685 5686 return (retval); 5687} 5688 5689int 5690ctl_format(struct ctl_scsiio *ctsio) 5691{ 5692 struct scsi_format *cdb; 5693 struct ctl_lun *lun; 5694 struct ctl_softc *ctl_softc; 5695 int length, defect_list_len; 5696 5697 CTL_DEBUG_PRINT(("ctl_format\n")); 5698 5699 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5700 ctl_softc = control_softc; 5701 5702 cdb = (struct scsi_format *)ctsio->cdb; 5703 5704 length = 0; 5705 if (cdb->byte2 & SF_FMTDATA) { 5706 if (cdb->byte2 & SF_LONGLIST) 5707 length = sizeof(struct scsi_format_header_long); 5708 else 5709 length = sizeof(struct scsi_format_header_short); 5710 } 5711 5712 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5713 && (length > 0)) { 5714 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5715 ctsio->kern_data_len = length; 5716 ctsio->kern_total_len = length; 5717 ctsio->kern_data_resid = 0; 5718 ctsio->kern_rel_offset = 0; 5719 ctsio->kern_sg_entries = 0; 5720 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5721 ctsio->be_move_done = ctl_config_move_done; 5722 ctl_datamove((union ctl_io *)ctsio); 5723 5724 return (CTL_RETVAL_COMPLETE); 5725 } 5726 5727 defect_list_len = 0; 5728 5729 if (cdb->byte2 & SF_FMTDATA) { 5730 if (cdb->byte2 & SF_LONGLIST) { 5731 struct scsi_format_header_long *header; 5732 5733 header = (struct scsi_format_header_long *) 5734 ctsio->kern_data_ptr; 5735 5736 defect_list_len = scsi_4btoul(header->defect_list_len); 5737 if (defect_list_len != 0) { 5738 ctl_set_invalid_field(ctsio, 5739 /*sks_valid*/ 1, 5740 /*command*/ 0, 5741 /*field*/ 2, 5742 /*bit_valid*/ 0, 5743 /*bit*/ 0); 5744 goto bailout; 5745 } 5746 } else { 5747 struct scsi_format_header_short *header; 5748 5749 header = (struct scsi_format_header_short *) 5750 ctsio->kern_data_ptr; 5751 5752 defect_list_len = scsi_2btoul(header->defect_list_len); 5753 if (defect_list_len != 0) { 5754 ctl_set_invalid_field(ctsio, 5755 /*sks_valid*/ 1, 5756 /*command*/ 0, 5757 /*field*/ 2, 5758 /*bit_valid*/ 0, 5759 /*bit*/ 0); 5760 goto bailout; 5761 } 5762 } 5763 } 5764 5765 /* 5766 * The format command will clear out the "Medium format corrupted" 5767 * status if set by the configuration code. That status is really 5768 * just a way to notify the host that we have lost the media, and 5769 * get them to issue a command that will basically make them think 5770 * they're blowing away the media. 5771 */ 5772 mtx_lock(&lun->lun_lock); 5773 lun->flags &= ~CTL_LUN_INOPERABLE; 5774 mtx_unlock(&lun->lun_lock); 5775 5776 ctsio->scsi_status = SCSI_STATUS_OK; 5777 ctsio->io_hdr.status = CTL_SUCCESS; 5778bailout: 5779 5780 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5781 free(ctsio->kern_data_ptr, M_CTL); 5782 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5783 } 5784 5785 ctl_done((union ctl_io *)ctsio); 5786 return (CTL_RETVAL_COMPLETE); 5787} 5788 5789int 5790ctl_read_buffer(struct ctl_scsiio *ctsio) 5791{ 5792 struct scsi_read_buffer *cdb; 5793 struct ctl_lun *lun; 5794 int buffer_offset, len; 5795 static uint8_t descr[4]; 5796 static uint8_t echo_descr[4] = { 0 }; 5797 5798 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5799 5800 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5801 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5802 5803 if (lun->flags & CTL_LUN_PR_RESERVED) { 5804 uint32_t residx; 5805 5806 /* 5807 * XXX KDM need a lock here. 5808 */ 5809 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5810 if ((lun->res_type == SPR_TYPE_EX_AC 5811 && residx != lun->pr_res_idx) 5812 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5813 || lun->res_type == SPR_TYPE_EX_AC_AR) 5814 && !lun->per_res[residx].registered)) { 5815 ctl_set_reservation_conflict(ctsio); 5816 ctl_done((union ctl_io *)ctsio); 5817 return (CTL_RETVAL_COMPLETE); 5818 } 5819 } 5820 5821 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5822 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5823 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5824 ctl_set_invalid_field(ctsio, 5825 /*sks_valid*/ 1, 5826 /*command*/ 1, 5827 /*field*/ 1, 5828 /*bit_valid*/ 1, 5829 /*bit*/ 4); 5830 ctl_done((union ctl_io *)ctsio); 5831 return (CTL_RETVAL_COMPLETE); 5832 } 5833 5834 len = scsi_3btoul(cdb->length); 5835 buffer_offset = scsi_3btoul(cdb->offset); 5836 5837 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5838 ctl_set_invalid_field(ctsio, 5839 /*sks_valid*/ 1, 5840 /*command*/ 1, 5841 /*field*/ 6, 5842 /*bit_valid*/ 0, 5843 /*bit*/ 0); 5844 ctl_done((union ctl_io *)ctsio); 5845 return (CTL_RETVAL_COMPLETE); 5846 } 5847 5848 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5849 descr[0] = 0; 5850 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5851 ctsio->kern_data_ptr = descr; 5852 len = min(len, sizeof(descr)); 5853 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5854 ctsio->kern_data_ptr = echo_descr; 5855 len = min(len, sizeof(echo_descr)); 5856 } else 5857 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5858 ctsio->kern_data_len = len; 5859 ctsio->kern_total_len = len; 5860 ctsio->kern_data_resid = 0; 5861 ctsio->kern_rel_offset = 0; 5862 ctsio->kern_sg_entries = 0; 5863 ctsio->be_move_done = ctl_config_move_done; 5864 ctl_datamove((union ctl_io *)ctsio); 5865 5866 return (CTL_RETVAL_COMPLETE); 5867} 5868 5869int 5870ctl_write_buffer(struct ctl_scsiio *ctsio) 5871{ 5872 struct scsi_write_buffer *cdb; 5873 struct ctl_lun *lun; 5874 int buffer_offset, len; 5875 5876 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5877 5878 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5879 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5880 5881 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5882 ctl_set_invalid_field(ctsio, 5883 /*sks_valid*/ 1, 5884 /*command*/ 1, 5885 /*field*/ 1, 5886 /*bit_valid*/ 1, 5887 /*bit*/ 4); 5888 ctl_done((union ctl_io *)ctsio); 5889 return (CTL_RETVAL_COMPLETE); 5890 } 5891 5892 len = scsi_3btoul(cdb->length); 5893 buffer_offset = scsi_3btoul(cdb->offset); 5894 5895 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5896 ctl_set_invalid_field(ctsio, 5897 /*sks_valid*/ 1, 5898 /*command*/ 1, 5899 /*field*/ 6, 5900 /*bit_valid*/ 0, 5901 /*bit*/ 0); 5902 ctl_done((union ctl_io *)ctsio); 5903 return (CTL_RETVAL_COMPLETE); 5904 } 5905 5906 /* 5907 * If we've got a kernel request that hasn't been malloced yet, 5908 * malloc it and tell the caller the data buffer is here. 5909 */ 5910 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5911 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5912 ctsio->kern_data_len = len; 5913 ctsio->kern_total_len = len; 5914 ctsio->kern_data_resid = 0; 5915 ctsio->kern_rel_offset = 0; 5916 ctsio->kern_sg_entries = 0; 5917 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5918 ctsio->be_move_done = ctl_config_move_done; 5919 ctl_datamove((union ctl_io *)ctsio); 5920 5921 return (CTL_RETVAL_COMPLETE); 5922 } 5923 5924 ctl_done((union ctl_io *)ctsio); 5925 5926 return (CTL_RETVAL_COMPLETE); 5927} 5928 5929int 5930ctl_write_same(struct ctl_scsiio *ctsio) 5931{ 5932 struct ctl_lun *lun; 5933 struct ctl_lba_len_flags *lbalen; 5934 uint64_t lba; 5935 uint32_t num_blocks; 5936 int len, retval; 5937 uint8_t byte2; 5938 5939 retval = CTL_RETVAL_COMPLETE; 5940 5941 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5942 5943 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5944 5945 switch (ctsio->cdb[0]) { 5946 case WRITE_SAME_10: { 5947 struct scsi_write_same_10 *cdb; 5948 5949 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5950 5951 lba = scsi_4btoul(cdb->addr); 5952 num_blocks = scsi_2btoul(cdb->length); 5953 byte2 = cdb->byte2; 5954 break; 5955 } 5956 case WRITE_SAME_16: { 5957 struct scsi_write_same_16 *cdb; 5958 5959 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5960 5961 lba = scsi_8btou64(cdb->addr); 5962 num_blocks = scsi_4btoul(cdb->length); 5963 byte2 = cdb->byte2; 5964 break; 5965 } 5966 default: 5967 /* 5968 * We got a command we don't support. This shouldn't 5969 * happen, commands should be filtered out above us. 5970 */ 5971 ctl_set_invalid_opcode(ctsio); 5972 ctl_done((union ctl_io *)ctsio); 5973 5974 return (CTL_RETVAL_COMPLETE); 5975 break; /* NOTREACHED */ 5976 } 5977 5978 /* 5979 * The first check is to make sure we're in bounds, the second 5980 * check is to catch wrap-around problems. If the lba + num blocks 5981 * is less than the lba, then we've wrapped around and the block 5982 * range is invalid anyway. 5983 */ 5984 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5985 || ((lba + num_blocks) < lba)) { 5986 ctl_set_lba_out_of_range(ctsio); 5987 ctl_done((union ctl_io *)ctsio); 5988 return (CTL_RETVAL_COMPLETE); 5989 } 5990 5991 /* Zero number of blocks means "to the last logical block" */ 5992 if (num_blocks == 0) { 5993 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5994 ctl_set_invalid_field(ctsio, 5995 /*sks_valid*/ 0, 5996 /*command*/ 1, 5997 /*field*/ 0, 5998 /*bit_valid*/ 0, 5999 /*bit*/ 0); 6000 ctl_done((union ctl_io *)ctsio); 6001 return (CTL_RETVAL_COMPLETE); 6002 } 6003 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6004 } 6005 6006 len = lun->be_lun->blocksize; 6007 6008 /* 6009 * If we've got a kernel request that hasn't been malloced yet, 6010 * malloc it and tell the caller the data buffer is here. 6011 */ 6012 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6013 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6014 ctsio->kern_data_len = len; 6015 ctsio->kern_total_len = len; 6016 ctsio->kern_data_resid = 0; 6017 ctsio->kern_rel_offset = 0; 6018 ctsio->kern_sg_entries = 0; 6019 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6020 ctsio->be_move_done = ctl_config_move_done; 6021 ctl_datamove((union ctl_io *)ctsio); 6022 6023 return (CTL_RETVAL_COMPLETE); 6024 } 6025 6026 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6027 lbalen->lba = lba; 6028 lbalen->len = num_blocks; 6029 lbalen->flags = byte2; 6030 retval = lun->backend->config_write((union ctl_io *)ctsio); 6031 6032 return (retval); 6033} 6034 6035int 6036ctl_unmap(struct ctl_scsiio *ctsio) 6037{ 6038 struct ctl_lun *lun; 6039 struct scsi_unmap *cdb; 6040 struct ctl_ptr_len_flags *ptrlen; 6041 struct scsi_unmap_header *hdr; 6042 struct scsi_unmap_desc *buf, *end; 6043 uint64_t lba; 6044 uint32_t num_blocks; 6045 int len, retval; 6046 uint8_t byte2; 6047 6048 retval = CTL_RETVAL_COMPLETE; 6049 6050 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6051 6052 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6053 cdb = (struct scsi_unmap *)ctsio->cdb; 6054 6055 len = scsi_2btoul(cdb->length); 6056 byte2 = cdb->byte2; 6057 6058 /* 6059 * If we've got a kernel request that hasn't been malloced yet, 6060 * malloc it and tell the caller the data buffer is here. 6061 */ 6062 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6063 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6064 ctsio->kern_data_len = len; 6065 ctsio->kern_total_len = len; 6066 ctsio->kern_data_resid = 0; 6067 ctsio->kern_rel_offset = 0; 6068 ctsio->kern_sg_entries = 0; 6069 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6070 ctsio->be_move_done = ctl_config_move_done; 6071 ctl_datamove((union ctl_io *)ctsio); 6072 6073 return (CTL_RETVAL_COMPLETE); 6074 } 6075 6076 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6077 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6078 if (len < sizeof (*hdr) || 6079 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6080 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6081 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6082 ctl_set_invalid_field(ctsio, 6083 /*sks_valid*/ 0, 6084 /*command*/ 0, 6085 /*field*/ 0, 6086 /*bit_valid*/ 0, 6087 /*bit*/ 0); 6088 ctl_done((union ctl_io *)ctsio); 6089 return (CTL_RETVAL_COMPLETE); 6090 } 6091 len = scsi_2btoul(hdr->desc_length); 6092 buf = (struct scsi_unmap_desc *)(hdr + 1); 6093 end = buf + len / sizeof(*buf); 6094 6095 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6096 ptrlen->ptr = (void *)buf; 6097 ptrlen->len = len; 6098 ptrlen->flags = byte2; 6099 6100 for (; buf < end; buf++) { 6101 lba = scsi_8btou64(buf->lba); 6102 num_blocks = scsi_4btoul(buf->length); 6103 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6104 || ((lba + num_blocks) < lba)) { 6105 ctl_set_lba_out_of_range(ctsio); 6106 ctl_done((union ctl_io *)ctsio); 6107 return (CTL_RETVAL_COMPLETE); 6108 } 6109 } 6110 6111 retval = lun->backend->config_write((union ctl_io *)ctsio); 6112 6113 return (retval); 6114} 6115 6116/* 6117 * Note that this function currently doesn't actually do anything inside 6118 * CTL to enforce things if the DQue bit is turned on. 6119 * 6120 * Also note that this function can't be used in the default case, because 6121 * the DQue bit isn't set in the changeable mask for the control mode page 6122 * anyway. This is just here as an example for how to implement a page 6123 * handler, and a placeholder in case we want to allow the user to turn 6124 * tagged queueing on and off. 6125 * 6126 * The D_SENSE bit handling is functional, however, and will turn 6127 * descriptor sense on and off for a given LUN. 6128 */ 6129int 6130ctl_control_page_handler(struct ctl_scsiio *ctsio, 6131 struct ctl_page_index *page_index, uint8_t *page_ptr) 6132{ 6133 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6134 struct ctl_lun *lun; 6135 struct ctl_softc *softc; 6136 int set_ua; 6137 uint32_t initidx; 6138 6139 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6140 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6141 set_ua = 0; 6142 6143 user_cp = (struct scsi_control_page *)page_ptr; 6144 current_cp = (struct scsi_control_page *) 6145 (page_index->page_data + (page_index->page_len * 6146 CTL_PAGE_CURRENT)); 6147 saved_cp = (struct scsi_control_page *) 6148 (page_index->page_data + (page_index->page_len * 6149 CTL_PAGE_SAVED)); 6150 6151 softc = control_softc; 6152 6153 mtx_lock(&lun->lun_lock); 6154 if (((current_cp->rlec & SCP_DSENSE) == 0) 6155 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6156 /* 6157 * Descriptor sense is currently turned off and the user 6158 * wants to turn it on. 6159 */ 6160 current_cp->rlec |= SCP_DSENSE; 6161 saved_cp->rlec |= SCP_DSENSE; 6162 lun->flags |= CTL_LUN_SENSE_DESC; 6163 set_ua = 1; 6164 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6165 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6166 /* 6167 * Descriptor sense is currently turned on, and the user 6168 * wants to turn it off. 6169 */ 6170 current_cp->rlec &= ~SCP_DSENSE; 6171 saved_cp->rlec &= ~SCP_DSENSE; 6172 lun->flags &= ~CTL_LUN_SENSE_DESC; 6173 set_ua = 1; 6174 } 6175 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6176 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6177#ifdef NEEDTOPORT 6178 csevent_log(CSC_CTL | CSC_SHELF_SW | 6179 CTL_UNTAG_TO_UNTAG, 6180 csevent_LogType_Trace, 6181 csevent_Severity_Information, 6182 csevent_AlertLevel_Green, 6183 csevent_FRU_Firmware, 6184 csevent_FRU_Unknown, 6185 "Received untagged to untagged transition"); 6186#endif /* NEEDTOPORT */ 6187 } else { 6188#ifdef NEEDTOPORT 6189 csevent_log(CSC_CTL | CSC_SHELF_SW | 6190 CTL_UNTAG_TO_TAG, 6191 csevent_LogType_ConfigChange, 6192 csevent_Severity_Information, 6193 csevent_AlertLevel_Green, 6194 csevent_FRU_Firmware, 6195 csevent_FRU_Unknown, 6196 "Received untagged to tagged " 6197 "queueing transition"); 6198#endif /* NEEDTOPORT */ 6199 6200 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6201 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6202 set_ua = 1; 6203 } 6204 } else { 6205 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6206#ifdef NEEDTOPORT 6207 csevent_log(CSC_CTL | CSC_SHELF_SW | 6208 CTL_TAG_TO_UNTAG, 6209 csevent_LogType_ConfigChange, 6210 csevent_Severity_Warning, 6211 csevent_AlertLevel_Yellow, 6212 csevent_FRU_Firmware, 6213 csevent_FRU_Unknown, 6214 "Received tagged queueing to untagged " 6215 "transition"); 6216#endif /* NEEDTOPORT */ 6217 6218 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6219 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6220 set_ua = 1; 6221 } else { 6222#ifdef NEEDTOPORT 6223 csevent_log(CSC_CTL | CSC_SHELF_SW | 6224 CTL_TAG_TO_TAG, 6225 csevent_LogType_Trace, 6226 csevent_Severity_Information, 6227 csevent_AlertLevel_Green, 6228 csevent_FRU_Firmware, 6229 csevent_FRU_Unknown, 6230 "Received tagged queueing to tagged " 6231 "queueing transition"); 6232#endif /* NEEDTOPORT */ 6233 } 6234 } 6235 if (set_ua != 0) { 6236 int i; 6237 /* 6238 * Let other initiators know that the mode 6239 * parameters for this LUN have changed. 6240 */ 6241 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6242 if (i == initidx) 6243 continue; 6244 6245 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6246 } 6247 } 6248 mtx_unlock(&lun->lun_lock); 6249 6250 return (0); 6251} 6252 6253int 6254ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6255 struct ctl_page_index *page_index, uint8_t *page_ptr) 6256{ 6257 return (0); 6258} 6259 6260int 6261ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6262 struct ctl_page_index *page_index, int pc) 6263{ 6264 struct copan_power_subpage *page; 6265 6266 page = (struct copan_power_subpage *)page_index->page_data + 6267 (page_index->page_len * pc); 6268 6269 switch (pc) { 6270 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6271 /* 6272 * We don't update the changable bits for this page. 6273 */ 6274 break; 6275 case SMS_PAGE_CTRL_CURRENT >> 6: 6276 case SMS_PAGE_CTRL_DEFAULT >> 6: 6277 case SMS_PAGE_CTRL_SAVED >> 6: 6278#ifdef NEEDTOPORT 6279 ctl_update_power_subpage(page); 6280#endif 6281 break; 6282 default: 6283#ifdef NEEDTOPORT 6284 EPRINT(0, "Invalid PC %d!!", pc); 6285#endif 6286 break; 6287 } 6288 return (0); 6289} 6290 6291 6292int 6293ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6294 struct ctl_page_index *page_index, uint8_t *page_ptr) 6295{ 6296 struct copan_aps_subpage *user_sp; 6297 struct copan_aps_subpage *current_sp; 6298 union ctl_modepage_info *modepage_info; 6299 struct ctl_softc *softc; 6300 struct ctl_lun *lun; 6301 int retval; 6302 6303 retval = CTL_RETVAL_COMPLETE; 6304 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6305 (page_index->page_len * CTL_PAGE_CURRENT)); 6306 softc = control_softc; 6307 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6308 6309 user_sp = (struct copan_aps_subpage *)page_ptr; 6310 6311 modepage_info = (union ctl_modepage_info *) 6312 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6313 6314 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6315 modepage_info->header.subpage = page_index->subpage; 6316 modepage_info->aps.lock_active = user_sp->lock_active; 6317 6318 mtx_lock(&softc->ctl_lock); 6319 6320 /* 6321 * If there is a request to lock the LUN and another LUN is locked 6322 * this is an error. If the requested LUN is already locked ignore 6323 * the request. If no LUN is locked attempt to lock it. 6324 * if there is a request to unlock the LUN and the LUN is currently 6325 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6326 * if another LUN is locked or no LUN is locked. 6327 */ 6328 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6329 if (softc->aps_locked_lun == lun->lun) { 6330 /* 6331 * This LUN is already locked, so we're done. 6332 */ 6333 retval = CTL_RETVAL_COMPLETE; 6334 } else if (softc->aps_locked_lun == 0) { 6335 /* 6336 * No one has the lock, pass the request to the 6337 * backend. 6338 */ 6339 retval = lun->backend->config_write( 6340 (union ctl_io *)ctsio); 6341 } else { 6342 /* 6343 * Someone else has the lock, throw out the request. 6344 */ 6345 ctl_set_already_locked(ctsio); 6346 free(ctsio->kern_data_ptr, M_CTL); 6347 ctl_done((union ctl_io *)ctsio); 6348 6349 /* 6350 * Set the return value so that ctl_do_mode_select() 6351 * won't try to complete the command. We already 6352 * completed it here. 6353 */ 6354 retval = CTL_RETVAL_ERROR; 6355 } 6356 } else if (softc->aps_locked_lun == lun->lun) { 6357 /* 6358 * This LUN is locked, so pass the unlock request to the 6359 * backend. 6360 */ 6361 retval = lun->backend->config_write((union ctl_io *)ctsio); 6362 } 6363 mtx_unlock(&softc->ctl_lock); 6364 6365 return (retval); 6366} 6367 6368int 6369ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6370 struct ctl_page_index *page_index, 6371 uint8_t *page_ptr) 6372{ 6373 uint8_t *c; 6374 int i; 6375 6376 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6377 ctl_time_io_secs = 6378 (c[0] << 8) | 6379 (c[1] << 0) | 6380 0; 6381 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6382 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6383 printf("page data:"); 6384 for (i=0; i<8; i++) 6385 printf(" %.2x",page_ptr[i]); 6386 printf("\n"); 6387 return (0); 6388} 6389 6390int 6391ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6392 struct ctl_page_index *page_index, 6393 int pc) 6394{ 6395 struct copan_debugconf_subpage *page; 6396 6397 page = (struct copan_debugconf_subpage *)page_index->page_data + 6398 (page_index->page_len * pc); 6399 6400 switch (pc) { 6401 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6402 case SMS_PAGE_CTRL_DEFAULT >> 6: 6403 case SMS_PAGE_CTRL_SAVED >> 6: 6404 /* 6405 * We don't update the changable or default bits for this page. 6406 */ 6407 break; 6408 case SMS_PAGE_CTRL_CURRENT >> 6: 6409 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6410 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6411 break; 6412 default: 6413#ifdef NEEDTOPORT 6414 EPRINT(0, "Invalid PC %d!!", pc); 6415#endif /* NEEDTOPORT */ 6416 break; 6417 } 6418 return (0); 6419} 6420 6421 6422static int 6423ctl_do_mode_select(union ctl_io *io) 6424{ 6425 struct scsi_mode_page_header *page_header; 6426 struct ctl_page_index *page_index; 6427 struct ctl_scsiio *ctsio; 6428 int control_dev, page_len; 6429 int page_len_offset, page_len_size; 6430 union ctl_modepage_info *modepage_info; 6431 struct ctl_lun *lun; 6432 int *len_left, *len_used; 6433 int retval, i; 6434 6435 ctsio = &io->scsiio; 6436 page_index = NULL; 6437 page_len = 0; 6438 retval = CTL_RETVAL_COMPLETE; 6439 6440 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6441 6442 if (lun->be_lun->lun_type != T_DIRECT) 6443 control_dev = 1; 6444 else 6445 control_dev = 0; 6446 6447 modepage_info = (union ctl_modepage_info *) 6448 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6449 len_left = &modepage_info->header.len_left; 6450 len_used = &modepage_info->header.len_used; 6451 6452do_next_page: 6453 6454 page_header = (struct scsi_mode_page_header *) 6455 (ctsio->kern_data_ptr + *len_used); 6456 6457 if (*len_left == 0) { 6458 free(ctsio->kern_data_ptr, M_CTL); 6459 ctl_set_success(ctsio); 6460 ctl_done((union ctl_io *)ctsio); 6461 return (CTL_RETVAL_COMPLETE); 6462 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6463 6464 free(ctsio->kern_data_ptr, M_CTL); 6465 ctl_set_param_len_error(ctsio); 6466 ctl_done((union ctl_io *)ctsio); 6467 return (CTL_RETVAL_COMPLETE); 6468 6469 } else if ((page_header->page_code & SMPH_SPF) 6470 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6471 6472 free(ctsio->kern_data_ptr, M_CTL); 6473 ctl_set_param_len_error(ctsio); 6474 ctl_done((union ctl_io *)ctsio); 6475 return (CTL_RETVAL_COMPLETE); 6476 } 6477 6478 6479 /* 6480 * XXX KDM should we do something with the block descriptor? 6481 */ 6482 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6483 6484 if ((control_dev != 0) 6485 && (lun->mode_pages.index[i].page_flags & 6486 CTL_PAGE_FLAG_DISK_ONLY)) 6487 continue; 6488 6489 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6490 (page_header->page_code & SMPH_PC_MASK)) 6491 continue; 6492 6493 /* 6494 * If neither page has a subpage code, then we've got a 6495 * match. 6496 */ 6497 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6498 && ((page_header->page_code & SMPH_SPF) == 0)) { 6499 page_index = &lun->mode_pages.index[i]; 6500 page_len = page_header->page_length; 6501 break; 6502 } 6503 6504 /* 6505 * If both pages have subpages, then the subpage numbers 6506 * have to match. 6507 */ 6508 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6509 && (page_header->page_code & SMPH_SPF)) { 6510 struct scsi_mode_page_header_sp *sph; 6511 6512 sph = (struct scsi_mode_page_header_sp *)page_header; 6513 6514 if (lun->mode_pages.index[i].subpage == 6515 sph->subpage) { 6516 page_index = &lun->mode_pages.index[i]; 6517 page_len = scsi_2btoul(sph->page_length); 6518 break; 6519 } 6520 } 6521 } 6522 6523 /* 6524 * If we couldn't find the page, or if we don't have a mode select 6525 * handler for it, send back an error to the user. 6526 */ 6527 if ((page_index == NULL) 6528 || (page_index->select_handler == NULL)) { 6529 ctl_set_invalid_field(ctsio, 6530 /*sks_valid*/ 1, 6531 /*command*/ 0, 6532 /*field*/ *len_used, 6533 /*bit_valid*/ 0, 6534 /*bit*/ 0); 6535 free(ctsio->kern_data_ptr, M_CTL); 6536 ctl_done((union ctl_io *)ctsio); 6537 return (CTL_RETVAL_COMPLETE); 6538 } 6539 6540 if (page_index->page_code & SMPH_SPF) { 6541 page_len_offset = 2; 6542 page_len_size = 2; 6543 } else { 6544 page_len_size = 1; 6545 page_len_offset = 1; 6546 } 6547 6548 /* 6549 * If the length the initiator gives us isn't the one we specify in 6550 * the mode page header, or if they didn't specify enough data in 6551 * the CDB to avoid truncating this page, kick out the request. 6552 */ 6553 if ((page_len != (page_index->page_len - page_len_offset - 6554 page_len_size)) 6555 || (*len_left < page_index->page_len)) { 6556 6557 6558 ctl_set_invalid_field(ctsio, 6559 /*sks_valid*/ 1, 6560 /*command*/ 0, 6561 /*field*/ *len_used + page_len_offset, 6562 /*bit_valid*/ 0, 6563 /*bit*/ 0); 6564 free(ctsio->kern_data_ptr, M_CTL); 6565 ctl_done((union ctl_io *)ctsio); 6566 return (CTL_RETVAL_COMPLETE); 6567 } 6568 6569 /* 6570 * Run through the mode page, checking to make sure that the bits 6571 * the user changed are actually legal for him to change. 6572 */ 6573 for (i = 0; i < page_index->page_len; i++) { 6574 uint8_t *user_byte, *change_mask, *current_byte; 6575 int bad_bit; 6576 int j; 6577 6578 user_byte = (uint8_t *)page_header + i; 6579 change_mask = page_index->page_data + 6580 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6581 current_byte = page_index->page_data + 6582 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6583 6584 /* 6585 * Check to see whether the user set any bits in this byte 6586 * that he is not allowed to set. 6587 */ 6588 if ((*user_byte & ~(*change_mask)) == 6589 (*current_byte & ~(*change_mask))) 6590 continue; 6591 6592 /* 6593 * Go through bit by bit to determine which one is illegal. 6594 */ 6595 bad_bit = 0; 6596 for (j = 7; j >= 0; j--) { 6597 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6598 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6599 bad_bit = i; 6600 break; 6601 } 6602 } 6603 ctl_set_invalid_field(ctsio, 6604 /*sks_valid*/ 1, 6605 /*command*/ 0, 6606 /*field*/ *len_used + i, 6607 /*bit_valid*/ 1, 6608 /*bit*/ bad_bit); 6609 free(ctsio->kern_data_ptr, M_CTL); 6610 ctl_done((union ctl_io *)ctsio); 6611 return (CTL_RETVAL_COMPLETE); 6612 } 6613 6614 /* 6615 * Decrement these before we call the page handler, since we may 6616 * end up getting called back one way or another before the handler 6617 * returns to this context. 6618 */ 6619 *len_left -= page_index->page_len; 6620 *len_used += page_index->page_len; 6621 6622 retval = page_index->select_handler(ctsio, page_index, 6623 (uint8_t *)page_header); 6624 6625 /* 6626 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6627 * wait until this queued command completes to finish processing 6628 * the mode page. If it returns anything other than 6629 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6630 * already set the sense information, freed the data pointer, and 6631 * completed the io for us. 6632 */ 6633 if (retval != CTL_RETVAL_COMPLETE) 6634 goto bailout_no_done; 6635 6636 /* 6637 * If the initiator sent us more than one page, parse the next one. 6638 */ 6639 if (*len_left > 0) 6640 goto do_next_page; 6641 6642 ctl_set_success(ctsio); 6643 free(ctsio->kern_data_ptr, M_CTL); 6644 ctl_done((union ctl_io *)ctsio); 6645 6646bailout_no_done: 6647 6648 return (CTL_RETVAL_COMPLETE); 6649 6650} 6651 6652int 6653ctl_mode_select(struct ctl_scsiio *ctsio) 6654{ 6655 int param_len, pf, sp; 6656 int header_size, bd_len; 6657 int len_left, len_used; 6658 struct ctl_page_index *page_index; 6659 struct ctl_lun *lun; 6660 int control_dev, page_len; 6661 union ctl_modepage_info *modepage_info; 6662 int retval; 6663 6664 pf = 0; 6665 sp = 0; 6666 page_len = 0; 6667 len_used = 0; 6668 len_left = 0; 6669 retval = 0; 6670 bd_len = 0; 6671 page_index = NULL; 6672 6673 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6674 6675 if (lun->be_lun->lun_type != T_DIRECT) 6676 control_dev = 1; 6677 else 6678 control_dev = 0; 6679 6680 switch (ctsio->cdb[0]) { 6681 case MODE_SELECT_6: { 6682 struct scsi_mode_select_6 *cdb; 6683 6684 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6685 6686 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6687 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6688 6689 param_len = cdb->length; 6690 header_size = sizeof(struct scsi_mode_header_6); 6691 break; 6692 } 6693 case MODE_SELECT_10: { 6694 struct scsi_mode_select_10 *cdb; 6695 6696 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6697 6698 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6699 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6700 6701 param_len = scsi_2btoul(cdb->length); 6702 header_size = sizeof(struct scsi_mode_header_10); 6703 break; 6704 } 6705 default: 6706 ctl_set_invalid_opcode(ctsio); 6707 ctl_done((union ctl_io *)ctsio); 6708 return (CTL_RETVAL_COMPLETE); 6709 break; /* NOTREACHED */ 6710 } 6711 6712 /* 6713 * From SPC-3: 6714 * "A parameter list length of zero indicates that the Data-Out Buffer 6715 * shall be empty. This condition shall not be considered as an error." 6716 */ 6717 if (param_len == 0) { 6718 ctl_set_success(ctsio); 6719 ctl_done((union ctl_io *)ctsio); 6720 return (CTL_RETVAL_COMPLETE); 6721 } 6722 6723 /* 6724 * Since we'll hit this the first time through, prior to 6725 * allocation, we don't need to free a data buffer here. 6726 */ 6727 if (param_len < header_size) { 6728 ctl_set_param_len_error(ctsio); 6729 ctl_done((union ctl_io *)ctsio); 6730 return (CTL_RETVAL_COMPLETE); 6731 } 6732 6733 /* 6734 * Allocate the data buffer and grab the user's data. In theory, 6735 * we shouldn't have to sanity check the parameter list length here 6736 * because the maximum size is 64K. We should be able to malloc 6737 * that much without too many problems. 6738 */ 6739 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6740 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6741 ctsio->kern_data_len = param_len; 6742 ctsio->kern_total_len = param_len; 6743 ctsio->kern_data_resid = 0; 6744 ctsio->kern_rel_offset = 0; 6745 ctsio->kern_sg_entries = 0; 6746 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6747 ctsio->be_move_done = ctl_config_move_done; 6748 ctl_datamove((union ctl_io *)ctsio); 6749 6750 return (CTL_RETVAL_COMPLETE); 6751 } 6752 6753 switch (ctsio->cdb[0]) { 6754 case MODE_SELECT_6: { 6755 struct scsi_mode_header_6 *mh6; 6756 6757 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6758 bd_len = mh6->blk_desc_len; 6759 break; 6760 } 6761 case MODE_SELECT_10: { 6762 struct scsi_mode_header_10 *mh10; 6763 6764 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6765 bd_len = scsi_2btoul(mh10->blk_desc_len); 6766 break; 6767 } 6768 default: 6769 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6770 break; 6771 } 6772 6773 if (param_len < (header_size + bd_len)) { 6774 free(ctsio->kern_data_ptr, M_CTL); 6775 ctl_set_param_len_error(ctsio); 6776 ctl_done((union ctl_io *)ctsio); 6777 return (CTL_RETVAL_COMPLETE); 6778 } 6779 6780 /* 6781 * Set the IO_CONT flag, so that if this I/O gets passed to 6782 * ctl_config_write_done(), it'll get passed back to 6783 * ctl_do_mode_select() for further processing, or completion if 6784 * we're all done. 6785 */ 6786 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6787 ctsio->io_cont = ctl_do_mode_select; 6788 6789 modepage_info = (union ctl_modepage_info *) 6790 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6791 6792 memset(modepage_info, 0, sizeof(*modepage_info)); 6793 6794 len_left = param_len - header_size - bd_len; 6795 len_used = header_size + bd_len; 6796 6797 modepage_info->header.len_left = len_left; 6798 modepage_info->header.len_used = len_used; 6799 6800 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6801} 6802 6803int 6804ctl_mode_sense(struct ctl_scsiio *ctsio) 6805{ 6806 struct ctl_lun *lun; 6807 int pc, page_code, dbd, llba, subpage; 6808 int alloc_len, page_len, header_len, total_len; 6809 struct scsi_mode_block_descr *block_desc; 6810 struct ctl_page_index *page_index; 6811 int control_dev; 6812 6813 dbd = 0; 6814 llba = 0; 6815 block_desc = NULL; 6816 page_index = NULL; 6817 6818 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6819 6820 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6821 6822 if (lun->be_lun->lun_type != T_DIRECT) 6823 control_dev = 1; 6824 else 6825 control_dev = 0; 6826 6827 if (lun->flags & CTL_LUN_PR_RESERVED) { 6828 uint32_t residx; 6829 6830 /* 6831 * XXX KDM need a lock here. 6832 */ 6833 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6834 if ((lun->res_type == SPR_TYPE_EX_AC 6835 && residx != lun->pr_res_idx) 6836 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6837 || lun->res_type == SPR_TYPE_EX_AC_AR) 6838 && !lun->per_res[residx].registered)) { 6839 ctl_set_reservation_conflict(ctsio); 6840 ctl_done((union ctl_io *)ctsio); 6841 return (CTL_RETVAL_COMPLETE); 6842 } 6843 } 6844 6845 switch (ctsio->cdb[0]) { 6846 case MODE_SENSE_6: { 6847 struct scsi_mode_sense_6 *cdb; 6848 6849 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6850 6851 header_len = sizeof(struct scsi_mode_hdr_6); 6852 if (cdb->byte2 & SMS_DBD) 6853 dbd = 1; 6854 else 6855 header_len += sizeof(struct scsi_mode_block_descr); 6856 6857 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6858 page_code = cdb->page & SMS_PAGE_CODE; 6859 subpage = cdb->subpage; 6860 alloc_len = cdb->length; 6861 break; 6862 } 6863 case MODE_SENSE_10: { 6864 struct scsi_mode_sense_10 *cdb; 6865 6866 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6867 6868 header_len = sizeof(struct scsi_mode_hdr_10); 6869 6870 if (cdb->byte2 & SMS_DBD) 6871 dbd = 1; 6872 else 6873 header_len += sizeof(struct scsi_mode_block_descr); 6874 if (cdb->byte2 & SMS10_LLBAA) 6875 llba = 1; 6876 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6877 page_code = cdb->page & SMS_PAGE_CODE; 6878 subpage = cdb->subpage; 6879 alloc_len = scsi_2btoul(cdb->length); 6880 break; 6881 } 6882 default: 6883 ctl_set_invalid_opcode(ctsio); 6884 ctl_done((union ctl_io *)ctsio); 6885 return (CTL_RETVAL_COMPLETE); 6886 break; /* NOTREACHED */ 6887 } 6888 6889 /* 6890 * We have to make a first pass through to calculate the size of 6891 * the pages that match the user's query. Then we allocate enough 6892 * memory to hold it, and actually copy the data into the buffer. 6893 */ 6894 switch (page_code) { 6895 case SMS_ALL_PAGES_PAGE: { 6896 int i; 6897 6898 page_len = 0; 6899 6900 /* 6901 * At the moment, values other than 0 and 0xff here are 6902 * reserved according to SPC-3. 6903 */ 6904 if ((subpage != SMS_SUBPAGE_PAGE_0) 6905 && (subpage != SMS_SUBPAGE_ALL)) { 6906 ctl_set_invalid_field(ctsio, 6907 /*sks_valid*/ 1, 6908 /*command*/ 1, 6909 /*field*/ 3, 6910 /*bit_valid*/ 0, 6911 /*bit*/ 0); 6912 ctl_done((union ctl_io *)ctsio); 6913 return (CTL_RETVAL_COMPLETE); 6914 } 6915 6916 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6917 if ((control_dev != 0) 6918 && (lun->mode_pages.index[i].page_flags & 6919 CTL_PAGE_FLAG_DISK_ONLY)) 6920 continue; 6921 6922 /* 6923 * We don't use this subpage if the user didn't 6924 * request all subpages. 6925 */ 6926 if ((lun->mode_pages.index[i].subpage != 0) 6927 && (subpage == SMS_SUBPAGE_PAGE_0)) 6928 continue; 6929 6930#if 0 6931 printf("found page %#x len %d\n", 6932 lun->mode_pages.index[i].page_code & 6933 SMPH_PC_MASK, 6934 lun->mode_pages.index[i].page_len); 6935#endif 6936 page_len += lun->mode_pages.index[i].page_len; 6937 } 6938 break; 6939 } 6940 default: { 6941 int i; 6942 6943 page_len = 0; 6944 6945 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6946 /* Look for the right page code */ 6947 if ((lun->mode_pages.index[i].page_code & 6948 SMPH_PC_MASK) != page_code) 6949 continue; 6950 6951 /* Look for the right subpage or the subpage wildcard*/ 6952 if ((lun->mode_pages.index[i].subpage != subpage) 6953 && (subpage != SMS_SUBPAGE_ALL)) 6954 continue; 6955 6956 /* Make sure the page is supported for this dev type */ 6957 if ((control_dev != 0) 6958 && (lun->mode_pages.index[i].page_flags & 6959 CTL_PAGE_FLAG_DISK_ONLY)) 6960 continue; 6961 6962#if 0 6963 printf("found page %#x len %d\n", 6964 lun->mode_pages.index[i].page_code & 6965 SMPH_PC_MASK, 6966 lun->mode_pages.index[i].page_len); 6967#endif 6968 6969 page_len += lun->mode_pages.index[i].page_len; 6970 } 6971 6972 if (page_len == 0) { 6973 ctl_set_invalid_field(ctsio, 6974 /*sks_valid*/ 1, 6975 /*command*/ 1, 6976 /*field*/ 2, 6977 /*bit_valid*/ 1, 6978 /*bit*/ 5); 6979 ctl_done((union ctl_io *)ctsio); 6980 return (CTL_RETVAL_COMPLETE); 6981 } 6982 break; 6983 } 6984 } 6985 6986 total_len = header_len + page_len; 6987#if 0 6988 printf("header_len = %d, page_len = %d, total_len = %d\n", 6989 header_len, page_len, total_len); 6990#endif 6991 6992 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6993 ctsio->kern_sg_entries = 0; 6994 ctsio->kern_data_resid = 0; 6995 ctsio->kern_rel_offset = 0; 6996 if (total_len < alloc_len) { 6997 ctsio->residual = alloc_len - total_len; 6998 ctsio->kern_data_len = total_len; 6999 ctsio->kern_total_len = total_len; 7000 } else { 7001 ctsio->residual = 0; 7002 ctsio->kern_data_len = alloc_len; 7003 ctsio->kern_total_len = alloc_len; 7004 } 7005 7006 switch (ctsio->cdb[0]) { 7007 case MODE_SENSE_6: { 7008 struct scsi_mode_hdr_6 *header; 7009 7010 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7011 7012 header->datalen = ctl_min(total_len - 1, 254); 7013 7014 if (dbd) 7015 header->block_descr_len = 0; 7016 else 7017 header->block_descr_len = 7018 sizeof(struct scsi_mode_block_descr); 7019 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7020 break; 7021 } 7022 case MODE_SENSE_10: { 7023 struct scsi_mode_hdr_10 *header; 7024 int datalen; 7025 7026 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7027 7028 datalen = ctl_min(total_len - 2, 65533); 7029 scsi_ulto2b(datalen, header->datalen); 7030 if (dbd) 7031 scsi_ulto2b(0, header->block_descr_len); 7032 else 7033 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7034 header->block_descr_len); 7035 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7036 break; 7037 } 7038 default: 7039 panic("invalid CDB type %#x", ctsio->cdb[0]); 7040 break; /* NOTREACHED */ 7041 } 7042 7043 /* 7044 * If we've got a disk, use its blocksize in the block 7045 * descriptor. Otherwise, just set it to 0. 7046 */ 7047 if (dbd == 0) { 7048 if (control_dev != 0) 7049 scsi_ulto3b(lun->be_lun->blocksize, 7050 block_desc->block_len); 7051 else 7052 scsi_ulto3b(0, block_desc->block_len); 7053 } 7054 7055 switch (page_code) { 7056 case SMS_ALL_PAGES_PAGE: { 7057 int i, data_used; 7058 7059 data_used = header_len; 7060 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7061 struct ctl_page_index *page_index; 7062 7063 page_index = &lun->mode_pages.index[i]; 7064 7065 if ((control_dev != 0) 7066 && (page_index->page_flags & 7067 CTL_PAGE_FLAG_DISK_ONLY)) 7068 continue; 7069 7070 /* 7071 * We don't use this subpage if the user didn't 7072 * request all subpages. We already checked (above) 7073 * to make sure the user only specified a subpage 7074 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7075 */ 7076 if ((page_index->subpage != 0) 7077 && (subpage == SMS_SUBPAGE_PAGE_0)) 7078 continue; 7079 7080 /* 7081 * Call the handler, if it exists, to update the 7082 * page to the latest values. 7083 */ 7084 if (page_index->sense_handler != NULL) 7085 page_index->sense_handler(ctsio, page_index,pc); 7086 7087 memcpy(ctsio->kern_data_ptr + data_used, 7088 page_index->page_data + 7089 (page_index->page_len * pc), 7090 page_index->page_len); 7091 data_used += page_index->page_len; 7092 } 7093 break; 7094 } 7095 default: { 7096 int i, data_used; 7097 7098 data_used = header_len; 7099 7100 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7101 struct ctl_page_index *page_index; 7102 7103 page_index = &lun->mode_pages.index[i]; 7104 7105 /* Look for the right page code */ 7106 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7107 continue; 7108 7109 /* Look for the right subpage or the subpage wildcard*/ 7110 if ((page_index->subpage != subpage) 7111 && (subpage != SMS_SUBPAGE_ALL)) 7112 continue; 7113 7114 /* Make sure the page is supported for this dev type */ 7115 if ((control_dev != 0) 7116 && (page_index->page_flags & 7117 CTL_PAGE_FLAG_DISK_ONLY)) 7118 continue; 7119 7120 /* 7121 * Call the handler, if it exists, to update the 7122 * page to the latest values. 7123 */ 7124 if (page_index->sense_handler != NULL) 7125 page_index->sense_handler(ctsio, page_index,pc); 7126 7127 memcpy(ctsio->kern_data_ptr + data_used, 7128 page_index->page_data + 7129 (page_index->page_len * pc), 7130 page_index->page_len); 7131 data_used += page_index->page_len; 7132 } 7133 break; 7134 } 7135 } 7136 7137 ctsio->scsi_status = SCSI_STATUS_OK; 7138 7139 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7140 ctsio->be_move_done = ctl_config_move_done; 7141 ctl_datamove((union ctl_io *)ctsio); 7142 7143 return (CTL_RETVAL_COMPLETE); 7144} 7145 7146int 7147ctl_read_capacity(struct ctl_scsiio *ctsio) 7148{ 7149 struct scsi_read_capacity *cdb; 7150 struct scsi_read_capacity_data *data; 7151 struct ctl_lun *lun; 7152 uint32_t lba; 7153 7154 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7155 7156 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7157 7158 lba = scsi_4btoul(cdb->addr); 7159 if (((cdb->pmi & SRC_PMI) == 0) 7160 && (lba != 0)) { 7161 ctl_set_invalid_field(/*ctsio*/ ctsio, 7162 /*sks_valid*/ 1, 7163 /*command*/ 1, 7164 /*field*/ 2, 7165 /*bit_valid*/ 0, 7166 /*bit*/ 0); 7167 ctl_done((union ctl_io *)ctsio); 7168 return (CTL_RETVAL_COMPLETE); 7169 } 7170 7171 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7172 7173 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7174 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7175 ctsio->residual = 0; 7176 ctsio->kern_data_len = sizeof(*data); 7177 ctsio->kern_total_len = sizeof(*data); 7178 ctsio->kern_data_resid = 0; 7179 ctsio->kern_rel_offset = 0; 7180 ctsio->kern_sg_entries = 0; 7181 7182 /* 7183 * If the maximum LBA is greater than 0xfffffffe, the user must 7184 * issue a SERVICE ACTION IN (16) command, with the read capacity 7185 * serivce action set. 7186 */ 7187 if (lun->be_lun->maxlba > 0xfffffffe) 7188 scsi_ulto4b(0xffffffff, data->addr); 7189 else 7190 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7191 7192 /* 7193 * XXX KDM this may not be 512 bytes... 7194 */ 7195 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7196 7197 ctsio->scsi_status = SCSI_STATUS_OK; 7198 7199 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7200 ctsio->be_move_done = ctl_config_move_done; 7201 ctl_datamove((union ctl_io *)ctsio); 7202 7203 return (CTL_RETVAL_COMPLETE); 7204} 7205 7206int 7207ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7208{ 7209 struct scsi_read_capacity_16 *cdb; 7210 struct scsi_read_capacity_data_long *data; 7211 struct ctl_lun *lun; 7212 uint64_t lba; 7213 uint32_t alloc_len; 7214 7215 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7216 7217 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7218 7219 alloc_len = scsi_4btoul(cdb->alloc_len); 7220 lba = scsi_8btou64(cdb->addr); 7221 7222 if ((cdb->reladr & SRC16_PMI) 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_long *)ctsio->kern_data_ptr; 7238 7239 if (sizeof(*data) < alloc_len) { 7240 ctsio->residual = alloc_len - sizeof(*data); 7241 ctsio->kern_data_len = sizeof(*data); 7242 ctsio->kern_total_len = sizeof(*data); 7243 } else { 7244 ctsio->residual = 0; 7245 ctsio->kern_data_len = alloc_len; 7246 ctsio->kern_total_len = alloc_len; 7247 } 7248 ctsio->kern_data_resid = 0; 7249 ctsio->kern_rel_offset = 0; 7250 ctsio->kern_sg_entries = 0; 7251 7252 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7253 /* XXX KDM this may not be 512 bytes... */ 7254 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7255 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7256 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7257 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7258 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 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_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7271{ 7272 struct scsi_maintenance_in *cdb; 7273 int retval; 7274 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7275 int num_target_port_groups, num_target_ports, single; 7276 struct ctl_lun *lun; 7277 struct ctl_softc *softc; 7278 struct ctl_port *port; 7279 struct scsi_target_group_data *rtg_ptr; 7280 struct scsi_target_group_data_extended *rtg_ext_ptr; 7281 struct scsi_target_port_group_descriptor *tpg_desc; 7282 7283 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7284 7285 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7286 softc = control_softc; 7287 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7288 7289 retval = CTL_RETVAL_COMPLETE; 7290 7291 switch (cdb->byte2 & STG_PDF_MASK) { 7292 case STG_PDF_LENGTH: 7293 ext = 0; 7294 break; 7295 case STG_PDF_EXTENDED: 7296 ext = 1; 7297 break; 7298 default: 7299 ctl_set_invalid_field(/*ctsio*/ ctsio, 7300 /*sks_valid*/ 1, 7301 /*command*/ 1, 7302 /*field*/ 2, 7303 /*bit_valid*/ 1, 7304 /*bit*/ 5); 7305 ctl_done((union ctl_io *)ctsio); 7306 return(retval); 7307 } 7308 7309 single = ctl_is_single; 7310 if (single) 7311 num_target_port_groups = 1; 7312 else 7313 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7314 num_target_ports = 0; 7315 mtx_lock(&softc->ctl_lock); 7316 STAILQ_FOREACH(port, &softc->port_list, links) { 7317 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7318 continue; 7319 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7320 continue; 7321 num_target_ports++; 7322 } 7323 mtx_unlock(&softc->ctl_lock); 7324 7325 if (ext) 7326 total_len = sizeof(struct scsi_target_group_data_extended); 7327 else 7328 total_len = sizeof(struct scsi_target_group_data); 7329 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7330 num_target_port_groups + 7331 sizeof(struct scsi_target_port_descriptor) * 7332 num_target_ports * num_target_port_groups; 7333 7334 alloc_len = scsi_4btoul(cdb->length); 7335 7336 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7337 7338 ctsio->kern_sg_entries = 0; 7339 7340 if (total_len < alloc_len) { 7341 ctsio->residual = alloc_len - total_len; 7342 ctsio->kern_data_len = total_len; 7343 ctsio->kern_total_len = total_len; 7344 } else { 7345 ctsio->residual = 0; 7346 ctsio->kern_data_len = alloc_len; 7347 ctsio->kern_total_len = alloc_len; 7348 } 7349 ctsio->kern_data_resid = 0; 7350 ctsio->kern_rel_offset = 0; 7351 7352 if (ext) { 7353 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7354 ctsio->kern_data_ptr; 7355 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7356 rtg_ext_ptr->format_type = 0x10; 7357 rtg_ext_ptr->implicit_transition_time = 0; 7358 tpg_desc = &rtg_ext_ptr->groups[0]; 7359 } else { 7360 rtg_ptr = (struct scsi_target_group_data *) 7361 ctsio->kern_data_ptr; 7362 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7363 tpg_desc = &rtg_ptr->groups[0]; 7364 } 7365 7366 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7367 mtx_lock(&softc->ctl_lock); 7368 for (g = 0; g < num_target_port_groups; g++) { 7369 if (g == pg) 7370 tpg_desc->pref_state = TPG_PRIMARY | 7371 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7372 else 7373 tpg_desc->pref_state = 7374 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7375 tpg_desc->support = TPG_AO_SUP; 7376 if (!single) 7377 tpg_desc->support |= TPG_AN_SUP; 7378 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7379 tpg_desc->status = TPG_IMPLICIT; 7380 pc = 0; 7381 STAILQ_FOREACH(port, &softc->port_list, links) { 7382 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7383 continue; 7384 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7385 CTL_MAX_LUNS) 7386 continue; 7387 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7388 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7389 relative_target_port_identifier); 7390 pc++; 7391 } 7392 tpg_desc->target_port_count = pc; 7393 tpg_desc = (struct scsi_target_port_group_descriptor *) 7394 &tpg_desc->descriptors[pc]; 7395 } 7396 mtx_unlock(&softc->ctl_lock); 7397 7398 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7399 ctsio->be_move_done = ctl_config_move_done; 7400 7401 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7402 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7403 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7404 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7405 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7406 7407 ctl_datamove((union ctl_io *)ctsio); 7408 return(retval); 7409} 7410 7411int 7412ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7413{ 7414 struct ctl_lun *lun; 7415 struct scsi_report_supported_opcodes *cdb; 7416 const struct ctl_cmd_entry *entry, *sentry; 7417 struct scsi_report_supported_opcodes_all *all; 7418 struct scsi_report_supported_opcodes_descr *descr; 7419 struct scsi_report_supported_opcodes_one *one; 7420 int retval; 7421 int alloc_len, total_len; 7422 int opcode, service_action, i, j, num; 7423 7424 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7425 7426 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7427 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7428 7429 retval = CTL_RETVAL_COMPLETE; 7430 7431 opcode = cdb->requested_opcode; 7432 service_action = scsi_2btoul(cdb->requested_service_action); 7433 switch (cdb->options & RSO_OPTIONS_MASK) { 7434 case RSO_OPTIONS_ALL: 7435 num = 0; 7436 for (i = 0; i < 256; i++) { 7437 entry = &ctl_cmd_table[i]; 7438 if (entry->flags & CTL_CMD_FLAG_SA5) { 7439 for (j = 0; j < 32; j++) { 7440 sentry = &((const struct ctl_cmd_entry *) 7441 entry->execute)[j]; 7442 if (ctl_cmd_applicable( 7443 lun->be_lun->lun_type, sentry)) 7444 num++; 7445 } 7446 } else { 7447 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7448 entry)) 7449 num++; 7450 } 7451 } 7452 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7453 num * sizeof(struct scsi_report_supported_opcodes_descr); 7454 break; 7455 case RSO_OPTIONS_OC: 7456 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7457 ctl_set_invalid_field(/*ctsio*/ ctsio, 7458 /*sks_valid*/ 1, 7459 /*command*/ 1, 7460 /*field*/ 2, 7461 /*bit_valid*/ 1, 7462 /*bit*/ 2); 7463 ctl_done((union ctl_io *)ctsio); 7464 return (CTL_RETVAL_COMPLETE); 7465 } 7466 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7467 break; 7468 case RSO_OPTIONS_OC_SA: 7469 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7470 service_action >= 32) { 7471 ctl_set_invalid_field(/*ctsio*/ ctsio, 7472 /*sks_valid*/ 1, 7473 /*command*/ 1, 7474 /*field*/ 2, 7475 /*bit_valid*/ 1, 7476 /*bit*/ 2); 7477 ctl_done((union ctl_io *)ctsio); 7478 return (CTL_RETVAL_COMPLETE); 7479 } 7480 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7481 break; 7482 default: 7483 ctl_set_invalid_field(/*ctsio*/ ctsio, 7484 /*sks_valid*/ 1, 7485 /*command*/ 1, 7486 /*field*/ 2, 7487 /*bit_valid*/ 1, 7488 /*bit*/ 2); 7489 ctl_done((union ctl_io *)ctsio); 7490 return (CTL_RETVAL_COMPLETE); 7491 } 7492 7493 alloc_len = scsi_4btoul(cdb->length); 7494 7495 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7496 7497 ctsio->kern_sg_entries = 0; 7498 7499 if (total_len < alloc_len) { 7500 ctsio->residual = alloc_len - total_len; 7501 ctsio->kern_data_len = total_len; 7502 ctsio->kern_total_len = total_len; 7503 } else { 7504 ctsio->residual = 0; 7505 ctsio->kern_data_len = alloc_len; 7506 ctsio->kern_total_len = alloc_len; 7507 } 7508 ctsio->kern_data_resid = 0; 7509 ctsio->kern_rel_offset = 0; 7510 7511 switch (cdb->options & RSO_OPTIONS_MASK) { 7512 case RSO_OPTIONS_ALL: 7513 all = (struct scsi_report_supported_opcodes_all *) 7514 ctsio->kern_data_ptr; 7515 num = 0; 7516 for (i = 0; i < 256; i++) { 7517 entry = &ctl_cmd_table[i]; 7518 if (entry->flags & CTL_CMD_FLAG_SA5) { 7519 for (j = 0; j < 32; j++) { 7520 sentry = &((const struct ctl_cmd_entry *) 7521 entry->execute)[j]; 7522 if (!ctl_cmd_applicable( 7523 lun->be_lun->lun_type, sentry)) 7524 continue; 7525 descr = &all->descr[num++]; 7526 descr->opcode = i; 7527 scsi_ulto2b(j, descr->service_action); 7528 descr->flags = RSO_SERVACTV; 7529 scsi_ulto2b(sentry->length, 7530 descr->cdb_length); 7531 } 7532 } else { 7533 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7534 entry)) 7535 continue; 7536 descr = &all->descr[num++]; 7537 descr->opcode = i; 7538 scsi_ulto2b(0, descr->service_action); 7539 descr->flags = 0; 7540 scsi_ulto2b(entry->length, descr->cdb_length); 7541 } 7542 } 7543 scsi_ulto4b( 7544 num * sizeof(struct scsi_report_supported_opcodes_descr), 7545 all->length); 7546 break; 7547 case RSO_OPTIONS_OC: 7548 one = (struct scsi_report_supported_opcodes_one *) 7549 ctsio->kern_data_ptr; 7550 entry = &ctl_cmd_table[opcode]; 7551 goto fill_one; 7552 case RSO_OPTIONS_OC_SA: 7553 one = (struct scsi_report_supported_opcodes_one *) 7554 ctsio->kern_data_ptr; 7555 entry = &ctl_cmd_table[opcode]; 7556 entry = &((const struct ctl_cmd_entry *) 7557 entry->execute)[service_action]; 7558fill_one: 7559 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7560 one->support = 3; 7561 scsi_ulto2b(entry->length, one->cdb_length); 7562 one->cdb_usage[0] = opcode; 7563 memcpy(&one->cdb_usage[1], entry->usage, 7564 entry->length - 1); 7565 } else 7566 one->support = 1; 7567 break; 7568 } 7569 7570 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7571 ctsio->be_move_done = ctl_config_move_done; 7572 7573 ctl_datamove((union ctl_io *)ctsio); 7574 return(retval); 7575} 7576 7577int 7578ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7579{ 7580 struct ctl_lun *lun; 7581 struct scsi_report_supported_tmf *cdb; 7582 struct scsi_report_supported_tmf_data *data; 7583 int retval; 7584 int alloc_len, total_len; 7585 7586 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7587 7588 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7589 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7590 7591 retval = CTL_RETVAL_COMPLETE; 7592 7593 total_len = sizeof(struct scsi_report_supported_tmf_data); 7594 alloc_len = scsi_4btoul(cdb->length); 7595 7596 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7597 7598 ctsio->kern_sg_entries = 0; 7599 7600 if (total_len < alloc_len) { 7601 ctsio->residual = alloc_len - total_len; 7602 ctsio->kern_data_len = total_len; 7603 ctsio->kern_total_len = total_len; 7604 } else { 7605 ctsio->residual = 0; 7606 ctsio->kern_data_len = alloc_len; 7607 ctsio->kern_total_len = alloc_len; 7608 } 7609 ctsio->kern_data_resid = 0; 7610 ctsio->kern_rel_offset = 0; 7611 7612 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7613 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7614 data->byte2 |= RST_ITNRS; 7615 7616 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7617 ctsio->be_move_done = ctl_config_move_done; 7618 7619 ctl_datamove((union ctl_io *)ctsio); 7620 return (retval); 7621} 7622 7623int 7624ctl_report_timestamp(struct ctl_scsiio *ctsio) 7625{ 7626 struct ctl_lun *lun; 7627 struct scsi_report_timestamp *cdb; 7628 struct scsi_report_timestamp_data *data; 7629 struct timeval tv; 7630 int64_t timestamp; 7631 int retval; 7632 int alloc_len, total_len; 7633 7634 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7635 7636 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7637 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7638 7639 retval = CTL_RETVAL_COMPLETE; 7640 7641 total_len = sizeof(struct scsi_report_timestamp_data); 7642 alloc_len = scsi_4btoul(cdb->length); 7643 7644 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7645 7646 ctsio->kern_sg_entries = 0; 7647 7648 if (total_len < alloc_len) { 7649 ctsio->residual = alloc_len - total_len; 7650 ctsio->kern_data_len = total_len; 7651 ctsio->kern_total_len = total_len; 7652 } else { 7653 ctsio->residual = 0; 7654 ctsio->kern_data_len = alloc_len; 7655 ctsio->kern_total_len = alloc_len; 7656 } 7657 ctsio->kern_data_resid = 0; 7658 ctsio->kern_rel_offset = 0; 7659 7660 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7661 scsi_ulto2b(sizeof(*data) - 2, data->length); 7662 data->origin = RTS_ORIG_OUTSIDE; 7663 getmicrotime(&tv); 7664 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7665 scsi_ulto4b(timestamp >> 16, data->timestamp); 7666 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7667 7668 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7669 ctsio->be_move_done = ctl_config_move_done; 7670 7671 ctl_datamove((union ctl_io *)ctsio); 7672 return (retval); 7673} 7674 7675int 7676ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7677{ 7678 struct scsi_per_res_in *cdb; 7679 int alloc_len, total_len = 0; 7680 /* struct scsi_per_res_in_rsrv in_data; */ 7681 struct ctl_lun *lun; 7682 struct ctl_softc *softc; 7683 7684 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7685 7686 softc = control_softc; 7687 7688 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7689 7690 alloc_len = scsi_2btoul(cdb->length); 7691 7692 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7693 7694retry: 7695 mtx_lock(&lun->lun_lock); 7696 switch (cdb->action) { 7697 case SPRI_RK: /* read keys */ 7698 total_len = sizeof(struct scsi_per_res_in_keys) + 7699 lun->pr_key_count * 7700 sizeof(struct scsi_per_res_key); 7701 break; 7702 case SPRI_RR: /* read reservation */ 7703 if (lun->flags & CTL_LUN_PR_RESERVED) 7704 total_len = sizeof(struct scsi_per_res_in_rsrv); 7705 else 7706 total_len = sizeof(struct scsi_per_res_in_header); 7707 break; 7708 case SPRI_RC: /* report capabilities */ 7709 total_len = sizeof(struct scsi_per_res_cap); 7710 break; 7711 case SPRI_RS: /* read full status */ 7712 total_len = sizeof(struct scsi_per_res_in_header) + 7713 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7714 lun->pr_key_count; 7715 break; 7716 default: 7717 panic("Invalid PR type %x", cdb->action); 7718 } 7719 mtx_unlock(&lun->lun_lock); 7720 7721 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7722 7723 if (total_len < alloc_len) { 7724 ctsio->residual = alloc_len - total_len; 7725 ctsio->kern_data_len = total_len; 7726 ctsio->kern_total_len = total_len; 7727 } else { 7728 ctsio->residual = 0; 7729 ctsio->kern_data_len = alloc_len; 7730 ctsio->kern_total_len = alloc_len; 7731 } 7732 7733 ctsio->kern_data_resid = 0; 7734 ctsio->kern_rel_offset = 0; 7735 ctsio->kern_sg_entries = 0; 7736 7737 mtx_lock(&lun->lun_lock); 7738 switch (cdb->action) { 7739 case SPRI_RK: { // read keys 7740 struct scsi_per_res_in_keys *res_keys; 7741 int i, key_count; 7742 7743 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7744 7745 /* 7746 * We had to drop the lock to allocate our buffer, which 7747 * leaves time for someone to come in with another 7748 * persistent reservation. (That is unlikely, though, 7749 * since this should be the only persistent reservation 7750 * command active right now.) 7751 */ 7752 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7753 (lun->pr_key_count * 7754 sizeof(struct scsi_per_res_key)))){ 7755 mtx_unlock(&lun->lun_lock); 7756 free(ctsio->kern_data_ptr, M_CTL); 7757 printf("%s: reservation length changed, retrying\n", 7758 __func__); 7759 goto retry; 7760 } 7761 7762 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7763 7764 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7765 lun->pr_key_count, res_keys->header.length); 7766 7767 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7768 if (!lun->per_res[i].registered) 7769 continue; 7770 7771 /* 7772 * We used lun->pr_key_count to calculate the 7773 * size to allocate. If it turns out the number of 7774 * initiators with the registered flag set is 7775 * larger than that (i.e. they haven't been kept in 7776 * sync), we've got a problem. 7777 */ 7778 if (key_count >= lun->pr_key_count) { 7779#ifdef NEEDTOPORT 7780 csevent_log(CSC_CTL | CSC_SHELF_SW | 7781 CTL_PR_ERROR, 7782 csevent_LogType_Fault, 7783 csevent_AlertLevel_Yellow, 7784 csevent_FRU_ShelfController, 7785 csevent_FRU_Firmware, 7786 csevent_FRU_Unknown, 7787 "registered keys %d >= key " 7788 "count %d", key_count, 7789 lun->pr_key_count); 7790#endif 7791 key_count++; 7792 continue; 7793 } 7794 memcpy(res_keys->keys[key_count].key, 7795 lun->per_res[i].res_key.key, 7796 ctl_min(sizeof(res_keys->keys[key_count].key), 7797 sizeof(lun->per_res[i].res_key))); 7798 key_count++; 7799 } 7800 break; 7801 } 7802 case SPRI_RR: { // read reservation 7803 struct scsi_per_res_in_rsrv *res; 7804 int tmp_len, header_only; 7805 7806 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7807 7808 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7809 7810 if (lun->flags & CTL_LUN_PR_RESERVED) 7811 { 7812 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7813 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7814 res->header.length); 7815 header_only = 0; 7816 } else { 7817 tmp_len = sizeof(struct scsi_per_res_in_header); 7818 scsi_ulto4b(0, res->header.length); 7819 header_only = 1; 7820 } 7821 7822 /* 7823 * We had to drop the lock to allocate our buffer, which 7824 * leaves time for someone to come in with another 7825 * persistent reservation. (That is unlikely, though, 7826 * since this should be the only persistent reservation 7827 * command active right now.) 7828 */ 7829 if (tmp_len != total_len) { 7830 mtx_unlock(&lun->lun_lock); 7831 free(ctsio->kern_data_ptr, M_CTL); 7832 printf("%s: reservation status changed, retrying\n", 7833 __func__); 7834 goto retry; 7835 } 7836 7837 /* 7838 * No reservation held, so we're done. 7839 */ 7840 if (header_only != 0) 7841 break; 7842 7843 /* 7844 * If the registration is an All Registrants type, the key 7845 * is 0, since it doesn't really matter. 7846 */ 7847 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7848 memcpy(res->data.reservation, 7849 &lun->per_res[lun->pr_res_idx].res_key, 7850 sizeof(struct scsi_per_res_key)); 7851 } 7852 res->data.scopetype = lun->res_type; 7853 break; 7854 } 7855 case SPRI_RC: //report capabilities 7856 { 7857 struct scsi_per_res_cap *res_cap; 7858 uint16_t type_mask; 7859 7860 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7861 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7862 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7863 type_mask = SPRI_TM_WR_EX_AR | 7864 SPRI_TM_EX_AC_RO | 7865 SPRI_TM_WR_EX_RO | 7866 SPRI_TM_EX_AC | 7867 SPRI_TM_WR_EX | 7868 SPRI_TM_EX_AC_AR; 7869 scsi_ulto2b(type_mask, res_cap->type_mask); 7870 break; 7871 } 7872 case SPRI_RS: { // read full status 7873 struct scsi_per_res_in_full *res_status; 7874 struct scsi_per_res_in_full_desc *res_desc; 7875 struct ctl_port *port; 7876 int i, len; 7877 7878 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7879 7880 /* 7881 * We had to drop the lock to allocate our buffer, which 7882 * leaves time for someone to come in with another 7883 * persistent reservation. (That is unlikely, though, 7884 * since this should be the only persistent reservation 7885 * command active right now.) 7886 */ 7887 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7888 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7889 lun->pr_key_count)){ 7890 mtx_unlock(&lun->lun_lock); 7891 free(ctsio->kern_data_ptr, M_CTL); 7892 printf("%s: reservation length changed, retrying\n", 7893 __func__); 7894 goto retry; 7895 } 7896 7897 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7898 7899 res_desc = &res_status->desc[0]; 7900 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7901 if (!lun->per_res[i].registered) 7902 continue; 7903 7904 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7905 sizeof(res_desc->res_key)); 7906 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7907 (lun->pr_res_idx == i || 7908 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7909 res_desc->flags = SPRI_FULL_R_HOLDER; 7910 res_desc->scopetype = lun->res_type; 7911 } 7912 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7913 res_desc->rel_trgt_port_id); 7914 len = 0; 7915 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7916 if (port != NULL) 7917 len = ctl_create_iid(port, 7918 i % CTL_MAX_INIT_PER_PORT, 7919 res_desc->transport_id); 7920 scsi_ulto4b(len, res_desc->additional_length); 7921 res_desc = (struct scsi_per_res_in_full_desc *) 7922 &res_desc->transport_id[len]; 7923 } 7924 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7925 res_status->header.length); 7926 break; 7927 } 7928 default: 7929 /* 7930 * This is a bug, because we just checked for this above, 7931 * and should have returned an error. 7932 */ 7933 panic("Invalid PR type %x", cdb->action); 7934 break; /* NOTREACHED */ 7935 } 7936 mtx_unlock(&lun->lun_lock); 7937 7938 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7939 ctsio->be_move_done = ctl_config_move_done; 7940 7941 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7942 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7943 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7944 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7945 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7946 7947 ctl_datamove((union ctl_io *)ctsio); 7948 7949 return (CTL_RETVAL_COMPLETE); 7950} 7951 7952/* 7953 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7954 * it should return. 7955 */ 7956static int 7957ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7958 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7959 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7960 struct scsi_per_res_out_parms* param) 7961{ 7962 union ctl_ha_msg persis_io; 7963 int retval, i; 7964 int isc_retval; 7965 7966 retval = 0; 7967 7968 mtx_lock(&lun->lun_lock); 7969 if (sa_res_key == 0) { 7970 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7971 /* validate scope and type */ 7972 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7973 SPR_LU_SCOPE) { 7974 mtx_unlock(&lun->lun_lock); 7975 ctl_set_invalid_field(/*ctsio*/ ctsio, 7976 /*sks_valid*/ 1, 7977 /*command*/ 1, 7978 /*field*/ 2, 7979 /*bit_valid*/ 1, 7980 /*bit*/ 4); 7981 ctl_done((union ctl_io *)ctsio); 7982 return (1); 7983 } 7984 7985 if (type>8 || type==2 || type==4 || type==0) { 7986 mtx_unlock(&lun->lun_lock); 7987 ctl_set_invalid_field(/*ctsio*/ ctsio, 7988 /*sks_valid*/ 1, 7989 /*command*/ 1, 7990 /*field*/ 2, 7991 /*bit_valid*/ 1, 7992 /*bit*/ 0); 7993 ctl_done((union ctl_io *)ctsio); 7994 return (1); 7995 } 7996 7997 /* temporarily unregister this nexus */ 7998 lun->per_res[residx].registered = 0; 7999 8000 /* 8001 * Unregister everybody else and build UA for 8002 * them 8003 */ 8004 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8005 if (lun->per_res[i].registered == 0) 8006 continue; 8007 8008 if (!persis_offset 8009 && i <CTL_MAX_INITIATORS) 8010 lun->pending_ua[i] |= 8011 CTL_UA_REG_PREEMPT; 8012 else if (persis_offset 8013 && i >= persis_offset) 8014 lun->pending_ua[i-persis_offset] |= 8015 CTL_UA_REG_PREEMPT; 8016 lun->per_res[i].registered = 0; 8017 memset(&lun->per_res[i].res_key, 0, 8018 sizeof(struct scsi_per_res_key)); 8019 } 8020 lun->per_res[residx].registered = 1; 8021 lun->pr_key_count = 1; 8022 lun->res_type = type; 8023 if (lun->res_type != SPR_TYPE_WR_EX_AR 8024 && lun->res_type != SPR_TYPE_EX_AC_AR) 8025 lun->pr_res_idx = residx; 8026 8027 /* send msg to other side */ 8028 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8029 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8030 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8031 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8032 persis_io.pr.pr_info.res_type = type; 8033 memcpy(persis_io.pr.pr_info.sa_res_key, 8034 param->serv_act_res_key, 8035 sizeof(param->serv_act_res_key)); 8036 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8037 &persis_io, sizeof(persis_io), 0)) > 8038 CTL_HA_STATUS_SUCCESS) { 8039 printf("CTL:Persis Out error returned " 8040 "from ctl_ha_msg_send %d\n", 8041 isc_retval); 8042 } 8043 } else { 8044 /* not all registrants */ 8045 mtx_unlock(&lun->lun_lock); 8046 free(ctsio->kern_data_ptr, M_CTL); 8047 ctl_set_invalid_field(ctsio, 8048 /*sks_valid*/ 1, 8049 /*command*/ 0, 8050 /*field*/ 8, 8051 /*bit_valid*/ 0, 8052 /*bit*/ 0); 8053 ctl_done((union ctl_io *)ctsio); 8054 return (1); 8055 } 8056 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8057 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8058 int found = 0; 8059 8060 if (res_key == sa_res_key) { 8061 /* special case */ 8062 /* 8063 * The spec implies this is not good but doesn't 8064 * say what to do. There are two choices either 8065 * generate a res conflict or check condition 8066 * with illegal field in parameter data. Since 8067 * that is what is done when the sa_res_key is 8068 * zero I'll take that approach since this has 8069 * to do with the sa_res_key. 8070 */ 8071 mtx_unlock(&lun->lun_lock); 8072 free(ctsio->kern_data_ptr, M_CTL); 8073 ctl_set_invalid_field(ctsio, 8074 /*sks_valid*/ 1, 8075 /*command*/ 0, 8076 /*field*/ 8, 8077 /*bit_valid*/ 0, 8078 /*bit*/ 0); 8079 ctl_done((union ctl_io *)ctsio); 8080 return (1); 8081 } 8082 8083 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8084 if (lun->per_res[i].registered 8085 && memcmp(param->serv_act_res_key, 8086 lun->per_res[i].res_key.key, 8087 sizeof(struct scsi_per_res_key)) != 0) 8088 continue; 8089 8090 found = 1; 8091 lun->per_res[i].registered = 0; 8092 memset(&lun->per_res[i].res_key, 0, 8093 sizeof(struct scsi_per_res_key)); 8094 lun->pr_key_count--; 8095 8096 if (!persis_offset && i < CTL_MAX_INITIATORS) 8097 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8098 else if (persis_offset && i >= persis_offset) 8099 lun->pending_ua[i-persis_offset] |= 8100 CTL_UA_REG_PREEMPT; 8101 } 8102 if (!found) { 8103 mtx_unlock(&lun->lun_lock); 8104 free(ctsio->kern_data_ptr, M_CTL); 8105 ctl_set_reservation_conflict(ctsio); 8106 ctl_done((union ctl_io *)ctsio); 8107 return (CTL_RETVAL_COMPLETE); 8108 } 8109 /* send msg to other side */ 8110 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8111 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8112 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8113 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8114 persis_io.pr.pr_info.res_type = type; 8115 memcpy(persis_io.pr.pr_info.sa_res_key, 8116 param->serv_act_res_key, 8117 sizeof(param->serv_act_res_key)); 8118 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8119 &persis_io, sizeof(persis_io), 0)) > 8120 CTL_HA_STATUS_SUCCESS) { 8121 printf("CTL:Persis Out error returned from " 8122 "ctl_ha_msg_send %d\n", isc_retval); 8123 } 8124 } else { 8125 /* Reserved but not all registrants */ 8126 /* sa_res_key is res holder */ 8127 if (memcmp(param->serv_act_res_key, 8128 lun->per_res[lun->pr_res_idx].res_key.key, 8129 sizeof(struct scsi_per_res_key)) == 0) { 8130 /* validate scope and type */ 8131 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8132 SPR_LU_SCOPE) { 8133 mtx_unlock(&lun->lun_lock); 8134 ctl_set_invalid_field(/*ctsio*/ ctsio, 8135 /*sks_valid*/ 1, 8136 /*command*/ 1, 8137 /*field*/ 2, 8138 /*bit_valid*/ 1, 8139 /*bit*/ 4); 8140 ctl_done((union ctl_io *)ctsio); 8141 return (1); 8142 } 8143 8144 if (type>8 || type==2 || type==4 || type==0) { 8145 mtx_unlock(&lun->lun_lock); 8146 ctl_set_invalid_field(/*ctsio*/ ctsio, 8147 /*sks_valid*/ 1, 8148 /*command*/ 1, 8149 /*field*/ 2, 8150 /*bit_valid*/ 1, 8151 /*bit*/ 0); 8152 ctl_done((union ctl_io *)ctsio); 8153 return (1); 8154 } 8155 8156 /* 8157 * Do the following: 8158 * if sa_res_key != res_key remove all 8159 * registrants w/sa_res_key and generate UA 8160 * for these registrants(Registrations 8161 * Preempted) if it wasn't an exclusive 8162 * reservation generate UA(Reservations 8163 * Preempted) for all other registered nexuses 8164 * if the type has changed. Establish the new 8165 * reservation and holder. If res_key and 8166 * sa_res_key are the same do the above 8167 * except don't unregister the res holder. 8168 */ 8169 8170 /* 8171 * Temporarily unregister so it won't get 8172 * removed or UA generated 8173 */ 8174 lun->per_res[residx].registered = 0; 8175 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8176 if (lun->per_res[i].registered == 0) 8177 continue; 8178 8179 if (memcmp(param->serv_act_res_key, 8180 lun->per_res[i].res_key.key, 8181 sizeof(struct scsi_per_res_key)) == 0) { 8182 lun->per_res[i].registered = 0; 8183 memset(&lun->per_res[i].res_key, 8184 0, 8185 sizeof(struct scsi_per_res_key)); 8186 lun->pr_key_count--; 8187 8188 if (!persis_offset 8189 && i < CTL_MAX_INITIATORS) 8190 lun->pending_ua[i] |= 8191 CTL_UA_REG_PREEMPT; 8192 else if (persis_offset 8193 && i >= persis_offset) 8194 lun->pending_ua[i-persis_offset] |= 8195 CTL_UA_REG_PREEMPT; 8196 } else if (type != lun->res_type 8197 && (lun->res_type == SPR_TYPE_WR_EX_RO 8198 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8199 if (!persis_offset 8200 && i < CTL_MAX_INITIATORS) 8201 lun->pending_ua[i] |= 8202 CTL_UA_RES_RELEASE; 8203 else if (persis_offset 8204 && i >= persis_offset) 8205 lun->pending_ua[ 8206 i-persis_offset] |= 8207 CTL_UA_RES_RELEASE; 8208 } 8209 } 8210 lun->per_res[residx].registered = 1; 8211 lun->res_type = type; 8212 if (lun->res_type != SPR_TYPE_WR_EX_AR 8213 && lun->res_type != SPR_TYPE_EX_AC_AR) 8214 lun->pr_res_idx = residx; 8215 else 8216 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8217 8218 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8219 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8220 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8221 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8222 persis_io.pr.pr_info.res_type = type; 8223 memcpy(persis_io.pr.pr_info.sa_res_key, 8224 param->serv_act_res_key, 8225 sizeof(param->serv_act_res_key)); 8226 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8227 &persis_io, sizeof(persis_io), 0)) > 8228 CTL_HA_STATUS_SUCCESS) { 8229 printf("CTL:Persis Out error returned " 8230 "from ctl_ha_msg_send %d\n", 8231 isc_retval); 8232 } 8233 } else { 8234 /* 8235 * sa_res_key is not the res holder just 8236 * remove registrants 8237 */ 8238 int found=0; 8239 8240 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8241 if (memcmp(param->serv_act_res_key, 8242 lun->per_res[i].res_key.key, 8243 sizeof(struct scsi_per_res_key)) != 0) 8244 continue; 8245 8246 found = 1; 8247 lun->per_res[i].registered = 0; 8248 memset(&lun->per_res[i].res_key, 0, 8249 sizeof(struct scsi_per_res_key)); 8250 lun->pr_key_count--; 8251 8252 if (!persis_offset 8253 && i < CTL_MAX_INITIATORS) 8254 lun->pending_ua[i] |= 8255 CTL_UA_REG_PREEMPT; 8256 else if (persis_offset 8257 && i >= persis_offset) 8258 lun->pending_ua[i-persis_offset] |= 8259 CTL_UA_REG_PREEMPT; 8260 } 8261 8262 if (!found) { 8263 mtx_unlock(&lun->lun_lock); 8264 free(ctsio->kern_data_ptr, M_CTL); 8265 ctl_set_reservation_conflict(ctsio); 8266 ctl_done((union ctl_io *)ctsio); 8267 return (1); 8268 } 8269 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8270 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8271 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8272 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8273 persis_io.pr.pr_info.res_type = type; 8274 memcpy(persis_io.pr.pr_info.sa_res_key, 8275 param->serv_act_res_key, 8276 sizeof(param->serv_act_res_key)); 8277 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8278 &persis_io, sizeof(persis_io), 0)) > 8279 CTL_HA_STATUS_SUCCESS) { 8280 printf("CTL:Persis Out error returned " 8281 "from ctl_ha_msg_send %d\n", 8282 isc_retval); 8283 } 8284 } 8285 } 8286 8287 lun->PRGeneration++; 8288 mtx_unlock(&lun->lun_lock); 8289 8290 return (retval); 8291} 8292 8293static void 8294ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8295{ 8296 int i; 8297 8298 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8299 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8300 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8301 msg->pr.pr_info.sa_res_key, 8302 sizeof(struct scsi_per_res_key)) != 0) { 8303 uint64_t sa_res_key; 8304 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8305 8306 if (sa_res_key == 0) { 8307 /* temporarily unregister this nexus */ 8308 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8309 8310 /* 8311 * Unregister everybody else and build UA for 8312 * them 8313 */ 8314 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8315 if (lun->per_res[i].registered == 0) 8316 continue; 8317 8318 if (!persis_offset 8319 && i < CTL_MAX_INITIATORS) 8320 lun->pending_ua[i] |= 8321 CTL_UA_REG_PREEMPT; 8322 else if (persis_offset && i >= persis_offset) 8323 lun->pending_ua[i - persis_offset] |= 8324 CTL_UA_REG_PREEMPT; 8325 lun->per_res[i].registered = 0; 8326 memset(&lun->per_res[i].res_key, 0, 8327 sizeof(struct scsi_per_res_key)); 8328 } 8329 8330 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8331 lun->pr_key_count = 1; 8332 lun->res_type = msg->pr.pr_info.res_type; 8333 if (lun->res_type != SPR_TYPE_WR_EX_AR 8334 && lun->res_type != SPR_TYPE_EX_AC_AR) 8335 lun->pr_res_idx = msg->pr.pr_info.residx; 8336 } else { 8337 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8338 if (memcmp(msg->pr.pr_info.sa_res_key, 8339 lun->per_res[i].res_key.key, 8340 sizeof(struct scsi_per_res_key)) != 0) 8341 continue; 8342 8343 lun->per_res[i].registered = 0; 8344 memset(&lun->per_res[i].res_key, 0, 8345 sizeof(struct scsi_per_res_key)); 8346 lun->pr_key_count--; 8347 8348 if (!persis_offset 8349 && i < persis_offset) 8350 lun->pending_ua[i] |= 8351 CTL_UA_REG_PREEMPT; 8352 else if (persis_offset 8353 && i >= persis_offset) 8354 lun->pending_ua[i - persis_offset] |= 8355 CTL_UA_REG_PREEMPT; 8356 } 8357 } 8358 } else { 8359 /* 8360 * Temporarily unregister so it won't get removed 8361 * or UA generated 8362 */ 8363 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8364 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8365 if (lun->per_res[i].registered == 0) 8366 continue; 8367 8368 if (memcmp(msg->pr.pr_info.sa_res_key, 8369 lun->per_res[i].res_key.key, 8370 sizeof(struct scsi_per_res_key)) == 0) { 8371 lun->per_res[i].registered = 0; 8372 memset(&lun->per_res[i].res_key, 0, 8373 sizeof(struct scsi_per_res_key)); 8374 lun->pr_key_count--; 8375 if (!persis_offset 8376 && i < CTL_MAX_INITIATORS) 8377 lun->pending_ua[i] |= 8378 CTL_UA_REG_PREEMPT; 8379 else if (persis_offset 8380 && i >= persis_offset) 8381 lun->pending_ua[i - persis_offset] |= 8382 CTL_UA_REG_PREEMPT; 8383 } else if (msg->pr.pr_info.res_type != lun->res_type 8384 && (lun->res_type == SPR_TYPE_WR_EX_RO 8385 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8386 if (!persis_offset 8387 && i < persis_offset) 8388 lun->pending_ua[i] |= 8389 CTL_UA_RES_RELEASE; 8390 else if (persis_offset 8391 && i >= persis_offset) 8392 lun->pending_ua[i - persis_offset] |= 8393 CTL_UA_RES_RELEASE; 8394 } 8395 } 8396 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8397 lun->res_type = msg->pr.pr_info.res_type; 8398 if (lun->res_type != SPR_TYPE_WR_EX_AR 8399 && lun->res_type != SPR_TYPE_EX_AC_AR) 8400 lun->pr_res_idx = msg->pr.pr_info.residx; 8401 else 8402 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8403 } 8404 lun->PRGeneration++; 8405 8406} 8407 8408 8409int 8410ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8411{ 8412 int retval; 8413 int isc_retval; 8414 u_int32_t param_len; 8415 struct scsi_per_res_out *cdb; 8416 struct ctl_lun *lun; 8417 struct scsi_per_res_out_parms* param; 8418 struct ctl_softc *softc; 8419 uint32_t residx; 8420 uint64_t res_key, sa_res_key; 8421 uint8_t type; 8422 union ctl_ha_msg persis_io; 8423 int i; 8424 8425 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8426 8427 retval = CTL_RETVAL_COMPLETE; 8428 8429 softc = control_softc; 8430 8431 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8432 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8433 8434 /* 8435 * We only support whole-LUN scope. The scope & type are ignored for 8436 * register, register and ignore existing key and clear. 8437 * We sometimes ignore scope and type on preempts too!! 8438 * Verify reservation type here as well. 8439 */ 8440 type = cdb->scope_type & SPR_TYPE_MASK; 8441 if ((cdb->action == SPRO_RESERVE) 8442 || (cdb->action == SPRO_RELEASE)) { 8443 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8444 ctl_set_invalid_field(/*ctsio*/ ctsio, 8445 /*sks_valid*/ 1, 8446 /*command*/ 1, 8447 /*field*/ 2, 8448 /*bit_valid*/ 1, 8449 /*bit*/ 4); 8450 ctl_done((union ctl_io *)ctsio); 8451 return (CTL_RETVAL_COMPLETE); 8452 } 8453 8454 if (type>8 || type==2 || type==4 || type==0) { 8455 ctl_set_invalid_field(/*ctsio*/ ctsio, 8456 /*sks_valid*/ 1, 8457 /*command*/ 1, 8458 /*field*/ 2, 8459 /*bit_valid*/ 1, 8460 /*bit*/ 0); 8461 ctl_done((union ctl_io *)ctsio); 8462 return (CTL_RETVAL_COMPLETE); 8463 } 8464 } 8465 8466 param_len = scsi_4btoul(cdb->length); 8467 8468 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8469 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8470 ctsio->kern_data_len = param_len; 8471 ctsio->kern_total_len = param_len; 8472 ctsio->kern_data_resid = 0; 8473 ctsio->kern_rel_offset = 0; 8474 ctsio->kern_sg_entries = 0; 8475 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8476 ctsio->be_move_done = ctl_config_move_done; 8477 ctl_datamove((union ctl_io *)ctsio); 8478 8479 return (CTL_RETVAL_COMPLETE); 8480 } 8481 8482 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8483 8484 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8485 res_key = scsi_8btou64(param->res_key.key); 8486 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8487 8488 /* 8489 * Validate the reservation key here except for SPRO_REG_IGNO 8490 * This must be done for all other service actions 8491 */ 8492 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8493 mtx_lock(&lun->lun_lock); 8494 if (lun->per_res[residx].registered) { 8495 if (memcmp(param->res_key.key, 8496 lun->per_res[residx].res_key.key, 8497 ctl_min(sizeof(param->res_key), 8498 sizeof(lun->per_res[residx].res_key))) != 0) { 8499 /* 8500 * The current key passed in doesn't match 8501 * the one the initiator previously 8502 * registered. 8503 */ 8504 mtx_unlock(&lun->lun_lock); 8505 free(ctsio->kern_data_ptr, M_CTL); 8506 ctl_set_reservation_conflict(ctsio); 8507 ctl_done((union ctl_io *)ctsio); 8508 return (CTL_RETVAL_COMPLETE); 8509 } 8510 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8511 /* 8512 * We are not registered 8513 */ 8514 mtx_unlock(&lun->lun_lock); 8515 free(ctsio->kern_data_ptr, M_CTL); 8516 ctl_set_reservation_conflict(ctsio); 8517 ctl_done((union ctl_io *)ctsio); 8518 return (CTL_RETVAL_COMPLETE); 8519 } else if (res_key != 0) { 8520 /* 8521 * We are not registered and trying to register but 8522 * the register key isn't zero. 8523 */ 8524 mtx_unlock(&lun->lun_lock); 8525 free(ctsio->kern_data_ptr, M_CTL); 8526 ctl_set_reservation_conflict(ctsio); 8527 ctl_done((union ctl_io *)ctsio); 8528 return (CTL_RETVAL_COMPLETE); 8529 } 8530 mtx_unlock(&lun->lun_lock); 8531 } 8532 8533 switch (cdb->action & SPRO_ACTION_MASK) { 8534 case SPRO_REGISTER: 8535 case SPRO_REG_IGNO: { 8536 8537#if 0 8538 printf("Registration received\n"); 8539#endif 8540 8541 /* 8542 * We don't support any of these options, as we report in 8543 * the read capabilities request (see 8544 * ctl_persistent_reserve_in(), above). 8545 */ 8546 if ((param->flags & SPR_SPEC_I_PT) 8547 || (param->flags & SPR_ALL_TG_PT) 8548 || (param->flags & SPR_APTPL)) { 8549 int bit_ptr; 8550 8551 if (param->flags & SPR_APTPL) 8552 bit_ptr = 0; 8553 else if (param->flags & SPR_ALL_TG_PT) 8554 bit_ptr = 2; 8555 else /* SPR_SPEC_I_PT */ 8556 bit_ptr = 3; 8557 8558 free(ctsio->kern_data_ptr, M_CTL); 8559 ctl_set_invalid_field(ctsio, 8560 /*sks_valid*/ 1, 8561 /*command*/ 0, 8562 /*field*/ 20, 8563 /*bit_valid*/ 1, 8564 /*bit*/ bit_ptr); 8565 ctl_done((union ctl_io *)ctsio); 8566 return (CTL_RETVAL_COMPLETE); 8567 } 8568 8569 mtx_lock(&lun->lun_lock); 8570 8571 /* 8572 * The initiator wants to clear the 8573 * key/unregister. 8574 */ 8575 if (sa_res_key == 0) { 8576 if ((res_key == 0 8577 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8578 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8579 && !lun->per_res[residx].registered)) { 8580 mtx_unlock(&lun->lun_lock); 8581 goto done; 8582 } 8583 8584 lun->per_res[residx].registered = 0; 8585 memset(&lun->per_res[residx].res_key, 8586 0, sizeof(lun->per_res[residx].res_key)); 8587 lun->pr_key_count--; 8588 8589 if (residx == lun->pr_res_idx) { 8590 lun->flags &= ~CTL_LUN_PR_RESERVED; 8591 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8592 8593 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8594 || lun->res_type == SPR_TYPE_EX_AC_RO) 8595 && lun->pr_key_count) { 8596 /* 8597 * If the reservation is a registrants 8598 * only type we need to generate a UA 8599 * for other registered inits. The 8600 * sense code should be RESERVATIONS 8601 * RELEASED 8602 */ 8603 8604 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8605 if (lun->per_res[ 8606 i+persis_offset].registered 8607 == 0) 8608 continue; 8609 lun->pending_ua[i] |= 8610 CTL_UA_RES_RELEASE; 8611 } 8612 } 8613 lun->res_type = 0; 8614 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8615 if (lun->pr_key_count==0) { 8616 lun->flags &= ~CTL_LUN_PR_RESERVED; 8617 lun->res_type = 0; 8618 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8619 } 8620 } 8621 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8622 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8623 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8624 persis_io.pr.pr_info.residx = residx; 8625 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8626 &persis_io, sizeof(persis_io), 0 )) > 8627 CTL_HA_STATUS_SUCCESS) { 8628 printf("CTL:Persis Out error returned from " 8629 "ctl_ha_msg_send %d\n", isc_retval); 8630 } 8631 } else /* sa_res_key != 0 */ { 8632 8633 /* 8634 * If we aren't registered currently then increment 8635 * the key count and set the registered flag. 8636 */ 8637 if (!lun->per_res[residx].registered) { 8638 lun->pr_key_count++; 8639 lun->per_res[residx].registered = 1; 8640 } 8641 8642 memcpy(&lun->per_res[residx].res_key, 8643 param->serv_act_res_key, 8644 ctl_min(sizeof(param->serv_act_res_key), 8645 sizeof(lun->per_res[residx].res_key))); 8646 8647 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8648 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8649 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8650 persis_io.pr.pr_info.residx = residx; 8651 memcpy(persis_io.pr.pr_info.sa_res_key, 8652 param->serv_act_res_key, 8653 sizeof(param->serv_act_res_key)); 8654 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8655 &persis_io, sizeof(persis_io), 0)) > 8656 CTL_HA_STATUS_SUCCESS) { 8657 printf("CTL:Persis Out error returned from " 8658 "ctl_ha_msg_send %d\n", isc_retval); 8659 } 8660 } 8661 lun->PRGeneration++; 8662 mtx_unlock(&lun->lun_lock); 8663 8664 break; 8665 } 8666 case SPRO_RESERVE: 8667#if 0 8668 printf("Reserve executed type %d\n", type); 8669#endif 8670 mtx_lock(&lun->lun_lock); 8671 if (lun->flags & CTL_LUN_PR_RESERVED) { 8672 /* 8673 * if this isn't the reservation holder and it's 8674 * not a "all registrants" type or if the type is 8675 * different then we have a conflict 8676 */ 8677 if ((lun->pr_res_idx != residx 8678 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8679 || lun->res_type != type) { 8680 mtx_unlock(&lun->lun_lock); 8681 free(ctsio->kern_data_ptr, M_CTL); 8682 ctl_set_reservation_conflict(ctsio); 8683 ctl_done((union ctl_io *)ctsio); 8684 return (CTL_RETVAL_COMPLETE); 8685 } 8686 mtx_unlock(&lun->lun_lock); 8687 } else /* create a reservation */ { 8688 /* 8689 * If it's not an "all registrants" type record 8690 * reservation holder 8691 */ 8692 if (type != SPR_TYPE_WR_EX_AR 8693 && type != SPR_TYPE_EX_AC_AR) 8694 lun->pr_res_idx = residx; /* Res holder */ 8695 else 8696 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8697 8698 lun->flags |= CTL_LUN_PR_RESERVED; 8699 lun->res_type = type; 8700 8701 mtx_unlock(&lun->lun_lock); 8702 8703 /* send msg to other side */ 8704 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8705 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8706 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8707 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8708 persis_io.pr.pr_info.res_type = type; 8709 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8710 &persis_io, sizeof(persis_io), 0)) > 8711 CTL_HA_STATUS_SUCCESS) { 8712 printf("CTL:Persis Out error returned from " 8713 "ctl_ha_msg_send %d\n", isc_retval); 8714 } 8715 } 8716 break; 8717 8718 case SPRO_RELEASE: 8719 mtx_lock(&lun->lun_lock); 8720 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8721 /* No reservation exists return good status */ 8722 mtx_unlock(&lun->lun_lock); 8723 goto done; 8724 } 8725 /* 8726 * Is this nexus a reservation holder? 8727 */ 8728 if (lun->pr_res_idx != residx 8729 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8730 /* 8731 * not a res holder return good status but 8732 * do nothing 8733 */ 8734 mtx_unlock(&lun->lun_lock); 8735 goto done; 8736 } 8737 8738 if (lun->res_type != type) { 8739 mtx_unlock(&lun->lun_lock); 8740 free(ctsio->kern_data_ptr, M_CTL); 8741 ctl_set_illegal_pr_release(ctsio); 8742 ctl_done((union ctl_io *)ctsio); 8743 return (CTL_RETVAL_COMPLETE); 8744 } 8745 8746 /* okay to release */ 8747 lun->flags &= ~CTL_LUN_PR_RESERVED; 8748 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8749 lun->res_type = 0; 8750 8751 /* 8752 * if this isn't an exclusive access 8753 * res generate UA for all other 8754 * registrants. 8755 */ 8756 if (type != SPR_TYPE_EX_AC 8757 && type != SPR_TYPE_WR_EX) { 8758 /* 8759 * temporarily unregister so we don't generate UA 8760 */ 8761 lun->per_res[residx].registered = 0; 8762 8763 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8764 if (lun->per_res[i+persis_offset].registered 8765 == 0) 8766 continue; 8767 lun->pending_ua[i] |= 8768 CTL_UA_RES_RELEASE; 8769 } 8770 8771 lun->per_res[residx].registered = 1; 8772 } 8773 mtx_unlock(&lun->lun_lock); 8774 /* Send msg to other side */ 8775 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8776 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8777 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8778 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8779 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8780 printf("CTL:Persis Out error returned from " 8781 "ctl_ha_msg_send %d\n", isc_retval); 8782 } 8783 break; 8784 8785 case SPRO_CLEAR: 8786 /* send msg to other side */ 8787 8788 mtx_lock(&lun->lun_lock); 8789 lun->flags &= ~CTL_LUN_PR_RESERVED; 8790 lun->res_type = 0; 8791 lun->pr_key_count = 0; 8792 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8793 8794 8795 memset(&lun->per_res[residx].res_key, 8796 0, sizeof(lun->per_res[residx].res_key)); 8797 lun->per_res[residx].registered = 0; 8798 8799 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8800 if (lun->per_res[i].registered) { 8801 if (!persis_offset && i < CTL_MAX_INITIATORS) 8802 lun->pending_ua[i] |= 8803 CTL_UA_RES_PREEMPT; 8804 else if (persis_offset && i >= persis_offset) 8805 lun->pending_ua[i-persis_offset] |= 8806 CTL_UA_RES_PREEMPT; 8807 8808 memset(&lun->per_res[i].res_key, 8809 0, sizeof(struct scsi_per_res_key)); 8810 lun->per_res[i].registered = 0; 8811 } 8812 lun->PRGeneration++; 8813 mtx_unlock(&lun->lun_lock); 8814 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8815 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8816 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8817 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8818 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8819 printf("CTL:Persis Out error returned from " 8820 "ctl_ha_msg_send %d\n", isc_retval); 8821 } 8822 break; 8823 8824 case SPRO_PREEMPT: { 8825 int nretval; 8826 8827 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8828 residx, ctsio, cdb, param); 8829 if (nretval != 0) 8830 return (CTL_RETVAL_COMPLETE); 8831 break; 8832 } 8833 default: 8834 panic("Invalid PR type %x", cdb->action); 8835 } 8836 8837done: 8838 free(ctsio->kern_data_ptr, M_CTL); 8839 ctl_set_success(ctsio); 8840 ctl_done((union ctl_io *)ctsio); 8841 8842 return (retval); 8843} 8844 8845/* 8846 * This routine is for handling a message from the other SC pertaining to 8847 * persistent reserve out. All the error checking will have been done 8848 * so only perorming the action need be done here to keep the two 8849 * in sync. 8850 */ 8851static void 8852ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8853{ 8854 struct ctl_lun *lun; 8855 struct ctl_softc *softc; 8856 int i; 8857 uint32_t targ_lun; 8858 8859 softc = control_softc; 8860 8861 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8862 lun = softc->ctl_luns[targ_lun]; 8863 mtx_lock(&lun->lun_lock); 8864 switch(msg->pr.pr_info.action) { 8865 case CTL_PR_REG_KEY: 8866 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8867 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8868 lun->pr_key_count++; 8869 } 8870 lun->PRGeneration++; 8871 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8872 msg->pr.pr_info.sa_res_key, 8873 sizeof(struct scsi_per_res_key)); 8874 break; 8875 8876 case CTL_PR_UNREG_KEY: 8877 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8878 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8879 0, sizeof(struct scsi_per_res_key)); 8880 lun->pr_key_count--; 8881 8882 /* XXX Need to see if the reservation has been released */ 8883 /* if so do we need to generate UA? */ 8884 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8885 lun->flags &= ~CTL_LUN_PR_RESERVED; 8886 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8887 8888 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8889 || lun->res_type == SPR_TYPE_EX_AC_RO) 8890 && lun->pr_key_count) { 8891 /* 8892 * If the reservation is a registrants 8893 * only type we need to generate a UA 8894 * for other registered inits. The 8895 * sense code should be RESERVATIONS 8896 * RELEASED 8897 */ 8898 8899 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8900 if (lun->per_res[i+ 8901 persis_offset].registered == 0) 8902 continue; 8903 8904 lun->pending_ua[i] |= 8905 CTL_UA_RES_RELEASE; 8906 } 8907 } 8908 lun->res_type = 0; 8909 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8910 if (lun->pr_key_count==0) { 8911 lun->flags &= ~CTL_LUN_PR_RESERVED; 8912 lun->res_type = 0; 8913 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8914 } 8915 } 8916 lun->PRGeneration++; 8917 break; 8918 8919 case CTL_PR_RESERVE: 8920 lun->flags |= CTL_LUN_PR_RESERVED; 8921 lun->res_type = msg->pr.pr_info.res_type; 8922 lun->pr_res_idx = msg->pr.pr_info.residx; 8923 8924 break; 8925 8926 case CTL_PR_RELEASE: 8927 /* 8928 * if this isn't an exclusive access res generate UA for all 8929 * other registrants. 8930 */ 8931 if (lun->res_type != SPR_TYPE_EX_AC 8932 && lun->res_type != SPR_TYPE_WR_EX) { 8933 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8934 if (lun->per_res[i+persis_offset].registered) 8935 lun->pending_ua[i] |= 8936 CTL_UA_RES_RELEASE; 8937 } 8938 8939 lun->flags &= ~CTL_LUN_PR_RESERVED; 8940 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8941 lun->res_type = 0; 8942 break; 8943 8944 case CTL_PR_PREEMPT: 8945 ctl_pro_preempt_other(lun, msg); 8946 break; 8947 case CTL_PR_CLEAR: 8948 lun->flags &= ~CTL_LUN_PR_RESERVED; 8949 lun->res_type = 0; 8950 lun->pr_key_count = 0; 8951 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8952 8953 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8954 if (lun->per_res[i].registered == 0) 8955 continue; 8956 if (!persis_offset 8957 && i < CTL_MAX_INITIATORS) 8958 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8959 else if (persis_offset 8960 && i >= persis_offset) 8961 lun->pending_ua[i-persis_offset] |= 8962 CTL_UA_RES_PREEMPT; 8963 memset(&lun->per_res[i].res_key, 0, 8964 sizeof(struct scsi_per_res_key)); 8965 lun->per_res[i].registered = 0; 8966 } 8967 lun->PRGeneration++; 8968 break; 8969 } 8970 8971 mtx_unlock(&lun->lun_lock); 8972} 8973 8974int 8975ctl_read_write(struct ctl_scsiio *ctsio) 8976{ 8977 struct ctl_lun *lun; 8978 struct ctl_lba_len_flags *lbalen; 8979 uint64_t lba; 8980 uint32_t num_blocks; 8981 int fua, dpo; 8982 int retval; 8983 int isread; 8984 8985 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8986 8987 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8988 8989 fua = 0; 8990 dpo = 0; 8991 8992 retval = CTL_RETVAL_COMPLETE; 8993 8994 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8995 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8996 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8997 uint32_t residx; 8998 8999 /* 9000 * XXX KDM need a lock here. 9001 */ 9002 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9003 if ((lun->res_type == SPR_TYPE_EX_AC 9004 && residx != lun->pr_res_idx) 9005 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9006 || lun->res_type == SPR_TYPE_EX_AC_AR) 9007 && !lun->per_res[residx].registered)) { 9008 ctl_set_reservation_conflict(ctsio); 9009 ctl_done((union ctl_io *)ctsio); 9010 return (CTL_RETVAL_COMPLETE); 9011 } 9012 } 9013 9014 switch (ctsio->cdb[0]) { 9015 case READ_6: 9016 case WRITE_6: { 9017 struct scsi_rw_6 *cdb; 9018 9019 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9020 9021 lba = scsi_3btoul(cdb->addr); 9022 /* only 5 bits are valid in the most significant address byte */ 9023 lba &= 0x1fffff; 9024 num_blocks = cdb->length; 9025 /* 9026 * This is correct according to SBC-2. 9027 */ 9028 if (num_blocks == 0) 9029 num_blocks = 256; 9030 break; 9031 } 9032 case READ_10: 9033 case WRITE_10: { 9034 struct scsi_rw_10 *cdb; 9035 9036 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9037 9038 if (cdb->byte2 & SRW10_FUA) 9039 fua = 1; 9040 if (cdb->byte2 & SRW10_DPO) 9041 dpo = 1; 9042 9043 lba = scsi_4btoul(cdb->addr); 9044 num_blocks = scsi_2btoul(cdb->length); 9045 break; 9046 } 9047 case WRITE_VERIFY_10: { 9048 struct scsi_write_verify_10 *cdb; 9049 9050 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9051 9052 /* 9053 * XXX KDM we should do actual write verify support at some 9054 * point. This is obviously fake, we're just translating 9055 * things to a write. So we don't even bother checking the 9056 * BYTCHK field, since we don't do any verification. If 9057 * the user asks for it, we'll just pretend we did it. 9058 */ 9059 if (cdb->byte2 & SWV_DPO) 9060 dpo = 1; 9061 9062 lba = scsi_4btoul(cdb->addr); 9063 num_blocks = scsi_2btoul(cdb->length); 9064 break; 9065 } 9066 case READ_12: 9067 case WRITE_12: { 9068 struct scsi_rw_12 *cdb; 9069 9070 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9071 9072 if (cdb->byte2 & SRW12_FUA) 9073 fua = 1; 9074 if (cdb->byte2 & SRW12_DPO) 9075 dpo = 1; 9076 lba = scsi_4btoul(cdb->addr); 9077 num_blocks = scsi_4btoul(cdb->length); 9078 break; 9079 } 9080 case WRITE_VERIFY_12: { 9081 struct scsi_write_verify_12 *cdb; 9082 9083 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9084 9085 if (cdb->byte2 & SWV_DPO) 9086 dpo = 1; 9087 9088 lba = scsi_4btoul(cdb->addr); 9089 num_blocks = scsi_4btoul(cdb->length); 9090 9091 break; 9092 } 9093 case READ_16: 9094 case WRITE_16: { 9095 struct scsi_rw_16 *cdb; 9096 9097 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9098 9099 if (cdb->byte2 & SRW12_FUA) 9100 fua = 1; 9101 if (cdb->byte2 & SRW12_DPO) 9102 dpo = 1; 9103 9104 lba = scsi_8btou64(cdb->addr); 9105 num_blocks = scsi_4btoul(cdb->length); 9106 break; 9107 } 9108 case WRITE_VERIFY_16: { 9109 struct scsi_write_verify_16 *cdb; 9110 9111 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9112 9113 if (cdb->byte2 & SWV_DPO) 9114 dpo = 1; 9115 9116 lba = scsi_8btou64(cdb->addr); 9117 num_blocks = scsi_4btoul(cdb->length); 9118 break; 9119 } 9120 default: 9121 /* 9122 * We got a command we don't support. This shouldn't 9123 * happen, commands should be filtered out above us. 9124 */ 9125 ctl_set_invalid_opcode(ctsio); 9126 ctl_done((union ctl_io *)ctsio); 9127 9128 return (CTL_RETVAL_COMPLETE); 9129 break; /* NOTREACHED */ 9130 } 9131 9132 /* 9133 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9134 * interesting for us, but if RAIDCore is in write-back mode, 9135 * getting it to do write-through for a particular transaction may 9136 * not be possible. 9137 */ 9138 9139 /* 9140 * The first check is to make sure we're in bounds, the second 9141 * check is to catch wrap-around problems. If the lba + num blocks 9142 * is less than the lba, then we've wrapped around and the block 9143 * range is invalid anyway. 9144 */ 9145 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9146 || ((lba + num_blocks) < lba)) { 9147 ctl_set_lba_out_of_range(ctsio); 9148 ctl_done((union ctl_io *)ctsio); 9149 return (CTL_RETVAL_COMPLETE); 9150 } 9151 9152 /* 9153 * According to SBC-3, a transfer length of 0 is not an error. 9154 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9155 * translates to 256 blocks for those commands. 9156 */ 9157 if (num_blocks == 0) { 9158 ctl_set_success(ctsio); 9159 ctl_done((union ctl_io *)ctsio); 9160 return (CTL_RETVAL_COMPLETE); 9161 } 9162 9163 lbalen = (struct ctl_lba_len_flags *) 9164 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9165 lbalen->lba = lba; 9166 lbalen->len = num_blocks; 9167 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 9168 9169 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9170 ctsio->kern_rel_offset = 0; 9171 9172 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9173 9174 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9175 9176 return (retval); 9177} 9178 9179static int 9180ctl_cnw_cont(union ctl_io *io) 9181{ 9182 struct ctl_scsiio *ctsio; 9183 struct ctl_lun *lun; 9184 struct ctl_lba_len_flags *lbalen; 9185 int retval; 9186 9187 ctsio = &io->scsiio; 9188 ctsio->io_hdr.status = CTL_STATUS_NONE; 9189 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9190 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9191 lbalen = (struct ctl_lba_len_flags *) 9192 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9193 lbalen->flags = CTL_LLF_WRITE; 9194 9195 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9196 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9197 return (retval); 9198} 9199 9200int 9201ctl_cnw(struct ctl_scsiio *ctsio) 9202{ 9203 struct ctl_lun *lun; 9204 struct ctl_lba_len_flags *lbalen; 9205 uint64_t lba; 9206 uint32_t num_blocks; 9207 int fua, dpo; 9208 int retval; 9209 9210 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9211 9212 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9213 9214 fua = 0; 9215 dpo = 0; 9216 9217 retval = CTL_RETVAL_COMPLETE; 9218 9219 switch (ctsio->cdb[0]) { 9220 case COMPARE_AND_WRITE: { 9221 struct scsi_compare_and_write *cdb; 9222 9223 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9224 9225 if (cdb->byte2 & SRW10_FUA) 9226 fua = 1; 9227 if (cdb->byte2 & SRW10_DPO) 9228 dpo = 1; 9229 lba = scsi_8btou64(cdb->addr); 9230 num_blocks = cdb->length; 9231 break; 9232 } 9233 default: 9234 /* 9235 * We got a command we don't support. This shouldn't 9236 * happen, commands should be filtered out above us. 9237 */ 9238 ctl_set_invalid_opcode(ctsio); 9239 ctl_done((union ctl_io *)ctsio); 9240 9241 return (CTL_RETVAL_COMPLETE); 9242 break; /* NOTREACHED */ 9243 } 9244 9245 /* 9246 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9247 * interesting for us, but if RAIDCore is in write-back mode, 9248 * getting it to do write-through for a particular transaction may 9249 * not be possible. 9250 */ 9251 9252 /* 9253 * The first check is to make sure we're in bounds, the second 9254 * check is to catch wrap-around problems. If the lba + num blocks 9255 * is less than the lba, then we've wrapped around and the block 9256 * range is invalid anyway. 9257 */ 9258 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9259 || ((lba + num_blocks) < lba)) { 9260 ctl_set_lba_out_of_range(ctsio); 9261 ctl_done((union ctl_io *)ctsio); 9262 return (CTL_RETVAL_COMPLETE); 9263 } 9264 9265 /* 9266 * According to SBC-3, a transfer length of 0 is not an error. 9267 */ 9268 if (num_blocks == 0) { 9269 ctl_set_success(ctsio); 9270 ctl_done((union ctl_io *)ctsio); 9271 return (CTL_RETVAL_COMPLETE); 9272 } 9273 9274 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9275 ctsio->kern_rel_offset = 0; 9276 9277 /* 9278 * Set the IO_CONT flag, so that if this I/O gets passed to 9279 * ctl_data_submit_done(), it'll get passed back to 9280 * ctl_ctl_cnw_cont() for further processing. 9281 */ 9282 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9283 ctsio->io_cont = ctl_cnw_cont; 9284 9285 lbalen = (struct ctl_lba_len_flags *) 9286 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9287 lbalen->lba = lba; 9288 lbalen->len = num_blocks; 9289 lbalen->flags = CTL_LLF_COMPARE; 9290 9291 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9292 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9293 return (retval); 9294} 9295 9296int 9297ctl_verify(struct ctl_scsiio *ctsio) 9298{ 9299 struct ctl_lun *lun; 9300 struct ctl_lba_len_flags *lbalen; 9301 uint64_t lba; 9302 uint32_t num_blocks; 9303 int bytchk, dpo; 9304 int retval; 9305 9306 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9307 9308 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9309 9310 bytchk = 0; 9311 dpo = 0; 9312 retval = CTL_RETVAL_COMPLETE; 9313 9314 switch (ctsio->cdb[0]) { 9315 case VERIFY_10: { 9316 struct scsi_verify_10 *cdb; 9317 9318 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9319 if (cdb->byte2 & SVFY_BYTCHK) 9320 bytchk = 1; 9321 if (cdb->byte2 & SVFY_DPO) 9322 dpo = 1; 9323 lba = scsi_4btoul(cdb->addr); 9324 num_blocks = scsi_2btoul(cdb->length); 9325 break; 9326 } 9327 case VERIFY_12: { 9328 struct scsi_verify_12 *cdb; 9329 9330 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9331 if (cdb->byte2 & SVFY_BYTCHK) 9332 bytchk = 1; 9333 if (cdb->byte2 & SVFY_DPO) 9334 dpo = 1; 9335 lba = scsi_4btoul(cdb->addr); 9336 num_blocks = scsi_4btoul(cdb->length); 9337 break; 9338 } 9339 case VERIFY_16: { 9340 struct scsi_rw_16 *cdb; 9341 9342 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9343 if (cdb->byte2 & SVFY_BYTCHK) 9344 bytchk = 1; 9345 if (cdb->byte2 & SVFY_DPO) 9346 dpo = 1; 9347 lba = scsi_8btou64(cdb->addr); 9348 num_blocks = scsi_4btoul(cdb->length); 9349 break; 9350 } 9351 default: 9352 /* 9353 * We got a command we don't support. This shouldn't 9354 * happen, commands should be filtered out above us. 9355 */ 9356 ctl_set_invalid_opcode(ctsio); 9357 ctl_done((union ctl_io *)ctsio); 9358 return (CTL_RETVAL_COMPLETE); 9359 } 9360 9361 /* 9362 * The first check is to make sure we're in bounds, the second 9363 * check is to catch wrap-around problems. If the lba + num blocks 9364 * is less than the lba, then we've wrapped around and the block 9365 * range is invalid anyway. 9366 */ 9367 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9368 || ((lba + num_blocks) < lba)) { 9369 ctl_set_lba_out_of_range(ctsio); 9370 ctl_done((union ctl_io *)ctsio); 9371 return (CTL_RETVAL_COMPLETE); 9372 } 9373 9374 /* 9375 * According to SBC-3, a transfer length of 0 is not an error. 9376 */ 9377 if (num_blocks == 0) { 9378 ctl_set_success(ctsio); 9379 ctl_done((union ctl_io *)ctsio); 9380 return (CTL_RETVAL_COMPLETE); 9381 } 9382 9383 lbalen = (struct ctl_lba_len_flags *) 9384 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9385 lbalen->lba = lba; 9386 lbalen->len = num_blocks; 9387 if (bytchk) { 9388 lbalen->flags = CTL_LLF_COMPARE; 9389 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9390 } else { 9391 lbalen->flags = CTL_LLF_VERIFY; 9392 ctsio->kern_total_len = 0; 9393 } 9394 ctsio->kern_rel_offset = 0; 9395 9396 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9397 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9398 return (retval); 9399} 9400 9401int 9402ctl_report_luns(struct ctl_scsiio *ctsio) 9403{ 9404 struct scsi_report_luns *cdb; 9405 struct scsi_report_luns_data *lun_data; 9406 struct ctl_lun *lun, *request_lun; 9407 int num_luns, retval; 9408 uint32_t alloc_len, lun_datalen; 9409 int num_filled, well_known; 9410 uint32_t initidx, targ_lun_id, lun_id; 9411 9412 retval = CTL_RETVAL_COMPLETE; 9413 well_known = 0; 9414 9415 cdb = (struct scsi_report_luns *)ctsio->cdb; 9416 9417 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9418 9419 mtx_lock(&control_softc->ctl_lock); 9420 num_luns = control_softc->num_luns; 9421 mtx_unlock(&control_softc->ctl_lock); 9422 9423 switch (cdb->select_report) { 9424 case RPL_REPORT_DEFAULT: 9425 case RPL_REPORT_ALL: 9426 break; 9427 case RPL_REPORT_WELLKNOWN: 9428 well_known = 1; 9429 num_luns = 0; 9430 break; 9431 default: 9432 ctl_set_invalid_field(ctsio, 9433 /*sks_valid*/ 1, 9434 /*command*/ 1, 9435 /*field*/ 2, 9436 /*bit_valid*/ 0, 9437 /*bit*/ 0); 9438 ctl_done((union ctl_io *)ctsio); 9439 return (retval); 9440 break; /* NOTREACHED */ 9441 } 9442 9443 alloc_len = scsi_4btoul(cdb->length); 9444 /* 9445 * The initiator has to allocate at least 16 bytes for this request, 9446 * so he can at least get the header and the first LUN. Otherwise 9447 * we reject the request (per SPC-3 rev 14, section 6.21). 9448 */ 9449 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9450 sizeof(struct scsi_report_luns_lundata))) { 9451 ctl_set_invalid_field(ctsio, 9452 /*sks_valid*/ 1, 9453 /*command*/ 1, 9454 /*field*/ 6, 9455 /*bit_valid*/ 0, 9456 /*bit*/ 0); 9457 ctl_done((union ctl_io *)ctsio); 9458 return (retval); 9459 } 9460 9461 request_lun = (struct ctl_lun *) 9462 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9463 9464 lun_datalen = sizeof(*lun_data) + 9465 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9466 9467 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9468 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9469 ctsio->kern_sg_entries = 0; 9470 9471 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9472 9473 mtx_lock(&control_softc->ctl_lock); 9474 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9475 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9476 if (lun_id >= CTL_MAX_LUNS) 9477 continue; 9478 lun = control_softc->ctl_luns[lun_id]; 9479 if (lun == NULL) 9480 continue; 9481 9482 if (targ_lun_id <= 0xff) { 9483 /* 9484 * Peripheral addressing method, bus number 0. 9485 */ 9486 lun_data->luns[num_filled].lundata[0] = 9487 RPL_LUNDATA_ATYP_PERIPH; 9488 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9489 num_filled++; 9490 } else if (targ_lun_id <= 0x3fff) { 9491 /* 9492 * Flat addressing method. 9493 */ 9494 lun_data->luns[num_filled].lundata[0] = 9495 RPL_LUNDATA_ATYP_FLAT | 9496 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9497#ifdef OLDCTLHEADERS 9498 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9499 (targ_lun_id & SRLD_BUS_LUN_MASK); 9500#endif 9501 lun_data->luns[num_filled].lundata[1] = 9502#ifdef OLDCTLHEADERS 9503 targ_lun_id >> SRLD_BUS_LUN_BITS; 9504#endif 9505 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9506 num_filled++; 9507 } else { 9508 printf("ctl_report_luns: bogus LUN number %jd, " 9509 "skipping\n", (intmax_t)targ_lun_id); 9510 } 9511 /* 9512 * According to SPC-3, rev 14 section 6.21: 9513 * 9514 * "The execution of a REPORT LUNS command to any valid and 9515 * installed logical unit shall clear the REPORTED LUNS DATA 9516 * HAS CHANGED unit attention condition for all logical 9517 * units of that target with respect to the requesting 9518 * initiator. A valid and installed logical unit is one 9519 * having a PERIPHERAL QUALIFIER of 000b in the standard 9520 * INQUIRY data (see 6.4.2)." 9521 * 9522 * If request_lun is NULL, the LUN this report luns command 9523 * was issued to is either disabled or doesn't exist. In that 9524 * case, we shouldn't clear any pending lun change unit 9525 * attention. 9526 */ 9527 if (request_lun != NULL) { 9528 mtx_lock(&lun->lun_lock); 9529 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9530 mtx_unlock(&lun->lun_lock); 9531 } 9532 } 9533 mtx_unlock(&control_softc->ctl_lock); 9534 9535 /* 9536 * It's quite possible that we've returned fewer LUNs than we allocated 9537 * space for. Trim it. 9538 */ 9539 lun_datalen = sizeof(*lun_data) + 9540 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9541 9542 if (lun_datalen < alloc_len) { 9543 ctsio->residual = alloc_len - lun_datalen; 9544 ctsio->kern_data_len = lun_datalen; 9545 ctsio->kern_total_len = lun_datalen; 9546 } else { 9547 ctsio->residual = 0; 9548 ctsio->kern_data_len = alloc_len; 9549 ctsio->kern_total_len = alloc_len; 9550 } 9551 ctsio->kern_data_resid = 0; 9552 ctsio->kern_rel_offset = 0; 9553 ctsio->kern_sg_entries = 0; 9554 9555 /* 9556 * We set this to the actual data length, regardless of how much 9557 * space we actually have to return results. If the user looks at 9558 * this value, he'll know whether or not he allocated enough space 9559 * and reissue the command if necessary. We don't support well 9560 * known logical units, so if the user asks for that, return none. 9561 */ 9562 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9563 9564 /* 9565 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9566 * this request. 9567 */ 9568 ctsio->scsi_status = SCSI_STATUS_OK; 9569 9570 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9571 ctsio->be_move_done = ctl_config_move_done; 9572 ctl_datamove((union ctl_io *)ctsio); 9573 9574 return (retval); 9575} 9576 9577int 9578ctl_request_sense(struct ctl_scsiio *ctsio) 9579{ 9580 struct scsi_request_sense *cdb; 9581 struct scsi_sense_data *sense_ptr; 9582 struct ctl_lun *lun; 9583 uint32_t initidx; 9584 int have_error; 9585 scsi_sense_data_type sense_format; 9586 9587 cdb = (struct scsi_request_sense *)ctsio->cdb; 9588 9589 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9590 9591 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9592 9593 /* 9594 * Determine which sense format the user wants. 9595 */ 9596 if (cdb->byte2 & SRS_DESC) 9597 sense_format = SSD_TYPE_DESC; 9598 else 9599 sense_format = SSD_TYPE_FIXED; 9600 9601 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9602 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9603 ctsio->kern_sg_entries = 0; 9604 9605 /* 9606 * struct scsi_sense_data, which is currently set to 256 bytes, is 9607 * larger than the largest allowed value for the length field in the 9608 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9609 */ 9610 ctsio->residual = 0; 9611 ctsio->kern_data_len = cdb->length; 9612 ctsio->kern_total_len = cdb->length; 9613 9614 ctsio->kern_data_resid = 0; 9615 ctsio->kern_rel_offset = 0; 9616 ctsio->kern_sg_entries = 0; 9617 9618 /* 9619 * If we don't have a LUN, we don't have any pending sense. 9620 */ 9621 if (lun == NULL) 9622 goto no_sense; 9623 9624 have_error = 0; 9625 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9626 /* 9627 * Check for pending sense, and then for pending unit attentions. 9628 * Pending sense gets returned first, then pending unit attentions. 9629 */ 9630 mtx_lock(&lun->lun_lock); 9631#ifdef CTL_WITH_CA 9632 if (ctl_is_set(lun->have_ca, initidx)) { 9633 scsi_sense_data_type stored_format; 9634 9635 /* 9636 * Check to see which sense format was used for the stored 9637 * sense data. 9638 */ 9639 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9640 9641 /* 9642 * If the user requested a different sense format than the 9643 * one we stored, then we need to convert it to the other 9644 * format. If we're going from descriptor to fixed format 9645 * sense data, we may lose things in translation, depending 9646 * on what options were used. 9647 * 9648 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9649 * for some reason we'll just copy it out as-is. 9650 */ 9651 if ((stored_format == SSD_TYPE_FIXED) 9652 && (sense_format == SSD_TYPE_DESC)) 9653 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9654 &lun->pending_sense[initidx], 9655 (struct scsi_sense_data_desc *)sense_ptr); 9656 else if ((stored_format == SSD_TYPE_DESC) 9657 && (sense_format == SSD_TYPE_FIXED)) 9658 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9659 &lun->pending_sense[initidx], 9660 (struct scsi_sense_data_fixed *)sense_ptr); 9661 else 9662 memcpy(sense_ptr, &lun->pending_sense[initidx], 9663 ctl_min(sizeof(*sense_ptr), 9664 sizeof(lun->pending_sense[initidx]))); 9665 9666 ctl_clear_mask(lun->have_ca, initidx); 9667 have_error = 1; 9668 } else 9669#endif 9670 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9671 ctl_ua_type ua_type; 9672 9673 ua_type = ctl_build_ua(lun->pending_ua[initidx], 9674 sense_ptr, sense_format); 9675 if (ua_type != CTL_UA_NONE) { 9676 have_error = 1; 9677 /* We're reporting this UA, so clear it */ 9678 lun->pending_ua[initidx] &= ~ua_type; 9679 } 9680 } 9681 mtx_unlock(&lun->lun_lock); 9682 9683 /* 9684 * We already have a pending error, return it. 9685 */ 9686 if (have_error != 0) { 9687 /* 9688 * We report the SCSI status as OK, since the status of the 9689 * request sense command itself is OK. 9690 */ 9691 ctsio->scsi_status = SCSI_STATUS_OK; 9692 9693 /* 9694 * We report 0 for the sense length, because we aren't doing 9695 * autosense in this case. We're reporting sense as 9696 * parameter data. 9697 */ 9698 ctsio->sense_len = 0; 9699 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9700 ctsio->be_move_done = ctl_config_move_done; 9701 ctl_datamove((union ctl_io *)ctsio); 9702 9703 return (CTL_RETVAL_COMPLETE); 9704 } 9705 9706no_sense: 9707 9708 /* 9709 * No sense information to report, so we report that everything is 9710 * okay. 9711 */ 9712 ctl_set_sense_data(sense_ptr, 9713 lun, 9714 sense_format, 9715 /*current_error*/ 1, 9716 /*sense_key*/ SSD_KEY_NO_SENSE, 9717 /*asc*/ 0x00, 9718 /*ascq*/ 0x00, 9719 SSD_ELEM_NONE); 9720 9721 ctsio->scsi_status = SCSI_STATUS_OK; 9722 9723 /* 9724 * We report 0 for the sense length, because we aren't doing 9725 * autosense in this case. We're reporting sense as parameter data. 9726 */ 9727 ctsio->sense_len = 0; 9728 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9729 ctsio->be_move_done = ctl_config_move_done; 9730 ctl_datamove((union ctl_io *)ctsio); 9731 9732 return (CTL_RETVAL_COMPLETE); 9733} 9734 9735int 9736ctl_tur(struct ctl_scsiio *ctsio) 9737{ 9738 struct ctl_lun *lun; 9739 9740 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9741 9742 CTL_DEBUG_PRINT(("ctl_tur\n")); 9743 9744 if (lun == NULL) 9745 return (EINVAL); 9746 9747 ctsio->scsi_status = SCSI_STATUS_OK; 9748 ctsio->io_hdr.status = CTL_SUCCESS; 9749 9750 ctl_done((union ctl_io *)ctsio); 9751 9752 return (CTL_RETVAL_COMPLETE); 9753} 9754 9755#ifdef notyet 9756static int 9757ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9758{ 9759 9760} 9761#endif 9762 9763static int 9764ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9765{ 9766 struct scsi_vpd_supported_pages *pages; 9767 int sup_page_size; 9768 struct ctl_lun *lun; 9769 9770 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9771 9772 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9773 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9774 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9775 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9776 ctsio->kern_sg_entries = 0; 9777 9778 if (sup_page_size < alloc_len) { 9779 ctsio->residual = alloc_len - sup_page_size; 9780 ctsio->kern_data_len = sup_page_size; 9781 ctsio->kern_total_len = sup_page_size; 9782 } else { 9783 ctsio->residual = 0; 9784 ctsio->kern_data_len = alloc_len; 9785 ctsio->kern_total_len = alloc_len; 9786 } 9787 ctsio->kern_data_resid = 0; 9788 ctsio->kern_rel_offset = 0; 9789 ctsio->kern_sg_entries = 0; 9790 9791 /* 9792 * The control device is always connected. The disk device, on the 9793 * other hand, may not be online all the time. Need to change this 9794 * to figure out whether the disk device is actually online or not. 9795 */ 9796 if (lun != NULL) 9797 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9798 lun->be_lun->lun_type; 9799 else 9800 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9801 9802 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9803 /* Supported VPD pages */ 9804 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9805 /* Serial Number */ 9806 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9807 /* Device Identification */ 9808 pages->page_list[2] = SVPD_DEVICE_ID; 9809 /* SCSI Ports */ 9810 pages->page_list[3] = SVPD_SCSI_PORTS; 9811 /* Third-party Copy */ 9812 pages->page_list[4] = SVPD_SCSI_TPC; 9813 /* Block limits */ 9814 pages->page_list[5] = SVPD_BLOCK_LIMITS; 9815 /* Block Device Characteristics */ 9816 pages->page_list[6] = SVPD_BDC; 9817 /* Logical Block Provisioning */ 9818 pages->page_list[7] = SVPD_LBP; 9819 9820 ctsio->scsi_status = SCSI_STATUS_OK; 9821 9822 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9823 ctsio->be_move_done = ctl_config_move_done; 9824 ctl_datamove((union ctl_io *)ctsio); 9825 9826 return (CTL_RETVAL_COMPLETE); 9827} 9828 9829static int 9830ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9831{ 9832 struct scsi_vpd_unit_serial_number *sn_ptr; 9833 struct ctl_lun *lun; 9834 9835 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9836 9837 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9838 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9839 ctsio->kern_sg_entries = 0; 9840 9841 if (sizeof(*sn_ptr) < alloc_len) { 9842 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9843 ctsio->kern_data_len = sizeof(*sn_ptr); 9844 ctsio->kern_total_len = sizeof(*sn_ptr); 9845 } else { 9846 ctsio->residual = 0; 9847 ctsio->kern_data_len = alloc_len; 9848 ctsio->kern_total_len = alloc_len; 9849 } 9850 ctsio->kern_data_resid = 0; 9851 ctsio->kern_rel_offset = 0; 9852 ctsio->kern_sg_entries = 0; 9853 9854 /* 9855 * The control device is always connected. The disk device, on the 9856 * other hand, may not be online all the time. Need to change this 9857 * to figure out whether the disk device is actually online or not. 9858 */ 9859 if (lun != NULL) 9860 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9861 lun->be_lun->lun_type; 9862 else 9863 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9864 9865 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9866 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9867 /* 9868 * If we don't have a LUN, we just leave the serial number as 9869 * all spaces. 9870 */ 9871 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9872 if (lun != NULL) { 9873 strncpy((char *)sn_ptr->serial_num, 9874 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9875 } 9876 ctsio->scsi_status = SCSI_STATUS_OK; 9877 9878 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9879 ctsio->be_move_done = ctl_config_move_done; 9880 ctl_datamove((union ctl_io *)ctsio); 9881 9882 return (CTL_RETVAL_COMPLETE); 9883} 9884 9885 9886static int 9887ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9888{ 9889 struct scsi_vpd_device_id *devid_ptr; 9890 struct scsi_vpd_id_descriptor *desc; 9891 struct ctl_softc *ctl_softc; 9892 struct ctl_lun *lun; 9893 struct ctl_port *port; 9894 int data_len; 9895 uint8_t proto; 9896 9897 ctl_softc = control_softc; 9898 9899 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9900 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9901 9902 data_len = sizeof(struct scsi_vpd_device_id) + 9903 sizeof(struct scsi_vpd_id_descriptor) + 9904 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9905 sizeof(struct scsi_vpd_id_descriptor) + 9906 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9907 if (lun && lun->lun_devid) 9908 data_len += lun->lun_devid->len; 9909 if (port->port_devid) 9910 data_len += port->port_devid->len; 9911 if (port->target_devid) 9912 data_len += port->target_devid->len; 9913 9914 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9915 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9916 ctsio->kern_sg_entries = 0; 9917 9918 if (data_len < alloc_len) { 9919 ctsio->residual = alloc_len - data_len; 9920 ctsio->kern_data_len = data_len; 9921 ctsio->kern_total_len = data_len; 9922 } else { 9923 ctsio->residual = 0; 9924 ctsio->kern_data_len = alloc_len; 9925 ctsio->kern_total_len = alloc_len; 9926 } 9927 ctsio->kern_data_resid = 0; 9928 ctsio->kern_rel_offset = 0; 9929 ctsio->kern_sg_entries = 0; 9930 9931 /* 9932 * The control device is always connected. The disk device, on the 9933 * other hand, may not be online all the time. 9934 */ 9935 if (lun != NULL) 9936 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9937 lun->be_lun->lun_type; 9938 else 9939 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9940 devid_ptr->page_code = SVPD_DEVICE_ID; 9941 scsi_ulto2b(data_len - 4, devid_ptr->length); 9942 9943 if (port->port_type == CTL_PORT_FC) 9944 proto = SCSI_PROTO_FC << 4; 9945 else if (port->port_type == CTL_PORT_ISCSI) 9946 proto = SCSI_PROTO_ISCSI << 4; 9947 else 9948 proto = SCSI_PROTO_SPI << 4; 9949 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9950 9951 /* 9952 * We're using a LUN association here. i.e., this device ID is a 9953 * per-LUN identifier. 9954 */ 9955 if (lun && lun->lun_devid) { 9956 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9957 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9958 lun->lun_devid->len); 9959 } 9960 9961 /* 9962 * This is for the WWPN which is a port association. 9963 */ 9964 if (port->port_devid) { 9965 memcpy(desc, port->port_devid->data, port->port_devid->len); 9966 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9967 port->port_devid->len); 9968 } 9969 9970 /* 9971 * This is for the Relative Target Port(type 4h) identifier 9972 */ 9973 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9974 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9975 SVPD_ID_TYPE_RELTARG; 9976 desc->length = 4; 9977 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9978 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9979 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9980 9981 /* 9982 * This is for the Target Port Group(type 5h) identifier 9983 */ 9984 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9985 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9986 SVPD_ID_TYPE_TPORTGRP; 9987 desc->length = 4; 9988 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9989 &desc->identifier[2]); 9990 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9991 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9992 9993 /* 9994 * This is for the Target identifier 9995 */ 9996 if (port->target_devid) { 9997 memcpy(desc, port->target_devid->data, port->target_devid->len); 9998 } 9999 10000 ctsio->scsi_status = SCSI_STATUS_OK; 10001 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10002 ctsio->be_move_done = ctl_config_move_done; 10003 ctl_datamove((union ctl_io *)ctsio); 10004 10005 return (CTL_RETVAL_COMPLETE); 10006} 10007 10008static int 10009ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10010{ 10011 struct ctl_softc *softc = control_softc; 10012 struct scsi_vpd_scsi_ports *sp; 10013 struct scsi_vpd_port_designation *pd; 10014 struct scsi_vpd_port_designation_cont *pdc; 10015 struct ctl_lun *lun; 10016 struct ctl_port *port; 10017 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10018 int num_target_port_groups, single; 10019 10020 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10021 10022 single = ctl_is_single; 10023 if (single) 10024 num_target_port_groups = 1; 10025 else 10026 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10027 num_target_ports = 0; 10028 iid_len = 0; 10029 id_len = 0; 10030 mtx_lock(&softc->ctl_lock); 10031 STAILQ_FOREACH(port, &softc->port_list, links) { 10032 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10033 continue; 10034 if (lun != NULL && 10035 ctl_map_lun_back(port->targ_port, lun->lun) >= 10036 CTL_MAX_LUNS) 10037 continue; 10038 num_target_ports++; 10039 if (port->init_devid) 10040 iid_len += port->init_devid->len; 10041 if (port->port_devid) 10042 id_len += port->port_devid->len; 10043 } 10044 mtx_unlock(&softc->ctl_lock); 10045 10046 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10047 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10048 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10049 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10050 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10051 ctsio->kern_sg_entries = 0; 10052 10053 if (data_len < alloc_len) { 10054 ctsio->residual = alloc_len - data_len; 10055 ctsio->kern_data_len = data_len; 10056 ctsio->kern_total_len = data_len; 10057 } else { 10058 ctsio->residual = 0; 10059 ctsio->kern_data_len = alloc_len; 10060 ctsio->kern_total_len = alloc_len; 10061 } 10062 ctsio->kern_data_resid = 0; 10063 ctsio->kern_rel_offset = 0; 10064 ctsio->kern_sg_entries = 0; 10065 10066 /* 10067 * The control device is always connected. The disk device, on the 10068 * other hand, may not be online all the time. Need to change this 10069 * to figure out whether the disk device is actually online or not. 10070 */ 10071 if (lun != NULL) 10072 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10073 lun->be_lun->lun_type; 10074 else 10075 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10076 10077 sp->page_code = SVPD_SCSI_PORTS; 10078 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10079 sp->page_length); 10080 pd = &sp->design[0]; 10081 10082 mtx_lock(&softc->ctl_lock); 10083 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10084 pg = 0; 10085 else 10086 pg = 1; 10087 for (g = 0; g < num_target_port_groups; g++) { 10088 STAILQ_FOREACH(port, &softc->port_list, links) { 10089 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10090 continue; 10091 if (lun != NULL && 10092 ctl_map_lun_back(port->targ_port, lun->lun) >= 10093 CTL_MAX_LUNS) 10094 continue; 10095 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10096 scsi_ulto2b(p, pd->relative_port_id); 10097 if (port->init_devid && g == pg) { 10098 iid_len = port->init_devid->len; 10099 memcpy(pd->initiator_transportid, 10100 port->init_devid->data, port->init_devid->len); 10101 } else 10102 iid_len = 0; 10103 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10104 pdc = (struct scsi_vpd_port_designation_cont *) 10105 (&pd->initiator_transportid[iid_len]); 10106 if (port->port_devid && g == pg) { 10107 id_len = port->port_devid->len; 10108 memcpy(pdc->target_port_descriptors, 10109 port->port_devid->data, port->port_devid->len); 10110 } else 10111 id_len = 0; 10112 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10113 pd = (struct scsi_vpd_port_designation *) 10114 ((uint8_t *)pdc->target_port_descriptors + id_len); 10115 } 10116 } 10117 mtx_unlock(&softc->ctl_lock); 10118 10119 ctsio->scsi_status = SCSI_STATUS_OK; 10120 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10121 ctsio->be_move_done = ctl_config_move_done; 10122 ctl_datamove((union ctl_io *)ctsio); 10123 10124 return (CTL_RETVAL_COMPLETE); 10125} 10126 10127static int 10128ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10129{ 10130 struct scsi_vpd_block_limits *bl_ptr; 10131 struct ctl_lun *lun; 10132 int bs; 10133 10134 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10135 10136 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10137 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10138 ctsio->kern_sg_entries = 0; 10139 10140 if (sizeof(*bl_ptr) < alloc_len) { 10141 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10142 ctsio->kern_data_len = sizeof(*bl_ptr); 10143 ctsio->kern_total_len = sizeof(*bl_ptr); 10144 } else { 10145 ctsio->residual = 0; 10146 ctsio->kern_data_len = alloc_len; 10147 ctsio->kern_total_len = alloc_len; 10148 } 10149 ctsio->kern_data_resid = 0; 10150 ctsio->kern_rel_offset = 0; 10151 ctsio->kern_sg_entries = 0; 10152 10153 /* 10154 * The control device is always connected. The disk device, on the 10155 * other hand, may not be online all the time. Need to change this 10156 * to figure out whether the disk device is actually online or not. 10157 */ 10158 if (lun != NULL) 10159 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10160 lun->be_lun->lun_type; 10161 else 10162 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10163 10164 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10165 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10166 bl_ptr->max_cmp_write_len = 0xff; 10167 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10168 if (lun != NULL) { 10169 bs = lun->be_lun->blocksize; 10170 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10171 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10172 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10173 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10174 if (lun->be_lun->pblockexp != 0) { 10175 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10176 bl_ptr->opt_unmap_grain); 10177 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10178 bl_ptr->unmap_grain_align); 10179 } 10180 } 10181 } 10182 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10183 10184 ctsio->scsi_status = SCSI_STATUS_OK; 10185 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10186 ctsio->be_move_done = ctl_config_move_done; 10187 ctl_datamove((union ctl_io *)ctsio); 10188 10189 return (CTL_RETVAL_COMPLETE); 10190} 10191 10192static int 10193ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10194{ 10195 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10196 struct ctl_lun *lun; 10197 10198 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10199 10200 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10201 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10202 ctsio->kern_sg_entries = 0; 10203 10204 if (sizeof(*bdc_ptr) < alloc_len) { 10205 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10206 ctsio->kern_data_len = sizeof(*bdc_ptr); 10207 ctsio->kern_total_len = sizeof(*bdc_ptr); 10208 } else { 10209 ctsio->residual = 0; 10210 ctsio->kern_data_len = alloc_len; 10211 ctsio->kern_total_len = alloc_len; 10212 } 10213 ctsio->kern_data_resid = 0; 10214 ctsio->kern_rel_offset = 0; 10215 ctsio->kern_sg_entries = 0; 10216 10217 /* 10218 * The control device is always connected. The disk device, on the 10219 * other hand, may not be online all the time. Need to change this 10220 * to figure out whether the disk device is actually online or not. 10221 */ 10222 if (lun != NULL) 10223 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10224 lun->be_lun->lun_type; 10225 else 10226 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10227 bdc_ptr->page_code = SVPD_BDC; 10228 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10229 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10230 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10231 10232 ctsio->scsi_status = SCSI_STATUS_OK; 10233 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10234 ctsio->be_move_done = ctl_config_move_done; 10235 ctl_datamove((union ctl_io *)ctsio); 10236 10237 return (CTL_RETVAL_COMPLETE); 10238} 10239 10240static int 10241ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10242{ 10243 struct scsi_vpd_logical_block_prov *lbp_ptr; 10244 struct ctl_lun *lun; 10245 10246 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10247 10248 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10249 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10250 ctsio->kern_sg_entries = 0; 10251 10252 if (sizeof(*lbp_ptr) < alloc_len) { 10253 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10254 ctsio->kern_data_len = sizeof(*lbp_ptr); 10255 ctsio->kern_total_len = sizeof(*lbp_ptr); 10256 } else { 10257 ctsio->residual = 0; 10258 ctsio->kern_data_len = alloc_len; 10259 ctsio->kern_total_len = alloc_len; 10260 } 10261 ctsio->kern_data_resid = 0; 10262 ctsio->kern_rel_offset = 0; 10263 ctsio->kern_sg_entries = 0; 10264 10265 /* 10266 * The control device is always connected. The disk device, on the 10267 * other hand, may not be online all the time. Need to change this 10268 * to figure out whether the disk device is actually online or not. 10269 */ 10270 if (lun != NULL) 10271 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10272 lun->be_lun->lun_type; 10273 else 10274 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10275 10276 lbp_ptr->page_code = SVPD_LBP; 10277 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10278 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10279 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10280 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10281 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10282 } 10283 10284 ctsio->scsi_status = SCSI_STATUS_OK; 10285 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10286 ctsio->be_move_done = ctl_config_move_done; 10287 ctl_datamove((union ctl_io *)ctsio); 10288 10289 return (CTL_RETVAL_COMPLETE); 10290} 10291 10292static int 10293ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10294{ 10295 struct scsi_inquiry *cdb; 10296 struct ctl_lun *lun; 10297 int alloc_len, retval; 10298 10299 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10300 cdb = (struct scsi_inquiry *)ctsio->cdb; 10301 10302 retval = CTL_RETVAL_COMPLETE; 10303 10304 alloc_len = scsi_2btoul(cdb->length); 10305 10306 switch (cdb->page_code) { 10307 case SVPD_SUPPORTED_PAGES: 10308 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10309 break; 10310 case SVPD_UNIT_SERIAL_NUMBER: 10311 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10312 break; 10313 case SVPD_DEVICE_ID: 10314 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10315 break; 10316 case SVPD_SCSI_PORTS: 10317 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10318 break; 10319 case SVPD_SCSI_TPC: 10320 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10321 break; 10322 case SVPD_BLOCK_LIMITS: 10323 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10324 break; 10325 case SVPD_BDC: 10326 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10327 break; 10328 case SVPD_LBP: 10329 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10330 break; 10331 default: 10332 ctl_set_invalid_field(ctsio, 10333 /*sks_valid*/ 1, 10334 /*command*/ 1, 10335 /*field*/ 2, 10336 /*bit_valid*/ 0, 10337 /*bit*/ 0); 10338 ctl_done((union ctl_io *)ctsio); 10339 retval = CTL_RETVAL_COMPLETE; 10340 break; 10341 } 10342 10343 return (retval); 10344} 10345 10346static int 10347ctl_inquiry_std(struct ctl_scsiio *ctsio) 10348{ 10349 struct scsi_inquiry_data *inq_ptr; 10350 struct scsi_inquiry *cdb; 10351 struct ctl_softc *ctl_softc; 10352 struct ctl_lun *lun; 10353 char *val; 10354 uint32_t alloc_len; 10355 ctl_port_type port_type; 10356 10357 ctl_softc = control_softc; 10358 10359 /* 10360 * Figure out whether we're talking to a Fibre Channel port or not. 10361 * We treat the ioctl front end, and any SCSI adapters, as packetized 10362 * SCSI front ends. 10363 */ 10364 port_type = ctl_softc->ctl_ports[ 10365 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10366 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10367 port_type = CTL_PORT_SCSI; 10368 10369 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10370 cdb = (struct scsi_inquiry *)ctsio->cdb; 10371 alloc_len = scsi_2btoul(cdb->length); 10372 10373 /* 10374 * We malloc the full inquiry data size here and fill it 10375 * in. If the user only asks for less, we'll give him 10376 * that much. 10377 */ 10378 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10379 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10380 ctsio->kern_sg_entries = 0; 10381 ctsio->kern_data_resid = 0; 10382 ctsio->kern_rel_offset = 0; 10383 10384 if (sizeof(*inq_ptr) < alloc_len) { 10385 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10386 ctsio->kern_data_len = sizeof(*inq_ptr); 10387 ctsio->kern_total_len = sizeof(*inq_ptr); 10388 } else { 10389 ctsio->residual = 0; 10390 ctsio->kern_data_len = alloc_len; 10391 ctsio->kern_total_len = alloc_len; 10392 } 10393 10394 /* 10395 * If we have a LUN configured, report it as connected. Otherwise, 10396 * report that it is offline or no device is supported, depending 10397 * on the value of inquiry_pq_no_lun. 10398 * 10399 * According to the spec (SPC-4 r34), the peripheral qualifier 10400 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10401 * 10402 * "A peripheral device having the specified peripheral device type 10403 * is not connected to this logical unit. However, the device 10404 * server is capable of supporting the specified peripheral device 10405 * type on this logical unit." 10406 * 10407 * According to the same spec, the peripheral qualifier 10408 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10409 * 10410 * "The device server is not capable of supporting a peripheral 10411 * device on this logical unit. For this peripheral qualifier the 10412 * peripheral device type shall be set to 1Fh. All other peripheral 10413 * device type values are reserved for this peripheral qualifier." 10414 * 10415 * Given the text, it would seem that we probably want to report that 10416 * the LUN is offline here. There is no LUN connected, but we can 10417 * support a LUN at the given LUN number. 10418 * 10419 * In the real world, though, it sounds like things are a little 10420 * different: 10421 * 10422 * - Linux, when presented with a LUN with the offline peripheral 10423 * qualifier, will create an sg driver instance for it. So when 10424 * you attach it to CTL, you wind up with a ton of sg driver 10425 * instances. (One for every LUN that Linux bothered to probe.) 10426 * Linux does this despite the fact that it issues a REPORT LUNs 10427 * to LUN 0 to get the inventory of supported LUNs. 10428 * 10429 * - There is other anecdotal evidence (from Emulex folks) about 10430 * arrays that use the offline peripheral qualifier for LUNs that 10431 * are on the "passive" path in an active/passive array. 10432 * 10433 * So the solution is provide a hopefully reasonable default 10434 * (return bad/no LUN) and allow the user to change the behavior 10435 * with a tunable/sysctl variable. 10436 */ 10437 if (lun != NULL) 10438 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10439 lun->be_lun->lun_type; 10440 else if (ctl_softc->inquiry_pq_no_lun == 0) 10441 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10442 else 10443 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10444 10445 /* RMB in byte 2 is 0 */ 10446 inq_ptr->version = SCSI_REV_SPC4; 10447 10448 /* 10449 * According to SAM-3, even if a device only supports a single 10450 * level of LUN addressing, it should still set the HISUP bit: 10451 * 10452 * 4.9.1 Logical unit numbers overview 10453 * 10454 * All logical unit number formats described in this standard are 10455 * hierarchical in structure even when only a single level in that 10456 * hierarchy is used. The HISUP bit shall be set to one in the 10457 * standard INQUIRY data (see SPC-2) when any logical unit number 10458 * format described in this standard is used. Non-hierarchical 10459 * formats are outside the scope of this standard. 10460 * 10461 * Therefore we set the HiSup bit here. 10462 * 10463 * The reponse format is 2, per SPC-3. 10464 */ 10465 inq_ptr->response_format = SID_HiSup | 2; 10466 10467 inq_ptr->additional_length = sizeof(*inq_ptr) - 4; 10468 CTL_DEBUG_PRINT(("additional_length = %d\n", 10469 inq_ptr->additional_length)); 10470 10471 inq_ptr->spc3_flags = SPC3_SID_3PC; 10472 if (!ctl_is_single) 10473 inq_ptr->spc3_flags |= SPC3_SID_TPGS_IMPLICIT; 10474 /* 16 bit addressing */ 10475 if (port_type == CTL_PORT_SCSI) 10476 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10477 /* XXX set the SID_MultiP bit here if we're actually going to 10478 respond on multiple ports */ 10479 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10480 10481 /* 16 bit data bus, synchronous transfers */ 10482 if (port_type == CTL_PORT_SCSI) 10483 inq_ptr->flags = SID_WBus16 | SID_Sync; 10484 /* 10485 * XXX KDM do we want to support tagged queueing on the control 10486 * device at all? 10487 */ 10488 if ((lun == NULL) 10489 || (lun->be_lun->lun_type != T_PROCESSOR)) 10490 inq_ptr->flags |= SID_CmdQue; 10491 /* 10492 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10493 * We have 8 bytes for the vendor name, and 16 bytes for the device 10494 * name and 4 bytes for the revision. 10495 */ 10496 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10497 "vendor")) == NULL) { 10498 strcpy(inq_ptr->vendor, CTL_VENDOR); 10499 } else { 10500 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10501 strncpy(inq_ptr->vendor, val, 10502 min(sizeof(inq_ptr->vendor), strlen(val))); 10503 } 10504 if (lun == NULL) { 10505 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10506 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10507 switch (lun->be_lun->lun_type) { 10508 case T_DIRECT: 10509 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10510 break; 10511 case T_PROCESSOR: 10512 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10513 break; 10514 default: 10515 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10516 break; 10517 } 10518 } else { 10519 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10520 strncpy(inq_ptr->product, val, 10521 min(sizeof(inq_ptr->product), strlen(val))); 10522 } 10523 10524 /* 10525 * XXX make this a macro somewhere so it automatically gets 10526 * incremented when we make changes. 10527 */ 10528 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10529 "revision")) == NULL) { 10530 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10531 } else { 10532 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10533 strncpy(inq_ptr->revision, val, 10534 min(sizeof(inq_ptr->revision), strlen(val))); 10535 } 10536 10537 /* 10538 * For parallel SCSI, we support double transition and single 10539 * transition clocking. We also support QAS (Quick Arbitration 10540 * and Selection) and Information Unit transfers on both the 10541 * control and array devices. 10542 */ 10543 if (port_type == CTL_PORT_SCSI) 10544 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10545 SID_SPI_IUS; 10546 10547 /* SAM-5 (no version claimed) */ 10548 scsi_ulto2b(0x00A0, inq_ptr->version1); 10549 /* SPC-4 (no version claimed) */ 10550 scsi_ulto2b(0x0460, inq_ptr->version2); 10551 if (port_type == CTL_PORT_FC) { 10552 /* FCP-2 ANSI INCITS.350:2003 */ 10553 scsi_ulto2b(0x0917, inq_ptr->version3); 10554 } else if (port_type == CTL_PORT_SCSI) { 10555 /* SPI-4 ANSI INCITS.362:200x */ 10556 scsi_ulto2b(0x0B56, inq_ptr->version3); 10557 } else if (port_type == CTL_PORT_ISCSI) { 10558 /* iSCSI (no version claimed) */ 10559 scsi_ulto2b(0x0960, inq_ptr->version3); 10560 } else if (port_type == CTL_PORT_SAS) { 10561 /* SAS (no version claimed) */ 10562 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10563 } 10564 10565 if (lun == NULL) { 10566 /* SBC-3 (no version claimed) */ 10567 scsi_ulto2b(0x04C0, inq_ptr->version4); 10568 } else { 10569 switch (lun->be_lun->lun_type) { 10570 case T_DIRECT: 10571 /* SBC-3 (no version claimed) */ 10572 scsi_ulto2b(0x04C0, inq_ptr->version4); 10573 break; 10574 case T_PROCESSOR: 10575 default: 10576 break; 10577 } 10578 } 10579 10580 ctsio->scsi_status = SCSI_STATUS_OK; 10581 if (ctsio->kern_data_len > 0) { 10582 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10583 ctsio->be_move_done = ctl_config_move_done; 10584 ctl_datamove((union ctl_io *)ctsio); 10585 } else { 10586 ctsio->io_hdr.status = CTL_SUCCESS; 10587 ctl_done((union ctl_io *)ctsio); 10588 } 10589 10590 return (CTL_RETVAL_COMPLETE); 10591} 10592 10593int 10594ctl_inquiry(struct ctl_scsiio *ctsio) 10595{ 10596 struct scsi_inquiry *cdb; 10597 int retval; 10598 10599 cdb = (struct scsi_inquiry *)ctsio->cdb; 10600 10601 retval = 0; 10602 10603 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10604 10605 /* 10606 * Right now, we don't support the CmdDt inquiry information. 10607 * This would be nice to support in the future. When we do 10608 * support it, we should change this test so that it checks to make 10609 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10610 */ 10611#ifdef notyet 10612 if (((cdb->byte2 & SI_EVPD) 10613 && (cdb->byte2 & SI_CMDDT))) 10614#endif 10615 if (cdb->byte2 & SI_CMDDT) { 10616 /* 10617 * Point to the SI_CMDDT bit. We might change this 10618 * when we support SI_CMDDT, but since both bits would be 10619 * "wrong", this should probably just stay as-is then. 10620 */ 10621 ctl_set_invalid_field(ctsio, 10622 /*sks_valid*/ 1, 10623 /*command*/ 1, 10624 /*field*/ 1, 10625 /*bit_valid*/ 1, 10626 /*bit*/ 1); 10627 ctl_done((union ctl_io *)ctsio); 10628 return (CTL_RETVAL_COMPLETE); 10629 } 10630 if (cdb->byte2 & SI_EVPD) 10631 retval = ctl_inquiry_evpd(ctsio); 10632#ifdef notyet 10633 else if (cdb->byte2 & SI_CMDDT) 10634 retval = ctl_inquiry_cmddt(ctsio); 10635#endif 10636 else 10637 retval = ctl_inquiry_std(ctsio); 10638 10639 return (retval); 10640} 10641 10642/* 10643 * For known CDB types, parse the LBA and length. 10644 */ 10645static int 10646ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10647{ 10648 if (io->io_hdr.io_type != CTL_IO_SCSI) 10649 return (1); 10650 10651 switch (io->scsiio.cdb[0]) { 10652 case COMPARE_AND_WRITE: { 10653 struct scsi_compare_and_write *cdb; 10654 10655 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10656 10657 *lba = scsi_8btou64(cdb->addr); 10658 *len = cdb->length; 10659 break; 10660 } 10661 case READ_6: 10662 case WRITE_6: { 10663 struct scsi_rw_6 *cdb; 10664 10665 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10666 10667 *lba = scsi_3btoul(cdb->addr); 10668 /* only 5 bits are valid in the most significant address byte */ 10669 *lba &= 0x1fffff; 10670 *len = cdb->length; 10671 break; 10672 } 10673 case READ_10: 10674 case WRITE_10: { 10675 struct scsi_rw_10 *cdb; 10676 10677 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10678 10679 *lba = scsi_4btoul(cdb->addr); 10680 *len = scsi_2btoul(cdb->length); 10681 break; 10682 } 10683 case WRITE_VERIFY_10: { 10684 struct scsi_write_verify_10 *cdb; 10685 10686 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10687 10688 *lba = scsi_4btoul(cdb->addr); 10689 *len = scsi_2btoul(cdb->length); 10690 break; 10691 } 10692 case READ_12: 10693 case WRITE_12: { 10694 struct scsi_rw_12 *cdb; 10695 10696 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10697 10698 *lba = scsi_4btoul(cdb->addr); 10699 *len = scsi_4btoul(cdb->length); 10700 break; 10701 } 10702 case WRITE_VERIFY_12: { 10703 struct scsi_write_verify_12 *cdb; 10704 10705 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10706 10707 *lba = scsi_4btoul(cdb->addr); 10708 *len = scsi_4btoul(cdb->length); 10709 break; 10710 } 10711 case READ_16: 10712 case WRITE_16: { 10713 struct scsi_rw_16 *cdb; 10714 10715 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10716 10717 *lba = scsi_8btou64(cdb->addr); 10718 *len = scsi_4btoul(cdb->length); 10719 break; 10720 } 10721 case WRITE_VERIFY_16: { 10722 struct scsi_write_verify_16 *cdb; 10723 10724 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10725 10726 10727 *lba = scsi_8btou64(cdb->addr); 10728 *len = scsi_4btoul(cdb->length); 10729 break; 10730 } 10731 case WRITE_SAME_10: { 10732 struct scsi_write_same_10 *cdb; 10733 10734 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10735 10736 *lba = scsi_4btoul(cdb->addr); 10737 *len = scsi_2btoul(cdb->length); 10738 break; 10739 } 10740 case WRITE_SAME_16: { 10741 struct scsi_write_same_16 *cdb; 10742 10743 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10744 10745 *lba = scsi_8btou64(cdb->addr); 10746 *len = scsi_4btoul(cdb->length); 10747 break; 10748 } 10749 case VERIFY_10: { 10750 struct scsi_verify_10 *cdb; 10751 10752 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10753 10754 *lba = scsi_4btoul(cdb->addr); 10755 *len = scsi_2btoul(cdb->length); 10756 break; 10757 } 10758 case VERIFY_12: { 10759 struct scsi_verify_12 *cdb; 10760 10761 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10762 10763 *lba = scsi_4btoul(cdb->addr); 10764 *len = scsi_4btoul(cdb->length); 10765 break; 10766 } 10767 case VERIFY_16: { 10768 struct scsi_verify_16 *cdb; 10769 10770 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10771 10772 *lba = scsi_8btou64(cdb->addr); 10773 *len = scsi_4btoul(cdb->length); 10774 break; 10775 } 10776 default: 10777 return (1); 10778 break; /* NOTREACHED */ 10779 } 10780 10781 return (0); 10782} 10783 10784static ctl_action 10785ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10786{ 10787 uint64_t endlba1, endlba2; 10788 10789 endlba1 = lba1 + len1 - 1; 10790 endlba2 = lba2 + len2 - 1; 10791 10792 if ((endlba1 < lba2) 10793 || (endlba2 < lba1)) 10794 return (CTL_ACTION_PASS); 10795 else 10796 return (CTL_ACTION_BLOCK); 10797} 10798 10799static ctl_action 10800ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10801{ 10802 uint64_t lba1, lba2; 10803 uint32_t len1, len2; 10804 int retval; 10805 10806 retval = ctl_get_lba_len(io1, &lba1, &len1); 10807 if (retval != 0) 10808 return (CTL_ACTION_ERROR); 10809 10810 retval = ctl_get_lba_len(io2, &lba2, &len2); 10811 if (retval != 0) 10812 return (CTL_ACTION_ERROR); 10813 10814 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10815} 10816 10817static ctl_action 10818ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10819{ 10820 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10821 ctl_serialize_action *serialize_row; 10822 10823 /* 10824 * The initiator attempted multiple untagged commands at the same 10825 * time. Can't do that. 10826 */ 10827 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10828 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10829 && ((pending_io->io_hdr.nexus.targ_port == 10830 ooa_io->io_hdr.nexus.targ_port) 10831 && (pending_io->io_hdr.nexus.initid.id == 10832 ooa_io->io_hdr.nexus.initid.id)) 10833 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10834 return (CTL_ACTION_OVERLAP); 10835 10836 /* 10837 * The initiator attempted to send multiple tagged commands with 10838 * the same ID. (It's fine if different initiators have the same 10839 * tag ID.) 10840 * 10841 * Even if all of those conditions are true, we don't kill the I/O 10842 * if the command ahead of us has been aborted. We won't end up 10843 * sending it to the FETD, and it's perfectly legal to resend a 10844 * command with the same tag number as long as the previous 10845 * instance of this tag number has been aborted somehow. 10846 */ 10847 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10848 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10849 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10850 && ((pending_io->io_hdr.nexus.targ_port == 10851 ooa_io->io_hdr.nexus.targ_port) 10852 && (pending_io->io_hdr.nexus.initid.id == 10853 ooa_io->io_hdr.nexus.initid.id)) 10854 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10855 return (CTL_ACTION_OVERLAP_TAG); 10856 10857 /* 10858 * If we get a head of queue tag, SAM-3 says that we should 10859 * immediately execute it. 10860 * 10861 * What happens if this command would normally block for some other 10862 * reason? e.g. a request sense with a head of queue tag 10863 * immediately after a write. Normally that would block, but this 10864 * will result in its getting executed immediately... 10865 * 10866 * We currently return "pass" instead of "skip", so we'll end up 10867 * going through the rest of the queue to check for overlapped tags. 10868 * 10869 * XXX KDM check for other types of blockage first?? 10870 */ 10871 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10872 return (CTL_ACTION_PASS); 10873 10874 /* 10875 * Ordered tags have to block until all items ahead of them 10876 * have completed. If we get called with an ordered tag, we always 10877 * block, if something else is ahead of us in the queue. 10878 */ 10879 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10880 return (CTL_ACTION_BLOCK); 10881 10882 /* 10883 * Simple tags get blocked until all head of queue and ordered tags 10884 * ahead of them have completed. I'm lumping untagged commands in 10885 * with simple tags here. XXX KDM is that the right thing to do? 10886 */ 10887 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10888 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10889 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10890 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10891 return (CTL_ACTION_BLOCK); 10892 10893 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10894 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10895 10896 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10897 10898 switch (serialize_row[pending_entry->seridx]) { 10899 case CTL_SER_BLOCK: 10900 return (CTL_ACTION_BLOCK); 10901 break; /* NOTREACHED */ 10902 case CTL_SER_EXTENT: 10903 return (ctl_extent_check(pending_io, ooa_io)); 10904 break; /* NOTREACHED */ 10905 case CTL_SER_PASS: 10906 return (CTL_ACTION_PASS); 10907 break; /* NOTREACHED */ 10908 case CTL_SER_SKIP: 10909 return (CTL_ACTION_SKIP); 10910 break; 10911 default: 10912 panic("invalid serialization value %d", 10913 serialize_row[pending_entry->seridx]); 10914 break; /* NOTREACHED */ 10915 } 10916 10917 return (CTL_ACTION_ERROR); 10918} 10919 10920/* 10921 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10922 * Assumptions: 10923 * - pending_io is generally either incoming, or on the blocked queue 10924 * - starting I/O is the I/O we want to start the check with. 10925 */ 10926static ctl_action 10927ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10928 union ctl_io *starting_io) 10929{ 10930 union ctl_io *ooa_io; 10931 ctl_action action; 10932 10933 mtx_assert(&lun->lun_lock, MA_OWNED); 10934 10935 /* 10936 * Run back along the OOA queue, starting with the current 10937 * blocked I/O and going through every I/O before it on the 10938 * queue. If starting_io is NULL, we'll just end up returning 10939 * CTL_ACTION_PASS. 10940 */ 10941 for (ooa_io = starting_io; ooa_io != NULL; 10942 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10943 ooa_links)){ 10944 10945 /* 10946 * This routine just checks to see whether 10947 * cur_blocked is blocked by ooa_io, which is ahead 10948 * of it in the queue. It doesn't queue/dequeue 10949 * cur_blocked. 10950 */ 10951 action = ctl_check_for_blockage(pending_io, ooa_io); 10952 switch (action) { 10953 case CTL_ACTION_BLOCK: 10954 case CTL_ACTION_OVERLAP: 10955 case CTL_ACTION_OVERLAP_TAG: 10956 case CTL_ACTION_SKIP: 10957 case CTL_ACTION_ERROR: 10958 return (action); 10959 break; /* NOTREACHED */ 10960 case CTL_ACTION_PASS: 10961 break; 10962 default: 10963 panic("invalid action %d", action); 10964 break; /* NOTREACHED */ 10965 } 10966 } 10967 10968 return (CTL_ACTION_PASS); 10969} 10970 10971/* 10972 * Assumptions: 10973 * - An I/O has just completed, and has been removed from the per-LUN OOA 10974 * queue, so some items on the blocked queue may now be unblocked. 10975 */ 10976static int 10977ctl_check_blocked(struct ctl_lun *lun) 10978{ 10979 union ctl_io *cur_blocked, *next_blocked; 10980 10981 mtx_assert(&lun->lun_lock, MA_OWNED); 10982 10983 /* 10984 * Run forward from the head of the blocked queue, checking each 10985 * entry against the I/Os prior to it on the OOA queue to see if 10986 * there is still any blockage. 10987 * 10988 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10989 * with our removing a variable on it while it is traversing the 10990 * list. 10991 */ 10992 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10993 cur_blocked != NULL; cur_blocked = next_blocked) { 10994 union ctl_io *prev_ooa; 10995 ctl_action action; 10996 10997 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10998 blocked_links); 10999 11000 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11001 ctl_ooaq, ooa_links); 11002 11003 /* 11004 * If cur_blocked happens to be the first item in the OOA 11005 * queue now, prev_ooa will be NULL, and the action 11006 * returned will just be CTL_ACTION_PASS. 11007 */ 11008 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11009 11010 switch (action) { 11011 case CTL_ACTION_BLOCK: 11012 /* Nothing to do here, still blocked */ 11013 break; 11014 case CTL_ACTION_OVERLAP: 11015 case CTL_ACTION_OVERLAP_TAG: 11016 /* 11017 * This shouldn't happen! In theory we've already 11018 * checked this command for overlap... 11019 */ 11020 break; 11021 case CTL_ACTION_PASS: 11022 case CTL_ACTION_SKIP: { 11023 struct ctl_softc *softc; 11024 const struct ctl_cmd_entry *entry; 11025 uint32_t initidx; 11026 int isc_retval; 11027 11028 /* 11029 * The skip case shouldn't happen, this transaction 11030 * should have never made it onto the blocked queue. 11031 */ 11032 /* 11033 * This I/O is no longer blocked, we can remove it 11034 * from the blocked queue. Since this is a TAILQ 11035 * (doubly linked list), we can do O(1) removals 11036 * from any place on the list. 11037 */ 11038 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11039 blocked_links); 11040 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11041 11042 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11043 /* 11044 * Need to send IO back to original side to 11045 * run 11046 */ 11047 union ctl_ha_msg msg_info; 11048 11049 msg_info.hdr.original_sc = 11050 cur_blocked->io_hdr.original_sc; 11051 msg_info.hdr.serializing_sc = cur_blocked; 11052 msg_info.hdr.msg_type = CTL_MSG_R2R; 11053 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11054 &msg_info, sizeof(msg_info), 0)) > 11055 CTL_HA_STATUS_SUCCESS) { 11056 printf("CTL:Check Blocked error from " 11057 "ctl_ha_msg_send %d\n", 11058 isc_retval); 11059 } 11060 break; 11061 } 11062 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 11063 softc = control_softc; 11064 11065 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11066 11067 /* 11068 * Check this I/O for LUN state changes that may 11069 * have happened while this command was blocked. 11070 * The LUN state may have been changed by a command 11071 * ahead of us in the queue, so we need to re-check 11072 * for any states that can be caused by SCSI 11073 * commands. 11074 */ 11075 if (ctl_scsiio_lun_check(softc, lun, entry, 11076 &cur_blocked->scsiio) == 0) { 11077 cur_blocked->io_hdr.flags |= 11078 CTL_FLAG_IS_WAS_ON_RTR; 11079 ctl_enqueue_rtr(cur_blocked); 11080 } else 11081 ctl_done(cur_blocked); 11082 break; 11083 } 11084 default: 11085 /* 11086 * This probably shouldn't happen -- we shouldn't 11087 * get CTL_ACTION_ERROR, or anything else. 11088 */ 11089 break; 11090 } 11091 } 11092 11093 return (CTL_RETVAL_COMPLETE); 11094} 11095 11096/* 11097 * This routine (with one exception) checks LUN flags that can be set by 11098 * commands ahead of us in the OOA queue. These flags have to be checked 11099 * when a command initially comes in, and when we pull a command off the 11100 * blocked queue and are preparing to execute it. The reason we have to 11101 * check these flags for commands on the blocked queue is that the LUN 11102 * state may have been changed by a command ahead of us while we're on the 11103 * blocked queue. 11104 * 11105 * Ordering is somewhat important with these checks, so please pay 11106 * careful attention to the placement of any new checks. 11107 */ 11108static int 11109ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11110 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11111{ 11112 int retval; 11113 11114 retval = 0; 11115 11116 mtx_assert(&lun->lun_lock, MA_OWNED); 11117 11118 /* 11119 * If this shelf is a secondary shelf controller, we have to reject 11120 * any media access commands. 11121 */ 11122#if 0 11123 /* No longer needed for HA */ 11124 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11125 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11126 ctl_set_lun_standby(ctsio); 11127 retval = 1; 11128 goto bailout; 11129 } 11130#endif 11131 11132 /* 11133 * Check for a reservation conflict. If this command isn't allowed 11134 * even on reserved LUNs, and if this initiator isn't the one who 11135 * reserved us, reject the command with a reservation conflict. 11136 */ 11137 if ((lun->flags & CTL_LUN_RESERVED) 11138 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11139 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11140 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11141 || (ctsio->io_hdr.nexus.targ_target.id != 11142 lun->rsv_nexus.targ_target.id)) { 11143 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11144 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11145 retval = 1; 11146 goto bailout; 11147 } 11148 } 11149 11150 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11151 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11152 uint32_t residx; 11153 11154 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11155 /* 11156 * if we aren't registered or it's a res holder type 11157 * reservation and this isn't the res holder then set a 11158 * conflict. 11159 * NOTE: Commands which might be allowed on write exclusive 11160 * type reservations are checked in the particular command 11161 * for a conflict. Read and SSU are the only ones. 11162 */ 11163 if (!lun->per_res[residx].registered 11164 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11165 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11166 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11167 retval = 1; 11168 goto bailout; 11169 } 11170 11171 } 11172 11173 if ((lun->flags & CTL_LUN_OFFLINE) 11174 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11175 ctl_set_lun_not_ready(ctsio); 11176 retval = 1; 11177 goto bailout; 11178 } 11179 11180 /* 11181 * If the LUN is stopped, see if this particular command is allowed 11182 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11183 */ 11184 if ((lun->flags & CTL_LUN_STOPPED) 11185 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11186 /* "Logical unit not ready, initializing cmd. required" */ 11187 ctl_set_lun_stopped(ctsio); 11188 retval = 1; 11189 goto bailout; 11190 } 11191 11192 if ((lun->flags & CTL_LUN_INOPERABLE) 11193 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11194 /* "Medium format corrupted" */ 11195 ctl_set_medium_format_corrupted(ctsio); 11196 retval = 1; 11197 goto bailout; 11198 } 11199 11200bailout: 11201 return (retval); 11202 11203} 11204 11205static void 11206ctl_failover_io(union ctl_io *io, int have_lock) 11207{ 11208 ctl_set_busy(&io->scsiio); 11209 ctl_done(io); 11210} 11211 11212static void 11213ctl_failover(void) 11214{ 11215 struct ctl_lun *lun; 11216 struct ctl_softc *ctl_softc; 11217 union ctl_io *next_io, *pending_io; 11218 union ctl_io *io; 11219 int lun_idx; 11220 int i; 11221 11222 ctl_softc = control_softc; 11223 11224 mtx_lock(&ctl_softc->ctl_lock); 11225 /* 11226 * Remove any cmds from the other SC from the rtr queue. These 11227 * will obviously only be for LUNs for which we're the primary. 11228 * We can't send status or get/send data for these commands. 11229 * Since they haven't been executed yet, we can just remove them. 11230 * We'll either abort them or delete them below, depending on 11231 * which HA mode we're in. 11232 */ 11233#ifdef notyet 11234 mtx_lock(&ctl_softc->queue_lock); 11235 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11236 io != NULL; io = next_io) { 11237 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11238 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11239 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11240 ctl_io_hdr, links); 11241 } 11242 mtx_unlock(&ctl_softc->queue_lock); 11243#endif 11244 11245 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11246 lun = ctl_softc->ctl_luns[lun_idx]; 11247 if (lun==NULL) 11248 continue; 11249 11250 /* 11251 * Processor LUNs are primary on both sides. 11252 * XXX will this always be true? 11253 */ 11254 if (lun->be_lun->lun_type == T_PROCESSOR) 11255 continue; 11256 11257 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11258 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11259 printf("FAILOVER: primary lun %d\n", lun_idx); 11260 /* 11261 * Remove all commands from the other SC. First from the 11262 * blocked queue then from the ooa queue. Once we have 11263 * removed them. Call ctl_check_blocked to see if there 11264 * is anything that can run. 11265 */ 11266 for (io = (union ctl_io *)TAILQ_FIRST( 11267 &lun->blocked_queue); io != NULL; io = next_io) { 11268 11269 next_io = (union ctl_io *)TAILQ_NEXT( 11270 &io->io_hdr, blocked_links); 11271 11272 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11273 TAILQ_REMOVE(&lun->blocked_queue, 11274 &io->io_hdr,blocked_links); 11275 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11276 TAILQ_REMOVE(&lun->ooa_queue, 11277 &io->io_hdr, ooa_links); 11278 11279 ctl_free_io(io); 11280 } 11281 } 11282 11283 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11284 io != NULL; io = next_io) { 11285 11286 next_io = (union ctl_io *)TAILQ_NEXT( 11287 &io->io_hdr, ooa_links); 11288 11289 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11290 11291 TAILQ_REMOVE(&lun->ooa_queue, 11292 &io->io_hdr, 11293 ooa_links); 11294 11295 ctl_free_io(io); 11296 } 11297 } 11298 ctl_check_blocked(lun); 11299 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11300 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11301 11302 printf("FAILOVER: primary lun %d\n", lun_idx); 11303 /* 11304 * Abort all commands from the other SC. We can't 11305 * send status back for them now. These should get 11306 * cleaned up when they are completed or come out 11307 * for a datamove operation. 11308 */ 11309 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11310 io != NULL; io = next_io) { 11311 next_io = (union ctl_io *)TAILQ_NEXT( 11312 &io->io_hdr, ooa_links); 11313 11314 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11315 io->io_hdr.flags |= CTL_FLAG_ABORT; 11316 } 11317 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11318 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11319 11320 printf("FAILOVER: secondary lun %d\n", lun_idx); 11321 11322 lun->flags |= CTL_LUN_PRIMARY_SC; 11323 11324 /* 11325 * We send all I/O that was sent to this controller 11326 * and redirected to the other side back with 11327 * busy status, and have the initiator retry it. 11328 * Figuring out how much data has been transferred, 11329 * etc. and picking up where we left off would be 11330 * very tricky. 11331 * 11332 * XXX KDM need to remove I/O from the blocked 11333 * queue as well! 11334 */ 11335 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11336 &lun->ooa_queue); pending_io != NULL; 11337 pending_io = next_io) { 11338 11339 next_io = (union ctl_io *)TAILQ_NEXT( 11340 &pending_io->io_hdr, ooa_links); 11341 11342 pending_io->io_hdr.flags &= 11343 ~CTL_FLAG_SENT_2OTHER_SC; 11344 11345 if (pending_io->io_hdr.flags & 11346 CTL_FLAG_IO_ACTIVE) { 11347 pending_io->io_hdr.flags |= 11348 CTL_FLAG_FAILOVER; 11349 } else { 11350 ctl_set_busy(&pending_io->scsiio); 11351 ctl_done(pending_io); 11352 } 11353 } 11354 11355 /* 11356 * Build Unit Attention 11357 */ 11358 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11359 lun->pending_ua[i] |= 11360 CTL_UA_ASYM_ACC_CHANGE; 11361 } 11362 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11363 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11364 printf("FAILOVER: secondary lun %d\n", lun_idx); 11365 /* 11366 * if the first io on the OOA is not on the RtR queue 11367 * add it. 11368 */ 11369 lun->flags |= CTL_LUN_PRIMARY_SC; 11370 11371 pending_io = (union ctl_io *)TAILQ_FIRST( 11372 &lun->ooa_queue); 11373 if (pending_io==NULL) { 11374 printf("Nothing on OOA queue\n"); 11375 continue; 11376 } 11377 11378 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11379 if ((pending_io->io_hdr.flags & 11380 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11381 pending_io->io_hdr.flags |= 11382 CTL_FLAG_IS_WAS_ON_RTR; 11383 ctl_enqueue_rtr(pending_io); 11384 } 11385#if 0 11386 else 11387 { 11388 printf("Tag 0x%04x is running\n", 11389 pending_io->scsiio.tag_num); 11390 } 11391#endif 11392 11393 next_io = (union ctl_io *)TAILQ_NEXT( 11394 &pending_io->io_hdr, ooa_links); 11395 for (pending_io=next_io; pending_io != NULL; 11396 pending_io = next_io) { 11397 pending_io->io_hdr.flags &= 11398 ~CTL_FLAG_SENT_2OTHER_SC; 11399 next_io = (union ctl_io *)TAILQ_NEXT( 11400 &pending_io->io_hdr, ooa_links); 11401 if (pending_io->io_hdr.flags & 11402 CTL_FLAG_IS_WAS_ON_RTR) { 11403#if 0 11404 printf("Tag 0x%04x is running\n", 11405 pending_io->scsiio.tag_num); 11406#endif 11407 continue; 11408 } 11409 11410 switch (ctl_check_ooa(lun, pending_io, 11411 (union ctl_io *)TAILQ_PREV( 11412 &pending_io->io_hdr, ctl_ooaq, 11413 ooa_links))) { 11414 11415 case CTL_ACTION_BLOCK: 11416 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11417 &pending_io->io_hdr, 11418 blocked_links); 11419 pending_io->io_hdr.flags |= 11420 CTL_FLAG_BLOCKED; 11421 break; 11422 case CTL_ACTION_PASS: 11423 case CTL_ACTION_SKIP: 11424 pending_io->io_hdr.flags |= 11425 CTL_FLAG_IS_WAS_ON_RTR; 11426 ctl_enqueue_rtr(pending_io); 11427 break; 11428 case CTL_ACTION_OVERLAP: 11429 ctl_set_overlapped_cmd( 11430 (struct ctl_scsiio *)pending_io); 11431 ctl_done(pending_io); 11432 break; 11433 case CTL_ACTION_OVERLAP_TAG: 11434 ctl_set_overlapped_tag( 11435 (struct ctl_scsiio *)pending_io, 11436 pending_io->scsiio.tag_num & 0xff); 11437 ctl_done(pending_io); 11438 break; 11439 case CTL_ACTION_ERROR: 11440 default: 11441 ctl_set_internal_failure( 11442 (struct ctl_scsiio *)pending_io, 11443 0, // sks_valid 11444 0); //retry count 11445 ctl_done(pending_io); 11446 break; 11447 } 11448 } 11449 11450 /* 11451 * Build Unit Attention 11452 */ 11453 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11454 lun->pending_ua[i] |= 11455 CTL_UA_ASYM_ACC_CHANGE; 11456 } 11457 } else { 11458 panic("Unhandled HA mode failover, LUN flags = %#x, " 11459 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11460 } 11461 } 11462 ctl_pause_rtr = 0; 11463 mtx_unlock(&ctl_softc->ctl_lock); 11464} 11465 11466static int 11467ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11468{ 11469 struct ctl_lun *lun; 11470 const struct ctl_cmd_entry *entry; 11471 uint32_t initidx, targ_lun; 11472 int retval; 11473 11474 retval = 0; 11475 11476 lun = NULL; 11477 11478 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11479 if ((targ_lun < CTL_MAX_LUNS) 11480 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11481 lun = ctl_softc->ctl_luns[targ_lun]; 11482 /* 11483 * If the LUN is invalid, pretend that it doesn't exist. 11484 * It will go away as soon as all pending I/O has been 11485 * completed. 11486 */ 11487 if (lun->flags & CTL_LUN_DISABLED) { 11488 lun = NULL; 11489 } else { 11490 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11491 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11492 lun->be_lun; 11493 if (lun->be_lun->lun_type == T_PROCESSOR) { 11494 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11495 } 11496 11497 /* 11498 * Every I/O goes into the OOA queue for a 11499 * particular LUN, and stays there until completion. 11500 */ 11501 mtx_lock(&lun->lun_lock); 11502 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11503 ooa_links); 11504 } 11505 } else { 11506 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11507 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11508 } 11509 11510 /* Get command entry and return error if it is unsuppotyed. */ 11511 entry = ctl_validate_command(ctsio); 11512 if (entry == NULL) { 11513 if (lun) 11514 mtx_unlock(&lun->lun_lock); 11515 return (retval); 11516 } 11517 11518 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11519 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11520 11521 /* 11522 * Check to see whether we can send this command to LUNs that don't 11523 * exist. This should pretty much only be the case for inquiry 11524 * and request sense. Further checks, below, really require having 11525 * a LUN, so we can't really check the command anymore. Just put 11526 * it on the rtr queue. 11527 */ 11528 if (lun == NULL) { 11529 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11530 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11531 ctl_enqueue_rtr((union ctl_io *)ctsio); 11532 return (retval); 11533 } 11534 11535 ctl_set_unsupported_lun(ctsio); 11536 ctl_done((union ctl_io *)ctsio); 11537 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11538 return (retval); 11539 } else { 11540 /* 11541 * Make sure we support this particular command on this LUN. 11542 * e.g., we don't support writes to the control LUN. 11543 */ 11544 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11545 mtx_unlock(&lun->lun_lock); 11546 ctl_set_invalid_opcode(ctsio); 11547 ctl_done((union ctl_io *)ctsio); 11548 return (retval); 11549 } 11550 } 11551 11552 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11553 11554#ifdef CTL_WITH_CA 11555 /* 11556 * If we've got a request sense, it'll clear the contingent 11557 * allegiance condition. Otherwise, if we have a CA condition for 11558 * this initiator, clear it, because it sent down a command other 11559 * than request sense. 11560 */ 11561 if ((ctsio->cdb[0] != REQUEST_SENSE) 11562 && (ctl_is_set(lun->have_ca, initidx))) 11563 ctl_clear_mask(lun->have_ca, initidx); 11564#endif 11565 11566 /* 11567 * If the command has this flag set, it handles its own unit 11568 * attention reporting, we shouldn't do anything. Otherwise we 11569 * check for any pending unit attentions, and send them back to the 11570 * initiator. We only do this when a command initially comes in, 11571 * not when we pull it off the blocked queue. 11572 * 11573 * According to SAM-3, section 5.3.2, the order that things get 11574 * presented back to the host is basically unit attentions caused 11575 * by some sort of reset event, busy status, reservation conflicts 11576 * or task set full, and finally any other status. 11577 * 11578 * One issue here is that some of the unit attentions we report 11579 * don't fall into the "reset" category (e.g. "reported luns data 11580 * has changed"). So reporting it here, before the reservation 11581 * check, may be technically wrong. I guess the only thing to do 11582 * would be to check for and report the reset events here, and then 11583 * check for the other unit attention types after we check for a 11584 * reservation conflict. 11585 * 11586 * XXX KDM need to fix this 11587 */ 11588 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11589 ctl_ua_type ua_type; 11590 11591 ua_type = lun->pending_ua[initidx]; 11592 if (ua_type != CTL_UA_NONE) { 11593 scsi_sense_data_type sense_format; 11594 11595 if (lun != NULL) 11596 sense_format = (lun->flags & 11597 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11598 SSD_TYPE_FIXED; 11599 else 11600 sense_format = SSD_TYPE_FIXED; 11601 11602 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11603 sense_format); 11604 if (ua_type != CTL_UA_NONE) { 11605 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11606 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11607 CTL_AUTOSENSE; 11608 ctsio->sense_len = SSD_FULL_SIZE; 11609 lun->pending_ua[initidx] &= ~ua_type; 11610 mtx_unlock(&lun->lun_lock); 11611 ctl_done((union ctl_io *)ctsio); 11612 return (retval); 11613 } 11614 } 11615 } 11616 11617 11618 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11619 mtx_unlock(&lun->lun_lock); 11620 ctl_done((union ctl_io *)ctsio); 11621 return (retval); 11622 } 11623 11624 /* 11625 * XXX CHD this is where we want to send IO to other side if 11626 * this LUN is secondary on this SC. We will need to make a copy 11627 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11628 * the copy we send as FROM_OTHER. 11629 * We also need to stuff the address of the original IO so we can 11630 * find it easily. Something similar will need be done on the other 11631 * side so when we are done we can find the copy. 11632 */ 11633 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11634 union ctl_ha_msg msg_info; 11635 int isc_retval; 11636 11637 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11638 11639 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11640 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11641#if 0 11642 printf("1. ctsio %p\n", ctsio); 11643#endif 11644 msg_info.hdr.serializing_sc = NULL; 11645 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11646 msg_info.scsi.tag_num = ctsio->tag_num; 11647 msg_info.scsi.tag_type = ctsio->tag_type; 11648 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11649 11650 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11651 11652 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11653 (void *)&msg_info, sizeof(msg_info), 0)) > 11654 CTL_HA_STATUS_SUCCESS) { 11655 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11656 isc_retval); 11657 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11658 } else { 11659#if 0 11660 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11661#endif 11662 } 11663 11664 /* 11665 * XXX KDM this I/O is off the incoming queue, but hasn't 11666 * been inserted on any other queue. We may need to come 11667 * up with a holding queue while we wait for serialization 11668 * so that we have an idea of what we're waiting for from 11669 * the other side. 11670 */ 11671 mtx_unlock(&lun->lun_lock); 11672 return (retval); 11673 } 11674 11675 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11676 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11677 ctl_ooaq, ooa_links))) { 11678 case CTL_ACTION_BLOCK: 11679 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11680 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11681 blocked_links); 11682 mtx_unlock(&lun->lun_lock); 11683 return (retval); 11684 case CTL_ACTION_PASS: 11685 case CTL_ACTION_SKIP: 11686 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11687 mtx_unlock(&lun->lun_lock); 11688 ctl_enqueue_rtr((union ctl_io *)ctsio); 11689 break; 11690 case CTL_ACTION_OVERLAP: 11691 mtx_unlock(&lun->lun_lock); 11692 ctl_set_overlapped_cmd(ctsio); 11693 ctl_done((union ctl_io *)ctsio); 11694 break; 11695 case CTL_ACTION_OVERLAP_TAG: 11696 mtx_unlock(&lun->lun_lock); 11697 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11698 ctl_done((union ctl_io *)ctsio); 11699 break; 11700 case CTL_ACTION_ERROR: 11701 default: 11702 mtx_unlock(&lun->lun_lock); 11703 ctl_set_internal_failure(ctsio, 11704 /*sks_valid*/ 0, 11705 /*retry_count*/ 0); 11706 ctl_done((union ctl_io *)ctsio); 11707 break; 11708 } 11709 return (retval); 11710} 11711 11712const struct ctl_cmd_entry * 11713ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11714{ 11715 const struct ctl_cmd_entry *entry; 11716 int service_action; 11717 11718 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11719 if (entry->flags & CTL_CMD_FLAG_SA5) { 11720 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11721 entry = &((const struct ctl_cmd_entry *) 11722 entry->execute)[service_action]; 11723 } 11724 return (entry); 11725} 11726 11727const struct ctl_cmd_entry * 11728ctl_validate_command(struct ctl_scsiio *ctsio) 11729{ 11730 const struct ctl_cmd_entry *entry; 11731 int i; 11732 uint8_t diff; 11733 11734 entry = ctl_get_cmd_entry(ctsio); 11735 if (entry->execute == NULL) { 11736 ctl_set_invalid_opcode(ctsio); 11737 ctl_done((union ctl_io *)ctsio); 11738 return (NULL); 11739 } 11740 KASSERT(entry->length > 0, 11741 ("Not defined length for command 0x%02x/0x%02x", 11742 ctsio->cdb[0], ctsio->cdb[1])); 11743 for (i = 1; i < entry->length; i++) { 11744 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11745 if (diff == 0) 11746 continue; 11747 ctl_set_invalid_field(ctsio, 11748 /*sks_valid*/ 1, 11749 /*command*/ 1, 11750 /*field*/ i, 11751 /*bit_valid*/ 1, 11752 /*bit*/ fls(diff) - 1); 11753 ctl_done((union ctl_io *)ctsio); 11754 return (NULL); 11755 } 11756 return (entry); 11757} 11758 11759static int 11760ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11761{ 11762 11763 switch (lun_type) { 11764 case T_PROCESSOR: 11765 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11766 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11767 return (0); 11768 break; 11769 case T_DIRECT: 11770 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11771 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11772 return (0); 11773 break; 11774 default: 11775 return (0); 11776 } 11777 return (1); 11778} 11779 11780static int 11781ctl_scsiio(struct ctl_scsiio *ctsio) 11782{ 11783 int retval; 11784 const struct ctl_cmd_entry *entry; 11785 11786 retval = CTL_RETVAL_COMPLETE; 11787 11788 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11789 11790 entry = ctl_get_cmd_entry(ctsio); 11791 11792 /* 11793 * If this I/O has been aborted, just send it straight to 11794 * ctl_done() without executing it. 11795 */ 11796 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11797 ctl_done((union ctl_io *)ctsio); 11798 goto bailout; 11799 } 11800 11801 /* 11802 * All the checks should have been handled by ctl_scsiio_precheck(). 11803 * We should be clear now to just execute the I/O. 11804 */ 11805 retval = entry->execute(ctsio); 11806 11807bailout: 11808 return (retval); 11809} 11810 11811/* 11812 * Since we only implement one target right now, a bus reset simply resets 11813 * our single target. 11814 */ 11815static int 11816ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11817{ 11818 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11819} 11820 11821static int 11822ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11823 ctl_ua_type ua_type) 11824{ 11825 struct ctl_lun *lun; 11826 int retval; 11827 11828 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11829 union ctl_ha_msg msg_info; 11830 11831 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11832 msg_info.hdr.nexus = io->io_hdr.nexus; 11833 if (ua_type==CTL_UA_TARG_RESET) 11834 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11835 else 11836 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11837 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11838 msg_info.hdr.original_sc = NULL; 11839 msg_info.hdr.serializing_sc = NULL; 11840 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11841 (void *)&msg_info, sizeof(msg_info), 0)) { 11842 } 11843 } 11844 retval = 0; 11845 11846 mtx_lock(&ctl_softc->ctl_lock); 11847 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11848 retval += ctl_lun_reset(lun, io, ua_type); 11849 mtx_unlock(&ctl_softc->ctl_lock); 11850 11851 return (retval); 11852} 11853 11854/* 11855 * The LUN should always be set. The I/O is optional, and is used to 11856 * distinguish between I/Os sent by this initiator, and by other 11857 * initiators. We set unit attention for initiators other than this one. 11858 * SAM-3 is vague on this point. It does say that a unit attention should 11859 * be established for other initiators when a LUN is reset (see section 11860 * 5.7.3), but it doesn't specifically say that the unit attention should 11861 * be established for this particular initiator when a LUN is reset. Here 11862 * is the relevant text, from SAM-3 rev 8: 11863 * 11864 * 5.7.2 When a SCSI initiator port aborts its own tasks 11865 * 11866 * When a SCSI initiator port causes its own task(s) to be aborted, no 11867 * notification that the task(s) have been aborted shall be returned to 11868 * the SCSI initiator port other than the completion response for the 11869 * command or task management function action that caused the task(s) to 11870 * be aborted and notification(s) associated with related effects of the 11871 * action (e.g., a reset unit attention condition). 11872 * 11873 * XXX KDM for now, we're setting unit attention for all initiators. 11874 */ 11875static int 11876ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11877{ 11878 union ctl_io *xio; 11879#if 0 11880 uint32_t initindex; 11881#endif 11882 int i; 11883 11884 mtx_lock(&lun->lun_lock); 11885 /* 11886 * Run through the OOA queue and abort each I/O. 11887 */ 11888#if 0 11889 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11890#endif 11891 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11892 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11893 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11894 } 11895 11896 /* 11897 * This version sets unit attention for every 11898 */ 11899#if 0 11900 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11901 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11902 if (initindex == i) 11903 continue; 11904 lun->pending_ua[i] |= ua_type; 11905 } 11906#endif 11907 11908 /* 11909 * A reset (any kind, really) clears reservations established with 11910 * RESERVE/RELEASE. It does not clear reservations established 11911 * with PERSISTENT RESERVE OUT, but we don't support that at the 11912 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11913 * reservations made with the RESERVE/RELEASE commands, because 11914 * those commands are obsolete in SPC-3. 11915 */ 11916 lun->flags &= ~CTL_LUN_RESERVED; 11917 11918 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11919#ifdef CTL_WITH_CA 11920 ctl_clear_mask(lun->have_ca, i); 11921#endif 11922 lun->pending_ua[i] |= ua_type; 11923 } 11924 mtx_unlock(&lun->lun_lock); 11925 11926 return (0); 11927} 11928 11929static int 11930ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11931 int other_sc) 11932{ 11933 union ctl_io *xio; 11934 int found; 11935 11936 mtx_assert(&lun->lun_lock, MA_OWNED); 11937 11938 /* 11939 * Run through the OOA queue and attempt to find the given I/O. 11940 * The target port, initiator ID, tag type and tag number have to 11941 * match the values that we got from the initiator. If we have an 11942 * untagged command to abort, simply abort the first untagged command 11943 * we come to. We only allow one untagged command at a time of course. 11944 */ 11945 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11946 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11947 11948 if ((targ_port == UINT32_MAX || 11949 targ_port == xio->io_hdr.nexus.targ_port) && 11950 (init_id == UINT32_MAX || 11951 init_id == xio->io_hdr.nexus.initid.id)) { 11952 if (targ_port != xio->io_hdr.nexus.targ_port || 11953 init_id != xio->io_hdr.nexus.initid.id) 11954 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11955 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11956 found = 1; 11957 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11958 union ctl_ha_msg msg_info; 11959 11960 msg_info.hdr.nexus = xio->io_hdr.nexus; 11961 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11962 msg_info.task.tag_num = xio->scsiio.tag_num; 11963 msg_info.task.tag_type = xio->scsiio.tag_type; 11964 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11965 msg_info.hdr.original_sc = NULL; 11966 msg_info.hdr.serializing_sc = NULL; 11967 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11968 (void *)&msg_info, sizeof(msg_info), 0); 11969 } 11970 } 11971 } 11972 return (found); 11973} 11974 11975static int 11976ctl_abort_task_set(union ctl_io *io) 11977{ 11978 struct ctl_softc *softc = control_softc; 11979 struct ctl_lun *lun; 11980 uint32_t targ_lun; 11981 11982 /* 11983 * Look up the LUN. 11984 */ 11985 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11986 mtx_lock(&softc->ctl_lock); 11987 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11988 lun = softc->ctl_luns[targ_lun]; 11989 else { 11990 mtx_unlock(&softc->ctl_lock); 11991 return (1); 11992 } 11993 11994 mtx_lock(&lun->lun_lock); 11995 mtx_unlock(&softc->ctl_lock); 11996 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11997 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11998 io->io_hdr.nexus.initid.id, 11999 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12000 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12001 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12002 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12003 } 12004 mtx_unlock(&lun->lun_lock); 12005 return (0); 12006} 12007 12008static int 12009ctl_i_t_nexus_reset(union ctl_io *io) 12010{ 12011 struct ctl_softc *softc = control_softc; 12012 struct ctl_lun *lun; 12013 uint32_t initindex; 12014 12015 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12016 mtx_lock(&softc->ctl_lock); 12017 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12018 mtx_lock(&lun->lun_lock); 12019 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12020 io->io_hdr.nexus.initid.id, 12021 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12022#ifdef CTL_WITH_CA 12023 ctl_clear_mask(lun->have_ca, initindex); 12024#endif 12025 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12026 mtx_unlock(&lun->lun_lock); 12027 } 12028 mtx_unlock(&softc->ctl_lock); 12029 return (0); 12030} 12031 12032static int 12033ctl_abort_task(union ctl_io *io) 12034{ 12035 union ctl_io *xio; 12036 struct ctl_lun *lun; 12037 struct ctl_softc *ctl_softc; 12038#if 0 12039 struct sbuf sb; 12040 char printbuf[128]; 12041#endif 12042 int found; 12043 uint32_t targ_lun; 12044 12045 ctl_softc = control_softc; 12046 found = 0; 12047 12048 /* 12049 * Look up the LUN. 12050 */ 12051 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12052 mtx_lock(&ctl_softc->ctl_lock); 12053 if ((targ_lun < CTL_MAX_LUNS) 12054 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12055 lun = ctl_softc->ctl_luns[targ_lun]; 12056 else { 12057 mtx_unlock(&ctl_softc->ctl_lock); 12058 return (1); 12059 } 12060 12061#if 0 12062 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12063 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12064#endif 12065 12066 mtx_lock(&lun->lun_lock); 12067 mtx_unlock(&ctl_softc->ctl_lock); 12068 /* 12069 * Run through the OOA queue and attempt to find the given I/O. 12070 * The target port, initiator ID, tag type and tag number have to 12071 * match the values that we got from the initiator. If we have an 12072 * untagged command to abort, simply abort the first untagged command 12073 * we come to. We only allow one untagged command at a time of course. 12074 */ 12075#if 0 12076 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12077#endif 12078 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12079 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12080#if 0 12081 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12082 12083 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12084 lun->lun, xio->scsiio.tag_num, 12085 xio->scsiio.tag_type, 12086 (xio->io_hdr.blocked_links.tqe_prev 12087 == NULL) ? "" : " BLOCKED", 12088 (xio->io_hdr.flags & 12089 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12090 (xio->io_hdr.flags & 12091 CTL_FLAG_ABORT) ? " ABORT" : "", 12092 (xio->io_hdr.flags & 12093 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12094 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12095 sbuf_finish(&sb); 12096 printf("%s\n", sbuf_data(&sb)); 12097#endif 12098 12099 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12100 && (xio->io_hdr.nexus.initid.id == 12101 io->io_hdr.nexus.initid.id)) { 12102 /* 12103 * If the abort says that the task is untagged, the 12104 * task in the queue must be untagged. Otherwise, 12105 * we just check to see whether the tag numbers 12106 * match. This is because the QLogic firmware 12107 * doesn't pass back the tag type in an abort 12108 * request. 12109 */ 12110#if 0 12111 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12112 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12113 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12114#endif 12115 /* 12116 * XXX KDM we've got problems with FC, because it 12117 * doesn't send down a tag type with aborts. So we 12118 * can only really go by the tag number... 12119 * This may cause problems with parallel SCSI. 12120 * Need to figure that out!! 12121 */ 12122 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12123 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12124 found = 1; 12125 if ((io->io_hdr.flags & 12126 CTL_FLAG_FROM_OTHER_SC) == 0 && 12127 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12128 union ctl_ha_msg msg_info; 12129 12130 io->io_hdr.flags |= 12131 CTL_FLAG_SENT_2OTHER_SC; 12132 msg_info.hdr.nexus = io->io_hdr.nexus; 12133 msg_info.task.task_action = 12134 CTL_TASK_ABORT_TASK; 12135 msg_info.task.tag_num = 12136 io->taskio.tag_num; 12137 msg_info.task.tag_type = 12138 io->taskio.tag_type; 12139 msg_info.hdr.msg_type = 12140 CTL_MSG_MANAGE_TASKS; 12141 msg_info.hdr.original_sc = NULL; 12142 msg_info.hdr.serializing_sc = NULL; 12143#if 0 12144 printf("Sent Abort to other side\n"); 12145#endif 12146 if (CTL_HA_STATUS_SUCCESS != 12147 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12148 (void *)&msg_info, 12149 sizeof(msg_info), 0)) { 12150 } 12151 } 12152#if 0 12153 printf("ctl_abort_task: found I/O to abort\n"); 12154#endif 12155 break; 12156 } 12157 } 12158 } 12159 mtx_unlock(&lun->lun_lock); 12160 12161 if (found == 0) { 12162 /* 12163 * This isn't really an error. It's entirely possible for 12164 * the abort and command completion to cross on the wire. 12165 * This is more of an informative/diagnostic error. 12166 */ 12167#if 0 12168 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12169 "%d:%d:%d:%d tag %d type %d\n", 12170 io->io_hdr.nexus.initid.id, 12171 io->io_hdr.nexus.targ_port, 12172 io->io_hdr.nexus.targ_target.id, 12173 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12174 io->taskio.tag_type); 12175#endif 12176 } 12177 return (0); 12178} 12179 12180static void 12181ctl_run_task(union ctl_io *io) 12182{ 12183 struct ctl_softc *ctl_softc = control_softc; 12184 int retval = 1; 12185 const char *task_desc; 12186 12187 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12188 12189 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12190 ("ctl_run_task: Unextected io_type %d\n", 12191 io->io_hdr.io_type)); 12192 12193 task_desc = ctl_scsi_task_string(&io->taskio); 12194 if (task_desc != NULL) { 12195#ifdef NEEDTOPORT 12196 csevent_log(CSC_CTL | CSC_SHELF_SW | 12197 CTL_TASK_REPORT, 12198 csevent_LogType_Trace, 12199 csevent_Severity_Information, 12200 csevent_AlertLevel_Green, 12201 csevent_FRU_Firmware, 12202 csevent_FRU_Unknown, 12203 "CTL: received task: %s",task_desc); 12204#endif 12205 } else { 12206#ifdef NEEDTOPORT 12207 csevent_log(CSC_CTL | CSC_SHELF_SW | 12208 CTL_TASK_REPORT, 12209 csevent_LogType_Trace, 12210 csevent_Severity_Information, 12211 csevent_AlertLevel_Green, 12212 csevent_FRU_Firmware, 12213 csevent_FRU_Unknown, 12214 "CTL: received unknown task " 12215 "type: %d (%#x)", 12216 io->taskio.task_action, 12217 io->taskio.task_action); 12218#endif 12219 } 12220 switch (io->taskio.task_action) { 12221 case CTL_TASK_ABORT_TASK: 12222 retval = ctl_abort_task(io); 12223 break; 12224 case CTL_TASK_ABORT_TASK_SET: 12225 case CTL_TASK_CLEAR_TASK_SET: 12226 retval = ctl_abort_task_set(io); 12227 break; 12228 case CTL_TASK_CLEAR_ACA: 12229 break; 12230 case CTL_TASK_I_T_NEXUS_RESET: 12231 retval = ctl_i_t_nexus_reset(io); 12232 break; 12233 case CTL_TASK_LUN_RESET: { 12234 struct ctl_lun *lun; 12235 uint32_t targ_lun; 12236 12237 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12238 mtx_lock(&ctl_softc->ctl_lock); 12239 if ((targ_lun < CTL_MAX_LUNS) 12240 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12241 lun = ctl_softc->ctl_luns[targ_lun]; 12242 else { 12243 mtx_unlock(&ctl_softc->ctl_lock); 12244 retval = 1; 12245 break; 12246 } 12247 12248 if (!(io->io_hdr.flags & 12249 CTL_FLAG_FROM_OTHER_SC)) { 12250 union ctl_ha_msg msg_info; 12251 12252 io->io_hdr.flags |= 12253 CTL_FLAG_SENT_2OTHER_SC; 12254 msg_info.hdr.msg_type = 12255 CTL_MSG_MANAGE_TASKS; 12256 msg_info.hdr.nexus = io->io_hdr.nexus; 12257 msg_info.task.task_action = 12258 CTL_TASK_LUN_RESET; 12259 msg_info.hdr.original_sc = NULL; 12260 msg_info.hdr.serializing_sc = NULL; 12261 if (CTL_HA_STATUS_SUCCESS != 12262 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12263 (void *)&msg_info, 12264 sizeof(msg_info), 0)) { 12265 } 12266 } 12267 12268 retval = ctl_lun_reset(lun, io, 12269 CTL_UA_LUN_RESET); 12270 mtx_unlock(&ctl_softc->ctl_lock); 12271 break; 12272 } 12273 case CTL_TASK_TARGET_RESET: 12274 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12275 break; 12276 case CTL_TASK_BUS_RESET: 12277 retval = ctl_bus_reset(ctl_softc, io); 12278 break; 12279 case CTL_TASK_PORT_LOGIN: 12280 break; 12281 case CTL_TASK_PORT_LOGOUT: 12282 break; 12283 default: 12284 printf("ctl_run_task: got unknown task management event %d\n", 12285 io->taskio.task_action); 12286 break; 12287 } 12288 if (retval == 0) 12289 io->io_hdr.status = CTL_SUCCESS; 12290 else 12291 io->io_hdr.status = CTL_ERROR; 12292 ctl_done(io); 12293} 12294 12295/* 12296 * For HA operation. Handle commands that come in from the other 12297 * controller. 12298 */ 12299static void 12300ctl_handle_isc(union ctl_io *io) 12301{ 12302 int free_io; 12303 struct ctl_lun *lun; 12304 struct ctl_softc *ctl_softc; 12305 uint32_t targ_lun; 12306 12307 ctl_softc = control_softc; 12308 12309 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12310 lun = ctl_softc->ctl_luns[targ_lun]; 12311 12312 switch (io->io_hdr.msg_type) { 12313 case CTL_MSG_SERIALIZE: 12314 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12315 break; 12316 case CTL_MSG_R2R: { 12317 const struct ctl_cmd_entry *entry; 12318 12319 /* 12320 * This is only used in SER_ONLY mode. 12321 */ 12322 free_io = 0; 12323 entry = ctl_get_cmd_entry(&io->scsiio); 12324 mtx_lock(&lun->lun_lock); 12325 if (ctl_scsiio_lun_check(ctl_softc, lun, 12326 entry, (struct ctl_scsiio *)io) != 0) { 12327 mtx_unlock(&lun->lun_lock); 12328 ctl_done(io); 12329 break; 12330 } 12331 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12332 mtx_unlock(&lun->lun_lock); 12333 ctl_enqueue_rtr(io); 12334 break; 12335 } 12336 case CTL_MSG_FINISH_IO: 12337 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12338 free_io = 0; 12339 ctl_done(io); 12340 } else { 12341 free_io = 1; 12342 mtx_lock(&lun->lun_lock); 12343 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12344 ooa_links); 12345 ctl_check_blocked(lun); 12346 mtx_unlock(&lun->lun_lock); 12347 } 12348 break; 12349 case CTL_MSG_PERS_ACTION: 12350 ctl_hndl_per_res_out_on_other_sc( 12351 (union ctl_ha_msg *)&io->presio.pr_msg); 12352 free_io = 1; 12353 break; 12354 case CTL_MSG_BAD_JUJU: 12355 free_io = 0; 12356 ctl_done(io); 12357 break; 12358 case CTL_MSG_DATAMOVE: 12359 /* Only used in XFER mode */ 12360 free_io = 0; 12361 ctl_datamove_remote(io); 12362 break; 12363 case CTL_MSG_DATAMOVE_DONE: 12364 /* Only used in XFER mode */ 12365 free_io = 0; 12366 io->scsiio.be_move_done(io); 12367 break; 12368 default: 12369 free_io = 1; 12370 printf("%s: Invalid message type %d\n", 12371 __func__, io->io_hdr.msg_type); 12372 break; 12373 } 12374 if (free_io) 12375 ctl_free_io(io); 12376 12377} 12378 12379 12380/* 12381 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12382 * there is no match. 12383 */ 12384static ctl_lun_error_pattern 12385ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12386{ 12387 const struct ctl_cmd_entry *entry; 12388 ctl_lun_error_pattern filtered_pattern, pattern; 12389 12390 pattern = desc->error_pattern; 12391 12392 /* 12393 * XXX KDM we need more data passed into this function to match a 12394 * custom pattern, and we actually need to implement custom pattern 12395 * matching. 12396 */ 12397 if (pattern & CTL_LUN_PAT_CMD) 12398 return (CTL_LUN_PAT_CMD); 12399 12400 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12401 return (CTL_LUN_PAT_ANY); 12402 12403 entry = ctl_get_cmd_entry(ctsio); 12404 12405 filtered_pattern = entry->pattern & pattern; 12406 12407 /* 12408 * If the user requested specific flags in the pattern (e.g. 12409 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12410 * flags. 12411 * 12412 * If the user did not specify any flags, it doesn't matter whether 12413 * or not the command supports the flags. 12414 */ 12415 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12416 (pattern & ~CTL_LUN_PAT_MASK)) 12417 return (CTL_LUN_PAT_NONE); 12418 12419 /* 12420 * If the user asked for a range check, see if the requested LBA 12421 * range overlaps with this command's LBA range. 12422 */ 12423 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12424 uint64_t lba1; 12425 uint32_t len1; 12426 ctl_action action; 12427 int retval; 12428 12429 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12430 if (retval != 0) 12431 return (CTL_LUN_PAT_NONE); 12432 12433 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12434 desc->lba_range.len); 12435 /* 12436 * A "pass" means that the LBA ranges don't overlap, so 12437 * this doesn't match the user's range criteria. 12438 */ 12439 if (action == CTL_ACTION_PASS) 12440 return (CTL_LUN_PAT_NONE); 12441 } 12442 12443 return (filtered_pattern); 12444} 12445 12446static void 12447ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12448{ 12449 struct ctl_error_desc *desc, *desc2; 12450 12451 mtx_assert(&lun->lun_lock, MA_OWNED); 12452 12453 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12454 ctl_lun_error_pattern pattern; 12455 /* 12456 * Check to see whether this particular command matches 12457 * the pattern in the descriptor. 12458 */ 12459 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12460 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12461 continue; 12462 12463 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12464 case CTL_LUN_INJ_ABORTED: 12465 ctl_set_aborted(&io->scsiio); 12466 break; 12467 case CTL_LUN_INJ_MEDIUM_ERR: 12468 ctl_set_medium_error(&io->scsiio); 12469 break; 12470 case CTL_LUN_INJ_UA: 12471 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12472 * OCCURRED */ 12473 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12474 break; 12475 case CTL_LUN_INJ_CUSTOM: 12476 /* 12477 * We're assuming the user knows what he is doing. 12478 * Just copy the sense information without doing 12479 * checks. 12480 */ 12481 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12482 ctl_min(sizeof(desc->custom_sense), 12483 sizeof(io->scsiio.sense_data))); 12484 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12485 io->scsiio.sense_len = SSD_FULL_SIZE; 12486 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12487 break; 12488 case CTL_LUN_INJ_NONE: 12489 default: 12490 /* 12491 * If this is an error injection type we don't know 12492 * about, clear the continuous flag (if it is set) 12493 * so it will get deleted below. 12494 */ 12495 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12496 break; 12497 } 12498 /* 12499 * By default, each error injection action is a one-shot 12500 */ 12501 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12502 continue; 12503 12504 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12505 12506 free(desc, M_CTL); 12507 } 12508} 12509 12510#ifdef CTL_IO_DELAY 12511static void 12512ctl_datamove_timer_wakeup(void *arg) 12513{ 12514 union ctl_io *io; 12515 12516 io = (union ctl_io *)arg; 12517 12518 ctl_datamove(io); 12519} 12520#endif /* CTL_IO_DELAY */ 12521 12522void 12523ctl_datamove(union ctl_io *io) 12524{ 12525 void (*fe_datamove)(union ctl_io *io); 12526 12527 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12528 12529 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12530 12531#ifdef CTL_TIME_IO 12532 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12533 char str[256]; 12534 char path_str[64]; 12535 struct sbuf sb; 12536 12537 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12538 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12539 12540 sbuf_cat(&sb, path_str); 12541 switch (io->io_hdr.io_type) { 12542 case CTL_IO_SCSI: 12543 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12544 sbuf_printf(&sb, "\n"); 12545 sbuf_cat(&sb, path_str); 12546 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12547 io->scsiio.tag_num, io->scsiio.tag_type); 12548 break; 12549 case CTL_IO_TASK: 12550 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12551 "Tag Type: %d\n", io->taskio.task_action, 12552 io->taskio.tag_num, io->taskio.tag_type); 12553 break; 12554 default: 12555 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12556 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12557 break; 12558 } 12559 sbuf_cat(&sb, path_str); 12560 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12561 (intmax_t)time_uptime - io->io_hdr.start_time); 12562 sbuf_finish(&sb); 12563 printf("%s", sbuf_data(&sb)); 12564 } 12565#endif /* CTL_TIME_IO */ 12566 12567#ifdef CTL_IO_DELAY 12568 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12569 struct ctl_lun *lun; 12570 12571 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12572 12573 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12574 } else { 12575 struct ctl_lun *lun; 12576 12577 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12578 if ((lun != NULL) 12579 && (lun->delay_info.datamove_delay > 0)) { 12580 struct callout *callout; 12581 12582 callout = (struct callout *)&io->io_hdr.timer_bytes; 12583 callout_init(callout, /*mpsafe*/ 1); 12584 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12585 callout_reset(callout, 12586 lun->delay_info.datamove_delay * hz, 12587 ctl_datamove_timer_wakeup, io); 12588 if (lun->delay_info.datamove_type == 12589 CTL_DELAY_TYPE_ONESHOT) 12590 lun->delay_info.datamove_delay = 0; 12591 return; 12592 } 12593 } 12594#endif 12595 12596 /* 12597 * This command has been aborted. Set the port status, so we fail 12598 * the data move. 12599 */ 12600 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12601 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12602 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12603 io->io_hdr.nexus.targ_port, 12604 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12605 io->io_hdr.nexus.targ_lun); 12606 io->io_hdr.port_status = 31337; 12607 /* 12608 * Note that the backend, in this case, will get the 12609 * callback in its context. In other cases it may get 12610 * called in the frontend's interrupt thread context. 12611 */ 12612 io->scsiio.be_move_done(io); 12613 return; 12614 } 12615 12616 /* 12617 * If we're in XFER mode and this I/O is from the other shelf 12618 * controller, we need to send the DMA to the other side to 12619 * actually transfer the data to/from the host. In serialize only 12620 * mode the transfer happens below CTL and ctl_datamove() is only 12621 * called on the machine that originally received the I/O. 12622 */ 12623 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12624 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12625 union ctl_ha_msg msg; 12626 uint32_t sg_entries_sent; 12627 int do_sg_copy; 12628 int i; 12629 12630 memset(&msg, 0, sizeof(msg)); 12631 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12632 msg.hdr.original_sc = io->io_hdr.original_sc; 12633 msg.hdr.serializing_sc = io; 12634 msg.hdr.nexus = io->io_hdr.nexus; 12635 msg.dt.flags = io->io_hdr.flags; 12636 /* 12637 * We convert everything into a S/G list here. We can't 12638 * pass by reference, only by value between controllers. 12639 * So we can't pass a pointer to the S/G list, only as many 12640 * S/G entries as we can fit in here. If it's possible for 12641 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12642 * then we need to break this up into multiple transfers. 12643 */ 12644 if (io->scsiio.kern_sg_entries == 0) { 12645 msg.dt.kern_sg_entries = 1; 12646 /* 12647 * If this is in cached memory, flush the cache 12648 * before we send the DMA request to the other 12649 * controller. We want to do this in either the 12650 * read or the write case. The read case is 12651 * straightforward. In the write case, we want to 12652 * make sure nothing is in the local cache that 12653 * could overwrite the DMAed data. 12654 */ 12655 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12656 /* 12657 * XXX KDM use bus_dmamap_sync() here. 12658 */ 12659 } 12660 12661 /* 12662 * Convert to a physical address if this is a 12663 * virtual address. 12664 */ 12665 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12666 msg.dt.sg_list[0].addr = 12667 io->scsiio.kern_data_ptr; 12668 } else { 12669 /* 12670 * XXX KDM use busdma here! 12671 */ 12672#if 0 12673 msg.dt.sg_list[0].addr = (void *) 12674 vtophys(io->scsiio.kern_data_ptr); 12675#endif 12676 } 12677 12678 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12679 do_sg_copy = 0; 12680 } else { 12681 struct ctl_sg_entry *sgl; 12682 12683 do_sg_copy = 1; 12684 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12685 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12686 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12687 /* 12688 * XXX KDM use bus_dmamap_sync() here. 12689 */ 12690 } 12691 } 12692 12693 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12694 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12695 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12696 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12697 msg.dt.sg_sequence = 0; 12698 12699 /* 12700 * Loop until we've sent all of the S/G entries. On the 12701 * other end, we'll recompose these S/G entries into one 12702 * contiguous list before passing it to the 12703 */ 12704 for (sg_entries_sent = 0; sg_entries_sent < 12705 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12706 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12707 sizeof(msg.dt.sg_list[0])), 12708 msg.dt.kern_sg_entries - sg_entries_sent); 12709 12710 if (do_sg_copy != 0) { 12711 struct ctl_sg_entry *sgl; 12712 int j; 12713 12714 sgl = (struct ctl_sg_entry *) 12715 io->scsiio.kern_data_ptr; 12716 /* 12717 * If this is in cached memory, flush the cache 12718 * before we send the DMA request to the other 12719 * controller. We want to do this in either 12720 * the * read or the write case. The read 12721 * case is straightforward. In the write 12722 * case, we want to make sure nothing is 12723 * in the local cache that could overwrite 12724 * the DMAed data. 12725 */ 12726 12727 for (i = sg_entries_sent, j = 0; 12728 i < msg.dt.cur_sg_entries; i++, j++) { 12729 if ((io->io_hdr.flags & 12730 CTL_FLAG_NO_DATASYNC) == 0) { 12731 /* 12732 * XXX KDM use bus_dmamap_sync() 12733 */ 12734 } 12735 if ((io->io_hdr.flags & 12736 CTL_FLAG_BUS_ADDR) == 0) { 12737 /* 12738 * XXX KDM use busdma. 12739 */ 12740#if 0 12741 msg.dt.sg_list[j].addr =(void *) 12742 vtophys(sgl[i].addr); 12743#endif 12744 } else { 12745 msg.dt.sg_list[j].addr = 12746 sgl[i].addr; 12747 } 12748 msg.dt.sg_list[j].len = sgl[i].len; 12749 } 12750 } 12751 12752 sg_entries_sent += msg.dt.cur_sg_entries; 12753 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12754 msg.dt.sg_last = 1; 12755 else 12756 msg.dt.sg_last = 0; 12757 12758 /* 12759 * XXX KDM drop and reacquire the lock here? 12760 */ 12761 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12762 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12763 /* 12764 * XXX do something here. 12765 */ 12766 } 12767 12768 msg.dt.sent_sg_entries = sg_entries_sent; 12769 } 12770 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12771 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12772 ctl_failover_io(io, /*have_lock*/ 0); 12773 12774 } else { 12775 12776 /* 12777 * Lookup the fe_datamove() function for this particular 12778 * front end. 12779 */ 12780 fe_datamove = 12781 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12782 12783 fe_datamove(io); 12784 } 12785} 12786 12787static void 12788ctl_send_datamove_done(union ctl_io *io, int have_lock) 12789{ 12790 union ctl_ha_msg msg; 12791 int isc_status; 12792 12793 memset(&msg, 0, sizeof(msg)); 12794 12795 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12796 msg.hdr.original_sc = io; 12797 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12798 msg.hdr.nexus = io->io_hdr.nexus; 12799 msg.hdr.status = io->io_hdr.status; 12800 msg.scsi.tag_num = io->scsiio.tag_num; 12801 msg.scsi.tag_type = io->scsiio.tag_type; 12802 msg.scsi.scsi_status = io->scsiio.scsi_status; 12803 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12804 sizeof(io->scsiio.sense_data)); 12805 msg.scsi.sense_len = io->scsiio.sense_len; 12806 msg.scsi.sense_residual = io->scsiio.sense_residual; 12807 msg.scsi.fetd_status = io->io_hdr.port_status; 12808 msg.scsi.residual = io->scsiio.residual; 12809 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12810 12811 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12812 ctl_failover_io(io, /*have_lock*/ have_lock); 12813 return; 12814 } 12815 12816 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12817 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12818 /* XXX do something if this fails */ 12819 } 12820 12821} 12822 12823/* 12824 * The DMA to the remote side is done, now we need to tell the other side 12825 * we're done so it can continue with its data movement. 12826 */ 12827static void 12828ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12829{ 12830 union ctl_io *io; 12831 12832 io = rq->context; 12833 12834 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12835 printf("%s: ISC DMA write failed with error %d", __func__, 12836 rq->ret); 12837 ctl_set_internal_failure(&io->scsiio, 12838 /*sks_valid*/ 1, 12839 /*retry_count*/ rq->ret); 12840 } 12841 12842 ctl_dt_req_free(rq); 12843 12844 /* 12845 * In this case, we had to malloc the memory locally. Free it. 12846 */ 12847 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12848 int i; 12849 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12850 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12851 } 12852 /* 12853 * The data is in local and remote memory, so now we need to send 12854 * status (good or back) back to the other side. 12855 */ 12856 ctl_send_datamove_done(io, /*have_lock*/ 0); 12857} 12858 12859/* 12860 * We've moved the data from the host/controller into local memory. Now we 12861 * need to push it over to the remote controller's memory. 12862 */ 12863static int 12864ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12865{ 12866 int retval; 12867 12868 retval = 0; 12869 12870 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12871 ctl_datamove_remote_write_cb); 12872 12873 return (retval); 12874} 12875 12876static void 12877ctl_datamove_remote_write(union ctl_io *io) 12878{ 12879 int retval; 12880 void (*fe_datamove)(union ctl_io *io); 12881 12882 /* 12883 * - Get the data from the host/HBA into local memory. 12884 * - DMA memory from the local controller to the remote controller. 12885 * - Send status back to the remote controller. 12886 */ 12887 12888 retval = ctl_datamove_remote_sgl_setup(io); 12889 if (retval != 0) 12890 return; 12891 12892 /* Switch the pointer over so the FETD knows what to do */ 12893 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12894 12895 /* 12896 * Use a custom move done callback, since we need to send completion 12897 * back to the other controller, not to the backend on this side. 12898 */ 12899 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12900 12901 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12902 12903 fe_datamove(io); 12904 12905 return; 12906 12907} 12908 12909static int 12910ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12911{ 12912#if 0 12913 char str[256]; 12914 char path_str[64]; 12915 struct sbuf sb; 12916#endif 12917 12918 /* 12919 * In this case, we had to malloc the memory locally. Free it. 12920 */ 12921 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12922 int i; 12923 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12924 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12925 } 12926 12927#if 0 12928 scsi_path_string(io, path_str, sizeof(path_str)); 12929 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12930 sbuf_cat(&sb, path_str); 12931 scsi_command_string(&io->scsiio, NULL, &sb); 12932 sbuf_printf(&sb, "\n"); 12933 sbuf_cat(&sb, path_str); 12934 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12935 io->scsiio.tag_num, io->scsiio.tag_type); 12936 sbuf_cat(&sb, path_str); 12937 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12938 io->io_hdr.flags, io->io_hdr.status); 12939 sbuf_finish(&sb); 12940 printk("%s", sbuf_data(&sb)); 12941#endif 12942 12943 12944 /* 12945 * The read is done, now we need to send status (good or bad) back 12946 * to the other side. 12947 */ 12948 ctl_send_datamove_done(io, /*have_lock*/ 0); 12949 12950 return (0); 12951} 12952 12953static void 12954ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12955{ 12956 union ctl_io *io; 12957 void (*fe_datamove)(union ctl_io *io); 12958 12959 io = rq->context; 12960 12961 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12962 printf("%s: ISC DMA read failed with error %d", __func__, 12963 rq->ret); 12964 ctl_set_internal_failure(&io->scsiio, 12965 /*sks_valid*/ 1, 12966 /*retry_count*/ rq->ret); 12967 } 12968 12969 ctl_dt_req_free(rq); 12970 12971 /* Switch the pointer over so the FETD knows what to do */ 12972 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12973 12974 /* 12975 * Use a custom move done callback, since we need to send completion 12976 * back to the other controller, not to the backend on this side. 12977 */ 12978 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12979 12980 /* XXX KDM add checks like the ones in ctl_datamove? */ 12981 12982 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12983 12984 fe_datamove(io); 12985} 12986 12987static int 12988ctl_datamove_remote_sgl_setup(union ctl_io *io) 12989{ 12990 struct ctl_sg_entry *local_sglist, *remote_sglist; 12991 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12992 struct ctl_softc *softc; 12993 int retval; 12994 int i; 12995 12996 retval = 0; 12997 softc = control_softc; 12998 12999 local_sglist = io->io_hdr.local_sglist; 13000 local_dma_sglist = io->io_hdr.local_dma_sglist; 13001 remote_sglist = io->io_hdr.remote_sglist; 13002 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13003 13004 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13005 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13006 local_sglist[i].len = remote_sglist[i].len; 13007 13008 /* 13009 * XXX Detect the situation where the RS-level I/O 13010 * redirector on the other side has already read the 13011 * data off of the AOR RS on this side, and 13012 * transferred it to remote (mirror) memory on the 13013 * other side. Since we already have the data in 13014 * memory here, we just need to use it. 13015 * 13016 * XXX KDM this can probably be removed once we 13017 * get the cache device code in and take the 13018 * current AOR implementation out. 13019 */ 13020#ifdef NEEDTOPORT 13021 if ((remote_sglist[i].addr >= 13022 (void *)vtophys(softc->mirr->addr)) 13023 && (remote_sglist[i].addr < 13024 ((void *)vtophys(softc->mirr->addr) + 13025 CacheMirrorOffset))) { 13026 local_sglist[i].addr = remote_sglist[i].addr - 13027 CacheMirrorOffset; 13028 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13029 CTL_FLAG_DATA_IN) 13030 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13031 } else { 13032 local_sglist[i].addr = remote_sglist[i].addr + 13033 CacheMirrorOffset; 13034 } 13035#endif 13036#if 0 13037 printf("%s: local %p, remote %p, len %d\n", 13038 __func__, local_sglist[i].addr, 13039 remote_sglist[i].addr, local_sglist[i].len); 13040#endif 13041 } 13042 } else { 13043 uint32_t len_to_go; 13044 13045 /* 13046 * In this case, we don't have automatically allocated 13047 * memory for this I/O on this controller. This typically 13048 * happens with internal CTL I/O -- e.g. inquiry, mode 13049 * sense, etc. Anything coming from RAIDCore will have 13050 * a mirror area available. 13051 */ 13052 len_to_go = io->scsiio.kern_data_len; 13053 13054 /* 13055 * Clear the no datasync flag, we have to use malloced 13056 * buffers. 13057 */ 13058 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13059 13060 /* 13061 * The difficult thing here is that the size of the various 13062 * S/G segments may be different than the size from the 13063 * remote controller. That'll make it harder when DMAing 13064 * the data back to the other side. 13065 */ 13066 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13067 sizeof(io->io_hdr.remote_sglist[0])) && 13068 (len_to_go > 0); i++) { 13069 local_sglist[i].len = ctl_min(len_to_go, 131072); 13070 CTL_SIZE_8B(local_dma_sglist[i].len, 13071 local_sglist[i].len); 13072 local_sglist[i].addr = 13073 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13074 13075 local_dma_sglist[i].addr = local_sglist[i].addr; 13076 13077 if (local_sglist[i].addr == NULL) { 13078 int j; 13079 13080 printf("malloc failed for %zd bytes!", 13081 local_dma_sglist[i].len); 13082 for (j = 0; j < i; j++) { 13083 free(local_sglist[j].addr, M_CTL); 13084 } 13085 ctl_set_internal_failure(&io->scsiio, 13086 /*sks_valid*/ 1, 13087 /*retry_count*/ 4857); 13088 retval = 1; 13089 goto bailout_error; 13090 13091 } 13092 /* XXX KDM do we need a sync here? */ 13093 13094 len_to_go -= local_sglist[i].len; 13095 } 13096 /* 13097 * Reset the number of S/G entries accordingly. The 13098 * original number of S/G entries is available in 13099 * rem_sg_entries. 13100 */ 13101 io->scsiio.kern_sg_entries = i; 13102 13103#if 0 13104 printf("%s: kern_sg_entries = %d\n", __func__, 13105 io->scsiio.kern_sg_entries); 13106 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13107 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13108 local_sglist[i].addr, local_sglist[i].len, 13109 local_dma_sglist[i].len); 13110#endif 13111 } 13112 13113 13114 return (retval); 13115 13116bailout_error: 13117 13118 ctl_send_datamove_done(io, /*have_lock*/ 0); 13119 13120 return (retval); 13121} 13122 13123static int 13124ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13125 ctl_ha_dt_cb callback) 13126{ 13127 struct ctl_ha_dt_req *rq; 13128 struct ctl_sg_entry *remote_sglist, *local_sglist; 13129 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13130 uint32_t local_used, remote_used, total_used; 13131 int retval; 13132 int i, j; 13133 13134 retval = 0; 13135 13136 rq = ctl_dt_req_alloc(); 13137 13138 /* 13139 * If we failed to allocate the request, and if the DMA didn't fail 13140 * anyway, set busy status. This is just a resource allocation 13141 * failure. 13142 */ 13143 if ((rq == NULL) 13144 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13145 ctl_set_busy(&io->scsiio); 13146 13147 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13148 13149 if (rq != NULL) 13150 ctl_dt_req_free(rq); 13151 13152 /* 13153 * The data move failed. We need to return status back 13154 * to the other controller. No point in trying to DMA 13155 * data to the remote controller. 13156 */ 13157 13158 ctl_send_datamove_done(io, /*have_lock*/ 0); 13159 13160 retval = 1; 13161 13162 goto bailout; 13163 } 13164 13165 local_sglist = io->io_hdr.local_sglist; 13166 local_dma_sglist = io->io_hdr.local_dma_sglist; 13167 remote_sglist = io->io_hdr.remote_sglist; 13168 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13169 local_used = 0; 13170 remote_used = 0; 13171 total_used = 0; 13172 13173 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13174 rq->ret = CTL_HA_STATUS_SUCCESS; 13175 rq->context = io; 13176 callback(rq); 13177 goto bailout; 13178 } 13179 13180 /* 13181 * Pull/push the data over the wire from/to the other controller. 13182 * This takes into account the possibility that the local and 13183 * remote sglists may not be identical in terms of the size of 13184 * the elements and the number of elements. 13185 * 13186 * One fundamental assumption here is that the length allocated for 13187 * both the local and remote sglists is identical. Otherwise, we've 13188 * essentially got a coding error of some sort. 13189 */ 13190 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13191 int isc_ret; 13192 uint32_t cur_len, dma_length; 13193 uint8_t *tmp_ptr; 13194 13195 rq->id = CTL_HA_DATA_CTL; 13196 rq->command = command; 13197 rq->context = io; 13198 13199 /* 13200 * Both pointers should be aligned. But it is possible 13201 * that the allocation length is not. They should both 13202 * also have enough slack left over at the end, though, 13203 * to round up to the next 8 byte boundary. 13204 */ 13205 cur_len = ctl_min(local_sglist[i].len - local_used, 13206 remote_sglist[j].len - remote_used); 13207 13208 /* 13209 * In this case, we have a size issue and need to decrease 13210 * the size, except in the case where we actually have less 13211 * than 8 bytes left. In that case, we need to increase 13212 * the DMA length to get the last bit. 13213 */ 13214 if ((cur_len & 0x7) != 0) { 13215 if (cur_len > 0x7) { 13216 cur_len = cur_len - (cur_len & 0x7); 13217 dma_length = cur_len; 13218 } else { 13219 CTL_SIZE_8B(dma_length, cur_len); 13220 } 13221 13222 } else 13223 dma_length = cur_len; 13224 13225 /* 13226 * If we had to allocate memory for this I/O, instead of using 13227 * the non-cached mirror memory, we'll need to flush the cache 13228 * before trying to DMA to the other controller. 13229 * 13230 * We could end up doing this multiple times for the same 13231 * segment if we have a larger local segment than remote 13232 * segment. That shouldn't be an issue. 13233 */ 13234 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13235 /* 13236 * XXX KDM use bus_dmamap_sync() here. 13237 */ 13238 } 13239 13240 rq->size = dma_length; 13241 13242 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13243 tmp_ptr += local_used; 13244 13245 /* Use physical addresses when talking to ISC hardware */ 13246 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13247 /* XXX KDM use busdma */ 13248#if 0 13249 rq->local = vtophys(tmp_ptr); 13250#endif 13251 } else 13252 rq->local = tmp_ptr; 13253 13254 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13255 tmp_ptr += remote_used; 13256 rq->remote = tmp_ptr; 13257 13258 rq->callback = NULL; 13259 13260 local_used += cur_len; 13261 if (local_used >= local_sglist[i].len) { 13262 i++; 13263 local_used = 0; 13264 } 13265 13266 remote_used += cur_len; 13267 if (remote_used >= remote_sglist[j].len) { 13268 j++; 13269 remote_used = 0; 13270 } 13271 total_used += cur_len; 13272 13273 if (total_used >= io->scsiio.kern_data_len) 13274 rq->callback = callback; 13275 13276 if ((rq->size & 0x7) != 0) { 13277 printf("%s: warning: size %d is not on 8b boundary\n", 13278 __func__, rq->size); 13279 } 13280 if (((uintptr_t)rq->local & 0x7) != 0) { 13281 printf("%s: warning: local %p not on 8b boundary\n", 13282 __func__, rq->local); 13283 } 13284 if (((uintptr_t)rq->remote & 0x7) != 0) { 13285 printf("%s: warning: remote %p not on 8b boundary\n", 13286 __func__, rq->local); 13287 } 13288#if 0 13289 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13290 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13291 rq->local, rq->remote, rq->size); 13292#endif 13293 13294 isc_ret = ctl_dt_single(rq); 13295 if (isc_ret == CTL_HA_STATUS_WAIT) 13296 continue; 13297 13298 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13299 rq->ret = CTL_HA_STATUS_SUCCESS; 13300 } else { 13301 rq->ret = isc_ret; 13302 } 13303 callback(rq); 13304 goto bailout; 13305 } 13306 13307bailout: 13308 return (retval); 13309 13310} 13311 13312static void 13313ctl_datamove_remote_read(union ctl_io *io) 13314{ 13315 int retval; 13316 int i; 13317 13318 /* 13319 * This will send an error to the other controller in the case of a 13320 * failure. 13321 */ 13322 retval = ctl_datamove_remote_sgl_setup(io); 13323 if (retval != 0) 13324 return; 13325 13326 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13327 ctl_datamove_remote_read_cb); 13328 if ((retval != 0) 13329 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13330 /* 13331 * Make sure we free memory if there was an error.. The 13332 * ctl_datamove_remote_xfer() function will send the 13333 * datamove done message, or call the callback with an 13334 * error if there is a problem. 13335 */ 13336 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13337 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13338 } 13339 13340 return; 13341} 13342 13343/* 13344 * Process a datamove request from the other controller. This is used for 13345 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13346 * first. Once that is complete, the data gets DMAed into the remote 13347 * controller's memory. For reads, we DMA from the remote controller's 13348 * memory into our memory first, and then move it out to the FETD. 13349 */ 13350static void 13351ctl_datamove_remote(union ctl_io *io) 13352{ 13353 struct ctl_softc *softc; 13354 13355 softc = control_softc; 13356 13357 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13358 13359 /* 13360 * Note that we look for an aborted I/O here, but don't do some of 13361 * the other checks that ctl_datamove() normally does. 13362 * We don't need to run the datamove delay code, since that should 13363 * have been done if need be on the other controller. 13364 */ 13365 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13366 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13367 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13368 io->io_hdr.nexus.targ_port, 13369 io->io_hdr.nexus.targ_target.id, 13370 io->io_hdr.nexus.targ_lun); 13371 io->io_hdr.port_status = 31338; 13372 ctl_send_datamove_done(io, /*have_lock*/ 0); 13373 return; 13374 } 13375 13376 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13377 ctl_datamove_remote_write(io); 13378 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13379 ctl_datamove_remote_read(io); 13380 } else { 13381 union ctl_ha_msg msg; 13382 struct scsi_sense_data *sense; 13383 uint8_t sks[3]; 13384 int retry_count; 13385 13386 memset(&msg, 0, sizeof(msg)); 13387 13388 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13389 msg.hdr.status = CTL_SCSI_ERROR; 13390 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13391 13392 retry_count = 4243; 13393 13394 sense = &msg.scsi.sense_data; 13395 sks[0] = SSD_SCS_VALID; 13396 sks[1] = (retry_count >> 8) & 0xff; 13397 sks[2] = retry_count & 0xff; 13398 13399 /* "Internal target failure" */ 13400 scsi_set_sense_data(sense, 13401 /*sense_format*/ SSD_TYPE_NONE, 13402 /*current_error*/ 1, 13403 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13404 /*asc*/ 0x44, 13405 /*ascq*/ 0x00, 13406 /*type*/ SSD_ELEM_SKS, 13407 /*size*/ sizeof(sks), 13408 /*data*/ sks, 13409 SSD_ELEM_NONE); 13410 13411 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13412 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13413 ctl_failover_io(io, /*have_lock*/ 1); 13414 return; 13415 } 13416 13417 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13418 CTL_HA_STATUS_SUCCESS) { 13419 /* XXX KDM what to do if this fails? */ 13420 } 13421 return; 13422 } 13423 13424} 13425 13426static int 13427ctl_process_done(union ctl_io *io) 13428{ 13429 struct ctl_lun *lun; 13430 struct ctl_softc *ctl_softc; 13431 void (*fe_done)(union ctl_io *io); 13432 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13433 13434 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13435 13436 fe_done = 13437 control_softc->ctl_ports[targ_port]->fe_done; 13438 13439#ifdef CTL_TIME_IO 13440 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13441 char str[256]; 13442 char path_str[64]; 13443 struct sbuf sb; 13444 13445 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13446 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13447 13448 sbuf_cat(&sb, path_str); 13449 switch (io->io_hdr.io_type) { 13450 case CTL_IO_SCSI: 13451 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13452 sbuf_printf(&sb, "\n"); 13453 sbuf_cat(&sb, path_str); 13454 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13455 io->scsiio.tag_num, io->scsiio.tag_type); 13456 break; 13457 case CTL_IO_TASK: 13458 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13459 "Tag Type: %d\n", io->taskio.task_action, 13460 io->taskio.tag_num, io->taskio.tag_type); 13461 break; 13462 default: 13463 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13464 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13465 break; 13466 } 13467 sbuf_cat(&sb, path_str); 13468 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13469 (intmax_t)time_uptime - io->io_hdr.start_time); 13470 sbuf_finish(&sb); 13471 printf("%s", sbuf_data(&sb)); 13472 } 13473#endif /* CTL_TIME_IO */ 13474 13475 switch (io->io_hdr.io_type) { 13476 case CTL_IO_SCSI: 13477 break; 13478 case CTL_IO_TASK: 13479 if (bootverbose || verbose > 0) 13480 ctl_io_error_print(io, NULL); 13481 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13482 ctl_free_io(io); 13483 else 13484 fe_done(io); 13485 return (CTL_RETVAL_COMPLETE); 13486 break; 13487 default: 13488 printf("ctl_process_done: invalid io type %d\n", 13489 io->io_hdr.io_type); 13490 panic("ctl_process_done: invalid io type %d\n", 13491 io->io_hdr.io_type); 13492 break; /* NOTREACHED */ 13493 } 13494 13495 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13496 if (lun == NULL) { 13497 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13498 io->io_hdr.nexus.targ_mapped_lun)); 13499 fe_done(io); 13500 goto bailout; 13501 } 13502 ctl_softc = lun->ctl_softc; 13503 13504 mtx_lock(&lun->lun_lock); 13505 13506 /* 13507 * Check to see if we have any errors to inject here. We only 13508 * inject errors for commands that don't already have errors set. 13509 */ 13510 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13511 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13512 ctl_inject_error(lun, io); 13513 13514 /* 13515 * XXX KDM how do we treat commands that aren't completed 13516 * successfully? 13517 * 13518 * XXX KDM should we also track I/O latency? 13519 */ 13520 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13521 io->io_hdr.io_type == CTL_IO_SCSI) { 13522#ifdef CTL_TIME_IO 13523 struct bintime cur_bt; 13524#endif 13525 int type; 13526 13527 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13528 CTL_FLAG_DATA_IN) 13529 type = CTL_STATS_READ; 13530 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13531 CTL_FLAG_DATA_OUT) 13532 type = CTL_STATS_WRITE; 13533 else 13534 type = CTL_STATS_NO_IO; 13535 13536 lun->stats.ports[targ_port].bytes[type] += 13537 io->scsiio.kern_total_len; 13538 lun->stats.ports[targ_port].operations[type]++; 13539#ifdef CTL_TIME_IO 13540 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13541 &io->io_hdr.dma_bt); 13542 lun->stats.ports[targ_port].num_dmas[type] += 13543 io->io_hdr.num_dmas; 13544 getbintime(&cur_bt); 13545 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13546 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13547#endif 13548 } 13549 13550 /* 13551 * Remove this from the OOA queue. 13552 */ 13553 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13554 13555 /* 13556 * Run through the blocked queue on this LUN and see if anything 13557 * has become unblocked, now that this transaction is done. 13558 */ 13559 ctl_check_blocked(lun); 13560 13561 /* 13562 * If the LUN has been invalidated, free it if there is nothing 13563 * left on its OOA queue. 13564 */ 13565 if ((lun->flags & CTL_LUN_INVALID) 13566 && TAILQ_EMPTY(&lun->ooa_queue)) { 13567 mtx_unlock(&lun->lun_lock); 13568 mtx_lock(&ctl_softc->ctl_lock); 13569 ctl_free_lun(lun); 13570 mtx_unlock(&ctl_softc->ctl_lock); 13571 } else 13572 mtx_unlock(&lun->lun_lock); 13573 13574 /* 13575 * If this command has been aborted, make sure we set the status 13576 * properly. The FETD is responsible for freeing the I/O and doing 13577 * whatever it needs to do to clean up its state. 13578 */ 13579 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13580 ctl_set_task_aborted(&io->scsiio); 13581 13582 /* 13583 * We print out status for every task management command. For SCSI 13584 * commands, we filter out any unit attention errors; they happen 13585 * on every boot, and would clutter up the log. Note: task 13586 * management commands aren't printed here, they are printed above, 13587 * since they should never even make it down here. 13588 */ 13589 switch (io->io_hdr.io_type) { 13590 case CTL_IO_SCSI: { 13591 int error_code, sense_key, asc, ascq; 13592 13593 sense_key = 0; 13594 13595 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13596 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13597 /* 13598 * Since this is just for printing, no need to 13599 * show errors here. 13600 */ 13601 scsi_extract_sense_len(&io->scsiio.sense_data, 13602 io->scsiio.sense_len, 13603 &error_code, 13604 &sense_key, 13605 &asc, 13606 &ascq, 13607 /*show_errors*/ 0); 13608 } 13609 13610 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13611 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13612 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13613 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13614 13615 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13616 ctl_softc->skipped_prints++; 13617 } else { 13618 uint32_t skipped_prints; 13619 13620 skipped_prints = ctl_softc->skipped_prints; 13621 13622 ctl_softc->skipped_prints = 0; 13623 ctl_softc->last_print_jiffies = time_uptime; 13624 13625 if (skipped_prints > 0) { 13626#ifdef NEEDTOPORT 13627 csevent_log(CSC_CTL | CSC_SHELF_SW | 13628 CTL_ERROR_REPORT, 13629 csevent_LogType_Trace, 13630 csevent_Severity_Information, 13631 csevent_AlertLevel_Green, 13632 csevent_FRU_Firmware, 13633 csevent_FRU_Unknown, 13634 "High CTL error volume, %d prints " 13635 "skipped", skipped_prints); 13636#endif 13637 } 13638 if (bootverbose || verbose > 0) 13639 ctl_io_error_print(io, NULL); 13640 } 13641 } 13642 break; 13643 } 13644 case CTL_IO_TASK: 13645 if (bootverbose || verbose > 0) 13646 ctl_io_error_print(io, NULL); 13647 break; 13648 default: 13649 break; 13650 } 13651 13652 /* 13653 * Tell the FETD or the other shelf controller we're done with this 13654 * command. Note that only SCSI commands get to this point. Task 13655 * management commands are completed above. 13656 * 13657 * We only send status to the other controller if we're in XFER 13658 * mode. In SER_ONLY mode, the I/O is done on the controller that 13659 * received the I/O (from CTL's perspective), and so the status is 13660 * generated there. 13661 * 13662 * XXX KDM if we hold the lock here, we could cause a deadlock 13663 * if the frontend comes back in in this context to queue 13664 * something. 13665 */ 13666 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13667 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13668 union ctl_ha_msg msg; 13669 13670 memset(&msg, 0, sizeof(msg)); 13671 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13672 msg.hdr.original_sc = io->io_hdr.original_sc; 13673 msg.hdr.nexus = io->io_hdr.nexus; 13674 msg.hdr.status = io->io_hdr.status; 13675 msg.scsi.scsi_status = io->scsiio.scsi_status; 13676 msg.scsi.tag_num = io->scsiio.tag_num; 13677 msg.scsi.tag_type = io->scsiio.tag_type; 13678 msg.scsi.sense_len = io->scsiio.sense_len; 13679 msg.scsi.sense_residual = io->scsiio.sense_residual; 13680 msg.scsi.residual = io->scsiio.residual; 13681 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13682 sizeof(io->scsiio.sense_data)); 13683 /* 13684 * We copy this whether or not this is an I/O-related 13685 * command. Otherwise, we'd have to go and check to see 13686 * whether it's a read/write command, and it really isn't 13687 * worth it. 13688 */ 13689 memcpy(&msg.scsi.lbalen, 13690 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13691 sizeof(msg.scsi.lbalen)); 13692 13693 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13694 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13695 /* XXX do something here */ 13696 } 13697 13698 ctl_free_io(io); 13699 } else 13700 fe_done(io); 13701 13702bailout: 13703 13704 return (CTL_RETVAL_COMPLETE); 13705} 13706 13707#ifdef CTL_WITH_CA 13708/* 13709 * Front end should call this if it doesn't do autosense. When the request 13710 * sense comes back in from the initiator, we'll dequeue this and send it. 13711 */ 13712int 13713ctl_queue_sense(union ctl_io *io) 13714{ 13715 struct ctl_lun *lun; 13716 struct ctl_softc *ctl_softc; 13717 uint32_t initidx, targ_lun; 13718 13719 ctl_softc = control_softc; 13720 13721 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13722 13723 /* 13724 * LUN lookup will likely move to the ctl_work_thread() once we 13725 * have our new queueing infrastructure (that doesn't put things on 13726 * a per-LUN queue initially). That is so that we can handle 13727 * things like an INQUIRY to a LUN that we don't have enabled. We 13728 * can't deal with that right now. 13729 */ 13730 mtx_lock(&ctl_softc->ctl_lock); 13731 13732 /* 13733 * If we don't have a LUN for this, just toss the sense 13734 * information. 13735 */ 13736 targ_lun = io->io_hdr.nexus.targ_lun; 13737 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13738 if ((targ_lun < CTL_MAX_LUNS) 13739 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13740 lun = ctl_softc->ctl_luns[targ_lun]; 13741 else 13742 goto bailout; 13743 13744 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13745 13746 mtx_lock(&lun->lun_lock); 13747 /* 13748 * Already have CA set for this LUN...toss the sense information. 13749 */ 13750 if (ctl_is_set(lun->have_ca, initidx)) { 13751 mtx_unlock(&lun->lun_lock); 13752 goto bailout; 13753 } 13754 13755 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13756 ctl_min(sizeof(lun->pending_sense[initidx]), 13757 sizeof(io->scsiio.sense_data))); 13758 ctl_set_mask(lun->have_ca, initidx); 13759 mtx_unlock(&lun->lun_lock); 13760 13761bailout: 13762 mtx_unlock(&ctl_softc->ctl_lock); 13763 13764 ctl_free_io(io); 13765 13766 return (CTL_RETVAL_COMPLETE); 13767} 13768#endif 13769 13770/* 13771 * Primary command inlet from frontend ports. All SCSI and task I/O 13772 * requests must go through this function. 13773 */ 13774int 13775ctl_queue(union ctl_io *io) 13776{ 13777 struct ctl_softc *ctl_softc; 13778 13779 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13780 13781 ctl_softc = control_softc; 13782 13783#ifdef CTL_TIME_IO 13784 io->io_hdr.start_time = time_uptime; 13785 getbintime(&io->io_hdr.start_bt); 13786#endif /* CTL_TIME_IO */ 13787 13788 /* Map FE-specific LUN ID into global one. */ 13789 io->io_hdr.nexus.targ_mapped_lun = 13790 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13791 13792 switch (io->io_hdr.io_type) { 13793 case CTL_IO_SCSI: 13794 case CTL_IO_TASK: 13795 ctl_enqueue_incoming(io); 13796 break; 13797 default: 13798 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13799 return (EINVAL); 13800 } 13801 13802 return (CTL_RETVAL_COMPLETE); 13803} 13804 13805#ifdef CTL_IO_DELAY 13806static void 13807ctl_done_timer_wakeup(void *arg) 13808{ 13809 union ctl_io *io; 13810 13811 io = (union ctl_io *)arg; 13812 ctl_done(io); 13813} 13814#endif /* CTL_IO_DELAY */ 13815 13816void 13817ctl_done(union ctl_io *io) 13818{ 13819 struct ctl_softc *ctl_softc; 13820 13821 ctl_softc = control_softc; 13822 13823 /* 13824 * Enable this to catch duplicate completion issues. 13825 */ 13826#if 0 13827 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13828 printf("%s: type %d msg %d cdb %x iptl: " 13829 "%d:%d:%d:%d tag 0x%04x " 13830 "flag %#x status %x\n", 13831 __func__, 13832 io->io_hdr.io_type, 13833 io->io_hdr.msg_type, 13834 io->scsiio.cdb[0], 13835 io->io_hdr.nexus.initid.id, 13836 io->io_hdr.nexus.targ_port, 13837 io->io_hdr.nexus.targ_target.id, 13838 io->io_hdr.nexus.targ_lun, 13839 (io->io_hdr.io_type == 13840 CTL_IO_TASK) ? 13841 io->taskio.tag_num : 13842 io->scsiio.tag_num, 13843 io->io_hdr.flags, 13844 io->io_hdr.status); 13845 } else 13846 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13847#endif 13848 13849 /* 13850 * This is an internal copy of an I/O, and should not go through 13851 * the normal done processing logic. 13852 */ 13853 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13854 return; 13855 13856 /* 13857 * We need to send a msg to the serializing shelf to finish the IO 13858 * as well. We don't send a finish message to the other shelf if 13859 * this is a task management command. Task management commands 13860 * aren't serialized in the OOA queue, but rather just executed on 13861 * both shelf controllers for commands that originated on that 13862 * controller. 13863 */ 13864 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13865 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13866 union ctl_ha_msg msg_io; 13867 13868 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13869 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13870 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13871 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13872 } 13873 /* continue on to finish IO */ 13874 } 13875#ifdef CTL_IO_DELAY 13876 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13877 struct ctl_lun *lun; 13878 13879 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13880 13881 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13882 } else { 13883 struct ctl_lun *lun; 13884 13885 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13886 13887 if ((lun != NULL) 13888 && (lun->delay_info.done_delay > 0)) { 13889 struct callout *callout; 13890 13891 callout = (struct callout *)&io->io_hdr.timer_bytes; 13892 callout_init(callout, /*mpsafe*/ 1); 13893 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13894 callout_reset(callout, 13895 lun->delay_info.done_delay * hz, 13896 ctl_done_timer_wakeup, io); 13897 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13898 lun->delay_info.done_delay = 0; 13899 return; 13900 } 13901 } 13902#endif /* CTL_IO_DELAY */ 13903 13904 ctl_enqueue_done(io); 13905} 13906 13907int 13908ctl_isc(struct ctl_scsiio *ctsio) 13909{ 13910 struct ctl_lun *lun; 13911 int retval; 13912 13913 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13914 13915 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13916 13917 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13918 13919 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13920 13921 return (retval); 13922} 13923 13924 13925static void 13926ctl_work_thread(void *arg) 13927{ 13928 struct ctl_thread *thr = (struct ctl_thread *)arg; 13929 struct ctl_softc *softc = thr->ctl_softc; 13930 union ctl_io *io; 13931 int retval; 13932 13933 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13934 13935 for (;;) { 13936 retval = 0; 13937 13938 /* 13939 * We handle the queues in this order: 13940 * - ISC 13941 * - done queue (to free up resources, unblock other commands) 13942 * - RtR queue 13943 * - incoming queue 13944 * 13945 * If those queues are empty, we break out of the loop and 13946 * go to sleep. 13947 */ 13948 mtx_lock(&thr->queue_lock); 13949 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13950 if (io != NULL) { 13951 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13952 mtx_unlock(&thr->queue_lock); 13953 ctl_handle_isc(io); 13954 continue; 13955 } 13956 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13957 if (io != NULL) { 13958 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13959 /* clear any blocked commands, call fe_done */ 13960 mtx_unlock(&thr->queue_lock); 13961 retval = ctl_process_done(io); 13962 continue; 13963 } 13964 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13965 if (io != NULL) { 13966 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13967 mtx_unlock(&thr->queue_lock); 13968 if (io->io_hdr.io_type == CTL_IO_TASK) 13969 ctl_run_task(io); 13970 else 13971 ctl_scsiio_precheck(softc, &io->scsiio); 13972 continue; 13973 } 13974 if (!ctl_pause_rtr) { 13975 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13976 if (io != NULL) { 13977 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13978 mtx_unlock(&thr->queue_lock); 13979 retval = ctl_scsiio(&io->scsiio); 13980 if (retval != CTL_RETVAL_COMPLETE) 13981 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13982 continue; 13983 } 13984 } 13985 13986 /* Sleep until we have something to do. */ 13987 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13988 } 13989} 13990 13991static void 13992ctl_lun_thread(void *arg) 13993{ 13994 struct ctl_softc *softc = (struct ctl_softc *)arg; 13995 struct ctl_be_lun *be_lun; 13996 int retval; 13997 13998 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13999 14000 for (;;) { 14001 retval = 0; 14002 mtx_lock(&softc->ctl_lock); 14003 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14004 if (be_lun != NULL) { 14005 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14006 mtx_unlock(&softc->ctl_lock); 14007 ctl_create_lun(be_lun); 14008 continue; 14009 } 14010 14011 /* Sleep until we have something to do. */ 14012 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14013 PDROP | PRIBIO, "-", 0); 14014 } 14015} 14016 14017static void 14018ctl_enqueue_incoming(union ctl_io *io) 14019{ 14020 struct ctl_softc *softc = control_softc; 14021 struct ctl_thread *thr; 14022 u_int idx; 14023 14024 idx = (io->io_hdr.nexus.targ_port * 127 + 14025 io->io_hdr.nexus.initid.id) % worker_threads; 14026 thr = &softc->threads[idx]; 14027 mtx_lock(&thr->queue_lock); 14028 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14029 mtx_unlock(&thr->queue_lock); 14030 wakeup(thr); 14031} 14032 14033static void 14034ctl_enqueue_rtr(union ctl_io *io) 14035{ 14036 struct ctl_softc *softc = control_softc; 14037 struct ctl_thread *thr; 14038 14039 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14040 mtx_lock(&thr->queue_lock); 14041 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14042 mtx_unlock(&thr->queue_lock); 14043 wakeup(thr); 14044} 14045 14046static void 14047ctl_enqueue_done(union ctl_io *io) 14048{ 14049 struct ctl_softc *softc = control_softc; 14050 struct ctl_thread *thr; 14051 14052 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14053 mtx_lock(&thr->queue_lock); 14054 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14055 mtx_unlock(&thr->queue_lock); 14056 wakeup(thr); 14057} 14058 14059static void 14060ctl_enqueue_isc(union ctl_io *io) 14061{ 14062 struct ctl_softc *softc = control_softc; 14063 struct ctl_thread *thr; 14064 14065 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14066 mtx_lock(&thr->queue_lock); 14067 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14068 mtx_unlock(&thr->queue_lock); 14069 wakeup(thr); 14070} 14071 14072/* Initialization and failover */ 14073 14074void 14075ctl_init_isc_msg(void) 14076{ 14077 printf("CTL: Still calling this thing\n"); 14078} 14079 14080/* 14081 * Init component 14082 * Initializes component into configuration defined by bootMode 14083 * (see hasc-sv.c) 14084 * returns hasc_Status: 14085 * OK 14086 * ERROR - fatal error 14087 */ 14088static ctl_ha_comp_status 14089ctl_isc_init(struct ctl_ha_component *c) 14090{ 14091 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14092 14093 c->status = ret; 14094 return ret; 14095} 14096 14097/* Start component 14098 * Starts component in state requested. If component starts successfully, 14099 * it must set its own state to the requestrd state 14100 * When requested state is HASC_STATE_HA, the component may refine it 14101 * by adding _SLAVE or _MASTER flags. 14102 * Currently allowed state transitions are: 14103 * UNKNOWN->HA - initial startup 14104 * UNKNOWN->SINGLE - initial startup when no parter detected 14105 * HA->SINGLE - failover 14106 * returns ctl_ha_comp_status: 14107 * OK - component successfully started in requested state 14108 * FAILED - could not start the requested state, failover may 14109 * be possible 14110 * ERROR - fatal error detected, no future startup possible 14111 */ 14112static ctl_ha_comp_status 14113ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14114{ 14115 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14116 14117 printf("%s: go\n", __func__); 14118 14119 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14120 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14121 ctl_is_single = 0; 14122 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14123 != CTL_HA_STATUS_SUCCESS) { 14124 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14125 ret = CTL_HA_COMP_STATUS_ERROR; 14126 } 14127 } else if (CTL_HA_STATE_IS_HA(c->state) 14128 && CTL_HA_STATE_IS_SINGLE(state)){ 14129 // HA->SINGLE transition 14130 ctl_failover(); 14131 ctl_is_single = 1; 14132 } else { 14133 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14134 c->state, state); 14135 ret = CTL_HA_COMP_STATUS_ERROR; 14136 } 14137 if (CTL_HA_STATE_IS_SINGLE(state)) 14138 ctl_is_single = 1; 14139 14140 c->state = state; 14141 c->status = ret; 14142 return ret; 14143} 14144 14145/* 14146 * Quiesce component 14147 * The component must clear any error conditions (set status to OK) and 14148 * prepare itself to another Start call 14149 * returns ctl_ha_comp_status: 14150 * OK 14151 * ERROR 14152 */ 14153static ctl_ha_comp_status 14154ctl_isc_quiesce(struct ctl_ha_component *c) 14155{ 14156 int ret = CTL_HA_COMP_STATUS_OK; 14157 14158 ctl_pause_rtr = 1; 14159 c->status = ret; 14160 return ret; 14161} 14162 14163struct ctl_ha_component ctl_ha_component_ctlisc = 14164{ 14165 .name = "CTL ISC", 14166 .state = CTL_HA_STATE_UNKNOWN, 14167 .init = ctl_isc_init, 14168 .start = ctl_isc_start, 14169 .quiesce = ctl_isc_quiesce 14170}; 14171 14172/* 14173 * vim: ts=8 14174 */ 14175