ctl.c revision 268204
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: head/sys/cam/ctl/ctl.c 268204 2014-07-03 04:26:53Z 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 /*reserved*/0, 286 /*aen_holdoff_period*/{0, 0} 287}; 288 289static struct scsi_control_page control_page_changeable = { 290 /*page_code*/SMS_CONTROL_MODE_PAGE, 291 /*page_length*/sizeof(struct scsi_control_page) - 2, 292 /*rlec*/SCP_DSENSE, 293 /*queue_flags*/0, 294 /*eca_and_aen*/0, 295 /*reserved*/0, 296 /*aen_holdoff_period*/{0, 0} 297}; 298 299 300/* 301 * XXX KDM move these into the softc. 302 */ 303static int rcv_sync_msg; 304static int persis_offset; 305static uint8_t ctl_pause_rtr; 306static int ctl_is_single = 1; 307static int index_to_aps_page; 308 309SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 310static int worker_threads = -1; 311SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 312 &worker_threads, 1, "Number of worker threads"); 313static int verbose = 0; 314SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 315 &verbose, 0, "Show SCSI errors returned to initiator"); 316 317/* 318 * Serial number (0x80), device id (0x83), supported pages (0x00), 319 * Block limits (0xB0) and Logical Block Provisioning (0xB2) 320 */ 321#define SCSI_EVPD_NUM_SUPPORTED_PAGES 5 322 323static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 324 int param); 325static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 326static int ctl_init(void); 327void ctl_shutdown(void); 328static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 329static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 330static void ctl_ioctl_online(void *arg); 331static void ctl_ioctl_offline(void *arg); 332static int ctl_ioctl_targ_enable(void *arg, struct ctl_id targ_id); 333static int ctl_ioctl_targ_disable(void *arg, struct ctl_id targ_id); 334static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 335static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 336static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 337static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 338static int ctl_ioctl_submit_wait(union ctl_io *io); 339static void ctl_ioctl_datamove(union ctl_io *io); 340static void ctl_ioctl_done(union ctl_io *io); 341static void ctl_ioctl_hard_startstop_callback(void *arg, 342 struct cfi_metatask *metatask); 343static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 344static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 345 struct ctl_ooa *ooa_hdr, 346 struct ctl_ooa_entry *kern_entries); 347static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 348 struct thread *td); 349uint32_t ctl_get_resindex(struct ctl_nexus *nexus); 350uint32_t ctl_port_idx(int port_num); 351#ifdef unused 352static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 353 uint32_t targ_target, uint32_t targ_lun, 354 int can_wait); 355static void ctl_kfree_io(union ctl_io *io); 356#endif /* unused */ 357static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 358 struct ctl_be_lun *be_lun, struct ctl_id target_id); 359static int ctl_free_lun(struct ctl_lun *lun); 360static void ctl_create_lun(struct ctl_be_lun *be_lun); 361/** 362static void ctl_failover_change_pages(struct ctl_softc *softc, 363 struct ctl_scsiio *ctsio, int master); 364**/ 365 366static int ctl_do_mode_select(union ctl_io *io); 367static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 368 uint64_t res_key, uint64_t sa_res_key, 369 uint8_t type, uint32_t residx, 370 struct ctl_scsiio *ctsio, 371 struct scsi_per_res_out *cdb, 372 struct scsi_per_res_out_parms* param); 373static void ctl_pro_preempt_other(struct ctl_lun *lun, 374 union ctl_ha_msg *msg); 375static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 376static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 377static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 378static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 379static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 380 int alloc_len); 381static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 382static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 383static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 384static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 385static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 386static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 387 union ctl_io *ooa_io); 388static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 389 union ctl_io *starting_io); 390static int ctl_check_blocked(struct ctl_lun *lun); 391static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 392 struct ctl_lun *lun, 393 const struct ctl_cmd_entry *entry, 394 struct ctl_scsiio *ctsio); 395//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 396static void ctl_failover(void); 397static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 398 struct ctl_scsiio *ctsio); 399static int ctl_scsiio(struct ctl_scsiio *ctsio); 400 401static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 402static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 403 ctl_ua_type ua_type); 404static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 405 ctl_ua_type ua_type); 406static int ctl_abort_task(union ctl_io *io); 407static void ctl_run_task(union ctl_io *io); 408#ifdef CTL_IO_DELAY 409static void ctl_datamove_timer_wakeup(void *arg); 410static void ctl_done_timer_wakeup(void *arg); 411#endif /* CTL_IO_DELAY */ 412 413static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 414static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 415static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 416static void ctl_datamove_remote_write(union ctl_io *io); 417static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 418static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 419static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 420static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 421 ctl_ha_dt_cb callback); 422static void ctl_datamove_remote_read(union ctl_io *io); 423static void ctl_datamove_remote(union ctl_io *io); 424static int ctl_process_done(union ctl_io *io); 425static void ctl_lun_thread(void *arg); 426static void ctl_work_thread(void *arg); 427static void ctl_enqueue_incoming(union ctl_io *io); 428static void ctl_enqueue_rtr(union ctl_io *io); 429static void ctl_enqueue_done(union ctl_io *io); 430static void ctl_enqueue_isc(union ctl_io *io); 431static const struct ctl_cmd_entry * 432 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 433static const struct ctl_cmd_entry * 434 ctl_validate_command(struct ctl_scsiio *ctsio); 435static int ctl_cmd_applicable(uint8_t lun_type, 436 const struct ctl_cmd_entry *entry); 437 438/* 439 * Load the serialization table. This isn't very pretty, but is probably 440 * the easiest way to do it. 441 */ 442#include "ctl_ser_table.c" 443 444/* 445 * We only need to define open, close and ioctl routines for this driver. 446 */ 447static struct cdevsw ctl_cdevsw = { 448 .d_version = D_VERSION, 449 .d_flags = 0, 450 .d_open = ctl_open, 451 .d_close = ctl_close, 452 .d_ioctl = ctl_ioctl, 453 .d_name = "ctl", 454}; 455 456 457MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 458MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 459 460static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 461 462static moduledata_t ctl_moduledata = { 463 "ctl", 464 ctl_module_event_handler, 465 NULL 466}; 467 468DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 469MODULE_VERSION(ctl, 1); 470 471static void 472ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 473 union ctl_ha_msg *msg_info) 474{ 475 struct ctl_scsiio *ctsio; 476 477 if (msg_info->hdr.original_sc == NULL) { 478 printf("%s: original_sc == NULL!\n", __func__); 479 /* XXX KDM now what? */ 480 return; 481 } 482 483 ctsio = &msg_info->hdr.original_sc->scsiio; 484 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 485 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 486 ctsio->io_hdr.status = msg_info->hdr.status; 487 ctsio->scsi_status = msg_info->scsi.scsi_status; 488 ctsio->sense_len = msg_info->scsi.sense_len; 489 ctsio->sense_residual = msg_info->scsi.sense_residual; 490 ctsio->residual = msg_info->scsi.residual; 491 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 492 sizeof(ctsio->sense_data)); 493 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 494 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 495 ctl_enqueue_isc((union ctl_io *)ctsio); 496} 497 498static void 499ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 500 union ctl_ha_msg *msg_info) 501{ 502 struct ctl_scsiio *ctsio; 503 504 if (msg_info->hdr.serializing_sc == NULL) { 505 printf("%s: serializing_sc == NULL!\n", __func__); 506 /* XXX KDM now what? */ 507 return; 508 } 509 510 ctsio = &msg_info->hdr.serializing_sc->scsiio; 511#if 0 512 /* 513 * Attempt to catch the situation where an I/O has 514 * been freed, and we're using it again. 515 */ 516 if (ctsio->io_hdr.io_type == 0xff) { 517 union ctl_io *tmp_io; 518 tmp_io = (union ctl_io *)ctsio; 519 printf("%s: %p use after free!\n", __func__, 520 ctsio); 521 printf("%s: type %d msg %d cdb %x iptl: " 522 "%d:%d:%d:%d tag 0x%04x " 523 "flag %#x status %x\n", 524 __func__, 525 tmp_io->io_hdr.io_type, 526 tmp_io->io_hdr.msg_type, 527 tmp_io->scsiio.cdb[0], 528 tmp_io->io_hdr.nexus.initid.id, 529 tmp_io->io_hdr.nexus.targ_port, 530 tmp_io->io_hdr.nexus.targ_target.id, 531 tmp_io->io_hdr.nexus.targ_lun, 532 (tmp_io->io_hdr.io_type == 533 CTL_IO_TASK) ? 534 tmp_io->taskio.tag_num : 535 tmp_io->scsiio.tag_num, 536 tmp_io->io_hdr.flags, 537 tmp_io->io_hdr.status); 538 } 539#endif 540 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 541 ctl_enqueue_isc((union ctl_io *)ctsio); 542} 543 544/* 545 * ISC (Inter Shelf Communication) event handler. Events from the HA 546 * subsystem come in here. 547 */ 548static void 549ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 550{ 551 struct ctl_softc *ctl_softc; 552 union ctl_io *io; 553 struct ctl_prio *presio; 554 ctl_ha_status isc_status; 555 556 ctl_softc = control_softc; 557 io = NULL; 558 559 560#if 0 561 printf("CTL: Isc Msg event %d\n", event); 562#endif 563 if (event == CTL_HA_EVT_MSG_RECV) { 564 union ctl_ha_msg msg_info; 565 566 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 567 sizeof(msg_info), /*wait*/ 0); 568#if 0 569 printf("CTL: msg_type %d\n", msg_info.msg_type); 570#endif 571 if (isc_status != 0) { 572 printf("Error receiving message, status = %d\n", 573 isc_status); 574 return; 575 } 576 577 switch (msg_info.hdr.msg_type) { 578 case CTL_MSG_SERIALIZE: 579#if 0 580 printf("Serialize\n"); 581#endif 582 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 583 if (io == NULL) { 584 printf("ctl_isc_event_handler: can't allocate " 585 "ctl_io!\n"); 586 /* Bad Juju */ 587 /* Need to set busy and send msg back */ 588 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 589 msg_info.hdr.status = CTL_SCSI_ERROR; 590 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 591 msg_info.scsi.sense_len = 0; 592 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 593 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 594 } 595 goto bailout; 596 } 597 ctl_zero_io(io); 598 // populate ctsio from msg_info 599 io->io_hdr.io_type = CTL_IO_SCSI; 600 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 601 io->io_hdr.original_sc = msg_info.hdr.original_sc; 602#if 0 603 printf("pOrig %x\n", (int)msg_info.original_sc); 604#endif 605 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 606 CTL_FLAG_IO_ACTIVE; 607 /* 608 * If we're in serialization-only mode, we don't 609 * want to go through full done processing. Thus 610 * the COPY flag. 611 * 612 * XXX KDM add another flag that is more specific. 613 */ 614 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 615 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 616 io->io_hdr.nexus = msg_info.hdr.nexus; 617#if 0 618 printf("targ %d, port %d, iid %d, lun %d\n", 619 io->io_hdr.nexus.targ_target.id, 620 io->io_hdr.nexus.targ_port, 621 io->io_hdr.nexus.initid.id, 622 io->io_hdr.nexus.targ_lun); 623#endif 624 io->scsiio.tag_num = msg_info.scsi.tag_num; 625 io->scsiio.tag_type = msg_info.scsi.tag_type; 626 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 627 CTL_MAX_CDBLEN); 628 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 629 const struct ctl_cmd_entry *entry; 630 631 entry = ctl_get_cmd_entry(&io->scsiio); 632 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 633 io->io_hdr.flags |= 634 entry->flags & CTL_FLAG_DATA_MASK; 635 } 636 ctl_enqueue_isc(io); 637 break; 638 639 /* Performed on the Originating SC, XFER mode only */ 640 case CTL_MSG_DATAMOVE: { 641 struct ctl_sg_entry *sgl; 642 int i, j; 643 644 io = msg_info.hdr.original_sc; 645 if (io == NULL) { 646 printf("%s: original_sc == NULL!\n", __func__); 647 /* XXX KDM do something here */ 648 break; 649 } 650 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 651 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 652 /* 653 * Keep track of this, we need to send it back over 654 * when the datamove is complete. 655 */ 656 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 657 658 if (msg_info.dt.sg_sequence == 0) { 659 /* 660 * XXX KDM we use the preallocated S/G list 661 * here, but we'll need to change this to 662 * dynamic allocation if we need larger S/G 663 * lists. 664 */ 665 if (msg_info.dt.kern_sg_entries > 666 sizeof(io->io_hdr.remote_sglist) / 667 sizeof(io->io_hdr.remote_sglist[0])) { 668 printf("%s: number of S/G entries " 669 "needed %u > allocated num %zd\n", 670 __func__, 671 msg_info.dt.kern_sg_entries, 672 sizeof(io->io_hdr.remote_sglist)/ 673 sizeof(io->io_hdr.remote_sglist[0])); 674 675 /* 676 * XXX KDM send a message back to 677 * the other side to shut down the 678 * DMA. The error will come back 679 * through via the normal channel. 680 */ 681 break; 682 } 683 sgl = io->io_hdr.remote_sglist; 684 memset(sgl, 0, 685 sizeof(io->io_hdr.remote_sglist)); 686 687 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 688 689 io->scsiio.kern_sg_entries = 690 msg_info.dt.kern_sg_entries; 691 io->scsiio.rem_sg_entries = 692 msg_info.dt.kern_sg_entries; 693 io->scsiio.kern_data_len = 694 msg_info.dt.kern_data_len; 695 io->scsiio.kern_total_len = 696 msg_info.dt.kern_total_len; 697 io->scsiio.kern_data_resid = 698 msg_info.dt.kern_data_resid; 699 io->scsiio.kern_rel_offset = 700 msg_info.dt.kern_rel_offset; 701 /* 702 * Clear out per-DMA flags. 703 */ 704 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 705 /* 706 * Add per-DMA flags that are set for this 707 * particular DMA request. 708 */ 709 io->io_hdr.flags |= msg_info.dt.flags & 710 CTL_FLAG_RDMA_MASK; 711 } else 712 sgl = (struct ctl_sg_entry *) 713 io->scsiio.kern_data_ptr; 714 715 for (i = msg_info.dt.sent_sg_entries, j = 0; 716 i < (msg_info.dt.sent_sg_entries + 717 msg_info.dt.cur_sg_entries); i++, j++) { 718 sgl[i].addr = msg_info.dt.sg_list[j].addr; 719 sgl[i].len = msg_info.dt.sg_list[j].len; 720 721#if 0 722 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 723 __func__, 724 msg_info.dt.sg_list[j].addr, 725 msg_info.dt.sg_list[j].len, 726 sgl[i].addr, sgl[i].len, j, i); 727#endif 728 } 729#if 0 730 memcpy(&sgl[msg_info.dt.sent_sg_entries], 731 msg_info.dt.sg_list, 732 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 733#endif 734 735 /* 736 * If this is the last piece of the I/O, we've got 737 * the full S/G list. Queue processing in the thread. 738 * Otherwise wait for the next piece. 739 */ 740 if (msg_info.dt.sg_last != 0) 741 ctl_enqueue_isc(io); 742 break; 743 } 744 /* Performed on the Serializing (primary) SC, XFER mode only */ 745 case CTL_MSG_DATAMOVE_DONE: { 746 if (msg_info.hdr.serializing_sc == NULL) { 747 printf("%s: serializing_sc == NULL!\n", 748 __func__); 749 /* XXX KDM now what? */ 750 break; 751 } 752 /* 753 * We grab the sense information here in case 754 * there was a failure, so we can return status 755 * back to the initiator. 756 */ 757 io = msg_info.hdr.serializing_sc; 758 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 759 io->io_hdr.status = msg_info.hdr.status; 760 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 761 io->scsiio.sense_len = msg_info.scsi.sense_len; 762 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 763 io->io_hdr.port_status = msg_info.scsi.fetd_status; 764 io->scsiio.residual = msg_info.scsi.residual; 765 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 766 sizeof(io->scsiio.sense_data)); 767 ctl_enqueue_isc(io); 768 break; 769 } 770 771 /* Preformed on Originating SC, SER_ONLY mode */ 772 case CTL_MSG_R2R: 773 io = msg_info.hdr.original_sc; 774 if (io == NULL) { 775 printf("%s: Major Bummer\n", __func__); 776 return; 777 } else { 778#if 0 779 printf("pOrig %x\n",(int) ctsio); 780#endif 781 } 782 io->io_hdr.msg_type = CTL_MSG_R2R; 783 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 784 ctl_enqueue_isc(io); 785 break; 786 787 /* 788 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 789 * mode. 790 * Performed on the Originating (i.e. secondary) SC in XFER 791 * mode 792 */ 793 case CTL_MSG_FINISH_IO: 794 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 795 ctl_isc_handler_finish_xfer(ctl_softc, 796 &msg_info); 797 else 798 ctl_isc_handler_finish_ser_only(ctl_softc, 799 &msg_info); 800 break; 801 802 /* Preformed on Originating SC */ 803 case CTL_MSG_BAD_JUJU: 804 io = msg_info.hdr.original_sc; 805 if (io == NULL) { 806 printf("%s: Bad JUJU!, original_sc is NULL!\n", 807 __func__); 808 break; 809 } 810 ctl_copy_sense_data(&msg_info, io); 811 /* 812 * IO should have already been cleaned up on other 813 * SC so clear this flag so we won't send a message 814 * back to finish the IO there. 815 */ 816 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 817 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 818 819 /* io = msg_info.hdr.serializing_sc; */ 820 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 821 ctl_enqueue_isc(io); 822 break; 823 824 /* Handle resets sent from the other side */ 825 case CTL_MSG_MANAGE_TASKS: { 826 struct ctl_taskio *taskio; 827 taskio = (struct ctl_taskio *)ctl_alloc_io( 828 (void *)ctl_softc->othersc_pool); 829 if (taskio == NULL) { 830 printf("ctl_isc_event_handler: can't allocate " 831 "ctl_io!\n"); 832 /* Bad Juju */ 833 /* should I just call the proper reset func 834 here??? */ 835 goto bailout; 836 } 837 ctl_zero_io((union ctl_io *)taskio); 838 taskio->io_hdr.io_type = CTL_IO_TASK; 839 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 840 taskio->io_hdr.nexus = msg_info.hdr.nexus; 841 taskio->task_action = msg_info.task.task_action; 842 taskio->tag_num = msg_info.task.tag_num; 843 taskio->tag_type = msg_info.task.tag_type; 844#ifdef CTL_TIME_IO 845 taskio->io_hdr.start_time = time_uptime; 846 getbintime(&taskio->io_hdr.start_bt); 847#if 0 848 cs_prof_gettime(&taskio->io_hdr.start_ticks); 849#endif 850#endif /* CTL_TIME_IO */ 851 ctl_run_task((union ctl_io *)taskio); 852 break; 853 } 854 /* Persistent Reserve action which needs attention */ 855 case CTL_MSG_PERS_ACTION: 856 presio = (struct ctl_prio *)ctl_alloc_io( 857 (void *)ctl_softc->othersc_pool); 858 if (presio == NULL) { 859 printf("ctl_isc_event_handler: can't allocate " 860 "ctl_io!\n"); 861 /* Bad Juju */ 862 /* Need to set busy and send msg back */ 863 goto bailout; 864 } 865 ctl_zero_io((union ctl_io *)presio); 866 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 867 presio->pr_msg = msg_info.pr; 868 ctl_enqueue_isc((union ctl_io *)presio); 869 break; 870 case CTL_MSG_SYNC_FE: 871 rcv_sync_msg = 1; 872 break; 873 case CTL_MSG_APS_LOCK: { 874 // It's quicker to execute this then to 875 // queue it. 876 struct ctl_lun *lun; 877 struct ctl_page_index *page_index; 878 struct copan_aps_subpage *current_sp; 879 uint32_t targ_lun; 880 881 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 882 lun = ctl_softc->ctl_luns[targ_lun]; 883 mtx_lock(&lun->lun_lock); 884 page_index = &lun->mode_pages.index[index_to_aps_page]; 885 current_sp = (struct copan_aps_subpage *) 886 (page_index->page_data + 887 (page_index->page_len * CTL_PAGE_CURRENT)); 888 889 current_sp->lock_active = msg_info.aps.lock_flag; 890 mtx_unlock(&lun->lun_lock); 891 break; 892 } 893 default: 894 printf("How did I get here?\n"); 895 } 896 } else if (event == CTL_HA_EVT_MSG_SENT) { 897 if (param != CTL_HA_STATUS_SUCCESS) { 898 printf("Bad status from ctl_ha_msg_send status %d\n", 899 param); 900 } 901 return; 902 } else if (event == CTL_HA_EVT_DISCONNECT) { 903 printf("CTL: Got a disconnect from Isc\n"); 904 return; 905 } else { 906 printf("ctl_isc_event_handler: Unknown event %d\n", event); 907 return; 908 } 909 910bailout: 911 return; 912} 913 914static void 915ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 916{ 917 struct scsi_sense_data *sense; 918 919 sense = &dest->scsiio.sense_data; 920 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 921 dest->scsiio.scsi_status = src->scsi.scsi_status; 922 dest->scsiio.sense_len = src->scsi.sense_len; 923 dest->io_hdr.status = src->hdr.status; 924} 925 926static int 927ctl_init(void) 928{ 929 struct ctl_softc *softc; 930 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 931 struct ctl_frontend *fe; 932 uint8_t sc_id =0; 933 int i, error, retval; 934 //int isc_retval; 935 936 retval = 0; 937 ctl_pause_rtr = 0; 938 rcv_sync_msg = 0; 939 940 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 941 M_WAITOK | M_ZERO); 942 softc = control_softc; 943 944 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 945 "cam/ctl"); 946 947 softc->dev->si_drv1 = softc; 948 949 /* 950 * By default, return a "bad LUN" peripheral qualifier for unknown 951 * LUNs. The user can override this default using the tunable or 952 * sysctl. See the comment in ctl_inquiry_std() for more details. 953 */ 954 softc->inquiry_pq_no_lun = 1; 955 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 956 &softc->inquiry_pq_no_lun); 957 sysctl_ctx_init(&softc->sysctl_ctx); 958 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 959 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 960 CTLFLAG_RD, 0, "CAM Target Layer"); 961 962 if (softc->sysctl_tree == NULL) { 963 printf("%s: unable to allocate sysctl tree\n", __func__); 964 destroy_dev(softc->dev); 965 free(control_softc, M_DEVBUF); 966 control_softc = NULL; 967 return (ENOMEM); 968 } 969 970 SYSCTL_ADD_INT(&softc->sysctl_ctx, 971 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 972 "inquiry_pq_no_lun", CTLFLAG_RW, 973 &softc->inquiry_pq_no_lun, 0, 974 "Report no lun possible for invalid LUNs"); 975 976 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 977 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 978 softc->open_count = 0; 979 980 /* 981 * Default to actually sending a SYNCHRONIZE CACHE command down to 982 * the drive. 983 */ 984 softc->flags = CTL_FLAG_REAL_SYNC; 985 986 /* 987 * In Copan's HA scheme, the "master" and "slave" roles are 988 * figured out through the slot the controller is in. Although it 989 * is an active/active system, someone has to be in charge. 990 */ 991#ifdef NEEDTOPORT 992 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 993#endif 994 995 if (sc_id == 0) { 996 softc->flags |= CTL_FLAG_MASTER_SHELF; 997 persis_offset = 0; 998 } else 999 persis_offset = CTL_MAX_INITIATORS; 1000 1001 /* 1002 * XXX KDM need to figure out where we want to get our target ID 1003 * and WWID. Is it different on each port? 1004 */ 1005 softc->target.id = 0; 1006 softc->target.wwid[0] = 0x12345678; 1007 softc->target.wwid[1] = 0x87654321; 1008 STAILQ_INIT(&softc->lun_list); 1009 STAILQ_INIT(&softc->pending_lun_queue); 1010 STAILQ_INIT(&softc->fe_list); 1011 STAILQ_INIT(&softc->be_list); 1012 STAILQ_INIT(&softc->io_pools); 1013 1014 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1015 &internal_pool)!= 0){ 1016 printf("ctl: can't allocate %d entry internal pool, " 1017 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1018 return (ENOMEM); 1019 } 1020 1021 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1022 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1023 printf("ctl: can't allocate %d entry emergency pool, " 1024 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1025 ctl_pool_free(internal_pool); 1026 return (ENOMEM); 1027 } 1028 1029 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1030 &other_pool) != 0) 1031 { 1032 printf("ctl: can't allocate %d entry other SC pool, " 1033 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1034 ctl_pool_free(internal_pool); 1035 ctl_pool_free(emergency_pool); 1036 return (ENOMEM); 1037 } 1038 1039 softc->internal_pool = internal_pool; 1040 softc->emergency_pool = emergency_pool; 1041 softc->othersc_pool = other_pool; 1042 1043 if (worker_threads <= 0) 1044 worker_threads = max(1, mp_ncpus / 4); 1045 if (worker_threads > CTL_MAX_THREADS) 1046 worker_threads = CTL_MAX_THREADS; 1047 1048 for (i = 0; i < worker_threads; i++) { 1049 struct ctl_thread *thr = &softc->threads[i]; 1050 1051 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1052 thr->ctl_softc = softc; 1053 STAILQ_INIT(&thr->incoming_queue); 1054 STAILQ_INIT(&thr->rtr_queue); 1055 STAILQ_INIT(&thr->done_queue); 1056 STAILQ_INIT(&thr->isc_queue); 1057 1058 error = kproc_kthread_add(ctl_work_thread, thr, 1059 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1060 if (error != 0) { 1061 printf("error creating CTL work thread!\n"); 1062 ctl_pool_free(internal_pool); 1063 ctl_pool_free(emergency_pool); 1064 ctl_pool_free(other_pool); 1065 return (error); 1066 } 1067 } 1068 error = kproc_kthread_add(ctl_lun_thread, softc, 1069 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1070 if (error != 0) { 1071 printf("error creating CTL lun thread!\n"); 1072 ctl_pool_free(internal_pool); 1073 ctl_pool_free(emergency_pool); 1074 ctl_pool_free(other_pool); 1075 return (error); 1076 } 1077 if (bootverbose) 1078 printf("ctl: CAM Target Layer loaded\n"); 1079 1080 /* 1081 * Initialize the initiator and portname mappings 1082 */ 1083 memset(softc->wwpn_iid, 0, sizeof(softc->wwpn_iid)); 1084 1085 /* 1086 * Initialize the ioctl front end. 1087 */ 1088 fe = &softc->ioctl_info.fe; 1089 sprintf(softc->ioctl_info.port_name, "CTL ioctl"); 1090 fe->port_type = CTL_PORT_IOCTL; 1091 fe->num_requested_ctl_io = 100; 1092 fe->port_name = softc->ioctl_info.port_name; 1093 fe->port_online = ctl_ioctl_online; 1094 fe->port_offline = ctl_ioctl_offline; 1095 fe->onoff_arg = &softc->ioctl_info; 1096 fe->targ_enable = ctl_ioctl_targ_enable; 1097 fe->targ_disable = ctl_ioctl_targ_disable; 1098 fe->lun_enable = ctl_ioctl_lun_enable; 1099 fe->lun_disable = ctl_ioctl_lun_disable; 1100 fe->targ_lun_arg = &softc->ioctl_info; 1101 fe->fe_datamove = ctl_ioctl_datamove; 1102 fe->fe_done = ctl_ioctl_done; 1103 fe->max_targets = 15; 1104 fe->max_target_id = 15; 1105 1106 if (ctl_frontend_register(&softc->ioctl_info.fe, 1107 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1108 printf("ctl: ioctl front end registration failed, will " 1109 "continue anyway\n"); 1110 } 1111 1112#ifdef CTL_IO_DELAY 1113 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1114 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1115 sizeof(struct callout), CTL_TIMER_BYTES); 1116 return (EINVAL); 1117 } 1118#endif /* CTL_IO_DELAY */ 1119 1120 return (0); 1121} 1122 1123void 1124ctl_shutdown(void) 1125{ 1126 struct ctl_softc *softc; 1127 struct ctl_lun *lun, *next_lun; 1128 struct ctl_io_pool *pool; 1129 1130 softc = (struct ctl_softc *)control_softc; 1131 1132 if (ctl_frontend_deregister(&softc->ioctl_info.fe) != 0) 1133 printf("ctl: ioctl front end deregistration failed\n"); 1134 1135 mtx_lock(&softc->ctl_lock); 1136 1137 /* 1138 * Free up each LUN. 1139 */ 1140 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1141 next_lun = STAILQ_NEXT(lun, links); 1142 ctl_free_lun(lun); 1143 } 1144 1145 mtx_unlock(&softc->ctl_lock); 1146 1147 /* 1148 * This will rip the rug out from under any FETDs or anyone else 1149 * that has a pool allocated. Since we increment our module 1150 * refcount any time someone outside the main CTL module allocates 1151 * a pool, we shouldn't have any problems here. The user won't be 1152 * able to unload the CTL module until client modules have 1153 * successfully unloaded. 1154 */ 1155 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1156 ctl_pool_free(pool); 1157 1158#if 0 1159 ctl_shutdown_thread(softc->work_thread); 1160 mtx_destroy(&softc->queue_lock); 1161#endif 1162 1163 mtx_destroy(&softc->pool_lock); 1164 mtx_destroy(&softc->ctl_lock); 1165 1166 destroy_dev(softc->dev); 1167 1168 sysctl_ctx_free(&softc->sysctl_ctx); 1169 1170 free(control_softc, M_DEVBUF); 1171 control_softc = NULL; 1172 1173 if (bootverbose) 1174 printf("ctl: CAM Target Layer unloaded\n"); 1175} 1176 1177static int 1178ctl_module_event_handler(module_t mod, int what, void *arg) 1179{ 1180 1181 switch (what) { 1182 case MOD_LOAD: 1183 return (ctl_init()); 1184 case MOD_UNLOAD: 1185 return (EBUSY); 1186 default: 1187 return (EOPNOTSUPP); 1188 } 1189} 1190 1191/* 1192 * XXX KDM should we do some access checks here? Bump a reference count to 1193 * prevent a CTL module from being unloaded while someone has it open? 1194 */ 1195static int 1196ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1197{ 1198 return (0); 1199} 1200 1201static int 1202ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1203{ 1204 return (0); 1205} 1206 1207int 1208ctl_port_enable(ctl_port_type port_type) 1209{ 1210 struct ctl_softc *softc; 1211 struct ctl_frontend *fe; 1212 1213 if (ctl_is_single == 0) { 1214 union ctl_ha_msg msg_info; 1215 int isc_retval; 1216 1217#if 0 1218 printf("%s: HA mode, synchronizing frontend enable\n", 1219 __func__); 1220#endif 1221 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1222 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1223 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1224 printf("Sync msg send error retval %d\n", isc_retval); 1225 } 1226 if (!rcv_sync_msg) { 1227 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1228 sizeof(msg_info), 1); 1229 } 1230#if 0 1231 printf("CTL:Frontend Enable\n"); 1232 } else { 1233 printf("%s: single mode, skipping frontend synchronization\n", 1234 __func__); 1235#endif 1236 } 1237 1238 softc = control_softc; 1239 1240 STAILQ_FOREACH(fe, &softc->fe_list, links) { 1241 if (port_type & fe->port_type) 1242 { 1243#if 0 1244 printf("port %d\n", fe->targ_port); 1245#endif 1246 ctl_frontend_online(fe); 1247 } 1248 } 1249 1250 return (0); 1251} 1252 1253int 1254ctl_port_disable(ctl_port_type port_type) 1255{ 1256 struct ctl_softc *softc; 1257 struct ctl_frontend *fe; 1258 1259 softc = control_softc; 1260 1261 STAILQ_FOREACH(fe, &softc->fe_list, links) { 1262 if (port_type & fe->port_type) 1263 ctl_frontend_offline(fe); 1264 } 1265 1266 return (0); 1267} 1268 1269/* 1270 * Returns 0 for success, 1 for failure. 1271 * Currently the only failure mode is if there aren't enough entries 1272 * allocated. So, in case of a failure, look at num_entries_dropped, 1273 * reallocate and try again. 1274 */ 1275int 1276ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1277 int *num_entries_filled, int *num_entries_dropped, 1278 ctl_port_type port_type, int no_virtual) 1279{ 1280 struct ctl_softc *softc; 1281 struct ctl_frontend *fe; 1282 int entries_dropped, entries_filled; 1283 int retval; 1284 int i; 1285 1286 softc = control_softc; 1287 1288 retval = 0; 1289 entries_filled = 0; 1290 entries_dropped = 0; 1291 1292 i = 0; 1293 mtx_lock(&softc->ctl_lock); 1294 STAILQ_FOREACH(fe, &softc->fe_list, links) { 1295 struct ctl_port_entry *entry; 1296 1297 if ((fe->port_type & port_type) == 0) 1298 continue; 1299 1300 if ((no_virtual != 0) 1301 && (fe->virtual_port != 0)) 1302 continue; 1303 1304 if (entries_filled >= num_entries_alloced) { 1305 entries_dropped++; 1306 continue; 1307 } 1308 entry = &entries[i]; 1309 1310 entry->port_type = fe->port_type; 1311 strlcpy(entry->port_name, fe->port_name, 1312 sizeof(entry->port_name)); 1313 entry->physical_port = fe->physical_port; 1314 entry->virtual_port = fe->virtual_port; 1315 entry->wwnn = fe->wwnn; 1316 entry->wwpn = fe->wwpn; 1317 1318 i++; 1319 entries_filled++; 1320 } 1321 1322 mtx_unlock(&softc->ctl_lock); 1323 1324 if (entries_dropped > 0) 1325 retval = 1; 1326 1327 *num_entries_dropped = entries_dropped; 1328 *num_entries_filled = entries_filled; 1329 1330 return (retval); 1331} 1332 1333static void 1334ctl_ioctl_online(void *arg) 1335{ 1336 struct ctl_ioctl_info *ioctl_info; 1337 1338 ioctl_info = (struct ctl_ioctl_info *)arg; 1339 1340 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1341} 1342 1343static void 1344ctl_ioctl_offline(void *arg) 1345{ 1346 struct ctl_ioctl_info *ioctl_info; 1347 1348 ioctl_info = (struct ctl_ioctl_info *)arg; 1349 1350 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1351} 1352 1353/* 1354 * Remove an initiator by port number and initiator ID. 1355 * Returns 0 for success, 1 for failure. 1356 */ 1357int 1358ctl_remove_initiator(int32_t targ_port, uint32_t iid) 1359{ 1360 struct ctl_softc *softc; 1361 1362 softc = control_softc; 1363 1364 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1365 1366 if ((targ_port < 0) 1367 || (targ_port > CTL_MAX_PORTS)) { 1368 printf("%s: invalid port number %d\n", __func__, targ_port); 1369 return (1); 1370 } 1371 if (iid > CTL_MAX_INIT_PER_PORT) { 1372 printf("%s: initiator ID %u > maximun %u!\n", 1373 __func__, iid, CTL_MAX_INIT_PER_PORT); 1374 return (1); 1375 } 1376 1377 mtx_lock(&softc->ctl_lock); 1378 1379 softc->wwpn_iid[targ_port][iid].in_use = 0; 1380 1381 mtx_unlock(&softc->ctl_lock); 1382 1383 return (0); 1384} 1385 1386/* 1387 * Add an initiator to the initiator map. 1388 * Returns 0 for success, 1 for failure. 1389 */ 1390int 1391ctl_add_initiator(uint64_t wwpn, int32_t targ_port, uint32_t iid) 1392{ 1393 struct ctl_softc *softc; 1394 int retval; 1395 1396 softc = control_softc; 1397 1398 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1399 1400 retval = 0; 1401 1402 if ((targ_port < 0) 1403 || (targ_port > CTL_MAX_PORTS)) { 1404 printf("%s: invalid port number %d\n", __func__, targ_port); 1405 return (1); 1406 } 1407 if (iid > CTL_MAX_INIT_PER_PORT) { 1408 printf("%s: WWPN %#jx initiator ID %u > maximun %u!\n", 1409 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1410 return (1); 1411 } 1412 1413 mtx_lock(&softc->ctl_lock); 1414 1415 if (softc->wwpn_iid[targ_port][iid].in_use != 0) { 1416 /* 1417 * We don't treat this as an error. 1418 */ 1419 if (softc->wwpn_iid[targ_port][iid].wwpn == wwpn) { 1420 printf("%s: port %d iid %u WWPN %#jx arrived again?\n", 1421 __func__, targ_port, iid, (uintmax_t)wwpn); 1422 goto bailout; 1423 } 1424 1425 /* 1426 * This is an error, but what do we do about it? The 1427 * driver is telling us we have a new WWPN for this 1428 * initiator ID, so we pretty much need to use it. 1429 */ 1430 printf("%s: port %d iid %u WWPN %#jx arrived, WWPN %#jx is " 1431 "still at that address\n", __func__, targ_port, iid, 1432 (uintmax_t)wwpn, 1433 (uintmax_t)softc->wwpn_iid[targ_port][iid].wwpn); 1434 1435 /* 1436 * XXX KDM clear have_ca and ua_pending on each LUN for 1437 * this initiator. 1438 */ 1439 } 1440 softc->wwpn_iid[targ_port][iid].in_use = 1; 1441 softc->wwpn_iid[targ_port][iid].iid = iid; 1442 softc->wwpn_iid[targ_port][iid].wwpn = wwpn; 1443 softc->wwpn_iid[targ_port][iid].port = targ_port; 1444 1445bailout: 1446 1447 mtx_unlock(&softc->ctl_lock); 1448 1449 return (retval); 1450} 1451 1452/* 1453 * XXX KDM should we pretend to do something in the target/lun 1454 * enable/disable functions? 1455 */ 1456static int 1457ctl_ioctl_targ_enable(void *arg, struct ctl_id targ_id) 1458{ 1459 return (0); 1460} 1461 1462static int 1463ctl_ioctl_targ_disable(void *arg, struct ctl_id targ_id) 1464{ 1465 return (0); 1466} 1467 1468static int 1469ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1470{ 1471 return (0); 1472} 1473 1474static int 1475ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1476{ 1477 return (0); 1478} 1479 1480/* 1481 * Data movement routine for the CTL ioctl frontend port. 1482 */ 1483static int 1484ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1485{ 1486 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1487 struct ctl_sg_entry ext_entry, kern_entry; 1488 int ext_sglen, ext_sg_entries, kern_sg_entries; 1489 int ext_sg_start, ext_offset; 1490 int len_to_copy, len_copied; 1491 int kern_watermark, ext_watermark; 1492 int ext_sglist_malloced; 1493 int i, j; 1494 1495 ext_sglist_malloced = 0; 1496 ext_sg_start = 0; 1497 ext_offset = 0; 1498 1499 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1500 1501 /* 1502 * If this flag is set, fake the data transfer. 1503 */ 1504 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1505 ctsio->ext_data_filled = ctsio->ext_data_len; 1506 goto bailout; 1507 } 1508 1509 /* 1510 * To simplify things here, if we have a single buffer, stick it in 1511 * a S/G entry and just make it a single entry S/G list. 1512 */ 1513 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1514 int len_seen; 1515 1516 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1517 1518 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1519 M_WAITOK); 1520 ext_sglist_malloced = 1; 1521 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1522 ext_sglen) != 0) { 1523 ctl_set_internal_failure(ctsio, 1524 /*sks_valid*/ 0, 1525 /*retry_count*/ 0); 1526 goto bailout; 1527 } 1528 ext_sg_entries = ctsio->ext_sg_entries; 1529 len_seen = 0; 1530 for (i = 0; i < ext_sg_entries; i++) { 1531 if ((len_seen + ext_sglist[i].len) >= 1532 ctsio->ext_data_filled) { 1533 ext_sg_start = i; 1534 ext_offset = ctsio->ext_data_filled - len_seen; 1535 break; 1536 } 1537 len_seen += ext_sglist[i].len; 1538 } 1539 } else { 1540 ext_sglist = &ext_entry; 1541 ext_sglist->addr = ctsio->ext_data_ptr; 1542 ext_sglist->len = ctsio->ext_data_len; 1543 ext_sg_entries = 1; 1544 ext_sg_start = 0; 1545 ext_offset = ctsio->ext_data_filled; 1546 } 1547 1548 if (ctsio->kern_sg_entries > 0) { 1549 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1550 kern_sg_entries = ctsio->kern_sg_entries; 1551 } else { 1552 kern_sglist = &kern_entry; 1553 kern_sglist->addr = ctsio->kern_data_ptr; 1554 kern_sglist->len = ctsio->kern_data_len; 1555 kern_sg_entries = 1; 1556 } 1557 1558 1559 kern_watermark = 0; 1560 ext_watermark = ext_offset; 1561 len_copied = 0; 1562 for (i = ext_sg_start, j = 0; 1563 i < ext_sg_entries && j < kern_sg_entries;) { 1564 uint8_t *ext_ptr, *kern_ptr; 1565 1566 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1567 kern_sglist[j].len - kern_watermark); 1568 1569 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1570 ext_ptr = ext_ptr + ext_watermark; 1571 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1572 /* 1573 * XXX KDM fix this! 1574 */ 1575 panic("need to implement bus address support"); 1576#if 0 1577 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1578#endif 1579 } else 1580 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1581 kern_ptr = kern_ptr + kern_watermark; 1582 1583 kern_watermark += len_to_copy; 1584 ext_watermark += len_to_copy; 1585 1586 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1587 CTL_FLAG_DATA_IN) { 1588 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1589 "bytes to user\n", len_to_copy)); 1590 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1591 "to %p\n", kern_ptr, ext_ptr)); 1592 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1593 ctl_set_internal_failure(ctsio, 1594 /*sks_valid*/ 0, 1595 /*retry_count*/ 0); 1596 goto bailout; 1597 } 1598 } else { 1599 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1600 "bytes from user\n", len_to_copy)); 1601 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1602 "to %p\n", ext_ptr, kern_ptr)); 1603 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1604 ctl_set_internal_failure(ctsio, 1605 /*sks_valid*/ 0, 1606 /*retry_count*/0); 1607 goto bailout; 1608 } 1609 } 1610 1611 len_copied += len_to_copy; 1612 1613 if (ext_sglist[i].len == ext_watermark) { 1614 i++; 1615 ext_watermark = 0; 1616 } 1617 1618 if (kern_sglist[j].len == kern_watermark) { 1619 j++; 1620 kern_watermark = 0; 1621 } 1622 } 1623 1624 ctsio->ext_data_filled += len_copied; 1625 1626 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1627 "kern_sg_entries: %d\n", ext_sg_entries, 1628 kern_sg_entries)); 1629 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1630 "kern_data_len = %d\n", ctsio->ext_data_len, 1631 ctsio->kern_data_len)); 1632 1633 1634 /* XXX KDM set residual?? */ 1635bailout: 1636 1637 if (ext_sglist_malloced != 0) 1638 free(ext_sglist, M_CTL); 1639 1640 return (CTL_RETVAL_COMPLETE); 1641} 1642 1643/* 1644 * Serialize a command that went down the "wrong" side, and so was sent to 1645 * this controller for execution. The logic is a little different than the 1646 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1647 * sent back to the other side, but in the success case, we execute the 1648 * command on this side (XFER mode) or tell the other side to execute it 1649 * (SER_ONLY mode). 1650 */ 1651static int 1652ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1653{ 1654 struct ctl_softc *ctl_softc; 1655 union ctl_ha_msg msg_info; 1656 struct ctl_lun *lun; 1657 int retval = 0; 1658 uint32_t targ_lun; 1659 1660 ctl_softc = control_softc; 1661 1662 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1663 lun = ctl_softc->ctl_luns[targ_lun]; 1664 if (lun==NULL) 1665 { 1666 /* 1667 * Why isn't LUN defined? The other side wouldn't 1668 * send a cmd if the LUN is undefined. 1669 */ 1670 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1671 1672 /* "Logical unit not supported" */ 1673 ctl_set_sense_data(&msg_info.scsi.sense_data, 1674 lun, 1675 /*sense_format*/SSD_TYPE_NONE, 1676 /*current_error*/ 1, 1677 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1678 /*asc*/ 0x25, 1679 /*ascq*/ 0x00, 1680 SSD_ELEM_NONE); 1681 1682 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1683 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1684 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1685 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1686 msg_info.hdr.serializing_sc = NULL; 1687 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1688 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1689 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1690 } 1691 return(1); 1692 1693 } 1694 1695 mtx_lock(&lun->lun_lock); 1696 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1697 1698 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1699 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1700 ooa_links))) { 1701 case CTL_ACTION_BLOCK: 1702 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1703 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1704 blocked_links); 1705 break; 1706 case CTL_ACTION_PASS: 1707 case CTL_ACTION_SKIP: 1708 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1709 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1710 ctl_enqueue_rtr((union ctl_io *)ctsio); 1711 } else { 1712 1713 /* send msg back to other side */ 1714 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1715 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1716 msg_info.hdr.msg_type = CTL_MSG_R2R; 1717#if 0 1718 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1719#endif 1720 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1721 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1722 } 1723 } 1724 break; 1725 case CTL_ACTION_OVERLAP: 1726 /* OVERLAPPED COMMANDS ATTEMPTED */ 1727 ctl_set_sense_data(&msg_info.scsi.sense_data, 1728 lun, 1729 /*sense_format*/SSD_TYPE_NONE, 1730 /*current_error*/ 1, 1731 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1732 /*asc*/ 0x4E, 1733 /*ascq*/ 0x00, 1734 SSD_ELEM_NONE); 1735 1736 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1737 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1738 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1739 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1740 msg_info.hdr.serializing_sc = NULL; 1741 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1742#if 0 1743 printf("BAD JUJU:Major Bummer Overlap\n"); 1744#endif 1745 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1746 retval = 1; 1747 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1748 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1749 } 1750 break; 1751 case CTL_ACTION_OVERLAP_TAG: 1752 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1753 ctl_set_sense_data(&msg_info.scsi.sense_data, 1754 lun, 1755 /*sense_format*/SSD_TYPE_NONE, 1756 /*current_error*/ 1, 1757 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1758 /*asc*/ 0x4D, 1759 /*ascq*/ ctsio->tag_num & 0xff, 1760 SSD_ELEM_NONE); 1761 1762 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1763 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1764 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1765 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1766 msg_info.hdr.serializing_sc = NULL; 1767 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1768#if 0 1769 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1770#endif 1771 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1772 retval = 1; 1773 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1774 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1775 } 1776 break; 1777 case CTL_ACTION_ERROR: 1778 default: 1779 /* "Internal target failure" */ 1780 ctl_set_sense_data(&msg_info.scsi.sense_data, 1781 lun, 1782 /*sense_format*/SSD_TYPE_NONE, 1783 /*current_error*/ 1, 1784 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1785 /*asc*/ 0x44, 1786 /*ascq*/ 0x00, 1787 SSD_ELEM_NONE); 1788 1789 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1790 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1791 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1792 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1793 msg_info.hdr.serializing_sc = NULL; 1794 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1795#if 0 1796 printf("BAD JUJU:Major Bummer HW Error\n"); 1797#endif 1798 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1799 retval = 1; 1800 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1801 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1802 } 1803 break; 1804 } 1805 mtx_unlock(&lun->lun_lock); 1806 return (retval); 1807} 1808 1809static int 1810ctl_ioctl_submit_wait(union ctl_io *io) 1811{ 1812 struct ctl_fe_ioctl_params params; 1813 ctl_fe_ioctl_state last_state; 1814 int done, retval; 1815 1816 retval = 0; 1817 1818 bzero(¶ms, sizeof(params)); 1819 1820 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1821 cv_init(¶ms.sem, "ctlioccv"); 1822 params.state = CTL_IOCTL_INPROG; 1823 last_state = params.state; 1824 1825 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1826 1827 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1828 1829 /* This shouldn't happen */ 1830 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1831 return (retval); 1832 1833 done = 0; 1834 1835 do { 1836 mtx_lock(¶ms.ioctl_mtx); 1837 /* 1838 * Check the state here, and don't sleep if the state has 1839 * already changed (i.e. wakeup has already occured, but we 1840 * weren't waiting yet). 1841 */ 1842 if (params.state == last_state) { 1843 /* XXX KDM cv_wait_sig instead? */ 1844 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1845 } 1846 last_state = params.state; 1847 1848 switch (params.state) { 1849 case CTL_IOCTL_INPROG: 1850 /* Why did we wake up? */ 1851 /* XXX KDM error here? */ 1852 mtx_unlock(¶ms.ioctl_mtx); 1853 break; 1854 case CTL_IOCTL_DATAMOVE: 1855 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1856 1857 /* 1858 * change last_state back to INPROG to avoid 1859 * deadlock on subsequent data moves. 1860 */ 1861 params.state = last_state = CTL_IOCTL_INPROG; 1862 1863 mtx_unlock(¶ms.ioctl_mtx); 1864 ctl_ioctl_do_datamove(&io->scsiio); 1865 /* 1866 * Note that in some cases, most notably writes, 1867 * this will queue the I/O and call us back later. 1868 * In other cases, generally reads, this routine 1869 * will immediately call back and wake us up, 1870 * probably using our own context. 1871 */ 1872 io->scsiio.be_move_done(io); 1873 break; 1874 case CTL_IOCTL_DONE: 1875 mtx_unlock(¶ms.ioctl_mtx); 1876 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1877 done = 1; 1878 break; 1879 default: 1880 mtx_unlock(¶ms.ioctl_mtx); 1881 /* XXX KDM error here? */ 1882 break; 1883 } 1884 } while (done == 0); 1885 1886 mtx_destroy(¶ms.ioctl_mtx); 1887 cv_destroy(¶ms.sem); 1888 1889 return (CTL_RETVAL_COMPLETE); 1890} 1891 1892static void 1893ctl_ioctl_datamove(union ctl_io *io) 1894{ 1895 struct ctl_fe_ioctl_params *params; 1896 1897 params = (struct ctl_fe_ioctl_params *) 1898 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1899 1900 mtx_lock(¶ms->ioctl_mtx); 1901 params->state = CTL_IOCTL_DATAMOVE; 1902 cv_broadcast(¶ms->sem); 1903 mtx_unlock(¶ms->ioctl_mtx); 1904} 1905 1906static void 1907ctl_ioctl_done(union ctl_io *io) 1908{ 1909 struct ctl_fe_ioctl_params *params; 1910 1911 params = (struct ctl_fe_ioctl_params *) 1912 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1913 1914 mtx_lock(¶ms->ioctl_mtx); 1915 params->state = CTL_IOCTL_DONE; 1916 cv_broadcast(¶ms->sem); 1917 mtx_unlock(¶ms->ioctl_mtx); 1918} 1919 1920static void 1921ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 1922{ 1923 struct ctl_fe_ioctl_startstop_info *sd_info; 1924 1925 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 1926 1927 sd_info->hs_info.status = metatask->status; 1928 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 1929 sd_info->hs_info.luns_complete = 1930 metatask->taskinfo.startstop.luns_complete; 1931 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 1932 1933 cv_broadcast(&sd_info->sem); 1934} 1935 1936static void 1937ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 1938{ 1939 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 1940 1941 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 1942 1943 mtx_lock(fe_bbr_info->lock); 1944 fe_bbr_info->bbr_info->status = metatask->status; 1945 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 1946 fe_bbr_info->wakeup_done = 1; 1947 mtx_unlock(fe_bbr_info->lock); 1948 1949 cv_broadcast(&fe_bbr_info->sem); 1950} 1951 1952/* 1953 * Returns 0 for success, errno for failure. 1954 */ 1955static int 1956ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 1957 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 1958{ 1959 union ctl_io *io; 1960 int retval; 1961 1962 retval = 0; 1963 1964 mtx_lock(&lun->lun_lock); 1965 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 1966 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 1967 ooa_links)) { 1968 struct ctl_ooa_entry *entry; 1969 1970 /* 1971 * If we've got more than we can fit, just count the 1972 * remaining entries. 1973 */ 1974 if (*cur_fill_num >= ooa_hdr->alloc_num) 1975 continue; 1976 1977 entry = &kern_entries[*cur_fill_num]; 1978 1979 entry->tag_num = io->scsiio.tag_num; 1980 entry->lun_num = lun->lun; 1981#ifdef CTL_TIME_IO 1982 entry->start_bt = io->io_hdr.start_bt; 1983#endif 1984 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 1985 entry->cdb_len = io->scsiio.cdb_len; 1986 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 1987 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 1988 1989 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 1990 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 1991 1992 if (io->io_hdr.flags & CTL_FLAG_ABORT) 1993 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 1994 1995 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 1996 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 1997 1998 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 1999 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2000 } 2001 mtx_unlock(&lun->lun_lock); 2002 2003 return (retval); 2004} 2005 2006static void * 2007ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2008 size_t error_str_len) 2009{ 2010 void *kptr; 2011 2012 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2013 2014 if (copyin(user_addr, kptr, len) != 0) { 2015 snprintf(error_str, error_str_len, "Error copying %d bytes " 2016 "from user address %p to kernel address %p", len, 2017 user_addr, kptr); 2018 free(kptr, M_CTL); 2019 return (NULL); 2020 } 2021 2022 return (kptr); 2023} 2024 2025static void 2026ctl_free_args(int num_be_args, struct ctl_be_arg *be_args) 2027{ 2028 int i; 2029 2030 if (be_args == NULL) 2031 return; 2032 2033 for (i = 0; i < num_be_args; i++) { 2034 free(be_args[i].kname, M_CTL); 2035 free(be_args[i].kvalue, M_CTL); 2036 } 2037 2038 free(be_args, M_CTL); 2039} 2040 2041static struct ctl_be_arg * 2042ctl_copyin_args(int num_be_args, struct ctl_be_arg *be_args, 2043 char *error_str, size_t error_str_len) 2044{ 2045 struct ctl_be_arg *args; 2046 int i; 2047 2048 args = ctl_copyin_alloc(be_args, num_be_args * sizeof(*be_args), 2049 error_str, error_str_len); 2050 2051 if (args == NULL) 2052 goto bailout; 2053 2054 for (i = 0; i < num_be_args; i++) { 2055 args[i].kname = NULL; 2056 args[i].kvalue = NULL; 2057 } 2058 2059 for (i = 0; i < num_be_args; i++) { 2060 uint8_t *tmpptr; 2061 2062 args[i].kname = ctl_copyin_alloc(args[i].name, 2063 args[i].namelen, error_str, error_str_len); 2064 if (args[i].kname == NULL) 2065 goto bailout; 2066 2067 if (args[i].kname[args[i].namelen - 1] != '\0') { 2068 snprintf(error_str, error_str_len, "Argument %d " 2069 "name is not NUL-terminated", i); 2070 goto bailout; 2071 } 2072 2073 args[i].kvalue = NULL; 2074 2075 tmpptr = ctl_copyin_alloc(args[i].value, 2076 args[i].vallen, error_str, error_str_len); 2077 if (tmpptr == NULL) 2078 goto bailout; 2079 2080 args[i].kvalue = tmpptr; 2081 2082 if ((args[i].flags & CTL_BEARG_ASCII) 2083 && (tmpptr[args[i].vallen - 1] != '\0')) { 2084 snprintf(error_str, error_str_len, "Argument %d " 2085 "value is not NUL-terminated", i); 2086 goto bailout; 2087 } 2088 } 2089 2090 return (args); 2091bailout: 2092 2093 ctl_free_args(num_be_args, args); 2094 2095 return (NULL); 2096} 2097 2098/* 2099 * Escape characters that are illegal or not recommended in XML. 2100 */ 2101int 2102ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2103{ 2104 int retval; 2105 2106 retval = 0; 2107 2108 for (; *str; str++) { 2109 switch (*str) { 2110 case '&': 2111 retval = sbuf_printf(sb, "&"); 2112 break; 2113 case '>': 2114 retval = sbuf_printf(sb, ">"); 2115 break; 2116 case '<': 2117 retval = sbuf_printf(sb, "<"); 2118 break; 2119 default: 2120 retval = sbuf_putc(sb, *str); 2121 break; 2122 } 2123 2124 if (retval != 0) 2125 break; 2126 2127 } 2128 2129 return (retval); 2130} 2131 2132static int 2133ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2134 struct thread *td) 2135{ 2136 struct ctl_softc *softc; 2137 int retval; 2138 2139 softc = control_softc; 2140 2141 retval = 0; 2142 2143 switch (cmd) { 2144 case CTL_IO: { 2145 union ctl_io *io; 2146 void *pool_tmp; 2147 2148 /* 2149 * If we haven't been "enabled", don't allow any SCSI I/O 2150 * to this FETD. 2151 */ 2152 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2153 retval = EPERM; 2154 break; 2155 } 2156 2157 io = ctl_alloc_io(softc->ioctl_info.fe.ctl_pool_ref); 2158 if (io == NULL) { 2159 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2160 retval = ENOSPC; 2161 break; 2162 } 2163 2164 /* 2165 * Need to save the pool reference so it doesn't get 2166 * spammed by the user's ctl_io. 2167 */ 2168 pool_tmp = io->io_hdr.pool; 2169 2170 memcpy(io, (void *)addr, sizeof(*io)); 2171 2172 io->io_hdr.pool = pool_tmp; 2173 /* 2174 * No status yet, so make sure the status is set properly. 2175 */ 2176 io->io_hdr.status = CTL_STATUS_NONE; 2177 2178 /* 2179 * The user sets the initiator ID, target and LUN IDs. 2180 */ 2181 io->io_hdr.nexus.targ_port = softc->ioctl_info.fe.targ_port; 2182 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2183 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2184 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2185 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2186 2187 retval = ctl_ioctl_submit_wait(io); 2188 2189 if (retval != 0) { 2190 ctl_free_io(io); 2191 break; 2192 } 2193 2194 memcpy((void *)addr, io, sizeof(*io)); 2195 2196 /* return this to our pool */ 2197 ctl_free_io(io); 2198 2199 break; 2200 } 2201 case CTL_ENABLE_PORT: 2202 case CTL_DISABLE_PORT: 2203 case CTL_SET_PORT_WWNS: { 2204 struct ctl_frontend *fe; 2205 struct ctl_port_entry *entry; 2206 2207 entry = (struct ctl_port_entry *)addr; 2208 2209 mtx_lock(&softc->ctl_lock); 2210 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2211 int action, done; 2212 2213 action = 0; 2214 done = 0; 2215 2216 if ((entry->port_type == CTL_PORT_NONE) 2217 && (entry->targ_port == fe->targ_port)) { 2218 /* 2219 * If the user only wants to enable or 2220 * disable or set WWNs on a specific port, 2221 * do the operation and we're done. 2222 */ 2223 action = 1; 2224 done = 1; 2225 } else if (entry->port_type & fe->port_type) { 2226 /* 2227 * Compare the user's type mask with the 2228 * particular frontend type to see if we 2229 * have a match. 2230 */ 2231 action = 1; 2232 done = 0; 2233 2234 /* 2235 * Make sure the user isn't trying to set 2236 * WWNs on multiple ports at the same time. 2237 */ 2238 if (cmd == CTL_SET_PORT_WWNS) { 2239 printf("%s: Can't set WWNs on " 2240 "multiple ports\n", __func__); 2241 retval = EINVAL; 2242 break; 2243 } 2244 } 2245 if (action != 0) { 2246 /* 2247 * XXX KDM we have to drop the lock here, 2248 * because the online/offline operations 2249 * can potentially block. We need to 2250 * reference count the frontends so they 2251 * can't go away, 2252 */ 2253 mtx_unlock(&softc->ctl_lock); 2254 2255 if (cmd == CTL_ENABLE_PORT) { 2256 struct ctl_lun *lun; 2257 2258 STAILQ_FOREACH(lun, &softc->lun_list, 2259 links) { 2260 fe->lun_enable(fe->targ_lun_arg, 2261 lun->target, 2262 lun->lun); 2263 } 2264 2265 ctl_frontend_online(fe); 2266 } else if (cmd == CTL_DISABLE_PORT) { 2267 struct ctl_lun *lun; 2268 2269 ctl_frontend_offline(fe); 2270 2271 STAILQ_FOREACH(lun, &softc->lun_list, 2272 links) { 2273 fe->lun_disable( 2274 fe->targ_lun_arg, 2275 lun->target, 2276 lun->lun); 2277 } 2278 } 2279 2280 mtx_lock(&softc->ctl_lock); 2281 2282 if (cmd == CTL_SET_PORT_WWNS) 2283 ctl_frontend_set_wwns(fe, 2284 (entry->flags & CTL_PORT_WWNN_VALID) ? 2285 1 : 0, entry->wwnn, 2286 (entry->flags & CTL_PORT_WWPN_VALID) ? 2287 1 : 0, entry->wwpn); 2288 } 2289 if (done != 0) 2290 break; 2291 } 2292 mtx_unlock(&softc->ctl_lock); 2293 break; 2294 } 2295 case CTL_GET_PORT_LIST: { 2296 struct ctl_frontend *fe; 2297 struct ctl_port_list *list; 2298 int i; 2299 2300 list = (struct ctl_port_list *)addr; 2301 2302 if (list->alloc_len != (list->alloc_num * 2303 sizeof(struct ctl_port_entry))) { 2304 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2305 "alloc_num %u * sizeof(struct ctl_port_entry) " 2306 "%zu\n", __func__, list->alloc_len, 2307 list->alloc_num, sizeof(struct ctl_port_entry)); 2308 retval = EINVAL; 2309 break; 2310 } 2311 list->fill_len = 0; 2312 list->fill_num = 0; 2313 list->dropped_num = 0; 2314 i = 0; 2315 mtx_lock(&softc->ctl_lock); 2316 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2317 struct ctl_port_entry entry, *list_entry; 2318 2319 if (list->fill_num >= list->alloc_num) { 2320 list->dropped_num++; 2321 continue; 2322 } 2323 2324 entry.port_type = fe->port_type; 2325 strlcpy(entry.port_name, fe->port_name, 2326 sizeof(entry.port_name)); 2327 entry.targ_port = fe->targ_port; 2328 entry.physical_port = fe->physical_port; 2329 entry.virtual_port = fe->virtual_port; 2330 entry.wwnn = fe->wwnn; 2331 entry.wwpn = fe->wwpn; 2332 if (fe->status & CTL_PORT_STATUS_ONLINE) 2333 entry.online = 1; 2334 else 2335 entry.online = 0; 2336 2337 list_entry = &list->entries[i]; 2338 2339 retval = copyout(&entry, list_entry, sizeof(entry)); 2340 if (retval != 0) { 2341 printf("%s: CTL_GET_PORT_LIST: copyout " 2342 "returned %d\n", __func__, retval); 2343 break; 2344 } 2345 i++; 2346 list->fill_num++; 2347 list->fill_len += sizeof(entry); 2348 } 2349 mtx_unlock(&softc->ctl_lock); 2350 2351 /* 2352 * If this is non-zero, we had a copyout fault, so there's 2353 * probably no point in attempting to set the status inside 2354 * the structure. 2355 */ 2356 if (retval != 0) 2357 break; 2358 2359 if (list->dropped_num > 0) 2360 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2361 else 2362 list->status = CTL_PORT_LIST_OK; 2363 break; 2364 } 2365 case CTL_DUMP_OOA: { 2366 struct ctl_lun *lun; 2367 union ctl_io *io; 2368 char printbuf[128]; 2369 struct sbuf sb; 2370 2371 mtx_lock(&softc->ctl_lock); 2372 printf("Dumping OOA queues:\n"); 2373 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2374 mtx_lock(&lun->lun_lock); 2375 for (io = (union ctl_io *)TAILQ_FIRST( 2376 &lun->ooa_queue); io != NULL; 2377 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2378 ooa_links)) { 2379 sbuf_new(&sb, printbuf, sizeof(printbuf), 2380 SBUF_FIXEDLEN); 2381 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2382 (intmax_t)lun->lun, 2383 io->scsiio.tag_num, 2384 (io->io_hdr.flags & 2385 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2386 (io->io_hdr.flags & 2387 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2388 (io->io_hdr.flags & 2389 CTL_FLAG_ABORT) ? " ABORT" : "", 2390 (io->io_hdr.flags & 2391 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2392 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2393 sbuf_finish(&sb); 2394 printf("%s\n", sbuf_data(&sb)); 2395 } 2396 mtx_unlock(&lun->lun_lock); 2397 } 2398 printf("OOA queues dump done\n"); 2399 mtx_unlock(&softc->ctl_lock); 2400 break; 2401 } 2402 case CTL_GET_OOA: { 2403 struct ctl_lun *lun; 2404 struct ctl_ooa *ooa_hdr; 2405 struct ctl_ooa_entry *entries; 2406 uint32_t cur_fill_num; 2407 2408 ooa_hdr = (struct ctl_ooa *)addr; 2409 2410 if ((ooa_hdr->alloc_len == 0) 2411 || (ooa_hdr->alloc_num == 0)) { 2412 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2413 "must be non-zero\n", __func__, 2414 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2415 retval = EINVAL; 2416 break; 2417 } 2418 2419 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2420 sizeof(struct ctl_ooa_entry))) { 2421 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2422 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2423 __func__, ooa_hdr->alloc_len, 2424 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2425 retval = EINVAL; 2426 break; 2427 } 2428 2429 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2430 if (entries == NULL) { 2431 printf("%s: could not allocate %d bytes for OOA " 2432 "dump\n", __func__, ooa_hdr->alloc_len); 2433 retval = ENOMEM; 2434 break; 2435 } 2436 2437 mtx_lock(&softc->ctl_lock); 2438 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2439 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2440 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2441 mtx_unlock(&softc->ctl_lock); 2442 free(entries, M_CTL); 2443 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2444 __func__, (uintmax_t)ooa_hdr->lun_num); 2445 retval = EINVAL; 2446 break; 2447 } 2448 2449 cur_fill_num = 0; 2450 2451 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2452 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2453 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2454 ooa_hdr, entries); 2455 if (retval != 0) 2456 break; 2457 } 2458 if (retval != 0) { 2459 mtx_unlock(&softc->ctl_lock); 2460 free(entries, M_CTL); 2461 break; 2462 } 2463 } else { 2464 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2465 2466 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2467 entries); 2468 } 2469 mtx_unlock(&softc->ctl_lock); 2470 2471 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2472 ooa_hdr->fill_len = ooa_hdr->fill_num * 2473 sizeof(struct ctl_ooa_entry); 2474 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2475 if (retval != 0) { 2476 printf("%s: error copying out %d bytes for OOA dump\n", 2477 __func__, ooa_hdr->fill_len); 2478 } 2479 2480 getbintime(&ooa_hdr->cur_bt); 2481 2482 if (cur_fill_num > ooa_hdr->alloc_num) { 2483 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2484 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2485 } else { 2486 ooa_hdr->dropped_num = 0; 2487 ooa_hdr->status = CTL_OOA_OK; 2488 } 2489 2490 free(entries, M_CTL); 2491 break; 2492 } 2493 case CTL_CHECK_OOA: { 2494 union ctl_io *io; 2495 struct ctl_lun *lun; 2496 struct ctl_ooa_info *ooa_info; 2497 2498 2499 ooa_info = (struct ctl_ooa_info *)addr; 2500 2501 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2502 ooa_info->status = CTL_OOA_INVALID_LUN; 2503 break; 2504 } 2505 mtx_lock(&softc->ctl_lock); 2506 lun = softc->ctl_luns[ooa_info->lun_id]; 2507 if (lun == NULL) { 2508 mtx_unlock(&softc->ctl_lock); 2509 ooa_info->status = CTL_OOA_INVALID_LUN; 2510 break; 2511 } 2512 mtx_lock(&lun->lun_lock); 2513 mtx_unlock(&softc->ctl_lock); 2514 ooa_info->num_entries = 0; 2515 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2516 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2517 &io->io_hdr, ooa_links)) { 2518 ooa_info->num_entries++; 2519 } 2520 mtx_unlock(&lun->lun_lock); 2521 2522 ooa_info->status = CTL_OOA_SUCCESS; 2523 2524 break; 2525 } 2526 case CTL_HARD_START: 2527 case CTL_HARD_STOP: { 2528 struct ctl_fe_ioctl_startstop_info ss_info; 2529 struct cfi_metatask *metatask; 2530 struct mtx hs_mtx; 2531 2532 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2533 2534 cv_init(&ss_info.sem, "hard start/stop cv" ); 2535 2536 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2537 if (metatask == NULL) { 2538 retval = ENOMEM; 2539 mtx_destroy(&hs_mtx); 2540 break; 2541 } 2542 2543 if (cmd == CTL_HARD_START) 2544 metatask->tasktype = CFI_TASK_STARTUP; 2545 else 2546 metatask->tasktype = CFI_TASK_SHUTDOWN; 2547 2548 metatask->callback = ctl_ioctl_hard_startstop_callback; 2549 metatask->callback_arg = &ss_info; 2550 2551 cfi_action(metatask); 2552 2553 /* Wait for the callback */ 2554 mtx_lock(&hs_mtx); 2555 cv_wait_sig(&ss_info.sem, &hs_mtx); 2556 mtx_unlock(&hs_mtx); 2557 2558 /* 2559 * All information has been copied from the metatask by the 2560 * time cv_broadcast() is called, so we free the metatask here. 2561 */ 2562 cfi_free_metatask(metatask); 2563 2564 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2565 2566 mtx_destroy(&hs_mtx); 2567 break; 2568 } 2569 case CTL_BBRREAD: { 2570 struct ctl_bbrread_info *bbr_info; 2571 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2572 struct mtx bbr_mtx; 2573 struct cfi_metatask *metatask; 2574 2575 bbr_info = (struct ctl_bbrread_info *)addr; 2576 2577 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2578 2579 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2580 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2581 2582 fe_bbr_info.bbr_info = bbr_info; 2583 fe_bbr_info.lock = &bbr_mtx; 2584 2585 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2586 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2587 2588 if (metatask == NULL) { 2589 mtx_destroy(&bbr_mtx); 2590 cv_destroy(&fe_bbr_info.sem); 2591 retval = ENOMEM; 2592 break; 2593 } 2594 metatask->tasktype = CFI_TASK_BBRREAD; 2595 metatask->callback = ctl_ioctl_bbrread_callback; 2596 metatask->callback_arg = &fe_bbr_info; 2597 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2598 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2599 metatask->taskinfo.bbrread.len = bbr_info->len; 2600 2601 cfi_action(metatask); 2602 2603 mtx_lock(&bbr_mtx); 2604 while (fe_bbr_info.wakeup_done == 0) 2605 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2606 mtx_unlock(&bbr_mtx); 2607 2608 bbr_info->status = metatask->status; 2609 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2610 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2611 memcpy(&bbr_info->sense_data, 2612 &metatask->taskinfo.bbrread.sense_data, 2613 ctl_min(sizeof(bbr_info->sense_data), 2614 sizeof(metatask->taskinfo.bbrread.sense_data))); 2615 2616 cfi_free_metatask(metatask); 2617 2618 mtx_destroy(&bbr_mtx); 2619 cv_destroy(&fe_bbr_info.sem); 2620 2621 break; 2622 } 2623 case CTL_DELAY_IO: { 2624 struct ctl_io_delay_info *delay_info; 2625#ifdef CTL_IO_DELAY 2626 struct ctl_lun *lun; 2627#endif /* CTL_IO_DELAY */ 2628 2629 delay_info = (struct ctl_io_delay_info *)addr; 2630 2631#ifdef CTL_IO_DELAY 2632 mtx_lock(&softc->ctl_lock); 2633 2634 if ((delay_info->lun_id > CTL_MAX_LUNS) 2635 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2636 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2637 } else { 2638 lun = softc->ctl_luns[delay_info->lun_id]; 2639 mtx_lock(&lun->lun_lock); 2640 2641 delay_info->status = CTL_DELAY_STATUS_OK; 2642 2643 switch (delay_info->delay_type) { 2644 case CTL_DELAY_TYPE_CONT: 2645 break; 2646 case CTL_DELAY_TYPE_ONESHOT: 2647 break; 2648 default: 2649 delay_info->status = 2650 CTL_DELAY_STATUS_INVALID_TYPE; 2651 break; 2652 } 2653 2654 switch (delay_info->delay_loc) { 2655 case CTL_DELAY_LOC_DATAMOVE: 2656 lun->delay_info.datamove_type = 2657 delay_info->delay_type; 2658 lun->delay_info.datamove_delay = 2659 delay_info->delay_secs; 2660 break; 2661 case CTL_DELAY_LOC_DONE: 2662 lun->delay_info.done_type = 2663 delay_info->delay_type; 2664 lun->delay_info.done_delay = 2665 delay_info->delay_secs; 2666 break; 2667 default: 2668 delay_info->status = 2669 CTL_DELAY_STATUS_INVALID_LOC; 2670 break; 2671 } 2672 mtx_unlock(&lun->lun_lock); 2673 } 2674 2675 mtx_unlock(&softc->ctl_lock); 2676#else 2677 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2678#endif /* CTL_IO_DELAY */ 2679 break; 2680 } 2681 case CTL_REALSYNC_SET: { 2682 int *syncstate; 2683 2684 syncstate = (int *)addr; 2685 2686 mtx_lock(&softc->ctl_lock); 2687 switch (*syncstate) { 2688 case 0: 2689 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2690 break; 2691 case 1: 2692 softc->flags |= CTL_FLAG_REAL_SYNC; 2693 break; 2694 default: 2695 retval = EINVAL; 2696 break; 2697 } 2698 mtx_unlock(&softc->ctl_lock); 2699 break; 2700 } 2701 case CTL_REALSYNC_GET: { 2702 int *syncstate; 2703 2704 syncstate = (int*)addr; 2705 2706 mtx_lock(&softc->ctl_lock); 2707 if (softc->flags & CTL_FLAG_REAL_SYNC) 2708 *syncstate = 1; 2709 else 2710 *syncstate = 0; 2711 mtx_unlock(&softc->ctl_lock); 2712 2713 break; 2714 } 2715 case CTL_SETSYNC: 2716 case CTL_GETSYNC: { 2717 struct ctl_sync_info *sync_info; 2718 struct ctl_lun *lun; 2719 2720 sync_info = (struct ctl_sync_info *)addr; 2721 2722 mtx_lock(&softc->ctl_lock); 2723 lun = softc->ctl_luns[sync_info->lun_id]; 2724 if (lun == NULL) { 2725 mtx_unlock(&softc->ctl_lock); 2726 sync_info->status = CTL_GS_SYNC_NO_LUN; 2727 } 2728 /* 2729 * Get or set the sync interval. We're not bounds checking 2730 * in the set case, hopefully the user won't do something 2731 * silly. 2732 */ 2733 mtx_lock(&lun->lun_lock); 2734 mtx_unlock(&softc->ctl_lock); 2735 if (cmd == CTL_GETSYNC) 2736 sync_info->sync_interval = lun->sync_interval; 2737 else 2738 lun->sync_interval = sync_info->sync_interval; 2739 mtx_unlock(&lun->lun_lock); 2740 2741 sync_info->status = CTL_GS_SYNC_OK; 2742 2743 break; 2744 } 2745 case CTL_GETSTATS: { 2746 struct ctl_stats *stats; 2747 struct ctl_lun *lun; 2748 int i; 2749 2750 stats = (struct ctl_stats *)addr; 2751 2752 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2753 stats->alloc_len) { 2754 stats->status = CTL_SS_NEED_MORE_SPACE; 2755 stats->num_luns = softc->num_luns; 2756 break; 2757 } 2758 /* 2759 * XXX KDM no locking here. If the LUN list changes, 2760 * things can blow up. 2761 */ 2762 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2763 i++, lun = STAILQ_NEXT(lun, links)) { 2764 retval = copyout(&lun->stats, &stats->lun_stats[i], 2765 sizeof(lun->stats)); 2766 if (retval != 0) 2767 break; 2768 } 2769 stats->num_luns = softc->num_luns; 2770 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2771 softc->num_luns; 2772 stats->status = CTL_SS_OK; 2773#ifdef CTL_TIME_IO 2774 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2775#else 2776 stats->flags = CTL_STATS_FLAG_NONE; 2777#endif 2778 getnanouptime(&stats->timestamp); 2779 break; 2780 } 2781 case CTL_ERROR_INJECT: { 2782 struct ctl_error_desc *err_desc, *new_err_desc; 2783 struct ctl_lun *lun; 2784 2785 err_desc = (struct ctl_error_desc *)addr; 2786 2787 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2788 M_WAITOK | M_ZERO); 2789 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2790 2791 mtx_lock(&softc->ctl_lock); 2792 lun = softc->ctl_luns[err_desc->lun_id]; 2793 if (lun == NULL) { 2794 mtx_unlock(&softc->ctl_lock); 2795 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2796 __func__, (uintmax_t)err_desc->lun_id); 2797 retval = EINVAL; 2798 break; 2799 } 2800 mtx_lock(&lun->lun_lock); 2801 mtx_unlock(&softc->ctl_lock); 2802 2803 /* 2804 * We could do some checking here to verify the validity 2805 * of the request, but given the complexity of error 2806 * injection requests, the checking logic would be fairly 2807 * complex. 2808 * 2809 * For now, if the request is invalid, it just won't get 2810 * executed and might get deleted. 2811 */ 2812 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2813 2814 /* 2815 * XXX KDM check to make sure the serial number is unique, 2816 * in case we somehow manage to wrap. That shouldn't 2817 * happen for a very long time, but it's the right thing to 2818 * do. 2819 */ 2820 new_err_desc->serial = lun->error_serial; 2821 err_desc->serial = lun->error_serial; 2822 lun->error_serial++; 2823 2824 mtx_unlock(&lun->lun_lock); 2825 break; 2826 } 2827 case CTL_ERROR_INJECT_DELETE: { 2828 struct ctl_error_desc *delete_desc, *desc, *desc2; 2829 struct ctl_lun *lun; 2830 int delete_done; 2831 2832 delete_desc = (struct ctl_error_desc *)addr; 2833 delete_done = 0; 2834 2835 mtx_lock(&softc->ctl_lock); 2836 lun = softc->ctl_luns[delete_desc->lun_id]; 2837 if (lun == NULL) { 2838 mtx_unlock(&softc->ctl_lock); 2839 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2840 __func__, (uintmax_t)delete_desc->lun_id); 2841 retval = EINVAL; 2842 break; 2843 } 2844 mtx_lock(&lun->lun_lock); 2845 mtx_unlock(&softc->ctl_lock); 2846 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2847 if (desc->serial != delete_desc->serial) 2848 continue; 2849 2850 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2851 links); 2852 free(desc, M_CTL); 2853 delete_done = 1; 2854 } 2855 mtx_unlock(&lun->lun_lock); 2856 if (delete_done == 0) { 2857 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2858 "error serial %ju on LUN %u\n", __func__, 2859 delete_desc->serial, delete_desc->lun_id); 2860 retval = EINVAL; 2861 break; 2862 } 2863 break; 2864 } 2865 case CTL_DUMP_STRUCTS: { 2866 int i, j, k; 2867 struct ctl_frontend *fe; 2868 2869 printf("CTL IID to WWPN map start:\n"); 2870 for (i = 0; i < CTL_MAX_PORTS; i++) { 2871 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2872 if (softc->wwpn_iid[i][j].in_use == 0) 2873 continue; 2874 2875 printf("port %d iid %u WWPN %#jx\n", 2876 softc->wwpn_iid[i][j].port, 2877 softc->wwpn_iid[i][j].iid, 2878 (uintmax_t)softc->wwpn_iid[i][j].wwpn); 2879 } 2880 } 2881 printf("CTL IID to WWPN map end\n"); 2882 printf("CTL Persistent Reservation information start:\n"); 2883 for (i = 0; i < CTL_MAX_LUNS; i++) { 2884 struct ctl_lun *lun; 2885 2886 lun = softc->ctl_luns[i]; 2887 2888 if ((lun == NULL) 2889 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2890 continue; 2891 2892 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2893 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2894 if (lun->per_res[j+k].registered == 0) 2895 continue; 2896 printf("LUN %d port %d iid %d key " 2897 "%#jx\n", i, j, k, 2898 (uintmax_t)scsi_8btou64( 2899 lun->per_res[j+k].res_key.key)); 2900 } 2901 } 2902 } 2903 printf("CTL Persistent Reservation information end\n"); 2904 printf("CTL Frontends:\n"); 2905 /* 2906 * XXX KDM calling this without a lock. We'd likely want 2907 * to drop the lock before calling the frontend's dump 2908 * routine anyway. 2909 */ 2910 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2911 printf("Frontend %s Type %u pport %d vport %d WWNN " 2912 "%#jx WWPN %#jx\n", fe->port_name, fe->port_type, 2913 fe->physical_port, fe->virtual_port, 2914 (uintmax_t)fe->wwnn, (uintmax_t)fe->wwpn); 2915 2916 /* 2917 * Frontends are not required to support the dump 2918 * routine. 2919 */ 2920 if (fe->fe_dump == NULL) 2921 continue; 2922 2923 fe->fe_dump(); 2924 } 2925 printf("CTL Frontend information end\n"); 2926 break; 2927 } 2928 case CTL_LUN_REQ: { 2929 struct ctl_lun_req *lun_req; 2930 struct ctl_backend_driver *backend; 2931 2932 lun_req = (struct ctl_lun_req *)addr; 2933 2934 backend = ctl_backend_find(lun_req->backend); 2935 if (backend == NULL) { 2936 lun_req->status = CTL_LUN_ERROR; 2937 snprintf(lun_req->error_str, 2938 sizeof(lun_req->error_str), 2939 "Backend \"%s\" not found.", 2940 lun_req->backend); 2941 break; 2942 } 2943 if (lun_req->num_be_args > 0) { 2944 lun_req->kern_be_args = ctl_copyin_args( 2945 lun_req->num_be_args, 2946 lun_req->be_args, 2947 lun_req->error_str, 2948 sizeof(lun_req->error_str)); 2949 if (lun_req->kern_be_args == NULL) { 2950 lun_req->status = CTL_LUN_ERROR; 2951 break; 2952 } 2953 } 2954 2955 retval = backend->ioctl(dev, cmd, addr, flag, td); 2956 2957 if (lun_req->num_be_args > 0) { 2958 ctl_free_args(lun_req->num_be_args, 2959 lun_req->kern_be_args); 2960 } 2961 break; 2962 } 2963 case CTL_LUN_LIST: { 2964 struct sbuf *sb; 2965 struct ctl_lun *lun; 2966 struct ctl_lun_list *list; 2967 struct ctl_be_lun_option *opt; 2968 2969 list = (struct ctl_lun_list *)addr; 2970 2971 /* 2972 * Allocate a fixed length sbuf here, based on the length 2973 * of the user's buffer. We could allocate an auto-extending 2974 * buffer, and then tell the user how much larger our 2975 * amount of data is than his buffer, but that presents 2976 * some problems: 2977 * 2978 * 1. The sbuf(9) routines use a blocking malloc, and so 2979 * we can't hold a lock while calling them with an 2980 * auto-extending buffer. 2981 * 2982 * 2. There is not currently a LUN reference counting 2983 * mechanism, outside of outstanding transactions on 2984 * the LUN's OOA queue. So a LUN could go away on us 2985 * while we're getting the LUN number, backend-specific 2986 * information, etc. Thus, given the way things 2987 * currently work, we need to hold the CTL lock while 2988 * grabbing LUN information. 2989 * 2990 * So, from the user's standpoint, the best thing to do is 2991 * allocate what he thinks is a reasonable buffer length, 2992 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 2993 * double the buffer length and try again. (And repeat 2994 * that until he succeeds.) 2995 */ 2996 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 2997 if (sb == NULL) { 2998 list->status = CTL_LUN_LIST_ERROR; 2999 snprintf(list->error_str, sizeof(list->error_str), 3000 "Unable to allocate %d bytes for LUN list", 3001 list->alloc_len); 3002 break; 3003 } 3004 3005 sbuf_printf(sb, "<ctllunlist>\n"); 3006 3007 mtx_lock(&softc->ctl_lock); 3008 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3009 mtx_lock(&lun->lun_lock); 3010 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3011 (uintmax_t)lun->lun); 3012 3013 /* 3014 * Bail out as soon as we see that we've overfilled 3015 * the buffer. 3016 */ 3017 if (retval != 0) 3018 break; 3019 3020 retval = sbuf_printf(sb, "<backend_type>%s" 3021 "</backend_type>\n", 3022 (lun->backend == NULL) ? "none" : 3023 lun->backend->name); 3024 3025 if (retval != 0) 3026 break; 3027 3028 retval = sbuf_printf(sb, "<lun_type>%d</lun_type>\n", 3029 lun->be_lun->lun_type); 3030 3031 if (retval != 0) 3032 break; 3033 3034 if (lun->backend == NULL) { 3035 retval = sbuf_printf(sb, "</lun>\n"); 3036 if (retval != 0) 3037 break; 3038 continue; 3039 } 3040 3041 retval = sbuf_printf(sb, "<size>%ju</size>\n", 3042 (lun->be_lun->maxlba > 0) ? 3043 lun->be_lun->maxlba + 1 : 0); 3044 3045 if (retval != 0) 3046 break; 3047 3048 retval = sbuf_printf(sb, "<blocksize>%u</blocksize>\n", 3049 lun->be_lun->blocksize); 3050 3051 if (retval != 0) 3052 break; 3053 3054 retval = sbuf_printf(sb, "<serial_number>"); 3055 3056 if (retval != 0) 3057 break; 3058 3059 retval = ctl_sbuf_printf_esc(sb, 3060 lun->be_lun->serial_num); 3061 3062 if (retval != 0) 3063 break; 3064 3065 retval = sbuf_printf(sb, "</serial_number>\n"); 3066 3067 if (retval != 0) 3068 break; 3069 3070 retval = sbuf_printf(sb, "<device_id>"); 3071 3072 if (retval != 0) 3073 break; 3074 3075 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3076 3077 if (retval != 0) 3078 break; 3079 3080 retval = sbuf_printf(sb, "</device_id>\n"); 3081 3082 if (retval != 0) 3083 break; 3084 3085 if (lun->backend->lun_info != NULL) { 3086 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3087 if (retval != 0) 3088 break; 3089 } 3090 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3091 retval = sbuf_printf(sb, "<%s>%s</%s>", opt->name, opt->value, opt->name); 3092 if (retval != 0) 3093 break; 3094 } 3095 3096 retval = sbuf_printf(sb, "</lun>\n"); 3097 3098 if (retval != 0) 3099 break; 3100 mtx_unlock(&lun->lun_lock); 3101 } 3102 if (lun != NULL) 3103 mtx_unlock(&lun->lun_lock); 3104 mtx_unlock(&softc->ctl_lock); 3105 3106 if ((retval != 0) 3107 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3108 retval = 0; 3109 sbuf_delete(sb); 3110 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3111 snprintf(list->error_str, sizeof(list->error_str), 3112 "Out of space, %d bytes is too small", 3113 list->alloc_len); 3114 break; 3115 } 3116 3117 sbuf_finish(sb); 3118 3119 retval = copyout(sbuf_data(sb), list->lun_xml, 3120 sbuf_len(sb) + 1); 3121 3122 list->fill_len = sbuf_len(sb) + 1; 3123 list->status = CTL_LUN_LIST_OK; 3124 sbuf_delete(sb); 3125 break; 3126 } 3127 case CTL_ISCSI: { 3128 struct ctl_iscsi *ci; 3129 struct ctl_frontend *fe; 3130 3131 ci = (struct ctl_iscsi *)addr; 3132 3133 mtx_lock(&softc->ctl_lock); 3134 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3135 if (strcmp(fe->port_name, "iscsi") == 0) 3136 break; 3137 } 3138 mtx_unlock(&softc->ctl_lock); 3139 3140 if (fe == NULL) { 3141 ci->status = CTL_ISCSI_ERROR; 3142 snprintf(ci->error_str, sizeof(ci->error_str), "Backend \"iscsi\" not found."); 3143 break; 3144 } 3145 3146 retval = fe->ioctl(dev, cmd, addr, flag, td); 3147 break; 3148 } 3149 default: { 3150 /* XXX KDM should we fix this? */ 3151#if 0 3152 struct ctl_backend_driver *backend; 3153 unsigned int type; 3154 int found; 3155 3156 found = 0; 3157 3158 /* 3159 * We encode the backend type as the ioctl type for backend 3160 * ioctls. So parse it out here, and then search for a 3161 * backend of this type. 3162 */ 3163 type = _IOC_TYPE(cmd); 3164 3165 STAILQ_FOREACH(backend, &softc->be_list, links) { 3166 if (backend->type == type) { 3167 found = 1; 3168 break; 3169 } 3170 } 3171 if (found == 0) { 3172 printf("ctl: unknown ioctl command %#lx or backend " 3173 "%d\n", cmd, type); 3174 retval = EINVAL; 3175 break; 3176 } 3177 retval = backend->ioctl(dev, cmd, addr, flag, td); 3178#endif 3179 retval = ENOTTY; 3180 break; 3181 } 3182 } 3183 return (retval); 3184} 3185 3186uint32_t 3187ctl_get_initindex(struct ctl_nexus *nexus) 3188{ 3189 if (nexus->targ_port < CTL_MAX_PORTS) 3190 return (nexus->initid.id + 3191 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3192 else 3193 return (nexus->initid.id + 3194 ((nexus->targ_port - CTL_MAX_PORTS) * 3195 CTL_MAX_INIT_PER_PORT)); 3196} 3197 3198uint32_t 3199ctl_get_resindex(struct ctl_nexus *nexus) 3200{ 3201 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3202} 3203 3204uint32_t 3205ctl_port_idx(int port_num) 3206{ 3207 if (port_num < CTL_MAX_PORTS) 3208 return(port_num); 3209 else 3210 return(port_num - CTL_MAX_PORTS); 3211} 3212 3213/* 3214 * Note: This only works for bitmask sizes that are at least 32 bits, and 3215 * that are a power of 2. 3216 */ 3217int 3218ctl_ffz(uint32_t *mask, uint32_t size) 3219{ 3220 uint32_t num_chunks, num_pieces; 3221 int i, j; 3222 3223 num_chunks = (size >> 5); 3224 if (num_chunks == 0) 3225 num_chunks++; 3226 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3227 3228 for (i = 0; i < num_chunks; i++) { 3229 for (j = 0; j < num_pieces; j++) { 3230 if ((mask[i] & (1 << j)) == 0) 3231 return ((i << 5) + j); 3232 } 3233 } 3234 3235 return (-1); 3236} 3237 3238int 3239ctl_set_mask(uint32_t *mask, uint32_t bit) 3240{ 3241 uint32_t chunk, piece; 3242 3243 chunk = bit >> 5; 3244 piece = bit % (sizeof(uint32_t) * 8); 3245 3246 if ((mask[chunk] & (1 << piece)) != 0) 3247 return (-1); 3248 else 3249 mask[chunk] |= (1 << piece); 3250 3251 return (0); 3252} 3253 3254int 3255ctl_clear_mask(uint32_t *mask, uint32_t bit) 3256{ 3257 uint32_t chunk, piece; 3258 3259 chunk = bit >> 5; 3260 piece = bit % (sizeof(uint32_t) * 8); 3261 3262 if ((mask[chunk] & (1 << piece)) == 0) 3263 return (-1); 3264 else 3265 mask[chunk] &= ~(1 << piece); 3266 3267 return (0); 3268} 3269 3270int 3271ctl_is_set(uint32_t *mask, uint32_t bit) 3272{ 3273 uint32_t chunk, piece; 3274 3275 chunk = bit >> 5; 3276 piece = bit % (sizeof(uint32_t) * 8); 3277 3278 if ((mask[chunk] & (1 << piece)) == 0) 3279 return (0); 3280 else 3281 return (1); 3282} 3283 3284#ifdef unused 3285/* 3286 * The bus, target and lun are optional, they can be filled in later. 3287 * can_wait is used to determine whether we can wait on the malloc or not. 3288 */ 3289union ctl_io* 3290ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3291 uint32_t targ_lun, int can_wait) 3292{ 3293 union ctl_io *io; 3294 3295 if (can_wait) 3296 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3297 else 3298 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3299 3300 if (io != NULL) { 3301 io->io_hdr.io_type = io_type; 3302 io->io_hdr.targ_port = targ_port; 3303 /* 3304 * XXX KDM this needs to change/go away. We need to move 3305 * to a preallocated pool of ctl_scsiio structures. 3306 */ 3307 io->io_hdr.nexus.targ_target.id = targ_target; 3308 io->io_hdr.nexus.targ_lun = targ_lun; 3309 } 3310 3311 return (io); 3312} 3313 3314void 3315ctl_kfree_io(union ctl_io *io) 3316{ 3317 free(io, M_CTL); 3318} 3319#endif /* unused */ 3320 3321/* 3322 * ctl_softc, pool_type, total_ctl_io are passed in. 3323 * npool is passed out. 3324 */ 3325int 3326ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3327 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3328{ 3329 uint32_t i; 3330 union ctl_io *cur_io, *next_io; 3331 struct ctl_io_pool *pool; 3332 int retval; 3333 3334 retval = 0; 3335 3336 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3337 M_NOWAIT | M_ZERO); 3338 if (pool == NULL) { 3339 retval = ENOMEM; 3340 goto bailout; 3341 } 3342 3343 pool->type = pool_type; 3344 pool->ctl_softc = ctl_softc; 3345 3346 mtx_lock(&ctl_softc->pool_lock); 3347 pool->id = ctl_softc->cur_pool_id++; 3348 mtx_unlock(&ctl_softc->pool_lock); 3349 3350 pool->flags = CTL_POOL_FLAG_NONE; 3351 pool->refcount = 1; /* Reference for validity. */ 3352 STAILQ_INIT(&pool->free_queue); 3353 3354 /* 3355 * XXX KDM other options here: 3356 * - allocate a page at a time 3357 * - allocate one big chunk of memory. 3358 * Page allocation might work well, but would take a little more 3359 * tracking. 3360 */ 3361 for (i = 0; i < total_ctl_io; i++) { 3362 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3363 M_NOWAIT); 3364 if (cur_io == NULL) { 3365 retval = ENOMEM; 3366 break; 3367 } 3368 cur_io->io_hdr.pool = pool; 3369 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3370 pool->total_ctl_io++; 3371 pool->free_ctl_io++; 3372 } 3373 3374 if (retval != 0) { 3375 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3376 cur_io != NULL; cur_io = next_io) { 3377 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3378 links); 3379 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3380 ctl_io_hdr, links); 3381 free(cur_io, M_CTLIO); 3382 } 3383 3384 free(pool, M_CTL); 3385 goto bailout; 3386 } 3387 mtx_lock(&ctl_softc->pool_lock); 3388 ctl_softc->num_pools++; 3389 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3390 /* 3391 * Increment our usage count if this is an external consumer, so we 3392 * can't get unloaded until the external consumer (most likely a 3393 * FETD) unloads and frees his pool. 3394 * 3395 * XXX KDM will this increment the caller's module use count, or 3396 * mine? 3397 */ 3398#if 0 3399 if ((pool_type != CTL_POOL_EMERGENCY) 3400 && (pool_type != CTL_POOL_INTERNAL) 3401 && (pool_type != CTL_POOL_IOCTL) 3402 && (pool_type != CTL_POOL_4OTHERSC)) 3403 MOD_INC_USE_COUNT; 3404#endif 3405 3406 mtx_unlock(&ctl_softc->pool_lock); 3407 3408 *npool = pool; 3409 3410bailout: 3411 3412 return (retval); 3413} 3414 3415static int 3416ctl_pool_acquire(struct ctl_io_pool *pool) 3417{ 3418 3419 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3420 3421 if (pool->flags & CTL_POOL_FLAG_INVALID) 3422 return (EINVAL); 3423 3424 pool->refcount++; 3425 3426 return (0); 3427} 3428 3429static void 3430ctl_pool_release(struct ctl_io_pool *pool) 3431{ 3432 struct ctl_softc *ctl_softc = pool->ctl_softc; 3433 union ctl_io *io; 3434 3435 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3436 3437 if (--pool->refcount != 0) 3438 return; 3439 3440 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3441 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3442 links); 3443 free(io, M_CTLIO); 3444 } 3445 3446 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3447 ctl_softc->num_pools--; 3448 3449 /* 3450 * XXX KDM will this decrement the caller's usage count or mine? 3451 */ 3452#if 0 3453 if ((pool->type != CTL_POOL_EMERGENCY) 3454 && (pool->type != CTL_POOL_INTERNAL) 3455 && (pool->type != CTL_POOL_IOCTL)) 3456 MOD_DEC_USE_COUNT; 3457#endif 3458 3459 free(pool, M_CTL); 3460} 3461 3462void 3463ctl_pool_free(struct ctl_io_pool *pool) 3464{ 3465 struct ctl_softc *ctl_softc; 3466 3467 if (pool == NULL) 3468 return; 3469 3470 ctl_softc = pool->ctl_softc; 3471 mtx_lock(&ctl_softc->pool_lock); 3472 pool->flags |= CTL_POOL_FLAG_INVALID; 3473 ctl_pool_release(pool); 3474 mtx_unlock(&ctl_softc->pool_lock); 3475} 3476 3477/* 3478 * This routine does not block (except for spinlocks of course). 3479 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3480 * possible. 3481 */ 3482union ctl_io * 3483ctl_alloc_io(void *pool_ref) 3484{ 3485 union ctl_io *io; 3486 struct ctl_softc *ctl_softc; 3487 struct ctl_io_pool *pool, *npool; 3488 struct ctl_io_pool *emergency_pool; 3489 3490 pool = (struct ctl_io_pool *)pool_ref; 3491 3492 if (pool == NULL) { 3493 printf("%s: pool is NULL\n", __func__); 3494 return (NULL); 3495 } 3496 3497 emergency_pool = NULL; 3498 3499 ctl_softc = pool->ctl_softc; 3500 3501 mtx_lock(&ctl_softc->pool_lock); 3502 /* 3503 * First, try to get the io structure from the user's pool. 3504 */ 3505 if (ctl_pool_acquire(pool) == 0) { 3506 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3507 if (io != NULL) { 3508 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3509 pool->total_allocated++; 3510 pool->free_ctl_io--; 3511 mtx_unlock(&ctl_softc->pool_lock); 3512 return (io); 3513 } else 3514 ctl_pool_release(pool); 3515 } 3516 /* 3517 * If he doesn't have any io structures left, search for an 3518 * emergency pool and grab one from there. 3519 */ 3520 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3521 if (npool->type != CTL_POOL_EMERGENCY) 3522 continue; 3523 3524 if (ctl_pool_acquire(npool) != 0) 3525 continue; 3526 3527 emergency_pool = npool; 3528 3529 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3530 if (io != NULL) { 3531 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3532 npool->total_allocated++; 3533 npool->free_ctl_io--; 3534 mtx_unlock(&ctl_softc->pool_lock); 3535 return (io); 3536 } else 3537 ctl_pool_release(npool); 3538 } 3539 3540 /* Drop the spinlock before we malloc */ 3541 mtx_unlock(&ctl_softc->pool_lock); 3542 3543 /* 3544 * The emergency pool (if it exists) didn't have one, so try an 3545 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3546 */ 3547 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3548 if (io != NULL) { 3549 /* 3550 * If the emergency pool exists but is empty, add this 3551 * ctl_io to its list when it gets freed. 3552 */ 3553 if (emergency_pool != NULL) { 3554 mtx_lock(&ctl_softc->pool_lock); 3555 if (ctl_pool_acquire(emergency_pool) == 0) { 3556 io->io_hdr.pool = emergency_pool; 3557 emergency_pool->total_ctl_io++; 3558 /* 3559 * Need to bump this, otherwise 3560 * total_allocated and total_freed won't 3561 * match when we no longer have anything 3562 * outstanding. 3563 */ 3564 emergency_pool->total_allocated++; 3565 } 3566 mtx_unlock(&ctl_softc->pool_lock); 3567 } else 3568 io->io_hdr.pool = NULL; 3569 } 3570 3571 return (io); 3572} 3573 3574void 3575ctl_free_io(union ctl_io *io) 3576{ 3577 if (io == NULL) 3578 return; 3579 3580 /* 3581 * If this ctl_io has a pool, return it to that pool. 3582 */ 3583 if (io->io_hdr.pool != NULL) { 3584 struct ctl_io_pool *pool; 3585 3586 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3587 mtx_lock(&pool->ctl_softc->pool_lock); 3588 io->io_hdr.io_type = 0xff; 3589 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3590 pool->total_freed++; 3591 pool->free_ctl_io++; 3592 ctl_pool_release(pool); 3593 mtx_unlock(&pool->ctl_softc->pool_lock); 3594 } else { 3595 /* 3596 * Otherwise, just free it. We probably malloced it and 3597 * the emergency pool wasn't available. 3598 */ 3599 free(io, M_CTLIO); 3600 } 3601 3602} 3603 3604void 3605ctl_zero_io(union ctl_io *io) 3606{ 3607 void *pool_ref; 3608 3609 if (io == NULL) 3610 return; 3611 3612 /* 3613 * May need to preserve linked list pointers at some point too. 3614 */ 3615 pool_ref = io->io_hdr.pool; 3616 3617 memset(io, 0, sizeof(*io)); 3618 3619 io->io_hdr.pool = pool_ref; 3620} 3621 3622/* 3623 * This routine is currently used for internal copies of ctl_ios that need 3624 * to persist for some reason after we've already returned status to the 3625 * FETD. (Thus the flag set.) 3626 * 3627 * XXX XXX 3628 * Note that this makes a blind copy of all fields in the ctl_io, except 3629 * for the pool reference. This includes any memory that has been 3630 * allocated! That memory will no longer be valid after done has been 3631 * called, so this would be VERY DANGEROUS for command that actually does 3632 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3633 * start and stop commands, which don't transfer any data, so this is not a 3634 * problem. If it is used for anything else, the caller would also need to 3635 * allocate data buffer space and this routine would need to be modified to 3636 * copy the data buffer(s) as well. 3637 */ 3638void 3639ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3640{ 3641 void *pool_ref; 3642 3643 if ((src == NULL) 3644 || (dest == NULL)) 3645 return; 3646 3647 /* 3648 * May need to preserve linked list pointers at some point too. 3649 */ 3650 pool_ref = dest->io_hdr.pool; 3651 3652 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3653 3654 dest->io_hdr.pool = pool_ref; 3655 /* 3656 * We need to know that this is an internal copy, and doesn't need 3657 * to get passed back to the FETD that allocated it. 3658 */ 3659 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3660} 3661 3662#ifdef NEEDTOPORT 3663static void 3664ctl_update_power_subpage(struct copan_power_subpage *page) 3665{ 3666 int num_luns, num_partitions, config_type; 3667 struct ctl_softc *softc; 3668 cs_BOOL_t aor_present, shelf_50pct_power; 3669 cs_raidset_personality_t rs_type; 3670 int max_active_luns; 3671 3672 softc = control_softc; 3673 3674 /* subtract out the processor LUN */ 3675 num_luns = softc->num_luns - 1; 3676 /* 3677 * Default to 7 LUNs active, which was the only number we allowed 3678 * in the past. 3679 */ 3680 max_active_luns = 7; 3681 3682 num_partitions = config_GetRsPartitionInfo(); 3683 config_type = config_GetConfigType(); 3684 shelf_50pct_power = config_GetShelfPowerMode(); 3685 aor_present = config_IsAorRsPresent(); 3686 3687 rs_type = ddb_GetRsRaidType(1); 3688 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3689 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3690 EPRINT(0, "Unsupported RS type %d!", rs_type); 3691 } 3692 3693 3694 page->total_luns = num_luns; 3695 3696 switch (config_type) { 3697 case 40: 3698 /* 3699 * In a 40 drive configuration, it doesn't matter what DC 3700 * cards we have, whether we have AOR enabled or not, 3701 * partitioning or not, or what type of RAIDset we have. 3702 * In that scenario, we can power up every LUN we present 3703 * to the user. 3704 */ 3705 max_active_luns = num_luns; 3706 3707 break; 3708 case 64: 3709 if (shelf_50pct_power == CS_FALSE) { 3710 /* 25% power */ 3711 if (aor_present == CS_TRUE) { 3712 if (rs_type == 3713 CS_RAIDSET_PERSONALITY_RAID5) { 3714 max_active_luns = 7; 3715 } else if (rs_type == 3716 CS_RAIDSET_PERSONALITY_RAID1){ 3717 max_active_luns = 14; 3718 } else { 3719 /* XXX KDM now what?? */ 3720 } 3721 } else { 3722 if (rs_type == 3723 CS_RAIDSET_PERSONALITY_RAID5) { 3724 max_active_luns = 8; 3725 } else if (rs_type == 3726 CS_RAIDSET_PERSONALITY_RAID1){ 3727 max_active_luns = 16; 3728 } else { 3729 /* XXX KDM now what?? */ 3730 } 3731 } 3732 } else { 3733 /* 50% power */ 3734 /* 3735 * With 50% power in a 64 drive configuration, we 3736 * can power all LUNs we present. 3737 */ 3738 max_active_luns = num_luns; 3739 } 3740 break; 3741 case 112: 3742 if (shelf_50pct_power == CS_FALSE) { 3743 /* 25% power */ 3744 if (aor_present == CS_TRUE) { 3745 if (rs_type == 3746 CS_RAIDSET_PERSONALITY_RAID5) { 3747 max_active_luns = 7; 3748 } else if (rs_type == 3749 CS_RAIDSET_PERSONALITY_RAID1){ 3750 max_active_luns = 14; 3751 } else { 3752 /* XXX KDM now what?? */ 3753 } 3754 } else { 3755 if (rs_type == 3756 CS_RAIDSET_PERSONALITY_RAID5) { 3757 max_active_luns = 8; 3758 } else if (rs_type == 3759 CS_RAIDSET_PERSONALITY_RAID1){ 3760 max_active_luns = 16; 3761 } else { 3762 /* XXX KDM now what?? */ 3763 } 3764 } 3765 } else { 3766 /* 50% power */ 3767 if (aor_present == CS_TRUE) { 3768 if (rs_type == 3769 CS_RAIDSET_PERSONALITY_RAID5) { 3770 max_active_luns = 14; 3771 } else if (rs_type == 3772 CS_RAIDSET_PERSONALITY_RAID1){ 3773 /* 3774 * We're assuming here that disk 3775 * caching is enabled, and so we're 3776 * able to power up half of each 3777 * LUN, and cache all writes. 3778 */ 3779 max_active_luns = num_luns; 3780 } else { 3781 /* XXX KDM now what?? */ 3782 } 3783 } else { 3784 if (rs_type == 3785 CS_RAIDSET_PERSONALITY_RAID5) { 3786 max_active_luns = 15; 3787 } else if (rs_type == 3788 CS_RAIDSET_PERSONALITY_RAID1){ 3789 max_active_luns = 30; 3790 } else { 3791 /* XXX KDM now what?? */ 3792 } 3793 } 3794 } 3795 break; 3796 default: 3797 /* 3798 * In this case, we have an unknown configuration, so we 3799 * just use the default from above. 3800 */ 3801 break; 3802 } 3803 3804 page->max_active_luns = max_active_luns; 3805#if 0 3806 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 3807 page->total_luns, page->max_active_luns); 3808#endif 3809} 3810#endif /* NEEDTOPORT */ 3811 3812/* 3813 * This routine could be used in the future to load default and/or saved 3814 * mode page parameters for a particuar lun. 3815 */ 3816static int 3817ctl_init_page_index(struct ctl_lun *lun) 3818{ 3819 int i; 3820 struct ctl_page_index *page_index; 3821 struct ctl_softc *softc; 3822 3823 memcpy(&lun->mode_pages.index, page_index_template, 3824 sizeof(page_index_template)); 3825 3826 softc = lun->ctl_softc; 3827 3828 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3829 3830 page_index = &lun->mode_pages.index[i]; 3831 /* 3832 * If this is a disk-only mode page, there's no point in 3833 * setting it up. For some pages, we have to have some 3834 * basic information about the disk in order to calculate the 3835 * mode page data. 3836 */ 3837 if ((lun->be_lun->lun_type != T_DIRECT) 3838 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3839 continue; 3840 3841 switch (page_index->page_code & SMPH_PC_MASK) { 3842 case SMS_FORMAT_DEVICE_PAGE: { 3843 struct scsi_format_page *format_page; 3844 3845 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3846 panic("subpage is incorrect!"); 3847 3848 /* 3849 * Sectors per track are set above. Bytes per 3850 * sector need to be set here on a per-LUN basis. 3851 */ 3852 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3853 &format_page_default, 3854 sizeof(format_page_default)); 3855 memcpy(&lun->mode_pages.format_page[ 3856 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3857 sizeof(format_page_changeable)); 3858 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3859 &format_page_default, 3860 sizeof(format_page_default)); 3861 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3862 &format_page_default, 3863 sizeof(format_page_default)); 3864 3865 format_page = &lun->mode_pages.format_page[ 3866 CTL_PAGE_CURRENT]; 3867 scsi_ulto2b(lun->be_lun->blocksize, 3868 format_page->bytes_per_sector); 3869 3870 format_page = &lun->mode_pages.format_page[ 3871 CTL_PAGE_DEFAULT]; 3872 scsi_ulto2b(lun->be_lun->blocksize, 3873 format_page->bytes_per_sector); 3874 3875 format_page = &lun->mode_pages.format_page[ 3876 CTL_PAGE_SAVED]; 3877 scsi_ulto2b(lun->be_lun->blocksize, 3878 format_page->bytes_per_sector); 3879 3880 page_index->page_data = 3881 (uint8_t *)lun->mode_pages.format_page; 3882 break; 3883 } 3884 case SMS_RIGID_DISK_PAGE: { 3885 struct scsi_rigid_disk_page *rigid_disk_page; 3886 uint32_t sectors_per_cylinder; 3887 uint64_t cylinders; 3888#ifndef __XSCALE__ 3889 int shift; 3890#endif /* !__XSCALE__ */ 3891 3892 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3893 panic("invalid subpage value %d", 3894 page_index->subpage); 3895 3896 /* 3897 * Rotation rate and sectors per track are set 3898 * above. We calculate the cylinders here based on 3899 * capacity. Due to the number of heads and 3900 * sectors per track we're using, smaller arrays 3901 * may turn out to have 0 cylinders. Linux and 3902 * FreeBSD don't pay attention to these mode pages 3903 * to figure out capacity, but Solaris does. It 3904 * seems to deal with 0 cylinders just fine, and 3905 * works out a fake geometry based on the capacity. 3906 */ 3907 memcpy(&lun->mode_pages.rigid_disk_page[ 3908 CTL_PAGE_CURRENT], &rigid_disk_page_default, 3909 sizeof(rigid_disk_page_default)); 3910 memcpy(&lun->mode_pages.rigid_disk_page[ 3911 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3912 sizeof(rigid_disk_page_changeable)); 3913 memcpy(&lun->mode_pages.rigid_disk_page[ 3914 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3915 sizeof(rigid_disk_page_default)); 3916 memcpy(&lun->mode_pages.rigid_disk_page[ 3917 CTL_PAGE_SAVED], &rigid_disk_page_default, 3918 sizeof(rigid_disk_page_default)); 3919 3920 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3921 CTL_DEFAULT_HEADS; 3922 3923 /* 3924 * The divide method here will be more accurate, 3925 * probably, but results in floating point being 3926 * used in the kernel on i386 (__udivdi3()). On the 3927 * XScale, though, __udivdi3() is implemented in 3928 * software. 3929 * 3930 * The shift method for cylinder calculation is 3931 * accurate if sectors_per_cylinder is a power of 3932 * 2. Otherwise it might be slightly off -- you 3933 * might have a bit of a truncation problem. 3934 */ 3935#ifdef __XSCALE__ 3936 cylinders = (lun->be_lun->maxlba + 1) / 3937 sectors_per_cylinder; 3938#else 3939 for (shift = 31; shift > 0; shift--) { 3940 if (sectors_per_cylinder & (1 << shift)) 3941 break; 3942 } 3943 cylinders = (lun->be_lun->maxlba + 1) >> shift; 3944#endif 3945 3946 /* 3947 * We've basically got 3 bytes, or 24 bits for the 3948 * cylinder size in the mode page. If we're over, 3949 * just round down to 2^24. 3950 */ 3951 if (cylinders > 0xffffff) 3952 cylinders = 0xffffff; 3953 3954 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3955 CTL_PAGE_CURRENT]; 3956 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3957 3958 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3959 CTL_PAGE_DEFAULT]; 3960 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3961 3962 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3963 CTL_PAGE_SAVED]; 3964 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3965 3966 page_index->page_data = 3967 (uint8_t *)lun->mode_pages.rigid_disk_page; 3968 break; 3969 } 3970 case SMS_CACHING_PAGE: { 3971 3972 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3973 panic("invalid subpage value %d", 3974 page_index->subpage); 3975 /* 3976 * Defaults should be okay here, no calculations 3977 * needed. 3978 */ 3979 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 3980 &caching_page_default, 3981 sizeof(caching_page_default)); 3982 memcpy(&lun->mode_pages.caching_page[ 3983 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 3984 sizeof(caching_page_changeable)); 3985 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 3986 &caching_page_default, 3987 sizeof(caching_page_default)); 3988 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3989 &caching_page_default, 3990 sizeof(caching_page_default)); 3991 page_index->page_data = 3992 (uint8_t *)lun->mode_pages.caching_page; 3993 break; 3994 } 3995 case SMS_CONTROL_MODE_PAGE: { 3996 3997 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3998 panic("invalid subpage value %d", 3999 page_index->subpage); 4000 4001 /* 4002 * Defaults should be okay here, no calculations 4003 * needed. 4004 */ 4005 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4006 &control_page_default, 4007 sizeof(control_page_default)); 4008 memcpy(&lun->mode_pages.control_page[ 4009 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4010 sizeof(control_page_changeable)); 4011 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4012 &control_page_default, 4013 sizeof(control_page_default)); 4014 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4015 &control_page_default, 4016 sizeof(control_page_default)); 4017 page_index->page_data = 4018 (uint8_t *)lun->mode_pages.control_page; 4019 break; 4020 4021 } 4022 case SMS_VENDOR_SPECIFIC_PAGE:{ 4023 switch (page_index->subpage) { 4024 case PWR_SUBPAGE_CODE: { 4025 struct copan_power_subpage *current_page, 4026 *saved_page; 4027 4028 memcpy(&lun->mode_pages.power_subpage[ 4029 CTL_PAGE_CURRENT], 4030 &power_page_default, 4031 sizeof(power_page_default)); 4032 memcpy(&lun->mode_pages.power_subpage[ 4033 CTL_PAGE_CHANGEABLE], 4034 &power_page_changeable, 4035 sizeof(power_page_changeable)); 4036 memcpy(&lun->mode_pages.power_subpage[ 4037 CTL_PAGE_DEFAULT], 4038 &power_page_default, 4039 sizeof(power_page_default)); 4040 memcpy(&lun->mode_pages.power_subpage[ 4041 CTL_PAGE_SAVED], 4042 &power_page_default, 4043 sizeof(power_page_default)); 4044 page_index->page_data = 4045 (uint8_t *)lun->mode_pages.power_subpage; 4046 4047 current_page = (struct copan_power_subpage *) 4048 (page_index->page_data + 4049 (page_index->page_len * 4050 CTL_PAGE_CURRENT)); 4051 saved_page = (struct copan_power_subpage *) 4052 (page_index->page_data + 4053 (page_index->page_len * 4054 CTL_PAGE_SAVED)); 4055 break; 4056 } 4057 case APS_SUBPAGE_CODE: { 4058 struct copan_aps_subpage *current_page, 4059 *saved_page; 4060 4061 // This gets set multiple times but 4062 // it should always be the same. It's 4063 // only done during init so who cares. 4064 index_to_aps_page = i; 4065 4066 memcpy(&lun->mode_pages.aps_subpage[ 4067 CTL_PAGE_CURRENT], 4068 &aps_page_default, 4069 sizeof(aps_page_default)); 4070 memcpy(&lun->mode_pages.aps_subpage[ 4071 CTL_PAGE_CHANGEABLE], 4072 &aps_page_changeable, 4073 sizeof(aps_page_changeable)); 4074 memcpy(&lun->mode_pages.aps_subpage[ 4075 CTL_PAGE_DEFAULT], 4076 &aps_page_default, 4077 sizeof(aps_page_default)); 4078 memcpy(&lun->mode_pages.aps_subpage[ 4079 CTL_PAGE_SAVED], 4080 &aps_page_default, 4081 sizeof(aps_page_default)); 4082 page_index->page_data = 4083 (uint8_t *)lun->mode_pages.aps_subpage; 4084 4085 current_page = (struct copan_aps_subpage *) 4086 (page_index->page_data + 4087 (page_index->page_len * 4088 CTL_PAGE_CURRENT)); 4089 saved_page = (struct copan_aps_subpage *) 4090 (page_index->page_data + 4091 (page_index->page_len * 4092 CTL_PAGE_SAVED)); 4093 break; 4094 } 4095 case DBGCNF_SUBPAGE_CODE: { 4096 struct copan_debugconf_subpage *current_page, 4097 *saved_page; 4098 4099 memcpy(&lun->mode_pages.debugconf_subpage[ 4100 CTL_PAGE_CURRENT], 4101 &debugconf_page_default, 4102 sizeof(debugconf_page_default)); 4103 memcpy(&lun->mode_pages.debugconf_subpage[ 4104 CTL_PAGE_CHANGEABLE], 4105 &debugconf_page_changeable, 4106 sizeof(debugconf_page_changeable)); 4107 memcpy(&lun->mode_pages.debugconf_subpage[ 4108 CTL_PAGE_DEFAULT], 4109 &debugconf_page_default, 4110 sizeof(debugconf_page_default)); 4111 memcpy(&lun->mode_pages.debugconf_subpage[ 4112 CTL_PAGE_SAVED], 4113 &debugconf_page_default, 4114 sizeof(debugconf_page_default)); 4115 page_index->page_data = 4116 (uint8_t *)lun->mode_pages.debugconf_subpage; 4117 4118 current_page = (struct copan_debugconf_subpage *) 4119 (page_index->page_data + 4120 (page_index->page_len * 4121 CTL_PAGE_CURRENT)); 4122 saved_page = (struct copan_debugconf_subpage *) 4123 (page_index->page_data + 4124 (page_index->page_len * 4125 CTL_PAGE_SAVED)); 4126 break; 4127 } 4128 default: 4129 panic("invalid subpage value %d", 4130 page_index->subpage); 4131 break; 4132 } 4133 break; 4134 } 4135 default: 4136 panic("invalid page value %d", 4137 page_index->page_code & SMPH_PC_MASK); 4138 break; 4139 } 4140 } 4141 4142 return (CTL_RETVAL_COMPLETE); 4143} 4144 4145/* 4146 * LUN allocation. 4147 * 4148 * Requirements: 4149 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4150 * wants us to allocate the LUN and he can block. 4151 * - ctl_softc is always set 4152 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4153 * 4154 * Returns 0 for success, non-zero (errno) for failure. 4155 */ 4156static int 4157ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4158 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4159{ 4160 struct ctl_lun *nlun, *lun; 4161 struct ctl_frontend *fe; 4162 int lun_number, i, lun_malloced; 4163 4164 if (be_lun == NULL) 4165 return (EINVAL); 4166 4167 /* 4168 * We currently only support Direct Access or Processor LUN types. 4169 */ 4170 switch (be_lun->lun_type) { 4171 case T_DIRECT: 4172 break; 4173 case T_PROCESSOR: 4174 break; 4175 case T_SEQUENTIAL: 4176 case T_CHANGER: 4177 default: 4178 be_lun->lun_config_status(be_lun->be_lun, 4179 CTL_LUN_CONFIG_FAILURE); 4180 break; 4181 } 4182 if (ctl_lun == NULL) { 4183 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4184 lun_malloced = 1; 4185 } else { 4186 lun_malloced = 0; 4187 lun = ctl_lun; 4188 } 4189 4190 memset(lun, 0, sizeof(*lun)); 4191 if (lun_malloced) 4192 lun->flags = CTL_LUN_MALLOCED; 4193 4194 mtx_lock(&ctl_softc->ctl_lock); 4195 /* 4196 * See if the caller requested a particular LUN number. If so, see 4197 * if it is available. Otherwise, allocate the first available LUN. 4198 */ 4199 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4200 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4201 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4202 mtx_unlock(&ctl_softc->ctl_lock); 4203 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4204 printf("ctl: requested LUN ID %d is higher " 4205 "than CTL_MAX_LUNS - 1 (%d)\n", 4206 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4207 } else { 4208 /* 4209 * XXX KDM return an error, or just assign 4210 * another LUN ID in this case?? 4211 */ 4212 printf("ctl: requested LUN ID %d is already " 4213 "in use\n", be_lun->req_lun_id); 4214 } 4215 if (lun->flags & CTL_LUN_MALLOCED) 4216 free(lun, M_CTL); 4217 be_lun->lun_config_status(be_lun->be_lun, 4218 CTL_LUN_CONFIG_FAILURE); 4219 return (ENOSPC); 4220 } 4221 lun_number = be_lun->req_lun_id; 4222 } else { 4223 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4224 if (lun_number == -1) { 4225 mtx_unlock(&ctl_softc->ctl_lock); 4226 printf("ctl: can't allocate LUN on target %ju, out of " 4227 "LUNs\n", (uintmax_t)target_id.id); 4228 if (lun->flags & CTL_LUN_MALLOCED) 4229 free(lun, M_CTL); 4230 be_lun->lun_config_status(be_lun->be_lun, 4231 CTL_LUN_CONFIG_FAILURE); 4232 return (ENOSPC); 4233 } 4234 } 4235 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4236 4237 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4238 lun->target = target_id; 4239 lun->lun = lun_number; 4240 lun->be_lun = be_lun; 4241 /* 4242 * The processor LUN is always enabled. Disk LUNs come on line 4243 * disabled, and must be enabled by the backend. 4244 */ 4245 lun->flags |= CTL_LUN_DISABLED; 4246 lun->backend = be_lun->be; 4247 be_lun->ctl_lun = lun; 4248 be_lun->lun_id = lun_number; 4249 atomic_add_int(&be_lun->be->num_luns, 1); 4250 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4251 lun->flags |= CTL_LUN_STOPPED; 4252 4253 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4254 lun->flags |= CTL_LUN_INOPERABLE; 4255 4256 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4257 lun->flags |= CTL_LUN_PRIMARY_SC; 4258 4259 lun->ctl_softc = ctl_softc; 4260 TAILQ_INIT(&lun->ooa_queue); 4261 TAILQ_INIT(&lun->blocked_queue); 4262 STAILQ_INIT(&lun->error_list); 4263 4264 /* 4265 * Initialize the mode page index. 4266 */ 4267 ctl_init_page_index(lun); 4268 4269 /* 4270 * Set the poweron UA for all initiators on this LUN only. 4271 */ 4272 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4273 lun->pending_sense[i].ua_pending = CTL_UA_POWERON; 4274 4275 /* 4276 * Now, before we insert this lun on the lun list, set the lun 4277 * inventory changed UA for all other luns. 4278 */ 4279 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4280 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4281 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4282 } 4283 } 4284 4285 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4286 4287 ctl_softc->ctl_luns[lun_number] = lun; 4288 4289 ctl_softc->num_luns++; 4290 4291 /* Setup statistics gathering */ 4292 lun->stats.device_type = be_lun->lun_type; 4293 lun->stats.lun_number = lun_number; 4294 if (lun->stats.device_type == T_DIRECT) 4295 lun->stats.blocksize = be_lun->blocksize; 4296 else 4297 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4298 for (i = 0;i < CTL_MAX_PORTS;i++) 4299 lun->stats.ports[i].targ_port = i; 4300 4301 mtx_unlock(&ctl_softc->ctl_lock); 4302 4303 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4304 4305 /* 4306 * Run through each registered FETD and bring it online if it isn't 4307 * already. Enable the target ID if it hasn't been enabled, and 4308 * enable this particular LUN. 4309 */ 4310 STAILQ_FOREACH(fe, &ctl_softc->fe_list, links) { 4311 int retval; 4312 4313 /* 4314 * XXX KDM this only works for ONE TARGET ID. We'll need 4315 * to do things differently if we go to a multiple target 4316 * ID scheme. 4317 */ 4318 if ((fe->status & CTL_PORT_STATUS_TARG_ONLINE) == 0) { 4319 4320 retval = fe->targ_enable(fe->targ_lun_arg, target_id); 4321 if (retval != 0) { 4322 printf("ctl_alloc_lun: FETD %s port %d " 4323 "returned error %d for targ_enable on " 4324 "target %ju\n", fe->port_name, 4325 fe->targ_port, retval, 4326 (uintmax_t)target_id.id); 4327 } else 4328 fe->status |= CTL_PORT_STATUS_TARG_ONLINE; 4329 } 4330 4331 retval = fe->lun_enable(fe->targ_lun_arg, target_id,lun_number); 4332 if (retval != 0) { 4333 printf("ctl_alloc_lun: FETD %s port %d returned error " 4334 "%d for lun_enable on target %ju lun %d\n", 4335 fe->port_name, fe->targ_port, retval, 4336 (uintmax_t)target_id.id, lun_number); 4337 } else 4338 fe->status |= CTL_PORT_STATUS_LUN_ONLINE; 4339 } 4340 return (0); 4341} 4342 4343/* 4344 * Delete a LUN. 4345 * Assumptions: 4346 * - LUN has already been marked invalid and any pending I/O has been taken 4347 * care of. 4348 */ 4349static int 4350ctl_free_lun(struct ctl_lun *lun) 4351{ 4352 struct ctl_softc *softc; 4353#if 0 4354 struct ctl_frontend *fe; 4355#endif 4356 struct ctl_lun *nlun; 4357 int i; 4358 4359 softc = lun->ctl_softc; 4360 4361 mtx_assert(&softc->ctl_lock, MA_OWNED); 4362 4363 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4364 4365 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4366 4367 softc->ctl_luns[lun->lun] = NULL; 4368 4369 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4370 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4371 4372 softc->num_luns--; 4373 4374 /* 4375 * XXX KDM this scheme only works for a single target/multiple LUN 4376 * setup. It needs to be revamped for a multiple target scheme. 4377 * 4378 * XXX KDM this results in fe->lun_disable() getting called twice, 4379 * once when ctl_disable_lun() is called, and a second time here. 4380 * We really need to re-think the LUN disable semantics. There 4381 * should probably be several steps/levels to LUN removal: 4382 * - disable 4383 * - invalidate 4384 * - free 4385 * 4386 * Right now we only have a disable method when communicating to 4387 * the front end ports, at least for individual LUNs. 4388 */ 4389#if 0 4390 STAILQ_FOREACH(fe, &softc->fe_list, links) { 4391 int retval; 4392 4393 retval = fe->lun_disable(fe->targ_lun_arg, lun->target, 4394 lun->lun); 4395 if (retval != 0) { 4396 printf("ctl_free_lun: FETD %s port %d returned error " 4397 "%d for lun_disable on target %ju lun %jd\n", 4398 fe->port_name, fe->targ_port, retval, 4399 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4400 } 4401 4402 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4403 fe->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4404 4405 retval = fe->targ_disable(fe->targ_lun_arg,lun->target); 4406 if (retval != 0) { 4407 printf("ctl_free_lun: FETD %s port %d " 4408 "returned error %d for targ_disable on " 4409 "target %ju\n", fe->port_name, 4410 fe->targ_port, retval, 4411 (uintmax_t)lun->target.id); 4412 } else 4413 fe->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4414 4415 if ((fe->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4416 continue; 4417 4418#if 0 4419 fe->port_offline(fe->onoff_arg); 4420 fe->status &= ~CTL_PORT_STATUS_ONLINE; 4421#endif 4422 } 4423 } 4424#endif 4425 4426 /* 4427 * Tell the backend to free resources, if this LUN has a backend. 4428 */ 4429 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4430 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4431 4432 mtx_destroy(&lun->lun_lock); 4433 if (lun->flags & CTL_LUN_MALLOCED) 4434 free(lun, M_CTL); 4435 4436 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4437 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4438 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4439 } 4440 } 4441 4442 return (0); 4443} 4444 4445static void 4446ctl_create_lun(struct ctl_be_lun *be_lun) 4447{ 4448 struct ctl_softc *ctl_softc; 4449 4450 ctl_softc = control_softc; 4451 4452 /* 4453 * ctl_alloc_lun() should handle all potential failure cases. 4454 */ 4455 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4456} 4457 4458int 4459ctl_add_lun(struct ctl_be_lun *be_lun) 4460{ 4461 struct ctl_softc *ctl_softc = control_softc; 4462 4463 mtx_lock(&ctl_softc->ctl_lock); 4464 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4465 mtx_unlock(&ctl_softc->ctl_lock); 4466 wakeup(&ctl_softc->pending_lun_queue); 4467 4468 return (0); 4469} 4470 4471int 4472ctl_enable_lun(struct ctl_be_lun *be_lun) 4473{ 4474 struct ctl_softc *ctl_softc; 4475 struct ctl_frontend *fe, *nfe; 4476 struct ctl_lun *lun; 4477 int retval; 4478 4479 ctl_softc = control_softc; 4480 4481 lun = (struct ctl_lun *)be_lun->ctl_lun; 4482 4483 mtx_lock(&ctl_softc->ctl_lock); 4484 mtx_lock(&lun->lun_lock); 4485 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4486 /* 4487 * eh? Why did we get called if the LUN is already 4488 * enabled? 4489 */ 4490 mtx_unlock(&lun->lun_lock); 4491 mtx_unlock(&ctl_softc->ctl_lock); 4492 return (0); 4493 } 4494 lun->flags &= ~CTL_LUN_DISABLED; 4495 mtx_unlock(&lun->lun_lock); 4496 4497 for (fe = STAILQ_FIRST(&ctl_softc->fe_list); fe != NULL; fe = nfe) { 4498 nfe = STAILQ_NEXT(fe, links); 4499 4500 /* 4501 * Drop the lock while we call the FETD's enable routine. 4502 * This can lead to a callback into CTL (at least in the 4503 * case of the internal initiator frontend. 4504 */ 4505 mtx_unlock(&ctl_softc->ctl_lock); 4506 retval = fe->lun_enable(fe->targ_lun_arg, lun->target,lun->lun); 4507 mtx_lock(&ctl_softc->ctl_lock); 4508 if (retval != 0) { 4509 printf("%s: FETD %s port %d returned error " 4510 "%d for lun_enable on target %ju lun %jd\n", 4511 __func__, fe->port_name, fe->targ_port, retval, 4512 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4513 } 4514#if 0 4515 else { 4516 /* NOTE: TODO: why does lun enable affect port status? */ 4517 fe->status |= CTL_PORT_STATUS_LUN_ONLINE; 4518 } 4519#endif 4520 } 4521 4522 mtx_unlock(&ctl_softc->ctl_lock); 4523 4524 return (0); 4525} 4526 4527int 4528ctl_disable_lun(struct ctl_be_lun *be_lun) 4529{ 4530 struct ctl_softc *ctl_softc; 4531 struct ctl_frontend *fe; 4532 struct ctl_lun *lun; 4533 int retval; 4534 4535 ctl_softc = control_softc; 4536 4537 lun = (struct ctl_lun *)be_lun->ctl_lun; 4538 4539 mtx_lock(&ctl_softc->ctl_lock); 4540 mtx_lock(&lun->lun_lock); 4541 if (lun->flags & CTL_LUN_DISABLED) { 4542 mtx_unlock(&lun->lun_lock); 4543 mtx_unlock(&ctl_softc->ctl_lock); 4544 return (0); 4545 } 4546 lun->flags |= CTL_LUN_DISABLED; 4547 mtx_unlock(&lun->lun_lock); 4548 4549 STAILQ_FOREACH(fe, &ctl_softc->fe_list, links) { 4550 mtx_unlock(&ctl_softc->ctl_lock); 4551 /* 4552 * Drop the lock before we call the frontend's disable 4553 * routine, to avoid lock order reversals. 4554 * 4555 * XXX KDM what happens if the frontend list changes while 4556 * we're traversing it? It's unlikely, but should be handled. 4557 */ 4558 retval = fe->lun_disable(fe->targ_lun_arg, lun->target, 4559 lun->lun); 4560 mtx_lock(&ctl_softc->ctl_lock); 4561 if (retval != 0) { 4562 printf("ctl_alloc_lun: FETD %s port %d returned error " 4563 "%d for lun_disable on target %ju lun %jd\n", 4564 fe->port_name, fe->targ_port, retval, 4565 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4566 } 4567 } 4568 4569 mtx_unlock(&ctl_softc->ctl_lock); 4570 4571 return (0); 4572} 4573 4574int 4575ctl_start_lun(struct ctl_be_lun *be_lun) 4576{ 4577 struct ctl_softc *ctl_softc; 4578 struct ctl_lun *lun; 4579 4580 ctl_softc = control_softc; 4581 4582 lun = (struct ctl_lun *)be_lun->ctl_lun; 4583 4584 mtx_lock(&lun->lun_lock); 4585 lun->flags &= ~CTL_LUN_STOPPED; 4586 mtx_unlock(&lun->lun_lock); 4587 4588 return (0); 4589} 4590 4591int 4592ctl_stop_lun(struct ctl_be_lun *be_lun) 4593{ 4594 struct ctl_softc *ctl_softc; 4595 struct ctl_lun *lun; 4596 4597 ctl_softc = control_softc; 4598 4599 lun = (struct ctl_lun *)be_lun->ctl_lun; 4600 4601 mtx_lock(&lun->lun_lock); 4602 lun->flags |= CTL_LUN_STOPPED; 4603 mtx_unlock(&lun->lun_lock); 4604 4605 return (0); 4606} 4607 4608int 4609ctl_lun_offline(struct ctl_be_lun *be_lun) 4610{ 4611 struct ctl_softc *ctl_softc; 4612 struct ctl_lun *lun; 4613 4614 ctl_softc = control_softc; 4615 4616 lun = (struct ctl_lun *)be_lun->ctl_lun; 4617 4618 mtx_lock(&lun->lun_lock); 4619 lun->flags |= CTL_LUN_OFFLINE; 4620 mtx_unlock(&lun->lun_lock); 4621 4622 return (0); 4623} 4624 4625int 4626ctl_lun_online(struct ctl_be_lun *be_lun) 4627{ 4628 struct ctl_softc *ctl_softc; 4629 struct ctl_lun *lun; 4630 4631 ctl_softc = control_softc; 4632 4633 lun = (struct ctl_lun *)be_lun->ctl_lun; 4634 4635 mtx_lock(&lun->lun_lock); 4636 lun->flags &= ~CTL_LUN_OFFLINE; 4637 mtx_unlock(&lun->lun_lock); 4638 4639 return (0); 4640} 4641 4642int 4643ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4644{ 4645 struct ctl_softc *ctl_softc; 4646 struct ctl_lun *lun; 4647 4648 ctl_softc = control_softc; 4649 4650 lun = (struct ctl_lun *)be_lun->ctl_lun; 4651 4652 mtx_lock(&lun->lun_lock); 4653 4654 /* 4655 * The LUN needs to be disabled before it can be marked invalid. 4656 */ 4657 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4658 mtx_unlock(&lun->lun_lock); 4659 return (-1); 4660 } 4661 /* 4662 * Mark the LUN invalid. 4663 */ 4664 lun->flags |= CTL_LUN_INVALID; 4665 4666 /* 4667 * If there is nothing in the OOA queue, go ahead and free the LUN. 4668 * If we have something in the OOA queue, we'll free it when the 4669 * last I/O completes. 4670 */ 4671 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4672 mtx_unlock(&lun->lun_lock); 4673 mtx_lock(&ctl_softc->ctl_lock); 4674 ctl_free_lun(lun); 4675 mtx_unlock(&ctl_softc->ctl_lock); 4676 } else 4677 mtx_unlock(&lun->lun_lock); 4678 4679 return (0); 4680} 4681 4682int 4683ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4684{ 4685 struct ctl_softc *ctl_softc; 4686 struct ctl_lun *lun; 4687 4688 ctl_softc = control_softc; 4689 lun = (struct ctl_lun *)be_lun->ctl_lun; 4690 4691 mtx_lock(&lun->lun_lock); 4692 lun->flags |= CTL_LUN_INOPERABLE; 4693 mtx_unlock(&lun->lun_lock); 4694 4695 return (0); 4696} 4697 4698int 4699ctl_lun_operable(struct ctl_be_lun *be_lun) 4700{ 4701 struct ctl_softc *ctl_softc; 4702 struct ctl_lun *lun; 4703 4704 ctl_softc = control_softc; 4705 lun = (struct ctl_lun *)be_lun->ctl_lun; 4706 4707 mtx_lock(&lun->lun_lock); 4708 lun->flags &= ~CTL_LUN_INOPERABLE; 4709 mtx_unlock(&lun->lun_lock); 4710 4711 return (0); 4712} 4713 4714int 4715ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 4716 int lock) 4717{ 4718 struct ctl_softc *softc; 4719 struct ctl_lun *lun; 4720 struct copan_aps_subpage *current_sp; 4721 struct ctl_page_index *page_index; 4722 int i; 4723 4724 softc = control_softc; 4725 4726 mtx_lock(&softc->ctl_lock); 4727 4728 lun = (struct ctl_lun *)be_lun->ctl_lun; 4729 mtx_lock(&lun->lun_lock); 4730 4731 page_index = NULL; 4732 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4733 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 4734 APS_PAGE_CODE) 4735 continue; 4736 4737 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 4738 continue; 4739 page_index = &lun->mode_pages.index[i]; 4740 } 4741 4742 if (page_index == NULL) { 4743 mtx_unlock(&lun->lun_lock); 4744 mtx_unlock(&softc->ctl_lock); 4745 printf("%s: APS subpage not found for lun %ju!\n", __func__, 4746 (uintmax_t)lun->lun); 4747 return (1); 4748 } 4749#if 0 4750 if ((softc->aps_locked_lun != 0) 4751 && (softc->aps_locked_lun != lun->lun)) { 4752 printf("%s: attempt to lock LUN %llu when %llu is already " 4753 "locked\n"); 4754 mtx_unlock(&lun->lun_lock); 4755 mtx_unlock(&softc->ctl_lock); 4756 return (1); 4757 } 4758#endif 4759 4760 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 4761 (page_index->page_len * CTL_PAGE_CURRENT)); 4762 4763 if (lock != 0) { 4764 current_sp->lock_active = APS_LOCK_ACTIVE; 4765 softc->aps_locked_lun = lun->lun; 4766 } else { 4767 current_sp->lock_active = 0; 4768 softc->aps_locked_lun = 0; 4769 } 4770 4771 4772 /* 4773 * If we're in HA mode, try to send the lock message to the other 4774 * side. 4775 */ 4776 if (ctl_is_single == 0) { 4777 int isc_retval; 4778 union ctl_ha_msg lock_msg; 4779 4780 lock_msg.hdr.nexus = *nexus; 4781 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 4782 if (lock != 0) 4783 lock_msg.aps.lock_flag = 1; 4784 else 4785 lock_msg.aps.lock_flag = 0; 4786 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 4787 sizeof(lock_msg), 0); 4788 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 4789 printf("%s: APS (lock=%d) error returned from " 4790 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 4791 mtx_unlock(&lun->lun_lock); 4792 mtx_unlock(&softc->ctl_lock); 4793 return (1); 4794 } 4795 } 4796 4797 mtx_unlock(&lun->lun_lock); 4798 mtx_unlock(&softc->ctl_lock); 4799 4800 return (0); 4801} 4802 4803void 4804ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4805{ 4806 struct ctl_lun *lun; 4807 struct ctl_softc *softc; 4808 int i; 4809 4810 softc = control_softc; 4811 4812 lun = (struct ctl_lun *)be_lun->ctl_lun; 4813 4814 mtx_lock(&lun->lun_lock); 4815 4816 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4817 lun->pending_sense[i].ua_pending |= CTL_UA_CAPACITY_CHANGED; 4818 4819 mtx_unlock(&lun->lun_lock); 4820} 4821 4822/* 4823 * Backend "memory move is complete" callback for requests that never 4824 * make it down to say RAIDCore's configuration code. 4825 */ 4826int 4827ctl_config_move_done(union ctl_io *io) 4828{ 4829 int retval; 4830 4831 retval = CTL_RETVAL_COMPLETE; 4832 4833 4834 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4835 /* 4836 * XXX KDM this shouldn't happen, but what if it does? 4837 */ 4838 if (io->io_hdr.io_type != CTL_IO_SCSI) 4839 panic("I/O type isn't CTL_IO_SCSI!"); 4840 4841 if ((io->io_hdr.port_status == 0) 4842 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 4843 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 4844 io->io_hdr.status = CTL_SUCCESS; 4845 else if ((io->io_hdr.port_status != 0) 4846 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 4847 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 4848 /* 4849 * For hardware error sense keys, the sense key 4850 * specific value is defined to be a retry count, 4851 * but we use it to pass back an internal FETD 4852 * error code. XXX KDM Hopefully the FETD is only 4853 * using 16 bits for an error code, since that's 4854 * all the space we have in the sks field. 4855 */ 4856 ctl_set_internal_failure(&io->scsiio, 4857 /*sks_valid*/ 1, 4858 /*retry_count*/ 4859 io->io_hdr.port_status); 4860 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4861 free(io->scsiio.kern_data_ptr, M_CTL); 4862 ctl_done(io); 4863 goto bailout; 4864 } 4865 4866 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 4867 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 4868 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4869 /* 4870 * XXX KDM just assuming a single pointer here, and not a 4871 * S/G list. If we start using S/G lists for config data, 4872 * we'll need to know how to clean them up here as well. 4873 */ 4874 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4875 free(io->scsiio.kern_data_ptr, M_CTL); 4876 /* Hopefully the user has already set the status... */ 4877 ctl_done(io); 4878 } else { 4879 /* 4880 * XXX KDM now we need to continue data movement. Some 4881 * options: 4882 * - call ctl_scsiio() again? We don't do this for data 4883 * writes, because for those at least we know ahead of 4884 * time where the write will go and how long it is. For 4885 * config writes, though, that information is largely 4886 * contained within the write itself, thus we need to 4887 * parse out the data again. 4888 * 4889 * - Call some other function once the data is in? 4890 */ 4891 4892 /* 4893 * XXX KDM call ctl_scsiio() again for now, and check flag 4894 * bits to see whether we're allocated or not. 4895 */ 4896 retval = ctl_scsiio(&io->scsiio); 4897 } 4898bailout: 4899 return (retval); 4900} 4901 4902/* 4903 * This gets called by a backend driver when it is done with a 4904 * data_submit method. 4905 */ 4906void 4907ctl_data_submit_done(union ctl_io *io) 4908{ 4909 /* 4910 * If the IO_CONT flag is set, we need to call the supplied 4911 * function to continue processing the I/O, instead of completing 4912 * the I/O just yet. 4913 * 4914 * If there is an error, though, we don't want to keep processing. 4915 * Instead, just send status back to the initiator. 4916 */ 4917 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4918 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4919 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4920 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4921 io->scsiio.io_cont(io); 4922 return; 4923 } 4924 ctl_done(io); 4925} 4926 4927/* 4928 * This gets called by a backend driver when it is done with a 4929 * configuration write. 4930 */ 4931void 4932ctl_config_write_done(union ctl_io *io) 4933{ 4934 /* 4935 * If the IO_CONT flag is set, we need to call the supplied 4936 * function to continue processing the I/O, instead of completing 4937 * the I/O just yet. 4938 * 4939 * If there is an error, though, we don't want to keep processing. 4940 * Instead, just send status back to the initiator. 4941 */ 4942 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 4943 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 4944 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 4945 io->scsiio.io_cont(io); 4946 return; 4947 } 4948 /* 4949 * Since a configuration write can be done for commands that actually 4950 * have data allocated, like write buffer, and commands that have 4951 * no data, like start/stop unit, we need to check here. 4952 */ 4953 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 4954 free(io->scsiio.kern_data_ptr, M_CTL); 4955 ctl_done(io); 4956} 4957 4958/* 4959 * SCSI release command. 4960 */ 4961int 4962ctl_scsi_release(struct ctl_scsiio *ctsio) 4963{ 4964 int length, longid, thirdparty_id, resv_id; 4965 struct ctl_softc *ctl_softc; 4966 struct ctl_lun *lun; 4967 4968 length = 0; 4969 resv_id = 0; 4970 4971 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 4972 4973 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4974 ctl_softc = control_softc; 4975 4976 switch (ctsio->cdb[0]) { 4977 case RELEASE_10: { 4978 struct scsi_release_10 *cdb; 4979 4980 cdb = (struct scsi_release_10 *)ctsio->cdb; 4981 4982 if (cdb->byte2 & SR10_LONGID) 4983 longid = 1; 4984 else 4985 thirdparty_id = cdb->thirdparty_id; 4986 4987 resv_id = cdb->resv_id; 4988 length = scsi_2btoul(cdb->length); 4989 break; 4990 } 4991 } 4992 4993 4994 /* 4995 * XXX KDM right now, we only support LUN reservation. We don't 4996 * support 3rd party reservations, or extent reservations, which 4997 * might actually need the parameter list. If we've gotten this 4998 * far, we've got a LUN reservation. Anything else got kicked out 4999 * above. So, according to SPC, ignore the length. 5000 */ 5001 length = 0; 5002 5003 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5004 && (length > 0)) { 5005 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5006 ctsio->kern_data_len = length; 5007 ctsio->kern_total_len = length; 5008 ctsio->kern_data_resid = 0; 5009 ctsio->kern_rel_offset = 0; 5010 ctsio->kern_sg_entries = 0; 5011 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5012 ctsio->be_move_done = ctl_config_move_done; 5013 ctl_datamove((union ctl_io *)ctsio); 5014 5015 return (CTL_RETVAL_COMPLETE); 5016 } 5017 5018 if (length > 0) 5019 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5020 5021 mtx_lock(&lun->lun_lock); 5022 5023 /* 5024 * According to SPC, it is not an error for an intiator to attempt 5025 * to release a reservation on a LUN that isn't reserved, or that 5026 * is reserved by another initiator. The reservation can only be 5027 * released, though, by the initiator who made it or by one of 5028 * several reset type events. 5029 */ 5030 if (lun->flags & CTL_LUN_RESERVED) { 5031 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5032 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5033 && (ctsio->io_hdr.nexus.targ_target.id == 5034 lun->rsv_nexus.targ_target.id)) { 5035 lun->flags &= ~CTL_LUN_RESERVED; 5036 } 5037 } 5038 5039 mtx_unlock(&lun->lun_lock); 5040 5041 ctsio->scsi_status = SCSI_STATUS_OK; 5042 ctsio->io_hdr.status = CTL_SUCCESS; 5043 5044 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5045 free(ctsio->kern_data_ptr, M_CTL); 5046 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5047 } 5048 5049 ctl_done((union ctl_io *)ctsio); 5050 return (CTL_RETVAL_COMPLETE); 5051} 5052 5053int 5054ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5055{ 5056 int extent, thirdparty, longid; 5057 int resv_id, length; 5058 uint64_t thirdparty_id; 5059 struct ctl_softc *ctl_softc; 5060 struct ctl_lun *lun; 5061 5062 extent = 0; 5063 thirdparty = 0; 5064 longid = 0; 5065 resv_id = 0; 5066 length = 0; 5067 thirdparty_id = 0; 5068 5069 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5070 5071 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5072 ctl_softc = control_softc; 5073 5074 switch (ctsio->cdb[0]) { 5075 case RESERVE_10: { 5076 struct scsi_reserve_10 *cdb; 5077 5078 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5079 5080 if (cdb->byte2 & SR10_LONGID) 5081 longid = 1; 5082 else 5083 thirdparty_id = cdb->thirdparty_id; 5084 5085 resv_id = cdb->resv_id; 5086 length = scsi_2btoul(cdb->length); 5087 break; 5088 } 5089 } 5090 5091 /* 5092 * XXX KDM right now, we only support LUN reservation. We don't 5093 * support 3rd party reservations, or extent reservations, which 5094 * might actually need the parameter list. If we've gotten this 5095 * far, we've got a LUN reservation. Anything else got kicked out 5096 * above. So, according to SPC, ignore the length. 5097 */ 5098 length = 0; 5099 5100 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5101 && (length > 0)) { 5102 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5103 ctsio->kern_data_len = length; 5104 ctsio->kern_total_len = length; 5105 ctsio->kern_data_resid = 0; 5106 ctsio->kern_rel_offset = 0; 5107 ctsio->kern_sg_entries = 0; 5108 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5109 ctsio->be_move_done = ctl_config_move_done; 5110 ctl_datamove((union ctl_io *)ctsio); 5111 5112 return (CTL_RETVAL_COMPLETE); 5113 } 5114 5115 if (length > 0) 5116 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5117 5118 mtx_lock(&lun->lun_lock); 5119 if (lun->flags & CTL_LUN_RESERVED) { 5120 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5121 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5122 || (ctsio->io_hdr.nexus.targ_target.id != 5123 lun->rsv_nexus.targ_target.id)) { 5124 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5125 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5126 goto bailout; 5127 } 5128 } 5129 5130 lun->flags |= CTL_LUN_RESERVED; 5131 lun->rsv_nexus = ctsio->io_hdr.nexus; 5132 5133 ctsio->scsi_status = SCSI_STATUS_OK; 5134 ctsio->io_hdr.status = CTL_SUCCESS; 5135 5136bailout: 5137 mtx_unlock(&lun->lun_lock); 5138 5139 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5140 free(ctsio->kern_data_ptr, M_CTL); 5141 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5142 } 5143 5144 ctl_done((union ctl_io *)ctsio); 5145 return (CTL_RETVAL_COMPLETE); 5146} 5147 5148int 5149ctl_start_stop(struct ctl_scsiio *ctsio) 5150{ 5151 struct scsi_start_stop_unit *cdb; 5152 struct ctl_lun *lun; 5153 struct ctl_softc *ctl_softc; 5154 int retval; 5155 5156 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5157 5158 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5159 ctl_softc = control_softc; 5160 retval = 0; 5161 5162 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5163 5164 /* 5165 * XXX KDM 5166 * We don't support the immediate bit on a stop unit. In order to 5167 * do that, we would need to code up a way to know that a stop is 5168 * pending, and hold off any new commands until it completes, one 5169 * way or another. Then we could accept or reject those commands 5170 * depending on its status. We would almost need to do the reverse 5171 * of what we do below for an immediate start -- return the copy of 5172 * the ctl_io to the FETD with status to send to the host (and to 5173 * free the copy!) and then free the original I/O once the stop 5174 * actually completes. That way, the OOA queue mechanism can work 5175 * to block commands that shouldn't proceed. Another alternative 5176 * would be to put the copy in the queue in place of the original, 5177 * and return the original back to the caller. That could be 5178 * slightly safer.. 5179 */ 5180 if ((cdb->byte2 & SSS_IMMED) 5181 && ((cdb->how & SSS_START) == 0)) { 5182 ctl_set_invalid_field(ctsio, 5183 /*sks_valid*/ 1, 5184 /*command*/ 1, 5185 /*field*/ 1, 5186 /*bit_valid*/ 1, 5187 /*bit*/ 0); 5188 ctl_done((union ctl_io *)ctsio); 5189 return (CTL_RETVAL_COMPLETE); 5190 } 5191 5192 if ((lun->flags & CTL_LUN_PR_RESERVED) 5193 && ((cdb->how & SSS_START)==0)) { 5194 uint32_t residx; 5195 5196 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5197 if (!lun->per_res[residx].registered 5198 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5199 5200 ctl_set_reservation_conflict(ctsio); 5201 ctl_done((union ctl_io *)ctsio); 5202 return (CTL_RETVAL_COMPLETE); 5203 } 5204 } 5205 5206 /* 5207 * If there is no backend on this device, we can't start or stop 5208 * it. In theory we shouldn't get any start/stop commands in the 5209 * first place at this level if the LUN doesn't have a backend. 5210 * That should get stopped by the command decode code. 5211 */ 5212 if (lun->backend == NULL) { 5213 ctl_set_invalid_opcode(ctsio); 5214 ctl_done((union ctl_io *)ctsio); 5215 return (CTL_RETVAL_COMPLETE); 5216 } 5217 5218 /* 5219 * XXX KDM Copan-specific offline behavior. 5220 * Figure out a reasonable way to port this? 5221 */ 5222#ifdef NEEDTOPORT 5223 mtx_lock(&lun->lun_lock); 5224 5225 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5226 && (lun->flags & CTL_LUN_OFFLINE)) { 5227 /* 5228 * If the LUN is offline, and the on/offline bit isn't set, 5229 * reject the start or stop. Otherwise, let it through. 5230 */ 5231 mtx_unlock(&lun->lun_lock); 5232 ctl_set_lun_not_ready(ctsio); 5233 ctl_done((union ctl_io *)ctsio); 5234 } else { 5235 mtx_unlock(&lun->lun_lock); 5236#endif /* NEEDTOPORT */ 5237 /* 5238 * This could be a start or a stop when we're online, 5239 * or a stop/offline or start/online. A start or stop when 5240 * we're offline is covered in the case above. 5241 */ 5242 /* 5243 * In the non-immediate case, we send the request to 5244 * the backend and return status to the user when 5245 * it is done. 5246 * 5247 * In the immediate case, we allocate a new ctl_io 5248 * to hold a copy of the request, and send that to 5249 * the backend. We then set good status on the 5250 * user's request and return it immediately. 5251 */ 5252 if (cdb->byte2 & SSS_IMMED) { 5253 union ctl_io *new_io; 5254 5255 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5256 if (new_io == NULL) { 5257 ctl_set_busy(ctsio); 5258 ctl_done((union ctl_io *)ctsio); 5259 } else { 5260 ctl_copy_io((union ctl_io *)ctsio, 5261 new_io); 5262 retval = lun->backend->config_write(new_io); 5263 ctl_set_success(ctsio); 5264 ctl_done((union ctl_io *)ctsio); 5265 } 5266 } else { 5267 retval = lun->backend->config_write( 5268 (union ctl_io *)ctsio); 5269 } 5270#ifdef NEEDTOPORT 5271 } 5272#endif 5273 return (retval); 5274} 5275 5276/* 5277 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5278 * we don't really do anything with the LBA and length fields if the user 5279 * passes them in. Instead we'll just flush out the cache for the entire 5280 * LUN. 5281 */ 5282int 5283ctl_sync_cache(struct ctl_scsiio *ctsio) 5284{ 5285 struct ctl_lun *lun; 5286 struct ctl_softc *ctl_softc; 5287 uint64_t starting_lba; 5288 uint32_t block_count; 5289 int retval; 5290 5291 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5292 5293 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5294 ctl_softc = control_softc; 5295 retval = 0; 5296 5297 switch (ctsio->cdb[0]) { 5298 case SYNCHRONIZE_CACHE: { 5299 struct scsi_sync_cache *cdb; 5300 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5301 5302 starting_lba = scsi_4btoul(cdb->begin_lba); 5303 block_count = scsi_2btoul(cdb->lb_count); 5304 break; 5305 } 5306 case SYNCHRONIZE_CACHE_16: { 5307 struct scsi_sync_cache_16 *cdb; 5308 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5309 5310 starting_lba = scsi_8btou64(cdb->begin_lba); 5311 block_count = scsi_4btoul(cdb->lb_count); 5312 break; 5313 } 5314 default: 5315 ctl_set_invalid_opcode(ctsio); 5316 ctl_done((union ctl_io *)ctsio); 5317 goto bailout; 5318 break; /* NOTREACHED */ 5319 } 5320 5321 /* 5322 * We check the LBA and length, but don't do anything with them. 5323 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5324 * get flushed. This check will just help satisfy anyone who wants 5325 * to see an error for an out of range LBA. 5326 */ 5327 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5328 ctl_set_lba_out_of_range(ctsio); 5329 ctl_done((union ctl_io *)ctsio); 5330 goto bailout; 5331 } 5332 5333 /* 5334 * If this LUN has no backend, we can't flush the cache anyway. 5335 */ 5336 if (lun->backend == NULL) { 5337 ctl_set_invalid_opcode(ctsio); 5338 ctl_done((union ctl_io *)ctsio); 5339 goto bailout; 5340 } 5341 5342 /* 5343 * Check to see whether we're configured to send the SYNCHRONIZE 5344 * CACHE command directly to the back end. 5345 */ 5346 mtx_lock(&lun->lun_lock); 5347 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5348 && (++(lun->sync_count) >= lun->sync_interval)) { 5349 lun->sync_count = 0; 5350 mtx_unlock(&lun->lun_lock); 5351 retval = lun->backend->config_write((union ctl_io *)ctsio); 5352 } else { 5353 mtx_unlock(&lun->lun_lock); 5354 ctl_set_success(ctsio); 5355 ctl_done((union ctl_io *)ctsio); 5356 } 5357 5358bailout: 5359 5360 return (retval); 5361} 5362 5363int 5364ctl_format(struct ctl_scsiio *ctsio) 5365{ 5366 struct scsi_format *cdb; 5367 struct ctl_lun *lun; 5368 struct ctl_softc *ctl_softc; 5369 int length, defect_list_len; 5370 5371 CTL_DEBUG_PRINT(("ctl_format\n")); 5372 5373 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5374 ctl_softc = control_softc; 5375 5376 cdb = (struct scsi_format *)ctsio->cdb; 5377 5378 length = 0; 5379 if (cdb->byte2 & SF_FMTDATA) { 5380 if (cdb->byte2 & SF_LONGLIST) 5381 length = sizeof(struct scsi_format_header_long); 5382 else 5383 length = sizeof(struct scsi_format_header_short); 5384 } 5385 5386 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5387 && (length > 0)) { 5388 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5389 ctsio->kern_data_len = length; 5390 ctsio->kern_total_len = length; 5391 ctsio->kern_data_resid = 0; 5392 ctsio->kern_rel_offset = 0; 5393 ctsio->kern_sg_entries = 0; 5394 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5395 ctsio->be_move_done = ctl_config_move_done; 5396 ctl_datamove((union ctl_io *)ctsio); 5397 5398 return (CTL_RETVAL_COMPLETE); 5399 } 5400 5401 defect_list_len = 0; 5402 5403 if (cdb->byte2 & SF_FMTDATA) { 5404 if (cdb->byte2 & SF_LONGLIST) { 5405 struct scsi_format_header_long *header; 5406 5407 header = (struct scsi_format_header_long *) 5408 ctsio->kern_data_ptr; 5409 5410 defect_list_len = scsi_4btoul(header->defect_list_len); 5411 if (defect_list_len != 0) { 5412 ctl_set_invalid_field(ctsio, 5413 /*sks_valid*/ 1, 5414 /*command*/ 0, 5415 /*field*/ 2, 5416 /*bit_valid*/ 0, 5417 /*bit*/ 0); 5418 goto bailout; 5419 } 5420 } else { 5421 struct scsi_format_header_short *header; 5422 5423 header = (struct scsi_format_header_short *) 5424 ctsio->kern_data_ptr; 5425 5426 defect_list_len = scsi_2btoul(header->defect_list_len); 5427 if (defect_list_len != 0) { 5428 ctl_set_invalid_field(ctsio, 5429 /*sks_valid*/ 1, 5430 /*command*/ 0, 5431 /*field*/ 2, 5432 /*bit_valid*/ 0, 5433 /*bit*/ 0); 5434 goto bailout; 5435 } 5436 } 5437 } 5438 5439 /* 5440 * The format command will clear out the "Medium format corrupted" 5441 * status if set by the configuration code. That status is really 5442 * just a way to notify the host that we have lost the media, and 5443 * get them to issue a command that will basically make them think 5444 * they're blowing away the media. 5445 */ 5446 mtx_lock(&lun->lun_lock); 5447 lun->flags &= ~CTL_LUN_INOPERABLE; 5448 mtx_unlock(&lun->lun_lock); 5449 5450 ctsio->scsi_status = SCSI_STATUS_OK; 5451 ctsio->io_hdr.status = CTL_SUCCESS; 5452bailout: 5453 5454 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5455 free(ctsio->kern_data_ptr, M_CTL); 5456 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5457 } 5458 5459 ctl_done((union ctl_io *)ctsio); 5460 return (CTL_RETVAL_COMPLETE); 5461} 5462 5463int 5464ctl_read_buffer(struct ctl_scsiio *ctsio) 5465{ 5466 struct scsi_read_buffer *cdb; 5467 struct ctl_lun *lun; 5468 int buffer_offset, len; 5469 static uint8_t descr[4]; 5470 static uint8_t echo_descr[4] = { 0 }; 5471 5472 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5473 5474 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5475 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5476 5477 if (lun->flags & CTL_LUN_PR_RESERVED) { 5478 uint32_t residx; 5479 5480 /* 5481 * XXX KDM need a lock here. 5482 */ 5483 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5484 if ((lun->res_type == SPR_TYPE_EX_AC 5485 && residx != lun->pr_res_idx) 5486 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5487 || lun->res_type == SPR_TYPE_EX_AC_AR) 5488 && !lun->per_res[residx].registered)) { 5489 ctl_set_reservation_conflict(ctsio); 5490 ctl_done((union ctl_io *)ctsio); 5491 return (CTL_RETVAL_COMPLETE); 5492 } 5493 } 5494 5495 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5496 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5497 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5498 ctl_set_invalid_field(ctsio, 5499 /*sks_valid*/ 1, 5500 /*command*/ 1, 5501 /*field*/ 1, 5502 /*bit_valid*/ 1, 5503 /*bit*/ 4); 5504 ctl_done((union ctl_io *)ctsio); 5505 return (CTL_RETVAL_COMPLETE); 5506 } 5507 5508 len = scsi_3btoul(cdb->length); 5509 buffer_offset = scsi_3btoul(cdb->offset); 5510 5511 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5512 ctl_set_invalid_field(ctsio, 5513 /*sks_valid*/ 1, 5514 /*command*/ 1, 5515 /*field*/ 6, 5516 /*bit_valid*/ 0, 5517 /*bit*/ 0); 5518 ctl_done((union ctl_io *)ctsio); 5519 return (CTL_RETVAL_COMPLETE); 5520 } 5521 5522 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5523 descr[0] = 0; 5524 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5525 ctsio->kern_data_ptr = descr; 5526 len = min(len, sizeof(descr)); 5527 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5528 ctsio->kern_data_ptr = echo_descr; 5529 len = min(len, sizeof(echo_descr)); 5530 } else 5531 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5532 ctsio->kern_data_len = len; 5533 ctsio->kern_total_len = len; 5534 ctsio->kern_data_resid = 0; 5535 ctsio->kern_rel_offset = 0; 5536 ctsio->kern_sg_entries = 0; 5537 ctsio->be_move_done = ctl_config_move_done; 5538 ctl_datamove((union ctl_io *)ctsio); 5539 5540 return (CTL_RETVAL_COMPLETE); 5541} 5542 5543int 5544ctl_write_buffer(struct ctl_scsiio *ctsio) 5545{ 5546 struct scsi_write_buffer *cdb; 5547 struct ctl_lun *lun; 5548 int buffer_offset, len; 5549 5550 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5551 5552 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5553 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5554 5555 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5556 ctl_set_invalid_field(ctsio, 5557 /*sks_valid*/ 1, 5558 /*command*/ 1, 5559 /*field*/ 1, 5560 /*bit_valid*/ 1, 5561 /*bit*/ 4); 5562 ctl_done((union ctl_io *)ctsio); 5563 return (CTL_RETVAL_COMPLETE); 5564 } 5565 5566 len = scsi_3btoul(cdb->length); 5567 buffer_offset = scsi_3btoul(cdb->offset); 5568 5569 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5570 ctl_set_invalid_field(ctsio, 5571 /*sks_valid*/ 1, 5572 /*command*/ 1, 5573 /*field*/ 6, 5574 /*bit_valid*/ 0, 5575 /*bit*/ 0); 5576 ctl_done((union ctl_io *)ctsio); 5577 return (CTL_RETVAL_COMPLETE); 5578 } 5579 5580 /* 5581 * If we've got a kernel request that hasn't been malloced yet, 5582 * malloc it and tell the caller the data buffer is here. 5583 */ 5584 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5585 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5586 ctsio->kern_data_len = len; 5587 ctsio->kern_total_len = len; 5588 ctsio->kern_data_resid = 0; 5589 ctsio->kern_rel_offset = 0; 5590 ctsio->kern_sg_entries = 0; 5591 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5592 ctsio->be_move_done = ctl_config_move_done; 5593 ctl_datamove((union ctl_io *)ctsio); 5594 5595 return (CTL_RETVAL_COMPLETE); 5596 } 5597 5598 ctl_done((union ctl_io *)ctsio); 5599 5600 return (CTL_RETVAL_COMPLETE); 5601} 5602 5603int 5604ctl_write_same(struct ctl_scsiio *ctsio) 5605{ 5606 struct ctl_lun *lun; 5607 struct ctl_lba_len_flags *lbalen; 5608 uint64_t lba; 5609 uint32_t num_blocks; 5610 int len, retval; 5611 uint8_t byte2; 5612 5613 retval = CTL_RETVAL_COMPLETE; 5614 5615 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5616 5617 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5618 5619 switch (ctsio->cdb[0]) { 5620 case WRITE_SAME_10: { 5621 struct scsi_write_same_10 *cdb; 5622 5623 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5624 5625 lba = scsi_4btoul(cdb->addr); 5626 num_blocks = scsi_2btoul(cdb->length); 5627 byte2 = cdb->byte2; 5628 break; 5629 } 5630 case WRITE_SAME_16: { 5631 struct scsi_write_same_16 *cdb; 5632 5633 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5634 5635 lba = scsi_8btou64(cdb->addr); 5636 num_blocks = scsi_4btoul(cdb->length); 5637 byte2 = cdb->byte2; 5638 break; 5639 } 5640 default: 5641 /* 5642 * We got a command we don't support. This shouldn't 5643 * happen, commands should be filtered out above us. 5644 */ 5645 ctl_set_invalid_opcode(ctsio); 5646 ctl_done((union ctl_io *)ctsio); 5647 5648 return (CTL_RETVAL_COMPLETE); 5649 break; /* NOTREACHED */ 5650 } 5651 5652 /* 5653 * The first check is to make sure we're in bounds, the second 5654 * check is to catch wrap-around problems. If the lba + num blocks 5655 * is less than the lba, then we've wrapped around and the block 5656 * range is invalid anyway. 5657 */ 5658 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5659 || ((lba + num_blocks) < lba)) { 5660 ctl_set_lba_out_of_range(ctsio); 5661 ctl_done((union ctl_io *)ctsio); 5662 return (CTL_RETVAL_COMPLETE); 5663 } 5664 5665 /* Zero number of blocks means "to the last logical block" */ 5666 if (num_blocks == 0) { 5667 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5668 ctl_set_invalid_field(ctsio, 5669 /*sks_valid*/ 0, 5670 /*command*/ 1, 5671 /*field*/ 0, 5672 /*bit_valid*/ 0, 5673 /*bit*/ 0); 5674 ctl_done((union ctl_io *)ctsio); 5675 return (CTL_RETVAL_COMPLETE); 5676 } 5677 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5678 } 5679 5680 len = lun->be_lun->blocksize; 5681 5682 /* 5683 * If we've got a kernel request that hasn't been malloced yet, 5684 * malloc it and tell the caller the data buffer is here. 5685 */ 5686 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5687 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5688 ctsio->kern_data_len = len; 5689 ctsio->kern_total_len = len; 5690 ctsio->kern_data_resid = 0; 5691 ctsio->kern_rel_offset = 0; 5692 ctsio->kern_sg_entries = 0; 5693 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5694 ctsio->be_move_done = ctl_config_move_done; 5695 ctl_datamove((union ctl_io *)ctsio); 5696 5697 return (CTL_RETVAL_COMPLETE); 5698 } 5699 5700 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5701 lbalen->lba = lba; 5702 lbalen->len = num_blocks; 5703 lbalen->flags = byte2; 5704 retval = lun->backend->config_write((union ctl_io *)ctsio); 5705 5706 return (retval); 5707} 5708 5709int 5710ctl_unmap(struct ctl_scsiio *ctsio) 5711{ 5712 struct ctl_lun *lun; 5713 struct scsi_unmap *cdb; 5714 struct ctl_ptr_len_flags *ptrlen; 5715 struct scsi_unmap_header *hdr; 5716 struct scsi_unmap_desc *buf, *end; 5717 uint64_t lba; 5718 uint32_t num_blocks; 5719 int len, retval; 5720 uint8_t byte2; 5721 5722 retval = CTL_RETVAL_COMPLETE; 5723 5724 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5725 5726 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5727 cdb = (struct scsi_unmap *)ctsio->cdb; 5728 5729 len = scsi_2btoul(cdb->length); 5730 byte2 = cdb->byte2; 5731 5732 /* 5733 * If we've got a kernel request that hasn't been malloced yet, 5734 * malloc it and tell the caller the data buffer is here. 5735 */ 5736 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5737 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5738 ctsio->kern_data_len = len; 5739 ctsio->kern_total_len = len; 5740 ctsio->kern_data_resid = 0; 5741 ctsio->kern_rel_offset = 0; 5742 ctsio->kern_sg_entries = 0; 5743 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5744 ctsio->be_move_done = ctl_config_move_done; 5745 ctl_datamove((union ctl_io *)ctsio); 5746 5747 return (CTL_RETVAL_COMPLETE); 5748 } 5749 5750 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5751 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5752 if (len < sizeof (*hdr) || 5753 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5754 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5755 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5756 ctl_set_invalid_field(ctsio, 5757 /*sks_valid*/ 0, 5758 /*command*/ 0, 5759 /*field*/ 0, 5760 /*bit_valid*/ 0, 5761 /*bit*/ 0); 5762 ctl_done((union ctl_io *)ctsio); 5763 return (CTL_RETVAL_COMPLETE); 5764 } 5765 len = scsi_2btoul(hdr->desc_length); 5766 buf = (struct scsi_unmap_desc *)(hdr + 1); 5767 end = buf + len / sizeof(*buf); 5768 5769 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5770 ptrlen->ptr = (void *)buf; 5771 ptrlen->len = len; 5772 ptrlen->flags = byte2; 5773 5774 for (; buf < end; buf++) { 5775 lba = scsi_8btou64(buf->lba); 5776 num_blocks = scsi_4btoul(buf->length); 5777 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5778 || ((lba + num_blocks) < lba)) { 5779 ctl_set_lba_out_of_range(ctsio); 5780 ctl_done((union ctl_io *)ctsio); 5781 return (CTL_RETVAL_COMPLETE); 5782 } 5783 } 5784 5785 retval = lun->backend->config_write((union ctl_io *)ctsio); 5786 5787 return (retval); 5788} 5789 5790/* 5791 * Note that this function currently doesn't actually do anything inside 5792 * CTL to enforce things if the DQue bit is turned on. 5793 * 5794 * Also note that this function can't be used in the default case, because 5795 * the DQue bit isn't set in the changeable mask for the control mode page 5796 * anyway. This is just here as an example for how to implement a page 5797 * handler, and a placeholder in case we want to allow the user to turn 5798 * tagged queueing on and off. 5799 * 5800 * The D_SENSE bit handling is functional, however, and will turn 5801 * descriptor sense on and off for a given LUN. 5802 */ 5803int 5804ctl_control_page_handler(struct ctl_scsiio *ctsio, 5805 struct ctl_page_index *page_index, uint8_t *page_ptr) 5806{ 5807 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5808 struct ctl_lun *lun; 5809 struct ctl_softc *softc; 5810 int set_ua; 5811 uint32_t initidx; 5812 5813 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5814 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5815 set_ua = 0; 5816 5817 user_cp = (struct scsi_control_page *)page_ptr; 5818 current_cp = (struct scsi_control_page *) 5819 (page_index->page_data + (page_index->page_len * 5820 CTL_PAGE_CURRENT)); 5821 saved_cp = (struct scsi_control_page *) 5822 (page_index->page_data + (page_index->page_len * 5823 CTL_PAGE_SAVED)); 5824 5825 softc = control_softc; 5826 5827 mtx_lock(&lun->lun_lock); 5828 if (((current_cp->rlec & SCP_DSENSE) == 0) 5829 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5830 /* 5831 * Descriptor sense is currently turned off and the user 5832 * wants to turn it on. 5833 */ 5834 current_cp->rlec |= SCP_DSENSE; 5835 saved_cp->rlec |= SCP_DSENSE; 5836 lun->flags |= CTL_LUN_SENSE_DESC; 5837 set_ua = 1; 5838 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5839 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5840 /* 5841 * Descriptor sense is currently turned on, and the user 5842 * wants to turn it off. 5843 */ 5844 current_cp->rlec &= ~SCP_DSENSE; 5845 saved_cp->rlec &= ~SCP_DSENSE; 5846 lun->flags &= ~CTL_LUN_SENSE_DESC; 5847 set_ua = 1; 5848 } 5849 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 5850 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 5851#ifdef NEEDTOPORT 5852 csevent_log(CSC_CTL | CSC_SHELF_SW | 5853 CTL_UNTAG_TO_UNTAG, 5854 csevent_LogType_Trace, 5855 csevent_Severity_Information, 5856 csevent_AlertLevel_Green, 5857 csevent_FRU_Firmware, 5858 csevent_FRU_Unknown, 5859 "Received untagged to untagged transition"); 5860#endif /* NEEDTOPORT */ 5861 } else { 5862#ifdef NEEDTOPORT 5863 csevent_log(CSC_CTL | CSC_SHELF_SW | 5864 CTL_UNTAG_TO_TAG, 5865 csevent_LogType_ConfigChange, 5866 csevent_Severity_Information, 5867 csevent_AlertLevel_Green, 5868 csevent_FRU_Firmware, 5869 csevent_FRU_Unknown, 5870 "Received untagged to tagged " 5871 "queueing transition"); 5872#endif /* NEEDTOPORT */ 5873 5874 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 5875 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 5876 set_ua = 1; 5877 } 5878 } else { 5879 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 5880#ifdef NEEDTOPORT 5881 csevent_log(CSC_CTL | CSC_SHELF_SW | 5882 CTL_TAG_TO_UNTAG, 5883 csevent_LogType_ConfigChange, 5884 csevent_Severity_Warning, 5885 csevent_AlertLevel_Yellow, 5886 csevent_FRU_Firmware, 5887 csevent_FRU_Unknown, 5888 "Received tagged queueing to untagged " 5889 "transition"); 5890#endif /* NEEDTOPORT */ 5891 5892 current_cp->queue_flags |= SCP_QUEUE_DQUE; 5893 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 5894 set_ua = 1; 5895 } else { 5896#ifdef NEEDTOPORT 5897 csevent_log(CSC_CTL | CSC_SHELF_SW | 5898 CTL_TAG_TO_TAG, 5899 csevent_LogType_Trace, 5900 csevent_Severity_Information, 5901 csevent_AlertLevel_Green, 5902 csevent_FRU_Firmware, 5903 csevent_FRU_Unknown, 5904 "Received tagged queueing to tagged " 5905 "queueing transition"); 5906#endif /* NEEDTOPORT */ 5907 } 5908 } 5909 if (set_ua != 0) { 5910 int i; 5911 /* 5912 * Let other initiators know that the mode 5913 * parameters for this LUN have changed. 5914 */ 5915 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 5916 if (i == initidx) 5917 continue; 5918 5919 lun->pending_sense[i].ua_pending |= 5920 CTL_UA_MODE_CHANGE; 5921 } 5922 } 5923 mtx_unlock(&lun->lun_lock); 5924 5925 return (0); 5926} 5927 5928int 5929ctl_power_sp_handler(struct ctl_scsiio *ctsio, 5930 struct ctl_page_index *page_index, uint8_t *page_ptr) 5931{ 5932 return (0); 5933} 5934 5935int 5936ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 5937 struct ctl_page_index *page_index, int pc) 5938{ 5939 struct copan_power_subpage *page; 5940 5941 page = (struct copan_power_subpage *)page_index->page_data + 5942 (page_index->page_len * pc); 5943 5944 switch (pc) { 5945 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5946 /* 5947 * We don't update the changable bits for this page. 5948 */ 5949 break; 5950 case SMS_PAGE_CTRL_CURRENT >> 6: 5951 case SMS_PAGE_CTRL_DEFAULT >> 6: 5952 case SMS_PAGE_CTRL_SAVED >> 6: 5953#ifdef NEEDTOPORT 5954 ctl_update_power_subpage(page); 5955#endif 5956 break; 5957 default: 5958#ifdef NEEDTOPORT 5959 EPRINT(0, "Invalid PC %d!!", pc); 5960#endif 5961 break; 5962 } 5963 return (0); 5964} 5965 5966 5967int 5968ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 5969 struct ctl_page_index *page_index, uint8_t *page_ptr) 5970{ 5971 struct copan_aps_subpage *user_sp; 5972 struct copan_aps_subpage *current_sp; 5973 union ctl_modepage_info *modepage_info; 5974 struct ctl_softc *softc; 5975 struct ctl_lun *lun; 5976 int retval; 5977 5978 retval = CTL_RETVAL_COMPLETE; 5979 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5980 (page_index->page_len * CTL_PAGE_CURRENT)); 5981 softc = control_softc; 5982 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5983 5984 user_sp = (struct copan_aps_subpage *)page_ptr; 5985 5986 modepage_info = (union ctl_modepage_info *) 5987 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5988 5989 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 5990 modepage_info->header.subpage = page_index->subpage; 5991 modepage_info->aps.lock_active = user_sp->lock_active; 5992 5993 mtx_lock(&softc->ctl_lock); 5994 5995 /* 5996 * If there is a request to lock the LUN and another LUN is locked 5997 * this is an error. If the requested LUN is already locked ignore 5998 * the request. If no LUN is locked attempt to lock it. 5999 * if there is a request to unlock the LUN and the LUN is currently 6000 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6001 * if another LUN is locked or no LUN is locked. 6002 */ 6003 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6004 if (softc->aps_locked_lun == lun->lun) { 6005 /* 6006 * This LUN is already locked, so we're done. 6007 */ 6008 retval = CTL_RETVAL_COMPLETE; 6009 } else if (softc->aps_locked_lun == 0) { 6010 /* 6011 * No one has the lock, pass the request to the 6012 * backend. 6013 */ 6014 retval = lun->backend->config_write( 6015 (union ctl_io *)ctsio); 6016 } else { 6017 /* 6018 * Someone else has the lock, throw out the request. 6019 */ 6020 ctl_set_already_locked(ctsio); 6021 free(ctsio->kern_data_ptr, M_CTL); 6022 ctl_done((union ctl_io *)ctsio); 6023 6024 /* 6025 * Set the return value so that ctl_do_mode_select() 6026 * won't try to complete the command. We already 6027 * completed it here. 6028 */ 6029 retval = CTL_RETVAL_ERROR; 6030 } 6031 } else if (softc->aps_locked_lun == lun->lun) { 6032 /* 6033 * This LUN is locked, so pass the unlock request to the 6034 * backend. 6035 */ 6036 retval = lun->backend->config_write((union ctl_io *)ctsio); 6037 } 6038 mtx_unlock(&softc->ctl_lock); 6039 6040 return (retval); 6041} 6042 6043int 6044ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6045 struct ctl_page_index *page_index, 6046 uint8_t *page_ptr) 6047{ 6048 uint8_t *c; 6049 int i; 6050 6051 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6052 ctl_time_io_secs = 6053 (c[0] << 8) | 6054 (c[1] << 0) | 6055 0; 6056 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6057 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6058 printf("page data:"); 6059 for (i=0; i<8; i++) 6060 printf(" %.2x",page_ptr[i]); 6061 printf("\n"); 6062 return (0); 6063} 6064 6065int 6066ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6067 struct ctl_page_index *page_index, 6068 int pc) 6069{ 6070 struct copan_debugconf_subpage *page; 6071 6072 page = (struct copan_debugconf_subpage *)page_index->page_data + 6073 (page_index->page_len * pc); 6074 6075 switch (pc) { 6076 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6077 case SMS_PAGE_CTRL_DEFAULT >> 6: 6078 case SMS_PAGE_CTRL_SAVED >> 6: 6079 /* 6080 * We don't update the changable or default bits for this page. 6081 */ 6082 break; 6083 case SMS_PAGE_CTRL_CURRENT >> 6: 6084 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6085 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6086 break; 6087 default: 6088#ifdef NEEDTOPORT 6089 EPRINT(0, "Invalid PC %d!!", pc); 6090#endif /* NEEDTOPORT */ 6091 break; 6092 } 6093 return (0); 6094} 6095 6096 6097static int 6098ctl_do_mode_select(union ctl_io *io) 6099{ 6100 struct scsi_mode_page_header *page_header; 6101 struct ctl_page_index *page_index; 6102 struct ctl_scsiio *ctsio; 6103 int control_dev, page_len; 6104 int page_len_offset, page_len_size; 6105 union ctl_modepage_info *modepage_info; 6106 struct ctl_lun *lun; 6107 int *len_left, *len_used; 6108 int retval, i; 6109 6110 ctsio = &io->scsiio; 6111 page_index = NULL; 6112 page_len = 0; 6113 retval = CTL_RETVAL_COMPLETE; 6114 6115 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6116 6117 if (lun->be_lun->lun_type != T_DIRECT) 6118 control_dev = 1; 6119 else 6120 control_dev = 0; 6121 6122 modepage_info = (union ctl_modepage_info *) 6123 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6124 len_left = &modepage_info->header.len_left; 6125 len_used = &modepage_info->header.len_used; 6126 6127do_next_page: 6128 6129 page_header = (struct scsi_mode_page_header *) 6130 (ctsio->kern_data_ptr + *len_used); 6131 6132 if (*len_left == 0) { 6133 free(ctsio->kern_data_ptr, M_CTL); 6134 ctl_set_success(ctsio); 6135 ctl_done((union ctl_io *)ctsio); 6136 return (CTL_RETVAL_COMPLETE); 6137 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6138 6139 free(ctsio->kern_data_ptr, M_CTL); 6140 ctl_set_param_len_error(ctsio); 6141 ctl_done((union ctl_io *)ctsio); 6142 return (CTL_RETVAL_COMPLETE); 6143 6144 } else if ((page_header->page_code & SMPH_SPF) 6145 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6146 6147 free(ctsio->kern_data_ptr, M_CTL); 6148 ctl_set_param_len_error(ctsio); 6149 ctl_done((union ctl_io *)ctsio); 6150 return (CTL_RETVAL_COMPLETE); 6151 } 6152 6153 6154 /* 6155 * XXX KDM should we do something with the block descriptor? 6156 */ 6157 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6158 6159 if ((control_dev != 0) 6160 && (lun->mode_pages.index[i].page_flags & 6161 CTL_PAGE_FLAG_DISK_ONLY)) 6162 continue; 6163 6164 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6165 (page_header->page_code & SMPH_PC_MASK)) 6166 continue; 6167 6168 /* 6169 * If neither page has a subpage code, then we've got a 6170 * match. 6171 */ 6172 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6173 && ((page_header->page_code & SMPH_SPF) == 0)) { 6174 page_index = &lun->mode_pages.index[i]; 6175 page_len = page_header->page_length; 6176 break; 6177 } 6178 6179 /* 6180 * If both pages have subpages, then the subpage numbers 6181 * have to match. 6182 */ 6183 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6184 && (page_header->page_code & SMPH_SPF)) { 6185 struct scsi_mode_page_header_sp *sph; 6186 6187 sph = (struct scsi_mode_page_header_sp *)page_header; 6188 6189 if (lun->mode_pages.index[i].subpage == 6190 sph->subpage) { 6191 page_index = &lun->mode_pages.index[i]; 6192 page_len = scsi_2btoul(sph->page_length); 6193 break; 6194 } 6195 } 6196 } 6197 6198 /* 6199 * If we couldn't find the page, or if we don't have a mode select 6200 * handler for it, send back an error to the user. 6201 */ 6202 if ((page_index == NULL) 6203 || (page_index->select_handler == NULL)) { 6204 ctl_set_invalid_field(ctsio, 6205 /*sks_valid*/ 1, 6206 /*command*/ 0, 6207 /*field*/ *len_used, 6208 /*bit_valid*/ 0, 6209 /*bit*/ 0); 6210 free(ctsio->kern_data_ptr, M_CTL); 6211 ctl_done((union ctl_io *)ctsio); 6212 return (CTL_RETVAL_COMPLETE); 6213 } 6214 6215 if (page_index->page_code & SMPH_SPF) { 6216 page_len_offset = 2; 6217 page_len_size = 2; 6218 } else { 6219 page_len_size = 1; 6220 page_len_offset = 1; 6221 } 6222 6223 /* 6224 * If the length the initiator gives us isn't the one we specify in 6225 * the mode page header, or if they didn't specify enough data in 6226 * the CDB to avoid truncating this page, kick out the request. 6227 */ 6228 if ((page_len != (page_index->page_len - page_len_offset - 6229 page_len_size)) 6230 || (*len_left < page_index->page_len)) { 6231 6232 6233 ctl_set_invalid_field(ctsio, 6234 /*sks_valid*/ 1, 6235 /*command*/ 0, 6236 /*field*/ *len_used + page_len_offset, 6237 /*bit_valid*/ 0, 6238 /*bit*/ 0); 6239 free(ctsio->kern_data_ptr, M_CTL); 6240 ctl_done((union ctl_io *)ctsio); 6241 return (CTL_RETVAL_COMPLETE); 6242 } 6243 6244 /* 6245 * Run through the mode page, checking to make sure that the bits 6246 * the user changed are actually legal for him to change. 6247 */ 6248 for (i = 0; i < page_index->page_len; i++) { 6249 uint8_t *user_byte, *change_mask, *current_byte; 6250 int bad_bit; 6251 int j; 6252 6253 user_byte = (uint8_t *)page_header + i; 6254 change_mask = page_index->page_data + 6255 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6256 current_byte = page_index->page_data + 6257 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6258 6259 /* 6260 * Check to see whether the user set any bits in this byte 6261 * that he is not allowed to set. 6262 */ 6263 if ((*user_byte & ~(*change_mask)) == 6264 (*current_byte & ~(*change_mask))) 6265 continue; 6266 6267 /* 6268 * Go through bit by bit to determine which one is illegal. 6269 */ 6270 bad_bit = 0; 6271 for (j = 7; j >= 0; j--) { 6272 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6273 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6274 bad_bit = i; 6275 break; 6276 } 6277 } 6278 ctl_set_invalid_field(ctsio, 6279 /*sks_valid*/ 1, 6280 /*command*/ 0, 6281 /*field*/ *len_used + i, 6282 /*bit_valid*/ 1, 6283 /*bit*/ bad_bit); 6284 free(ctsio->kern_data_ptr, M_CTL); 6285 ctl_done((union ctl_io *)ctsio); 6286 return (CTL_RETVAL_COMPLETE); 6287 } 6288 6289 /* 6290 * Decrement these before we call the page handler, since we may 6291 * end up getting called back one way or another before the handler 6292 * returns to this context. 6293 */ 6294 *len_left -= page_index->page_len; 6295 *len_used += page_index->page_len; 6296 6297 retval = page_index->select_handler(ctsio, page_index, 6298 (uint8_t *)page_header); 6299 6300 /* 6301 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6302 * wait until this queued command completes to finish processing 6303 * the mode page. If it returns anything other than 6304 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6305 * already set the sense information, freed the data pointer, and 6306 * completed the io for us. 6307 */ 6308 if (retval != CTL_RETVAL_COMPLETE) 6309 goto bailout_no_done; 6310 6311 /* 6312 * If the initiator sent us more than one page, parse the next one. 6313 */ 6314 if (*len_left > 0) 6315 goto do_next_page; 6316 6317 ctl_set_success(ctsio); 6318 free(ctsio->kern_data_ptr, M_CTL); 6319 ctl_done((union ctl_io *)ctsio); 6320 6321bailout_no_done: 6322 6323 return (CTL_RETVAL_COMPLETE); 6324 6325} 6326 6327int 6328ctl_mode_select(struct ctl_scsiio *ctsio) 6329{ 6330 int param_len, pf, sp; 6331 int header_size, bd_len; 6332 int len_left, len_used; 6333 struct ctl_page_index *page_index; 6334 struct ctl_lun *lun; 6335 int control_dev, page_len; 6336 union ctl_modepage_info *modepage_info; 6337 int retval; 6338 6339 pf = 0; 6340 sp = 0; 6341 page_len = 0; 6342 len_used = 0; 6343 len_left = 0; 6344 retval = 0; 6345 bd_len = 0; 6346 page_index = NULL; 6347 6348 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6349 6350 if (lun->be_lun->lun_type != T_DIRECT) 6351 control_dev = 1; 6352 else 6353 control_dev = 0; 6354 6355 switch (ctsio->cdb[0]) { 6356 case MODE_SELECT_6: { 6357 struct scsi_mode_select_6 *cdb; 6358 6359 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6360 6361 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6362 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6363 6364 param_len = cdb->length; 6365 header_size = sizeof(struct scsi_mode_header_6); 6366 break; 6367 } 6368 case MODE_SELECT_10: { 6369 struct scsi_mode_select_10 *cdb; 6370 6371 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6372 6373 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6374 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6375 6376 param_len = scsi_2btoul(cdb->length); 6377 header_size = sizeof(struct scsi_mode_header_10); 6378 break; 6379 } 6380 default: 6381 ctl_set_invalid_opcode(ctsio); 6382 ctl_done((union ctl_io *)ctsio); 6383 return (CTL_RETVAL_COMPLETE); 6384 break; /* NOTREACHED */ 6385 } 6386 6387 /* 6388 * From SPC-3: 6389 * "A parameter list length of zero indicates that the Data-Out Buffer 6390 * shall be empty. This condition shall not be considered as an error." 6391 */ 6392 if (param_len == 0) { 6393 ctl_set_success(ctsio); 6394 ctl_done((union ctl_io *)ctsio); 6395 return (CTL_RETVAL_COMPLETE); 6396 } 6397 6398 /* 6399 * Since we'll hit this the first time through, prior to 6400 * allocation, we don't need to free a data buffer here. 6401 */ 6402 if (param_len < header_size) { 6403 ctl_set_param_len_error(ctsio); 6404 ctl_done((union ctl_io *)ctsio); 6405 return (CTL_RETVAL_COMPLETE); 6406 } 6407 6408 /* 6409 * Allocate the data buffer and grab the user's data. In theory, 6410 * we shouldn't have to sanity check the parameter list length here 6411 * because the maximum size is 64K. We should be able to malloc 6412 * that much without too many problems. 6413 */ 6414 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6415 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6416 ctsio->kern_data_len = param_len; 6417 ctsio->kern_total_len = param_len; 6418 ctsio->kern_data_resid = 0; 6419 ctsio->kern_rel_offset = 0; 6420 ctsio->kern_sg_entries = 0; 6421 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6422 ctsio->be_move_done = ctl_config_move_done; 6423 ctl_datamove((union ctl_io *)ctsio); 6424 6425 return (CTL_RETVAL_COMPLETE); 6426 } 6427 6428 switch (ctsio->cdb[0]) { 6429 case MODE_SELECT_6: { 6430 struct scsi_mode_header_6 *mh6; 6431 6432 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6433 bd_len = mh6->blk_desc_len; 6434 break; 6435 } 6436 case MODE_SELECT_10: { 6437 struct scsi_mode_header_10 *mh10; 6438 6439 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6440 bd_len = scsi_2btoul(mh10->blk_desc_len); 6441 break; 6442 } 6443 default: 6444 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6445 break; 6446 } 6447 6448 if (param_len < (header_size + bd_len)) { 6449 free(ctsio->kern_data_ptr, M_CTL); 6450 ctl_set_param_len_error(ctsio); 6451 ctl_done((union ctl_io *)ctsio); 6452 return (CTL_RETVAL_COMPLETE); 6453 } 6454 6455 /* 6456 * Set the IO_CONT flag, so that if this I/O gets passed to 6457 * ctl_config_write_done(), it'll get passed back to 6458 * ctl_do_mode_select() for further processing, or completion if 6459 * we're all done. 6460 */ 6461 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6462 ctsio->io_cont = ctl_do_mode_select; 6463 6464 modepage_info = (union ctl_modepage_info *) 6465 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6466 6467 memset(modepage_info, 0, sizeof(*modepage_info)); 6468 6469 len_left = param_len - header_size - bd_len; 6470 len_used = header_size + bd_len; 6471 6472 modepage_info->header.len_left = len_left; 6473 modepage_info->header.len_used = len_used; 6474 6475 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6476} 6477 6478int 6479ctl_mode_sense(struct ctl_scsiio *ctsio) 6480{ 6481 struct ctl_lun *lun; 6482 int pc, page_code, dbd, llba, subpage; 6483 int alloc_len, page_len, header_len, total_len; 6484 struct scsi_mode_block_descr *block_desc; 6485 struct ctl_page_index *page_index; 6486 int control_dev; 6487 6488 dbd = 0; 6489 llba = 0; 6490 block_desc = NULL; 6491 page_index = NULL; 6492 6493 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6494 6495 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6496 6497 if (lun->be_lun->lun_type != T_DIRECT) 6498 control_dev = 1; 6499 else 6500 control_dev = 0; 6501 6502 if (lun->flags & CTL_LUN_PR_RESERVED) { 6503 uint32_t residx; 6504 6505 /* 6506 * XXX KDM need a lock here. 6507 */ 6508 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6509 if ((lun->res_type == SPR_TYPE_EX_AC 6510 && residx != lun->pr_res_idx) 6511 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6512 || lun->res_type == SPR_TYPE_EX_AC_AR) 6513 && !lun->per_res[residx].registered)) { 6514 ctl_set_reservation_conflict(ctsio); 6515 ctl_done((union ctl_io *)ctsio); 6516 return (CTL_RETVAL_COMPLETE); 6517 } 6518 } 6519 6520 switch (ctsio->cdb[0]) { 6521 case MODE_SENSE_6: { 6522 struct scsi_mode_sense_6 *cdb; 6523 6524 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6525 6526 header_len = sizeof(struct scsi_mode_hdr_6); 6527 if (cdb->byte2 & SMS_DBD) 6528 dbd = 1; 6529 else 6530 header_len += sizeof(struct scsi_mode_block_descr); 6531 6532 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6533 page_code = cdb->page & SMS_PAGE_CODE; 6534 subpage = cdb->subpage; 6535 alloc_len = cdb->length; 6536 break; 6537 } 6538 case MODE_SENSE_10: { 6539 struct scsi_mode_sense_10 *cdb; 6540 6541 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6542 6543 header_len = sizeof(struct scsi_mode_hdr_10); 6544 6545 if (cdb->byte2 & SMS_DBD) 6546 dbd = 1; 6547 else 6548 header_len += sizeof(struct scsi_mode_block_descr); 6549 if (cdb->byte2 & SMS10_LLBAA) 6550 llba = 1; 6551 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6552 page_code = cdb->page & SMS_PAGE_CODE; 6553 subpage = cdb->subpage; 6554 alloc_len = scsi_2btoul(cdb->length); 6555 break; 6556 } 6557 default: 6558 ctl_set_invalid_opcode(ctsio); 6559 ctl_done((union ctl_io *)ctsio); 6560 return (CTL_RETVAL_COMPLETE); 6561 break; /* NOTREACHED */ 6562 } 6563 6564 /* 6565 * We have to make a first pass through to calculate the size of 6566 * the pages that match the user's query. Then we allocate enough 6567 * memory to hold it, and actually copy the data into the buffer. 6568 */ 6569 switch (page_code) { 6570 case SMS_ALL_PAGES_PAGE: { 6571 int i; 6572 6573 page_len = 0; 6574 6575 /* 6576 * At the moment, values other than 0 and 0xff here are 6577 * reserved according to SPC-3. 6578 */ 6579 if ((subpage != SMS_SUBPAGE_PAGE_0) 6580 && (subpage != SMS_SUBPAGE_ALL)) { 6581 ctl_set_invalid_field(ctsio, 6582 /*sks_valid*/ 1, 6583 /*command*/ 1, 6584 /*field*/ 3, 6585 /*bit_valid*/ 0, 6586 /*bit*/ 0); 6587 ctl_done((union ctl_io *)ctsio); 6588 return (CTL_RETVAL_COMPLETE); 6589 } 6590 6591 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6592 if ((control_dev != 0) 6593 && (lun->mode_pages.index[i].page_flags & 6594 CTL_PAGE_FLAG_DISK_ONLY)) 6595 continue; 6596 6597 /* 6598 * We don't use this subpage if the user didn't 6599 * request all subpages. 6600 */ 6601 if ((lun->mode_pages.index[i].subpage != 0) 6602 && (subpage == SMS_SUBPAGE_PAGE_0)) 6603 continue; 6604 6605#if 0 6606 printf("found page %#x len %d\n", 6607 lun->mode_pages.index[i].page_code & 6608 SMPH_PC_MASK, 6609 lun->mode_pages.index[i].page_len); 6610#endif 6611 page_len += lun->mode_pages.index[i].page_len; 6612 } 6613 break; 6614 } 6615 default: { 6616 int i; 6617 6618 page_len = 0; 6619 6620 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6621 /* Look for the right page code */ 6622 if ((lun->mode_pages.index[i].page_code & 6623 SMPH_PC_MASK) != page_code) 6624 continue; 6625 6626 /* Look for the right subpage or the subpage wildcard*/ 6627 if ((lun->mode_pages.index[i].subpage != subpage) 6628 && (subpage != SMS_SUBPAGE_ALL)) 6629 continue; 6630 6631 /* Make sure the page is supported for this dev type */ 6632 if ((control_dev != 0) 6633 && (lun->mode_pages.index[i].page_flags & 6634 CTL_PAGE_FLAG_DISK_ONLY)) 6635 continue; 6636 6637#if 0 6638 printf("found page %#x len %d\n", 6639 lun->mode_pages.index[i].page_code & 6640 SMPH_PC_MASK, 6641 lun->mode_pages.index[i].page_len); 6642#endif 6643 6644 page_len += lun->mode_pages.index[i].page_len; 6645 } 6646 6647 if (page_len == 0) { 6648 ctl_set_invalid_field(ctsio, 6649 /*sks_valid*/ 1, 6650 /*command*/ 1, 6651 /*field*/ 2, 6652 /*bit_valid*/ 1, 6653 /*bit*/ 5); 6654 ctl_done((union ctl_io *)ctsio); 6655 return (CTL_RETVAL_COMPLETE); 6656 } 6657 break; 6658 } 6659 } 6660 6661 total_len = header_len + page_len; 6662#if 0 6663 printf("header_len = %d, page_len = %d, total_len = %d\n", 6664 header_len, page_len, total_len); 6665#endif 6666 6667 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6668 ctsio->kern_sg_entries = 0; 6669 ctsio->kern_data_resid = 0; 6670 ctsio->kern_rel_offset = 0; 6671 if (total_len < alloc_len) { 6672 ctsio->residual = alloc_len - total_len; 6673 ctsio->kern_data_len = total_len; 6674 ctsio->kern_total_len = total_len; 6675 } else { 6676 ctsio->residual = 0; 6677 ctsio->kern_data_len = alloc_len; 6678 ctsio->kern_total_len = alloc_len; 6679 } 6680 6681 switch (ctsio->cdb[0]) { 6682 case MODE_SENSE_6: { 6683 struct scsi_mode_hdr_6 *header; 6684 6685 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6686 6687 header->datalen = ctl_min(total_len - 1, 254); 6688 6689 if (dbd) 6690 header->block_descr_len = 0; 6691 else 6692 header->block_descr_len = 6693 sizeof(struct scsi_mode_block_descr); 6694 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6695 break; 6696 } 6697 case MODE_SENSE_10: { 6698 struct scsi_mode_hdr_10 *header; 6699 int datalen; 6700 6701 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6702 6703 datalen = ctl_min(total_len - 2, 65533); 6704 scsi_ulto2b(datalen, header->datalen); 6705 if (dbd) 6706 scsi_ulto2b(0, header->block_descr_len); 6707 else 6708 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6709 header->block_descr_len); 6710 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6711 break; 6712 } 6713 default: 6714 panic("invalid CDB type %#x", ctsio->cdb[0]); 6715 break; /* NOTREACHED */ 6716 } 6717 6718 /* 6719 * If we've got a disk, use its blocksize in the block 6720 * descriptor. Otherwise, just set it to 0. 6721 */ 6722 if (dbd == 0) { 6723 if (control_dev != 0) 6724 scsi_ulto3b(lun->be_lun->blocksize, 6725 block_desc->block_len); 6726 else 6727 scsi_ulto3b(0, block_desc->block_len); 6728 } 6729 6730 switch (page_code) { 6731 case SMS_ALL_PAGES_PAGE: { 6732 int i, data_used; 6733 6734 data_used = header_len; 6735 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6736 struct ctl_page_index *page_index; 6737 6738 page_index = &lun->mode_pages.index[i]; 6739 6740 if ((control_dev != 0) 6741 && (page_index->page_flags & 6742 CTL_PAGE_FLAG_DISK_ONLY)) 6743 continue; 6744 6745 /* 6746 * We don't use this subpage if the user didn't 6747 * request all subpages. We already checked (above) 6748 * to make sure the user only specified a subpage 6749 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6750 */ 6751 if ((page_index->subpage != 0) 6752 && (subpage == SMS_SUBPAGE_PAGE_0)) 6753 continue; 6754 6755 /* 6756 * Call the handler, if it exists, to update the 6757 * page to the latest values. 6758 */ 6759 if (page_index->sense_handler != NULL) 6760 page_index->sense_handler(ctsio, page_index,pc); 6761 6762 memcpy(ctsio->kern_data_ptr + data_used, 6763 page_index->page_data + 6764 (page_index->page_len * pc), 6765 page_index->page_len); 6766 data_used += page_index->page_len; 6767 } 6768 break; 6769 } 6770 default: { 6771 int i, data_used; 6772 6773 data_used = header_len; 6774 6775 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6776 struct ctl_page_index *page_index; 6777 6778 page_index = &lun->mode_pages.index[i]; 6779 6780 /* Look for the right page code */ 6781 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6782 continue; 6783 6784 /* Look for the right subpage or the subpage wildcard*/ 6785 if ((page_index->subpage != subpage) 6786 && (subpage != SMS_SUBPAGE_ALL)) 6787 continue; 6788 6789 /* Make sure the page is supported for this dev type */ 6790 if ((control_dev != 0) 6791 && (page_index->page_flags & 6792 CTL_PAGE_FLAG_DISK_ONLY)) 6793 continue; 6794 6795 /* 6796 * Call the handler, if it exists, to update the 6797 * page to the latest values. 6798 */ 6799 if (page_index->sense_handler != NULL) 6800 page_index->sense_handler(ctsio, page_index,pc); 6801 6802 memcpy(ctsio->kern_data_ptr + data_used, 6803 page_index->page_data + 6804 (page_index->page_len * pc), 6805 page_index->page_len); 6806 data_used += page_index->page_len; 6807 } 6808 break; 6809 } 6810 } 6811 6812 ctsio->scsi_status = SCSI_STATUS_OK; 6813 6814 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6815 ctsio->be_move_done = ctl_config_move_done; 6816 ctl_datamove((union ctl_io *)ctsio); 6817 6818 return (CTL_RETVAL_COMPLETE); 6819} 6820 6821int 6822ctl_read_capacity(struct ctl_scsiio *ctsio) 6823{ 6824 struct scsi_read_capacity *cdb; 6825 struct scsi_read_capacity_data *data; 6826 struct ctl_lun *lun; 6827 uint32_t lba; 6828 6829 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6830 6831 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6832 6833 lba = scsi_4btoul(cdb->addr); 6834 if (((cdb->pmi & SRC_PMI) == 0) 6835 && (lba != 0)) { 6836 ctl_set_invalid_field(/*ctsio*/ ctsio, 6837 /*sks_valid*/ 1, 6838 /*command*/ 1, 6839 /*field*/ 2, 6840 /*bit_valid*/ 0, 6841 /*bit*/ 0); 6842 ctl_done((union ctl_io *)ctsio); 6843 return (CTL_RETVAL_COMPLETE); 6844 } 6845 6846 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6847 6848 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6849 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6850 ctsio->residual = 0; 6851 ctsio->kern_data_len = sizeof(*data); 6852 ctsio->kern_total_len = sizeof(*data); 6853 ctsio->kern_data_resid = 0; 6854 ctsio->kern_rel_offset = 0; 6855 ctsio->kern_sg_entries = 0; 6856 6857 /* 6858 * If the maximum LBA is greater than 0xfffffffe, the user must 6859 * issue a SERVICE ACTION IN (16) command, with the read capacity 6860 * serivce action set. 6861 */ 6862 if (lun->be_lun->maxlba > 0xfffffffe) 6863 scsi_ulto4b(0xffffffff, data->addr); 6864 else 6865 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6866 6867 /* 6868 * XXX KDM this may not be 512 bytes... 6869 */ 6870 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6871 6872 ctsio->scsi_status = SCSI_STATUS_OK; 6873 6874 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6875 ctsio->be_move_done = ctl_config_move_done; 6876 ctl_datamove((union ctl_io *)ctsio); 6877 6878 return (CTL_RETVAL_COMPLETE); 6879} 6880 6881int 6882ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6883{ 6884 struct scsi_read_capacity_16 *cdb; 6885 struct scsi_read_capacity_data_long *data; 6886 struct ctl_lun *lun; 6887 uint64_t lba; 6888 uint32_t alloc_len; 6889 6890 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6891 6892 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6893 6894 alloc_len = scsi_4btoul(cdb->alloc_len); 6895 lba = scsi_8btou64(cdb->addr); 6896 6897 if ((cdb->reladr & SRC16_PMI) 6898 && (lba != 0)) { 6899 ctl_set_invalid_field(/*ctsio*/ ctsio, 6900 /*sks_valid*/ 1, 6901 /*command*/ 1, 6902 /*field*/ 2, 6903 /*bit_valid*/ 0, 6904 /*bit*/ 0); 6905 ctl_done((union ctl_io *)ctsio); 6906 return (CTL_RETVAL_COMPLETE); 6907 } 6908 6909 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6910 6911 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6912 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6913 6914 if (sizeof(*data) < alloc_len) { 6915 ctsio->residual = alloc_len - sizeof(*data); 6916 ctsio->kern_data_len = sizeof(*data); 6917 ctsio->kern_total_len = sizeof(*data); 6918 } else { 6919 ctsio->residual = 0; 6920 ctsio->kern_data_len = alloc_len; 6921 ctsio->kern_total_len = alloc_len; 6922 } 6923 ctsio->kern_data_resid = 0; 6924 ctsio->kern_rel_offset = 0; 6925 ctsio->kern_sg_entries = 0; 6926 6927 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6928 /* XXX KDM this may not be 512 bytes... */ 6929 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6930 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6931 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6932 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6933 data->lalba_lbp[0] |= SRC16_LBPME; 6934 6935 ctsio->scsi_status = SCSI_STATUS_OK; 6936 6937 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6938 ctsio->be_move_done = ctl_config_move_done; 6939 ctl_datamove((union ctl_io *)ctsio); 6940 6941 return (CTL_RETVAL_COMPLETE); 6942} 6943 6944int 6945ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 6946{ 6947 struct scsi_maintenance_in *cdb; 6948 int retval; 6949 int alloc_len, total_len = 0; 6950 int num_target_port_groups, single; 6951 struct ctl_lun *lun; 6952 struct ctl_softc *softc; 6953 struct scsi_target_group_data *rtg_ptr; 6954 struct scsi_target_port_group_descriptor *tpg_desc_ptr1, *tpg_desc_ptr2; 6955 struct scsi_target_port_descriptor *tp_desc_ptr1_1, *tp_desc_ptr1_2, 6956 *tp_desc_ptr2_1, *tp_desc_ptr2_2; 6957 6958 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 6959 6960 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 6961 softc = control_softc; 6962 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6963 6964 retval = CTL_RETVAL_COMPLETE; 6965 6966 single = ctl_is_single; 6967 if (single) 6968 num_target_port_groups = NUM_TARGET_PORT_GROUPS - 1; 6969 else 6970 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 6971 6972 total_len = sizeof(struct scsi_target_group_data) + 6973 sizeof(struct scsi_target_port_group_descriptor) * 6974 num_target_port_groups + 6975 sizeof(struct scsi_target_port_descriptor) * 6976 NUM_PORTS_PER_GRP * num_target_port_groups; 6977 6978 alloc_len = scsi_4btoul(cdb->length); 6979 6980 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6981 6982 ctsio->kern_sg_entries = 0; 6983 6984 if (total_len < alloc_len) { 6985 ctsio->residual = alloc_len - total_len; 6986 ctsio->kern_data_len = total_len; 6987 ctsio->kern_total_len = total_len; 6988 } else { 6989 ctsio->residual = 0; 6990 ctsio->kern_data_len = alloc_len; 6991 ctsio->kern_total_len = alloc_len; 6992 } 6993 ctsio->kern_data_resid = 0; 6994 ctsio->kern_rel_offset = 0; 6995 6996 rtg_ptr = (struct scsi_target_group_data *)ctsio->kern_data_ptr; 6997 6998 tpg_desc_ptr1 = &rtg_ptr->groups[0]; 6999 tp_desc_ptr1_1 = &tpg_desc_ptr1->descriptors[0]; 7000 tp_desc_ptr1_2 = (struct scsi_target_port_descriptor *) 7001 &tp_desc_ptr1_1->desc_list[0]; 7002 7003 if (single == 0) { 7004 tpg_desc_ptr2 = (struct scsi_target_port_group_descriptor *) 7005 &tp_desc_ptr1_2->desc_list[0]; 7006 tp_desc_ptr2_1 = &tpg_desc_ptr2->descriptors[0]; 7007 tp_desc_ptr2_2 = (struct scsi_target_port_descriptor *) 7008 &tp_desc_ptr2_1->desc_list[0]; 7009 } else { 7010 tpg_desc_ptr2 = NULL; 7011 tp_desc_ptr2_1 = NULL; 7012 tp_desc_ptr2_2 = NULL; 7013 } 7014 7015 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7016 if (single == 0) { 7017 if (ctsio->io_hdr.nexus.targ_port < CTL_MAX_PORTS) { 7018 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7019 tpg_desc_ptr1->pref_state = TPG_PRIMARY; 7020 tpg_desc_ptr2->pref_state = 7021 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7022 } else { 7023 tpg_desc_ptr1->pref_state = 7024 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7025 tpg_desc_ptr2->pref_state = TPG_PRIMARY; 7026 } 7027 } else { 7028 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7029 tpg_desc_ptr1->pref_state = 7030 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7031 tpg_desc_ptr2->pref_state = TPG_PRIMARY; 7032 } else { 7033 tpg_desc_ptr1->pref_state = TPG_PRIMARY; 7034 tpg_desc_ptr2->pref_state = 7035 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7036 } 7037 } 7038 } else { 7039 tpg_desc_ptr1->pref_state = TPG_PRIMARY; 7040 } 7041 tpg_desc_ptr1->support = 0; 7042 tpg_desc_ptr1->target_port_group[1] = 1; 7043 tpg_desc_ptr1->status = TPG_IMPLICIT; 7044 tpg_desc_ptr1->target_port_count= NUM_PORTS_PER_GRP; 7045 7046 if (single == 0) { 7047 tpg_desc_ptr2->support = 0; 7048 tpg_desc_ptr2->target_port_group[1] = 2; 7049 tpg_desc_ptr2->status = TPG_IMPLICIT; 7050 tpg_desc_ptr2->target_port_count = NUM_PORTS_PER_GRP; 7051 7052 tp_desc_ptr1_1->relative_target_port_identifier[1] = 1; 7053 tp_desc_ptr1_2->relative_target_port_identifier[1] = 2; 7054 7055 tp_desc_ptr2_1->relative_target_port_identifier[1] = 9; 7056 tp_desc_ptr2_2->relative_target_port_identifier[1] = 10; 7057 } else { 7058 if (ctsio->io_hdr.nexus.targ_port < CTL_MAX_PORTS) { 7059 tp_desc_ptr1_1->relative_target_port_identifier[1] = 1; 7060 tp_desc_ptr1_2->relative_target_port_identifier[1] = 2; 7061 } else { 7062 tp_desc_ptr1_1->relative_target_port_identifier[1] = 9; 7063 tp_desc_ptr1_2->relative_target_port_identifier[1] = 10; 7064 } 7065 } 7066 7067 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7068 ctsio->be_move_done = ctl_config_move_done; 7069 7070 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7071 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7072 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7073 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7074 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7075 7076 ctl_datamove((union ctl_io *)ctsio); 7077 return(retval); 7078} 7079 7080int 7081ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7082{ 7083 struct ctl_lun *lun; 7084 struct scsi_report_supported_opcodes *cdb; 7085 const struct ctl_cmd_entry *entry, *sentry; 7086 struct scsi_report_supported_opcodes_all *all; 7087 struct scsi_report_supported_opcodes_descr *descr; 7088 struct scsi_report_supported_opcodes_one *one; 7089 int retval; 7090 int alloc_len, total_len; 7091 int opcode, service_action, i, j, num; 7092 7093 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7094 7095 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7096 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7097 7098 retval = CTL_RETVAL_COMPLETE; 7099 7100 opcode = cdb->requested_opcode; 7101 service_action = scsi_2btoul(cdb->requested_service_action); 7102 switch (cdb->options & RSO_OPTIONS_MASK) { 7103 case RSO_OPTIONS_ALL: 7104 num = 0; 7105 for (i = 0; i < 256; i++) { 7106 entry = &ctl_cmd_table[i]; 7107 if (entry->flags & CTL_CMD_FLAG_SA5) { 7108 for (j = 0; j < 32; j++) { 7109 sentry = &((const struct ctl_cmd_entry *) 7110 entry->execute)[j]; 7111 if (ctl_cmd_applicable( 7112 lun->be_lun->lun_type, sentry)) 7113 num++; 7114 } 7115 } else { 7116 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7117 entry)) 7118 num++; 7119 } 7120 } 7121 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7122 num * sizeof(struct scsi_report_supported_opcodes_descr); 7123 break; 7124 case RSO_OPTIONS_OC: 7125 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7126 ctl_set_invalid_field(/*ctsio*/ ctsio, 7127 /*sks_valid*/ 1, 7128 /*command*/ 1, 7129 /*field*/ 2, 7130 /*bit_valid*/ 1, 7131 /*bit*/ 2); 7132 ctl_done((union ctl_io *)ctsio); 7133 return (CTL_RETVAL_COMPLETE); 7134 } 7135 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7136 break; 7137 case RSO_OPTIONS_OC_SA: 7138 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7139 service_action >= 32) { 7140 ctl_set_invalid_field(/*ctsio*/ ctsio, 7141 /*sks_valid*/ 1, 7142 /*command*/ 1, 7143 /*field*/ 2, 7144 /*bit_valid*/ 1, 7145 /*bit*/ 2); 7146 ctl_done((union ctl_io *)ctsio); 7147 return (CTL_RETVAL_COMPLETE); 7148 } 7149 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7150 break; 7151 default: 7152 ctl_set_invalid_field(/*ctsio*/ ctsio, 7153 /*sks_valid*/ 1, 7154 /*command*/ 1, 7155 /*field*/ 2, 7156 /*bit_valid*/ 1, 7157 /*bit*/ 2); 7158 ctl_done((union ctl_io *)ctsio); 7159 return (CTL_RETVAL_COMPLETE); 7160 } 7161 7162 alloc_len = scsi_4btoul(cdb->length); 7163 7164 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7165 7166 ctsio->kern_sg_entries = 0; 7167 7168 if (total_len < alloc_len) { 7169 ctsio->residual = alloc_len - total_len; 7170 ctsio->kern_data_len = total_len; 7171 ctsio->kern_total_len = total_len; 7172 } else { 7173 ctsio->residual = 0; 7174 ctsio->kern_data_len = alloc_len; 7175 ctsio->kern_total_len = alloc_len; 7176 } 7177 ctsio->kern_data_resid = 0; 7178 ctsio->kern_rel_offset = 0; 7179 7180 switch (cdb->options & RSO_OPTIONS_MASK) { 7181 case RSO_OPTIONS_ALL: 7182 all = (struct scsi_report_supported_opcodes_all *) 7183 ctsio->kern_data_ptr; 7184 num = 0; 7185 for (i = 0; i < 256; i++) { 7186 entry = &ctl_cmd_table[i]; 7187 if (entry->flags & CTL_CMD_FLAG_SA5) { 7188 for (j = 0; j < 32; j++) { 7189 sentry = &((const struct ctl_cmd_entry *) 7190 entry->execute)[j]; 7191 if (!ctl_cmd_applicable( 7192 lun->be_lun->lun_type, sentry)) 7193 continue; 7194 descr = &all->descr[num++]; 7195 descr->opcode = i; 7196 scsi_ulto2b(j, descr->service_action); 7197 descr->flags = RSO_SERVACTV; 7198 scsi_ulto2b(sentry->length, 7199 descr->cdb_length); 7200 } 7201 } else { 7202 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7203 entry)) 7204 continue; 7205 descr = &all->descr[num++]; 7206 descr->opcode = i; 7207 scsi_ulto2b(0, descr->service_action); 7208 descr->flags = 0; 7209 scsi_ulto2b(entry->length, descr->cdb_length); 7210 } 7211 } 7212 scsi_ulto4b( 7213 num * sizeof(struct scsi_report_supported_opcodes_descr), 7214 all->length); 7215 break; 7216 case RSO_OPTIONS_OC: 7217 one = (struct scsi_report_supported_opcodes_one *) 7218 ctsio->kern_data_ptr; 7219 entry = &ctl_cmd_table[opcode]; 7220 goto fill_one; 7221 case RSO_OPTIONS_OC_SA: 7222 one = (struct scsi_report_supported_opcodes_one *) 7223 ctsio->kern_data_ptr; 7224 entry = &ctl_cmd_table[opcode]; 7225 entry = &((const struct ctl_cmd_entry *) 7226 entry->execute)[service_action]; 7227fill_one: 7228 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7229 one->support = 3; 7230 scsi_ulto2b(entry->length, one->cdb_length); 7231 one->cdb_usage[0] = opcode; 7232 memcpy(&one->cdb_usage[1], entry->usage, 7233 entry->length - 1); 7234 } else 7235 one->support = 1; 7236 break; 7237 } 7238 7239 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7240 ctsio->be_move_done = ctl_config_move_done; 7241 7242 ctl_datamove((union ctl_io *)ctsio); 7243 return(retval); 7244} 7245 7246int 7247ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7248{ 7249 struct ctl_lun *lun; 7250 struct scsi_report_supported_tmf *cdb; 7251 struct scsi_report_supported_tmf_data *data; 7252 int retval; 7253 int alloc_len, total_len; 7254 7255 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7256 7257 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7258 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7259 7260 retval = CTL_RETVAL_COMPLETE; 7261 7262 total_len = sizeof(struct scsi_report_supported_tmf_data); 7263 alloc_len = scsi_4btoul(cdb->length); 7264 7265 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7266 7267 ctsio->kern_sg_entries = 0; 7268 7269 if (total_len < alloc_len) { 7270 ctsio->residual = alloc_len - total_len; 7271 ctsio->kern_data_len = total_len; 7272 ctsio->kern_total_len = total_len; 7273 } else { 7274 ctsio->residual = 0; 7275 ctsio->kern_data_len = alloc_len; 7276 ctsio->kern_total_len = alloc_len; 7277 } 7278 ctsio->kern_data_resid = 0; 7279 ctsio->kern_rel_offset = 0; 7280 7281 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7282 data->byte1 |= RST_ATS | RST_LURS | RST_TRS; 7283 7284 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7285 ctsio->be_move_done = ctl_config_move_done; 7286 7287 ctl_datamove((union ctl_io *)ctsio); 7288 return (retval); 7289} 7290 7291int 7292ctl_report_timestamp(struct ctl_scsiio *ctsio) 7293{ 7294 struct ctl_lun *lun; 7295 struct scsi_report_timestamp *cdb; 7296 struct scsi_report_timestamp_data *data; 7297 struct timeval tv; 7298 int64_t timestamp; 7299 int retval; 7300 int alloc_len, total_len; 7301 7302 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7303 7304 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7305 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7306 7307 retval = CTL_RETVAL_COMPLETE; 7308 7309 total_len = sizeof(struct scsi_report_timestamp_data); 7310 alloc_len = scsi_4btoul(cdb->length); 7311 7312 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7313 7314 ctsio->kern_sg_entries = 0; 7315 7316 if (total_len < alloc_len) { 7317 ctsio->residual = alloc_len - total_len; 7318 ctsio->kern_data_len = total_len; 7319 ctsio->kern_total_len = total_len; 7320 } else { 7321 ctsio->residual = 0; 7322 ctsio->kern_data_len = alloc_len; 7323 ctsio->kern_total_len = alloc_len; 7324 } 7325 ctsio->kern_data_resid = 0; 7326 ctsio->kern_rel_offset = 0; 7327 7328 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7329 scsi_ulto2b(sizeof(*data) - 2, data->length); 7330 data->origin = RTS_ORIG_OUTSIDE; 7331 getmicrotime(&tv); 7332 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7333 scsi_ulto4b(timestamp >> 16, data->timestamp); 7334 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7335 7336 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7337 ctsio->be_move_done = ctl_config_move_done; 7338 7339 ctl_datamove((union ctl_io *)ctsio); 7340 return (retval); 7341} 7342 7343int 7344ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7345{ 7346 struct scsi_per_res_in *cdb; 7347 int alloc_len, total_len = 0; 7348 /* struct scsi_per_res_in_rsrv in_data; */ 7349 struct ctl_lun *lun; 7350 struct ctl_softc *softc; 7351 7352 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7353 7354 softc = control_softc; 7355 7356 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7357 7358 alloc_len = scsi_2btoul(cdb->length); 7359 7360 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7361 7362retry: 7363 mtx_lock(&lun->lun_lock); 7364 switch (cdb->action) { 7365 case SPRI_RK: /* read keys */ 7366 total_len = sizeof(struct scsi_per_res_in_keys) + 7367 lun->pr_key_count * 7368 sizeof(struct scsi_per_res_key); 7369 break; 7370 case SPRI_RR: /* read reservation */ 7371 if (lun->flags & CTL_LUN_PR_RESERVED) 7372 total_len = sizeof(struct scsi_per_res_in_rsrv); 7373 else 7374 total_len = sizeof(struct scsi_per_res_in_header); 7375 break; 7376 case SPRI_RC: /* report capabilities */ 7377 total_len = sizeof(struct scsi_per_res_cap); 7378 break; 7379 default: 7380 panic("Invalid PR type %x", cdb->action); 7381 } 7382 mtx_unlock(&lun->lun_lock); 7383 7384 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7385 7386 if (total_len < alloc_len) { 7387 ctsio->residual = alloc_len - total_len; 7388 ctsio->kern_data_len = total_len; 7389 ctsio->kern_total_len = total_len; 7390 } else { 7391 ctsio->residual = 0; 7392 ctsio->kern_data_len = alloc_len; 7393 ctsio->kern_total_len = alloc_len; 7394 } 7395 7396 ctsio->kern_data_resid = 0; 7397 ctsio->kern_rel_offset = 0; 7398 ctsio->kern_sg_entries = 0; 7399 7400 mtx_lock(&lun->lun_lock); 7401 switch (cdb->action) { 7402 case SPRI_RK: { // read keys 7403 struct scsi_per_res_in_keys *res_keys; 7404 int i, key_count; 7405 7406 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7407 7408 /* 7409 * We had to drop the lock to allocate our buffer, which 7410 * leaves time for someone to come in with another 7411 * persistent reservation. (That is unlikely, though, 7412 * since this should be the only persistent reservation 7413 * command active right now.) 7414 */ 7415 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7416 (lun->pr_key_count * 7417 sizeof(struct scsi_per_res_key)))){ 7418 mtx_unlock(&lun->lun_lock); 7419 free(ctsio->kern_data_ptr, M_CTL); 7420 printf("%s: reservation length changed, retrying\n", 7421 __func__); 7422 goto retry; 7423 } 7424 7425 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7426 7427 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7428 lun->pr_key_count, res_keys->header.length); 7429 7430 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7431 if (!lun->per_res[i].registered) 7432 continue; 7433 7434 /* 7435 * We used lun->pr_key_count to calculate the 7436 * size to allocate. If it turns out the number of 7437 * initiators with the registered flag set is 7438 * larger than that (i.e. they haven't been kept in 7439 * sync), we've got a problem. 7440 */ 7441 if (key_count >= lun->pr_key_count) { 7442#ifdef NEEDTOPORT 7443 csevent_log(CSC_CTL | CSC_SHELF_SW | 7444 CTL_PR_ERROR, 7445 csevent_LogType_Fault, 7446 csevent_AlertLevel_Yellow, 7447 csevent_FRU_ShelfController, 7448 csevent_FRU_Firmware, 7449 csevent_FRU_Unknown, 7450 "registered keys %d >= key " 7451 "count %d", key_count, 7452 lun->pr_key_count); 7453#endif 7454 key_count++; 7455 continue; 7456 } 7457 memcpy(res_keys->keys[key_count].key, 7458 lun->per_res[i].res_key.key, 7459 ctl_min(sizeof(res_keys->keys[key_count].key), 7460 sizeof(lun->per_res[i].res_key))); 7461 key_count++; 7462 } 7463 break; 7464 } 7465 case SPRI_RR: { // read reservation 7466 struct scsi_per_res_in_rsrv *res; 7467 int tmp_len, header_only; 7468 7469 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7470 7471 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7472 7473 if (lun->flags & CTL_LUN_PR_RESERVED) 7474 { 7475 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7476 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7477 res->header.length); 7478 header_only = 0; 7479 } else { 7480 tmp_len = sizeof(struct scsi_per_res_in_header); 7481 scsi_ulto4b(0, res->header.length); 7482 header_only = 1; 7483 } 7484 7485 /* 7486 * We had to drop the lock to allocate our buffer, which 7487 * leaves time for someone to come in with another 7488 * persistent reservation. (That is unlikely, though, 7489 * since this should be the only persistent reservation 7490 * command active right now.) 7491 */ 7492 if (tmp_len != total_len) { 7493 mtx_unlock(&lun->lun_lock); 7494 free(ctsio->kern_data_ptr, M_CTL); 7495 printf("%s: reservation status changed, retrying\n", 7496 __func__); 7497 goto retry; 7498 } 7499 7500 /* 7501 * No reservation held, so we're done. 7502 */ 7503 if (header_only != 0) 7504 break; 7505 7506 /* 7507 * If the registration is an All Registrants type, the key 7508 * is 0, since it doesn't really matter. 7509 */ 7510 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7511 memcpy(res->data.reservation, 7512 &lun->per_res[lun->pr_res_idx].res_key, 7513 sizeof(struct scsi_per_res_key)); 7514 } 7515 res->data.scopetype = lun->res_type; 7516 break; 7517 } 7518 case SPRI_RC: //report capabilities 7519 { 7520 struct scsi_per_res_cap *res_cap; 7521 uint16_t type_mask; 7522 7523 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7524 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7525 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7526 type_mask = SPRI_TM_WR_EX_AR | 7527 SPRI_TM_EX_AC_RO | 7528 SPRI_TM_WR_EX_RO | 7529 SPRI_TM_EX_AC | 7530 SPRI_TM_WR_EX | 7531 SPRI_TM_EX_AC_AR; 7532 scsi_ulto2b(type_mask, res_cap->type_mask); 7533 break; 7534 } 7535 case SPRI_RS: //read full status 7536 default: 7537 /* 7538 * This is a bug, because we just checked for this above, 7539 * and should have returned an error. 7540 */ 7541 panic("Invalid PR type %x", cdb->action); 7542 break; /* NOTREACHED */ 7543 } 7544 mtx_unlock(&lun->lun_lock); 7545 7546 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7547 ctsio->be_move_done = ctl_config_move_done; 7548 7549 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7550 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7551 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7552 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7553 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7554 7555 ctl_datamove((union ctl_io *)ctsio); 7556 7557 return (CTL_RETVAL_COMPLETE); 7558} 7559 7560/* 7561 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7562 * it should return. 7563 */ 7564static int 7565ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7566 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7567 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7568 struct scsi_per_res_out_parms* param) 7569{ 7570 union ctl_ha_msg persis_io; 7571 int retval, i; 7572 int isc_retval; 7573 7574 retval = 0; 7575 7576 mtx_lock(&lun->lun_lock); 7577 if (sa_res_key == 0) { 7578 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7579 /* validate scope and type */ 7580 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7581 SPR_LU_SCOPE) { 7582 mtx_unlock(&lun->lun_lock); 7583 ctl_set_invalid_field(/*ctsio*/ ctsio, 7584 /*sks_valid*/ 1, 7585 /*command*/ 1, 7586 /*field*/ 2, 7587 /*bit_valid*/ 1, 7588 /*bit*/ 4); 7589 ctl_done((union ctl_io *)ctsio); 7590 return (1); 7591 } 7592 7593 if (type>8 || type==2 || type==4 || type==0) { 7594 mtx_unlock(&lun->lun_lock); 7595 ctl_set_invalid_field(/*ctsio*/ ctsio, 7596 /*sks_valid*/ 1, 7597 /*command*/ 1, 7598 /*field*/ 2, 7599 /*bit_valid*/ 1, 7600 /*bit*/ 0); 7601 ctl_done((union ctl_io *)ctsio); 7602 return (1); 7603 } 7604 7605 /* temporarily unregister this nexus */ 7606 lun->per_res[residx].registered = 0; 7607 7608 /* 7609 * Unregister everybody else and build UA for 7610 * them 7611 */ 7612 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7613 if (lun->per_res[i].registered == 0) 7614 continue; 7615 7616 if (!persis_offset 7617 && i <CTL_MAX_INITIATORS) 7618 lun->pending_sense[i].ua_pending |= 7619 CTL_UA_REG_PREEMPT; 7620 else if (persis_offset 7621 && i >= persis_offset) 7622 lun->pending_sense[i-persis_offset 7623 ].ua_pending |= 7624 CTL_UA_REG_PREEMPT; 7625 lun->per_res[i].registered = 0; 7626 memset(&lun->per_res[i].res_key, 0, 7627 sizeof(struct scsi_per_res_key)); 7628 } 7629 lun->per_res[residx].registered = 1; 7630 lun->pr_key_count = 1; 7631 lun->res_type = type; 7632 if (lun->res_type != SPR_TYPE_WR_EX_AR 7633 && lun->res_type != SPR_TYPE_EX_AC_AR) 7634 lun->pr_res_idx = residx; 7635 7636 /* send msg to other side */ 7637 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7638 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7639 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7640 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7641 persis_io.pr.pr_info.res_type = type; 7642 memcpy(persis_io.pr.pr_info.sa_res_key, 7643 param->serv_act_res_key, 7644 sizeof(param->serv_act_res_key)); 7645 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7646 &persis_io, sizeof(persis_io), 0)) > 7647 CTL_HA_STATUS_SUCCESS) { 7648 printf("CTL:Persis Out error returned " 7649 "from ctl_ha_msg_send %d\n", 7650 isc_retval); 7651 } 7652 } else { 7653 /* not all registrants */ 7654 mtx_unlock(&lun->lun_lock); 7655 free(ctsio->kern_data_ptr, M_CTL); 7656 ctl_set_invalid_field(ctsio, 7657 /*sks_valid*/ 1, 7658 /*command*/ 0, 7659 /*field*/ 8, 7660 /*bit_valid*/ 0, 7661 /*bit*/ 0); 7662 ctl_done((union ctl_io *)ctsio); 7663 return (1); 7664 } 7665 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7666 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7667 int found = 0; 7668 7669 if (res_key == sa_res_key) { 7670 /* special case */ 7671 /* 7672 * The spec implies this is not good but doesn't 7673 * say what to do. There are two choices either 7674 * generate a res conflict or check condition 7675 * with illegal field in parameter data. Since 7676 * that is what is done when the sa_res_key is 7677 * zero I'll take that approach since this has 7678 * to do with the sa_res_key. 7679 */ 7680 mtx_unlock(&lun->lun_lock); 7681 free(ctsio->kern_data_ptr, M_CTL); 7682 ctl_set_invalid_field(ctsio, 7683 /*sks_valid*/ 1, 7684 /*command*/ 0, 7685 /*field*/ 8, 7686 /*bit_valid*/ 0, 7687 /*bit*/ 0); 7688 ctl_done((union ctl_io *)ctsio); 7689 return (1); 7690 } 7691 7692 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7693 if (lun->per_res[i].registered 7694 && memcmp(param->serv_act_res_key, 7695 lun->per_res[i].res_key.key, 7696 sizeof(struct scsi_per_res_key)) != 0) 7697 continue; 7698 7699 found = 1; 7700 lun->per_res[i].registered = 0; 7701 memset(&lun->per_res[i].res_key, 0, 7702 sizeof(struct scsi_per_res_key)); 7703 lun->pr_key_count--; 7704 7705 if (!persis_offset 7706 && i < CTL_MAX_INITIATORS) 7707 lun->pending_sense[i].ua_pending |= 7708 CTL_UA_REG_PREEMPT; 7709 else if (persis_offset 7710 && i >= persis_offset) 7711 lun->pending_sense[i-persis_offset].ua_pending|= 7712 CTL_UA_REG_PREEMPT; 7713 } 7714 if (!found) { 7715 mtx_unlock(&lun->lun_lock); 7716 free(ctsio->kern_data_ptr, M_CTL); 7717 ctl_set_reservation_conflict(ctsio); 7718 ctl_done((union ctl_io *)ctsio); 7719 return (CTL_RETVAL_COMPLETE); 7720 } 7721 /* send msg to other side */ 7722 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7723 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7724 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7725 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7726 persis_io.pr.pr_info.res_type = type; 7727 memcpy(persis_io.pr.pr_info.sa_res_key, 7728 param->serv_act_res_key, 7729 sizeof(param->serv_act_res_key)); 7730 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7731 &persis_io, sizeof(persis_io), 0)) > 7732 CTL_HA_STATUS_SUCCESS) { 7733 printf("CTL:Persis Out error returned from " 7734 "ctl_ha_msg_send %d\n", isc_retval); 7735 } 7736 } else { 7737 /* Reserved but not all registrants */ 7738 /* sa_res_key is res holder */ 7739 if (memcmp(param->serv_act_res_key, 7740 lun->per_res[lun->pr_res_idx].res_key.key, 7741 sizeof(struct scsi_per_res_key)) == 0) { 7742 /* validate scope and type */ 7743 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7744 SPR_LU_SCOPE) { 7745 mtx_unlock(&lun->lun_lock); 7746 ctl_set_invalid_field(/*ctsio*/ ctsio, 7747 /*sks_valid*/ 1, 7748 /*command*/ 1, 7749 /*field*/ 2, 7750 /*bit_valid*/ 1, 7751 /*bit*/ 4); 7752 ctl_done((union ctl_io *)ctsio); 7753 return (1); 7754 } 7755 7756 if (type>8 || type==2 || type==4 || type==0) { 7757 mtx_unlock(&lun->lun_lock); 7758 ctl_set_invalid_field(/*ctsio*/ ctsio, 7759 /*sks_valid*/ 1, 7760 /*command*/ 1, 7761 /*field*/ 2, 7762 /*bit_valid*/ 1, 7763 /*bit*/ 0); 7764 ctl_done((union ctl_io *)ctsio); 7765 return (1); 7766 } 7767 7768 /* 7769 * Do the following: 7770 * if sa_res_key != res_key remove all 7771 * registrants w/sa_res_key and generate UA 7772 * for these registrants(Registrations 7773 * Preempted) if it wasn't an exclusive 7774 * reservation generate UA(Reservations 7775 * Preempted) for all other registered nexuses 7776 * if the type has changed. Establish the new 7777 * reservation and holder. If res_key and 7778 * sa_res_key are the same do the above 7779 * except don't unregister the res holder. 7780 */ 7781 7782 /* 7783 * Temporarily unregister so it won't get 7784 * removed or UA generated 7785 */ 7786 lun->per_res[residx].registered = 0; 7787 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7788 if (lun->per_res[i].registered == 0) 7789 continue; 7790 7791 if (memcmp(param->serv_act_res_key, 7792 lun->per_res[i].res_key.key, 7793 sizeof(struct scsi_per_res_key)) == 0) { 7794 lun->per_res[i].registered = 0; 7795 memset(&lun->per_res[i].res_key, 7796 0, 7797 sizeof(struct scsi_per_res_key)); 7798 lun->pr_key_count--; 7799 7800 if (!persis_offset 7801 && i < CTL_MAX_INITIATORS) 7802 lun->pending_sense[i 7803 ].ua_pending |= 7804 CTL_UA_REG_PREEMPT; 7805 else if (persis_offset 7806 && i >= persis_offset) 7807 lun->pending_sense[ 7808 i-persis_offset].ua_pending |= 7809 CTL_UA_REG_PREEMPT; 7810 } else if (type != lun->res_type 7811 && (lun->res_type == SPR_TYPE_WR_EX_RO 7812 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 7813 if (!persis_offset 7814 && i < CTL_MAX_INITIATORS) 7815 lun->pending_sense[i 7816 ].ua_pending |= 7817 CTL_UA_RES_RELEASE; 7818 else if (persis_offset 7819 && i >= persis_offset) 7820 lun->pending_sense[ 7821 i-persis_offset 7822 ].ua_pending |= 7823 CTL_UA_RES_RELEASE; 7824 } 7825 } 7826 lun->per_res[residx].registered = 1; 7827 lun->res_type = type; 7828 if (lun->res_type != SPR_TYPE_WR_EX_AR 7829 && lun->res_type != SPR_TYPE_EX_AC_AR) 7830 lun->pr_res_idx = residx; 7831 else 7832 lun->pr_res_idx = 7833 CTL_PR_ALL_REGISTRANTS; 7834 7835 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7836 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7837 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7838 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7839 persis_io.pr.pr_info.res_type = type; 7840 memcpy(persis_io.pr.pr_info.sa_res_key, 7841 param->serv_act_res_key, 7842 sizeof(param->serv_act_res_key)); 7843 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7844 &persis_io, sizeof(persis_io), 0)) > 7845 CTL_HA_STATUS_SUCCESS) { 7846 printf("CTL:Persis Out error returned " 7847 "from ctl_ha_msg_send %d\n", 7848 isc_retval); 7849 } 7850 } else { 7851 /* 7852 * sa_res_key is not the res holder just 7853 * remove registrants 7854 */ 7855 int found=0; 7856 7857 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7858 if (memcmp(param->serv_act_res_key, 7859 lun->per_res[i].res_key.key, 7860 sizeof(struct scsi_per_res_key)) != 0) 7861 continue; 7862 7863 found = 1; 7864 lun->per_res[i].registered = 0; 7865 memset(&lun->per_res[i].res_key, 0, 7866 sizeof(struct scsi_per_res_key)); 7867 lun->pr_key_count--; 7868 7869 if (!persis_offset 7870 && i < CTL_MAX_INITIATORS) 7871 lun->pending_sense[i].ua_pending |= 7872 CTL_UA_REG_PREEMPT; 7873 else if (persis_offset 7874 && i >= persis_offset) 7875 lun->pending_sense[ 7876 i-persis_offset].ua_pending |= 7877 CTL_UA_REG_PREEMPT; 7878 } 7879 7880 if (!found) { 7881 mtx_unlock(&lun->lun_lock); 7882 free(ctsio->kern_data_ptr, M_CTL); 7883 ctl_set_reservation_conflict(ctsio); 7884 ctl_done((union ctl_io *)ctsio); 7885 return (1); 7886 } 7887 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7888 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7889 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7890 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7891 persis_io.pr.pr_info.res_type = type; 7892 memcpy(persis_io.pr.pr_info.sa_res_key, 7893 param->serv_act_res_key, 7894 sizeof(param->serv_act_res_key)); 7895 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7896 &persis_io, sizeof(persis_io), 0)) > 7897 CTL_HA_STATUS_SUCCESS) { 7898 printf("CTL:Persis Out error returned " 7899 "from ctl_ha_msg_send %d\n", 7900 isc_retval); 7901 } 7902 } 7903 } 7904 7905 lun->PRGeneration++; 7906 mtx_unlock(&lun->lun_lock); 7907 7908 return (retval); 7909} 7910 7911static void 7912ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7913{ 7914 int i; 7915 7916 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7917 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7918 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 7919 msg->pr.pr_info.sa_res_key, 7920 sizeof(struct scsi_per_res_key)) != 0) { 7921 uint64_t sa_res_key; 7922 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7923 7924 if (sa_res_key == 0) { 7925 /* temporarily unregister this nexus */ 7926 lun->per_res[msg->pr.pr_info.residx].registered = 0; 7927 7928 /* 7929 * Unregister everybody else and build UA for 7930 * them 7931 */ 7932 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7933 if (lun->per_res[i].registered == 0) 7934 continue; 7935 7936 if (!persis_offset 7937 && i < CTL_MAX_INITIATORS) 7938 lun->pending_sense[i].ua_pending |= 7939 CTL_UA_REG_PREEMPT; 7940 else if (persis_offset && i >= persis_offset) 7941 lun->pending_sense[i - 7942 persis_offset].ua_pending |= 7943 CTL_UA_REG_PREEMPT; 7944 lun->per_res[i].registered = 0; 7945 memset(&lun->per_res[i].res_key, 0, 7946 sizeof(struct scsi_per_res_key)); 7947 } 7948 7949 lun->per_res[msg->pr.pr_info.residx].registered = 1; 7950 lun->pr_key_count = 1; 7951 lun->res_type = msg->pr.pr_info.res_type; 7952 if (lun->res_type != SPR_TYPE_WR_EX_AR 7953 && lun->res_type != SPR_TYPE_EX_AC_AR) 7954 lun->pr_res_idx = msg->pr.pr_info.residx; 7955 } else { 7956 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7957 if (memcmp(msg->pr.pr_info.sa_res_key, 7958 lun->per_res[i].res_key.key, 7959 sizeof(struct scsi_per_res_key)) != 0) 7960 continue; 7961 7962 lun->per_res[i].registered = 0; 7963 memset(&lun->per_res[i].res_key, 0, 7964 sizeof(struct scsi_per_res_key)); 7965 lun->pr_key_count--; 7966 7967 if (!persis_offset 7968 && i < persis_offset) 7969 lun->pending_sense[i].ua_pending |= 7970 CTL_UA_REG_PREEMPT; 7971 else if (persis_offset 7972 && i >= persis_offset) 7973 lun->pending_sense[i - 7974 persis_offset].ua_pending |= 7975 CTL_UA_REG_PREEMPT; 7976 } 7977 } 7978 } else { 7979 /* 7980 * Temporarily unregister so it won't get removed 7981 * or UA generated 7982 */ 7983 lun->per_res[msg->pr.pr_info.residx].registered = 0; 7984 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7985 if (lun->per_res[i].registered == 0) 7986 continue; 7987 7988 if (memcmp(msg->pr.pr_info.sa_res_key, 7989 lun->per_res[i].res_key.key, 7990 sizeof(struct scsi_per_res_key)) == 0) { 7991 lun->per_res[i].registered = 0; 7992 memset(&lun->per_res[i].res_key, 0, 7993 sizeof(struct scsi_per_res_key)); 7994 lun->pr_key_count--; 7995 if (!persis_offset 7996 && i < CTL_MAX_INITIATORS) 7997 lun->pending_sense[i].ua_pending |= 7998 CTL_UA_REG_PREEMPT; 7999 else if (persis_offset 8000 && i >= persis_offset) 8001 lun->pending_sense[i - 8002 persis_offset].ua_pending |= 8003 CTL_UA_REG_PREEMPT; 8004 } else if (msg->pr.pr_info.res_type != lun->res_type 8005 && (lun->res_type == SPR_TYPE_WR_EX_RO 8006 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8007 if (!persis_offset 8008 && i < persis_offset) 8009 lun->pending_sense[i 8010 ].ua_pending |= 8011 CTL_UA_RES_RELEASE; 8012 else if (persis_offset 8013 && i >= persis_offset) 8014 lun->pending_sense[i - 8015 persis_offset].ua_pending |= 8016 CTL_UA_RES_RELEASE; 8017 } 8018 } 8019 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8020 lun->res_type = msg->pr.pr_info.res_type; 8021 if (lun->res_type != SPR_TYPE_WR_EX_AR 8022 && lun->res_type != SPR_TYPE_EX_AC_AR) 8023 lun->pr_res_idx = msg->pr.pr_info.residx; 8024 else 8025 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8026 } 8027 lun->PRGeneration++; 8028 8029} 8030 8031 8032int 8033ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8034{ 8035 int retval; 8036 int isc_retval; 8037 u_int32_t param_len; 8038 struct scsi_per_res_out *cdb; 8039 struct ctl_lun *lun; 8040 struct scsi_per_res_out_parms* param; 8041 struct ctl_softc *softc; 8042 uint32_t residx; 8043 uint64_t res_key, sa_res_key; 8044 uint8_t type; 8045 union ctl_ha_msg persis_io; 8046 int i; 8047 8048 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8049 8050 retval = CTL_RETVAL_COMPLETE; 8051 8052 softc = control_softc; 8053 8054 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8055 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8056 8057 /* 8058 * We only support whole-LUN scope. The scope & type are ignored for 8059 * register, register and ignore existing key and clear. 8060 * We sometimes ignore scope and type on preempts too!! 8061 * Verify reservation type here as well. 8062 */ 8063 type = cdb->scope_type & SPR_TYPE_MASK; 8064 if ((cdb->action == SPRO_RESERVE) 8065 || (cdb->action == SPRO_RELEASE)) { 8066 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8067 ctl_set_invalid_field(/*ctsio*/ ctsio, 8068 /*sks_valid*/ 1, 8069 /*command*/ 1, 8070 /*field*/ 2, 8071 /*bit_valid*/ 1, 8072 /*bit*/ 4); 8073 ctl_done((union ctl_io *)ctsio); 8074 return (CTL_RETVAL_COMPLETE); 8075 } 8076 8077 if (type>8 || type==2 || type==4 || type==0) { 8078 ctl_set_invalid_field(/*ctsio*/ ctsio, 8079 /*sks_valid*/ 1, 8080 /*command*/ 1, 8081 /*field*/ 2, 8082 /*bit_valid*/ 1, 8083 /*bit*/ 0); 8084 ctl_done((union ctl_io *)ctsio); 8085 return (CTL_RETVAL_COMPLETE); 8086 } 8087 } 8088 8089 param_len = scsi_4btoul(cdb->length); 8090 8091 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8092 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8093 ctsio->kern_data_len = param_len; 8094 ctsio->kern_total_len = param_len; 8095 ctsio->kern_data_resid = 0; 8096 ctsio->kern_rel_offset = 0; 8097 ctsio->kern_sg_entries = 0; 8098 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8099 ctsio->be_move_done = ctl_config_move_done; 8100 ctl_datamove((union ctl_io *)ctsio); 8101 8102 return (CTL_RETVAL_COMPLETE); 8103 } 8104 8105 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8106 8107 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8108 res_key = scsi_8btou64(param->res_key.key); 8109 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8110 8111 /* 8112 * Validate the reservation key here except for SPRO_REG_IGNO 8113 * This must be done for all other service actions 8114 */ 8115 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8116 mtx_lock(&lun->lun_lock); 8117 if (lun->per_res[residx].registered) { 8118 if (memcmp(param->res_key.key, 8119 lun->per_res[residx].res_key.key, 8120 ctl_min(sizeof(param->res_key), 8121 sizeof(lun->per_res[residx].res_key))) != 0) { 8122 /* 8123 * The current key passed in doesn't match 8124 * the one the initiator previously 8125 * registered. 8126 */ 8127 mtx_unlock(&lun->lun_lock); 8128 free(ctsio->kern_data_ptr, M_CTL); 8129 ctl_set_reservation_conflict(ctsio); 8130 ctl_done((union ctl_io *)ctsio); 8131 return (CTL_RETVAL_COMPLETE); 8132 } 8133 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8134 /* 8135 * We are not registered 8136 */ 8137 mtx_unlock(&lun->lun_lock); 8138 free(ctsio->kern_data_ptr, M_CTL); 8139 ctl_set_reservation_conflict(ctsio); 8140 ctl_done((union ctl_io *)ctsio); 8141 return (CTL_RETVAL_COMPLETE); 8142 } else if (res_key != 0) { 8143 /* 8144 * We are not registered and trying to register but 8145 * the register key isn't zero. 8146 */ 8147 mtx_unlock(&lun->lun_lock); 8148 free(ctsio->kern_data_ptr, M_CTL); 8149 ctl_set_reservation_conflict(ctsio); 8150 ctl_done((union ctl_io *)ctsio); 8151 return (CTL_RETVAL_COMPLETE); 8152 } 8153 mtx_unlock(&lun->lun_lock); 8154 } 8155 8156 switch (cdb->action & SPRO_ACTION_MASK) { 8157 case SPRO_REGISTER: 8158 case SPRO_REG_IGNO: { 8159 8160#if 0 8161 printf("Registration received\n"); 8162#endif 8163 8164 /* 8165 * We don't support any of these options, as we report in 8166 * the read capabilities request (see 8167 * ctl_persistent_reserve_in(), above). 8168 */ 8169 if ((param->flags & SPR_SPEC_I_PT) 8170 || (param->flags & SPR_ALL_TG_PT) 8171 || (param->flags & SPR_APTPL)) { 8172 int bit_ptr; 8173 8174 if (param->flags & SPR_APTPL) 8175 bit_ptr = 0; 8176 else if (param->flags & SPR_ALL_TG_PT) 8177 bit_ptr = 2; 8178 else /* SPR_SPEC_I_PT */ 8179 bit_ptr = 3; 8180 8181 free(ctsio->kern_data_ptr, M_CTL); 8182 ctl_set_invalid_field(ctsio, 8183 /*sks_valid*/ 1, 8184 /*command*/ 0, 8185 /*field*/ 20, 8186 /*bit_valid*/ 1, 8187 /*bit*/ bit_ptr); 8188 ctl_done((union ctl_io *)ctsio); 8189 return (CTL_RETVAL_COMPLETE); 8190 } 8191 8192 mtx_lock(&lun->lun_lock); 8193 8194 /* 8195 * The initiator wants to clear the 8196 * key/unregister. 8197 */ 8198 if (sa_res_key == 0) { 8199 if ((res_key == 0 8200 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8201 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8202 && !lun->per_res[residx].registered)) { 8203 mtx_unlock(&lun->lun_lock); 8204 goto done; 8205 } 8206 8207 lun->per_res[residx].registered = 0; 8208 memset(&lun->per_res[residx].res_key, 8209 0, sizeof(lun->per_res[residx].res_key)); 8210 lun->pr_key_count--; 8211 8212 if (residx == lun->pr_res_idx) { 8213 lun->flags &= ~CTL_LUN_PR_RESERVED; 8214 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8215 8216 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8217 || lun->res_type == SPR_TYPE_EX_AC_RO) 8218 && lun->pr_key_count) { 8219 /* 8220 * If the reservation is a registrants 8221 * only type we need to generate a UA 8222 * for other registered inits. The 8223 * sense code should be RESERVATIONS 8224 * RELEASED 8225 */ 8226 8227 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8228 if (lun->per_res[ 8229 i+persis_offset].registered 8230 == 0) 8231 continue; 8232 lun->pending_sense[i 8233 ].ua_pending |= 8234 CTL_UA_RES_RELEASE; 8235 } 8236 } 8237 lun->res_type = 0; 8238 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8239 if (lun->pr_key_count==0) { 8240 lun->flags &= ~CTL_LUN_PR_RESERVED; 8241 lun->res_type = 0; 8242 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8243 } 8244 } 8245 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8246 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8247 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8248 persis_io.pr.pr_info.residx = residx; 8249 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8250 &persis_io, sizeof(persis_io), 0 )) > 8251 CTL_HA_STATUS_SUCCESS) { 8252 printf("CTL:Persis Out error returned from " 8253 "ctl_ha_msg_send %d\n", isc_retval); 8254 } 8255 } else /* sa_res_key != 0 */ { 8256 8257 /* 8258 * If we aren't registered currently then increment 8259 * the key count and set the registered flag. 8260 */ 8261 if (!lun->per_res[residx].registered) { 8262 lun->pr_key_count++; 8263 lun->per_res[residx].registered = 1; 8264 } 8265 8266 memcpy(&lun->per_res[residx].res_key, 8267 param->serv_act_res_key, 8268 ctl_min(sizeof(param->serv_act_res_key), 8269 sizeof(lun->per_res[residx].res_key))); 8270 8271 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8272 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8273 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8274 persis_io.pr.pr_info.residx = residx; 8275 memcpy(persis_io.pr.pr_info.sa_res_key, 8276 param->serv_act_res_key, 8277 sizeof(param->serv_act_res_key)); 8278 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8279 &persis_io, sizeof(persis_io), 0)) > 8280 CTL_HA_STATUS_SUCCESS) { 8281 printf("CTL:Persis Out error returned from " 8282 "ctl_ha_msg_send %d\n", isc_retval); 8283 } 8284 } 8285 lun->PRGeneration++; 8286 mtx_unlock(&lun->lun_lock); 8287 8288 break; 8289 } 8290 case SPRO_RESERVE: 8291#if 0 8292 printf("Reserve executed type %d\n", type); 8293#endif 8294 mtx_lock(&lun->lun_lock); 8295 if (lun->flags & CTL_LUN_PR_RESERVED) { 8296 /* 8297 * if this isn't the reservation holder and it's 8298 * not a "all registrants" type or if the type is 8299 * different then we have a conflict 8300 */ 8301 if ((lun->pr_res_idx != residx 8302 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8303 || lun->res_type != type) { 8304 mtx_unlock(&lun->lun_lock); 8305 free(ctsio->kern_data_ptr, M_CTL); 8306 ctl_set_reservation_conflict(ctsio); 8307 ctl_done((union ctl_io *)ctsio); 8308 return (CTL_RETVAL_COMPLETE); 8309 } 8310 mtx_unlock(&lun->lun_lock); 8311 } else /* create a reservation */ { 8312 /* 8313 * If it's not an "all registrants" type record 8314 * reservation holder 8315 */ 8316 if (type != SPR_TYPE_WR_EX_AR 8317 && type != SPR_TYPE_EX_AC_AR) 8318 lun->pr_res_idx = residx; /* Res holder */ 8319 else 8320 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8321 8322 lun->flags |= CTL_LUN_PR_RESERVED; 8323 lun->res_type = type; 8324 8325 mtx_unlock(&lun->lun_lock); 8326 8327 /* send msg to other side */ 8328 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8329 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8330 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8331 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8332 persis_io.pr.pr_info.res_type = type; 8333 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8334 &persis_io, sizeof(persis_io), 0)) > 8335 CTL_HA_STATUS_SUCCESS) { 8336 printf("CTL:Persis Out error returned from " 8337 "ctl_ha_msg_send %d\n", isc_retval); 8338 } 8339 } 8340 break; 8341 8342 case SPRO_RELEASE: 8343 mtx_lock(&lun->lun_lock); 8344 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8345 /* No reservation exists return good status */ 8346 mtx_unlock(&lun->lun_lock); 8347 goto done; 8348 } 8349 /* 8350 * Is this nexus a reservation holder? 8351 */ 8352 if (lun->pr_res_idx != residx 8353 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8354 /* 8355 * not a res holder return good status but 8356 * do nothing 8357 */ 8358 mtx_unlock(&lun->lun_lock); 8359 goto done; 8360 } 8361 8362 if (lun->res_type != type) { 8363 mtx_unlock(&lun->lun_lock); 8364 free(ctsio->kern_data_ptr, M_CTL); 8365 ctl_set_illegal_pr_release(ctsio); 8366 ctl_done((union ctl_io *)ctsio); 8367 return (CTL_RETVAL_COMPLETE); 8368 } 8369 8370 /* okay to release */ 8371 lun->flags &= ~CTL_LUN_PR_RESERVED; 8372 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8373 lun->res_type = 0; 8374 8375 /* 8376 * if this isn't an exclusive access 8377 * res generate UA for all other 8378 * registrants. 8379 */ 8380 if (type != SPR_TYPE_EX_AC 8381 && type != SPR_TYPE_WR_EX) { 8382 /* 8383 * temporarily unregister so we don't generate UA 8384 */ 8385 lun->per_res[residx].registered = 0; 8386 8387 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8388 if (lun->per_res[i+persis_offset].registered 8389 == 0) 8390 continue; 8391 lun->pending_sense[i].ua_pending |= 8392 CTL_UA_RES_RELEASE; 8393 } 8394 8395 lun->per_res[residx].registered = 1; 8396 } 8397 mtx_unlock(&lun->lun_lock); 8398 /* Send msg to other side */ 8399 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8400 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8401 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8402 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8403 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8404 printf("CTL:Persis Out error returned from " 8405 "ctl_ha_msg_send %d\n", isc_retval); 8406 } 8407 break; 8408 8409 case SPRO_CLEAR: 8410 /* send msg to other side */ 8411 8412 mtx_lock(&lun->lun_lock); 8413 lun->flags &= ~CTL_LUN_PR_RESERVED; 8414 lun->res_type = 0; 8415 lun->pr_key_count = 0; 8416 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8417 8418 8419 memset(&lun->per_res[residx].res_key, 8420 0, sizeof(lun->per_res[residx].res_key)); 8421 lun->per_res[residx].registered = 0; 8422 8423 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8424 if (lun->per_res[i].registered) { 8425 if (!persis_offset && i < CTL_MAX_INITIATORS) 8426 lun->pending_sense[i].ua_pending |= 8427 CTL_UA_RES_PREEMPT; 8428 else if (persis_offset && i >= persis_offset) 8429 lun->pending_sense[i-persis_offset 8430 ].ua_pending |= CTL_UA_RES_PREEMPT; 8431 8432 memset(&lun->per_res[i].res_key, 8433 0, sizeof(struct scsi_per_res_key)); 8434 lun->per_res[i].registered = 0; 8435 } 8436 lun->PRGeneration++; 8437 mtx_unlock(&lun->lun_lock); 8438 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8439 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8440 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8441 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8442 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8443 printf("CTL:Persis Out error returned from " 8444 "ctl_ha_msg_send %d\n", isc_retval); 8445 } 8446 break; 8447 8448 case SPRO_PREEMPT: { 8449 int nretval; 8450 8451 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8452 residx, ctsio, cdb, param); 8453 if (nretval != 0) 8454 return (CTL_RETVAL_COMPLETE); 8455 break; 8456 } 8457 default: 8458 panic("Invalid PR type %x", cdb->action); 8459 } 8460 8461done: 8462 free(ctsio->kern_data_ptr, M_CTL); 8463 ctl_set_success(ctsio); 8464 ctl_done((union ctl_io *)ctsio); 8465 8466 return (retval); 8467} 8468 8469/* 8470 * This routine is for handling a message from the other SC pertaining to 8471 * persistent reserve out. All the error checking will have been done 8472 * so only perorming the action need be done here to keep the two 8473 * in sync. 8474 */ 8475static void 8476ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8477{ 8478 struct ctl_lun *lun; 8479 struct ctl_softc *softc; 8480 int i; 8481 uint32_t targ_lun; 8482 8483 softc = control_softc; 8484 8485 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8486 lun = softc->ctl_luns[targ_lun]; 8487 mtx_lock(&lun->lun_lock); 8488 switch(msg->pr.pr_info.action) { 8489 case CTL_PR_REG_KEY: 8490 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8491 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8492 lun->pr_key_count++; 8493 } 8494 lun->PRGeneration++; 8495 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8496 msg->pr.pr_info.sa_res_key, 8497 sizeof(struct scsi_per_res_key)); 8498 break; 8499 8500 case CTL_PR_UNREG_KEY: 8501 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8502 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8503 0, sizeof(struct scsi_per_res_key)); 8504 lun->pr_key_count--; 8505 8506 /* XXX Need to see if the reservation has been released */ 8507 /* if so do we need to generate UA? */ 8508 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8509 lun->flags &= ~CTL_LUN_PR_RESERVED; 8510 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8511 8512 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8513 || lun->res_type == SPR_TYPE_EX_AC_RO) 8514 && lun->pr_key_count) { 8515 /* 8516 * If the reservation is a registrants 8517 * only type we need to generate a UA 8518 * for other registered inits. The 8519 * sense code should be RESERVATIONS 8520 * RELEASED 8521 */ 8522 8523 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8524 if (lun->per_res[i+ 8525 persis_offset].registered == 0) 8526 continue; 8527 8528 lun->pending_sense[i 8529 ].ua_pending |= 8530 CTL_UA_RES_RELEASE; 8531 } 8532 } 8533 lun->res_type = 0; 8534 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8535 if (lun->pr_key_count==0) { 8536 lun->flags &= ~CTL_LUN_PR_RESERVED; 8537 lun->res_type = 0; 8538 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8539 } 8540 } 8541 lun->PRGeneration++; 8542 break; 8543 8544 case CTL_PR_RESERVE: 8545 lun->flags |= CTL_LUN_PR_RESERVED; 8546 lun->res_type = msg->pr.pr_info.res_type; 8547 lun->pr_res_idx = msg->pr.pr_info.residx; 8548 8549 break; 8550 8551 case CTL_PR_RELEASE: 8552 /* 8553 * if this isn't an exclusive access res generate UA for all 8554 * other registrants. 8555 */ 8556 if (lun->res_type != SPR_TYPE_EX_AC 8557 && lun->res_type != SPR_TYPE_WR_EX) { 8558 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8559 if (lun->per_res[i+persis_offset].registered) 8560 lun->pending_sense[i].ua_pending |= 8561 CTL_UA_RES_RELEASE; 8562 } 8563 8564 lun->flags &= ~CTL_LUN_PR_RESERVED; 8565 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8566 lun->res_type = 0; 8567 break; 8568 8569 case CTL_PR_PREEMPT: 8570 ctl_pro_preempt_other(lun, msg); 8571 break; 8572 case CTL_PR_CLEAR: 8573 lun->flags &= ~CTL_LUN_PR_RESERVED; 8574 lun->res_type = 0; 8575 lun->pr_key_count = 0; 8576 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8577 8578 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8579 if (lun->per_res[i].registered == 0) 8580 continue; 8581 if (!persis_offset 8582 && i < CTL_MAX_INITIATORS) 8583 lun->pending_sense[i].ua_pending |= 8584 CTL_UA_RES_PREEMPT; 8585 else if (persis_offset 8586 && i >= persis_offset) 8587 lun->pending_sense[i-persis_offset].ua_pending|= 8588 CTL_UA_RES_PREEMPT; 8589 memset(&lun->per_res[i].res_key, 0, 8590 sizeof(struct scsi_per_res_key)); 8591 lun->per_res[i].registered = 0; 8592 } 8593 lun->PRGeneration++; 8594 break; 8595 } 8596 8597 mtx_unlock(&lun->lun_lock); 8598} 8599 8600int 8601ctl_read_write(struct ctl_scsiio *ctsio) 8602{ 8603 struct ctl_lun *lun; 8604 struct ctl_lba_len_flags *lbalen; 8605 uint64_t lba; 8606 uint32_t num_blocks; 8607 int fua, dpo; 8608 int retval; 8609 int isread; 8610 8611 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8612 8613 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8614 8615 fua = 0; 8616 dpo = 0; 8617 8618 retval = CTL_RETVAL_COMPLETE; 8619 8620 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8621 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8622 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8623 uint32_t residx; 8624 8625 /* 8626 * XXX KDM need a lock here. 8627 */ 8628 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8629 if ((lun->res_type == SPR_TYPE_EX_AC 8630 && residx != lun->pr_res_idx) 8631 || ((lun->res_type == SPR_TYPE_EX_AC_RO 8632 || lun->res_type == SPR_TYPE_EX_AC_AR) 8633 && !lun->per_res[residx].registered)) { 8634 ctl_set_reservation_conflict(ctsio); 8635 ctl_done((union ctl_io *)ctsio); 8636 return (CTL_RETVAL_COMPLETE); 8637 } 8638 } 8639 8640 switch (ctsio->cdb[0]) { 8641 case READ_6: 8642 case WRITE_6: { 8643 struct scsi_rw_6 *cdb; 8644 8645 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8646 8647 lba = scsi_3btoul(cdb->addr); 8648 /* only 5 bits are valid in the most significant address byte */ 8649 lba &= 0x1fffff; 8650 num_blocks = cdb->length; 8651 /* 8652 * This is correct according to SBC-2. 8653 */ 8654 if (num_blocks == 0) 8655 num_blocks = 256; 8656 break; 8657 } 8658 case READ_10: 8659 case WRITE_10: { 8660 struct scsi_rw_10 *cdb; 8661 8662 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8663 8664 if (cdb->byte2 & SRW10_FUA) 8665 fua = 1; 8666 if (cdb->byte2 & SRW10_DPO) 8667 dpo = 1; 8668 8669 lba = scsi_4btoul(cdb->addr); 8670 num_blocks = scsi_2btoul(cdb->length); 8671 break; 8672 } 8673 case WRITE_VERIFY_10: { 8674 struct scsi_write_verify_10 *cdb; 8675 8676 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8677 8678 /* 8679 * XXX KDM we should do actual write verify support at some 8680 * point. This is obviously fake, we're just translating 8681 * things to a write. So we don't even bother checking the 8682 * BYTCHK field, since we don't do any verification. If 8683 * the user asks for it, we'll just pretend we did it. 8684 */ 8685 if (cdb->byte2 & SWV_DPO) 8686 dpo = 1; 8687 8688 lba = scsi_4btoul(cdb->addr); 8689 num_blocks = scsi_2btoul(cdb->length); 8690 break; 8691 } 8692 case READ_12: 8693 case WRITE_12: { 8694 struct scsi_rw_12 *cdb; 8695 8696 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8697 8698 if (cdb->byte2 & SRW12_FUA) 8699 fua = 1; 8700 if (cdb->byte2 & SRW12_DPO) 8701 dpo = 1; 8702 lba = scsi_4btoul(cdb->addr); 8703 num_blocks = scsi_4btoul(cdb->length); 8704 break; 8705 } 8706 case WRITE_VERIFY_12: { 8707 struct scsi_write_verify_12 *cdb; 8708 8709 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8710 8711 if (cdb->byte2 & SWV_DPO) 8712 dpo = 1; 8713 8714 lba = scsi_4btoul(cdb->addr); 8715 num_blocks = scsi_4btoul(cdb->length); 8716 8717 break; 8718 } 8719 case READ_16: 8720 case WRITE_16: { 8721 struct scsi_rw_16 *cdb; 8722 8723 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8724 8725 if (cdb->byte2 & SRW12_FUA) 8726 fua = 1; 8727 if (cdb->byte2 & SRW12_DPO) 8728 dpo = 1; 8729 8730 lba = scsi_8btou64(cdb->addr); 8731 num_blocks = scsi_4btoul(cdb->length); 8732 break; 8733 } 8734 case WRITE_VERIFY_16: { 8735 struct scsi_write_verify_16 *cdb; 8736 8737 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8738 8739 if (cdb->byte2 & SWV_DPO) 8740 dpo = 1; 8741 8742 lba = scsi_8btou64(cdb->addr); 8743 num_blocks = scsi_4btoul(cdb->length); 8744 break; 8745 } 8746 default: 8747 /* 8748 * We got a command we don't support. This shouldn't 8749 * happen, commands should be filtered out above us. 8750 */ 8751 ctl_set_invalid_opcode(ctsio); 8752 ctl_done((union ctl_io *)ctsio); 8753 8754 return (CTL_RETVAL_COMPLETE); 8755 break; /* NOTREACHED */ 8756 } 8757 8758 /* 8759 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 8760 * interesting for us, but if RAIDCore is in write-back mode, 8761 * getting it to do write-through for a particular transaction may 8762 * not be possible. 8763 */ 8764 8765 /* 8766 * The first check is to make sure we're in bounds, the second 8767 * check is to catch wrap-around problems. If the lba + num blocks 8768 * is less than the lba, then we've wrapped around and the block 8769 * range is invalid anyway. 8770 */ 8771 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8772 || ((lba + num_blocks) < lba)) { 8773 ctl_set_lba_out_of_range(ctsio); 8774 ctl_done((union ctl_io *)ctsio); 8775 return (CTL_RETVAL_COMPLETE); 8776 } 8777 8778 /* 8779 * According to SBC-3, a transfer length of 0 is not an error. 8780 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8781 * translates to 256 blocks for those commands. 8782 */ 8783 if (num_blocks == 0) { 8784 ctl_set_success(ctsio); 8785 ctl_done((union ctl_io *)ctsio); 8786 return (CTL_RETVAL_COMPLETE); 8787 } 8788 8789 lbalen = (struct ctl_lba_len_flags *) 8790 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8791 lbalen->lba = lba; 8792 lbalen->len = num_blocks; 8793 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 8794 8795 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8796 ctsio->kern_rel_offset = 0; 8797 8798 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8799 8800 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8801 8802 return (retval); 8803} 8804 8805static int 8806ctl_cnw_cont(union ctl_io *io) 8807{ 8808 struct ctl_scsiio *ctsio; 8809 struct ctl_lun *lun; 8810 struct ctl_lba_len_flags *lbalen; 8811 int retval; 8812 8813 ctsio = &io->scsiio; 8814 ctsio->io_hdr.status = CTL_STATUS_NONE; 8815 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8816 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8817 lbalen = (struct ctl_lba_len_flags *) 8818 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8819 lbalen->flags = CTL_LLF_WRITE; 8820 8821 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8822 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8823 return (retval); 8824} 8825 8826int 8827ctl_cnw(struct ctl_scsiio *ctsio) 8828{ 8829 struct ctl_lun *lun; 8830 struct ctl_lba_len_flags *lbalen; 8831 uint64_t lba; 8832 uint32_t num_blocks; 8833 int fua, dpo; 8834 int retval; 8835 8836 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8837 8838 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8839 8840 fua = 0; 8841 dpo = 0; 8842 8843 retval = CTL_RETVAL_COMPLETE; 8844 8845 switch (ctsio->cdb[0]) { 8846 case COMPARE_AND_WRITE: { 8847 struct scsi_compare_and_write *cdb; 8848 8849 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8850 8851 if (cdb->byte2 & SRW10_FUA) 8852 fua = 1; 8853 if (cdb->byte2 & SRW10_DPO) 8854 dpo = 1; 8855 lba = scsi_8btou64(cdb->addr); 8856 num_blocks = cdb->length; 8857 break; 8858 } 8859 default: 8860 /* 8861 * We got a command we don't support. This shouldn't 8862 * happen, commands should be filtered out above us. 8863 */ 8864 ctl_set_invalid_opcode(ctsio); 8865 ctl_done((union ctl_io *)ctsio); 8866 8867 return (CTL_RETVAL_COMPLETE); 8868 break; /* NOTREACHED */ 8869 } 8870 8871 /* 8872 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 8873 * interesting for us, but if RAIDCore is in write-back mode, 8874 * getting it to do write-through for a particular transaction may 8875 * not be possible. 8876 */ 8877 8878 /* 8879 * The first check is to make sure we're in bounds, the second 8880 * check is to catch wrap-around problems. If the lba + num blocks 8881 * is less than the lba, then we've wrapped around and the block 8882 * range is invalid anyway. 8883 */ 8884 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8885 || ((lba + num_blocks) < lba)) { 8886 ctl_set_lba_out_of_range(ctsio); 8887 ctl_done((union ctl_io *)ctsio); 8888 return (CTL_RETVAL_COMPLETE); 8889 } 8890 8891 /* 8892 * According to SBC-3, a transfer length of 0 is not an error. 8893 */ 8894 if (num_blocks == 0) { 8895 ctl_set_success(ctsio); 8896 ctl_done((union ctl_io *)ctsio); 8897 return (CTL_RETVAL_COMPLETE); 8898 } 8899 8900 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8901 ctsio->kern_rel_offset = 0; 8902 8903 /* 8904 * Set the IO_CONT flag, so that if this I/O gets passed to 8905 * ctl_data_submit_done(), it'll get passed back to 8906 * ctl_ctl_cnw_cont() for further processing. 8907 */ 8908 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8909 ctsio->io_cont = ctl_cnw_cont; 8910 8911 lbalen = (struct ctl_lba_len_flags *) 8912 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8913 lbalen->lba = lba; 8914 lbalen->len = num_blocks; 8915 lbalen->flags = CTL_LLF_COMPARE; 8916 8917 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8918 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8919 return (retval); 8920} 8921 8922int 8923ctl_verify(struct ctl_scsiio *ctsio) 8924{ 8925 struct ctl_lun *lun; 8926 struct ctl_lba_len_flags *lbalen; 8927 uint64_t lba; 8928 uint32_t num_blocks; 8929 int bytchk, dpo; 8930 int retval; 8931 8932 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8933 8934 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8935 8936 bytchk = 0; 8937 dpo = 0; 8938 retval = CTL_RETVAL_COMPLETE; 8939 8940 switch (ctsio->cdb[0]) { 8941 case VERIFY_10: { 8942 struct scsi_verify_10 *cdb; 8943 8944 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8945 if (cdb->byte2 & SVFY_BYTCHK) 8946 bytchk = 1; 8947 if (cdb->byte2 & SVFY_DPO) 8948 dpo = 1; 8949 lba = scsi_4btoul(cdb->addr); 8950 num_blocks = scsi_2btoul(cdb->length); 8951 break; 8952 } 8953 case VERIFY_12: { 8954 struct scsi_verify_12 *cdb; 8955 8956 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8957 if (cdb->byte2 & SVFY_BYTCHK) 8958 bytchk = 1; 8959 if (cdb->byte2 & SVFY_DPO) 8960 dpo = 1; 8961 lba = scsi_4btoul(cdb->addr); 8962 num_blocks = scsi_4btoul(cdb->length); 8963 break; 8964 } 8965 case VERIFY_16: { 8966 struct scsi_rw_16 *cdb; 8967 8968 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8969 if (cdb->byte2 & SVFY_BYTCHK) 8970 bytchk = 1; 8971 if (cdb->byte2 & SVFY_DPO) 8972 dpo = 1; 8973 lba = scsi_8btou64(cdb->addr); 8974 num_blocks = scsi_4btoul(cdb->length); 8975 break; 8976 } 8977 default: 8978 /* 8979 * We got a command we don't support. This shouldn't 8980 * happen, commands should be filtered out above us. 8981 */ 8982 ctl_set_invalid_opcode(ctsio); 8983 ctl_done((union ctl_io *)ctsio); 8984 return (CTL_RETVAL_COMPLETE); 8985 } 8986 8987 /* 8988 * The first check is to make sure we're in bounds, the second 8989 * check is to catch wrap-around problems. If the lba + num blocks 8990 * is less than the lba, then we've wrapped around and the block 8991 * range is invalid anyway. 8992 */ 8993 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8994 || ((lba + num_blocks) < lba)) { 8995 ctl_set_lba_out_of_range(ctsio); 8996 ctl_done((union ctl_io *)ctsio); 8997 return (CTL_RETVAL_COMPLETE); 8998 } 8999 9000 /* 9001 * According to SBC-3, a transfer length of 0 is not an error. 9002 */ 9003 if (num_blocks == 0) { 9004 ctl_set_success(ctsio); 9005 ctl_done((union ctl_io *)ctsio); 9006 return (CTL_RETVAL_COMPLETE); 9007 } 9008 9009 lbalen = (struct ctl_lba_len_flags *) 9010 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9011 lbalen->lba = lba; 9012 lbalen->len = num_blocks; 9013 if (bytchk) { 9014 lbalen->flags = CTL_LLF_COMPARE; 9015 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9016 } else { 9017 lbalen->flags = CTL_LLF_VERIFY; 9018 ctsio->kern_total_len = 0; 9019 } 9020 ctsio->kern_rel_offset = 0; 9021 9022 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9023 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9024 return (retval); 9025} 9026 9027int 9028ctl_report_luns(struct ctl_scsiio *ctsio) 9029{ 9030 struct scsi_report_luns *cdb; 9031 struct scsi_report_luns_data *lun_data; 9032 struct ctl_lun *lun, *request_lun; 9033 int num_luns, retval; 9034 uint32_t alloc_len, lun_datalen; 9035 int num_filled, well_known; 9036 uint32_t initidx, targ_lun_id, lun_id; 9037 9038 retval = CTL_RETVAL_COMPLETE; 9039 well_known = 0; 9040 9041 cdb = (struct scsi_report_luns *)ctsio->cdb; 9042 9043 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9044 9045 mtx_lock(&control_softc->ctl_lock); 9046 num_luns = control_softc->num_luns; 9047 mtx_unlock(&control_softc->ctl_lock); 9048 9049 switch (cdb->select_report) { 9050 case RPL_REPORT_DEFAULT: 9051 case RPL_REPORT_ALL: 9052 break; 9053 case RPL_REPORT_WELLKNOWN: 9054 well_known = 1; 9055 num_luns = 0; 9056 break; 9057 default: 9058 ctl_set_invalid_field(ctsio, 9059 /*sks_valid*/ 1, 9060 /*command*/ 1, 9061 /*field*/ 2, 9062 /*bit_valid*/ 0, 9063 /*bit*/ 0); 9064 ctl_done((union ctl_io *)ctsio); 9065 return (retval); 9066 break; /* NOTREACHED */ 9067 } 9068 9069 alloc_len = scsi_4btoul(cdb->length); 9070 /* 9071 * The initiator has to allocate at least 16 bytes for this request, 9072 * so he can at least get the header and the first LUN. Otherwise 9073 * we reject the request (per SPC-3 rev 14, section 6.21). 9074 */ 9075 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9076 sizeof(struct scsi_report_luns_lundata))) { 9077 ctl_set_invalid_field(ctsio, 9078 /*sks_valid*/ 1, 9079 /*command*/ 1, 9080 /*field*/ 6, 9081 /*bit_valid*/ 0, 9082 /*bit*/ 0); 9083 ctl_done((union ctl_io *)ctsio); 9084 return (retval); 9085 } 9086 9087 request_lun = (struct ctl_lun *) 9088 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9089 9090 lun_datalen = sizeof(*lun_data) + 9091 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9092 9093 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9094 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9095 ctsio->kern_sg_entries = 0; 9096 9097 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9098 9099 mtx_lock(&control_softc->ctl_lock); 9100 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9101 lun_id = targ_lun_id; 9102 if (ctsio->io_hdr.nexus.lun_map_fn != NULL) 9103 lun_id = ctsio->io_hdr.nexus.lun_map_fn(ctsio->io_hdr.nexus.lun_map_arg, lun_id); 9104 if (lun_id >= CTL_MAX_LUNS) 9105 continue; 9106 lun = control_softc->ctl_luns[lun_id]; 9107 if (lun == NULL) 9108 continue; 9109 9110 if (targ_lun_id <= 0xff) { 9111 /* 9112 * Peripheral addressing method, bus number 0. 9113 */ 9114 lun_data->luns[num_filled].lundata[0] = 9115 RPL_LUNDATA_ATYP_PERIPH; 9116 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9117 num_filled++; 9118 } else if (targ_lun_id <= 0x3fff) { 9119 /* 9120 * Flat addressing method. 9121 */ 9122 lun_data->luns[num_filled].lundata[0] = 9123 RPL_LUNDATA_ATYP_FLAT | 9124 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9125#ifdef OLDCTLHEADERS 9126 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9127 (targ_lun_id & SRLD_BUS_LUN_MASK); 9128#endif 9129 lun_data->luns[num_filled].lundata[1] = 9130#ifdef OLDCTLHEADERS 9131 targ_lun_id >> SRLD_BUS_LUN_BITS; 9132#endif 9133 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9134 num_filled++; 9135 } else { 9136 printf("ctl_report_luns: bogus LUN number %jd, " 9137 "skipping\n", (intmax_t)targ_lun_id); 9138 } 9139 /* 9140 * According to SPC-3, rev 14 section 6.21: 9141 * 9142 * "The execution of a REPORT LUNS command to any valid and 9143 * installed logical unit shall clear the REPORTED LUNS DATA 9144 * HAS CHANGED unit attention condition for all logical 9145 * units of that target with respect to the requesting 9146 * initiator. A valid and installed logical unit is one 9147 * having a PERIPHERAL QUALIFIER of 000b in the standard 9148 * INQUIRY data (see 6.4.2)." 9149 * 9150 * If request_lun is NULL, the LUN this report luns command 9151 * was issued to is either disabled or doesn't exist. In that 9152 * case, we shouldn't clear any pending lun change unit 9153 * attention. 9154 */ 9155 if (request_lun != NULL) { 9156 mtx_lock(&lun->lun_lock); 9157 lun->pending_sense[initidx].ua_pending &= 9158 ~CTL_UA_LUN_CHANGE; 9159 mtx_unlock(&lun->lun_lock); 9160 } 9161 } 9162 mtx_unlock(&control_softc->ctl_lock); 9163 9164 /* 9165 * It's quite possible that we've returned fewer LUNs than we allocated 9166 * space for. Trim it. 9167 */ 9168 lun_datalen = sizeof(*lun_data) + 9169 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9170 9171 if (lun_datalen < alloc_len) { 9172 ctsio->residual = alloc_len - lun_datalen; 9173 ctsio->kern_data_len = lun_datalen; 9174 ctsio->kern_total_len = lun_datalen; 9175 } else { 9176 ctsio->residual = 0; 9177 ctsio->kern_data_len = alloc_len; 9178 ctsio->kern_total_len = alloc_len; 9179 } 9180 ctsio->kern_data_resid = 0; 9181 ctsio->kern_rel_offset = 0; 9182 ctsio->kern_sg_entries = 0; 9183 9184 /* 9185 * We set this to the actual data length, regardless of how much 9186 * space we actually have to return results. If the user looks at 9187 * this value, he'll know whether or not he allocated enough space 9188 * and reissue the command if necessary. We don't support well 9189 * known logical units, so if the user asks for that, return none. 9190 */ 9191 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9192 9193 /* 9194 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9195 * this request. 9196 */ 9197 ctsio->scsi_status = SCSI_STATUS_OK; 9198 9199 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9200 ctsio->be_move_done = ctl_config_move_done; 9201 ctl_datamove((union ctl_io *)ctsio); 9202 9203 return (retval); 9204} 9205 9206int 9207ctl_request_sense(struct ctl_scsiio *ctsio) 9208{ 9209 struct scsi_request_sense *cdb; 9210 struct scsi_sense_data *sense_ptr; 9211 struct ctl_lun *lun; 9212 uint32_t initidx; 9213 int have_error; 9214 scsi_sense_data_type sense_format; 9215 9216 cdb = (struct scsi_request_sense *)ctsio->cdb; 9217 9218 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9219 9220 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9221 9222 /* 9223 * Determine which sense format the user wants. 9224 */ 9225 if (cdb->byte2 & SRS_DESC) 9226 sense_format = SSD_TYPE_DESC; 9227 else 9228 sense_format = SSD_TYPE_FIXED; 9229 9230 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9231 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9232 ctsio->kern_sg_entries = 0; 9233 9234 /* 9235 * struct scsi_sense_data, which is currently set to 256 bytes, is 9236 * larger than the largest allowed value for the length field in the 9237 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9238 */ 9239 ctsio->residual = 0; 9240 ctsio->kern_data_len = cdb->length; 9241 ctsio->kern_total_len = cdb->length; 9242 9243 ctsio->kern_data_resid = 0; 9244 ctsio->kern_rel_offset = 0; 9245 ctsio->kern_sg_entries = 0; 9246 9247 /* 9248 * If we don't have a LUN, we don't have any pending sense. 9249 */ 9250 if (lun == NULL) 9251 goto no_sense; 9252 9253 have_error = 0; 9254 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9255 /* 9256 * Check for pending sense, and then for pending unit attentions. 9257 * Pending sense gets returned first, then pending unit attentions. 9258 */ 9259 mtx_lock(&lun->lun_lock); 9260 if (ctl_is_set(lun->have_ca, initidx)) { 9261 scsi_sense_data_type stored_format; 9262 9263 /* 9264 * Check to see which sense format was used for the stored 9265 * sense data. 9266 */ 9267 stored_format = scsi_sense_type( 9268 &lun->pending_sense[initidx].sense); 9269 9270 /* 9271 * If the user requested a different sense format than the 9272 * one we stored, then we need to convert it to the other 9273 * format. If we're going from descriptor to fixed format 9274 * sense data, we may lose things in translation, depending 9275 * on what options were used. 9276 * 9277 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9278 * for some reason we'll just copy it out as-is. 9279 */ 9280 if ((stored_format == SSD_TYPE_FIXED) 9281 && (sense_format == SSD_TYPE_DESC)) 9282 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9283 &lun->pending_sense[initidx].sense, 9284 (struct scsi_sense_data_desc *)sense_ptr); 9285 else if ((stored_format == SSD_TYPE_DESC) 9286 && (sense_format == SSD_TYPE_FIXED)) 9287 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9288 &lun->pending_sense[initidx].sense, 9289 (struct scsi_sense_data_fixed *)sense_ptr); 9290 else 9291 memcpy(sense_ptr, &lun->pending_sense[initidx].sense, 9292 ctl_min(sizeof(*sense_ptr), 9293 sizeof(lun->pending_sense[initidx].sense))); 9294 9295 ctl_clear_mask(lun->have_ca, initidx); 9296 have_error = 1; 9297 } else if (lun->pending_sense[initidx].ua_pending != CTL_UA_NONE) { 9298 ctl_ua_type ua_type; 9299 9300 ua_type = ctl_build_ua(lun->pending_sense[initidx].ua_pending, 9301 sense_ptr, sense_format); 9302 if (ua_type != CTL_UA_NONE) { 9303 have_error = 1; 9304 /* We're reporting this UA, so clear it */ 9305 lun->pending_sense[initidx].ua_pending &= ~ua_type; 9306 } 9307 } 9308 mtx_unlock(&lun->lun_lock); 9309 9310 /* 9311 * We already have a pending error, return it. 9312 */ 9313 if (have_error != 0) { 9314 /* 9315 * We report the SCSI status as OK, since the status of the 9316 * request sense command itself is OK. 9317 */ 9318 ctsio->scsi_status = SCSI_STATUS_OK; 9319 9320 /* 9321 * We report 0 for the sense length, because we aren't doing 9322 * autosense in this case. We're reporting sense as 9323 * parameter data. 9324 */ 9325 ctsio->sense_len = 0; 9326 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9327 ctsio->be_move_done = ctl_config_move_done; 9328 ctl_datamove((union ctl_io *)ctsio); 9329 9330 return (CTL_RETVAL_COMPLETE); 9331 } 9332 9333no_sense: 9334 9335 /* 9336 * No sense information to report, so we report that everything is 9337 * okay. 9338 */ 9339 ctl_set_sense_data(sense_ptr, 9340 lun, 9341 sense_format, 9342 /*current_error*/ 1, 9343 /*sense_key*/ SSD_KEY_NO_SENSE, 9344 /*asc*/ 0x00, 9345 /*ascq*/ 0x00, 9346 SSD_ELEM_NONE); 9347 9348 ctsio->scsi_status = SCSI_STATUS_OK; 9349 9350 /* 9351 * We report 0 for the sense length, because we aren't doing 9352 * autosense in this case. We're reporting sense as parameter data. 9353 */ 9354 ctsio->sense_len = 0; 9355 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9356 ctsio->be_move_done = ctl_config_move_done; 9357 ctl_datamove((union ctl_io *)ctsio); 9358 9359 return (CTL_RETVAL_COMPLETE); 9360} 9361 9362int 9363ctl_tur(struct ctl_scsiio *ctsio) 9364{ 9365 struct ctl_lun *lun; 9366 9367 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9368 9369 CTL_DEBUG_PRINT(("ctl_tur\n")); 9370 9371 if (lun == NULL) 9372 return (EINVAL); 9373 9374 ctsio->scsi_status = SCSI_STATUS_OK; 9375 ctsio->io_hdr.status = CTL_SUCCESS; 9376 9377 ctl_done((union ctl_io *)ctsio); 9378 9379 return (CTL_RETVAL_COMPLETE); 9380} 9381 9382#ifdef notyet 9383static int 9384ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9385{ 9386 9387} 9388#endif 9389 9390static int 9391ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9392{ 9393 struct scsi_vpd_supported_pages *pages; 9394 int sup_page_size; 9395 struct ctl_lun *lun; 9396 9397 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9398 9399 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9400 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9401 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9402 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9403 ctsio->kern_sg_entries = 0; 9404 9405 if (sup_page_size < alloc_len) { 9406 ctsio->residual = alloc_len - sup_page_size; 9407 ctsio->kern_data_len = sup_page_size; 9408 ctsio->kern_total_len = sup_page_size; 9409 } else { 9410 ctsio->residual = 0; 9411 ctsio->kern_data_len = alloc_len; 9412 ctsio->kern_total_len = alloc_len; 9413 } 9414 ctsio->kern_data_resid = 0; 9415 ctsio->kern_rel_offset = 0; 9416 ctsio->kern_sg_entries = 0; 9417 9418 /* 9419 * The control device is always connected. The disk device, on the 9420 * other hand, may not be online all the time. Need to change this 9421 * to figure out whether the disk device is actually online or not. 9422 */ 9423 if (lun != NULL) 9424 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9425 lun->be_lun->lun_type; 9426 else 9427 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9428 9429 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9430 /* Supported VPD pages */ 9431 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9432 /* Serial Number */ 9433 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9434 /* Device Identification */ 9435 pages->page_list[2] = SVPD_DEVICE_ID; 9436 /* Block limits */ 9437 pages->page_list[3] = SVPD_BLOCK_LIMITS; 9438 /* Logical Block Provisioning */ 9439 pages->page_list[4] = SVPD_LBP; 9440 9441 ctsio->scsi_status = SCSI_STATUS_OK; 9442 9443 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9444 ctsio->be_move_done = ctl_config_move_done; 9445 ctl_datamove((union ctl_io *)ctsio); 9446 9447 return (CTL_RETVAL_COMPLETE); 9448} 9449 9450static int 9451ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9452{ 9453 struct scsi_vpd_unit_serial_number *sn_ptr; 9454 struct ctl_lun *lun; 9455 9456 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9457 9458 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9459 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9460 ctsio->kern_sg_entries = 0; 9461 9462 if (sizeof(*sn_ptr) < alloc_len) { 9463 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9464 ctsio->kern_data_len = sizeof(*sn_ptr); 9465 ctsio->kern_total_len = sizeof(*sn_ptr); 9466 } else { 9467 ctsio->residual = 0; 9468 ctsio->kern_data_len = alloc_len; 9469 ctsio->kern_total_len = alloc_len; 9470 } 9471 ctsio->kern_data_resid = 0; 9472 ctsio->kern_rel_offset = 0; 9473 ctsio->kern_sg_entries = 0; 9474 9475 /* 9476 * The control device is always connected. The disk device, on the 9477 * other hand, may not be online all the time. Need to change this 9478 * to figure out whether the disk device is actually online or not. 9479 */ 9480 if (lun != NULL) 9481 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9482 lun->be_lun->lun_type; 9483 else 9484 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9485 9486 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9487 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9488 /* 9489 * If we don't have a LUN, we just leave the serial number as 9490 * all spaces. 9491 */ 9492 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9493 if (lun != NULL) { 9494 strncpy((char *)sn_ptr->serial_num, 9495 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9496 } 9497 ctsio->scsi_status = SCSI_STATUS_OK; 9498 9499 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9500 ctsio->be_move_done = ctl_config_move_done; 9501 ctl_datamove((union ctl_io *)ctsio); 9502 9503 return (CTL_RETVAL_COMPLETE); 9504} 9505 9506 9507static int 9508ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9509{ 9510 struct scsi_vpd_device_id *devid_ptr; 9511 struct scsi_vpd_id_descriptor *desc, *desc1; 9512 struct scsi_vpd_id_descriptor *desc2, *desc3; /* for types 4h and 5h */ 9513 struct scsi_vpd_id_t10 *t10id; 9514 struct ctl_softc *ctl_softc; 9515 struct ctl_lun *lun; 9516 struct ctl_frontend *fe; 9517 char *val; 9518 int data_len, devid_len; 9519 9520 ctl_softc = control_softc; 9521 9522 fe = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9523 9524 if (fe->devid != NULL) 9525 return ((fe->devid)(ctsio, alloc_len)); 9526 9527 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9528 9529 if (lun == NULL) { 9530 devid_len = CTL_DEVID_MIN_LEN; 9531 } else { 9532 devid_len = max(CTL_DEVID_MIN_LEN, 9533 strnlen(lun->be_lun->device_id, CTL_DEVID_LEN)); 9534 } 9535 9536 data_len = sizeof(struct scsi_vpd_device_id) + 9537 sizeof(struct scsi_vpd_id_descriptor) + 9538 sizeof(struct scsi_vpd_id_t10) + devid_len + 9539 sizeof(struct scsi_vpd_id_descriptor) + CTL_WWPN_LEN + 9540 sizeof(struct scsi_vpd_id_descriptor) + 9541 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9542 sizeof(struct scsi_vpd_id_descriptor) + 9543 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9544 9545 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9546 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9547 ctsio->kern_sg_entries = 0; 9548 9549 if (data_len < alloc_len) { 9550 ctsio->residual = alloc_len - data_len; 9551 ctsio->kern_data_len = data_len; 9552 ctsio->kern_total_len = data_len; 9553 } else { 9554 ctsio->residual = 0; 9555 ctsio->kern_data_len = alloc_len; 9556 ctsio->kern_total_len = alloc_len; 9557 } 9558 ctsio->kern_data_resid = 0; 9559 ctsio->kern_rel_offset = 0; 9560 ctsio->kern_sg_entries = 0; 9561 9562 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9563 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 9564 desc1 = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9565 sizeof(struct scsi_vpd_id_t10) + devid_len); 9566 desc2 = (struct scsi_vpd_id_descriptor *)(&desc1->identifier[0] + 9567 CTL_WWPN_LEN); 9568 desc3 = (struct scsi_vpd_id_descriptor *)(&desc2->identifier[0] + 9569 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9570 9571 /* 9572 * The control device is always connected. The disk device, on the 9573 * other hand, may not be online all the time. 9574 */ 9575 if (lun != NULL) 9576 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9577 lun->be_lun->lun_type; 9578 else 9579 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9580 9581 devid_ptr->page_code = SVPD_DEVICE_ID; 9582 9583 scsi_ulto2b(data_len - 4, devid_ptr->length); 9584 9585 /* 9586 * For Fibre channel, 9587 */ 9588 if (fe->port_type == CTL_PORT_FC) 9589 { 9590 desc->proto_codeset = (SCSI_PROTO_FC << 4) | 9591 SVPD_ID_CODESET_ASCII; 9592 desc1->proto_codeset = (SCSI_PROTO_FC << 4) | 9593 SVPD_ID_CODESET_BINARY; 9594 } 9595 else 9596 { 9597 desc->proto_codeset = (SCSI_PROTO_SPI << 4) | 9598 SVPD_ID_CODESET_ASCII; 9599 desc1->proto_codeset = (SCSI_PROTO_SPI << 4) | 9600 SVPD_ID_CODESET_BINARY; 9601 } 9602 desc2->proto_codeset = desc3->proto_codeset = desc1->proto_codeset; 9603 9604 /* 9605 * We're using a LUN association here. i.e., this device ID is a 9606 * per-LUN identifier. 9607 */ 9608 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 9609 desc->length = sizeof(*t10id) + devid_len; 9610 if (lun == NULL || (val = ctl_get_opt(lun->be_lun, "vendor")) == NULL) { 9611 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 9612 } else { 9613 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 9614 strncpy(t10id->vendor, val, 9615 min(sizeof(t10id->vendor), strlen(val))); 9616 } 9617 9618 /* 9619 * desc1 is for the WWPN which is a port asscociation. 9620 */ 9621 desc1->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | SVPD_ID_TYPE_NAA; 9622 desc1->length = CTL_WWPN_LEN; 9623 /* XXX Call Reggie's get_WWNN func here then add port # to the end */ 9624 /* For testing just create the WWPN */ 9625#if 0 9626 ddb_GetWWNN((char *)desc1->identifier); 9627 9628 /* NOTE: if the port is 0 or 8 we don't want to subtract 1 */ 9629 /* This is so Copancontrol will return something sane */ 9630 if (ctsio->io_hdr.nexus.targ_port!=0 && 9631 ctsio->io_hdr.nexus.targ_port!=8) 9632 desc1->identifier[7] += ctsio->io_hdr.nexus.targ_port-1; 9633 else 9634 desc1->identifier[7] += ctsio->io_hdr.nexus.targ_port; 9635#endif 9636 9637 be64enc(desc1->identifier, fe->wwpn); 9638 9639 /* 9640 * desc2 is for the Relative Target Port(type 4h) identifier 9641 */ 9642 desc2->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT 9643 | SVPD_ID_TYPE_RELTARG; 9644 desc2->length = 4; 9645//#if 0 9646 /* NOTE: if the port is 0 or 8 we don't want to subtract 1 */ 9647 /* This is so Copancontrol will return something sane */ 9648 if (ctsio->io_hdr.nexus.targ_port!=0 && 9649 ctsio->io_hdr.nexus.targ_port!=8) 9650 desc2->identifier[3] = ctsio->io_hdr.nexus.targ_port - 1; 9651 else 9652 desc2->identifier[3] = ctsio->io_hdr.nexus.targ_port; 9653//#endif 9654 9655 /* 9656 * desc3 is for the Target Port Group(type 5h) identifier 9657 */ 9658 desc3->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT 9659 | SVPD_ID_TYPE_TPORTGRP; 9660 desc3->length = 4; 9661 if (ctsio->io_hdr.nexus.targ_port < CTL_MAX_PORTS || ctl_is_single) 9662 desc3->identifier[3] = 1; 9663 else 9664 desc3->identifier[3] = 2; 9665 9666 /* 9667 * If we've actually got a backend, copy the device id from the 9668 * per-LUN data. Otherwise, set it to all spaces. 9669 */ 9670 if (lun != NULL) { 9671 /* 9672 * Copy the backend's LUN ID. 9673 */ 9674 strncpy((char *)t10id->vendor_spec_id, 9675 (char *)lun->be_lun->device_id, devid_len); 9676 } else { 9677 /* 9678 * No backend, set this to spaces. 9679 */ 9680 memset(t10id->vendor_spec_id, 0x20, devid_len); 9681 } 9682 9683 ctsio->scsi_status = SCSI_STATUS_OK; 9684 9685 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9686 ctsio->be_move_done = ctl_config_move_done; 9687 ctl_datamove((union ctl_io *)ctsio); 9688 9689 return (CTL_RETVAL_COMPLETE); 9690} 9691 9692static int 9693ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9694{ 9695 struct scsi_vpd_block_limits *bl_ptr; 9696 struct ctl_lun *lun; 9697 int bs; 9698 9699 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9700 bs = lun->be_lun->blocksize; 9701 9702 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9703 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9704 ctsio->kern_sg_entries = 0; 9705 9706 if (sizeof(*bl_ptr) < alloc_len) { 9707 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9708 ctsio->kern_data_len = sizeof(*bl_ptr); 9709 ctsio->kern_total_len = sizeof(*bl_ptr); 9710 } else { 9711 ctsio->residual = 0; 9712 ctsio->kern_data_len = alloc_len; 9713 ctsio->kern_total_len = alloc_len; 9714 } 9715 ctsio->kern_data_resid = 0; 9716 ctsio->kern_rel_offset = 0; 9717 ctsio->kern_sg_entries = 0; 9718 9719 /* 9720 * The control device is always connected. The disk device, on the 9721 * other hand, may not be online all the time. Need to change this 9722 * to figure out whether the disk device is actually online or not. 9723 */ 9724 if (lun != NULL) 9725 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9726 lun->be_lun->lun_type; 9727 else 9728 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9729 9730 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9731 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 9732 bl_ptr->max_cmp_write_len = 0xff; 9733 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9734 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 9735 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9736 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9737 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9738 } 9739 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9740 9741 ctsio->scsi_status = SCSI_STATUS_OK; 9742 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9743 ctsio->be_move_done = ctl_config_move_done; 9744 ctl_datamove((union ctl_io *)ctsio); 9745 9746 return (CTL_RETVAL_COMPLETE); 9747} 9748 9749static int 9750ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9751{ 9752 struct scsi_vpd_logical_block_prov *lbp_ptr; 9753 struct ctl_lun *lun; 9754 int bs; 9755 9756 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9757 bs = lun->be_lun->blocksize; 9758 9759 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9760 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9761 ctsio->kern_sg_entries = 0; 9762 9763 if (sizeof(*lbp_ptr) < alloc_len) { 9764 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9765 ctsio->kern_data_len = sizeof(*lbp_ptr); 9766 ctsio->kern_total_len = sizeof(*lbp_ptr); 9767 } else { 9768 ctsio->residual = 0; 9769 ctsio->kern_data_len = alloc_len; 9770 ctsio->kern_total_len = alloc_len; 9771 } 9772 ctsio->kern_data_resid = 0; 9773 ctsio->kern_rel_offset = 0; 9774 ctsio->kern_sg_entries = 0; 9775 9776 /* 9777 * The control device is always connected. The disk device, on the 9778 * other hand, may not be online all the time. Need to change this 9779 * to figure out whether the disk device is actually online or not. 9780 */ 9781 if (lun != NULL) 9782 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9783 lun->be_lun->lun_type; 9784 else 9785 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9786 9787 lbp_ptr->page_code = SVPD_LBP; 9788 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 9789 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | SVPD_LBP_WS10; 9790 9791 ctsio->scsi_status = SCSI_STATUS_OK; 9792 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9793 ctsio->be_move_done = ctl_config_move_done; 9794 ctl_datamove((union ctl_io *)ctsio); 9795 9796 return (CTL_RETVAL_COMPLETE); 9797} 9798 9799static int 9800ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9801{ 9802 struct scsi_inquiry *cdb; 9803 struct ctl_lun *lun; 9804 int alloc_len, retval; 9805 9806 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9807 cdb = (struct scsi_inquiry *)ctsio->cdb; 9808 9809 retval = CTL_RETVAL_COMPLETE; 9810 9811 alloc_len = scsi_2btoul(cdb->length); 9812 9813 switch (cdb->page_code) { 9814 case SVPD_SUPPORTED_PAGES: 9815 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9816 break; 9817 case SVPD_UNIT_SERIAL_NUMBER: 9818 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9819 break; 9820 case SVPD_DEVICE_ID: 9821 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9822 break; 9823 case SVPD_BLOCK_LIMITS: 9824 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 9825 break; 9826 case SVPD_LBP: 9827 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 9828 break; 9829 default: 9830 ctl_set_invalid_field(ctsio, 9831 /*sks_valid*/ 1, 9832 /*command*/ 1, 9833 /*field*/ 2, 9834 /*bit_valid*/ 0, 9835 /*bit*/ 0); 9836 ctl_done((union ctl_io *)ctsio); 9837 retval = CTL_RETVAL_COMPLETE; 9838 break; 9839 } 9840 9841 return (retval); 9842} 9843 9844static int 9845ctl_inquiry_std(struct ctl_scsiio *ctsio) 9846{ 9847 struct scsi_inquiry_data *inq_ptr; 9848 struct scsi_inquiry *cdb; 9849 struct ctl_softc *ctl_softc; 9850 struct ctl_lun *lun; 9851 char *val; 9852 uint32_t alloc_len; 9853 int is_fc; 9854 9855 ctl_softc = control_softc; 9856 9857 /* 9858 * Figure out whether we're talking to a Fibre Channel port or not. 9859 * We treat the ioctl front end, and any SCSI adapters, as packetized 9860 * SCSI front ends. 9861 */ 9862 if (ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type != 9863 CTL_PORT_FC) 9864 is_fc = 0; 9865 else 9866 is_fc = 1; 9867 9868 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9869 cdb = (struct scsi_inquiry *)ctsio->cdb; 9870 alloc_len = scsi_2btoul(cdb->length); 9871 9872 /* 9873 * We malloc the full inquiry data size here and fill it 9874 * in. If the user only asks for less, we'll give him 9875 * that much. 9876 */ 9877 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 9878 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 9879 ctsio->kern_sg_entries = 0; 9880 ctsio->kern_data_resid = 0; 9881 ctsio->kern_rel_offset = 0; 9882 9883 if (sizeof(*inq_ptr) < alloc_len) { 9884 ctsio->residual = alloc_len - sizeof(*inq_ptr); 9885 ctsio->kern_data_len = sizeof(*inq_ptr); 9886 ctsio->kern_total_len = sizeof(*inq_ptr); 9887 } else { 9888 ctsio->residual = 0; 9889 ctsio->kern_data_len = alloc_len; 9890 ctsio->kern_total_len = alloc_len; 9891 } 9892 9893 /* 9894 * If we have a LUN configured, report it as connected. Otherwise, 9895 * report that it is offline or no device is supported, depending 9896 * on the value of inquiry_pq_no_lun. 9897 * 9898 * According to the spec (SPC-4 r34), the peripheral qualifier 9899 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 9900 * 9901 * "A peripheral device having the specified peripheral device type 9902 * is not connected to this logical unit. However, the device 9903 * server is capable of supporting the specified peripheral device 9904 * type on this logical unit." 9905 * 9906 * According to the same spec, the peripheral qualifier 9907 * SID_QUAL_BAD_LU (011b) is used in this scenario: 9908 * 9909 * "The device server is not capable of supporting a peripheral 9910 * device on this logical unit. For this peripheral qualifier the 9911 * peripheral device type shall be set to 1Fh. All other peripheral 9912 * device type values are reserved for this peripheral qualifier." 9913 * 9914 * Given the text, it would seem that we probably want to report that 9915 * the LUN is offline here. There is no LUN connected, but we can 9916 * support a LUN at the given LUN number. 9917 * 9918 * In the real world, though, it sounds like things are a little 9919 * different: 9920 * 9921 * - Linux, when presented with a LUN with the offline peripheral 9922 * qualifier, will create an sg driver instance for it. So when 9923 * you attach it to CTL, you wind up with a ton of sg driver 9924 * instances. (One for every LUN that Linux bothered to probe.) 9925 * Linux does this despite the fact that it issues a REPORT LUNs 9926 * to LUN 0 to get the inventory of supported LUNs. 9927 * 9928 * - There is other anecdotal evidence (from Emulex folks) about 9929 * arrays that use the offline peripheral qualifier for LUNs that 9930 * are on the "passive" path in an active/passive array. 9931 * 9932 * So the solution is provide a hopefully reasonable default 9933 * (return bad/no LUN) and allow the user to change the behavior 9934 * with a tunable/sysctl variable. 9935 */ 9936 if (lun != NULL) 9937 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9938 lun->be_lun->lun_type; 9939 else if (ctl_softc->inquiry_pq_no_lun == 0) 9940 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9941 else 9942 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 9943 9944 /* RMB in byte 2 is 0 */ 9945 inq_ptr->version = SCSI_REV_SPC3; 9946 9947 /* 9948 * According to SAM-3, even if a device only supports a single 9949 * level of LUN addressing, it should still set the HISUP bit: 9950 * 9951 * 4.9.1 Logical unit numbers overview 9952 * 9953 * All logical unit number formats described in this standard are 9954 * hierarchical in structure even when only a single level in that 9955 * hierarchy is used. The HISUP bit shall be set to one in the 9956 * standard INQUIRY data (see SPC-2) when any logical unit number 9957 * format described in this standard is used. Non-hierarchical 9958 * formats are outside the scope of this standard. 9959 * 9960 * Therefore we set the HiSup bit here. 9961 * 9962 * The reponse format is 2, per SPC-3. 9963 */ 9964 inq_ptr->response_format = SID_HiSup | 2; 9965 9966 inq_ptr->additional_length = sizeof(*inq_ptr) - 4; 9967 CTL_DEBUG_PRINT(("additional_length = %d\n", 9968 inq_ptr->additional_length)); 9969 9970 inq_ptr->spc3_flags = SPC3_SID_TPGS_IMPLICIT; 9971 /* 16 bit addressing */ 9972 if (is_fc == 0) 9973 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 9974 /* XXX set the SID_MultiP bit here if we're actually going to 9975 respond on multiple ports */ 9976 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 9977 9978 /* 16 bit data bus, synchronous transfers */ 9979 /* XXX these flags don't apply for FC */ 9980 if (is_fc == 0) 9981 inq_ptr->flags = SID_WBus16 | SID_Sync; 9982 /* 9983 * XXX KDM do we want to support tagged queueing on the control 9984 * device at all? 9985 */ 9986 if ((lun == NULL) 9987 || (lun->be_lun->lun_type != T_PROCESSOR)) 9988 inq_ptr->flags |= SID_CmdQue; 9989 /* 9990 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 9991 * We have 8 bytes for the vendor name, and 16 bytes for the device 9992 * name and 4 bytes for the revision. 9993 */ 9994 if (lun == NULL || (val = ctl_get_opt(lun->be_lun, "vendor")) == NULL) { 9995 strcpy(inq_ptr->vendor, CTL_VENDOR); 9996 } else { 9997 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 9998 strncpy(inq_ptr->vendor, val, 9999 min(sizeof(inq_ptr->vendor), strlen(val))); 10000 } 10001 if (lun == NULL) { 10002 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10003 } else if ((val = ctl_get_opt(lun->be_lun, "product")) == NULL) { 10004 switch (lun->be_lun->lun_type) { 10005 case T_DIRECT: 10006 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10007 break; 10008 case T_PROCESSOR: 10009 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10010 break; 10011 default: 10012 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10013 break; 10014 } 10015 } else { 10016 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10017 strncpy(inq_ptr->product, val, 10018 min(sizeof(inq_ptr->product), strlen(val))); 10019 } 10020 10021 /* 10022 * XXX make this a macro somewhere so it automatically gets 10023 * incremented when we make changes. 10024 */ 10025 if (lun == NULL || (val = ctl_get_opt(lun->be_lun, "revision")) == NULL) { 10026 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10027 } else { 10028 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10029 strncpy(inq_ptr->revision, val, 10030 min(sizeof(inq_ptr->revision), strlen(val))); 10031 } 10032 10033 /* 10034 * For parallel SCSI, we support double transition and single 10035 * transition clocking. We also support QAS (Quick Arbitration 10036 * and Selection) and Information Unit transfers on both the 10037 * control and array devices. 10038 */ 10039 if (is_fc == 0) 10040 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10041 SID_SPI_IUS; 10042 10043 /* SAM-3 */ 10044 scsi_ulto2b(0x0060, inq_ptr->version1); 10045 /* SPC-3 (no version claimed) XXX should we claim a version? */ 10046 scsi_ulto2b(0x0300, inq_ptr->version2); 10047 if (is_fc) { 10048 /* FCP-2 ANSI INCITS.350:2003 */ 10049 scsi_ulto2b(0x0917, inq_ptr->version3); 10050 } else { 10051 /* SPI-4 ANSI INCITS.362:200x */ 10052 scsi_ulto2b(0x0B56, inq_ptr->version3); 10053 } 10054 10055 if (lun == NULL) { 10056 /* SBC-2 (no version claimed) XXX should we claim a version? */ 10057 scsi_ulto2b(0x0320, inq_ptr->version4); 10058 } else { 10059 switch (lun->be_lun->lun_type) { 10060 case T_DIRECT: 10061 /* 10062 * SBC-2 (no version claimed) XXX should we claim a 10063 * version? 10064 */ 10065 scsi_ulto2b(0x0320, inq_ptr->version4); 10066 break; 10067 case T_PROCESSOR: 10068 default: 10069 break; 10070 } 10071 } 10072 10073 ctsio->scsi_status = SCSI_STATUS_OK; 10074 if (ctsio->kern_data_len > 0) { 10075 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10076 ctsio->be_move_done = ctl_config_move_done; 10077 ctl_datamove((union ctl_io *)ctsio); 10078 } else { 10079 ctsio->io_hdr.status = CTL_SUCCESS; 10080 ctl_done((union ctl_io *)ctsio); 10081 } 10082 10083 return (CTL_RETVAL_COMPLETE); 10084} 10085 10086int 10087ctl_inquiry(struct ctl_scsiio *ctsio) 10088{ 10089 struct scsi_inquiry *cdb; 10090 int retval; 10091 10092 cdb = (struct scsi_inquiry *)ctsio->cdb; 10093 10094 retval = 0; 10095 10096 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10097 10098 /* 10099 * Right now, we don't support the CmdDt inquiry information. 10100 * This would be nice to support in the future. When we do 10101 * support it, we should change this test so that it checks to make 10102 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10103 */ 10104#ifdef notyet 10105 if (((cdb->byte2 & SI_EVPD) 10106 && (cdb->byte2 & SI_CMDDT))) 10107#endif 10108 if (cdb->byte2 & SI_CMDDT) { 10109 /* 10110 * Point to the SI_CMDDT bit. We might change this 10111 * when we support SI_CMDDT, but since both bits would be 10112 * "wrong", this should probably just stay as-is then. 10113 */ 10114 ctl_set_invalid_field(ctsio, 10115 /*sks_valid*/ 1, 10116 /*command*/ 1, 10117 /*field*/ 1, 10118 /*bit_valid*/ 1, 10119 /*bit*/ 1); 10120 ctl_done((union ctl_io *)ctsio); 10121 return (CTL_RETVAL_COMPLETE); 10122 } 10123 if (cdb->byte2 & SI_EVPD) 10124 retval = ctl_inquiry_evpd(ctsio); 10125#ifdef notyet 10126 else if (cdb->byte2 & SI_CMDDT) 10127 retval = ctl_inquiry_cmddt(ctsio); 10128#endif 10129 else 10130 retval = ctl_inquiry_std(ctsio); 10131 10132 return (retval); 10133} 10134 10135/* 10136 * For known CDB types, parse the LBA and length. 10137 */ 10138static int 10139ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10140{ 10141 if (io->io_hdr.io_type != CTL_IO_SCSI) 10142 return (1); 10143 10144 switch (io->scsiio.cdb[0]) { 10145 case COMPARE_AND_WRITE: { 10146 struct scsi_compare_and_write *cdb; 10147 10148 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10149 10150 *lba = scsi_8btou64(cdb->addr); 10151 *len = cdb->length; 10152 break; 10153 } 10154 case READ_6: 10155 case WRITE_6: { 10156 struct scsi_rw_6 *cdb; 10157 10158 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10159 10160 *lba = scsi_3btoul(cdb->addr); 10161 /* only 5 bits are valid in the most significant address byte */ 10162 *lba &= 0x1fffff; 10163 *len = cdb->length; 10164 break; 10165 } 10166 case READ_10: 10167 case WRITE_10: { 10168 struct scsi_rw_10 *cdb; 10169 10170 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10171 10172 *lba = scsi_4btoul(cdb->addr); 10173 *len = scsi_2btoul(cdb->length); 10174 break; 10175 } 10176 case WRITE_VERIFY_10: { 10177 struct scsi_write_verify_10 *cdb; 10178 10179 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10180 10181 *lba = scsi_4btoul(cdb->addr); 10182 *len = scsi_2btoul(cdb->length); 10183 break; 10184 } 10185 case READ_12: 10186 case WRITE_12: { 10187 struct scsi_rw_12 *cdb; 10188 10189 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10190 10191 *lba = scsi_4btoul(cdb->addr); 10192 *len = scsi_4btoul(cdb->length); 10193 break; 10194 } 10195 case WRITE_VERIFY_12: { 10196 struct scsi_write_verify_12 *cdb; 10197 10198 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10199 10200 *lba = scsi_4btoul(cdb->addr); 10201 *len = scsi_4btoul(cdb->length); 10202 break; 10203 } 10204 case READ_16: 10205 case WRITE_16: { 10206 struct scsi_rw_16 *cdb; 10207 10208 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10209 10210 *lba = scsi_8btou64(cdb->addr); 10211 *len = scsi_4btoul(cdb->length); 10212 break; 10213 } 10214 case WRITE_VERIFY_16: { 10215 struct scsi_write_verify_16 *cdb; 10216 10217 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10218 10219 10220 *lba = scsi_8btou64(cdb->addr); 10221 *len = scsi_4btoul(cdb->length); 10222 break; 10223 } 10224 case WRITE_SAME_10: { 10225 struct scsi_write_same_10 *cdb; 10226 10227 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10228 10229 *lba = scsi_4btoul(cdb->addr); 10230 *len = scsi_2btoul(cdb->length); 10231 break; 10232 } 10233 case WRITE_SAME_16: { 10234 struct scsi_write_same_16 *cdb; 10235 10236 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10237 10238 *lba = scsi_8btou64(cdb->addr); 10239 *len = scsi_4btoul(cdb->length); 10240 break; 10241 } 10242 case VERIFY_10: { 10243 struct scsi_verify_10 *cdb; 10244 10245 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10246 10247 *lba = scsi_4btoul(cdb->addr); 10248 *len = scsi_2btoul(cdb->length); 10249 break; 10250 } 10251 case VERIFY_12: { 10252 struct scsi_verify_12 *cdb; 10253 10254 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10255 10256 *lba = scsi_4btoul(cdb->addr); 10257 *len = scsi_4btoul(cdb->length); 10258 break; 10259 } 10260 case VERIFY_16: { 10261 struct scsi_verify_16 *cdb; 10262 10263 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10264 10265 *lba = scsi_8btou64(cdb->addr); 10266 *len = scsi_4btoul(cdb->length); 10267 break; 10268 } 10269 default: 10270 return (1); 10271 break; /* NOTREACHED */ 10272 } 10273 10274 return (0); 10275} 10276 10277static ctl_action 10278ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10279{ 10280 uint64_t endlba1, endlba2; 10281 10282 endlba1 = lba1 + len1 - 1; 10283 endlba2 = lba2 + len2 - 1; 10284 10285 if ((endlba1 < lba2) 10286 || (endlba2 < lba1)) 10287 return (CTL_ACTION_PASS); 10288 else 10289 return (CTL_ACTION_BLOCK); 10290} 10291 10292static ctl_action 10293ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10294{ 10295 uint64_t lba1, lba2; 10296 uint32_t len1, len2; 10297 int retval; 10298 10299 retval = ctl_get_lba_len(io1, &lba1, &len1); 10300 if (retval != 0) 10301 return (CTL_ACTION_ERROR); 10302 10303 retval = ctl_get_lba_len(io2, &lba2, &len2); 10304 if (retval != 0) 10305 return (CTL_ACTION_ERROR); 10306 10307 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10308} 10309 10310static ctl_action 10311ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10312{ 10313 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10314 ctl_serialize_action *serialize_row; 10315 10316 /* 10317 * The initiator attempted multiple untagged commands at the same 10318 * time. Can't do that. 10319 */ 10320 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10321 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10322 && ((pending_io->io_hdr.nexus.targ_port == 10323 ooa_io->io_hdr.nexus.targ_port) 10324 && (pending_io->io_hdr.nexus.initid.id == 10325 ooa_io->io_hdr.nexus.initid.id)) 10326 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10327 return (CTL_ACTION_OVERLAP); 10328 10329 /* 10330 * The initiator attempted to send multiple tagged commands with 10331 * the same ID. (It's fine if different initiators have the same 10332 * tag ID.) 10333 * 10334 * Even if all of those conditions are true, we don't kill the I/O 10335 * if the command ahead of us has been aborted. We won't end up 10336 * sending it to the FETD, and it's perfectly legal to resend a 10337 * command with the same tag number as long as the previous 10338 * instance of this tag number has been aborted somehow. 10339 */ 10340 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10341 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10342 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10343 && ((pending_io->io_hdr.nexus.targ_port == 10344 ooa_io->io_hdr.nexus.targ_port) 10345 && (pending_io->io_hdr.nexus.initid.id == 10346 ooa_io->io_hdr.nexus.initid.id)) 10347 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10348 return (CTL_ACTION_OVERLAP_TAG); 10349 10350 /* 10351 * If we get a head of queue tag, SAM-3 says that we should 10352 * immediately execute it. 10353 * 10354 * What happens if this command would normally block for some other 10355 * reason? e.g. a request sense with a head of queue tag 10356 * immediately after a write. Normally that would block, but this 10357 * will result in its getting executed immediately... 10358 * 10359 * We currently return "pass" instead of "skip", so we'll end up 10360 * going through the rest of the queue to check for overlapped tags. 10361 * 10362 * XXX KDM check for other types of blockage first?? 10363 */ 10364 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10365 return (CTL_ACTION_PASS); 10366 10367 /* 10368 * Ordered tags have to block until all items ahead of them 10369 * have completed. If we get called with an ordered tag, we always 10370 * block, if something else is ahead of us in the queue. 10371 */ 10372 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10373 return (CTL_ACTION_BLOCK); 10374 10375 /* 10376 * Simple tags get blocked until all head of queue and ordered tags 10377 * ahead of them have completed. I'm lumping untagged commands in 10378 * with simple tags here. XXX KDM is that the right thing to do? 10379 */ 10380 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10381 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10382 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10383 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10384 return (CTL_ACTION_BLOCK); 10385 10386 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10387 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10388 10389 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10390 10391 switch (serialize_row[pending_entry->seridx]) { 10392 case CTL_SER_BLOCK: 10393 return (CTL_ACTION_BLOCK); 10394 break; /* NOTREACHED */ 10395 case CTL_SER_EXTENT: 10396 return (ctl_extent_check(pending_io, ooa_io)); 10397 break; /* NOTREACHED */ 10398 case CTL_SER_PASS: 10399 return (CTL_ACTION_PASS); 10400 break; /* NOTREACHED */ 10401 case CTL_SER_SKIP: 10402 return (CTL_ACTION_SKIP); 10403 break; 10404 default: 10405 panic("invalid serialization value %d", 10406 serialize_row[pending_entry->seridx]); 10407 break; /* NOTREACHED */ 10408 } 10409 10410 return (CTL_ACTION_ERROR); 10411} 10412 10413/* 10414 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10415 * Assumptions: 10416 * - pending_io is generally either incoming, or on the blocked queue 10417 * - starting I/O is the I/O we want to start the check with. 10418 */ 10419static ctl_action 10420ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10421 union ctl_io *starting_io) 10422{ 10423 union ctl_io *ooa_io; 10424 ctl_action action; 10425 10426 mtx_assert(&lun->lun_lock, MA_OWNED); 10427 10428 /* 10429 * Run back along the OOA queue, starting with the current 10430 * blocked I/O and going through every I/O before it on the 10431 * queue. If starting_io is NULL, we'll just end up returning 10432 * CTL_ACTION_PASS. 10433 */ 10434 for (ooa_io = starting_io; ooa_io != NULL; 10435 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10436 ooa_links)){ 10437 10438 /* 10439 * This routine just checks to see whether 10440 * cur_blocked is blocked by ooa_io, which is ahead 10441 * of it in the queue. It doesn't queue/dequeue 10442 * cur_blocked. 10443 */ 10444 action = ctl_check_for_blockage(pending_io, ooa_io); 10445 switch (action) { 10446 case CTL_ACTION_BLOCK: 10447 case CTL_ACTION_OVERLAP: 10448 case CTL_ACTION_OVERLAP_TAG: 10449 case CTL_ACTION_SKIP: 10450 case CTL_ACTION_ERROR: 10451 return (action); 10452 break; /* NOTREACHED */ 10453 case CTL_ACTION_PASS: 10454 break; 10455 default: 10456 panic("invalid action %d", action); 10457 break; /* NOTREACHED */ 10458 } 10459 } 10460 10461 return (CTL_ACTION_PASS); 10462} 10463 10464/* 10465 * Assumptions: 10466 * - An I/O has just completed, and has been removed from the per-LUN OOA 10467 * queue, so some items on the blocked queue may now be unblocked. 10468 */ 10469static int 10470ctl_check_blocked(struct ctl_lun *lun) 10471{ 10472 union ctl_io *cur_blocked, *next_blocked; 10473 10474 mtx_assert(&lun->lun_lock, MA_OWNED); 10475 10476 /* 10477 * Run forward from the head of the blocked queue, checking each 10478 * entry against the I/Os prior to it on the OOA queue to see if 10479 * there is still any blockage. 10480 * 10481 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10482 * with our removing a variable on it while it is traversing the 10483 * list. 10484 */ 10485 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10486 cur_blocked != NULL; cur_blocked = next_blocked) { 10487 union ctl_io *prev_ooa; 10488 ctl_action action; 10489 10490 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10491 blocked_links); 10492 10493 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10494 ctl_ooaq, ooa_links); 10495 10496 /* 10497 * If cur_blocked happens to be the first item in the OOA 10498 * queue now, prev_ooa will be NULL, and the action 10499 * returned will just be CTL_ACTION_PASS. 10500 */ 10501 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10502 10503 switch (action) { 10504 case CTL_ACTION_BLOCK: 10505 /* Nothing to do here, still blocked */ 10506 break; 10507 case CTL_ACTION_OVERLAP: 10508 case CTL_ACTION_OVERLAP_TAG: 10509 /* 10510 * This shouldn't happen! In theory we've already 10511 * checked this command for overlap... 10512 */ 10513 break; 10514 case CTL_ACTION_PASS: 10515 case CTL_ACTION_SKIP: { 10516 struct ctl_softc *softc; 10517 const struct ctl_cmd_entry *entry; 10518 uint32_t initidx; 10519 int isc_retval; 10520 10521 /* 10522 * The skip case shouldn't happen, this transaction 10523 * should have never made it onto the blocked queue. 10524 */ 10525 /* 10526 * This I/O is no longer blocked, we can remove it 10527 * from the blocked queue. Since this is a TAILQ 10528 * (doubly linked list), we can do O(1) removals 10529 * from any place on the list. 10530 */ 10531 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10532 blocked_links); 10533 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10534 10535 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10536 /* 10537 * Need to send IO back to original side to 10538 * run 10539 */ 10540 union ctl_ha_msg msg_info; 10541 10542 msg_info.hdr.original_sc = 10543 cur_blocked->io_hdr.original_sc; 10544 msg_info.hdr.serializing_sc = cur_blocked; 10545 msg_info.hdr.msg_type = CTL_MSG_R2R; 10546 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10547 &msg_info, sizeof(msg_info), 0)) > 10548 CTL_HA_STATUS_SUCCESS) { 10549 printf("CTL:Check Blocked error from " 10550 "ctl_ha_msg_send %d\n", 10551 isc_retval); 10552 } 10553 break; 10554 } 10555 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 10556 softc = control_softc; 10557 10558 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 10559 10560 /* 10561 * Check this I/O for LUN state changes that may 10562 * have happened while this command was blocked. 10563 * The LUN state may have been changed by a command 10564 * ahead of us in the queue, so we need to re-check 10565 * for any states that can be caused by SCSI 10566 * commands. 10567 */ 10568 if (ctl_scsiio_lun_check(softc, lun, entry, 10569 &cur_blocked->scsiio) == 0) { 10570 cur_blocked->io_hdr.flags |= 10571 CTL_FLAG_IS_WAS_ON_RTR; 10572 ctl_enqueue_rtr(cur_blocked); 10573 } else 10574 ctl_done(cur_blocked); 10575 break; 10576 } 10577 default: 10578 /* 10579 * This probably shouldn't happen -- we shouldn't 10580 * get CTL_ACTION_ERROR, or anything else. 10581 */ 10582 break; 10583 } 10584 } 10585 10586 return (CTL_RETVAL_COMPLETE); 10587} 10588 10589/* 10590 * This routine (with one exception) checks LUN flags that can be set by 10591 * commands ahead of us in the OOA queue. These flags have to be checked 10592 * when a command initially comes in, and when we pull a command off the 10593 * blocked queue and are preparing to execute it. The reason we have to 10594 * check these flags for commands on the blocked queue is that the LUN 10595 * state may have been changed by a command ahead of us while we're on the 10596 * blocked queue. 10597 * 10598 * Ordering is somewhat important with these checks, so please pay 10599 * careful attention to the placement of any new checks. 10600 */ 10601static int 10602ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 10603 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 10604{ 10605 int retval; 10606 10607 retval = 0; 10608 10609 mtx_assert(&lun->lun_lock, MA_OWNED); 10610 10611 /* 10612 * If this shelf is a secondary shelf controller, we have to reject 10613 * any media access commands. 10614 */ 10615#if 0 10616 /* No longer needed for HA */ 10617 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 10618 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 10619 ctl_set_lun_standby(ctsio); 10620 retval = 1; 10621 goto bailout; 10622 } 10623#endif 10624 10625 /* 10626 * Check for a reservation conflict. If this command isn't allowed 10627 * even on reserved LUNs, and if this initiator isn't the one who 10628 * reserved us, reject the command with a reservation conflict. 10629 */ 10630 if ((lun->flags & CTL_LUN_RESERVED) 10631 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 10632 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 10633 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 10634 || (ctsio->io_hdr.nexus.targ_target.id != 10635 lun->rsv_nexus.targ_target.id)) { 10636 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 10637 ctsio->io_hdr.status = CTL_SCSI_ERROR; 10638 retval = 1; 10639 goto bailout; 10640 } 10641 } 10642 10643 if ( (lun->flags & CTL_LUN_PR_RESERVED) 10644 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 10645 uint32_t residx; 10646 10647 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 10648 /* 10649 * if we aren't registered or it's a res holder type 10650 * reservation and this isn't the res holder then set a 10651 * conflict. 10652 * NOTE: Commands which might be allowed on write exclusive 10653 * type reservations are checked in the particular command 10654 * for a conflict. Read and SSU are the only ones. 10655 */ 10656 if (!lun->per_res[residx].registered 10657 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 10658 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 10659 ctsio->io_hdr.status = CTL_SCSI_ERROR; 10660 retval = 1; 10661 goto bailout; 10662 } 10663 10664 } 10665 10666 if ((lun->flags & CTL_LUN_OFFLINE) 10667 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 10668 ctl_set_lun_not_ready(ctsio); 10669 retval = 1; 10670 goto bailout; 10671 } 10672 10673 /* 10674 * If the LUN is stopped, see if this particular command is allowed 10675 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 10676 */ 10677 if ((lun->flags & CTL_LUN_STOPPED) 10678 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 10679 /* "Logical unit not ready, initializing cmd. required" */ 10680 ctl_set_lun_stopped(ctsio); 10681 retval = 1; 10682 goto bailout; 10683 } 10684 10685 if ((lun->flags & CTL_LUN_INOPERABLE) 10686 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 10687 /* "Medium format corrupted" */ 10688 ctl_set_medium_format_corrupted(ctsio); 10689 retval = 1; 10690 goto bailout; 10691 } 10692 10693bailout: 10694 return (retval); 10695 10696} 10697 10698static void 10699ctl_failover_io(union ctl_io *io, int have_lock) 10700{ 10701 ctl_set_busy(&io->scsiio); 10702 ctl_done(io); 10703} 10704 10705static void 10706ctl_failover(void) 10707{ 10708 struct ctl_lun *lun; 10709 struct ctl_softc *ctl_softc; 10710 union ctl_io *next_io, *pending_io; 10711 union ctl_io *io; 10712 int lun_idx; 10713 int i; 10714 10715 ctl_softc = control_softc; 10716 10717 mtx_lock(&ctl_softc->ctl_lock); 10718 /* 10719 * Remove any cmds from the other SC from the rtr queue. These 10720 * will obviously only be for LUNs for which we're the primary. 10721 * We can't send status or get/send data for these commands. 10722 * Since they haven't been executed yet, we can just remove them. 10723 * We'll either abort them or delete them below, depending on 10724 * which HA mode we're in. 10725 */ 10726#ifdef notyet 10727 mtx_lock(&ctl_softc->queue_lock); 10728 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 10729 io != NULL; io = next_io) { 10730 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 10731 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 10732 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 10733 ctl_io_hdr, links); 10734 } 10735 mtx_unlock(&ctl_softc->queue_lock); 10736#endif 10737 10738 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 10739 lun = ctl_softc->ctl_luns[lun_idx]; 10740 if (lun==NULL) 10741 continue; 10742 10743 /* 10744 * Processor LUNs are primary on both sides. 10745 * XXX will this always be true? 10746 */ 10747 if (lun->be_lun->lun_type == T_PROCESSOR) 10748 continue; 10749 10750 if ((lun->flags & CTL_LUN_PRIMARY_SC) 10751 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 10752 printf("FAILOVER: primary lun %d\n", lun_idx); 10753 /* 10754 * Remove all commands from the other SC. First from the 10755 * blocked queue then from the ooa queue. Once we have 10756 * removed them. Call ctl_check_blocked to see if there 10757 * is anything that can run. 10758 */ 10759 for (io = (union ctl_io *)TAILQ_FIRST( 10760 &lun->blocked_queue); io != NULL; io = next_io) { 10761 10762 next_io = (union ctl_io *)TAILQ_NEXT( 10763 &io->io_hdr, blocked_links); 10764 10765 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 10766 TAILQ_REMOVE(&lun->blocked_queue, 10767 &io->io_hdr,blocked_links); 10768 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10769 TAILQ_REMOVE(&lun->ooa_queue, 10770 &io->io_hdr, ooa_links); 10771 10772 ctl_free_io(io); 10773 } 10774 } 10775 10776 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 10777 io != NULL; io = next_io) { 10778 10779 next_io = (union ctl_io *)TAILQ_NEXT( 10780 &io->io_hdr, ooa_links); 10781 10782 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 10783 10784 TAILQ_REMOVE(&lun->ooa_queue, 10785 &io->io_hdr, 10786 ooa_links); 10787 10788 ctl_free_io(io); 10789 } 10790 } 10791 ctl_check_blocked(lun); 10792 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 10793 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 10794 10795 printf("FAILOVER: primary lun %d\n", lun_idx); 10796 /* 10797 * Abort all commands from the other SC. We can't 10798 * send status back for them now. These should get 10799 * cleaned up when they are completed or come out 10800 * for a datamove operation. 10801 */ 10802 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 10803 io != NULL; io = next_io) { 10804 next_io = (union ctl_io *)TAILQ_NEXT( 10805 &io->io_hdr, ooa_links); 10806 10807 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 10808 io->io_hdr.flags |= CTL_FLAG_ABORT; 10809 } 10810 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 10811 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 10812 10813 printf("FAILOVER: secondary lun %d\n", lun_idx); 10814 10815 lun->flags |= CTL_LUN_PRIMARY_SC; 10816 10817 /* 10818 * We send all I/O that was sent to this controller 10819 * and redirected to the other side back with 10820 * busy status, and have the initiator retry it. 10821 * Figuring out how much data has been transferred, 10822 * etc. and picking up where we left off would be 10823 * very tricky. 10824 * 10825 * XXX KDM need to remove I/O from the blocked 10826 * queue as well! 10827 */ 10828 for (pending_io = (union ctl_io *)TAILQ_FIRST( 10829 &lun->ooa_queue); pending_io != NULL; 10830 pending_io = next_io) { 10831 10832 next_io = (union ctl_io *)TAILQ_NEXT( 10833 &pending_io->io_hdr, ooa_links); 10834 10835 pending_io->io_hdr.flags &= 10836 ~CTL_FLAG_SENT_2OTHER_SC; 10837 10838 if (pending_io->io_hdr.flags & 10839 CTL_FLAG_IO_ACTIVE) { 10840 pending_io->io_hdr.flags |= 10841 CTL_FLAG_FAILOVER; 10842 } else { 10843 ctl_set_busy(&pending_io->scsiio); 10844 ctl_done(pending_io); 10845 } 10846 } 10847 10848 /* 10849 * Build Unit Attention 10850 */ 10851 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 10852 lun->pending_sense[i].ua_pending |= 10853 CTL_UA_ASYM_ACC_CHANGE; 10854 } 10855 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 10856 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 10857 printf("FAILOVER: secondary lun %d\n", lun_idx); 10858 /* 10859 * if the first io on the OOA is not on the RtR queue 10860 * add it. 10861 */ 10862 lun->flags |= CTL_LUN_PRIMARY_SC; 10863 10864 pending_io = (union ctl_io *)TAILQ_FIRST( 10865 &lun->ooa_queue); 10866 if (pending_io==NULL) { 10867 printf("Nothing on OOA queue\n"); 10868 continue; 10869 } 10870 10871 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 10872 if ((pending_io->io_hdr.flags & 10873 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 10874 pending_io->io_hdr.flags |= 10875 CTL_FLAG_IS_WAS_ON_RTR; 10876 ctl_enqueue_rtr(pending_io); 10877 } 10878#if 0 10879 else 10880 { 10881 printf("Tag 0x%04x is running\n", 10882 pending_io->scsiio.tag_num); 10883 } 10884#endif 10885 10886 next_io = (union ctl_io *)TAILQ_NEXT( 10887 &pending_io->io_hdr, ooa_links); 10888 for (pending_io=next_io; pending_io != NULL; 10889 pending_io = next_io) { 10890 pending_io->io_hdr.flags &= 10891 ~CTL_FLAG_SENT_2OTHER_SC; 10892 next_io = (union ctl_io *)TAILQ_NEXT( 10893 &pending_io->io_hdr, ooa_links); 10894 if (pending_io->io_hdr.flags & 10895 CTL_FLAG_IS_WAS_ON_RTR) { 10896#if 0 10897 printf("Tag 0x%04x is running\n", 10898 pending_io->scsiio.tag_num); 10899#endif 10900 continue; 10901 } 10902 10903 switch (ctl_check_ooa(lun, pending_io, 10904 (union ctl_io *)TAILQ_PREV( 10905 &pending_io->io_hdr, ctl_ooaq, 10906 ooa_links))) { 10907 10908 case CTL_ACTION_BLOCK: 10909 TAILQ_INSERT_TAIL(&lun->blocked_queue, 10910 &pending_io->io_hdr, 10911 blocked_links); 10912 pending_io->io_hdr.flags |= 10913 CTL_FLAG_BLOCKED; 10914 break; 10915 case CTL_ACTION_PASS: 10916 case CTL_ACTION_SKIP: 10917 pending_io->io_hdr.flags |= 10918 CTL_FLAG_IS_WAS_ON_RTR; 10919 ctl_enqueue_rtr(pending_io); 10920 break; 10921 case CTL_ACTION_OVERLAP: 10922 ctl_set_overlapped_cmd( 10923 (struct ctl_scsiio *)pending_io); 10924 ctl_done(pending_io); 10925 break; 10926 case CTL_ACTION_OVERLAP_TAG: 10927 ctl_set_overlapped_tag( 10928 (struct ctl_scsiio *)pending_io, 10929 pending_io->scsiio.tag_num & 0xff); 10930 ctl_done(pending_io); 10931 break; 10932 case CTL_ACTION_ERROR: 10933 default: 10934 ctl_set_internal_failure( 10935 (struct ctl_scsiio *)pending_io, 10936 0, // sks_valid 10937 0); //retry count 10938 ctl_done(pending_io); 10939 break; 10940 } 10941 } 10942 10943 /* 10944 * Build Unit Attention 10945 */ 10946 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 10947 lun->pending_sense[i].ua_pending |= 10948 CTL_UA_ASYM_ACC_CHANGE; 10949 } 10950 } else { 10951 panic("Unhandled HA mode failover, LUN flags = %#x, " 10952 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 10953 } 10954 } 10955 ctl_pause_rtr = 0; 10956 mtx_unlock(&ctl_softc->ctl_lock); 10957} 10958 10959static int 10960ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 10961{ 10962 struct ctl_lun *lun; 10963 const struct ctl_cmd_entry *entry; 10964 uint32_t initidx, targ_lun; 10965 int retval; 10966 10967 retval = 0; 10968 10969 lun = NULL; 10970 10971 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 10972 if ((targ_lun < CTL_MAX_LUNS) 10973 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 10974 lun = ctl_softc->ctl_luns[targ_lun]; 10975 /* 10976 * If the LUN is invalid, pretend that it doesn't exist. 10977 * It will go away as soon as all pending I/O has been 10978 * completed. 10979 */ 10980 if (lun->flags & CTL_LUN_DISABLED) { 10981 lun = NULL; 10982 } else { 10983 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 10984 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 10985 lun->be_lun; 10986 if (lun->be_lun->lun_type == T_PROCESSOR) { 10987 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 10988 } 10989 10990 /* 10991 * Every I/O goes into the OOA queue for a 10992 * particular LUN, and stays there until completion. 10993 */ 10994 mtx_lock(&lun->lun_lock); 10995 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 10996 ooa_links); 10997 } 10998 } else { 10999 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11000 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11001 } 11002 11003 /* Get command entry and return error if it is unsuppotyed. */ 11004 entry = ctl_validate_command(ctsio); 11005 if (entry == NULL) { 11006 if (lun) 11007 mtx_unlock(&lun->lun_lock); 11008 return (retval); 11009 } 11010 11011 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11012 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11013 11014 /* 11015 * Check to see whether we can send this command to LUNs that don't 11016 * exist. This should pretty much only be the case for inquiry 11017 * and request sense. Further checks, below, really require having 11018 * a LUN, so we can't really check the command anymore. Just put 11019 * it on the rtr queue. 11020 */ 11021 if (lun == NULL) { 11022 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11023 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11024 ctl_enqueue_rtr((union ctl_io *)ctsio); 11025 return (retval); 11026 } 11027 11028 ctl_set_unsupported_lun(ctsio); 11029 ctl_done((union ctl_io *)ctsio); 11030 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11031 return (retval); 11032 } else { 11033 /* 11034 * Make sure we support this particular command on this LUN. 11035 * e.g., we don't support writes to the control LUN. 11036 */ 11037 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11038 mtx_unlock(&lun->lun_lock); 11039 ctl_set_invalid_opcode(ctsio); 11040 ctl_done((union ctl_io *)ctsio); 11041 return (retval); 11042 } 11043 } 11044 11045 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11046 11047 /* 11048 * If we've got a request sense, it'll clear the contingent 11049 * allegiance condition. Otherwise, if we have a CA condition for 11050 * this initiator, clear it, because it sent down a command other 11051 * than request sense. 11052 */ 11053 if ((ctsio->cdb[0] != REQUEST_SENSE) 11054 && (ctl_is_set(lun->have_ca, initidx))) 11055 ctl_clear_mask(lun->have_ca, initidx); 11056 11057 /* 11058 * If the command has this flag set, it handles its own unit 11059 * attention reporting, we shouldn't do anything. Otherwise we 11060 * check for any pending unit attentions, and send them back to the 11061 * initiator. We only do this when a command initially comes in, 11062 * not when we pull it off the blocked queue. 11063 * 11064 * According to SAM-3, section 5.3.2, the order that things get 11065 * presented back to the host is basically unit attentions caused 11066 * by some sort of reset event, busy status, reservation conflicts 11067 * or task set full, and finally any other status. 11068 * 11069 * One issue here is that some of the unit attentions we report 11070 * don't fall into the "reset" category (e.g. "reported luns data 11071 * has changed"). So reporting it here, before the reservation 11072 * check, may be technically wrong. I guess the only thing to do 11073 * would be to check for and report the reset events here, and then 11074 * check for the other unit attention types after we check for a 11075 * reservation conflict. 11076 * 11077 * XXX KDM need to fix this 11078 */ 11079 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11080 ctl_ua_type ua_type; 11081 11082 ua_type = lun->pending_sense[initidx].ua_pending; 11083 if (ua_type != CTL_UA_NONE) { 11084 scsi_sense_data_type sense_format; 11085 11086 if (lun != NULL) 11087 sense_format = (lun->flags & 11088 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11089 SSD_TYPE_FIXED; 11090 else 11091 sense_format = SSD_TYPE_FIXED; 11092 11093 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11094 sense_format); 11095 if (ua_type != CTL_UA_NONE) { 11096 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11097 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11098 CTL_AUTOSENSE; 11099 ctsio->sense_len = SSD_FULL_SIZE; 11100 lun->pending_sense[initidx].ua_pending &= 11101 ~ua_type; 11102 mtx_unlock(&lun->lun_lock); 11103 ctl_done((union ctl_io *)ctsio); 11104 return (retval); 11105 } 11106 } 11107 } 11108 11109 11110 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11111 mtx_unlock(&lun->lun_lock); 11112 ctl_done((union ctl_io *)ctsio); 11113 return (retval); 11114 } 11115 11116 /* 11117 * XXX CHD this is where we want to send IO to other side if 11118 * this LUN is secondary on this SC. We will need to make a copy 11119 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11120 * the copy we send as FROM_OTHER. 11121 * We also need to stuff the address of the original IO so we can 11122 * find it easily. Something similar will need be done on the other 11123 * side so when we are done we can find the copy. 11124 */ 11125 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11126 union ctl_ha_msg msg_info; 11127 int isc_retval; 11128 11129 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11130 11131 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11132 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11133#if 0 11134 printf("1. ctsio %p\n", ctsio); 11135#endif 11136 msg_info.hdr.serializing_sc = NULL; 11137 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11138 msg_info.scsi.tag_num = ctsio->tag_num; 11139 msg_info.scsi.tag_type = ctsio->tag_type; 11140 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11141 11142 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11143 11144 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11145 (void *)&msg_info, sizeof(msg_info), 0)) > 11146 CTL_HA_STATUS_SUCCESS) { 11147 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11148 isc_retval); 11149 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11150 } else { 11151#if 0 11152 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11153#endif 11154 } 11155 11156 /* 11157 * XXX KDM this I/O is off the incoming queue, but hasn't 11158 * been inserted on any other queue. We may need to come 11159 * up with a holding queue while we wait for serialization 11160 * so that we have an idea of what we're waiting for from 11161 * the other side. 11162 */ 11163 mtx_unlock(&lun->lun_lock); 11164 return (retval); 11165 } 11166 11167 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11168 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11169 ctl_ooaq, ooa_links))) { 11170 case CTL_ACTION_BLOCK: 11171 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11172 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11173 blocked_links); 11174 mtx_unlock(&lun->lun_lock); 11175 return (retval); 11176 case CTL_ACTION_PASS: 11177 case CTL_ACTION_SKIP: 11178 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11179 mtx_unlock(&lun->lun_lock); 11180 ctl_enqueue_rtr((union ctl_io *)ctsio); 11181 break; 11182 case CTL_ACTION_OVERLAP: 11183 mtx_unlock(&lun->lun_lock); 11184 ctl_set_overlapped_cmd(ctsio); 11185 ctl_done((union ctl_io *)ctsio); 11186 break; 11187 case CTL_ACTION_OVERLAP_TAG: 11188 mtx_unlock(&lun->lun_lock); 11189 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11190 ctl_done((union ctl_io *)ctsio); 11191 break; 11192 case CTL_ACTION_ERROR: 11193 default: 11194 mtx_unlock(&lun->lun_lock); 11195 ctl_set_internal_failure(ctsio, 11196 /*sks_valid*/ 0, 11197 /*retry_count*/ 0); 11198 ctl_done((union ctl_io *)ctsio); 11199 break; 11200 } 11201 return (retval); 11202} 11203 11204const struct ctl_cmd_entry * 11205ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11206{ 11207 const struct ctl_cmd_entry *entry; 11208 int service_action; 11209 11210 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11211 if (entry->flags & CTL_CMD_FLAG_SA5) { 11212 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11213 entry = &((const struct ctl_cmd_entry *) 11214 entry->execute)[service_action]; 11215 } 11216 return (entry); 11217} 11218 11219const struct ctl_cmd_entry * 11220ctl_validate_command(struct ctl_scsiio *ctsio) 11221{ 11222 const struct ctl_cmd_entry *entry; 11223 int i; 11224 uint8_t diff; 11225 11226 entry = ctl_get_cmd_entry(ctsio); 11227 if (entry->execute == NULL) { 11228 ctl_set_invalid_opcode(ctsio); 11229 ctl_done((union ctl_io *)ctsio); 11230 return (NULL); 11231 } 11232 KASSERT(entry->length > 0, 11233 ("Not defined length for command 0x%02x/0x%02x", 11234 ctsio->cdb[0], ctsio->cdb[1])); 11235 for (i = 1; i < entry->length; i++) { 11236 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11237 if (diff == 0) 11238 continue; 11239 ctl_set_invalid_field(ctsio, 11240 /*sks_valid*/ 1, 11241 /*command*/ 1, 11242 /*field*/ i, 11243 /*bit_valid*/ 1, 11244 /*bit*/ fls(diff) - 1); 11245 ctl_done((union ctl_io *)ctsio); 11246 return (NULL); 11247 } 11248 return (entry); 11249} 11250 11251static int 11252ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11253{ 11254 11255 switch (lun_type) { 11256 case T_PROCESSOR: 11257 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11258 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11259 return (0); 11260 break; 11261 case T_DIRECT: 11262 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11263 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11264 return (0); 11265 break; 11266 default: 11267 return (0); 11268 } 11269 return (1); 11270} 11271 11272static int 11273ctl_scsiio(struct ctl_scsiio *ctsio) 11274{ 11275 int retval; 11276 const struct ctl_cmd_entry *entry; 11277 11278 retval = CTL_RETVAL_COMPLETE; 11279 11280 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11281 11282 entry = ctl_get_cmd_entry(ctsio); 11283 11284 /* 11285 * If this I/O has been aborted, just send it straight to 11286 * ctl_done() without executing it. 11287 */ 11288 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11289 ctl_done((union ctl_io *)ctsio); 11290 goto bailout; 11291 } 11292 11293 /* 11294 * All the checks should have been handled by ctl_scsiio_precheck(). 11295 * We should be clear now to just execute the I/O. 11296 */ 11297 retval = entry->execute(ctsio); 11298 11299bailout: 11300 return (retval); 11301} 11302 11303/* 11304 * Since we only implement one target right now, a bus reset simply resets 11305 * our single target. 11306 */ 11307static int 11308ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11309{ 11310 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11311} 11312 11313static int 11314ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11315 ctl_ua_type ua_type) 11316{ 11317 struct ctl_lun *lun; 11318 int retval; 11319 11320 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11321 union ctl_ha_msg msg_info; 11322 11323 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11324 msg_info.hdr.nexus = io->io_hdr.nexus; 11325 if (ua_type==CTL_UA_TARG_RESET) 11326 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11327 else 11328 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11329 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11330 msg_info.hdr.original_sc = NULL; 11331 msg_info.hdr.serializing_sc = NULL; 11332 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11333 (void *)&msg_info, sizeof(msg_info), 0)) { 11334 } 11335 } 11336 retval = 0; 11337 11338 mtx_lock(&ctl_softc->ctl_lock); 11339 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11340 retval += ctl_lun_reset(lun, io, ua_type); 11341 mtx_unlock(&ctl_softc->ctl_lock); 11342 11343 return (retval); 11344} 11345 11346/* 11347 * The LUN should always be set. The I/O is optional, and is used to 11348 * distinguish between I/Os sent by this initiator, and by other 11349 * initiators. We set unit attention for initiators other than this one. 11350 * SAM-3 is vague on this point. It does say that a unit attention should 11351 * be established for other initiators when a LUN is reset (see section 11352 * 5.7.3), but it doesn't specifically say that the unit attention should 11353 * be established for this particular initiator when a LUN is reset. Here 11354 * is the relevant text, from SAM-3 rev 8: 11355 * 11356 * 5.7.2 When a SCSI initiator port aborts its own tasks 11357 * 11358 * When a SCSI initiator port causes its own task(s) to be aborted, no 11359 * notification that the task(s) have been aborted shall be returned to 11360 * the SCSI initiator port other than the completion response for the 11361 * command or task management function action that caused the task(s) to 11362 * be aborted and notification(s) associated with related effects of the 11363 * action (e.g., a reset unit attention condition). 11364 * 11365 * XXX KDM for now, we're setting unit attention for all initiators. 11366 */ 11367static int 11368ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11369{ 11370 union ctl_io *xio; 11371#if 0 11372 uint32_t initindex; 11373#endif 11374 int i; 11375 11376 mtx_lock(&lun->lun_lock); 11377 /* 11378 * Run through the OOA queue and abort each I/O. 11379 */ 11380#if 0 11381 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11382#endif 11383 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11384 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11385 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11386 } 11387 11388 /* 11389 * This version sets unit attention for every 11390 */ 11391#if 0 11392 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11393 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11394 if (initindex == i) 11395 continue; 11396 lun->pending_sense[i].ua_pending |= ua_type; 11397 } 11398#endif 11399 11400 /* 11401 * A reset (any kind, really) clears reservations established with 11402 * RESERVE/RELEASE. It does not clear reservations established 11403 * with PERSISTENT RESERVE OUT, but we don't support that at the 11404 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11405 * reservations made with the RESERVE/RELEASE commands, because 11406 * those commands are obsolete in SPC-3. 11407 */ 11408 lun->flags &= ~CTL_LUN_RESERVED; 11409 11410 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11411 ctl_clear_mask(lun->have_ca, i); 11412 lun->pending_sense[i].ua_pending |= ua_type; 11413 } 11414 mtx_lock(&lun->lun_lock); 11415 11416 return (0); 11417} 11418 11419static int 11420ctl_abort_task(union ctl_io *io) 11421{ 11422 union ctl_io *xio; 11423 struct ctl_lun *lun; 11424 struct ctl_softc *ctl_softc; 11425#if 0 11426 struct sbuf sb; 11427 char printbuf[128]; 11428#endif 11429 int found; 11430 uint32_t targ_lun; 11431 11432 ctl_softc = control_softc; 11433 found = 0; 11434 11435 /* 11436 * Look up the LUN. 11437 */ 11438 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11439 mtx_lock(&ctl_softc->ctl_lock); 11440 if ((targ_lun < CTL_MAX_LUNS) 11441 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11442 lun = ctl_softc->ctl_luns[targ_lun]; 11443 else { 11444 mtx_unlock(&ctl_softc->ctl_lock); 11445 goto bailout; 11446 } 11447 11448#if 0 11449 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11450 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11451#endif 11452 11453 mtx_lock(&lun->lun_lock); 11454 mtx_unlock(&ctl_softc->ctl_lock); 11455 /* 11456 * Run through the OOA queue and attempt to find the given I/O. 11457 * The target port, initiator ID, tag type and tag number have to 11458 * match the values that we got from the initiator. If we have an 11459 * untagged command to abort, simply abort the first untagged command 11460 * we come to. We only allow one untagged command at a time of course. 11461 */ 11462#if 0 11463 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11464#endif 11465 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11466 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11467#if 0 11468 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11469 11470 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11471 lun->lun, xio->scsiio.tag_num, 11472 xio->scsiio.tag_type, 11473 (xio->io_hdr.blocked_links.tqe_prev 11474 == NULL) ? "" : " BLOCKED", 11475 (xio->io_hdr.flags & 11476 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11477 (xio->io_hdr.flags & 11478 CTL_FLAG_ABORT) ? " ABORT" : "", 11479 (xio->io_hdr.flags & 11480 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11481 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11482 sbuf_finish(&sb); 11483 printf("%s\n", sbuf_data(&sb)); 11484#endif 11485 11486 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 11487 && (xio->io_hdr.nexus.initid.id == 11488 io->io_hdr.nexus.initid.id)) { 11489 /* 11490 * If the abort says that the task is untagged, the 11491 * task in the queue must be untagged. Otherwise, 11492 * we just check to see whether the tag numbers 11493 * match. This is because the QLogic firmware 11494 * doesn't pass back the tag type in an abort 11495 * request. 11496 */ 11497#if 0 11498 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11499 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11500 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 11501#endif 11502 /* 11503 * XXX KDM we've got problems with FC, because it 11504 * doesn't send down a tag type with aborts. So we 11505 * can only really go by the tag number... 11506 * This may cause problems with parallel SCSI. 11507 * Need to figure that out!! 11508 */ 11509 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11510 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11511 found = 1; 11512 if ((io->io_hdr.flags & 11513 CTL_FLAG_FROM_OTHER_SC) == 0 && 11514 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11515 union ctl_ha_msg msg_info; 11516 11517 io->io_hdr.flags |= 11518 CTL_FLAG_SENT_2OTHER_SC; 11519 msg_info.hdr.nexus = io->io_hdr.nexus; 11520 msg_info.task.task_action = 11521 CTL_TASK_ABORT_TASK; 11522 msg_info.task.tag_num = 11523 io->taskio.tag_num; 11524 msg_info.task.tag_type = 11525 io->taskio.tag_type; 11526 msg_info.hdr.msg_type = 11527 CTL_MSG_MANAGE_TASKS; 11528 msg_info.hdr.original_sc = NULL; 11529 msg_info.hdr.serializing_sc = NULL; 11530#if 0 11531 printf("Sent Abort to other side\n"); 11532#endif 11533 if (CTL_HA_STATUS_SUCCESS != 11534 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11535 (void *)&msg_info, 11536 sizeof(msg_info), 0)) { 11537 } 11538 } 11539#if 0 11540 printf("ctl_abort_task: found I/O to abort\n"); 11541#endif 11542 break; 11543 } 11544 } 11545 } 11546 mtx_unlock(&lun->lun_lock); 11547 11548bailout: 11549 11550 if (found == 0) { 11551 /* 11552 * This isn't really an error. It's entirely possible for 11553 * the abort and command completion to cross on the wire. 11554 * This is more of an informative/diagnostic error. 11555 */ 11556#if 0 11557 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 11558 "%d:%d:%d:%d tag %d type %d\n", 11559 io->io_hdr.nexus.initid.id, 11560 io->io_hdr.nexus.targ_port, 11561 io->io_hdr.nexus.targ_target.id, 11562 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 11563 io->taskio.tag_type); 11564#endif 11565 return (1); 11566 } else 11567 return (0); 11568} 11569 11570/* 11571 * This routine cannot block! It must be callable from an interrupt 11572 * handler as well as from the work thread. 11573 */ 11574static void 11575ctl_run_task(union ctl_io *io) 11576{ 11577 struct ctl_softc *ctl_softc; 11578 int retval; 11579 const char *task_desc; 11580 11581 CTL_DEBUG_PRINT(("ctl_run_task\n")); 11582 11583 ctl_softc = control_softc; 11584 retval = 0; 11585 11586 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 11587 ("ctl_run_task: Unextected io_type %d\n", 11588 io->io_hdr.io_type)); 11589 11590 task_desc = ctl_scsi_task_string(&io->taskio); 11591 if (task_desc != NULL) { 11592#ifdef NEEDTOPORT 11593 csevent_log(CSC_CTL | CSC_SHELF_SW | 11594 CTL_TASK_REPORT, 11595 csevent_LogType_Trace, 11596 csevent_Severity_Information, 11597 csevent_AlertLevel_Green, 11598 csevent_FRU_Firmware, 11599 csevent_FRU_Unknown, 11600 "CTL: received task: %s",task_desc); 11601#endif 11602 } else { 11603#ifdef NEEDTOPORT 11604 csevent_log(CSC_CTL | CSC_SHELF_SW | 11605 CTL_TASK_REPORT, 11606 csevent_LogType_Trace, 11607 csevent_Severity_Information, 11608 csevent_AlertLevel_Green, 11609 csevent_FRU_Firmware, 11610 csevent_FRU_Unknown, 11611 "CTL: received unknown task " 11612 "type: %d (%#x)", 11613 io->taskio.task_action, 11614 io->taskio.task_action); 11615#endif 11616 } 11617 switch (io->taskio.task_action) { 11618 case CTL_TASK_ABORT_TASK: 11619 retval = ctl_abort_task(io); 11620 break; 11621 case CTL_TASK_ABORT_TASK_SET: 11622 break; 11623 case CTL_TASK_CLEAR_ACA: 11624 break; 11625 case CTL_TASK_CLEAR_TASK_SET: 11626 break; 11627 case CTL_TASK_LUN_RESET: { 11628 struct ctl_lun *lun; 11629 uint32_t targ_lun; 11630 int retval; 11631 11632 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11633 mtx_lock(&ctl_softc->ctl_lock); 11634 if ((targ_lun < CTL_MAX_LUNS) 11635 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11636 lun = ctl_softc->ctl_luns[targ_lun]; 11637 else { 11638 mtx_unlock(&ctl_softc->ctl_lock); 11639 retval = 1; 11640 break; 11641 } 11642 11643 if (!(io->io_hdr.flags & 11644 CTL_FLAG_FROM_OTHER_SC)) { 11645 union ctl_ha_msg msg_info; 11646 11647 io->io_hdr.flags |= 11648 CTL_FLAG_SENT_2OTHER_SC; 11649 msg_info.hdr.msg_type = 11650 CTL_MSG_MANAGE_TASKS; 11651 msg_info.hdr.nexus = io->io_hdr.nexus; 11652 msg_info.task.task_action = 11653 CTL_TASK_LUN_RESET; 11654 msg_info.hdr.original_sc = NULL; 11655 msg_info.hdr.serializing_sc = NULL; 11656 if (CTL_HA_STATUS_SUCCESS != 11657 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11658 (void *)&msg_info, 11659 sizeof(msg_info), 0)) { 11660 } 11661 } 11662 11663 retval = ctl_lun_reset(lun, io, 11664 CTL_UA_LUN_RESET); 11665 mtx_unlock(&ctl_softc->ctl_lock); 11666 break; 11667 } 11668 case CTL_TASK_TARGET_RESET: 11669 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 11670 break; 11671 case CTL_TASK_BUS_RESET: 11672 retval = ctl_bus_reset(ctl_softc, io); 11673 break; 11674 case CTL_TASK_PORT_LOGIN: 11675 break; 11676 case CTL_TASK_PORT_LOGOUT: 11677 break; 11678 default: 11679 printf("ctl_run_task: got unknown task management event %d\n", 11680 io->taskio.task_action); 11681 break; 11682 } 11683 if (retval == 0) 11684 io->io_hdr.status = CTL_SUCCESS; 11685 else 11686 io->io_hdr.status = CTL_ERROR; 11687 11688 /* 11689 * This will queue this I/O to the done queue, but the 11690 * work thread won't be able to process it until we 11691 * return and the lock is released. 11692 */ 11693 ctl_done(io); 11694} 11695 11696/* 11697 * For HA operation. Handle commands that come in from the other 11698 * controller. 11699 */ 11700static void 11701ctl_handle_isc(union ctl_io *io) 11702{ 11703 int free_io; 11704 struct ctl_lun *lun; 11705 struct ctl_softc *ctl_softc; 11706 uint32_t targ_lun; 11707 11708 ctl_softc = control_softc; 11709 11710 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11711 lun = ctl_softc->ctl_luns[targ_lun]; 11712 11713 switch (io->io_hdr.msg_type) { 11714 case CTL_MSG_SERIALIZE: 11715 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 11716 break; 11717 case CTL_MSG_R2R: { 11718 const struct ctl_cmd_entry *entry; 11719 11720 /* 11721 * This is only used in SER_ONLY mode. 11722 */ 11723 free_io = 0; 11724 entry = ctl_get_cmd_entry(&io->scsiio); 11725 mtx_lock(&lun->lun_lock); 11726 if (ctl_scsiio_lun_check(ctl_softc, lun, 11727 entry, (struct ctl_scsiio *)io) != 0) { 11728 mtx_unlock(&lun->lun_lock); 11729 ctl_done(io); 11730 break; 11731 } 11732 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11733 mtx_unlock(&lun->lun_lock); 11734 ctl_enqueue_rtr(io); 11735 break; 11736 } 11737 case CTL_MSG_FINISH_IO: 11738 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 11739 free_io = 0; 11740 ctl_done(io); 11741 } else { 11742 free_io = 1; 11743 mtx_lock(&lun->lun_lock); 11744 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 11745 ooa_links); 11746 ctl_check_blocked(lun); 11747 mtx_unlock(&lun->lun_lock); 11748 } 11749 break; 11750 case CTL_MSG_PERS_ACTION: 11751 ctl_hndl_per_res_out_on_other_sc( 11752 (union ctl_ha_msg *)&io->presio.pr_msg); 11753 free_io = 1; 11754 break; 11755 case CTL_MSG_BAD_JUJU: 11756 free_io = 0; 11757 ctl_done(io); 11758 break; 11759 case CTL_MSG_DATAMOVE: 11760 /* Only used in XFER mode */ 11761 free_io = 0; 11762 ctl_datamove_remote(io); 11763 break; 11764 case CTL_MSG_DATAMOVE_DONE: 11765 /* Only used in XFER mode */ 11766 free_io = 0; 11767 io->scsiio.be_move_done(io); 11768 break; 11769 default: 11770 free_io = 1; 11771 printf("%s: Invalid message type %d\n", 11772 __func__, io->io_hdr.msg_type); 11773 break; 11774 } 11775 if (free_io) 11776 ctl_free_io(io); 11777 11778} 11779 11780 11781/* 11782 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 11783 * there is no match. 11784 */ 11785static ctl_lun_error_pattern 11786ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 11787{ 11788 const struct ctl_cmd_entry *entry; 11789 ctl_lun_error_pattern filtered_pattern, pattern; 11790 11791 pattern = desc->error_pattern; 11792 11793 /* 11794 * XXX KDM we need more data passed into this function to match a 11795 * custom pattern, and we actually need to implement custom pattern 11796 * matching. 11797 */ 11798 if (pattern & CTL_LUN_PAT_CMD) 11799 return (CTL_LUN_PAT_CMD); 11800 11801 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 11802 return (CTL_LUN_PAT_ANY); 11803 11804 entry = ctl_get_cmd_entry(ctsio); 11805 11806 filtered_pattern = entry->pattern & pattern; 11807 11808 /* 11809 * If the user requested specific flags in the pattern (e.g. 11810 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 11811 * flags. 11812 * 11813 * If the user did not specify any flags, it doesn't matter whether 11814 * or not the command supports the flags. 11815 */ 11816 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 11817 (pattern & ~CTL_LUN_PAT_MASK)) 11818 return (CTL_LUN_PAT_NONE); 11819 11820 /* 11821 * If the user asked for a range check, see if the requested LBA 11822 * range overlaps with this command's LBA range. 11823 */ 11824 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 11825 uint64_t lba1; 11826 uint32_t len1; 11827 ctl_action action; 11828 int retval; 11829 11830 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 11831 if (retval != 0) 11832 return (CTL_LUN_PAT_NONE); 11833 11834 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 11835 desc->lba_range.len); 11836 /* 11837 * A "pass" means that the LBA ranges don't overlap, so 11838 * this doesn't match the user's range criteria. 11839 */ 11840 if (action == CTL_ACTION_PASS) 11841 return (CTL_LUN_PAT_NONE); 11842 } 11843 11844 return (filtered_pattern); 11845} 11846 11847static void 11848ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 11849{ 11850 struct ctl_error_desc *desc, *desc2; 11851 11852 mtx_assert(&lun->lun_lock, MA_OWNED); 11853 11854 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 11855 ctl_lun_error_pattern pattern; 11856 /* 11857 * Check to see whether this particular command matches 11858 * the pattern in the descriptor. 11859 */ 11860 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 11861 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 11862 continue; 11863 11864 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 11865 case CTL_LUN_INJ_ABORTED: 11866 ctl_set_aborted(&io->scsiio); 11867 break; 11868 case CTL_LUN_INJ_MEDIUM_ERR: 11869 ctl_set_medium_error(&io->scsiio); 11870 break; 11871 case CTL_LUN_INJ_UA: 11872 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 11873 * OCCURRED */ 11874 ctl_set_ua(&io->scsiio, 0x29, 0x00); 11875 break; 11876 case CTL_LUN_INJ_CUSTOM: 11877 /* 11878 * We're assuming the user knows what he is doing. 11879 * Just copy the sense information without doing 11880 * checks. 11881 */ 11882 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 11883 ctl_min(sizeof(desc->custom_sense), 11884 sizeof(io->scsiio.sense_data))); 11885 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 11886 io->scsiio.sense_len = SSD_FULL_SIZE; 11887 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11888 break; 11889 case CTL_LUN_INJ_NONE: 11890 default: 11891 /* 11892 * If this is an error injection type we don't know 11893 * about, clear the continuous flag (if it is set) 11894 * so it will get deleted below. 11895 */ 11896 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 11897 break; 11898 } 11899 /* 11900 * By default, each error injection action is a one-shot 11901 */ 11902 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 11903 continue; 11904 11905 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 11906 11907 free(desc, M_CTL); 11908 } 11909} 11910 11911#ifdef CTL_IO_DELAY 11912static void 11913ctl_datamove_timer_wakeup(void *arg) 11914{ 11915 union ctl_io *io; 11916 11917 io = (union ctl_io *)arg; 11918 11919 ctl_datamove(io); 11920} 11921#endif /* CTL_IO_DELAY */ 11922 11923void 11924ctl_datamove(union ctl_io *io) 11925{ 11926 void (*fe_datamove)(union ctl_io *io); 11927 11928 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 11929 11930 CTL_DEBUG_PRINT(("ctl_datamove\n")); 11931 11932#ifdef CTL_TIME_IO 11933 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 11934 char str[256]; 11935 char path_str[64]; 11936 struct sbuf sb; 11937 11938 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 11939 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 11940 11941 sbuf_cat(&sb, path_str); 11942 switch (io->io_hdr.io_type) { 11943 case CTL_IO_SCSI: 11944 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 11945 sbuf_printf(&sb, "\n"); 11946 sbuf_cat(&sb, path_str); 11947 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 11948 io->scsiio.tag_num, io->scsiio.tag_type); 11949 break; 11950 case CTL_IO_TASK: 11951 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 11952 "Tag Type: %d\n", io->taskio.task_action, 11953 io->taskio.tag_num, io->taskio.tag_type); 11954 break; 11955 default: 11956 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 11957 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 11958 break; 11959 } 11960 sbuf_cat(&sb, path_str); 11961 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 11962 (intmax_t)time_uptime - io->io_hdr.start_time); 11963 sbuf_finish(&sb); 11964 printf("%s", sbuf_data(&sb)); 11965 } 11966#endif /* CTL_TIME_IO */ 11967 11968#ifdef CTL_IO_DELAY 11969 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 11970 struct ctl_lun *lun; 11971 11972 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 11973 11974 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 11975 } else { 11976 struct ctl_lun *lun; 11977 11978 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 11979 if ((lun != NULL) 11980 && (lun->delay_info.datamove_delay > 0)) { 11981 struct callout *callout; 11982 11983 callout = (struct callout *)&io->io_hdr.timer_bytes; 11984 callout_init(callout, /*mpsafe*/ 1); 11985 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 11986 callout_reset(callout, 11987 lun->delay_info.datamove_delay * hz, 11988 ctl_datamove_timer_wakeup, io); 11989 if (lun->delay_info.datamove_type == 11990 CTL_DELAY_TYPE_ONESHOT) 11991 lun->delay_info.datamove_delay = 0; 11992 return; 11993 } 11994 } 11995#endif 11996 11997 /* 11998 * This command has been aborted. Set the port status, so we fail 11999 * the data move. 12000 */ 12001 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12002 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12003 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12004 io->io_hdr.nexus.targ_port, 12005 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12006 io->io_hdr.nexus.targ_lun); 12007 io->io_hdr.status = CTL_CMD_ABORTED; 12008 io->io_hdr.port_status = 31337; 12009 /* 12010 * Note that the backend, in this case, will get the 12011 * callback in its context. In other cases it may get 12012 * called in the frontend's interrupt thread context. 12013 */ 12014 io->scsiio.be_move_done(io); 12015 return; 12016 } 12017 12018 /* 12019 * If we're in XFER mode and this I/O is from the other shelf 12020 * controller, we need to send the DMA to the other side to 12021 * actually transfer the data to/from the host. In serialize only 12022 * mode the transfer happens below CTL and ctl_datamove() is only 12023 * called on the machine that originally received the I/O. 12024 */ 12025 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12026 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12027 union ctl_ha_msg msg; 12028 uint32_t sg_entries_sent; 12029 int do_sg_copy; 12030 int i; 12031 12032 memset(&msg, 0, sizeof(msg)); 12033 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12034 msg.hdr.original_sc = io->io_hdr.original_sc; 12035 msg.hdr.serializing_sc = io; 12036 msg.hdr.nexus = io->io_hdr.nexus; 12037 msg.dt.flags = io->io_hdr.flags; 12038 /* 12039 * We convert everything into a S/G list here. We can't 12040 * pass by reference, only by value between controllers. 12041 * So we can't pass a pointer to the S/G list, only as many 12042 * S/G entries as we can fit in here. If it's possible for 12043 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12044 * then we need to break this up into multiple transfers. 12045 */ 12046 if (io->scsiio.kern_sg_entries == 0) { 12047 msg.dt.kern_sg_entries = 1; 12048 /* 12049 * If this is in cached memory, flush the cache 12050 * before we send the DMA request to the other 12051 * controller. We want to do this in either the 12052 * read or the write case. The read case is 12053 * straightforward. In the write case, we want to 12054 * make sure nothing is in the local cache that 12055 * could overwrite the DMAed data. 12056 */ 12057 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12058 /* 12059 * XXX KDM use bus_dmamap_sync() here. 12060 */ 12061 } 12062 12063 /* 12064 * Convert to a physical address if this is a 12065 * virtual address. 12066 */ 12067 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12068 msg.dt.sg_list[0].addr = 12069 io->scsiio.kern_data_ptr; 12070 } else { 12071 /* 12072 * XXX KDM use busdma here! 12073 */ 12074#if 0 12075 msg.dt.sg_list[0].addr = (void *) 12076 vtophys(io->scsiio.kern_data_ptr); 12077#endif 12078 } 12079 12080 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12081 do_sg_copy = 0; 12082 } else { 12083 struct ctl_sg_entry *sgl; 12084 12085 do_sg_copy = 1; 12086 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12087 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12088 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12089 /* 12090 * XXX KDM use bus_dmamap_sync() here. 12091 */ 12092 } 12093 } 12094 12095 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12096 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12097 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12098 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12099 msg.dt.sg_sequence = 0; 12100 12101 /* 12102 * Loop until we've sent all of the S/G entries. On the 12103 * other end, we'll recompose these S/G entries into one 12104 * contiguous list before passing it to the 12105 */ 12106 for (sg_entries_sent = 0; sg_entries_sent < 12107 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12108 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12109 sizeof(msg.dt.sg_list[0])), 12110 msg.dt.kern_sg_entries - sg_entries_sent); 12111 12112 if (do_sg_copy != 0) { 12113 struct ctl_sg_entry *sgl; 12114 int j; 12115 12116 sgl = (struct ctl_sg_entry *) 12117 io->scsiio.kern_data_ptr; 12118 /* 12119 * If this is in cached memory, flush the cache 12120 * before we send the DMA request to the other 12121 * controller. We want to do this in either 12122 * the * read or the write case. The read 12123 * case is straightforward. In the write 12124 * case, we want to make sure nothing is 12125 * in the local cache that could overwrite 12126 * the DMAed data. 12127 */ 12128 12129 for (i = sg_entries_sent, j = 0; 12130 i < msg.dt.cur_sg_entries; i++, j++) { 12131 if ((io->io_hdr.flags & 12132 CTL_FLAG_NO_DATASYNC) == 0) { 12133 /* 12134 * XXX KDM use bus_dmamap_sync() 12135 */ 12136 } 12137 if ((io->io_hdr.flags & 12138 CTL_FLAG_BUS_ADDR) == 0) { 12139 /* 12140 * XXX KDM use busdma. 12141 */ 12142#if 0 12143 msg.dt.sg_list[j].addr =(void *) 12144 vtophys(sgl[i].addr); 12145#endif 12146 } else { 12147 msg.dt.sg_list[j].addr = 12148 sgl[i].addr; 12149 } 12150 msg.dt.sg_list[j].len = sgl[i].len; 12151 } 12152 } 12153 12154 sg_entries_sent += msg.dt.cur_sg_entries; 12155 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12156 msg.dt.sg_last = 1; 12157 else 12158 msg.dt.sg_last = 0; 12159 12160 /* 12161 * XXX KDM drop and reacquire the lock here? 12162 */ 12163 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12164 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12165 /* 12166 * XXX do something here. 12167 */ 12168 } 12169 12170 msg.dt.sent_sg_entries = sg_entries_sent; 12171 } 12172 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12173 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12174 ctl_failover_io(io, /*have_lock*/ 0); 12175 12176 } else { 12177 12178 /* 12179 * Lookup the fe_datamove() function for this particular 12180 * front end. 12181 */ 12182 fe_datamove = 12183 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12184 12185 fe_datamove(io); 12186 } 12187} 12188 12189static void 12190ctl_send_datamove_done(union ctl_io *io, int have_lock) 12191{ 12192 union ctl_ha_msg msg; 12193 int isc_status; 12194 12195 memset(&msg, 0, sizeof(msg)); 12196 12197 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12198 msg.hdr.original_sc = io; 12199 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12200 msg.hdr.nexus = io->io_hdr.nexus; 12201 msg.hdr.status = io->io_hdr.status; 12202 msg.scsi.tag_num = io->scsiio.tag_num; 12203 msg.scsi.tag_type = io->scsiio.tag_type; 12204 msg.scsi.scsi_status = io->scsiio.scsi_status; 12205 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12206 sizeof(io->scsiio.sense_data)); 12207 msg.scsi.sense_len = io->scsiio.sense_len; 12208 msg.scsi.sense_residual = io->scsiio.sense_residual; 12209 msg.scsi.fetd_status = io->io_hdr.port_status; 12210 msg.scsi.residual = io->scsiio.residual; 12211 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12212 12213 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12214 ctl_failover_io(io, /*have_lock*/ have_lock); 12215 return; 12216 } 12217 12218 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12219 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12220 /* XXX do something if this fails */ 12221 } 12222 12223} 12224 12225/* 12226 * The DMA to the remote side is done, now we need to tell the other side 12227 * we're done so it can continue with its data movement. 12228 */ 12229static void 12230ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12231{ 12232 union ctl_io *io; 12233 12234 io = rq->context; 12235 12236 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12237 printf("%s: ISC DMA write failed with error %d", __func__, 12238 rq->ret); 12239 ctl_set_internal_failure(&io->scsiio, 12240 /*sks_valid*/ 1, 12241 /*retry_count*/ rq->ret); 12242 } 12243 12244 ctl_dt_req_free(rq); 12245 12246 /* 12247 * In this case, we had to malloc the memory locally. Free it. 12248 */ 12249 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12250 int i; 12251 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12252 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12253 } 12254 /* 12255 * The data is in local and remote memory, so now we need to send 12256 * status (good or back) back to the other side. 12257 */ 12258 ctl_send_datamove_done(io, /*have_lock*/ 0); 12259} 12260 12261/* 12262 * We've moved the data from the host/controller into local memory. Now we 12263 * need to push it over to the remote controller's memory. 12264 */ 12265static int 12266ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12267{ 12268 int retval; 12269 12270 retval = 0; 12271 12272 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12273 ctl_datamove_remote_write_cb); 12274 12275 return (retval); 12276} 12277 12278static void 12279ctl_datamove_remote_write(union ctl_io *io) 12280{ 12281 int retval; 12282 void (*fe_datamove)(union ctl_io *io); 12283 12284 /* 12285 * - Get the data from the host/HBA into local memory. 12286 * - DMA memory from the local controller to the remote controller. 12287 * - Send status back to the remote controller. 12288 */ 12289 12290 retval = ctl_datamove_remote_sgl_setup(io); 12291 if (retval != 0) 12292 return; 12293 12294 /* Switch the pointer over so the FETD knows what to do */ 12295 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12296 12297 /* 12298 * Use a custom move done callback, since we need to send completion 12299 * back to the other controller, not to the backend on this side. 12300 */ 12301 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12302 12303 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12304 12305 fe_datamove(io); 12306 12307 return; 12308 12309} 12310 12311static int 12312ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12313{ 12314#if 0 12315 char str[256]; 12316 char path_str[64]; 12317 struct sbuf sb; 12318#endif 12319 12320 /* 12321 * In this case, we had to malloc the memory locally. Free it. 12322 */ 12323 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12324 int i; 12325 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12326 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12327 } 12328 12329#if 0 12330 scsi_path_string(io, path_str, sizeof(path_str)); 12331 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12332 sbuf_cat(&sb, path_str); 12333 scsi_command_string(&io->scsiio, NULL, &sb); 12334 sbuf_printf(&sb, "\n"); 12335 sbuf_cat(&sb, path_str); 12336 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12337 io->scsiio.tag_num, io->scsiio.tag_type); 12338 sbuf_cat(&sb, path_str); 12339 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12340 io->io_hdr.flags, io->io_hdr.status); 12341 sbuf_finish(&sb); 12342 printk("%s", sbuf_data(&sb)); 12343#endif 12344 12345 12346 /* 12347 * The read is done, now we need to send status (good or bad) back 12348 * to the other side. 12349 */ 12350 ctl_send_datamove_done(io, /*have_lock*/ 0); 12351 12352 return (0); 12353} 12354 12355static void 12356ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12357{ 12358 union ctl_io *io; 12359 void (*fe_datamove)(union ctl_io *io); 12360 12361 io = rq->context; 12362 12363 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12364 printf("%s: ISC DMA read failed with error %d", __func__, 12365 rq->ret); 12366 ctl_set_internal_failure(&io->scsiio, 12367 /*sks_valid*/ 1, 12368 /*retry_count*/ rq->ret); 12369 } 12370 12371 ctl_dt_req_free(rq); 12372 12373 /* Switch the pointer over so the FETD knows what to do */ 12374 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12375 12376 /* 12377 * Use a custom move done callback, since we need to send completion 12378 * back to the other controller, not to the backend on this side. 12379 */ 12380 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12381 12382 /* XXX KDM add checks like the ones in ctl_datamove? */ 12383 12384 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12385 12386 fe_datamove(io); 12387} 12388 12389static int 12390ctl_datamove_remote_sgl_setup(union ctl_io *io) 12391{ 12392 struct ctl_sg_entry *local_sglist, *remote_sglist; 12393 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12394 struct ctl_softc *softc; 12395 int retval; 12396 int i; 12397 12398 retval = 0; 12399 softc = control_softc; 12400 12401 local_sglist = io->io_hdr.local_sglist; 12402 local_dma_sglist = io->io_hdr.local_dma_sglist; 12403 remote_sglist = io->io_hdr.remote_sglist; 12404 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12405 12406 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12407 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12408 local_sglist[i].len = remote_sglist[i].len; 12409 12410 /* 12411 * XXX Detect the situation where the RS-level I/O 12412 * redirector on the other side has already read the 12413 * data off of the AOR RS on this side, and 12414 * transferred it to remote (mirror) memory on the 12415 * other side. Since we already have the data in 12416 * memory here, we just need to use it. 12417 * 12418 * XXX KDM this can probably be removed once we 12419 * get the cache device code in and take the 12420 * current AOR implementation out. 12421 */ 12422#ifdef NEEDTOPORT 12423 if ((remote_sglist[i].addr >= 12424 (void *)vtophys(softc->mirr->addr)) 12425 && (remote_sglist[i].addr < 12426 ((void *)vtophys(softc->mirr->addr) + 12427 CacheMirrorOffset))) { 12428 local_sglist[i].addr = remote_sglist[i].addr - 12429 CacheMirrorOffset; 12430 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12431 CTL_FLAG_DATA_IN) 12432 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12433 } else { 12434 local_sglist[i].addr = remote_sglist[i].addr + 12435 CacheMirrorOffset; 12436 } 12437#endif 12438#if 0 12439 printf("%s: local %p, remote %p, len %d\n", 12440 __func__, local_sglist[i].addr, 12441 remote_sglist[i].addr, local_sglist[i].len); 12442#endif 12443 } 12444 } else { 12445 uint32_t len_to_go; 12446 12447 /* 12448 * In this case, we don't have automatically allocated 12449 * memory for this I/O on this controller. This typically 12450 * happens with internal CTL I/O -- e.g. inquiry, mode 12451 * sense, etc. Anything coming from RAIDCore will have 12452 * a mirror area available. 12453 */ 12454 len_to_go = io->scsiio.kern_data_len; 12455 12456 /* 12457 * Clear the no datasync flag, we have to use malloced 12458 * buffers. 12459 */ 12460 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12461 12462 /* 12463 * The difficult thing here is that the size of the various 12464 * S/G segments may be different than the size from the 12465 * remote controller. That'll make it harder when DMAing 12466 * the data back to the other side. 12467 */ 12468 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12469 sizeof(io->io_hdr.remote_sglist[0])) && 12470 (len_to_go > 0); i++) { 12471 local_sglist[i].len = ctl_min(len_to_go, 131072); 12472 CTL_SIZE_8B(local_dma_sglist[i].len, 12473 local_sglist[i].len); 12474 local_sglist[i].addr = 12475 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 12476 12477 local_dma_sglist[i].addr = local_sglist[i].addr; 12478 12479 if (local_sglist[i].addr == NULL) { 12480 int j; 12481 12482 printf("malloc failed for %zd bytes!", 12483 local_dma_sglist[i].len); 12484 for (j = 0; j < i; j++) { 12485 free(local_sglist[j].addr, M_CTL); 12486 } 12487 ctl_set_internal_failure(&io->scsiio, 12488 /*sks_valid*/ 1, 12489 /*retry_count*/ 4857); 12490 retval = 1; 12491 goto bailout_error; 12492 12493 } 12494 /* XXX KDM do we need a sync here? */ 12495 12496 len_to_go -= local_sglist[i].len; 12497 } 12498 /* 12499 * Reset the number of S/G entries accordingly. The 12500 * original number of S/G entries is available in 12501 * rem_sg_entries. 12502 */ 12503 io->scsiio.kern_sg_entries = i; 12504 12505#if 0 12506 printf("%s: kern_sg_entries = %d\n", __func__, 12507 io->scsiio.kern_sg_entries); 12508 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12509 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 12510 local_sglist[i].addr, local_sglist[i].len, 12511 local_dma_sglist[i].len); 12512#endif 12513 } 12514 12515 12516 return (retval); 12517 12518bailout_error: 12519 12520 ctl_send_datamove_done(io, /*have_lock*/ 0); 12521 12522 return (retval); 12523} 12524 12525static int 12526ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12527 ctl_ha_dt_cb callback) 12528{ 12529 struct ctl_ha_dt_req *rq; 12530 struct ctl_sg_entry *remote_sglist, *local_sglist; 12531 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 12532 uint32_t local_used, remote_used, total_used; 12533 int retval; 12534 int i, j; 12535 12536 retval = 0; 12537 12538 rq = ctl_dt_req_alloc(); 12539 12540 /* 12541 * If we failed to allocate the request, and if the DMA didn't fail 12542 * anyway, set busy status. This is just a resource allocation 12543 * failure. 12544 */ 12545 if ((rq == NULL) 12546 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 12547 ctl_set_busy(&io->scsiio); 12548 12549 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 12550 12551 if (rq != NULL) 12552 ctl_dt_req_free(rq); 12553 12554 /* 12555 * The data move failed. We need to return status back 12556 * to the other controller. No point in trying to DMA 12557 * data to the remote controller. 12558 */ 12559 12560 ctl_send_datamove_done(io, /*have_lock*/ 0); 12561 12562 retval = 1; 12563 12564 goto bailout; 12565 } 12566 12567 local_sglist = io->io_hdr.local_sglist; 12568 local_dma_sglist = io->io_hdr.local_dma_sglist; 12569 remote_sglist = io->io_hdr.remote_sglist; 12570 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12571 local_used = 0; 12572 remote_used = 0; 12573 total_used = 0; 12574 12575 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 12576 rq->ret = CTL_HA_STATUS_SUCCESS; 12577 rq->context = io; 12578 callback(rq); 12579 goto bailout; 12580 } 12581 12582 /* 12583 * Pull/push the data over the wire from/to the other controller. 12584 * This takes into account the possibility that the local and 12585 * remote sglists may not be identical in terms of the size of 12586 * the elements and the number of elements. 12587 * 12588 * One fundamental assumption here is that the length allocated for 12589 * both the local and remote sglists is identical. Otherwise, we've 12590 * essentially got a coding error of some sort. 12591 */ 12592 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12593 int isc_ret; 12594 uint32_t cur_len, dma_length; 12595 uint8_t *tmp_ptr; 12596 12597 rq->id = CTL_HA_DATA_CTL; 12598 rq->command = command; 12599 rq->context = io; 12600 12601 /* 12602 * Both pointers should be aligned. But it is possible 12603 * that the allocation length is not. They should both 12604 * also have enough slack left over at the end, though, 12605 * to round up to the next 8 byte boundary. 12606 */ 12607 cur_len = ctl_min(local_sglist[i].len - local_used, 12608 remote_sglist[j].len - remote_used); 12609 12610 /* 12611 * In this case, we have a size issue and need to decrease 12612 * the size, except in the case where we actually have less 12613 * than 8 bytes left. In that case, we need to increase 12614 * the DMA length to get the last bit. 12615 */ 12616 if ((cur_len & 0x7) != 0) { 12617 if (cur_len > 0x7) { 12618 cur_len = cur_len - (cur_len & 0x7); 12619 dma_length = cur_len; 12620 } else { 12621 CTL_SIZE_8B(dma_length, cur_len); 12622 } 12623 12624 } else 12625 dma_length = cur_len; 12626 12627 /* 12628 * If we had to allocate memory for this I/O, instead of using 12629 * the non-cached mirror memory, we'll need to flush the cache 12630 * before trying to DMA to the other controller. 12631 * 12632 * We could end up doing this multiple times for the same 12633 * segment if we have a larger local segment than remote 12634 * segment. That shouldn't be an issue. 12635 */ 12636 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12637 /* 12638 * XXX KDM use bus_dmamap_sync() here. 12639 */ 12640 } 12641 12642 rq->size = dma_length; 12643 12644 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12645 tmp_ptr += local_used; 12646 12647 /* Use physical addresses when talking to ISC hardware */ 12648 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12649 /* XXX KDM use busdma */ 12650#if 0 12651 rq->local = vtophys(tmp_ptr); 12652#endif 12653 } else 12654 rq->local = tmp_ptr; 12655 12656 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12657 tmp_ptr += remote_used; 12658 rq->remote = tmp_ptr; 12659 12660 rq->callback = NULL; 12661 12662 local_used += cur_len; 12663 if (local_used >= local_sglist[i].len) { 12664 i++; 12665 local_used = 0; 12666 } 12667 12668 remote_used += cur_len; 12669 if (remote_used >= remote_sglist[j].len) { 12670 j++; 12671 remote_used = 0; 12672 } 12673 total_used += cur_len; 12674 12675 if (total_used >= io->scsiio.kern_data_len) 12676 rq->callback = callback; 12677 12678 if ((rq->size & 0x7) != 0) { 12679 printf("%s: warning: size %d is not on 8b boundary\n", 12680 __func__, rq->size); 12681 } 12682 if (((uintptr_t)rq->local & 0x7) != 0) { 12683 printf("%s: warning: local %p not on 8b boundary\n", 12684 __func__, rq->local); 12685 } 12686 if (((uintptr_t)rq->remote & 0x7) != 0) { 12687 printf("%s: warning: remote %p not on 8b boundary\n", 12688 __func__, rq->local); 12689 } 12690#if 0 12691 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 12692 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12693 rq->local, rq->remote, rq->size); 12694#endif 12695 12696 isc_ret = ctl_dt_single(rq); 12697 if (isc_ret == CTL_HA_STATUS_WAIT) 12698 continue; 12699 12700 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 12701 rq->ret = CTL_HA_STATUS_SUCCESS; 12702 } else { 12703 rq->ret = isc_ret; 12704 } 12705 callback(rq); 12706 goto bailout; 12707 } 12708 12709bailout: 12710 return (retval); 12711 12712} 12713 12714static void 12715ctl_datamove_remote_read(union ctl_io *io) 12716{ 12717 int retval; 12718 int i; 12719 12720 /* 12721 * This will send an error to the other controller in the case of a 12722 * failure. 12723 */ 12724 retval = ctl_datamove_remote_sgl_setup(io); 12725 if (retval != 0) 12726 return; 12727 12728 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12729 ctl_datamove_remote_read_cb); 12730 if ((retval != 0) 12731 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 12732 /* 12733 * Make sure we free memory if there was an error.. The 12734 * ctl_datamove_remote_xfer() function will send the 12735 * datamove done message, or call the callback with an 12736 * error if there is a problem. 12737 */ 12738 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12739 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12740 } 12741 12742 return; 12743} 12744 12745/* 12746 * Process a datamove request from the other controller. This is used for 12747 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12748 * first. Once that is complete, the data gets DMAed into the remote 12749 * controller's memory. For reads, we DMA from the remote controller's 12750 * memory into our memory first, and then move it out to the FETD. 12751 */ 12752static void 12753ctl_datamove_remote(union ctl_io *io) 12754{ 12755 struct ctl_softc *softc; 12756 12757 softc = control_softc; 12758 12759 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 12760 12761 /* 12762 * Note that we look for an aborted I/O here, but don't do some of 12763 * the other checks that ctl_datamove() normally does. We don't 12764 * need to run the task queue, because this I/O is on the ISC 12765 * queue, which is executed by the work thread after the task queue. 12766 * We don't need to run the datamove delay code, since that should 12767 * have been done if need be on the other controller. 12768 */ 12769 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12770 12771 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 12772 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 12773 io->io_hdr.nexus.targ_port, 12774 io->io_hdr.nexus.targ_target.id, 12775 io->io_hdr.nexus.targ_lun); 12776 io->io_hdr.status = CTL_CMD_ABORTED; 12777 io->io_hdr.port_status = 31338; 12778 12779 ctl_send_datamove_done(io, /*have_lock*/ 0); 12780 12781 return; 12782 } 12783 12784 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 12785 ctl_datamove_remote_write(io); 12786 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 12787 ctl_datamove_remote_read(io); 12788 } else { 12789 union ctl_ha_msg msg; 12790 struct scsi_sense_data *sense; 12791 uint8_t sks[3]; 12792 int retry_count; 12793 12794 memset(&msg, 0, sizeof(msg)); 12795 12796 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 12797 msg.hdr.status = CTL_SCSI_ERROR; 12798 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 12799 12800 retry_count = 4243; 12801 12802 sense = &msg.scsi.sense_data; 12803 sks[0] = SSD_SCS_VALID; 12804 sks[1] = (retry_count >> 8) & 0xff; 12805 sks[2] = retry_count & 0xff; 12806 12807 /* "Internal target failure" */ 12808 scsi_set_sense_data(sense, 12809 /*sense_format*/ SSD_TYPE_NONE, 12810 /*current_error*/ 1, 12811 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 12812 /*asc*/ 0x44, 12813 /*ascq*/ 0x00, 12814 /*type*/ SSD_ELEM_SKS, 12815 /*size*/ sizeof(sks), 12816 /*data*/ sks, 12817 SSD_ELEM_NONE); 12818 12819 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12820 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12821 ctl_failover_io(io, /*have_lock*/ 1); 12822 return; 12823 } 12824 12825 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 12826 CTL_HA_STATUS_SUCCESS) { 12827 /* XXX KDM what to do if this fails? */ 12828 } 12829 return; 12830 } 12831 12832} 12833 12834static int 12835ctl_process_done(union ctl_io *io) 12836{ 12837 struct ctl_lun *lun; 12838 struct ctl_softc *ctl_softc; 12839 void (*fe_done)(union ctl_io *io); 12840 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 12841 12842 CTL_DEBUG_PRINT(("ctl_process_done\n")); 12843 12844 fe_done = 12845 control_softc->ctl_ports[targ_port]->fe_done; 12846 12847#ifdef CTL_TIME_IO 12848 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12849 char str[256]; 12850 char path_str[64]; 12851 struct sbuf sb; 12852 12853 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12854 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12855 12856 sbuf_cat(&sb, path_str); 12857 switch (io->io_hdr.io_type) { 12858 case CTL_IO_SCSI: 12859 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12860 sbuf_printf(&sb, "\n"); 12861 sbuf_cat(&sb, path_str); 12862 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12863 io->scsiio.tag_num, io->scsiio.tag_type); 12864 break; 12865 case CTL_IO_TASK: 12866 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12867 "Tag Type: %d\n", io->taskio.task_action, 12868 io->taskio.tag_num, io->taskio.tag_type); 12869 break; 12870 default: 12871 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12872 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12873 break; 12874 } 12875 sbuf_cat(&sb, path_str); 12876 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 12877 (intmax_t)time_uptime - io->io_hdr.start_time); 12878 sbuf_finish(&sb); 12879 printf("%s", sbuf_data(&sb)); 12880 } 12881#endif /* CTL_TIME_IO */ 12882 12883 switch (io->io_hdr.io_type) { 12884 case CTL_IO_SCSI: 12885 break; 12886 case CTL_IO_TASK: 12887 if (bootverbose || verbose > 0) 12888 ctl_io_error_print(io, NULL); 12889 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 12890 ctl_free_io(io); 12891 else 12892 fe_done(io); 12893 return (CTL_RETVAL_COMPLETE); 12894 break; 12895 default: 12896 printf("ctl_process_done: invalid io type %d\n", 12897 io->io_hdr.io_type); 12898 panic("ctl_process_done: invalid io type %d\n", 12899 io->io_hdr.io_type); 12900 break; /* NOTREACHED */ 12901 } 12902 12903 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12904 if (lun == NULL) { 12905 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 12906 io->io_hdr.nexus.targ_mapped_lun)); 12907 fe_done(io); 12908 goto bailout; 12909 } 12910 ctl_softc = lun->ctl_softc; 12911 12912 mtx_lock(&lun->lun_lock); 12913 12914 /* 12915 * Check to see if we have any errors to inject here. We only 12916 * inject errors for commands that don't already have errors set. 12917 */ 12918 if ((STAILQ_FIRST(&lun->error_list) != NULL) 12919 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 12920 ctl_inject_error(lun, io); 12921 12922 /* 12923 * XXX KDM how do we treat commands that aren't completed 12924 * successfully? 12925 * 12926 * XXX KDM should we also track I/O latency? 12927 */ 12928 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 12929 io->io_hdr.io_type == CTL_IO_SCSI) { 12930#ifdef CTL_TIME_IO 12931 struct bintime cur_bt; 12932#endif 12933 int type; 12934 12935 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12936 CTL_FLAG_DATA_IN) 12937 type = CTL_STATS_READ; 12938 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12939 CTL_FLAG_DATA_OUT) 12940 type = CTL_STATS_WRITE; 12941 else 12942 type = CTL_STATS_NO_IO; 12943 12944 lun->stats.ports[targ_port].bytes[type] += 12945 io->scsiio.kern_total_len; 12946 lun->stats.ports[targ_port].operations[type]++; 12947#ifdef CTL_TIME_IO 12948 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 12949 &io->io_hdr.dma_bt); 12950 lun->stats.ports[targ_port].num_dmas[type] += 12951 io->io_hdr.num_dmas; 12952 getbintime(&cur_bt); 12953 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 12954 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 12955#endif 12956 } 12957 12958 /* 12959 * Remove this from the OOA queue. 12960 */ 12961 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12962 12963 /* 12964 * Run through the blocked queue on this LUN and see if anything 12965 * has become unblocked, now that this transaction is done. 12966 */ 12967 ctl_check_blocked(lun); 12968 12969 /* 12970 * If the LUN has been invalidated, free it if there is nothing 12971 * left on its OOA queue. 12972 */ 12973 if ((lun->flags & CTL_LUN_INVALID) 12974 && TAILQ_EMPTY(&lun->ooa_queue)) { 12975 mtx_unlock(&lun->lun_lock); 12976 mtx_lock(&ctl_softc->ctl_lock); 12977 ctl_free_lun(lun); 12978 mtx_unlock(&ctl_softc->ctl_lock); 12979 } else 12980 mtx_unlock(&lun->lun_lock); 12981 12982 /* 12983 * If this command has been aborted, make sure we set the status 12984 * properly. The FETD is responsible for freeing the I/O and doing 12985 * whatever it needs to do to clean up its state. 12986 */ 12987 if (io->io_hdr.flags & CTL_FLAG_ABORT) 12988 io->io_hdr.status = CTL_CMD_ABORTED; 12989 12990 /* 12991 * We print out status for every task management command. For SCSI 12992 * commands, we filter out any unit attention errors; they happen 12993 * on every boot, and would clutter up the log. Note: task 12994 * management commands aren't printed here, they are printed above, 12995 * since they should never even make it down here. 12996 */ 12997 switch (io->io_hdr.io_type) { 12998 case CTL_IO_SCSI: { 12999 int error_code, sense_key, asc, ascq; 13000 13001 sense_key = 0; 13002 13003 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13004 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13005 /* 13006 * Since this is just for printing, no need to 13007 * show errors here. 13008 */ 13009 scsi_extract_sense_len(&io->scsiio.sense_data, 13010 io->scsiio.sense_len, 13011 &error_code, 13012 &sense_key, 13013 &asc, 13014 &ascq, 13015 /*show_errors*/ 0); 13016 } 13017 13018 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13019 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13020 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13021 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13022 13023 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13024 ctl_softc->skipped_prints++; 13025 } else { 13026 uint32_t skipped_prints; 13027 13028 skipped_prints = ctl_softc->skipped_prints; 13029 13030 ctl_softc->skipped_prints = 0; 13031 ctl_softc->last_print_jiffies = time_uptime; 13032 13033 if (skipped_prints > 0) { 13034#ifdef NEEDTOPORT 13035 csevent_log(CSC_CTL | CSC_SHELF_SW | 13036 CTL_ERROR_REPORT, 13037 csevent_LogType_Trace, 13038 csevent_Severity_Information, 13039 csevent_AlertLevel_Green, 13040 csevent_FRU_Firmware, 13041 csevent_FRU_Unknown, 13042 "High CTL error volume, %d prints " 13043 "skipped", skipped_prints); 13044#endif 13045 } 13046 if (bootverbose || verbose > 0) 13047 ctl_io_error_print(io, NULL); 13048 } 13049 } 13050 break; 13051 } 13052 case CTL_IO_TASK: 13053 if (bootverbose || verbose > 0) 13054 ctl_io_error_print(io, NULL); 13055 break; 13056 default: 13057 break; 13058 } 13059 13060 /* 13061 * Tell the FETD or the other shelf controller we're done with this 13062 * command. Note that only SCSI commands get to this point. Task 13063 * management commands are completed above. 13064 * 13065 * We only send status to the other controller if we're in XFER 13066 * mode. In SER_ONLY mode, the I/O is done on the controller that 13067 * received the I/O (from CTL's perspective), and so the status is 13068 * generated there. 13069 * 13070 * XXX KDM if we hold the lock here, we could cause a deadlock 13071 * if the frontend comes back in in this context to queue 13072 * something. 13073 */ 13074 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13075 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13076 union ctl_ha_msg msg; 13077 13078 memset(&msg, 0, sizeof(msg)); 13079 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13080 msg.hdr.original_sc = io->io_hdr.original_sc; 13081 msg.hdr.nexus = io->io_hdr.nexus; 13082 msg.hdr.status = io->io_hdr.status; 13083 msg.scsi.scsi_status = io->scsiio.scsi_status; 13084 msg.scsi.tag_num = io->scsiio.tag_num; 13085 msg.scsi.tag_type = io->scsiio.tag_type; 13086 msg.scsi.sense_len = io->scsiio.sense_len; 13087 msg.scsi.sense_residual = io->scsiio.sense_residual; 13088 msg.scsi.residual = io->scsiio.residual; 13089 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13090 sizeof(io->scsiio.sense_data)); 13091 /* 13092 * We copy this whether or not this is an I/O-related 13093 * command. Otherwise, we'd have to go and check to see 13094 * whether it's a read/write command, and it really isn't 13095 * worth it. 13096 */ 13097 memcpy(&msg.scsi.lbalen, 13098 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13099 sizeof(msg.scsi.lbalen)); 13100 13101 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13102 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13103 /* XXX do something here */ 13104 } 13105 13106 ctl_free_io(io); 13107 } else 13108 fe_done(io); 13109 13110bailout: 13111 13112 return (CTL_RETVAL_COMPLETE); 13113} 13114 13115/* 13116 * Front end should call this if it doesn't do autosense. When the request 13117 * sense comes back in from the initiator, we'll dequeue this and send it. 13118 */ 13119int 13120ctl_queue_sense(union ctl_io *io) 13121{ 13122 struct ctl_lun *lun; 13123 struct ctl_softc *ctl_softc; 13124 uint32_t initidx, targ_lun; 13125 13126 ctl_softc = control_softc; 13127 13128 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13129 13130 /* 13131 * LUN lookup will likely move to the ctl_work_thread() once we 13132 * have our new queueing infrastructure (that doesn't put things on 13133 * a per-LUN queue initially). That is so that we can handle 13134 * things like an INQUIRY to a LUN that we don't have enabled. We 13135 * can't deal with that right now. 13136 */ 13137 mtx_lock(&ctl_softc->ctl_lock); 13138 13139 /* 13140 * If we don't have a LUN for this, just toss the sense 13141 * information. 13142 */ 13143 targ_lun = io->io_hdr.nexus.targ_lun; 13144 if (io->io_hdr.nexus.lun_map_fn != NULL) 13145 targ_lun = io->io_hdr.nexus.lun_map_fn(io->io_hdr.nexus.lun_map_arg, targ_lun); 13146 if ((targ_lun < CTL_MAX_LUNS) 13147 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13148 lun = ctl_softc->ctl_luns[targ_lun]; 13149 else 13150 goto bailout; 13151 13152 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13153 13154 mtx_lock(&lun->lun_lock); 13155 /* 13156 * Already have CA set for this LUN...toss the sense information. 13157 */ 13158 if (ctl_is_set(lun->have_ca, initidx)) { 13159 mtx_unlock(&lun->lun_lock); 13160 goto bailout; 13161 } 13162 13163 memcpy(&lun->pending_sense[initidx].sense, &io->scsiio.sense_data, 13164 ctl_min(sizeof(lun->pending_sense[initidx].sense), 13165 sizeof(io->scsiio.sense_data))); 13166 ctl_set_mask(lun->have_ca, initidx); 13167 mtx_unlock(&lun->lun_lock); 13168 13169bailout: 13170 mtx_unlock(&ctl_softc->ctl_lock); 13171 13172 ctl_free_io(io); 13173 13174 return (CTL_RETVAL_COMPLETE); 13175} 13176 13177/* 13178 * Primary command inlet from frontend ports. All SCSI and task I/O 13179 * requests must go through this function. 13180 */ 13181int 13182ctl_queue(union ctl_io *io) 13183{ 13184 struct ctl_softc *ctl_softc; 13185 13186 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13187 13188 ctl_softc = control_softc; 13189 13190#ifdef CTL_TIME_IO 13191 io->io_hdr.start_time = time_uptime; 13192 getbintime(&io->io_hdr.start_bt); 13193#endif /* CTL_TIME_IO */ 13194 13195 /* Map FE-specific LUN ID into global one. */ 13196 if (io->io_hdr.nexus.lun_map_fn != NULL) 13197 io->io_hdr.nexus.targ_mapped_lun = io->io_hdr.nexus.lun_map_fn( 13198 io->io_hdr.nexus.lun_map_arg, io->io_hdr.nexus.targ_lun); 13199 else 13200 io->io_hdr.nexus.targ_mapped_lun = io->io_hdr.nexus.targ_lun; 13201 13202 switch (io->io_hdr.io_type) { 13203 case CTL_IO_SCSI: 13204 ctl_enqueue_incoming(io); 13205 break; 13206 case CTL_IO_TASK: 13207 ctl_run_task(io); 13208 break; 13209 default: 13210 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13211 return (EINVAL); 13212 } 13213 13214 return (CTL_RETVAL_COMPLETE); 13215} 13216 13217#ifdef CTL_IO_DELAY 13218static void 13219ctl_done_timer_wakeup(void *arg) 13220{ 13221 union ctl_io *io; 13222 13223 io = (union ctl_io *)arg; 13224 ctl_done(io); 13225} 13226#endif /* CTL_IO_DELAY */ 13227 13228void 13229ctl_done(union ctl_io *io) 13230{ 13231 struct ctl_softc *ctl_softc; 13232 13233 ctl_softc = control_softc; 13234 13235 /* 13236 * Enable this to catch duplicate completion issues. 13237 */ 13238#if 0 13239 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13240 printf("%s: type %d msg %d cdb %x iptl: " 13241 "%d:%d:%d:%d tag 0x%04x " 13242 "flag %#x status %x\n", 13243 __func__, 13244 io->io_hdr.io_type, 13245 io->io_hdr.msg_type, 13246 io->scsiio.cdb[0], 13247 io->io_hdr.nexus.initid.id, 13248 io->io_hdr.nexus.targ_port, 13249 io->io_hdr.nexus.targ_target.id, 13250 io->io_hdr.nexus.targ_lun, 13251 (io->io_hdr.io_type == 13252 CTL_IO_TASK) ? 13253 io->taskio.tag_num : 13254 io->scsiio.tag_num, 13255 io->io_hdr.flags, 13256 io->io_hdr.status); 13257 } else 13258 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13259#endif 13260 13261 /* 13262 * This is an internal copy of an I/O, and should not go through 13263 * the normal done processing logic. 13264 */ 13265 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13266 return; 13267 13268 /* 13269 * We need to send a msg to the serializing shelf to finish the IO 13270 * as well. We don't send a finish message to the other shelf if 13271 * this is a task management command. Task management commands 13272 * aren't serialized in the OOA queue, but rather just executed on 13273 * both shelf controllers for commands that originated on that 13274 * controller. 13275 */ 13276 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13277 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13278 union ctl_ha_msg msg_io; 13279 13280 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13281 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13282 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13283 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13284 } 13285 /* continue on to finish IO */ 13286 } 13287#ifdef CTL_IO_DELAY 13288 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13289 struct ctl_lun *lun; 13290 13291 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13292 13293 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13294 } else { 13295 struct ctl_lun *lun; 13296 13297 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13298 13299 if ((lun != NULL) 13300 && (lun->delay_info.done_delay > 0)) { 13301 struct callout *callout; 13302 13303 callout = (struct callout *)&io->io_hdr.timer_bytes; 13304 callout_init(callout, /*mpsafe*/ 1); 13305 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13306 callout_reset(callout, 13307 lun->delay_info.done_delay * hz, 13308 ctl_done_timer_wakeup, io); 13309 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13310 lun->delay_info.done_delay = 0; 13311 return; 13312 } 13313 } 13314#endif /* CTL_IO_DELAY */ 13315 13316 ctl_enqueue_done(io); 13317} 13318 13319int 13320ctl_isc(struct ctl_scsiio *ctsio) 13321{ 13322 struct ctl_lun *lun; 13323 int retval; 13324 13325 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13326 13327 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13328 13329 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13330 13331 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13332 13333 return (retval); 13334} 13335 13336 13337static void 13338ctl_work_thread(void *arg) 13339{ 13340 struct ctl_thread *thr = (struct ctl_thread *)arg; 13341 struct ctl_softc *softc = thr->ctl_softc; 13342 union ctl_io *io; 13343 int retval; 13344 13345 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13346 13347 for (;;) { 13348 retval = 0; 13349 13350 /* 13351 * We handle the queues in this order: 13352 * - ISC 13353 * - done queue (to free up resources, unblock other commands) 13354 * - RtR queue 13355 * - incoming queue 13356 * 13357 * If those queues are empty, we break out of the loop and 13358 * go to sleep. 13359 */ 13360 mtx_lock(&thr->queue_lock); 13361 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13362 if (io != NULL) { 13363 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13364 mtx_unlock(&thr->queue_lock); 13365 ctl_handle_isc(io); 13366 continue; 13367 } 13368 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13369 if (io != NULL) { 13370 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13371 /* clear any blocked commands, call fe_done */ 13372 mtx_unlock(&thr->queue_lock); 13373 retval = ctl_process_done(io); 13374 continue; 13375 } 13376 if (!ctl_pause_rtr) { 13377 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13378 if (io != NULL) { 13379 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13380 mtx_unlock(&thr->queue_lock); 13381 retval = ctl_scsiio(&io->scsiio); 13382 if (retval != CTL_RETVAL_COMPLETE) 13383 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13384 continue; 13385 } 13386 } 13387 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13388 if (io != NULL) { 13389 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13390 mtx_unlock(&thr->queue_lock); 13391 ctl_scsiio_precheck(softc, &io->scsiio); 13392 continue; 13393 } 13394 13395 /* Sleep until we have something to do. */ 13396 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13397 } 13398} 13399 13400static void 13401ctl_lun_thread(void *arg) 13402{ 13403 struct ctl_softc *softc = (struct ctl_softc *)arg; 13404 struct ctl_be_lun *be_lun; 13405 int retval; 13406 13407 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13408 13409 for (;;) { 13410 retval = 0; 13411 mtx_lock(&softc->ctl_lock); 13412 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13413 if (be_lun != NULL) { 13414 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13415 mtx_unlock(&softc->ctl_lock); 13416 ctl_create_lun(be_lun); 13417 continue; 13418 } 13419 13420 /* Sleep until we have something to do. */ 13421 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13422 PDROP | PRIBIO, "-", 0); 13423 } 13424} 13425 13426static void 13427ctl_enqueue_incoming(union ctl_io *io) 13428{ 13429 struct ctl_softc *softc = control_softc; 13430 struct ctl_thread *thr; 13431 13432 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13433 mtx_lock(&thr->queue_lock); 13434 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13435 mtx_unlock(&thr->queue_lock); 13436 wakeup(thr); 13437} 13438 13439static void 13440ctl_enqueue_rtr(union ctl_io *io) 13441{ 13442 struct ctl_softc *softc = control_softc; 13443 struct ctl_thread *thr; 13444 13445 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13446 mtx_lock(&thr->queue_lock); 13447 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13448 mtx_unlock(&thr->queue_lock); 13449 wakeup(thr); 13450} 13451 13452static void 13453ctl_enqueue_done(union ctl_io *io) 13454{ 13455 struct ctl_softc *softc = control_softc; 13456 struct ctl_thread *thr; 13457 13458 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13459 mtx_lock(&thr->queue_lock); 13460 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13461 mtx_unlock(&thr->queue_lock); 13462 wakeup(thr); 13463} 13464 13465static void 13466ctl_enqueue_isc(union ctl_io *io) 13467{ 13468 struct ctl_softc *softc = control_softc; 13469 struct ctl_thread *thr; 13470 13471 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13472 mtx_lock(&thr->queue_lock); 13473 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13474 mtx_unlock(&thr->queue_lock); 13475 wakeup(thr); 13476} 13477 13478/* Initialization and failover */ 13479 13480void 13481ctl_init_isc_msg(void) 13482{ 13483 printf("CTL: Still calling this thing\n"); 13484} 13485 13486/* 13487 * Init component 13488 * Initializes component into configuration defined by bootMode 13489 * (see hasc-sv.c) 13490 * returns hasc_Status: 13491 * OK 13492 * ERROR - fatal error 13493 */ 13494static ctl_ha_comp_status 13495ctl_isc_init(struct ctl_ha_component *c) 13496{ 13497 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 13498 13499 c->status = ret; 13500 return ret; 13501} 13502 13503/* Start component 13504 * Starts component in state requested. If component starts successfully, 13505 * it must set its own state to the requestrd state 13506 * When requested state is HASC_STATE_HA, the component may refine it 13507 * by adding _SLAVE or _MASTER flags. 13508 * Currently allowed state transitions are: 13509 * UNKNOWN->HA - initial startup 13510 * UNKNOWN->SINGLE - initial startup when no parter detected 13511 * HA->SINGLE - failover 13512 * returns ctl_ha_comp_status: 13513 * OK - component successfully started in requested state 13514 * FAILED - could not start the requested state, failover may 13515 * be possible 13516 * ERROR - fatal error detected, no future startup possible 13517 */ 13518static ctl_ha_comp_status 13519ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 13520{ 13521 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 13522 13523 printf("%s: go\n", __func__); 13524 13525 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 13526 if (c->state == CTL_HA_STATE_UNKNOWN ) { 13527 ctl_is_single = 0; 13528 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 13529 != CTL_HA_STATUS_SUCCESS) { 13530 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 13531 ret = CTL_HA_COMP_STATUS_ERROR; 13532 } 13533 } else if (CTL_HA_STATE_IS_HA(c->state) 13534 && CTL_HA_STATE_IS_SINGLE(state)){ 13535 // HA->SINGLE transition 13536 ctl_failover(); 13537 ctl_is_single = 1; 13538 } else { 13539 printf("ctl_isc_start:Invalid state transition %X->%X\n", 13540 c->state, state); 13541 ret = CTL_HA_COMP_STATUS_ERROR; 13542 } 13543 if (CTL_HA_STATE_IS_SINGLE(state)) 13544 ctl_is_single = 1; 13545 13546 c->state = state; 13547 c->status = ret; 13548 return ret; 13549} 13550 13551/* 13552 * Quiesce component 13553 * The component must clear any error conditions (set status to OK) and 13554 * prepare itself to another Start call 13555 * returns ctl_ha_comp_status: 13556 * OK 13557 * ERROR 13558 */ 13559static ctl_ha_comp_status 13560ctl_isc_quiesce(struct ctl_ha_component *c) 13561{ 13562 int ret = CTL_HA_COMP_STATUS_OK; 13563 13564 ctl_pause_rtr = 1; 13565 c->status = ret; 13566 return ret; 13567} 13568 13569struct ctl_ha_component ctl_ha_component_ctlisc = 13570{ 13571 .name = "CTL ISC", 13572 .state = CTL_HA_STATE_UNKNOWN, 13573 .init = ctl_isc_init, 13574 .start = ctl_isc_start, 13575 .quiesce = ctl_isc_quiesce 13576}; 13577 13578/* 13579 * vim: ts=8 13580 */ 13581