ctl.c revision 268421
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 268421 2014-07-08 18:51:03Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/kernel.h> 50#include <sys/types.h> 51#include <sys/kthread.h> 52#include <sys/bio.h> 53#include <sys/fcntl.h> 54#include <sys/lock.h> 55#include <sys/module.h> 56#include <sys/mutex.h> 57#include <sys/condvar.h> 58#include <sys/malloc.h> 59#include <sys/conf.h> 60#include <sys/ioccom.h> 61#include <sys/queue.h> 62#include <sys/sbuf.h> 63#include <sys/smp.h> 64#include <sys/endian.h> 65#include <sys/sysctl.h> 66 67#include <cam/cam.h> 68#include <cam/scsi/scsi_all.h> 69#include <cam/scsi/scsi_da.h> 70#include <cam/ctl/ctl_io.h> 71#include <cam/ctl/ctl.h> 72#include <cam/ctl/ctl_frontend.h> 73#include <cam/ctl/ctl_frontend_internal.h> 74#include <cam/ctl/ctl_util.h> 75#include <cam/ctl/ctl_backend.h> 76#include <cam/ctl/ctl_ioctl.h> 77#include <cam/ctl/ctl_ha.h> 78#include <cam/ctl/ctl_private.h> 79#include <cam/ctl/ctl_debug.h> 80#include <cam/ctl/ctl_scsi_all.h> 81#include <cam/ctl/ctl_error.h> 82 83struct ctl_softc *control_softc = NULL; 84 85/* 86 * Size and alignment macros needed for Copan-specific HA hardware. These 87 * can go away when the HA code is re-written, and uses busdma for any 88 * hardware. 89 */ 90#define CTL_ALIGN_8B(target, source, type) \ 91 if (((uint32_t)source & 0x7) != 0) \ 92 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 93 else \ 94 target = (type)source; 95 96#define CTL_SIZE_8B(target, size) \ 97 if ((size & 0x7) != 0) \ 98 target = size + (0x8 - (size & 0x7)); \ 99 else \ 100 target = size; 101 102#define CTL_ALIGN_8B_MARGIN 16 103 104/* 105 * Template mode pages. 106 */ 107 108/* 109 * Note that these are default values only. The actual values will be 110 * filled in when the user does a mode sense. 111 */ 112static struct copan_power_subpage power_page_default = { 113 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 114 /*subpage*/ PWR_SUBPAGE_CODE, 115 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 116 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 117 /*page_version*/ PWR_VERSION, 118 /* total_luns */ 26, 119 /* max_active_luns*/ PWR_DFLT_MAX_LUNS, 120 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 121 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 122 0, 0, 0, 0, 0, 0} 123}; 124 125static struct copan_power_subpage power_page_changeable = { 126 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 127 /*subpage*/ PWR_SUBPAGE_CODE, 128 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 129 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 130 /*page_version*/ 0, 131 /* total_luns */ 0, 132 /* max_active_luns*/ 0, 133 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 134 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135 0, 0, 0, 0, 0, 0} 136}; 137 138static struct copan_aps_subpage aps_page_default = { 139 APS_PAGE_CODE | SMPH_SPF, //page_code 140 APS_SUBPAGE_CODE, //subpage 141 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 142 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 143 APS_VERSION, //page_version 144 0, //lock_active 145 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 147 0, 0, 0, 0, 0} //reserved 148}; 149 150static struct copan_aps_subpage aps_page_changeable = { 151 APS_PAGE_CODE | SMPH_SPF, //page_code 152 APS_SUBPAGE_CODE, //subpage 153 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 154 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 155 0, //page_version 156 0, //lock_active 157 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 158 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 159 0, 0, 0, 0, 0} //reserved 160}; 161 162static struct copan_debugconf_subpage debugconf_page_default = { 163 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 164 DBGCNF_SUBPAGE_CODE, /* subpage */ 165 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 166 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 167 DBGCNF_VERSION, /* page_version */ 168 {CTL_TIME_IO_DEFAULT_SECS>>8, 169 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 170}; 171 172static struct copan_debugconf_subpage debugconf_page_changeable = { 173 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 174 DBGCNF_SUBPAGE_CODE, /* subpage */ 175 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 176 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 177 0, /* page_version */ 178 {0xff,0xff}, /* ctl_time_io_secs */ 179}; 180 181static struct scsi_format_page format_page_default = { 182 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 183 /*page_length*/sizeof(struct scsi_format_page) - 2, 184 /*tracks_per_zone*/ {0, 0}, 185 /*alt_sectors_per_zone*/ {0, 0}, 186 /*alt_tracks_per_zone*/ {0, 0}, 187 /*alt_tracks_per_lun*/ {0, 0}, 188 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 189 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 190 /*bytes_per_sector*/ {0, 0}, 191 /*interleave*/ {0, 0}, 192 /*track_skew*/ {0, 0}, 193 /*cylinder_skew*/ {0, 0}, 194 /*flags*/ SFP_HSEC, 195 /*reserved*/ {0, 0, 0} 196}; 197 198static struct scsi_format_page format_page_changeable = { 199 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 200 /*page_length*/sizeof(struct scsi_format_page) - 2, 201 /*tracks_per_zone*/ {0, 0}, 202 /*alt_sectors_per_zone*/ {0, 0}, 203 /*alt_tracks_per_zone*/ {0, 0}, 204 /*alt_tracks_per_lun*/ {0, 0}, 205 /*sectors_per_track*/ {0, 0}, 206 /*bytes_per_sector*/ {0, 0}, 207 /*interleave*/ {0, 0}, 208 /*track_skew*/ {0, 0}, 209 /*cylinder_skew*/ {0, 0}, 210 /*flags*/ 0, 211 /*reserved*/ {0, 0, 0} 212}; 213 214static struct scsi_rigid_disk_page rigid_disk_page_default = { 215 /*page_code*/SMS_RIGID_DISK_PAGE, 216 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 217 /*cylinders*/ {0, 0, 0}, 218 /*heads*/ CTL_DEFAULT_HEADS, 219 /*start_write_precomp*/ {0, 0, 0}, 220 /*start_reduced_current*/ {0, 0, 0}, 221 /*step_rate*/ {0, 0}, 222 /*landing_zone_cylinder*/ {0, 0, 0}, 223 /*rpl*/ SRDP_RPL_DISABLED, 224 /*rotational_offset*/ 0, 225 /*reserved1*/ 0, 226 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 227 CTL_DEFAULT_ROTATION_RATE & 0xff}, 228 /*reserved2*/ {0, 0} 229}; 230 231static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 232 /*page_code*/SMS_RIGID_DISK_PAGE, 233 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 234 /*cylinders*/ {0, 0, 0}, 235 /*heads*/ 0, 236 /*start_write_precomp*/ {0, 0, 0}, 237 /*start_reduced_current*/ {0, 0, 0}, 238 /*step_rate*/ {0, 0}, 239 /*landing_zone_cylinder*/ {0, 0, 0}, 240 /*rpl*/ 0, 241 /*rotational_offset*/ 0, 242 /*reserved1*/ 0, 243 /*rotation_rate*/ {0, 0}, 244 /*reserved2*/ {0, 0} 245}; 246 247static struct scsi_caching_page caching_page_default = { 248 /*page_code*/SMS_CACHING_PAGE, 249 /*page_length*/sizeof(struct scsi_caching_page) - 2, 250 /*flags1*/ SCP_DISC | SCP_WCE, 251 /*ret_priority*/ 0, 252 /*disable_pf_transfer_len*/ {0xff, 0xff}, 253 /*min_prefetch*/ {0, 0}, 254 /*max_prefetch*/ {0xff, 0xff}, 255 /*max_pf_ceiling*/ {0xff, 0xff}, 256 /*flags2*/ 0, 257 /*cache_segments*/ 0, 258 /*cache_seg_size*/ {0, 0}, 259 /*reserved*/ 0, 260 /*non_cache_seg_size*/ {0, 0, 0} 261}; 262 263static struct scsi_caching_page caching_page_changeable = { 264 /*page_code*/SMS_CACHING_PAGE, 265 /*page_length*/sizeof(struct scsi_caching_page) - 2, 266 /*flags1*/ 0, 267 /*ret_priority*/ 0, 268 /*disable_pf_transfer_len*/ {0, 0}, 269 /*min_prefetch*/ {0, 0}, 270 /*max_prefetch*/ {0, 0}, 271 /*max_pf_ceiling*/ {0, 0}, 272 /*flags2*/ 0, 273 /*cache_segments*/ 0, 274 /*cache_seg_size*/ {0, 0}, 275 /*reserved*/ 0, 276 /*non_cache_seg_size*/ {0, 0, 0} 277}; 278 279static struct scsi_control_page control_page_default = { 280 /*page_code*/SMS_CONTROL_MODE_PAGE, 281 /*page_length*/sizeof(struct scsi_control_page) - 2, 282 /*rlec*/0, 283 /*queue_flags*/0, 284 /*eca_and_aen*/0, 285 /*flags4*/SCP_TAS, 286 /*aen_holdoff_period*/{0, 0}, 287 /*busy_timeout_period*/{0, 0}, 288 /*extended_selftest_completion_time*/{0, 0} 289}; 290 291static struct scsi_control_page control_page_changeable = { 292 /*page_code*/SMS_CONTROL_MODE_PAGE, 293 /*page_length*/sizeof(struct scsi_control_page) - 2, 294 /*rlec*/SCP_DSENSE, 295 /*queue_flags*/0, 296 /*eca_and_aen*/0, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301}; 302 303 304/* 305 * XXX KDM move these into the softc. 306 */ 307static int rcv_sync_msg; 308static int persis_offset; 309static uint8_t ctl_pause_rtr; 310static int ctl_is_single = 1; 311static int index_to_aps_page; 312 313SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314static int worker_threads = -1; 315SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 316 &worker_threads, 1, "Number of worker threads"); 317static int verbose = 0; 318SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 319 &verbose, 0, "Show SCSI errors returned to initiator"); 320 321/* 322 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 323 * SCSI Ports (0x88), Block limits (0xB0) and 324 * Logical Block Provisioning (0xB2) 325 */ 326#define SCSI_EVPD_NUM_SUPPORTED_PAGES 6 327 328static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 329 int param); 330static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 331static int ctl_init(void); 332void ctl_shutdown(void); 333static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 334static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 335static void ctl_ioctl_online(void *arg); 336static void ctl_ioctl_offline(void *arg); 337static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 338static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 339static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 340static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 341static int ctl_ioctl_submit_wait(union ctl_io *io); 342static void ctl_ioctl_datamove(union ctl_io *io); 343static void ctl_ioctl_done(union ctl_io *io); 344static void ctl_ioctl_hard_startstop_callback(void *arg, 345 struct cfi_metatask *metatask); 346static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 347static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 348 struct ctl_ooa *ooa_hdr, 349 struct ctl_ooa_entry *kern_entries); 350static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 351 struct thread *td); 352uint32_t ctl_get_resindex(struct ctl_nexus *nexus); 353uint32_t ctl_port_idx(int port_num); 354static uint32_t ctl_map_lun(int port_num, uint32_t lun); 355static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 356#ifdef unused 357static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 358 uint32_t targ_target, uint32_t targ_lun, 359 int can_wait); 360static void ctl_kfree_io(union ctl_io *io); 361#endif /* unused */ 362static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 363 struct ctl_be_lun *be_lun, struct ctl_id target_id); 364static int ctl_free_lun(struct ctl_lun *lun); 365static void ctl_create_lun(struct ctl_be_lun *be_lun); 366/** 367static void ctl_failover_change_pages(struct ctl_softc *softc, 368 struct ctl_scsiio *ctsio, int master); 369**/ 370 371static int ctl_do_mode_select(union ctl_io *io); 372static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 373 uint64_t res_key, uint64_t sa_res_key, 374 uint8_t type, uint32_t residx, 375 struct ctl_scsiio *ctsio, 376 struct scsi_per_res_out *cdb, 377 struct scsi_per_res_out_parms* param); 378static void ctl_pro_preempt_other(struct ctl_lun *lun, 379 union ctl_ha_msg *msg); 380static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 381static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 382static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 383static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 384static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 385 int alloc_len); 386static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 387 int alloc_len); 388static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 389static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 390static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 391static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 392static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 393static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 394 union ctl_io *ooa_io); 395static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 396 union ctl_io *starting_io); 397static int ctl_check_blocked(struct ctl_lun *lun); 398static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 399 struct ctl_lun *lun, 400 const struct ctl_cmd_entry *entry, 401 struct ctl_scsiio *ctsio); 402//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 403static void ctl_failover(void); 404static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 405 struct ctl_scsiio *ctsio); 406static int ctl_scsiio(struct ctl_scsiio *ctsio); 407 408static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 409static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 410 ctl_ua_type ua_type); 411static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 412 ctl_ua_type ua_type); 413static int ctl_abort_task(union ctl_io *io); 414static int ctl_abort_task_set(union ctl_io *io); 415static int ctl_i_t_nexus_reset(union ctl_io *io); 416static void ctl_run_task(union ctl_io *io); 417#ifdef CTL_IO_DELAY 418static void ctl_datamove_timer_wakeup(void *arg); 419static void ctl_done_timer_wakeup(void *arg); 420#endif /* CTL_IO_DELAY */ 421 422static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 423static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 424static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 425static void ctl_datamove_remote_write(union ctl_io *io); 426static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 427static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 428static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 429static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 430 ctl_ha_dt_cb callback); 431static void ctl_datamove_remote_read(union ctl_io *io); 432static void ctl_datamove_remote(union ctl_io *io); 433static int ctl_process_done(union ctl_io *io); 434static void ctl_lun_thread(void *arg); 435static void ctl_work_thread(void *arg); 436static void ctl_enqueue_incoming(union ctl_io *io); 437static void ctl_enqueue_rtr(union ctl_io *io); 438static void ctl_enqueue_done(union ctl_io *io); 439static void ctl_enqueue_isc(union ctl_io *io); 440static const struct ctl_cmd_entry * 441 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 442static const struct ctl_cmd_entry * 443 ctl_validate_command(struct ctl_scsiio *ctsio); 444static int ctl_cmd_applicable(uint8_t lun_type, 445 const struct ctl_cmd_entry *entry); 446 447/* 448 * Load the serialization table. This isn't very pretty, but is probably 449 * the easiest way to do it. 450 */ 451#include "ctl_ser_table.c" 452 453/* 454 * We only need to define open, close and ioctl routines for this driver. 455 */ 456static struct cdevsw ctl_cdevsw = { 457 .d_version = D_VERSION, 458 .d_flags = 0, 459 .d_open = ctl_open, 460 .d_close = ctl_close, 461 .d_ioctl = ctl_ioctl, 462 .d_name = "ctl", 463}; 464 465 466MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 467MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 468 469static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 470 471static moduledata_t ctl_moduledata = { 472 "ctl", 473 ctl_module_event_handler, 474 NULL 475}; 476 477DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 478MODULE_VERSION(ctl, 1); 479 480static struct ctl_frontend ioctl_frontend = 481{ 482 .name = "ioctl", 483}; 484 485static void 486ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 487 union ctl_ha_msg *msg_info) 488{ 489 struct ctl_scsiio *ctsio; 490 491 if (msg_info->hdr.original_sc == NULL) { 492 printf("%s: original_sc == NULL!\n", __func__); 493 /* XXX KDM now what? */ 494 return; 495 } 496 497 ctsio = &msg_info->hdr.original_sc->scsiio; 498 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 499 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 500 ctsio->io_hdr.status = msg_info->hdr.status; 501 ctsio->scsi_status = msg_info->scsi.scsi_status; 502 ctsio->sense_len = msg_info->scsi.sense_len; 503 ctsio->sense_residual = msg_info->scsi.sense_residual; 504 ctsio->residual = msg_info->scsi.residual; 505 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 506 sizeof(ctsio->sense_data)); 507 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 508 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 509 ctl_enqueue_isc((union ctl_io *)ctsio); 510} 511 512static void 513ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 514 union ctl_ha_msg *msg_info) 515{ 516 struct ctl_scsiio *ctsio; 517 518 if (msg_info->hdr.serializing_sc == NULL) { 519 printf("%s: serializing_sc == NULL!\n", __func__); 520 /* XXX KDM now what? */ 521 return; 522 } 523 524 ctsio = &msg_info->hdr.serializing_sc->scsiio; 525#if 0 526 /* 527 * Attempt to catch the situation where an I/O has 528 * been freed, and we're using it again. 529 */ 530 if (ctsio->io_hdr.io_type == 0xff) { 531 union ctl_io *tmp_io; 532 tmp_io = (union ctl_io *)ctsio; 533 printf("%s: %p use after free!\n", __func__, 534 ctsio); 535 printf("%s: type %d msg %d cdb %x iptl: " 536 "%d:%d:%d:%d tag 0x%04x " 537 "flag %#x status %x\n", 538 __func__, 539 tmp_io->io_hdr.io_type, 540 tmp_io->io_hdr.msg_type, 541 tmp_io->scsiio.cdb[0], 542 tmp_io->io_hdr.nexus.initid.id, 543 tmp_io->io_hdr.nexus.targ_port, 544 tmp_io->io_hdr.nexus.targ_target.id, 545 tmp_io->io_hdr.nexus.targ_lun, 546 (tmp_io->io_hdr.io_type == 547 CTL_IO_TASK) ? 548 tmp_io->taskio.tag_num : 549 tmp_io->scsiio.tag_num, 550 tmp_io->io_hdr.flags, 551 tmp_io->io_hdr.status); 552 } 553#endif 554 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 555 ctl_enqueue_isc((union ctl_io *)ctsio); 556} 557 558/* 559 * ISC (Inter Shelf Communication) event handler. Events from the HA 560 * subsystem come in here. 561 */ 562static void 563ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 564{ 565 struct ctl_softc *ctl_softc; 566 union ctl_io *io; 567 struct ctl_prio *presio; 568 ctl_ha_status isc_status; 569 570 ctl_softc = control_softc; 571 io = NULL; 572 573 574#if 0 575 printf("CTL: Isc Msg event %d\n", event); 576#endif 577 if (event == CTL_HA_EVT_MSG_RECV) { 578 union ctl_ha_msg msg_info; 579 580 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 581 sizeof(msg_info), /*wait*/ 0); 582#if 0 583 printf("CTL: msg_type %d\n", msg_info.msg_type); 584#endif 585 if (isc_status != 0) { 586 printf("Error receiving message, status = %d\n", 587 isc_status); 588 return; 589 } 590 591 switch (msg_info.hdr.msg_type) { 592 case CTL_MSG_SERIALIZE: 593#if 0 594 printf("Serialize\n"); 595#endif 596 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 597 if (io == NULL) { 598 printf("ctl_isc_event_handler: can't allocate " 599 "ctl_io!\n"); 600 /* Bad Juju */ 601 /* Need to set busy and send msg back */ 602 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 603 msg_info.hdr.status = CTL_SCSI_ERROR; 604 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 605 msg_info.scsi.sense_len = 0; 606 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 607 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 608 } 609 goto bailout; 610 } 611 ctl_zero_io(io); 612 // populate ctsio from msg_info 613 io->io_hdr.io_type = CTL_IO_SCSI; 614 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 615 io->io_hdr.original_sc = msg_info.hdr.original_sc; 616#if 0 617 printf("pOrig %x\n", (int)msg_info.original_sc); 618#endif 619 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 620 CTL_FLAG_IO_ACTIVE; 621 /* 622 * If we're in serialization-only mode, we don't 623 * want to go through full done processing. Thus 624 * the COPY flag. 625 * 626 * XXX KDM add another flag that is more specific. 627 */ 628 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 629 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 630 io->io_hdr.nexus = msg_info.hdr.nexus; 631#if 0 632 printf("targ %d, port %d, iid %d, lun %d\n", 633 io->io_hdr.nexus.targ_target.id, 634 io->io_hdr.nexus.targ_port, 635 io->io_hdr.nexus.initid.id, 636 io->io_hdr.nexus.targ_lun); 637#endif 638 io->scsiio.tag_num = msg_info.scsi.tag_num; 639 io->scsiio.tag_type = msg_info.scsi.tag_type; 640 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 641 CTL_MAX_CDBLEN); 642 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 643 const struct ctl_cmd_entry *entry; 644 645 entry = ctl_get_cmd_entry(&io->scsiio); 646 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 647 io->io_hdr.flags |= 648 entry->flags & CTL_FLAG_DATA_MASK; 649 } 650 ctl_enqueue_isc(io); 651 break; 652 653 /* Performed on the Originating SC, XFER mode only */ 654 case CTL_MSG_DATAMOVE: { 655 struct ctl_sg_entry *sgl; 656 int i, j; 657 658 io = msg_info.hdr.original_sc; 659 if (io == NULL) { 660 printf("%s: original_sc == NULL!\n", __func__); 661 /* XXX KDM do something here */ 662 break; 663 } 664 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 665 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 666 /* 667 * Keep track of this, we need to send it back over 668 * when the datamove is complete. 669 */ 670 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 671 672 if (msg_info.dt.sg_sequence == 0) { 673 /* 674 * XXX KDM we use the preallocated S/G list 675 * here, but we'll need to change this to 676 * dynamic allocation if we need larger S/G 677 * lists. 678 */ 679 if (msg_info.dt.kern_sg_entries > 680 sizeof(io->io_hdr.remote_sglist) / 681 sizeof(io->io_hdr.remote_sglist[0])) { 682 printf("%s: number of S/G entries " 683 "needed %u > allocated num %zd\n", 684 __func__, 685 msg_info.dt.kern_sg_entries, 686 sizeof(io->io_hdr.remote_sglist)/ 687 sizeof(io->io_hdr.remote_sglist[0])); 688 689 /* 690 * XXX KDM send a message back to 691 * the other side to shut down the 692 * DMA. The error will come back 693 * through via the normal channel. 694 */ 695 break; 696 } 697 sgl = io->io_hdr.remote_sglist; 698 memset(sgl, 0, 699 sizeof(io->io_hdr.remote_sglist)); 700 701 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 702 703 io->scsiio.kern_sg_entries = 704 msg_info.dt.kern_sg_entries; 705 io->scsiio.rem_sg_entries = 706 msg_info.dt.kern_sg_entries; 707 io->scsiio.kern_data_len = 708 msg_info.dt.kern_data_len; 709 io->scsiio.kern_total_len = 710 msg_info.dt.kern_total_len; 711 io->scsiio.kern_data_resid = 712 msg_info.dt.kern_data_resid; 713 io->scsiio.kern_rel_offset = 714 msg_info.dt.kern_rel_offset; 715 /* 716 * Clear out per-DMA flags. 717 */ 718 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 719 /* 720 * Add per-DMA flags that are set for this 721 * particular DMA request. 722 */ 723 io->io_hdr.flags |= msg_info.dt.flags & 724 CTL_FLAG_RDMA_MASK; 725 } else 726 sgl = (struct ctl_sg_entry *) 727 io->scsiio.kern_data_ptr; 728 729 for (i = msg_info.dt.sent_sg_entries, j = 0; 730 i < (msg_info.dt.sent_sg_entries + 731 msg_info.dt.cur_sg_entries); i++, j++) { 732 sgl[i].addr = msg_info.dt.sg_list[j].addr; 733 sgl[i].len = msg_info.dt.sg_list[j].len; 734 735#if 0 736 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 737 __func__, 738 msg_info.dt.sg_list[j].addr, 739 msg_info.dt.sg_list[j].len, 740 sgl[i].addr, sgl[i].len, j, i); 741#endif 742 } 743#if 0 744 memcpy(&sgl[msg_info.dt.sent_sg_entries], 745 msg_info.dt.sg_list, 746 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 747#endif 748 749 /* 750 * If this is the last piece of the I/O, we've got 751 * the full S/G list. Queue processing in the thread. 752 * Otherwise wait for the next piece. 753 */ 754 if (msg_info.dt.sg_last != 0) 755 ctl_enqueue_isc(io); 756 break; 757 } 758 /* Performed on the Serializing (primary) SC, XFER mode only */ 759 case CTL_MSG_DATAMOVE_DONE: { 760 if (msg_info.hdr.serializing_sc == NULL) { 761 printf("%s: serializing_sc == NULL!\n", 762 __func__); 763 /* XXX KDM now what? */ 764 break; 765 } 766 /* 767 * We grab the sense information here in case 768 * there was a failure, so we can return status 769 * back to the initiator. 770 */ 771 io = msg_info.hdr.serializing_sc; 772 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 773 io->io_hdr.status = msg_info.hdr.status; 774 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 775 io->scsiio.sense_len = msg_info.scsi.sense_len; 776 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 777 io->io_hdr.port_status = msg_info.scsi.fetd_status; 778 io->scsiio.residual = msg_info.scsi.residual; 779 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 780 sizeof(io->scsiio.sense_data)); 781 ctl_enqueue_isc(io); 782 break; 783 } 784 785 /* Preformed on Originating SC, SER_ONLY mode */ 786 case CTL_MSG_R2R: 787 io = msg_info.hdr.original_sc; 788 if (io == NULL) { 789 printf("%s: Major Bummer\n", __func__); 790 return; 791 } else { 792#if 0 793 printf("pOrig %x\n",(int) ctsio); 794#endif 795 } 796 io->io_hdr.msg_type = CTL_MSG_R2R; 797 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 798 ctl_enqueue_isc(io); 799 break; 800 801 /* 802 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 803 * mode. 804 * Performed on the Originating (i.e. secondary) SC in XFER 805 * mode 806 */ 807 case CTL_MSG_FINISH_IO: 808 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 809 ctl_isc_handler_finish_xfer(ctl_softc, 810 &msg_info); 811 else 812 ctl_isc_handler_finish_ser_only(ctl_softc, 813 &msg_info); 814 break; 815 816 /* Preformed on Originating SC */ 817 case CTL_MSG_BAD_JUJU: 818 io = msg_info.hdr.original_sc; 819 if (io == NULL) { 820 printf("%s: Bad JUJU!, original_sc is NULL!\n", 821 __func__); 822 break; 823 } 824 ctl_copy_sense_data(&msg_info, io); 825 /* 826 * IO should have already been cleaned up on other 827 * SC so clear this flag so we won't send a message 828 * back to finish the IO there. 829 */ 830 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 831 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 832 833 /* io = msg_info.hdr.serializing_sc; */ 834 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 835 ctl_enqueue_isc(io); 836 break; 837 838 /* Handle resets sent from the other side */ 839 case CTL_MSG_MANAGE_TASKS: { 840 struct ctl_taskio *taskio; 841 taskio = (struct ctl_taskio *)ctl_alloc_io( 842 (void *)ctl_softc->othersc_pool); 843 if (taskio == NULL) { 844 printf("ctl_isc_event_handler: can't allocate " 845 "ctl_io!\n"); 846 /* Bad Juju */ 847 /* should I just call the proper reset func 848 here??? */ 849 goto bailout; 850 } 851 ctl_zero_io((union ctl_io *)taskio); 852 taskio->io_hdr.io_type = CTL_IO_TASK; 853 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 854 taskio->io_hdr.nexus = msg_info.hdr.nexus; 855 taskio->task_action = msg_info.task.task_action; 856 taskio->tag_num = msg_info.task.tag_num; 857 taskio->tag_type = msg_info.task.tag_type; 858#ifdef CTL_TIME_IO 859 taskio->io_hdr.start_time = time_uptime; 860 getbintime(&taskio->io_hdr.start_bt); 861#if 0 862 cs_prof_gettime(&taskio->io_hdr.start_ticks); 863#endif 864#endif /* CTL_TIME_IO */ 865 ctl_run_task((union ctl_io *)taskio); 866 break; 867 } 868 /* Persistent Reserve action which needs attention */ 869 case CTL_MSG_PERS_ACTION: 870 presio = (struct ctl_prio *)ctl_alloc_io( 871 (void *)ctl_softc->othersc_pool); 872 if (presio == NULL) { 873 printf("ctl_isc_event_handler: can't allocate " 874 "ctl_io!\n"); 875 /* Bad Juju */ 876 /* Need to set busy and send msg back */ 877 goto bailout; 878 } 879 ctl_zero_io((union ctl_io *)presio); 880 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 881 presio->pr_msg = msg_info.pr; 882 ctl_enqueue_isc((union ctl_io *)presio); 883 break; 884 case CTL_MSG_SYNC_FE: 885 rcv_sync_msg = 1; 886 break; 887 case CTL_MSG_APS_LOCK: { 888 // It's quicker to execute this then to 889 // queue it. 890 struct ctl_lun *lun; 891 struct ctl_page_index *page_index; 892 struct copan_aps_subpage *current_sp; 893 uint32_t targ_lun; 894 895 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 896 lun = ctl_softc->ctl_luns[targ_lun]; 897 mtx_lock(&lun->lun_lock); 898 page_index = &lun->mode_pages.index[index_to_aps_page]; 899 current_sp = (struct copan_aps_subpage *) 900 (page_index->page_data + 901 (page_index->page_len * CTL_PAGE_CURRENT)); 902 903 current_sp->lock_active = msg_info.aps.lock_flag; 904 mtx_unlock(&lun->lun_lock); 905 break; 906 } 907 default: 908 printf("How did I get here?\n"); 909 } 910 } else if (event == CTL_HA_EVT_MSG_SENT) { 911 if (param != CTL_HA_STATUS_SUCCESS) { 912 printf("Bad status from ctl_ha_msg_send status %d\n", 913 param); 914 } 915 return; 916 } else if (event == CTL_HA_EVT_DISCONNECT) { 917 printf("CTL: Got a disconnect from Isc\n"); 918 return; 919 } else { 920 printf("ctl_isc_event_handler: Unknown event %d\n", event); 921 return; 922 } 923 924bailout: 925 return; 926} 927 928static void 929ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 930{ 931 struct scsi_sense_data *sense; 932 933 sense = &dest->scsiio.sense_data; 934 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 935 dest->scsiio.scsi_status = src->scsi.scsi_status; 936 dest->scsiio.sense_len = src->scsi.sense_len; 937 dest->io_hdr.status = src->hdr.status; 938} 939 940static int 941ctl_init(void) 942{ 943 struct ctl_softc *softc; 944 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 945 struct ctl_port *port; 946 uint8_t sc_id =0; 947 int i, error, retval; 948 //int isc_retval; 949 950 retval = 0; 951 ctl_pause_rtr = 0; 952 rcv_sync_msg = 0; 953 954 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 955 M_WAITOK | M_ZERO); 956 softc = control_softc; 957 958 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 959 "cam/ctl"); 960 961 softc->dev->si_drv1 = softc; 962 963 /* 964 * By default, return a "bad LUN" peripheral qualifier for unknown 965 * LUNs. The user can override this default using the tunable or 966 * sysctl. See the comment in ctl_inquiry_std() for more details. 967 */ 968 softc->inquiry_pq_no_lun = 1; 969 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 970 &softc->inquiry_pq_no_lun); 971 sysctl_ctx_init(&softc->sysctl_ctx); 972 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 973 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 974 CTLFLAG_RD, 0, "CAM Target Layer"); 975 976 if (softc->sysctl_tree == NULL) { 977 printf("%s: unable to allocate sysctl tree\n", __func__); 978 destroy_dev(softc->dev); 979 free(control_softc, M_DEVBUF); 980 control_softc = NULL; 981 return (ENOMEM); 982 } 983 984 SYSCTL_ADD_INT(&softc->sysctl_ctx, 985 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 986 "inquiry_pq_no_lun", CTLFLAG_RW, 987 &softc->inquiry_pq_no_lun, 0, 988 "Report no lun possible for invalid LUNs"); 989 990 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 991 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 992 softc->open_count = 0; 993 994 /* 995 * Default to actually sending a SYNCHRONIZE CACHE command down to 996 * the drive. 997 */ 998 softc->flags = CTL_FLAG_REAL_SYNC; 999 1000 /* 1001 * In Copan's HA scheme, the "master" and "slave" roles are 1002 * figured out through the slot the controller is in. Although it 1003 * is an active/active system, someone has to be in charge. 1004 */ 1005#ifdef NEEDTOPORT 1006 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1007#endif 1008 1009 if (sc_id == 0) { 1010 softc->flags |= CTL_FLAG_MASTER_SHELF; 1011 persis_offset = 0; 1012 } else 1013 persis_offset = CTL_MAX_INITIATORS; 1014 1015 /* 1016 * XXX KDM need to figure out where we want to get our target ID 1017 * and WWID. Is it different on each port? 1018 */ 1019 softc->target.id = 0; 1020 softc->target.wwid[0] = 0x12345678; 1021 softc->target.wwid[1] = 0x87654321; 1022 STAILQ_INIT(&softc->lun_list); 1023 STAILQ_INIT(&softc->pending_lun_queue); 1024 STAILQ_INIT(&softc->fe_list); 1025 STAILQ_INIT(&softc->port_list); 1026 STAILQ_INIT(&softc->be_list); 1027 STAILQ_INIT(&softc->io_pools); 1028 1029 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1030 &internal_pool)!= 0){ 1031 printf("ctl: can't allocate %d entry internal pool, " 1032 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1033 return (ENOMEM); 1034 } 1035 1036 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1037 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1038 printf("ctl: can't allocate %d entry emergency pool, " 1039 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1040 ctl_pool_free(internal_pool); 1041 return (ENOMEM); 1042 } 1043 1044 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1045 &other_pool) != 0) 1046 { 1047 printf("ctl: can't allocate %d entry other SC pool, " 1048 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1049 ctl_pool_free(internal_pool); 1050 ctl_pool_free(emergency_pool); 1051 return (ENOMEM); 1052 } 1053 1054 softc->internal_pool = internal_pool; 1055 softc->emergency_pool = emergency_pool; 1056 softc->othersc_pool = other_pool; 1057 1058 if (worker_threads <= 0) 1059 worker_threads = max(1, mp_ncpus / 4); 1060 if (worker_threads > CTL_MAX_THREADS) 1061 worker_threads = CTL_MAX_THREADS; 1062 1063 for (i = 0; i < worker_threads; i++) { 1064 struct ctl_thread *thr = &softc->threads[i]; 1065 1066 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1067 thr->ctl_softc = softc; 1068 STAILQ_INIT(&thr->incoming_queue); 1069 STAILQ_INIT(&thr->rtr_queue); 1070 STAILQ_INIT(&thr->done_queue); 1071 STAILQ_INIT(&thr->isc_queue); 1072 1073 error = kproc_kthread_add(ctl_work_thread, thr, 1074 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1075 if (error != 0) { 1076 printf("error creating CTL work thread!\n"); 1077 ctl_pool_free(internal_pool); 1078 ctl_pool_free(emergency_pool); 1079 ctl_pool_free(other_pool); 1080 return (error); 1081 } 1082 } 1083 error = kproc_kthread_add(ctl_lun_thread, softc, 1084 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1085 if (error != 0) { 1086 printf("error creating CTL lun thread!\n"); 1087 ctl_pool_free(internal_pool); 1088 ctl_pool_free(emergency_pool); 1089 ctl_pool_free(other_pool); 1090 return (error); 1091 } 1092 if (bootverbose) 1093 printf("ctl: CAM Target Layer loaded\n"); 1094 1095 /* 1096 * Initialize the ioctl front end. 1097 */ 1098 ctl_frontend_register(&ioctl_frontend); 1099 port = &softc->ioctl_info.port; 1100 port->frontend = &ioctl_frontend; 1101 sprintf(softc->ioctl_info.port_name, "ioctl"); 1102 port->port_type = CTL_PORT_IOCTL; 1103 port->num_requested_ctl_io = 100; 1104 port->port_name = softc->ioctl_info.port_name; 1105 port->port_online = ctl_ioctl_online; 1106 port->port_offline = ctl_ioctl_offline; 1107 port->onoff_arg = &softc->ioctl_info; 1108 port->lun_enable = ctl_ioctl_lun_enable; 1109 port->lun_disable = ctl_ioctl_lun_disable; 1110 port->targ_lun_arg = &softc->ioctl_info; 1111 port->fe_datamove = ctl_ioctl_datamove; 1112 port->fe_done = ctl_ioctl_done; 1113 port->max_targets = 15; 1114 port->max_target_id = 15; 1115 1116 if (ctl_port_register(&softc->ioctl_info.port, 1117 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1118 printf("ctl: ioctl front end registration failed, will " 1119 "continue anyway\n"); 1120 } 1121 1122#ifdef CTL_IO_DELAY 1123 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1124 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1125 sizeof(struct callout), CTL_TIMER_BYTES); 1126 return (EINVAL); 1127 } 1128#endif /* CTL_IO_DELAY */ 1129 1130 return (0); 1131} 1132 1133void 1134ctl_shutdown(void) 1135{ 1136 struct ctl_softc *softc; 1137 struct ctl_lun *lun, *next_lun; 1138 struct ctl_io_pool *pool; 1139 1140 softc = (struct ctl_softc *)control_softc; 1141 1142 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1143 printf("ctl: ioctl front end deregistration failed\n"); 1144 1145 mtx_lock(&softc->ctl_lock); 1146 1147 /* 1148 * Free up each LUN. 1149 */ 1150 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1151 next_lun = STAILQ_NEXT(lun, links); 1152 ctl_free_lun(lun); 1153 } 1154 1155 mtx_unlock(&softc->ctl_lock); 1156 1157 ctl_frontend_deregister(&ioctl_frontend); 1158 1159 /* 1160 * This will rip the rug out from under any FETDs or anyone else 1161 * that has a pool allocated. Since we increment our module 1162 * refcount any time someone outside the main CTL module allocates 1163 * a pool, we shouldn't have any problems here. The user won't be 1164 * able to unload the CTL module until client modules have 1165 * successfully unloaded. 1166 */ 1167 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1168 ctl_pool_free(pool); 1169 1170#if 0 1171 ctl_shutdown_thread(softc->work_thread); 1172 mtx_destroy(&softc->queue_lock); 1173#endif 1174 1175 mtx_destroy(&softc->pool_lock); 1176 mtx_destroy(&softc->ctl_lock); 1177 1178 destroy_dev(softc->dev); 1179 1180 sysctl_ctx_free(&softc->sysctl_ctx); 1181 1182 free(control_softc, M_DEVBUF); 1183 control_softc = NULL; 1184 1185 if (bootverbose) 1186 printf("ctl: CAM Target Layer unloaded\n"); 1187} 1188 1189static int 1190ctl_module_event_handler(module_t mod, int what, void *arg) 1191{ 1192 1193 switch (what) { 1194 case MOD_LOAD: 1195 return (ctl_init()); 1196 case MOD_UNLOAD: 1197 return (EBUSY); 1198 default: 1199 return (EOPNOTSUPP); 1200 } 1201} 1202 1203/* 1204 * XXX KDM should we do some access checks here? Bump a reference count to 1205 * prevent a CTL module from being unloaded while someone has it open? 1206 */ 1207static int 1208ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1209{ 1210 return (0); 1211} 1212 1213static int 1214ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1215{ 1216 return (0); 1217} 1218 1219int 1220ctl_port_enable(ctl_port_type port_type) 1221{ 1222 struct ctl_softc *softc; 1223 struct ctl_port *port; 1224 1225 if (ctl_is_single == 0) { 1226 union ctl_ha_msg msg_info; 1227 int isc_retval; 1228 1229#if 0 1230 printf("%s: HA mode, synchronizing frontend enable\n", 1231 __func__); 1232#endif 1233 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1234 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1235 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1236 printf("Sync msg send error retval %d\n", isc_retval); 1237 } 1238 if (!rcv_sync_msg) { 1239 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1240 sizeof(msg_info), 1); 1241 } 1242#if 0 1243 printf("CTL:Frontend Enable\n"); 1244 } else { 1245 printf("%s: single mode, skipping frontend synchronization\n", 1246 __func__); 1247#endif 1248 } 1249 1250 softc = control_softc; 1251 1252 STAILQ_FOREACH(port, &softc->port_list, links) { 1253 if (port_type & port->port_type) 1254 { 1255#if 0 1256 printf("port %d\n", port->targ_port); 1257#endif 1258 ctl_port_online(port); 1259 } 1260 } 1261 1262 return (0); 1263} 1264 1265int 1266ctl_port_disable(ctl_port_type port_type) 1267{ 1268 struct ctl_softc *softc; 1269 struct ctl_port *port; 1270 1271 softc = control_softc; 1272 1273 STAILQ_FOREACH(port, &softc->port_list, links) { 1274 if (port_type & port->port_type) 1275 ctl_port_offline(port); 1276 } 1277 1278 return (0); 1279} 1280 1281/* 1282 * Returns 0 for success, 1 for failure. 1283 * Currently the only failure mode is if there aren't enough entries 1284 * allocated. So, in case of a failure, look at num_entries_dropped, 1285 * reallocate and try again. 1286 */ 1287int 1288ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1289 int *num_entries_filled, int *num_entries_dropped, 1290 ctl_port_type port_type, int no_virtual) 1291{ 1292 struct ctl_softc *softc; 1293 struct ctl_port *port; 1294 int entries_dropped, entries_filled; 1295 int retval; 1296 int i; 1297 1298 softc = control_softc; 1299 1300 retval = 0; 1301 entries_filled = 0; 1302 entries_dropped = 0; 1303 1304 i = 0; 1305 mtx_lock(&softc->ctl_lock); 1306 STAILQ_FOREACH(port, &softc->port_list, links) { 1307 struct ctl_port_entry *entry; 1308 1309 if ((port->port_type & port_type) == 0) 1310 continue; 1311 1312 if ((no_virtual != 0) 1313 && (port->virtual_port != 0)) 1314 continue; 1315 1316 if (entries_filled >= num_entries_alloced) { 1317 entries_dropped++; 1318 continue; 1319 } 1320 entry = &entries[i]; 1321 1322 entry->port_type = port->port_type; 1323 strlcpy(entry->port_name, port->port_name, 1324 sizeof(entry->port_name)); 1325 entry->physical_port = port->physical_port; 1326 entry->virtual_port = port->virtual_port; 1327 entry->wwnn = port->wwnn; 1328 entry->wwpn = port->wwpn; 1329 1330 i++; 1331 entries_filled++; 1332 } 1333 1334 mtx_unlock(&softc->ctl_lock); 1335 1336 if (entries_dropped > 0) 1337 retval = 1; 1338 1339 *num_entries_dropped = entries_dropped; 1340 *num_entries_filled = entries_filled; 1341 1342 return (retval); 1343} 1344 1345static void 1346ctl_ioctl_online(void *arg) 1347{ 1348 struct ctl_ioctl_info *ioctl_info; 1349 1350 ioctl_info = (struct ctl_ioctl_info *)arg; 1351 1352 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1353} 1354 1355static void 1356ctl_ioctl_offline(void *arg) 1357{ 1358 struct ctl_ioctl_info *ioctl_info; 1359 1360 ioctl_info = (struct ctl_ioctl_info *)arg; 1361 1362 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1363} 1364 1365/* 1366 * Remove an initiator by port number and initiator ID. 1367 * Returns 0 for success, -1 for failure. 1368 */ 1369int 1370ctl_remove_initiator(struct ctl_port *port, int iid) 1371{ 1372 struct ctl_softc *softc = control_softc; 1373 1374 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1375 1376 if (iid > CTL_MAX_INIT_PER_PORT) { 1377 printf("%s: initiator ID %u > maximun %u!\n", 1378 __func__, iid, CTL_MAX_INIT_PER_PORT); 1379 return (-1); 1380 } 1381 1382 mtx_lock(&softc->ctl_lock); 1383 port->wwpn_iid[iid].in_use--; 1384 port->wwpn_iid[iid].last_use = time_uptime; 1385 mtx_unlock(&softc->ctl_lock); 1386 1387 return (0); 1388} 1389 1390/* 1391 * Add an initiator to the initiator map. 1392 * Returns iid for success, < 0 for failure. 1393 */ 1394int 1395ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1396{ 1397 struct ctl_softc *softc = control_softc; 1398 time_t best_time; 1399 int i, best; 1400 1401 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1402 1403 if (iid >= CTL_MAX_INIT_PER_PORT) { 1404 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1405 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1406 free(name, M_CTL); 1407 return (-1); 1408 } 1409 1410 mtx_lock(&softc->ctl_lock); 1411 1412 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1413 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1414 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1415 iid = i; 1416 break; 1417 } 1418 if (name != NULL && port->wwpn_iid[i].name != NULL && 1419 strcmp(name, port->wwpn_iid[i].name) == 0) { 1420 iid = i; 1421 break; 1422 } 1423 } 1424 } 1425 1426 if (iid < 0) { 1427 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1428 if (port->wwpn_iid[i].in_use == 0 && 1429 port->wwpn_iid[i].wwpn == 0 && 1430 port->wwpn_iid[i].name == NULL) { 1431 iid = i; 1432 break; 1433 } 1434 } 1435 } 1436 1437 if (iid < 0) { 1438 best = -1; 1439 best_time = INT32_MAX; 1440 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1441 if (port->wwpn_iid[i].in_use == 0) { 1442 if (port->wwpn_iid[i].last_use < best_time) { 1443 best = i; 1444 best_time = port->wwpn_iid[i].last_use; 1445 } 1446 } 1447 } 1448 iid = best; 1449 } 1450 1451 if (iid < 0) { 1452 mtx_unlock(&softc->ctl_lock); 1453 free(name, M_CTL); 1454 return (-2); 1455 } 1456 1457 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1458 /* 1459 * This is not an error yet. 1460 */ 1461 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1462#if 0 1463 printf("%s: port %d iid %u WWPN %#jx arrived" 1464 " again\n", __func__, port->targ_port, 1465 iid, (uintmax_t)wwpn); 1466#endif 1467 goto take; 1468 } 1469 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1470 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1471#if 0 1472 printf("%s: port %d iid %u name '%s' arrived" 1473 " again\n", __func__, port->targ_port, 1474 iid, name); 1475#endif 1476 goto take; 1477 } 1478 1479 /* 1480 * This is an error, but what do we do about it? The 1481 * driver is telling us we have a new WWPN for this 1482 * initiator ID, so we pretty much need to use it. 1483 */ 1484 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1485 " but WWPN %#jx '%s' is still at that address\n", 1486 __func__, port->targ_port, iid, wwpn, name, 1487 (uintmax_t)port->wwpn_iid[iid].wwpn, 1488 port->wwpn_iid[iid].name); 1489 1490 /* 1491 * XXX KDM clear have_ca and ua_pending on each LUN for 1492 * this initiator. 1493 */ 1494 } 1495take: 1496 free(port->wwpn_iid[iid].name, M_CTL); 1497 port->wwpn_iid[iid].name = name; 1498 port->wwpn_iid[iid].wwpn = wwpn; 1499 port->wwpn_iid[iid].in_use++; 1500 mtx_unlock(&softc->ctl_lock); 1501 1502 return (iid); 1503} 1504 1505static int 1506ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1507{ 1508 int len; 1509 1510 switch (port->port_type) { 1511 case CTL_PORT_FC: 1512 { 1513 struct scsi_transportid_fcp *id = 1514 (struct scsi_transportid_fcp *)buf; 1515 if (port->wwpn_iid[iid].wwpn == 0) 1516 return (0); 1517 memset(id, 0, sizeof(*id)); 1518 id->format_protocol = SCSI_PROTO_FC; 1519 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1520 return (sizeof(*id)); 1521 } 1522 case CTL_PORT_ISCSI: 1523 { 1524 struct scsi_transportid_iscsi_port *id = 1525 (struct scsi_transportid_iscsi_port *)buf; 1526 if (port->wwpn_iid[iid].name == NULL) 1527 return (0); 1528 memset(id, 0, 256); 1529 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1530 SCSI_PROTO_ISCSI; 1531 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1532 len = roundup2(min(len, 252), 4); 1533 scsi_ulto2b(len, id->additional_length); 1534 return (sizeof(*id) + len); 1535 } 1536 case CTL_PORT_SAS: 1537 { 1538 struct scsi_transportid_sas *id = 1539 (struct scsi_transportid_sas *)buf; 1540 if (port->wwpn_iid[iid].wwpn == 0) 1541 return (0); 1542 memset(id, 0, sizeof(*id)); 1543 id->format_protocol = SCSI_PROTO_SAS; 1544 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1545 return (sizeof(*id)); 1546 } 1547 default: 1548 { 1549 struct scsi_transportid_spi *id = 1550 (struct scsi_transportid_spi *)buf; 1551 memset(id, 0, sizeof(*id)); 1552 id->format_protocol = SCSI_PROTO_SPI; 1553 scsi_ulto2b(iid, id->scsi_addr); 1554 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1555 return (sizeof(*id)); 1556 } 1557 } 1558} 1559 1560static int 1561ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1562{ 1563 return (0); 1564} 1565 1566static int 1567ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1568{ 1569 return (0); 1570} 1571 1572/* 1573 * Data movement routine for the CTL ioctl frontend port. 1574 */ 1575static int 1576ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1577{ 1578 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1579 struct ctl_sg_entry ext_entry, kern_entry; 1580 int ext_sglen, ext_sg_entries, kern_sg_entries; 1581 int ext_sg_start, ext_offset; 1582 int len_to_copy, len_copied; 1583 int kern_watermark, ext_watermark; 1584 int ext_sglist_malloced; 1585 int i, j; 1586 1587 ext_sglist_malloced = 0; 1588 ext_sg_start = 0; 1589 ext_offset = 0; 1590 1591 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1592 1593 /* 1594 * If this flag is set, fake the data transfer. 1595 */ 1596 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1597 ctsio->ext_data_filled = ctsio->ext_data_len; 1598 goto bailout; 1599 } 1600 1601 /* 1602 * To simplify things here, if we have a single buffer, stick it in 1603 * a S/G entry and just make it a single entry S/G list. 1604 */ 1605 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1606 int len_seen; 1607 1608 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1609 1610 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1611 M_WAITOK); 1612 ext_sglist_malloced = 1; 1613 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1614 ext_sglen) != 0) { 1615 ctl_set_internal_failure(ctsio, 1616 /*sks_valid*/ 0, 1617 /*retry_count*/ 0); 1618 goto bailout; 1619 } 1620 ext_sg_entries = ctsio->ext_sg_entries; 1621 len_seen = 0; 1622 for (i = 0; i < ext_sg_entries; i++) { 1623 if ((len_seen + ext_sglist[i].len) >= 1624 ctsio->ext_data_filled) { 1625 ext_sg_start = i; 1626 ext_offset = ctsio->ext_data_filled - len_seen; 1627 break; 1628 } 1629 len_seen += ext_sglist[i].len; 1630 } 1631 } else { 1632 ext_sglist = &ext_entry; 1633 ext_sglist->addr = ctsio->ext_data_ptr; 1634 ext_sglist->len = ctsio->ext_data_len; 1635 ext_sg_entries = 1; 1636 ext_sg_start = 0; 1637 ext_offset = ctsio->ext_data_filled; 1638 } 1639 1640 if (ctsio->kern_sg_entries > 0) { 1641 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1642 kern_sg_entries = ctsio->kern_sg_entries; 1643 } else { 1644 kern_sglist = &kern_entry; 1645 kern_sglist->addr = ctsio->kern_data_ptr; 1646 kern_sglist->len = ctsio->kern_data_len; 1647 kern_sg_entries = 1; 1648 } 1649 1650 1651 kern_watermark = 0; 1652 ext_watermark = ext_offset; 1653 len_copied = 0; 1654 for (i = ext_sg_start, j = 0; 1655 i < ext_sg_entries && j < kern_sg_entries;) { 1656 uint8_t *ext_ptr, *kern_ptr; 1657 1658 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1659 kern_sglist[j].len - kern_watermark); 1660 1661 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1662 ext_ptr = ext_ptr + ext_watermark; 1663 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1664 /* 1665 * XXX KDM fix this! 1666 */ 1667 panic("need to implement bus address support"); 1668#if 0 1669 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1670#endif 1671 } else 1672 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1673 kern_ptr = kern_ptr + kern_watermark; 1674 1675 kern_watermark += len_to_copy; 1676 ext_watermark += len_to_copy; 1677 1678 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1679 CTL_FLAG_DATA_IN) { 1680 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1681 "bytes to user\n", len_to_copy)); 1682 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1683 "to %p\n", kern_ptr, ext_ptr)); 1684 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1685 ctl_set_internal_failure(ctsio, 1686 /*sks_valid*/ 0, 1687 /*retry_count*/ 0); 1688 goto bailout; 1689 } 1690 } else { 1691 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1692 "bytes from user\n", len_to_copy)); 1693 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1694 "to %p\n", ext_ptr, kern_ptr)); 1695 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1696 ctl_set_internal_failure(ctsio, 1697 /*sks_valid*/ 0, 1698 /*retry_count*/0); 1699 goto bailout; 1700 } 1701 } 1702 1703 len_copied += len_to_copy; 1704 1705 if (ext_sglist[i].len == ext_watermark) { 1706 i++; 1707 ext_watermark = 0; 1708 } 1709 1710 if (kern_sglist[j].len == kern_watermark) { 1711 j++; 1712 kern_watermark = 0; 1713 } 1714 } 1715 1716 ctsio->ext_data_filled += len_copied; 1717 1718 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1719 "kern_sg_entries: %d\n", ext_sg_entries, 1720 kern_sg_entries)); 1721 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1722 "kern_data_len = %d\n", ctsio->ext_data_len, 1723 ctsio->kern_data_len)); 1724 1725 1726 /* XXX KDM set residual?? */ 1727bailout: 1728 1729 if (ext_sglist_malloced != 0) 1730 free(ext_sglist, M_CTL); 1731 1732 return (CTL_RETVAL_COMPLETE); 1733} 1734 1735/* 1736 * Serialize a command that went down the "wrong" side, and so was sent to 1737 * this controller for execution. The logic is a little different than the 1738 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1739 * sent back to the other side, but in the success case, we execute the 1740 * command on this side (XFER mode) or tell the other side to execute it 1741 * (SER_ONLY mode). 1742 */ 1743static int 1744ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1745{ 1746 struct ctl_softc *ctl_softc; 1747 union ctl_ha_msg msg_info; 1748 struct ctl_lun *lun; 1749 int retval = 0; 1750 uint32_t targ_lun; 1751 1752 ctl_softc = control_softc; 1753 1754 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1755 lun = ctl_softc->ctl_luns[targ_lun]; 1756 if (lun==NULL) 1757 { 1758 /* 1759 * Why isn't LUN defined? The other side wouldn't 1760 * send a cmd if the LUN is undefined. 1761 */ 1762 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1763 1764 /* "Logical unit not supported" */ 1765 ctl_set_sense_data(&msg_info.scsi.sense_data, 1766 lun, 1767 /*sense_format*/SSD_TYPE_NONE, 1768 /*current_error*/ 1, 1769 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1770 /*asc*/ 0x25, 1771 /*ascq*/ 0x00, 1772 SSD_ELEM_NONE); 1773 1774 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1775 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1776 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1777 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1778 msg_info.hdr.serializing_sc = NULL; 1779 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1780 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1781 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1782 } 1783 return(1); 1784 1785 } 1786 1787 mtx_lock(&lun->lun_lock); 1788 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1789 1790 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1791 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1792 ooa_links))) { 1793 case CTL_ACTION_BLOCK: 1794 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1795 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1796 blocked_links); 1797 break; 1798 case CTL_ACTION_PASS: 1799 case CTL_ACTION_SKIP: 1800 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1801 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1802 ctl_enqueue_rtr((union ctl_io *)ctsio); 1803 } else { 1804 1805 /* send msg back to other side */ 1806 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1807 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1808 msg_info.hdr.msg_type = CTL_MSG_R2R; 1809#if 0 1810 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1811#endif 1812 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1813 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1814 } 1815 } 1816 break; 1817 case CTL_ACTION_OVERLAP: 1818 /* OVERLAPPED COMMANDS ATTEMPTED */ 1819 ctl_set_sense_data(&msg_info.scsi.sense_data, 1820 lun, 1821 /*sense_format*/SSD_TYPE_NONE, 1822 /*current_error*/ 1, 1823 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1824 /*asc*/ 0x4E, 1825 /*ascq*/ 0x00, 1826 SSD_ELEM_NONE); 1827 1828 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1829 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1830 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1831 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1832 msg_info.hdr.serializing_sc = NULL; 1833 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1834#if 0 1835 printf("BAD JUJU:Major Bummer Overlap\n"); 1836#endif 1837 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1838 retval = 1; 1839 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1840 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1841 } 1842 break; 1843 case CTL_ACTION_OVERLAP_TAG: 1844 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1845 ctl_set_sense_data(&msg_info.scsi.sense_data, 1846 lun, 1847 /*sense_format*/SSD_TYPE_NONE, 1848 /*current_error*/ 1, 1849 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1850 /*asc*/ 0x4D, 1851 /*ascq*/ ctsio->tag_num & 0xff, 1852 SSD_ELEM_NONE); 1853 1854 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1855 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1856 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1857 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1858 msg_info.hdr.serializing_sc = NULL; 1859 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1860#if 0 1861 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1862#endif 1863 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1864 retval = 1; 1865 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1866 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1867 } 1868 break; 1869 case CTL_ACTION_ERROR: 1870 default: 1871 /* "Internal target failure" */ 1872 ctl_set_sense_data(&msg_info.scsi.sense_data, 1873 lun, 1874 /*sense_format*/SSD_TYPE_NONE, 1875 /*current_error*/ 1, 1876 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1877 /*asc*/ 0x44, 1878 /*ascq*/ 0x00, 1879 SSD_ELEM_NONE); 1880 1881 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1882 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1883 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1884 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1885 msg_info.hdr.serializing_sc = NULL; 1886 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1887#if 0 1888 printf("BAD JUJU:Major Bummer HW Error\n"); 1889#endif 1890 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1891 retval = 1; 1892 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1893 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1894 } 1895 break; 1896 } 1897 mtx_unlock(&lun->lun_lock); 1898 return (retval); 1899} 1900 1901static int 1902ctl_ioctl_submit_wait(union ctl_io *io) 1903{ 1904 struct ctl_fe_ioctl_params params; 1905 ctl_fe_ioctl_state last_state; 1906 int done, retval; 1907 1908 retval = 0; 1909 1910 bzero(¶ms, sizeof(params)); 1911 1912 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1913 cv_init(¶ms.sem, "ctlioccv"); 1914 params.state = CTL_IOCTL_INPROG; 1915 last_state = params.state; 1916 1917 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1918 1919 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1920 1921 /* This shouldn't happen */ 1922 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1923 return (retval); 1924 1925 done = 0; 1926 1927 do { 1928 mtx_lock(¶ms.ioctl_mtx); 1929 /* 1930 * Check the state here, and don't sleep if the state has 1931 * already changed (i.e. wakeup has already occured, but we 1932 * weren't waiting yet). 1933 */ 1934 if (params.state == last_state) { 1935 /* XXX KDM cv_wait_sig instead? */ 1936 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1937 } 1938 last_state = params.state; 1939 1940 switch (params.state) { 1941 case CTL_IOCTL_INPROG: 1942 /* Why did we wake up? */ 1943 /* XXX KDM error here? */ 1944 mtx_unlock(¶ms.ioctl_mtx); 1945 break; 1946 case CTL_IOCTL_DATAMOVE: 1947 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1948 1949 /* 1950 * change last_state back to INPROG to avoid 1951 * deadlock on subsequent data moves. 1952 */ 1953 params.state = last_state = CTL_IOCTL_INPROG; 1954 1955 mtx_unlock(¶ms.ioctl_mtx); 1956 ctl_ioctl_do_datamove(&io->scsiio); 1957 /* 1958 * Note that in some cases, most notably writes, 1959 * this will queue the I/O and call us back later. 1960 * In other cases, generally reads, this routine 1961 * will immediately call back and wake us up, 1962 * probably using our own context. 1963 */ 1964 io->scsiio.be_move_done(io); 1965 break; 1966 case CTL_IOCTL_DONE: 1967 mtx_unlock(¶ms.ioctl_mtx); 1968 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1969 done = 1; 1970 break; 1971 default: 1972 mtx_unlock(¶ms.ioctl_mtx); 1973 /* XXX KDM error here? */ 1974 break; 1975 } 1976 } while (done == 0); 1977 1978 mtx_destroy(¶ms.ioctl_mtx); 1979 cv_destroy(¶ms.sem); 1980 1981 return (CTL_RETVAL_COMPLETE); 1982} 1983 1984static void 1985ctl_ioctl_datamove(union ctl_io *io) 1986{ 1987 struct ctl_fe_ioctl_params *params; 1988 1989 params = (struct ctl_fe_ioctl_params *) 1990 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1991 1992 mtx_lock(¶ms->ioctl_mtx); 1993 params->state = CTL_IOCTL_DATAMOVE; 1994 cv_broadcast(¶ms->sem); 1995 mtx_unlock(¶ms->ioctl_mtx); 1996} 1997 1998static void 1999ctl_ioctl_done(union ctl_io *io) 2000{ 2001 struct ctl_fe_ioctl_params *params; 2002 2003 params = (struct ctl_fe_ioctl_params *) 2004 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2005 2006 mtx_lock(¶ms->ioctl_mtx); 2007 params->state = CTL_IOCTL_DONE; 2008 cv_broadcast(¶ms->sem); 2009 mtx_unlock(¶ms->ioctl_mtx); 2010} 2011 2012static void 2013ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2014{ 2015 struct ctl_fe_ioctl_startstop_info *sd_info; 2016 2017 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2018 2019 sd_info->hs_info.status = metatask->status; 2020 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2021 sd_info->hs_info.luns_complete = 2022 metatask->taskinfo.startstop.luns_complete; 2023 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2024 2025 cv_broadcast(&sd_info->sem); 2026} 2027 2028static void 2029ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2030{ 2031 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2032 2033 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2034 2035 mtx_lock(fe_bbr_info->lock); 2036 fe_bbr_info->bbr_info->status = metatask->status; 2037 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2038 fe_bbr_info->wakeup_done = 1; 2039 mtx_unlock(fe_bbr_info->lock); 2040 2041 cv_broadcast(&fe_bbr_info->sem); 2042} 2043 2044/* 2045 * Returns 0 for success, errno for failure. 2046 */ 2047static int 2048ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2049 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2050{ 2051 union ctl_io *io; 2052 int retval; 2053 2054 retval = 0; 2055 2056 mtx_lock(&lun->lun_lock); 2057 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2058 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2059 ooa_links)) { 2060 struct ctl_ooa_entry *entry; 2061 2062 /* 2063 * If we've got more than we can fit, just count the 2064 * remaining entries. 2065 */ 2066 if (*cur_fill_num >= ooa_hdr->alloc_num) 2067 continue; 2068 2069 entry = &kern_entries[*cur_fill_num]; 2070 2071 entry->tag_num = io->scsiio.tag_num; 2072 entry->lun_num = lun->lun; 2073#ifdef CTL_TIME_IO 2074 entry->start_bt = io->io_hdr.start_bt; 2075#endif 2076 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2077 entry->cdb_len = io->scsiio.cdb_len; 2078 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2079 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2080 2081 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2082 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2083 2084 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2085 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2086 2087 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2088 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2089 2090 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2091 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2092 } 2093 mtx_unlock(&lun->lun_lock); 2094 2095 return (retval); 2096} 2097 2098static void * 2099ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2100 size_t error_str_len) 2101{ 2102 void *kptr; 2103 2104 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2105 2106 if (copyin(user_addr, kptr, len) != 0) { 2107 snprintf(error_str, error_str_len, "Error copying %d bytes " 2108 "from user address %p to kernel address %p", len, 2109 user_addr, kptr); 2110 free(kptr, M_CTL); 2111 return (NULL); 2112 } 2113 2114 return (kptr); 2115} 2116 2117static void 2118ctl_free_args(int num_args, struct ctl_be_arg *args) 2119{ 2120 int i; 2121 2122 if (args == NULL) 2123 return; 2124 2125 for (i = 0; i < num_args; i++) { 2126 free(args[i].kname, M_CTL); 2127 free(args[i].kvalue, M_CTL); 2128 } 2129 2130 free(args, M_CTL); 2131} 2132 2133static struct ctl_be_arg * 2134ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2135 char *error_str, size_t error_str_len) 2136{ 2137 struct ctl_be_arg *args; 2138 int i; 2139 2140 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2141 error_str, error_str_len); 2142 2143 if (args == NULL) 2144 goto bailout; 2145 2146 for (i = 0; i < num_args; i++) { 2147 args[i].kname = NULL; 2148 args[i].kvalue = NULL; 2149 } 2150 2151 for (i = 0; i < num_args; i++) { 2152 uint8_t *tmpptr; 2153 2154 args[i].kname = ctl_copyin_alloc(args[i].name, 2155 args[i].namelen, error_str, error_str_len); 2156 if (args[i].kname == NULL) 2157 goto bailout; 2158 2159 if (args[i].kname[args[i].namelen - 1] != '\0') { 2160 snprintf(error_str, error_str_len, "Argument %d " 2161 "name is not NUL-terminated", i); 2162 goto bailout; 2163 } 2164 2165 if (args[i].flags & CTL_BEARG_RD) { 2166 tmpptr = ctl_copyin_alloc(args[i].value, 2167 args[i].vallen, error_str, error_str_len); 2168 if (tmpptr == NULL) 2169 goto bailout; 2170 if ((args[i].flags & CTL_BEARG_ASCII) 2171 && (tmpptr[args[i].vallen - 1] != '\0')) { 2172 snprintf(error_str, error_str_len, "Argument " 2173 "%d value is not NUL-terminated", i); 2174 goto bailout; 2175 } 2176 args[i].kvalue = tmpptr; 2177 } else { 2178 args[i].kvalue = malloc(args[i].vallen, 2179 M_CTL, M_WAITOK | M_ZERO); 2180 } 2181 } 2182 2183 return (args); 2184bailout: 2185 2186 ctl_free_args(num_args, args); 2187 2188 return (NULL); 2189} 2190 2191static void 2192ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2193{ 2194 int i; 2195 2196 for (i = 0; i < num_args; i++) { 2197 if (args[i].flags & CTL_BEARG_WR) 2198 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2199 } 2200} 2201 2202/* 2203 * Escape characters that are illegal or not recommended in XML. 2204 */ 2205int 2206ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2207{ 2208 int retval; 2209 2210 retval = 0; 2211 2212 for (; *str; str++) { 2213 switch (*str) { 2214 case '&': 2215 retval = sbuf_printf(sb, "&"); 2216 break; 2217 case '>': 2218 retval = sbuf_printf(sb, ">"); 2219 break; 2220 case '<': 2221 retval = sbuf_printf(sb, "<"); 2222 break; 2223 default: 2224 retval = sbuf_putc(sb, *str); 2225 break; 2226 } 2227 2228 if (retval != 0) 2229 break; 2230 2231 } 2232 2233 return (retval); 2234} 2235 2236static int 2237ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2238 struct thread *td) 2239{ 2240 struct ctl_softc *softc; 2241 int retval; 2242 2243 softc = control_softc; 2244 2245 retval = 0; 2246 2247 switch (cmd) { 2248 case CTL_IO: { 2249 union ctl_io *io; 2250 void *pool_tmp; 2251 2252 /* 2253 * If we haven't been "enabled", don't allow any SCSI I/O 2254 * to this FETD. 2255 */ 2256 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2257 retval = EPERM; 2258 break; 2259 } 2260 2261 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2262 if (io == NULL) { 2263 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2264 retval = ENOSPC; 2265 break; 2266 } 2267 2268 /* 2269 * Need to save the pool reference so it doesn't get 2270 * spammed by the user's ctl_io. 2271 */ 2272 pool_tmp = io->io_hdr.pool; 2273 2274 memcpy(io, (void *)addr, sizeof(*io)); 2275 2276 io->io_hdr.pool = pool_tmp; 2277 /* 2278 * No status yet, so make sure the status is set properly. 2279 */ 2280 io->io_hdr.status = CTL_STATUS_NONE; 2281 2282 /* 2283 * The user sets the initiator ID, target and LUN IDs. 2284 */ 2285 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2286 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2287 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2288 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2289 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2290 2291 retval = ctl_ioctl_submit_wait(io); 2292 2293 if (retval != 0) { 2294 ctl_free_io(io); 2295 break; 2296 } 2297 2298 memcpy((void *)addr, io, sizeof(*io)); 2299 2300 /* return this to our pool */ 2301 ctl_free_io(io); 2302 2303 break; 2304 } 2305 case CTL_ENABLE_PORT: 2306 case CTL_DISABLE_PORT: 2307 case CTL_SET_PORT_WWNS: { 2308 struct ctl_port *port; 2309 struct ctl_port_entry *entry; 2310 2311 entry = (struct ctl_port_entry *)addr; 2312 2313 mtx_lock(&softc->ctl_lock); 2314 STAILQ_FOREACH(port, &softc->port_list, links) { 2315 int action, done; 2316 2317 action = 0; 2318 done = 0; 2319 2320 if ((entry->port_type == CTL_PORT_NONE) 2321 && (entry->targ_port == port->targ_port)) { 2322 /* 2323 * If the user only wants to enable or 2324 * disable or set WWNs on a specific port, 2325 * do the operation and we're done. 2326 */ 2327 action = 1; 2328 done = 1; 2329 } else if (entry->port_type & port->port_type) { 2330 /* 2331 * Compare the user's type mask with the 2332 * particular frontend type to see if we 2333 * have a match. 2334 */ 2335 action = 1; 2336 done = 0; 2337 2338 /* 2339 * Make sure the user isn't trying to set 2340 * WWNs on multiple ports at the same time. 2341 */ 2342 if (cmd == CTL_SET_PORT_WWNS) { 2343 printf("%s: Can't set WWNs on " 2344 "multiple ports\n", __func__); 2345 retval = EINVAL; 2346 break; 2347 } 2348 } 2349 if (action != 0) { 2350 /* 2351 * XXX KDM we have to drop the lock here, 2352 * because the online/offline operations 2353 * can potentially block. We need to 2354 * reference count the frontends so they 2355 * can't go away, 2356 */ 2357 mtx_unlock(&softc->ctl_lock); 2358 2359 if (cmd == CTL_ENABLE_PORT) { 2360 struct ctl_lun *lun; 2361 2362 STAILQ_FOREACH(lun, &softc->lun_list, 2363 links) { 2364 port->lun_enable(port->targ_lun_arg, 2365 lun->target, 2366 lun->lun); 2367 } 2368 2369 ctl_port_online(port); 2370 } else if (cmd == CTL_DISABLE_PORT) { 2371 struct ctl_lun *lun; 2372 2373 ctl_port_offline(port); 2374 2375 STAILQ_FOREACH(lun, &softc->lun_list, 2376 links) { 2377 port->lun_disable( 2378 port->targ_lun_arg, 2379 lun->target, 2380 lun->lun); 2381 } 2382 } 2383 2384 mtx_lock(&softc->ctl_lock); 2385 2386 if (cmd == CTL_SET_PORT_WWNS) 2387 ctl_port_set_wwns(port, 2388 (entry->flags & CTL_PORT_WWNN_VALID) ? 2389 1 : 0, entry->wwnn, 2390 (entry->flags & CTL_PORT_WWPN_VALID) ? 2391 1 : 0, entry->wwpn); 2392 } 2393 if (done != 0) 2394 break; 2395 } 2396 mtx_unlock(&softc->ctl_lock); 2397 break; 2398 } 2399 case CTL_GET_PORT_LIST: { 2400 struct ctl_port *port; 2401 struct ctl_port_list *list; 2402 int i; 2403 2404 list = (struct ctl_port_list *)addr; 2405 2406 if (list->alloc_len != (list->alloc_num * 2407 sizeof(struct ctl_port_entry))) { 2408 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2409 "alloc_num %u * sizeof(struct ctl_port_entry) " 2410 "%zu\n", __func__, list->alloc_len, 2411 list->alloc_num, sizeof(struct ctl_port_entry)); 2412 retval = EINVAL; 2413 break; 2414 } 2415 list->fill_len = 0; 2416 list->fill_num = 0; 2417 list->dropped_num = 0; 2418 i = 0; 2419 mtx_lock(&softc->ctl_lock); 2420 STAILQ_FOREACH(port, &softc->port_list, links) { 2421 struct ctl_port_entry entry, *list_entry; 2422 2423 if (list->fill_num >= list->alloc_num) { 2424 list->dropped_num++; 2425 continue; 2426 } 2427 2428 entry.port_type = port->port_type; 2429 strlcpy(entry.port_name, port->port_name, 2430 sizeof(entry.port_name)); 2431 entry.targ_port = port->targ_port; 2432 entry.physical_port = port->physical_port; 2433 entry.virtual_port = port->virtual_port; 2434 entry.wwnn = port->wwnn; 2435 entry.wwpn = port->wwpn; 2436 if (port->status & CTL_PORT_STATUS_ONLINE) 2437 entry.online = 1; 2438 else 2439 entry.online = 0; 2440 2441 list_entry = &list->entries[i]; 2442 2443 retval = copyout(&entry, list_entry, sizeof(entry)); 2444 if (retval != 0) { 2445 printf("%s: CTL_GET_PORT_LIST: copyout " 2446 "returned %d\n", __func__, retval); 2447 break; 2448 } 2449 i++; 2450 list->fill_num++; 2451 list->fill_len += sizeof(entry); 2452 } 2453 mtx_unlock(&softc->ctl_lock); 2454 2455 /* 2456 * If this is non-zero, we had a copyout fault, so there's 2457 * probably no point in attempting to set the status inside 2458 * the structure. 2459 */ 2460 if (retval != 0) 2461 break; 2462 2463 if (list->dropped_num > 0) 2464 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2465 else 2466 list->status = CTL_PORT_LIST_OK; 2467 break; 2468 } 2469 case CTL_DUMP_OOA: { 2470 struct ctl_lun *lun; 2471 union ctl_io *io; 2472 char printbuf[128]; 2473 struct sbuf sb; 2474 2475 mtx_lock(&softc->ctl_lock); 2476 printf("Dumping OOA queues:\n"); 2477 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2478 mtx_lock(&lun->lun_lock); 2479 for (io = (union ctl_io *)TAILQ_FIRST( 2480 &lun->ooa_queue); io != NULL; 2481 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2482 ooa_links)) { 2483 sbuf_new(&sb, printbuf, sizeof(printbuf), 2484 SBUF_FIXEDLEN); 2485 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2486 (intmax_t)lun->lun, 2487 io->scsiio.tag_num, 2488 (io->io_hdr.flags & 2489 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2490 (io->io_hdr.flags & 2491 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2492 (io->io_hdr.flags & 2493 CTL_FLAG_ABORT) ? " ABORT" : "", 2494 (io->io_hdr.flags & 2495 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2496 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2497 sbuf_finish(&sb); 2498 printf("%s\n", sbuf_data(&sb)); 2499 } 2500 mtx_unlock(&lun->lun_lock); 2501 } 2502 printf("OOA queues dump done\n"); 2503 mtx_unlock(&softc->ctl_lock); 2504 break; 2505 } 2506 case CTL_GET_OOA: { 2507 struct ctl_lun *lun; 2508 struct ctl_ooa *ooa_hdr; 2509 struct ctl_ooa_entry *entries; 2510 uint32_t cur_fill_num; 2511 2512 ooa_hdr = (struct ctl_ooa *)addr; 2513 2514 if ((ooa_hdr->alloc_len == 0) 2515 || (ooa_hdr->alloc_num == 0)) { 2516 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2517 "must be non-zero\n", __func__, 2518 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2519 retval = EINVAL; 2520 break; 2521 } 2522 2523 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2524 sizeof(struct ctl_ooa_entry))) { 2525 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2526 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2527 __func__, ooa_hdr->alloc_len, 2528 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2529 retval = EINVAL; 2530 break; 2531 } 2532 2533 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2534 if (entries == NULL) { 2535 printf("%s: could not allocate %d bytes for OOA " 2536 "dump\n", __func__, ooa_hdr->alloc_len); 2537 retval = ENOMEM; 2538 break; 2539 } 2540 2541 mtx_lock(&softc->ctl_lock); 2542 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2543 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2544 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2545 mtx_unlock(&softc->ctl_lock); 2546 free(entries, M_CTL); 2547 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2548 __func__, (uintmax_t)ooa_hdr->lun_num); 2549 retval = EINVAL; 2550 break; 2551 } 2552 2553 cur_fill_num = 0; 2554 2555 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2556 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2557 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2558 ooa_hdr, entries); 2559 if (retval != 0) 2560 break; 2561 } 2562 if (retval != 0) { 2563 mtx_unlock(&softc->ctl_lock); 2564 free(entries, M_CTL); 2565 break; 2566 } 2567 } else { 2568 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2569 2570 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2571 entries); 2572 } 2573 mtx_unlock(&softc->ctl_lock); 2574 2575 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2576 ooa_hdr->fill_len = ooa_hdr->fill_num * 2577 sizeof(struct ctl_ooa_entry); 2578 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2579 if (retval != 0) { 2580 printf("%s: error copying out %d bytes for OOA dump\n", 2581 __func__, ooa_hdr->fill_len); 2582 } 2583 2584 getbintime(&ooa_hdr->cur_bt); 2585 2586 if (cur_fill_num > ooa_hdr->alloc_num) { 2587 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2588 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2589 } else { 2590 ooa_hdr->dropped_num = 0; 2591 ooa_hdr->status = CTL_OOA_OK; 2592 } 2593 2594 free(entries, M_CTL); 2595 break; 2596 } 2597 case CTL_CHECK_OOA: { 2598 union ctl_io *io; 2599 struct ctl_lun *lun; 2600 struct ctl_ooa_info *ooa_info; 2601 2602 2603 ooa_info = (struct ctl_ooa_info *)addr; 2604 2605 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2606 ooa_info->status = CTL_OOA_INVALID_LUN; 2607 break; 2608 } 2609 mtx_lock(&softc->ctl_lock); 2610 lun = softc->ctl_luns[ooa_info->lun_id]; 2611 if (lun == NULL) { 2612 mtx_unlock(&softc->ctl_lock); 2613 ooa_info->status = CTL_OOA_INVALID_LUN; 2614 break; 2615 } 2616 mtx_lock(&lun->lun_lock); 2617 mtx_unlock(&softc->ctl_lock); 2618 ooa_info->num_entries = 0; 2619 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2620 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2621 &io->io_hdr, ooa_links)) { 2622 ooa_info->num_entries++; 2623 } 2624 mtx_unlock(&lun->lun_lock); 2625 2626 ooa_info->status = CTL_OOA_SUCCESS; 2627 2628 break; 2629 } 2630 case CTL_HARD_START: 2631 case CTL_HARD_STOP: { 2632 struct ctl_fe_ioctl_startstop_info ss_info; 2633 struct cfi_metatask *metatask; 2634 struct mtx hs_mtx; 2635 2636 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2637 2638 cv_init(&ss_info.sem, "hard start/stop cv" ); 2639 2640 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2641 if (metatask == NULL) { 2642 retval = ENOMEM; 2643 mtx_destroy(&hs_mtx); 2644 break; 2645 } 2646 2647 if (cmd == CTL_HARD_START) 2648 metatask->tasktype = CFI_TASK_STARTUP; 2649 else 2650 metatask->tasktype = CFI_TASK_SHUTDOWN; 2651 2652 metatask->callback = ctl_ioctl_hard_startstop_callback; 2653 metatask->callback_arg = &ss_info; 2654 2655 cfi_action(metatask); 2656 2657 /* Wait for the callback */ 2658 mtx_lock(&hs_mtx); 2659 cv_wait_sig(&ss_info.sem, &hs_mtx); 2660 mtx_unlock(&hs_mtx); 2661 2662 /* 2663 * All information has been copied from the metatask by the 2664 * time cv_broadcast() is called, so we free the metatask here. 2665 */ 2666 cfi_free_metatask(metatask); 2667 2668 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2669 2670 mtx_destroy(&hs_mtx); 2671 break; 2672 } 2673 case CTL_BBRREAD: { 2674 struct ctl_bbrread_info *bbr_info; 2675 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2676 struct mtx bbr_mtx; 2677 struct cfi_metatask *metatask; 2678 2679 bbr_info = (struct ctl_bbrread_info *)addr; 2680 2681 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2682 2683 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2684 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2685 2686 fe_bbr_info.bbr_info = bbr_info; 2687 fe_bbr_info.lock = &bbr_mtx; 2688 2689 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2690 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2691 2692 if (metatask == NULL) { 2693 mtx_destroy(&bbr_mtx); 2694 cv_destroy(&fe_bbr_info.sem); 2695 retval = ENOMEM; 2696 break; 2697 } 2698 metatask->tasktype = CFI_TASK_BBRREAD; 2699 metatask->callback = ctl_ioctl_bbrread_callback; 2700 metatask->callback_arg = &fe_bbr_info; 2701 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2702 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2703 metatask->taskinfo.bbrread.len = bbr_info->len; 2704 2705 cfi_action(metatask); 2706 2707 mtx_lock(&bbr_mtx); 2708 while (fe_bbr_info.wakeup_done == 0) 2709 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2710 mtx_unlock(&bbr_mtx); 2711 2712 bbr_info->status = metatask->status; 2713 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2714 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2715 memcpy(&bbr_info->sense_data, 2716 &metatask->taskinfo.bbrread.sense_data, 2717 ctl_min(sizeof(bbr_info->sense_data), 2718 sizeof(metatask->taskinfo.bbrread.sense_data))); 2719 2720 cfi_free_metatask(metatask); 2721 2722 mtx_destroy(&bbr_mtx); 2723 cv_destroy(&fe_bbr_info.sem); 2724 2725 break; 2726 } 2727 case CTL_DELAY_IO: { 2728 struct ctl_io_delay_info *delay_info; 2729#ifdef CTL_IO_DELAY 2730 struct ctl_lun *lun; 2731#endif /* CTL_IO_DELAY */ 2732 2733 delay_info = (struct ctl_io_delay_info *)addr; 2734 2735#ifdef CTL_IO_DELAY 2736 mtx_lock(&softc->ctl_lock); 2737 2738 if ((delay_info->lun_id > CTL_MAX_LUNS) 2739 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2740 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2741 } else { 2742 lun = softc->ctl_luns[delay_info->lun_id]; 2743 mtx_lock(&lun->lun_lock); 2744 2745 delay_info->status = CTL_DELAY_STATUS_OK; 2746 2747 switch (delay_info->delay_type) { 2748 case CTL_DELAY_TYPE_CONT: 2749 break; 2750 case CTL_DELAY_TYPE_ONESHOT: 2751 break; 2752 default: 2753 delay_info->status = 2754 CTL_DELAY_STATUS_INVALID_TYPE; 2755 break; 2756 } 2757 2758 switch (delay_info->delay_loc) { 2759 case CTL_DELAY_LOC_DATAMOVE: 2760 lun->delay_info.datamove_type = 2761 delay_info->delay_type; 2762 lun->delay_info.datamove_delay = 2763 delay_info->delay_secs; 2764 break; 2765 case CTL_DELAY_LOC_DONE: 2766 lun->delay_info.done_type = 2767 delay_info->delay_type; 2768 lun->delay_info.done_delay = 2769 delay_info->delay_secs; 2770 break; 2771 default: 2772 delay_info->status = 2773 CTL_DELAY_STATUS_INVALID_LOC; 2774 break; 2775 } 2776 mtx_unlock(&lun->lun_lock); 2777 } 2778 2779 mtx_unlock(&softc->ctl_lock); 2780#else 2781 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2782#endif /* CTL_IO_DELAY */ 2783 break; 2784 } 2785 case CTL_REALSYNC_SET: { 2786 int *syncstate; 2787 2788 syncstate = (int *)addr; 2789 2790 mtx_lock(&softc->ctl_lock); 2791 switch (*syncstate) { 2792 case 0: 2793 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2794 break; 2795 case 1: 2796 softc->flags |= CTL_FLAG_REAL_SYNC; 2797 break; 2798 default: 2799 retval = EINVAL; 2800 break; 2801 } 2802 mtx_unlock(&softc->ctl_lock); 2803 break; 2804 } 2805 case CTL_REALSYNC_GET: { 2806 int *syncstate; 2807 2808 syncstate = (int*)addr; 2809 2810 mtx_lock(&softc->ctl_lock); 2811 if (softc->flags & CTL_FLAG_REAL_SYNC) 2812 *syncstate = 1; 2813 else 2814 *syncstate = 0; 2815 mtx_unlock(&softc->ctl_lock); 2816 2817 break; 2818 } 2819 case CTL_SETSYNC: 2820 case CTL_GETSYNC: { 2821 struct ctl_sync_info *sync_info; 2822 struct ctl_lun *lun; 2823 2824 sync_info = (struct ctl_sync_info *)addr; 2825 2826 mtx_lock(&softc->ctl_lock); 2827 lun = softc->ctl_luns[sync_info->lun_id]; 2828 if (lun == NULL) { 2829 mtx_unlock(&softc->ctl_lock); 2830 sync_info->status = CTL_GS_SYNC_NO_LUN; 2831 } 2832 /* 2833 * Get or set the sync interval. We're not bounds checking 2834 * in the set case, hopefully the user won't do something 2835 * silly. 2836 */ 2837 mtx_lock(&lun->lun_lock); 2838 mtx_unlock(&softc->ctl_lock); 2839 if (cmd == CTL_GETSYNC) 2840 sync_info->sync_interval = lun->sync_interval; 2841 else 2842 lun->sync_interval = sync_info->sync_interval; 2843 mtx_unlock(&lun->lun_lock); 2844 2845 sync_info->status = CTL_GS_SYNC_OK; 2846 2847 break; 2848 } 2849 case CTL_GETSTATS: { 2850 struct ctl_stats *stats; 2851 struct ctl_lun *lun; 2852 int i; 2853 2854 stats = (struct ctl_stats *)addr; 2855 2856 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2857 stats->alloc_len) { 2858 stats->status = CTL_SS_NEED_MORE_SPACE; 2859 stats->num_luns = softc->num_luns; 2860 break; 2861 } 2862 /* 2863 * XXX KDM no locking here. If the LUN list changes, 2864 * things can blow up. 2865 */ 2866 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2867 i++, lun = STAILQ_NEXT(lun, links)) { 2868 retval = copyout(&lun->stats, &stats->lun_stats[i], 2869 sizeof(lun->stats)); 2870 if (retval != 0) 2871 break; 2872 } 2873 stats->num_luns = softc->num_luns; 2874 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2875 softc->num_luns; 2876 stats->status = CTL_SS_OK; 2877#ifdef CTL_TIME_IO 2878 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2879#else 2880 stats->flags = CTL_STATS_FLAG_NONE; 2881#endif 2882 getnanouptime(&stats->timestamp); 2883 break; 2884 } 2885 case CTL_ERROR_INJECT: { 2886 struct ctl_error_desc *err_desc, *new_err_desc; 2887 struct ctl_lun *lun; 2888 2889 err_desc = (struct ctl_error_desc *)addr; 2890 2891 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2892 M_WAITOK | M_ZERO); 2893 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2894 2895 mtx_lock(&softc->ctl_lock); 2896 lun = softc->ctl_luns[err_desc->lun_id]; 2897 if (lun == NULL) { 2898 mtx_unlock(&softc->ctl_lock); 2899 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2900 __func__, (uintmax_t)err_desc->lun_id); 2901 retval = EINVAL; 2902 break; 2903 } 2904 mtx_lock(&lun->lun_lock); 2905 mtx_unlock(&softc->ctl_lock); 2906 2907 /* 2908 * We could do some checking here to verify the validity 2909 * of the request, but given the complexity of error 2910 * injection requests, the checking logic would be fairly 2911 * complex. 2912 * 2913 * For now, if the request is invalid, it just won't get 2914 * executed and might get deleted. 2915 */ 2916 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2917 2918 /* 2919 * XXX KDM check to make sure the serial number is unique, 2920 * in case we somehow manage to wrap. That shouldn't 2921 * happen for a very long time, but it's the right thing to 2922 * do. 2923 */ 2924 new_err_desc->serial = lun->error_serial; 2925 err_desc->serial = lun->error_serial; 2926 lun->error_serial++; 2927 2928 mtx_unlock(&lun->lun_lock); 2929 break; 2930 } 2931 case CTL_ERROR_INJECT_DELETE: { 2932 struct ctl_error_desc *delete_desc, *desc, *desc2; 2933 struct ctl_lun *lun; 2934 int delete_done; 2935 2936 delete_desc = (struct ctl_error_desc *)addr; 2937 delete_done = 0; 2938 2939 mtx_lock(&softc->ctl_lock); 2940 lun = softc->ctl_luns[delete_desc->lun_id]; 2941 if (lun == NULL) { 2942 mtx_unlock(&softc->ctl_lock); 2943 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2944 __func__, (uintmax_t)delete_desc->lun_id); 2945 retval = EINVAL; 2946 break; 2947 } 2948 mtx_lock(&lun->lun_lock); 2949 mtx_unlock(&softc->ctl_lock); 2950 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2951 if (desc->serial != delete_desc->serial) 2952 continue; 2953 2954 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2955 links); 2956 free(desc, M_CTL); 2957 delete_done = 1; 2958 } 2959 mtx_unlock(&lun->lun_lock); 2960 if (delete_done == 0) { 2961 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2962 "error serial %ju on LUN %u\n", __func__, 2963 delete_desc->serial, delete_desc->lun_id); 2964 retval = EINVAL; 2965 break; 2966 } 2967 break; 2968 } 2969 case CTL_DUMP_STRUCTS: { 2970 int i, j, k, idx; 2971 struct ctl_port *port; 2972 struct ctl_frontend *fe; 2973 2974 mtx_lock(&softc->ctl_lock); 2975 printf("CTL Persistent Reservation information start:\n"); 2976 for (i = 0; i < CTL_MAX_LUNS; i++) { 2977 struct ctl_lun *lun; 2978 2979 lun = softc->ctl_luns[i]; 2980 2981 if ((lun == NULL) 2982 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2983 continue; 2984 2985 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2986 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2987 idx = j * CTL_MAX_INIT_PER_PORT + k; 2988 if (lun->per_res[idx].registered == 0) 2989 continue; 2990 printf(" LUN %d port %d iid %d key " 2991 "%#jx\n", i, j, k, 2992 (uintmax_t)scsi_8btou64( 2993 lun->per_res[idx].res_key.key)); 2994 } 2995 } 2996 } 2997 printf("CTL Persistent Reservation information end\n"); 2998 printf("CTL Ports:\n"); 2999 STAILQ_FOREACH(port, &softc->port_list, links) { 3000 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3001 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3002 port->frontend->name, port->port_type, 3003 port->physical_port, port->virtual_port, 3004 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3005 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3006 if (port->wwpn_iid[j].in_use == 0 && 3007 port->wwpn_iid[j].wwpn == 0 && 3008 port->wwpn_iid[j].name == NULL) 3009 continue; 3010 3011 printf(" iid %u use %d WWPN %#jx '%s'\n", 3012 j, port->wwpn_iid[j].in_use, 3013 (uintmax_t)port->wwpn_iid[j].wwpn, 3014 port->wwpn_iid[j].name); 3015 } 3016 } 3017 printf("CTL Port information end\n"); 3018 mtx_unlock(&softc->ctl_lock); 3019 /* 3020 * XXX KDM calling this without a lock. We'd likely want 3021 * to drop the lock before calling the frontend's dump 3022 * routine anyway. 3023 */ 3024 printf("CTL Frontends:\n"); 3025 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3026 printf(" Frontend '%s'\n", fe->name); 3027 if (fe->fe_dump != NULL) 3028 fe->fe_dump(); 3029 } 3030 printf("CTL Frontend information end\n"); 3031 break; 3032 } 3033 case CTL_LUN_REQ: { 3034 struct ctl_lun_req *lun_req; 3035 struct ctl_backend_driver *backend; 3036 3037 lun_req = (struct ctl_lun_req *)addr; 3038 3039 backend = ctl_backend_find(lun_req->backend); 3040 if (backend == NULL) { 3041 lun_req->status = CTL_LUN_ERROR; 3042 snprintf(lun_req->error_str, 3043 sizeof(lun_req->error_str), 3044 "Backend \"%s\" not found.", 3045 lun_req->backend); 3046 break; 3047 } 3048 if (lun_req->num_be_args > 0) { 3049 lun_req->kern_be_args = ctl_copyin_args( 3050 lun_req->num_be_args, 3051 lun_req->be_args, 3052 lun_req->error_str, 3053 sizeof(lun_req->error_str)); 3054 if (lun_req->kern_be_args == NULL) { 3055 lun_req->status = CTL_LUN_ERROR; 3056 break; 3057 } 3058 } 3059 3060 retval = backend->ioctl(dev, cmd, addr, flag, td); 3061 3062 if (lun_req->num_be_args > 0) { 3063 ctl_copyout_args(lun_req->num_be_args, 3064 lun_req->kern_be_args); 3065 ctl_free_args(lun_req->num_be_args, 3066 lun_req->kern_be_args); 3067 } 3068 break; 3069 } 3070 case CTL_LUN_LIST: { 3071 struct sbuf *sb; 3072 struct ctl_lun *lun; 3073 struct ctl_lun_list *list; 3074 struct ctl_option *opt; 3075 3076 list = (struct ctl_lun_list *)addr; 3077 3078 /* 3079 * Allocate a fixed length sbuf here, based on the length 3080 * of the user's buffer. We could allocate an auto-extending 3081 * buffer, and then tell the user how much larger our 3082 * amount of data is than his buffer, but that presents 3083 * some problems: 3084 * 3085 * 1. The sbuf(9) routines use a blocking malloc, and so 3086 * we can't hold a lock while calling them with an 3087 * auto-extending buffer. 3088 * 3089 * 2. There is not currently a LUN reference counting 3090 * mechanism, outside of outstanding transactions on 3091 * the LUN's OOA queue. So a LUN could go away on us 3092 * while we're getting the LUN number, backend-specific 3093 * information, etc. Thus, given the way things 3094 * currently work, we need to hold the CTL lock while 3095 * grabbing LUN information. 3096 * 3097 * So, from the user's standpoint, the best thing to do is 3098 * allocate what he thinks is a reasonable buffer length, 3099 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3100 * double the buffer length and try again. (And repeat 3101 * that until he succeeds.) 3102 */ 3103 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3104 if (sb == NULL) { 3105 list->status = CTL_LUN_LIST_ERROR; 3106 snprintf(list->error_str, sizeof(list->error_str), 3107 "Unable to allocate %d bytes for LUN list", 3108 list->alloc_len); 3109 break; 3110 } 3111 3112 sbuf_printf(sb, "<ctllunlist>\n"); 3113 3114 mtx_lock(&softc->ctl_lock); 3115 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3116 mtx_lock(&lun->lun_lock); 3117 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3118 (uintmax_t)lun->lun); 3119 3120 /* 3121 * Bail out as soon as we see that we've overfilled 3122 * the buffer. 3123 */ 3124 if (retval != 0) 3125 break; 3126 3127 retval = sbuf_printf(sb, "\t<backend_type>%s" 3128 "</backend_type>\n", 3129 (lun->backend == NULL) ? "none" : 3130 lun->backend->name); 3131 3132 if (retval != 0) 3133 break; 3134 3135 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3136 lun->be_lun->lun_type); 3137 3138 if (retval != 0) 3139 break; 3140 3141 if (lun->backend == NULL) { 3142 retval = sbuf_printf(sb, "</lun>\n"); 3143 if (retval != 0) 3144 break; 3145 continue; 3146 } 3147 3148 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3149 (lun->be_lun->maxlba > 0) ? 3150 lun->be_lun->maxlba + 1 : 0); 3151 3152 if (retval != 0) 3153 break; 3154 3155 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3156 lun->be_lun->blocksize); 3157 3158 if (retval != 0) 3159 break; 3160 3161 retval = sbuf_printf(sb, "\t<serial_number>"); 3162 3163 if (retval != 0) 3164 break; 3165 3166 retval = ctl_sbuf_printf_esc(sb, 3167 lun->be_lun->serial_num); 3168 3169 if (retval != 0) 3170 break; 3171 3172 retval = sbuf_printf(sb, "</serial_number>\n"); 3173 3174 if (retval != 0) 3175 break; 3176 3177 retval = sbuf_printf(sb, "\t<device_id>"); 3178 3179 if (retval != 0) 3180 break; 3181 3182 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3183 3184 if (retval != 0) 3185 break; 3186 3187 retval = sbuf_printf(sb, "</device_id>\n"); 3188 3189 if (retval != 0) 3190 break; 3191 3192 if (lun->backend->lun_info != NULL) { 3193 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3194 if (retval != 0) 3195 break; 3196 } 3197 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3198 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3199 opt->name, opt->value, opt->name); 3200 if (retval != 0) 3201 break; 3202 } 3203 3204 retval = sbuf_printf(sb, "</lun>\n"); 3205 3206 if (retval != 0) 3207 break; 3208 mtx_unlock(&lun->lun_lock); 3209 } 3210 if (lun != NULL) 3211 mtx_unlock(&lun->lun_lock); 3212 mtx_unlock(&softc->ctl_lock); 3213 3214 if ((retval != 0) 3215 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3216 retval = 0; 3217 sbuf_delete(sb); 3218 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3219 snprintf(list->error_str, sizeof(list->error_str), 3220 "Out of space, %d bytes is too small", 3221 list->alloc_len); 3222 break; 3223 } 3224 3225 sbuf_finish(sb); 3226 3227 retval = copyout(sbuf_data(sb), list->lun_xml, 3228 sbuf_len(sb) + 1); 3229 3230 list->fill_len = sbuf_len(sb) + 1; 3231 list->status = CTL_LUN_LIST_OK; 3232 sbuf_delete(sb); 3233 break; 3234 } 3235 case CTL_ISCSI: { 3236 struct ctl_iscsi *ci; 3237 struct ctl_frontend *fe; 3238 3239 ci = (struct ctl_iscsi *)addr; 3240 3241 fe = ctl_frontend_find("iscsi"); 3242 if (fe == NULL) { 3243 ci->status = CTL_ISCSI_ERROR; 3244 snprintf(ci->error_str, sizeof(ci->error_str), 3245 "Frontend \"iscsi\" not found."); 3246 break; 3247 } 3248 3249 retval = fe->ioctl(dev, cmd, addr, flag, td); 3250 break; 3251 } 3252 case CTL_PORT_REQ: { 3253 struct ctl_req *req; 3254 struct ctl_frontend *fe; 3255 3256 req = (struct ctl_req *)addr; 3257 3258 fe = ctl_frontend_find(req->driver); 3259 if (fe == NULL) { 3260 req->status = CTL_LUN_ERROR; 3261 snprintf(req->error_str, sizeof(req->error_str), 3262 "Frontend \"%s\" not found.", req->driver); 3263 break; 3264 } 3265 if (req->num_args > 0) { 3266 req->kern_args = ctl_copyin_args(req->num_args, 3267 req->args, req->error_str, sizeof(req->error_str)); 3268 if (req->kern_args == NULL) { 3269 req->status = CTL_LUN_ERROR; 3270 break; 3271 } 3272 } 3273 3274 retval = fe->ioctl(dev, cmd, addr, flag, td); 3275 3276 if (req->num_args > 0) { 3277 ctl_copyout_args(req->num_args, req->kern_args); 3278 ctl_free_args(req->num_args, req->kern_args); 3279 } 3280 break; 3281 } 3282 case CTL_PORT_LIST: { 3283 struct sbuf *sb; 3284 struct ctl_port *port; 3285 struct ctl_lun_list *list; 3286 struct ctl_option *opt; 3287 3288 list = (struct ctl_lun_list *)addr; 3289 3290 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3291 if (sb == NULL) { 3292 list->status = CTL_LUN_LIST_ERROR; 3293 snprintf(list->error_str, sizeof(list->error_str), 3294 "Unable to allocate %d bytes for LUN list", 3295 list->alloc_len); 3296 break; 3297 } 3298 3299 sbuf_printf(sb, "<ctlportlist>\n"); 3300 3301 mtx_lock(&softc->ctl_lock); 3302 STAILQ_FOREACH(port, &softc->port_list, links) { 3303 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3304 (uintmax_t)port->targ_port); 3305 3306 /* 3307 * Bail out as soon as we see that we've overfilled 3308 * the buffer. 3309 */ 3310 if (retval != 0) 3311 break; 3312 3313 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3314 "</frontend_type>\n", port->frontend->name); 3315 if (retval != 0) 3316 break; 3317 3318 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3319 port->port_type); 3320 if (retval != 0) 3321 break; 3322 3323 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3324 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3325 if (retval != 0) 3326 break; 3327 3328 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3329 port->port_name); 3330 if (retval != 0) 3331 break; 3332 3333 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3334 port->physical_port); 3335 if (retval != 0) 3336 break; 3337 3338 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3339 port->virtual_port); 3340 if (retval != 0) 3341 break; 3342 3343 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3344 (uintmax_t)port->wwnn); 3345 if (retval != 0) 3346 break; 3347 3348 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3349 (uintmax_t)port->wwpn); 3350 if (retval != 0) 3351 break; 3352 3353 if (port->port_info != NULL) { 3354 retval = port->port_info(port->onoff_arg, sb); 3355 if (retval != 0) 3356 break; 3357 } 3358 STAILQ_FOREACH(opt, &port->options, links) { 3359 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3360 opt->name, opt->value, opt->name); 3361 if (retval != 0) 3362 break; 3363 } 3364 3365 retval = sbuf_printf(sb, "</targ_port>\n"); 3366 if (retval != 0) 3367 break; 3368 } 3369 mtx_unlock(&softc->ctl_lock); 3370 3371 if ((retval != 0) 3372 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3373 retval = 0; 3374 sbuf_delete(sb); 3375 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3376 snprintf(list->error_str, sizeof(list->error_str), 3377 "Out of space, %d bytes is too small", 3378 list->alloc_len); 3379 break; 3380 } 3381 3382 sbuf_finish(sb); 3383 3384 retval = copyout(sbuf_data(sb), list->lun_xml, 3385 sbuf_len(sb) + 1); 3386 3387 list->fill_len = sbuf_len(sb) + 1; 3388 list->status = CTL_LUN_LIST_OK; 3389 sbuf_delete(sb); 3390 break; 3391 } 3392 default: { 3393 /* XXX KDM should we fix this? */ 3394#if 0 3395 struct ctl_backend_driver *backend; 3396 unsigned int type; 3397 int found; 3398 3399 found = 0; 3400 3401 /* 3402 * We encode the backend type as the ioctl type for backend 3403 * ioctls. So parse it out here, and then search for a 3404 * backend of this type. 3405 */ 3406 type = _IOC_TYPE(cmd); 3407 3408 STAILQ_FOREACH(backend, &softc->be_list, links) { 3409 if (backend->type == type) { 3410 found = 1; 3411 break; 3412 } 3413 } 3414 if (found == 0) { 3415 printf("ctl: unknown ioctl command %#lx or backend " 3416 "%d\n", cmd, type); 3417 retval = EINVAL; 3418 break; 3419 } 3420 retval = backend->ioctl(dev, cmd, addr, flag, td); 3421#endif 3422 retval = ENOTTY; 3423 break; 3424 } 3425 } 3426 return (retval); 3427} 3428 3429uint32_t 3430ctl_get_initindex(struct ctl_nexus *nexus) 3431{ 3432 if (nexus->targ_port < CTL_MAX_PORTS) 3433 return (nexus->initid.id + 3434 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3435 else 3436 return (nexus->initid.id + 3437 ((nexus->targ_port - CTL_MAX_PORTS) * 3438 CTL_MAX_INIT_PER_PORT)); 3439} 3440 3441uint32_t 3442ctl_get_resindex(struct ctl_nexus *nexus) 3443{ 3444 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3445} 3446 3447uint32_t 3448ctl_port_idx(int port_num) 3449{ 3450 if (port_num < CTL_MAX_PORTS) 3451 return(port_num); 3452 else 3453 return(port_num - CTL_MAX_PORTS); 3454} 3455 3456static uint32_t 3457ctl_map_lun(int port_num, uint32_t lun_id) 3458{ 3459 struct ctl_port *port; 3460 3461 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3462 if (port == NULL) 3463 return (UINT32_MAX); 3464 if (port->lun_map == NULL) 3465 return (lun_id); 3466 return (port->lun_map(port->targ_lun_arg, lun_id)); 3467} 3468 3469static uint32_t 3470ctl_map_lun_back(int port_num, uint32_t lun_id) 3471{ 3472 struct ctl_port *port; 3473 uint32_t i; 3474 3475 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3476 if (port->lun_map == NULL) 3477 return (lun_id); 3478 for (i = 0; i < CTL_MAX_LUNS; i++) { 3479 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3480 return (i); 3481 } 3482 return (UINT32_MAX); 3483} 3484 3485/* 3486 * Note: This only works for bitmask sizes that are at least 32 bits, and 3487 * that are a power of 2. 3488 */ 3489int 3490ctl_ffz(uint32_t *mask, uint32_t size) 3491{ 3492 uint32_t num_chunks, num_pieces; 3493 int i, j; 3494 3495 num_chunks = (size >> 5); 3496 if (num_chunks == 0) 3497 num_chunks++; 3498 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3499 3500 for (i = 0; i < num_chunks; i++) { 3501 for (j = 0; j < num_pieces; j++) { 3502 if ((mask[i] & (1 << j)) == 0) 3503 return ((i << 5) + j); 3504 } 3505 } 3506 3507 return (-1); 3508} 3509 3510int 3511ctl_set_mask(uint32_t *mask, uint32_t bit) 3512{ 3513 uint32_t chunk, piece; 3514 3515 chunk = bit >> 5; 3516 piece = bit % (sizeof(uint32_t) * 8); 3517 3518 if ((mask[chunk] & (1 << piece)) != 0) 3519 return (-1); 3520 else 3521 mask[chunk] |= (1 << piece); 3522 3523 return (0); 3524} 3525 3526int 3527ctl_clear_mask(uint32_t *mask, uint32_t bit) 3528{ 3529 uint32_t chunk, piece; 3530 3531 chunk = bit >> 5; 3532 piece = bit % (sizeof(uint32_t) * 8); 3533 3534 if ((mask[chunk] & (1 << piece)) == 0) 3535 return (-1); 3536 else 3537 mask[chunk] &= ~(1 << piece); 3538 3539 return (0); 3540} 3541 3542int 3543ctl_is_set(uint32_t *mask, uint32_t bit) 3544{ 3545 uint32_t chunk, piece; 3546 3547 chunk = bit >> 5; 3548 piece = bit % (sizeof(uint32_t) * 8); 3549 3550 if ((mask[chunk] & (1 << piece)) == 0) 3551 return (0); 3552 else 3553 return (1); 3554} 3555 3556#ifdef unused 3557/* 3558 * The bus, target and lun are optional, they can be filled in later. 3559 * can_wait is used to determine whether we can wait on the malloc or not. 3560 */ 3561union ctl_io* 3562ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3563 uint32_t targ_lun, int can_wait) 3564{ 3565 union ctl_io *io; 3566 3567 if (can_wait) 3568 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3569 else 3570 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3571 3572 if (io != NULL) { 3573 io->io_hdr.io_type = io_type; 3574 io->io_hdr.targ_port = targ_port; 3575 /* 3576 * XXX KDM this needs to change/go away. We need to move 3577 * to a preallocated pool of ctl_scsiio structures. 3578 */ 3579 io->io_hdr.nexus.targ_target.id = targ_target; 3580 io->io_hdr.nexus.targ_lun = targ_lun; 3581 } 3582 3583 return (io); 3584} 3585 3586void 3587ctl_kfree_io(union ctl_io *io) 3588{ 3589 free(io, M_CTL); 3590} 3591#endif /* unused */ 3592 3593/* 3594 * ctl_softc, pool_type, total_ctl_io are passed in. 3595 * npool is passed out. 3596 */ 3597int 3598ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3599 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3600{ 3601 uint32_t i; 3602 union ctl_io *cur_io, *next_io; 3603 struct ctl_io_pool *pool; 3604 int retval; 3605 3606 retval = 0; 3607 3608 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3609 M_NOWAIT | M_ZERO); 3610 if (pool == NULL) { 3611 retval = ENOMEM; 3612 goto bailout; 3613 } 3614 3615 pool->type = pool_type; 3616 pool->ctl_softc = ctl_softc; 3617 3618 mtx_lock(&ctl_softc->pool_lock); 3619 pool->id = ctl_softc->cur_pool_id++; 3620 mtx_unlock(&ctl_softc->pool_lock); 3621 3622 pool->flags = CTL_POOL_FLAG_NONE; 3623 pool->refcount = 1; /* Reference for validity. */ 3624 STAILQ_INIT(&pool->free_queue); 3625 3626 /* 3627 * XXX KDM other options here: 3628 * - allocate a page at a time 3629 * - allocate one big chunk of memory. 3630 * Page allocation might work well, but would take a little more 3631 * tracking. 3632 */ 3633 for (i = 0; i < total_ctl_io; i++) { 3634 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3635 M_NOWAIT); 3636 if (cur_io == NULL) { 3637 retval = ENOMEM; 3638 break; 3639 } 3640 cur_io->io_hdr.pool = pool; 3641 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3642 pool->total_ctl_io++; 3643 pool->free_ctl_io++; 3644 } 3645 3646 if (retval != 0) { 3647 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3648 cur_io != NULL; cur_io = next_io) { 3649 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3650 links); 3651 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3652 ctl_io_hdr, links); 3653 free(cur_io, M_CTLIO); 3654 } 3655 3656 free(pool, M_CTL); 3657 goto bailout; 3658 } 3659 mtx_lock(&ctl_softc->pool_lock); 3660 ctl_softc->num_pools++; 3661 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3662 /* 3663 * Increment our usage count if this is an external consumer, so we 3664 * can't get unloaded until the external consumer (most likely a 3665 * FETD) unloads and frees his pool. 3666 * 3667 * XXX KDM will this increment the caller's module use count, or 3668 * mine? 3669 */ 3670#if 0 3671 if ((pool_type != CTL_POOL_EMERGENCY) 3672 && (pool_type != CTL_POOL_INTERNAL) 3673 && (pool_type != CTL_POOL_4OTHERSC)) 3674 MOD_INC_USE_COUNT; 3675#endif 3676 3677 mtx_unlock(&ctl_softc->pool_lock); 3678 3679 *npool = pool; 3680 3681bailout: 3682 3683 return (retval); 3684} 3685 3686static int 3687ctl_pool_acquire(struct ctl_io_pool *pool) 3688{ 3689 3690 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3691 3692 if (pool->flags & CTL_POOL_FLAG_INVALID) 3693 return (EINVAL); 3694 3695 pool->refcount++; 3696 3697 return (0); 3698} 3699 3700static void 3701ctl_pool_release(struct ctl_io_pool *pool) 3702{ 3703 struct ctl_softc *ctl_softc = pool->ctl_softc; 3704 union ctl_io *io; 3705 3706 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3707 3708 if (--pool->refcount != 0) 3709 return; 3710 3711 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3712 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3713 links); 3714 free(io, M_CTLIO); 3715 } 3716 3717 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3718 ctl_softc->num_pools--; 3719 3720 /* 3721 * XXX KDM will this decrement the caller's usage count or mine? 3722 */ 3723#if 0 3724 if ((pool->type != CTL_POOL_EMERGENCY) 3725 && (pool->type != CTL_POOL_INTERNAL) 3726 && (pool->type != CTL_POOL_4OTHERSC)) 3727 MOD_DEC_USE_COUNT; 3728#endif 3729 3730 free(pool, M_CTL); 3731} 3732 3733void 3734ctl_pool_free(struct ctl_io_pool *pool) 3735{ 3736 struct ctl_softc *ctl_softc; 3737 3738 if (pool == NULL) 3739 return; 3740 3741 ctl_softc = pool->ctl_softc; 3742 mtx_lock(&ctl_softc->pool_lock); 3743 pool->flags |= CTL_POOL_FLAG_INVALID; 3744 ctl_pool_release(pool); 3745 mtx_unlock(&ctl_softc->pool_lock); 3746} 3747 3748/* 3749 * This routine does not block (except for spinlocks of course). 3750 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3751 * possible. 3752 */ 3753union ctl_io * 3754ctl_alloc_io(void *pool_ref) 3755{ 3756 union ctl_io *io; 3757 struct ctl_softc *ctl_softc; 3758 struct ctl_io_pool *pool, *npool; 3759 struct ctl_io_pool *emergency_pool; 3760 3761 pool = (struct ctl_io_pool *)pool_ref; 3762 3763 if (pool == NULL) { 3764 printf("%s: pool is NULL\n", __func__); 3765 return (NULL); 3766 } 3767 3768 emergency_pool = NULL; 3769 3770 ctl_softc = pool->ctl_softc; 3771 3772 mtx_lock(&ctl_softc->pool_lock); 3773 /* 3774 * First, try to get the io structure from the user's pool. 3775 */ 3776 if (ctl_pool_acquire(pool) == 0) { 3777 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3778 if (io != NULL) { 3779 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3780 pool->total_allocated++; 3781 pool->free_ctl_io--; 3782 mtx_unlock(&ctl_softc->pool_lock); 3783 return (io); 3784 } else 3785 ctl_pool_release(pool); 3786 } 3787 /* 3788 * If he doesn't have any io structures left, search for an 3789 * emergency pool and grab one from there. 3790 */ 3791 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3792 if (npool->type != CTL_POOL_EMERGENCY) 3793 continue; 3794 3795 if (ctl_pool_acquire(npool) != 0) 3796 continue; 3797 3798 emergency_pool = npool; 3799 3800 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3801 if (io != NULL) { 3802 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3803 npool->total_allocated++; 3804 npool->free_ctl_io--; 3805 mtx_unlock(&ctl_softc->pool_lock); 3806 return (io); 3807 } else 3808 ctl_pool_release(npool); 3809 } 3810 3811 /* Drop the spinlock before we malloc */ 3812 mtx_unlock(&ctl_softc->pool_lock); 3813 3814 /* 3815 * The emergency pool (if it exists) didn't have one, so try an 3816 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3817 */ 3818 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3819 if (io != NULL) { 3820 /* 3821 * If the emergency pool exists but is empty, add this 3822 * ctl_io to its list when it gets freed. 3823 */ 3824 if (emergency_pool != NULL) { 3825 mtx_lock(&ctl_softc->pool_lock); 3826 if (ctl_pool_acquire(emergency_pool) == 0) { 3827 io->io_hdr.pool = emergency_pool; 3828 emergency_pool->total_ctl_io++; 3829 /* 3830 * Need to bump this, otherwise 3831 * total_allocated and total_freed won't 3832 * match when we no longer have anything 3833 * outstanding. 3834 */ 3835 emergency_pool->total_allocated++; 3836 } 3837 mtx_unlock(&ctl_softc->pool_lock); 3838 } else 3839 io->io_hdr.pool = NULL; 3840 } 3841 3842 return (io); 3843} 3844 3845void 3846ctl_free_io(union ctl_io *io) 3847{ 3848 if (io == NULL) 3849 return; 3850 3851 /* 3852 * If this ctl_io has a pool, return it to that pool. 3853 */ 3854 if (io->io_hdr.pool != NULL) { 3855 struct ctl_io_pool *pool; 3856 3857 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3858 mtx_lock(&pool->ctl_softc->pool_lock); 3859 io->io_hdr.io_type = 0xff; 3860 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3861 pool->total_freed++; 3862 pool->free_ctl_io++; 3863 ctl_pool_release(pool); 3864 mtx_unlock(&pool->ctl_softc->pool_lock); 3865 } else { 3866 /* 3867 * Otherwise, just free it. We probably malloced it and 3868 * the emergency pool wasn't available. 3869 */ 3870 free(io, M_CTLIO); 3871 } 3872 3873} 3874 3875void 3876ctl_zero_io(union ctl_io *io) 3877{ 3878 void *pool_ref; 3879 3880 if (io == NULL) 3881 return; 3882 3883 /* 3884 * May need to preserve linked list pointers at some point too. 3885 */ 3886 pool_ref = io->io_hdr.pool; 3887 3888 memset(io, 0, sizeof(*io)); 3889 3890 io->io_hdr.pool = pool_ref; 3891} 3892 3893/* 3894 * This routine is currently used for internal copies of ctl_ios that need 3895 * to persist for some reason after we've already returned status to the 3896 * FETD. (Thus the flag set.) 3897 * 3898 * XXX XXX 3899 * Note that this makes a blind copy of all fields in the ctl_io, except 3900 * for the pool reference. This includes any memory that has been 3901 * allocated! That memory will no longer be valid after done has been 3902 * called, so this would be VERY DANGEROUS for command that actually does 3903 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3904 * start and stop commands, which don't transfer any data, so this is not a 3905 * problem. If it is used for anything else, the caller would also need to 3906 * allocate data buffer space and this routine would need to be modified to 3907 * copy the data buffer(s) as well. 3908 */ 3909void 3910ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3911{ 3912 void *pool_ref; 3913 3914 if ((src == NULL) 3915 || (dest == NULL)) 3916 return; 3917 3918 /* 3919 * May need to preserve linked list pointers at some point too. 3920 */ 3921 pool_ref = dest->io_hdr.pool; 3922 3923 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3924 3925 dest->io_hdr.pool = pool_ref; 3926 /* 3927 * We need to know that this is an internal copy, and doesn't need 3928 * to get passed back to the FETD that allocated it. 3929 */ 3930 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3931} 3932 3933#ifdef NEEDTOPORT 3934static void 3935ctl_update_power_subpage(struct copan_power_subpage *page) 3936{ 3937 int num_luns, num_partitions, config_type; 3938 struct ctl_softc *softc; 3939 cs_BOOL_t aor_present, shelf_50pct_power; 3940 cs_raidset_personality_t rs_type; 3941 int max_active_luns; 3942 3943 softc = control_softc; 3944 3945 /* subtract out the processor LUN */ 3946 num_luns = softc->num_luns - 1; 3947 /* 3948 * Default to 7 LUNs active, which was the only number we allowed 3949 * in the past. 3950 */ 3951 max_active_luns = 7; 3952 3953 num_partitions = config_GetRsPartitionInfo(); 3954 config_type = config_GetConfigType(); 3955 shelf_50pct_power = config_GetShelfPowerMode(); 3956 aor_present = config_IsAorRsPresent(); 3957 3958 rs_type = ddb_GetRsRaidType(1); 3959 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3960 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3961 EPRINT(0, "Unsupported RS type %d!", rs_type); 3962 } 3963 3964 3965 page->total_luns = num_luns; 3966 3967 switch (config_type) { 3968 case 40: 3969 /* 3970 * In a 40 drive configuration, it doesn't matter what DC 3971 * cards we have, whether we have AOR enabled or not, 3972 * partitioning or not, or what type of RAIDset we have. 3973 * In that scenario, we can power up every LUN we present 3974 * to the user. 3975 */ 3976 max_active_luns = num_luns; 3977 3978 break; 3979 case 64: 3980 if (shelf_50pct_power == CS_FALSE) { 3981 /* 25% power */ 3982 if (aor_present == CS_TRUE) { 3983 if (rs_type == 3984 CS_RAIDSET_PERSONALITY_RAID5) { 3985 max_active_luns = 7; 3986 } else if (rs_type == 3987 CS_RAIDSET_PERSONALITY_RAID1){ 3988 max_active_luns = 14; 3989 } else { 3990 /* XXX KDM now what?? */ 3991 } 3992 } else { 3993 if (rs_type == 3994 CS_RAIDSET_PERSONALITY_RAID5) { 3995 max_active_luns = 8; 3996 } else if (rs_type == 3997 CS_RAIDSET_PERSONALITY_RAID1){ 3998 max_active_luns = 16; 3999 } else { 4000 /* XXX KDM now what?? */ 4001 } 4002 } 4003 } else { 4004 /* 50% power */ 4005 /* 4006 * With 50% power in a 64 drive configuration, we 4007 * can power all LUNs we present. 4008 */ 4009 max_active_luns = num_luns; 4010 } 4011 break; 4012 case 112: 4013 if (shelf_50pct_power == CS_FALSE) { 4014 /* 25% power */ 4015 if (aor_present == CS_TRUE) { 4016 if (rs_type == 4017 CS_RAIDSET_PERSONALITY_RAID5) { 4018 max_active_luns = 7; 4019 } else if (rs_type == 4020 CS_RAIDSET_PERSONALITY_RAID1){ 4021 max_active_luns = 14; 4022 } else { 4023 /* XXX KDM now what?? */ 4024 } 4025 } else { 4026 if (rs_type == 4027 CS_RAIDSET_PERSONALITY_RAID5) { 4028 max_active_luns = 8; 4029 } else if (rs_type == 4030 CS_RAIDSET_PERSONALITY_RAID1){ 4031 max_active_luns = 16; 4032 } else { 4033 /* XXX KDM now what?? */ 4034 } 4035 } 4036 } else { 4037 /* 50% power */ 4038 if (aor_present == CS_TRUE) { 4039 if (rs_type == 4040 CS_RAIDSET_PERSONALITY_RAID5) { 4041 max_active_luns = 14; 4042 } else if (rs_type == 4043 CS_RAIDSET_PERSONALITY_RAID1){ 4044 /* 4045 * We're assuming here that disk 4046 * caching is enabled, and so we're 4047 * able to power up half of each 4048 * LUN, and cache all writes. 4049 */ 4050 max_active_luns = num_luns; 4051 } else { 4052 /* XXX KDM now what?? */ 4053 } 4054 } else { 4055 if (rs_type == 4056 CS_RAIDSET_PERSONALITY_RAID5) { 4057 max_active_luns = 15; 4058 } else if (rs_type == 4059 CS_RAIDSET_PERSONALITY_RAID1){ 4060 max_active_luns = 30; 4061 } else { 4062 /* XXX KDM now what?? */ 4063 } 4064 } 4065 } 4066 break; 4067 default: 4068 /* 4069 * In this case, we have an unknown configuration, so we 4070 * just use the default from above. 4071 */ 4072 break; 4073 } 4074 4075 page->max_active_luns = max_active_luns; 4076#if 0 4077 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4078 page->total_luns, page->max_active_luns); 4079#endif 4080} 4081#endif /* NEEDTOPORT */ 4082 4083/* 4084 * This routine could be used in the future to load default and/or saved 4085 * mode page parameters for a particuar lun. 4086 */ 4087static int 4088ctl_init_page_index(struct ctl_lun *lun) 4089{ 4090 int i; 4091 struct ctl_page_index *page_index; 4092 struct ctl_softc *softc; 4093 4094 memcpy(&lun->mode_pages.index, page_index_template, 4095 sizeof(page_index_template)); 4096 4097 softc = lun->ctl_softc; 4098 4099 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4100 4101 page_index = &lun->mode_pages.index[i]; 4102 /* 4103 * If this is a disk-only mode page, there's no point in 4104 * setting it up. For some pages, we have to have some 4105 * basic information about the disk in order to calculate the 4106 * mode page data. 4107 */ 4108 if ((lun->be_lun->lun_type != T_DIRECT) 4109 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4110 continue; 4111 4112 switch (page_index->page_code & SMPH_PC_MASK) { 4113 case SMS_FORMAT_DEVICE_PAGE: { 4114 struct scsi_format_page *format_page; 4115 4116 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4117 panic("subpage is incorrect!"); 4118 4119 /* 4120 * Sectors per track are set above. Bytes per 4121 * sector need to be set here on a per-LUN basis. 4122 */ 4123 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4124 &format_page_default, 4125 sizeof(format_page_default)); 4126 memcpy(&lun->mode_pages.format_page[ 4127 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4128 sizeof(format_page_changeable)); 4129 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4130 &format_page_default, 4131 sizeof(format_page_default)); 4132 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4133 &format_page_default, 4134 sizeof(format_page_default)); 4135 4136 format_page = &lun->mode_pages.format_page[ 4137 CTL_PAGE_CURRENT]; 4138 scsi_ulto2b(lun->be_lun->blocksize, 4139 format_page->bytes_per_sector); 4140 4141 format_page = &lun->mode_pages.format_page[ 4142 CTL_PAGE_DEFAULT]; 4143 scsi_ulto2b(lun->be_lun->blocksize, 4144 format_page->bytes_per_sector); 4145 4146 format_page = &lun->mode_pages.format_page[ 4147 CTL_PAGE_SAVED]; 4148 scsi_ulto2b(lun->be_lun->blocksize, 4149 format_page->bytes_per_sector); 4150 4151 page_index->page_data = 4152 (uint8_t *)lun->mode_pages.format_page; 4153 break; 4154 } 4155 case SMS_RIGID_DISK_PAGE: { 4156 struct scsi_rigid_disk_page *rigid_disk_page; 4157 uint32_t sectors_per_cylinder; 4158 uint64_t cylinders; 4159#ifndef __XSCALE__ 4160 int shift; 4161#endif /* !__XSCALE__ */ 4162 4163 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4164 panic("invalid subpage value %d", 4165 page_index->subpage); 4166 4167 /* 4168 * Rotation rate and sectors per track are set 4169 * above. We calculate the cylinders here based on 4170 * capacity. Due to the number of heads and 4171 * sectors per track we're using, smaller arrays 4172 * may turn out to have 0 cylinders. Linux and 4173 * FreeBSD don't pay attention to these mode pages 4174 * to figure out capacity, but Solaris does. It 4175 * seems to deal with 0 cylinders just fine, and 4176 * works out a fake geometry based on the capacity. 4177 */ 4178 memcpy(&lun->mode_pages.rigid_disk_page[ 4179 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4180 sizeof(rigid_disk_page_default)); 4181 memcpy(&lun->mode_pages.rigid_disk_page[ 4182 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4183 sizeof(rigid_disk_page_changeable)); 4184 memcpy(&lun->mode_pages.rigid_disk_page[ 4185 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4186 sizeof(rigid_disk_page_default)); 4187 memcpy(&lun->mode_pages.rigid_disk_page[ 4188 CTL_PAGE_SAVED], &rigid_disk_page_default, 4189 sizeof(rigid_disk_page_default)); 4190 4191 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4192 CTL_DEFAULT_HEADS; 4193 4194 /* 4195 * The divide method here will be more accurate, 4196 * probably, but results in floating point being 4197 * used in the kernel on i386 (__udivdi3()). On the 4198 * XScale, though, __udivdi3() is implemented in 4199 * software. 4200 * 4201 * The shift method for cylinder calculation is 4202 * accurate if sectors_per_cylinder is a power of 4203 * 2. Otherwise it might be slightly off -- you 4204 * might have a bit of a truncation problem. 4205 */ 4206#ifdef __XSCALE__ 4207 cylinders = (lun->be_lun->maxlba + 1) / 4208 sectors_per_cylinder; 4209#else 4210 for (shift = 31; shift > 0; shift--) { 4211 if (sectors_per_cylinder & (1 << shift)) 4212 break; 4213 } 4214 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4215#endif 4216 4217 /* 4218 * We've basically got 3 bytes, or 24 bits for the 4219 * cylinder size in the mode page. If we're over, 4220 * just round down to 2^24. 4221 */ 4222 if (cylinders > 0xffffff) 4223 cylinders = 0xffffff; 4224 4225 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4226 CTL_PAGE_CURRENT]; 4227 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4228 4229 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4230 CTL_PAGE_DEFAULT]; 4231 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4232 4233 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4234 CTL_PAGE_SAVED]; 4235 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4236 4237 page_index->page_data = 4238 (uint8_t *)lun->mode_pages.rigid_disk_page; 4239 break; 4240 } 4241 case SMS_CACHING_PAGE: { 4242 4243 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4244 panic("invalid subpage value %d", 4245 page_index->subpage); 4246 /* 4247 * Defaults should be okay here, no calculations 4248 * needed. 4249 */ 4250 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4251 &caching_page_default, 4252 sizeof(caching_page_default)); 4253 memcpy(&lun->mode_pages.caching_page[ 4254 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4255 sizeof(caching_page_changeable)); 4256 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4257 &caching_page_default, 4258 sizeof(caching_page_default)); 4259 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4260 &caching_page_default, 4261 sizeof(caching_page_default)); 4262 page_index->page_data = 4263 (uint8_t *)lun->mode_pages.caching_page; 4264 break; 4265 } 4266 case SMS_CONTROL_MODE_PAGE: { 4267 4268 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4269 panic("invalid subpage value %d", 4270 page_index->subpage); 4271 4272 /* 4273 * Defaults should be okay here, no calculations 4274 * needed. 4275 */ 4276 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4277 &control_page_default, 4278 sizeof(control_page_default)); 4279 memcpy(&lun->mode_pages.control_page[ 4280 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4281 sizeof(control_page_changeable)); 4282 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4283 &control_page_default, 4284 sizeof(control_page_default)); 4285 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4286 &control_page_default, 4287 sizeof(control_page_default)); 4288 page_index->page_data = 4289 (uint8_t *)lun->mode_pages.control_page; 4290 break; 4291 4292 } 4293 case SMS_VENDOR_SPECIFIC_PAGE:{ 4294 switch (page_index->subpage) { 4295 case PWR_SUBPAGE_CODE: { 4296 struct copan_power_subpage *current_page, 4297 *saved_page; 4298 4299 memcpy(&lun->mode_pages.power_subpage[ 4300 CTL_PAGE_CURRENT], 4301 &power_page_default, 4302 sizeof(power_page_default)); 4303 memcpy(&lun->mode_pages.power_subpage[ 4304 CTL_PAGE_CHANGEABLE], 4305 &power_page_changeable, 4306 sizeof(power_page_changeable)); 4307 memcpy(&lun->mode_pages.power_subpage[ 4308 CTL_PAGE_DEFAULT], 4309 &power_page_default, 4310 sizeof(power_page_default)); 4311 memcpy(&lun->mode_pages.power_subpage[ 4312 CTL_PAGE_SAVED], 4313 &power_page_default, 4314 sizeof(power_page_default)); 4315 page_index->page_data = 4316 (uint8_t *)lun->mode_pages.power_subpage; 4317 4318 current_page = (struct copan_power_subpage *) 4319 (page_index->page_data + 4320 (page_index->page_len * 4321 CTL_PAGE_CURRENT)); 4322 saved_page = (struct copan_power_subpage *) 4323 (page_index->page_data + 4324 (page_index->page_len * 4325 CTL_PAGE_SAVED)); 4326 break; 4327 } 4328 case APS_SUBPAGE_CODE: { 4329 struct copan_aps_subpage *current_page, 4330 *saved_page; 4331 4332 // This gets set multiple times but 4333 // it should always be the same. It's 4334 // only done during init so who cares. 4335 index_to_aps_page = i; 4336 4337 memcpy(&lun->mode_pages.aps_subpage[ 4338 CTL_PAGE_CURRENT], 4339 &aps_page_default, 4340 sizeof(aps_page_default)); 4341 memcpy(&lun->mode_pages.aps_subpage[ 4342 CTL_PAGE_CHANGEABLE], 4343 &aps_page_changeable, 4344 sizeof(aps_page_changeable)); 4345 memcpy(&lun->mode_pages.aps_subpage[ 4346 CTL_PAGE_DEFAULT], 4347 &aps_page_default, 4348 sizeof(aps_page_default)); 4349 memcpy(&lun->mode_pages.aps_subpage[ 4350 CTL_PAGE_SAVED], 4351 &aps_page_default, 4352 sizeof(aps_page_default)); 4353 page_index->page_data = 4354 (uint8_t *)lun->mode_pages.aps_subpage; 4355 4356 current_page = (struct copan_aps_subpage *) 4357 (page_index->page_data + 4358 (page_index->page_len * 4359 CTL_PAGE_CURRENT)); 4360 saved_page = (struct copan_aps_subpage *) 4361 (page_index->page_data + 4362 (page_index->page_len * 4363 CTL_PAGE_SAVED)); 4364 break; 4365 } 4366 case DBGCNF_SUBPAGE_CODE: { 4367 struct copan_debugconf_subpage *current_page, 4368 *saved_page; 4369 4370 memcpy(&lun->mode_pages.debugconf_subpage[ 4371 CTL_PAGE_CURRENT], 4372 &debugconf_page_default, 4373 sizeof(debugconf_page_default)); 4374 memcpy(&lun->mode_pages.debugconf_subpage[ 4375 CTL_PAGE_CHANGEABLE], 4376 &debugconf_page_changeable, 4377 sizeof(debugconf_page_changeable)); 4378 memcpy(&lun->mode_pages.debugconf_subpage[ 4379 CTL_PAGE_DEFAULT], 4380 &debugconf_page_default, 4381 sizeof(debugconf_page_default)); 4382 memcpy(&lun->mode_pages.debugconf_subpage[ 4383 CTL_PAGE_SAVED], 4384 &debugconf_page_default, 4385 sizeof(debugconf_page_default)); 4386 page_index->page_data = 4387 (uint8_t *)lun->mode_pages.debugconf_subpage; 4388 4389 current_page = (struct copan_debugconf_subpage *) 4390 (page_index->page_data + 4391 (page_index->page_len * 4392 CTL_PAGE_CURRENT)); 4393 saved_page = (struct copan_debugconf_subpage *) 4394 (page_index->page_data + 4395 (page_index->page_len * 4396 CTL_PAGE_SAVED)); 4397 break; 4398 } 4399 default: 4400 panic("invalid subpage value %d", 4401 page_index->subpage); 4402 break; 4403 } 4404 break; 4405 } 4406 default: 4407 panic("invalid page value %d", 4408 page_index->page_code & SMPH_PC_MASK); 4409 break; 4410 } 4411 } 4412 4413 return (CTL_RETVAL_COMPLETE); 4414} 4415 4416/* 4417 * LUN allocation. 4418 * 4419 * Requirements: 4420 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4421 * wants us to allocate the LUN and he can block. 4422 * - ctl_softc is always set 4423 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4424 * 4425 * Returns 0 for success, non-zero (errno) for failure. 4426 */ 4427static int 4428ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4429 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4430{ 4431 struct ctl_lun *nlun, *lun; 4432 struct ctl_port *port; 4433 struct scsi_vpd_id_descriptor *desc; 4434 struct scsi_vpd_id_t10 *t10id; 4435 const char *scsiname, *vendor; 4436 int lun_number, i, lun_malloced; 4437 int devidlen, idlen1, idlen2 = 0, len; 4438 4439 if (be_lun == NULL) 4440 return (EINVAL); 4441 4442 /* 4443 * We currently only support Direct Access or Processor LUN types. 4444 */ 4445 switch (be_lun->lun_type) { 4446 case T_DIRECT: 4447 break; 4448 case T_PROCESSOR: 4449 break; 4450 case T_SEQUENTIAL: 4451 case T_CHANGER: 4452 default: 4453 be_lun->lun_config_status(be_lun->be_lun, 4454 CTL_LUN_CONFIG_FAILURE); 4455 break; 4456 } 4457 if (ctl_lun == NULL) { 4458 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4459 lun_malloced = 1; 4460 } else { 4461 lun_malloced = 0; 4462 lun = ctl_lun; 4463 } 4464 4465 memset(lun, 0, sizeof(*lun)); 4466 if (lun_malloced) 4467 lun->flags = CTL_LUN_MALLOCED; 4468 4469 /* Generate LUN ID. */ 4470 devidlen = max(CTL_DEVID_MIN_LEN, 4471 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4472 idlen1 = sizeof(*t10id) + devidlen; 4473 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4474 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4475 if (scsiname != NULL) { 4476 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4477 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4478 } 4479 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4480 M_CTL, M_WAITOK | M_ZERO); 4481 lun->lun_devid->len = len; 4482 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4483 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4484 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4485 desc->length = idlen1; 4486 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4487 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4488 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4489 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4490 } else { 4491 strncpy(t10id->vendor, vendor, 4492 min(sizeof(t10id->vendor), strlen(vendor))); 4493 } 4494 strncpy((char *)t10id->vendor_spec_id, 4495 (char *)be_lun->device_id, devidlen); 4496 if (scsiname != NULL) { 4497 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4498 desc->length); 4499 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4500 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4501 SVPD_ID_TYPE_SCSI_NAME; 4502 desc->length = idlen2; 4503 strlcpy(desc->identifier, scsiname, idlen2); 4504 } 4505 4506 mtx_lock(&ctl_softc->ctl_lock); 4507 /* 4508 * See if the caller requested a particular LUN number. If so, see 4509 * if it is available. Otherwise, allocate the first available LUN. 4510 */ 4511 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4512 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4513 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4514 mtx_unlock(&ctl_softc->ctl_lock); 4515 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4516 printf("ctl: requested LUN ID %d is higher " 4517 "than CTL_MAX_LUNS - 1 (%d)\n", 4518 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4519 } else { 4520 /* 4521 * XXX KDM return an error, or just assign 4522 * another LUN ID in this case?? 4523 */ 4524 printf("ctl: requested LUN ID %d is already " 4525 "in use\n", be_lun->req_lun_id); 4526 } 4527 if (lun->flags & CTL_LUN_MALLOCED) 4528 free(lun, M_CTL); 4529 be_lun->lun_config_status(be_lun->be_lun, 4530 CTL_LUN_CONFIG_FAILURE); 4531 return (ENOSPC); 4532 } 4533 lun_number = be_lun->req_lun_id; 4534 } else { 4535 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4536 if (lun_number == -1) { 4537 mtx_unlock(&ctl_softc->ctl_lock); 4538 printf("ctl: can't allocate LUN on target %ju, out of " 4539 "LUNs\n", (uintmax_t)target_id.id); 4540 if (lun->flags & CTL_LUN_MALLOCED) 4541 free(lun, M_CTL); 4542 be_lun->lun_config_status(be_lun->be_lun, 4543 CTL_LUN_CONFIG_FAILURE); 4544 return (ENOSPC); 4545 } 4546 } 4547 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4548 4549 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4550 lun->target = target_id; 4551 lun->lun = lun_number; 4552 lun->be_lun = be_lun; 4553 /* 4554 * The processor LUN is always enabled. Disk LUNs come on line 4555 * disabled, and must be enabled by the backend. 4556 */ 4557 lun->flags |= CTL_LUN_DISABLED; 4558 lun->backend = be_lun->be; 4559 be_lun->ctl_lun = lun; 4560 be_lun->lun_id = lun_number; 4561 atomic_add_int(&be_lun->be->num_luns, 1); 4562 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4563 lun->flags |= CTL_LUN_STOPPED; 4564 4565 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4566 lun->flags |= CTL_LUN_INOPERABLE; 4567 4568 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4569 lun->flags |= CTL_LUN_PRIMARY_SC; 4570 4571 lun->ctl_softc = ctl_softc; 4572 TAILQ_INIT(&lun->ooa_queue); 4573 TAILQ_INIT(&lun->blocked_queue); 4574 STAILQ_INIT(&lun->error_list); 4575 4576 /* 4577 * Initialize the mode page index. 4578 */ 4579 ctl_init_page_index(lun); 4580 4581 /* 4582 * Set the poweron UA for all initiators on this LUN only. 4583 */ 4584 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4585 lun->pending_sense[i].ua_pending = CTL_UA_POWERON; 4586 4587 /* 4588 * Now, before we insert this lun on the lun list, set the lun 4589 * inventory changed UA for all other luns. 4590 */ 4591 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4592 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4593 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4594 } 4595 } 4596 4597 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4598 4599 ctl_softc->ctl_luns[lun_number] = lun; 4600 4601 ctl_softc->num_luns++; 4602 4603 /* Setup statistics gathering */ 4604 lun->stats.device_type = be_lun->lun_type; 4605 lun->stats.lun_number = lun_number; 4606 if (lun->stats.device_type == T_DIRECT) 4607 lun->stats.blocksize = be_lun->blocksize; 4608 else 4609 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4610 for (i = 0;i < CTL_MAX_PORTS;i++) 4611 lun->stats.ports[i].targ_port = i; 4612 4613 mtx_unlock(&ctl_softc->ctl_lock); 4614 4615 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4616 4617 /* 4618 * Run through each registered FETD and bring it online if it isn't 4619 * already. Enable the target ID if it hasn't been enabled, and 4620 * enable this particular LUN. 4621 */ 4622 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4623 int retval; 4624 4625 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4626 if (retval != 0) { 4627 printf("ctl_alloc_lun: FETD %s port %d returned error " 4628 "%d for lun_enable on target %ju lun %d\n", 4629 port->port_name, port->targ_port, retval, 4630 (uintmax_t)target_id.id, lun_number); 4631 } else 4632 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4633 } 4634 return (0); 4635} 4636 4637/* 4638 * Delete a LUN. 4639 * Assumptions: 4640 * - LUN has already been marked invalid and any pending I/O has been taken 4641 * care of. 4642 */ 4643static int 4644ctl_free_lun(struct ctl_lun *lun) 4645{ 4646 struct ctl_softc *softc; 4647#if 0 4648 struct ctl_port *port; 4649#endif 4650 struct ctl_lun *nlun; 4651 int i; 4652 4653 softc = lun->ctl_softc; 4654 4655 mtx_assert(&softc->ctl_lock, MA_OWNED); 4656 4657 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4658 4659 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4660 4661 softc->ctl_luns[lun->lun] = NULL; 4662 4663 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4664 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4665 4666 softc->num_luns--; 4667 4668 /* 4669 * XXX KDM this scheme only works for a single target/multiple LUN 4670 * setup. It needs to be revamped for a multiple target scheme. 4671 * 4672 * XXX KDM this results in port->lun_disable() getting called twice, 4673 * once when ctl_disable_lun() is called, and a second time here. 4674 * We really need to re-think the LUN disable semantics. There 4675 * should probably be several steps/levels to LUN removal: 4676 * - disable 4677 * - invalidate 4678 * - free 4679 * 4680 * Right now we only have a disable method when communicating to 4681 * the front end ports, at least for individual LUNs. 4682 */ 4683#if 0 4684 STAILQ_FOREACH(port, &softc->port_list, links) { 4685 int retval; 4686 4687 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4688 lun->lun); 4689 if (retval != 0) { 4690 printf("ctl_free_lun: FETD %s port %d returned error " 4691 "%d for lun_disable on target %ju lun %jd\n", 4692 port->port_name, port->targ_port, retval, 4693 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4694 } 4695 4696 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4697 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4698 4699 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4700 if (retval != 0) { 4701 printf("ctl_free_lun: FETD %s port %d " 4702 "returned error %d for targ_disable on " 4703 "target %ju\n", port->port_name, 4704 port->targ_port, retval, 4705 (uintmax_t)lun->target.id); 4706 } else 4707 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4708 4709 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4710 continue; 4711 4712#if 0 4713 port->port_offline(port->onoff_arg); 4714 port->status &= ~CTL_PORT_STATUS_ONLINE; 4715#endif 4716 } 4717 } 4718#endif 4719 4720 /* 4721 * Tell the backend to free resources, if this LUN has a backend. 4722 */ 4723 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4724 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4725 4726 mtx_destroy(&lun->lun_lock); 4727 free(lun->lun_devid, M_CTL); 4728 if (lun->flags & CTL_LUN_MALLOCED) 4729 free(lun, M_CTL); 4730 4731 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4732 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4733 nlun->pending_sense[i].ua_pending |= CTL_UA_LUN_CHANGE; 4734 } 4735 } 4736 4737 return (0); 4738} 4739 4740static void 4741ctl_create_lun(struct ctl_be_lun *be_lun) 4742{ 4743 struct ctl_softc *ctl_softc; 4744 4745 ctl_softc = control_softc; 4746 4747 /* 4748 * ctl_alloc_lun() should handle all potential failure cases. 4749 */ 4750 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4751} 4752 4753int 4754ctl_add_lun(struct ctl_be_lun *be_lun) 4755{ 4756 struct ctl_softc *ctl_softc = control_softc; 4757 4758 mtx_lock(&ctl_softc->ctl_lock); 4759 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4760 mtx_unlock(&ctl_softc->ctl_lock); 4761 wakeup(&ctl_softc->pending_lun_queue); 4762 4763 return (0); 4764} 4765 4766int 4767ctl_enable_lun(struct ctl_be_lun *be_lun) 4768{ 4769 struct ctl_softc *ctl_softc; 4770 struct ctl_port *port, *nport; 4771 struct ctl_lun *lun; 4772 int retval; 4773 4774 ctl_softc = control_softc; 4775 4776 lun = (struct ctl_lun *)be_lun->ctl_lun; 4777 4778 mtx_lock(&ctl_softc->ctl_lock); 4779 mtx_lock(&lun->lun_lock); 4780 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4781 /* 4782 * eh? Why did we get called if the LUN is already 4783 * enabled? 4784 */ 4785 mtx_unlock(&lun->lun_lock); 4786 mtx_unlock(&ctl_softc->ctl_lock); 4787 return (0); 4788 } 4789 lun->flags &= ~CTL_LUN_DISABLED; 4790 mtx_unlock(&lun->lun_lock); 4791 4792 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4793 nport = STAILQ_NEXT(port, links); 4794 4795 /* 4796 * Drop the lock while we call the FETD's enable routine. 4797 * This can lead to a callback into CTL (at least in the 4798 * case of the internal initiator frontend. 4799 */ 4800 mtx_unlock(&ctl_softc->ctl_lock); 4801 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4802 mtx_lock(&ctl_softc->ctl_lock); 4803 if (retval != 0) { 4804 printf("%s: FETD %s port %d returned error " 4805 "%d for lun_enable on target %ju lun %jd\n", 4806 __func__, port->port_name, port->targ_port, retval, 4807 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4808 } 4809#if 0 4810 else { 4811 /* NOTE: TODO: why does lun enable affect port status? */ 4812 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4813 } 4814#endif 4815 } 4816 4817 mtx_unlock(&ctl_softc->ctl_lock); 4818 4819 return (0); 4820} 4821 4822int 4823ctl_disable_lun(struct ctl_be_lun *be_lun) 4824{ 4825 struct ctl_softc *ctl_softc; 4826 struct ctl_port *port; 4827 struct ctl_lun *lun; 4828 int retval; 4829 4830 ctl_softc = control_softc; 4831 4832 lun = (struct ctl_lun *)be_lun->ctl_lun; 4833 4834 mtx_lock(&ctl_softc->ctl_lock); 4835 mtx_lock(&lun->lun_lock); 4836 if (lun->flags & CTL_LUN_DISABLED) { 4837 mtx_unlock(&lun->lun_lock); 4838 mtx_unlock(&ctl_softc->ctl_lock); 4839 return (0); 4840 } 4841 lun->flags |= CTL_LUN_DISABLED; 4842 mtx_unlock(&lun->lun_lock); 4843 4844 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4845 mtx_unlock(&ctl_softc->ctl_lock); 4846 /* 4847 * Drop the lock before we call the frontend's disable 4848 * routine, to avoid lock order reversals. 4849 * 4850 * XXX KDM what happens if the frontend list changes while 4851 * we're traversing it? It's unlikely, but should be handled. 4852 */ 4853 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4854 lun->lun); 4855 mtx_lock(&ctl_softc->ctl_lock); 4856 if (retval != 0) { 4857 printf("ctl_alloc_lun: FETD %s port %d returned error " 4858 "%d for lun_disable on target %ju lun %jd\n", 4859 port->port_name, port->targ_port, retval, 4860 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4861 } 4862 } 4863 4864 mtx_unlock(&ctl_softc->ctl_lock); 4865 4866 return (0); 4867} 4868 4869int 4870ctl_start_lun(struct ctl_be_lun *be_lun) 4871{ 4872 struct ctl_softc *ctl_softc; 4873 struct ctl_lun *lun; 4874 4875 ctl_softc = control_softc; 4876 4877 lun = (struct ctl_lun *)be_lun->ctl_lun; 4878 4879 mtx_lock(&lun->lun_lock); 4880 lun->flags &= ~CTL_LUN_STOPPED; 4881 mtx_unlock(&lun->lun_lock); 4882 4883 return (0); 4884} 4885 4886int 4887ctl_stop_lun(struct ctl_be_lun *be_lun) 4888{ 4889 struct ctl_softc *ctl_softc; 4890 struct ctl_lun *lun; 4891 4892 ctl_softc = control_softc; 4893 4894 lun = (struct ctl_lun *)be_lun->ctl_lun; 4895 4896 mtx_lock(&lun->lun_lock); 4897 lun->flags |= CTL_LUN_STOPPED; 4898 mtx_unlock(&lun->lun_lock); 4899 4900 return (0); 4901} 4902 4903int 4904ctl_lun_offline(struct ctl_be_lun *be_lun) 4905{ 4906 struct ctl_softc *ctl_softc; 4907 struct ctl_lun *lun; 4908 4909 ctl_softc = control_softc; 4910 4911 lun = (struct ctl_lun *)be_lun->ctl_lun; 4912 4913 mtx_lock(&lun->lun_lock); 4914 lun->flags |= CTL_LUN_OFFLINE; 4915 mtx_unlock(&lun->lun_lock); 4916 4917 return (0); 4918} 4919 4920int 4921ctl_lun_online(struct ctl_be_lun *be_lun) 4922{ 4923 struct ctl_softc *ctl_softc; 4924 struct ctl_lun *lun; 4925 4926 ctl_softc = control_softc; 4927 4928 lun = (struct ctl_lun *)be_lun->ctl_lun; 4929 4930 mtx_lock(&lun->lun_lock); 4931 lun->flags &= ~CTL_LUN_OFFLINE; 4932 mtx_unlock(&lun->lun_lock); 4933 4934 return (0); 4935} 4936 4937int 4938ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4939{ 4940 struct ctl_softc *ctl_softc; 4941 struct ctl_lun *lun; 4942 4943 ctl_softc = control_softc; 4944 4945 lun = (struct ctl_lun *)be_lun->ctl_lun; 4946 4947 mtx_lock(&lun->lun_lock); 4948 4949 /* 4950 * The LUN needs to be disabled before it can be marked invalid. 4951 */ 4952 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4953 mtx_unlock(&lun->lun_lock); 4954 return (-1); 4955 } 4956 /* 4957 * Mark the LUN invalid. 4958 */ 4959 lun->flags |= CTL_LUN_INVALID; 4960 4961 /* 4962 * If there is nothing in the OOA queue, go ahead and free the LUN. 4963 * If we have something in the OOA queue, we'll free it when the 4964 * last I/O completes. 4965 */ 4966 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4967 mtx_unlock(&lun->lun_lock); 4968 mtx_lock(&ctl_softc->ctl_lock); 4969 ctl_free_lun(lun); 4970 mtx_unlock(&ctl_softc->ctl_lock); 4971 } else 4972 mtx_unlock(&lun->lun_lock); 4973 4974 return (0); 4975} 4976 4977int 4978ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4979{ 4980 struct ctl_softc *ctl_softc; 4981 struct ctl_lun *lun; 4982 4983 ctl_softc = control_softc; 4984 lun = (struct ctl_lun *)be_lun->ctl_lun; 4985 4986 mtx_lock(&lun->lun_lock); 4987 lun->flags |= CTL_LUN_INOPERABLE; 4988 mtx_unlock(&lun->lun_lock); 4989 4990 return (0); 4991} 4992 4993int 4994ctl_lun_operable(struct ctl_be_lun *be_lun) 4995{ 4996 struct ctl_softc *ctl_softc; 4997 struct ctl_lun *lun; 4998 4999 ctl_softc = control_softc; 5000 lun = (struct ctl_lun *)be_lun->ctl_lun; 5001 5002 mtx_lock(&lun->lun_lock); 5003 lun->flags &= ~CTL_LUN_INOPERABLE; 5004 mtx_unlock(&lun->lun_lock); 5005 5006 return (0); 5007} 5008 5009int 5010ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5011 int lock) 5012{ 5013 struct ctl_softc *softc; 5014 struct ctl_lun *lun; 5015 struct copan_aps_subpage *current_sp; 5016 struct ctl_page_index *page_index; 5017 int i; 5018 5019 softc = control_softc; 5020 5021 mtx_lock(&softc->ctl_lock); 5022 5023 lun = (struct ctl_lun *)be_lun->ctl_lun; 5024 mtx_lock(&lun->lun_lock); 5025 5026 page_index = NULL; 5027 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5028 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5029 APS_PAGE_CODE) 5030 continue; 5031 5032 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5033 continue; 5034 page_index = &lun->mode_pages.index[i]; 5035 } 5036 5037 if (page_index == NULL) { 5038 mtx_unlock(&lun->lun_lock); 5039 mtx_unlock(&softc->ctl_lock); 5040 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5041 (uintmax_t)lun->lun); 5042 return (1); 5043 } 5044#if 0 5045 if ((softc->aps_locked_lun != 0) 5046 && (softc->aps_locked_lun != lun->lun)) { 5047 printf("%s: attempt to lock LUN %llu when %llu is already " 5048 "locked\n"); 5049 mtx_unlock(&lun->lun_lock); 5050 mtx_unlock(&softc->ctl_lock); 5051 return (1); 5052 } 5053#endif 5054 5055 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5056 (page_index->page_len * CTL_PAGE_CURRENT)); 5057 5058 if (lock != 0) { 5059 current_sp->lock_active = APS_LOCK_ACTIVE; 5060 softc->aps_locked_lun = lun->lun; 5061 } else { 5062 current_sp->lock_active = 0; 5063 softc->aps_locked_lun = 0; 5064 } 5065 5066 5067 /* 5068 * If we're in HA mode, try to send the lock message to the other 5069 * side. 5070 */ 5071 if (ctl_is_single == 0) { 5072 int isc_retval; 5073 union ctl_ha_msg lock_msg; 5074 5075 lock_msg.hdr.nexus = *nexus; 5076 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5077 if (lock != 0) 5078 lock_msg.aps.lock_flag = 1; 5079 else 5080 lock_msg.aps.lock_flag = 0; 5081 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5082 sizeof(lock_msg), 0); 5083 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5084 printf("%s: APS (lock=%d) error returned from " 5085 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5086 mtx_unlock(&lun->lun_lock); 5087 mtx_unlock(&softc->ctl_lock); 5088 return (1); 5089 } 5090 } 5091 5092 mtx_unlock(&lun->lun_lock); 5093 mtx_unlock(&softc->ctl_lock); 5094 5095 return (0); 5096} 5097 5098void 5099ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5100{ 5101 struct ctl_lun *lun; 5102 struct ctl_softc *softc; 5103 int i; 5104 5105 softc = control_softc; 5106 5107 lun = (struct ctl_lun *)be_lun->ctl_lun; 5108 5109 mtx_lock(&lun->lun_lock); 5110 5111 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5112 lun->pending_sense[i].ua_pending |= CTL_UA_CAPACITY_CHANGED; 5113 5114 mtx_unlock(&lun->lun_lock); 5115} 5116 5117/* 5118 * Backend "memory move is complete" callback for requests that never 5119 * make it down to say RAIDCore's configuration code. 5120 */ 5121int 5122ctl_config_move_done(union ctl_io *io) 5123{ 5124 int retval; 5125 5126 retval = CTL_RETVAL_COMPLETE; 5127 5128 5129 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5130 /* 5131 * XXX KDM this shouldn't happen, but what if it does? 5132 */ 5133 if (io->io_hdr.io_type != CTL_IO_SCSI) 5134 panic("I/O type isn't CTL_IO_SCSI!"); 5135 5136 if ((io->io_hdr.port_status == 0) 5137 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5138 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5139 io->io_hdr.status = CTL_SUCCESS; 5140 else if ((io->io_hdr.port_status != 0) 5141 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5142 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5143 /* 5144 * For hardware error sense keys, the sense key 5145 * specific value is defined to be a retry count, 5146 * but we use it to pass back an internal FETD 5147 * error code. XXX KDM Hopefully the FETD is only 5148 * using 16 bits for an error code, since that's 5149 * all the space we have in the sks field. 5150 */ 5151 ctl_set_internal_failure(&io->scsiio, 5152 /*sks_valid*/ 1, 5153 /*retry_count*/ 5154 io->io_hdr.port_status); 5155 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5156 free(io->scsiio.kern_data_ptr, M_CTL); 5157 ctl_done(io); 5158 goto bailout; 5159 } 5160 5161 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5162 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5163 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5164 /* 5165 * XXX KDM just assuming a single pointer here, and not a 5166 * S/G list. If we start using S/G lists for config data, 5167 * we'll need to know how to clean them up here as well. 5168 */ 5169 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5170 free(io->scsiio.kern_data_ptr, M_CTL); 5171 /* Hopefully the user has already set the status... */ 5172 ctl_done(io); 5173 } else { 5174 /* 5175 * XXX KDM now we need to continue data movement. Some 5176 * options: 5177 * - call ctl_scsiio() again? We don't do this for data 5178 * writes, because for those at least we know ahead of 5179 * time where the write will go and how long it is. For 5180 * config writes, though, that information is largely 5181 * contained within the write itself, thus we need to 5182 * parse out the data again. 5183 * 5184 * - Call some other function once the data is in? 5185 */ 5186 5187 /* 5188 * XXX KDM call ctl_scsiio() again for now, and check flag 5189 * bits to see whether we're allocated or not. 5190 */ 5191 retval = ctl_scsiio(&io->scsiio); 5192 } 5193bailout: 5194 return (retval); 5195} 5196 5197/* 5198 * This gets called by a backend driver when it is done with a 5199 * data_submit method. 5200 */ 5201void 5202ctl_data_submit_done(union ctl_io *io) 5203{ 5204 /* 5205 * If the IO_CONT flag is set, we need to call the supplied 5206 * function to continue processing the I/O, instead of completing 5207 * the I/O just yet. 5208 * 5209 * If there is an error, though, we don't want to keep processing. 5210 * Instead, just send status back to the initiator. 5211 */ 5212 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5213 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5214 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5215 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5216 io->scsiio.io_cont(io); 5217 return; 5218 } 5219 ctl_done(io); 5220} 5221 5222/* 5223 * This gets called by a backend driver when it is done with a 5224 * configuration write. 5225 */ 5226void 5227ctl_config_write_done(union ctl_io *io) 5228{ 5229 /* 5230 * If the IO_CONT flag is set, we need to call the supplied 5231 * function to continue processing the I/O, instead of completing 5232 * the I/O just yet. 5233 * 5234 * If there is an error, though, we don't want to keep processing. 5235 * Instead, just send status back to the initiator. 5236 */ 5237 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5238 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5239 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5240 io->scsiio.io_cont(io); 5241 return; 5242 } 5243 /* 5244 * Since a configuration write can be done for commands that actually 5245 * have data allocated, like write buffer, and commands that have 5246 * no data, like start/stop unit, we need to check here. 5247 */ 5248 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5249 free(io->scsiio.kern_data_ptr, M_CTL); 5250 ctl_done(io); 5251} 5252 5253/* 5254 * SCSI release command. 5255 */ 5256int 5257ctl_scsi_release(struct ctl_scsiio *ctsio) 5258{ 5259 int length, longid, thirdparty_id, resv_id; 5260 struct ctl_softc *ctl_softc; 5261 struct ctl_lun *lun; 5262 5263 length = 0; 5264 resv_id = 0; 5265 5266 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5267 5268 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5269 ctl_softc = control_softc; 5270 5271 switch (ctsio->cdb[0]) { 5272 case RELEASE_10: { 5273 struct scsi_release_10 *cdb; 5274 5275 cdb = (struct scsi_release_10 *)ctsio->cdb; 5276 5277 if (cdb->byte2 & SR10_LONGID) 5278 longid = 1; 5279 else 5280 thirdparty_id = cdb->thirdparty_id; 5281 5282 resv_id = cdb->resv_id; 5283 length = scsi_2btoul(cdb->length); 5284 break; 5285 } 5286 } 5287 5288 5289 /* 5290 * XXX KDM right now, we only support LUN reservation. We don't 5291 * support 3rd party reservations, or extent reservations, which 5292 * might actually need the parameter list. If we've gotten this 5293 * far, we've got a LUN reservation. Anything else got kicked out 5294 * above. So, according to SPC, ignore the length. 5295 */ 5296 length = 0; 5297 5298 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5299 && (length > 0)) { 5300 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5301 ctsio->kern_data_len = length; 5302 ctsio->kern_total_len = length; 5303 ctsio->kern_data_resid = 0; 5304 ctsio->kern_rel_offset = 0; 5305 ctsio->kern_sg_entries = 0; 5306 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5307 ctsio->be_move_done = ctl_config_move_done; 5308 ctl_datamove((union ctl_io *)ctsio); 5309 5310 return (CTL_RETVAL_COMPLETE); 5311 } 5312 5313 if (length > 0) 5314 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5315 5316 mtx_lock(&lun->lun_lock); 5317 5318 /* 5319 * According to SPC, it is not an error for an intiator to attempt 5320 * to release a reservation on a LUN that isn't reserved, or that 5321 * is reserved by another initiator. The reservation can only be 5322 * released, though, by the initiator who made it or by one of 5323 * several reset type events. 5324 */ 5325 if (lun->flags & CTL_LUN_RESERVED) { 5326 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5327 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5328 && (ctsio->io_hdr.nexus.targ_target.id == 5329 lun->rsv_nexus.targ_target.id)) { 5330 lun->flags &= ~CTL_LUN_RESERVED; 5331 } 5332 } 5333 5334 mtx_unlock(&lun->lun_lock); 5335 5336 ctsio->scsi_status = SCSI_STATUS_OK; 5337 ctsio->io_hdr.status = CTL_SUCCESS; 5338 5339 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5340 free(ctsio->kern_data_ptr, M_CTL); 5341 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5342 } 5343 5344 ctl_done((union ctl_io *)ctsio); 5345 return (CTL_RETVAL_COMPLETE); 5346} 5347 5348int 5349ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5350{ 5351 int extent, thirdparty, longid; 5352 int resv_id, length; 5353 uint64_t thirdparty_id; 5354 struct ctl_softc *ctl_softc; 5355 struct ctl_lun *lun; 5356 5357 extent = 0; 5358 thirdparty = 0; 5359 longid = 0; 5360 resv_id = 0; 5361 length = 0; 5362 thirdparty_id = 0; 5363 5364 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5365 5366 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5367 ctl_softc = control_softc; 5368 5369 switch (ctsio->cdb[0]) { 5370 case RESERVE_10: { 5371 struct scsi_reserve_10 *cdb; 5372 5373 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5374 5375 if (cdb->byte2 & SR10_LONGID) 5376 longid = 1; 5377 else 5378 thirdparty_id = cdb->thirdparty_id; 5379 5380 resv_id = cdb->resv_id; 5381 length = scsi_2btoul(cdb->length); 5382 break; 5383 } 5384 } 5385 5386 /* 5387 * XXX KDM right now, we only support LUN reservation. We don't 5388 * support 3rd party reservations, or extent reservations, which 5389 * might actually need the parameter list. If we've gotten this 5390 * far, we've got a LUN reservation. Anything else got kicked out 5391 * above. So, according to SPC, ignore the length. 5392 */ 5393 length = 0; 5394 5395 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5396 && (length > 0)) { 5397 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5398 ctsio->kern_data_len = length; 5399 ctsio->kern_total_len = length; 5400 ctsio->kern_data_resid = 0; 5401 ctsio->kern_rel_offset = 0; 5402 ctsio->kern_sg_entries = 0; 5403 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5404 ctsio->be_move_done = ctl_config_move_done; 5405 ctl_datamove((union ctl_io *)ctsio); 5406 5407 return (CTL_RETVAL_COMPLETE); 5408 } 5409 5410 if (length > 0) 5411 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5412 5413 mtx_lock(&lun->lun_lock); 5414 if (lun->flags & CTL_LUN_RESERVED) { 5415 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5416 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5417 || (ctsio->io_hdr.nexus.targ_target.id != 5418 lun->rsv_nexus.targ_target.id)) { 5419 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5420 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5421 goto bailout; 5422 } 5423 } 5424 5425 lun->flags |= CTL_LUN_RESERVED; 5426 lun->rsv_nexus = ctsio->io_hdr.nexus; 5427 5428 ctsio->scsi_status = SCSI_STATUS_OK; 5429 ctsio->io_hdr.status = CTL_SUCCESS; 5430 5431bailout: 5432 mtx_unlock(&lun->lun_lock); 5433 5434 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5435 free(ctsio->kern_data_ptr, M_CTL); 5436 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5437 } 5438 5439 ctl_done((union ctl_io *)ctsio); 5440 return (CTL_RETVAL_COMPLETE); 5441} 5442 5443int 5444ctl_start_stop(struct ctl_scsiio *ctsio) 5445{ 5446 struct scsi_start_stop_unit *cdb; 5447 struct ctl_lun *lun; 5448 struct ctl_softc *ctl_softc; 5449 int retval; 5450 5451 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5452 5453 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5454 ctl_softc = control_softc; 5455 retval = 0; 5456 5457 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5458 5459 /* 5460 * XXX KDM 5461 * We don't support the immediate bit on a stop unit. In order to 5462 * do that, we would need to code up a way to know that a stop is 5463 * pending, and hold off any new commands until it completes, one 5464 * way or another. Then we could accept or reject those commands 5465 * depending on its status. We would almost need to do the reverse 5466 * of what we do below for an immediate start -- return the copy of 5467 * the ctl_io to the FETD with status to send to the host (and to 5468 * free the copy!) and then free the original I/O once the stop 5469 * actually completes. That way, the OOA queue mechanism can work 5470 * to block commands that shouldn't proceed. Another alternative 5471 * would be to put the copy in the queue in place of the original, 5472 * and return the original back to the caller. That could be 5473 * slightly safer.. 5474 */ 5475 if ((cdb->byte2 & SSS_IMMED) 5476 && ((cdb->how & SSS_START) == 0)) { 5477 ctl_set_invalid_field(ctsio, 5478 /*sks_valid*/ 1, 5479 /*command*/ 1, 5480 /*field*/ 1, 5481 /*bit_valid*/ 1, 5482 /*bit*/ 0); 5483 ctl_done((union ctl_io *)ctsio); 5484 return (CTL_RETVAL_COMPLETE); 5485 } 5486 5487 if ((lun->flags & CTL_LUN_PR_RESERVED) 5488 && ((cdb->how & SSS_START)==0)) { 5489 uint32_t residx; 5490 5491 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5492 if (!lun->per_res[residx].registered 5493 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5494 5495 ctl_set_reservation_conflict(ctsio); 5496 ctl_done((union ctl_io *)ctsio); 5497 return (CTL_RETVAL_COMPLETE); 5498 } 5499 } 5500 5501 /* 5502 * If there is no backend on this device, we can't start or stop 5503 * it. In theory we shouldn't get any start/stop commands in the 5504 * first place at this level if the LUN doesn't have a backend. 5505 * That should get stopped by the command decode code. 5506 */ 5507 if (lun->backend == NULL) { 5508 ctl_set_invalid_opcode(ctsio); 5509 ctl_done((union ctl_io *)ctsio); 5510 return (CTL_RETVAL_COMPLETE); 5511 } 5512 5513 /* 5514 * XXX KDM Copan-specific offline behavior. 5515 * Figure out a reasonable way to port this? 5516 */ 5517#ifdef NEEDTOPORT 5518 mtx_lock(&lun->lun_lock); 5519 5520 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5521 && (lun->flags & CTL_LUN_OFFLINE)) { 5522 /* 5523 * If the LUN is offline, and the on/offline bit isn't set, 5524 * reject the start or stop. Otherwise, let it through. 5525 */ 5526 mtx_unlock(&lun->lun_lock); 5527 ctl_set_lun_not_ready(ctsio); 5528 ctl_done((union ctl_io *)ctsio); 5529 } else { 5530 mtx_unlock(&lun->lun_lock); 5531#endif /* NEEDTOPORT */ 5532 /* 5533 * This could be a start or a stop when we're online, 5534 * or a stop/offline or start/online. A start or stop when 5535 * we're offline is covered in the case above. 5536 */ 5537 /* 5538 * In the non-immediate case, we send the request to 5539 * the backend and return status to the user when 5540 * it is done. 5541 * 5542 * In the immediate case, we allocate a new ctl_io 5543 * to hold a copy of the request, and send that to 5544 * the backend. We then set good status on the 5545 * user's request and return it immediately. 5546 */ 5547 if (cdb->byte2 & SSS_IMMED) { 5548 union ctl_io *new_io; 5549 5550 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5551 if (new_io == NULL) { 5552 ctl_set_busy(ctsio); 5553 ctl_done((union ctl_io *)ctsio); 5554 } else { 5555 ctl_copy_io((union ctl_io *)ctsio, 5556 new_io); 5557 retval = lun->backend->config_write(new_io); 5558 ctl_set_success(ctsio); 5559 ctl_done((union ctl_io *)ctsio); 5560 } 5561 } else { 5562 retval = lun->backend->config_write( 5563 (union ctl_io *)ctsio); 5564 } 5565#ifdef NEEDTOPORT 5566 } 5567#endif 5568 return (retval); 5569} 5570 5571/* 5572 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5573 * we don't really do anything with the LBA and length fields if the user 5574 * passes them in. Instead we'll just flush out the cache for the entire 5575 * LUN. 5576 */ 5577int 5578ctl_sync_cache(struct ctl_scsiio *ctsio) 5579{ 5580 struct ctl_lun *lun; 5581 struct ctl_softc *ctl_softc; 5582 uint64_t starting_lba; 5583 uint32_t block_count; 5584 int retval; 5585 5586 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5587 5588 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5589 ctl_softc = control_softc; 5590 retval = 0; 5591 5592 switch (ctsio->cdb[0]) { 5593 case SYNCHRONIZE_CACHE: { 5594 struct scsi_sync_cache *cdb; 5595 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5596 5597 starting_lba = scsi_4btoul(cdb->begin_lba); 5598 block_count = scsi_2btoul(cdb->lb_count); 5599 break; 5600 } 5601 case SYNCHRONIZE_CACHE_16: { 5602 struct scsi_sync_cache_16 *cdb; 5603 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5604 5605 starting_lba = scsi_8btou64(cdb->begin_lba); 5606 block_count = scsi_4btoul(cdb->lb_count); 5607 break; 5608 } 5609 default: 5610 ctl_set_invalid_opcode(ctsio); 5611 ctl_done((union ctl_io *)ctsio); 5612 goto bailout; 5613 break; /* NOTREACHED */ 5614 } 5615 5616 /* 5617 * We check the LBA and length, but don't do anything with them. 5618 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5619 * get flushed. This check will just help satisfy anyone who wants 5620 * to see an error for an out of range LBA. 5621 */ 5622 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5623 ctl_set_lba_out_of_range(ctsio); 5624 ctl_done((union ctl_io *)ctsio); 5625 goto bailout; 5626 } 5627 5628 /* 5629 * If this LUN has no backend, we can't flush the cache anyway. 5630 */ 5631 if (lun->backend == NULL) { 5632 ctl_set_invalid_opcode(ctsio); 5633 ctl_done((union ctl_io *)ctsio); 5634 goto bailout; 5635 } 5636 5637 /* 5638 * Check to see whether we're configured to send the SYNCHRONIZE 5639 * CACHE command directly to the back end. 5640 */ 5641 mtx_lock(&lun->lun_lock); 5642 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5643 && (++(lun->sync_count) >= lun->sync_interval)) { 5644 lun->sync_count = 0; 5645 mtx_unlock(&lun->lun_lock); 5646 retval = lun->backend->config_write((union ctl_io *)ctsio); 5647 } else { 5648 mtx_unlock(&lun->lun_lock); 5649 ctl_set_success(ctsio); 5650 ctl_done((union ctl_io *)ctsio); 5651 } 5652 5653bailout: 5654 5655 return (retval); 5656} 5657 5658int 5659ctl_format(struct ctl_scsiio *ctsio) 5660{ 5661 struct scsi_format *cdb; 5662 struct ctl_lun *lun; 5663 struct ctl_softc *ctl_softc; 5664 int length, defect_list_len; 5665 5666 CTL_DEBUG_PRINT(("ctl_format\n")); 5667 5668 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5669 ctl_softc = control_softc; 5670 5671 cdb = (struct scsi_format *)ctsio->cdb; 5672 5673 length = 0; 5674 if (cdb->byte2 & SF_FMTDATA) { 5675 if (cdb->byte2 & SF_LONGLIST) 5676 length = sizeof(struct scsi_format_header_long); 5677 else 5678 length = sizeof(struct scsi_format_header_short); 5679 } 5680 5681 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5682 && (length > 0)) { 5683 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5684 ctsio->kern_data_len = length; 5685 ctsio->kern_total_len = length; 5686 ctsio->kern_data_resid = 0; 5687 ctsio->kern_rel_offset = 0; 5688 ctsio->kern_sg_entries = 0; 5689 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5690 ctsio->be_move_done = ctl_config_move_done; 5691 ctl_datamove((union ctl_io *)ctsio); 5692 5693 return (CTL_RETVAL_COMPLETE); 5694 } 5695 5696 defect_list_len = 0; 5697 5698 if (cdb->byte2 & SF_FMTDATA) { 5699 if (cdb->byte2 & SF_LONGLIST) { 5700 struct scsi_format_header_long *header; 5701 5702 header = (struct scsi_format_header_long *) 5703 ctsio->kern_data_ptr; 5704 5705 defect_list_len = scsi_4btoul(header->defect_list_len); 5706 if (defect_list_len != 0) { 5707 ctl_set_invalid_field(ctsio, 5708 /*sks_valid*/ 1, 5709 /*command*/ 0, 5710 /*field*/ 2, 5711 /*bit_valid*/ 0, 5712 /*bit*/ 0); 5713 goto bailout; 5714 } 5715 } else { 5716 struct scsi_format_header_short *header; 5717 5718 header = (struct scsi_format_header_short *) 5719 ctsio->kern_data_ptr; 5720 5721 defect_list_len = scsi_2btoul(header->defect_list_len); 5722 if (defect_list_len != 0) { 5723 ctl_set_invalid_field(ctsio, 5724 /*sks_valid*/ 1, 5725 /*command*/ 0, 5726 /*field*/ 2, 5727 /*bit_valid*/ 0, 5728 /*bit*/ 0); 5729 goto bailout; 5730 } 5731 } 5732 } 5733 5734 /* 5735 * The format command will clear out the "Medium format corrupted" 5736 * status if set by the configuration code. That status is really 5737 * just a way to notify the host that we have lost the media, and 5738 * get them to issue a command that will basically make them think 5739 * they're blowing away the media. 5740 */ 5741 mtx_lock(&lun->lun_lock); 5742 lun->flags &= ~CTL_LUN_INOPERABLE; 5743 mtx_unlock(&lun->lun_lock); 5744 5745 ctsio->scsi_status = SCSI_STATUS_OK; 5746 ctsio->io_hdr.status = CTL_SUCCESS; 5747bailout: 5748 5749 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5750 free(ctsio->kern_data_ptr, M_CTL); 5751 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5752 } 5753 5754 ctl_done((union ctl_io *)ctsio); 5755 return (CTL_RETVAL_COMPLETE); 5756} 5757 5758int 5759ctl_read_buffer(struct ctl_scsiio *ctsio) 5760{ 5761 struct scsi_read_buffer *cdb; 5762 struct ctl_lun *lun; 5763 int buffer_offset, len; 5764 static uint8_t descr[4]; 5765 static uint8_t echo_descr[4] = { 0 }; 5766 5767 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5768 5769 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5770 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5771 5772 if (lun->flags & CTL_LUN_PR_RESERVED) { 5773 uint32_t residx; 5774 5775 /* 5776 * XXX KDM need a lock here. 5777 */ 5778 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5779 if ((lun->res_type == SPR_TYPE_EX_AC 5780 && residx != lun->pr_res_idx) 5781 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5782 || lun->res_type == SPR_TYPE_EX_AC_AR) 5783 && !lun->per_res[residx].registered)) { 5784 ctl_set_reservation_conflict(ctsio); 5785 ctl_done((union ctl_io *)ctsio); 5786 return (CTL_RETVAL_COMPLETE); 5787 } 5788 } 5789 5790 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5791 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5792 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5793 ctl_set_invalid_field(ctsio, 5794 /*sks_valid*/ 1, 5795 /*command*/ 1, 5796 /*field*/ 1, 5797 /*bit_valid*/ 1, 5798 /*bit*/ 4); 5799 ctl_done((union ctl_io *)ctsio); 5800 return (CTL_RETVAL_COMPLETE); 5801 } 5802 5803 len = scsi_3btoul(cdb->length); 5804 buffer_offset = scsi_3btoul(cdb->offset); 5805 5806 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5807 ctl_set_invalid_field(ctsio, 5808 /*sks_valid*/ 1, 5809 /*command*/ 1, 5810 /*field*/ 6, 5811 /*bit_valid*/ 0, 5812 /*bit*/ 0); 5813 ctl_done((union ctl_io *)ctsio); 5814 return (CTL_RETVAL_COMPLETE); 5815 } 5816 5817 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5818 descr[0] = 0; 5819 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5820 ctsio->kern_data_ptr = descr; 5821 len = min(len, sizeof(descr)); 5822 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5823 ctsio->kern_data_ptr = echo_descr; 5824 len = min(len, sizeof(echo_descr)); 5825 } else 5826 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5827 ctsio->kern_data_len = len; 5828 ctsio->kern_total_len = len; 5829 ctsio->kern_data_resid = 0; 5830 ctsio->kern_rel_offset = 0; 5831 ctsio->kern_sg_entries = 0; 5832 ctsio->be_move_done = ctl_config_move_done; 5833 ctl_datamove((union ctl_io *)ctsio); 5834 5835 return (CTL_RETVAL_COMPLETE); 5836} 5837 5838int 5839ctl_write_buffer(struct ctl_scsiio *ctsio) 5840{ 5841 struct scsi_write_buffer *cdb; 5842 struct ctl_lun *lun; 5843 int buffer_offset, len; 5844 5845 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5846 5847 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5848 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5849 5850 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5851 ctl_set_invalid_field(ctsio, 5852 /*sks_valid*/ 1, 5853 /*command*/ 1, 5854 /*field*/ 1, 5855 /*bit_valid*/ 1, 5856 /*bit*/ 4); 5857 ctl_done((union ctl_io *)ctsio); 5858 return (CTL_RETVAL_COMPLETE); 5859 } 5860 5861 len = scsi_3btoul(cdb->length); 5862 buffer_offset = scsi_3btoul(cdb->offset); 5863 5864 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5865 ctl_set_invalid_field(ctsio, 5866 /*sks_valid*/ 1, 5867 /*command*/ 1, 5868 /*field*/ 6, 5869 /*bit_valid*/ 0, 5870 /*bit*/ 0); 5871 ctl_done((union ctl_io *)ctsio); 5872 return (CTL_RETVAL_COMPLETE); 5873 } 5874 5875 /* 5876 * If we've got a kernel request that hasn't been malloced yet, 5877 * malloc it and tell the caller the data buffer is here. 5878 */ 5879 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5880 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5881 ctsio->kern_data_len = len; 5882 ctsio->kern_total_len = len; 5883 ctsio->kern_data_resid = 0; 5884 ctsio->kern_rel_offset = 0; 5885 ctsio->kern_sg_entries = 0; 5886 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5887 ctsio->be_move_done = ctl_config_move_done; 5888 ctl_datamove((union ctl_io *)ctsio); 5889 5890 return (CTL_RETVAL_COMPLETE); 5891 } 5892 5893 ctl_done((union ctl_io *)ctsio); 5894 5895 return (CTL_RETVAL_COMPLETE); 5896} 5897 5898int 5899ctl_write_same(struct ctl_scsiio *ctsio) 5900{ 5901 struct ctl_lun *lun; 5902 struct ctl_lba_len_flags *lbalen; 5903 uint64_t lba; 5904 uint32_t num_blocks; 5905 int len, retval; 5906 uint8_t byte2; 5907 5908 retval = CTL_RETVAL_COMPLETE; 5909 5910 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5911 5912 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5913 5914 switch (ctsio->cdb[0]) { 5915 case WRITE_SAME_10: { 5916 struct scsi_write_same_10 *cdb; 5917 5918 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5919 5920 lba = scsi_4btoul(cdb->addr); 5921 num_blocks = scsi_2btoul(cdb->length); 5922 byte2 = cdb->byte2; 5923 break; 5924 } 5925 case WRITE_SAME_16: { 5926 struct scsi_write_same_16 *cdb; 5927 5928 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5929 5930 lba = scsi_8btou64(cdb->addr); 5931 num_blocks = scsi_4btoul(cdb->length); 5932 byte2 = cdb->byte2; 5933 break; 5934 } 5935 default: 5936 /* 5937 * We got a command we don't support. This shouldn't 5938 * happen, commands should be filtered out above us. 5939 */ 5940 ctl_set_invalid_opcode(ctsio); 5941 ctl_done((union ctl_io *)ctsio); 5942 5943 return (CTL_RETVAL_COMPLETE); 5944 break; /* NOTREACHED */ 5945 } 5946 5947 /* 5948 * The first check is to make sure we're in bounds, the second 5949 * check is to catch wrap-around problems. If the lba + num blocks 5950 * is less than the lba, then we've wrapped around and the block 5951 * range is invalid anyway. 5952 */ 5953 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5954 || ((lba + num_blocks) < lba)) { 5955 ctl_set_lba_out_of_range(ctsio); 5956 ctl_done((union ctl_io *)ctsio); 5957 return (CTL_RETVAL_COMPLETE); 5958 } 5959 5960 /* Zero number of blocks means "to the last logical block" */ 5961 if (num_blocks == 0) { 5962 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5963 ctl_set_invalid_field(ctsio, 5964 /*sks_valid*/ 0, 5965 /*command*/ 1, 5966 /*field*/ 0, 5967 /*bit_valid*/ 0, 5968 /*bit*/ 0); 5969 ctl_done((union ctl_io *)ctsio); 5970 return (CTL_RETVAL_COMPLETE); 5971 } 5972 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5973 } 5974 5975 len = lun->be_lun->blocksize; 5976 5977 /* 5978 * If we've got a kernel request that hasn't been malloced yet, 5979 * malloc it and tell the caller the data buffer is here. 5980 */ 5981 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5982 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5983 ctsio->kern_data_len = len; 5984 ctsio->kern_total_len = len; 5985 ctsio->kern_data_resid = 0; 5986 ctsio->kern_rel_offset = 0; 5987 ctsio->kern_sg_entries = 0; 5988 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5989 ctsio->be_move_done = ctl_config_move_done; 5990 ctl_datamove((union ctl_io *)ctsio); 5991 5992 return (CTL_RETVAL_COMPLETE); 5993 } 5994 5995 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5996 lbalen->lba = lba; 5997 lbalen->len = num_blocks; 5998 lbalen->flags = byte2; 5999 retval = lun->backend->config_write((union ctl_io *)ctsio); 6000 6001 return (retval); 6002} 6003 6004int 6005ctl_unmap(struct ctl_scsiio *ctsio) 6006{ 6007 struct ctl_lun *lun; 6008 struct scsi_unmap *cdb; 6009 struct ctl_ptr_len_flags *ptrlen; 6010 struct scsi_unmap_header *hdr; 6011 struct scsi_unmap_desc *buf, *end; 6012 uint64_t lba; 6013 uint32_t num_blocks; 6014 int len, retval; 6015 uint8_t byte2; 6016 6017 retval = CTL_RETVAL_COMPLETE; 6018 6019 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6020 6021 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6022 cdb = (struct scsi_unmap *)ctsio->cdb; 6023 6024 len = scsi_2btoul(cdb->length); 6025 byte2 = cdb->byte2; 6026 6027 /* 6028 * If we've got a kernel request that hasn't been malloced yet, 6029 * malloc it and tell the caller the data buffer is here. 6030 */ 6031 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6032 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6033 ctsio->kern_data_len = len; 6034 ctsio->kern_total_len = len; 6035 ctsio->kern_data_resid = 0; 6036 ctsio->kern_rel_offset = 0; 6037 ctsio->kern_sg_entries = 0; 6038 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6039 ctsio->be_move_done = ctl_config_move_done; 6040 ctl_datamove((union ctl_io *)ctsio); 6041 6042 return (CTL_RETVAL_COMPLETE); 6043 } 6044 6045 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6046 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6047 if (len < sizeof (*hdr) || 6048 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6049 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6050 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6051 ctl_set_invalid_field(ctsio, 6052 /*sks_valid*/ 0, 6053 /*command*/ 0, 6054 /*field*/ 0, 6055 /*bit_valid*/ 0, 6056 /*bit*/ 0); 6057 ctl_done((union ctl_io *)ctsio); 6058 return (CTL_RETVAL_COMPLETE); 6059 } 6060 len = scsi_2btoul(hdr->desc_length); 6061 buf = (struct scsi_unmap_desc *)(hdr + 1); 6062 end = buf + len / sizeof(*buf); 6063 6064 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6065 ptrlen->ptr = (void *)buf; 6066 ptrlen->len = len; 6067 ptrlen->flags = byte2; 6068 6069 for (; buf < end; buf++) { 6070 lba = scsi_8btou64(buf->lba); 6071 num_blocks = scsi_4btoul(buf->length); 6072 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6073 || ((lba + num_blocks) < lba)) { 6074 ctl_set_lba_out_of_range(ctsio); 6075 ctl_done((union ctl_io *)ctsio); 6076 return (CTL_RETVAL_COMPLETE); 6077 } 6078 } 6079 6080 retval = lun->backend->config_write((union ctl_io *)ctsio); 6081 6082 return (retval); 6083} 6084 6085/* 6086 * Note that this function currently doesn't actually do anything inside 6087 * CTL to enforce things if the DQue bit is turned on. 6088 * 6089 * Also note that this function can't be used in the default case, because 6090 * the DQue bit isn't set in the changeable mask for the control mode page 6091 * anyway. This is just here as an example for how to implement a page 6092 * handler, and a placeholder in case we want to allow the user to turn 6093 * tagged queueing on and off. 6094 * 6095 * The D_SENSE bit handling is functional, however, and will turn 6096 * descriptor sense on and off for a given LUN. 6097 */ 6098int 6099ctl_control_page_handler(struct ctl_scsiio *ctsio, 6100 struct ctl_page_index *page_index, uint8_t *page_ptr) 6101{ 6102 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6103 struct ctl_lun *lun; 6104 struct ctl_softc *softc; 6105 int set_ua; 6106 uint32_t initidx; 6107 6108 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6109 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6110 set_ua = 0; 6111 6112 user_cp = (struct scsi_control_page *)page_ptr; 6113 current_cp = (struct scsi_control_page *) 6114 (page_index->page_data + (page_index->page_len * 6115 CTL_PAGE_CURRENT)); 6116 saved_cp = (struct scsi_control_page *) 6117 (page_index->page_data + (page_index->page_len * 6118 CTL_PAGE_SAVED)); 6119 6120 softc = control_softc; 6121 6122 mtx_lock(&lun->lun_lock); 6123 if (((current_cp->rlec & SCP_DSENSE) == 0) 6124 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6125 /* 6126 * Descriptor sense is currently turned off and the user 6127 * wants to turn it on. 6128 */ 6129 current_cp->rlec |= SCP_DSENSE; 6130 saved_cp->rlec |= SCP_DSENSE; 6131 lun->flags |= CTL_LUN_SENSE_DESC; 6132 set_ua = 1; 6133 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6134 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6135 /* 6136 * Descriptor sense is currently turned on, and the user 6137 * wants to turn it off. 6138 */ 6139 current_cp->rlec &= ~SCP_DSENSE; 6140 saved_cp->rlec &= ~SCP_DSENSE; 6141 lun->flags &= ~CTL_LUN_SENSE_DESC; 6142 set_ua = 1; 6143 } 6144 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6145 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6146#ifdef NEEDTOPORT 6147 csevent_log(CSC_CTL | CSC_SHELF_SW | 6148 CTL_UNTAG_TO_UNTAG, 6149 csevent_LogType_Trace, 6150 csevent_Severity_Information, 6151 csevent_AlertLevel_Green, 6152 csevent_FRU_Firmware, 6153 csevent_FRU_Unknown, 6154 "Received untagged to untagged transition"); 6155#endif /* NEEDTOPORT */ 6156 } else { 6157#ifdef NEEDTOPORT 6158 csevent_log(CSC_CTL | CSC_SHELF_SW | 6159 CTL_UNTAG_TO_TAG, 6160 csevent_LogType_ConfigChange, 6161 csevent_Severity_Information, 6162 csevent_AlertLevel_Green, 6163 csevent_FRU_Firmware, 6164 csevent_FRU_Unknown, 6165 "Received untagged to tagged " 6166 "queueing transition"); 6167#endif /* NEEDTOPORT */ 6168 6169 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6170 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6171 set_ua = 1; 6172 } 6173 } else { 6174 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6175#ifdef NEEDTOPORT 6176 csevent_log(CSC_CTL | CSC_SHELF_SW | 6177 CTL_TAG_TO_UNTAG, 6178 csevent_LogType_ConfigChange, 6179 csevent_Severity_Warning, 6180 csevent_AlertLevel_Yellow, 6181 csevent_FRU_Firmware, 6182 csevent_FRU_Unknown, 6183 "Received tagged queueing to untagged " 6184 "transition"); 6185#endif /* NEEDTOPORT */ 6186 6187 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6188 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6189 set_ua = 1; 6190 } else { 6191#ifdef NEEDTOPORT 6192 csevent_log(CSC_CTL | CSC_SHELF_SW | 6193 CTL_TAG_TO_TAG, 6194 csevent_LogType_Trace, 6195 csevent_Severity_Information, 6196 csevent_AlertLevel_Green, 6197 csevent_FRU_Firmware, 6198 csevent_FRU_Unknown, 6199 "Received tagged queueing to tagged " 6200 "queueing transition"); 6201#endif /* NEEDTOPORT */ 6202 } 6203 } 6204 if (set_ua != 0) { 6205 int i; 6206 /* 6207 * Let other initiators know that the mode 6208 * parameters for this LUN have changed. 6209 */ 6210 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6211 if (i == initidx) 6212 continue; 6213 6214 lun->pending_sense[i].ua_pending |= 6215 CTL_UA_MODE_CHANGE; 6216 } 6217 } 6218 mtx_unlock(&lun->lun_lock); 6219 6220 return (0); 6221} 6222 6223int 6224ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6225 struct ctl_page_index *page_index, uint8_t *page_ptr) 6226{ 6227 return (0); 6228} 6229 6230int 6231ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6232 struct ctl_page_index *page_index, int pc) 6233{ 6234 struct copan_power_subpage *page; 6235 6236 page = (struct copan_power_subpage *)page_index->page_data + 6237 (page_index->page_len * pc); 6238 6239 switch (pc) { 6240 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6241 /* 6242 * We don't update the changable bits for this page. 6243 */ 6244 break; 6245 case SMS_PAGE_CTRL_CURRENT >> 6: 6246 case SMS_PAGE_CTRL_DEFAULT >> 6: 6247 case SMS_PAGE_CTRL_SAVED >> 6: 6248#ifdef NEEDTOPORT 6249 ctl_update_power_subpage(page); 6250#endif 6251 break; 6252 default: 6253#ifdef NEEDTOPORT 6254 EPRINT(0, "Invalid PC %d!!", pc); 6255#endif 6256 break; 6257 } 6258 return (0); 6259} 6260 6261 6262int 6263ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6264 struct ctl_page_index *page_index, uint8_t *page_ptr) 6265{ 6266 struct copan_aps_subpage *user_sp; 6267 struct copan_aps_subpage *current_sp; 6268 union ctl_modepage_info *modepage_info; 6269 struct ctl_softc *softc; 6270 struct ctl_lun *lun; 6271 int retval; 6272 6273 retval = CTL_RETVAL_COMPLETE; 6274 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6275 (page_index->page_len * CTL_PAGE_CURRENT)); 6276 softc = control_softc; 6277 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6278 6279 user_sp = (struct copan_aps_subpage *)page_ptr; 6280 6281 modepage_info = (union ctl_modepage_info *) 6282 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6283 6284 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6285 modepage_info->header.subpage = page_index->subpage; 6286 modepage_info->aps.lock_active = user_sp->lock_active; 6287 6288 mtx_lock(&softc->ctl_lock); 6289 6290 /* 6291 * If there is a request to lock the LUN and another LUN is locked 6292 * this is an error. If the requested LUN is already locked ignore 6293 * the request. If no LUN is locked attempt to lock it. 6294 * if there is a request to unlock the LUN and the LUN is currently 6295 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6296 * if another LUN is locked or no LUN is locked. 6297 */ 6298 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6299 if (softc->aps_locked_lun == lun->lun) { 6300 /* 6301 * This LUN is already locked, so we're done. 6302 */ 6303 retval = CTL_RETVAL_COMPLETE; 6304 } else if (softc->aps_locked_lun == 0) { 6305 /* 6306 * No one has the lock, pass the request to the 6307 * backend. 6308 */ 6309 retval = lun->backend->config_write( 6310 (union ctl_io *)ctsio); 6311 } else { 6312 /* 6313 * Someone else has the lock, throw out the request. 6314 */ 6315 ctl_set_already_locked(ctsio); 6316 free(ctsio->kern_data_ptr, M_CTL); 6317 ctl_done((union ctl_io *)ctsio); 6318 6319 /* 6320 * Set the return value so that ctl_do_mode_select() 6321 * won't try to complete the command. We already 6322 * completed it here. 6323 */ 6324 retval = CTL_RETVAL_ERROR; 6325 } 6326 } else if (softc->aps_locked_lun == lun->lun) { 6327 /* 6328 * This LUN is locked, so pass the unlock request to the 6329 * backend. 6330 */ 6331 retval = lun->backend->config_write((union ctl_io *)ctsio); 6332 } 6333 mtx_unlock(&softc->ctl_lock); 6334 6335 return (retval); 6336} 6337 6338int 6339ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6340 struct ctl_page_index *page_index, 6341 uint8_t *page_ptr) 6342{ 6343 uint8_t *c; 6344 int i; 6345 6346 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6347 ctl_time_io_secs = 6348 (c[0] << 8) | 6349 (c[1] << 0) | 6350 0; 6351 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6352 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6353 printf("page data:"); 6354 for (i=0; i<8; i++) 6355 printf(" %.2x",page_ptr[i]); 6356 printf("\n"); 6357 return (0); 6358} 6359 6360int 6361ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6362 struct ctl_page_index *page_index, 6363 int pc) 6364{ 6365 struct copan_debugconf_subpage *page; 6366 6367 page = (struct copan_debugconf_subpage *)page_index->page_data + 6368 (page_index->page_len * pc); 6369 6370 switch (pc) { 6371 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6372 case SMS_PAGE_CTRL_DEFAULT >> 6: 6373 case SMS_PAGE_CTRL_SAVED >> 6: 6374 /* 6375 * We don't update the changable or default bits for this page. 6376 */ 6377 break; 6378 case SMS_PAGE_CTRL_CURRENT >> 6: 6379 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6380 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6381 break; 6382 default: 6383#ifdef NEEDTOPORT 6384 EPRINT(0, "Invalid PC %d!!", pc); 6385#endif /* NEEDTOPORT */ 6386 break; 6387 } 6388 return (0); 6389} 6390 6391 6392static int 6393ctl_do_mode_select(union ctl_io *io) 6394{ 6395 struct scsi_mode_page_header *page_header; 6396 struct ctl_page_index *page_index; 6397 struct ctl_scsiio *ctsio; 6398 int control_dev, page_len; 6399 int page_len_offset, page_len_size; 6400 union ctl_modepage_info *modepage_info; 6401 struct ctl_lun *lun; 6402 int *len_left, *len_used; 6403 int retval, i; 6404 6405 ctsio = &io->scsiio; 6406 page_index = NULL; 6407 page_len = 0; 6408 retval = CTL_RETVAL_COMPLETE; 6409 6410 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6411 6412 if (lun->be_lun->lun_type != T_DIRECT) 6413 control_dev = 1; 6414 else 6415 control_dev = 0; 6416 6417 modepage_info = (union ctl_modepage_info *) 6418 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6419 len_left = &modepage_info->header.len_left; 6420 len_used = &modepage_info->header.len_used; 6421 6422do_next_page: 6423 6424 page_header = (struct scsi_mode_page_header *) 6425 (ctsio->kern_data_ptr + *len_used); 6426 6427 if (*len_left == 0) { 6428 free(ctsio->kern_data_ptr, M_CTL); 6429 ctl_set_success(ctsio); 6430 ctl_done((union ctl_io *)ctsio); 6431 return (CTL_RETVAL_COMPLETE); 6432 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6433 6434 free(ctsio->kern_data_ptr, M_CTL); 6435 ctl_set_param_len_error(ctsio); 6436 ctl_done((union ctl_io *)ctsio); 6437 return (CTL_RETVAL_COMPLETE); 6438 6439 } else if ((page_header->page_code & SMPH_SPF) 6440 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6441 6442 free(ctsio->kern_data_ptr, M_CTL); 6443 ctl_set_param_len_error(ctsio); 6444 ctl_done((union ctl_io *)ctsio); 6445 return (CTL_RETVAL_COMPLETE); 6446 } 6447 6448 6449 /* 6450 * XXX KDM should we do something with the block descriptor? 6451 */ 6452 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6453 6454 if ((control_dev != 0) 6455 && (lun->mode_pages.index[i].page_flags & 6456 CTL_PAGE_FLAG_DISK_ONLY)) 6457 continue; 6458 6459 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6460 (page_header->page_code & SMPH_PC_MASK)) 6461 continue; 6462 6463 /* 6464 * If neither page has a subpage code, then we've got a 6465 * match. 6466 */ 6467 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6468 && ((page_header->page_code & SMPH_SPF) == 0)) { 6469 page_index = &lun->mode_pages.index[i]; 6470 page_len = page_header->page_length; 6471 break; 6472 } 6473 6474 /* 6475 * If both pages have subpages, then the subpage numbers 6476 * have to match. 6477 */ 6478 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6479 && (page_header->page_code & SMPH_SPF)) { 6480 struct scsi_mode_page_header_sp *sph; 6481 6482 sph = (struct scsi_mode_page_header_sp *)page_header; 6483 6484 if (lun->mode_pages.index[i].subpage == 6485 sph->subpage) { 6486 page_index = &lun->mode_pages.index[i]; 6487 page_len = scsi_2btoul(sph->page_length); 6488 break; 6489 } 6490 } 6491 } 6492 6493 /* 6494 * If we couldn't find the page, or if we don't have a mode select 6495 * handler for it, send back an error to the user. 6496 */ 6497 if ((page_index == NULL) 6498 || (page_index->select_handler == NULL)) { 6499 ctl_set_invalid_field(ctsio, 6500 /*sks_valid*/ 1, 6501 /*command*/ 0, 6502 /*field*/ *len_used, 6503 /*bit_valid*/ 0, 6504 /*bit*/ 0); 6505 free(ctsio->kern_data_ptr, M_CTL); 6506 ctl_done((union ctl_io *)ctsio); 6507 return (CTL_RETVAL_COMPLETE); 6508 } 6509 6510 if (page_index->page_code & SMPH_SPF) { 6511 page_len_offset = 2; 6512 page_len_size = 2; 6513 } else { 6514 page_len_size = 1; 6515 page_len_offset = 1; 6516 } 6517 6518 /* 6519 * If the length the initiator gives us isn't the one we specify in 6520 * the mode page header, or if they didn't specify enough data in 6521 * the CDB to avoid truncating this page, kick out the request. 6522 */ 6523 if ((page_len != (page_index->page_len - page_len_offset - 6524 page_len_size)) 6525 || (*len_left < page_index->page_len)) { 6526 6527 6528 ctl_set_invalid_field(ctsio, 6529 /*sks_valid*/ 1, 6530 /*command*/ 0, 6531 /*field*/ *len_used + page_len_offset, 6532 /*bit_valid*/ 0, 6533 /*bit*/ 0); 6534 free(ctsio->kern_data_ptr, M_CTL); 6535 ctl_done((union ctl_io *)ctsio); 6536 return (CTL_RETVAL_COMPLETE); 6537 } 6538 6539 /* 6540 * Run through the mode page, checking to make sure that the bits 6541 * the user changed are actually legal for him to change. 6542 */ 6543 for (i = 0; i < page_index->page_len; i++) { 6544 uint8_t *user_byte, *change_mask, *current_byte; 6545 int bad_bit; 6546 int j; 6547 6548 user_byte = (uint8_t *)page_header + i; 6549 change_mask = page_index->page_data + 6550 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6551 current_byte = page_index->page_data + 6552 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6553 6554 /* 6555 * Check to see whether the user set any bits in this byte 6556 * that he is not allowed to set. 6557 */ 6558 if ((*user_byte & ~(*change_mask)) == 6559 (*current_byte & ~(*change_mask))) 6560 continue; 6561 6562 /* 6563 * Go through bit by bit to determine which one is illegal. 6564 */ 6565 bad_bit = 0; 6566 for (j = 7; j >= 0; j--) { 6567 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6568 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6569 bad_bit = i; 6570 break; 6571 } 6572 } 6573 ctl_set_invalid_field(ctsio, 6574 /*sks_valid*/ 1, 6575 /*command*/ 0, 6576 /*field*/ *len_used + i, 6577 /*bit_valid*/ 1, 6578 /*bit*/ bad_bit); 6579 free(ctsio->kern_data_ptr, M_CTL); 6580 ctl_done((union ctl_io *)ctsio); 6581 return (CTL_RETVAL_COMPLETE); 6582 } 6583 6584 /* 6585 * Decrement these before we call the page handler, since we may 6586 * end up getting called back one way or another before the handler 6587 * returns to this context. 6588 */ 6589 *len_left -= page_index->page_len; 6590 *len_used += page_index->page_len; 6591 6592 retval = page_index->select_handler(ctsio, page_index, 6593 (uint8_t *)page_header); 6594 6595 /* 6596 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6597 * wait until this queued command completes to finish processing 6598 * the mode page. If it returns anything other than 6599 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6600 * already set the sense information, freed the data pointer, and 6601 * completed the io for us. 6602 */ 6603 if (retval != CTL_RETVAL_COMPLETE) 6604 goto bailout_no_done; 6605 6606 /* 6607 * If the initiator sent us more than one page, parse the next one. 6608 */ 6609 if (*len_left > 0) 6610 goto do_next_page; 6611 6612 ctl_set_success(ctsio); 6613 free(ctsio->kern_data_ptr, M_CTL); 6614 ctl_done((union ctl_io *)ctsio); 6615 6616bailout_no_done: 6617 6618 return (CTL_RETVAL_COMPLETE); 6619 6620} 6621 6622int 6623ctl_mode_select(struct ctl_scsiio *ctsio) 6624{ 6625 int param_len, pf, sp; 6626 int header_size, bd_len; 6627 int len_left, len_used; 6628 struct ctl_page_index *page_index; 6629 struct ctl_lun *lun; 6630 int control_dev, page_len; 6631 union ctl_modepage_info *modepage_info; 6632 int retval; 6633 6634 pf = 0; 6635 sp = 0; 6636 page_len = 0; 6637 len_used = 0; 6638 len_left = 0; 6639 retval = 0; 6640 bd_len = 0; 6641 page_index = NULL; 6642 6643 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6644 6645 if (lun->be_lun->lun_type != T_DIRECT) 6646 control_dev = 1; 6647 else 6648 control_dev = 0; 6649 6650 switch (ctsio->cdb[0]) { 6651 case MODE_SELECT_6: { 6652 struct scsi_mode_select_6 *cdb; 6653 6654 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6655 6656 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6657 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6658 6659 param_len = cdb->length; 6660 header_size = sizeof(struct scsi_mode_header_6); 6661 break; 6662 } 6663 case MODE_SELECT_10: { 6664 struct scsi_mode_select_10 *cdb; 6665 6666 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6667 6668 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6669 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6670 6671 param_len = scsi_2btoul(cdb->length); 6672 header_size = sizeof(struct scsi_mode_header_10); 6673 break; 6674 } 6675 default: 6676 ctl_set_invalid_opcode(ctsio); 6677 ctl_done((union ctl_io *)ctsio); 6678 return (CTL_RETVAL_COMPLETE); 6679 break; /* NOTREACHED */ 6680 } 6681 6682 /* 6683 * From SPC-3: 6684 * "A parameter list length of zero indicates that the Data-Out Buffer 6685 * shall be empty. This condition shall not be considered as an error." 6686 */ 6687 if (param_len == 0) { 6688 ctl_set_success(ctsio); 6689 ctl_done((union ctl_io *)ctsio); 6690 return (CTL_RETVAL_COMPLETE); 6691 } 6692 6693 /* 6694 * Since we'll hit this the first time through, prior to 6695 * allocation, we don't need to free a data buffer here. 6696 */ 6697 if (param_len < header_size) { 6698 ctl_set_param_len_error(ctsio); 6699 ctl_done((union ctl_io *)ctsio); 6700 return (CTL_RETVAL_COMPLETE); 6701 } 6702 6703 /* 6704 * Allocate the data buffer and grab the user's data. In theory, 6705 * we shouldn't have to sanity check the parameter list length here 6706 * because the maximum size is 64K. We should be able to malloc 6707 * that much without too many problems. 6708 */ 6709 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6710 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6711 ctsio->kern_data_len = param_len; 6712 ctsio->kern_total_len = param_len; 6713 ctsio->kern_data_resid = 0; 6714 ctsio->kern_rel_offset = 0; 6715 ctsio->kern_sg_entries = 0; 6716 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6717 ctsio->be_move_done = ctl_config_move_done; 6718 ctl_datamove((union ctl_io *)ctsio); 6719 6720 return (CTL_RETVAL_COMPLETE); 6721 } 6722 6723 switch (ctsio->cdb[0]) { 6724 case MODE_SELECT_6: { 6725 struct scsi_mode_header_6 *mh6; 6726 6727 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6728 bd_len = mh6->blk_desc_len; 6729 break; 6730 } 6731 case MODE_SELECT_10: { 6732 struct scsi_mode_header_10 *mh10; 6733 6734 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6735 bd_len = scsi_2btoul(mh10->blk_desc_len); 6736 break; 6737 } 6738 default: 6739 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6740 break; 6741 } 6742 6743 if (param_len < (header_size + bd_len)) { 6744 free(ctsio->kern_data_ptr, M_CTL); 6745 ctl_set_param_len_error(ctsio); 6746 ctl_done((union ctl_io *)ctsio); 6747 return (CTL_RETVAL_COMPLETE); 6748 } 6749 6750 /* 6751 * Set the IO_CONT flag, so that if this I/O gets passed to 6752 * ctl_config_write_done(), it'll get passed back to 6753 * ctl_do_mode_select() for further processing, or completion if 6754 * we're all done. 6755 */ 6756 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6757 ctsio->io_cont = ctl_do_mode_select; 6758 6759 modepage_info = (union ctl_modepage_info *) 6760 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6761 6762 memset(modepage_info, 0, sizeof(*modepage_info)); 6763 6764 len_left = param_len - header_size - bd_len; 6765 len_used = header_size + bd_len; 6766 6767 modepage_info->header.len_left = len_left; 6768 modepage_info->header.len_used = len_used; 6769 6770 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6771} 6772 6773int 6774ctl_mode_sense(struct ctl_scsiio *ctsio) 6775{ 6776 struct ctl_lun *lun; 6777 int pc, page_code, dbd, llba, subpage; 6778 int alloc_len, page_len, header_len, total_len; 6779 struct scsi_mode_block_descr *block_desc; 6780 struct ctl_page_index *page_index; 6781 int control_dev; 6782 6783 dbd = 0; 6784 llba = 0; 6785 block_desc = NULL; 6786 page_index = NULL; 6787 6788 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6789 6790 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6791 6792 if (lun->be_lun->lun_type != T_DIRECT) 6793 control_dev = 1; 6794 else 6795 control_dev = 0; 6796 6797 if (lun->flags & CTL_LUN_PR_RESERVED) { 6798 uint32_t residx; 6799 6800 /* 6801 * XXX KDM need a lock here. 6802 */ 6803 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6804 if ((lun->res_type == SPR_TYPE_EX_AC 6805 && residx != lun->pr_res_idx) 6806 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6807 || lun->res_type == SPR_TYPE_EX_AC_AR) 6808 && !lun->per_res[residx].registered)) { 6809 ctl_set_reservation_conflict(ctsio); 6810 ctl_done((union ctl_io *)ctsio); 6811 return (CTL_RETVAL_COMPLETE); 6812 } 6813 } 6814 6815 switch (ctsio->cdb[0]) { 6816 case MODE_SENSE_6: { 6817 struct scsi_mode_sense_6 *cdb; 6818 6819 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6820 6821 header_len = sizeof(struct scsi_mode_hdr_6); 6822 if (cdb->byte2 & SMS_DBD) 6823 dbd = 1; 6824 else 6825 header_len += sizeof(struct scsi_mode_block_descr); 6826 6827 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6828 page_code = cdb->page & SMS_PAGE_CODE; 6829 subpage = cdb->subpage; 6830 alloc_len = cdb->length; 6831 break; 6832 } 6833 case MODE_SENSE_10: { 6834 struct scsi_mode_sense_10 *cdb; 6835 6836 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6837 6838 header_len = sizeof(struct scsi_mode_hdr_10); 6839 6840 if (cdb->byte2 & SMS_DBD) 6841 dbd = 1; 6842 else 6843 header_len += sizeof(struct scsi_mode_block_descr); 6844 if (cdb->byte2 & SMS10_LLBAA) 6845 llba = 1; 6846 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6847 page_code = cdb->page & SMS_PAGE_CODE; 6848 subpage = cdb->subpage; 6849 alloc_len = scsi_2btoul(cdb->length); 6850 break; 6851 } 6852 default: 6853 ctl_set_invalid_opcode(ctsio); 6854 ctl_done((union ctl_io *)ctsio); 6855 return (CTL_RETVAL_COMPLETE); 6856 break; /* NOTREACHED */ 6857 } 6858 6859 /* 6860 * We have to make a first pass through to calculate the size of 6861 * the pages that match the user's query. Then we allocate enough 6862 * memory to hold it, and actually copy the data into the buffer. 6863 */ 6864 switch (page_code) { 6865 case SMS_ALL_PAGES_PAGE: { 6866 int i; 6867 6868 page_len = 0; 6869 6870 /* 6871 * At the moment, values other than 0 and 0xff here are 6872 * reserved according to SPC-3. 6873 */ 6874 if ((subpage != SMS_SUBPAGE_PAGE_0) 6875 && (subpage != SMS_SUBPAGE_ALL)) { 6876 ctl_set_invalid_field(ctsio, 6877 /*sks_valid*/ 1, 6878 /*command*/ 1, 6879 /*field*/ 3, 6880 /*bit_valid*/ 0, 6881 /*bit*/ 0); 6882 ctl_done((union ctl_io *)ctsio); 6883 return (CTL_RETVAL_COMPLETE); 6884 } 6885 6886 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6887 if ((control_dev != 0) 6888 && (lun->mode_pages.index[i].page_flags & 6889 CTL_PAGE_FLAG_DISK_ONLY)) 6890 continue; 6891 6892 /* 6893 * We don't use this subpage if the user didn't 6894 * request all subpages. 6895 */ 6896 if ((lun->mode_pages.index[i].subpage != 0) 6897 && (subpage == SMS_SUBPAGE_PAGE_0)) 6898 continue; 6899 6900#if 0 6901 printf("found page %#x len %d\n", 6902 lun->mode_pages.index[i].page_code & 6903 SMPH_PC_MASK, 6904 lun->mode_pages.index[i].page_len); 6905#endif 6906 page_len += lun->mode_pages.index[i].page_len; 6907 } 6908 break; 6909 } 6910 default: { 6911 int i; 6912 6913 page_len = 0; 6914 6915 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6916 /* Look for the right page code */ 6917 if ((lun->mode_pages.index[i].page_code & 6918 SMPH_PC_MASK) != page_code) 6919 continue; 6920 6921 /* Look for the right subpage or the subpage wildcard*/ 6922 if ((lun->mode_pages.index[i].subpage != subpage) 6923 && (subpage != SMS_SUBPAGE_ALL)) 6924 continue; 6925 6926 /* Make sure the page is supported for this dev type */ 6927 if ((control_dev != 0) 6928 && (lun->mode_pages.index[i].page_flags & 6929 CTL_PAGE_FLAG_DISK_ONLY)) 6930 continue; 6931 6932#if 0 6933 printf("found page %#x len %d\n", 6934 lun->mode_pages.index[i].page_code & 6935 SMPH_PC_MASK, 6936 lun->mode_pages.index[i].page_len); 6937#endif 6938 6939 page_len += lun->mode_pages.index[i].page_len; 6940 } 6941 6942 if (page_len == 0) { 6943 ctl_set_invalid_field(ctsio, 6944 /*sks_valid*/ 1, 6945 /*command*/ 1, 6946 /*field*/ 2, 6947 /*bit_valid*/ 1, 6948 /*bit*/ 5); 6949 ctl_done((union ctl_io *)ctsio); 6950 return (CTL_RETVAL_COMPLETE); 6951 } 6952 break; 6953 } 6954 } 6955 6956 total_len = header_len + page_len; 6957#if 0 6958 printf("header_len = %d, page_len = %d, total_len = %d\n", 6959 header_len, page_len, total_len); 6960#endif 6961 6962 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6963 ctsio->kern_sg_entries = 0; 6964 ctsio->kern_data_resid = 0; 6965 ctsio->kern_rel_offset = 0; 6966 if (total_len < alloc_len) { 6967 ctsio->residual = alloc_len - total_len; 6968 ctsio->kern_data_len = total_len; 6969 ctsio->kern_total_len = total_len; 6970 } else { 6971 ctsio->residual = 0; 6972 ctsio->kern_data_len = alloc_len; 6973 ctsio->kern_total_len = alloc_len; 6974 } 6975 6976 switch (ctsio->cdb[0]) { 6977 case MODE_SENSE_6: { 6978 struct scsi_mode_hdr_6 *header; 6979 6980 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6981 6982 header->datalen = ctl_min(total_len - 1, 254); 6983 6984 if (dbd) 6985 header->block_descr_len = 0; 6986 else 6987 header->block_descr_len = 6988 sizeof(struct scsi_mode_block_descr); 6989 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6990 break; 6991 } 6992 case MODE_SENSE_10: { 6993 struct scsi_mode_hdr_10 *header; 6994 int datalen; 6995 6996 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6997 6998 datalen = ctl_min(total_len - 2, 65533); 6999 scsi_ulto2b(datalen, header->datalen); 7000 if (dbd) 7001 scsi_ulto2b(0, header->block_descr_len); 7002 else 7003 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7004 header->block_descr_len); 7005 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7006 break; 7007 } 7008 default: 7009 panic("invalid CDB type %#x", ctsio->cdb[0]); 7010 break; /* NOTREACHED */ 7011 } 7012 7013 /* 7014 * If we've got a disk, use its blocksize in the block 7015 * descriptor. Otherwise, just set it to 0. 7016 */ 7017 if (dbd == 0) { 7018 if (control_dev != 0) 7019 scsi_ulto3b(lun->be_lun->blocksize, 7020 block_desc->block_len); 7021 else 7022 scsi_ulto3b(0, block_desc->block_len); 7023 } 7024 7025 switch (page_code) { 7026 case SMS_ALL_PAGES_PAGE: { 7027 int i, data_used; 7028 7029 data_used = header_len; 7030 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7031 struct ctl_page_index *page_index; 7032 7033 page_index = &lun->mode_pages.index[i]; 7034 7035 if ((control_dev != 0) 7036 && (page_index->page_flags & 7037 CTL_PAGE_FLAG_DISK_ONLY)) 7038 continue; 7039 7040 /* 7041 * We don't use this subpage if the user didn't 7042 * request all subpages. We already checked (above) 7043 * to make sure the user only specified a subpage 7044 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7045 */ 7046 if ((page_index->subpage != 0) 7047 && (subpage == SMS_SUBPAGE_PAGE_0)) 7048 continue; 7049 7050 /* 7051 * Call the handler, if it exists, to update the 7052 * page to the latest values. 7053 */ 7054 if (page_index->sense_handler != NULL) 7055 page_index->sense_handler(ctsio, page_index,pc); 7056 7057 memcpy(ctsio->kern_data_ptr + data_used, 7058 page_index->page_data + 7059 (page_index->page_len * pc), 7060 page_index->page_len); 7061 data_used += page_index->page_len; 7062 } 7063 break; 7064 } 7065 default: { 7066 int i, data_used; 7067 7068 data_used = header_len; 7069 7070 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7071 struct ctl_page_index *page_index; 7072 7073 page_index = &lun->mode_pages.index[i]; 7074 7075 /* Look for the right page code */ 7076 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7077 continue; 7078 7079 /* Look for the right subpage or the subpage wildcard*/ 7080 if ((page_index->subpage != subpage) 7081 && (subpage != SMS_SUBPAGE_ALL)) 7082 continue; 7083 7084 /* Make sure the page is supported for this dev type */ 7085 if ((control_dev != 0) 7086 && (page_index->page_flags & 7087 CTL_PAGE_FLAG_DISK_ONLY)) 7088 continue; 7089 7090 /* 7091 * Call the handler, if it exists, to update the 7092 * page to the latest values. 7093 */ 7094 if (page_index->sense_handler != NULL) 7095 page_index->sense_handler(ctsio, page_index,pc); 7096 7097 memcpy(ctsio->kern_data_ptr + data_used, 7098 page_index->page_data + 7099 (page_index->page_len * pc), 7100 page_index->page_len); 7101 data_used += page_index->page_len; 7102 } 7103 break; 7104 } 7105 } 7106 7107 ctsio->scsi_status = SCSI_STATUS_OK; 7108 7109 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7110 ctsio->be_move_done = ctl_config_move_done; 7111 ctl_datamove((union ctl_io *)ctsio); 7112 7113 return (CTL_RETVAL_COMPLETE); 7114} 7115 7116int 7117ctl_read_capacity(struct ctl_scsiio *ctsio) 7118{ 7119 struct scsi_read_capacity *cdb; 7120 struct scsi_read_capacity_data *data; 7121 struct ctl_lun *lun; 7122 uint32_t lba; 7123 7124 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7125 7126 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7127 7128 lba = scsi_4btoul(cdb->addr); 7129 if (((cdb->pmi & SRC_PMI) == 0) 7130 && (lba != 0)) { 7131 ctl_set_invalid_field(/*ctsio*/ ctsio, 7132 /*sks_valid*/ 1, 7133 /*command*/ 1, 7134 /*field*/ 2, 7135 /*bit_valid*/ 0, 7136 /*bit*/ 0); 7137 ctl_done((union ctl_io *)ctsio); 7138 return (CTL_RETVAL_COMPLETE); 7139 } 7140 7141 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7142 7143 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7144 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7145 ctsio->residual = 0; 7146 ctsio->kern_data_len = sizeof(*data); 7147 ctsio->kern_total_len = sizeof(*data); 7148 ctsio->kern_data_resid = 0; 7149 ctsio->kern_rel_offset = 0; 7150 ctsio->kern_sg_entries = 0; 7151 7152 /* 7153 * If the maximum LBA is greater than 0xfffffffe, the user must 7154 * issue a SERVICE ACTION IN (16) command, with the read capacity 7155 * serivce action set. 7156 */ 7157 if (lun->be_lun->maxlba > 0xfffffffe) 7158 scsi_ulto4b(0xffffffff, data->addr); 7159 else 7160 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7161 7162 /* 7163 * XXX KDM this may not be 512 bytes... 7164 */ 7165 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7166 7167 ctsio->scsi_status = SCSI_STATUS_OK; 7168 7169 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7170 ctsio->be_move_done = ctl_config_move_done; 7171 ctl_datamove((union ctl_io *)ctsio); 7172 7173 return (CTL_RETVAL_COMPLETE); 7174} 7175 7176int 7177ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7178{ 7179 struct scsi_read_capacity_16 *cdb; 7180 struct scsi_read_capacity_data_long *data; 7181 struct ctl_lun *lun; 7182 uint64_t lba; 7183 uint32_t alloc_len; 7184 7185 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7186 7187 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7188 7189 alloc_len = scsi_4btoul(cdb->alloc_len); 7190 lba = scsi_8btou64(cdb->addr); 7191 7192 if ((cdb->reladr & SRC16_PMI) 7193 && (lba != 0)) { 7194 ctl_set_invalid_field(/*ctsio*/ ctsio, 7195 /*sks_valid*/ 1, 7196 /*command*/ 1, 7197 /*field*/ 2, 7198 /*bit_valid*/ 0, 7199 /*bit*/ 0); 7200 ctl_done((union ctl_io *)ctsio); 7201 return (CTL_RETVAL_COMPLETE); 7202 } 7203 7204 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7205 7206 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7207 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7208 7209 if (sizeof(*data) < alloc_len) { 7210 ctsio->residual = alloc_len - sizeof(*data); 7211 ctsio->kern_data_len = sizeof(*data); 7212 ctsio->kern_total_len = sizeof(*data); 7213 } else { 7214 ctsio->residual = 0; 7215 ctsio->kern_data_len = alloc_len; 7216 ctsio->kern_total_len = alloc_len; 7217 } 7218 ctsio->kern_data_resid = 0; 7219 ctsio->kern_rel_offset = 0; 7220 ctsio->kern_sg_entries = 0; 7221 7222 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7223 /* XXX KDM this may not be 512 bytes... */ 7224 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7225 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7226 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7227 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7228 data->lalba_lbp[0] |= SRC16_LBPME; 7229 7230 ctsio->scsi_status = SCSI_STATUS_OK; 7231 7232 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7233 ctsio->be_move_done = ctl_config_move_done; 7234 ctl_datamove((union ctl_io *)ctsio); 7235 7236 return (CTL_RETVAL_COMPLETE); 7237} 7238 7239int 7240ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7241{ 7242 struct scsi_maintenance_in *cdb; 7243 int retval; 7244 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7245 int num_target_port_groups, num_target_ports, single; 7246 struct ctl_lun *lun; 7247 struct ctl_softc *softc; 7248 struct ctl_port *port; 7249 struct scsi_target_group_data *rtg_ptr; 7250 struct scsi_target_group_data_extended *rtg_ext_ptr; 7251 struct scsi_target_port_group_descriptor *tpg_desc; 7252 7253 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7254 7255 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7256 softc = control_softc; 7257 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7258 7259 retval = CTL_RETVAL_COMPLETE; 7260 7261 switch (cdb->byte2 & STG_PDF_MASK) { 7262 case STG_PDF_LENGTH: 7263 ext = 0; 7264 break; 7265 case STG_PDF_EXTENDED: 7266 ext = 1; 7267 break; 7268 default: 7269 ctl_set_invalid_field(/*ctsio*/ ctsio, 7270 /*sks_valid*/ 1, 7271 /*command*/ 1, 7272 /*field*/ 2, 7273 /*bit_valid*/ 1, 7274 /*bit*/ 5); 7275 ctl_done((union ctl_io *)ctsio); 7276 return(retval); 7277 } 7278 7279 single = ctl_is_single; 7280 if (single) 7281 num_target_port_groups = 1; 7282 else 7283 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7284 num_target_ports = 0; 7285 mtx_lock(&softc->ctl_lock); 7286 STAILQ_FOREACH(port, &softc->port_list, links) { 7287 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7288 continue; 7289 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7290 continue; 7291 num_target_ports++; 7292 } 7293 mtx_unlock(&softc->ctl_lock); 7294 7295 if (ext) 7296 total_len = sizeof(struct scsi_target_group_data_extended); 7297 else 7298 total_len = sizeof(struct scsi_target_group_data); 7299 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7300 num_target_port_groups + 7301 sizeof(struct scsi_target_port_descriptor) * 7302 num_target_ports * num_target_port_groups; 7303 7304 alloc_len = scsi_4btoul(cdb->length); 7305 7306 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7307 7308 ctsio->kern_sg_entries = 0; 7309 7310 if (total_len < alloc_len) { 7311 ctsio->residual = alloc_len - total_len; 7312 ctsio->kern_data_len = total_len; 7313 ctsio->kern_total_len = total_len; 7314 } else { 7315 ctsio->residual = 0; 7316 ctsio->kern_data_len = alloc_len; 7317 ctsio->kern_total_len = alloc_len; 7318 } 7319 ctsio->kern_data_resid = 0; 7320 ctsio->kern_rel_offset = 0; 7321 7322 if (ext) { 7323 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7324 ctsio->kern_data_ptr; 7325 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7326 rtg_ext_ptr->format_type = 0x10; 7327 rtg_ext_ptr->implicit_transition_time = 0; 7328 tpg_desc = &rtg_ext_ptr->groups[0]; 7329 } else { 7330 rtg_ptr = (struct scsi_target_group_data *) 7331 ctsio->kern_data_ptr; 7332 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7333 tpg_desc = &rtg_ptr->groups[0]; 7334 } 7335 7336 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7337 mtx_lock(&softc->ctl_lock); 7338 for (g = 0; g < num_target_port_groups; g++) { 7339 if (g == pg) 7340 tpg_desc->pref_state = TPG_PRIMARY | 7341 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7342 else 7343 tpg_desc->pref_state = 7344 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7345 tpg_desc->support = TPG_AO_SUP; 7346 if (!single) 7347 tpg_desc->support |= TPG_AN_SUP; 7348 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7349 tpg_desc->status = TPG_IMPLICIT; 7350 pc = 0; 7351 STAILQ_FOREACH(port, &softc->port_list, links) { 7352 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7353 continue; 7354 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7355 CTL_MAX_LUNS) 7356 continue; 7357 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7358 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7359 relative_target_port_identifier); 7360 pc++; 7361 } 7362 tpg_desc->target_port_count = pc; 7363 tpg_desc = (struct scsi_target_port_group_descriptor *) 7364 &tpg_desc->descriptors[pc]; 7365 } 7366 mtx_unlock(&softc->ctl_lock); 7367 7368 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7369 ctsio->be_move_done = ctl_config_move_done; 7370 7371 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7372 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7373 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7374 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7375 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7376 7377 ctl_datamove((union ctl_io *)ctsio); 7378 return(retval); 7379} 7380 7381int 7382ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7383{ 7384 struct ctl_lun *lun; 7385 struct scsi_report_supported_opcodes *cdb; 7386 const struct ctl_cmd_entry *entry, *sentry; 7387 struct scsi_report_supported_opcodes_all *all; 7388 struct scsi_report_supported_opcodes_descr *descr; 7389 struct scsi_report_supported_opcodes_one *one; 7390 int retval; 7391 int alloc_len, total_len; 7392 int opcode, service_action, i, j, num; 7393 7394 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7395 7396 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7397 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7398 7399 retval = CTL_RETVAL_COMPLETE; 7400 7401 opcode = cdb->requested_opcode; 7402 service_action = scsi_2btoul(cdb->requested_service_action); 7403 switch (cdb->options & RSO_OPTIONS_MASK) { 7404 case RSO_OPTIONS_ALL: 7405 num = 0; 7406 for (i = 0; i < 256; i++) { 7407 entry = &ctl_cmd_table[i]; 7408 if (entry->flags & CTL_CMD_FLAG_SA5) { 7409 for (j = 0; j < 32; j++) { 7410 sentry = &((const struct ctl_cmd_entry *) 7411 entry->execute)[j]; 7412 if (ctl_cmd_applicable( 7413 lun->be_lun->lun_type, sentry)) 7414 num++; 7415 } 7416 } else { 7417 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7418 entry)) 7419 num++; 7420 } 7421 } 7422 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7423 num * sizeof(struct scsi_report_supported_opcodes_descr); 7424 break; 7425 case RSO_OPTIONS_OC: 7426 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7427 ctl_set_invalid_field(/*ctsio*/ ctsio, 7428 /*sks_valid*/ 1, 7429 /*command*/ 1, 7430 /*field*/ 2, 7431 /*bit_valid*/ 1, 7432 /*bit*/ 2); 7433 ctl_done((union ctl_io *)ctsio); 7434 return (CTL_RETVAL_COMPLETE); 7435 } 7436 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7437 break; 7438 case RSO_OPTIONS_OC_SA: 7439 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7440 service_action >= 32) { 7441 ctl_set_invalid_field(/*ctsio*/ ctsio, 7442 /*sks_valid*/ 1, 7443 /*command*/ 1, 7444 /*field*/ 2, 7445 /*bit_valid*/ 1, 7446 /*bit*/ 2); 7447 ctl_done((union ctl_io *)ctsio); 7448 return (CTL_RETVAL_COMPLETE); 7449 } 7450 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7451 break; 7452 default: 7453 ctl_set_invalid_field(/*ctsio*/ ctsio, 7454 /*sks_valid*/ 1, 7455 /*command*/ 1, 7456 /*field*/ 2, 7457 /*bit_valid*/ 1, 7458 /*bit*/ 2); 7459 ctl_done((union ctl_io *)ctsio); 7460 return (CTL_RETVAL_COMPLETE); 7461 } 7462 7463 alloc_len = scsi_4btoul(cdb->length); 7464 7465 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7466 7467 ctsio->kern_sg_entries = 0; 7468 7469 if (total_len < alloc_len) { 7470 ctsio->residual = alloc_len - total_len; 7471 ctsio->kern_data_len = total_len; 7472 ctsio->kern_total_len = total_len; 7473 } else { 7474 ctsio->residual = 0; 7475 ctsio->kern_data_len = alloc_len; 7476 ctsio->kern_total_len = alloc_len; 7477 } 7478 ctsio->kern_data_resid = 0; 7479 ctsio->kern_rel_offset = 0; 7480 7481 switch (cdb->options & RSO_OPTIONS_MASK) { 7482 case RSO_OPTIONS_ALL: 7483 all = (struct scsi_report_supported_opcodes_all *) 7484 ctsio->kern_data_ptr; 7485 num = 0; 7486 for (i = 0; i < 256; i++) { 7487 entry = &ctl_cmd_table[i]; 7488 if (entry->flags & CTL_CMD_FLAG_SA5) { 7489 for (j = 0; j < 32; j++) { 7490 sentry = &((const struct ctl_cmd_entry *) 7491 entry->execute)[j]; 7492 if (!ctl_cmd_applicable( 7493 lun->be_lun->lun_type, sentry)) 7494 continue; 7495 descr = &all->descr[num++]; 7496 descr->opcode = i; 7497 scsi_ulto2b(j, descr->service_action); 7498 descr->flags = RSO_SERVACTV; 7499 scsi_ulto2b(sentry->length, 7500 descr->cdb_length); 7501 } 7502 } else { 7503 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7504 entry)) 7505 continue; 7506 descr = &all->descr[num++]; 7507 descr->opcode = i; 7508 scsi_ulto2b(0, descr->service_action); 7509 descr->flags = 0; 7510 scsi_ulto2b(entry->length, descr->cdb_length); 7511 } 7512 } 7513 scsi_ulto4b( 7514 num * sizeof(struct scsi_report_supported_opcodes_descr), 7515 all->length); 7516 break; 7517 case RSO_OPTIONS_OC: 7518 one = (struct scsi_report_supported_opcodes_one *) 7519 ctsio->kern_data_ptr; 7520 entry = &ctl_cmd_table[opcode]; 7521 goto fill_one; 7522 case RSO_OPTIONS_OC_SA: 7523 one = (struct scsi_report_supported_opcodes_one *) 7524 ctsio->kern_data_ptr; 7525 entry = &ctl_cmd_table[opcode]; 7526 entry = &((const struct ctl_cmd_entry *) 7527 entry->execute)[service_action]; 7528fill_one: 7529 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7530 one->support = 3; 7531 scsi_ulto2b(entry->length, one->cdb_length); 7532 one->cdb_usage[0] = opcode; 7533 memcpy(&one->cdb_usage[1], entry->usage, 7534 entry->length - 1); 7535 } else 7536 one->support = 1; 7537 break; 7538 } 7539 7540 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7541 ctsio->be_move_done = ctl_config_move_done; 7542 7543 ctl_datamove((union ctl_io *)ctsio); 7544 return(retval); 7545} 7546 7547int 7548ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7549{ 7550 struct ctl_lun *lun; 7551 struct scsi_report_supported_tmf *cdb; 7552 struct scsi_report_supported_tmf_data *data; 7553 int retval; 7554 int alloc_len, total_len; 7555 7556 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7557 7558 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7559 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7560 7561 retval = CTL_RETVAL_COMPLETE; 7562 7563 total_len = sizeof(struct scsi_report_supported_tmf_data); 7564 alloc_len = scsi_4btoul(cdb->length); 7565 7566 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7567 7568 ctsio->kern_sg_entries = 0; 7569 7570 if (total_len < alloc_len) { 7571 ctsio->residual = alloc_len - total_len; 7572 ctsio->kern_data_len = total_len; 7573 ctsio->kern_total_len = total_len; 7574 } else { 7575 ctsio->residual = 0; 7576 ctsio->kern_data_len = alloc_len; 7577 ctsio->kern_total_len = alloc_len; 7578 } 7579 ctsio->kern_data_resid = 0; 7580 ctsio->kern_rel_offset = 0; 7581 7582 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7583 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7584 data->byte2 |= RST_ITNRS; 7585 7586 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7587 ctsio->be_move_done = ctl_config_move_done; 7588 7589 ctl_datamove((union ctl_io *)ctsio); 7590 return (retval); 7591} 7592 7593int 7594ctl_report_timestamp(struct ctl_scsiio *ctsio) 7595{ 7596 struct ctl_lun *lun; 7597 struct scsi_report_timestamp *cdb; 7598 struct scsi_report_timestamp_data *data; 7599 struct timeval tv; 7600 int64_t timestamp; 7601 int retval; 7602 int alloc_len, total_len; 7603 7604 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7605 7606 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7607 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7608 7609 retval = CTL_RETVAL_COMPLETE; 7610 7611 total_len = sizeof(struct scsi_report_timestamp_data); 7612 alloc_len = scsi_4btoul(cdb->length); 7613 7614 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7615 7616 ctsio->kern_sg_entries = 0; 7617 7618 if (total_len < alloc_len) { 7619 ctsio->residual = alloc_len - total_len; 7620 ctsio->kern_data_len = total_len; 7621 ctsio->kern_total_len = total_len; 7622 } else { 7623 ctsio->residual = 0; 7624 ctsio->kern_data_len = alloc_len; 7625 ctsio->kern_total_len = alloc_len; 7626 } 7627 ctsio->kern_data_resid = 0; 7628 ctsio->kern_rel_offset = 0; 7629 7630 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7631 scsi_ulto2b(sizeof(*data) - 2, data->length); 7632 data->origin = RTS_ORIG_OUTSIDE; 7633 getmicrotime(&tv); 7634 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7635 scsi_ulto4b(timestamp >> 16, data->timestamp); 7636 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7637 7638 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7639 ctsio->be_move_done = ctl_config_move_done; 7640 7641 ctl_datamove((union ctl_io *)ctsio); 7642 return (retval); 7643} 7644 7645int 7646ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7647{ 7648 struct scsi_per_res_in *cdb; 7649 int alloc_len, total_len = 0; 7650 /* struct scsi_per_res_in_rsrv in_data; */ 7651 struct ctl_lun *lun; 7652 struct ctl_softc *softc; 7653 7654 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7655 7656 softc = control_softc; 7657 7658 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7659 7660 alloc_len = scsi_2btoul(cdb->length); 7661 7662 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7663 7664retry: 7665 mtx_lock(&lun->lun_lock); 7666 switch (cdb->action) { 7667 case SPRI_RK: /* read keys */ 7668 total_len = sizeof(struct scsi_per_res_in_keys) + 7669 lun->pr_key_count * 7670 sizeof(struct scsi_per_res_key); 7671 break; 7672 case SPRI_RR: /* read reservation */ 7673 if (lun->flags & CTL_LUN_PR_RESERVED) 7674 total_len = sizeof(struct scsi_per_res_in_rsrv); 7675 else 7676 total_len = sizeof(struct scsi_per_res_in_header); 7677 break; 7678 case SPRI_RC: /* report capabilities */ 7679 total_len = sizeof(struct scsi_per_res_cap); 7680 break; 7681 case SPRI_RS: /* read full status */ 7682 total_len = sizeof(struct scsi_per_res_in_header) + 7683 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7684 lun->pr_key_count; 7685 break; 7686 default: 7687 panic("Invalid PR type %x", cdb->action); 7688 } 7689 mtx_unlock(&lun->lun_lock); 7690 7691 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7692 7693 if (total_len < alloc_len) { 7694 ctsio->residual = alloc_len - total_len; 7695 ctsio->kern_data_len = total_len; 7696 ctsio->kern_total_len = total_len; 7697 } else { 7698 ctsio->residual = 0; 7699 ctsio->kern_data_len = alloc_len; 7700 ctsio->kern_total_len = alloc_len; 7701 } 7702 7703 ctsio->kern_data_resid = 0; 7704 ctsio->kern_rel_offset = 0; 7705 ctsio->kern_sg_entries = 0; 7706 7707 mtx_lock(&lun->lun_lock); 7708 switch (cdb->action) { 7709 case SPRI_RK: { // read keys 7710 struct scsi_per_res_in_keys *res_keys; 7711 int i, key_count; 7712 7713 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7714 7715 /* 7716 * We had to drop the lock to allocate our buffer, which 7717 * leaves time for someone to come in with another 7718 * persistent reservation. (That is unlikely, though, 7719 * since this should be the only persistent reservation 7720 * command active right now.) 7721 */ 7722 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7723 (lun->pr_key_count * 7724 sizeof(struct scsi_per_res_key)))){ 7725 mtx_unlock(&lun->lun_lock); 7726 free(ctsio->kern_data_ptr, M_CTL); 7727 printf("%s: reservation length changed, retrying\n", 7728 __func__); 7729 goto retry; 7730 } 7731 7732 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7733 7734 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7735 lun->pr_key_count, res_keys->header.length); 7736 7737 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7738 if (!lun->per_res[i].registered) 7739 continue; 7740 7741 /* 7742 * We used lun->pr_key_count to calculate the 7743 * size to allocate. If it turns out the number of 7744 * initiators with the registered flag set is 7745 * larger than that (i.e. they haven't been kept in 7746 * sync), we've got a problem. 7747 */ 7748 if (key_count >= lun->pr_key_count) { 7749#ifdef NEEDTOPORT 7750 csevent_log(CSC_CTL | CSC_SHELF_SW | 7751 CTL_PR_ERROR, 7752 csevent_LogType_Fault, 7753 csevent_AlertLevel_Yellow, 7754 csevent_FRU_ShelfController, 7755 csevent_FRU_Firmware, 7756 csevent_FRU_Unknown, 7757 "registered keys %d >= key " 7758 "count %d", key_count, 7759 lun->pr_key_count); 7760#endif 7761 key_count++; 7762 continue; 7763 } 7764 memcpy(res_keys->keys[key_count].key, 7765 lun->per_res[i].res_key.key, 7766 ctl_min(sizeof(res_keys->keys[key_count].key), 7767 sizeof(lun->per_res[i].res_key))); 7768 key_count++; 7769 } 7770 break; 7771 } 7772 case SPRI_RR: { // read reservation 7773 struct scsi_per_res_in_rsrv *res; 7774 int tmp_len, header_only; 7775 7776 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7777 7778 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7779 7780 if (lun->flags & CTL_LUN_PR_RESERVED) 7781 { 7782 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7783 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7784 res->header.length); 7785 header_only = 0; 7786 } else { 7787 tmp_len = sizeof(struct scsi_per_res_in_header); 7788 scsi_ulto4b(0, res->header.length); 7789 header_only = 1; 7790 } 7791 7792 /* 7793 * We had to drop the lock to allocate our buffer, which 7794 * leaves time for someone to come in with another 7795 * persistent reservation. (That is unlikely, though, 7796 * since this should be the only persistent reservation 7797 * command active right now.) 7798 */ 7799 if (tmp_len != total_len) { 7800 mtx_unlock(&lun->lun_lock); 7801 free(ctsio->kern_data_ptr, M_CTL); 7802 printf("%s: reservation status changed, retrying\n", 7803 __func__); 7804 goto retry; 7805 } 7806 7807 /* 7808 * No reservation held, so we're done. 7809 */ 7810 if (header_only != 0) 7811 break; 7812 7813 /* 7814 * If the registration is an All Registrants type, the key 7815 * is 0, since it doesn't really matter. 7816 */ 7817 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7818 memcpy(res->data.reservation, 7819 &lun->per_res[lun->pr_res_idx].res_key, 7820 sizeof(struct scsi_per_res_key)); 7821 } 7822 res->data.scopetype = lun->res_type; 7823 break; 7824 } 7825 case SPRI_RC: //report capabilities 7826 { 7827 struct scsi_per_res_cap *res_cap; 7828 uint16_t type_mask; 7829 7830 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7831 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7832 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7833 type_mask = SPRI_TM_WR_EX_AR | 7834 SPRI_TM_EX_AC_RO | 7835 SPRI_TM_WR_EX_RO | 7836 SPRI_TM_EX_AC | 7837 SPRI_TM_WR_EX | 7838 SPRI_TM_EX_AC_AR; 7839 scsi_ulto2b(type_mask, res_cap->type_mask); 7840 break; 7841 } 7842 case SPRI_RS: { // read full status 7843 struct scsi_per_res_in_full *res_status; 7844 struct scsi_per_res_in_full_desc *res_desc; 7845 struct ctl_port *port; 7846 int i, len; 7847 7848 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7849 7850 /* 7851 * We had to drop the lock to allocate our buffer, which 7852 * leaves time for someone to come in with another 7853 * persistent reservation. (That is unlikely, though, 7854 * since this should be the only persistent reservation 7855 * command active right now.) 7856 */ 7857 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7858 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7859 lun->pr_key_count)){ 7860 mtx_unlock(&lun->lun_lock); 7861 free(ctsio->kern_data_ptr, M_CTL); 7862 printf("%s: reservation length changed, retrying\n", 7863 __func__); 7864 goto retry; 7865 } 7866 7867 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7868 7869 res_desc = &res_status->desc[0]; 7870 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7871 if (!lun->per_res[i].registered) 7872 continue; 7873 7874 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7875 sizeof(res_desc->res_key)); 7876 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7877 (lun->pr_res_idx == i || 7878 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7879 res_desc->flags = SPRI_FULL_R_HOLDER; 7880 res_desc->scopetype = lun->res_type; 7881 } 7882 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7883 res_desc->rel_trgt_port_id); 7884 len = 0; 7885 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7886 if (port != NULL) 7887 len = ctl_create_iid(port, 7888 i % CTL_MAX_INIT_PER_PORT, 7889 res_desc->transport_id); 7890 scsi_ulto4b(len, res_desc->additional_length); 7891 res_desc = (struct scsi_per_res_in_full_desc *) 7892 &res_desc->transport_id[len]; 7893 } 7894 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7895 res_status->header.length); 7896 break; 7897 } 7898 default: 7899 /* 7900 * This is a bug, because we just checked for this above, 7901 * and should have returned an error. 7902 */ 7903 panic("Invalid PR type %x", cdb->action); 7904 break; /* NOTREACHED */ 7905 } 7906 mtx_unlock(&lun->lun_lock); 7907 7908 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7909 ctsio->be_move_done = ctl_config_move_done; 7910 7911 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7912 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7913 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7914 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7915 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7916 7917 ctl_datamove((union ctl_io *)ctsio); 7918 7919 return (CTL_RETVAL_COMPLETE); 7920} 7921 7922/* 7923 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7924 * it should return. 7925 */ 7926static int 7927ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7928 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7929 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7930 struct scsi_per_res_out_parms* param) 7931{ 7932 union ctl_ha_msg persis_io; 7933 int retval, i; 7934 int isc_retval; 7935 7936 retval = 0; 7937 7938 mtx_lock(&lun->lun_lock); 7939 if (sa_res_key == 0) { 7940 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7941 /* validate scope and type */ 7942 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7943 SPR_LU_SCOPE) { 7944 mtx_unlock(&lun->lun_lock); 7945 ctl_set_invalid_field(/*ctsio*/ ctsio, 7946 /*sks_valid*/ 1, 7947 /*command*/ 1, 7948 /*field*/ 2, 7949 /*bit_valid*/ 1, 7950 /*bit*/ 4); 7951 ctl_done((union ctl_io *)ctsio); 7952 return (1); 7953 } 7954 7955 if (type>8 || type==2 || type==4 || type==0) { 7956 mtx_unlock(&lun->lun_lock); 7957 ctl_set_invalid_field(/*ctsio*/ ctsio, 7958 /*sks_valid*/ 1, 7959 /*command*/ 1, 7960 /*field*/ 2, 7961 /*bit_valid*/ 1, 7962 /*bit*/ 0); 7963 ctl_done((union ctl_io *)ctsio); 7964 return (1); 7965 } 7966 7967 /* temporarily unregister this nexus */ 7968 lun->per_res[residx].registered = 0; 7969 7970 /* 7971 * Unregister everybody else and build UA for 7972 * them 7973 */ 7974 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7975 if (lun->per_res[i].registered == 0) 7976 continue; 7977 7978 if (!persis_offset 7979 && i <CTL_MAX_INITIATORS) 7980 lun->pending_sense[i].ua_pending |= 7981 CTL_UA_REG_PREEMPT; 7982 else if (persis_offset 7983 && i >= persis_offset) 7984 lun->pending_sense[i-persis_offset 7985 ].ua_pending |= 7986 CTL_UA_REG_PREEMPT; 7987 lun->per_res[i].registered = 0; 7988 memset(&lun->per_res[i].res_key, 0, 7989 sizeof(struct scsi_per_res_key)); 7990 } 7991 lun->per_res[residx].registered = 1; 7992 lun->pr_key_count = 1; 7993 lun->res_type = type; 7994 if (lun->res_type != SPR_TYPE_WR_EX_AR 7995 && lun->res_type != SPR_TYPE_EX_AC_AR) 7996 lun->pr_res_idx = residx; 7997 7998 /* send msg to other side */ 7999 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8000 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8001 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8002 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8003 persis_io.pr.pr_info.res_type = type; 8004 memcpy(persis_io.pr.pr_info.sa_res_key, 8005 param->serv_act_res_key, 8006 sizeof(param->serv_act_res_key)); 8007 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8008 &persis_io, sizeof(persis_io), 0)) > 8009 CTL_HA_STATUS_SUCCESS) { 8010 printf("CTL:Persis Out error returned " 8011 "from ctl_ha_msg_send %d\n", 8012 isc_retval); 8013 } 8014 } else { 8015 /* not all registrants */ 8016 mtx_unlock(&lun->lun_lock); 8017 free(ctsio->kern_data_ptr, M_CTL); 8018 ctl_set_invalid_field(ctsio, 8019 /*sks_valid*/ 1, 8020 /*command*/ 0, 8021 /*field*/ 8, 8022 /*bit_valid*/ 0, 8023 /*bit*/ 0); 8024 ctl_done((union ctl_io *)ctsio); 8025 return (1); 8026 } 8027 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8028 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8029 int found = 0; 8030 8031 if (res_key == sa_res_key) { 8032 /* special case */ 8033 /* 8034 * The spec implies this is not good but doesn't 8035 * say what to do. There are two choices either 8036 * generate a res conflict or check condition 8037 * with illegal field in parameter data. Since 8038 * that is what is done when the sa_res_key is 8039 * zero I'll take that approach since this has 8040 * to do with the sa_res_key. 8041 */ 8042 mtx_unlock(&lun->lun_lock); 8043 free(ctsio->kern_data_ptr, M_CTL); 8044 ctl_set_invalid_field(ctsio, 8045 /*sks_valid*/ 1, 8046 /*command*/ 0, 8047 /*field*/ 8, 8048 /*bit_valid*/ 0, 8049 /*bit*/ 0); 8050 ctl_done((union ctl_io *)ctsio); 8051 return (1); 8052 } 8053 8054 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8055 if (lun->per_res[i].registered 8056 && memcmp(param->serv_act_res_key, 8057 lun->per_res[i].res_key.key, 8058 sizeof(struct scsi_per_res_key)) != 0) 8059 continue; 8060 8061 found = 1; 8062 lun->per_res[i].registered = 0; 8063 memset(&lun->per_res[i].res_key, 0, 8064 sizeof(struct scsi_per_res_key)); 8065 lun->pr_key_count--; 8066 8067 if (!persis_offset 8068 && i < CTL_MAX_INITIATORS) 8069 lun->pending_sense[i].ua_pending |= 8070 CTL_UA_REG_PREEMPT; 8071 else if (persis_offset 8072 && i >= persis_offset) 8073 lun->pending_sense[i-persis_offset].ua_pending|= 8074 CTL_UA_REG_PREEMPT; 8075 } 8076 if (!found) { 8077 mtx_unlock(&lun->lun_lock); 8078 free(ctsio->kern_data_ptr, M_CTL); 8079 ctl_set_reservation_conflict(ctsio); 8080 ctl_done((union ctl_io *)ctsio); 8081 return (CTL_RETVAL_COMPLETE); 8082 } 8083 /* send msg to other side */ 8084 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8085 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8086 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8087 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8088 persis_io.pr.pr_info.res_type = type; 8089 memcpy(persis_io.pr.pr_info.sa_res_key, 8090 param->serv_act_res_key, 8091 sizeof(param->serv_act_res_key)); 8092 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8093 &persis_io, sizeof(persis_io), 0)) > 8094 CTL_HA_STATUS_SUCCESS) { 8095 printf("CTL:Persis Out error returned from " 8096 "ctl_ha_msg_send %d\n", isc_retval); 8097 } 8098 } else { 8099 /* Reserved but not all registrants */ 8100 /* sa_res_key is res holder */ 8101 if (memcmp(param->serv_act_res_key, 8102 lun->per_res[lun->pr_res_idx].res_key.key, 8103 sizeof(struct scsi_per_res_key)) == 0) { 8104 /* validate scope and type */ 8105 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8106 SPR_LU_SCOPE) { 8107 mtx_unlock(&lun->lun_lock); 8108 ctl_set_invalid_field(/*ctsio*/ ctsio, 8109 /*sks_valid*/ 1, 8110 /*command*/ 1, 8111 /*field*/ 2, 8112 /*bit_valid*/ 1, 8113 /*bit*/ 4); 8114 ctl_done((union ctl_io *)ctsio); 8115 return (1); 8116 } 8117 8118 if (type>8 || type==2 || type==4 || type==0) { 8119 mtx_unlock(&lun->lun_lock); 8120 ctl_set_invalid_field(/*ctsio*/ ctsio, 8121 /*sks_valid*/ 1, 8122 /*command*/ 1, 8123 /*field*/ 2, 8124 /*bit_valid*/ 1, 8125 /*bit*/ 0); 8126 ctl_done((union ctl_io *)ctsio); 8127 return (1); 8128 } 8129 8130 /* 8131 * Do the following: 8132 * if sa_res_key != res_key remove all 8133 * registrants w/sa_res_key and generate UA 8134 * for these registrants(Registrations 8135 * Preempted) if it wasn't an exclusive 8136 * reservation generate UA(Reservations 8137 * Preempted) for all other registered nexuses 8138 * if the type has changed. Establish the new 8139 * reservation and holder. If res_key and 8140 * sa_res_key are the same do the above 8141 * except don't unregister the res holder. 8142 */ 8143 8144 /* 8145 * Temporarily unregister so it won't get 8146 * removed or UA generated 8147 */ 8148 lun->per_res[residx].registered = 0; 8149 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8150 if (lun->per_res[i].registered == 0) 8151 continue; 8152 8153 if (memcmp(param->serv_act_res_key, 8154 lun->per_res[i].res_key.key, 8155 sizeof(struct scsi_per_res_key)) == 0) { 8156 lun->per_res[i].registered = 0; 8157 memset(&lun->per_res[i].res_key, 8158 0, 8159 sizeof(struct scsi_per_res_key)); 8160 lun->pr_key_count--; 8161 8162 if (!persis_offset 8163 && i < CTL_MAX_INITIATORS) 8164 lun->pending_sense[i 8165 ].ua_pending |= 8166 CTL_UA_REG_PREEMPT; 8167 else if (persis_offset 8168 && i >= persis_offset) 8169 lun->pending_sense[ 8170 i-persis_offset].ua_pending |= 8171 CTL_UA_REG_PREEMPT; 8172 } else if (type != lun->res_type 8173 && (lun->res_type == SPR_TYPE_WR_EX_RO 8174 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8175 if (!persis_offset 8176 && i < CTL_MAX_INITIATORS) 8177 lun->pending_sense[i 8178 ].ua_pending |= 8179 CTL_UA_RES_RELEASE; 8180 else if (persis_offset 8181 && i >= persis_offset) 8182 lun->pending_sense[ 8183 i-persis_offset 8184 ].ua_pending |= 8185 CTL_UA_RES_RELEASE; 8186 } 8187 } 8188 lun->per_res[residx].registered = 1; 8189 lun->res_type = type; 8190 if (lun->res_type != SPR_TYPE_WR_EX_AR 8191 && lun->res_type != SPR_TYPE_EX_AC_AR) 8192 lun->pr_res_idx = residx; 8193 else 8194 lun->pr_res_idx = 8195 CTL_PR_ALL_REGISTRANTS; 8196 8197 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8198 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8199 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8200 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8201 persis_io.pr.pr_info.res_type = type; 8202 memcpy(persis_io.pr.pr_info.sa_res_key, 8203 param->serv_act_res_key, 8204 sizeof(param->serv_act_res_key)); 8205 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8206 &persis_io, sizeof(persis_io), 0)) > 8207 CTL_HA_STATUS_SUCCESS) { 8208 printf("CTL:Persis Out error returned " 8209 "from ctl_ha_msg_send %d\n", 8210 isc_retval); 8211 } 8212 } else { 8213 /* 8214 * sa_res_key is not the res holder just 8215 * remove registrants 8216 */ 8217 int found=0; 8218 8219 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8220 if (memcmp(param->serv_act_res_key, 8221 lun->per_res[i].res_key.key, 8222 sizeof(struct scsi_per_res_key)) != 0) 8223 continue; 8224 8225 found = 1; 8226 lun->per_res[i].registered = 0; 8227 memset(&lun->per_res[i].res_key, 0, 8228 sizeof(struct scsi_per_res_key)); 8229 lun->pr_key_count--; 8230 8231 if (!persis_offset 8232 && i < CTL_MAX_INITIATORS) 8233 lun->pending_sense[i].ua_pending |= 8234 CTL_UA_REG_PREEMPT; 8235 else if (persis_offset 8236 && i >= persis_offset) 8237 lun->pending_sense[ 8238 i-persis_offset].ua_pending |= 8239 CTL_UA_REG_PREEMPT; 8240 } 8241 8242 if (!found) { 8243 mtx_unlock(&lun->lun_lock); 8244 free(ctsio->kern_data_ptr, M_CTL); 8245 ctl_set_reservation_conflict(ctsio); 8246 ctl_done((union ctl_io *)ctsio); 8247 return (1); 8248 } 8249 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8250 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8251 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8252 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8253 persis_io.pr.pr_info.res_type = type; 8254 memcpy(persis_io.pr.pr_info.sa_res_key, 8255 param->serv_act_res_key, 8256 sizeof(param->serv_act_res_key)); 8257 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8258 &persis_io, sizeof(persis_io), 0)) > 8259 CTL_HA_STATUS_SUCCESS) { 8260 printf("CTL:Persis Out error returned " 8261 "from ctl_ha_msg_send %d\n", 8262 isc_retval); 8263 } 8264 } 8265 } 8266 8267 lun->PRGeneration++; 8268 mtx_unlock(&lun->lun_lock); 8269 8270 return (retval); 8271} 8272 8273static void 8274ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8275{ 8276 int i; 8277 8278 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8279 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8280 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8281 msg->pr.pr_info.sa_res_key, 8282 sizeof(struct scsi_per_res_key)) != 0) { 8283 uint64_t sa_res_key; 8284 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8285 8286 if (sa_res_key == 0) { 8287 /* temporarily unregister this nexus */ 8288 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8289 8290 /* 8291 * Unregister everybody else and build UA for 8292 * them 8293 */ 8294 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8295 if (lun->per_res[i].registered == 0) 8296 continue; 8297 8298 if (!persis_offset 8299 && i < CTL_MAX_INITIATORS) 8300 lun->pending_sense[i].ua_pending |= 8301 CTL_UA_REG_PREEMPT; 8302 else if (persis_offset && i >= persis_offset) 8303 lun->pending_sense[i - 8304 persis_offset].ua_pending |= 8305 CTL_UA_REG_PREEMPT; 8306 lun->per_res[i].registered = 0; 8307 memset(&lun->per_res[i].res_key, 0, 8308 sizeof(struct scsi_per_res_key)); 8309 } 8310 8311 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8312 lun->pr_key_count = 1; 8313 lun->res_type = msg->pr.pr_info.res_type; 8314 if (lun->res_type != SPR_TYPE_WR_EX_AR 8315 && lun->res_type != SPR_TYPE_EX_AC_AR) 8316 lun->pr_res_idx = msg->pr.pr_info.residx; 8317 } else { 8318 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8319 if (memcmp(msg->pr.pr_info.sa_res_key, 8320 lun->per_res[i].res_key.key, 8321 sizeof(struct scsi_per_res_key)) != 0) 8322 continue; 8323 8324 lun->per_res[i].registered = 0; 8325 memset(&lun->per_res[i].res_key, 0, 8326 sizeof(struct scsi_per_res_key)); 8327 lun->pr_key_count--; 8328 8329 if (!persis_offset 8330 && i < persis_offset) 8331 lun->pending_sense[i].ua_pending |= 8332 CTL_UA_REG_PREEMPT; 8333 else if (persis_offset 8334 && i >= persis_offset) 8335 lun->pending_sense[i - 8336 persis_offset].ua_pending |= 8337 CTL_UA_REG_PREEMPT; 8338 } 8339 } 8340 } else { 8341 /* 8342 * Temporarily unregister so it won't get removed 8343 * or UA generated 8344 */ 8345 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8346 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8347 if (lun->per_res[i].registered == 0) 8348 continue; 8349 8350 if (memcmp(msg->pr.pr_info.sa_res_key, 8351 lun->per_res[i].res_key.key, 8352 sizeof(struct scsi_per_res_key)) == 0) { 8353 lun->per_res[i].registered = 0; 8354 memset(&lun->per_res[i].res_key, 0, 8355 sizeof(struct scsi_per_res_key)); 8356 lun->pr_key_count--; 8357 if (!persis_offset 8358 && i < CTL_MAX_INITIATORS) 8359 lun->pending_sense[i].ua_pending |= 8360 CTL_UA_REG_PREEMPT; 8361 else if (persis_offset 8362 && i >= persis_offset) 8363 lun->pending_sense[i - 8364 persis_offset].ua_pending |= 8365 CTL_UA_REG_PREEMPT; 8366 } else if (msg->pr.pr_info.res_type != lun->res_type 8367 && (lun->res_type == SPR_TYPE_WR_EX_RO 8368 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8369 if (!persis_offset 8370 && i < persis_offset) 8371 lun->pending_sense[i 8372 ].ua_pending |= 8373 CTL_UA_RES_RELEASE; 8374 else if (persis_offset 8375 && i >= persis_offset) 8376 lun->pending_sense[i - 8377 persis_offset].ua_pending |= 8378 CTL_UA_RES_RELEASE; 8379 } 8380 } 8381 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8382 lun->res_type = msg->pr.pr_info.res_type; 8383 if (lun->res_type != SPR_TYPE_WR_EX_AR 8384 && lun->res_type != SPR_TYPE_EX_AC_AR) 8385 lun->pr_res_idx = msg->pr.pr_info.residx; 8386 else 8387 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8388 } 8389 lun->PRGeneration++; 8390 8391} 8392 8393 8394int 8395ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8396{ 8397 int retval; 8398 int isc_retval; 8399 u_int32_t param_len; 8400 struct scsi_per_res_out *cdb; 8401 struct ctl_lun *lun; 8402 struct scsi_per_res_out_parms* param; 8403 struct ctl_softc *softc; 8404 uint32_t residx; 8405 uint64_t res_key, sa_res_key; 8406 uint8_t type; 8407 union ctl_ha_msg persis_io; 8408 int i; 8409 8410 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8411 8412 retval = CTL_RETVAL_COMPLETE; 8413 8414 softc = control_softc; 8415 8416 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8417 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8418 8419 /* 8420 * We only support whole-LUN scope. The scope & type are ignored for 8421 * register, register and ignore existing key and clear. 8422 * We sometimes ignore scope and type on preempts too!! 8423 * Verify reservation type here as well. 8424 */ 8425 type = cdb->scope_type & SPR_TYPE_MASK; 8426 if ((cdb->action == SPRO_RESERVE) 8427 || (cdb->action == SPRO_RELEASE)) { 8428 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8429 ctl_set_invalid_field(/*ctsio*/ ctsio, 8430 /*sks_valid*/ 1, 8431 /*command*/ 1, 8432 /*field*/ 2, 8433 /*bit_valid*/ 1, 8434 /*bit*/ 4); 8435 ctl_done((union ctl_io *)ctsio); 8436 return (CTL_RETVAL_COMPLETE); 8437 } 8438 8439 if (type>8 || type==2 || type==4 || type==0) { 8440 ctl_set_invalid_field(/*ctsio*/ ctsio, 8441 /*sks_valid*/ 1, 8442 /*command*/ 1, 8443 /*field*/ 2, 8444 /*bit_valid*/ 1, 8445 /*bit*/ 0); 8446 ctl_done((union ctl_io *)ctsio); 8447 return (CTL_RETVAL_COMPLETE); 8448 } 8449 } 8450 8451 param_len = scsi_4btoul(cdb->length); 8452 8453 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8454 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8455 ctsio->kern_data_len = param_len; 8456 ctsio->kern_total_len = param_len; 8457 ctsio->kern_data_resid = 0; 8458 ctsio->kern_rel_offset = 0; 8459 ctsio->kern_sg_entries = 0; 8460 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8461 ctsio->be_move_done = ctl_config_move_done; 8462 ctl_datamove((union ctl_io *)ctsio); 8463 8464 return (CTL_RETVAL_COMPLETE); 8465 } 8466 8467 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8468 8469 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8470 res_key = scsi_8btou64(param->res_key.key); 8471 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8472 8473 /* 8474 * Validate the reservation key here except for SPRO_REG_IGNO 8475 * This must be done for all other service actions 8476 */ 8477 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8478 mtx_lock(&lun->lun_lock); 8479 if (lun->per_res[residx].registered) { 8480 if (memcmp(param->res_key.key, 8481 lun->per_res[residx].res_key.key, 8482 ctl_min(sizeof(param->res_key), 8483 sizeof(lun->per_res[residx].res_key))) != 0) { 8484 /* 8485 * The current key passed in doesn't match 8486 * the one the initiator previously 8487 * registered. 8488 */ 8489 mtx_unlock(&lun->lun_lock); 8490 free(ctsio->kern_data_ptr, M_CTL); 8491 ctl_set_reservation_conflict(ctsio); 8492 ctl_done((union ctl_io *)ctsio); 8493 return (CTL_RETVAL_COMPLETE); 8494 } 8495 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8496 /* 8497 * We are not registered 8498 */ 8499 mtx_unlock(&lun->lun_lock); 8500 free(ctsio->kern_data_ptr, M_CTL); 8501 ctl_set_reservation_conflict(ctsio); 8502 ctl_done((union ctl_io *)ctsio); 8503 return (CTL_RETVAL_COMPLETE); 8504 } else if (res_key != 0) { 8505 /* 8506 * We are not registered and trying to register but 8507 * the register key isn't zero. 8508 */ 8509 mtx_unlock(&lun->lun_lock); 8510 free(ctsio->kern_data_ptr, M_CTL); 8511 ctl_set_reservation_conflict(ctsio); 8512 ctl_done((union ctl_io *)ctsio); 8513 return (CTL_RETVAL_COMPLETE); 8514 } 8515 mtx_unlock(&lun->lun_lock); 8516 } 8517 8518 switch (cdb->action & SPRO_ACTION_MASK) { 8519 case SPRO_REGISTER: 8520 case SPRO_REG_IGNO: { 8521 8522#if 0 8523 printf("Registration received\n"); 8524#endif 8525 8526 /* 8527 * We don't support any of these options, as we report in 8528 * the read capabilities request (see 8529 * ctl_persistent_reserve_in(), above). 8530 */ 8531 if ((param->flags & SPR_SPEC_I_PT) 8532 || (param->flags & SPR_ALL_TG_PT) 8533 || (param->flags & SPR_APTPL)) { 8534 int bit_ptr; 8535 8536 if (param->flags & SPR_APTPL) 8537 bit_ptr = 0; 8538 else if (param->flags & SPR_ALL_TG_PT) 8539 bit_ptr = 2; 8540 else /* SPR_SPEC_I_PT */ 8541 bit_ptr = 3; 8542 8543 free(ctsio->kern_data_ptr, M_CTL); 8544 ctl_set_invalid_field(ctsio, 8545 /*sks_valid*/ 1, 8546 /*command*/ 0, 8547 /*field*/ 20, 8548 /*bit_valid*/ 1, 8549 /*bit*/ bit_ptr); 8550 ctl_done((union ctl_io *)ctsio); 8551 return (CTL_RETVAL_COMPLETE); 8552 } 8553 8554 mtx_lock(&lun->lun_lock); 8555 8556 /* 8557 * The initiator wants to clear the 8558 * key/unregister. 8559 */ 8560 if (sa_res_key == 0) { 8561 if ((res_key == 0 8562 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8563 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8564 && !lun->per_res[residx].registered)) { 8565 mtx_unlock(&lun->lun_lock); 8566 goto done; 8567 } 8568 8569 lun->per_res[residx].registered = 0; 8570 memset(&lun->per_res[residx].res_key, 8571 0, sizeof(lun->per_res[residx].res_key)); 8572 lun->pr_key_count--; 8573 8574 if (residx == lun->pr_res_idx) { 8575 lun->flags &= ~CTL_LUN_PR_RESERVED; 8576 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8577 8578 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8579 || lun->res_type == SPR_TYPE_EX_AC_RO) 8580 && lun->pr_key_count) { 8581 /* 8582 * If the reservation is a registrants 8583 * only type we need to generate a UA 8584 * for other registered inits. The 8585 * sense code should be RESERVATIONS 8586 * RELEASED 8587 */ 8588 8589 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8590 if (lun->per_res[ 8591 i+persis_offset].registered 8592 == 0) 8593 continue; 8594 lun->pending_sense[i 8595 ].ua_pending |= 8596 CTL_UA_RES_RELEASE; 8597 } 8598 } 8599 lun->res_type = 0; 8600 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8601 if (lun->pr_key_count==0) { 8602 lun->flags &= ~CTL_LUN_PR_RESERVED; 8603 lun->res_type = 0; 8604 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8605 } 8606 } 8607 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8608 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8609 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8610 persis_io.pr.pr_info.residx = residx; 8611 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8612 &persis_io, sizeof(persis_io), 0 )) > 8613 CTL_HA_STATUS_SUCCESS) { 8614 printf("CTL:Persis Out error returned from " 8615 "ctl_ha_msg_send %d\n", isc_retval); 8616 } 8617 } else /* sa_res_key != 0 */ { 8618 8619 /* 8620 * If we aren't registered currently then increment 8621 * the key count and set the registered flag. 8622 */ 8623 if (!lun->per_res[residx].registered) { 8624 lun->pr_key_count++; 8625 lun->per_res[residx].registered = 1; 8626 } 8627 8628 memcpy(&lun->per_res[residx].res_key, 8629 param->serv_act_res_key, 8630 ctl_min(sizeof(param->serv_act_res_key), 8631 sizeof(lun->per_res[residx].res_key))); 8632 8633 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8634 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8635 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8636 persis_io.pr.pr_info.residx = residx; 8637 memcpy(persis_io.pr.pr_info.sa_res_key, 8638 param->serv_act_res_key, 8639 sizeof(param->serv_act_res_key)); 8640 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8641 &persis_io, sizeof(persis_io), 0)) > 8642 CTL_HA_STATUS_SUCCESS) { 8643 printf("CTL:Persis Out error returned from " 8644 "ctl_ha_msg_send %d\n", isc_retval); 8645 } 8646 } 8647 lun->PRGeneration++; 8648 mtx_unlock(&lun->lun_lock); 8649 8650 break; 8651 } 8652 case SPRO_RESERVE: 8653#if 0 8654 printf("Reserve executed type %d\n", type); 8655#endif 8656 mtx_lock(&lun->lun_lock); 8657 if (lun->flags & CTL_LUN_PR_RESERVED) { 8658 /* 8659 * if this isn't the reservation holder and it's 8660 * not a "all registrants" type or if the type is 8661 * different then we have a conflict 8662 */ 8663 if ((lun->pr_res_idx != residx 8664 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8665 || lun->res_type != type) { 8666 mtx_unlock(&lun->lun_lock); 8667 free(ctsio->kern_data_ptr, M_CTL); 8668 ctl_set_reservation_conflict(ctsio); 8669 ctl_done((union ctl_io *)ctsio); 8670 return (CTL_RETVAL_COMPLETE); 8671 } 8672 mtx_unlock(&lun->lun_lock); 8673 } else /* create a reservation */ { 8674 /* 8675 * If it's not an "all registrants" type record 8676 * reservation holder 8677 */ 8678 if (type != SPR_TYPE_WR_EX_AR 8679 && type != SPR_TYPE_EX_AC_AR) 8680 lun->pr_res_idx = residx; /* Res holder */ 8681 else 8682 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8683 8684 lun->flags |= CTL_LUN_PR_RESERVED; 8685 lun->res_type = type; 8686 8687 mtx_unlock(&lun->lun_lock); 8688 8689 /* send msg to other side */ 8690 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8691 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8692 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8693 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8694 persis_io.pr.pr_info.res_type = type; 8695 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8696 &persis_io, sizeof(persis_io), 0)) > 8697 CTL_HA_STATUS_SUCCESS) { 8698 printf("CTL:Persis Out error returned from " 8699 "ctl_ha_msg_send %d\n", isc_retval); 8700 } 8701 } 8702 break; 8703 8704 case SPRO_RELEASE: 8705 mtx_lock(&lun->lun_lock); 8706 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8707 /* No reservation exists return good status */ 8708 mtx_unlock(&lun->lun_lock); 8709 goto done; 8710 } 8711 /* 8712 * Is this nexus a reservation holder? 8713 */ 8714 if (lun->pr_res_idx != residx 8715 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8716 /* 8717 * not a res holder return good status but 8718 * do nothing 8719 */ 8720 mtx_unlock(&lun->lun_lock); 8721 goto done; 8722 } 8723 8724 if (lun->res_type != type) { 8725 mtx_unlock(&lun->lun_lock); 8726 free(ctsio->kern_data_ptr, M_CTL); 8727 ctl_set_illegal_pr_release(ctsio); 8728 ctl_done((union ctl_io *)ctsio); 8729 return (CTL_RETVAL_COMPLETE); 8730 } 8731 8732 /* okay to release */ 8733 lun->flags &= ~CTL_LUN_PR_RESERVED; 8734 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8735 lun->res_type = 0; 8736 8737 /* 8738 * if this isn't an exclusive access 8739 * res generate UA for all other 8740 * registrants. 8741 */ 8742 if (type != SPR_TYPE_EX_AC 8743 && type != SPR_TYPE_WR_EX) { 8744 /* 8745 * temporarily unregister so we don't generate UA 8746 */ 8747 lun->per_res[residx].registered = 0; 8748 8749 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8750 if (lun->per_res[i+persis_offset].registered 8751 == 0) 8752 continue; 8753 lun->pending_sense[i].ua_pending |= 8754 CTL_UA_RES_RELEASE; 8755 } 8756 8757 lun->per_res[residx].registered = 1; 8758 } 8759 mtx_unlock(&lun->lun_lock); 8760 /* Send msg to other side */ 8761 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8762 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8763 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8764 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8765 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8766 printf("CTL:Persis Out error returned from " 8767 "ctl_ha_msg_send %d\n", isc_retval); 8768 } 8769 break; 8770 8771 case SPRO_CLEAR: 8772 /* send msg to other side */ 8773 8774 mtx_lock(&lun->lun_lock); 8775 lun->flags &= ~CTL_LUN_PR_RESERVED; 8776 lun->res_type = 0; 8777 lun->pr_key_count = 0; 8778 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8779 8780 8781 memset(&lun->per_res[residx].res_key, 8782 0, sizeof(lun->per_res[residx].res_key)); 8783 lun->per_res[residx].registered = 0; 8784 8785 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8786 if (lun->per_res[i].registered) { 8787 if (!persis_offset && i < CTL_MAX_INITIATORS) 8788 lun->pending_sense[i].ua_pending |= 8789 CTL_UA_RES_PREEMPT; 8790 else if (persis_offset && i >= persis_offset) 8791 lun->pending_sense[i-persis_offset 8792 ].ua_pending |= CTL_UA_RES_PREEMPT; 8793 8794 memset(&lun->per_res[i].res_key, 8795 0, sizeof(struct scsi_per_res_key)); 8796 lun->per_res[i].registered = 0; 8797 } 8798 lun->PRGeneration++; 8799 mtx_unlock(&lun->lun_lock); 8800 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8801 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8802 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8803 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8804 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8805 printf("CTL:Persis Out error returned from " 8806 "ctl_ha_msg_send %d\n", isc_retval); 8807 } 8808 break; 8809 8810 case SPRO_PREEMPT: { 8811 int nretval; 8812 8813 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8814 residx, ctsio, cdb, param); 8815 if (nretval != 0) 8816 return (CTL_RETVAL_COMPLETE); 8817 break; 8818 } 8819 default: 8820 panic("Invalid PR type %x", cdb->action); 8821 } 8822 8823done: 8824 free(ctsio->kern_data_ptr, M_CTL); 8825 ctl_set_success(ctsio); 8826 ctl_done((union ctl_io *)ctsio); 8827 8828 return (retval); 8829} 8830 8831/* 8832 * This routine is for handling a message from the other SC pertaining to 8833 * persistent reserve out. All the error checking will have been done 8834 * so only perorming the action need be done here to keep the two 8835 * in sync. 8836 */ 8837static void 8838ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8839{ 8840 struct ctl_lun *lun; 8841 struct ctl_softc *softc; 8842 int i; 8843 uint32_t targ_lun; 8844 8845 softc = control_softc; 8846 8847 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8848 lun = softc->ctl_luns[targ_lun]; 8849 mtx_lock(&lun->lun_lock); 8850 switch(msg->pr.pr_info.action) { 8851 case CTL_PR_REG_KEY: 8852 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8853 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8854 lun->pr_key_count++; 8855 } 8856 lun->PRGeneration++; 8857 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8858 msg->pr.pr_info.sa_res_key, 8859 sizeof(struct scsi_per_res_key)); 8860 break; 8861 8862 case CTL_PR_UNREG_KEY: 8863 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8864 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8865 0, sizeof(struct scsi_per_res_key)); 8866 lun->pr_key_count--; 8867 8868 /* XXX Need to see if the reservation has been released */ 8869 /* if so do we need to generate UA? */ 8870 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8871 lun->flags &= ~CTL_LUN_PR_RESERVED; 8872 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8873 8874 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8875 || lun->res_type == SPR_TYPE_EX_AC_RO) 8876 && lun->pr_key_count) { 8877 /* 8878 * If the reservation is a registrants 8879 * only type we need to generate a UA 8880 * for other registered inits. The 8881 * sense code should be RESERVATIONS 8882 * RELEASED 8883 */ 8884 8885 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8886 if (lun->per_res[i+ 8887 persis_offset].registered == 0) 8888 continue; 8889 8890 lun->pending_sense[i 8891 ].ua_pending |= 8892 CTL_UA_RES_RELEASE; 8893 } 8894 } 8895 lun->res_type = 0; 8896 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8897 if (lun->pr_key_count==0) { 8898 lun->flags &= ~CTL_LUN_PR_RESERVED; 8899 lun->res_type = 0; 8900 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8901 } 8902 } 8903 lun->PRGeneration++; 8904 break; 8905 8906 case CTL_PR_RESERVE: 8907 lun->flags |= CTL_LUN_PR_RESERVED; 8908 lun->res_type = msg->pr.pr_info.res_type; 8909 lun->pr_res_idx = msg->pr.pr_info.residx; 8910 8911 break; 8912 8913 case CTL_PR_RELEASE: 8914 /* 8915 * if this isn't an exclusive access res generate UA for all 8916 * other registrants. 8917 */ 8918 if (lun->res_type != SPR_TYPE_EX_AC 8919 && lun->res_type != SPR_TYPE_WR_EX) { 8920 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8921 if (lun->per_res[i+persis_offset].registered) 8922 lun->pending_sense[i].ua_pending |= 8923 CTL_UA_RES_RELEASE; 8924 } 8925 8926 lun->flags &= ~CTL_LUN_PR_RESERVED; 8927 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8928 lun->res_type = 0; 8929 break; 8930 8931 case CTL_PR_PREEMPT: 8932 ctl_pro_preempt_other(lun, msg); 8933 break; 8934 case CTL_PR_CLEAR: 8935 lun->flags &= ~CTL_LUN_PR_RESERVED; 8936 lun->res_type = 0; 8937 lun->pr_key_count = 0; 8938 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8939 8940 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8941 if (lun->per_res[i].registered == 0) 8942 continue; 8943 if (!persis_offset 8944 && i < CTL_MAX_INITIATORS) 8945 lun->pending_sense[i].ua_pending |= 8946 CTL_UA_RES_PREEMPT; 8947 else if (persis_offset 8948 && i >= persis_offset) 8949 lun->pending_sense[i-persis_offset].ua_pending|= 8950 CTL_UA_RES_PREEMPT; 8951 memset(&lun->per_res[i].res_key, 0, 8952 sizeof(struct scsi_per_res_key)); 8953 lun->per_res[i].registered = 0; 8954 } 8955 lun->PRGeneration++; 8956 break; 8957 } 8958 8959 mtx_unlock(&lun->lun_lock); 8960} 8961 8962int 8963ctl_read_write(struct ctl_scsiio *ctsio) 8964{ 8965 struct ctl_lun *lun; 8966 struct ctl_lba_len_flags *lbalen; 8967 uint64_t lba; 8968 uint32_t num_blocks; 8969 int fua, dpo; 8970 int retval; 8971 int isread; 8972 8973 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8974 8975 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8976 8977 fua = 0; 8978 dpo = 0; 8979 8980 retval = CTL_RETVAL_COMPLETE; 8981 8982 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8983 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8984 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8985 uint32_t residx; 8986 8987 /* 8988 * XXX KDM need a lock here. 8989 */ 8990 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8991 if ((lun->res_type == SPR_TYPE_EX_AC 8992 && residx != lun->pr_res_idx) 8993 || ((lun->res_type == SPR_TYPE_EX_AC_RO 8994 || lun->res_type == SPR_TYPE_EX_AC_AR) 8995 && !lun->per_res[residx].registered)) { 8996 ctl_set_reservation_conflict(ctsio); 8997 ctl_done((union ctl_io *)ctsio); 8998 return (CTL_RETVAL_COMPLETE); 8999 } 9000 } 9001 9002 switch (ctsio->cdb[0]) { 9003 case READ_6: 9004 case WRITE_6: { 9005 struct scsi_rw_6 *cdb; 9006 9007 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9008 9009 lba = scsi_3btoul(cdb->addr); 9010 /* only 5 bits are valid in the most significant address byte */ 9011 lba &= 0x1fffff; 9012 num_blocks = cdb->length; 9013 /* 9014 * This is correct according to SBC-2. 9015 */ 9016 if (num_blocks == 0) 9017 num_blocks = 256; 9018 break; 9019 } 9020 case READ_10: 9021 case WRITE_10: { 9022 struct scsi_rw_10 *cdb; 9023 9024 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9025 9026 if (cdb->byte2 & SRW10_FUA) 9027 fua = 1; 9028 if (cdb->byte2 & SRW10_DPO) 9029 dpo = 1; 9030 9031 lba = scsi_4btoul(cdb->addr); 9032 num_blocks = scsi_2btoul(cdb->length); 9033 break; 9034 } 9035 case WRITE_VERIFY_10: { 9036 struct scsi_write_verify_10 *cdb; 9037 9038 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9039 9040 /* 9041 * XXX KDM we should do actual write verify support at some 9042 * point. This is obviously fake, we're just translating 9043 * things to a write. So we don't even bother checking the 9044 * BYTCHK field, since we don't do any verification. If 9045 * the user asks for it, we'll just pretend we did it. 9046 */ 9047 if (cdb->byte2 & SWV_DPO) 9048 dpo = 1; 9049 9050 lba = scsi_4btoul(cdb->addr); 9051 num_blocks = scsi_2btoul(cdb->length); 9052 break; 9053 } 9054 case READ_12: 9055 case WRITE_12: { 9056 struct scsi_rw_12 *cdb; 9057 9058 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9059 9060 if (cdb->byte2 & SRW12_FUA) 9061 fua = 1; 9062 if (cdb->byte2 & SRW12_DPO) 9063 dpo = 1; 9064 lba = scsi_4btoul(cdb->addr); 9065 num_blocks = scsi_4btoul(cdb->length); 9066 break; 9067 } 9068 case WRITE_VERIFY_12: { 9069 struct scsi_write_verify_12 *cdb; 9070 9071 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9072 9073 if (cdb->byte2 & SWV_DPO) 9074 dpo = 1; 9075 9076 lba = scsi_4btoul(cdb->addr); 9077 num_blocks = scsi_4btoul(cdb->length); 9078 9079 break; 9080 } 9081 case READ_16: 9082 case WRITE_16: { 9083 struct scsi_rw_16 *cdb; 9084 9085 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9086 9087 if (cdb->byte2 & SRW12_FUA) 9088 fua = 1; 9089 if (cdb->byte2 & SRW12_DPO) 9090 dpo = 1; 9091 9092 lba = scsi_8btou64(cdb->addr); 9093 num_blocks = scsi_4btoul(cdb->length); 9094 break; 9095 } 9096 case WRITE_VERIFY_16: { 9097 struct scsi_write_verify_16 *cdb; 9098 9099 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9100 9101 if (cdb->byte2 & SWV_DPO) 9102 dpo = 1; 9103 9104 lba = scsi_8btou64(cdb->addr); 9105 num_blocks = scsi_4btoul(cdb->length); 9106 break; 9107 } 9108 default: 9109 /* 9110 * We got a command we don't support. This shouldn't 9111 * happen, commands should be filtered out above us. 9112 */ 9113 ctl_set_invalid_opcode(ctsio); 9114 ctl_done((union ctl_io *)ctsio); 9115 9116 return (CTL_RETVAL_COMPLETE); 9117 break; /* NOTREACHED */ 9118 } 9119 9120 /* 9121 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9122 * interesting for us, but if RAIDCore is in write-back mode, 9123 * getting it to do write-through for a particular transaction may 9124 * not be possible. 9125 */ 9126 9127 /* 9128 * The first check is to make sure we're in bounds, the second 9129 * check is to catch wrap-around problems. If the lba + num blocks 9130 * is less than the lba, then we've wrapped around and the block 9131 * range is invalid anyway. 9132 */ 9133 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9134 || ((lba + num_blocks) < lba)) { 9135 ctl_set_lba_out_of_range(ctsio); 9136 ctl_done((union ctl_io *)ctsio); 9137 return (CTL_RETVAL_COMPLETE); 9138 } 9139 9140 /* 9141 * According to SBC-3, a transfer length of 0 is not an error. 9142 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9143 * translates to 256 blocks for those commands. 9144 */ 9145 if (num_blocks == 0) { 9146 ctl_set_success(ctsio); 9147 ctl_done((union ctl_io *)ctsio); 9148 return (CTL_RETVAL_COMPLETE); 9149 } 9150 9151 lbalen = (struct ctl_lba_len_flags *) 9152 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9153 lbalen->lba = lba; 9154 lbalen->len = num_blocks; 9155 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 9156 9157 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9158 ctsio->kern_rel_offset = 0; 9159 9160 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9161 9162 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9163 9164 return (retval); 9165} 9166 9167static int 9168ctl_cnw_cont(union ctl_io *io) 9169{ 9170 struct ctl_scsiio *ctsio; 9171 struct ctl_lun *lun; 9172 struct ctl_lba_len_flags *lbalen; 9173 int retval; 9174 9175 ctsio = &io->scsiio; 9176 ctsio->io_hdr.status = CTL_STATUS_NONE; 9177 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9178 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9179 lbalen = (struct ctl_lba_len_flags *) 9180 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9181 lbalen->flags = CTL_LLF_WRITE; 9182 9183 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9184 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9185 return (retval); 9186} 9187 9188int 9189ctl_cnw(struct ctl_scsiio *ctsio) 9190{ 9191 struct ctl_lun *lun; 9192 struct ctl_lba_len_flags *lbalen; 9193 uint64_t lba; 9194 uint32_t num_blocks; 9195 int fua, dpo; 9196 int retval; 9197 9198 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9199 9200 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9201 9202 fua = 0; 9203 dpo = 0; 9204 9205 retval = CTL_RETVAL_COMPLETE; 9206 9207 switch (ctsio->cdb[0]) { 9208 case COMPARE_AND_WRITE: { 9209 struct scsi_compare_and_write *cdb; 9210 9211 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9212 9213 if (cdb->byte2 & SRW10_FUA) 9214 fua = 1; 9215 if (cdb->byte2 & SRW10_DPO) 9216 dpo = 1; 9217 lba = scsi_8btou64(cdb->addr); 9218 num_blocks = cdb->length; 9219 break; 9220 } 9221 default: 9222 /* 9223 * We got a command we don't support. This shouldn't 9224 * happen, commands should be filtered out above us. 9225 */ 9226 ctl_set_invalid_opcode(ctsio); 9227 ctl_done((union ctl_io *)ctsio); 9228 9229 return (CTL_RETVAL_COMPLETE); 9230 break; /* NOTREACHED */ 9231 } 9232 9233 /* 9234 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9235 * interesting for us, but if RAIDCore is in write-back mode, 9236 * getting it to do write-through for a particular transaction may 9237 * not be possible. 9238 */ 9239 9240 /* 9241 * The first check is to make sure we're in bounds, the second 9242 * check is to catch wrap-around problems. If the lba + num blocks 9243 * is less than the lba, then we've wrapped around and the block 9244 * range is invalid anyway. 9245 */ 9246 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9247 || ((lba + num_blocks) < lba)) { 9248 ctl_set_lba_out_of_range(ctsio); 9249 ctl_done((union ctl_io *)ctsio); 9250 return (CTL_RETVAL_COMPLETE); 9251 } 9252 9253 /* 9254 * According to SBC-3, a transfer length of 0 is not an error. 9255 */ 9256 if (num_blocks == 0) { 9257 ctl_set_success(ctsio); 9258 ctl_done((union ctl_io *)ctsio); 9259 return (CTL_RETVAL_COMPLETE); 9260 } 9261 9262 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9263 ctsio->kern_rel_offset = 0; 9264 9265 /* 9266 * Set the IO_CONT flag, so that if this I/O gets passed to 9267 * ctl_data_submit_done(), it'll get passed back to 9268 * ctl_ctl_cnw_cont() for further processing. 9269 */ 9270 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9271 ctsio->io_cont = ctl_cnw_cont; 9272 9273 lbalen = (struct ctl_lba_len_flags *) 9274 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9275 lbalen->lba = lba; 9276 lbalen->len = num_blocks; 9277 lbalen->flags = CTL_LLF_COMPARE; 9278 9279 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9280 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9281 return (retval); 9282} 9283 9284int 9285ctl_verify(struct ctl_scsiio *ctsio) 9286{ 9287 struct ctl_lun *lun; 9288 struct ctl_lba_len_flags *lbalen; 9289 uint64_t lba; 9290 uint32_t num_blocks; 9291 int bytchk, dpo; 9292 int retval; 9293 9294 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9295 9296 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9297 9298 bytchk = 0; 9299 dpo = 0; 9300 retval = CTL_RETVAL_COMPLETE; 9301 9302 switch (ctsio->cdb[0]) { 9303 case VERIFY_10: { 9304 struct scsi_verify_10 *cdb; 9305 9306 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9307 if (cdb->byte2 & SVFY_BYTCHK) 9308 bytchk = 1; 9309 if (cdb->byte2 & SVFY_DPO) 9310 dpo = 1; 9311 lba = scsi_4btoul(cdb->addr); 9312 num_blocks = scsi_2btoul(cdb->length); 9313 break; 9314 } 9315 case VERIFY_12: { 9316 struct scsi_verify_12 *cdb; 9317 9318 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9319 if (cdb->byte2 & SVFY_BYTCHK) 9320 bytchk = 1; 9321 if (cdb->byte2 & SVFY_DPO) 9322 dpo = 1; 9323 lba = scsi_4btoul(cdb->addr); 9324 num_blocks = scsi_4btoul(cdb->length); 9325 break; 9326 } 9327 case VERIFY_16: { 9328 struct scsi_rw_16 *cdb; 9329 9330 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9331 if (cdb->byte2 & SVFY_BYTCHK) 9332 bytchk = 1; 9333 if (cdb->byte2 & SVFY_DPO) 9334 dpo = 1; 9335 lba = scsi_8btou64(cdb->addr); 9336 num_blocks = scsi_4btoul(cdb->length); 9337 break; 9338 } 9339 default: 9340 /* 9341 * We got a command we don't support. This shouldn't 9342 * happen, commands should be filtered out above us. 9343 */ 9344 ctl_set_invalid_opcode(ctsio); 9345 ctl_done((union ctl_io *)ctsio); 9346 return (CTL_RETVAL_COMPLETE); 9347 } 9348 9349 /* 9350 * The first check is to make sure we're in bounds, the second 9351 * check is to catch wrap-around problems. If the lba + num blocks 9352 * is less than the lba, then we've wrapped around and the block 9353 * range is invalid anyway. 9354 */ 9355 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9356 || ((lba + num_blocks) < lba)) { 9357 ctl_set_lba_out_of_range(ctsio); 9358 ctl_done((union ctl_io *)ctsio); 9359 return (CTL_RETVAL_COMPLETE); 9360 } 9361 9362 /* 9363 * According to SBC-3, a transfer length of 0 is not an error. 9364 */ 9365 if (num_blocks == 0) { 9366 ctl_set_success(ctsio); 9367 ctl_done((union ctl_io *)ctsio); 9368 return (CTL_RETVAL_COMPLETE); 9369 } 9370 9371 lbalen = (struct ctl_lba_len_flags *) 9372 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9373 lbalen->lba = lba; 9374 lbalen->len = num_blocks; 9375 if (bytchk) { 9376 lbalen->flags = CTL_LLF_COMPARE; 9377 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9378 } else { 9379 lbalen->flags = CTL_LLF_VERIFY; 9380 ctsio->kern_total_len = 0; 9381 } 9382 ctsio->kern_rel_offset = 0; 9383 9384 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9385 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9386 return (retval); 9387} 9388 9389int 9390ctl_report_luns(struct ctl_scsiio *ctsio) 9391{ 9392 struct scsi_report_luns *cdb; 9393 struct scsi_report_luns_data *lun_data; 9394 struct ctl_lun *lun, *request_lun; 9395 int num_luns, retval; 9396 uint32_t alloc_len, lun_datalen; 9397 int num_filled, well_known; 9398 uint32_t initidx, targ_lun_id, lun_id; 9399 9400 retval = CTL_RETVAL_COMPLETE; 9401 well_known = 0; 9402 9403 cdb = (struct scsi_report_luns *)ctsio->cdb; 9404 9405 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9406 9407 mtx_lock(&control_softc->ctl_lock); 9408 num_luns = control_softc->num_luns; 9409 mtx_unlock(&control_softc->ctl_lock); 9410 9411 switch (cdb->select_report) { 9412 case RPL_REPORT_DEFAULT: 9413 case RPL_REPORT_ALL: 9414 break; 9415 case RPL_REPORT_WELLKNOWN: 9416 well_known = 1; 9417 num_luns = 0; 9418 break; 9419 default: 9420 ctl_set_invalid_field(ctsio, 9421 /*sks_valid*/ 1, 9422 /*command*/ 1, 9423 /*field*/ 2, 9424 /*bit_valid*/ 0, 9425 /*bit*/ 0); 9426 ctl_done((union ctl_io *)ctsio); 9427 return (retval); 9428 break; /* NOTREACHED */ 9429 } 9430 9431 alloc_len = scsi_4btoul(cdb->length); 9432 /* 9433 * The initiator has to allocate at least 16 bytes for this request, 9434 * so he can at least get the header and the first LUN. Otherwise 9435 * we reject the request (per SPC-3 rev 14, section 6.21). 9436 */ 9437 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9438 sizeof(struct scsi_report_luns_lundata))) { 9439 ctl_set_invalid_field(ctsio, 9440 /*sks_valid*/ 1, 9441 /*command*/ 1, 9442 /*field*/ 6, 9443 /*bit_valid*/ 0, 9444 /*bit*/ 0); 9445 ctl_done((union ctl_io *)ctsio); 9446 return (retval); 9447 } 9448 9449 request_lun = (struct ctl_lun *) 9450 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9451 9452 lun_datalen = sizeof(*lun_data) + 9453 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9454 9455 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9456 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9457 ctsio->kern_sg_entries = 0; 9458 9459 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9460 9461 mtx_lock(&control_softc->ctl_lock); 9462 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9463 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9464 if (lun_id >= CTL_MAX_LUNS) 9465 continue; 9466 lun = control_softc->ctl_luns[lun_id]; 9467 if (lun == NULL) 9468 continue; 9469 9470 if (targ_lun_id <= 0xff) { 9471 /* 9472 * Peripheral addressing method, bus number 0. 9473 */ 9474 lun_data->luns[num_filled].lundata[0] = 9475 RPL_LUNDATA_ATYP_PERIPH; 9476 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9477 num_filled++; 9478 } else if (targ_lun_id <= 0x3fff) { 9479 /* 9480 * Flat addressing method. 9481 */ 9482 lun_data->luns[num_filled].lundata[0] = 9483 RPL_LUNDATA_ATYP_FLAT | 9484 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9485#ifdef OLDCTLHEADERS 9486 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9487 (targ_lun_id & SRLD_BUS_LUN_MASK); 9488#endif 9489 lun_data->luns[num_filled].lundata[1] = 9490#ifdef OLDCTLHEADERS 9491 targ_lun_id >> SRLD_BUS_LUN_BITS; 9492#endif 9493 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9494 num_filled++; 9495 } else { 9496 printf("ctl_report_luns: bogus LUN number %jd, " 9497 "skipping\n", (intmax_t)targ_lun_id); 9498 } 9499 /* 9500 * According to SPC-3, rev 14 section 6.21: 9501 * 9502 * "The execution of a REPORT LUNS command to any valid and 9503 * installed logical unit shall clear the REPORTED LUNS DATA 9504 * HAS CHANGED unit attention condition for all logical 9505 * units of that target with respect to the requesting 9506 * initiator. A valid and installed logical unit is one 9507 * having a PERIPHERAL QUALIFIER of 000b in the standard 9508 * INQUIRY data (see 6.4.2)." 9509 * 9510 * If request_lun is NULL, the LUN this report luns command 9511 * was issued to is either disabled or doesn't exist. In that 9512 * case, we shouldn't clear any pending lun change unit 9513 * attention. 9514 */ 9515 if (request_lun != NULL) { 9516 mtx_lock(&lun->lun_lock); 9517 lun->pending_sense[initidx].ua_pending &= 9518 ~CTL_UA_LUN_CHANGE; 9519 mtx_unlock(&lun->lun_lock); 9520 } 9521 } 9522 mtx_unlock(&control_softc->ctl_lock); 9523 9524 /* 9525 * It's quite possible that we've returned fewer LUNs than we allocated 9526 * space for. Trim it. 9527 */ 9528 lun_datalen = sizeof(*lun_data) + 9529 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9530 9531 if (lun_datalen < alloc_len) { 9532 ctsio->residual = alloc_len - lun_datalen; 9533 ctsio->kern_data_len = lun_datalen; 9534 ctsio->kern_total_len = lun_datalen; 9535 } else { 9536 ctsio->residual = 0; 9537 ctsio->kern_data_len = alloc_len; 9538 ctsio->kern_total_len = alloc_len; 9539 } 9540 ctsio->kern_data_resid = 0; 9541 ctsio->kern_rel_offset = 0; 9542 ctsio->kern_sg_entries = 0; 9543 9544 /* 9545 * We set this to the actual data length, regardless of how much 9546 * space we actually have to return results. If the user looks at 9547 * this value, he'll know whether or not he allocated enough space 9548 * and reissue the command if necessary. We don't support well 9549 * known logical units, so if the user asks for that, return none. 9550 */ 9551 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9552 9553 /* 9554 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9555 * this request. 9556 */ 9557 ctsio->scsi_status = SCSI_STATUS_OK; 9558 9559 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9560 ctsio->be_move_done = ctl_config_move_done; 9561 ctl_datamove((union ctl_io *)ctsio); 9562 9563 return (retval); 9564} 9565 9566int 9567ctl_request_sense(struct ctl_scsiio *ctsio) 9568{ 9569 struct scsi_request_sense *cdb; 9570 struct scsi_sense_data *sense_ptr; 9571 struct ctl_lun *lun; 9572 uint32_t initidx; 9573 int have_error; 9574 scsi_sense_data_type sense_format; 9575 9576 cdb = (struct scsi_request_sense *)ctsio->cdb; 9577 9578 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9579 9580 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9581 9582 /* 9583 * Determine which sense format the user wants. 9584 */ 9585 if (cdb->byte2 & SRS_DESC) 9586 sense_format = SSD_TYPE_DESC; 9587 else 9588 sense_format = SSD_TYPE_FIXED; 9589 9590 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9591 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9592 ctsio->kern_sg_entries = 0; 9593 9594 /* 9595 * struct scsi_sense_data, which is currently set to 256 bytes, is 9596 * larger than the largest allowed value for the length field in the 9597 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9598 */ 9599 ctsio->residual = 0; 9600 ctsio->kern_data_len = cdb->length; 9601 ctsio->kern_total_len = cdb->length; 9602 9603 ctsio->kern_data_resid = 0; 9604 ctsio->kern_rel_offset = 0; 9605 ctsio->kern_sg_entries = 0; 9606 9607 /* 9608 * If we don't have a LUN, we don't have any pending sense. 9609 */ 9610 if (lun == NULL) 9611 goto no_sense; 9612 9613 have_error = 0; 9614 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9615 /* 9616 * Check for pending sense, and then for pending unit attentions. 9617 * Pending sense gets returned first, then pending unit attentions. 9618 */ 9619 mtx_lock(&lun->lun_lock); 9620 if (ctl_is_set(lun->have_ca, initidx)) { 9621 scsi_sense_data_type stored_format; 9622 9623 /* 9624 * Check to see which sense format was used for the stored 9625 * sense data. 9626 */ 9627 stored_format = scsi_sense_type( 9628 &lun->pending_sense[initidx].sense); 9629 9630 /* 9631 * If the user requested a different sense format than the 9632 * one we stored, then we need to convert it to the other 9633 * format. If we're going from descriptor to fixed format 9634 * sense data, we may lose things in translation, depending 9635 * on what options were used. 9636 * 9637 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9638 * for some reason we'll just copy it out as-is. 9639 */ 9640 if ((stored_format == SSD_TYPE_FIXED) 9641 && (sense_format == SSD_TYPE_DESC)) 9642 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9643 &lun->pending_sense[initidx].sense, 9644 (struct scsi_sense_data_desc *)sense_ptr); 9645 else if ((stored_format == SSD_TYPE_DESC) 9646 && (sense_format == SSD_TYPE_FIXED)) 9647 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9648 &lun->pending_sense[initidx].sense, 9649 (struct scsi_sense_data_fixed *)sense_ptr); 9650 else 9651 memcpy(sense_ptr, &lun->pending_sense[initidx].sense, 9652 ctl_min(sizeof(*sense_ptr), 9653 sizeof(lun->pending_sense[initidx].sense))); 9654 9655 ctl_clear_mask(lun->have_ca, initidx); 9656 have_error = 1; 9657 } else if (lun->pending_sense[initidx].ua_pending != CTL_UA_NONE) { 9658 ctl_ua_type ua_type; 9659 9660 ua_type = ctl_build_ua(lun->pending_sense[initidx].ua_pending, 9661 sense_ptr, sense_format); 9662 if (ua_type != CTL_UA_NONE) { 9663 have_error = 1; 9664 /* We're reporting this UA, so clear it */ 9665 lun->pending_sense[initidx].ua_pending &= ~ua_type; 9666 } 9667 } 9668 mtx_unlock(&lun->lun_lock); 9669 9670 /* 9671 * We already have a pending error, return it. 9672 */ 9673 if (have_error != 0) { 9674 /* 9675 * We report the SCSI status as OK, since the status of the 9676 * request sense command itself is OK. 9677 */ 9678 ctsio->scsi_status = SCSI_STATUS_OK; 9679 9680 /* 9681 * We report 0 for the sense length, because we aren't doing 9682 * autosense in this case. We're reporting sense as 9683 * parameter data. 9684 */ 9685 ctsio->sense_len = 0; 9686 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9687 ctsio->be_move_done = ctl_config_move_done; 9688 ctl_datamove((union ctl_io *)ctsio); 9689 9690 return (CTL_RETVAL_COMPLETE); 9691 } 9692 9693no_sense: 9694 9695 /* 9696 * No sense information to report, so we report that everything is 9697 * okay. 9698 */ 9699 ctl_set_sense_data(sense_ptr, 9700 lun, 9701 sense_format, 9702 /*current_error*/ 1, 9703 /*sense_key*/ SSD_KEY_NO_SENSE, 9704 /*asc*/ 0x00, 9705 /*ascq*/ 0x00, 9706 SSD_ELEM_NONE); 9707 9708 ctsio->scsi_status = SCSI_STATUS_OK; 9709 9710 /* 9711 * We report 0 for the sense length, because we aren't doing 9712 * autosense in this case. We're reporting sense as parameter data. 9713 */ 9714 ctsio->sense_len = 0; 9715 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9716 ctsio->be_move_done = ctl_config_move_done; 9717 ctl_datamove((union ctl_io *)ctsio); 9718 9719 return (CTL_RETVAL_COMPLETE); 9720} 9721 9722int 9723ctl_tur(struct ctl_scsiio *ctsio) 9724{ 9725 struct ctl_lun *lun; 9726 9727 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9728 9729 CTL_DEBUG_PRINT(("ctl_tur\n")); 9730 9731 if (lun == NULL) 9732 return (EINVAL); 9733 9734 ctsio->scsi_status = SCSI_STATUS_OK; 9735 ctsio->io_hdr.status = CTL_SUCCESS; 9736 9737 ctl_done((union ctl_io *)ctsio); 9738 9739 return (CTL_RETVAL_COMPLETE); 9740} 9741 9742#ifdef notyet 9743static int 9744ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9745{ 9746 9747} 9748#endif 9749 9750static int 9751ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9752{ 9753 struct scsi_vpd_supported_pages *pages; 9754 int sup_page_size; 9755 struct ctl_lun *lun; 9756 9757 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9758 9759 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9760 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9761 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9762 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9763 ctsio->kern_sg_entries = 0; 9764 9765 if (sup_page_size < alloc_len) { 9766 ctsio->residual = alloc_len - sup_page_size; 9767 ctsio->kern_data_len = sup_page_size; 9768 ctsio->kern_total_len = sup_page_size; 9769 } else { 9770 ctsio->residual = 0; 9771 ctsio->kern_data_len = alloc_len; 9772 ctsio->kern_total_len = alloc_len; 9773 } 9774 ctsio->kern_data_resid = 0; 9775 ctsio->kern_rel_offset = 0; 9776 ctsio->kern_sg_entries = 0; 9777 9778 /* 9779 * The control device is always connected. The disk device, on the 9780 * other hand, may not be online all the time. Need to change this 9781 * to figure out whether the disk device is actually online or not. 9782 */ 9783 if (lun != NULL) 9784 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9785 lun->be_lun->lun_type; 9786 else 9787 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9788 9789 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9790 /* Supported VPD pages */ 9791 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9792 /* Serial Number */ 9793 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9794 /* Device Identification */ 9795 pages->page_list[2] = SVPD_DEVICE_ID; 9796 /* SCSI Ports */ 9797 pages->page_list[3] = SVPD_SCSI_PORTS; 9798 /* Block limits */ 9799 pages->page_list[4] = SVPD_BLOCK_LIMITS; 9800 /* Logical Block Provisioning */ 9801 pages->page_list[5] = SVPD_LBP; 9802 9803 ctsio->scsi_status = SCSI_STATUS_OK; 9804 9805 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9806 ctsio->be_move_done = ctl_config_move_done; 9807 ctl_datamove((union ctl_io *)ctsio); 9808 9809 return (CTL_RETVAL_COMPLETE); 9810} 9811 9812static int 9813ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9814{ 9815 struct scsi_vpd_unit_serial_number *sn_ptr; 9816 struct ctl_lun *lun; 9817 9818 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9819 9820 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9821 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9822 ctsio->kern_sg_entries = 0; 9823 9824 if (sizeof(*sn_ptr) < alloc_len) { 9825 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9826 ctsio->kern_data_len = sizeof(*sn_ptr); 9827 ctsio->kern_total_len = sizeof(*sn_ptr); 9828 } else { 9829 ctsio->residual = 0; 9830 ctsio->kern_data_len = alloc_len; 9831 ctsio->kern_total_len = alloc_len; 9832 } 9833 ctsio->kern_data_resid = 0; 9834 ctsio->kern_rel_offset = 0; 9835 ctsio->kern_sg_entries = 0; 9836 9837 /* 9838 * The control device is always connected. The disk device, on the 9839 * other hand, may not be online all the time. Need to change this 9840 * to figure out whether the disk device is actually online or not. 9841 */ 9842 if (lun != NULL) 9843 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9844 lun->be_lun->lun_type; 9845 else 9846 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9847 9848 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9849 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9850 /* 9851 * If we don't have a LUN, we just leave the serial number as 9852 * all spaces. 9853 */ 9854 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9855 if (lun != NULL) { 9856 strncpy((char *)sn_ptr->serial_num, 9857 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9858 } 9859 ctsio->scsi_status = SCSI_STATUS_OK; 9860 9861 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9862 ctsio->be_move_done = ctl_config_move_done; 9863 ctl_datamove((union ctl_io *)ctsio); 9864 9865 return (CTL_RETVAL_COMPLETE); 9866} 9867 9868 9869static int 9870ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9871{ 9872 struct scsi_vpd_device_id *devid_ptr; 9873 struct scsi_vpd_id_descriptor *desc; 9874 struct ctl_softc *ctl_softc; 9875 struct ctl_lun *lun; 9876 struct ctl_port *port; 9877 int data_len; 9878 uint8_t proto; 9879 9880 ctl_softc = control_softc; 9881 9882 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9883 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9884 9885 data_len = sizeof(struct scsi_vpd_device_id) + 9886 sizeof(struct scsi_vpd_id_descriptor) + 9887 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9888 sizeof(struct scsi_vpd_id_descriptor) + 9889 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9890 if (lun && lun->lun_devid) 9891 data_len += lun->lun_devid->len; 9892 if (port->port_devid) 9893 data_len += port->port_devid->len; 9894 if (port->target_devid) 9895 data_len += port->target_devid->len; 9896 9897 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9898 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9899 ctsio->kern_sg_entries = 0; 9900 9901 if (data_len < alloc_len) { 9902 ctsio->residual = alloc_len - data_len; 9903 ctsio->kern_data_len = data_len; 9904 ctsio->kern_total_len = data_len; 9905 } else { 9906 ctsio->residual = 0; 9907 ctsio->kern_data_len = alloc_len; 9908 ctsio->kern_total_len = alloc_len; 9909 } 9910 ctsio->kern_data_resid = 0; 9911 ctsio->kern_rel_offset = 0; 9912 ctsio->kern_sg_entries = 0; 9913 9914 /* 9915 * The control device is always connected. The disk device, on the 9916 * other hand, may not be online all the time. 9917 */ 9918 if (lun != NULL) 9919 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9920 lun->be_lun->lun_type; 9921 else 9922 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9923 devid_ptr->page_code = SVPD_DEVICE_ID; 9924 scsi_ulto2b(data_len - 4, devid_ptr->length); 9925 9926 if (port->port_type == CTL_PORT_FC) 9927 proto = SCSI_PROTO_FC << 4; 9928 else if (port->port_type == CTL_PORT_ISCSI) 9929 proto = SCSI_PROTO_ISCSI << 4; 9930 else 9931 proto = SCSI_PROTO_SPI << 4; 9932 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9933 9934 /* 9935 * We're using a LUN association here. i.e., this device ID is a 9936 * per-LUN identifier. 9937 */ 9938 if (lun && lun->lun_devid) { 9939 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9940 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9941 lun->lun_devid->len); 9942 } 9943 9944 /* 9945 * This is for the WWPN which is a port association. 9946 */ 9947 if (port->port_devid) { 9948 memcpy(desc, port->port_devid->data, port->port_devid->len); 9949 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9950 port->port_devid->len); 9951 } 9952 9953 /* 9954 * This is for the Relative Target Port(type 4h) identifier 9955 */ 9956 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9957 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9958 SVPD_ID_TYPE_RELTARG; 9959 desc->length = 4; 9960 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9961 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9962 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9963 9964 /* 9965 * This is for the Target Port Group(type 5h) identifier 9966 */ 9967 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9968 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9969 SVPD_ID_TYPE_TPORTGRP; 9970 desc->length = 4; 9971 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9972 &desc->identifier[2]); 9973 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9974 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9975 9976 /* 9977 * This is for the Target identifier 9978 */ 9979 if (port->target_devid) { 9980 memcpy(desc, port->target_devid->data, port->target_devid->len); 9981 } 9982 9983 ctsio->scsi_status = SCSI_STATUS_OK; 9984 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9985 ctsio->be_move_done = ctl_config_move_done; 9986 ctl_datamove((union ctl_io *)ctsio); 9987 9988 return (CTL_RETVAL_COMPLETE); 9989} 9990 9991static int 9992ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9993{ 9994 struct ctl_softc *softc = control_softc; 9995 struct scsi_vpd_scsi_ports *sp; 9996 struct scsi_vpd_port_designation *pd; 9997 struct scsi_vpd_port_designation_cont *pdc; 9998 struct ctl_lun *lun; 9999 struct ctl_port *port; 10000 int data_len, num_target_ports, id_len, g, pg, p; 10001 int num_target_port_groups, single; 10002 10003 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10004 10005 single = ctl_is_single; 10006 if (single) 10007 num_target_port_groups = 1; 10008 else 10009 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10010 num_target_ports = 0; 10011 id_len = 0; 10012 mtx_lock(&softc->ctl_lock); 10013 STAILQ_FOREACH(port, &softc->port_list, links) { 10014 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10015 continue; 10016 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 10017 CTL_MAX_LUNS) 10018 continue; 10019 num_target_ports++; 10020 if (port->port_devid) 10021 id_len += port->port_devid->len; 10022 } 10023 mtx_unlock(&softc->ctl_lock); 10024 10025 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10026 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10027 sizeof(struct scsi_vpd_port_designation_cont)) + id_len; 10028 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10029 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10030 ctsio->kern_sg_entries = 0; 10031 10032 if (data_len < alloc_len) { 10033 ctsio->residual = alloc_len - data_len; 10034 ctsio->kern_data_len = data_len; 10035 ctsio->kern_total_len = data_len; 10036 } else { 10037 ctsio->residual = 0; 10038 ctsio->kern_data_len = alloc_len; 10039 ctsio->kern_total_len = alloc_len; 10040 } 10041 ctsio->kern_data_resid = 0; 10042 ctsio->kern_rel_offset = 0; 10043 ctsio->kern_sg_entries = 0; 10044 10045 /* 10046 * The control device is always connected. The disk device, on the 10047 * other hand, may not be online all the time. Need to change this 10048 * to figure out whether the disk device is actually online or not. 10049 */ 10050 if (lun != NULL) 10051 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10052 lun->be_lun->lun_type; 10053 else 10054 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10055 10056 sp->page_code = SVPD_SCSI_PORTS; 10057 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10058 sp->page_length); 10059 pd = &sp->design[0]; 10060 10061 mtx_lock(&softc->ctl_lock); 10062 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10063 pg = 0; 10064 else 10065 pg = 1; 10066 for (g = 0; g < num_target_port_groups; g++) { 10067 STAILQ_FOREACH(port, &softc->port_list, links) { 10068 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10069 continue; 10070 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 10071 CTL_MAX_LUNS) 10072 continue; 10073 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10074 scsi_ulto2b(p, pd->relative_port_id); 10075 scsi_ulto2b(0, pd->initiator_transportid_length); 10076 pdc = (struct scsi_vpd_port_designation_cont *) 10077 &pd->initiator_transportid[0]; 10078 if (port->port_devid && g == pg) { 10079 id_len = port->port_devid->len; 10080 scsi_ulto2b(port->port_devid->len, 10081 pdc->target_port_descriptors_length); 10082 memcpy(pdc->target_port_descriptors, 10083 port->port_devid->data, port->port_devid->len); 10084 } else { 10085 id_len = 0; 10086 scsi_ulto2b(0, pdc->target_port_descriptors_length); 10087 } 10088 pd = (struct scsi_vpd_port_designation *) 10089 ((uint8_t *)pdc->target_port_descriptors + id_len); 10090 } 10091 } 10092 mtx_unlock(&softc->ctl_lock); 10093 10094 ctsio->scsi_status = SCSI_STATUS_OK; 10095 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10096 ctsio->be_move_done = ctl_config_move_done; 10097 ctl_datamove((union ctl_io *)ctsio); 10098 10099 return (CTL_RETVAL_COMPLETE); 10100} 10101 10102static int 10103ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10104{ 10105 struct scsi_vpd_block_limits *bl_ptr; 10106 struct ctl_lun *lun; 10107 int bs; 10108 10109 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10110 bs = lun->be_lun->blocksize; 10111 10112 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10113 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10114 ctsio->kern_sg_entries = 0; 10115 10116 if (sizeof(*bl_ptr) < alloc_len) { 10117 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10118 ctsio->kern_data_len = sizeof(*bl_ptr); 10119 ctsio->kern_total_len = sizeof(*bl_ptr); 10120 } else { 10121 ctsio->residual = 0; 10122 ctsio->kern_data_len = alloc_len; 10123 ctsio->kern_total_len = alloc_len; 10124 } 10125 ctsio->kern_data_resid = 0; 10126 ctsio->kern_rel_offset = 0; 10127 ctsio->kern_sg_entries = 0; 10128 10129 /* 10130 * The control device is always connected. The disk device, on the 10131 * other hand, may not be online all the time. Need to change this 10132 * to figure out whether the disk device is actually online or not. 10133 */ 10134 if (lun != NULL) 10135 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10136 lun->be_lun->lun_type; 10137 else 10138 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10139 10140 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10141 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10142 bl_ptr->max_cmp_write_len = 0xff; 10143 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10144 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10145 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10146 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10147 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10148 } 10149 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10150 10151 ctsio->scsi_status = SCSI_STATUS_OK; 10152 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10153 ctsio->be_move_done = ctl_config_move_done; 10154 ctl_datamove((union ctl_io *)ctsio); 10155 10156 return (CTL_RETVAL_COMPLETE); 10157} 10158 10159static int 10160ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10161{ 10162 struct scsi_vpd_logical_block_prov *lbp_ptr; 10163 struct ctl_lun *lun; 10164 int bs; 10165 10166 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10167 bs = lun->be_lun->blocksize; 10168 10169 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10170 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10171 ctsio->kern_sg_entries = 0; 10172 10173 if (sizeof(*lbp_ptr) < alloc_len) { 10174 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10175 ctsio->kern_data_len = sizeof(*lbp_ptr); 10176 ctsio->kern_total_len = sizeof(*lbp_ptr); 10177 } else { 10178 ctsio->residual = 0; 10179 ctsio->kern_data_len = alloc_len; 10180 ctsio->kern_total_len = alloc_len; 10181 } 10182 ctsio->kern_data_resid = 0; 10183 ctsio->kern_rel_offset = 0; 10184 ctsio->kern_sg_entries = 0; 10185 10186 /* 10187 * The control device is always connected. The disk device, on the 10188 * other hand, may not be online all the time. Need to change this 10189 * to figure out whether the disk device is actually online or not. 10190 */ 10191 if (lun != NULL) 10192 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10193 lun->be_lun->lun_type; 10194 else 10195 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10196 10197 lbp_ptr->page_code = SVPD_LBP; 10198 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 10199 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | SVPD_LBP_WS10; 10200 10201 ctsio->scsi_status = SCSI_STATUS_OK; 10202 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10203 ctsio->be_move_done = ctl_config_move_done; 10204 ctl_datamove((union ctl_io *)ctsio); 10205 10206 return (CTL_RETVAL_COMPLETE); 10207} 10208 10209static int 10210ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10211{ 10212 struct scsi_inquiry *cdb; 10213 struct ctl_lun *lun; 10214 int alloc_len, retval; 10215 10216 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10217 cdb = (struct scsi_inquiry *)ctsio->cdb; 10218 10219 retval = CTL_RETVAL_COMPLETE; 10220 10221 alloc_len = scsi_2btoul(cdb->length); 10222 10223 switch (cdb->page_code) { 10224 case SVPD_SUPPORTED_PAGES: 10225 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10226 break; 10227 case SVPD_UNIT_SERIAL_NUMBER: 10228 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10229 break; 10230 case SVPD_DEVICE_ID: 10231 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10232 break; 10233 case SVPD_SCSI_PORTS: 10234 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10235 break; 10236 case SVPD_BLOCK_LIMITS: 10237 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10238 break; 10239 case SVPD_LBP: 10240 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10241 break; 10242 default: 10243 ctl_set_invalid_field(ctsio, 10244 /*sks_valid*/ 1, 10245 /*command*/ 1, 10246 /*field*/ 2, 10247 /*bit_valid*/ 0, 10248 /*bit*/ 0); 10249 ctl_done((union ctl_io *)ctsio); 10250 retval = CTL_RETVAL_COMPLETE; 10251 break; 10252 } 10253 10254 return (retval); 10255} 10256 10257static int 10258ctl_inquiry_std(struct ctl_scsiio *ctsio) 10259{ 10260 struct scsi_inquiry_data *inq_ptr; 10261 struct scsi_inquiry *cdb; 10262 struct ctl_softc *ctl_softc; 10263 struct ctl_lun *lun; 10264 char *val; 10265 uint32_t alloc_len; 10266 int is_fc; 10267 10268 ctl_softc = control_softc; 10269 10270 /* 10271 * Figure out whether we're talking to a Fibre Channel port or not. 10272 * We treat the ioctl front end, and any SCSI adapters, as packetized 10273 * SCSI front ends. 10274 */ 10275 if (ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type != 10276 CTL_PORT_FC) 10277 is_fc = 0; 10278 else 10279 is_fc = 1; 10280 10281 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10282 cdb = (struct scsi_inquiry *)ctsio->cdb; 10283 alloc_len = scsi_2btoul(cdb->length); 10284 10285 /* 10286 * We malloc the full inquiry data size here and fill it 10287 * in. If the user only asks for less, we'll give him 10288 * that much. 10289 */ 10290 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10291 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10292 ctsio->kern_sg_entries = 0; 10293 ctsio->kern_data_resid = 0; 10294 ctsio->kern_rel_offset = 0; 10295 10296 if (sizeof(*inq_ptr) < alloc_len) { 10297 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10298 ctsio->kern_data_len = sizeof(*inq_ptr); 10299 ctsio->kern_total_len = sizeof(*inq_ptr); 10300 } else { 10301 ctsio->residual = 0; 10302 ctsio->kern_data_len = alloc_len; 10303 ctsio->kern_total_len = alloc_len; 10304 } 10305 10306 /* 10307 * If we have a LUN configured, report it as connected. Otherwise, 10308 * report that it is offline or no device is supported, depending 10309 * on the value of inquiry_pq_no_lun. 10310 * 10311 * According to the spec (SPC-4 r34), the peripheral qualifier 10312 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10313 * 10314 * "A peripheral device having the specified peripheral device type 10315 * is not connected to this logical unit. However, the device 10316 * server is capable of supporting the specified peripheral device 10317 * type on this logical unit." 10318 * 10319 * According to the same spec, the peripheral qualifier 10320 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10321 * 10322 * "The device server is not capable of supporting a peripheral 10323 * device on this logical unit. For this peripheral qualifier the 10324 * peripheral device type shall be set to 1Fh. All other peripheral 10325 * device type values are reserved for this peripheral qualifier." 10326 * 10327 * Given the text, it would seem that we probably want to report that 10328 * the LUN is offline here. There is no LUN connected, but we can 10329 * support a LUN at the given LUN number. 10330 * 10331 * In the real world, though, it sounds like things are a little 10332 * different: 10333 * 10334 * - Linux, when presented with a LUN with the offline peripheral 10335 * qualifier, will create an sg driver instance for it. So when 10336 * you attach it to CTL, you wind up with a ton of sg driver 10337 * instances. (One for every LUN that Linux bothered to probe.) 10338 * Linux does this despite the fact that it issues a REPORT LUNs 10339 * to LUN 0 to get the inventory of supported LUNs. 10340 * 10341 * - There is other anecdotal evidence (from Emulex folks) about 10342 * arrays that use the offline peripheral qualifier for LUNs that 10343 * are on the "passive" path in an active/passive array. 10344 * 10345 * So the solution is provide a hopefully reasonable default 10346 * (return bad/no LUN) and allow the user to change the behavior 10347 * with a tunable/sysctl variable. 10348 */ 10349 if (lun != NULL) 10350 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10351 lun->be_lun->lun_type; 10352 else if (ctl_softc->inquiry_pq_no_lun == 0) 10353 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10354 else 10355 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10356 10357 /* RMB in byte 2 is 0 */ 10358 inq_ptr->version = SCSI_REV_SPC3; 10359 10360 /* 10361 * According to SAM-3, even if a device only supports a single 10362 * level of LUN addressing, it should still set the HISUP bit: 10363 * 10364 * 4.9.1 Logical unit numbers overview 10365 * 10366 * All logical unit number formats described in this standard are 10367 * hierarchical in structure even when only a single level in that 10368 * hierarchy is used. The HISUP bit shall be set to one in the 10369 * standard INQUIRY data (see SPC-2) when any logical unit number 10370 * format described in this standard is used. Non-hierarchical 10371 * formats are outside the scope of this standard. 10372 * 10373 * Therefore we set the HiSup bit here. 10374 * 10375 * The reponse format is 2, per SPC-3. 10376 */ 10377 inq_ptr->response_format = SID_HiSup | 2; 10378 10379 inq_ptr->additional_length = sizeof(*inq_ptr) - 4; 10380 CTL_DEBUG_PRINT(("additional_length = %d\n", 10381 inq_ptr->additional_length)); 10382 10383 inq_ptr->spc3_flags = SPC3_SID_TPGS_IMPLICIT; 10384 /* 16 bit addressing */ 10385 if (is_fc == 0) 10386 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10387 /* XXX set the SID_MultiP bit here if we're actually going to 10388 respond on multiple ports */ 10389 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10390 10391 /* 16 bit data bus, synchronous transfers */ 10392 /* XXX these flags don't apply for FC */ 10393 if (is_fc == 0) 10394 inq_ptr->flags = SID_WBus16 | SID_Sync; 10395 /* 10396 * XXX KDM do we want to support tagged queueing on the control 10397 * device at all? 10398 */ 10399 if ((lun == NULL) 10400 || (lun->be_lun->lun_type != T_PROCESSOR)) 10401 inq_ptr->flags |= SID_CmdQue; 10402 /* 10403 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10404 * We have 8 bytes for the vendor name, and 16 bytes for the device 10405 * name and 4 bytes for the revision. 10406 */ 10407 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10408 "vendor")) == NULL) { 10409 strcpy(inq_ptr->vendor, CTL_VENDOR); 10410 } else { 10411 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10412 strncpy(inq_ptr->vendor, val, 10413 min(sizeof(inq_ptr->vendor), strlen(val))); 10414 } 10415 if (lun == NULL) { 10416 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10417 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10418 switch (lun->be_lun->lun_type) { 10419 case T_DIRECT: 10420 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10421 break; 10422 case T_PROCESSOR: 10423 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10424 break; 10425 default: 10426 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10427 break; 10428 } 10429 } else { 10430 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10431 strncpy(inq_ptr->product, val, 10432 min(sizeof(inq_ptr->product), strlen(val))); 10433 } 10434 10435 /* 10436 * XXX make this a macro somewhere so it automatically gets 10437 * incremented when we make changes. 10438 */ 10439 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10440 "revision")) == NULL) { 10441 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10442 } else { 10443 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10444 strncpy(inq_ptr->revision, val, 10445 min(sizeof(inq_ptr->revision), strlen(val))); 10446 } 10447 10448 /* 10449 * For parallel SCSI, we support double transition and single 10450 * transition clocking. We also support QAS (Quick Arbitration 10451 * and Selection) and Information Unit transfers on both the 10452 * control and array devices. 10453 */ 10454 if (is_fc == 0) 10455 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10456 SID_SPI_IUS; 10457 10458 /* SAM-3 */ 10459 scsi_ulto2b(0x0060, inq_ptr->version1); 10460 /* SPC-3 (no version claimed) XXX should we claim a version? */ 10461 scsi_ulto2b(0x0300, inq_ptr->version2); 10462 if (is_fc) { 10463 /* FCP-2 ANSI INCITS.350:2003 */ 10464 scsi_ulto2b(0x0917, inq_ptr->version3); 10465 } else { 10466 /* SPI-4 ANSI INCITS.362:200x */ 10467 scsi_ulto2b(0x0B56, inq_ptr->version3); 10468 } 10469 10470 if (lun == NULL) { 10471 /* SBC-2 (no version claimed) XXX should we claim a version? */ 10472 scsi_ulto2b(0x0320, inq_ptr->version4); 10473 } else { 10474 switch (lun->be_lun->lun_type) { 10475 case T_DIRECT: 10476 /* 10477 * SBC-2 (no version claimed) XXX should we claim a 10478 * version? 10479 */ 10480 scsi_ulto2b(0x0320, inq_ptr->version4); 10481 break; 10482 case T_PROCESSOR: 10483 default: 10484 break; 10485 } 10486 } 10487 10488 ctsio->scsi_status = SCSI_STATUS_OK; 10489 if (ctsio->kern_data_len > 0) { 10490 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10491 ctsio->be_move_done = ctl_config_move_done; 10492 ctl_datamove((union ctl_io *)ctsio); 10493 } else { 10494 ctsio->io_hdr.status = CTL_SUCCESS; 10495 ctl_done((union ctl_io *)ctsio); 10496 } 10497 10498 return (CTL_RETVAL_COMPLETE); 10499} 10500 10501int 10502ctl_inquiry(struct ctl_scsiio *ctsio) 10503{ 10504 struct scsi_inquiry *cdb; 10505 int retval; 10506 10507 cdb = (struct scsi_inquiry *)ctsio->cdb; 10508 10509 retval = 0; 10510 10511 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10512 10513 /* 10514 * Right now, we don't support the CmdDt inquiry information. 10515 * This would be nice to support in the future. When we do 10516 * support it, we should change this test so that it checks to make 10517 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10518 */ 10519#ifdef notyet 10520 if (((cdb->byte2 & SI_EVPD) 10521 && (cdb->byte2 & SI_CMDDT))) 10522#endif 10523 if (cdb->byte2 & SI_CMDDT) { 10524 /* 10525 * Point to the SI_CMDDT bit. We might change this 10526 * when we support SI_CMDDT, but since both bits would be 10527 * "wrong", this should probably just stay as-is then. 10528 */ 10529 ctl_set_invalid_field(ctsio, 10530 /*sks_valid*/ 1, 10531 /*command*/ 1, 10532 /*field*/ 1, 10533 /*bit_valid*/ 1, 10534 /*bit*/ 1); 10535 ctl_done((union ctl_io *)ctsio); 10536 return (CTL_RETVAL_COMPLETE); 10537 } 10538 if (cdb->byte2 & SI_EVPD) 10539 retval = ctl_inquiry_evpd(ctsio); 10540#ifdef notyet 10541 else if (cdb->byte2 & SI_CMDDT) 10542 retval = ctl_inquiry_cmddt(ctsio); 10543#endif 10544 else 10545 retval = ctl_inquiry_std(ctsio); 10546 10547 return (retval); 10548} 10549 10550/* 10551 * For known CDB types, parse the LBA and length. 10552 */ 10553static int 10554ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10555{ 10556 if (io->io_hdr.io_type != CTL_IO_SCSI) 10557 return (1); 10558 10559 switch (io->scsiio.cdb[0]) { 10560 case COMPARE_AND_WRITE: { 10561 struct scsi_compare_and_write *cdb; 10562 10563 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10564 10565 *lba = scsi_8btou64(cdb->addr); 10566 *len = cdb->length; 10567 break; 10568 } 10569 case READ_6: 10570 case WRITE_6: { 10571 struct scsi_rw_6 *cdb; 10572 10573 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10574 10575 *lba = scsi_3btoul(cdb->addr); 10576 /* only 5 bits are valid in the most significant address byte */ 10577 *lba &= 0x1fffff; 10578 *len = cdb->length; 10579 break; 10580 } 10581 case READ_10: 10582 case WRITE_10: { 10583 struct scsi_rw_10 *cdb; 10584 10585 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10586 10587 *lba = scsi_4btoul(cdb->addr); 10588 *len = scsi_2btoul(cdb->length); 10589 break; 10590 } 10591 case WRITE_VERIFY_10: { 10592 struct scsi_write_verify_10 *cdb; 10593 10594 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10595 10596 *lba = scsi_4btoul(cdb->addr); 10597 *len = scsi_2btoul(cdb->length); 10598 break; 10599 } 10600 case READ_12: 10601 case WRITE_12: { 10602 struct scsi_rw_12 *cdb; 10603 10604 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10605 10606 *lba = scsi_4btoul(cdb->addr); 10607 *len = scsi_4btoul(cdb->length); 10608 break; 10609 } 10610 case WRITE_VERIFY_12: { 10611 struct scsi_write_verify_12 *cdb; 10612 10613 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10614 10615 *lba = scsi_4btoul(cdb->addr); 10616 *len = scsi_4btoul(cdb->length); 10617 break; 10618 } 10619 case READ_16: 10620 case WRITE_16: { 10621 struct scsi_rw_16 *cdb; 10622 10623 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10624 10625 *lba = scsi_8btou64(cdb->addr); 10626 *len = scsi_4btoul(cdb->length); 10627 break; 10628 } 10629 case WRITE_VERIFY_16: { 10630 struct scsi_write_verify_16 *cdb; 10631 10632 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10633 10634 10635 *lba = scsi_8btou64(cdb->addr); 10636 *len = scsi_4btoul(cdb->length); 10637 break; 10638 } 10639 case WRITE_SAME_10: { 10640 struct scsi_write_same_10 *cdb; 10641 10642 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10643 10644 *lba = scsi_4btoul(cdb->addr); 10645 *len = scsi_2btoul(cdb->length); 10646 break; 10647 } 10648 case WRITE_SAME_16: { 10649 struct scsi_write_same_16 *cdb; 10650 10651 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10652 10653 *lba = scsi_8btou64(cdb->addr); 10654 *len = scsi_4btoul(cdb->length); 10655 break; 10656 } 10657 case VERIFY_10: { 10658 struct scsi_verify_10 *cdb; 10659 10660 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10661 10662 *lba = scsi_4btoul(cdb->addr); 10663 *len = scsi_2btoul(cdb->length); 10664 break; 10665 } 10666 case VERIFY_12: { 10667 struct scsi_verify_12 *cdb; 10668 10669 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10670 10671 *lba = scsi_4btoul(cdb->addr); 10672 *len = scsi_4btoul(cdb->length); 10673 break; 10674 } 10675 case VERIFY_16: { 10676 struct scsi_verify_16 *cdb; 10677 10678 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10679 10680 *lba = scsi_8btou64(cdb->addr); 10681 *len = scsi_4btoul(cdb->length); 10682 break; 10683 } 10684 default: 10685 return (1); 10686 break; /* NOTREACHED */ 10687 } 10688 10689 return (0); 10690} 10691 10692static ctl_action 10693ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10694{ 10695 uint64_t endlba1, endlba2; 10696 10697 endlba1 = lba1 + len1 - 1; 10698 endlba2 = lba2 + len2 - 1; 10699 10700 if ((endlba1 < lba2) 10701 || (endlba2 < lba1)) 10702 return (CTL_ACTION_PASS); 10703 else 10704 return (CTL_ACTION_BLOCK); 10705} 10706 10707static ctl_action 10708ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10709{ 10710 uint64_t lba1, lba2; 10711 uint32_t len1, len2; 10712 int retval; 10713 10714 retval = ctl_get_lba_len(io1, &lba1, &len1); 10715 if (retval != 0) 10716 return (CTL_ACTION_ERROR); 10717 10718 retval = ctl_get_lba_len(io2, &lba2, &len2); 10719 if (retval != 0) 10720 return (CTL_ACTION_ERROR); 10721 10722 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10723} 10724 10725static ctl_action 10726ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10727{ 10728 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10729 ctl_serialize_action *serialize_row; 10730 10731 /* 10732 * The initiator attempted multiple untagged commands at the same 10733 * time. Can't do that. 10734 */ 10735 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10736 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10737 && ((pending_io->io_hdr.nexus.targ_port == 10738 ooa_io->io_hdr.nexus.targ_port) 10739 && (pending_io->io_hdr.nexus.initid.id == 10740 ooa_io->io_hdr.nexus.initid.id)) 10741 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10742 return (CTL_ACTION_OVERLAP); 10743 10744 /* 10745 * The initiator attempted to send multiple tagged commands with 10746 * the same ID. (It's fine if different initiators have the same 10747 * tag ID.) 10748 * 10749 * Even if all of those conditions are true, we don't kill the I/O 10750 * if the command ahead of us has been aborted. We won't end up 10751 * sending it to the FETD, and it's perfectly legal to resend a 10752 * command with the same tag number as long as the previous 10753 * instance of this tag number has been aborted somehow. 10754 */ 10755 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10756 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10757 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10758 && ((pending_io->io_hdr.nexus.targ_port == 10759 ooa_io->io_hdr.nexus.targ_port) 10760 && (pending_io->io_hdr.nexus.initid.id == 10761 ooa_io->io_hdr.nexus.initid.id)) 10762 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10763 return (CTL_ACTION_OVERLAP_TAG); 10764 10765 /* 10766 * If we get a head of queue tag, SAM-3 says that we should 10767 * immediately execute it. 10768 * 10769 * What happens if this command would normally block for some other 10770 * reason? e.g. a request sense with a head of queue tag 10771 * immediately after a write. Normally that would block, but this 10772 * will result in its getting executed immediately... 10773 * 10774 * We currently return "pass" instead of "skip", so we'll end up 10775 * going through the rest of the queue to check for overlapped tags. 10776 * 10777 * XXX KDM check for other types of blockage first?? 10778 */ 10779 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10780 return (CTL_ACTION_PASS); 10781 10782 /* 10783 * Ordered tags have to block until all items ahead of them 10784 * have completed. If we get called with an ordered tag, we always 10785 * block, if something else is ahead of us in the queue. 10786 */ 10787 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10788 return (CTL_ACTION_BLOCK); 10789 10790 /* 10791 * Simple tags get blocked until all head of queue and ordered tags 10792 * ahead of them have completed. I'm lumping untagged commands in 10793 * with simple tags here. XXX KDM is that the right thing to do? 10794 */ 10795 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10796 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10797 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10798 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10799 return (CTL_ACTION_BLOCK); 10800 10801 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10802 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10803 10804 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10805 10806 switch (serialize_row[pending_entry->seridx]) { 10807 case CTL_SER_BLOCK: 10808 return (CTL_ACTION_BLOCK); 10809 break; /* NOTREACHED */ 10810 case CTL_SER_EXTENT: 10811 return (ctl_extent_check(pending_io, ooa_io)); 10812 break; /* NOTREACHED */ 10813 case CTL_SER_PASS: 10814 return (CTL_ACTION_PASS); 10815 break; /* NOTREACHED */ 10816 case CTL_SER_SKIP: 10817 return (CTL_ACTION_SKIP); 10818 break; 10819 default: 10820 panic("invalid serialization value %d", 10821 serialize_row[pending_entry->seridx]); 10822 break; /* NOTREACHED */ 10823 } 10824 10825 return (CTL_ACTION_ERROR); 10826} 10827 10828/* 10829 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10830 * Assumptions: 10831 * - pending_io is generally either incoming, or on the blocked queue 10832 * - starting I/O is the I/O we want to start the check with. 10833 */ 10834static ctl_action 10835ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10836 union ctl_io *starting_io) 10837{ 10838 union ctl_io *ooa_io; 10839 ctl_action action; 10840 10841 mtx_assert(&lun->lun_lock, MA_OWNED); 10842 10843 /* 10844 * Run back along the OOA queue, starting with the current 10845 * blocked I/O and going through every I/O before it on the 10846 * queue. If starting_io is NULL, we'll just end up returning 10847 * CTL_ACTION_PASS. 10848 */ 10849 for (ooa_io = starting_io; ooa_io != NULL; 10850 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10851 ooa_links)){ 10852 10853 /* 10854 * This routine just checks to see whether 10855 * cur_blocked is blocked by ooa_io, which is ahead 10856 * of it in the queue. It doesn't queue/dequeue 10857 * cur_blocked. 10858 */ 10859 action = ctl_check_for_blockage(pending_io, ooa_io); 10860 switch (action) { 10861 case CTL_ACTION_BLOCK: 10862 case CTL_ACTION_OVERLAP: 10863 case CTL_ACTION_OVERLAP_TAG: 10864 case CTL_ACTION_SKIP: 10865 case CTL_ACTION_ERROR: 10866 return (action); 10867 break; /* NOTREACHED */ 10868 case CTL_ACTION_PASS: 10869 break; 10870 default: 10871 panic("invalid action %d", action); 10872 break; /* NOTREACHED */ 10873 } 10874 } 10875 10876 return (CTL_ACTION_PASS); 10877} 10878 10879/* 10880 * Assumptions: 10881 * - An I/O has just completed, and has been removed from the per-LUN OOA 10882 * queue, so some items on the blocked queue may now be unblocked. 10883 */ 10884static int 10885ctl_check_blocked(struct ctl_lun *lun) 10886{ 10887 union ctl_io *cur_blocked, *next_blocked; 10888 10889 mtx_assert(&lun->lun_lock, MA_OWNED); 10890 10891 /* 10892 * Run forward from the head of the blocked queue, checking each 10893 * entry against the I/Os prior to it on the OOA queue to see if 10894 * there is still any blockage. 10895 * 10896 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10897 * with our removing a variable on it while it is traversing the 10898 * list. 10899 */ 10900 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10901 cur_blocked != NULL; cur_blocked = next_blocked) { 10902 union ctl_io *prev_ooa; 10903 ctl_action action; 10904 10905 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10906 blocked_links); 10907 10908 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10909 ctl_ooaq, ooa_links); 10910 10911 /* 10912 * If cur_blocked happens to be the first item in the OOA 10913 * queue now, prev_ooa will be NULL, and the action 10914 * returned will just be CTL_ACTION_PASS. 10915 */ 10916 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10917 10918 switch (action) { 10919 case CTL_ACTION_BLOCK: 10920 /* Nothing to do here, still blocked */ 10921 break; 10922 case CTL_ACTION_OVERLAP: 10923 case CTL_ACTION_OVERLAP_TAG: 10924 /* 10925 * This shouldn't happen! In theory we've already 10926 * checked this command for overlap... 10927 */ 10928 break; 10929 case CTL_ACTION_PASS: 10930 case CTL_ACTION_SKIP: { 10931 struct ctl_softc *softc; 10932 const struct ctl_cmd_entry *entry; 10933 uint32_t initidx; 10934 int isc_retval; 10935 10936 /* 10937 * The skip case shouldn't happen, this transaction 10938 * should have never made it onto the blocked queue. 10939 */ 10940 /* 10941 * This I/O is no longer blocked, we can remove it 10942 * from the blocked queue. Since this is a TAILQ 10943 * (doubly linked list), we can do O(1) removals 10944 * from any place on the list. 10945 */ 10946 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10947 blocked_links); 10948 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10949 10950 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10951 /* 10952 * Need to send IO back to original side to 10953 * run 10954 */ 10955 union ctl_ha_msg msg_info; 10956 10957 msg_info.hdr.original_sc = 10958 cur_blocked->io_hdr.original_sc; 10959 msg_info.hdr.serializing_sc = cur_blocked; 10960 msg_info.hdr.msg_type = CTL_MSG_R2R; 10961 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10962 &msg_info, sizeof(msg_info), 0)) > 10963 CTL_HA_STATUS_SUCCESS) { 10964 printf("CTL:Check Blocked error from " 10965 "ctl_ha_msg_send %d\n", 10966 isc_retval); 10967 } 10968 break; 10969 } 10970 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 10971 softc = control_softc; 10972 10973 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 10974 10975 /* 10976 * Check this I/O for LUN state changes that may 10977 * have happened while this command was blocked. 10978 * The LUN state may have been changed by a command 10979 * ahead of us in the queue, so we need to re-check 10980 * for any states that can be caused by SCSI 10981 * commands. 10982 */ 10983 if (ctl_scsiio_lun_check(softc, lun, entry, 10984 &cur_blocked->scsiio) == 0) { 10985 cur_blocked->io_hdr.flags |= 10986 CTL_FLAG_IS_WAS_ON_RTR; 10987 ctl_enqueue_rtr(cur_blocked); 10988 } else 10989 ctl_done(cur_blocked); 10990 break; 10991 } 10992 default: 10993 /* 10994 * This probably shouldn't happen -- we shouldn't 10995 * get CTL_ACTION_ERROR, or anything else. 10996 */ 10997 break; 10998 } 10999 } 11000 11001 return (CTL_RETVAL_COMPLETE); 11002} 11003 11004/* 11005 * This routine (with one exception) checks LUN flags that can be set by 11006 * commands ahead of us in the OOA queue. These flags have to be checked 11007 * when a command initially comes in, and when we pull a command off the 11008 * blocked queue and are preparing to execute it. The reason we have to 11009 * check these flags for commands on the blocked queue is that the LUN 11010 * state may have been changed by a command ahead of us while we're on the 11011 * blocked queue. 11012 * 11013 * Ordering is somewhat important with these checks, so please pay 11014 * careful attention to the placement of any new checks. 11015 */ 11016static int 11017ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11018 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11019{ 11020 int retval; 11021 11022 retval = 0; 11023 11024 mtx_assert(&lun->lun_lock, MA_OWNED); 11025 11026 /* 11027 * If this shelf is a secondary shelf controller, we have to reject 11028 * any media access commands. 11029 */ 11030#if 0 11031 /* No longer needed for HA */ 11032 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11033 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11034 ctl_set_lun_standby(ctsio); 11035 retval = 1; 11036 goto bailout; 11037 } 11038#endif 11039 11040 /* 11041 * Check for a reservation conflict. If this command isn't allowed 11042 * even on reserved LUNs, and if this initiator isn't the one who 11043 * reserved us, reject the command with a reservation conflict. 11044 */ 11045 if ((lun->flags & CTL_LUN_RESERVED) 11046 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11047 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11048 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11049 || (ctsio->io_hdr.nexus.targ_target.id != 11050 lun->rsv_nexus.targ_target.id)) { 11051 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11052 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11053 retval = 1; 11054 goto bailout; 11055 } 11056 } 11057 11058 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11059 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11060 uint32_t residx; 11061 11062 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11063 /* 11064 * if we aren't registered or it's a res holder type 11065 * reservation and this isn't the res holder then set a 11066 * conflict. 11067 * NOTE: Commands which might be allowed on write exclusive 11068 * type reservations are checked in the particular command 11069 * for a conflict. Read and SSU are the only ones. 11070 */ 11071 if (!lun->per_res[residx].registered 11072 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11073 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11074 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11075 retval = 1; 11076 goto bailout; 11077 } 11078 11079 } 11080 11081 if ((lun->flags & CTL_LUN_OFFLINE) 11082 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11083 ctl_set_lun_not_ready(ctsio); 11084 retval = 1; 11085 goto bailout; 11086 } 11087 11088 /* 11089 * If the LUN is stopped, see if this particular command is allowed 11090 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11091 */ 11092 if ((lun->flags & CTL_LUN_STOPPED) 11093 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11094 /* "Logical unit not ready, initializing cmd. required" */ 11095 ctl_set_lun_stopped(ctsio); 11096 retval = 1; 11097 goto bailout; 11098 } 11099 11100 if ((lun->flags & CTL_LUN_INOPERABLE) 11101 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11102 /* "Medium format corrupted" */ 11103 ctl_set_medium_format_corrupted(ctsio); 11104 retval = 1; 11105 goto bailout; 11106 } 11107 11108bailout: 11109 return (retval); 11110 11111} 11112 11113static void 11114ctl_failover_io(union ctl_io *io, int have_lock) 11115{ 11116 ctl_set_busy(&io->scsiio); 11117 ctl_done(io); 11118} 11119 11120static void 11121ctl_failover(void) 11122{ 11123 struct ctl_lun *lun; 11124 struct ctl_softc *ctl_softc; 11125 union ctl_io *next_io, *pending_io; 11126 union ctl_io *io; 11127 int lun_idx; 11128 int i; 11129 11130 ctl_softc = control_softc; 11131 11132 mtx_lock(&ctl_softc->ctl_lock); 11133 /* 11134 * Remove any cmds from the other SC from the rtr queue. These 11135 * will obviously only be for LUNs for which we're the primary. 11136 * We can't send status or get/send data for these commands. 11137 * Since they haven't been executed yet, we can just remove them. 11138 * We'll either abort them or delete them below, depending on 11139 * which HA mode we're in. 11140 */ 11141#ifdef notyet 11142 mtx_lock(&ctl_softc->queue_lock); 11143 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11144 io != NULL; io = next_io) { 11145 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11146 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11147 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11148 ctl_io_hdr, links); 11149 } 11150 mtx_unlock(&ctl_softc->queue_lock); 11151#endif 11152 11153 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11154 lun = ctl_softc->ctl_luns[lun_idx]; 11155 if (lun==NULL) 11156 continue; 11157 11158 /* 11159 * Processor LUNs are primary on both sides. 11160 * XXX will this always be true? 11161 */ 11162 if (lun->be_lun->lun_type == T_PROCESSOR) 11163 continue; 11164 11165 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11166 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11167 printf("FAILOVER: primary lun %d\n", lun_idx); 11168 /* 11169 * Remove all commands from the other SC. First from the 11170 * blocked queue then from the ooa queue. Once we have 11171 * removed them. Call ctl_check_blocked to see if there 11172 * is anything that can run. 11173 */ 11174 for (io = (union ctl_io *)TAILQ_FIRST( 11175 &lun->blocked_queue); io != NULL; io = next_io) { 11176 11177 next_io = (union ctl_io *)TAILQ_NEXT( 11178 &io->io_hdr, blocked_links); 11179 11180 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11181 TAILQ_REMOVE(&lun->blocked_queue, 11182 &io->io_hdr,blocked_links); 11183 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11184 TAILQ_REMOVE(&lun->ooa_queue, 11185 &io->io_hdr, ooa_links); 11186 11187 ctl_free_io(io); 11188 } 11189 } 11190 11191 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11192 io != NULL; io = next_io) { 11193 11194 next_io = (union ctl_io *)TAILQ_NEXT( 11195 &io->io_hdr, ooa_links); 11196 11197 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11198 11199 TAILQ_REMOVE(&lun->ooa_queue, 11200 &io->io_hdr, 11201 ooa_links); 11202 11203 ctl_free_io(io); 11204 } 11205 } 11206 ctl_check_blocked(lun); 11207 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11208 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11209 11210 printf("FAILOVER: primary lun %d\n", lun_idx); 11211 /* 11212 * Abort all commands from the other SC. We can't 11213 * send status back for them now. These should get 11214 * cleaned up when they are completed or come out 11215 * for a datamove operation. 11216 */ 11217 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11218 io != NULL; io = next_io) { 11219 next_io = (union ctl_io *)TAILQ_NEXT( 11220 &io->io_hdr, ooa_links); 11221 11222 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11223 io->io_hdr.flags |= CTL_FLAG_ABORT; 11224 } 11225 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11226 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11227 11228 printf("FAILOVER: secondary lun %d\n", lun_idx); 11229 11230 lun->flags |= CTL_LUN_PRIMARY_SC; 11231 11232 /* 11233 * We send all I/O that was sent to this controller 11234 * and redirected to the other side back with 11235 * busy status, and have the initiator retry it. 11236 * Figuring out how much data has been transferred, 11237 * etc. and picking up where we left off would be 11238 * very tricky. 11239 * 11240 * XXX KDM need to remove I/O from the blocked 11241 * queue as well! 11242 */ 11243 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11244 &lun->ooa_queue); pending_io != NULL; 11245 pending_io = next_io) { 11246 11247 next_io = (union ctl_io *)TAILQ_NEXT( 11248 &pending_io->io_hdr, ooa_links); 11249 11250 pending_io->io_hdr.flags &= 11251 ~CTL_FLAG_SENT_2OTHER_SC; 11252 11253 if (pending_io->io_hdr.flags & 11254 CTL_FLAG_IO_ACTIVE) { 11255 pending_io->io_hdr.flags |= 11256 CTL_FLAG_FAILOVER; 11257 } else { 11258 ctl_set_busy(&pending_io->scsiio); 11259 ctl_done(pending_io); 11260 } 11261 } 11262 11263 /* 11264 * Build Unit Attention 11265 */ 11266 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11267 lun->pending_sense[i].ua_pending |= 11268 CTL_UA_ASYM_ACC_CHANGE; 11269 } 11270 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11271 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11272 printf("FAILOVER: secondary lun %d\n", lun_idx); 11273 /* 11274 * if the first io on the OOA is not on the RtR queue 11275 * add it. 11276 */ 11277 lun->flags |= CTL_LUN_PRIMARY_SC; 11278 11279 pending_io = (union ctl_io *)TAILQ_FIRST( 11280 &lun->ooa_queue); 11281 if (pending_io==NULL) { 11282 printf("Nothing on OOA queue\n"); 11283 continue; 11284 } 11285 11286 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11287 if ((pending_io->io_hdr.flags & 11288 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11289 pending_io->io_hdr.flags |= 11290 CTL_FLAG_IS_WAS_ON_RTR; 11291 ctl_enqueue_rtr(pending_io); 11292 } 11293#if 0 11294 else 11295 { 11296 printf("Tag 0x%04x is running\n", 11297 pending_io->scsiio.tag_num); 11298 } 11299#endif 11300 11301 next_io = (union ctl_io *)TAILQ_NEXT( 11302 &pending_io->io_hdr, ooa_links); 11303 for (pending_io=next_io; pending_io != NULL; 11304 pending_io = next_io) { 11305 pending_io->io_hdr.flags &= 11306 ~CTL_FLAG_SENT_2OTHER_SC; 11307 next_io = (union ctl_io *)TAILQ_NEXT( 11308 &pending_io->io_hdr, ooa_links); 11309 if (pending_io->io_hdr.flags & 11310 CTL_FLAG_IS_WAS_ON_RTR) { 11311#if 0 11312 printf("Tag 0x%04x is running\n", 11313 pending_io->scsiio.tag_num); 11314#endif 11315 continue; 11316 } 11317 11318 switch (ctl_check_ooa(lun, pending_io, 11319 (union ctl_io *)TAILQ_PREV( 11320 &pending_io->io_hdr, ctl_ooaq, 11321 ooa_links))) { 11322 11323 case CTL_ACTION_BLOCK: 11324 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11325 &pending_io->io_hdr, 11326 blocked_links); 11327 pending_io->io_hdr.flags |= 11328 CTL_FLAG_BLOCKED; 11329 break; 11330 case CTL_ACTION_PASS: 11331 case CTL_ACTION_SKIP: 11332 pending_io->io_hdr.flags |= 11333 CTL_FLAG_IS_WAS_ON_RTR; 11334 ctl_enqueue_rtr(pending_io); 11335 break; 11336 case CTL_ACTION_OVERLAP: 11337 ctl_set_overlapped_cmd( 11338 (struct ctl_scsiio *)pending_io); 11339 ctl_done(pending_io); 11340 break; 11341 case CTL_ACTION_OVERLAP_TAG: 11342 ctl_set_overlapped_tag( 11343 (struct ctl_scsiio *)pending_io, 11344 pending_io->scsiio.tag_num & 0xff); 11345 ctl_done(pending_io); 11346 break; 11347 case CTL_ACTION_ERROR: 11348 default: 11349 ctl_set_internal_failure( 11350 (struct ctl_scsiio *)pending_io, 11351 0, // sks_valid 11352 0); //retry count 11353 ctl_done(pending_io); 11354 break; 11355 } 11356 } 11357 11358 /* 11359 * Build Unit Attention 11360 */ 11361 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11362 lun->pending_sense[i].ua_pending |= 11363 CTL_UA_ASYM_ACC_CHANGE; 11364 } 11365 } else { 11366 panic("Unhandled HA mode failover, LUN flags = %#x, " 11367 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11368 } 11369 } 11370 ctl_pause_rtr = 0; 11371 mtx_unlock(&ctl_softc->ctl_lock); 11372} 11373 11374static int 11375ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11376{ 11377 struct ctl_lun *lun; 11378 const struct ctl_cmd_entry *entry; 11379 uint32_t initidx, targ_lun; 11380 int retval; 11381 11382 retval = 0; 11383 11384 lun = NULL; 11385 11386 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11387 if ((targ_lun < CTL_MAX_LUNS) 11388 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11389 lun = ctl_softc->ctl_luns[targ_lun]; 11390 /* 11391 * If the LUN is invalid, pretend that it doesn't exist. 11392 * It will go away as soon as all pending I/O has been 11393 * completed. 11394 */ 11395 if (lun->flags & CTL_LUN_DISABLED) { 11396 lun = NULL; 11397 } else { 11398 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11399 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11400 lun->be_lun; 11401 if (lun->be_lun->lun_type == T_PROCESSOR) { 11402 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11403 } 11404 11405 /* 11406 * Every I/O goes into the OOA queue for a 11407 * particular LUN, and stays there until completion. 11408 */ 11409 mtx_lock(&lun->lun_lock); 11410 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11411 ooa_links); 11412 } 11413 } else { 11414 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11415 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11416 } 11417 11418 /* Get command entry and return error if it is unsuppotyed. */ 11419 entry = ctl_validate_command(ctsio); 11420 if (entry == NULL) { 11421 if (lun) 11422 mtx_unlock(&lun->lun_lock); 11423 return (retval); 11424 } 11425 11426 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11427 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11428 11429 /* 11430 * Check to see whether we can send this command to LUNs that don't 11431 * exist. This should pretty much only be the case for inquiry 11432 * and request sense. Further checks, below, really require having 11433 * a LUN, so we can't really check the command anymore. Just put 11434 * it on the rtr queue. 11435 */ 11436 if (lun == NULL) { 11437 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11438 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11439 ctl_enqueue_rtr((union ctl_io *)ctsio); 11440 return (retval); 11441 } 11442 11443 ctl_set_unsupported_lun(ctsio); 11444 ctl_done((union ctl_io *)ctsio); 11445 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11446 return (retval); 11447 } else { 11448 /* 11449 * Make sure we support this particular command on this LUN. 11450 * e.g., we don't support writes to the control LUN. 11451 */ 11452 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11453 mtx_unlock(&lun->lun_lock); 11454 ctl_set_invalid_opcode(ctsio); 11455 ctl_done((union ctl_io *)ctsio); 11456 return (retval); 11457 } 11458 } 11459 11460 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11461 11462 /* 11463 * If we've got a request sense, it'll clear the contingent 11464 * allegiance condition. Otherwise, if we have a CA condition for 11465 * this initiator, clear it, because it sent down a command other 11466 * than request sense. 11467 */ 11468 if ((ctsio->cdb[0] != REQUEST_SENSE) 11469 && (ctl_is_set(lun->have_ca, initidx))) 11470 ctl_clear_mask(lun->have_ca, initidx); 11471 11472 /* 11473 * If the command has this flag set, it handles its own unit 11474 * attention reporting, we shouldn't do anything. Otherwise we 11475 * check for any pending unit attentions, and send them back to the 11476 * initiator. We only do this when a command initially comes in, 11477 * not when we pull it off the blocked queue. 11478 * 11479 * According to SAM-3, section 5.3.2, the order that things get 11480 * presented back to the host is basically unit attentions caused 11481 * by some sort of reset event, busy status, reservation conflicts 11482 * or task set full, and finally any other status. 11483 * 11484 * One issue here is that some of the unit attentions we report 11485 * don't fall into the "reset" category (e.g. "reported luns data 11486 * has changed"). So reporting it here, before the reservation 11487 * check, may be technically wrong. I guess the only thing to do 11488 * would be to check for and report the reset events here, and then 11489 * check for the other unit attention types after we check for a 11490 * reservation conflict. 11491 * 11492 * XXX KDM need to fix this 11493 */ 11494 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11495 ctl_ua_type ua_type; 11496 11497 ua_type = lun->pending_sense[initidx].ua_pending; 11498 if (ua_type != CTL_UA_NONE) { 11499 scsi_sense_data_type sense_format; 11500 11501 if (lun != NULL) 11502 sense_format = (lun->flags & 11503 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11504 SSD_TYPE_FIXED; 11505 else 11506 sense_format = SSD_TYPE_FIXED; 11507 11508 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11509 sense_format); 11510 if (ua_type != CTL_UA_NONE) { 11511 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11512 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11513 CTL_AUTOSENSE; 11514 ctsio->sense_len = SSD_FULL_SIZE; 11515 lun->pending_sense[initidx].ua_pending &= 11516 ~ua_type; 11517 mtx_unlock(&lun->lun_lock); 11518 ctl_done((union ctl_io *)ctsio); 11519 return (retval); 11520 } 11521 } 11522 } 11523 11524 11525 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11526 mtx_unlock(&lun->lun_lock); 11527 ctl_done((union ctl_io *)ctsio); 11528 return (retval); 11529 } 11530 11531 /* 11532 * XXX CHD this is where we want to send IO to other side if 11533 * this LUN is secondary on this SC. We will need to make a copy 11534 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11535 * the copy we send as FROM_OTHER. 11536 * We also need to stuff the address of the original IO so we can 11537 * find it easily. Something similar will need be done on the other 11538 * side so when we are done we can find the copy. 11539 */ 11540 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11541 union ctl_ha_msg msg_info; 11542 int isc_retval; 11543 11544 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11545 11546 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11547 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11548#if 0 11549 printf("1. ctsio %p\n", ctsio); 11550#endif 11551 msg_info.hdr.serializing_sc = NULL; 11552 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11553 msg_info.scsi.tag_num = ctsio->tag_num; 11554 msg_info.scsi.tag_type = ctsio->tag_type; 11555 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11556 11557 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11558 11559 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11560 (void *)&msg_info, sizeof(msg_info), 0)) > 11561 CTL_HA_STATUS_SUCCESS) { 11562 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11563 isc_retval); 11564 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11565 } else { 11566#if 0 11567 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11568#endif 11569 } 11570 11571 /* 11572 * XXX KDM this I/O is off the incoming queue, but hasn't 11573 * been inserted on any other queue. We may need to come 11574 * up with a holding queue while we wait for serialization 11575 * so that we have an idea of what we're waiting for from 11576 * the other side. 11577 */ 11578 mtx_unlock(&lun->lun_lock); 11579 return (retval); 11580 } 11581 11582 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11583 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11584 ctl_ooaq, ooa_links))) { 11585 case CTL_ACTION_BLOCK: 11586 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11587 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11588 blocked_links); 11589 mtx_unlock(&lun->lun_lock); 11590 return (retval); 11591 case CTL_ACTION_PASS: 11592 case CTL_ACTION_SKIP: 11593 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11594 mtx_unlock(&lun->lun_lock); 11595 ctl_enqueue_rtr((union ctl_io *)ctsio); 11596 break; 11597 case CTL_ACTION_OVERLAP: 11598 mtx_unlock(&lun->lun_lock); 11599 ctl_set_overlapped_cmd(ctsio); 11600 ctl_done((union ctl_io *)ctsio); 11601 break; 11602 case CTL_ACTION_OVERLAP_TAG: 11603 mtx_unlock(&lun->lun_lock); 11604 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11605 ctl_done((union ctl_io *)ctsio); 11606 break; 11607 case CTL_ACTION_ERROR: 11608 default: 11609 mtx_unlock(&lun->lun_lock); 11610 ctl_set_internal_failure(ctsio, 11611 /*sks_valid*/ 0, 11612 /*retry_count*/ 0); 11613 ctl_done((union ctl_io *)ctsio); 11614 break; 11615 } 11616 return (retval); 11617} 11618 11619const struct ctl_cmd_entry * 11620ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11621{ 11622 const struct ctl_cmd_entry *entry; 11623 int service_action; 11624 11625 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11626 if (entry->flags & CTL_CMD_FLAG_SA5) { 11627 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11628 entry = &((const struct ctl_cmd_entry *) 11629 entry->execute)[service_action]; 11630 } 11631 return (entry); 11632} 11633 11634const struct ctl_cmd_entry * 11635ctl_validate_command(struct ctl_scsiio *ctsio) 11636{ 11637 const struct ctl_cmd_entry *entry; 11638 int i; 11639 uint8_t diff; 11640 11641 entry = ctl_get_cmd_entry(ctsio); 11642 if (entry->execute == NULL) { 11643 ctl_set_invalid_opcode(ctsio); 11644 ctl_done((union ctl_io *)ctsio); 11645 return (NULL); 11646 } 11647 KASSERT(entry->length > 0, 11648 ("Not defined length for command 0x%02x/0x%02x", 11649 ctsio->cdb[0], ctsio->cdb[1])); 11650 for (i = 1; i < entry->length; i++) { 11651 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11652 if (diff == 0) 11653 continue; 11654 ctl_set_invalid_field(ctsio, 11655 /*sks_valid*/ 1, 11656 /*command*/ 1, 11657 /*field*/ i, 11658 /*bit_valid*/ 1, 11659 /*bit*/ fls(diff) - 1); 11660 ctl_done((union ctl_io *)ctsio); 11661 return (NULL); 11662 } 11663 return (entry); 11664} 11665 11666static int 11667ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11668{ 11669 11670 switch (lun_type) { 11671 case T_PROCESSOR: 11672 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11673 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11674 return (0); 11675 break; 11676 case T_DIRECT: 11677 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11678 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11679 return (0); 11680 break; 11681 default: 11682 return (0); 11683 } 11684 return (1); 11685} 11686 11687static int 11688ctl_scsiio(struct ctl_scsiio *ctsio) 11689{ 11690 int retval; 11691 const struct ctl_cmd_entry *entry; 11692 11693 retval = CTL_RETVAL_COMPLETE; 11694 11695 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11696 11697 entry = ctl_get_cmd_entry(ctsio); 11698 11699 /* 11700 * If this I/O has been aborted, just send it straight to 11701 * ctl_done() without executing it. 11702 */ 11703 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11704 ctl_done((union ctl_io *)ctsio); 11705 goto bailout; 11706 } 11707 11708 /* 11709 * All the checks should have been handled by ctl_scsiio_precheck(). 11710 * We should be clear now to just execute the I/O. 11711 */ 11712 retval = entry->execute(ctsio); 11713 11714bailout: 11715 return (retval); 11716} 11717 11718/* 11719 * Since we only implement one target right now, a bus reset simply resets 11720 * our single target. 11721 */ 11722static int 11723ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11724{ 11725 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11726} 11727 11728static int 11729ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11730 ctl_ua_type ua_type) 11731{ 11732 struct ctl_lun *lun; 11733 int retval; 11734 11735 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11736 union ctl_ha_msg msg_info; 11737 11738 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11739 msg_info.hdr.nexus = io->io_hdr.nexus; 11740 if (ua_type==CTL_UA_TARG_RESET) 11741 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11742 else 11743 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11744 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11745 msg_info.hdr.original_sc = NULL; 11746 msg_info.hdr.serializing_sc = NULL; 11747 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11748 (void *)&msg_info, sizeof(msg_info), 0)) { 11749 } 11750 } 11751 retval = 0; 11752 11753 mtx_lock(&ctl_softc->ctl_lock); 11754 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11755 retval += ctl_lun_reset(lun, io, ua_type); 11756 mtx_unlock(&ctl_softc->ctl_lock); 11757 11758 return (retval); 11759} 11760 11761/* 11762 * The LUN should always be set. The I/O is optional, and is used to 11763 * distinguish between I/Os sent by this initiator, and by other 11764 * initiators. We set unit attention for initiators other than this one. 11765 * SAM-3 is vague on this point. It does say that a unit attention should 11766 * be established for other initiators when a LUN is reset (see section 11767 * 5.7.3), but it doesn't specifically say that the unit attention should 11768 * be established for this particular initiator when a LUN is reset. Here 11769 * is the relevant text, from SAM-3 rev 8: 11770 * 11771 * 5.7.2 When a SCSI initiator port aborts its own tasks 11772 * 11773 * When a SCSI initiator port causes its own task(s) to be aborted, no 11774 * notification that the task(s) have been aborted shall be returned to 11775 * the SCSI initiator port other than the completion response for the 11776 * command or task management function action that caused the task(s) to 11777 * be aborted and notification(s) associated with related effects of the 11778 * action (e.g., a reset unit attention condition). 11779 * 11780 * XXX KDM for now, we're setting unit attention for all initiators. 11781 */ 11782static int 11783ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11784{ 11785 union ctl_io *xio; 11786#if 0 11787 uint32_t initindex; 11788#endif 11789 int i; 11790 11791 mtx_lock(&lun->lun_lock); 11792 /* 11793 * Run through the OOA queue and abort each I/O. 11794 */ 11795#if 0 11796 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11797#endif 11798 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11799 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11800 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11801 } 11802 11803 /* 11804 * This version sets unit attention for every 11805 */ 11806#if 0 11807 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11808 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11809 if (initindex == i) 11810 continue; 11811 lun->pending_sense[i].ua_pending |= ua_type; 11812 } 11813#endif 11814 11815 /* 11816 * A reset (any kind, really) clears reservations established with 11817 * RESERVE/RELEASE. It does not clear reservations established 11818 * with PERSISTENT RESERVE OUT, but we don't support that at the 11819 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11820 * reservations made with the RESERVE/RELEASE commands, because 11821 * those commands are obsolete in SPC-3. 11822 */ 11823 lun->flags &= ~CTL_LUN_RESERVED; 11824 11825 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11826 ctl_clear_mask(lun->have_ca, i); 11827 lun->pending_sense[i].ua_pending |= ua_type; 11828 } 11829 mtx_unlock(&lun->lun_lock); 11830 11831 return (0); 11832} 11833 11834static int 11835ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11836 int other_sc) 11837{ 11838 union ctl_io *xio; 11839 int found; 11840 11841 mtx_assert(&lun->lun_lock, MA_OWNED); 11842 11843 /* 11844 * Run through the OOA queue and attempt to find the given I/O. 11845 * The target port, initiator ID, tag type and tag number have to 11846 * match the values that we got from the initiator. If we have an 11847 * untagged command to abort, simply abort the first untagged command 11848 * we come to. We only allow one untagged command at a time of course. 11849 */ 11850 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11851 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11852 11853 if ((targ_port == UINT32_MAX || 11854 targ_port == xio->io_hdr.nexus.targ_port) && 11855 (init_id == UINT32_MAX || 11856 init_id == xio->io_hdr.nexus.initid.id)) { 11857 if (targ_port != xio->io_hdr.nexus.targ_port || 11858 init_id != xio->io_hdr.nexus.initid.id) 11859 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11860 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11861 found = 1; 11862 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11863 union ctl_ha_msg msg_info; 11864 11865 msg_info.hdr.nexus = xio->io_hdr.nexus; 11866 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11867 msg_info.task.tag_num = xio->scsiio.tag_num; 11868 msg_info.task.tag_type = xio->scsiio.tag_type; 11869 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11870 msg_info.hdr.original_sc = NULL; 11871 msg_info.hdr.serializing_sc = NULL; 11872 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11873 (void *)&msg_info, sizeof(msg_info), 0); 11874 } 11875 } 11876 } 11877 return (found); 11878} 11879 11880static int 11881ctl_abort_task_set(union ctl_io *io) 11882{ 11883 struct ctl_softc *softc = control_softc; 11884 struct ctl_lun *lun; 11885 uint32_t targ_lun; 11886 11887 /* 11888 * Look up the LUN. 11889 */ 11890 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11891 mtx_lock(&softc->ctl_lock); 11892 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11893 lun = softc->ctl_luns[targ_lun]; 11894 else { 11895 mtx_unlock(&softc->ctl_lock); 11896 return (1); 11897 } 11898 11899 mtx_lock(&lun->lun_lock); 11900 mtx_unlock(&softc->ctl_lock); 11901 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11902 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11903 io->io_hdr.nexus.initid.id, 11904 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11905 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11906 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11907 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11908 } 11909 mtx_unlock(&lun->lun_lock); 11910 return (0); 11911} 11912 11913static int 11914ctl_i_t_nexus_reset(union ctl_io *io) 11915{ 11916 struct ctl_softc *softc = control_softc; 11917 struct ctl_lun *lun; 11918 uint32_t initindex; 11919 11920 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11921 mtx_lock(&softc->ctl_lock); 11922 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11923 mtx_lock(&lun->lun_lock); 11924 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11925 io->io_hdr.nexus.initid.id, 11926 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11927 ctl_clear_mask(lun->have_ca, initindex); 11928 lun->pending_sense[initindex].ua_pending |= CTL_UA_I_T_NEXUS_LOSS; 11929 mtx_unlock(&lun->lun_lock); 11930 } 11931 mtx_unlock(&softc->ctl_lock); 11932 return (0); 11933} 11934 11935static int 11936ctl_abort_task(union ctl_io *io) 11937{ 11938 union ctl_io *xio; 11939 struct ctl_lun *lun; 11940 struct ctl_softc *ctl_softc; 11941#if 0 11942 struct sbuf sb; 11943 char printbuf[128]; 11944#endif 11945 int found; 11946 uint32_t targ_lun; 11947 11948 ctl_softc = control_softc; 11949 found = 0; 11950 11951 /* 11952 * Look up the LUN. 11953 */ 11954 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11955 mtx_lock(&ctl_softc->ctl_lock); 11956 if ((targ_lun < CTL_MAX_LUNS) 11957 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11958 lun = ctl_softc->ctl_luns[targ_lun]; 11959 else { 11960 mtx_unlock(&ctl_softc->ctl_lock); 11961 return (1); 11962 } 11963 11964#if 0 11965 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11966 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11967#endif 11968 11969 mtx_lock(&lun->lun_lock); 11970 mtx_unlock(&ctl_softc->ctl_lock); 11971 /* 11972 * Run through the OOA queue and attempt to find the given I/O. 11973 * The target port, initiator ID, tag type and tag number have to 11974 * match the values that we got from the initiator. If we have an 11975 * untagged command to abort, simply abort the first untagged command 11976 * we come to. We only allow one untagged command at a time of course. 11977 */ 11978#if 0 11979 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11980#endif 11981 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11982 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11983#if 0 11984 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11985 11986 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11987 lun->lun, xio->scsiio.tag_num, 11988 xio->scsiio.tag_type, 11989 (xio->io_hdr.blocked_links.tqe_prev 11990 == NULL) ? "" : " BLOCKED", 11991 (xio->io_hdr.flags & 11992 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11993 (xio->io_hdr.flags & 11994 CTL_FLAG_ABORT) ? " ABORT" : "", 11995 (xio->io_hdr.flags & 11996 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11997 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11998 sbuf_finish(&sb); 11999 printf("%s\n", sbuf_data(&sb)); 12000#endif 12001 12002 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12003 && (xio->io_hdr.nexus.initid.id == 12004 io->io_hdr.nexus.initid.id)) { 12005 /* 12006 * If the abort says that the task is untagged, the 12007 * task in the queue must be untagged. Otherwise, 12008 * we just check to see whether the tag numbers 12009 * match. This is because the QLogic firmware 12010 * doesn't pass back the tag type in an abort 12011 * request. 12012 */ 12013#if 0 12014 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12015 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12016 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12017#endif 12018 /* 12019 * XXX KDM we've got problems with FC, because it 12020 * doesn't send down a tag type with aborts. So we 12021 * can only really go by the tag number... 12022 * This may cause problems with parallel SCSI. 12023 * Need to figure that out!! 12024 */ 12025 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12026 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12027 found = 1; 12028 if ((io->io_hdr.flags & 12029 CTL_FLAG_FROM_OTHER_SC) == 0 && 12030 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12031 union ctl_ha_msg msg_info; 12032 12033 io->io_hdr.flags |= 12034 CTL_FLAG_SENT_2OTHER_SC; 12035 msg_info.hdr.nexus = io->io_hdr.nexus; 12036 msg_info.task.task_action = 12037 CTL_TASK_ABORT_TASK; 12038 msg_info.task.tag_num = 12039 io->taskio.tag_num; 12040 msg_info.task.tag_type = 12041 io->taskio.tag_type; 12042 msg_info.hdr.msg_type = 12043 CTL_MSG_MANAGE_TASKS; 12044 msg_info.hdr.original_sc = NULL; 12045 msg_info.hdr.serializing_sc = NULL; 12046#if 0 12047 printf("Sent Abort to other side\n"); 12048#endif 12049 if (CTL_HA_STATUS_SUCCESS != 12050 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12051 (void *)&msg_info, 12052 sizeof(msg_info), 0)) { 12053 } 12054 } 12055#if 0 12056 printf("ctl_abort_task: found I/O to abort\n"); 12057#endif 12058 break; 12059 } 12060 } 12061 } 12062 mtx_unlock(&lun->lun_lock); 12063 12064 if (found == 0) { 12065 /* 12066 * This isn't really an error. It's entirely possible for 12067 * the abort and command completion to cross on the wire. 12068 * This is more of an informative/diagnostic error. 12069 */ 12070#if 0 12071 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12072 "%d:%d:%d:%d tag %d type %d\n", 12073 io->io_hdr.nexus.initid.id, 12074 io->io_hdr.nexus.targ_port, 12075 io->io_hdr.nexus.targ_target.id, 12076 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12077 io->taskio.tag_type); 12078#endif 12079 } 12080 return (0); 12081} 12082 12083static void 12084ctl_run_task(union ctl_io *io) 12085{ 12086 struct ctl_softc *ctl_softc = control_softc; 12087 int retval = 1; 12088 const char *task_desc; 12089 12090 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12091 12092 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12093 ("ctl_run_task: Unextected io_type %d\n", 12094 io->io_hdr.io_type)); 12095 12096 task_desc = ctl_scsi_task_string(&io->taskio); 12097 if (task_desc != NULL) { 12098#ifdef NEEDTOPORT 12099 csevent_log(CSC_CTL | CSC_SHELF_SW | 12100 CTL_TASK_REPORT, 12101 csevent_LogType_Trace, 12102 csevent_Severity_Information, 12103 csevent_AlertLevel_Green, 12104 csevent_FRU_Firmware, 12105 csevent_FRU_Unknown, 12106 "CTL: received task: %s",task_desc); 12107#endif 12108 } else { 12109#ifdef NEEDTOPORT 12110 csevent_log(CSC_CTL | CSC_SHELF_SW | 12111 CTL_TASK_REPORT, 12112 csevent_LogType_Trace, 12113 csevent_Severity_Information, 12114 csevent_AlertLevel_Green, 12115 csevent_FRU_Firmware, 12116 csevent_FRU_Unknown, 12117 "CTL: received unknown task " 12118 "type: %d (%#x)", 12119 io->taskio.task_action, 12120 io->taskio.task_action); 12121#endif 12122 } 12123 switch (io->taskio.task_action) { 12124 case CTL_TASK_ABORT_TASK: 12125 retval = ctl_abort_task(io); 12126 break; 12127 case CTL_TASK_ABORT_TASK_SET: 12128 case CTL_TASK_CLEAR_TASK_SET: 12129 retval = ctl_abort_task_set(io); 12130 break; 12131 case CTL_TASK_CLEAR_ACA: 12132 break; 12133 case CTL_TASK_I_T_NEXUS_RESET: 12134 retval = ctl_i_t_nexus_reset(io); 12135 break; 12136 case CTL_TASK_LUN_RESET: { 12137 struct ctl_lun *lun; 12138 uint32_t targ_lun; 12139 12140 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12141 mtx_lock(&ctl_softc->ctl_lock); 12142 if ((targ_lun < CTL_MAX_LUNS) 12143 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12144 lun = ctl_softc->ctl_luns[targ_lun]; 12145 else { 12146 mtx_unlock(&ctl_softc->ctl_lock); 12147 retval = 1; 12148 break; 12149 } 12150 12151 if (!(io->io_hdr.flags & 12152 CTL_FLAG_FROM_OTHER_SC)) { 12153 union ctl_ha_msg msg_info; 12154 12155 io->io_hdr.flags |= 12156 CTL_FLAG_SENT_2OTHER_SC; 12157 msg_info.hdr.msg_type = 12158 CTL_MSG_MANAGE_TASKS; 12159 msg_info.hdr.nexus = io->io_hdr.nexus; 12160 msg_info.task.task_action = 12161 CTL_TASK_LUN_RESET; 12162 msg_info.hdr.original_sc = NULL; 12163 msg_info.hdr.serializing_sc = NULL; 12164 if (CTL_HA_STATUS_SUCCESS != 12165 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12166 (void *)&msg_info, 12167 sizeof(msg_info), 0)) { 12168 } 12169 } 12170 12171 retval = ctl_lun_reset(lun, io, 12172 CTL_UA_LUN_RESET); 12173 mtx_unlock(&ctl_softc->ctl_lock); 12174 break; 12175 } 12176 case CTL_TASK_TARGET_RESET: 12177 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12178 break; 12179 case CTL_TASK_BUS_RESET: 12180 retval = ctl_bus_reset(ctl_softc, io); 12181 break; 12182 case CTL_TASK_PORT_LOGIN: 12183 break; 12184 case CTL_TASK_PORT_LOGOUT: 12185 break; 12186 default: 12187 printf("ctl_run_task: got unknown task management event %d\n", 12188 io->taskio.task_action); 12189 break; 12190 } 12191 if (retval == 0) 12192 io->io_hdr.status = CTL_SUCCESS; 12193 else 12194 io->io_hdr.status = CTL_ERROR; 12195 ctl_done(io); 12196} 12197 12198/* 12199 * For HA operation. Handle commands that come in from the other 12200 * controller. 12201 */ 12202static void 12203ctl_handle_isc(union ctl_io *io) 12204{ 12205 int free_io; 12206 struct ctl_lun *lun; 12207 struct ctl_softc *ctl_softc; 12208 uint32_t targ_lun; 12209 12210 ctl_softc = control_softc; 12211 12212 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12213 lun = ctl_softc->ctl_luns[targ_lun]; 12214 12215 switch (io->io_hdr.msg_type) { 12216 case CTL_MSG_SERIALIZE: 12217 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12218 break; 12219 case CTL_MSG_R2R: { 12220 const struct ctl_cmd_entry *entry; 12221 12222 /* 12223 * This is only used in SER_ONLY mode. 12224 */ 12225 free_io = 0; 12226 entry = ctl_get_cmd_entry(&io->scsiio); 12227 mtx_lock(&lun->lun_lock); 12228 if (ctl_scsiio_lun_check(ctl_softc, lun, 12229 entry, (struct ctl_scsiio *)io) != 0) { 12230 mtx_unlock(&lun->lun_lock); 12231 ctl_done(io); 12232 break; 12233 } 12234 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12235 mtx_unlock(&lun->lun_lock); 12236 ctl_enqueue_rtr(io); 12237 break; 12238 } 12239 case CTL_MSG_FINISH_IO: 12240 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12241 free_io = 0; 12242 ctl_done(io); 12243 } else { 12244 free_io = 1; 12245 mtx_lock(&lun->lun_lock); 12246 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12247 ooa_links); 12248 ctl_check_blocked(lun); 12249 mtx_unlock(&lun->lun_lock); 12250 } 12251 break; 12252 case CTL_MSG_PERS_ACTION: 12253 ctl_hndl_per_res_out_on_other_sc( 12254 (union ctl_ha_msg *)&io->presio.pr_msg); 12255 free_io = 1; 12256 break; 12257 case CTL_MSG_BAD_JUJU: 12258 free_io = 0; 12259 ctl_done(io); 12260 break; 12261 case CTL_MSG_DATAMOVE: 12262 /* Only used in XFER mode */ 12263 free_io = 0; 12264 ctl_datamove_remote(io); 12265 break; 12266 case CTL_MSG_DATAMOVE_DONE: 12267 /* Only used in XFER mode */ 12268 free_io = 0; 12269 io->scsiio.be_move_done(io); 12270 break; 12271 default: 12272 free_io = 1; 12273 printf("%s: Invalid message type %d\n", 12274 __func__, io->io_hdr.msg_type); 12275 break; 12276 } 12277 if (free_io) 12278 ctl_free_io(io); 12279 12280} 12281 12282 12283/* 12284 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12285 * there is no match. 12286 */ 12287static ctl_lun_error_pattern 12288ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12289{ 12290 const struct ctl_cmd_entry *entry; 12291 ctl_lun_error_pattern filtered_pattern, pattern; 12292 12293 pattern = desc->error_pattern; 12294 12295 /* 12296 * XXX KDM we need more data passed into this function to match a 12297 * custom pattern, and we actually need to implement custom pattern 12298 * matching. 12299 */ 12300 if (pattern & CTL_LUN_PAT_CMD) 12301 return (CTL_LUN_PAT_CMD); 12302 12303 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12304 return (CTL_LUN_PAT_ANY); 12305 12306 entry = ctl_get_cmd_entry(ctsio); 12307 12308 filtered_pattern = entry->pattern & pattern; 12309 12310 /* 12311 * If the user requested specific flags in the pattern (e.g. 12312 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12313 * flags. 12314 * 12315 * If the user did not specify any flags, it doesn't matter whether 12316 * or not the command supports the flags. 12317 */ 12318 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12319 (pattern & ~CTL_LUN_PAT_MASK)) 12320 return (CTL_LUN_PAT_NONE); 12321 12322 /* 12323 * If the user asked for a range check, see if the requested LBA 12324 * range overlaps with this command's LBA range. 12325 */ 12326 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12327 uint64_t lba1; 12328 uint32_t len1; 12329 ctl_action action; 12330 int retval; 12331 12332 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12333 if (retval != 0) 12334 return (CTL_LUN_PAT_NONE); 12335 12336 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12337 desc->lba_range.len); 12338 /* 12339 * A "pass" means that the LBA ranges don't overlap, so 12340 * this doesn't match the user's range criteria. 12341 */ 12342 if (action == CTL_ACTION_PASS) 12343 return (CTL_LUN_PAT_NONE); 12344 } 12345 12346 return (filtered_pattern); 12347} 12348 12349static void 12350ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12351{ 12352 struct ctl_error_desc *desc, *desc2; 12353 12354 mtx_assert(&lun->lun_lock, MA_OWNED); 12355 12356 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12357 ctl_lun_error_pattern pattern; 12358 /* 12359 * Check to see whether this particular command matches 12360 * the pattern in the descriptor. 12361 */ 12362 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12363 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12364 continue; 12365 12366 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12367 case CTL_LUN_INJ_ABORTED: 12368 ctl_set_aborted(&io->scsiio); 12369 break; 12370 case CTL_LUN_INJ_MEDIUM_ERR: 12371 ctl_set_medium_error(&io->scsiio); 12372 break; 12373 case CTL_LUN_INJ_UA: 12374 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12375 * OCCURRED */ 12376 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12377 break; 12378 case CTL_LUN_INJ_CUSTOM: 12379 /* 12380 * We're assuming the user knows what he is doing. 12381 * Just copy the sense information without doing 12382 * checks. 12383 */ 12384 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12385 ctl_min(sizeof(desc->custom_sense), 12386 sizeof(io->scsiio.sense_data))); 12387 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12388 io->scsiio.sense_len = SSD_FULL_SIZE; 12389 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12390 break; 12391 case CTL_LUN_INJ_NONE: 12392 default: 12393 /* 12394 * If this is an error injection type we don't know 12395 * about, clear the continuous flag (if it is set) 12396 * so it will get deleted below. 12397 */ 12398 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12399 break; 12400 } 12401 /* 12402 * By default, each error injection action is a one-shot 12403 */ 12404 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12405 continue; 12406 12407 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12408 12409 free(desc, M_CTL); 12410 } 12411} 12412 12413#ifdef CTL_IO_DELAY 12414static void 12415ctl_datamove_timer_wakeup(void *arg) 12416{ 12417 union ctl_io *io; 12418 12419 io = (union ctl_io *)arg; 12420 12421 ctl_datamove(io); 12422} 12423#endif /* CTL_IO_DELAY */ 12424 12425void 12426ctl_datamove(union ctl_io *io) 12427{ 12428 void (*fe_datamove)(union ctl_io *io); 12429 12430 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12431 12432 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12433 12434#ifdef CTL_TIME_IO 12435 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12436 char str[256]; 12437 char path_str[64]; 12438 struct sbuf sb; 12439 12440 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12441 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12442 12443 sbuf_cat(&sb, path_str); 12444 switch (io->io_hdr.io_type) { 12445 case CTL_IO_SCSI: 12446 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12447 sbuf_printf(&sb, "\n"); 12448 sbuf_cat(&sb, path_str); 12449 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12450 io->scsiio.tag_num, io->scsiio.tag_type); 12451 break; 12452 case CTL_IO_TASK: 12453 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12454 "Tag Type: %d\n", io->taskio.task_action, 12455 io->taskio.tag_num, io->taskio.tag_type); 12456 break; 12457 default: 12458 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12459 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12460 break; 12461 } 12462 sbuf_cat(&sb, path_str); 12463 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12464 (intmax_t)time_uptime - io->io_hdr.start_time); 12465 sbuf_finish(&sb); 12466 printf("%s", sbuf_data(&sb)); 12467 } 12468#endif /* CTL_TIME_IO */ 12469 12470#ifdef CTL_IO_DELAY 12471 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12472 struct ctl_lun *lun; 12473 12474 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12475 12476 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12477 } else { 12478 struct ctl_lun *lun; 12479 12480 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12481 if ((lun != NULL) 12482 && (lun->delay_info.datamove_delay > 0)) { 12483 struct callout *callout; 12484 12485 callout = (struct callout *)&io->io_hdr.timer_bytes; 12486 callout_init(callout, /*mpsafe*/ 1); 12487 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12488 callout_reset(callout, 12489 lun->delay_info.datamove_delay * hz, 12490 ctl_datamove_timer_wakeup, io); 12491 if (lun->delay_info.datamove_type == 12492 CTL_DELAY_TYPE_ONESHOT) 12493 lun->delay_info.datamove_delay = 0; 12494 return; 12495 } 12496 } 12497#endif 12498 12499 /* 12500 * This command has been aborted. Set the port status, so we fail 12501 * the data move. 12502 */ 12503 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12504 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12505 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12506 io->io_hdr.nexus.targ_port, 12507 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12508 io->io_hdr.nexus.targ_lun); 12509 io->io_hdr.port_status = 31337; 12510 /* 12511 * Note that the backend, in this case, will get the 12512 * callback in its context. In other cases it may get 12513 * called in the frontend's interrupt thread context. 12514 */ 12515 io->scsiio.be_move_done(io); 12516 return; 12517 } 12518 12519 /* 12520 * If we're in XFER mode and this I/O is from the other shelf 12521 * controller, we need to send the DMA to the other side to 12522 * actually transfer the data to/from the host. In serialize only 12523 * mode the transfer happens below CTL and ctl_datamove() is only 12524 * called on the machine that originally received the I/O. 12525 */ 12526 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12527 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12528 union ctl_ha_msg msg; 12529 uint32_t sg_entries_sent; 12530 int do_sg_copy; 12531 int i; 12532 12533 memset(&msg, 0, sizeof(msg)); 12534 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12535 msg.hdr.original_sc = io->io_hdr.original_sc; 12536 msg.hdr.serializing_sc = io; 12537 msg.hdr.nexus = io->io_hdr.nexus; 12538 msg.dt.flags = io->io_hdr.flags; 12539 /* 12540 * We convert everything into a S/G list here. We can't 12541 * pass by reference, only by value between controllers. 12542 * So we can't pass a pointer to the S/G list, only as many 12543 * S/G entries as we can fit in here. If it's possible for 12544 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12545 * then we need to break this up into multiple transfers. 12546 */ 12547 if (io->scsiio.kern_sg_entries == 0) { 12548 msg.dt.kern_sg_entries = 1; 12549 /* 12550 * If this is in cached memory, flush the cache 12551 * before we send the DMA request to the other 12552 * controller. We want to do this in either the 12553 * read or the write case. The read case is 12554 * straightforward. In the write case, we want to 12555 * make sure nothing is in the local cache that 12556 * could overwrite the DMAed data. 12557 */ 12558 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12559 /* 12560 * XXX KDM use bus_dmamap_sync() here. 12561 */ 12562 } 12563 12564 /* 12565 * Convert to a physical address if this is a 12566 * virtual address. 12567 */ 12568 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12569 msg.dt.sg_list[0].addr = 12570 io->scsiio.kern_data_ptr; 12571 } else { 12572 /* 12573 * XXX KDM use busdma here! 12574 */ 12575#if 0 12576 msg.dt.sg_list[0].addr = (void *) 12577 vtophys(io->scsiio.kern_data_ptr); 12578#endif 12579 } 12580 12581 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12582 do_sg_copy = 0; 12583 } else { 12584 struct ctl_sg_entry *sgl; 12585 12586 do_sg_copy = 1; 12587 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12588 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12589 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12590 /* 12591 * XXX KDM use bus_dmamap_sync() here. 12592 */ 12593 } 12594 } 12595 12596 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12597 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12598 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12599 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12600 msg.dt.sg_sequence = 0; 12601 12602 /* 12603 * Loop until we've sent all of the S/G entries. On the 12604 * other end, we'll recompose these S/G entries into one 12605 * contiguous list before passing it to the 12606 */ 12607 for (sg_entries_sent = 0; sg_entries_sent < 12608 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12609 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12610 sizeof(msg.dt.sg_list[0])), 12611 msg.dt.kern_sg_entries - sg_entries_sent); 12612 12613 if (do_sg_copy != 0) { 12614 struct ctl_sg_entry *sgl; 12615 int j; 12616 12617 sgl = (struct ctl_sg_entry *) 12618 io->scsiio.kern_data_ptr; 12619 /* 12620 * If this is in cached memory, flush the cache 12621 * before we send the DMA request to the other 12622 * controller. We want to do this in either 12623 * the * read or the write case. The read 12624 * case is straightforward. In the write 12625 * case, we want to make sure nothing is 12626 * in the local cache that could overwrite 12627 * the DMAed data. 12628 */ 12629 12630 for (i = sg_entries_sent, j = 0; 12631 i < msg.dt.cur_sg_entries; i++, j++) { 12632 if ((io->io_hdr.flags & 12633 CTL_FLAG_NO_DATASYNC) == 0) { 12634 /* 12635 * XXX KDM use bus_dmamap_sync() 12636 */ 12637 } 12638 if ((io->io_hdr.flags & 12639 CTL_FLAG_BUS_ADDR) == 0) { 12640 /* 12641 * XXX KDM use busdma. 12642 */ 12643#if 0 12644 msg.dt.sg_list[j].addr =(void *) 12645 vtophys(sgl[i].addr); 12646#endif 12647 } else { 12648 msg.dt.sg_list[j].addr = 12649 sgl[i].addr; 12650 } 12651 msg.dt.sg_list[j].len = sgl[i].len; 12652 } 12653 } 12654 12655 sg_entries_sent += msg.dt.cur_sg_entries; 12656 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12657 msg.dt.sg_last = 1; 12658 else 12659 msg.dt.sg_last = 0; 12660 12661 /* 12662 * XXX KDM drop and reacquire the lock here? 12663 */ 12664 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12665 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12666 /* 12667 * XXX do something here. 12668 */ 12669 } 12670 12671 msg.dt.sent_sg_entries = sg_entries_sent; 12672 } 12673 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12674 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12675 ctl_failover_io(io, /*have_lock*/ 0); 12676 12677 } else { 12678 12679 /* 12680 * Lookup the fe_datamove() function for this particular 12681 * front end. 12682 */ 12683 fe_datamove = 12684 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12685 12686 fe_datamove(io); 12687 } 12688} 12689 12690static void 12691ctl_send_datamove_done(union ctl_io *io, int have_lock) 12692{ 12693 union ctl_ha_msg msg; 12694 int isc_status; 12695 12696 memset(&msg, 0, sizeof(msg)); 12697 12698 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12699 msg.hdr.original_sc = io; 12700 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12701 msg.hdr.nexus = io->io_hdr.nexus; 12702 msg.hdr.status = io->io_hdr.status; 12703 msg.scsi.tag_num = io->scsiio.tag_num; 12704 msg.scsi.tag_type = io->scsiio.tag_type; 12705 msg.scsi.scsi_status = io->scsiio.scsi_status; 12706 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12707 sizeof(io->scsiio.sense_data)); 12708 msg.scsi.sense_len = io->scsiio.sense_len; 12709 msg.scsi.sense_residual = io->scsiio.sense_residual; 12710 msg.scsi.fetd_status = io->io_hdr.port_status; 12711 msg.scsi.residual = io->scsiio.residual; 12712 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12713 12714 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12715 ctl_failover_io(io, /*have_lock*/ have_lock); 12716 return; 12717 } 12718 12719 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12720 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12721 /* XXX do something if this fails */ 12722 } 12723 12724} 12725 12726/* 12727 * The DMA to the remote side is done, now we need to tell the other side 12728 * we're done so it can continue with its data movement. 12729 */ 12730static void 12731ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12732{ 12733 union ctl_io *io; 12734 12735 io = rq->context; 12736 12737 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12738 printf("%s: ISC DMA write failed with error %d", __func__, 12739 rq->ret); 12740 ctl_set_internal_failure(&io->scsiio, 12741 /*sks_valid*/ 1, 12742 /*retry_count*/ rq->ret); 12743 } 12744 12745 ctl_dt_req_free(rq); 12746 12747 /* 12748 * In this case, we had to malloc the memory locally. Free it. 12749 */ 12750 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12751 int i; 12752 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12753 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12754 } 12755 /* 12756 * The data is in local and remote memory, so now we need to send 12757 * status (good or back) back to the other side. 12758 */ 12759 ctl_send_datamove_done(io, /*have_lock*/ 0); 12760} 12761 12762/* 12763 * We've moved the data from the host/controller into local memory. Now we 12764 * need to push it over to the remote controller's memory. 12765 */ 12766static int 12767ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12768{ 12769 int retval; 12770 12771 retval = 0; 12772 12773 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12774 ctl_datamove_remote_write_cb); 12775 12776 return (retval); 12777} 12778 12779static void 12780ctl_datamove_remote_write(union ctl_io *io) 12781{ 12782 int retval; 12783 void (*fe_datamove)(union ctl_io *io); 12784 12785 /* 12786 * - Get the data from the host/HBA into local memory. 12787 * - DMA memory from the local controller to the remote controller. 12788 * - Send status back to the remote controller. 12789 */ 12790 12791 retval = ctl_datamove_remote_sgl_setup(io); 12792 if (retval != 0) 12793 return; 12794 12795 /* Switch the pointer over so the FETD knows what to do */ 12796 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12797 12798 /* 12799 * Use a custom move done callback, since we need to send completion 12800 * back to the other controller, not to the backend on this side. 12801 */ 12802 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12803 12804 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12805 12806 fe_datamove(io); 12807 12808 return; 12809 12810} 12811 12812static int 12813ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12814{ 12815#if 0 12816 char str[256]; 12817 char path_str[64]; 12818 struct sbuf sb; 12819#endif 12820 12821 /* 12822 * In this case, we had to malloc the memory locally. Free it. 12823 */ 12824 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12825 int i; 12826 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12827 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12828 } 12829 12830#if 0 12831 scsi_path_string(io, path_str, sizeof(path_str)); 12832 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12833 sbuf_cat(&sb, path_str); 12834 scsi_command_string(&io->scsiio, NULL, &sb); 12835 sbuf_printf(&sb, "\n"); 12836 sbuf_cat(&sb, path_str); 12837 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12838 io->scsiio.tag_num, io->scsiio.tag_type); 12839 sbuf_cat(&sb, path_str); 12840 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12841 io->io_hdr.flags, io->io_hdr.status); 12842 sbuf_finish(&sb); 12843 printk("%s", sbuf_data(&sb)); 12844#endif 12845 12846 12847 /* 12848 * The read is done, now we need to send status (good or bad) back 12849 * to the other side. 12850 */ 12851 ctl_send_datamove_done(io, /*have_lock*/ 0); 12852 12853 return (0); 12854} 12855 12856static void 12857ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12858{ 12859 union ctl_io *io; 12860 void (*fe_datamove)(union ctl_io *io); 12861 12862 io = rq->context; 12863 12864 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12865 printf("%s: ISC DMA read failed with error %d", __func__, 12866 rq->ret); 12867 ctl_set_internal_failure(&io->scsiio, 12868 /*sks_valid*/ 1, 12869 /*retry_count*/ rq->ret); 12870 } 12871 12872 ctl_dt_req_free(rq); 12873 12874 /* Switch the pointer over so the FETD knows what to do */ 12875 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12876 12877 /* 12878 * Use a custom move done callback, since we need to send completion 12879 * back to the other controller, not to the backend on this side. 12880 */ 12881 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12882 12883 /* XXX KDM add checks like the ones in ctl_datamove? */ 12884 12885 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12886 12887 fe_datamove(io); 12888} 12889 12890static int 12891ctl_datamove_remote_sgl_setup(union ctl_io *io) 12892{ 12893 struct ctl_sg_entry *local_sglist, *remote_sglist; 12894 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12895 struct ctl_softc *softc; 12896 int retval; 12897 int i; 12898 12899 retval = 0; 12900 softc = control_softc; 12901 12902 local_sglist = io->io_hdr.local_sglist; 12903 local_dma_sglist = io->io_hdr.local_dma_sglist; 12904 remote_sglist = io->io_hdr.remote_sglist; 12905 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12906 12907 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12908 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12909 local_sglist[i].len = remote_sglist[i].len; 12910 12911 /* 12912 * XXX Detect the situation where the RS-level I/O 12913 * redirector on the other side has already read the 12914 * data off of the AOR RS on this side, and 12915 * transferred it to remote (mirror) memory on the 12916 * other side. Since we already have the data in 12917 * memory here, we just need to use it. 12918 * 12919 * XXX KDM this can probably be removed once we 12920 * get the cache device code in and take the 12921 * current AOR implementation out. 12922 */ 12923#ifdef NEEDTOPORT 12924 if ((remote_sglist[i].addr >= 12925 (void *)vtophys(softc->mirr->addr)) 12926 && (remote_sglist[i].addr < 12927 ((void *)vtophys(softc->mirr->addr) + 12928 CacheMirrorOffset))) { 12929 local_sglist[i].addr = remote_sglist[i].addr - 12930 CacheMirrorOffset; 12931 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12932 CTL_FLAG_DATA_IN) 12933 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12934 } else { 12935 local_sglist[i].addr = remote_sglist[i].addr + 12936 CacheMirrorOffset; 12937 } 12938#endif 12939#if 0 12940 printf("%s: local %p, remote %p, len %d\n", 12941 __func__, local_sglist[i].addr, 12942 remote_sglist[i].addr, local_sglist[i].len); 12943#endif 12944 } 12945 } else { 12946 uint32_t len_to_go; 12947 12948 /* 12949 * In this case, we don't have automatically allocated 12950 * memory for this I/O on this controller. This typically 12951 * happens with internal CTL I/O -- e.g. inquiry, mode 12952 * sense, etc. Anything coming from RAIDCore will have 12953 * a mirror area available. 12954 */ 12955 len_to_go = io->scsiio.kern_data_len; 12956 12957 /* 12958 * Clear the no datasync flag, we have to use malloced 12959 * buffers. 12960 */ 12961 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12962 12963 /* 12964 * The difficult thing here is that the size of the various 12965 * S/G segments may be different than the size from the 12966 * remote controller. That'll make it harder when DMAing 12967 * the data back to the other side. 12968 */ 12969 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12970 sizeof(io->io_hdr.remote_sglist[0])) && 12971 (len_to_go > 0); i++) { 12972 local_sglist[i].len = ctl_min(len_to_go, 131072); 12973 CTL_SIZE_8B(local_dma_sglist[i].len, 12974 local_sglist[i].len); 12975 local_sglist[i].addr = 12976 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 12977 12978 local_dma_sglist[i].addr = local_sglist[i].addr; 12979 12980 if (local_sglist[i].addr == NULL) { 12981 int j; 12982 12983 printf("malloc failed for %zd bytes!", 12984 local_dma_sglist[i].len); 12985 for (j = 0; j < i; j++) { 12986 free(local_sglist[j].addr, M_CTL); 12987 } 12988 ctl_set_internal_failure(&io->scsiio, 12989 /*sks_valid*/ 1, 12990 /*retry_count*/ 4857); 12991 retval = 1; 12992 goto bailout_error; 12993 12994 } 12995 /* XXX KDM do we need a sync here? */ 12996 12997 len_to_go -= local_sglist[i].len; 12998 } 12999 /* 13000 * Reset the number of S/G entries accordingly. The 13001 * original number of S/G entries is available in 13002 * rem_sg_entries. 13003 */ 13004 io->scsiio.kern_sg_entries = i; 13005 13006#if 0 13007 printf("%s: kern_sg_entries = %d\n", __func__, 13008 io->scsiio.kern_sg_entries); 13009 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13010 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13011 local_sglist[i].addr, local_sglist[i].len, 13012 local_dma_sglist[i].len); 13013#endif 13014 } 13015 13016 13017 return (retval); 13018 13019bailout_error: 13020 13021 ctl_send_datamove_done(io, /*have_lock*/ 0); 13022 13023 return (retval); 13024} 13025 13026static int 13027ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13028 ctl_ha_dt_cb callback) 13029{ 13030 struct ctl_ha_dt_req *rq; 13031 struct ctl_sg_entry *remote_sglist, *local_sglist; 13032 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13033 uint32_t local_used, remote_used, total_used; 13034 int retval; 13035 int i, j; 13036 13037 retval = 0; 13038 13039 rq = ctl_dt_req_alloc(); 13040 13041 /* 13042 * If we failed to allocate the request, and if the DMA didn't fail 13043 * anyway, set busy status. This is just a resource allocation 13044 * failure. 13045 */ 13046 if ((rq == NULL) 13047 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13048 ctl_set_busy(&io->scsiio); 13049 13050 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13051 13052 if (rq != NULL) 13053 ctl_dt_req_free(rq); 13054 13055 /* 13056 * The data move failed. We need to return status back 13057 * to the other controller. No point in trying to DMA 13058 * data to the remote controller. 13059 */ 13060 13061 ctl_send_datamove_done(io, /*have_lock*/ 0); 13062 13063 retval = 1; 13064 13065 goto bailout; 13066 } 13067 13068 local_sglist = io->io_hdr.local_sglist; 13069 local_dma_sglist = io->io_hdr.local_dma_sglist; 13070 remote_sglist = io->io_hdr.remote_sglist; 13071 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13072 local_used = 0; 13073 remote_used = 0; 13074 total_used = 0; 13075 13076 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13077 rq->ret = CTL_HA_STATUS_SUCCESS; 13078 rq->context = io; 13079 callback(rq); 13080 goto bailout; 13081 } 13082 13083 /* 13084 * Pull/push the data over the wire from/to the other controller. 13085 * This takes into account the possibility that the local and 13086 * remote sglists may not be identical in terms of the size of 13087 * the elements and the number of elements. 13088 * 13089 * One fundamental assumption here is that the length allocated for 13090 * both the local and remote sglists is identical. Otherwise, we've 13091 * essentially got a coding error of some sort. 13092 */ 13093 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13094 int isc_ret; 13095 uint32_t cur_len, dma_length; 13096 uint8_t *tmp_ptr; 13097 13098 rq->id = CTL_HA_DATA_CTL; 13099 rq->command = command; 13100 rq->context = io; 13101 13102 /* 13103 * Both pointers should be aligned. But it is possible 13104 * that the allocation length is not. They should both 13105 * also have enough slack left over at the end, though, 13106 * to round up to the next 8 byte boundary. 13107 */ 13108 cur_len = ctl_min(local_sglist[i].len - local_used, 13109 remote_sglist[j].len - remote_used); 13110 13111 /* 13112 * In this case, we have a size issue and need to decrease 13113 * the size, except in the case where we actually have less 13114 * than 8 bytes left. In that case, we need to increase 13115 * the DMA length to get the last bit. 13116 */ 13117 if ((cur_len & 0x7) != 0) { 13118 if (cur_len > 0x7) { 13119 cur_len = cur_len - (cur_len & 0x7); 13120 dma_length = cur_len; 13121 } else { 13122 CTL_SIZE_8B(dma_length, cur_len); 13123 } 13124 13125 } else 13126 dma_length = cur_len; 13127 13128 /* 13129 * If we had to allocate memory for this I/O, instead of using 13130 * the non-cached mirror memory, we'll need to flush the cache 13131 * before trying to DMA to the other controller. 13132 * 13133 * We could end up doing this multiple times for the same 13134 * segment if we have a larger local segment than remote 13135 * segment. That shouldn't be an issue. 13136 */ 13137 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13138 /* 13139 * XXX KDM use bus_dmamap_sync() here. 13140 */ 13141 } 13142 13143 rq->size = dma_length; 13144 13145 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13146 tmp_ptr += local_used; 13147 13148 /* Use physical addresses when talking to ISC hardware */ 13149 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13150 /* XXX KDM use busdma */ 13151#if 0 13152 rq->local = vtophys(tmp_ptr); 13153#endif 13154 } else 13155 rq->local = tmp_ptr; 13156 13157 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13158 tmp_ptr += remote_used; 13159 rq->remote = tmp_ptr; 13160 13161 rq->callback = NULL; 13162 13163 local_used += cur_len; 13164 if (local_used >= local_sglist[i].len) { 13165 i++; 13166 local_used = 0; 13167 } 13168 13169 remote_used += cur_len; 13170 if (remote_used >= remote_sglist[j].len) { 13171 j++; 13172 remote_used = 0; 13173 } 13174 total_used += cur_len; 13175 13176 if (total_used >= io->scsiio.kern_data_len) 13177 rq->callback = callback; 13178 13179 if ((rq->size & 0x7) != 0) { 13180 printf("%s: warning: size %d is not on 8b boundary\n", 13181 __func__, rq->size); 13182 } 13183 if (((uintptr_t)rq->local & 0x7) != 0) { 13184 printf("%s: warning: local %p not on 8b boundary\n", 13185 __func__, rq->local); 13186 } 13187 if (((uintptr_t)rq->remote & 0x7) != 0) { 13188 printf("%s: warning: remote %p not on 8b boundary\n", 13189 __func__, rq->local); 13190 } 13191#if 0 13192 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13193 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13194 rq->local, rq->remote, rq->size); 13195#endif 13196 13197 isc_ret = ctl_dt_single(rq); 13198 if (isc_ret == CTL_HA_STATUS_WAIT) 13199 continue; 13200 13201 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13202 rq->ret = CTL_HA_STATUS_SUCCESS; 13203 } else { 13204 rq->ret = isc_ret; 13205 } 13206 callback(rq); 13207 goto bailout; 13208 } 13209 13210bailout: 13211 return (retval); 13212 13213} 13214 13215static void 13216ctl_datamove_remote_read(union ctl_io *io) 13217{ 13218 int retval; 13219 int i; 13220 13221 /* 13222 * This will send an error to the other controller in the case of a 13223 * failure. 13224 */ 13225 retval = ctl_datamove_remote_sgl_setup(io); 13226 if (retval != 0) 13227 return; 13228 13229 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13230 ctl_datamove_remote_read_cb); 13231 if ((retval != 0) 13232 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13233 /* 13234 * Make sure we free memory if there was an error.. The 13235 * ctl_datamove_remote_xfer() function will send the 13236 * datamove done message, or call the callback with an 13237 * error if there is a problem. 13238 */ 13239 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13240 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13241 } 13242 13243 return; 13244} 13245 13246/* 13247 * Process a datamove request from the other controller. This is used for 13248 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13249 * first. Once that is complete, the data gets DMAed into the remote 13250 * controller's memory. For reads, we DMA from the remote controller's 13251 * memory into our memory first, and then move it out to the FETD. 13252 */ 13253static void 13254ctl_datamove_remote(union ctl_io *io) 13255{ 13256 struct ctl_softc *softc; 13257 13258 softc = control_softc; 13259 13260 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13261 13262 /* 13263 * Note that we look for an aborted I/O here, but don't do some of 13264 * the other checks that ctl_datamove() normally does. 13265 * We don't need to run the datamove delay code, since that should 13266 * have been done if need be on the other controller. 13267 */ 13268 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13269 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13270 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13271 io->io_hdr.nexus.targ_port, 13272 io->io_hdr.nexus.targ_target.id, 13273 io->io_hdr.nexus.targ_lun); 13274 io->io_hdr.port_status = 31338; 13275 ctl_send_datamove_done(io, /*have_lock*/ 0); 13276 return; 13277 } 13278 13279 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13280 ctl_datamove_remote_write(io); 13281 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13282 ctl_datamove_remote_read(io); 13283 } else { 13284 union ctl_ha_msg msg; 13285 struct scsi_sense_data *sense; 13286 uint8_t sks[3]; 13287 int retry_count; 13288 13289 memset(&msg, 0, sizeof(msg)); 13290 13291 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13292 msg.hdr.status = CTL_SCSI_ERROR; 13293 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13294 13295 retry_count = 4243; 13296 13297 sense = &msg.scsi.sense_data; 13298 sks[0] = SSD_SCS_VALID; 13299 sks[1] = (retry_count >> 8) & 0xff; 13300 sks[2] = retry_count & 0xff; 13301 13302 /* "Internal target failure" */ 13303 scsi_set_sense_data(sense, 13304 /*sense_format*/ SSD_TYPE_NONE, 13305 /*current_error*/ 1, 13306 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13307 /*asc*/ 0x44, 13308 /*ascq*/ 0x00, 13309 /*type*/ SSD_ELEM_SKS, 13310 /*size*/ sizeof(sks), 13311 /*data*/ sks, 13312 SSD_ELEM_NONE); 13313 13314 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13315 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13316 ctl_failover_io(io, /*have_lock*/ 1); 13317 return; 13318 } 13319 13320 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13321 CTL_HA_STATUS_SUCCESS) { 13322 /* XXX KDM what to do if this fails? */ 13323 } 13324 return; 13325 } 13326 13327} 13328 13329static int 13330ctl_process_done(union ctl_io *io) 13331{ 13332 struct ctl_lun *lun; 13333 struct ctl_softc *ctl_softc; 13334 void (*fe_done)(union ctl_io *io); 13335 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13336 13337 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13338 13339 fe_done = 13340 control_softc->ctl_ports[targ_port]->fe_done; 13341 13342#ifdef CTL_TIME_IO 13343 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13344 char str[256]; 13345 char path_str[64]; 13346 struct sbuf sb; 13347 13348 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13349 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13350 13351 sbuf_cat(&sb, path_str); 13352 switch (io->io_hdr.io_type) { 13353 case CTL_IO_SCSI: 13354 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13355 sbuf_printf(&sb, "\n"); 13356 sbuf_cat(&sb, path_str); 13357 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13358 io->scsiio.tag_num, io->scsiio.tag_type); 13359 break; 13360 case CTL_IO_TASK: 13361 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13362 "Tag Type: %d\n", io->taskio.task_action, 13363 io->taskio.tag_num, io->taskio.tag_type); 13364 break; 13365 default: 13366 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13367 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13368 break; 13369 } 13370 sbuf_cat(&sb, path_str); 13371 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13372 (intmax_t)time_uptime - io->io_hdr.start_time); 13373 sbuf_finish(&sb); 13374 printf("%s", sbuf_data(&sb)); 13375 } 13376#endif /* CTL_TIME_IO */ 13377 13378 switch (io->io_hdr.io_type) { 13379 case CTL_IO_SCSI: 13380 break; 13381 case CTL_IO_TASK: 13382 if (bootverbose || verbose > 0) 13383 ctl_io_error_print(io, NULL); 13384 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13385 ctl_free_io(io); 13386 else 13387 fe_done(io); 13388 return (CTL_RETVAL_COMPLETE); 13389 break; 13390 default: 13391 printf("ctl_process_done: invalid io type %d\n", 13392 io->io_hdr.io_type); 13393 panic("ctl_process_done: invalid io type %d\n", 13394 io->io_hdr.io_type); 13395 break; /* NOTREACHED */ 13396 } 13397 13398 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13399 if (lun == NULL) { 13400 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13401 io->io_hdr.nexus.targ_mapped_lun)); 13402 fe_done(io); 13403 goto bailout; 13404 } 13405 ctl_softc = lun->ctl_softc; 13406 13407 mtx_lock(&lun->lun_lock); 13408 13409 /* 13410 * Check to see if we have any errors to inject here. We only 13411 * inject errors for commands that don't already have errors set. 13412 */ 13413 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13414 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13415 ctl_inject_error(lun, io); 13416 13417 /* 13418 * XXX KDM how do we treat commands that aren't completed 13419 * successfully? 13420 * 13421 * XXX KDM should we also track I/O latency? 13422 */ 13423 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13424 io->io_hdr.io_type == CTL_IO_SCSI) { 13425#ifdef CTL_TIME_IO 13426 struct bintime cur_bt; 13427#endif 13428 int type; 13429 13430 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13431 CTL_FLAG_DATA_IN) 13432 type = CTL_STATS_READ; 13433 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13434 CTL_FLAG_DATA_OUT) 13435 type = CTL_STATS_WRITE; 13436 else 13437 type = CTL_STATS_NO_IO; 13438 13439 lun->stats.ports[targ_port].bytes[type] += 13440 io->scsiio.kern_total_len; 13441 lun->stats.ports[targ_port].operations[type]++; 13442#ifdef CTL_TIME_IO 13443 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13444 &io->io_hdr.dma_bt); 13445 lun->stats.ports[targ_port].num_dmas[type] += 13446 io->io_hdr.num_dmas; 13447 getbintime(&cur_bt); 13448 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13449 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13450#endif 13451 } 13452 13453 /* 13454 * Remove this from the OOA queue. 13455 */ 13456 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13457 13458 /* 13459 * Run through the blocked queue on this LUN and see if anything 13460 * has become unblocked, now that this transaction is done. 13461 */ 13462 ctl_check_blocked(lun); 13463 13464 /* 13465 * If the LUN has been invalidated, free it if there is nothing 13466 * left on its OOA queue. 13467 */ 13468 if ((lun->flags & CTL_LUN_INVALID) 13469 && TAILQ_EMPTY(&lun->ooa_queue)) { 13470 mtx_unlock(&lun->lun_lock); 13471 mtx_lock(&ctl_softc->ctl_lock); 13472 ctl_free_lun(lun); 13473 mtx_unlock(&ctl_softc->ctl_lock); 13474 } else 13475 mtx_unlock(&lun->lun_lock); 13476 13477 /* 13478 * If this command has been aborted, make sure we set the status 13479 * properly. The FETD is responsible for freeing the I/O and doing 13480 * whatever it needs to do to clean up its state. 13481 */ 13482 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13483 ctl_set_task_aborted(&io->scsiio); 13484 13485 /* 13486 * We print out status for every task management command. For SCSI 13487 * commands, we filter out any unit attention errors; they happen 13488 * on every boot, and would clutter up the log. Note: task 13489 * management commands aren't printed here, they are printed above, 13490 * since they should never even make it down here. 13491 */ 13492 switch (io->io_hdr.io_type) { 13493 case CTL_IO_SCSI: { 13494 int error_code, sense_key, asc, ascq; 13495 13496 sense_key = 0; 13497 13498 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13499 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13500 /* 13501 * Since this is just for printing, no need to 13502 * show errors here. 13503 */ 13504 scsi_extract_sense_len(&io->scsiio.sense_data, 13505 io->scsiio.sense_len, 13506 &error_code, 13507 &sense_key, 13508 &asc, 13509 &ascq, 13510 /*show_errors*/ 0); 13511 } 13512 13513 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13514 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13515 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13516 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13517 13518 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13519 ctl_softc->skipped_prints++; 13520 } else { 13521 uint32_t skipped_prints; 13522 13523 skipped_prints = ctl_softc->skipped_prints; 13524 13525 ctl_softc->skipped_prints = 0; 13526 ctl_softc->last_print_jiffies = time_uptime; 13527 13528 if (skipped_prints > 0) { 13529#ifdef NEEDTOPORT 13530 csevent_log(CSC_CTL | CSC_SHELF_SW | 13531 CTL_ERROR_REPORT, 13532 csevent_LogType_Trace, 13533 csevent_Severity_Information, 13534 csevent_AlertLevel_Green, 13535 csevent_FRU_Firmware, 13536 csevent_FRU_Unknown, 13537 "High CTL error volume, %d prints " 13538 "skipped", skipped_prints); 13539#endif 13540 } 13541 if (bootverbose || verbose > 0) 13542 ctl_io_error_print(io, NULL); 13543 } 13544 } 13545 break; 13546 } 13547 case CTL_IO_TASK: 13548 if (bootverbose || verbose > 0) 13549 ctl_io_error_print(io, NULL); 13550 break; 13551 default: 13552 break; 13553 } 13554 13555 /* 13556 * Tell the FETD or the other shelf controller we're done with this 13557 * command. Note that only SCSI commands get to this point. Task 13558 * management commands are completed above. 13559 * 13560 * We only send status to the other controller if we're in XFER 13561 * mode. In SER_ONLY mode, the I/O is done on the controller that 13562 * received the I/O (from CTL's perspective), and so the status is 13563 * generated there. 13564 * 13565 * XXX KDM if we hold the lock here, we could cause a deadlock 13566 * if the frontend comes back in in this context to queue 13567 * something. 13568 */ 13569 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13570 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13571 union ctl_ha_msg msg; 13572 13573 memset(&msg, 0, sizeof(msg)); 13574 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13575 msg.hdr.original_sc = io->io_hdr.original_sc; 13576 msg.hdr.nexus = io->io_hdr.nexus; 13577 msg.hdr.status = io->io_hdr.status; 13578 msg.scsi.scsi_status = io->scsiio.scsi_status; 13579 msg.scsi.tag_num = io->scsiio.tag_num; 13580 msg.scsi.tag_type = io->scsiio.tag_type; 13581 msg.scsi.sense_len = io->scsiio.sense_len; 13582 msg.scsi.sense_residual = io->scsiio.sense_residual; 13583 msg.scsi.residual = io->scsiio.residual; 13584 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13585 sizeof(io->scsiio.sense_data)); 13586 /* 13587 * We copy this whether or not this is an I/O-related 13588 * command. Otherwise, we'd have to go and check to see 13589 * whether it's a read/write command, and it really isn't 13590 * worth it. 13591 */ 13592 memcpy(&msg.scsi.lbalen, 13593 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13594 sizeof(msg.scsi.lbalen)); 13595 13596 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13597 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13598 /* XXX do something here */ 13599 } 13600 13601 ctl_free_io(io); 13602 } else 13603 fe_done(io); 13604 13605bailout: 13606 13607 return (CTL_RETVAL_COMPLETE); 13608} 13609 13610/* 13611 * Front end should call this if it doesn't do autosense. When the request 13612 * sense comes back in from the initiator, we'll dequeue this and send it. 13613 */ 13614int 13615ctl_queue_sense(union ctl_io *io) 13616{ 13617 struct ctl_lun *lun; 13618 struct ctl_softc *ctl_softc; 13619 uint32_t initidx, targ_lun; 13620 13621 ctl_softc = control_softc; 13622 13623 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13624 13625 /* 13626 * LUN lookup will likely move to the ctl_work_thread() once we 13627 * have our new queueing infrastructure (that doesn't put things on 13628 * a per-LUN queue initially). That is so that we can handle 13629 * things like an INQUIRY to a LUN that we don't have enabled. We 13630 * can't deal with that right now. 13631 */ 13632 mtx_lock(&ctl_softc->ctl_lock); 13633 13634 /* 13635 * If we don't have a LUN for this, just toss the sense 13636 * information. 13637 */ 13638 targ_lun = io->io_hdr.nexus.targ_lun; 13639 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13640 if ((targ_lun < CTL_MAX_LUNS) 13641 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13642 lun = ctl_softc->ctl_luns[targ_lun]; 13643 else 13644 goto bailout; 13645 13646 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13647 13648 mtx_lock(&lun->lun_lock); 13649 /* 13650 * Already have CA set for this LUN...toss the sense information. 13651 */ 13652 if (ctl_is_set(lun->have_ca, initidx)) { 13653 mtx_unlock(&lun->lun_lock); 13654 goto bailout; 13655 } 13656 13657 memcpy(&lun->pending_sense[initidx].sense, &io->scsiio.sense_data, 13658 ctl_min(sizeof(lun->pending_sense[initidx].sense), 13659 sizeof(io->scsiio.sense_data))); 13660 ctl_set_mask(lun->have_ca, initidx); 13661 mtx_unlock(&lun->lun_lock); 13662 13663bailout: 13664 mtx_unlock(&ctl_softc->ctl_lock); 13665 13666 ctl_free_io(io); 13667 13668 return (CTL_RETVAL_COMPLETE); 13669} 13670 13671/* 13672 * Primary command inlet from frontend ports. All SCSI and task I/O 13673 * requests must go through this function. 13674 */ 13675int 13676ctl_queue(union ctl_io *io) 13677{ 13678 struct ctl_softc *ctl_softc; 13679 13680 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13681 13682 ctl_softc = control_softc; 13683 13684#ifdef CTL_TIME_IO 13685 io->io_hdr.start_time = time_uptime; 13686 getbintime(&io->io_hdr.start_bt); 13687#endif /* CTL_TIME_IO */ 13688 13689 /* Map FE-specific LUN ID into global one. */ 13690 io->io_hdr.nexus.targ_mapped_lun = 13691 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13692 13693 switch (io->io_hdr.io_type) { 13694 case CTL_IO_SCSI: 13695 case CTL_IO_TASK: 13696 ctl_enqueue_incoming(io); 13697 break; 13698 default: 13699 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13700 return (EINVAL); 13701 } 13702 13703 return (CTL_RETVAL_COMPLETE); 13704} 13705 13706#ifdef CTL_IO_DELAY 13707static void 13708ctl_done_timer_wakeup(void *arg) 13709{ 13710 union ctl_io *io; 13711 13712 io = (union ctl_io *)arg; 13713 ctl_done(io); 13714} 13715#endif /* CTL_IO_DELAY */ 13716 13717void 13718ctl_done(union ctl_io *io) 13719{ 13720 struct ctl_softc *ctl_softc; 13721 13722 ctl_softc = control_softc; 13723 13724 /* 13725 * Enable this to catch duplicate completion issues. 13726 */ 13727#if 0 13728 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13729 printf("%s: type %d msg %d cdb %x iptl: " 13730 "%d:%d:%d:%d tag 0x%04x " 13731 "flag %#x status %x\n", 13732 __func__, 13733 io->io_hdr.io_type, 13734 io->io_hdr.msg_type, 13735 io->scsiio.cdb[0], 13736 io->io_hdr.nexus.initid.id, 13737 io->io_hdr.nexus.targ_port, 13738 io->io_hdr.nexus.targ_target.id, 13739 io->io_hdr.nexus.targ_lun, 13740 (io->io_hdr.io_type == 13741 CTL_IO_TASK) ? 13742 io->taskio.tag_num : 13743 io->scsiio.tag_num, 13744 io->io_hdr.flags, 13745 io->io_hdr.status); 13746 } else 13747 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13748#endif 13749 13750 /* 13751 * This is an internal copy of an I/O, and should not go through 13752 * the normal done processing logic. 13753 */ 13754 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13755 return; 13756 13757 /* 13758 * We need to send a msg to the serializing shelf to finish the IO 13759 * as well. We don't send a finish message to the other shelf if 13760 * this is a task management command. Task management commands 13761 * aren't serialized in the OOA queue, but rather just executed on 13762 * both shelf controllers for commands that originated on that 13763 * controller. 13764 */ 13765 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13766 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13767 union ctl_ha_msg msg_io; 13768 13769 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13770 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13771 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13772 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13773 } 13774 /* continue on to finish IO */ 13775 } 13776#ifdef CTL_IO_DELAY 13777 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13778 struct ctl_lun *lun; 13779 13780 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13781 13782 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13783 } else { 13784 struct ctl_lun *lun; 13785 13786 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13787 13788 if ((lun != NULL) 13789 && (lun->delay_info.done_delay > 0)) { 13790 struct callout *callout; 13791 13792 callout = (struct callout *)&io->io_hdr.timer_bytes; 13793 callout_init(callout, /*mpsafe*/ 1); 13794 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13795 callout_reset(callout, 13796 lun->delay_info.done_delay * hz, 13797 ctl_done_timer_wakeup, io); 13798 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13799 lun->delay_info.done_delay = 0; 13800 return; 13801 } 13802 } 13803#endif /* CTL_IO_DELAY */ 13804 13805 ctl_enqueue_done(io); 13806} 13807 13808int 13809ctl_isc(struct ctl_scsiio *ctsio) 13810{ 13811 struct ctl_lun *lun; 13812 int retval; 13813 13814 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13815 13816 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13817 13818 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13819 13820 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13821 13822 return (retval); 13823} 13824 13825 13826static void 13827ctl_work_thread(void *arg) 13828{ 13829 struct ctl_thread *thr = (struct ctl_thread *)arg; 13830 struct ctl_softc *softc = thr->ctl_softc; 13831 union ctl_io *io; 13832 int retval; 13833 13834 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13835 13836 for (;;) { 13837 retval = 0; 13838 13839 /* 13840 * We handle the queues in this order: 13841 * - ISC 13842 * - done queue (to free up resources, unblock other commands) 13843 * - RtR queue 13844 * - incoming queue 13845 * 13846 * If those queues are empty, we break out of the loop and 13847 * go to sleep. 13848 */ 13849 mtx_lock(&thr->queue_lock); 13850 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13851 if (io != NULL) { 13852 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13853 mtx_unlock(&thr->queue_lock); 13854 ctl_handle_isc(io); 13855 continue; 13856 } 13857 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13858 if (io != NULL) { 13859 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13860 /* clear any blocked commands, call fe_done */ 13861 mtx_unlock(&thr->queue_lock); 13862 retval = ctl_process_done(io); 13863 continue; 13864 } 13865 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13866 if (io != NULL) { 13867 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13868 mtx_unlock(&thr->queue_lock); 13869 if (io->io_hdr.io_type == CTL_IO_TASK) 13870 ctl_run_task(io); 13871 else 13872 ctl_scsiio_precheck(softc, &io->scsiio); 13873 continue; 13874 } 13875 if (!ctl_pause_rtr) { 13876 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13877 if (io != NULL) { 13878 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13879 mtx_unlock(&thr->queue_lock); 13880 retval = ctl_scsiio(&io->scsiio); 13881 if (retval != CTL_RETVAL_COMPLETE) 13882 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13883 continue; 13884 } 13885 } 13886 13887 /* Sleep until we have something to do. */ 13888 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13889 } 13890} 13891 13892static void 13893ctl_lun_thread(void *arg) 13894{ 13895 struct ctl_softc *softc = (struct ctl_softc *)arg; 13896 struct ctl_be_lun *be_lun; 13897 int retval; 13898 13899 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13900 13901 for (;;) { 13902 retval = 0; 13903 mtx_lock(&softc->ctl_lock); 13904 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13905 if (be_lun != NULL) { 13906 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13907 mtx_unlock(&softc->ctl_lock); 13908 ctl_create_lun(be_lun); 13909 continue; 13910 } 13911 13912 /* Sleep until we have something to do. */ 13913 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13914 PDROP | PRIBIO, "-", 0); 13915 } 13916} 13917 13918static void 13919ctl_enqueue_incoming(union ctl_io *io) 13920{ 13921 struct ctl_softc *softc = control_softc; 13922 struct ctl_thread *thr; 13923 u_int idx; 13924 13925 idx = (io->io_hdr.nexus.targ_port * 127 + 13926 io->io_hdr.nexus.initid.id) % worker_threads; 13927 thr = &softc->threads[idx]; 13928 mtx_lock(&thr->queue_lock); 13929 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13930 mtx_unlock(&thr->queue_lock); 13931 wakeup(thr); 13932} 13933 13934static void 13935ctl_enqueue_rtr(union ctl_io *io) 13936{ 13937 struct ctl_softc *softc = control_softc; 13938 struct ctl_thread *thr; 13939 13940 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13941 mtx_lock(&thr->queue_lock); 13942 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13943 mtx_unlock(&thr->queue_lock); 13944 wakeup(thr); 13945} 13946 13947static void 13948ctl_enqueue_done(union ctl_io *io) 13949{ 13950 struct ctl_softc *softc = control_softc; 13951 struct ctl_thread *thr; 13952 13953 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13954 mtx_lock(&thr->queue_lock); 13955 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13956 mtx_unlock(&thr->queue_lock); 13957 wakeup(thr); 13958} 13959 13960static void 13961ctl_enqueue_isc(union ctl_io *io) 13962{ 13963 struct ctl_softc *softc = control_softc; 13964 struct ctl_thread *thr; 13965 13966 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13967 mtx_lock(&thr->queue_lock); 13968 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13969 mtx_unlock(&thr->queue_lock); 13970 wakeup(thr); 13971} 13972 13973/* Initialization and failover */ 13974 13975void 13976ctl_init_isc_msg(void) 13977{ 13978 printf("CTL: Still calling this thing\n"); 13979} 13980 13981/* 13982 * Init component 13983 * Initializes component into configuration defined by bootMode 13984 * (see hasc-sv.c) 13985 * returns hasc_Status: 13986 * OK 13987 * ERROR - fatal error 13988 */ 13989static ctl_ha_comp_status 13990ctl_isc_init(struct ctl_ha_component *c) 13991{ 13992 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 13993 13994 c->status = ret; 13995 return ret; 13996} 13997 13998/* Start component 13999 * Starts component in state requested. If component starts successfully, 14000 * it must set its own state to the requestrd state 14001 * When requested state is HASC_STATE_HA, the component may refine it 14002 * by adding _SLAVE or _MASTER flags. 14003 * Currently allowed state transitions are: 14004 * UNKNOWN->HA - initial startup 14005 * UNKNOWN->SINGLE - initial startup when no parter detected 14006 * HA->SINGLE - failover 14007 * returns ctl_ha_comp_status: 14008 * OK - component successfully started in requested state 14009 * FAILED - could not start the requested state, failover may 14010 * be possible 14011 * ERROR - fatal error detected, no future startup possible 14012 */ 14013static ctl_ha_comp_status 14014ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14015{ 14016 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14017 14018 printf("%s: go\n", __func__); 14019 14020 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14021 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14022 ctl_is_single = 0; 14023 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14024 != CTL_HA_STATUS_SUCCESS) { 14025 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14026 ret = CTL_HA_COMP_STATUS_ERROR; 14027 } 14028 } else if (CTL_HA_STATE_IS_HA(c->state) 14029 && CTL_HA_STATE_IS_SINGLE(state)){ 14030 // HA->SINGLE transition 14031 ctl_failover(); 14032 ctl_is_single = 1; 14033 } else { 14034 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14035 c->state, state); 14036 ret = CTL_HA_COMP_STATUS_ERROR; 14037 } 14038 if (CTL_HA_STATE_IS_SINGLE(state)) 14039 ctl_is_single = 1; 14040 14041 c->state = state; 14042 c->status = ret; 14043 return ret; 14044} 14045 14046/* 14047 * Quiesce component 14048 * The component must clear any error conditions (set status to OK) and 14049 * prepare itself to another Start call 14050 * returns ctl_ha_comp_status: 14051 * OK 14052 * ERROR 14053 */ 14054static ctl_ha_comp_status 14055ctl_isc_quiesce(struct ctl_ha_component *c) 14056{ 14057 int ret = CTL_HA_COMP_STATUS_OK; 14058 14059 ctl_pause_rtr = 1; 14060 c->status = ret; 14061 return ret; 14062} 14063 14064struct ctl_ha_component ctl_ha_component_ctlisc = 14065{ 14066 .name = "CTL ISC", 14067 .state = CTL_HA_STATE_UNKNOWN, 14068 .init = ctl_isc_init, 14069 .start = ctl_isc_start, 14070 .quiesce = ctl_isc_quiesce 14071}; 14072 14073/* 14074 * vim: ts=8 14075 */ 14076