ctl.c revision 273315
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by Edward Tomasz Napierala 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * substantially similar to the "NO WARRANTY" disclaimer below 17 * ("Disclaimer") and any redistribution must be conditioned upon 18 * including a substantially similar Disclaimer requirement for further 19 * binary redistribution. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $ 35 */ 36/* 37 * CAM Target Layer, a SCSI device emulation subsystem. 38 * 39 * Author: Ken Merry <ken@FreeBSD.org> 40 */ 41 42#define _CTL_C 43 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 273315 2014-10-20 07:41:37Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/kernel.h> 50#include <sys/types.h> 51#include <sys/kthread.h> 52#include <sys/bio.h> 53#include <sys/fcntl.h> 54#include <sys/lock.h> 55#include <sys/module.h> 56#include <sys/mutex.h> 57#include <sys/condvar.h> 58#include <sys/malloc.h> 59#include <sys/conf.h> 60#include <sys/ioccom.h> 61#include <sys/queue.h> 62#include <sys/sbuf.h> 63#include <sys/smp.h> 64#include <sys/endian.h> 65#include <sys/sysctl.h> 66 67#include <cam/cam.h> 68#include <cam/scsi/scsi_all.h> 69#include <cam/scsi/scsi_da.h> 70#include <cam/ctl/ctl_io.h> 71#include <cam/ctl/ctl.h> 72#include <cam/ctl/ctl_frontend.h> 73#include <cam/ctl/ctl_frontend_internal.h> 74#include <cam/ctl/ctl_util.h> 75#include <cam/ctl/ctl_backend.h> 76#include <cam/ctl/ctl_ioctl.h> 77#include <cam/ctl/ctl_ha.h> 78#include <cam/ctl/ctl_private.h> 79#include <cam/ctl/ctl_debug.h> 80#include <cam/ctl/ctl_scsi_all.h> 81#include <cam/ctl/ctl_error.h> 82 83struct ctl_softc *control_softc = NULL; 84 85/* 86 * Size and alignment macros needed for Copan-specific HA hardware. These 87 * can go away when the HA code is re-written, and uses busdma for any 88 * hardware. 89 */ 90#define CTL_ALIGN_8B(target, source, type) \ 91 if (((uint32_t)source & 0x7) != 0) \ 92 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 93 else \ 94 target = (type)source; 95 96#define CTL_SIZE_8B(target, size) \ 97 if ((size & 0x7) != 0) \ 98 target = size + (0x8 - (size & 0x7)); \ 99 else \ 100 target = size; 101 102#define CTL_ALIGN_8B_MARGIN 16 103 104/* 105 * Template mode pages. 106 */ 107 108/* 109 * Note that these are default values only. The actual values will be 110 * filled in when the user does a mode sense. 111 */ 112static struct copan_power_subpage power_page_default = { 113 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 114 /*subpage*/ PWR_SUBPAGE_CODE, 115 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 116 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 117 /*page_version*/ PWR_VERSION, 118 /* total_luns */ 26, 119 /* max_active_luns*/ PWR_DFLT_MAX_LUNS, 120 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 121 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 122 0, 0, 0, 0, 0, 0} 123}; 124 125static struct copan_power_subpage power_page_changeable = { 126 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 127 /*subpage*/ PWR_SUBPAGE_CODE, 128 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 129 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 130 /*page_version*/ 0, 131 /* total_luns */ 0, 132 /* max_active_luns*/ 0, 133 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 134 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135 0, 0, 0, 0, 0, 0} 136}; 137 138static struct copan_aps_subpage aps_page_default = { 139 APS_PAGE_CODE | SMPH_SPF, //page_code 140 APS_SUBPAGE_CODE, //subpage 141 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 142 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 143 APS_VERSION, //page_version 144 0, //lock_active 145 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 147 0, 0, 0, 0, 0} //reserved 148}; 149 150static struct copan_aps_subpage aps_page_changeable = { 151 APS_PAGE_CODE | SMPH_SPF, //page_code 152 APS_SUBPAGE_CODE, //subpage 153 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 154 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 155 0, //page_version 156 0, //lock_active 157 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 158 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 159 0, 0, 0, 0, 0} //reserved 160}; 161 162static struct copan_debugconf_subpage debugconf_page_default = { 163 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 164 DBGCNF_SUBPAGE_CODE, /* subpage */ 165 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 166 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 167 DBGCNF_VERSION, /* page_version */ 168 {CTL_TIME_IO_DEFAULT_SECS>>8, 169 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 170}; 171 172static struct copan_debugconf_subpage debugconf_page_changeable = { 173 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 174 DBGCNF_SUBPAGE_CODE, /* subpage */ 175 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 176 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 177 0, /* page_version */ 178 {0xff,0xff}, /* ctl_time_io_secs */ 179}; 180 181static struct scsi_format_page format_page_default = { 182 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 183 /*page_length*/sizeof(struct scsi_format_page) - 2, 184 /*tracks_per_zone*/ {0, 0}, 185 /*alt_sectors_per_zone*/ {0, 0}, 186 /*alt_tracks_per_zone*/ {0, 0}, 187 /*alt_tracks_per_lun*/ {0, 0}, 188 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 189 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 190 /*bytes_per_sector*/ {0, 0}, 191 /*interleave*/ {0, 0}, 192 /*track_skew*/ {0, 0}, 193 /*cylinder_skew*/ {0, 0}, 194 /*flags*/ SFP_HSEC, 195 /*reserved*/ {0, 0, 0} 196}; 197 198static struct scsi_format_page format_page_changeable = { 199 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 200 /*page_length*/sizeof(struct scsi_format_page) - 2, 201 /*tracks_per_zone*/ {0, 0}, 202 /*alt_sectors_per_zone*/ {0, 0}, 203 /*alt_tracks_per_zone*/ {0, 0}, 204 /*alt_tracks_per_lun*/ {0, 0}, 205 /*sectors_per_track*/ {0, 0}, 206 /*bytes_per_sector*/ {0, 0}, 207 /*interleave*/ {0, 0}, 208 /*track_skew*/ {0, 0}, 209 /*cylinder_skew*/ {0, 0}, 210 /*flags*/ 0, 211 /*reserved*/ {0, 0, 0} 212}; 213 214static struct scsi_rigid_disk_page rigid_disk_page_default = { 215 /*page_code*/SMS_RIGID_DISK_PAGE, 216 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 217 /*cylinders*/ {0, 0, 0}, 218 /*heads*/ CTL_DEFAULT_HEADS, 219 /*start_write_precomp*/ {0, 0, 0}, 220 /*start_reduced_current*/ {0, 0, 0}, 221 /*step_rate*/ {0, 0}, 222 /*landing_zone_cylinder*/ {0, 0, 0}, 223 /*rpl*/ SRDP_RPL_DISABLED, 224 /*rotational_offset*/ 0, 225 /*reserved1*/ 0, 226 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 227 CTL_DEFAULT_ROTATION_RATE & 0xff}, 228 /*reserved2*/ {0, 0} 229}; 230 231static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 232 /*page_code*/SMS_RIGID_DISK_PAGE, 233 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 234 /*cylinders*/ {0, 0, 0}, 235 /*heads*/ 0, 236 /*start_write_precomp*/ {0, 0, 0}, 237 /*start_reduced_current*/ {0, 0, 0}, 238 /*step_rate*/ {0, 0}, 239 /*landing_zone_cylinder*/ {0, 0, 0}, 240 /*rpl*/ 0, 241 /*rotational_offset*/ 0, 242 /*reserved1*/ 0, 243 /*rotation_rate*/ {0, 0}, 244 /*reserved2*/ {0, 0} 245}; 246 247static struct scsi_caching_page caching_page_default = { 248 /*page_code*/SMS_CACHING_PAGE, 249 /*page_length*/sizeof(struct scsi_caching_page) - 2, 250 /*flags1*/ SCP_DISC | SCP_WCE, 251 /*ret_priority*/ 0, 252 /*disable_pf_transfer_len*/ {0xff, 0xff}, 253 /*min_prefetch*/ {0, 0}, 254 /*max_prefetch*/ {0xff, 0xff}, 255 /*max_pf_ceiling*/ {0xff, 0xff}, 256 /*flags2*/ 0, 257 /*cache_segments*/ 0, 258 /*cache_seg_size*/ {0, 0}, 259 /*reserved*/ 0, 260 /*non_cache_seg_size*/ {0, 0, 0} 261}; 262 263static struct scsi_caching_page caching_page_changeable = { 264 /*page_code*/SMS_CACHING_PAGE, 265 /*page_length*/sizeof(struct scsi_caching_page) - 2, 266 /*flags1*/ SCP_WCE | SCP_RCD, 267 /*ret_priority*/ 0, 268 /*disable_pf_transfer_len*/ {0, 0}, 269 /*min_prefetch*/ {0, 0}, 270 /*max_prefetch*/ {0, 0}, 271 /*max_pf_ceiling*/ {0, 0}, 272 /*flags2*/ 0, 273 /*cache_segments*/ 0, 274 /*cache_seg_size*/ {0, 0}, 275 /*reserved*/ 0, 276 /*non_cache_seg_size*/ {0, 0, 0} 277}; 278 279static struct scsi_control_page control_page_default = { 280 /*page_code*/SMS_CONTROL_MODE_PAGE, 281 /*page_length*/sizeof(struct scsi_control_page) - 2, 282 /*rlec*/0, 283 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 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*/SCP_QUEUE_ALG_MASK, 296 /*eca_and_aen*/SCP_SWP, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301}; 302 303 304/* 305 * XXX KDM move these into the softc. 306 */ 307static int rcv_sync_msg; 308static int persis_offset; 309static uint8_t ctl_pause_rtr; 310static int ctl_is_single = 1; 311static int index_to_aps_page; 312 313SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314static int worker_threads = -1; 315TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 316SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 317 &worker_threads, 1, "Number of worker threads"); 318static int verbose = 0; 319TUNABLE_INT("kern.cam.ctl.verbose", &verbose); 320SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 321 &verbose, 0, "Show SCSI errors returned to initiator"); 322 323/* 324 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 325 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 326 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 327 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 328 */ 329#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 330 331static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 332 int param); 333static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 334static int ctl_init(void); 335void ctl_shutdown(void); 336static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 337static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 338static void ctl_ioctl_online(void *arg); 339static void ctl_ioctl_offline(void *arg); 340static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 341static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 342static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 343static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 344static int ctl_ioctl_submit_wait(union ctl_io *io); 345static void ctl_ioctl_datamove(union ctl_io *io); 346static void ctl_ioctl_done(union ctl_io *io); 347static void ctl_ioctl_hard_startstop_callback(void *arg, 348 struct cfi_metatask *metatask); 349static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 350static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 351 struct ctl_ooa *ooa_hdr, 352 struct ctl_ooa_entry *kern_entries); 353static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 354 struct thread *td); 355static uint32_t ctl_map_lun(int port_num, uint32_t lun); 356static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 357#ifdef unused 358static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 359 uint32_t targ_target, uint32_t targ_lun, 360 int can_wait); 361static void ctl_kfree_io(union ctl_io *io); 362#endif /* unused */ 363static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 364 struct ctl_be_lun *be_lun, struct ctl_id target_id); 365static int ctl_free_lun(struct ctl_lun *lun); 366static void ctl_create_lun(struct ctl_be_lun *be_lun); 367/** 368static void ctl_failover_change_pages(struct ctl_softc *softc, 369 struct ctl_scsiio *ctsio, int master); 370**/ 371 372static int ctl_do_mode_select(union ctl_io *io); 373static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 374 uint64_t res_key, uint64_t sa_res_key, 375 uint8_t type, uint32_t residx, 376 struct ctl_scsiio *ctsio, 377 struct scsi_per_res_out *cdb, 378 struct scsi_per_res_out_parms* param); 379static void ctl_pro_preempt_other(struct ctl_lun *lun, 380 union ctl_ha_msg *msg); 381static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 382static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 383static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 384static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 385static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 386static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 387static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 388 int alloc_len); 389static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 390 int alloc_len); 391static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 392static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 393static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 394static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 395static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 396static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 397static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 398 union ctl_io *pending_io, union ctl_io *ooa_io); 399static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 400 union ctl_io *starting_io); 401static int ctl_check_blocked(struct ctl_lun *lun); 402static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 403 struct ctl_lun *lun, 404 const struct ctl_cmd_entry *entry, 405 struct ctl_scsiio *ctsio); 406//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 407static void ctl_failover(void); 408static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 409 struct ctl_scsiio *ctsio); 410static int ctl_scsiio(struct ctl_scsiio *ctsio); 411 412static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 413static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 414 ctl_ua_type ua_type); 415static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 416 ctl_ua_type ua_type); 417static int ctl_abort_task(union ctl_io *io); 418static int ctl_abort_task_set(union ctl_io *io); 419static int ctl_i_t_nexus_reset(union ctl_io *io); 420static void ctl_run_task(union ctl_io *io); 421#ifdef CTL_IO_DELAY 422static void ctl_datamove_timer_wakeup(void *arg); 423static void ctl_done_timer_wakeup(void *arg); 424#endif /* CTL_IO_DELAY */ 425 426static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 427static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 428static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 429static void ctl_datamove_remote_write(union ctl_io *io); 430static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 431static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 432static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 433static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 434 ctl_ha_dt_cb callback); 435static void ctl_datamove_remote_read(union ctl_io *io); 436static void ctl_datamove_remote(union ctl_io *io); 437static int ctl_process_done(union ctl_io *io); 438static void ctl_lun_thread(void *arg); 439static void ctl_work_thread(void *arg); 440static void ctl_enqueue_incoming(union ctl_io *io); 441static void ctl_enqueue_rtr(union ctl_io *io); 442static void ctl_enqueue_done(union ctl_io *io); 443static void ctl_enqueue_isc(union ctl_io *io); 444static const struct ctl_cmd_entry * 445 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 446static const struct ctl_cmd_entry * 447 ctl_validate_command(struct ctl_scsiio *ctsio); 448static int ctl_cmd_applicable(uint8_t lun_type, 449 const struct ctl_cmd_entry *entry); 450 451/* 452 * Load the serialization table. This isn't very pretty, but is probably 453 * the easiest way to do it. 454 */ 455#include "ctl_ser_table.c" 456 457/* 458 * We only need to define open, close and ioctl routines for this driver. 459 */ 460static struct cdevsw ctl_cdevsw = { 461 .d_version = D_VERSION, 462 .d_flags = 0, 463 .d_open = ctl_open, 464 .d_close = ctl_close, 465 .d_ioctl = ctl_ioctl, 466 .d_name = "ctl", 467}; 468 469 470MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 471MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 472 473static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 474 475static moduledata_t ctl_moduledata = { 476 "ctl", 477 ctl_module_event_handler, 478 NULL 479}; 480 481DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 482MODULE_VERSION(ctl, 1); 483 484static struct ctl_frontend ioctl_frontend = 485{ 486 .name = "ioctl", 487}; 488 489static void 490ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 491 union ctl_ha_msg *msg_info) 492{ 493 struct ctl_scsiio *ctsio; 494 495 if (msg_info->hdr.original_sc == NULL) { 496 printf("%s: original_sc == NULL!\n", __func__); 497 /* XXX KDM now what? */ 498 return; 499 } 500 501 ctsio = &msg_info->hdr.original_sc->scsiio; 502 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 503 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 504 ctsio->io_hdr.status = msg_info->hdr.status; 505 ctsio->scsi_status = msg_info->scsi.scsi_status; 506 ctsio->sense_len = msg_info->scsi.sense_len; 507 ctsio->sense_residual = msg_info->scsi.sense_residual; 508 ctsio->residual = msg_info->scsi.residual; 509 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 510 sizeof(ctsio->sense_data)); 511 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 512 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 513 ctl_enqueue_isc((union ctl_io *)ctsio); 514} 515 516static void 517ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 518 union ctl_ha_msg *msg_info) 519{ 520 struct ctl_scsiio *ctsio; 521 522 if (msg_info->hdr.serializing_sc == NULL) { 523 printf("%s: serializing_sc == NULL!\n", __func__); 524 /* XXX KDM now what? */ 525 return; 526 } 527 528 ctsio = &msg_info->hdr.serializing_sc->scsiio; 529#if 0 530 /* 531 * Attempt to catch the situation where an I/O has 532 * been freed, and we're using it again. 533 */ 534 if (ctsio->io_hdr.io_type == 0xff) { 535 union ctl_io *tmp_io; 536 tmp_io = (union ctl_io *)ctsio; 537 printf("%s: %p use after free!\n", __func__, 538 ctsio); 539 printf("%s: type %d msg %d cdb %x iptl: " 540 "%d:%d:%d:%d tag 0x%04x " 541 "flag %#x status %x\n", 542 __func__, 543 tmp_io->io_hdr.io_type, 544 tmp_io->io_hdr.msg_type, 545 tmp_io->scsiio.cdb[0], 546 tmp_io->io_hdr.nexus.initid.id, 547 tmp_io->io_hdr.nexus.targ_port, 548 tmp_io->io_hdr.nexus.targ_target.id, 549 tmp_io->io_hdr.nexus.targ_lun, 550 (tmp_io->io_hdr.io_type == 551 CTL_IO_TASK) ? 552 tmp_io->taskio.tag_num : 553 tmp_io->scsiio.tag_num, 554 tmp_io->io_hdr.flags, 555 tmp_io->io_hdr.status); 556 } 557#endif 558 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 559 ctl_enqueue_isc((union ctl_io *)ctsio); 560} 561 562/* 563 * ISC (Inter Shelf Communication) event handler. Events from the HA 564 * subsystem come in here. 565 */ 566static void 567ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 568{ 569 struct ctl_softc *ctl_softc; 570 union ctl_io *io; 571 struct ctl_prio *presio; 572 ctl_ha_status isc_status; 573 574 ctl_softc = control_softc; 575 io = NULL; 576 577 578#if 0 579 printf("CTL: Isc Msg event %d\n", event); 580#endif 581 if (event == CTL_HA_EVT_MSG_RECV) { 582 union ctl_ha_msg msg_info; 583 584 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 585 sizeof(msg_info), /*wait*/ 0); 586#if 0 587 printf("CTL: msg_type %d\n", msg_info.msg_type); 588#endif 589 if (isc_status != 0) { 590 printf("Error receiving message, status = %d\n", 591 isc_status); 592 return; 593 } 594 595 switch (msg_info.hdr.msg_type) { 596 case CTL_MSG_SERIALIZE: 597#if 0 598 printf("Serialize\n"); 599#endif 600 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 601 if (io == NULL) { 602 printf("ctl_isc_event_handler: can't allocate " 603 "ctl_io!\n"); 604 /* Bad Juju */ 605 /* Need to set busy and send msg back */ 606 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 607 msg_info.hdr.status = CTL_SCSI_ERROR; 608 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 609 msg_info.scsi.sense_len = 0; 610 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 611 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 612 } 613 goto bailout; 614 } 615 ctl_zero_io(io); 616 // populate ctsio from msg_info 617 io->io_hdr.io_type = CTL_IO_SCSI; 618 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 619 io->io_hdr.original_sc = msg_info.hdr.original_sc; 620#if 0 621 printf("pOrig %x\n", (int)msg_info.original_sc); 622#endif 623 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 624 CTL_FLAG_IO_ACTIVE; 625 /* 626 * If we're in serialization-only mode, we don't 627 * want to go through full done processing. Thus 628 * the COPY flag. 629 * 630 * XXX KDM add another flag that is more specific. 631 */ 632 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 633 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 634 io->io_hdr.nexus = msg_info.hdr.nexus; 635#if 0 636 printf("targ %d, port %d, iid %d, lun %d\n", 637 io->io_hdr.nexus.targ_target.id, 638 io->io_hdr.nexus.targ_port, 639 io->io_hdr.nexus.initid.id, 640 io->io_hdr.nexus.targ_lun); 641#endif 642 io->scsiio.tag_num = msg_info.scsi.tag_num; 643 io->scsiio.tag_type = msg_info.scsi.tag_type; 644 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 645 CTL_MAX_CDBLEN); 646 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 647 const struct ctl_cmd_entry *entry; 648 649 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 650 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 651 io->io_hdr.flags |= 652 entry->flags & CTL_FLAG_DATA_MASK; 653 } 654 ctl_enqueue_isc(io); 655 break; 656 657 /* Performed on the Originating SC, XFER mode only */ 658 case CTL_MSG_DATAMOVE: { 659 struct ctl_sg_entry *sgl; 660 int i, j; 661 662 io = msg_info.hdr.original_sc; 663 if (io == NULL) { 664 printf("%s: original_sc == NULL!\n", __func__); 665 /* XXX KDM do something here */ 666 break; 667 } 668 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 669 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 670 /* 671 * Keep track of this, we need to send it back over 672 * when the datamove is complete. 673 */ 674 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 675 676 if (msg_info.dt.sg_sequence == 0) { 677 /* 678 * XXX KDM we use the preallocated S/G list 679 * here, but we'll need to change this to 680 * dynamic allocation if we need larger S/G 681 * lists. 682 */ 683 if (msg_info.dt.kern_sg_entries > 684 sizeof(io->io_hdr.remote_sglist) / 685 sizeof(io->io_hdr.remote_sglist[0])) { 686 printf("%s: number of S/G entries " 687 "needed %u > allocated num %zd\n", 688 __func__, 689 msg_info.dt.kern_sg_entries, 690 sizeof(io->io_hdr.remote_sglist)/ 691 sizeof(io->io_hdr.remote_sglist[0])); 692 693 /* 694 * XXX KDM send a message back to 695 * the other side to shut down the 696 * DMA. The error will come back 697 * through via the normal channel. 698 */ 699 break; 700 } 701 sgl = io->io_hdr.remote_sglist; 702 memset(sgl, 0, 703 sizeof(io->io_hdr.remote_sglist)); 704 705 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 706 707 io->scsiio.kern_sg_entries = 708 msg_info.dt.kern_sg_entries; 709 io->scsiio.rem_sg_entries = 710 msg_info.dt.kern_sg_entries; 711 io->scsiio.kern_data_len = 712 msg_info.dt.kern_data_len; 713 io->scsiio.kern_total_len = 714 msg_info.dt.kern_total_len; 715 io->scsiio.kern_data_resid = 716 msg_info.dt.kern_data_resid; 717 io->scsiio.kern_rel_offset = 718 msg_info.dt.kern_rel_offset; 719 /* 720 * Clear out per-DMA flags. 721 */ 722 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 723 /* 724 * Add per-DMA flags that are set for this 725 * particular DMA request. 726 */ 727 io->io_hdr.flags |= msg_info.dt.flags & 728 CTL_FLAG_RDMA_MASK; 729 } else 730 sgl = (struct ctl_sg_entry *) 731 io->scsiio.kern_data_ptr; 732 733 for (i = msg_info.dt.sent_sg_entries, j = 0; 734 i < (msg_info.dt.sent_sg_entries + 735 msg_info.dt.cur_sg_entries); i++, j++) { 736 sgl[i].addr = msg_info.dt.sg_list[j].addr; 737 sgl[i].len = msg_info.dt.sg_list[j].len; 738 739#if 0 740 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 741 __func__, 742 msg_info.dt.sg_list[j].addr, 743 msg_info.dt.sg_list[j].len, 744 sgl[i].addr, sgl[i].len, j, i); 745#endif 746 } 747#if 0 748 memcpy(&sgl[msg_info.dt.sent_sg_entries], 749 msg_info.dt.sg_list, 750 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 751#endif 752 753 /* 754 * If this is the last piece of the I/O, we've got 755 * the full S/G list. Queue processing in the thread. 756 * Otherwise wait for the next piece. 757 */ 758 if (msg_info.dt.sg_last != 0) 759 ctl_enqueue_isc(io); 760 break; 761 } 762 /* Performed on the Serializing (primary) SC, XFER mode only */ 763 case CTL_MSG_DATAMOVE_DONE: { 764 if (msg_info.hdr.serializing_sc == NULL) { 765 printf("%s: serializing_sc == NULL!\n", 766 __func__); 767 /* XXX KDM now what? */ 768 break; 769 } 770 /* 771 * We grab the sense information here in case 772 * there was a failure, so we can return status 773 * back to the initiator. 774 */ 775 io = msg_info.hdr.serializing_sc; 776 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 777 io->io_hdr.status = msg_info.hdr.status; 778 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 779 io->scsiio.sense_len = msg_info.scsi.sense_len; 780 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 781 io->io_hdr.port_status = msg_info.scsi.fetd_status; 782 io->scsiio.residual = msg_info.scsi.residual; 783 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 784 sizeof(io->scsiio.sense_data)); 785 ctl_enqueue_isc(io); 786 break; 787 } 788 789 /* Preformed on Originating SC, SER_ONLY mode */ 790 case CTL_MSG_R2R: 791 io = msg_info.hdr.original_sc; 792 if (io == NULL) { 793 printf("%s: Major Bummer\n", __func__); 794 return; 795 } else { 796#if 0 797 printf("pOrig %x\n",(int) ctsio); 798#endif 799 } 800 io->io_hdr.msg_type = CTL_MSG_R2R; 801 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 802 ctl_enqueue_isc(io); 803 break; 804 805 /* 806 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 807 * mode. 808 * Performed on the Originating (i.e. secondary) SC in XFER 809 * mode 810 */ 811 case CTL_MSG_FINISH_IO: 812 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 813 ctl_isc_handler_finish_xfer(ctl_softc, 814 &msg_info); 815 else 816 ctl_isc_handler_finish_ser_only(ctl_softc, 817 &msg_info); 818 break; 819 820 /* Preformed on Originating SC */ 821 case CTL_MSG_BAD_JUJU: 822 io = msg_info.hdr.original_sc; 823 if (io == NULL) { 824 printf("%s: Bad JUJU!, original_sc is NULL!\n", 825 __func__); 826 break; 827 } 828 ctl_copy_sense_data(&msg_info, io); 829 /* 830 * IO should have already been cleaned up on other 831 * SC so clear this flag so we won't send a message 832 * back to finish the IO there. 833 */ 834 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 835 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 836 837 /* io = msg_info.hdr.serializing_sc; */ 838 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 839 ctl_enqueue_isc(io); 840 break; 841 842 /* Handle resets sent from the other side */ 843 case CTL_MSG_MANAGE_TASKS: { 844 struct ctl_taskio *taskio; 845 taskio = (struct ctl_taskio *)ctl_alloc_io( 846 (void *)ctl_softc->othersc_pool); 847 if (taskio == NULL) { 848 printf("ctl_isc_event_handler: can't allocate " 849 "ctl_io!\n"); 850 /* Bad Juju */ 851 /* should I just call the proper reset func 852 here??? */ 853 goto bailout; 854 } 855 ctl_zero_io((union ctl_io *)taskio); 856 taskio->io_hdr.io_type = CTL_IO_TASK; 857 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 858 taskio->io_hdr.nexus = msg_info.hdr.nexus; 859 taskio->task_action = msg_info.task.task_action; 860 taskio->tag_num = msg_info.task.tag_num; 861 taskio->tag_type = msg_info.task.tag_type; 862#ifdef CTL_TIME_IO 863 taskio->io_hdr.start_time = time_uptime; 864 getbintime(&taskio->io_hdr.start_bt); 865#if 0 866 cs_prof_gettime(&taskio->io_hdr.start_ticks); 867#endif 868#endif /* CTL_TIME_IO */ 869 ctl_run_task((union ctl_io *)taskio); 870 break; 871 } 872 /* Persistent Reserve action which needs attention */ 873 case CTL_MSG_PERS_ACTION: 874 presio = (struct ctl_prio *)ctl_alloc_io( 875 (void *)ctl_softc->othersc_pool); 876 if (presio == NULL) { 877 printf("ctl_isc_event_handler: can't allocate " 878 "ctl_io!\n"); 879 /* Bad Juju */ 880 /* Need to set busy and send msg back */ 881 goto bailout; 882 } 883 ctl_zero_io((union ctl_io *)presio); 884 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 885 presio->pr_msg = msg_info.pr; 886 ctl_enqueue_isc((union ctl_io *)presio); 887 break; 888 case CTL_MSG_SYNC_FE: 889 rcv_sync_msg = 1; 890 break; 891 case CTL_MSG_APS_LOCK: { 892 // It's quicker to execute this then to 893 // queue it. 894 struct ctl_lun *lun; 895 struct ctl_page_index *page_index; 896 struct copan_aps_subpage *current_sp; 897 uint32_t targ_lun; 898 899 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 900 lun = ctl_softc->ctl_luns[targ_lun]; 901 mtx_lock(&lun->lun_lock); 902 page_index = &lun->mode_pages.index[index_to_aps_page]; 903 current_sp = (struct copan_aps_subpage *) 904 (page_index->page_data + 905 (page_index->page_len * CTL_PAGE_CURRENT)); 906 907 current_sp->lock_active = msg_info.aps.lock_flag; 908 mtx_unlock(&lun->lun_lock); 909 break; 910 } 911 default: 912 printf("How did I get here?\n"); 913 } 914 } else if (event == CTL_HA_EVT_MSG_SENT) { 915 if (param != CTL_HA_STATUS_SUCCESS) { 916 printf("Bad status from ctl_ha_msg_send status %d\n", 917 param); 918 } 919 return; 920 } else if (event == CTL_HA_EVT_DISCONNECT) { 921 printf("CTL: Got a disconnect from Isc\n"); 922 return; 923 } else { 924 printf("ctl_isc_event_handler: Unknown event %d\n", event); 925 return; 926 } 927 928bailout: 929 return; 930} 931 932static void 933ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 934{ 935 struct scsi_sense_data *sense; 936 937 sense = &dest->scsiio.sense_data; 938 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 939 dest->scsiio.scsi_status = src->scsi.scsi_status; 940 dest->scsiio.sense_len = src->scsi.sense_len; 941 dest->io_hdr.status = src->hdr.status; 942} 943 944static int 945ctl_init(void) 946{ 947 struct ctl_softc *softc; 948 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 949 struct ctl_port *port; 950 uint8_t sc_id =0; 951 int i, error, retval; 952 //int isc_retval; 953 954 retval = 0; 955 ctl_pause_rtr = 0; 956 rcv_sync_msg = 0; 957 958 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 959 M_WAITOK | M_ZERO); 960 softc = control_softc; 961 962 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 963 "cam/ctl"); 964 965 softc->dev->si_drv1 = softc; 966 967 /* 968 * By default, return a "bad LUN" peripheral qualifier for unknown 969 * LUNs. The user can override this default using the tunable or 970 * sysctl. See the comment in ctl_inquiry_std() for more details. 971 */ 972 softc->inquiry_pq_no_lun = 1; 973 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 974 &softc->inquiry_pq_no_lun); 975 sysctl_ctx_init(&softc->sysctl_ctx); 976 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 977 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 978 CTLFLAG_RD, 0, "CAM Target Layer"); 979 980 if (softc->sysctl_tree == NULL) { 981 printf("%s: unable to allocate sysctl tree\n", __func__); 982 destroy_dev(softc->dev); 983 free(control_softc, M_DEVBUF); 984 control_softc = NULL; 985 return (ENOMEM); 986 } 987 988 SYSCTL_ADD_INT(&softc->sysctl_ctx, 989 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 990 "inquiry_pq_no_lun", CTLFLAG_RW, 991 &softc->inquiry_pq_no_lun, 0, 992 "Report no lun possible for invalid LUNs"); 993 994 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 995 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 996 softc->open_count = 0; 997 998 /* 999 * Default to actually sending a SYNCHRONIZE CACHE command down to 1000 * the drive. 1001 */ 1002 softc->flags = CTL_FLAG_REAL_SYNC; 1003 1004 /* 1005 * In Copan's HA scheme, the "master" and "slave" roles are 1006 * figured out through the slot the controller is in. Although it 1007 * is an active/active system, someone has to be in charge. 1008 */ 1009#ifdef NEEDTOPORT 1010 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1011#endif 1012 1013 if (sc_id == 0) { 1014 softc->flags |= CTL_FLAG_MASTER_SHELF; 1015 persis_offset = 0; 1016 } else 1017 persis_offset = CTL_MAX_INITIATORS; 1018 1019 /* 1020 * XXX KDM need to figure out where we want to get our target ID 1021 * and WWID. Is it different on each port? 1022 */ 1023 softc->target.id = 0; 1024 softc->target.wwid[0] = 0x12345678; 1025 softc->target.wwid[1] = 0x87654321; 1026 STAILQ_INIT(&softc->lun_list); 1027 STAILQ_INIT(&softc->pending_lun_queue); 1028 STAILQ_INIT(&softc->fe_list); 1029 STAILQ_INIT(&softc->port_list); 1030 STAILQ_INIT(&softc->be_list); 1031 STAILQ_INIT(&softc->io_pools); 1032 ctl_tpc_init(softc); 1033 1034 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1035 &internal_pool)!= 0){ 1036 printf("ctl: can't allocate %d entry internal pool, " 1037 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1038 return (ENOMEM); 1039 } 1040 1041 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1042 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1043 printf("ctl: can't allocate %d entry emergency pool, " 1044 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1045 ctl_pool_free(internal_pool); 1046 return (ENOMEM); 1047 } 1048 1049 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1050 &other_pool) != 0) 1051 { 1052 printf("ctl: can't allocate %d entry other SC pool, " 1053 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1054 ctl_pool_free(internal_pool); 1055 ctl_pool_free(emergency_pool); 1056 return (ENOMEM); 1057 } 1058 1059 softc->internal_pool = internal_pool; 1060 softc->emergency_pool = emergency_pool; 1061 softc->othersc_pool = other_pool; 1062 1063 if (worker_threads <= 0) 1064 worker_threads = max(1, mp_ncpus / 4); 1065 if (worker_threads > CTL_MAX_THREADS) 1066 worker_threads = CTL_MAX_THREADS; 1067 1068 for (i = 0; i < worker_threads; i++) { 1069 struct ctl_thread *thr = &softc->threads[i]; 1070 1071 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1072 thr->ctl_softc = softc; 1073 STAILQ_INIT(&thr->incoming_queue); 1074 STAILQ_INIT(&thr->rtr_queue); 1075 STAILQ_INIT(&thr->done_queue); 1076 STAILQ_INIT(&thr->isc_queue); 1077 1078 error = kproc_kthread_add(ctl_work_thread, thr, 1079 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1080 if (error != 0) { 1081 printf("error creating CTL work thread!\n"); 1082 ctl_pool_free(internal_pool); 1083 ctl_pool_free(emergency_pool); 1084 ctl_pool_free(other_pool); 1085 return (error); 1086 } 1087 } 1088 error = kproc_kthread_add(ctl_lun_thread, softc, 1089 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1090 if (error != 0) { 1091 printf("error creating CTL lun thread!\n"); 1092 ctl_pool_free(internal_pool); 1093 ctl_pool_free(emergency_pool); 1094 ctl_pool_free(other_pool); 1095 return (error); 1096 } 1097 if (bootverbose) 1098 printf("ctl: CAM Target Layer loaded\n"); 1099 1100 /* 1101 * Initialize the ioctl front end. 1102 */ 1103 ctl_frontend_register(&ioctl_frontend); 1104 port = &softc->ioctl_info.port; 1105 port->frontend = &ioctl_frontend; 1106 sprintf(softc->ioctl_info.port_name, "ioctl"); 1107 port->port_type = CTL_PORT_IOCTL; 1108 port->num_requested_ctl_io = 100; 1109 port->port_name = softc->ioctl_info.port_name; 1110 port->port_online = ctl_ioctl_online; 1111 port->port_offline = ctl_ioctl_offline; 1112 port->onoff_arg = &softc->ioctl_info; 1113 port->lun_enable = ctl_ioctl_lun_enable; 1114 port->lun_disable = ctl_ioctl_lun_disable; 1115 port->targ_lun_arg = &softc->ioctl_info; 1116 port->fe_datamove = ctl_ioctl_datamove; 1117 port->fe_done = ctl_ioctl_done; 1118 port->max_targets = 15; 1119 port->max_target_id = 15; 1120 1121 if (ctl_port_register(&softc->ioctl_info.port, 1122 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1123 printf("ctl: ioctl front end registration failed, will " 1124 "continue anyway\n"); 1125 } 1126 1127#ifdef CTL_IO_DELAY 1128 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1129 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1130 sizeof(struct callout), CTL_TIMER_BYTES); 1131 return (EINVAL); 1132 } 1133#endif /* CTL_IO_DELAY */ 1134 1135 return (0); 1136} 1137 1138void 1139ctl_shutdown(void) 1140{ 1141 struct ctl_softc *softc; 1142 struct ctl_lun *lun, *next_lun; 1143 struct ctl_io_pool *pool; 1144 1145 softc = (struct ctl_softc *)control_softc; 1146 1147 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1148 printf("ctl: ioctl front end deregistration failed\n"); 1149 1150 mtx_lock(&softc->ctl_lock); 1151 1152 /* 1153 * Free up each LUN. 1154 */ 1155 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1156 next_lun = STAILQ_NEXT(lun, links); 1157 ctl_free_lun(lun); 1158 } 1159 1160 mtx_unlock(&softc->ctl_lock); 1161 1162 ctl_frontend_deregister(&ioctl_frontend); 1163 1164 /* 1165 * This will rip the rug out from under any FETDs or anyone else 1166 * that has a pool allocated. Since we increment our module 1167 * refcount any time someone outside the main CTL module allocates 1168 * a pool, we shouldn't have any problems here. The user won't be 1169 * able to unload the CTL module until client modules have 1170 * successfully unloaded. 1171 */ 1172 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1173 ctl_pool_free(pool); 1174 1175#if 0 1176 ctl_shutdown_thread(softc->work_thread); 1177 mtx_destroy(&softc->queue_lock); 1178#endif 1179 1180 ctl_tpc_shutdown(softc); 1181 mtx_destroy(&softc->pool_lock); 1182 mtx_destroy(&softc->ctl_lock); 1183 1184 destroy_dev(softc->dev); 1185 1186 sysctl_ctx_free(&softc->sysctl_ctx); 1187 1188 free(control_softc, M_DEVBUF); 1189 control_softc = NULL; 1190 1191 if (bootverbose) 1192 printf("ctl: CAM Target Layer unloaded\n"); 1193} 1194 1195static int 1196ctl_module_event_handler(module_t mod, int what, void *arg) 1197{ 1198 1199 switch (what) { 1200 case MOD_LOAD: 1201 return (ctl_init()); 1202 case MOD_UNLOAD: 1203 return (EBUSY); 1204 default: 1205 return (EOPNOTSUPP); 1206 } 1207} 1208 1209/* 1210 * XXX KDM should we do some access checks here? Bump a reference count to 1211 * prevent a CTL module from being unloaded while someone has it open? 1212 */ 1213static int 1214ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1215{ 1216 return (0); 1217} 1218 1219static int 1220ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1221{ 1222 return (0); 1223} 1224 1225int 1226ctl_port_enable(ctl_port_type port_type) 1227{ 1228 struct ctl_softc *softc; 1229 struct ctl_port *port; 1230 1231 if (ctl_is_single == 0) { 1232 union ctl_ha_msg msg_info; 1233 int isc_retval; 1234 1235#if 0 1236 printf("%s: HA mode, synchronizing frontend enable\n", 1237 __func__); 1238#endif 1239 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1240 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1241 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1242 printf("Sync msg send error retval %d\n", isc_retval); 1243 } 1244 if (!rcv_sync_msg) { 1245 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1246 sizeof(msg_info), 1); 1247 } 1248#if 0 1249 printf("CTL:Frontend Enable\n"); 1250 } else { 1251 printf("%s: single mode, skipping frontend synchronization\n", 1252 __func__); 1253#endif 1254 } 1255 1256 softc = control_softc; 1257 1258 STAILQ_FOREACH(port, &softc->port_list, links) { 1259 if (port_type & port->port_type) 1260 { 1261#if 0 1262 printf("port %d\n", port->targ_port); 1263#endif 1264 ctl_port_online(port); 1265 } 1266 } 1267 1268 return (0); 1269} 1270 1271int 1272ctl_port_disable(ctl_port_type port_type) 1273{ 1274 struct ctl_softc *softc; 1275 struct ctl_port *port; 1276 1277 softc = control_softc; 1278 1279 STAILQ_FOREACH(port, &softc->port_list, links) { 1280 if (port_type & port->port_type) 1281 ctl_port_offline(port); 1282 } 1283 1284 return (0); 1285} 1286 1287/* 1288 * Returns 0 for success, 1 for failure. 1289 * Currently the only failure mode is if there aren't enough entries 1290 * allocated. So, in case of a failure, look at num_entries_dropped, 1291 * reallocate and try again. 1292 */ 1293int 1294ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1295 int *num_entries_filled, int *num_entries_dropped, 1296 ctl_port_type port_type, int no_virtual) 1297{ 1298 struct ctl_softc *softc; 1299 struct ctl_port *port; 1300 int entries_dropped, entries_filled; 1301 int retval; 1302 int i; 1303 1304 softc = control_softc; 1305 1306 retval = 0; 1307 entries_filled = 0; 1308 entries_dropped = 0; 1309 1310 i = 0; 1311 mtx_lock(&softc->ctl_lock); 1312 STAILQ_FOREACH(port, &softc->port_list, links) { 1313 struct ctl_port_entry *entry; 1314 1315 if ((port->port_type & port_type) == 0) 1316 continue; 1317 1318 if ((no_virtual != 0) 1319 && (port->virtual_port != 0)) 1320 continue; 1321 1322 if (entries_filled >= num_entries_alloced) { 1323 entries_dropped++; 1324 continue; 1325 } 1326 entry = &entries[i]; 1327 1328 entry->port_type = port->port_type; 1329 strlcpy(entry->port_name, port->port_name, 1330 sizeof(entry->port_name)); 1331 entry->physical_port = port->physical_port; 1332 entry->virtual_port = port->virtual_port; 1333 entry->wwnn = port->wwnn; 1334 entry->wwpn = port->wwpn; 1335 1336 i++; 1337 entries_filled++; 1338 } 1339 1340 mtx_unlock(&softc->ctl_lock); 1341 1342 if (entries_dropped > 0) 1343 retval = 1; 1344 1345 *num_entries_dropped = entries_dropped; 1346 *num_entries_filled = entries_filled; 1347 1348 return (retval); 1349} 1350 1351static void 1352ctl_ioctl_online(void *arg) 1353{ 1354 struct ctl_ioctl_info *ioctl_info; 1355 1356 ioctl_info = (struct ctl_ioctl_info *)arg; 1357 1358 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1359} 1360 1361static void 1362ctl_ioctl_offline(void *arg) 1363{ 1364 struct ctl_ioctl_info *ioctl_info; 1365 1366 ioctl_info = (struct ctl_ioctl_info *)arg; 1367 1368 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1369} 1370 1371/* 1372 * Remove an initiator by port number and initiator ID. 1373 * Returns 0 for success, -1 for failure. 1374 */ 1375int 1376ctl_remove_initiator(struct ctl_port *port, int iid) 1377{ 1378 struct ctl_softc *softc = control_softc; 1379 1380 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1381 1382 if (iid > CTL_MAX_INIT_PER_PORT) { 1383 printf("%s: initiator ID %u > maximun %u!\n", 1384 __func__, iid, CTL_MAX_INIT_PER_PORT); 1385 return (-1); 1386 } 1387 1388 mtx_lock(&softc->ctl_lock); 1389 port->wwpn_iid[iid].in_use--; 1390 port->wwpn_iid[iid].last_use = time_uptime; 1391 mtx_unlock(&softc->ctl_lock); 1392 1393 return (0); 1394} 1395 1396/* 1397 * Add an initiator to the initiator map. 1398 * Returns iid for success, < 0 for failure. 1399 */ 1400int 1401ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1402{ 1403 struct ctl_softc *softc = control_softc; 1404 time_t best_time; 1405 int i, best; 1406 1407 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1408 1409 if (iid >= CTL_MAX_INIT_PER_PORT) { 1410 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1411 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1412 free(name, M_CTL); 1413 return (-1); 1414 } 1415 1416 mtx_lock(&softc->ctl_lock); 1417 1418 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1419 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1420 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1421 iid = i; 1422 break; 1423 } 1424 if (name != NULL && port->wwpn_iid[i].name != NULL && 1425 strcmp(name, port->wwpn_iid[i].name) == 0) { 1426 iid = i; 1427 break; 1428 } 1429 } 1430 } 1431 1432 if (iid < 0) { 1433 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1434 if (port->wwpn_iid[i].in_use == 0 && 1435 port->wwpn_iid[i].wwpn == 0 && 1436 port->wwpn_iid[i].name == NULL) { 1437 iid = i; 1438 break; 1439 } 1440 } 1441 } 1442 1443 if (iid < 0) { 1444 best = -1; 1445 best_time = INT32_MAX; 1446 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1447 if (port->wwpn_iid[i].in_use == 0) { 1448 if (port->wwpn_iid[i].last_use < best_time) { 1449 best = i; 1450 best_time = port->wwpn_iid[i].last_use; 1451 } 1452 } 1453 } 1454 iid = best; 1455 } 1456 1457 if (iid < 0) { 1458 mtx_unlock(&softc->ctl_lock); 1459 free(name, M_CTL); 1460 return (-2); 1461 } 1462 1463 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1464 /* 1465 * This is not an error yet. 1466 */ 1467 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1468#if 0 1469 printf("%s: port %d iid %u WWPN %#jx arrived" 1470 " again\n", __func__, port->targ_port, 1471 iid, (uintmax_t)wwpn); 1472#endif 1473 goto take; 1474 } 1475 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1476 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1477#if 0 1478 printf("%s: port %d iid %u name '%s' arrived" 1479 " again\n", __func__, port->targ_port, 1480 iid, name); 1481#endif 1482 goto take; 1483 } 1484 1485 /* 1486 * This is an error, but what do we do about it? The 1487 * driver is telling us we have a new WWPN for this 1488 * initiator ID, so we pretty much need to use it. 1489 */ 1490 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1491 " but WWPN %#jx '%s' is still at that address\n", 1492 __func__, port->targ_port, iid, wwpn, name, 1493 (uintmax_t)port->wwpn_iid[iid].wwpn, 1494 port->wwpn_iid[iid].name); 1495 1496 /* 1497 * XXX KDM clear have_ca and ua_pending on each LUN for 1498 * this initiator. 1499 */ 1500 } 1501take: 1502 free(port->wwpn_iid[iid].name, M_CTL); 1503 port->wwpn_iid[iid].name = name; 1504 port->wwpn_iid[iid].wwpn = wwpn; 1505 port->wwpn_iid[iid].in_use++; 1506 mtx_unlock(&softc->ctl_lock); 1507 1508 return (iid); 1509} 1510 1511static int 1512ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1513{ 1514 int len; 1515 1516 switch (port->port_type) { 1517 case CTL_PORT_FC: 1518 { 1519 struct scsi_transportid_fcp *id = 1520 (struct scsi_transportid_fcp *)buf; 1521 if (port->wwpn_iid[iid].wwpn == 0) 1522 return (0); 1523 memset(id, 0, sizeof(*id)); 1524 id->format_protocol = SCSI_PROTO_FC; 1525 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1526 return (sizeof(*id)); 1527 } 1528 case CTL_PORT_ISCSI: 1529 { 1530 struct scsi_transportid_iscsi_port *id = 1531 (struct scsi_transportid_iscsi_port *)buf; 1532 if (port->wwpn_iid[iid].name == NULL) 1533 return (0); 1534 memset(id, 0, 256); 1535 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1536 SCSI_PROTO_ISCSI; 1537 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1538 len = roundup2(min(len, 252), 4); 1539 scsi_ulto2b(len, id->additional_length); 1540 return (sizeof(*id) + len); 1541 } 1542 case CTL_PORT_SAS: 1543 { 1544 struct scsi_transportid_sas *id = 1545 (struct scsi_transportid_sas *)buf; 1546 if (port->wwpn_iid[iid].wwpn == 0) 1547 return (0); 1548 memset(id, 0, sizeof(*id)); 1549 id->format_protocol = SCSI_PROTO_SAS; 1550 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1551 return (sizeof(*id)); 1552 } 1553 default: 1554 { 1555 struct scsi_transportid_spi *id = 1556 (struct scsi_transportid_spi *)buf; 1557 memset(id, 0, sizeof(*id)); 1558 id->format_protocol = SCSI_PROTO_SPI; 1559 scsi_ulto2b(iid, id->scsi_addr); 1560 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1561 return (sizeof(*id)); 1562 } 1563 } 1564} 1565 1566static int 1567ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1568{ 1569 return (0); 1570} 1571 1572static int 1573ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1574{ 1575 return (0); 1576} 1577 1578/* 1579 * Data movement routine for the CTL ioctl frontend port. 1580 */ 1581static int 1582ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1583{ 1584 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1585 struct ctl_sg_entry ext_entry, kern_entry; 1586 int ext_sglen, ext_sg_entries, kern_sg_entries; 1587 int ext_sg_start, ext_offset; 1588 int len_to_copy, len_copied; 1589 int kern_watermark, ext_watermark; 1590 int ext_sglist_malloced; 1591 int i, j; 1592 1593 ext_sglist_malloced = 0; 1594 ext_sg_start = 0; 1595 ext_offset = 0; 1596 1597 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1598 1599 /* 1600 * If this flag is set, fake the data transfer. 1601 */ 1602 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1603 ctsio->ext_data_filled = ctsio->ext_data_len; 1604 goto bailout; 1605 } 1606 1607 /* 1608 * To simplify things here, if we have a single buffer, stick it in 1609 * a S/G entry and just make it a single entry S/G list. 1610 */ 1611 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1612 int len_seen; 1613 1614 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1615 1616 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1617 M_WAITOK); 1618 ext_sglist_malloced = 1; 1619 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1620 ext_sglen) != 0) { 1621 ctl_set_internal_failure(ctsio, 1622 /*sks_valid*/ 0, 1623 /*retry_count*/ 0); 1624 goto bailout; 1625 } 1626 ext_sg_entries = ctsio->ext_sg_entries; 1627 len_seen = 0; 1628 for (i = 0; i < ext_sg_entries; i++) { 1629 if ((len_seen + ext_sglist[i].len) >= 1630 ctsio->ext_data_filled) { 1631 ext_sg_start = i; 1632 ext_offset = ctsio->ext_data_filled - len_seen; 1633 break; 1634 } 1635 len_seen += ext_sglist[i].len; 1636 } 1637 } else { 1638 ext_sglist = &ext_entry; 1639 ext_sglist->addr = ctsio->ext_data_ptr; 1640 ext_sglist->len = ctsio->ext_data_len; 1641 ext_sg_entries = 1; 1642 ext_sg_start = 0; 1643 ext_offset = ctsio->ext_data_filled; 1644 } 1645 1646 if (ctsio->kern_sg_entries > 0) { 1647 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1648 kern_sg_entries = ctsio->kern_sg_entries; 1649 } else { 1650 kern_sglist = &kern_entry; 1651 kern_sglist->addr = ctsio->kern_data_ptr; 1652 kern_sglist->len = ctsio->kern_data_len; 1653 kern_sg_entries = 1; 1654 } 1655 1656 1657 kern_watermark = 0; 1658 ext_watermark = ext_offset; 1659 len_copied = 0; 1660 for (i = ext_sg_start, j = 0; 1661 i < ext_sg_entries && j < kern_sg_entries;) { 1662 uint8_t *ext_ptr, *kern_ptr; 1663 1664 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1665 kern_sglist[j].len - kern_watermark); 1666 1667 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1668 ext_ptr = ext_ptr + ext_watermark; 1669 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1670 /* 1671 * XXX KDM fix this! 1672 */ 1673 panic("need to implement bus address support"); 1674#if 0 1675 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1676#endif 1677 } else 1678 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1679 kern_ptr = kern_ptr + kern_watermark; 1680 1681 kern_watermark += len_to_copy; 1682 ext_watermark += len_to_copy; 1683 1684 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1685 CTL_FLAG_DATA_IN) { 1686 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1687 "bytes to user\n", len_to_copy)); 1688 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1689 "to %p\n", kern_ptr, ext_ptr)); 1690 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1691 ctl_set_internal_failure(ctsio, 1692 /*sks_valid*/ 0, 1693 /*retry_count*/ 0); 1694 goto bailout; 1695 } 1696 } else { 1697 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1698 "bytes from user\n", len_to_copy)); 1699 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1700 "to %p\n", ext_ptr, kern_ptr)); 1701 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1702 ctl_set_internal_failure(ctsio, 1703 /*sks_valid*/ 0, 1704 /*retry_count*/0); 1705 goto bailout; 1706 } 1707 } 1708 1709 len_copied += len_to_copy; 1710 1711 if (ext_sglist[i].len == ext_watermark) { 1712 i++; 1713 ext_watermark = 0; 1714 } 1715 1716 if (kern_sglist[j].len == kern_watermark) { 1717 j++; 1718 kern_watermark = 0; 1719 } 1720 } 1721 1722 ctsio->ext_data_filled += len_copied; 1723 1724 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1725 "kern_sg_entries: %d\n", ext_sg_entries, 1726 kern_sg_entries)); 1727 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1728 "kern_data_len = %d\n", ctsio->ext_data_len, 1729 ctsio->kern_data_len)); 1730 1731 1732 /* XXX KDM set residual?? */ 1733bailout: 1734 1735 if (ext_sglist_malloced != 0) 1736 free(ext_sglist, M_CTL); 1737 1738 return (CTL_RETVAL_COMPLETE); 1739} 1740 1741/* 1742 * Serialize a command that went down the "wrong" side, and so was sent to 1743 * this controller for execution. The logic is a little different than the 1744 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1745 * sent back to the other side, but in the success case, we execute the 1746 * command on this side (XFER mode) or tell the other side to execute it 1747 * (SER_ONLY mode). 1748 */ 1749static int 1750ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1751{ 1752 struct ctl_softc *ctl_softc; 1753 union ctl_ha_msg msg_info; 1754 struct ctl_lun *lun; 1755 int retval = 0; 1756 uint32_t targ_lun; 1757 1758 ctl_softc = control_softc; 1759 1760 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1761 lun = ctl_softc->ctl_luns[targ_lun]; 1762 if (lun==NULL) 1763 { 1764 /* 1765 * Why isn't LUN defined? The other side wouldn't 1766 * send a cmd if the LUN is undefined. 1767 */ 1768 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1769 1770 /* "Logical unit not supported" */ 1771 ctl_set_sense_data(&msg_info.scsi.sense_data, 1772 lun, 1773 /*sense_format*/SSD_TYPE_NONE, 1774 /*current_error*/ 1, 1775 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1776 /*asc*/ 0x25, 1777 /*ascq*/ 0x00, 1778 SSD_ELEM_NONE); 1779 1780 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1781 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1782 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1783 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1784 msg_info.hdr.serializing_sc = NULL; 1785 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1786 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1787 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1788 } 1789 return(1); 1790 1791 } 1792 1793 mtx_lock(&lun->lun_lock); 1794 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1795 1796 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1797 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1798 ooa_links))) { 1799 case CTL_ACTION_BLOCK: 1800 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1801 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1802 blocked_links); 1803 break; 1804 case CTL_ACTION_PASS: 1805 case CTL_ACTION_SKIP: 1806 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1807 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1808 ctl_enqueue_rtr((union ctl_io *)ctsio); 1809 } else { 1810 1811 /* send msg back to other side */ 1812 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1813 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1814 msg_info.hdr.msg_type = CTL_MSG_R2R; 1815#if 0 1816 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1817#endif 1818 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1819 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1820 } 1821 } 1822 break; 1823 case CTL_ACTION_OVERLAP: 1824 /* OVERLAPPED COMMANDS ATTEMPTED */ 1825 ctl_set_sense_data(&msg_info.scsi.sense_data, 1826 lun, 1827 /*sense_format*/SSD_TYPE_NONE, 1828 /*current_error*/ 1, 1829 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1830 /*asc*/ 0x4E, 1831 /*ascq*/ 0x00, 1832 SSD_ELEM_NONE); 1833 1834 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1835 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1836 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1837 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1838 msg_info.hdr.serializing_sc = NULL; 1839 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1840#if 0 1841 printf("BAD JUJU:Major Bummer Overlap\n"); 1842#endif 1843 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1844 retval = 1; 1845 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1846 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1847 } 1848 break; 1849 case CTL_ACTION_OVERLAP_TAG: 1850 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1851 ctl_set_sense_data(&msg_info.scsi.sense_data, 1852 lun, 1853 /*sense_format*/SSD_TYPE_NONE, 1854 /*current_error*/ 1, 1855 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1856 /*asc*/ 0x4D, 1857 /*ascq*/ ctsio->tag_num & 0xff, 1858 SSD_ELEM_NONE); 1859 1860 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1861 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1862 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1863 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1864 msg_info.hdr.serializing_sc = NULL; 1865 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1866#if 0 1867 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1868#endif 1869 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1870 retval = 1; 1871 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1872 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1873 } 1874 break; 1875 case CTL_ACTION_ERROR: 1876 default: 1877 /* "Internal target failure" */ 1878 ctl_set_sense_data(&msg_info.scsi.sense_data, 1879 lun, 1880 /*sense_format*/SSD_TYPE_NONE, 1881 /*current_error*/ 1, 1882 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1883 /*asc*/ 0x44, 1884 /*ascq*/ 0x00, 1885 SSD_ELEM_NONE); 1886 1887 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1888 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1889 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1890 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1891 msg_info.hdr.serializing_sc = NULL; 1892 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1893#if 0 1894 printf("BAD JUJU:Major Bummer HW Error\n"); 1895#endif 1896 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1897 retval = 1; 1898 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1899 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1900 } 1901 break; 1902 } 1903 mtx_unlock(&lun->lun_lock); 1904 return (retval); 1905} 1906 1907static int 1908ctl_ioctl_submit_wait(union ctl_io *io) 1909{ 1910 struct ctl_fe_ioctl_params params; 1911 ctl_fe_ioctl_state last_state; 1912 int done, retval; 1913 1914 retval = 0; 1915 1916 bzero(¶ms, sizeof(params)); 1917 1918 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1919 cv_init(¶ms.sem, "ctlioccv"); 1920 params.state = CTL_IOCTL_INPROG; 1921 last_state = params.state; 1922 1923 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1924 1925 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1926 1927 /* This shouldn't happen */ 1928 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1929 return (retval); 1930 1931 done = 0; 1932 1933 do { 1934 mtx_lock(¶ms.ioctl_mtx); 1935 /* 1936 * Check the state here, and don't sleep if the state has 1937 * already changed (i.e. wakeup has already occured, but we 1938 * weren't waiting yet). 1939 */ 1940 if (params.state == last_state) { 1941 /* XXX KDM cv_wait_sig instead? */ 1942 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1943 } 1944 last_state = params.state; 1945 1946 switch (params.state) { 1947 case CTL_IOCTL_INPROG: 1948 /* Why did we wake up? */ 1949 /* XXX KDM error here? */ 1950 mtx_unlock(¶ms.ioctl_mtx); 1951 break; 1952 case CTL_IOCTL_DATAMOVE: 1953 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1954 1955 /* 1956 * change last_state back to INPROG to avoid 1957 * deadlock on subsequent data moves. 1958 */ 1959 params.state = last_state = CTL_IOCTL_INPROG; 1960 1961 mtx_unlock(¶ms.ioctl_mtx); 1962 ctl_ioctl_do_datamove(&io->scsiio); 1963 /* 1964 * Note that in some cases, most notably writes, 1965 * this will queue the I/O and call us back later. 1966 * In other cases, generally reads, this routine 1967 * will immediately call back and wake us up, 1968 * probably using our own context. 1969 */ 1970 io->scsiio.be_move_done(io); 1971 break; 1972 case CTL_IOCTL_DONE: 1973 mtx_unlock(¶ms.ioctl_mtx); 1974 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1975 done = 1; 1976 break; 1977 default: 1978 mtx_unlock(¶ms.ioctl_mtx); 1979 /* XXX KDM error here? */ 1980 break; 1981 } 1982 } while (done == 0); 1983 1984 mtx_destroy(¶ms.ioctl_mtx); 1985 cv_destroy(¶ms.sem); 1986 1987 return (CTL_RETVAL_COMPLETE); 1988} 1989 1990static void 1991ctl_ioctl_datamove(union ctl_io *io) 1992{ 1993 struct ctl_fe_ioctl_params *params; 1994 1995 params = (struct ctl_fe_ioctl_params *) 1996 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1997 1998 mtx_lock(¶ms->ioctl_mtx); 1999 params->state = CTL_IOCTL_DATAMOVE; 2000 cv_broadcast(¶ms->sem); 2001 mtx_unlock(¶ms->ioctl_mtx); 2002} 2003 2004static void 2005ctl_ioctl_done(union ctl_io *io) 2006{ 2007 struct ctl_fe_ioctl_params *params; 2008 2009 params = (struct ctl_fe_ioctl_params *) 2010 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2011 2012 mtx_lock(¶ms->ioctl_mtx); 2013 params->state = CTL_IOCTL_DONE; 2014 cv_broadcast(¶ms->sem); 2015 mtx_unlock(¶ms->ioctl_mtx); 2016} 2017 2018static void 2019ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2020{ 2021 struct ctl_fe_ioctl_startstop_info *sd_info; 2022 2023 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2024 2025 sd_info->hs_info.status = metatask->status; 2026 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2027 sd_info->hs_info.luns_complete = 2028 metatask->taskinfo.startstop.luns_complete; 2029 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2030 2031 cv_broadcast(&sd_info->sem); 2032} 2033 2034static void 2035ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2036{ 2037 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2038 2039 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2040 2041 mtx_lock(fe_bbr_info->lock); 2042 fe_bbr_info->bbr_info->status = metatask->status; 2043 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2044 fe_bbr_info->wakeup_done = 1; 2045 mtx_unlock(fe_bbr_info->lock); 2046 2047 cv_broadcast(&fe_bbr_info->sem); 2048} 2049 2050/* 2051 * Returns 0 for success, errno for failure. 2052 */ 2053static int 2054ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2055 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2056{ 2057 union ctl_io *io; 2058 int retval; 2059 2060 retval = 0; 2061 2062 mtx_lock(&lun->lun_lock); 2063 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2064 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2065 ooa_links)) { 2066 struct ctl_ooa_entry *entry; 2067 2068 /* 2069 * If we've got more than we can fit, just count the 2070 * remaining entries. 2071 */ 2072 if (*cur_fill_num >= ooa_hdr->alloc_num) 2073 continue; 2074 2075 entry = &kern_entries[*cur_fill_num]; 2076 2077 entry->tag_num = io->scsiio.tag_num; 2078 entry->lun_num = lun->lun; 2079#ifdef CTL_TIME_IO 2080 entry->start_bt = io->io_hdr.start_bt; 2081#endif 2082 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2083 entry->cdb_len = io->scsiio.cdb_len; 2084 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2085 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2086 2087 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2088 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2089 2090 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2091 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2092 2093 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2094 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2095 2096 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2097 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2098 } 2099 mtx_unlock(&lun->lun_lock); 2100 2101 return (retval); 2102} 2103 2104static void * 2105ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2106 size_t error_str_len) 2107{ 2108 void *kptr; 2109 2110 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2111 2112 if (copyin(user_addr, kptr, len) != 0) { 2113 snprintf(error_str, error_str_len, "Error copying %d bytes " 2114 "from user address %p to kernel address %p", len, 2115 user_addr, kptr); 2116 free(kptr, M_CTL); 2117 return (NULL); 2118 } 2119 2120 return (kptr); 2121} 2122 2123static void 2124ctl_free_args(int num_args, struct ctl_be_arg *args) 2125{ 2126 int i; 2127 2128 if (args == NULL) 2129 return; 2130 2131 for (i = 0; i < num_args; i++) { 2132 free(args[i].kname, M_CTL); 2133 free(args[i].kvalue, M_CTL); 2134 } 2135 2136 free(args, M_CTL); 2137} 2138 2139static struct ctl_be_arg * 2140ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2141 char *error_str, size_t error_str_len) 2142{ 2143 struct ctl_be_arg *args; 2144 int i; 2145 2146 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2147 error_str, error_str_len); 2148 2149 if (args == NULL) 2150 goto bailout; 2151 2152 for (i = 0; i < num_args; i++) { 2153 args[i].kname = NULL; 2154 args[i].kvalue = NULL; 2155 } 2156 2157 for (i = 0; i < num_args; i++) { 2158 uint8_t *tmpptr; 2159 2160 args[i].kname = ctl_copyin_alloc(args[i].name, 2161 args[i].namelen, error_str, error_str_len); 2162 if (args[i].kname == NULL) 2163 goto bailout; 2164 2165 if (args[i].kname[args[i].namelen - 1] != '\0') { 2166 snprintf(error_str, error_str_len, "Argument %d " 2167 "name is not NUL-terminated", i); 2168 goto bailout; 2169 } 2170 2171 if (args[i].flags & CTL_BEARG_RD) { 2172 tmpptr = ctl_copyin_alloc(args[i].value, 2173 args[i].vallen, error_str, error_str_len); 2174 if (tmpptr == NULL) 2175 goto bailout; 2176 if ((args[i].flags & CTL_BEARG_ASCII) 2177 && (tmpptr[args[i].vallen - 1] != '\0')) { 2178 snprintf(error_str, error_str_len, "Argument " 2179 "%d value is not NUL-terminated", i); 2180 goto bailout; 2181 } 2182 args[i].kvalue = tmpptr; 2183 } else { 2184 args[i].kvalue = malloc(args[i].vallen, 2185 M_CTL, M_WAITOK | M_ZERO); 2186 } 2187 } 2188 2189 return (args); 2190bailout: 2191 2192 ctl_free_args(num_args, args); 2193 2194 return (NULL); 2195} 2196 2197static void 2198ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2199{ 2200 int i; 2201 2202 for (i = 0; i < num_args; i++) { 2203 if (args[i].flags & CTL_BEARG_WR) 2204 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2205 } 2206} 2207 2208/* 2209 * Escape characters that are illegal or not recommended in XML. 2210 */ 2211int 2212ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2213{ 2214 int retval; 2215 2216 retval = 0; 2217 2218 for (; *str; str++) { 2219 switch (*str) { 2220 case '&': 2221 retval = sbuf_printf(sb, "&"); 2222 break; 2223 case '>': 2224 retval = sbuf_printf(sb, ">"); 2225 break; 2226 case '<': 2227 retval = sbuf_printf(sb, "<"); 2228 break; 2229 default: 2230 retval = sbuf_putc(sb, *str); 2231 break; 2232 } 2233 2234 if (retval != 0) 2235 break; 2236 2237 } 2238 2239 return (retval); 2240} 2241 2242static int 2243ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2244 struct thread *td) 2245{ 2246 struct ctl_softc *softc; 2247 int retval; 2248 2249 softc = control_softc; 2250 2251 retval = 0; 2252 2253 switch (cmd) { 2254 case CTL_IO: { 2255 union ctl_io *io; 2256 void *pool_tmp; 2257 2258 /* 2259 * If we haven't been "enabled", don't allow any SCSI I/O 2260 * to this FETD. 2261 */ 2262 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2263 retval = EPERM; 2264 break; 2265 } 2266 2267 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2268 if (io == NULL) { 2269 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2270 retval = ENOSPC; 2271 break; 2272 } 2273 2274 /* 2275 * Need to save the pool reference so it doesn't get 2276 * spammed by the user's ctl_io. 2277 */ 2278 pool_tmp = io->io_hdr.pool; 2279 2280 memcpy(io, (void *)addr, sizeof(*io)); 2281 2282 io->io_hdr.pool = pool_tmp; 2283 /* 2284 * No status yet, so make sure the status is set properly. 2285 */ 2286 io->io_hdr.status = CTL_STATUS_NONE; 2287 2288 /* 2289 * The user sets the initiator ID, target and LUN IDs. 2290 */ 2291 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2292 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2293 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2294 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2295 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2296 2297 retval = ctl_ioctl_submit_wait(io); 2298 2299 if (retval != 0) { 2300 ctl_free_io(io); 2301 break; 2302 } 2303 2304 memcpy((void *)addr, io, sizeof(*io)); 2305 2306 /* return this to our pool */ 2307 ctl_free_io(io); 2308 2309 break; 2310 } 2311 case CTL_ENABLE_PORT: 2312 case CTL_DISABLE_PORT: 2313 case CTL_SET_PORT_WWNS: { 2314 struct ctl_port *port; 2315 struct ctl_port_entry *entry; 2316 2317 entry = (struct ctl_port_entry *)addr; 2318 2319 mtx_lock(&softc->ctl_lock); 2320 STAILQ_FOREACH(port, &softc->port_list, links) { 2321 int action, done; 2322 2323 action = 0; 2324 done = 0; 2325 2326 if ((entry->port_type == CTL_PORT_NONE) 2327 && (entry->targ_port == port->targ_port)) { 2328 /* 2329 * If the user only wants to enable or 2330 * disable or set WWNs on a specific port, 2331 * do the operation and we're done. 2332 */ 2333 action = 1; 2334 done = 1; 2335 } else if (entry->port_type & port->port_type) { 2336 /* 2337 * Compare the user's type mask with the 2338 * particular frontend type to see if we 2339 * have a match. 2340 */ 2341 action = 1; 2342 done = 0; 2343 2344 /* 2345 * Make sure the user isn't trying to set 2346 * WWNs on multiple ports at the same time. 2347 */ 2348 if (cmd == CTL_SET_PORT_WWNS) { 2349 printf("%s: Can't set WWNs on " 2350 "multiple ports\n", __func__); 2351 retval = EINVAL; 2352 break; 2353 } 2354 } 2355 if (action != 0) { 2356 /* 2357 * XXX KDM we have to drop the lock here, 2358 * because the online/offline operations 2359 * can potentially block. We need to 2360 * reference count the frontends so they 2361 * can't go away, 2362 */ 2363 mtx_unlock(&softc->ctl_lock); 2364 2365 if (cmd == CTL_ENABLE_PORT) { 2366 struct ctl_lun *lun; 2367 2368 STAILQ_FOREACH(lun, &softc->lun_list, 2369 links) { 2370 port->lun_enable(port->targ_lun_arg, 2371 lun->target, 2372 lun->lun); 2373 } 2374 2375 ctl_port_online(port); 2376 } else if (cmd == CTL_DISABLE_PORT) { 2377 struct ctl_lun *lun; 2378 2379 ctl_port_offline(port); 2380 2381 STAILQ_FOREACH(lun, &softc->lun_list, 2382 links) { 2383 port->lun_disable( 2384 port->targ_lun_arg, 2385 lun->target, 2386 lun->lun); 2387 } 2388 } 2389 2390 mtx_lock(&softc->ctl_lock); 2391 2392 if (cmd == CTL_SET_PORT_WWNS) 2393 ctl_port_set_wwns(port, 2394 (entry->flags & CTL_PORT_WWNN_VALID) ? 2395 1 : 0, entry->wwnn, 2396 (entry->flags & CTL_PORT_WWPN_VALID) ? 2397 1 : 0, entry->wwpn); 2398 } 2399 if (done != 0) 2400 break; 2401 } 2402 mtx_unlock(&softc->ctl_lock); 2403 break; 2404 } 2405 case CTL_GET_PORT_LIST: { 2406 struct ctl_port *port; 2407 struct ctl_port_list *list; 2408 int i; 2409 2410 list = (struct ctl_port_list *)addr; 2411 2412 if (list->alloc_len != (list->alloc_num * 2413 sizeof(struct ctl_port_entry))) { 2414 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2415 "alloc_num %u * sizeof(struct ctl_port_entry) " 2416 "%zu\n", __func__, list->alloc_len, 2417 list->alloc_num, sizeof(struct ctl_port_entry)); 2418 retval = EINVAL; 2419 break; 2420 } 2421 list->fill_len = 0; 2422 list->fill_num = 0; 2423 list->dropped_num = 0; 2424 i = 0; 2425 mtx_lock(&softc->ctl_lock); 2426 STAILQ_FOREACH(port, &softc->port_list, links) { 2427 struct ctl_port_entry entry, *list_entry; 2428 2429 if (list->fill_num >= list->alloc_num) { 2430 list->dropped_num++; 2431 continue; 2432 } 2433 2434 entry.port_type = port->port_type; 2435 strlcpy(entry.port_name, port->port_name, 2436 sizeof(entry.port_name)); 2437 entry.targ_port = port->targ_port; 2438 entry.physical_port = port->physical_port; 2439 entry.virtual_port = port->virtual_port; 2440 entry.wwnn = port->wwnn; 2441 entry.wwpn = port->wwpn; 2442 if (port->status & CTL_PORT_STATUS_ONLINE) 2443 entry.online = 1; 2444 else 2445 entry.online = 0; 2446 2447 list_entry = &list->entries[i]; 2448 2449 retval = copyout(&entry, list_entry, sizeof(entry)); 2450 if (retval != 0) { 2451 printf("%s: CTL_GET_PORT_LIST: copyout " 2452 "returned %d\n", __func__, retval); 2453 break; 2454 } 2455 i++; 2456 list->fill_num++; 2457 list->fill_len += sizeof(entry); 2458 } 2459 mtx_unlock(&softc->ctl_lock); 2460 2461 /* 2462 * If this is non-zero, we had a copyout fault, so there's 2463 * probably no point in attempting to set the status inside 2464 * the structure. 2465 */ 2466 if (retval != 0) 2467 break; 2468 2469 if (list->dropped_num > 0) 2470 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2471 else 2472 list->status = CTL_PORT_LIST_OK; 2473 break; 2474 } 2475 case CTL_DUMP_OOA: { 2476 struct ctl_lun *lun; 2477 union ctl_io *io; 2478 char printbuf[128]; 2479 struct sbuf sb; 2480 2481 mtx_lock(&softc->ctl_lock); 2482 printf("Dumping OOA queues:\n"); 2483 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2484 mtx_lock(&lun->lun_lock); 2485 for (io = (union ctl_io *)TAILQ_FIRST( 2486 &lun->ooa_queue); io != NULL; 2487 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2488 ooa_links)) { 2489 sbuf_new(&sb, printbuf, sizeof(printbuf), 2490 SBUF_FIXEDLEN); 2491 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2492 (intmax_t)lun->lun, 2493 io->scsiio.tag_num, 2494 (io->io_hdr.flags & 2495 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2496 (io->io_hdr.flags & 2497 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2498 (io->io_hdr.flags & 2499 CTL_FLAG_ABORT) ? " ABORT" : "", 2500 (io->io_hdr.flags & 2501 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2502 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2503 sbuf_finish(&sb); 2504 printf("%s\n", sbuf_data(&sb)); 2505 } 2506 mtx_unlock(&lun->lun_lock); 2507 } 2508 printf("OOA queues dump done\n"); 2509 mtx_unlock(&softc->ctl_lock); 2510 break; 2511 } 2512 case CTL_GET_OOA: { 2513 struct ctl_lun *lun; 2514 struct ctl_ooa *ooa_hdr; 2515 struct ctl_ooa_entry *entries; 2516 uint32_t cur_fill_num; 2517 2518 ooa_hdr = (struct ctl_ooa *)addr; 2519 2520 if ((ooa_hdr->alloc_len == 0) 2521 || (ooa_hdr->alloc_num == 0)) { 2522 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2523 "must be non-zero\n", __func__, 2524 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2525 retval = EINVAL; 2526 break; 2527 } 2528 2529 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2530 sizeof(struct ctl_ooa_entry))) { 2531 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2532 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2533 __func__, ooa_hdr->alloc_len, 2534 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2535 retval = EINVAL; 2536 break; 2537 } 2538 2539 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2540 if (entries == NULL) { 2541 printf("%s: could not allocate %d bytes for OOA " 2542 "dump\n", __func__, ooa_hdr->alloc_len); 2543 retval = ENOMEM; 2544 break; 2545 } 2546 2547 mtx_lock(&softc->ctl_lock); 2548 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2549 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2550 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2551 mtx_unlock(&softc->ctl_lock); 2552 free(entries, M_CTL); 2553 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2554 __func__, (uintmax_t)ooa_hdr->lun_num); 2555 retval = EINVAL; 2556 break; 2557 } 2558 2559 cur_fill_num = 0; 2560 2561 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2562 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2563 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2564 ooa_hdr, entries); 2565 if (retval != 0) 2566 break; 2567 } 2568 if (retval != 0) { 2569 mtx_unlock(&softc->ctl_lock); 2570 free(entries, M_CTL); 2571 break; 2572 } 2573 } else { 2574 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2575 2576 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2577 entries); 2578 } 2579 mtx_unlock(&softc->ctl_lock); 2580 2581 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2582 ooa_hdr->fill_len = ooa_hdr->fill_num * 2583 sizeof(struct ctl_ooa_entry); 2584 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2585 if (retval != 0) { 2586 printf("%s: error copying out %d bytes for OOA dump\n", 2587 __func__, ooa_hdr->fill_len); 2588 } 2589 2590 getbintime(&ooa_hdr->cur_bt); 2591 2592 if (cur_fill_num > ooa_hdr->alloc_num) { 2593 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2594 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2595 } else { 2596 ooa_hdr->dropped_num = 0; 2597 ooa_hdr->status = CTL_OOA_OK; 2598 } 2599 2600 free(entries, M_CTL); 2601 break; 2602 } 2603 case CTL_CHECK_OOA: { 2604 union ctl_io *io; 2605 struct ctl_lun *lun; 2606 struct ctl_ooa_info *ooa_info; 2607 2608 2609 ooa_info = (struct ctl_ooa_info *)addr; 2610 2611 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2612 ooa_info->status = CTL_OOA_INVALID_LUN; 2613 break; 2614 } 2615 mtx_lock(&softc->ctl_lock); 2616 lun = softc->ctl_luns[ooa_info->lun_id]; 2617 if (lun == NULL) { 2618 mtx_unlock(&softc->ctl_lock); 2619 ooa_info->status = CTL_OOA_INVALID_LUN; 2620 break; 2621 } 2622 mtx_lock(&lun->lun_lock); 2623 mtx_unlock(&softc->ctl_lock); 2624 ooa_info->num_entries = 0; 2625 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2626 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2627 &io->io_hdr, ooa_links)) { 2628 ooa_info->num_entries++; 2629 } 2630 mtx_unlock(&lun->lun_lock); 2631 2632 ooa_info->status = CTL_OOA_SUCCESS; 2633 2634 break; 2635 } 2636 case CTL_HARD_START: 2637 case CTL_HARD_STOP: { 2638 struct ctl_fe_ioctl_startstop_info ss_info; 2639 struct cfi_metatask *metatask; 2640 struct mtx hs_mtx; 2641 2642 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2643 2644 cv_init(&ss_info.sem, "hard start/stop cv" ); 2645 2646 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2647 if (metatask == NULL) { 2648 retval = ENOMEM; 2649 mtx_destroy(&hs_mtx); 2650 break; 2651 } 2652 2653 if (cmd == CTL_HARD_START) 2654 metatask->tasktype = CFI_TASK_STARTUP; 2655 else 2656 metatask->tasktype = CFI_TASK_SHUTDOWN; 2657 2658 metatask->callback = ctl_ioctl_hard_startstop_callback; 2659 metatask->callback_arg = &ss_info; 2660 2661 cfi_action(metatask); 2662 2663 /* Wait for the callback */ 2664 mtx_lock(&hs_mtx); 2665 cv_wait_sig(&ss_info.sem, &hs_mtx); 2666 mtx_unlock(&hs_mtx); 2667 2668 /* 2669 * All information has been copied from the metatask by the 2670 * time cv_broadcast() is called, so we free the metatask here. 2671 */ 2672 cfi_free_metatask(metatask); 2673 2674 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2675 2676 mtx_destroy(&hs_mtx); 2677 break; 2678 } 2679 case CTL_BBRREAD: { 2680 struct ctl_bbrread_info *bbr_info; 2681 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2682 struct mtx bbr_mtx; 2683 struct cfi_metatask *metatask; 2684 2685 bbr_info = (struct ctl_bbrread_info *)addr; 2686 2687 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2688 2689 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2690 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2691 2692 fe_bbr_info.bbr_info = bbr_info; 2693 fe_bbr_info.lock = &bbr_mtx; 2694 2695 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2696 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2697 2698 if (metatask == NULL) { 2699 mtx_destroy(&bbr_mtx); 2700 cv_destroy(&fe_bbr_info.sem); 2701 retval = ENOMEM; 2702 break; 2703 } 2704 metatask->tasktype = CFI_TASK_BBRREAD; 2705 metatask->callback = ctl_ioctl_bbrread_callback; 2706 metatask->callback_arg = &fe_bbr_info; 2707 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2708 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2709 metatask->taskinfo.bbrread.len = bbr_info->len; 2710 2711 cfi_action(metatask); 2712 2713 mtx_lock(&bbr_mtx); 2714 while (fe_bbr_info.wakeup_done == 0) 2715 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2716 mtx_unlock(&bbr_mtx); 2717 2718 bbr_info->status = metatask->status; 2719 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2720 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2721 memcpy(&bbr_info->sense_data, 2722 &metatask->taskinfo.bbrread.sense_data, 2723 ctl_min(sizeof(bbr_info->sense_data), 2724 sizeof(metatask->taskinfo.bbrread.sense_data))); 2725 2726 cfi_free_metatask(metatask); 2727 2728 mtx_destroy(&bbr_mtx); 2729 cv_destroy(&fe_bbr_info.sem); 2730 2731 break; 2732 } 2733 case CTL_DELAY_IO: { 2734 struct ctl_io_delay_info *delay_info; 2735#ifdef CTL_IO_DELAY 2736 struct ctl_lun *lun; 2737#endif /* CTL_IO_DELAY */ 2738 2739 delay_info = (struct ctl_io_delay_info *)addr; 2740 2741#ifdef CTL_IO_DELAY 2742 mtx_lock(&softc->ctl_lock); 2743 2744 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2745 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2746 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2747 } else { 2748 lun = softc->ctl_luns[delay_info->lun_id]; 2749 mtx_lock(&lun->lun_lock); 2750 2751 delay_info->status = CTL_DELAY_STATUS_OK; 2752 2753 switch (delay_info->delay_type) { 2754 case CTL_DELAY_TYPE_CONT: 2755 break; 2756 case CTL_DELAY_TYPE_ONESHOT: 2757 break; 2758 default: 2759 delay_info->status = 2760 CTL_DELAY_STATUS_INVALID_TYPE; 2761 break; 2762 } 2763 2764 switch (delay_info->delay_loc) { 2765 case CTL_DELAY_LOC_DATAMOVE: 2766 lun->delay_info.datamove_type = 2767 delay_info->delay_type; 2768 lun->delay_info.datamove_delay = 2769 delay_info->delay_secs; 2770 break; 2771 case CTL_DELAY_LOC_DONE: 2772 lun->delay_info.done_type = 2773 delay_info->delay_type; 2774 lun->delay_info.done_delay = 2775 delay_info->delay_secs; 2776 break; 2777 default: 2778 delay_info->status = 2779 CTL_DELAY_STATUS_INVALID_LOC; 2780 break; 2781 } 2782 mtx_unlock(&lun->lun_lock); 2783 } 2784 2785 mtx_unlock(&softc->ctl_lock); 2786#else 2787 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2788#endif /* CTL_IO_DELAY */ 2789 break; 2790 } 2791 case CTL_REALSYNC_SET: { 2792 int *syncstate; 2793 2794 syncstate = (int *)addr; 2795 2796 mtx_lock(&softc->ctl_lock); 2797 switch (*syncstate) { 2798 case 0: 2799 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2800 break; 2801 case 1: 2802 softc->flags |= CTL_FLAG_REAL_SYNC; 2803 break; 2804 default: 2805 retval = EINVAL; 2806 break; 2807 } 2808 mtx_unlock(&softc->ctl_lock); 2809 break; 2810 } 2811 case CTL_REALSYNC_GET: { 2812 int *syncstate; 2813 2814 syncstate = (int*)addr; 2815 2816 mtx_lock(&softc->ctl_lock); 2817 if (softc->flags & CTL_FLAG_REAL_SYNC) 2818 *syncstate = 1; 2819 else 2820 *syncstate = 0; 2821 mtx_unlock(&softc->ctl_lock); 2822 2823 break; 2824 } 2825 case CTL_SETSYNC: 2826 case CTL_GETSYNC: { 2827 struct ctl_sync_info *sync_info; 2828 struct ctl_lun *lun; 2829 2830 sync_info = (struct ctl_sync_info *)addr; 2831 2832 mtx_lock(&softc->ctl_lock); 2833 lun = softc->ctl_luns[sync_info->lun_id]; 2834 if (lun == NULL) { 2835 mtx_unlock(&softc->ctl_lock); 2836 sync_info->status = CTL_GS_SYNC_NO_LUN; 2837 } 2838 /* 2839 * Get or set the sync interval. We're not bounds checking 2840 * in the set case, hopefully the user won't do something 2841 * silly. 2842 */ 2843 mtx_lock(&lun->lun_lock); 2844 mtx_unlock(&softc->ctl_lock); 2845 if (cmd == CTL_GETSYNC) 2846 sync_info->sync_interval = lun->sync_interval; 2847 else 2848 lun->sync_interval = sync_info->sync_interval; 2849 mtx_unlock(&lun->lun_lock); 2850 2851 sync_info->status = CTL_GS_SYNC_OK; 2852 2853 break; 2854 } 2855 case CTL_GETSTATS: { 2856 struct ctl_stats *stats; 2857 struct ctl_lun *lun; 2858 int i; 2859 2860 stats = (struct ctl_stats *)addr; 2861 2862 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2863 stats->alloc_len) { 2864 stats->status = CTL_SS_NEED_MORE_SPACE; 2865 stats->num_luns = softc->num_luns; 2866 break; 2867 } 2868 /* 2869 * XXX KDM no locking here. If the LUN list changes, 2870 * things can blow up. 2871 */ 2872 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2873 i++, lun = STAILQ_NEXT(lun, links)) { 2874 retval = copyout(&lun->stats, &stats->lun_stats[i], 2875 sizeof(lun->stats)); 2876 if (retval != 0) 2877 break; 2878 } 2879 stats->num_luns = softc->num_luns; 2880 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2881 softc->num_luns; 2882 stats->status = CTL_SS_OK; 2883#ifdef CTL_TIME_IO 2884 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2885#else 2886 stats->flags = CTL_STATS_FLAG_NONE; 2887#endif 2888 getnanouptime(&stats->timestamp); 2889 break; 2890 } 2891 case CTL_ERROR_INJECT: { 2892 struct ctl_error_desc *err_desc, *new_err_desc; 2893 struct ctl_lun *lun; 2894 2895 err_desc = (struct ctl_error_desc *)addr; 2896 2897 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2898 M_WAITOK | M_ZERO); 2899 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2900 2901 mtx_lock(&softc->ctl_lock); 2902 lun = softc->ctl_luns[err_desc->lun_id]; 2903 if (lun == NULL) { 2904 mtx_unlock(&softc->ctl_lock); 2905 free(new_err_desc, M_CTL); 2906 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2907 __func__, (uintmax_t)err_desc->lun_id); 2908 retval = EINVAL; 2909 break; 2910 } 2911 mtx_lock(&lun->lun_lock); 2912 mtx_unlock(&softc->ctl_lock); 2913 2914 /* 2915 * We could do some checking here to verify the validity 2916 * of the request, but given the complexity of error 2917 * injection requests, the checking logic would be fairly 2918 * complex. 2919 * 2920 * For now, if the request is invalid, it just won't get 2921 * executed and might get deleted. 2922 */ 2923 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2924 2925 /* 2926 * XXX KDM check to make sure the serial number is unique, 2927 * in case we somehow manage to wrap. That shouldn't 2928 * happen for a very long time, but it's the right thing to 2929 * do. 2930 */ 2931 new_err_desc->serial = lun->error_serial; 2932 err_desc->serial = lun->error_serial; 2933 lun->error_serial++; 2934 2935 mtx_unlock(&lun->lun_lock); 2936 break; 2937 } 2938 case CTL_ERROR_INJECT_DELETE: { 2939 struct ctl_error_desc *delete_desc, *desc, *desc2; 2940 struct ctl_lun *lun; 2941 int delete_done; 2942 2943 delete_desc = (struct ctl_error_desc *)addr; 2944 delete_done = 0; 2945 2946 mtx_lock(&softc->ctl_lock); 2947 lun = softc->ctl_luns[delete_desc->lun_id]; 2948 if (lun == NULL) { 2949 mtx_unlock(&softc->ctl_lock); 2950 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2951 __func__, (uintmax_t)delete_desc->lun_id); 2952 retval = EINVAL; 2953 break; 2954 } 2955 mtx_lock(&lun->lun_lock); 2956 mtx_unlock(&softc->ctl_lock); 2957 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2958 if (desc->serial != delete_desc->serial) 2959 continue; 2960 2961 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2962 links); 2963 free(desc, M_CTL); 2964 delete_done = 1; 2965 } 2966 mtx_unlock(&lun->lun_lock); 2967 if (delete_done == 0) { 2968 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2969 "error serial %ju on LUN %u\n", __func__, 2970 delete_desc->serial, delete_desc->lun_id); 2971 retval = EINVAL; 2972 break; 2973 } 2974 break; 2975 } 2976 case CTL_DUMP_STRUCTS: { 2977 int i, j, k, idx; 2978 struct ctl_port *port; 2979 struct ctl_frontend *fe; 2980 2981 mtx_lock(&softc->ctl_lock); 2982 printf("CTL Persistent Reservation information start:\n"); 2983 for (i = 0; i < CTL_MAX_LUNS; i++) { 2984 struct ctl_lun *lun; 2985 2986 lun = softc->ctl_luns[i]; 2987 2988 if ((lun == NULL) 2989 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2990 continue; 2991 2992 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2993 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2994 idx = j * CTL_MAX_INIT_PER_PORT + k; 2995 if (lun->pr_keys[idx] == 0) 2996 continue; 2997 printf(" LUN %d port %d iid %d key " 2998 "%#jx\n", i, j, k, 2999 (uintmax_t)lun->pr_keys[idx]); 3000 } 3001 } 3002 } 3003 printf("CTL Persistent Reservation information end\n"); 3004 printf("CTL Ports:\n"); 3005 STAILQ_FOREACH(port, &softc->port_list, links) { 3006 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3007 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3008 port->frontend->name, port->port_type, 3009 port->physical_port, port->virtual_port, 3010 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3011 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3012 if (port->wwpn_iid[j].in_use == 0 && 3013 port->wwpn_iid[j].wwpn == 0 && 3014 port->wwpn_iid[j].name == NULL) 3015 continue; 3016 3017 printf(" iid %u use %d WWPN %#jx '%s'\n", 3018 j, port->wwpn_iid[j].in_use, 3019 (uintmax_t)port->wwpn_iid[j].wwpn, 3020 port->wwpn_iid[j].name); 3021 } 3022 } 3023 printf("CTL Port information end\n"); 3024 mtx_unlock(&softc->ctl_lock); 3025 /* 3026 * XXX KDM calling this without a lock. We'd likely want 3027 * to drop the lock before calling the frontend's dump 3028 * routine anyway. 3029 */ 3030 printf("CTL Frontends:\n"); 3031 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3032 printf(" Frontend '%s'\n", fe->name); 3033 if (fe->fe_dump != NULL) 3034 fe->fe_dump(); 3035 } 3036 printf("CTL Frontend information end\n"); 3037 break; 3038 } 3039 case CTL_LUN_REQ: { 3040 struct ctl_lun_req *lun_req; 3041 struct ctl_backend_driver *backend; 3042 3043 lun_req = (struct ctl_lun_req *)addr; 3044 3045 backend = ctl_backend_find(lun_req->backend); 3046 if (backend == NULL) { 3047 lun_req->status = CTL_LUN_ERROR; 3048 snprintf(lun_req->error_str, 3049 sizeof(lun_req->error_str), 3050 "Backend \"%s\" not found.", 3051 lun_req->backend); 3052 break; 3053 } 3054 if (lun_req->num_be_args > 0) { 3055 lun_req->kern_be_args = ctl_copyin_args( 3056 lun_req->num_be_args, 3057 lun_req->be_args, 3058 lun_req->error_str, 3059 sizeof(lun_req->error_str)); 3060 if (lun_req->kern_be_args == NULL) { 3061 lun_req->status = CTL_LUN_ERROR; 3062 break; 3063 } 3064 } 3065 3066 retval = backend->ioctl(dev, cmd, addr, flag, td); 3067 3068 if (lun_req->num_be_args > 0) { 3069 ctl_copyout_args(lun_req->num_be_args, 3070 lun_req->kern_be_args); 3071 ctl_free_args(lun_req->num_be_args, 3072 lun_req->kern_be_args); 3073 } 3074 break; 3075 } 3076 case CTL_LUN_LIST: { 3077 struct sbuf *sb; 3078 struct ctl_lun *lun; 3079 struct ctl_lun_list *list; 3080 struct ctl_option *opt; 3081 3082 list = (struct ctl_lun_list *)addr; 3083 3084 /* 3085 * Allocate a fixed length sbuf here, based on the length 3086 * of the user's buffer. We could allocate an auto-extending 3087 * buffer, and then tell the user how much larger our 3088 * amount of data is than his buffer, but that presents 3089 * some problems: 3090 * 3091 * 1. The sbuf(9) routines use a blocking malloc, and so 3092 * we can't hold a lock while calling them with an 3093 * auto-extending buffer. 3094 * 3095 * 2. There is not currently a LUN reference counting 3096 * mechanism, outside of outstanding transactions on 3097 * the LUN's OOA queue. So a LUN could go away on us 3098 * while we're getting the LUN number, backend-specific 3099 * information, etc. Thus, given the way things 3100 * currently work, we need to hold the CTL lock while 3101 * grabbing LUN information. 3102 * 3103 * So, from the user's standpoint, the best thing to do is 3104 * allocate what he thinks is a reasonable buffer length, 3105 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3106 * double the buffer length and try again. (And repeat 3107 * that until he succeeds.) 3108 */ 3109 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3110 if (sb == NULL) { 3111 list->status = CTL_LUN_LIST_ERROR; 3112 snprintf(list->error_str, sizeof(list->error_str), 3113 "Unable to allocate %d bytes for LUN list", 3114 list->alloc_len); 3115 break; 3116 } 3117 3118 sbuf_printf(sb, "<ctllunlist>\n"); 3119 3120 mtx_lock(&softc->ctl_lock); 3121 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3122 mtx_lock(&lun->lun_lock); 3123 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3124 (uintmax_t)lun->lun); 3125 3126 /* 3127 * Bail out as soon as we see that we've overfilled 3128 * the buffer. 3129 */ 3130 if (retval != 0) 3131 break; 3132 3133 retval = sbuf_printf(sb, "\t<backend_type>%s" 3134 "</backend_type>\n", 3135 (lun->backend == NULL) ? "none" : 3136 lun->backend->name); 3137 3138 if (retval != 0) 3139 break; 3140 3141 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3142 lun->be_lun->lun_type); 3143 3144 if (retval != 0) 3145 break; 3146 3147 if (lun->backend == NULL) { 3148 retval = sbuf_printf(sb, "</lun>\n"); 3149 if (retval != 0) 3150 break; 3151 continue; 3152 } 3153 3154 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3155 (lun->be_lun->maxlba > 0) ? 3156 lun->be_lun->maxlba + 1 : 0); 3157 3158 if (retval != 0) 3159 break; 3160 3161 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3162 lun->be_lun->blocksize); 3163 3164 if (retval != 0) 3165 break; 3166 3167 retval = sbuf_printf(sb, "\t<serial_number>"); 3168 3169 if (retval != 0) 3170 break; 3171 3172 retval = ctl_sbuf_printf_esc(sb, 3173 lun->be_lun->serial_num); 3174 3175 if (retval != 0) 3176 break; 3177 3178 retval = sbuf_printf(sb, "</serial_number>\n"); 3179 3180 if (retval != 0) 3181 break; 3182 3183 retval = sbuf_printf(sb, "\t<device_id>"); 3184 3185 if (retval != 0) 3186 break; 3187 3188 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3189 3190 if (retval != 0) 3191 break; 3192 3193 retval = sbuf_printf(sb, "</device_id>\n"); 3194 3195 if (retval != 0) 3196 break; 3197 3198 if (lun->backend->lun_info != NULL) { 3199 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3200 if (retval != 0) 3201 break; 3202 } 3203 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3204 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3205 opt->name, opt->value, opt->name); 3206 if (retval != 0) 3207 break; 3208 } 3209 3210 retval = sbuf_printf(sb, "</lun>\n"); 3211 3212 if (retval != 0) 3213 break; 3214 mtx_unlock(&lun->lun_lock); 3215 } 3216 if (lun != NULL) 3217 mtx_unlock(&lun->lun_lock); 3218 mtx_unlock(&softc->ctl_lock); 3219 3220 if ((retval != 0) 3221 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3222 retval = 0; 3223 sbuf_delete(sb); 3224 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3225 snprintf(list->error_str, sizeof(list->error_str), 3226 "Out of space, %d bytes is too small", 3227 list->alloc_len); 3228 break; 3229 } 3230 3231 sbuf_finish(sb); 3232 3233 retval = copyout(sbuf_data(sb), list->lun_xml, 3234 sbuf_len(sb) + 1); 3235 3236 list->fill_len = sbuf_len(sb) + 1; 3237 list->status = CTL_LUN_LIST_OK; 3238 sbuf_delete(sb); 3239 break; 3240 } 3241 case CTL_ISCSI: { 3242 struct ctl_iscsi *ci; 3243 struct ctl_frontend *fe; 3244 3245 ci = (struct ctl_iscsi *)addr; 3246 3247 fe = ctl_frontend_find("iscsi"); 3248 if (fe == NULL) { 3249 ci->status = CTL_ISCSI_ERROR; 3250 snprintf(ci->error_str, sizeof(ci->error_str), 3251 "Frontend \"iscsi\" not found."); 3252 break; 3253 } 3254 3255 retval = fe->ioctl(dev, cmd, addr, flag, td); 3256 break; 3257 } 3258 case CTL_PORT_REQ: { 3259 struct ctl_req *req; 3260 struct ctl_frontend *fe; 3261 3262 req = (struct ctl_req *)addr; 3263 3264 fe = ctl_frontend_find(req->driver); 3265 if (fe == NULL) { 3266 req->status = CTL_LUN_ERROR; 3267 snprintf(req->error_str, sizeof(req->error_str), 3268 "Frontend \"%s\" not found.", req->driver); 3269 break; 3270 } 3271 if (req->num_args > 0) { 3272 req->kern_args = ctl_copyin_args(req->num_args, 3273 req->args, req->error_str, sizeof(req->error_str)); 3274 if (req->kern_args == NULL) { 3275 req->status = CTL_LUN_ERROR; 3276 break; 3277 } 3278 } 3279 3280 retval = fe->ioctl(dev, cmd, addr, flag, td); 3281 3282 if (req->num_args > 0) { 3283 ctl_copyout_args(req->num_args, req->kern_args); 3284 ctl_free_args(req->num_args, req->kern_args); 3285 } 3286 break; 3287 } 3288 case CTL_PORT_LIST: { 3289 struct sbuf *sb; 3290 struct ctl_port *port; 3291 struct ctl_lun_list *list; 3292 struct ctl_option *opt; 3293 3294 list = (struct ctl_lun_list *)addr; 3295 3296 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3297 if (sb == NULL) { 3298 list->status = CTL_LUN_LIST_ERROR; 3299 snprintf(list->error_str, sizeof(list->error_str), 3300 "Unable to allocate %d bytes for LUN list", 3301 list->alloc_len); 3302 break; 3303 } 3304 3305 sbuf_printf(sb, "<ctlportlist>\n"); 3306 3307 mtx_lock(&softc->ctl_lock); 3308 STAILQ_FOREACH(port, &softc->port_list, links) { 3309 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3310 (uintmax_t)port->targ_port); 3311 3312 /* 3313 * Bail out as soon as we see that we've overfilled 3314 * the buffer. 3315 */ 3316 if (retval != 0) 3317 break; 3318 3319 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3320 "</frontend_type>\n", port->frontend->name); 3321 if (retval != 0) 3322 break; 3323 3324 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3325 port->port_type); 3326 if (retval != 0) 3327 break; 3328 3329 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3330 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3331 if (retval != 0) 3332 break; 3333 3334 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3335 port->port_name); 3336 if (retval != 0) 3337 break; 3338 3339 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3340 port->physical_port); 3341 if (retval != 0) 3342 break; 3343 3344 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3345 port->virtual_port); 3346 if (retval != 0) 3347 break; 3348 3349 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3350 (uintmax_t)port->wwnn); 3351 if (retval != 0) 3352 break; 3353 3354 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3355 (uintmax_t)port->wwpn); 3356 if (retval != 0) 3357 break; 3358 3359 if (port->port_info != NULL) { 3360 retval = port->port_info(port->onoff_arg, sb); 3361 if (retval != 0) 3362 break; 3363 } 3364 STAILQ_FOREACH(opt, &port->options, links) { 3365 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3366 opt->name, opt->value, opt->name); 3367 if (retval != 0) 3368 break; 3369 } 3370 3371 retval = sbuf_printf(sb, "</targ_port>\n"); 3372 if (retval != 0) 3373 break; 3374 } 3375 mtx_unlock(&softc->ctl_lock); 3376 3377 if ((retval != 0) 3378 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3379 retval = 0; 3380 sbuf_delete(sb); 3381 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3382 snprintf(list->error_str, sizeof(list->error_str), 3383 "Out of space, %d bytes is too small", 3384 list->alloc_len); 3385 break; 3386 } 3387 3388 sbuf_finish(sb); 3389 3390 retval = copyout(sbuf_data(sb), list->lun_xml, 3391 sbuf_len(sb) + 1); 3392 3393 list->fill_len = sbuf_len(sb) + 1; 3394 list->status = CTL_LUN_LIST_OK; 3395 sbuf_delete(sb); 3396 break; 3397 } 3398 default: { 3399 /* XXX KDM should we fix this? */ 3400#if 0 3401 struct ctl_backend_driver *backend; 3402 unsigned int type; 3403 int found; 3404 3405 found = 0; 3406 3407 /* 3408 * We encode the backend type as the ioctl type for backend 3409 * ioctls. So parse it out here, and then search for a 3410 * backend of this type. 3411 */ 3412 type = _IOC_TYPE(cmd); 3413 3414 STAILQ_FOREACH(backend, &softc->be_list, links) { 3415 if (backend->type == type) { 3416 found = 1; 3417 break; 3418 } 3419 } 3420 if (found == 0) { 3421 printf("ctl: unknown ioctl command %#lx or backend " 3422 "%d\n", cmd, type); 3423 retval = EINVAL; 3424 break; 3425 } 3426 retval = backend->ioctl(dev, cmd, addr, flag, td); 3427#endif 3428 retval = ENOTTY; 3429 break; 3430 } 3431 } 3432 return (retval); 3433} 3434 3435uint32_t 3436ctl_get_initindex(struct ctl_nexus *nexus) 3437{ 3438 if (nexus->targ_port < CTL_MAX_PORTS) 3439 return (nexus->initid.id + 3440 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3441 else 3442 return (nexus->initid.id + 3443 ((nexus->targ_port - CTL_MAX_PORTS) * 3444 CTL_MAX_INIT_PER_PORT)); 3445} 3446 3447uint32_t 3448ctl_get_resindex(struct ctl_nexus *nexus) 3449{ 3450 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3451} 3452 3453uint32_t 3454ctl_port_idx(int port_num) 3455{ 3456 if (port_num < CTL_MAX_PORTS) 3457 return(port_num); 3458 else 3459 return(port_num - CTL_MAX_PORTS); 3460} 3461 3462static uint32_t 3463ctl_map_lun(int port_num, uint32_t lun_id) 3464{ 3465 struct ctl_port *port; 3466 3467 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3468 if (port == NULL) 3469 return (UINT32_MAX); 3470 if (port->lun_map == NULL) 3471 return (lun_id); 3472 return (port->lun_map(port->targ_lun_arg, lun_id)); 3473} 3474 3475static uint32_t 3476ctl_map_lun_back(int port_num, uint32_t lun_id) 3477{ 3478 struct ctl_port *port; 3479 uint32_t i; 3480 3481 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3482 if (port->lun_map == NULL) 3483 return (lun_id); 3484 for (i = 0; i < CTL_MAX_LUNS; i++) { 3485 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3486 return (i); 3487 } 3488 return (UINT32_MAX); 3489} 3490 3491/* 3492 * Note: This only works for bitmask sizes that are at least 32 bits, and 3493 * that are a power of 2. 3494 */ 3495int 3496ctl_ffz(uint32_t *mask, uint32_t size) 3497{ 3498 uint32_t num_chunks, num_pieces; 3499 int i, j; 3500 3501 num_chunks = (size >> 5); 3502 if (num_chunks == 0) 3503 num_chunks++; 3504 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3505 3506 for (i = 0; i < num_chunks; i++) { 3507 for (j = 0; j < num_pieces; j++) { 3508 if ((mask[i] & (1 << j)) == 0) 3509 return ((i << 5) + j); 3510 } 3511 } 3512 3513 return (-1); 3514} 3515 3516int 3517ctl_set_mask(uint32_t *mask, uint32_t bit) 3518{ 3519 uint32_t chunk, piece; 3520 3521 chunk = bit >> 5; 3522 piece = bit % (sizeof(uint32_t) * 8); 3523 3524 if ((mask[chunk] & (1 << piece)) != 0) 3525 return (-1); 3526 else 3527 mask[chunk] |= (1 << piece); 3528 3529 return (0); 3530} 3531 3532int 3533ctl_clear_mask(uint32_t *mask, uint32_t bit) 3534{ 3535 uint32_t chunk, piece; 3536 3537 chunk = bit >> 5; 3538 piece = bit % (sizeof(uint32_t) * 8); 3539 3540 if ((mask[chunk] & (1 << piece)) == 0) 3541 return (-1); 3542 else 3543 mask[chunk] &= ~(1 << piece); 3544 3545 return (0); 3546} 3547 3548int 3549ctl_is_set(uint32_t *mask, uint32_t bit) 3550{ 3551 uint32_t chunk, piece; 3552 3553 chunk = bit >> 5; 3554 piece = bit % (sizeof(uint32_t) * 8); 3555 3556 if ((mask[chunk] & (1 << piece)) == 0) 3557 return (0); 3558 else 3559 return (1); 3560} 3561 3562#ifdef unused 3563/* 3564 * The bus, target and lun are optional, they can be filled in later. 3565 * can_wait is used to determine whether we can wait on the malloc or not. 3566 */ 3567union ctl_io* 3568ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3569 uint32_t targ_lun, int can_wait) 3570{ 3571 union ctl_io *io; 3572 3573 if (can_wait) 3574 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3575 else 3576 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3577 3578 if (io != NULL) { 3579 io->io_hdr.io_type = io_type; 3580 io->io_hdr.targ_port = targ_port; 3581 /* 3582 * XXX KDM this needs to change/go away. We need to move 3583 * to a preallocated pool of ctl_scsiio structures. 3584 */ 3585 io->io_hdr.nexus.targ_target.id = targ_target; 3586 io->io_hdr.nexus.targ_lun = targ_lun; 3587 } 3588 3589 return (io); 3590} 3591 3592void 3593ctl_kfree_io(union ctl_io *io) 3594{ 3595 free(io, M_CTL); 3596} 3597#endif /* unused */ 3598 3599/* 3600 * ctl_softc, pool_type, total_ctl_io are passed in. 3601 * npool is passed out. 3602 */ 3603int 3604ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3605 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3606{ 3607 uint32_t i; 3608 union ctl_io *cur_io, *next_io; 3609 struct ctl_io_pool *pool; 3610 int retval; 3611 3612 retval = 0; 3613 3614 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3615 M_NOWAIT | M_ZERO); 3616 if (pool == NULL) { 3617 retval = ENOMEM; 3618 goto bailout; 3619 } 3620 3621 pool->type = pool_type; 3622 pool->ctl_softc = ctl_softc; 3623 3624 mtx_lock(&ctl_softc->pool_lock); 3625 pool->id = ctl_softc->cur_pool_id++; 3626 mtx_unlock(&ctl_softc->pool_lock); 3627 3628 pool->flags = CTL_POOL_FLAG_NONE; 3629 pool->refcount = 1; /* Reference for validity. */ 3630 STAILQ_INIT(&pool->free_queue); 3631 3632 /* 3633 * XXX KDM other options here: 3634 * - allocate a page at a time 3635 * - allocate one big chunk of memory. 3636 * Page allocation might work well, but would take a little more 3637 * tracking. 3638 */ 3639 for (i = 0; i < total_ctl_io; i++) { 3640 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3641 M_NOWAIT); 3642 if (cur_io == NULL) { 3643 retval = ENOMEM; 3644 break; 3645 } 3646 cur_io->io_hdr.pool = pool; 3647 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3648 pool->total_ctl_io++; 3649 pool->free_ctl_io++; 3650 } 3651 3652 if (retval != 0) { 3653 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3654 cur_io != NULL; cur_io = next_io) { 3655 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3656 links); 3657 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3658 ctl_io_hdr, links); 3659 free(cur_io, M_CTLIO); 3660 } 3661 3662 free(pool, M_CTL); 3663 goto bailout; 3664 } 3665 mtx_lock(&ctl_softc->pool_lock); 3666 ctl_softc->num_pools++; 3667 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3668 /* 3669 * Increment our usage count if this is an external consumer, so we 3670 * can't get unloaded until the external consumer (most likely a 3671 * FETD) unloads and frees his pool. 3672 * 3673 * XXX KDM will this increment the caller's module use count, or 3674 * mine? 3675 */ 3676#if 0 3677 if ((pool_type != CTL_POOL_EMERGENCY) 3678 && (pool_type != CTL_POOL_INTERNAL) 3679 && (pool_type != CTL_POOL_4OTHERSC)) 3680 MOD_INC_USE_COUNT; 3681#endif 3682 3683 mtx_unlock(&ctl_softc->pool_lock); 3684 3685 *npool = pool; 3686 3687bailout: 3688 3689 return (retval); 3690} 3691 3692static int 3693ctl_pool_acquire(struct ctl_io_pool *pool) 3694{ 3695 3696 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3697 3698 if (pool->flags & CTL_POOL_FLAG_INVALID) 3699 return (EINVAL); 3700 3701 pool->refcount++; 3702 3703 return (0); 3704} 3705 3706static void 3707ctl_pool_release(struct ctl_io_pool *pool) 3708{ 3709 struct ctl_softc *ctl_softc = pool->ctl_softc; 3710 union ctl_io *io; 3711 3712 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3713 3714 if (--pool->refcount != 0) 3715 return; 3716 3717 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3718 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3719 links); 3720 free(io, M_CTLIO); 3721 } 3722 3723 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3724 ctl_softc->num_pools--; 3725 3726 /* 3727 * XXX KDM will this decrement the caller's usage count or mine? 3728 */ 3729#if 0 3730 if ((pool->type != CTL_POOL_EMERGENCY) 3731 && (pool->type != CTL_POOL_INTERNAL) 3732 && (pool->type != CTL_POOL_4OTHERSC)) 3733 MOD_DEC_USE_COUNT; 3734#endif 3735 3736 free(pool, M_CTL); 3737} 3738 3739void 3740ctl_pool_free(struct ctl_io_pool *pool) 3741{ 3742 struct ctl_softc *ctl_softc; 3743 3744 if (pool == NULL) 3745 return; 3746 3747 ctl_softc = pool->ctl_softc; 3748 mtx_lock(&ctl_softc->pool_lock); 3749 pool->flags |= CTL_POOL_FLAG_INVALID; 3750 ctl_pool_release(pool); 3751 mtx_unlock(&ctl_softc->pool_lock); 3752} 3753 3754/* 3755 * This routine does not block (except for spinlocks of course). 3756 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3757 * possible. 3758 */ 3759union ctl_io * 3760ctl_alloc_io(void *pool_ref) 3761{ 3762 union ctl_io *io; 3763 struct ctl_softc *ctl_softc; 3764 struct ctl_io_pool *pool, *npool; 3765 struct ctl_io_pool *emergency_pool; 3766 3767 pool = (struct ctl_io_pool *)pool_ref; 3768 3769 if (pool == NULL) { 3770 printf("%s: pool is NULL\n", __func__); 3771 return (NULL); 3772 } 3773 3774 emergency_pool = NULL; 3775 3776 ctl_softc = pool->ctl_softc; 3777 3778 mtx_lock(&ctl_softc->pool_lock); 3779 /* 3780 * First, try to get the io structure from the user's pool. 3781 */ 3782 if (ctl_pool_acquire(pool) == 0) { 3783 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3784 if (io != NULL) { 3785 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3786 pool->total_allocated++; 3787 pool->free_ctl_io--; 3788 mtx_unlock(&ctl_softc->pool_lock); 3789 return (io); 3790 } else 3791 ctl_pool_release(pool); 3792 } 3793 /* 3794 * If he doesn't have any io structures left, search for an 3795 * emergency pool and grab one from there. 3796 */ 3797 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3798 if (npool->type != CTL_POOL_EMERGENCY) 3799 continue; 3800 3801 if (ctl_pool_acquire(npool) != 0) 3802 continue; 3803 3804 emergency_pool = npool; 3805 3806 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3807 if (io != NULL) { 3808 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3809 npool->total_allocated++; 3810 npool->free_ctl_io--; 3811 mtx_unlock(&ctl_softc->pool_lock); 3812 return (io); 3813 } else 3814 ctl_pool_release(npool); 3815 } 3816 3817 /* Drop the spinlock before we malloc */ 3818 mtx_unlock(&ctl_softc->pool_lock); 3819 3820 /* 3821 * The emergency pool (if it exists) didn't have one, so try an 3822 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3823 */ 3824 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3825 if (io != NULL) { 3826 /* 3827 * If the emergency pool exists but is empty, add this 3828 * ctl_io to its list when it gets freed. 3829 */ 3830 if (emergency_pool != NULL) { 3831 mtx_lock(&ctl_softc->pool_lock); 3832 if (ctl_pool_acquire(emergency_pool) == 0) { 3833 io->io_hdr.pool = emergency_pool; 3834 emergency_pool->total_ctl_io++; 3835 /* 3836 * Need to bump this, otherwise 3837 * total_allocated and total_freed won't 3838 * match when we no longer have anything 3839 * outstanding. 3840 */ 3841 emergency_pool->total_allocated++; 3842 } 3843 mtx_unlock(&ctl_softc->pool_lock); 3844 } else 3845 io->io_hdr.pool = NULL; 3846 } 3847 3848 return (io); 3849} 3850 3851void 3852ctl_free_io(union ctl_io *io) 3853{ 3854 if (io == NULL) 3855 return; 3856 3857 /* 3858 * If this ctl_io has a pool, return it to that pool. 3859 */ 3860 if (io->io_hdr.pool != NULL) { 3861 struct ctl_io_pool *pool; 3862 3863 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3864 mtx_lock(&pool->ctl_softc->pool_lock); 3865 io->io_hdr.io_type = 0xff; 3866 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3867 pool->total_freed++; 3868 pool->free_ctl_io++; 3869 ctl_pool_release(pool); 3870 mtx_unlock(&pool->ctl_softc->pool_lock); 3871 } else { 3872 /* 3873 * Otherwise, just free it. We probably malloced it and 3874 * the emergency pool wasn't available. 3875 */ 3876 free(io, M_CTLIO); 3877 } 3878 3879} 3880 3881void 3882ctl_zero_io(union ctl_io *io) 3883{ 3884 void *pool_ref; 3885 3886 if (io == NULL) 3887 return; 3888 3889 /* 3890 * May need to preserve linked list pointers at some point too. 3891 */ 3892 pool_ref = io->io_hdr.pool; 3893 3894 memset(io, 0, sizeof(*io)); 3895 3896 io->io_hdr.pool = pool_ref; 3897} 3898 3899/* 3900 * This routine is currently used for internal copies of ctl_ios that need 3901 * to persist for some reason after we've already returned status to the 3902 * FETD. (Thus the flag set.) 3903 * 3904 * XXX XXX 3905 * Note that this makes a blind copy of all fields in the ctl_io, except 3906 * for the pool reference. This includes any memory that has been 3907 * allocated! That memory will no longer be valid after done has been 3908 * called, so this would be VERY DANGEROUS for command that actually does 3909 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3910 * start and stop commands, which don't transfer any data, so this is not a 3911 * problem. If it is used for anything else, the caller would also need to 3912 * allocate data buffer space and this routine would need to be modified to 3913 * copy the data buffer(s) as well. 3914 */ 3915void 3916ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3917{ 3918 void *pool_ref; 3919 3920 if ((src == NULL) 3921 || (dest == NULL)) 3922 return; 3923 3924 /* 3925 * May need to preserve linked list pointers at some point too. 3926 */ 3927 pool_ref = dest->io_hdr.pool; 3928 3929 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3930 3931 dest->io_hdr.pool = pool_ref; 3932 /* 3933 * We need to know that this is an internal copy, and doesn't need 3934 * to get passed back to the FETD that allocated it. 3935 */ 3936 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3937} 3938 3939#ifdef NEEDTOPORT 3940static void 3941ctl_update_power_subpage(struct copan_power_subpage *page) 3942{ 3943 int num_luns, num_partitions, config_type; 3944 struct ctl_softc *softc; 3945 cs_BOOL_t aor_present, shelf_50pct_power; 3946 cs_raidset_personality_t rs_type; 3947 int max_active_luns; 3948 3949 softc = control_softc; 3950 3951 /* subtract out the processor LUN */ 3952 num_luns = softc->num_luns - 1; 3953 /* 3954 * Default to 7 LUNs active, which was the only number we allowed 3955 * in the past. 3956 */ 3957 max_active_luns = 7; 3958 3959 num_partitions = config_GetRsPartitionInfo(); 3960 config_type = config_GetConfigType(); 3961 shelf_50pct_power = config_GetShelfPowerMode(); 3962 aor_present = config_IsAorRsPresent(); 3963 3964 rs_type = ddb_GetRsRaidType(1); 3965 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3966 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3967 EPRINT(0, "Unsupported RS type %d!", rs_type); 3968 } 3969 3970 3971 page->total_luns = num_luns; 3972 3973 switch (config_type) { 3974 case 40: 3975 /* 3976 * In a 40 drive configuration, it doesn't matter what DC 3977 * cards we have, whether we have AOR enabled or not, 3978 * partitioning or not, or what type of RAIDset we have. 3979 * In that scenario, we can power up every LUN we present 3980 * to the user. 3981 */ 3982 max_active_luns = num_luns; 3983 3984 break; 3985 case 64: 3986 if (shelf_50pct_power == CS_FALSE) { 3987 /* 25% power */ 3988 if (aor_present == CS_TRUE) { 3989 if (rs_type == 3990 CS_RAIDSET_PERSONALITY_RAID5) { 3991 max_active_luns = 7; 3992 } else if (rs_type == 3993 CS_RAIDSET_PERSONALITY_RAID1){ 3994 max_active_luns = 14; 3995 } else { 3996 /* XXX KDM now what?? */ 3997 } 3998 } else { 3999 if (rs_type == 4000 CS_RAIDSET_PERSONALITY_RAID5) { 4001 max_active_luns = 8; 4002 } else if (rs_type == 4003 CS_RAIDSET_PERSONALITY_RAID1){ 4004 max_active_luns = 16; 4005 } else { 4006 /* XXX KDM now what?? */ 4007 } 4008 } 4009 } else { 4010 /* 50% power */ 4011 /* 4012 * With 50% power in a 64 drive configuration, we 4013 * can power all LUNs we present. 4014 */ 4015 max_active_luns = num_luns; 4016 } 4017 break; 4018 case 112: 4019 if (shelf_50pct_power == CS_FALSE) { 4020 /* 25% power */ 4021 if (aor_present == CS_TRUE) { 4022 if (rs_type == 4023 CS_RAIDSET_PERSONALITY_RAID5) { 4024 max_active_luns = 7; 4025 } else if (rs_type == 4026 CS_RAIDSET_PERSONALITY_RAID1){ 4027 max_active_luns = 14; 4028 } else { 4029 /* XXX KDM now what?? */ 4030 } 4031 } else { 4032 if (rs_type == 4033 CS_RAIDSET_PERSONALITY_RAID5) { 4034 max_active_luns = 8; 4035 } else if (rs_type == 4036 CS_RAIDSET_PERSONALITY_RAID1){ 4037 max_active_luns = 16; 4038 } else { 4039 /* XXX KDM now what?? */ 4040 } 4041 } 4042 } else { 4043 /* 50% power */ 4044 if (aor_present == CS_TRUE) { 4045 if (rs_type == 4046 CS_RAIDSET_PERSONALITY_RAID5) { 4047 max_active_luns = 14; 4048 } else if (rs_type == 4049 CS_RAIDSET_PERSONALITY_RAID1){ 4050 /* 4051 * We're assuming here that disk 4052 * caching is enabled, and so we're 4053 * able to power up half of each 4054 * LUN, and cache all writes. 4055 */ 4056 max_active_luns = num_luns; 4057 } else { 4058 /* XXX KDM now what?? */ 4059 } 4060 } else { 4061 if (rs_type == 4062 CS_RAIDSET_PERSONALITY_RAID5) { 4063 max_active_luns = 15; 4064 } else if (rs_type == 4065 CS_RAIDSET_PERSONALITY_RAID1){ 4066 max_active_luns = 30; 4067 } else { 4068 /* XXX KDM now what?? */ 4069 } 4070 } 4071 } 4072 break; 4073 default: 4074 /* 4075 * In this case, we have an unknown configuration, so we 4076 * just use the default from above. 4077 */ 4078 break; 4079 } 4080 4081 page->max_active_luns = max_active_luns; 4082#if 0 4083 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4084 page->total_luns, page->max_active_luns); 4085#endif 4086} 4087#endif /* NEEDTOPORT */ 4088 4089/* 4090 * This routine could be used in the future to load default and/or saved 4091 * mode page parameters for a particuar lun. 4092 */ 4093static int 4094ctl_init_page_index(struct ctl_lun *lun) 4095{ 4096 int i; 4097 struct ctl_page_index *page_index; 4098 struct ctl_softc *softc; 4099 const char *value; 4100 4101 memcpy(&lun->mode_pages.index, page_index_template, 4102 sizeof(page_index_template)); 4103 4104 softc = lun->ctl_softc; 4105 4106 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4107 4108 page_index = &lun->mode_pages.index[i]; 4109 /* 4110 * If this is a disk-only mode page, there's no point in 4111 * setting it up. For some pages, we have to have some 4112 * basic information about the disk in order to calculate the 4113 * mode page data. 4114 */ 4115 if ((lun->be_lun->lun_type != T_DIRECT) 4116 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4117 continue; 4118 4119 switch (page_index->page_code & SMPH_PC_MASK) { 4120 case SMS_FORMAT_DEVICE_PAGE: { 4121 struct scsi_format_page *format_page; 4122 4123 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4124 panic("subpage is incorrect!"); 4125 4126 /* 4127 * Sectors per track are set above. Bytes per 4128 * sector need to be set here on a per-LUN basis. 4129 */ 4130 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4131 &format_page_default, 4132 sizeof(format_page_default)); 4133 memcpy(&lun->mode_pages.format_page[ 4134 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4135 sizeof(format_page_changeable)); 4136 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4137 &format_page_default, 4138 sizeof(format_page_default)); 4139 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4140 &format_page_default, 4141 sizeof(format_page_default)); 4142 4143 format_page = &lun->mode_pages.format_page[ 4144 CTL_PAGE_CURRENT]; 4145 scsi_ulto2b(lun->be_lun->blocksize, 4146 format_page->bytes_per_sector); 4147 4148 format_page = &lun->mode_pages.format_page[ 4149 CTL_PAGE_DEFAULT]; 4150 scsi_ulto2b(lun->be_lun->blocksize, 4151 format_page->bytes_per_sector); 4152 4153 format_page = &lun->mode_pages.format_page[ 4154 CTL_PAGE_SAVED]; 4155 scsi_ulto2b(lun->be_lun->blocksize, 4156 format_page->bytes_per_sector); 4157 4158 page_index->page_data = 4159 (uint8_t *)lun->mode_pages.format_page; 4160 break; 4161 } 4162 case SMS_RIGID_DISK_PAGE: { 4163 struct scsi_rigid_disk_page *rigid_disk_page; 4164 uint32_t sectors_per_cylinder; 4165 uint64_t cylinders; 4166#ifndef __XSCALE__ 4167 int shift; 4168#endif /* !__XSCALE__ */ 4169 4170 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4171 panic("invalid subpage value %d", 4172 page_index->subpage); 4173 4174 /* 4175 * Rotation rate and sectors per track are set 4176 * above. We calculate the cylinders here based on 4177 * capacity. Due to the number of heads and 4178 * sectors per track we're using, smaller arrays 4179 * may turn out to have 0 cylinders. Linux and 4180 * FreeBSD don't pay attention to these mode pages 4181 * to figure out capacity, but Solaris does. It 4182 * seems to deal with 0 cylinders just fine, and 4183 * works out a fake geometry based on the capacity. 4184 */ 4185 memcpy(&lun->mode_pages.rigid_disk_page[ 4186 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4187 sizeof(rigid_disk_page_default)); 4188 memcpy(&lun->mode_pages.rigid_disk_page[ 4189 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4190 sizeof(rigid_disk_page_changeable)); 4191 memcpy(&lun->mode_pages.rigid_disk_page[ 4192 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4193 sizeof(rigid_disk_page_default)); 4194 memcpy(&lun->mode_pages.rigid_disk_page[ 4195 CTL_PAGE_SAVED], &rigid_disk_page_default, 4196 sizeof(rigid_disk_page_default)); 4197 4198 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4199 CTL_DEFAULT_HEADS; 4200 4201 /* 4202 * The divide method here will be more accurate, 4203 * probably, but results in floating point being 4204 * used in the kernel on i386 (__udivdi3()). On the 4205 * XScale, though, __udivdi3() is implemented in 4206 * software. 4207 * 4208 * The shift method for cylinder calculation is 4209 * accurate if sectors_per_cylinder is a power of 4210 * 2. Otherwise it might be slightly off -- you 4211 * might have a bit of a truncation problem. 4212 */ 4213#ifdef __XSCALE__ 4214 cylinders = (lun->be_lun->maxlba + 1) / 4215 sectors_per_cylinder; 4216#else 4217 for (shift = 31; shift > 0; shift--) { 4218 if (sectors_per_cylinder & (1 << shift)) 4219 break; 4220 } 4221 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4222#endif 4223 4224 /* 4225 * We've basically got 3 bytes, or 24 bits for the 4226 * cylinder size in the mode page. If we're over, 4227 * just round down to 2^24. 4228 */ 4229 if (cylinders > 0xffffff) 4230 cylinders = 0xffffff; 4231 4232 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4233 CTL_PAGE_CURRENT]; 4234 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4235 4236 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4237 CTL_PAGE_DEFAULT]; 4238 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4239 4240 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4241 CTL_PAGE_SAVED]; 4242 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4243 4244 page_index->page_data = 4245 (uint8_t *)lun->mode_pages.rigid_disk_page; 4246 break; 4247 } 4248 case SMS_CACHING_PAGE: { 4249 struct scsi_caching_page *caching_page; 4250 4251 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4252 panic("invalid subpage value %d", 4253 page_index->subpage); 4254 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4255 &caching_page_default, 4256 sizeof(caching_page_default)); 4257 memcpy(&lun->mode_pages.caching_page[ 4258 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4259 sizeof(caching_page_changeable)); 4260 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4261 &caching_page_default, 4262 sizeof(caching_page_default)); 4263 caching_page = &lun->mode_pages.caching_page[ 4264 CTL_PAGE_SAVED]; 4265 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4266 if (value != NULL && strcmp(value, "off") == 0) 4267 caching_page->flags1 &= ~SCP_WCE; 4268 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4269 if (value != NULL && strcmp(value, "off") == 0) 4270 caching_page->flags1 |= SCP_RCD; 4271 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4272 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4273 sizeof(caching_page_default)); 4274 page_index->page_data = 4275 (uint8_t *)lun->mode_pages.caching_page; 4276 break; 4277 } 4278 case SMS_CONTROL_MODE_PAGE: { 4279 struct scsi_control_page *control_page; 4280 4281 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4282 panic("invalid subpage value %d", 4283 page_index->subpage); 4284 4285 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4286 &control_page_default, 4287 sizeof(control_page_default)); 4288 memcpy(&lun->mode_pages.control_page[ 4289 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4290 sizeof(control_page_changeable)); 4291 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4292 &control_page_default, 4293 sizeof(control_page_default)); 4294 control_page = &lun->mode_pages.control_page[ 4295 CTL_PAGE_SAVED]; 4296 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4297 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4298 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4299 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4300 } 4301 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4302 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4303 sizeof(control_page_default)); 4304 page_index->page_data = 4305 (uint8_t *)lun->mode_pages.control_page; 4306 break; 4307 4308 } 4309 case SMS_VENDOR_SPECIFIC_PAGE:{ 4310 switch (page_index->subpage) { 4311 case PWR_SUBPAGE_CODE: { 4312 struct copan_power_subpage *current_page, 4313 *saved_page; 4314 4315 memcpy(&lun->mode_pages.power_subpage[ 4316 CTL_PAGE_CURRENT], 4317 &power_page_default, 4318 sizeof(power_page_default)); 4319 memcpy(&lun->mode_pages.power_subpage[ 4320 CTL_PAGE_CHANGEABLE], 4321 &power_page_changeable, 4322 sizeof(power_page_changeable)); 4323 memcpy(&lun->mode_pages.power_subpage[ 4324 CTL_PAGE_DEFAULT], 4325 &power_page_default, 4326 sizeof(power_page_default)); 4327 memcpy(&lun->mode_pages.power_subpage[ 4328 CTL_PAGE_SAVED], 4329 &power_page_default, 4330 sizeof(power_page_default)); 4331 page_index->page_data = 4332 (uint8_t *)lun->mode_pages.power_subpage; 4333 4334 current_page = (struct copan_power_subpage *) 4335 (page_index->page_data + 4336 (page_index->page_len * 4337 CTL_PAGE_CURRENT)); 4338 saved_page = (struct copan_power_subpage *) 4339 (page_index->page_data + 4340 (page_index->page_len * 4341 CTL_PAGE_SAVED)); 4342 break; 4343 } 4344 case APS_SUBPAGE_CODE: { 4345 struct copan_aps_subpage *current_page, 4346 *saved_page; 4347 4348 // This gets set multiple times but 4349 // it should always be the same. It's 4350 // only done during init so who cares. 4351 index_to_aps_page = i; 4352 4353 memcpy(&lun->mode_pages.aps_subpage[ 4354 CTL_PAGE_CURRENT], 4355 &aps_page_default, 4356 sizeof(aps_page_default)); 4357 memcpy(&lun->mode_pages.aps_subpage[ 4358 CTL_PAGE_CHANGEABLE], 4359 &aps_page_changeable, 4360 sizeof(aps_page_changeable)); 4361 memcpy(&lun->mode_pages.aps_subpage[ 4362 CTL_PAGE_DEFAULT], 4363 &aps_page_default, 4364 sizeof(aps_page_default)); 4365 memcpy(&lun->mode_pages.aps_subpage[ 4366 CTL_PAGE_SAVED], 4367 &aps_page_default, 4368 sizeof(aps_page_default)); 4369 page_index->page_data = 4370 (uint8_t *)lun->mode_pages.aps_subpage; 4371 4372 current_page = (struct copan_aps_subpage *) 4373 (page_index->page_data + 4374 (page_index->page_len * 4375 CTL_PAGE_CURRENT)); 4376 saved_page = (struct copan_aps_subpage *) 4377 (page_index->page_data + 4378 (page_index->page_len * 4379 CTL_PAGE_SAVED)); 4380 break; 4381 } 4382 case DBGCNF_SUBPAGE_CODE: { 4383 struct copan_debugconf_subpage *current_page, 4384 *saved_page; 4385 4386 memcpy(&lun->mode_pages.debugconf_subpage[ 4387 CTL_PAGE_CURRENT], 4388 &debugconf_page_default, 4389 sizeof(debugconf_page_default)); 4390 memcpy(&lun->mode_pages.debugconf_subpage[ 4391 CTL_PAGE_CHANGEABLE], 4392 &debugconf_page_changeable, 4393 sizeof(debugconf_page_changeable)); 4394 memcpy(&lun->mode_pages.debugconf_subpage[ 4395 CTL_PAGE_DEFAULT], 4396 &debugconf_page_default, 4397 sizeof(debugconf_page_default)); 4398 memcpy(&lun->mode_pages.debugconf_subpage[ 4399 CTL_PAGE_SAVED], 4400 &debugconf_page_default, 4401 sizeof(debugconf_page_default)); 4402 page_index->page_data = 4403 (uint8_t *)lun->mode_pages.debugconf_subpage; 4404 4405 current_page = (struct copan_debugconf_subpage *) 4406 (page_index->page_data + 4407 (page_index->page_len * 4408 CTL_PAGE_CURRENT)); 4409 saved_page = (struct copan_debugconf_subpage *) 4410 (page_index->page_data + 4411 (page_index->page_len * 4412 CTL_PAGE_SAVED)); 4413 break; 4414 } 4415 default: 4416 panic("invalid subpage value %d", 4417 page_index->subpage); 4418 break; 4419 } 4420 break; 4421 } 4422 default: 4423 panic("invalid page value %d", 4424 page_index->page_code & SMPH_PC_MASK); 4425 break; 4426 } 4427 } 4428 4429 return (CTL_RETVAL_COMPLETE); 4430} 4431 4432/* 4433 * LUN allocation. 4434 * 4435 * Requirements: 4436 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4437 * wants us to allocate the LUN and he can block. 4438 * - ctl_softc is always set 4439 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4440 * 4441 * Returns 0 for success, non-zero (errno) for failure. 4442 */ 4443static int 4444ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4445 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4446{ 4447 struct ctl_lun *nlun, *lun; 4448 struct ctl_port *port; 4449 struct scsi_vpd_id_descriptor *desc; 4450 struct scsi_vpd_id_t10 *t10id; 4451 const char *eui, *naa, *scsiname, *vendor, *value; 4452 int lun_number, i, lun_malloced; 4453 int devidlen, idlen1, idlen2 = 0, len; 4454 4455 if (be_lun == NULL) 4456 return (EINVAL); 4457 4458 /* 4459 * We currently only support Direct Access or Processor LUN types. 4460 */ 4461 switch (be_lun->lun_type) { 4462 case T_DIRECT: 4463 break; 4464 case T_PROCESSOR: 4465 break; 4466 case T_SEQUENTIAL: 4467 case T_CHANGER: 4468 default: 4469 be_lun->lun_config_status(be_lun->be_lun, 4470 CTL_LUN_CONFIG_FAILURE); 4471 break; 4472 } 4473 if (ctl_lun == NULL) { 4474 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4475 lun_malloced = 1; 4476 } else { 4477 lun_malloced = 0; 4478 lun = ctl_lun; 4479 } 4480 4481 memset(lun, 0, sizeof(*lun)); 4482 if (lun_malloced) 4483 lun->flags = CTL_LUN_MALLOCED; 4484 4485 /* Generate LUN ID. */ 4486 devidlen = max(CTL_DEVID_MIN_LEN, 4487 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4488 idlen1 = sizeof(*t10id) + devidlen; 4489 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4490 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4491 if (scsiname != NULL) { 4492 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4493 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4494 } 4495 eui = ctl_get_opt(&be_lun->options, "eui"); 4496 if (eui != NULL) { 4497 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4498 } 4499 naa = ctl_get_opt(&be_lun->options, "naa"); 4500 if (naa != NULL) { 4501 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4502 } 4503 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4504 M_CTL, M_WAITOK | M_ZERO); 4505 lun->lun_devid->len = len; 4506 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4507 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4508 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4509 desc->length = idlen1; 4510 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4511 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4512 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4513 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4514 } else { 4515 strncpy(t10id->vendor, vendor, 4516 min(sizeof(t10id->vendor), strlen(vendor))); 4517 } 4518 strncpy((char *)t10id->vendor_spec_id, 4519 (char *)be_lun->device_id, devidlen); 4520 if (scsiname != NULL) { 4521 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4522 desc->length); 4523 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4524 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4525 SVPD_ID_TYPE_SCSI_NAME; 4526 desc->length = idlen2; 4527 strlcpy(desc->identifier, scsiname, idlen2); 4528 } 4529 if (eui != NULL) { 4530 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4531 desc->length); 4532 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4533 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4534 SVPD_ID_TYPE_EUI64; 4535 desc->length = 8; 4536 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4537 } 4538 if (naa != NULL) { 4539 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4540 desc->length); 4541 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4542 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4543 SVPD_ID_TYPE_NAA; 4544 desc->length = 8; 4545 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4546 } 4547 4548 mtx_lock(&ctl_softc->ctl_lock); 4549 /* 4550 * See if the caller requested a particular LUN number. If so, see 4551 * if it is available. Otherwise, allocate the first available LUN. 4552 */ 4553 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4554 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4555 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4556 mtx_unlock(&ctl_softc->ctl_lock); 4557 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4558 printf("ctl: requested LUN ID %d is higher " 4559 "than CTL_MAX_LUNS - 1 (%d)\n", 4560 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4561 } else { 4562 /* 4563 * XXX KDM return an error, or just assign 4564 * another LUN ID in this case?? 4565 */ 4566 printf("ctl: requested LUN ID %d is already " 4567 "in use\n", be_lun->req_lun_id); 4568 } 4569 if (lun->flags & CTL_LUN_MALLOCED) 4570 free(lun, M_CTL); 4571 be_lun->lun_config_status(be_lun->be_lun, 4572 CTL_LUN_CONFIG_FAILURE); 4573 return (ENOSPC); 4574 } 4575 lun_number = be_lun->req_lun_id; 4576 } else { 4577 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4578 if (lun_number == -1) { 4579 mtx_unlock(&ctl_softc->ctl_lock); 4580 printf("ctl: can't allocate LUN on target %ju, out of " 4581 "LUNs\n", (uintmax_t)target_id.id); 4582 if (lun->flags & CTL_LUN_MALLOCED) 4583 free(lun, M_CTL); 4584 be_lun->lun_config_status(be_lun->be_lun, 4585 CTL_LUN_CONFIG_FAILURE); 4586 return (ENOSPC); 4587 } 4588 } 4589 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4590 4591 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4592 lun->target = target_id; 4593 lun->lun = lun_number; 4594 lun->be_lun = be_lun; 4595 /* 4596 * The processor LUN is always enabled. Disk LUNs come on line 4597 * disabled, and must be enabled by the backend. 4598 */ 4599 lun->flags |= CTL_LUN_DISABLED; 4600 lun->backend = be_lun->be; 4601 be_lun->ctl_lun = lun; 4602 be_lun->lun_id = lun_number; 4603 atomic_add_int(&be_lun->be->num_luns, 1); 4604 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4605 lun->flags |= CTL_LUN_OFFLINE; 4606 4607 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4608 lun->flags |= CTL_LUN_STOPPED; 4609 4610 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4611 lun->flags |= CTL_LUN_INOPERABLE; 4612 4613 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4614 lun->flags |= CTL_LUN_PRIMARY_SC; 4615 4616 value = ctl_get_opt(&be_lun->options, "readonly"); 4617 if (value != NULL && strcmp(value, "on") == 0) 4618 lun->flags |= CTL_LUN_READONLY; 4619 4620 lun->ctl_softc = ctl_softc; 4621 TAILQ_INIT(&lun->ooa_queue); 4622 TAILQ_INIT(&lun->blocked_queue); 4623 STAILQ_INIT(&lun->error_list); 4624 ctl_tpc_lun_init(lun); 4625 4626 /* 4627 * Initialize the mode page index. 4628 */ 4629 ctl_init_page_index(lun); 4630 4631 /* 4632 * Set the poweron UA for all initiators on this LUN only. 4633 */ 4634 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4635 lun->pending_ua[i] = CTL_UA_POWERON; 4636 4637 /* 4638 * Now, before we insert this lun on the lun list, set the lun 4639 * inventory changed UA for all other luns. 4640 */ 4641 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4642 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4643 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4644 } 4645 } 4646 4647 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4648 4649 ctl_softc->ctl_luns[lun_number] = lun; 4650 4651 ctl_softc->num_luns++; 4652 4653 /* Setup statistics gathering */ 4654 lun->stats.device_type = be_lun->lun_type; 4655 lun->stats.lun_number = lun_number; 4656 if (lun->stats.device_type == T_DIRECT) 4657 lun->stats.blocksize = be_lun->blocksize; 4658 else 4659 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4660 for (i = 0;i < CTL_MAX_PORTS;i++) 4661 lun->stats.ports[i].targ_port = i; 4662 4663 mtx_unlock(&ctl_softc->ctl_lock); 4664 4665 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4666 4667 /* 4668 * Run through each registered FETD and bring it online if it isn't 4669 * already. Enable the target ID if it hasn't been enabled, and 4670 * enable this particular LUN. 4671 */ 4672 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4673 int retval; 4674 4675 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4676 if (retval != 0) { 4677 printf("ctl_alloc_lun: FETD %s port %d returned error " 4678 "%d for lun_enable on target %ju lun %d\n", 4679 port->port_name, port->targ_port, retval, 4680 (uintmax_t)target_id.id, lun_number); 4681 } else 4682 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4683 } 4684 return (0); 4685} 4686 4687/* 4688 * Delete a LUN. 4689 * Assumptions: 4690 * - LUN has already been marked invalid and any pending I/O has been taken 4691 * care of. 4692 */ 4693static int 4694ctl_free_lun(struct ctl_lun *lun) 4695{ 4696 struct ctl_softc *softc; 4697#if 0 4698 struct ctl_port *port; 4699#endif 4700 struct ctl_lun *nlun; 4701 int i; 4702 4703 softc = lun->ctl_softc; 4704 4705 mtx_assert(&softc->ctl_lock, MA_OWNED); 4706 4707 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4708 4709 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4710 4711 softc->ctl_luns[lun->lun] = NULL; 4712 4713 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4714 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4715 4716 softc->num_luns--; 4717 4718 /* 4719 * XXX KDM this scheme only works for a single target/multiple LUN 4720 * setup. It needs to be revamped for a multiple target scheme. 4721 * 4722 * XXX KDM this results in port->lun_disable() getting called twice, 4723 * once when ctl_disable_lun() is called, and a second time here. 4724 * We really need to re-think the LUN disable semantics. There 4725 * should probably be several steps/levels to LUN removal: 4726 * - disable 4727 * - invalidate 4728 * - free 4729 * 4730 * Right now we only have a disable method when communicating to 4731 * the front end ports, at least for individual LUNs. 4732 */ 4733#if 0 4734 STAILQ_FOREACH(port, &softc->port_list, links) { 4735 int retval; 4736 4737 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4738 lun->lun); 4739 if (retval != 0) { 4740 printf("ctl_free_lun: FETD %s port %d returned error " 4741 "%d for lun_disable on target %ju lun %jd\n", 4742 port->port_name, port->targ_port, retval, 4743 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4744 } 4745 4746 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4747 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4748 4749 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4750 if (retval != 0) { 4751 printf("ctl_free_lun: FETD %s port %d " 4752 "returned error %d for targ_disable on " 4753 "target %ju\n", port->port_name, 4754 port->targ_port, retval, 4755 (uintmax_t)lun->target.id); 4756 } else 4757 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4758 4759 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4760 continue; 4761 4762#if 0 4763 port->port_offline(port->onoff_arg); 4764 port->status &= ~CTL_PORT_STATUS_ONLINE; 4765#endif 4766 } 4767 } 4768#endif 4769 4770 /* 4771 * Tell the backend to free resources, if this LUN has a backend. 4772 */ 4773 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4774 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4775 4776 ctl_tpc_lun_shutdown(lun); 4777 mtx_destroy(&lun->lun_lock); 4778 free(lun->lun_devid, M_CTL); 4779 if (lun->flags & CTL_LUN_MALLOCED) 4780 free(lun, M_CTL); 4781 4782 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4783 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4784 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4785 } 4786 } 4787 4788 return (0); 4789} 4790 4791static void 4792ctl_create_lun(struct ctl_be_lun *be_lun) 4793{ 4794 struct ctl_softc *ctl_softc; 4795 4796 ctl_softc = control_softc; 4797 4798 /* 4799 * ctl_alloc_lun() should handle all potential failure cases. 4800 */ 4801 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4802} 4803 4804int 4805ctl_add_lun(struct ctl_be_lun *be_lun) 4806{ 4807 struct ctl_softc *ctl_softc = control_softc; 4808 4809 mtx_lock(&ctl_softc->ctl_lock); 4810 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4811 mtx_unlock(&ctl_softc->ctl_lock); 4812 wakeup(&ctl_softc->pending_lun_queue); 4813 4814 return (0); 4815} 4816 4817int 4818ctl_enable_lun(struct ctl_be_lun *be_lun) 4819{ 4820 struct ctl_softc *ctl_softc; 4821 struct ctl_port *port, *nport; 4822 struct ctl_lun *lun; 4823 int retval; 4824 4825 ctl_softc = control_softc; 4826 4827 lun = (struct ctl_lun *)be_lun->ctl_lun; 4828 4829 mtx_lock(&ctl_softc->ctl_lock); 4830 mtx_lock(&lun->lun_lock); 4831 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4832 /* 4833 * eh? Why did we get called if the LUN is already 4834 * enabled? 4835 */ 4836 mtx_unlock(&lun->lun_lock); 4837 mtx_unlock(&ctl_softc->ctl_lock); 4838 return (0); 4839 } 4840 lun->flags &= ~CTL_LUN_DISABLED; 4841 mtx_unlock(&lun->lun_lock); 4842 4843 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4844 nport = STAILQ_NEXT(port, links); 4845 4846 /* 4847 * Drop the lock while we call the FETD's enable routine. 4848 * This can lead to a callback into CTL (at least in the 4849 * case of the internal initiator frontend. 4850 */ 4851 mtx_unlock(&ctl_softc->ctl_lock); 4852 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4853 mtx_lock(&ctl_softc->ctl_lock); 4854 if (retval != 0) { 4855 printf("%s: FETD %s port %d returned error " 4856 "%d for lun_enable on target %ju lun %jd\n", 4857 __func__, port->port_name, port->targ_port, retval, 4858 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4859 } 4860#if 0 4861 else { 4862 /* NOTE: TODO: why does lun enable affect port status? */ 4863 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4864 } 4865#endif 4866 } 4867 4868 mtx_unlock(&ctl_softc->ctl_lock); 4869 4870 return (0); 4871} 4872 4873int 4874ctl_disable_lun(struct ctl_be_lun *be_lun) 4875{ 4876 struct ctl_softc *ctl_softc; 4877 struct ctl_port *port; 4878 struct ctl_lun *lun; 4879 int retval; 4880 4881 ctl_softc = control_softc; 4882 4883 lun = (struct ctl_lun *)be_lun->ctl_lun; 4884 4885 mtx_lock(&ctl_softc->ctl_lock); 4886 mtx_lock(&lun->lun_lock); 4887 if (lun->flags & CTL_LUN_DISABLED) { 4888 mtx_unlock(&lun->lun_lock); 4889 mtx_unlock(&ctl_softc->ctl_lock); 4890 return (0); 4891 } 4892 lun->flags |= CTL_LUN_DISABLED; 4893 mtx_unlock(&lun->lun_lock); 4894 4895 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4896 mtx_unlock(&ctl_softc->ctl_lock); 4897 /* 4898 * Drop the lock before we call the frontend's disable 4899 * routine, to avoid lock order reversals. 4900 * 4901 * XXX KDM what happens if the frontend list changes while 4902 * we're traversing it? It's unlikely, but should be handled. 4903 */ 4904 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4905 lun->lun); 4906 mtx_lock(&ctl_softc->ctl_lock); 4907 if (retval != 0) { 4908 printf("ctl_alloc_lun: FETD %s port %d returned error " 4909 "%d for lun_disable on target %ju lun %jd\n", 4910 port->port_name, port->targ_port, retval, 4911 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4912 } 4913 } 4914 4915 mtx_unlock(&ctl_softc->ctl_lock); 4916 4917 return (0); 4918} 4919 4920int 4921ctl_start_lun(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_STOPPED; 4932 mtx_unlock(&lun->lun_lock); 4933 4934 return (0); 4935} 4936 4937int 4938ctl_stop_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 lun->flags |= CTL_LUN_STOPPED; 4949 mtx_unlock(&lun->lun_lock); 4950 4951 return (0); 4952} 4953 4954int 4955ctl_lun_offline(struct ctl_be_lun *be_lun) 4956{ 4957 struct ctl_softc *ctl_softc; 4958 struct ctl_lun *lun; 4959 4960 ctl_softc = control_softc; 4961 4962 lun = (struct ctl_lun *)be_lun->ctl_lun; 4963 4964 mtx_lock(&lun->lun_lock); 4965 lun->flags |= CTL_LUN_OFFLINE; 4966 mtx_unlock(&lun->lun_lock); 4967 4968 return (0); 4969} 4970 4971int 4972ctl_lun_online(struct ctl_be_lun *be_lun) 4973{ 4974 struct ctl_softc *ctl_softc; 4975 struct ctl_lun *lun; 4976 4977 ctl_softc = control_softc; 4978 4979 lun = (struct ctl_lun *)be_lun->ctl_lun; 4980 4981 mtx_lock(&lun->lun_lock); 4982 lun->flags &= ~CTL_LUN_OFFLINE; 4983 mtx_unlock(&lun->lun_lock); 4984 4985 return (0); 4986} 4987 4988int 4989ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4990{ 4991 struct ctl_softc *ctl_softc; 4992 struct ctl_lun *lun; 4993 4994 ctl_softc = control_softc; 4995 4996 lun = (struct ctl_lun *)be_lun->ctl_lun; 4997 4998 mtx_lock(&lun->lun_lock); 4999 5000 /* 5001 * The LUN needs to be disabled before it can be marked invalid. 5002 */ 5003 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5004 mtx_unlock(&lun->lun_lock); 5005 return (-1); 5006 } 5007 /* 5008 * Mark the LUN invalid. 5009 */ 5010 lun->flags |= CTL_LUN_INVALID; 5011 5012 /* 5013 * If there is nothing in the OOA queue, go ahead and free the LUN. 5014 * If we have something in the OOA queue, we'll free it when the 5015 * last I/O completes. 5016 */ 5017 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5018 mtx_unlock(&lun->lun_lock); 5019 mtx_lock(&ctl_softc->ctl_lock); 5020 ctl_free_lun(lun); 5021 mtx_unlock(&ctl_softc->ctl_lock); 5022 } else 5023 mtx_unlock(&lun->lun_lock); 5024 5025 return (0); 5026} 5027 5028int 5029ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5030{ 5031 struct ctl_softc *ctl_softc; 5032 struct ctl_lun *lun; 5033 5034 ctl_softc = control_softc; 5035 lun = (struct ctl_lun *)be_lun->ctl_lun; 5036 5037 mtx_lock(&lun->lun_lock); 5038 lun->flags |= CTL_LUN_INOPERABLE; 5039 mtx_unlock(&lun->lun_lock); 5040 5041 return (0); 5042} 5043 5044int 5045ctl_lun_operable(struct ctl_be_lun *be_lun) 5046{ 5047 struct ctl_softc *ctl_softc; 5048 struct ctl_lun *lun; 5049 5050 ctl_softc = control_softc; 5051 lun = (struct ctl_lun *)be_lun->ctl_lun; 5052 5053 mtx_lock(&lun->lun_lock); 5054 lun->flags &= ~CTL_LUN_INOPERABLE; 5055 mtx_unlock(&lun->lun_lock); 5056 5057 return (0); 5058} 5059 5060int 5061ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5062 int lock) 5063{ 5064 struct ctl_softc *softc; 5065 struct ctl_lun *lun; 5066 struct copan_aps_subpage *current_sp; 5067 struct ctl_page_index *page_index; 5068 int i; 5069 5070 softc = control_softc; 5071 5072 mtx_lock(&softc->ctl_lock); 5073 5074 lun = (struct ctl_lun *)be_lun->ctl_lun; 5075 mtx_lock(&lun->lun_lock); 5076 5077 page_index = NULL; 5078 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5079 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5080 APS_PAGE_CODE) 5081 continue; 5082 5083 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5084 continue; 5085 page_index = &lun->mode_pages.index[i]; 5086 } 5087 5088 if (page_index == NULL) { 5089 mtx_unlock(&lun->lun_lock); 5090 mtx_unlock(&softc->ctl_lock); 5091 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5092 (uintmax_t)lun->lun); 5093 return (1); 5094 } 5095#if 0 5096 if ((softc->aps_locked_lun != 0) 5097 && (softc->aps_locked_lun != lun->lun)) { 5098 printf("%s: attempt to lock LUN %llu when %llu is already " 5099 "locked\n"); 5100 mtx_unlock(&lun->lun_lock); 5101 mtx_unlock(&softc->ctl_lock); 5102 return (1); 5103 } 5104#endif 5105 5106 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5107 (page_index->page_len * CTL_PAGE_CURRENT)); 5108 5109 if (lock != 0) { 5110 current_sp->lock_active = APS_LOCK_ACTIVE; 5111 softc->aps_locked_lun = lun->lun; 5112 } else { 5113 current_sp->lock_active = 0; 5114 softc->aps_locked_lun = 0; 5115 } 5116 5117 5118 /* 5119 * If we're in HA mode, try to send the lock message to the other 5120 * side. 5121 */ 5122 if (ctl_is_single == 0) { 5123 int isc_retval; 5124 union ctl_ha_msg lock_msg; 5125 5126 lock_msg.hdr.nexus = *nexus; 5127 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5128 if (lock != 0) 5129 lock_msg.aps.lock_flag = 1; 5130 else 5131 lock_msg.aps.lock_flag = 0; 5132 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5133 sizeof(lock_msg), 0); 5134 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5135 printf("%s: APS (lock=%d) error returned from " 5136 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5137 mtx_unlock(&lun->lun_lock); 5138 mtx_unlock(&softc->ctl_lock); 5139 return (1); 5140 } 5141 } 5142 5143 mtx_unlock(&lun->lun_lock); 5144 mtx_unlock(&softc->ctl_lock); 5145 5146 return (0); 5147} 5148 5149void 5150ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5151{ 5152 struct ctl_lun *lun; 5153 struct ctl_softc *softc; 5154 int i; 5155 5156 softc = control_softc; 5157 5158 lun = (struct ctl_lun *)be_lun->ctl_lun; 5159 5160 mtx_lock(&lun->lun_lock); 5161 5162 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5163 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5164 5165 mtx_unlock(&lun->lun_lock); 5166} 5167 5168/* 5169 * Backend "memory move is complete" callback for requests that never 5170 * make it down to say RAIDCore's configuration code. 5171 */ 5172int 5173ctl_config_move_done(union ctl_io *io) 5174{ 5175 int retval; 5176 5177 retval = CTL_RETVAL_COMPLETE; 5178 5179 5180 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5181 /* 5182 * XXX KDM this shouldn't happen, but what if it does? 5183 */ 5184 if (io->io_hdr.io_type != CTL_IO_SCSI) 5185 panic("I/O type isn't CTL_IO_SCSI!"); 5186 5187 if ((io->io_hdr.port_status == 0) 5188 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5189 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5190 io->io_hdr.status = CTL_SUCCESS; 5191 else if ((io->io_hdr.port_status != 0) 5192 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5193 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5194 /* 5195 * For hardware error sense keys, the sense key 5196 * specific value is defined to be a retry count, 5197 * but we use it to pass back an internal FETD 5198 * error code. XXX KDM Hopefully the FETD is only 5199 * using 16 bits for an error code, since that's 5200 * all the space we have in the sks field. 5201 */ 5202 ctl_set_internal_failure(&io->scsiio, 5203 /*sks_valid*/ 1, 5204 /*retry_count*/ 5205 io->io_hdr.port_status); 5206 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5207 free(io->scsiio.kern_data_ptr, M_CTL); 5208 ctl_done(io); 5209 goto bailout; 5210 } 5211 5212 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5213 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5214 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5215 /* 5216 * XXX KDM just assuming a single pointer here, and not a 5217 * S/G list. If we start using S/G lists for config data, 5218 * we'll need to know how to clean them up here as well. 5219 */ 5220 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5221 free(io->scsiio.kern_data_ptr, M_CTL); 5222 /* Hopefully the user has already set the status... */ 5223 ctl_done(io); 5224 } else { 5225 /* 5226 * XXX KDM now we need to continue data movement. Some 5227 * options: 5228 * - call ctl_scsiio() again? We don't do this for data 5229 * writes, because for those at least we know ahead of 5230 * time where the write will go and how long it is. For 5231 * config writes, though, that information is largely 5232 * contained within the write itself, thus we need to 5233 * parse out the data again. 5234 * 5235 * - Call some other function once the data is in? 5236 */ 5237 5238 /* 5239 * XXX KDM call ctl_scsiio() again for now, and check flag 5240 * bits to see whether we're allocated or not. 5241 */ 5242 retval = ctl_scsiio(&io->scsiio); 5243 } 5244bailout: 5245 return (retval); 5246} 5247 5248/* 5249 * This gets called by a backend driver when it is done with a 5250 * data_submit method. 5251 */ 5252void 5253ctl_data_submit_done(union ctl_io *io) 5254{ 5255 /* 5256 * If the IO_CONT flag is set, we need to call the supplied 5257 * function to continue processing the I/O, instead of completing 5258 * the I/O just yet. 5259 * 5260 * If there is an error, though, we don't want to keep processing. 5261 * Instead, just send status back to the initiator. 5262 */ 5263 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5264 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5265 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5266 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5267 io->scsiio.io_cont(io); 5268 return; 5269 } 5270 ctl_done(io); 5271} 5272 5273/* 5274 * This gets called by a backend driver when it is done with a 5275 * configuration write. 5276 */ 5277void 5278ctl_config_write_done(union ctl_io *io) 5279{ 5280 uint8_t *buf; 5281 5282 /* 5283 * If the IO_CONT flag is set, we need to call the supplied 5284 * function to continue processing the I/O, instead of completing 5285 * the I/O just yet. 5286 * 5287 * If there is an error, though, we don't want to keep processing. 5288 * Instead, just send status back to the initiator. 5289 */ 5290 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5291 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5292 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5293 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5294 io->scsiio.io_cont(io); 5295 return; 5296 } 5297 /* 5298 * Since a configuration write can be done for commands that actually 5299 * have data allocated, like write buffer, and commands that have 5300 * no data, like start/stop unit, we need to check here. 5301 */ 5302 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5303 buf = io->scsiio.kern_data_ptr; 5304 else 5305 buf = NULL; 5306 ctl_done(io); 5307 if (buf) 5308 free(buf, M_CTL); 5309} 5310 5311/* 5312 * SCSI release command. 5313 */ 5314int 5315ctl_scsi_release(struct ctl_scsiio *ctsio) 5316{ 5317 int length, longid, thirdparty_id, resv_id; 5318 struct ctl_softc *ctl_softc; 5319 struct ctl_lun *lun; 5320 uint32_t residx; 5321 5322 length = 0; 5323 resv_id = 0; 5324 5325 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5326 5327 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5328 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5329 ctl_softc = control_softc; 5330 5331 switch (ctsio->cdb[0]) { 5332 case RELEASE_10: { 5333 struct scsi_release_10 *cdb; 5334 5335 cdb = (struct scsi_release_10 *)ctsio->cdb; 5336 5337 if (cdb->byte2 & SR10_LONGID) 5338 longid = 1; 5339 else 5340 thirdparty_id = cdb->thirdparty_id; 5341 5342 resv_id = cdb->resv_id; 5343 length = scsi_2btoul(cdb->length); 5344 break; 5345 } 5346 } 5347 5348 5349 /* 5350 * XXX KDM right now, we only support LUN reservation. We don't 5351 * support 3rd party reservations, or extent reservations, which 5352 * might actually need the parameter list. If we've gotten this 5353 * far, we've got a LUN reservation. Anything else got kicked out 5354 * above. So, according to SPC, ignore the length. 5355 */ 5356 length = 0; 5357 5358 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5359 && (length > 0)) { 5360 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5361 ctsio->kern_data_len = length; 5362 ctsio->kern_total_len = length; 5363 ctsio->kern_data_resid = 0; 5364 ctsio->kern_rel_offset = 0; 5365 ctsio->kern_sg_entries = 0; 5366 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5367 ctsio->be_move_done = ctl_config_move_done; 5368 ctl_datamove((union ctl_io *)ctsio); 5369 5370 return (CTL_RETVAL_COMPLETE); 5371 } 5372 5373 if (length > 0) 5374 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5375 5376 mtx_lock(&lun->lun_lock); 5377 5378 /* 5379 * According to SPC, it is not an error for an intiator to attempt 5380 * to release a reservation on a LUN that isn't reserved, or that 5381 * is reserved by another initiator. The reservation can only be 5382 * released, though, by the initiator who made it or by one of 5383 * several reset type events. 5384 */ 5385 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5386 lun->flags &= ~CTL_LUN_RESERVED; 5387 5388 mtx_unlock(&lun->lun_lock); 5389 5390 ctsio->scsi_status = SCSI_STATUS_OK; 5391 ctsio->io_hdr.status = CTL_SUCCESS; 5392 5393 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5394 free(ctsio->kern_data_ptr, M_CTL); 5395 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5396 } 5397 5398 ctl_done((union ctl_io *)ctsio); 5399 return (CTL_RETVAL_COMPLETE); 5400} 5401 5402int 5403ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5404{ 5405 int extent, thirdparty, longid; 5406 int resv_id, length; 5407 uint64_t thirdparty_id; 5408 struct ctl_softc *ctl_softc; 5409 struct ctl_lun *lun; 5410 uint32_t residx; 5411 5412 extent = 0; 5413 thirdparty = 0; 5414 longid = 0; 5415 resv_id = 0; 5416 length = 0; 5417 thirdparty_id = 0; 5418 5419 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5420 5421 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5422 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5423 ctl_softc = control_softc; 5424 5425 switch (ctsio->cdb[0]) { 5426 case RESERVE_10: { 5427 struct scsi_reserve_10 *cdb; 5428 5429 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5430 5431 if (cdb->byte2 & SR10_LONGID) 5432 longid = 1; 5433 else 5434 thirdparty_id = cdb->thirdparty_id; 5435 5436 resv_id = cdb->resv_id; 5437 length = scsi_2btoul(cdb->length); 5438 break; 5439 } 5440 } 5441 5442 /* 5443 * XXX KDM right now, we only support LUN reservation. We don't 5444 * support 3rd party reservations, or extent reservations, which 5445 * might actually need the parameter list. If we've gotten this 5446 * far, we've got a LUN reservation. Anything else got kicked out 5447 * above. So, according to SPC, ignore the length. 5448 */ 5449 length = 0; 5450 5451 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5452 && (length > 0)) { 5453 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5454 ctsio->kern_data_len = length; 5455 ctsio->kern_total_len = length; 5456 ctsio->kern_data_resid = 0; 5457 ctsio->kern_rel_offset = 0; 5458 ctsio->kern_sg_entries = 0; 5459 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5460 ctsio->be_move_done = ctl_config_move_done; 5461 ctl_datamove((union ctl_io *)ctsio); 5462 5463 return (CTL_RETVAL_COMPLETE); 5464 } 5465 5466 if (length > 0) 5467 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5468 5469 mtx_lock(&lun->lun_lock); 5470 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5471 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5472 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5473 goto bailout; 5474 } 5475 5476 lun->flags |= CTL_LUN_RESERVED; 5477 lun->res_idx = residx; 5478 5479 ctsio->scsi_status = SCSI_STATUS_OK; 5480 ctsio->io_hdr.status = CTL_SUCCESS; 5481 5482bailout: 5483 mtx_unlock(&lun->lun_lock); 5484 5485 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5486 free(ctsio->kern_data_ptr, M_CTL); 5487 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5488 } 5489 5490 ctl_done((union ctl_io *)ctsio); 5491 return (CTL_RETVAL_COMPLETE); 5492} 5493 5494int 5495ctl_start_stop(struct ctl_scsiio *ctsio) 5496{ 5497 struct scsi_start_stop_unit *cdb; 5498 struct ctl_lun *lun; 5499 struct ctl_softc *ctl_softc; 5500 int retval; 5501 5502 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5503 5504 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5505 ctl_softc = control_softc; 5506 retval = 0; 5507 5508 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5509 5510 /* 5511 * XXX KDM 5512 * We don't support the immediate bit on a stop unit. In order to 5513 * do that, we would need to code up a way to know that a stop is 5514 * pending, and hold off any new commands until it completes, one 5515 * way or another. Then we could accept or reject those commands 5516 * depending on its status. We would almost need to do the reverse 5517 * of what we do below for an immediate start -- return the copy of 5518 * the ctl_io to the FETD with status to send to the host (and to 5519 * free the copy!) and then free the original I/O once the stop 5520 * actually completes. That way, the OOA queue mechanism can work 5521 * to block commands that shouldn't proceed. Another alternative 5522 * would be to put the copy in the queue in place of the original, 5523 * and return the original back to the caller. That could be 5524 * slightly safer.. 5525 */ 5526 if ((cdb->byte2 & SSS_IMMED) 5527 && ((cdb->how & SSS_START) == 0)) { 5528 ctl_set_invalid_field(ctsio, 5529 /*sks_valid*/ 1, 5530 /*command*/ 1, 5531 /*field*/ 1, 5532 /*bit_valid*/ 1, 5533 /*bit*/ 0); 5534 ctl_done((union ctl_io *)ctsio); 5535 return (CTL_RETVAL_COMPLETE); 5536 } 5537 5538 if ((lun->flags & CTL_LUN_PR_RESERVED) 5539 && ((cdb->how & SSS_START)==0)) { 5540 uint32_t residx; 5541 5542 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5543 if (lun->pr_keys[residx] == 0 5544 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5545 5546 ctl_set_reservation_conflict(ctsio); 5547 ctl_done((union ctl_io *)ctsio); 5548 return (CTL_RETVAL_COMPLETE); 5549 } 5550 } 5551 5552 /* 5553 * If there is no backend on this device, we can't start or stop 5554 * it. In theory we shouldn't get any start/stop commands in the 5555 * first place at this level if the LUN doesn't have a backend. 5556 * That should get stopped by the command decode code. 5557 */ 5558 if (lun->backend == NULL) { 5559 ctl_set_invalid_opcode(ctsio); 5560 ctl_done((union ctl_io *)ctsio); 5561 return (CTL_RETVAL_COMPLETE); 5562 } 5563 5564 /* 5565 * XXX KDM Copan-specific offline behavior. 5566 * Figure out a reasonable way to port this? 5567 */ 5568#ifdef NEEDTOPORT 5569 mtx_lock(&lun->lun_lock); 5570 5571 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5572 && (lun->flags & CTL_LUN_OFFLINE)) { 5573 /* 5574 * If the LUN is offline, and the on/offline bit isn't set, 5575 * reject the start or stop. Otherwise, let it through. 5576 */ 5577 mtx_unlock(&lun->lun_lock); 5578 ctl_set_lun_not_ready(ctsio); 5579 ctl_done((union ctl_io *)ctsio); 5580 } else { 5581 mtx_unlock(&lun->lun_lock); 5582#endif /* NEEDTOPORT */ 5583 /* 5584 * This could be a start or a stop when we're online, 5585 * or a stop/offline or start/online. A start or stop when 5586 * we're offline is covered in the case above. 5587 */ 5588 /* 5589 * In the non-immediate case, we send the request to 5590 * the backend and return status to the user when 5591 * it is done. 5592 * 5593 * In the immediate case, we allocate a new ctl_io 5594 * to hold a copy of the request, and send that to 5595 * the backend. We then set good status on the 5596 * user's request and return it immediately. 5597 */ 5598 if (cdb->byte2 & SSS_IMMED) { 5599 union ctl_io *new_io; 5600 5601 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5602 if (new_io == NULL) { 5603 ctl_set_busy(ctsio); 5604 ctl_done((union ctl_io *)ctsio); 5605 } else { 5606 ctl_copy_io((union ctl_io *)ctsio, 5607 new_io); 5608 retval = lun->backend->config_write(new_io); 5609 ctl_set_success(ctsio); 5610 ctl_done((union ctl_io *)ctsio); 5611 } 5612 } else { 5613 retval = lun->backend->config_write( 5614 (union ctl_io *)ctsio); 5615 } 5616#ifdef NEEDTOPORT 5617 } 5618#endif 5619 return (retval); 5620} 5621 5622/* 5623 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5624 * we don't really do anything with the LBA and length fields if the user 5625 * passes them in. Instead we'll just flush out the cache for the entire 5626 * LUN. 5627 */ 5628int 5629ctl_sync_cache(struct ctl_scsiio *ctsio) 5630{ 5631 struct ctl_lun *lun; 5632 struct ctl_softc *ctl_softc; 5633 uint64_t starting_lba; 5634 uint32_t block_count; 5635 int retval; 5636 5637 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5638 5639 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5640 ctl_softc = control_softc; 5641 retval = 0; 5642 5643 switch (ctsio->cdb[0]) { 5644 case SYNCHRONIZE_CACHE: { 5645 struct scsi_sync_cache *cdb; 5646 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5647 5648 starting_lba = scsi_4btoul(cdb->begin_lba); 5649 block_count = scsi_2btoul(cdb->lb_count); 5650 break; 5651 } 5652 case SYNCHRONIZE_CACHE_16: { 5653 struct scsi_sync_cache_16 *cdb; 5654 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5655 5656 starting_lba = scsi_8btou64(cdb->begin_lba); 5657 block_count = scsi_4btoul(cdb->lb_count); 5658 break; 5659 } 5660 default: 5661 ctl_set_invalid_opcode(ctsio); 5662 ctl_done((union ctl_io *)ctsio); 5663 goto bailout; 5664 break; /* NOTREACHED */ 5665 } 5666 5667 /* 5668 * We check the LBA and length, but don't do anything with them. 5669 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5670 * get flushed. This check will just help satisfy anyone who wants 5671 * to see an error for an out of range LBA. 5672 */ 5673 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5674 ctl_set_lba_out_of_range(ctsio); 5675 ctl_done((union ctl_io *)ctsio); 5676 goto bailout; 5677 } 5678 5679 /* 5680 * If this LUN has no backend, we can't flush the cache anyway. 5681 */ 5682 if (lun->backend == NULL) { 5683 ctl_set_invalid_opcode(ctsio); 5684 ctl_done((union ctl_io *)ctsio); 5685 goto bailout; 5686 } 5687 5688 /* 5689 * Check to see whether we're configured to send the SYNCHRONIZE 5690 * CACHE command directly to the back end. 5691 */ 5692 mtx_lock(&lun->lun_lock); 5693 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5694 && (++(lun->sync_count) >= lun->sync_interval)) { 5695 lun->sync_count = 0; 5696 mtx_unlock(&lun->lun_lock); 5697 retval = lun->backend->config_write((union ctl_io *)ctsio); 5698 } else { 5699 mtx_unlock(&lun->lun_lock); 5700 ctl_set_success(ctsio); 5701 ctl_done((union ctl_io *)ctsio); 5702 } 5703 5704bailout: 5705 5706 return (retval); 5707} 5708 5709int 5710ctl_format(struct ctl_scsiio *ctsio) 5711{ 5712 struct scsi_format *cdb; 5713 struct ctl_lun *lun; 5714 struct ctl_softc *ctl_softc; 5715 int length, defect_list_len; 5716 5717 CTL_DEBUG_PRINT(("ctl_format\n")); 5718 5719 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5720 ctl_softc = control_softc; 5721 5722 cdb = (struct scsi_format *)ctsio->cdb; 5723 5724 length = 0; 5725 if (cdb->byte2 & SF_FMTDATA) { 5726 if (cdb->byte2 & SF_LONGLIST) 5727 length = sizeof(struct scsi_format_header_long); 5728 else 5729 length = sizeof(struct scsi_format_header_short); 5730 } 5731 5732 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5733 && (length > 0)) { 5734 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5735 ctsio->kern_data_len = length; 5736 ctsio->kern_total_len = length; 5737 ctsio->kern_data_resid = 0; 5738 ctsio->kern_rel_offset = 0; 5739 ctsio->kern_sg_entries = 0; 5740 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5741 ctsio->be_move_done = ctl_config_move_done; 5742 ctl_datamove((union ctl_io *)ctsio); 5743 5744 return (CTL_RETVAL_COMPLETE); 5745 } 5746 5747 defect_list_len = 0; 5748 5749 if (cdb->byte2 & SF_FMTDATA) { 5750 if (cdb->byte2 & SF_LONGLIST) { 5751 struct scsi_format_header_long *header; 5752 5753 header = (struct scsi_format_header_long *) 5754 ctsio->kern_data_ptr; 5755 5756 defect_list_len = scsi_4btoul(header->defect_list_len); 5757 if (defect_list_len != 0) { 5758 ctl_set_invalid_field(ctsio, 5759 /*sks_valid*/ 1, 5760 /*command*/ 0, 5761 /*field*/ 2, 5762 /*bit_valid*/ 0, 5763 /*bit*/ 0); 5764 goto bailout; 5765 } 5766 } else { 5767 struct scsi_format_header_short *header; 5768 5769 header = (struct scsi_format_header_short *) 5770 ctsio->kern_data_ptr; 5771 5772 defect_list_len = scsi_2btoul(header->defect_list_len); 5773 if (defect_list_len != 0) { 5774 ctl_set_invalid_field(ctsio, 5775 /*sks_valid*/ 1, 5776 /*command*/ 0, 5777 /*field*/ 2, 5778 /*bit_valid*/ 0, 5779 /*bit*/ 0); 5780 goto bailout; 5781 } 5782 } 5783 } 5784 5785 /* 5786 * The format command will clear out the "Medium format corrupted" 5787 * status if set by the configuration code. That status is really 5788 * just a way to notify the host that we have lost the media, and 5789 * get them to issue a command that will basically make them think 5790 * they're blowing away the media. 5791 */ 5792 mtx_lock(&lun->lun_lock); 5793 lun->flags &= ~CTL_LUN_INOPERABLE; 5794 mtx_unlock(&lun->lun_lock); 5795 5796 ctsio->scsi_status = SCSI_STATUS_OK; 5797 ctsio->io_hdr.status = CTL_SUCCESS; 5798bailout: 5799 5800 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5801 free(ctsio->kern_data_ptr, M_CTL); 5802 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5803 } 5804 5805 ctl_done((union ctl_io *)ctsio); 5806 return (CTL_RETVAL_COMPLETE); 5807} 5808 5809int 5810ctl_read_buffer(struct ctl_scsiio *ctsio) 5811{ 5812 struct scsi_read_buffer *cdb; 5813 struct ctl_lun *lun; 5814 int buffer_offset, len; 5815 static uint8_t descr[4]; 5816 static uint8_t echo_descr[4] = { 0 }; 5817 5818 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5819 5820 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5821 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5822 5823 if (lun->flags & CTL_LUN_PR_RESERVED) { 5824 uint32_t residx; 5825 5826 /* 5827 * XXX KDM need a lock here. 5828 */ 5829 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5830 if ((lun->res_type == SPR_TYPE_EX_AC 5831 && residx != lun->pr_res_idx) 5832 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5833 || lun->res_type == SPR_TYPE_EX_AC_AR) 5834 && lun->pr_keys[residx] == 0)) { 5835 ctl_set_reservation_conflict(ctsio); 5836 ctl_done((union ctl_io *)ctsio); 5837 return (CTL_RETVAL_COMPLETE); 5838 } 5839 } 5840 5841 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5842 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5843 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5844 ctl_set_invalid_field(ctsio, 5845 /*sks_valid*/ 1, 5846 /*command*/ 1, 5847 /*field*/ 1, 5848 /*bit_valid*/ 1, 5849 /*bit*/ 4); 5850 ctl_done((union ctl_io *)ctsio); 5851 return (CTL_RETVAL_COMPLETE); 5852 } 5853 5854 len = scsi_3btoul(cdb->length); 5855 buffer_offset = scsi_3btoul(cdb->offset); 5856 5857 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5858 ctl_set_invalid_field(ctsio, 5859 /*sks_valid*/ 1, 5860 /*command*/ 1, 5861 /*field*/ 6, 5862 /*bit_valid*/ 0, 5863 /*bit*/ 0); 5864 ctl_done((union ctl_io *)ctsio); 5865 return (CTL_RETVAL_COMPLETE); 5866 } 5867 5868 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5869 descr[0] = 0; 5870 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5871 ctsio->kern_data_ptr = descr; 5872 len = min(len, sizeof(descr)); 5873 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5874 ctsio->kern_data_ptr = echo_descr; 5875 len = min(len, sizeof(echo_descr)); 5876 } else 5877 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5878 ctsio->kern_data_len = len; 5879 ctsio->kern_total_len = len; 5880 ctsio->kern_data_resid = 0; 5881 ctsio->kern_rel_offset = 0; 5882 ctsio->kern_sg_entries = 0; 5883 ctsio->be_move_done = ctl_config_move_done; 5884 ctl_datamove((union ctl_io *)ctsio); 5885 5886 return (CTL_RETVAL_COMPLETE); 5887} 5888 5889int 5890ctl_write_buffer(struct ctl_scsiio *ctsio) 5891{ 5892 struct scsi_write_buffer *cdb; 5893 struct ctl_lun *lun; 5894 int buffer_offset, len; 5895 5896 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5897 5898 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5899 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5900 5901 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5902 ctl_set_invalid_field(ctsio, 5903 /*sks_valid*/ 1, 5904 /*command*/ 1, 5905 /*field*/ 1, 5906 /*bit_valid*/ 1, 5907 /*bit*/ 4); 5908 ctl_done((union ctl_io *)ctsio); 5909 return (CTL_RETVAL_COMPLETE); 5910 } 5911 5912 len = scsi_3btoul(cdb->length); 5913 buffer_offset = scsi_3btoul(cdb->offset); 5914 5915 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5916 ctl_set_invalid_field(ctsio, 5917 /*sks_valid*/ 1, 5918 /*command*/ 1, 5919 /*field*/ 6, 5920 /*bit_valid*/ 0, 5921 /*bit*/ 0); 5922 ctl_done((union ctl_io *)ctsio); 5923 return (CTL_RETVAL_COMPLETE); 5924 } 5925 5926 /* 5927 * If we've got a kernel request that hasn't been malloced yet, 5928 * malloc it and tell the caller the data buffer is here. 5929 */ 5930 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5931 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5932 ctsio->kern_data_len = len; 5933 ctsio->kern_total_len = len; 5934 ctsio->kern_data_resid = 0; 5935 ctsio->kern_rel_offset = 0; 5936 ctsio->kern_sg_entries = 0; 5937 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5938 ctsio->be_move_done = ctl_config_move_done; 5939 ctl_datamove((union ctl_io *)ctsio); 5940 5941 return (CTL_RETVAL_COMPLETE); 5942 } 5943 5944 ctl_done((union ctl_io *)ctsio); 5945 5946 return (CTL_RETVAL_COMPLETE); 5947} 5948 5949int 5950ctl_write_same(struct ctl_scsiio *ctsio) 5951{ 5952 struct ctl_lun *lun; 5953 struct ctl_lba_len_flags *lbalen; 5954 uint64_t lba; 5955 uint32_t num_blocks; 5956 int len, retval; 5957 uint8_t byte2; 5958 5959 retval = CTL_RETVAL_COMPLETE; 5960 5961 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5962 5963 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5964 5965 switch (ctsio->cdb[0]) { 5966 case WRITE_SAME_10: { 5967 struct scsi_write_same_10 *cdb; 5968 5969 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5970 5971 lba = scsi_4btoul(cdb->addr); 5972 num_blocks = scsi_2btoul(cdb->length); 5973 byte2 = cdb->byte2; 5974 break; 5975 } 5976 case WRITE_SAME_16: { 5977 struct scsi_write_same_16 *cdb; 5978 5979 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5980 5981 lba = scsi_8btou64(cdb->addr); 5982 num_blocks = scsi_4btoul(cdb->length); 5983 byte2 = cdb->byte2; 5984 break; 5985 } 5986 default: 5987 /* 5988 * We got a command we don't support. This shouldn't 5989 * happen, commands should be filtered out above us. 5990 */ 5991 ctl_set_invalid_opcode(ctsio); 5992 ctl_done((union ctl_io *)ctsio); 5993 5994 return (CTL_RETVAL_COMPLETE); 5995 break; /* NOTREACHED */ 5996 } 5997 5998 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5999 if ((byte2 & SWS_UNMAP) == 0 && 6000 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 6001 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 6002 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 6003 ctl_done((union ctl_io *)ctsio); 6004 return (CTL_RETVAL_COMPLETE); 6005 } 6006 6007 /* 6008 * The first check is to make sure we're in bounds, the second 6009 * check is to catch wrap-around problems. If the lba + num blocks 6010 * is less than the lba, then we've wrapped around and the block 6011 * range is invalid anyway. 6012 */ 6013 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6014 || ((lba + num_blocks) < lba)) { 6015 ctl_set_lba_out_of_range(ctsio); 6016 ctl_done((union ctl_io *)ctsio); 6017 return (CTL_RETVAL_COMPLETE); 6018 } 6019 6020 /* Zero number of blocks means "to the last logical block" */ 6021 if (num_blocks == 0) { 6022 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6023 ctl_set_invalid_field(ctsio, 6024 /*sks_valid*/ 0, 6025 /*command*/ 1, 6026 /*field*/ 0, 6027 /*bit_valid*/ 0, 6028 /*bit*/ 0); 6029 ctl_done((union ctl_io *)ctsio); 6030 return (CTL_RETVAL_COMPLETE); 6031 } 6032 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6033 } 6034 6035 len = lun->be_lun->blocksize; 6036 6037 /* 6038 * If we've got a kernel request that hasn't been malloced yet, 6039 * malloc it and tell the caller the data buffer is here. 6040 */ 6041 if ((byte2 & SWS_NDOB) == 0 && 6042 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6043 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6044 ctsio->kern_data_len = len; 6045 ctsio->kern_total_len = len; 6046 ctsio->kern_data_resid = 0; 6047 ctsio->kern_rel_offset = 0; 6048 ctsio->kern_sg_entries = 0; 6049 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6050 ctsio->be_move_done = ctl_config_move_done; 6051 ctl_datamove((union ctl_io *)ctsio); 6052 6053 return (CTL_RETVAL_COMPLETE); 6054 } 6055 6056 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6057 lbalen->lba = lba; 6058 lbalen->len = num_blocks; 6059 lbalen->flags = byte2; 6060 retval = lun->backend->config_write((union ctl_io *)ctsio); 6061 6062 return (retval); 6063} 6064 6065int 6066ctl_unmap(struct ctl_scsiio *ctsio) 6067{ 6068 struct ctl_lun *lun; 6069 struct scsi_unmap *cdb; 6070 struct ctl_ptr_len_flags *ptrlen; 6071 struct scsi_unmap_header *hdr; 6072 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6073 uint64_t lba; 6074 uint32_t num_blocks; 6075 int len, retval; 6076 uint8_t byte2; 6077 6078 retval = CTL_RETVAL_COMPLETE; 6079 6080 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6081 6082 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6083 cdb = (struct scsi_unmap *)ctsio->cdb; 6084 6085 len = scsi_2btoul(cdb->length); 6086 byte2 = cdb->byte2; 6087 6088 /* 6089 * If we've got a kernel request that hasn't been malloced yet, 6090 * malloc it and tell the caller the data buffer is here. 6091 */ 6092 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6093 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6094 ctsio->kern_data_len = len; 6095 ctsio->kern_total_len = len; 6096 ctsio->kern_data_resid = 0; 6097 ctsio->kern_rel_offset = 0; 6098 ctsio->kern_sg_entries = 0; 6099 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6100 ctsio->be_move_done = ctl_config_move_done; 6101 ctl_datamove((union ctl_io *)ctsio); 6102 6103 return (CTL_RETVAL_COMPLETE); 6104 } 6105 6106 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6107 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6108 if (len < sizeof (*hdr) || 6109 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6110 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6111 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6112 ctl_set_invalid_field(ctsio, 6113 /*sks_valid*/ 0, 6114 /*command*/ 0, 6115 /*field*/ 0, 6116 /*bit_valid*/ 0, 6117 /*bit*/ 0); 6118 ctl_done((union ctl_io *)ctsio); 6119 return (CTL_RETVAL_COMPLETE); 6120 } 6121 len = scsi_2btoul(hdr->desc_length); 6122 buf = (struct scsi_unmap_desc *)(hdr + 1); 6123 end = buf + len / sizeof(*buf); 6124 6125 endnz = buf; 6126 for (range = buf; range < end; range++) { 6127 lba = scsi_8btou64(range->lba); 6128 num_blocks = scsi_4btoul(range->length); 6129 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6130 || ((lba + num_blocks) < lba)) { 6131 ctl_set_lba_out_of_range(ctsio); 6132 ctl_done((union ctl_io *)ctsio); 6133 return (CTL_RETVAL_COMPLETE); 6134 } 6135 if (num_blocks != 0) 6136 endnz = range + 1; 6137 } 6138 6139 /* 6140 * Block backend can not handle zero last range. 6141 * Filter it out and return if there is nothing left. 6142 */ 6143 len = (uint8_t *)endnz - (uint8_t *)buf; 6144 if (len == 0) { 6145 ctl_set_success(ctsio); 6146 ctl_done((union ctl_io *)ctsio); 6147 return (CTL_RETVAL_COMPLETE); 6148 } 6149 6150 mtx_lock(&lun->lun_lock); 6151 ptrlen = (struct ctl_ptr_len_flags *) 6152 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6153 ptrlen->ptr = (void *)buf; 6154 ptrlen->len = len; 6155 ptrlen->flags = byte2; 6156 ctl_check_blocked(lun); 6157 mtx_unlock(&lun->lun_lock); 6158 6159 retval = lun->backend->config_write((union ctl_io *)ctsio); 6160 return (retval); 6161} 6162 6163/* 6164 * Note that this function currently doesn't actually do anything inside 6165 * CTL to enforce things if the DQue bit is turned on. 6166 * 6167 * Also note that this function can't be used in the default case, because 6168 * the DQue bit isn't set in the changeable mask for the control mode page 6169 * anyway. This is just here as an example for how to implement a page 6170 * handler, and a placeholder in case we want to allow the user to turn 6171 * tagged queueing on and off. 6172 * 6173 * The D_SENSE bit handling is functional, however, and will turn 6174 * descriptor sense on and off for a given LUN. 6175 */ 6176int 6177ctl_control_page_handler(struct ctl_scsiio *ctsio, 6178 struct ctl_page_index *page_index, uint8_t *page_ptr) 6179{ 6180 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6181 struct ctl_lun *lun; 6182 struct ctl_softc *softc; 6183 int set_ua; 6184 uint32_t initidx; 6185 6186 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6187 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6188 set_ua = 0; 6189 6190 user_cp = (struct scsi_control_page *)page_ptr; 6191 current_cp = (struct scsi_control_page *) 6192 (page_index->page_data + (page_index->page_len * 6193 CTL_PAGE_CURRENT)); 6194 saved_cp = (struct scsi_control_page *) 6195 (page_index->page_data + (page_index->page_len * 6196 CTL_PAGE_SAVED)); 6197 6198 softc = control_softc; 6199 6200 mtx_lock(&lun->lun_lock); 6201 if (((current_cp->rlec & SCP_DSENSE) == 0) 6202 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6203 /* 6204 * Descriptor sense is currently turned off and the user 6205 * wants to turn it on. 6206 */ 6207 current_cp->rlec |= SCP_DSENSE; 6208 saved_cp->rlec |= SCP_DSENSE; 6209 lun->flags |= CTL_LUN_SENSE_DESC; 6210 set_ua = 1; 6211 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6212 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6213 /* 6214 * Descriptor sense is currently turned on, and the user 6215 * wants to turn it off. 6216 */ 6217 current_cp->rlec &= ~SCP_DSENSE; 6218 saved_cp->rlec &= ~SCP_DSENSE; 6219 lun->flags &= ~CTL_LUN_SENSE_DESC; 6220 set_ua = 1; 6221 } 6222 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6223 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6224 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6225 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6226 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6227 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6228 set_ua = 1; 6229 } 6230 if ((current_cp->eca_and_aen & SCP_SWP) != 6231 (user_cp->eca_and_aen & SCP_SWP)) { 6232 current_cp->eca_and_aen &= ~SCP_SWP; 6233 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6234 saved_cp->eca_and_aen &= ~SCP_SWP; 6235 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6236 set_ua = 1; 6237 } 6238 if (set_ua != 0) { 6239 int i; 6240 /* 6241 * Let other initiators know that the mode 6242 * parameters for this LUN have changed. 6243 */ 6244 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6245 if (i == initidx) 6246 continue; 6247 6248 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6249 } 6250 } 6251 mtx_unlock(&lun->lun_lock); 6252 6253 return (0); 6254} 6255 6256int 6257ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6258 struct ctl_page_index *page_index, uint8_t *page_ptr) 6259{ 6260 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6261 struct ctl_lun *lun; 6262 int set_ua; 6263 uint32_t initidx; 6264 6265 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6266 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6267 set_ua = 0; 6268 6269 user_cp = (struct scsi_caching_page *)page_ptr; 6270 current_cp = (struct scsi_caching_page *) 6271 (page_index->page_data + (page_index->page_len * 6272 CTL_PAGE_CURRENT)); 6273 saved_cp = (struct scsi_caching_page *) 6274 (page_index->page_data + (page_index->page_len * 6275 CTL_PAGE_SAVED)); 6276 6277 mtx_lock(&lun->lun_lock); 6278 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6279 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6280 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6281 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6282 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6283 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6284 set_ua = 1; 6285 } 6286 if (set_ua != 0) { 6287 int i; 6288 /* 6289 * Let other initiators know that the mode 6290 * parameters for this LUN have changed. 6291 */ 6292 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6293 if (i == initidx) 6294 continue; 6295 6296 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6297 } 6298 } 6299 mtx_unlock(&lun->lun_lock); 6300 6301 return (0); 6302} 6303 6304int 6305ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6306 struct ctl_page_index *page_index, uint8_t *page_ptr) 6307{ 6308 return (0); 6309} 6310 6311int 6312ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6313 struct ctl_page_index *page_index, int pc) 6314{ 6315 struct copan_power_subpage *page; 6316 6317 page = (struct copan_power_subpage *)page_index->page_data + 6318 (page_index->page_len * pc); 6319 6320 switch (pc) { 6321 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6322 /* 6323 * We don't update the changable bits for this page. 6324 */ 6325 break; 6326 case SMS_PAGE_CTRL_CURRENT >> 6: 6327 case SMS_PAGE_CTRL_DEFAULT >> 6: 6328 case SMS_PAGE_CTRL_SAVED >> 6: 6329#ifdef NEEDTOPORT 6330 ctl_update_power_subpage(page); 6331#endif 6332 break; 6333 default: 6334#ifdef NEEDTOPORT 6335 EPRINT(0, "Invalid PC %d!!", pc); 6336#endif 6337 break; 6338 } 6339 return (0); 6340} 6341 6342 6343int 6344ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6345 struct ctl_page_index *page_index, uint8_t *page_ptr) 6346{ 6347 struct copan_aps_subpage *user_sp; 6348 struct copan_aps_subpage *current_sp; 6349 union ctl_modepage_info *modepage_info; 6350 struct ctl_softc *softc; 6351 struct ctl_lun *lun; 6352 int retval; 6353 6354 retval = CTL_RETVAL_COMPLETE; 6355 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6356 (page_index->page_len * CTL_PAGE_CURRENT)); 6357 softc = control_softc; 6358 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6359 6360 user_sp = (struct copan_aps_subpage *)page_ptr; 6361 6362 modepage_info = (union ctl_modepage_info *) 6363 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6364 6365 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6366 modepage_info->header.subpage = page_index->subpage; 6367 modepage_info->aps.lock_active = user_sp->lock_active; 6368 6369 mtx_lock(&softc->ctl_lock); 6370 6371 /* 6372 * If there is a request to lock the LUN and another LUN is locked 6373 * this is an error. If the requested LUN is already locked ignore 6374 * the request. If no LUN is locked attempt to lock it. 6375 * if there is a request to unlock the LUN and the LUN is currently 6376 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6377 * if another LUN is locked or no LUN is locked. 6378 */ 6379 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6380 if (softc->aps_locked_lun == lun->lun) { 6381 /* 6382 * This LUN is already locked, so we're done. 6383 */ 6384 retval = CTL_RETVAL_COMPLETE; 6385 } else if (softc->aps_locked_lun == 0) { 6386 /* 6387 * No one has the lock, pass the request to the 6388 * backend. 6389 */ 6390 retval = lun->backend->config_write( 6391 (union ctl_io *)ctsio); 6392 } else { 6393 /* 6394 * Someone else has the lock, throw out the request. 6395 */ 6396 ctl_set_already_locked(ctsio); 6397 free(ctsio->kern_data_ptr, M_CTL); 6398 ctl_done((union ctl_io *)ctsio); 6399 6400 /* 6401 * Set the return value so that ctl_do_mode_select() 6402 * won't try to complete the command. We already 6403 * completed it here. 6404 */ 6405 retval = CTL_RETVAL_ERROR; 6406 } 6407 } else if (softc->aps_locked_lun == lun->lun) { 6408 /* 6409 * This LUN is locked, so pass the unlock request to the 6410 * backend. 6411 */ 6412 retval = lun->backend->config_write((union ctl_io *)ctsio); 6413 } 6414 mtx_unlock(&softc->ctl_lock); 6415 6416 return (retval); 6417} 6418 6419int 6420ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6421 struct ctl_page_index *page_index, 6422 uint8_t *page_ptr) 6423{ 6424 uint8_t *c; 6425 int i; 6426 6427 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6428 ctl_time_io_secs = 6429 (c[0] << 8) | 6430 (c[1] << 0) | 6431 0; 6432 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6433 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6434 printf("page data:"); 6435 for (i=0; i<8; i++) 6436 printf(" %.2x",page_ptr[i]); 6437 printf("\n"); 6438 return (0); 6439} 6440 6441int 6442ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6443 struct ctl_page_index *page_index, 6444 int pc) 6445{ 6446 struct copan_debugconf_subpage *page; 6447 6448 page = (struct copan_debugconf_subpage *)page_index->page_data + 6449 (page_index->page_len * pc); 6450 6451 switch (pc) { 6452 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6453 case SMS_PAGE_CTRL_DEFAULT >> 6: 6454 case SMS_PAGE_CTRL_SAVED >> 6: 6455 /* 6456 * We don't update the changable or default bits for this page. 6457 */ 6458 break; 6459 case SMS_PAGE_CTRL_CURRENT >> 6: 6460 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6461 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6462 break; 6463 default: 6464#ifdef NEEDTOPORT 6465 EPRINT(0, "Invalid PC %d!!", pc); 6466#endif /* NEEDTOPORT */ 6467 break; 6468 } 6469 return (0); 6470} 6471 6472 6473static int 6474ctl_do_mode_select(union ctl_io *io) 6475{ 6476 struct scsi_mode_page_header *page_header; 6477 struct ctl_page_index *page_index; 6478 struct ctl_scsiio *ctsio; 6479 int control_dev, page_len; 6480 int page_len_offset, page_len_size; 6481 union ctl_modepage_info *modepage_info; 6482 struct ctl_lun *lun; 6483 int *len_left, *len_used; 6484 int retval, i; 6485 6486 ctsio = &io->scsiio; 6487 page_index = NULL; 6488 page_len = 0; 6489 retval = CTL_RETVAL_COMPLETE; 6490 6491 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6492 6493 if (lun->be_lun->lun_type != T_DIRECT) 6494 control_dev = 1; 6495 else 6496 control_dev = 0; 6497 6498 modepage_info = (union ctl_modepage_info *) 6499 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6500 len_left = &modepage_info->header.len_left; 6501 len_used = &modepage_info->header.len_used; 6502 6503do_next_page: 6504 6505 page_header = (struct scsi_mode_page_header *) 6506 (ctsio->kern_data_ptr + *len_used); 6507 6508 if (*len_left == 0) { 6509 free(ctsio->kern_data_ptr, M_CTL); 6510 ctl_set_success(ctsio); 6511 ctl_done((union ctl_io *)ctsio); 6512 return (CTL_RETVAL_COMPLETE); 6513 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6514 6515 free(ctsio->kern_data_ptr, M_CTL); 6516 ctl_set_param_len_error(ctsio); 6517 ctl_done((union ctl_io *)ctsio); 6518 return (CTL_RETVAL_COMPLETE); 6519 6520 } else if ((page_header->page_code & SMPH_SPF) 6521 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6522 6523 free(ctsio->kern_data_ptr, M_CTL); 6524 ctl_set_param_len_error(ctsio); 6525 ctl_done((union ctl_io *)ctsio); 6526 return (CTL_RETVAL_COMPLETE); 6527 } 6528 6529 6530 /* 6531 * XXX KDM should we do something with the block descriptor? 6532 */ 6533 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6534 6535 if ((control_dev != 0) 6536 && (lun->mode_pages.index[i].page_flags & 6537 CTL_PAGE_FLAG_DISK_ONLY)) 6538 continue; 6539 6540 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6541 (page_header->page_code & SMPH_PC_MASK)) 6542 continue; 6543 6544 /* 6545 * If neither page has a subpage code, then we've got a 6546 * match. 6547 */ 6548 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6549 && ((page_header->page_code & SMPH_SPF) == 0)) { 6550 page_index = &lun->mode_pages.index[i]; 6551 page_len = page_header->page_length; 6552 break; 6553 } 6554 6555 /* 6556 * If both pages have subpages, then the subpage numbers 6557 * have to match. 6558 */ 6559 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6560 && (page_header->page_code & SMPH_SPF)) { 6561 struct scsi_mode_page_header_sp *sph; 6562 6563 sph = (struct scsi_mode_page_header_sp *)page_header; 6564 6565 if (lun->mode_pages.index[i].subpage == 6566 sph->subpage) { 6567 page_index = &lun->mode_pages.index[i]; 6568 page_len = scsi_2btoul(sph->page_length); 6569 break; 6570 } 6571 } 6572 } 6573 6574 /* 6575 * If we couldn't find the page, or if we don't have a mode select 6576 * handler for it, send back an error to the user. 6577 */ 6578 if ((page_index == NULL) 6579 || (page_index->select_handler == NULL)) { 6580 ctl_set_invalid_field(ctsio, 6581 /*sks_valid*/ 1, 6582 /*command*/ 0, 6583 /*field*/ *len_used, 6584 /*bit_valid*/ 0, 6585 /*bit*/ 0); 6586 free(ctsio->kern_data_ptr, M_CTL); 6587 ctl_done((union ctl_io *)ctsio); 6588 return (CTL_RETVAL_COMPLETE); 6589 } 6590 6591 if (page_index->page_code & SMPH_SPF) { 6592 page_len_offset = 2; 6593 page_len_size = 2; 6594 } else { 6595 page_len_size = 1; 6596 page_len_offset = 1; 6597 } 6598 6599 /* 6600 * If the length the initiator gives us isn't the one we specify in 6601 * the mode page header, or if they didn't specify enough data in 6602 * the CDB to avoid truncating this page, kick out the request. 6603 */ 6604 if ((page_len != (page_index->page_len - page_len_offset - 6605 page_len_size)) 6606 || (*len_left < page_index->page_len)) { 6607 6608 6609 ctl_set_invalid_field(ctsio, 6610 /*sks_valid*/ 1, 6611 /*command*/ 0, 6612 /*field*/ *len_used + page_len_offset, 6613 /*bit_valid*/ 0, 6614 /*bit*/ 0); 6615 free(ctsio->kern_data_ptr, M_CTL); 6616 ctl_done((union ctl_io *)ctsio); 6617 return (CTL_RETVAL_COMPLETE); 6618 } 6619 6620 /* 6621 * Run through the mode page, checking to make sure that the bits 6622 * the user changed are actually legal for him to change. 6623 */ 6624 for (i = 0; i < page_index->page_len; i++) { 6625 uint8_t *user_byte, *change_mask, *current_byte; 6626 int bad_bit; 6627 int j; 6628 6629 user_byte = (uint8_t *)page_header + i; 6630 change_mask = page_index->page_data + 6631 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6632 current_byte = page_index->page_data + 6633 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6634 6635 /* 6636 * Check to see whether the user set any bits in this byte 6637 * that he is not allowed to set. 6638 */ 6639 if ((*user_byte & ~(*change_mask)) == 6640 (*current_byte & ~(*change_mask))) 6641 continue; 6642 6643 /* 6644 * Go through bit by bit to determine which one is illegal. 6645 */ 6646 bad_bit = 0; 6647 for (j = 7; j >= 0; j--) { 6648 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6649 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6650 bad_bit = i; 6651 break; 6652 } 6653 } 6654 ctl_set_invalid_field(ctsio, 6655 /*sks_valid*/ 1, 6656 /*command*/ 0, 6657 /*field*/ *len_used + i, 6658 /*bit_valid*/ 1, 6659 /*bit*/ bad_bit); 6660 free(ctsio->kern_data_ptr, M_CTL); 6661 ctl_done((union ctl_io *)ctsio); 6662 return (CTL_RETVAL_COMPLETE); 6663 } 6664 6665 /* 6666 * Decrement these before we call the page handler, since we may 6667 * end up getting called back one way or another before the handler 6668 * returns to this context. 6669 */ 6670 *len_left -= page_index->page_len; 6671 *len_used += page_index->page_len; 6672 6673 retval = page_index->select_handler(ctsio, page_index, 6674 (uint8_t *)page_header); 6675 6676 /* 6677 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6678 * wait until this queued command completes to finish processing 6679 * the mode page. If it returns anything other than 6680 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6681 * already set the sense information, freed the data pointer, and 6682 * completed the io for us. 6683 */ 6684 if (retval != CTL_RETVAL_COMPLETE) 6685 goto bailout_no_done; 6686 6687 /* 6688 * If the initiator sent us more than one page, parse the next one. 6689 */ 6690 if (*len_left > 0) 6691 goto do_next_page; 6692 6693 ctl_set_success(ctsio); 6694 free(ctsio->kern_data_ptr, M_CTL); 6695 ctl_done((union ctl_io *)ctsio); 6696 6697bailout_no_done: 6698 6699 return (CTL_RETVAL_COMPLETE); 6700 6701} 6702 6703int 6704ctl_mode_select(struct ctl_scsiio *ctsio) 6705{ 6706 int param_len, pf, sp; 6707 int header_size, bd_len; 6708 int len_left, len_used; 6709 struct ctl_page_index *page_index; 6710 struct ctl_lun *lun; 6711 int control_dev, page_len; 6712 union ctl_modepage_info *modepage_info; 6713 int retval; 6714 6715 pf = 0; 6716 sp = 0; 6717 page_len = 0; 6718 len_used = 0; 6719 len_left = 0; 6720 retval = 0; 6721 bd_len = 0; 6722 page_index = NULL; 6723 6724 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6725 6726 if (lun->be_lun->lun_type != T_DIRECT) 6727 control_dev = 1; 6728 else 6729 control_dev = 0; 6730 6731 switch (ctsio->cdb[0]) { 6732 case MODE_SELECT_6: { 6733 struct scsi_mode_select_6 *cdb; 6734 6735 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6736 6737 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6738 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6739 6740 param_len = cdb->length; 6741 header_size = sizeof(struct scsi_mode_header_6); 6742 break; 6743 } 6744 case MODE_SELECT_10: { 6745 struct scsi_mode_select_10 *cdb; 6746 6747 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6748 6749 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6750 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6751 6752 param_len = scsi_2btoul(cdb->length); 6753 header_size = sizeof(struct scsi_mode_header_10); 6754 break; 6755 } 6756 default: 6757 ctl_set_invalid_opcode(ctsio); 6758 ctl_done((union ctl_io *)ctsio); 6759 return (CTL_RETVAL_COMPLETE); 6760 break; /* NOTREACHED */ 6761 } 6762 6763 /* 6764 * From SPC-3: 6765 * "A parameter list length of zero indicates that the Data-Out Buffer 6766 * shall be empty. This condition shall not be considered as an error." 6767 */ 6768 if (param_len == 0) { 6769 ctl_set_success(ctsio); 6770 ctl_done((union ctl_io *)ctsio); 6771 return (CTL_RETVAL_COMPLETE); 6772 } 6773 6774 /* 6775 * Since we'll hit this the first time through, prior to 6776 * allocation, we don't need to free a data buffer here. 6777 */ 6778 if (param_len < header_size) { 6779 ctl_set_param_len_error(ctsio); 6780 ctl_done((union ctl_io *)ctsio); 6781 return (CTL_RETVAL_COMPLETE); 6782 } 6783 6784 /* 6785 * Allocate the data buffer and grab the user's data. In theory, 6786 * we shouldn't have to sanity check the parameter list length here 6787 * because the maximum size is 64K. We should be able to malloc 6788 * that much without too many problems. 6789 */ 6790 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6791 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6792 ctsio->kern_data_len = param_len; 6793 ctsio->kern_total_len = param_len; 6794 ctsio->kern_data_resid = 0; 6795 ctsio->kern_rel_offset = 0; 6796 ctsio->kern_sg_entries = 0; 6797 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6798 ctsio->be_move_done = ctl_config_move_done; 6799 ctl_datamove((union ctl_io *)ctsio); 6800 6801 return (CTL_RETVAL_COMPLETE); 6802 } 6803 6804 switch (ctsio->cdb[0]) { 6805 case MODE_SELECT_6: { 6806 struct scsi_mode_header_6 *mh6; 6807 6808 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6809 bd_len = mh6->blk_desc_len; 6810 break; 6811 } 6812 case MODE_SELECT_10: { 6813 struct scsi_mode_header_10 *mh10; 6814 6815 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6816 bd_len = scsi_2btoul(mh10->blk_desc_len); 6817 break; 6818 } 6819 default: 6820 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6821 break; 6822 } 6823 6824 if (param_len < (header_size + bd_len)) { 6825 free(ctsio->kern_data_ptr, M_CTL); 6826 ctl_set_param_len_error(ctsio); 6827 ctl_done((union ctl_io *)ctsio); 6828 return (CTL_RETVAL_COMPLETE); 6829 } 6830 6831 /* 6832 * Set the IO_CONT flag, so that if this I/O gets passed to 6833 * ctl_config_write_done(), it'll get passed back to 6834 * ctl_do_mode_select() for further processing, or completion if 6835 * we're all done. 6836 */ 6837 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6838 ctsio->io_cont = ctl_do_mode_select; 6839 6840 modepage_info = (union ctl_modepage_info *) 6841 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6842 6843 memset(modepage_info, 0, sizeof(*modepage_info)); 6844 6845 len_left = param_len - header_size - bd_len; 6846 len_used = header_size + bd_len; 6847 6848 modepage_info->header.len_left = len_left; 6849 modepage_info->header.len_used = len_used; 6850 6851 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6852} 6853 6854int 6855ctl_mode_sense(struct ctl_scsiio *ctsio) 6856{ 6857 struct ctl_lun *lun; 6858 int pc, page_code, dbd, llba, subpage; 6859 int alloc_len, page_len, header_len, total_len; 6860 struct scsi_mode_block_descr *block_desc; 6861 struct ctl_page_index *page_index; 6862 int control_dev; 6863 6864 dbd = 0; 6865 llba = 0; 6866 block_desc = NULL; 6867 page_index = NULL; 6868 6869 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6870 6871 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6872 6873 if (lun->be_lun->lun_type != T_DIRECT) 6874 control_dev = 1; 6875 else 6876 control_dev = 0; 6877 6878 if (lun->flags & CTL_LUN_PR_RESERVED) { 6879 uint32_t residx; 6880 6881 /* 6882 * XXX KDM need a lock here. 6883 */ 6884 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6885 if ((lun->res_type == SPR_TYPE_EX_AC 6886 && residx != lun->pr_res_idx) 6887 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6888 || lun->res_type == SPR_TYPE_EX_AC_AR) 6889 && lun->pr_keys[residx] == 0)) { 6890 ctl_set_reservation_conflict(ctsio); 6891 ctl_done((union ctl_io *)ctsio); 6892 return (CTL_RETVAL_COMPLETE); 6893 } 6894 } 6895 6896 switch (ctsio->cdb[0]) { 6897 case MODE_SENSE_6: { 6898 struct scsi_mode_sense_6 *cdb; 6899 6900 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6901 6902 header_len = sizeof(struct scsi_mode_hdr_6); 6903 if (cdb->byte2 & SMS_DBD) 6904 dbd = 1; 6905 else 6906 header_len += sizeof(struct scsi_mode_block_descr); 6907 6908 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6909 page_code = cdb->page & SMS_PAGE_CODE; 6910 subpage = cdb->subpage; 6911 alloc_len = cdb->length; 6912 break; 6913 } 6914 case MODE_SENSE_10: { 6915 struct scsi_mode_sense_10 *cdb; 6916 6917 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6918 6919 header_len = sizeof(struct scsi_mode_hdr_10); 6920 6921 if (cdb->byte2 & SMS_DBD) 6922 dbd = 1; 6923 else 6924 header_len += sizeof(struct scsi_mode_block_descr); 6925 if (cdb->byte2 & SMS10_LLBAA) 6926 llba = 1; 6927 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6928 page_code = cdb->page & SMS_PAGE_CODE; 6929 subpage = cdb->subpage; 6930 alloc_len = scsi_2btoul(cdb->length); 6931 break; 6932 } 6933 default: 6934 ctl_set_invalid_opcode(ctsio); 6935 ctl_done((union ctl_io *)ctsio); 6936 return (CTL_RETVAL_COMPLETE); 6937 break; /* NOTREACHED */ 6938 } 6939 6940 /* 6941 * We have to make a first pass through to calculate the size of 6942 * the pages that match the user's query. Then we allocate enough 6943 * memory to hold it, and actually copy the data into the buffer. 6944 */ 6945 switch (page_code) { 6946 case SMS_ALL_PAGES_PAGE: { 6947 int i; 6948 6949 page_len = 0; 6950 6951 /* 6952 * At the moment, values other than 0 and 0xff here are 6953 * reserved according to SPC-3. 6954 */ 6955 if ((subpage != SMS_SUBPAGE_PAGE_0) 6956 && (subpage != SMS_SUBPAGE_ALL)) { 6957 ctl_set_invalid_field(ctsio, 6958 /*sks_valid*/ 1, 6959 /*command*/ 1, 6960 /*field*/ 3, 6961 /*bit_valid*/ 0, 6962 /*bit*/ 0); 6963 ctl_done((union ctl_io *)ctsio); 6964 return (CTL_RETVAL_COMPLETE); 6965 } 6966 6967 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6968 if ((control_dev != 0) 6969 && (lun->mode_pages.index[i].page_flags & 6970 CTL_PAGE_FLAG_DISK_ONLY)) 6971 continue; 6972 6973 /* 6974 * We don't use this subpage if the user didn't 6975 * request all subpages. 6976 */ 6977 if ((lun->mode_pages.index[i].subpage != 0) 6978 && (subpage == SMS_SUBPAGE_PAGE_0)) 6979 continue; 6980 6981#if 0 6982 printf("found page %#x len %d\n", 6983 lun->mode_pages.index[i].page_code & 6984 SMPH_PC_MASK, 6985 lun->mode_pages.index[i].page_len); 6986#endif 6987 page_len += lun->mode_pages.index[i].page_len; 6988 } 6989 break; 6990 } 6991 default: { 6992 int i; 6993 6994 page_len = 0; 6995 6996 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6997 /* Look for the right page code */ 6998 if ((lun->mode_pages.index[i].page_code & 6999 SMPH_PC_MASK) != page_code) 7000 continue; 7001 7002 /* Look for the right subpage or the subpage wildcard*/ 7003 if ((lun->mode_pages.index[i].subpage != subpage) 7004 && (subpage != SMS_SUBPAGE_ALL)) 7005 continue; 7006 7007 /* Make sure the page is supported for this dev type */ 7008 if ((control_dev != 0) 7009 && (lun->mode_pages.index[i].page_flags & 7010 CTL_PAGE_FLAG_DISK_ONLY)) 7011 continue; 7012 7013#if 0 7014 printf("found page %#x len %d\n", 7015 lun->mode_pages.index[i].page_code & 7016 SMPH_PC_MASK, 7017 lun->mode_pages.index[i].page_len); 7018#endif 7019 7020 page_len += lun->mode_pages.index[i].page_len; 7021 } 7022 7023 if (page_len == 0) { 7024 ctl_set_invalid_field(ctsio, 7025 /*sks_valid*/ 1, 7026 /*command*/ 1, 7027 /*field*/ 2, 7028 /*bit_valid*/ 1, 7029 /*bit*/ 5); 7030 ctl_done((union ctl_io *)ctsio); 7031 return (CTL_RETVAL_COMPLETE); 7032 } 7033 break; 7034 } 7035 } 7036 7037 total_len = header_len + page_len; 7038#if 0 7039 printf("header_len = %d, page_len = %d, total_len = %d\n", 7040 header_len, page_len, total_len); 7041#endif 7042 7043 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7044 ctsio->kern_sg_entries = 0; 7045 ctsio->kern_data_resid = 0; 7046 ctsio->kern_rel_offset = 0; 7047 if (total_len < alloc_len) { 7048 ctsio->residual = alloc_len - total_len; 7049 ctsio->kern_data_len = total_len; 7050 ctsio->kern_total_len = total_len; 7051 } else { 7052 ctsio->residual = 0; 7053 ctsio->kern_data_len = alloc_len; 7054 ctsio->kern_total_len = alloc_len; 7055 } 7056 7057 switch (ctsio->cdb[0]) { 7058 case MODE_SENSE_6: { 7059 struct scsi_mode_hdr_6 *header; 7060 7061 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7062 7063 header->datalen = ctl_min(total_len - 1, 254); 7064 if (control_dev == 0) { 7065 header->dev_specific = 0x10; /* DPOFUA */ 7066 if ((lun->flags & CTL_LUN_READONLY) || 7067 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7068 .eca_and_aen & SCP_SWP) != 0) 7069 header->dev_specific |= 0x80; /* WP */ 7070 } 7071 if (dbd) 7072 header->block_descr_len = 0; 7073 else 7074 header->block_descr_len = 7075 sizeof(struct scsi_mode_block_descr); 7076 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7077 break; 7078 } 7079 case MODE_SENSE_10: { 7080 struct scsi_mode_hdr_10 *header; 7081 int datalen; 7082 7083 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7084 7085 datalen = ctl_min(total_len - 2, 65533); 7086 scsi_ulto2b(datalen, header->datalen); 7087 if (control_dev == 0) { 7088 header->dev_specific = 0x10; /* DPOFUA */ 7089 if ((lun->flags & CTL_LUN_READONLY) || 7090 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7091 .eca_and_aen & SCP_SWP) != 0) 7092 header->dev_specific |= 0x80; /* WP */ 7093 } 7094 if (dbd) 7095 scsi_ulto2b(0, header->block_descr_len); 7096 else 7097 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7098 header->block_descr_len); 7099 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7100 break; 7101 } 7102 default: 7103 panic("invalid CDB type %#x", ctsio->cdb[0]); 7104 break; /* NOTREACHED */ 7105 } 7106 7107 /* 7108 * If we've got a disk, use its blocksize in the block 7109 * descriptor. Otherwise, just set it to 0. 7110 */ 7111 if (dbd == 0) { 7112 if (control_dev == 0) 7113 scsi_ulto3b(lun->be_lun->blocksize, 7114 block_desc->block_len); 7115 else 7116 scsi_ulto3b(0, block_desc->block_len); 7117 } 7118 7119 switch (page_code) { 7120 case SMS_ALL_PAGES_PAGE: { 7121 int i, data_used; 7122 7123 data_used = header_len; 7124 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7125 struct ctl_page_index *page_index; 7126 7127 page_index = &lun->mode_pages.index[i]; 7128 7129 if ((control_dev != 0) 7130 && (page_index->page_flags & 7131 CTL_PAGE_FLAG_DISK_ONLY)) 7132 continue; 7133 7134 /* 7135 * We don't use this subpage if the user didn't 7136 * request all subpages. We already checked (above) 7137 * to make sure the user only specified a subpage 7138 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7139 */ 7140 if ((page_index->subpage != 0) 7141 && (subpage == SMS_SUBPAGE_PAGE_0)) 7142 continue; 7143 7144 /* 7145 * Call the handler, if it exists, to update the 7146 * page to the latest values. 7147 */ 7148 if (page_index->sense_handler != NULL) 7149 page_index->sense_handler(ctsio, page_index,pc); 7150 7151 memcpy(ctsio->kern_data_ptr + data_used, 7152 page_index->page_data + 7153 (page_index->page_len * pc), 7154 page_index->page_len); 7155 data_used += page_index->page_len; 7156 } 7157 break; 7158 } 7159 default: { 7160 int i, data_used; 7161 7162 data_used = header_len; 7163 7164 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7165 struct ctl_page_index *page_index; 7166 7167 page_index = &lun->mode_pages.index[i]; 7168 7169 /* Look for the right page code */ 7170 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7171 continue; 7172 7173 /* Look for the right subpage or the subpage wildcard*/ 7174 if ((page_index->subpage != subpage) 7175 && (subpage != SMS_SUBPAGE_ALL)) 7176 continue; 7177 7178 /* Make sure the page is supported for this dev type */ 7179 if ((control_dev != 0) 7180 && (page_index->page_flags & 7181 CTL_PAGE_FLAG_DISK_ONLY)) 7182 continue; 7183 7184 /* 7185 * Call the handler, if it exists, to update the 7186 * page to the latest values. 7187 */ 7188 if (page_index->sense_handler != NULL) 7189 page_index->sense_handler(ctsio, page_index,pc); 7190 7191 memcpy(ctsio->kern_data_ptr + data_used, 7192 page_index->page_data + 7193 (page_index->page_len * pc), 7194 page_index->page_len); 7195 data_used += page_index->page_len; 7196 } 7197 break; 7198 } 7199 } 7200 7201 ctsio->scsi_status = SCSI_STATUS_OK; 7202 7203 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7204 ctsio->be_move_done = ctl_config_move_done; 7205 ctl_datamove((union ctl_io *)ctsio); 7206 7207 return (CTL_RETVAL_COMPLETE); 7208} 7209 7210int 7211ctl_read_capacity(struct ctl_scsiio *ctsio) 7212{ 7213 struct scsi_read_capacity *cdb; 7214 struct scsi_read_capacity_data *data; 7215 struct ctl_lun *lun; 7216 uint32_t lba; 7217 7218 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7219 7220 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7221 7222 lba = scsi_4btoul(cdb->addr); 7223 if (((cdb->pmi & SRC_PMI) == 0) 7224 && (lba != 0)) { 7225 ctl_set_invalid_field(/*ctsio*/ ctsio, 7226 /*sks_valid*/ 1, 7227 /*command*/ 1, 7228 /*field*/ 2, 7229 /*bit_valid*/ 0, 7230 /*bit*/ 0); 7231 ctl_done((union ctl_io *)ctsio); 7232 return (CTL_RETVAL_COMPLETE); 7233 } 7234 7235 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7236 7237 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7238 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7239 ctsio->residual = 0; 7240 ctsio->kern_data_len = sizeof(*data); 7241 ctsio->kern_total_len = sizeof(*data); 7242 ctsio->kern_data_resid = 0; 7243 ctsio->kern_rel_offset = 0; 7244 ctsio->kern_sg_entries = 0; 7245 7246 /* 7247 * If the maximum LBA is greater than 0xfffffffe, the user must 7248 * issue a SERVICE ACTION IN (16) command, with the read capacity 7249 * serivce action set. 7250 */ 7251 if (lun->be_lun->maxlba > 0xfffffffe) 7252 scsi_ulto4b(0xffffffff, data->addr); 7253 else 7254 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7255 7256 /* 7257 * XXX KDM this may not be 512 bytes... 7258 */ 7259 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7260 7261 ctsio->scsi_status = SCSI_STATUS_OK; 7262 7263 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7264 ctsio->be_move_done = ctl_config_move_done; 7265 ctl_datamove((union ctl_io *)ctsio); 7266 7267 return (CTL_RETVAL_COMPLETE); 7268} 7269 7270int 7271ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7272{ 7273 struct scsi_read_capacity_16 *cdb; 7274 struct scsi_read_capacity_data_long *data; 7275 struct ctl_lun *lun; 7276 uint64_t lba; 7277 uint32_t alloc_len; 7278 7279 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7280 7281 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7282 7283 alloc_len = scsi_4btoul(cdb->alloc_len); 7284 lba = scsi_8btou64(cdb->addr); 7285 7286 if ((cdb->reladr & SRC16_PMI) 7287 && (lba != 0)) { 7288 ctl_set_invalid_field(/*ctsio*/ ctsio, 7289 /*sks_valid*/ 1, 7290 /*command*/ 1, 7291 /*field*/ 2, 7292 /*bit_valid*/ 0, 7293 /*bit*/ 0); 7294 ctl_done((union ctl_io *)ctsio); 7295 return (CTL_RETVAL_COMPLETE); 7296 } 7297 7298 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7299 7300 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7301 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7302 7303 if (sizeof(*data) < alloc_len) { 7304 ctsio->residual = alloc_len - sizeof(*data); 7305 ctsio->kern_data_len = sizeof(*data); 7306 ctsio->kern_total_len = sizeof(*data); 7307 } else { 7308 ctsio->residual = 0; 7309 ctsio->kern_data_len = alloc_len; 7310 ctsio->kern_total_len = alloc_len; 7311 } 7312 ctsio->kern_data_resid = 0; 7313 ctsio->kern_rel_offset = 0; 7314 ctsio->kern_sg_entries = 0; 7315 7316 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7317 /* XXX KDM this may not be 512 bytes... */ 7318 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7319 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7320 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7321 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7322 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7323 7324 ctsio->scsi_status = SCSI_STATUS_OK; 7325 7326 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7327 ctsio->be_move_done = ctl_config_move_done; 7328 ctl_datamove((union ctl_io *)ctsio); 7329 7330 return (CTL_RETVAL_COMPLETE); 7331} 7332 7333int 7334ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7335{ 7336 struct scsi_maintenance_in *cdb; 7337 int retval; 7338 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7339 int num_target_port_groups, num_target_ports, single; 7340 struct ctl_lun *lun; 7341 struct ctl_softc *softc; 7342 struct ctl_port *port; 7343 struct scsi_target_group_data *rtg_ptr; 7344 struct scsi_target_group_data_extended *rtg_ext_ptr; 7345 struct scsi_target_port_group_descriptor *tpg_desc; 7346 7347 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7348 7349 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7350 softc = control_softc; 7351 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7352 7353 retval = CTL_RETVAL_COMPLETE; 7354 7355 switch (cdb->byte2 & STG_PDF_MASK) { 7356 case STG_PDF_LENGTH: 7357 ext = 0; 7358 break; 7359 case STG_PDF_EXTENDED: 7360 ext = 1; 7361 break; 7362 default: 7363 ctl_set_invalid_field(/*ctsio*/ ctsio, 7364 /*sks_valid*/ 1, 7365 /*command*/ 1, 7366 /*field*/ 2, 7367 /*bit_valid*/ 1, 7368 /*bit*/ 5); 7369 ctl_done((union ctl_io *)ctsio); 7370 return(retval); 7371 } 7372 7373 single = ctl_is_single; 7374 if (single) 7375 num_target_port_groups = 1; 7376 else 7377 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7378 num_target_ports = 0; 7379 mtx_lock(&softc->ctl_lock); 7380 STAILQ_FOREACH(port, &softc->port_list, links) { 7381 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7382 continue; 7383 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7384 continue; 7385 num_target_ports++; 7386 } 7387 mtx_unlock(&softc->ctl_lock); 7388 7389 if (ext) 7390 total_len = sizeof(struct scsi_target_group_data_extended); 7391 else 7392 total_len = sizeof(struct scsi_target_group_data); 7393 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7394 num_target_port_groups + 7395 sizeof(struct scsi_target_port_descriptor) * 7396 num_target_ports * num_target_port_groups; 7397 7398 alloc_len = scsi_4btoul(cdb->length); 7399 7400 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7401 7402 ctsio->kern_sg_entries = 0; 7403 7404 if (total_len < alloc_len) { 7405 ctsio->residual = alloc_len - total_len; 7406 ctsio->kern_data_len = total_len; 7407 ctsio->kern_total_len = total_len; 7408 } else { 7409 ctsio->residual = 0; 7410 ctsio->kern_data_len = alloc_len; 7411 ctsio->kern_total_len = alloc_len; 7412 } 7413 ctsio->kern_data_resid = 0; 7414 ctsio->kern_rel_offset = 0; 7415 7416 if (ext) { 7417 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7418 ctsio->kern_data_ptr; 7419 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7420 rtg_ext_ptr->format_type = 0x10; 7421 rtg_ext_ptr->implicit_transition_time = 0; 7422 tpg_desc = &rtg_ext_ptr->groups[0]; 7423 } else { 7424 rtg_ptr = (struct scsi_target_group_data *) 7425 ctsio->kern_data_ptr; 7426 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7427 tpg_desc = &rtg_ptr->groups[0]; 7428 } 7429 7430 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7431 mtx_lock(&softc->ctl_lock); 7432 for (g = 0; g < num_target_port_groups; g++) { 7433 if (g == pg) 7434 tpg_desc->pref_state = TPG_PRIMARY | 7435 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7436 else 7437 tpg_desc->pref_state = 7438 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7439 tpg_desc->support = TPG_AO_SUP; 7440 if (!single) 7441 tpg_desc->support |= TPG_AN_SUP; 7442 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7443 tpg_desc->status = TPG_IMPLICIT; 7444 pc = 0; 7445 STAILQ_FOREACH(port, &softc->port_list, links) { 7446 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7447 continue; 7448 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7449 CTL_MAX_LUNS) 7450 continue; 7451 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7452 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7453 relative_target_port_identifier); 7454 pc++; 7455 } 7456 tpg_desc->target_port_count = pc; 7457 tpg_desc = (struct scsi_target_port_group_descriptor *) 7458 &tpg_desc->descriptors[pc]; 7459 } 7460 mtx_unlock(&softc->ctl_lock); 7461 7462 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7463 ctsio->be_move_done = ctl_config_move_done; 7464 7465 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7466 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7467 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7468 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7469 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7470 7471 ctl_datamove((union ctl_io *)ctsio); 7472 return(retval); 7473} 7474 7475int 7476ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7477{ 7478 struct ctl_lun *lun; 7479 struct scsi_report_supported_opcodes *cdb; 7480 const struct ctl_cmd_entry *entry, *sentry; 7481 struct scsi_report_supported_opcodes_all *all; 7482 struct scsi_report_supported_opcodes_descr *descr; 7483 struct scsi_report_supported_opcodes_one *one; 7484 int retval; 7485 int alloc_len, total_len; 7486 int opcode, service_action, i, j, num; 7487 7488 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7489 7490 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7491 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7492 7493 retval = CTL_RETVAL_COMPLETE; 7494 7495 opcode = cdb->requested_opcode; 7496 service_action = scsi_2btoul(cdb->requested_service_action); 7497 switch (cdb->options & RSO_OPTIONS_MASK) { 7498 case RSO_OPTIONS_ALL: 7499 num = 0; 7500 for (i = 0; i < 256; i++) { 7501 entry = &ctl_cmd_table[i]; 7502 if (entry->flags & CTL_CMD_FLAG_SA5) { 7503 for (j = 0; j < 32; j++) { 7504 sentry = &((const struct ctl_cmd_entry *) 7505 entry->execute)[j]; 7506 if (ctl_cmd_applicable( 7507 lun->be_lun->lun_type, sentry)) 7508 num++; 7509 } 7510 } else { 7511 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7512 entry)) 7513 num++; 7514 } 7515 } 7516 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7517 num * sizeof(struct scsi_report_supported_opcodes_descr); 7518 break; 7519 case RSO_OPTIONS_OC: 7520 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7521 ctl_set_invalid_field(/*ctsio*/ ctsio, 7522 /*sks_valid*/ 1, 7523 /*command*/ 1, 7524 /*field*/ 2, 7525 /*bit_valid*/ 1, 7526 /*bit*/ 2); 7527 ctl_done((union ctl_io *)ctsio); 7528 return (CTL_RETVAL_COMPLETE); 7529 } 7530 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7531 break; 7532 case RSO_OPTIONS_OC_SA: 7533 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7534 service_action >= 32) { 7535 ctl_set_invalid_field(/*ctsio*/ ctsio, 7536 /*sks_valid*/ 1, 7537 /*command*/ 1, 7538 /*field*/ 2, 7539 /*bit_valid*/ 1, 7540 /*bit*/ 2); 7541 ctl_done((union ctl_io *)ctsio); 7542 return (CTL_RETVAL_COMPLETE); 7543 } 7544 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7545 break; 7546 default: 7547 ctl_set_invalid_field(/*ctsio*/ ctsio, 7548 /*sks_valid*/ 1, 7549 /*command*/ 1, 7550 /*field*/ 2, 7551 /*bit_valid*/ 1, 7552 /*bit*/ 2); 7553 ctl_done((union ctl_io *)ctsio); 7554 return (CTL_RETVAL_COMPLETE); 7555 } 7556 7557 alloc_len = scsi_4btoul(cdb->length); 7558 7559 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7560 7561 ctsio->kern_sg_entries = 0; 7562 7563 if (total_len < alloc_len) { 7564 ctsio->residual = alloc_len - total_len; 7565 ctsio->kern_data_len = total_len; 7566 ctsio->kern_total_len = total_len; 7567 } else { 7568 ctsio->residual = 0; 7569 ctsio->kern_data_len = alloc_len; 7570 ctsio->kern_total_len = alloc_len; 7571 } 7572 ctsio->kern_data_resid = 0; 7573 ctsio->kern_rel_offset = 0; 7574 7575 switch (cdb->options & RSO_OPTIONS_MASK) { 7576 case RSO_OPTIONS_ALL: 7577 all = (struct scsi_report_supported_opcodes_all *) 7578 ctsio->kern_data_ptr; 7579 num = 0; 7580 for (i = 0; i < 256; i++) { 7581 entry = &ctl_cmd_table[i]; 7582 if (entry->flags & CTL_CMD_FLAG_SA5) { 7583 for (j = 0; j < 32; j++) { 7584 sentry = &((const struct ctl_cmd_entry *) 7585 entry->execute)[j]; 7586 if (!ctl_cmd_applicable( 7587 lun->be_lun->lun_type, sentry)) 7588 continue; 7589 descr = &all->descr[num++]; 7590 descr->opcode = i; 7591 scsi_ulto2b(j, descr->service_action); 7592 descr->flags = RSO_SERVACTV; 7593 scsi_ulto2b(sentry->length, 7594 descr->cdb_length); 7595 } 7596 } else { 7597 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7598 entry)) 7599 continue; 7600 descr = &all->descr[num++]; 7601 descr->opcode = i; 7602 scsi_ulto2b(0, descr->service_action); 7603 descr->flags = 0; 7604 scsi_ulto2b(entry->length, descr->cdb_length); 7605 } 7606 } 7607 scsi_ulto4b( 7608 num * sizeof(struct scsi_report_supported_opcodes_descr), 7609 all->length); 7610 break; 7611 case RSO_OPTIONS_OC: 7612 one = (struct scsi_report_supported_opcodes_one *) 7613 ctsio->kern_data_ptr; 7614 entry = &ctl_cmd_table[opcode]; 7615 goto fill_one; 7616 case RSO_OPTIONS_OC_SA: 7617 one = (struct scsi_report_supported_opcodes_one *) 7618 ctsio->kern_data_ptr; 7619 entry = &ctl_cmd_table[opcode]; 7620 entry = &((const struct ctl_cmd_entry *) 7621 entry->execute)[service_action]; 7622fill_one: 7623 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7624 one->support = 3; 7625 scsi_ulto2b(entry->length, one->cdb_length); 7626 one->cdb_usage[0] = opcode; 7627 memcpy(&one->cdb_usage[1], entry->usage, 7628 entry->length - 1); 7629 } else 7630 one->support = 1; 7631 break; 7632 } 7633 7634 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7635 ctsio->be_move_done = ctl_config_move_done; 7636 7637 ctl_datamove((union ctl_io *)ctsio); 7638 return(retval); 7639} 7640 7641int 7642ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7643{ 7644 struct ctl_lun *lun; 7645 struct scsi_report_supported_tmf *cdb; 7646 struct scsi_report_supported_tmf_data *data; 7647 int retval; 7648 int alloc_len, total_len; 7649 7650 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7651 7652 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7653 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7654 7655 retval = CTL_RETVAL_COMPLETE; 7656 7657 total_len = sizeof(struct scsi_report_supported_tmf_data); 7658 alloc_len = scsi_4btoul(cdb->length); 7659 7660 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7661 7662 ctsio->kern_sg_entries = 0; 7663 7664 if (total_len < alloc_len) { 7665 ctsio->residual = alloc_len - total_len; 7666 ctsio->kern_data_len = total_len; 7667 ctsio->kern_total_len = total_len; 7668 } else { 7669 ctsio->residual = 0; 7670 ctsio->kern_data_len = alloc_len; 7671 ctsio->kern_total_len = alloc_len; 7672 } 7673 ctsio->kern_data_resid = 0; 7674 ctsio->kern_rel_offset = 0; 7675 7676 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7677 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7678 data->byte2 |= RST_ITNRS; 7679 7680 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7681 ctsio->be_move_done = ctl_config_move_done; 7682 7683 ctl_datamove((union ctl_io *)ctsio); 7684 return (retval); 7685} 7686 7687int 7688ctl_report_timestamp(struct ctl_scsiio *ctsio) 7689{ 7690 struct ctl_lun *lun; 7691 struct scsi_report_timestamp *cdb; 7692 struct scsi_report_timestamp_data *data; 7693 struct timeval tv; 7694 int64_t timestamp; 7695 int retval; 7696 int alloc_len, total_len; 7697 7698 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7699 7700 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7701 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7702 7703 retval = CTL_RETVAL_COMPLETE; 7704 7705 total_len = sizeof(struct scsi_report_timestamp_data); 7706 alloc_len = scsi_4btoul(cdb->length); 7707 7708 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7709 7710 ctsio->kern_sg_entries = 0; 7711 7712 if (total_len < alloc_len) { 7713 ctsio->residual = alloc_len - total_len; 7714 ctsio->kern_data_len = total_len; 7715 ctsio->kern_total_len = total_len; 7716 } else { 7717 ctsio->residual = 0; 7718 ctsio->kern_data_len = alloc_len; 7719 ctsio->kern_total_len = alloc_len; 7720 } 7721 ctsio->kern_data_resid = 0; 7722 ctsio->kern_rel_offset = 0; 7723 7724 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7725 scsi_ulto2b(sizeof(*data) - 2, data->length); 7726 data->origin = RTS_ORIG_OUTSIDE; 7727 getmicrotime(&tv); 7728 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7729 scsi_ulto4b(timestamp >> 16, data->timestamp); 7730 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7731 7732 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7733 ctsio->be_move_done = ctl_config_move_done; 7734 7735 ctl_datamove((union ctl_io *)ctsio); 7736 return (retval); 7737} 7738 7739int 7740ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7741{ 7742 struct scsi_per_res_in *cdb; 7743 int alloc_len, total_len = 0; 7744 /* struct scsi_per_res_in_rsrv in_data; */ 7745 struct ctl_lun *lun; 7746 struct ctl_softc *softc; 7747 7748 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7749 7750 softc = control_softc; 7751 7752 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7753 7754 alloc_len = scsi_2btoul(cdb->length); 7755 7756 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7757 7758retry: 7759 mtx_lock(&lun->lun_lock); 7760 switch (cdb->action) { 7761 case SPRI_RK: /* read keys */ 7762 total_len = sizeof(struct scsi_per_res_in_keys) + 7763 lun->pr_key_count * 7764 sizeof(struct scsi_per_res_key); 7765 break; 7766 case SPRI_RR: /* read reservation */ 7767 if (lun->flags & CTL_LUN_PR_RESERVED) 7768 total_len = sizeof(struct scsi_per_res_in_rsrv); 7769 else 7770 total_len = sizeof(struct scsi_per_res_in_header); 7771 break; 7772 case SPRI_RC: /* report capabilities */ 7773 total_len = sizeof(struct scsi_per_res_cap); 7774 break; 7775 case SPRI_RS: /* read full status */ 7776 total_len = sizeof(struct scsi_per_res_in_header) + 7777 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7778 lun->pr_key_count; 7779 break; 7780 default: 7781 panic("Invalid PR type %x", cdb->action); 7782 } 7783 mtx_unlock(&lun->lun_lock); 7784 7785 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7786 7787 if (total_len < alloc_len) { 7788 ctsio->residual = alloc_len - total_len; 7789 ctsio->kern_data_len = total_len; 7790 ctsio->kern_total_len = total_len; 7791 } else { 7792 ctsio->residual = 0; 7793 ctsio->kern_data_len = alloc_len; 7794 ctsio->kern_total_len = alloc_len; 7795 } 7796 7797 ctsio->kern_data_resid = 0; 7798 ctsio->kern_rel_offset = 0; 7799 ctsio->kern_sg_entries = 0; 7800 7801 mtx_lock(&lun->lun_lock); 7802 switch (cdb->action) { 7803 case SPRI_RK: { // read keys 7804 struct scsi_per_res_in_keys *res_keys; 7805 int i, key_count; 7806 7807 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7808 7809 /* 7810 * We had to drop the lock to allocate our buffer, which 7811 * leaves time for someone to come in with another 7812 * persistent reservation. (That is unlikely, though, 7813 * since this should be the only persistent reservation 7814 * command active right now.) 7815 */ 7816 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7817 (lun->pr_key_count * 7818 sizeof(struct scsi_per_res_key)))){ 7819 mtx_unlock(&lun->lun_lock); 7820 free(ctsio->kern_data_ptr, M_CTL); 7821 printf("%s: reservation length changed, retrying\n", 7822 __func__); 7823 goto retry; 7824 } 7825 7826 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7827 7828 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7829 lun->pr_key_count, res_keys->header.length); 7830 7831 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7832 if (lun->pr_keys[i] == 0) 7833 continue; 7834 7835 /* 7836 * We used lun->pr_key_count to calculate the 7837 * size to allocate. If it turns out the number of 7838 * initiators with the registered flag set is 7839 * larger than that (i.e. they haven't been kept in 7840 * sync), we've got a problem. 7841 */ 7842 if (key_count >= lun->pr_key_count) { 7843#ifdef NEEDTOPORT 7844 csevent_log(CSC_CTL | CSC_SHELF_SW | 7845 CTL_PR_ERROR, 7846 csevent_LogType_Fault, 7847 csevent_AlertLevel_Yellow, 7848 csevent_FRU_ShelfController, 7849 csevent_FRU_Firmware, 7850 csevent_FRU_Unknown, 7851 "registered keys %d >= key " 7852 "count %d", key_count, 7853 lun->pr_key_count); 7854#endif 7855 key_count++; 7856 continue; 7857 } 7858 scsi_u64to8b(lun->pr_keys[i], 7859 res_keys->keys[key_count].key); 7860 key_count++; 7861 } 7862 break; 7863 } 7864 case SPRI_RR: { // read reservation 7865 struct scsi_per_res_in_rsrv *res; 7866 int tmp_len, header_only; 7867 7868 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7869 7870 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7871 7872 if (lun->flags & CTL_LUN_PR_RESERVED) 7873 { 7874 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7875 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7876 res->header.length); 7877 header_only = 0; 7878 } else { 7879 tmp_len = sizeof(struct scsi_per_res_in_header); 7880 scsi_ulto4b(0, res->header.length); 7881 header_only = 1; 7882 } 7883 7884 /* 7885 * We had to drop the lock to allocate our buffer, which 7886 * leaves time for someone to come in with another 7887 * persistent reservation. (That is unlikely, though, 7888 * since this should be the only persistent reservation 7889 * command active right now.) 7890 */ 7891 if (tmp_len != total_len) { 7892 mtx_unlock(&lun->lun_lock); 7893 free(ctsio->kern_data_ptr, M_CTL); 7894 printf("%s: reservation status changed, retrying\n", 7895 __func__); 7896 goto retry; 7897 } 7898 7899 /* 7900 * No reservation held, so we're done. 7901 */ 7902 if (header_only != 0) 7903 break; 7904 7905 /* 7906 * If the registration is an All Registrants type, the key 7907 * is 0, since it doesn't really matter. 7908 */ 7909 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7910 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 7911 res->data.reservation); 7912 } 7913 res->data.scopetype = lun->res_type; 7914 break; 7915 } 7916 case SPRI_RC: //report capabilities 7917 { 7918 struct scsi_per_res_cap *res_cap; 7919 uint16_t type_mask; 7920 7921 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7922 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7923 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7924 type_mask = SPRI_TM_WR_EX_AR | 7925 SPRI_TM_EX_AC_RO | 7926 SPRI_TM_WR_EX_RO | 7927 SPRI_TM_EX_AC | 7928 SPRI_TM_WR_EX | 7929 SPRI_TM_EX_AC_AR; 7930 scsi_ulto2b(type_mask, res_cap->type_mask); 7931 break; 7932 } 7933 case SPRI_RS: { // read full status 7934 struct scsi_per_res_in_full *res_status; 7935 struct scsi_per_res_in_full_desc *res_desc; 7936 struct ctl_port *port; 7937 int i, len; 7938 7939 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7940 7941 /* 7942 * We had to drop the lock to allocate our buffer, which 7943 * leaves time for someone to come in with another 7944 * persistent reservation. (That is unlikely, though, 7945 * since this should be the only persistent reservation 7946 * command active right now.) 7947 */ 7948 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7949 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7950 lun->pr_key_count)){ 7951 mtx_unlock(&lun->lun_lock); 7952 free(ctsio->kern_data_ptr, M_CTL); 7953 printf("%s: reservation length changed, retrying\n", 7954 __func__); 7955 goto retry; 7956 } 7957 7958 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7959 7960 res_desc = &res_status->desc[0]; 7961 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7962 if (lun->pr_keys[i] == 0) 7963 continue; 7964 7965 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 7966 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7967 (lun->pr_res_idx == i || 7968 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7969 res_desc->flags = SPRI_FULL_R_HOLDER; 7970 res_desc->scopetype = lun->res_type; 7971 } 7972 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7973 res_desc->rel_trgt_port_id); 7974 len = 0; 7975 port = softc->ctl_ports[ 7976 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7977 if (port != NULL) 7978 len = ctl_create_iid(port, 7979 i % CTL_MAX_INIT_PER_PORT, 7980 res_desc->transport_id); 7981 scsi_ulto4b(len, res_desc->additional_length); 7982 res_desc = (struct scsi_per_res_in_full_desc *) 7983 &res_desc->transport_id[len]; 7984 } 7985 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7986 res_status->header.length); 7987 break; 7988 } 7989 default: 7990 /* 7991 * This is a bug, because we just checked for this above, 7992 * and should have returned an error. 7993 */ 7994 panic("Invalid PR type %x", cdb->action); 7995 break; /* NOTREACHED */ 7996 } 7997 mtx_unlock(&lun->lun_lock); 7998 7999 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8000 ctsio->be_move_done = ctl_config_move_done; 8001 8002 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8003 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8004 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8005 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8006 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8007 8008 ctl_datamove((union ctl_io *)ctsio); 8009 8010 return (CTL_RETVAL_COMPLETE); 8011} 8012 8013/* 8014 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8015 * it should return. 8016 */ 8017static int 8018ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8019 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8020 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8021 struct scsi_per_res_out_parms* param) 8022{ 8023 union ctl_ha_msg persis_io; 8024 int retval, i; 8025 int isc_retval; 8026 8027 retval = 0; 8028 8029 mtx_lock(&lun->lun_lock); 8030 if (sa_res_key == 0) { 8031 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8032 /* validate scope and type */ 8033 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8034 SPR_LU_SCOPE) { 8035 mtx_unlock(&lun->lun_lock); 8036 ctl_set_invalid_field(/*ctsio*/ ctsio, 8037 /*sks_valid*/ 1, 8038 /*command*/ 1, 8039 /*field*/ 2, 8040 /*bit_valid*/ 1, 8041 /*bit*/ 4); 8042 ctl_done((union ctl_io *)ctsio); 8043 return (1); 8044 } 8045 8046 if (type>8 || type==2 || type==4 || type==0) { 8047 mtx_unlock(&lun->lun_lock); 8048 ctl_set_invalid_field(/*ctsio*/ ctsio, 8049 /*sks_valid*/ 1, 8050 /*command*/ 1, 8051 /*field*/ 2, 8052 /*bit_valid*/ 1, 8053 /*bit*/ 0); 8054 ctl_done((union ctl_io *)ctsio); 8055 return (1); 8056 } 8057 8058 /* 8059 * Unregister everybody else and build UA for 8060 * them 8061 */ 8062 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8063 if (i == residx || lun->pr_keys[i] == 0) 8064 continue; 8065 8066 if (!persis_offset 8067 && i <CTL_MAX_INITIATORS) 8068 lun->pending_ua[i] |= 8069 CTL_UA_REG_PREEMPT; 8070 else if (persis_offset 8071 && i >= persis_offset) 8072 lun->pending_ua[i-persis_offset] |= 8073 CTL_UA_REG_PREEMPT; 8074 lun->pr_keys[i] = 0; 8075 } 8076 lun->pr_key_count = 1; 8077 lun->res_type = type; 8078 if (lun->res_type != SPR_TYPE_WR_EX_AR 8079 && lun->res_type != SPR_TYPE_EX_AC_AR) 8080 lun->pr_res_idx = residx; 8081 8082 /* send msg to other side */ 8083 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8084 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8085 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8086 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8087 persis_io.pr.pr_info.res_type = type; 8088 memcpy(persis_io.pr.pr_info.sa_res_key, 8089 param->serv_act_res_key, 8090 sizeof(param->serv_act_res_key)); 8091 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8092 &persis_io, sizeof(persis_io), 0)) > 8093 CTL_HA_STATUS_SUCCESS) { 8094 printf("CTL:Persis Out error returned " 8095 "from ctl_ha_msg_send %d\n", 8096 isc_retval); 8097 } 8098 } else { 8099 /* not all registrants */ 8100 mtx_unlock(&lun->lun_lock); 8101 free(ctsio->kern_data_ptr, M_CTL); 8102 ctl_set_invalid_field(ctsio, 8103 /*sks_valid*/ 1, 8104 /*command*/ 0, 8105 /*field*/ 8, 8106 /*bit_valid*/ 0, 8107 /*bit*/ 0); 8108 ctl_done((union ctl_io *)ctsio); 8109 return (1); 8110 } 8111 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8112 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8113 int found = 0; 8114 8115 if (res_key == sa_res_key) { 8116 /* special case */ 8117 /* 8118 * The spec implies this is not good but doesn't 8119 * say what to do. There are two choices either 8120 * generate a res conflict or check condition 8121 * with illegal field in parameter data. Since 8122 * that is what is done when the sa_res_key is 8123 * zero I'll take that approach since this has 8124 * to do with the sa_res_key. 8125 */ 8126 mtx_unlock(&lun->lun_lock); 8127 free(ctsio->kern_data_ptr, M_CTL); 8128 ctl_set_invalid_field(ctsio, 8129 /*sks_valid*/ 1, 8130 /*command*/ 0, 8131 /*field*/ 8, 8132 /*bit_valid*/ 0, 8133 /*bit*/ 0); 8134 ctl_done((union ctl_io *)ctsio); 8135 return (1); 8136 } 8137 8138 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8139 if (lun->pr_keys[i] != sa_res_key) 8140 continue; 8141 8142 found = 1; 8143 lun->pr_keys[i] = 0; 8144 lun->pr_key_count--; 8145 8146 if (!persis_offset && i < CTL_MAX_INITIATORS) 8147 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8148 else if (persis_offset && i >= persis_offset) 8149 lun->pending_ua[i-persis_offset] |= 8150 CTL_UA_REG_PREEMPT; 8151 } 8152 if (!found) { 8153 mtx_unlock(&lun->lun_lock); 8154 free(ctsio->kern_data_ptr, M_CTL); 8155 ctl_set_reservation_conflict(ctsio); 8156 ctl_done((union ctl_io *)ctsio); 8157 return (CTL_RETVAL_COMPLETE); 8158 } 8159 /* send msg to other side */ 8160 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8161 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8162 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8163 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8164 persis_io.pr.pr_info.res_type = type; 8165 memcpy(persis_io.pr.pr_info.sa_res_key, 8166 param->serv_act_res_key, 8167 sizeof(param->serv_act_res_key)); 8168 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8169 &persis_io, sizeof(persis_io), 0)) > 8170 CTL_HA_STATUS_SUCCESS) { 8171 printf("CTL:Persis Out error returned from " 8172 "ctl_ha_msg_send %d\n", isc_retval); 8173 } 8174 } else { 8175 /* Reserved but not all registrants */ 8176 /* sa_res_key is res holder */ 8177 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8178 /* validate scope and type */ 8179 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8180 SPR_LU_SCOPE) { 8181 mtx_unlock(&lun->lun_lock); 8182 ctl_set_invalid_field(/*ctsio*/ ctsio, 8183 /*sks_valid*/ 1, 8184 /*command*/ 1, 8185 /*field*/ 2, 8186 /*bit_valid*/ 1, 8187 /*bit*/ 4); 8188 ctl_done((union ctl_io *)ctsio); 8189 return (1); 8190 } 8191 8192 if (type>8 || type==2 || type==4 || type==0) { 8193 mtx_unlock(&lun->lun_lock); 8194 ctl_set_invalid_field(/*ctsio*/ ctsio, 8195 /*sks_valid*/ 1, 8196 /*command*/ 1, 8197 /*field*/ 2, 8198 /*bit_valid*/ 1, 8199 /*bit*/ 0); 8200 ctl_done((union ctl_io *)ctsio); 8201 return (1); 8202 } 8203 8204 /* 8205 * Do the following: 8206 * if sa_res_key != res_key remove all 8207 * registrants w/sa_res_key and generate UA 8208 * for these registrants(Registrations 8209 * Preempted) if it wasn't an exclusive 8210 * reservation generate UA(Reservations 8211 * Preempted) for all other registered nexuses 8212 * if the type has changed. Establish the new 8213 * reservation and holder. If res_key and 8214 * sa_res_key are the same do the above 8215 * except don't unregister the res holder. 8216 */ 8217 8218 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8219 if (i == residx || lun->pr_keys[i] == 0) 8220 continue; 8221 8222 if (sa_res_key == lun->pr_keys[i]) { 8223 lun->pr_keys[i] = 0; 8224 lun->pr_key_count--; 8225 8226 if (!persis_offset 8227 && i < CTL_MAX_INITIATORS) 8228 lun->pending_ua[i] |= 8229 CTL_UA_REG_PREEMPT; 8230 else if (persis_offset 8231 && i >= persis_offset) 8232 lun->pending_ua[i-persis_offset] |= 8233 CTL_UA_REG_PREEMPT; 8234 } else if (type != lun->res_type 8235 && (lun->res_type == SPR_TYPE_WR_EX_RO 8236 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8237 if (!persis_offset 8238 && i < CTL_MAX_INITIATORS) 8239 lun->pending_ua[i] |= 8240 CTL_UA_RES_RELEASE; 8241 else if (persis_offset 8242 && i >= persis_offset) 8243 lun->pending_ua[ 8244 i-persis_offset] |= 8245 CTL_UA_RES_RELEASE; 8246 } 8247 } 8248 lun->res_type = type; 8249 if (lun->res_type != SPR_TYPE_WR_EX_AR 8250 && lun->res_type != SPR_TYPE_EX_AC_AR) 8251 lun->pr_res_idx = residx; 8252 else 8253 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8254 8255 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8256 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8257 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8258 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8259 persis_io.pr.pr_info.res_type = type; 8260 memcpy(persis_io.pr.pr_info.sa_res_key, 8261 param->serv_act_res_key, 8262 sizeof(param->serv_act_res_key)); 8263 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8264 &persis_io, sizeof(persis_io), 0)) > 8265 CTL_HA_STATUS_SUCCESS) { 8266 printf("CTL:Persis Out error returned " 8267 "from ctl_ha_msg_send %d\n", 8268 isc_retval); 8269 } 8270 } else { 8271 /* 8272 * sa_res_key is not the res holder just 8273 * remove registrants 8274 */ 8275 int found=0; 8276 8277 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8278 if (sa_res_key != lun->pr_keys[i]) 8279 continue; 8280 8281 found = 1; 8282 lun->pr_keys[i] = 0; 8283 lun->pr_key_count--; 8284 8285 if (!persis_offset 8286 && i < CTL_MAX_INITIATORS) 8287 lun->pending_ua[i] |= 8288 CTL_UA_REG_PREEMPT; 8289 else if (persis_offset 8290 && i >= persis_offset) 8291 lun->pending_ua[i-persis_offset] |= 8292 CTL_UA_REG_PREEMPT; 8293 } 8294 8295 if (!found) { 8296 mtx_unlock(&lun->lun_lock); 8297 free(ctsio->kern_data_ptr, M_CTL); 8298 ctl_set_reservation_conflict(ctsio); 8299 ctl_done((union ctl_io *)ctsio); 8300 return (1); 8301 } 8302 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8303 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8304 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8305 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8306 persis_io.pr.pr_info.res_type = type; 8307 memcpy(persis_io.pr.pr_info.sa_res_key, 8308 param->serv_act_res_key, 8309 sizeof(param->serv_act_res_key)); 8310 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8311 &persis_io, sizeof(persis_io), 0)) > 8312 CTL_HA_STATUS_SUCCESS) { 8313 printf("CTL:Persis Out error returned " 8314 "from ctl_ha_msg_send %d\n", 8315 isc_retval); 8316 } 8317 } 8318 } 8319 8320 lun->PRGeneration++; 8321 mtx_unlock(&lun->lun_lock); 8322 8323 return (retval); 8324} 8325 8326static void 8327ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8328{ 8329 uint64_t sa_res_key; 8330 int i; 8331 8332 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8333 8334 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8335 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8336 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8337 if (sa_res_key == 0) { 8338 /* 8339 * Unregister everybody else and build UA for 8340 * them 8341 */ 8342 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8343 if (i == msg->pr.pr_info.residx || 8344 lun->pr_keys[i] == 0) 8345 continue; 8346 8347 if (!persis_offset 8348 && i < CTL_MAX_INITIATORS) 8349 lun->pending_ua[i] |= 8350 CTL_UA_REG_PREEMPT; 8351 else if (persis_offset && i >= persis_offset) 8352 lun->pending_ua[i - persis_offset] |= 8353 CTL_UA_REG_PREEMPT; 8354 lun->pr_keys[i] = 0; 8355 } 8356 8357 lun->pr_key_count = 1; 8358 lun->res_type = msg->pr.pr_info.res_type; 8359 if (lun->res_type != SPR_TYPE_WR_EX_AR 8360 && lun->res_type != SPR_TYPE_EX_AC_AR) 8361 lun->pr_res_idx = msg->pr.pr_info.residx; 8362 } else { 8363 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8364 if (sa_res_key == lun->pr_keys[i]) 8365 continue; 8366 8367 lun->pr_keys[i] = 0; 8368 lun->pr_key_count--; 8369 8370 if (!persis_offset 8371 && i < persis_offset) 8372 lun->pending_ua[i] |= 8373 CTL_UA_REG_PREEMPT; 8374 else if (persis_offset 8375 && i >= persis_offset) 8376 lun->pending_ua[i - persis_offset] |= 8377 CTL_UA_REG_PREEMPT; 8378 } 8379 } 8380 } else { 8381 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8382 if (i == msg->pr.pr_info.residx || 8383 lun->pr_keys[i] == 0) 8384 continue; 8385 8386 if (sa_res_key == lun->pr_keys[i]) { 8387 lun->pr_keys[i] = 0; 8388 lun->pr_key_count--; 8389 if (!persis_offset 8390 && i < CTL_MAX_INITIATORS) 8391 lun->pending_ua[i] |= 8392 CTL_UA_REG_PREEMPT; 8393 else if (persis_offset 8394 && i >= persis_offset) 8395 lun->pending_ua[i - persis_offset] |= 8396 CTL_UA_REG_PREEMPT; 8397 } else if (msg->pr.pr_info.res_type != lun->res_type 8398 && (lun->res_type == SPR_TYPE_WR_EX_RO 8399 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8400 if (!persis_offset 8401 && i < persis_offset) 8402 lun->pending_ua[i] |= 8403 CTL_UA_RES_RELEASE; 8404 else if (persis_offset 8405 && i >= persis_offset) 8406 lun->pending_ua[i - persis_offset] |= 8407 CTL_UA_RES_RELEASE; 8408 } 8409 } 8410 lun->res_type = msg->pr.pr_info.res_type; 8411 if (lun->res_type != SPR_TYPE_WR_EX_AR 8412 && lun->res_type != SPR_TYPE_EX_AC_AR) 8413 lun->pr_res_idx = msg->pr.pr_info.residx; 8414 else 8415 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8416 } 8417 lun->PRGeneration++; 8418 8419} 8420 8421 8422int 8423ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8424{ 8425 int retval; 8426 int isc_retval; 8427 u_int32_t param_len; 8428 struct scsi_per_res_out *cdb; 8429 struct ctl_lun *lun; 8430 struct scsi_per_res_out_parms* param; 8431 struct ctl_softc *softc; 8432 uint32_t residx; 8433 uint64_t res_key, sa_res_key; 8434 uint8_t type; 8435 union ctl_ha_msg persis_io; 8436 int i; 8437 8438 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8439 8440 retval = CTL_RETVAL_COMPLETE; 8441 8442 softc = control_softc; 8443 8444 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8445 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8446 8447 /* 8448 * We only support whole-LUN scope. The scope & type are ignored for 8449 * register, register and ignore existing key and clear. 8450 * We sometimes ignore scope and type on preempts too!! 8451 * Verify reservation type here as well. 8452 */ 8453 type = cdb->scope_type & SPR_TYPE_MASK; 8454 if ((cdb->action == SPRO_RESERVE) 8455 || (cdb->action == SPRO_RELEASE)) { 8456 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8457 ctl_set_invalid_field(/*ctsio*/ ctsio, 8458 /*sks_valid*/ 1, 8459 /*command*/ 1, 8460 /*field*/ 2, 8461 /*bit_valid*/ 1, 8462 /*bit*/ 4); 8463 ctl_done((union ctl_io *)ctsio); 8464 return (CTL_RETVAL_COMPLETE); 8465 } 8466 8467 if (type>8 || type==2 || type==4 || type==0) { 8468 ctl_set_invalid_field(/*ctsio*/ ctsio, 8469 /*sks_valid*/ 1, 8470 /*command*/ 1, 8471 /*field*/ 2, 8472 /*bit_valid*/ 1, 8473 /*bit*/ 0); 8474 ctl_done((union ctl_io *)ctsio); 8475 return (CTL_RETVAL_COMPLETE); 8476 } 8477 } 8478 8479 param_len = scsi_4btoul(cdb->length); 8480 8481 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8482 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8483 ctsio->kern_data_len = param_len; 8484 ctsio->kern_total_len = param_len; 8485 ctsio->kern_data_resid = 0; 8486 ctsio->kern_rel_offset = 0; 8487 ctsio->kern_sg_entries = 0; 8488 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8489 ctsio->be_move_done = ctl_config_move_done; 8490 ctl_datamove((union ctl_io *)ctsio); 8491 8492 return (CTL_RETVAL_COMPLETE); 8493 } 8494 8495 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8496 8497 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8498 res_key = scsi_8btou64(param->res_key.key); 8499 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8500 8501 /* 8502 * Validate the reservation key here except for SPRO_REG_IGNO 8503 * This must be done for all other service actions 8504 */ 8505 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8506 mtx_lock(&lun->lun_lock); 8507 if (lun->pr_keys[residx] != 0) { 8508 if (res_key != lun->pr_keys[residx]) { 8509 /* 8510 * The current key passed in doesn't match 8511 * the one the initiator previously 8512 * registered. 8513 */ 8514 mtx_unlock(&lun->lun_lock); 8515 free(ctsio->kern_data_ptr, M_CTL); 8516 ctl_set_reservation_conflict(ctsio); 8517 ctl_done((union ctl_io *)ctsio); 8518 return (CTL_RETVAL_COMPLETE); 8519 } 8520 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8521 /* 8522 * We are not registered 8523 */ 8524 mtx_unlock(&lun->lun_lock); 8525 free(ctsio->kern_data_ptr, M_CTL); 8526 ctl_set_reservation_conflict(ctsio); 8527 ctl_done((union ctl_io *)ctsio); 8528 return (CTL_RETVAL_COMPLETE); 8529 } else if (res_key != 0) { 8530 /* 8531 * We are not registered and trying to register but 8532 * the register key isn't zero. 8533 */ 8534 mtx_unlock(&lun->lun_lock); 8535 free(ctsio->kern_data_ptr, M_CTL); 8536 ctl_set_reservation_conflict(ctsio); 8537 ctl_done((union ctl_io *)ctsio); 8538 return (CTL_RETVAL_COMPLETE); 8539 } 8540 mtx_unlock(&lun->lun_lock); 8541 } 8542 8543 switch (cdb->action & SPRO_ACTION_MASK) { 8544 case SPRO_REGISTER: 8545 case SPRO_REG_IGNO: { 8546 8547#if 0 8548 printf("Registration received\n"); 8549#endif 8550 8551 /* 8552 * We don't support any of these options, as we report in 8553 * the read capabilities request (see 8554 * ctl_persistent_reserve_in(), above). 8555 */ 8556 if ((param->flags & SPR_SPEC_I_PT) 8557 || (param->flags & SPR_ALL_TG_PT) 8558 || (param->flags & SPR_APTPL)) { 8559 int bit_ptr; 8560 8561 if (param->flags & SPR_APTPL) 8562 bit_ptr = 0; 8563 else if (param->flags & SPR_ALL_TG_PT) 8564 bit_ptr = 2; 8565 else /* SPR_SPEC_I_PT */ 8566 bit_ptr = 3; 8567 8568 free(ctsio->kern_data_ptr, M_CTL); 8569 ctl_set_invalid_field(ctsio, 8570 /*sks_valid*/ 1, 8571 /*command*/ 0, 8572 /*field*/ 20, 8573 /*bit_valid*/ 1, 8574 /*bit*/ bit_ptr); 8575 ctl_done((union ctl_io *)ctsio); 8576 return (CTL_RETVAL_COMPLETE); 8577 } 8578 8579 mtx_lock(&lun->lun_lock); 8580 8581 /* 8582 * The initiator wants to clear the 8583 * key/unregister. 8584 */ 8585 if (sa_res_key == 0) { 8586 if ((res_key == 0 8587 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8588 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8589 && lun->pr_keys[residx] == 0)) { 8590 mtx_unlock(&lun->lun_lock); 8591 goto done; 8592 } 8593 8594 lun->pr_keys[residx] = 0; 8595 lun->pr_key_count--; 8596 8597 if (residx == lun->pr_res_idx) { 8598 lun->flags &= ~CTL_LUN_PR_RESERVED; 8599 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8600 8601 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8602 || lun->res_type == SPR_TYPE_EX_AC_RO) 8603 && lun->pr_key_count) { 8604 /* 8605 * If the reservation is a registrants 8606 * only type we need to generate a UA 8607 * for other registered inits. The 8608 * sense code should be RESERVATIONS 8609 * RELEASED 8610 */ 8611 8612 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8613 if (lun->pr_keys[ 8614 i + persis_offset] == 0) 8615 continue; 8616 lun->pending_ua[i] |= 8617 CTL_UA_RES_RELEASE; 8618 } 8619 } 8620 lun->res_type = 0; 8621 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8622 if (lun->pr_key_count==0) { 8623 lun->flags &= ~CTL_LUN_PR_RESERVED; 8624 lun->res_type = 0; 8625 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8626 } 8627 } 8628 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8629 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8630 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8631 persis_io.pr.pr_info.residx = residx; 8632 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8633 &persis_io, sizeof(persis_io), 0 )) > 8634 CTL_HA_STATUS_SUCCESS) { 8635 printf("CTL:Persis Out error returned from " 8636 "ctl_ha_msg_send %d\n", isc_retval); 8637 } 8638 } else /* sa_res_key != 0 */ { 8639 8640 /* 8641 * If we aren't registered currently then increment 8642 * the key count and set the registered flag. 8643 */ 8644 if (lun->pr_keys[residx] == 0) 8645 lun->pr_key_count++; 8646 lun->pr_keys[residx] = sa_res_key; 8647 8648 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8649 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8650 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8651 persis_io.pr.pr_info.residx = residx; 8652 memcpy(persis_io.pr.pr_info.sa_res_key, 8653 param->serv_act_res_key, 8654 sizeof(param->serv_act_res_key)); 8655 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8656 &persis_io, sizeof(persis_io), 0)) > 8657 CTL_HA_STATUS_SUCCESS) { 8658 printf("CTL:Persis Out error returned from " 8659 "ctl_ha_msg_send %d\n", isc_retval); 8660 } 8661 } 8662 lun->PRGeneration++; 8663 mtx_unlock(&lun->lun_lock); 8664 8665 break; 8666 } 8667 case SPRO_RESERVE: 8668#if 0 8669 printf("Reserve executed type %d\n", type); 8670#endif 8671 mtx_lock(&lun->lun_lock); 8672 if (lun->flags & CTL_LUN_PR_RESERVED) { 8673 /* 8674 * if this isn't the reservation holder and it's 8675 * not a "all registrants" type or if the type is 8676 * different then we have a conflict 8677 */ 8678 if ((lun->pr_res_idx != residx 8679 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8680 || lun->res_type != type) { 8681 mtx_unlock(&lun->lun_lock); 8682 free(ctsio->kern_data_ptr, M_CTL); 8683 ctl_set_reservation_conflict(ctsio); 8684 ctl_done((union ctl_io *)ctsio); 8685 return (CTL_RETVAL_COMPLETE); 8686 } 8687 mtx_unlock(&lun->lun_lock); 8688 } else /* create a reservation */ { 8689 /* 8690 * If it's not an "all registrants" type record 8691 * reservation holder 8692 */ 8693 if (type != SPR_TYPE_WR_EX_AR 8694 && type != SPR_TYPE_EX_AC_AR) 8695 lun->pr_res_idx = residx; /* Res holder */ 8696 else 8697 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8698 8699 lun->flags |= CTL_LUN_PR_RESERVED; 8700 lun->res_type = type; 8701 8702 mtx_unlock(&lun->lun_lock); 8703 8704 /* send msg to other side */ 8705 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8706 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8707 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8708 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8709 persis_io.pr.pr_info.res_type = type; 8710 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8711 &persis_io, sizeof(persis_io), 0)) > 8712 CTL_HA_STATUS_SUCCESS) { 8713 printf("CTL:Persis Out error returned from " 8714 "ctl_ha_msg_send %d\n", isc_retval); 8715 } 8716 } 8717 break; 8718 8719 case SPRO_RELEASE: 8720 mtx_lock(&lun->lun_lock); 8721 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8722 /* No reservation exists return good status */ 8723 mtx_unlock(&lun->lun_lock); 8724 goto done; 8725 } 8726 /* 8727 * Is this nexus a reservation holder? 8728 */ 8729 if (lun->pr_res_idx != residx 8730 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8731 /* 8732 * not a res holder return good status but 8733 * do nothing 8734 */ 8735 mtx_unlock(&lun->lun_lock); 8736 goto done; 8737 } 8738 8739 if (lun->res_type != type) { 8740 mtx_unlock(&lun->lun_lock); 8741 free(ctsio->kern_data_ptr, M_CTL); 8742 ctl_set_illegal_pr_release(ctsio); 8743 ctl_done((union ctl_io *)ctsio); 8744 return (CTL_RETVAL_COMPLETE); 8745 } 8746 8747 /* okay to release */ 8748 lun->flags &= ~CTL_LUN_PR_RESERVED; 8749 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8750 lun->res_type = 0; 8751 8752 /* 8753 * if this isn't an exclusive access 8754 * res generate UA for all other 8755 * registrants. 8756 */ 8757 if (type != SPR_TYPE_EX_AC 8758 && type != SPR_TYPE_WR_EX) { 8759 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8760 if (i == residx || 8761 lun->pr_keys[i + persis_offset] == 0) 8762 continue; 8763 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8764 } 8765 } 8766 mtx_unlock(&lun->lun_lock); 8767 /* Send msg to other side */ 8768 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8769 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8770 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8771 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8772 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8773 printf("CTL:Persis Out error returned from " 8774 "ctl_ha_msg_send %d\n", isc_retval); 8775 } 8776 break; 8777 8778 case SPRO_CLEAR: 8779 /* send msg to other side */ 8780 8781 mtx_lock(&lun->lun_lock); 8782 lun->flags &= ~CTL_LUN_PR_RESERVED; 8783 lun->res_type = 0; 8784 lun->pr_key_count = 0; 8785 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8786 8787 lun->pr_keys[residx] = 0; 8788 8789 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8790 if (lun->pr_keys[i] != 0) { 8791 if (!persis_offset && i < CTL_MAX_INITIATORS) 8792 lun->pending_ua[i] |= 8793 CTL_UA_RES_PREEMPT; 8794 else if (persis_offset && i >= persis_offset) 8795 lun->pending_ua[i-persis_offset] |= 8796 CTL_UA_RES_PREEMPT; 8797 8798 lun->pr_keys[i] = 0; 8799 } 8800 lun->PRGeneration++; 8801 mtx_unlock(&lun->lun_lock); 8802 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8803 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8804 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8805 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8806 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8807 printf("CTL:Persis Out error returned from " 8808 "ctl_ha_msg_send %d\n", isc_retval); 8809 } 8810 break; 8811 8812 case SPRO_PREEMPT: { 8813 int nretval; 8814 8815 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8816 residx, ctsio, cdb, param); 8817 if (nretval != 0) 8818 return (CTL_RETVAL_COMPLETE); 8819 break; 8820 } 8821 default: 8822 panic("Invalid PR type %x", cdb->action); 8823 } 8824 8825done: 8826 free(ctsio->kern_data_ptr, M_CTL); 8827 ctl_set_success(ctsio); 8828 ctl_done((union ctl_io *)ctsio); 8829 8830 return (retval); 8831} 8832 8833/* 8834 * This routine is for handling a message from the other SC pertaining to 8835 * persistent reserve out. All the error checking will have been done 8836 * so only perorming the action need be done here to keep the two 8837 * in sync. 8838 */ 8839static void 8840ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8841{ 8842 struct ctl_lun *lun; 8843 struct ctl_softc *softc; 8844 int i; 8845 uint32_t targ_lun; 8846 8847 softc = control_softc; 8848 8849 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8850 lun = softc->ctl_luns[targ_lun]; 8851 mtx_lock(&lun->lun_lock); 8852 switch(msg->pr.pr_info.action) { 8853 case CTL_PR_REG_KEY: 8854 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8855 lun->pr_key_count++; 8856 lun->pr_keys[msg->pr.pr_info.residx] = 8857 scsi_8btou64(msg->pr.pr_info.sa_res_key); 8858 lun->PRGeneration++; 8859 break; 8860 8861 case CTL_PR_UNREG_KEY: 8862 lun->pr_keys[msg->pr.pr_info.residx] = 0; 8863 lun->pr_key_count--; 8864 8865 /* XXX Need to see if the reservation has been released */ 8866 /* if so do we need to generate UA? */ 8867 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8868 lun->flags &= ~CTL_LUN_PR_RESERVED; 8869 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8870 8871 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8872 || lun->res_type == SPR_TYPE_EX_AC_RO) 8873 && lun->pr_key_count) { 8874 /* 8875 * If the reservation is a registrants 8876 * only type we need to generate a UA 8877 * for other registered inits. The 8878 * sense code should be RESERVATIONS 8879 * RELEASED 8880 */ 8881 8882 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8883 if (lun->pr_keys[i+ 8884 persis_offset] == 0) 8885 continue; 8886 8887 lun->pending_ua[i] |= 8888 CTL_UA_RES_RELEASE; 8889 } 8890 } 8891 lun->res_type = 0; 8892 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8893 if (lun->pr_key_count==0) { 8894 lun->flags &= ~CTL_LUN_PR_RESERVED; 8895 lun->res_type = 0; 8896 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8897 } 8898 } 8899 lun->PRGeneration++; 8900 break; 8901 8902 case CTL_PR_RESERVE: 8903 lun->flags |= CTL_LUN_PR_RESERVED; 8904 lun->res_type = msg->pr.pr_info.res_type; 8905 lun->pr_res_idx = msg->pr.pr_info.residx; 8906 8907 break; 8908 8909 case CTL_PR_RELEASE: 8910 /* 8911 * if this isn't an exclusive access res generate UA for all 8912 * other registrants. 8913 */ 8914 if (lun->res_type != SPR_TYPE_EX_AC 8915 && lun->res_type != SPR_TYPE_WR_EX) { 8916 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8917 if (lun->pr_keys[i+persis_offset] != 0) 8918 lun->pending_ua[i] |= 8919 CTL_UA_RES_RELEASE; 8920 } 8921 8922 lun->flags &= ~CTL_LUN_PR_RESERVED; 8923 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8924 lun->res_type = 0; 8925 break; 8926 8927 case CTL_PR_PREEMPT: 8928 ctl_pro_preempt_other(lun, msg); 8929 break; 8930 case CTL_PR_CLEAR: 8931 lun->flags &= ~CTL_LUN_PR_RESERVED; 8932 lun->res_type = 0; 8933 lun->pr_key_count = 0; 8934 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8935 8936 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8937 if (lun->pr_keys[i] == 0) 8938 continue; 8939 if (!persis_offset 8940 && i < CTL_MAX_INITIATORS) 8941 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8942 else if (persis_offset 8943 && i >= persis_offset) 8944 lun->pending_ua[i-persis_offset] |= 8945 CTL_UA_RES_PREEMPT; 8946 lun->pr_keys[i] = 0; 8947 } 8948 lun->PRGeneration++; 8949 break; 8950 } 8951 8952 mtx_unlock(&lun->lun_lock); 8953} 8954 8955int 8956ctl_read_write(struct ctl_scsiio *ctsio) 8957{ 8958 struct ctl_lun *lun; 8959 struct ctl_lba_len_flags *lbalen; 8960 uint64_t lba; 8961 uint32_t num_blocks; 8962 int flags, retval; 8963 int isread; 8964 8965 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8966 8967 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8968 8969 flags = 0; 8970 retval = CTL_RETVAL_COMPLETE; 8971 8972 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8973 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8974 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8975 uint32_t residx; 8976 8977 /* 8978 * XXX KDM need a lock here. 8979 */ 8980 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8981 if ((lun->res_type == SPR_TYPE_EX_AC 8982 && residx != lun->pr_res_idx) 8983 || ((lun->res_type == SPR_TYPE_EX_AC_RO 8984 || lun->res_type == SPR_TYPE_EX_AC_AR) 8985 && lun->pr_keys[residx] == 0)) { 8986 ctl_set_reservation_conflict(ctsio); 8987 ctl_done((union ctl_io *)ctsio); 8988 return (CTL_RETVAL_COMPLETE); 8989 } 8990 } 8991 8992 switch (ctsio->cdb[0]) { 8993 case READ_6: 8994 case WRITE_6: { 8995 struct scsi_rw_6 *cdb; 8996 8997 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8998 8999 lba = scsi_3btoul(cdb->addr); 9000 /* only 5 bits are valid in the most significant address byte */ 9001 lba &= 0x1fffff; 9002 num_blocks = cdb->length; 9003 /* 9004 * This is correct according to SBC-2. 9005 */ 9006 if (num_blocks == 0) 9007 num_blocks = 256; 9008 break; 9009 } 9010 case READ_10: 9011 case WRITE_10: { 9012 struct scsi_rw_10 *cdb; 9013 9014 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9015 if (cdb->byte2 & SRW10_FUA) 9016 flags |= CTL_LLF_FUA; 9017 if (cdb->byte2 & SRW10_DPO) 9018 flags |= CTL_LLF_DPO; 9019 lba = scsi_4btoul(cdb->addr); 9020 num_blocks = scsi_2btoul(cdb->length); 9021 break; 9022 } 9023 case WRITE_VERIFY_10: { 9024 struct scsi_write_verify_10 *cdb; 9025 9026 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9027 flags |= CTL_LLF_FUA; 9028 if (cdb->byte2 & SWV_DPO) 9029 flags |= CTL_LLF_DPO; 9030 lba = scsi_4btoul(cdb->addr); 9031 num_blocks = scsi_2btoul(cdb->length); 9032 break; 9033 } 9034 case READ_12: 9035 case WRITE_12: { 9036 struct scsi_rw_12 *cdb; 9037 9038 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9039 if (cdb->byte2 & SRW12_FUA) 9040 flags |= CTL_LLF_FUA; 9041 if (cdb->byte2 & SRW12_DPO) 9042 flags |= CTL_LLF_DPO; 9043 lba = scsi_4btoul(cdb->addr); 9044 num_blocks = scsi_4btoul(cdb->length); 9045 break; 9046 } 9047 case WRITE_VERIFY_12: { 9048 struct scsi_write_verify_12 *cdb; 9049 9050 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9051 flags |= CTL_LLF_FUA; 9052 if (cdb->byte2 & SWV_DPO) 9053 flags |= CTL_LLF_DPO; 9054 lba = scsi_4btoul(cdb->addr); 9055 num_blocks = scsi_4btoul(cdb->length); 9056 break; 9057 } 9058 case READ_16: 9059 case WRITE_16: { 9060 struct scsi_rw_16 *cdb; 9061 9062 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9063 if (cdb->byte2 & SRW12_FUA) 9064 flags |= CTL_LLF_FUA; 9065 if (cdb->byte2 & SRW12_DPO) 9066 flags |= CTL_LLF_DPO; 9067 lba = scsi_8btou64(cdb->addr); 9068 num_blocks = scsi_4btoul(cdb->length); 9069 break; 9070 } 9071 case WRITE_ATOMIC_16: { 9072 struct scsi_rw_16 *cdb; 9073 9074 if (lun->be_lun->atomicblock == 0) { 9075 ctl_set_invalid_opcode(ctsio); 9076 ctl_done((union ctl_io *)ctsio); 9077 return (CTL_RETVAL_COMPLETE); 9078 } 9079 9080 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9081 if (cdb->byte2 & SRW12_FUA) 9082 flags |= CTL_LLF_FUA; 9083 if (cdb->byte2 & SRW12_DPO) 9084 flags |= CTL_LLF_DPO; 9085 lba = scsi_8btou64(cdb->addr); 9086 num_blocks = scsi_4btoul(cdb->length); 9087 if (num_blocks > lun->be_lun->atomicblock) { 9088 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9089 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9090 /*bit*/ 0); 9091 ctl_done((union ctl_io *)ctsio); 9092 return (CTL_RETVAL_COMPLETE); 9093 } 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 flags |= CTL_LLF_FUA; 9101 if (cdb->byte2 & SWV_DPO) 9102 flags |= CTL_LLF_DPO; 9103 lba = scsi_8btou64(cdb->addr); 9104 num_blocks = scsi_4btoul(cdb->length); 9105 break; 9106 } 9107 default: 9108 /* 9109 * We got a command we don't support. This shouldn't 9110 * happen, commands should be filtered out above us. 9111 */ 9112 ctl_set_invalid_opcode(ctsio); 9113 ctl_done((union ctl_io *)ctsio); 9114 9115 return (CTL_RETVAL_COMPLETE); 9116 break; /* NOTREACHED */ 9117 } 9118 9119 /* 9120 * The first check is to make sure we're in bounds, the second 9121 * check is to catch wrap-around problems. If the lba + num blocks 9122 * is less than the lba, then we've wrapped around and the block 9123 * range is invalid anyway. 9124 */ 9125 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9126 || ((lba + num_blocks) < lba)) { 9127 ctl_set_lba_out_of_range(ctsio); 9128 ctl_done((union ctl_io *)ctsio); 9129 return (CTL_RETVAL_COMPLETE); 9130 } 9131 9132 /* 9133 * According to SBC-3, a transfer length of 0 is not an error. 9134 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9135 * translates to 256 blocks for those commands. 9136 */ 9137 if (num_blocks == 0) { 9138 ctl_set_success(ctsio); 9139 ctl_done((union ctl_io *)ctsio); 9140 return (CTL_RETVAL_COMPLETE); 9141 } 9142 9143 /* Set FUA and/or DPO if caches are disabled. */ 9144 if (isread) { 9145 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9146 SCP_RCD) != 0) 9147 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9148 } else { 9149 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9150 SCP_WCE) == 0) 9151 flags |= CTL_LLF_FUA; 9152 } 9153 9154 lbalen = (struct ctl_lba_len_flags *) 9155 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9156 lbalen->lba = lba; 9157 lbalen->len = num_blocks; 9158 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9159 9160 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9161 ctsio->kern_rel_offset = 0; 9162 9163 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9164 9165 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9166 9167 return (retval); 9168} 9169 9170static int 9171ctl_cnw_cont(union ctl_io *io) 9172{ 9173 struct ctl_scsiio *ctsio; 9174 struct ctl_lun *lun; 9175 struct ctl_lba_len_flags *lbalen; 9176 int retval; 9177 9178 ctsio = &io->scsiio; 9179 ctsio->io_hdr.status = CTL_STATUS_NONE; 9180 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9181 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9182 lbalen = (struct ctl_lba_len_flags *) 9183 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9184 lbalen->flags &= ~CTL_LLF_COMPARE; 9185 lbalen->flags |= CTL_LLF_WRITE; 9186 9187 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9188 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9189 return (retval); 9190} 9191 9192int 9193ctl_cnw(struct ctl_scsiio *ctsio) 9194{ 9195 struct ctl_lun *lun; 9196 struct ctl_lba_len_flags *lbalen; 9197 uint64_t lba; 9198 uint32_t num_blocks; 9199 int flags, retval; 9200 9201 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9202 9203 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9204 9205 flags = 0; 9206 retval = CTL_RETVAL_COMPLETE; 9207 9208 switch (ctsio->cdb[0]) { 9209 case COMPARE_AND_WRITE: { 9210 struct scsi_compare_and_write *cdb; 9211 9212 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9213 if (cdb->byte2 & SRW10_FUA) 9214 flags |= CTL_LLF_FUA; 9215 if (cdb->byte2 & SRW10_DPO) 9216 flags |= CTL_LLF_DPO; 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 * The first check is to make sure we're in bounds, the second 9235 * check is to catch wrap-around problems. If the lba + num blocks 9236 * is less than the lba, then we've wrapped around and the block 9237 * range is invalid anyway. 9238 */ 9239 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9240 || ((lba + num_blocks) < lba)) { 9241 ctl_set_lba_out_of_range(ctsio); 9242 ctl_done((union ctl_io *)ctsio); 9243 return (CTL_RETVAL_COMPLETE); 9244 } 9245 9246 /* 9247 * According to SBC-3, a transfer length of 0 is not an error. 9248 */ 9249 if (num_blocks == 0) { 9250 ctl_set_success(ctsio); 9251 ctl_done((union ctl_io *)ctsio); 9252 return (CTL_RETVAL_COMPLETE); 9253 } 9254 9255 /* Set FUA if write cache is disabled. */ 9256 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9257 SCP_WCE) == 0) 9258 flags |= CTL_LLF_FUA; 9259 9260 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9261 ctsio->kern_rel_offset = 0; 9262 9263 /* 9264 * Set the IO_CONT flag, so that if this I/O gets passed to 9265 * ctl_data_submit_done(), it'll get passed back to 9266 * ctl_ctl_cnw_cont() for further processing. 9267 */ 9268 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9269 ctsio->io_cont = ctl_cnw_cont; 9270 9271 lbalen = (struct ctl_lba_len_flags *) 9272 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9273 lbalen->lba = lba; 9274 lbalen->len = num_blocks; 9275 lbalen->flags = CTL_LLF_COMPARE | flags; 9276 9277 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9278 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9279 return (retval); 9280} 9281 9282int 9283ctl_verify(struct ctl_scsiio *ctsio) 9284{ 9285 struct ctl_lun *lun; 9286 struct ctl_lba_len_flags *lbalen; 9287 uint64_t lba; 9288 uint32_t num_blocks; 9289 int bytchk, flags; 9290 int retval; 9291 9292 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9293 9294 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9295 9296 bytchk = 0; 9297 flags = CTL_LLF_FUA; 9298 retval = CTL_RETVAL_COMPLETE; 9299 9300 switch (ctsio->cdb[0]) { 9301 case VERIFY_10: { 9302 struct scsi_verify_10 *cdb; 9303 9304 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9305 if (cdb->byte2 & SVFY_BYTCHK) 9306 bytchk = 1; 9307 if (cdb->byte2 & SVFY_DPO) 9308 flags |= CTL_LLF_DPO; 9309 lba = scsi_4btoul(cdb->addr); 9310 num_blocks = scsi_2btoul(cdb->length); 9311 break; 9312 } 9313 case VERIFY_12: { 9314 struct scsi_verify_12 *cdb; 9315 9316 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9317 if (cdb->byte2 & SVFY_BYTCHK) 9318 bytchk = 1; 9319 if (cdb->byte2 & SVFY_DPO) 9320 flags |= CTL_LLF_DPO; 9321 lba = scsi_4btoul(cdb->addr); 9322 num_blocks = scsi_4btoul(cdb->length); 9323 break; 9324 } 9325 case VERIFY_16: { 9326 struct scsi_rw_16 *cdb; 9327 9328 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9329 if (cdb->byte2 & SVFY_BYTCHK) 9330 bytchk = 1; 9331 if (cdb->byte2 & SVFY_DPO) 9332 flags |= CTL_LLF_DPO; 9333 lba = scsi_8btou64(cdb->addr); 9334 num_blocks = scsi_4btoul(cdb->length); 9335 break; 9336 } 9337 default: 9338 /* 9339 * We got a command we don't support. This shouldn't 9340 * happen, commands should be filtered out above us. 9341 */ 9342 ctl_set_invalid_opcode(ctsio); 9343 ctl_done((union ctl_io *)ctsio); 9344 return (CTL_RETVAL_COMPLETE); 9345 } 9346 9347 /* 9348 * The first check is to make sure we're in bounds, the second 9349 * check is to catch wrap-around problems. If the lba + num blocks 9350 * is less than the lba, then we've wrapped around and the block 9351 * range is invalid anyway. 9352 */ 9353 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9354 || ((lba + num_blocks) < lba)) { 9355 ctl_set_lba_out_of_range(ctsio); 9356 ctl_done((union ctl_io *)ctsio); 9357 return (CTL_RETVAL_COMPLETE); 9358 } 9359 9360 /* 9361 * According to SBC-3, a transfer length of 0 is not an error. 9362 */ 9363 if (num_blocks == 0) { 9364 ctl_set_success(ctsio); 9365 ctl_done((union ctl_io *)ctsio); 9366 return (CTL_RETVAL_COMPLETE); 9367 } 9368 9369 lbalen = (struct ctl_lba_len_flags *) 9370 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9371 lbalen->lba = lba; 9372 lbalen->len = num_blocks; 9373 if (bytchk) { 9374 lbalen->flags = CTL_LLF_COMPARE | flags; 9375 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9376 } else { 9377 lbalen->flags = CTL_LLF_VERIFY | flags; 9378 ctsio->kern_total_len = 0; 9379 } 9380 ctsio->kern_rel_offset = 0; 9381 9382 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9383 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9384 return (retval); 9385} 9386 9387int 9388ctl_report_luns(struct ctl_scsiio *ctsio) 9389{ 9390 struct scsi_report_luns *cdb; 9391 struct scsi_report_luns_data *lun_data; 9392 struct ctl_lun *lun, *request_lun; 9393 int num_luns, retval; 9394 uint32_t alloc_len, lun_datalen; 9395 int num_filled, well_known; 9396 uint32_t initidx, targ_lun_id, lun_id; 9397 9398 retval = CTL_RETVAL_COMPLETE; 9399 well_known = 0; 9400 9401 cdb = (struct scsi_report_luns *)ctsio->cdb; 9402 9403 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9404 9405 mtx_lock(&control_softc->ctl_lock); 9406 num_luns = control_softc->num_luns; 9407 mtx_unlock(&control_softc->ctl_lock); 9408 9409 switch (cdb->select_report) { 9410 case RPL_REPORT_DEFAULT: 9411 case RPL_REPORT_ALL: 9412 break; 9413 case RPL_REPORT_WELLKNOWN: 9414 well_known = 1; 9415 num_luns = 0; 9416 break; 9417 default: 9418 ctl_set_invalid_field(ctsio, 9419 /*sks_valid*/ 1, 9420 /*command*/ 1, 9421 /*field*/ 2, 9422 /*bit_valid*/ 0, 9423 /*bit*/ 0); 9424 ctl_done((union ctl_io *)ctsio); 9425 return (retval); 9426 break; /* NOTREACHED */ 9427 } 9428 9429 alloc_len = scsi_4btoul(cdb->length); 9430 /* 9431 * The initiator has to allocate at least 16 bytes for this request, 9432 * so he can at least get the header and the first LUN. Otherwise 9433 * we reject the request (per SPC-3 rev 14, section 6.21). 9434 */ 9435 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9436 sizeof(struct scsi_report_luns_lundata))) { 9437 ctl_set_invalid_field(ctsio, 9438 /*sks_valid*/ 1, 9439 /*command*/ 1, 9440 /*field*/ 6, 9441 /*bit_valid*/ 0, 9442 /*bit*/ 0); 9443 ctl_done((union ctl_io *)ctsio); 9444 return (retval); 9445 } 9446 9447 request_lun = (struct ctl_lun *) 9448 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9449 9450 lun_datalen = sizeof(*lun_data) + 9451 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9452 9453 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9454 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9455 ctsio->kern_sg_entries = 0; 9456 9457 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9458 9459 mtx_lock(&control_softc->ctl_lock); 9460 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9461 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9462 if (lun_id >= CTL_MAX_LUNS) 9463 continue; 9464 lun = control_softc->ctl_luns[lun_id]; 9465 if (lun == NULL) 9466 continue; 9467 9468 if (targ_lun_id <= 0xff) { 9469 /* 9470 * Peripheral addressing method, bus number 0. 9471 */ 9472 lun_data->luns[num_filled].lundata[0] = 9473 RPL_LUNDATA_ATYP_PERIPH; 9474 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9475 num_filled++; 9476 } else if (targ_lun_id <= 0x3fff) { 9477 /* 9478 * Flat addressing method. 9479 */ 9480 lun_data->luns[num_filled].lundata[0] = 9481 RPL_LUNDATA_ATYP_FLAT | 9482 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9483#ifdef OLDCTLHEADERS 9484 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9485 (targ_lun_id & SRLD_BUS_LUN_MASK); 9486#endif 9487 lun_data->luns[num_filled].lundata[1] = 9488#ifdef OLDCTLHEADERS 9489 targ_lun_id >> SRLD_BUS_LUN_BITS; 9490#endif 9491 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9492 num_filled++; 9493 } else { 9494 printf("ctl_report_luns: bogus LUN number %jd, " 9495 "skipping\n", (intmax_t)targ_lun_id); 9496 } 9497 /* 9498 * According to SPC-3, rev 14 section 6.21: 9499 * 9500 * "The execution of a REPORT LUNS command to any valid and 9501 * installed logical unit shall clear the REPORTED LUNS DATA 9502 * HAS CHANGED unit attention condition for all logical 9503 * units of that target with respect to the requesting 9504 * initiator. A valid and installed logical unit is one 9505 * having a PERIPHERAL QUALIFIER of 000b in the standard 9506 * INQUIRY data (see 6.4.2)." 9507 * 9508 * If request_lun is NULL, the LUN this report luns command 9509 * was issued to is either disabled or doesn't exist. In that 9510 * case, we shouldn't clear any pending lun change unit 9511 * attention. 9512 */ 9513 if (request_lun != NULL) { 9514 mtx_lock(&lun->lun_lock); 9515 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9516 mtx_unlock(&lun->lun_lock); 9517 } 9518 } 9519 mtx_unlock(&control_softc->ctl_lock); 9520 9521 /* 9522 * It's quite possible that we've returned fewer LUNs than we allocated 9523 * space for. Trim it. 9524 */ 9525 lun_datalen = sizeof(*lun_data) + 9526 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9527 9528 if (lun_datalen < alloc_len) { 9529 ctsio->residual = alloc_len - lun_datalen; 9530 ctsio->kern_data_len = lun_datalen; 9531 ctsio->kern_total_len = lun_datalen; 9532 } else { 9533 ctsio->residual = 0; 9534 ctsio->kern_data_len = alloc_len; 9535 ctsio->kern_total_len = alloc_len; 9536 } 9537 ctsio->kern_data_resid = 0; 9538 ctsio->kern_rel_offset = 0; 9539 ctsio->kern_sg_entries = 0; 9540 9541 /* 9542 * We set this to the actual data length, regardless of how much 9543 * space we actually have to return results. If the user looks at 9544 * this value, he'll know whether or not he allocated enough space 9545 * and reissue the command if necessary. We don't support well 9546 * known logical units, so if the user asks for that, return none. 9547 */ 9548 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9549 9550 /* 9551 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9552 * this request. 9553 */ 9554 ctsio->scsi_status = SCSI_STATUS_OK; 9555 9556 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9557 ctsio->be_move_done = ctl_config_move_done; 9558 ctl_datamove((union ctl_io *)ctsio); 9559 9560 return (retval); 9561} 9562 9563int 9564ctl_request_sense(struct ctl_scsiio *ctsio) 9565{ 9566 struct scsi_request_sense *cdb; 9567 struct scsi_sense_data *sense_ptr; 9568 struct ctl_lun *lun; 9569 uint32_t initidx; 9570 int have_error; 9571 scsi_sense_data_type sense_format; 9572 9573 cdb = (struct scsi_request_sense *)ctsio->cdb; 9574 9575 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9576 9577 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9578 9579 /* 9580 * Determine which sense format the user wants. 9581 */ 9582 if (cdb->byte2 & SRS_DESC) 9583 sense_format = SSD_TYPE_DESC; 9584 else 9585 sense_format = SSD_TYPE_FIXED; 9586 9587 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9588 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9589 ctsio->kern_sg_entries = 0; 9590 9591 /* 9592 * struct scsi_sense_data, which is currently set to 256 bytes, is 9593 * larger than the largest allowed value for the length field in the 9594 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9595 */ 9596 ctsio->residual = 0; 9597 ctsio->kern_data_len = cdb->length; 9598 ctsio->kern_total_len = cdb->length; 9599 9600 ctsio->kern_data_resid = 0; 9601 ctsio->kern_rel_offset = 0; 9602 ctsio->kern_sg_entries = 0; 9603 9604 /* 9605 * If we don't have a LUN, we don't have any pending sense. 9606 */ 9607 if (lun == NULL) 9608 goto no_sense; 9609 9610 have_error = 0; 9611 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9612 /* 9613 * Check for pending sense, and then for pending unit attentions. 9614 * Pending sense gets returned first, then pending unit attentions. 9615 */ 9616 mtx_lock(&lun->lun_lock); 9617#ifdef CTL_WITH_CA 9618 if (ctl_is_set(lun->have_ca, initidx)) { 9619 scsi_sense_data_type stored_format; 9620 9621 /* 9622 * Check to see which sense format was used for the stored 9623 * sense data. 9624 */ 9625 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9626 9627 /* 9628 * If the user requested a different sense format than the 9629 * one we stored, then we need to convert it to the other 9630 * format. If we're going from descriptor to fixed format 9631 * sense data, we may lose things in translation, depending 9632 * on what options were used. 9633 * 9634 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9635 * for some reason we'll just copy it out as-is. 9636 */ 9637 if ((stored_format == SSD_TYPE_FIXED) 9638 && (sense_format == SSD_TYPE_DESC)) 9639 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9640 &lun->pending_sense[initidx], 9641 (struct scsi_sense_data_desc *)sense_ptr); 9642 else if ((stored_format == SSD_TYPE_DESC) 9643 && (sense_format == SSD_TYPE_FIXED)) 9644 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9645 &lun->pending_sense[initidx], 9646 (struct scsi_sense_data_fixed *)sense_ptr); 9647 else 9648 memcpy(sense_ptr, &lun->pending_sense[initidx], 9649 ctl_min(sizeof(*sense_ptr), 9650 sizeof(lun->pending_sense[initidx]))); 9651 9652 ctl_clear_mask(lun->have_ca, initidx); 9653 have_error = 1; 9654 } else 9655#endif 9656 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9657 ctl_ua_type ua_type; 9658 9659 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9660 sense_ptr, sense_format); 9661 if (ua_type != CTL_UA_NONE) 9662 have_error = 1; 9663 } 9664 mtx_unlock(&lun->lun_lock); 9665 9666 /* 9667 * We already have a pending error, return it. 9668 */ 9669 if (have_error != 0) { 9670 /* 9671 * We report the SCSI status as OK, since the status of the 9672 * request sense command itself is OK. 9673 */ 9674 ctsio->scsi_status = SCSI_STATUS_OK; 9675 9676 /* 9677 * We report 0 for the sense length, because we aren't doing 9678 * autosense in this case. We're reporting sense as 9679 * parameter data. 9680 */ 9681 ctsio->sense_len = 0; 9682 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9683 ctsio->be_move_done = ctl_config_move_done; 9684 ctl_datamove((union ctl_io *)ctsio); 9685 9686 return (CTL_RETVAL_COMPLETE); 9687 } 9688 9689no_sense: 9690 9691 /* 9692 * No sense information to report, so we report that everything is 9693 * okay. 9694 */ 9695 ctl_set_sense_data(sense_ptr, 9696 lun, 9697 sense_format, 9698 /*current_error*/ 1, 9699 /*sense_key*/ SSD_KEY_NO_SENSE, 9700 /*asc*/ 0x00, 9701 /*ascq*/ 0x00, 9702 SSD_ELEM_NONE); 9703 9704 ctsio->scsi_status = SCSI_STATUS_OK; 9705 9706 /* 9707 * We report 0 for the sense length, because we aren't doing 9708 * autosense in this case. We're reporting sense as parameter data. 9709 */ 9710 ctsio->sense_len = 0; 9711 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9712 ctsio->be_move_done = ctl_config_move_done; 9713 ctl_datamove((union ctl_io *)ctsio); 9714 9715 return (CTL_RETVAL_COMPLETE); 9716} 9717 9718int 9719ctl_tur(struct ctl_scsiio *ctsio) 9720{ 9721 struct ctl_lun *lun; 9722 9723 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9724 9725 CTL_DEBUG_PRINT(("ctl_tur\n")); 9726 9727 if (lun == NULL) 9728 return (EINVAL); 9729 9730 ctsio->scsi_status = SCSI_STATUS_OK; 9731 ctsio->io_hdr.status = CTL_SUCCESS; 9732 9733 ctl_done((union ctl_io *)ctsio); 9734 9735 return (CTL_RETVAL_COMPLETE); 9736} 9737 9738#ifdef notyet 9739static int 9740ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9741{ 9742 9743} 9744#endif 9745 9746static int 9747ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9748{ 9749 struct scsi_vpd_supported_pages *pages; 9750 int sup_page_size; 9751 struct ctl_lun *lun; 9752 9753 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9754 9755 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9756 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9757 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9758 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9759 ctsio->kern_sg_entries = 0; 9760 9761 if (sup_page_size < alloc_len) { 9762 ctsio->residual = alloc_len - sup_page_size; 9763 ctsio->kern_data_len = sup_page_size; 9764 ctsio->kern_total_len = sup_page_size; 9765 } else { 9766 ctsio->residual = 0; 9767 ctsio->kern_data_len = alloc_len; 9768 ctsio->kern_total_len = alloc_len; 9769 } 9770 ctsio->kern_data_resid = 0; 9771 ctsio->kern_rel_offset = 0; 9772 ctsio->kern_sg_entries = 0; 9773 9774 /* 9775 * The control device is always connected. The disk device, on the 9776 * other hand, may not be online all the time. Need to change this 9777 * to figure out whether the disk device is actually online or not. 9778 */ 9779 if (lun != NULL) 9780 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9781 lun->be_lun->lun_type; 9782 else 9783 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9784 9785 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9786 /* Supported VPD pages */ 9787 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9788 /* Serial Number */ 9789 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9790 /* Device Identification */ 9791 pages->page_list[2] = SVPD_DEVICE_ID; 9792 /* Extended INQUIRY Data */ 9793 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9794 /* Mode Page Policy */ 9795 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9796 /* SCSI Ports */ 9797 pages->page_list[5] = SVPD_SCSI_PORTS; 9798 /* Third-party Copy */ 9799 pages->page_list[6] = SVPD_SCSI_TPC; 9800 /* Block limits */ 9801 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9802 /* Block Device Characteristics */ 9803 pages->page_list[8] = SVPD_BDC; 9804 /* Logical Block Provisioning */ 9805 pages->page_list[9] = SVPD_LBP; 9806 9807 ctsio->scsi_status = SCSI_STATUS_OK; 9808 9809 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9810 ctsio->be_move_done = ctl_config_move_done; 9811 ctl_datamove((union ctl_io *)ctsio); 9812 9813 return (CTL_RETVAL_COMPLETE); 9814} 9815 9816static int 9817ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9818{ 9819 struct scsi_vpd_unit_serial_number *sn_ptr; 9820 struct ctl_lun *lun; 9821 9822 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9823 9824 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9825 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9826 ctsio->kern_sg_entries = 0; 9827 9828 if (sizeof(*sn_ptr) < alloc_len) { 9829 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9830 ctsio->kern_data_len = sizeof(*sn_ptr); 9831 ctsio->kern_total_len = sizeof(*sn_ptr); 9832 } else { 9833 ctsio->residual = 0; 9834 ctsio->kern_data_len = alloc_len; 9835 ctsio->kern_total_len = alloc_len; 9836 } 9837 ctsio->kern_data_resid = 0; 9838 ctsio->kern_rel_offset = 0; 9839 ctsio->kern_sg_entries = 0; 9840 9841 /* 9842 * The control device is always connected. The disk device, on the 9843 * other hand, may not be online all the time. Need to change this 9844 * to figure out whether the disk device is actually online or not. 9845 */ 9846 if (lun != NULL) 9847 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9848 lun->be_lun->lun_type; 9849 else 9850 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9851 9852 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9853 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9854 /* 9855 * If we don't have a LUN, we just leave the serial number as 9856 * all spaces. 9857 */ 9858 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9859 if (lun != NULL) { 9860 strncpy((char *)sn_ptr->serial_num, 9861 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9862 } 9863 ctsio->scsi_status = SCSI_STATUS_OK; 9864 9865 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9866 ctsio->be_move_done = ctl_config_move_done; 9867 ctl_datamove((union ctl_io *)ctsio); 9868 9869 return (CTL_RETVAL_COMPLETE); 9870} 9871 9872 9873static int 9874ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9875{ 9876 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9877 struct ctl_lun *lun; 9878 int data_len; 9879 9880 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9881 9882 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9883 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9884 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9885 ctsio->kern_sg_entries = 0; 9886 9887 if (data_len < alloc_len) { 9888 ctsio->residual = alloc_len - data_len; 9889 ctsio->kern_data_len = data_len; 9890 ctsio->kern_total_len = data_len; 9891 } else { 9892 ctsio->residual = 0; 9893 ctsio->kern_data_len = alloc_len; 9894 ctsio->kern_total_len = alloc_len; 9895 } 9896 ctsio->kern_data_resid = 0; 9897 ctsio->kern_rel_offset = 0; 9898 ctsio->kern_sg_entries = 0; 9899 9900 /* 9901 * The control device is always connected. The disk device, on the 9902 * other hand, may not be online all the time. 9903 */ 9904 if (lun != NULL) 9905 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9906 lun->be_lun->lun_type; 9907 else 9908 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9909 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9910 eid_ptr->page_length = data_len - 4; 9911 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9912 eid_ptr->flags3 = SVPD_EID_V_SUP; 9913 9914 ctsio->scsi_status = SCSI_STATUS_OK; 9915 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9916 ctsio->be_move_done = ctl_config_move_done; 9917 ctl_datamove((union ctl_io *)ctsio); 9918 9919 return (CTL_RETVAL_COMPLETE); 9920} 9921 9922static int 9923ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9924{ 9925 struct scsi_vpd_mode_page_policy *mpp_ptr; 9926 struct ctl_lun *lun; 9927 int data_len; 9928 9929 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9930 9931 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9932 sizeof(struct scsi_vpd_mode_page_policy_descr); 9933 9934 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9935 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9936 ctsio->kern_sg_entries = 0; 9937 9938 if (data_len < alloc_len) { 9939 ctsio->residual = alloc_len - data_len; 9940 ctsio->kern_data_len = data_len; 9941 ctsio->kern_total_len = data_len; 9942 } else { 9943 ctsio->residual = 0; 9944 ctsio->kern_data_len = alloc_len; 9945 ctsio->kern_total_len = alloc_len; 9946 } 9947 ctsio->kern_data_resid = 0; 9948 ctsio->kern_rel_offset = 0; 9949 ctsio->kern_sg_entries = 0; 9950 9951 /* 9952 * The control device is always connected. The disk device, on the 9953 * other hand, may not be online all the time. 9954 */ 9955 if (lun != NULL) 9956 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9957 lun->be_lun->lun_type; 9958 else 9959 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9960 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9961 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9962 mpp_ptr->descr[0].page_code = 0x3f; 9963 mpp_ptr->descr[0].subpage_code = 0xff; 9964 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9965 9966 ctsio->scsi_status = SCSI_STATUS_OK; 9967 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9968 ctsio->be_move_done = ctl_config_move_done; 9969 ctl_datamove((union ctl_io *)ctsio); 9970 9971 return (CTL_RETVAL_COMPLETE); 9972} 9973 9974static int 9975ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9976{ 9977 struct scsi_vpd_device_id *devid_ptr; 9978 struct scsi_vpd_id_descriptor *desc; 9979 struct ctl_softc *ctl_softc; 9980 struct ctl_lun *lun; 9981 struct ctl_port *port; 9982 int data_len; 9983 uint8_t proto; 9984 9985 ctl_softc = control_softc; 9986 9987 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9988 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9989 9990 data_len = sizeof(struct scsi_vpd_device_id) + 9991 sizeof(struct scsi_vpd_id_descriptor) + 9992 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9993 sizeof(struct scsi_vpd_id_descriptor) + 9994 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9995 if (lun && lun->lun_devid) 9996 data_len += lun->lun_devid->len; 9997 if (port->port_devid) 9998 data_len += port->port_devid->len; 9999 if (port->target_devid) 10000 data_len += port->target_devid->len; 10001 10002 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10003 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10004 ctsio->kern_sg_entries = 0; 10005 10006 if (data_len < alloc_len) { 10007 ctsio->residual = alloc_len - data_len; 10008 ctsio->kern_data_len = data_len; 10009 ctsio->kern_total_len = data_len; 10010 } else { 10011 ctsio->residual = 0; 10012 ctsio->kern_data_len = alloc_len; 10013 ctsio->kern_total_len = alloc_len; 10014 } 10015 ctsio->kern_data_resid = 0; 10016 ctsio->kern_rel_offset = 0; 10017 ctsio->kern_sg_entries = 0; 10018 10019 /* 10020 * The control device is always connected. The disk device, on the 10021 * other hand, may not be online all the time. 10022 */ 10023 if (lun != NULL) 10024 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10025 lun->be_lun->lun_type; 10026 else 10027 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10028 devid_ptr->page_code = SVPD_DEVICE_ID; 10029 scsi_ulto2b(data_len - 4, devid_ptr->length); 10030 10031 if (port->port_type == CTL_PORT_FC) 10032 proto = SCSI_PROTO_FC << 4; 10033 else if (port->port_type == CTL_PORT_ISCSI) 10034 proto = SCSI_PROTO_ISCSI << 4; 10035 else 10036 proto = SCSI_PROTO_SPI << 4; 10037 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10038 10039 /* 10040 * We're using a LUN association here. i.e., this device ID is a 10041 * per-LUN identifier. 10042 */ 10043 if (lun && lun->lun_devid) { 10044 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10045 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10046 lun->lun_devid->len); 10047 } 10048 10049 /* 10050 * This is for the WWPN which is a port association. 10051 */ 10052 if (port->port_devid) { 10053 memcpy(desc, port->port_devid->data, port->port_devid->len); 10054 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10055 port->port_devid->len); 10056 } 10057 10058 /* 10059 * This is for the Relative Target Port(type 4h) identifier 10060 */ 10061 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10062 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10063 SVPD_ID_TYPE_RELTARG; 10064 desc->length = 4; 10065 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10066 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10067 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10068 10069 /* 10070 * This is for the Target Port Group(type 5h) identifier 10071 */ 10072 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10073 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10074 SVPD_ID_TYPE_TPORTGRP; 10075 desc->length = 4; 10076 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10077 &desc->identifier[2]); 10078 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10079 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10080 10081 /* 10082 * This is for the Target identifier 10083 */ 10084 if (port->target_devid) { 10085 memcpy(desc, port->target_devid->data, port->target_devid->len); 10086 } 10087 10088 ctsio->scsi_status = SCSI_STATUS_OK; 10089 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10090 ctsio->be_move_done = ctl_config_move_done; 10091 ctl_datamove((union ctl_io *)ctsio); 10092 10093 return (CTL_RETVAL_COMPLETE); 10094} 10095 10096static int 10097ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10098{ 10099 struct ctl_softc *softc = control_softc; 10100 struct scsi_vpd_scsi_ports *sp; 10101 struct scsi_vpd_port_designation *pd; 10102 struct scsi_vpd_port_designation_cont *pdc; 10103 struct ctl_lun *lun; 10104 struct ctl_port *port; 10105 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10106 int num_target_port_groups, single; 10107 10108 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10109 10110 single = ctl_is_single; 10111 if (single) 10112 num_target_port_groups = 1; 10113 else 10114 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10115 num_target_ports = 0; 10116 iid_len = 0; 10117 id_len = 0; 10118 mtx_lock(&softc->ctl_lock); 10119 STAILQ_FOREACH(port, &softc->port_list, links) { 10120 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10121 continue; 10122 if (lun != NULL && 10123 ctl_map_lun_back(port->targ_port, lun->lun) >= 10124 CTL_MAX_LUNS) 10125 continue; 10126 num_target_ports++; 10127 if (port->init_devid) 10128 iid_len += port->init_devid->len; 10129 if (port->port_devid) 10130 id_len += port->port_devid->len; 10131 } 10132 mtx_unlock(&softc->ctl_lock); 10133 10134 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10135 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10136 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10137 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10138 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10139 ctsio->kern_sg_entries = 0; 10140 10141 if (data_len < alloc_len) { 10142 ctsio->residual = alloc_len - data_len; 10143 ctsio->kern_data_len = data_len; 10144 ctsio->kern_total_len = data_len; 10145 } else { 10146 ctsio->residual = 0; 10147 ctsio->kern_data_len = alloc_len; 10148 ctsio->kern_total_len = alloc_len; 10149 } 10150 ctsio->kern_data_resid = 0; 10151 ctsio->kern_rel_offset = 0; 10152 ctsio->kern_sg_entries = 0; 10153 10154 /* 10155 * The control device is always connected. The disk device, on the 10156 * other hand, may not be online all the time. Need to change this 10157 * to figure out whether the disk device is actually online or not. 10158 */ 10159 if (lun != NULL) 10160 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10161 lun->be_lun->lun_type; 10162 else 10163 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10164 10165 sp->page_code = SVPD_SCSI_PORTS; 10166 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10167 sp->page_length); 10168 pd = &sp->design[0]; 10169 10170 mtx_lock(&softc->ctl_lock); 10171 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10172 pg = 0; 10173 else 10174 pg = 1; 10175 for (g = 0; g < num_target_port_groups; g++) { 10176 STAILQ_FOREACH(port, &softc->port_list, links) { 10177 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10178 continue; 10179 if (lun != NULL && 10180 ctl_map_lun_back(port->targ_port, lun->lun) >= 10181 CTL_MAX_LUNS) 10182 continue; 10183 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10184 scsi_ulto2b(p, pd->relative_port_id); 10185 if (port->init_devid && g == pg) { 10186 iid_len = port->init_devid->len; 10187 memcpy(pd->initiator_transportid, 10188 port->init_devid->data, port->init_devid->len); 10189 } else 10190 iid_len = 0; 10191 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10192 pdc = (struct scsi_vpd_port_designation_cont *) 10193 (&pd->initiator_transportid[iid_len]); 10194 if (port->port_devid && g == pg) { 10195 id_len = port->port_devid->len; 10196 memcpy(pdc->target_port_descriptors, 10197 port->port_devid->data, port->port_devid->len); 10198 } else 10199 id_len = 0; 10200 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10201 pd = (struct scsi_vpd_port_designation *) 10202 ((uint8_t *)pdc->target_port_descriptors + id_len); 10203 } 10204 } 10205 mtx_unlock(&softc->ctl_lock); 10206 10207 ctsio->scsi_status = SCSI_STATUS_OK; 10208 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10209 ctsio->be_move_done = ctl_config_move_done; 10210 ctl_datamove((union ctl_io *)ctsio); 10211 10212 return (CTL_RETVAL_COMPLETE); 10213} 10214 10215static int 10216ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10217{ 10218 struct scsi_vpd_block_limits *bl_ptr; 10219 struct ctl_lun *lun; 10220 int bs; 10221 10222 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10223 10224 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10225 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10226 ctsio->kern_sg_entries = 0; 10227 10228 if (sizeof(*bl_ptr) < alloc_len) { 10229 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10230 ctsio->kern_data_len = sizeof(*bl_ptr); 10231 ctsio->kern_total_len = sizeof(*bl_ptr); 10232 } else { 10233 ctsio->residual = 0; 10234 ctsio->kern_data_len = alloc_len; 10235 ctsio->kern_total_len = alloc_len; 10236 } 10237 ctsio->kern_data_resid = 0; 10238 ctsio->kern_rel_offset = 0; 10239 ctsio->kern_sg_entries = 0; 10240 10241 /* 10242 * The control device is always connected. The disk device, on the 10243 * other hand, may not be online all the time. Need to change this 10244 * to figure out whether the disk device is actually online or not. 10245 */ 10246 if (lun != NULL) 10247 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10248 lun->be_lun->lun_type; 10249 else 10250 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10251 10252 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10253 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10254 bl_ptr->max_cmp_write_len = 0xff; 10255 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10256 if (lun != NULL) { 10257 bs = lun->be_lun->blocksize; 10258 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10259 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10260 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10261 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10262 if (lun->be_lun->pblockexp != 0) { 10263 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10264 bl_ptr->opt_unmap_grain); 10265 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10266 bl_ptr->unmap_grain_align); 10267 } 10268 } 10269 scsi_ulto4b(lun->be_lun->atomicblock, 10270 bl_ptr->max_atomic_transfer_length); 10271 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10272 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10273 } 10274 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10275 10276 ctsio->scsi_status = SCSI_STATUS_OK; 10277 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10278 ctsio->be_move_done = ctl_config_move_done; 10279 ctl_datamove((union ctl_io *)ctsio); 10280 10281 return (CTL_RETVAL_COMPLETE); 10282} 10283 10284static int 10285ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10286{ 10287 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10288 struct ctl_lun *lun; 10289 10290 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10291 10292 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10293 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10294 ctsio->kern_sg_entries = 0; 10295 10296 if (sizeof(*bdc_ptr) < alloc_len) { 10297 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10298 ctsio->kern_data_len = sizeof(*bdc_ptr); 10299 ctsio->kern_total_len = sizeof(*bdc_ptr); 10300 } else { 10301 ctsio->residual = 0; 10302 ctsio->kern_data_len = alloc_len; 10303 ctsio->kern_total_len = alloc_len; 10304 } 10305 ctsio->kern_data_resid = 0; 10306 ctsio->kern_rel_offset = 0; 10307 ctsio->kern_sg_entries = 0; 10308 10309 /* 10310 * The control device is always connected. The disk device, on the 10311 * other hand, may not be online all the time. Need to change this 10312 * to figure out whether the disk device is actually online or not. 10313 */ 10314 if (lun != NULL) 10315 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10316 lun->be_lun->lun_type; 10317 else 10318 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10319 bdc_ptr->page_code = SVPD_BDC; 10320 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10321 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10322 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10323 10324 ctsio->scsi_status = SCSI_STATUS_OK; 10325 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10326 ctsio->be_move_done = ctl_config_move_done; 10327 ctl_datamove((union ctl_io *)ctsio); 10328 10329 return (CTL_RETVAL_COMPLETE); 10330} 10331 10332static int 10333ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10334{ 10335 struct scsi_vpd_logical_block_prov *lbp_ptr; 10336 struct ctl_lun *lun; 10337 10338 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10339 10340 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10341 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10342 ctsio->kern_sg_entries = 0; 10343 10344 if (sizeof(*lbp_ptr) < alloc_len) { 10345 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10346 ctsio->kern_data_len = sizeof(*lbp_ptr); 10347 ctsio->kern_total_len = sizeof(*lbp_ptr); 10348 } else { 10349 ctsio->residual = 0; 10350 ctsio->kern_data_len = alloc_len; 10351 ctsio->kern_total_len = alloc_len; 10352 } 10353 ctsio->kern_data_resid = 0; 10354 ctsio->kern_rel_offset = 0; 10355 ctsio->kern_sg_entries = 0; 10356 10357 /* 10358 * The control device is always connected. The disk device, on the 10359 * other hand, may not be online all the time. Need to change this 10360 * to figure out whether the disk device is actually online or not. 10361 */ 10362 if (lun != NULL) 10363 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10364 lun->be_lun->lun_type; 10365 else 10366 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10367 10368 lbp_ptr->page_code = SVPD_LBP; 10369 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10370 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10371 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10372 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10373 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10374 } 10375 10376 ctsio->scsi_status = SCSI_STATUS_OK; 10377 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10378 ctsio->be_move_done = ctl_config_move_done; 10379 ctl_datamove((union ctl_io *)ctsio); 10380 10381 return (CTL_RETVAL_COMPLETE); 10382} 10383 10384static int 10385ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10386{ 10387 struct scsi_inquiry *cdb; 10388 struct ctl_lun *lun; 10389 int alloc_len, retval; 10390 10391 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10392 cdb = (struct scsi_inquiry *)ctsio->cdb; 10393 10394 retval = CTL_RETVAL_COMPLETE; 10395 10396 alloc_len = scsi_2btoul(cdb->length); 10397 10398 switch (cdb->page_code) { 10399 case SVPD_SUPPORTED_PAGES: 10400 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10401 break; 10402 case SVPD_UNIT_SERIAL_NUMBER: 10403 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10404 break; 10405 case SVPD_DEVICE_ID: 10406 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10407 break; 10408 case SVPD_EXTENDED_INQUIRY_DATA: 10409 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10410 break; 10411 case SVPD_MODE_PAGE_POLICY: 10412 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10413 break; 10414 case SVPD_SCSI_PORTS: 10415 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10416 break; 10417 case SVPD_SCSI_TPC: 10418 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10419 break; 10420 case SVPD_BLOCK_LIMITS: 10421 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10422 break; 10423 case SVPD_BDC: 10424 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10425 break; 10426 case SVPD_LBP: 10427 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10428 break; 10429 default: 10430 ctl_set_invalid_field(ctsio, 10431 /*sks_valid*/ 1, 10432 /*command*/ 1, 10433 /*field*/ 2, 10434 /*bit_valid*/ 0, 10435 /*bit*/ 0); 10436 ctl_done((union ctl_io *)ctsio); 10437 retval = CTL_RETVAL_COMPLETE; 10438 break; 10439 } 10440 10441 return (retval); 10442} 10443 10444static int 10445ctl_inquiry_std(struct ctl_scsiio *ctsio) 10446{ 10447 struct scsi_inquiry_data *inq_ptr; 10448 struct scsi_inquiry *cdb; 10449 struct ctl_softc *ctl_softc; 10450 struct ctl_lun *lun; 10451 char *val; 10452 uint32_t alloc_len, data_len; 10453 ctl_port_type port_type; 10454 10455 ctl_softc = control_softc; 10456 10457 /* 10458 * Figure out whether we're talking to a Fibre Channel port or not. 10459 * We treat the ioctl front end, and any SCSI adapters, as packetized 10460 * SCSI front ends. 10461 */ 10462 port_type = ctl_softc->ctl_ports[ 10463 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10464 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10465 port_type = CTL_PORT_SCSI; 10466 10467 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10468 cdb = (struct scsi_inquiry *)ctsio->cdb; 10469 alloc_len = scsi_2btoul(cdb->length); 10470 10471 /* 10472 * We malloc the full inquiry data size here and fill it 10473 * in. If the user only asks for less, we'll give him 10474 * that much. 10475 */ 10476 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10477 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10478 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10479 ctsio->kern_sg_entries = 0; 10480 ctsio->kern_data_resid = 0; 10481 ctsio->kern_rel_offset = 0; 10482 10483 if (data_len < alloc_len) { 10484 ctsio->residual = alloc_len - data_len; 10485 ctsio->kern_data_len = data_len; 10486 ctsio->kern_total_len = data_len; 10487 } else { 10488 ctsio->residual = 0; 10489 ctsio->kern_data_len = alloc_len; 10490 ctsio->kern_total_len = alloc_len; 10491 } 10492 10493 /* 10494 * If we have a LUN configured, report it as connected. Otherwise, 10495 * report that it is offline or no device is supported, depending 10496 * on the value of inquiry_pq_no_lun. 10497 * 10498 * According to the spec (SPC-4 r34), the peripheral qualifier 10499 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10500 * 10501 * "A peripheral device having the specified peripheral device type 10502 * is not connected to this logical unit. However, the device 10503 * server is capable of supporting the specified peripheral device 10504 * type on this logical unit." 10505 * 10506 * According to the same spec, the peripheral qualifier 10507 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10508 * 10509 * "The device server is not capable of supporting a peripheral 10510 * device on this logical unit. For this peripheral qualifier the 10511 * peripheral device type shall be set to 1Fh. All other peripheral 10512 * device type values are reserved for this peripheral qualifier." 10513 * 10514 * Given the text, it would seem that we probably want to report that 10515 * the LUN is offline here. There is no LUN connected, but we can 10516 * support a LUN at the given LUN number. 10517 * 10518 * In the real world, though, it sounds like things are a little 10519 * different: 10520 * 10521 * - Linux, when presented with a LUN with the offline peripheral 10522 * qualifier, will create an sg driver instance for it. So when 10523 * you attach it to CTL, you wind up with a ton of sg driver 10524 * instances. (One for every LUN that Linux bothered to probe.) 10525 * Linux does this despite the fact that it issues a REPORT LUNs 10526 * to LUN 0 to get the inventory of supported LUNs. 10527 * 10528 * - There is other anecdotal evidence (from Emulex folks) about 10529 * arrays that use the offline peripheral qualifier for LUNs that 10530 * are on the "passive" path in an active/passive array. 10531 * 10532 * So the solution is provide a hopefully reasonable default 10533 * (return bad/no LUN) and allow the user to change the behavior 10534 * with a tunable/sysctl variable. 10535 */ 10536 if (lun != NULL) 10537 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10538 lun->be_lun->lun_type; 10539 else if (ctl_softc->inquiry_pq_no_lun == 0) 10540 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10541 else 10542 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10543 10544 /* RMB in byte 2 is 0 */ 10545 inq_ptr->version = SCSI_REV_SPC4; 10546 10547 /* 10548 * According to SAM-3, even if a device only supports a single 10549 * level of LUN addressing, it should still set the HISUP bit: 10550 * 10551 * 4.9.1 Logical unit numbers overview 10552 * 10553 * All logical unit number formats described in this standard are 10554 * hierarchical in structure even when only a single level in that 10555 * hierarchy is used. The HISUP bit shall be set to one in the 10556 * standard INQUIRY data (see SPC-2) when any logical unit number 10557 * format described in this standard is used. Non-hierarchical 10558 * formats are outside the scope of this standard. 10559 * 10560 * Therefore we set the HiSup bit here. 10561 * 10562 * The reponse format is 2, per SPC-3. 10563 */ 10564 inq_ptr->response_format = SID_HiSup | 2; 10565 10566 inq_ptr->additional_length = data_len - 10567 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10568 CTL_DEBUG_PRINT(("additional_length = %d\n", 10569 inq_ptr->additional_length)); 10570 10571 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10572 /* 16 bit addressing */ 10573 if (port_type == CTL_PORT_SCSI) 10574 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10575 /* XXX set the SID_MultiP bit here if we're actually going to 10576 respond on multiple ports */ 10577 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10578 10579 /* 16 bit data bus, synchronous transfers */ 10580 if (port_type == CTL_PORT_SCSI) 10581 inq_ptr->flags = SID_WBus16 | SID_Sync; 10582 /* 10583 * XXX KDM do we want to support tagged queueing on the control 10584 * device at all? 10585 */ 10586 if ((lun == NULL) 10587 || (lun->be_lun->lun_type != T_PROCESSOR)) 10588 inq_ptr->flags |= SID_CmdQue; 10589 /* 10590 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10591 * We have 8 bytes for the vendor name, and 16 bytes for the device 10592 * name and 4 bytes for the revision. 10593 */ 10594 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10595 "vendor")) == NULL) { 10596 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10597 } else { 10598 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10599 strncpy(inq_ptr->vendor, val, 10600 min(sizeof(inq_ptr->vendor), strlen(val))); 10601 } 10602 if (lun == NULL) { 10603 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10604 sizeof(inq_ptr->product)); 10605 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10606 switch (lun->be_lun->lun_type) { 10607 case T_DIRECT: 10608 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10609 sizeof(inq_ptr->product)); 10610 break; 10611 case T_PROCESSOR: 10612 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10613 sizeof(inq_ptr->product)); 10614 break; 10615 default: 10616 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10617 sizeof(inq_ptr->product)); 10618 break; 10619 } 10620 } else { 10621 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10622 strncpy(inq_ptr->product, val, 10623 min(sizeof(inq_ptr->product), strlen(val))); 10624 } 10625 10626 /* 10627 * XXX make this a macro somewhere so it automatically gets 10628 * incremented when we make changes. 10629 */ 10630 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10631 "revision")) == NULL) { 10632 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10633 } else { 10634 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10635 strncpy(inq_ptr->revision, val, 10636 min(sizeof(inq_ptr->revision), strlen(val))); 10637 } 10638 10639 /* 10640 * For parallel SCSI, we support double transition and single 10641 * transition clocking. We also support QAS (Quick Arbitration 10642 * and Selection) and Information Unit transfers on both the 10643 * control and array devices. 10644 */ 10645 if (port_type == CTL_PORT_SCSI) 10646 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10647 SID_SPI_IUS; 10648 10649 /* SAM-5 (no version claimed) */ 10650 scsi_ulto2b(0x00A0, inq_ptr->version1); 10651 /* SPC-4 (no version claimed) */ 10652 scsi_ulto2b(0x0460, inq_ptr->version2); 10653 if (port_type == CTL_PORT_FC) { 10654 /* FCP-2 ANSI INCITS.350:2003 */ 10655 scsi_ulto2b(0x0917, inq_ptr->version3); 10656 } else if (port_type == CTL_PORT_SCSI) { 10657 /* SPI-4 ANSI INCITS.362:200x */ 10658 scsi_ulto2b(0x0B56, inq_ptr->version3); 10659 } else if (port_type == CTL_PORT_ISCSI) { 10660 /* iSCSI (no version claimed) */ 10661 scsi_ulto2b(0x0960, inq_ptr->version3); 10662 } else if (port_type == CTL_PORT_SAS) { 10663 /* SAS (no version claimed) */ 10664 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10665 } 10666 10667 if (lun == NULL) { 10668 /* SBC-4 (no version claimed) */ 10669 scsi_ulto2b(0x0600, inq_ptr->version4); 10670 } else { 10671 switch (lun->be_lun->lun_type) { 10672 case T_DIRECT: 10673 /* SBC-4 (no version claimed) */ 10674 scsi_ulto2b(0x0600, inq_ptr->version4); 10675 break; 10676 case T_PROCESSOR: 10677 default: 10678 break; 10679 } 10680 } 10681 10682 ctsio->scsi_status = SCSI_STATUS_OK; 10683 if (ctsio->kern_data_len > 0) { 10684 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10685 ctsio->be_move_done = ctl_config_move_done; 10686 ctl_datamove((union ctl_io *)ctsio); 10687 } else { 10688 ctsio->io_hdr.status = CTL_SUCCESS; 10689 ctl_done((union ctl_io *)ctsio); 10690 } 10691 10692 return (CTL_RETVAL_COMPLETE); 10693} 10694 10695int 10696ctl_inquiry(struct ctl_scsiio *ctsio) 10697{ 10698 struct scsi_inquiry *cdb; 10699 int retval; 10700 10701 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10702 10703 cdb = (struct scsi_inquiry *)ctsio->cdb; 10704 if (cdb->byte2 & SI_EVPD) 10705 retval = ctl_inquiry_evpd(ctsio); 10706 else if (cdb->page_code == 0) 10707 retval = ctl_inquiry_std(ctsio); 10708 else { 10709 ctl_set_invalid_field(ctsio, 10710 /*sks_valid*/ 1, 10711 /*command*/ 1, 10712 /*field*/ 2, 10713 /*bit_valid*/ 0, 10714 /*bit*/ 0); 10715 ctl_done((union ctl_io *)ctsio); 10716 return (CTL_RETVAL_COMPLETE); 10717 } 10718 10719 return (retval); 10720} 10721 10722/* 10723 * For known CDB types, parse the LBA and length. 10724 */ 10725static int 10726ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10727{ 10728 if (io->io_hdr.io_type != CTL_IO_SCSI) 10729 return (1); 10730 10731 switch (io->scsiio.cdb[0]) { 10732 case COMPARE_AND_WRITE: { 10733 struct scsi_compare_and_write *cdb; 10734 10735 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10736 10737 *lba = scsi_8btou64(cdb->addr); 10738 *len = cdb->length; 10739 break; 10740 } 10741 case READ_6: 10742 case WRITE_6: { 10743 struct scsi_rw_6 *cdb; 10744 10745 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10746 10747 *lba = scsi_3btoul(cdb->addr); 10748 /* only 5 bits are valid in the most significant address byte */ 10749 *lba &= 0x1fffff; 10750 *len = cdb->length; 10751 break; 10752 } 10753 case READ_10: 10754 case WRITE_10: { 10755 struct scsi_rw_10 *cdb; 10756 10757 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10758 10759 *lba = scsi_4btoul(cdb->addr); 10760 *len = scsi_2btoul(cdb->length); 10761 break; 10762 } 10763 case WRITE_VERIFY_10: { 10764 struct scsi_write_verify_10 *cdb; 10765 10766 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10767 10768 *lba = scsi_4btoul(cdb->addr); 10769 *len = scsi_2btoul(cdb->length); 10770 break; 10771 } 10772 case READ_12: 10773 case WRITE_12: { 10774 struct scsi_rw_12 *cdb; 10775 10776 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10777 10778 *lba = scsi_4btoul(cdb->addr); 10779 *len = scsi_4btoul(cdb->length); 10780 break; 10781 } 10782 case WRITE_VERIFY_12: { 10783 struct scsi_write_verify_12 *cdb; 10784 10785 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10786 10787 *lba = scsi_4btoul(cdb->addr); 10788 *len = scsi_4btoul(cdb->length); 10789 break; 10790 } 10791 case READ_16: 10792 case WRITE_16: 10793 case WRITE_ATOMIC_16: { 10794 struct scsi_rw_16 *cdb; 10795 10796 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10797 10798 *lba = scsi_8btou64(cdb->addr); 10799 *len = scsi_4btoul(cdb->length); 10800 break; 10801 } 10802 case WRITE_VERIFY_16: { 10803 struct scsi_write_verify_16 *cdb; 10804 10805 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10806 10807 *lba = scsi_8btou64(cdb->addr); 10808 *len = scsi_4btoul(cdb->length); 10809 break; 10810 } 10811 case WRITE_SAME_10: { 10812 struct scsi_write_same_10 *cdb; 10813 10814 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10815 10816 *lba = scsi_4btoul(cdb->addr); 10817 *len = scsi_2btoul(cdb->length); 10818 break; 10819 } 10820 case WRITE_SAME_16: { 10821 struct scsi_write_same_16 *cdb; 10822 10823 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10824 10825 *lba = scsi_8btou64(cdb->addr); 10826 *len = scsi_4btoul(cdb->length); 10827 break; 10828 } 10829 case VERIFY_10: { 10830 struct scsi_verify_10 *cdb; 10831 10832 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10833 10834 *lba = scsi_4btoul(cdb->addr); 10835 *len = scsi_2btoul(cdb->length); 10836 break; 10837 } 10838 case VERIFY_12: { 10839 struct scsi_verify_12 *cdb; 10840 10841 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10842 10843 *lba = scsi_4btoul(cdb->addr); 10844 *len = scsi_4btoul(cdb->length); 10845 break; 10846 } 10847 case VERIFY_16: { 10848 struct scsi_verify_16 *cdb; 10849 10850 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10851 10852 *lba = scsi_8btou64(cdb->addr); 10853 *len = scsi_4btoul(cdb->length); 10854 break; 10855 } 10856 case UNMAP: { 10857 *lba = 0; 10858 *len = UINT64_MAX; 10859 break; 10860 } 10861 default: 10862 return (1); 10863 break; /* NOTREACHED */ 10864 } 10865 10866 return (0); 10867} 10868 10869static ctl_action 10870ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10871{ 10872 uint64_t endlba1, endlba2; 10873 10874 endlba1 = lba1 + len1 - 1; 10875 endlba2 = lba2 + len2 - 1; 10876 10877 if ((endlba1 < lba2) 10878 || (endlba2 < lba1)) 10879 return (CTL_ACTION_PASS); 10880 else 10881 return (CTL_ACTION_BLOCK); 10882} 10883 10884static int 10885ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10886{ 10887 struct ctl_ptr_len_flags *ptrlen; 10888 struct scsi_unmap_desc *buf, *end, *range; 10889 uint64_t lba; 10890 uint32_t len; 10891 10892 /* If not UNMAP -- go other way. */ 10893 if (io->io_hdr.io_type != CTL_IO_SCSI || 10894 io->scsiio.cdb[0] != UNMAP) 10895 return (CTL_ACTION_ERROR); 10896 10897 /* If UNMAP without data -- block and wait for data. */ 10898 ptrlen = (struct ctl_ptr_len_flags *) 10899 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10900 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10901 ptrlen->ptr == NULL) 10902 return (CTL_ACTION_BLOCK); 10903 10904 /* UNMAP with data -- check for collision. */ 10905 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10906 end = buf + ptrlen->len / sizeof(*buf); 10907 for (range = buf; range < end; range++) { 10908 lba = scsi_8btou64(range->lba); 10909 len = scsi_4btoul(range->length); 10910 if ((lba < lba2 + len2) && (lba + len > lba2)) 10911 return (CTL_ACTION_BLOCK); 10912 } 10913 return (CTL_ACTION_PASS); 10914} 10915 10916static ctl_action 10917ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10918{ 10919 uint64_t lba1, lba2; 10920 uint64_t len1, len2; 10921 int retval; 10922 10923 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10924 return (CTL_ACTION_ERROR); 10925 10926 retval = ctl_extent_check_unmap(io2, lba1, len1); 10927 if (retval != CTL_ACTION_ERROR) 10928 return (retval); 10929 10930 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10931 return (CTL_ACTION_ERROR); 10932 10933 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10934} 10935 10936static ctl_action 10937ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10938 union ctl_io *ooa_io) 10939{ 10940 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10941 ctl_serialize_action *serialize_row; 10942 10943 /* 10944 * The initiator attempted multiple untagged commands at the same 10945 * time. Can't do that. 10946 */ 10947 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10948 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10949 && ((pending_io->io_hdr.nexus.targ_port == 10950 ooa_io->io_hdr.nexus.targ_port) 10951 && (pending_io->io_hdr.nexus.initid.id == 10952 ooa_io->io_hdr.nexus.initid.id)) 10953 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10954 return (CTL_ACTION_OVERLAP); 10955 10956 /* 10957 * The initiator attempted to send multiple tagged commands with 10958 * the same ID. (It's fine if different initiators have the same 10959 * tag ID.) 10960 * 10961 * Even if all of those conditions are true, we don't kill the I/O 10962 * if the command ahead of us has been aborted. We won't end up 10963 * sending it to the FETD, and it's perfectly legal to resend a 10964 * command with the same tag number as long as the previous 10965 * instance of this tag number has been aborted somehow. 10966 */ 10967 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10968 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10969 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10970 && ((pending_io->io_hdr.nexus.targ_port == 10971 ooa_io->io_hdr.nexus.targ_port) 10972 && (pending_io->io_hdr.nexus.initid.id == 10973 ooa_io->io_hdr.nexus.initid.id)) 10974 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10975 return (CTL_ACTION_OVERLAP_TAG); 10976 10977 /* 10978 * If we get a head of queue tag, SAM-3 says that we should 10979 * immediately execute it. 10980 * 10981 * What happens if this command would normally block for some other 10982 * reason? e.g. a request sense with a head of queue tag 10983 * immediately after a write. Normally that would block, but this 10984 * will result in its getting executed immediately... 10985 * 10986 * We currently return "pass" instead of "skip", so we'll end up 10987 * going through the rest of the queue to check for overlapped tags. 10988 * 10989 * XXX KDM check for other types of blockage first?? 10990 */ 10991 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10992 return (CTL_ACTION_PASS); 10993 10994 /* 10995 * Ordered tags have to block until all items ahead of them 10996 * have completed. If we get called with an ordered tag, we always 10997 * block, if something else is ahead of us in the queue. 10998 */ 10999 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11000 return (CTL_ACTION_BLOCK); 11001 11002 /* 11003 * Simple tags get blocked until all head of queue and ordered tags 11004 * ahead of them have completed. I'm lumping untagged commands in 11005 * with simple tags here. XXX KDM is that the right thing to do? 11006 */ 11007 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11008 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11009 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11010 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11011 return (CTL_ACTION_BLOCK); 11012 11013 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11014 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11015 11016 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11017 11018 switch (serialize_row[pending_entry->seridx]) { 11019 case CTL_SER_BLOCK: 11020 return (CTL_ACTION_BLOCK); 11021 case CTL_SER_EXTENT: 11022 return (ctl_extent_check(pending_io, ooa_io)); 11023 case CTL_SER_EXTENTOPT: 11024 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11025 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11026 return (ctl_extent_check(pending_io, ooa_io)); 11027 /* FALLTHROUGH */ 11028 case CTL_SER_PASS: 11029 return (CTL_ACTION_PASS); 11030 case CTL_SER_BLOCKOPT: 11031 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11032 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11033 return (CTL_ACTION_BLOCK); 11034 return (CTL_ACTION_PASS); 11035 case CTL_SER_SKIP: 11036 return (CTL_ACTION_SKIP); 11037 default: 11038 panic("invalid serialization value %d", 11039 serialize_row[pending_entry->seridx]); 11040 } 11041 11042 return (CTL_ACTION_ERROR); 11043} 11044 11045/* 11046 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11047 * Assumptions: 11048 * - pending_io is generally either incoming, or on the blocked queue 11049 * - starting I/O is the I/O we want to start the check with. 11050 */ 11051static ctl_action 11052ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11053 union ctl_io *starting_io) 11054{ 11055 union ctl_io *ooa_io; 11056 ctl_action action; 11057 11058 mtx_assert(&lun->lun_lock, MA_OWNED); 11059 11060 /* 11061 * Run back along the OOA queue, starting with the current 11062 * blocked I/O and going through every I/O before it on the 11063 * queue. If starting_io is NULL, we'll just end up returning 11064 * CTL_ACTION_PASS. 11065 */ 11066 for (ooa_io = starting_io; ooa_io != NULL; 11067 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11068 ooa_links)){ 11069 11070 /* 11071 * This routine just checks to see whether 11072 * cur_blocked is blocked by ooa_io, which is ahead 11073 * of it in the queue. It doesn't queue/dequeue 11074 * cur_blocked. 11075 */ 11076 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11077 switch (action) { 11078 case CTL_ACTION_BLOCK: 11079 case CTL_ACTION_OVERLAP: 11080 case CTL_ACTION_OVERLAP_TAG: 11081 case CTL_ACTION_SKIP: 11082 case CTL_ACTION_ERROR: 11083 return (action); 11084 break; /* NOTREACHED */ 11085 case CTL_ACTION_PASS: 11086 break; 11087 default: 11088 panic("invalid action %d", action); 11089 break; /* NOTREACHED */ 11090 } 11091 } 11092 11093 return (CTL_ACTION_PASS); 11094} 11095 11096/* 11097 * Assumptions: 11098 * - An I/O has just completed, and has been removed from the per-LUN OOA 11099 * queue, so some items on the blocked queue may now be unblocked. 11100 */ 11101static int 11102ctl_check_blocked(struct ctl_lun *lun) 11103{ 11104 union ctl_io *cur_blocked, *next_blocked; 11105 11106 mtx_assert(&lun->lun_lock, MA_OWNED); 11107 11108 /* 11109 * Run forward from the head of the blocked queue, checking each 11110 * entry against the I/Os prior to it on the OOA queue to see if 11111 * there is still any blockage. 11112 * 11113 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11114 * with our removing a variable on it while it is traversing the 11115 * list. 11116 */ 11117 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11118 cur_blocked != NULL; cur_blocked = next_blocked) { 11119 union ctl_io *prev_ooa; 11120 ctl_action action; 11121 11122 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11123 blocked_links); 11124 11125 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11126 ctl_ooaq, ooa_links); 11127 11128 /* 11129 * If cur_blocked happens to be the first item in the OOA 11130 * queue now, prev_ooa will be NULL, and the action 11131 * returned will just be CTL_ACTION_PASS. 11132 */ 11133 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11134 11135 switch (action) { 11136 case CTL_ACTION_BLOCK: 11137 /* Nothing to do here, still blocked */ 11138 break; 11139 case CTL_ACTION_OVERLAP: 11140 case CTL_ACTION_OVERLAP_TAG: 11141 /* 11142 * This shouldn't happen! In theory we've already 11143 * checked this command for overlap... 11144 */ 11145 break; 11146 case CTL_ACTION_PASS: 11147 case CTL_ACTION_SKIP: { 11148 struct ctl_softc *softc; 11149 const struct ctl_cmd_entry *entry; 11150 uint32_t initidx; 11151 int isc_retval; 11152 11153 /* 11154 * The skip case shouldn't happen, this transaction 11155 * should have never made it onto the blocked queue. 11156 */ 11157 /* 11158 * This I/O is no longer blocked, we can remove it 11159 * from the blocked queue. Since this is a TAILQ 11160 * (doubly linked list), we can do O(1) removals 11161 * from any place on the list. 11162 */ 11163 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11164 blocked_links); 11165 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11166 11167 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11168 /* 11169 * Need to send IO back to original side to 11170 * run 11171 */ 11172 union ctl_ha_msg msg_info; 11173 11174 msg_info.hdr.original_sc = 11175 cur_blocked->io_hdr.original_sc; 11176 msg_info.hdr.serializing_sc = cur_blocked; 11177 msg_info.hdr.msg_type = CTL_MSG_R2R; 11178 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11179 &msg_info, sizeof(msg_info), 0)) > 11180 CTL_HA_STATUS_SUCCESS) { 11181 printf("CTL:Check Blocked error from " 11182 "ctl_ha_msg_send %d\n", 11183 isc_retval); 11184 } 11185 break; 11186 } 11187 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11188 softc = control_softc; 11189 11190 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11191 11192 /* 11193 * Check this I/O for LUN state changes that may 11194 * have happened while this command was blocked. 11195 * The LUN state may have been changed by a command 11196 * ahead of us in the queue, so we need to re-check 11197 * for any states that can be caused by SCSI 11198 * commands. 11199 */ 11200 if (ctl_scsiio_lun_check(softc, lun, entry, 11201 &cur_blocked->scsiio) == 0) { 11202 cur_blocked->io_hdr.flags |= 11203 CTL_FLAG_IS_WAS_ON_RTR; 11204 ctl_enqueue_rtr(cur_blocked); 11205 } else 11206 ctl_done(cur_blocked); 11207 break; 11208 } 11209 default: 11210 /* 11211 * This probably shouldn't happen -- we shouldn't 11212 * get CTL_ACTION_ERROR, or anything else. 11213 */ 11214 break; 11215 } 11216 } 11217 11218 return (CTL_RETVAL_COMPLETE); 11219} 11220 11221/* 11222 * This routine (with one exception) checks LUN flags that can be set by 11223 * commands ahead of us in the OOA queue. These flags have to be checked 11224 * when a command initially comes in, and when we pull a command off the 11225 * blocked queue and are preparing to execute it. The reason we have to 11226 * check these flags for commands on the blocked queue is that the LUN 11227 * state may have been changed by a command ahead of us while we're on the 11228 * blocked queue. 11229 * 11230 * Ordering is somewhat important with these checks, so please pay 11231 * careful attention to the placement of any new checks. 11232 */ 11233static int 11234ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11235 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11236{ 11237 int retval; 11238 uint32_t residx; 11239 11240 retval = 0; 11241 11242 mtx_assert(&lun->lun_lock, MA_OWNED); 11243 11244 /* 11245 * If this shelf is a secondary shelf controller, we have to reject 11246 * any media access commands. 11247 */ 11248#if 0 11249 /* No longer needed for HA */ 11250 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11251 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11252 ctl_set_lun_standby(ctsio); 11253 retval = 1; 11254 goto bailout; 11255 } 11256#endif 11257 11258 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11259 if (lun->flags & CTL_LUN_READONLY) { 11260 ctl_set_sense(ctsio, /*current_error*/ 1, 11261 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11262 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11263 retval = 1; 11264 goto bailout; 11265 } 11266 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11267 .eca_and_aen & SCP_SWP) != 0) { 11268 ctl_set_sense(ctsio, /*current_error*/ 1, 11269 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11270 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11271 retval = 1; 11272 goto bailout; 11273 } 11274 } 11275 11276 /* 11277 * Check for a reservation conflict. If this command isn't allowed 11278 * even on reserved LUNs, and if this initiator isn't the one who 11279 * reserved us, reject the command with a reservation conflict. 11280 */ 11281 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11282 if ((lun->flags & CTL_LUN_RESERVED) 11283 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11284 if (lun->res_idx != residx) { 11285 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11286 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11287 retval = 1; 11288 goto bailout; 11289 } 11290 } 11291 11292 if ((lun->flags & CTL_LUN_PR_RESERVED) 11293 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11294 /* 11295 * if we aren't registered or it's a res holder type 11296 * reservation and this isn't the res holder then set a 11297 * conflict. 11298 * NOTE: Commands which might be allowed on write exclusive 11299 * type reservations are checked in the particular command 11300 * for a conflict. Read and SSU are the only ones. 11301 */ 11302 if (lun->pr_keys[residx] == 0 11303 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11304 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11305 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11306 retval = 1; 11307 goto bailout; 11308 } 11309 11310 } 11311 11312 if ((lun->flags & CTL_LUN_OFFLINE) 11313 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11314 ctl_set_lun_not_ready(ctsio); 11315 retval = 1; 11316 goto bailout; 11317 } 11318 11319 /* 11320 * If the LUN is stopped, see if this particular command is allowed 11321 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11322 */ 11323 if ((lun->flags & CTL_LUN_STOPPED) 11324 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11325 /* "Logical unit not ready, initializing cmd. required" */ 11326 ctl_set_lun_stopped(ctsio); 11327 retval = 1; 11328 goto bailout; 11329 } 11330 11331 if ((lun->flags & CTL_LUN_INOPERABLE) 11332 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11333 /* "Medium format corrupted" */ 11334 ctl_set_medium_format_corrupted(ctsio); 11335 retval = 1; 11336 goto bailout; 11337 } 11338 11339bailout: 11340 return (retval); 11341 11342} 11343 11344static void 11345ctl_failover_io(union ctl_io *io, int have_lock) 11346{ 11347 ctl_set_busy(&io->scsiio); 11348 ctl_done(io); 11349} 11350 11351static void 11352ctl_failover(void) 11353{ 11354 struct ctl_lun *lun; 11355 struct ctl_softc *ctl_softc; 11356 union ctl_io *next_io, *pending_io; 11357 union ctl_io *io; 11358 int lun_idx; 11359 int i; 11360 11361 ctl_softc = control_softc; 11362 11363 mtx_lock(&ctl_softc->ctl_lock); 11364 /* 11365 * Remove any cmds from the other SC from the rtr queue. These 11366 * will obviously only be for LUNs for which we're the primary. 11367 * We can't send status or get/send data for these commands. 11368 * Since they haven't been executed yet, we can just remove them. 11369 * We'll either abort them or delete them below, depending on 11370 * which HA mode we're in. 11371 */ 11372#ifdef notyet 11373 mtx_lock(&ctl_softc->queue_lock); 11374 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11375 io != NULL; io = next_io) { 11376 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11377 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11378 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11379 ctl_io_hdr, links); 11380 } 11381 mtx_unlock(&ctl_softc->queue_lock); 11382#endif 11383 11384 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11385 lun = ctl_softc->ctl_luns[lun_idx]; 11386 if (lun==NULL) 11387 continue; 11388 11389 /* 11390 * Processor LUNs are primary on both sides. 11391 * XXX will this always be true? 11392 */ 11393 if (lun->be_lun->lun_type == T_PROCESSOR) 11394 continue; 11395 11396 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11397 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11398 printf("FAILOVER: primary lun %d\n", lun_idx); 11399 /* 11400 * Remove all commands from the other SC. First from the 11401 * blocked queue then from the ooa queue. Once we have 11402 * removed them. Call ctl_check_blocked to see if there 11403 * is anything that can run. 11404 */ 11405 for (io = (union ctl_io *)TAILQ_FIRST( 11406 &lun->blocked_queue); io != NULL; io = next_io) { 11407 11408 next_io = (union ctl_io *)TAILQ_NEXT( 11409 &io->io_hdr, blocked_links); 11410 11411 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11412 TAILQ_REMOVE(&lun->blocked_queue, 11413 &io->io_hdr,blocked_links); 11414 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11415 TAILQ_REMOVE(&lun->ooa_queue, 11416 &io->io_hdr, ooa_links); 11417 11418 ctl_free_io(io); 11419 } 11420 } 11421 11422 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11423 io != NULL; io = next_io) { 11424 11425 next_io = (union ctl_io *)TAILQ_NEXT( 11426 &io->io_hdr, ooa_links); 11427 11428 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11429 11430 TAILQ_REMOVE(&lun->ooa_queue, 11431 &io->io_hdr, 11432 ooa_links); 11433 11434 ctl_free_io(io); 11435 } 11436 } 11437 ctl_check_blocked(lun); 11438 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11439 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11440 11441 printf("FAILOVER: primary lun %d\n", lun_idx); 11442 /* 11443 * Abort all commands from the other SC. We can't 11444 * send status back for them now. These should get 11445 * cleaned up when they are completed or come out 11446 * for a datamove operation. 11447 */ 11448 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11449 io != NULL; io = next_io) { 11450 next_io = (union ctl_io *)TAILQ_NEXT( 11451 &io->io_hdr, ooa_links); 11452 11453 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11454 io->io_hdr.flags |= CTL_FLAG_ABORT; 11455 } 11456 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11457 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11458 11459 printf("FAILOVER: secondary lun %d\n", lun_idx); 11460 11461 lun->flags |= CTL_LUN_PRIMARY_SC; 11462 11463 /* 11464 * We send all I/O that was sent to this controller 11465 * and redirected to the other side back with 11466 * busy status, and have the initiator retry it. 11467 * Figuring out how much data has been transferred, 11468 * etc. and picking up where we left off would be 11469 * very tricky. 11470 * 11471 * XXX KDM need to remove I/O from the blocked 11472 * queue as well! 11473 */ 11474 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11475 &lun->ooa_queue); pending_io != NULL; 11476 pending_io = next_io) { 11477 11478 next_io = (union ctl_io *)TAILQ_NEXT( 11479 &pending_io->io_hdr, ooa_links); 11480 11481 pending_io->io_hdr.flags &= 11482 ~CTL_FLAG_SENT_2OTHER_SC; 11483 11484 if (pending_io->io_hdr.flags & 11485 CTL_FLAG_IO_ACTIVE) { 11486 pending_io->io_hdr.flags |= 11487 CTL_FLAG_FAILOVER; 11488 } else { 11489 ctl_set_busy(&pending_io->scsiio); 11490 ctl_done(pending_io); 11491 } 11492 } 11493 11494 /* 11495 * Build Unit Attention 11496 */ 11497 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11498 lun->pending_ua[i] |= 11499 CTL_UA_ASYM_ACC_CHANGE; 11500 } 11501 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11502 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11503 printf("FAILOVER: secondary lun %d\n", lun_idx); 11504 /* 11505 * if the first io on the OOA is not on the RtR queue 11506 * add it. 11507 */ 11508 lun->flags |= CTL_LUN_PRIMARY_SC; 11509 11510 pending_io = (union ctl_io *)TAILQ_FIRST( 11511 &lun->ooa_queue); 11512 if (pending_io==NULL) { 11513 printf("Nothing on OOA queue\n"); 11514 continue; 11515 } 11516 11517 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11518 if ((pending_io->io_hdr.flags & 11519 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11520 pending_io->io_hdr.flags |= 11521 CTL_FLAG_IS_WAS_ON_RTR; 11522 ctl_enqueue_rtr(pending_io); 11523 } 11524#if 0 11525 else 11526 { 11527 printf("Tag 0x%04x is running\n", 11528 pending_io->scsiio.tag_num); 11529 } 11530#endif 11531 11532 next_io = (union ctl_io *)TAILQ_NEXT( 11533 &pending_io->io_hdr, ooa_links); 11534 for (pending_io=next_io; pending_io != NULL; 11535 pending_io = next_io) { 11536 pending_io->io_hdr.flags &= 11537 ~CTL_FLAG_SENT_2OTHER_SC; 11538 next_io = (union ctl_io *)TAILQ_NEXT( 11539 &pending_io->io_hdr, ooa_links); 11540 if (pending_io->io_hdr.flags & 11541 CTL_FLAG_IS_WAS_ON_RTR) { 11542#if 0 11543 printf("Tag 0x%04x is running\n", 11544 pending_io->scsiio.tag_num); 11545#endif 11546 continue; 11547 } 11548 11549 switch (ctl_check_ooa(lun, pending_io, 11550 (union ctl_io *)TAILQ_PREV( 11551 &pending_io->io_hdr, ctl_ooaq, 11552 ooa_links))) { 11553 11554 case CTL_ACTION_BLOCK: 11555 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11556 &pending_io->io_hdr, 11557 blocked_links); 11558 pending_io->io_hdr.flags |= 11559 CTL_FLAG_BLOCKED; 11560 break; 11561 case CTL_ACTION_PASS: 11562 case CTL_ACTION_SKIP: 11563 pending_io->io_hdr.flags |= 11564 CTL_FLAG_IS_WAS_ON_RTR; 11565 ctl_enqueue_rtr(pending_io); 11566 break; 11567 case CTL_ACTION_OVERLAP: 11568 ctl_set_overlapped_cmd( 11569 (struct ctl_scsiio *)pending_io); 11570 ctl_done(pending_io); 11571 break; 11572 case CTL_ACTION_OVERLAP_TAG: 11573 ctl_set_overlapped_tag( 11574 (struct ctl_scsiio *)pending_io, 11575 pending_io->scsiio.tag_num & 0xff); 11576 ctl_done(pending_io); 11577 break; 11578 case CTL_ACTION_ERROR: 11579 default: 11580 ctl_set_internal_failure( 11581 (struct ctl_scsiio *)pending_io, 11582 0, // sks_valid 11583 0); //retry count 11584 ctl_done(pending_io); 11585 break; 11586 } 11587 } 11588 11589 /* 11590 * Build Unit Attention 11591 */ 11592 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11593 lun->pending_ua[i] |= 11594 CTL_UA_ASYM_ACC_CHANGE; 11595 } 11596 } else { 11597 panic("Unhandled HA mode failover, LUN flags = %#x, " 11598 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11599 } 11600 } 11601 ctl_pause_rtr = 0; 11602 mtx_unlock(&ctl_softc->ctl_lock); 11603} 11604 11605static int 11606ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11607{ 11608 struct ctl_lun *lun; 11609 const struct ctl_cmd_entry *entry; 11610 uint32_t initidx, targ_lun; 11611 int retval; 11612 11613 retval = 0; 11614 11615 lun = NULL; 11616 11617 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11618 if ((targ_lun < CTL_MAX_LUNS) 11619 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11620 lun = ctl_softc->ctl_luns[targ_lun]; 11621 /* 11622 * If the LUN is invalid, pretend that it doesn't exist. 11623 * It will go away as soon as all pending I/O has been 11624 * completed. 11625 */ 11626 if (lun->flags & CTL_LUN_DISABLED) { 11627 lun = NULL; 11628 } else { 11629 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11630 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11631 lun->be_lun; 11632 if (lun->be_lun->lun_type == T_PROCESSOR) { 11633 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11634 } 11635 11636 /* 11637 * Every I/O goes into the OOA queue for a 11638 * particular LUN, and stays there until completion. 11639 */ 11640 mtx_lock(&lun->lun_lock); 11641 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11642 ooa_links); 11643 } 11644 } else { 11645 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11646 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11647 } 11648 11649 /* Get command entry and return error if it is unsuppotyed. */ 11650 entry = ctl_validate_command(ctsio); 11651 if (entry == NULL) { 11652 if (lun) 11653 mtx_unlock(&lun->lun_lock); 11654 return (retval); 11655 } 11656 11657 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11658 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11659 11660 /* 11661 * Check to see whether we can send this command to LUNs that don't 11662 * exist. This should pretty much only be the case for inquiry 11663 * and request sense. Further checks, below, really require having 11664 * a LUN, so we can't really check the command anymore. Just put 11665 * it on the rtr queue. 11666 */ 11667 if (lun == NULL) { 11668 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11669 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11670 ctl_enqueue_rtr((union ctl_io *)ctsio); 11671 return (retval); 11672 } 11673 11674 ctl_set_unsupported_lun(ctsio); 11675 ctl_done((union ctl_io *)ctsio); 11676 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11677 return (retval); 11678 } else { 11679 /* 11680 * Make sure we support this particular command on this LUN. 11681 * e.g., we don't support writes to the control LUN. 11682 */ 11683 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11684 mtx_unlock(&lun->lun_lock); 11685 ctl_set_invalid_opcode(ctsio); 11686 ctl_done((union ctl_io *)ctsio); 11687 return (retval); 11688 } 11689 } 11690 11691 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11692 11693#ifdef CTL_WITH_CA 11694 /* 11695 * If we've got a request sense, it'll clear the contingent 11696 * allegiance condition. Otherwise, if we have a CA condition for 11697 * this initiator, clear it, because it sent down a command other 11698 * than request sense. 11699 */ 11700 if ((ctsio->cdb[0] != REQUEST_SENSE) 11701 && (ctl_is_set(lun->have_ca, initidx))) 11702 ctl_clear_mask(lun->have_ca, initidx); 11703#endif 11704 11705 /* 11706 * If the command has this flag set, it handles its own unit 11707 * attention reporting, we shouldn't do anything. Otherwise we 11708 * check for any pending unit attentions, and send them back to the 11709 * initiator. We only do this when a command initially comes in, 11710 * not when we pull it off the blocked queue. 11711 * 11712 * According to SAM-3, section 5.3.2, the order that things get 11713 * presented back to the host is basically unit attentions caused 11714 * by some sort of reset event, busy status, reservation conflicts 11715 * or task set full, and finally any other status. 11716 * 11717 * One issue here is that some of the unit attentions we report 11718 * don't fall into the "reset" category (e.g. "reported luns data 11719 * has changed"). So reporting it here, before the reservation 11720 * check, may be technically wrong. I guess the only thing to do 11721 * would be to check for and report the reset events here, and then 11722 * check for the other unit attention types after we check for a 11723 * reservation conflict. 11724 * 11725 * XXX KDM need to fix this 11726 */ 11727 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11728 ctl_ua_type ua_type; 11729 11730 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11731 scsi_sense_data_type sense_format; 11732 11733 if (lun != NULL) 11734 sense_format = (lun->flags & 11735 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11736 SSD_TYPE_FIXED; 11737 else 11738 sense_format = SSD_TYPE_FIXED; 11739 11740 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11741 &ctsio->sense_data, sense_format); 11742 if (ua_type != CTL_UA_NONE) { 11743 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11744 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11745 CTL_AUTOSENSE; 11746 ctsio->sense_len = SSD_FULL_SIZE; 11747 mtx_unlock(&lun->lun_lock); 11748 ctl_done((union ctl_io *)ctsio); 11749 return (retval); 11750 } 11751 } 11752 } 11753 11754 11755 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11756 mtx_unlock(&lun->lun_lock); 11757 ctl_done((union ctl_io *)ctsio); 11758 return (retval); 11759 } 11760 11761 /* 11762 * XXX CHD this is where we want to send IO to other side if 11763 * this LUN is secondary on this SC. We will need to make a copy 11764 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11765 * the copy we send as FROM_OTHER. 11766 * We also need to stuff the address of the original IO so we can 11767 * find it easily. Something similar will need be done on the other 11768 * side so when we are done we can find the copy. 11769 */ 11770 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11771 union ctl_ha_msg msg_info; 11772 int isc_retval; 11773 11774 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11775 11776 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11777 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11778#if 0 11779 printf("1. ctsio %p\n", ctsio); 11780#endif 11781 msg_info.hdr.serializing_sc = NULL; 11782 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11783 msg_info.scsi.tag_num = ctsio->tag_num; 11784 msg_info.scsi.tag_type = ctsio->tag_type; 11785 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11786 11787 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11788 11789 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11790 (void *)&msg_info, sizeof(msg_info), 0)) > 11791 CTL_HA_STATUS_SUCCESS) { 11792 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11793 isc_retval); 11794 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11795 } else { 11796#if 0 11797 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11798#endif 11799 } 11800 11801 /* 11802 * XXX KDM this I/O is off the incoming queue, but hasn't 11803 * been inserted on any other queue. We may need to come 11804 * up with a holding queue while we wait for serialization 11805 * so that we have an idea of what we're waiting for from 11806 * the other side. 11807 */ 11808 mtx_unlock(&lun->lun_lock); 11809 return (retval); 11810 } 11811 11812 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11813 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11814 ctl_ooaq, ooa_links))) { 11815 case CTL_ACTION_BLOCK: 11816 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11817 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11818 blocked_links); 11819 mtx_unlock(&lun->lun_lock); 11820 return (retval); 11821 case CTL_ACTION_PASS: 11822 case CTL_ACTION_SKIP: 11823 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11824 mtx_unlock(&lun->lun_lock); 11825 ctl_enqueue_rtr((union ctl_io *)ctsio); 11826 break; 11827 case CTL_ACTION_OVERLAP: 11828 mtx_unlock(&lun->lun_lock); 11829 ctl_set_overlapped_cmd(ctsio); 11830 ctl_done((union ctl_io *)ctsio); 11831 break; 11832 case CTL_ACTION_OVERLAP_TAG: 11833 mtx_unlock(&lun->lun_lock); 11834 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11835 ctl_done((union ctl_io *)ctsio); 11836 break; 11837 case CTL_ACTION_ERROR: 11838 default: 11839 mtx_unlock(&lun->lun_lock); 11840 ctl_set_internal_failure(ctsio, 11841 /*sks_valid*/ 0, 11842 /*retry_count*/ 0); 11843 ctl_done((union ctl_io *)ctsio); 11844 break; 11845 } 11846 return (retval); 11847} 11848 11849const struct ctl_cmd_entry * 11850ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11851{ 11852 const struct ctl_cmd_entry *entry; 11853 int service_action; 11854 11855 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11856 if (sa) 11857 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11858 if (entry->flags & CTL_CMD_FLAG_SA5) { 11859 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11860 entry = &((const struct ctl_cmd_entry *) 11861 entry->execute)[service_action]; 11862 } 11863 return (entry); 11864} 11865 11866const struct ctl_cmd_entry * 11867ctl_validate_command(struct ctl_scsiio *ctsio) 11868{ 11869 const struct ctl_cmd_entry *entry; 11870 int i, sa; 11871 uint8_t diff; 11872 11873 entry = ctl_get_cmd_entry(ctsio, &sa); 11874 if (entry->execute == NULL) { 11875 if (sa) 11876 ctl_set_invalid_field(ctsio, 11877 /*sks_valid*/ 1, 11878 /*command*/ 1, 11879 /*field*/ 1, 11880 /*bit_valid*/ 1, 11881 /*bit*/ 4); 11882 else 11883 ctl_set_invalid_opcode(ctsio); 11884 ctl_done((union ctl_io *)ctsio); 11885 return (NULL); 11886 } 11887 KASSERT(entry->length > 0, 11888 ("Not defined length for command 0x%02x/0x%02x", 11889 ctsio->cdb[0], ctsio->cdb[1])); 11890 for (i = 1; i < entry->length; i++) { 11891 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11892 if (diff == 0) 11893 continue; 11894 ctl_set_invalid_field(ctsio, 11895 /*sks_valid*/ 1, 11896 /*command*/ 1, 11897 /*field*/ i, 11898 /*bit_valid*/ 1, 11899 /*bit*/ fls(diff) - 1); 11900 ctl_done((union ctl_io *)ctsio); 11901 return (NULL); 11902 } 11903 return (entry); 11904} 11905 11906static int 11907ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11908{ 11909 11910 switch (lun_type) { 11911 case T_PROCESSOR: 11912 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11913 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11914 return (0); 11915 break; 11916 case T_DIRECT: 11917 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11918 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11919 return (0); 11920 break; 11921 default: 11922 return (0); 11923 } 11924 return (1); 11925} 11926 11927static int 11928ctl_scsiio(struct ctl_scsiio *ctsio) 11929{ 11930 int retval; 11931 const struct ctl_cmd_entry *entry; 11932 11933 retval = CTL_RETVAL_COMPLETE; 11934 11935 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11936 11937 entry = ctl_get_cmd_entry(ctsio, NULL); 11938 11939 /* 11940 * If this I/O has been aborted, just send it straight to 11941 * ctl_done() without executing it. 11942 */ 11943 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11944 ctl_done((union ctl_io *)ctsio); 11945 goto bailout; 11946 } 11947 11948 /* 11949 * All the checks should have been handled by ctl_scsiio_precheck(). 11950 * We should be clear now to just execute the I/O. 11951 */ 11952 retval = entry->execute(ctsio); 11953 11954bailout: 11955 return (retval); 11956} 11957 11958/* 11959 * Since we only implement one target right now, a bus reset simply resets 11960 * our single target. 11961 */ 11962static int 11963ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11964{ 11965 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11966} 11967 11968static int 11969ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11970 ctl_ua_type ua_type) 11971{ 11972 struct ctl_lun *lun; 11973 int retval; 11974 11975 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11976 union ctl_ha_msg msg_info; 11977 11978 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11979 msg_info.hdr.nexus = io->io_hdr.nexus; 11980 if (ua_type==CTL_UA_TARG_RESET) 11981 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11982 else 11983 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11984 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11985 msg_info.hdr.original_sc = NULL; 11986 msg_info.hdr.serializing_sc = NULL; 11987 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11988 (void *)&msg_info, sizeof(msg_info), 0)) { 11989 } 11990 } 11991 retval = 0; 11992 11993 mtx_lock(&ctl_softc->ctl_lock); 11994 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11995 retval += ctl_lun_reset(lun, io, ua_type); 11996 mtx_unlock(&ctl_softc->ctl_lock); 11997 11998 return (retval); 11999} 12000 12001/* 12002 * The LUN should always be set. The I/O is optional, and is used to 12003 * distinguish between I/Os sent by this initiator, and by other 12004 * initiators. We set unit attention for initiators other than this one. 12005 * SAM-3 is vague on this point. It does say that a unit attention should 12006 * be established for other initiators when a LUN is reset (see section 12007 * 5.7.3), but it doesn't specifically say that the unit attention should 12008 * be established for this particular initiator when a LUN is reset. Here 12009 * is the relevant text, from SAM-3 rev 8: 12010 * 12011 * 5.7.2 When a SCSI initiator port aborts its own tasks 12012 * 12013 * When a SCSI initiator port causes its own task(s) to be aborted, no 12014 * notification that the task(s) have been aborted shall be returned to 12015 * the SCSI initiator port other than the completion response for the 12016 * command or task management function action that caused the task(s) to 12017 * be aborted and notification(s) associated with related effects of the 12018 * action (e.g., a reset unit attention condition). 12019 * 12020 * XXX KDM for now, we're setting unit attention for all initiators. 12021 */ 12022static int 12023ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12024{ 12025 union ctl_io *xio; 12026#if 0 12027 uint32_t initindex; 12028#endif 12029 int i; 12030 12031 mtx_lock(&lun->lun_lock); 12032 /* 12033 * Run through the OOA queue and abort each I/O. 12034 */ 12035#if 0 12036 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12037#endif 12038 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12039 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12040 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12041 } 12042 12043 /* 12044 * This version sets unit attention for every 12045 */ 12046#if 0 12047 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12048 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12049 if (initindex == i) 12050 continue; 12051 lun->pending_ua[i] |= ua_type; 12052 } 12053#endif 12054 12055 /* 12056 * A reset (any kind, really) clears reservations established with 12057 * RESERVE/RELEASE. It does not clear reservations established 12058 * with PERSISTENT RESERVE OUT, but we don't support that at the 12059 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12060 * reservations made with the RESERVE/RELEASE commands, because 12061 * those commands are obsolete in SPC-3. 12062 */ 12063 lun->flags &= ~CTL_LUN_RESERVED; 12064 12065 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12066#ifdef CTL_WITH_CA 12067 ctl_clear_mask(lun->have_ca, i); 12068#endif 12069 lun->pending_ua[i] |= ua_type; 12070 } 12071 mtx_unlock(&lun->lun_lock); 12072 12073 return (0); 12074} 12075 12076static void 12077ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12078 int other_sc) 12079{ 12080 union ctl_io *xio; 12081 12082 mtx_assert(&lun->lun_lock, MA_OWNED); 12083 12084 /* 12085 * Run through the OOA queue and attempt to find the given I/O. 12086 * The target port, initiator ID, tag type and tag number have to 12087 * match the values that we got from the initiator. If we have an 12088 * untagged command to abort, simply abort the first untagged command 12089 * we come to. We only allow one untagged command at a time of course. 12090 */ 12091 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12092 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12093 12094 if ((targ_port == UINT32_MAX || 12095 targ_port == xio->io_hdr.nexus.targ_port) && 12096 (init_id == UINT32_MAX || 12097 init_id == xio->io_hdr.nexus.initid.id)) { 12098 if (targ_port != xio->io_hdr.nexus.targ_port || 12099 init_id != xio->io_hdr.nexus.initid.id) 12100 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12101 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12102 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12103 union ctl_ha_msg msg_info; 12104 12105 msg_info.hdr.nexus = xio->io_hdr.nexus; 12106 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12107 msg_info.task.tag_num = xio->scsiio.tag_num; 12108 msg_info.task.tag_type = xio->scsiio.tag_type; 12109 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12110 msg_info.hdr.original_sc = NULL; 12111 msg_info.hdr.serializing_sc = NULL; 12112 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12113 (void *)&msg_info, sizeof(msg_info), 0); 12114 } 12115 } 12116 } 12117} 12118 12119static int 12120ctl_abort_task_set(union ctl_io *io) 12121{ 12122 struct ctl_softc *softc = control_softc; 12123 struct ctl_lun *lun; 12124 uint32_t targ_lun; 12125 12126 /* 12127 * Look up the LUN. 12128 */ 12129 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12130 mtx_lock(&softc->ctl_lock); 12131 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12132 lun = softc->ctl_luns[targ_lun]; 12133 else { 12134 mtx_unlock(&softc->ctl_lock); 12135 return (1); 12136 } 12137 12138 mtx_lock(&lun->lun_lock); 12139 mtx_unlock(&softc->ctl_lock); 12140 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12141 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12142 io->io_hdr.nexus.initid.id, 12143 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12144 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12145 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12146 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12147 } 12148 mtx_unlock(&lun->lun_lock); 12149 return (0); 12150} 12151 12152static int 12153ctl_i_t_nexus_reset(union ctl_io *io) 12154{ 12155 struct ctl_softc *softc = control_softc; 12156 struct ctl_lun *lun; 12157 uint32_t initindex, residx; 12158 12159 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12160 residx = ctl_get_resindex(&io->io_hdr.nexus); 12161 mtx_lock(&softc->ctl_lock); 12162 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12163 mtx_lock(&lun->lun_lock); 12164 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12165 io->io_hdr.nexus.initid.id, 12166 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12167#ifdef CTL_WITH_CA 12168 ctl_clear_mask(lun->have_ca, initindex); 12169#endif 12170 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12171 lun->flags &= ~CTL_LUN_RESERVED; 12172 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12173 mtx_unlock(&lun->lun_lock); 12174 } 12175 mtx_unlock(&softc->ctl_lock); 12176 return (0); 12177} 12178 12179static int 12180ctl_abort_task(union ctl_io *io) 12181{ 12182 union ctl_io *xio; 12183 struct ctl_lun *lun; 12184 struct ctl_softc *ctl_softc; 12185#if 0 12186 struct sbuf sb; 12187 char printbuf[128]; 12188#endif 12189 int found; 12190 uint32_t targ_lun; 12191 12192 ctl_softc = control_softc; 12193 found = 0; 12194 12195 /* 12196 * Look up the LUN. 12197 */ 12198 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12199 mtx_lock(&ctl_softc->ctl_lock); 12200 if ((targ_lun < CTL_MAX_LUNS) 12201 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12202 lun = ctl_softc->ctl_luns[targ_lun]; 12203 else { 12204 mtx_unlock(&ctl_softc->ctl_lock); 12205 return (1); 12206 } 12207 12208#if 0 12209 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12210 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12211#endif 12212 12213 mtx_lock(&lun->lun_lock); 12214 mtx_unlock(&ctl_softc->ctl_lock); 12215 /* 12216 * Run through the OOA queue and attempt to find the given I/O. 12217 * The target port, initiator ID, tag type and tag number have to 12218 * match the values that we got from the initiator. If we have an 12219 * untagged command to abort, simply abort the first untagged command 12220 * we come to. We only allow one untagged command at a time of course. 12221 */ 12222#if 0 12223 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12224#endif 12225 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12226 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12227#if 0 12228 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12229 12230 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12231 lun->lun, xio->scsiio.tag_num, 12232 xio->scsiio.tag_type, 12233 (xio->io_hdr.blocked_links.tqe_prev 12234 == NULL) ? "" : " BLOCKED", 12235 (xio->io_hdr.flags & 12236 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12237 (xio->io_hdr.flags & 12238 CTL_FLAG_ABORT) ? " ABORT" : "", 12239 (xio->io_hdr.flags & 12240 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12241 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12242 sbuf_finish(&sb); 12243 printf("%s\n", sbuf_data(&sb)); 12244#endif 12245 12246 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12247 && (xio->io_hdr.nexus.initid.id == 12248 io->io_hdr.nexus.initid.id)) { 12249 /* 12250 * If the abort says that the task is untagged, the 12251 * task in the queue must be untagged. Otherwise, 12252 * we just check to see whether the tag numbers 12253 * match. This is because the QLogic firmware 12254 * doesn't pass back the tag type in an abort 12255 * request. 12256 */ 12257#if 0 12258 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12259 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12260 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12261#endif 12262 /* 12263 * XXX KDM we've got problems with FC, because it 12264 * doesn't send down a tag type with aborts. So we 12265 * can only really go by the tag number... 12266 * This may cause problems with parallel SCSI. 12267 * Need to figure that out!! 12268 */ 12269 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12270 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12271 found = 1; 12272 if ((io->io_hdr.flags & 12273 CTL_FLAG_FROM_OTHER_SC) == 0 && 12274 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12275 union ctl_ha_msg msg_info; 12276 12277 io->io_hdr.flags |= 12278 CTL_FLAG_SENT_2OTHER_SC; 12279 msg_info.hdr.nexus = io->io_hdr.nexus; 12280 msg_info.task.task_action = 12281 CTL_TASK_ABORT_TASK; 12282 msg_info.task.tag_num = 12283 io->taskio.tag_num; 12284 msg_info.task.tag_type = 12285 io->taskio.tag_type; 12286 msg_info.hdr.msg_type = 12287 CTL_MSG_MANAGE_TASKS; 12288 msg_info.hdr.original_sc = NULL; 12289 msg_info.hdr.serializing_sc = NULL; 12290#if 0 12291 printf("Sent Abort to other side\n"); 12292#endif 12293 if (CTL_HA_STATUS_SUCCESS != 12294 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12295 (void *)&msg_info, 12296 sizeof(msg_info), 0)) { 12297 } 12298 } 12299#if 0 12300 printf("ctl_abort_task: found I/O to abort\n"); 12301#endif 12302 break; 12303 } 12304 } 12305 } 12306 mtx_unlock(&lun->lun_lock); 12307 12308 if (found == 0) { 12309 /* 12310 * This isn't really an error. It's entirely possible for 12311 * the abort and command completion to cross on the wire. 12312 * This is more of an informative/diagnostic error. 12313 */ 12314#if 0 12315 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12316 "%d:%d:%d:%d tag %d type %d\n", 12317 io->io_hdr.nexus.initid.id, 12318 io->io_hdr.nexus.targ_port, 12319 io->io_hdr.nexus.targ_target.id, 12320 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12321 io->taskio.tag_type); 12322#endif 12323 } 12324 return (0); 12325} 12326 12327static void 12328ctl_run_task(union ctl_io *io) 12329{ 12330 struct ctl_softc *ctl_softc = control_softc; 12331 int retval = 1; 12332 const char *task_desc; 12333 12334 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12335 12336 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12337 ("ctl_run_task: Unextected io_type %d\n", 12338 io->io_hdr.io_type)); 12339 12340 task_desc = ctl_scsi_task_string(&io->taskio); 12341 if (task_desc != NULL) { 12342#ifdef NEEDTOPORT 12343 csevent_log(CSC_CTL | CSC_SHELF_SW | 12344 CTL_TASK_REPORT, 12345 csevent_LogType_Trace, 12346 csevent_Severity_Information, 12347 csevent_AlertLevel_Green, 12348 csevent_FRU_Firmware, 12349 csevent_FRU_Unknown, 12350 "CTL: received task: %s",task_desc); 12351#endif 12352 } else { 12353#ifdef NEEDTOPORT 12354 csevent_log(CSC_CTL | CSC_SHELF_SW | 12355 CTL_TASK_REPORT, 12356 csevent_LogType_Trace, 12357 csevent_Severity_Information, 12358 csevent_AlertLevel_Green, 12359 csevent_FRU_Firmware, 12360 csevent_FRU_Unknown, 12361 "CTL: received unknown task " 12362 "type: %d (%#x)", 12363 io->taskio.task_action, 12364 io->taskio.task_action); 12365#endif 12366 } 12367 switch (io->taskio.task_action) { 12368 case CTL_TASK_ABORT_TASK: 12369 retval = ctl_abort_task(io); 12370 break; 12371 case CTL_TASK_ABORT_TASK_SET: 12372 case CTL_TASK_CLEAR_TASK_SET: 12373 retval = ctl_abort_task_set(io); 12374 break; 12375 case CTL_TASK_CLEAR_ACA: 12376 break; 12377 case CTL_TASK_I_T_NEXUS_RESET: 12378 retval = ctl_i_t_nexus_reset(io); 12379 break; 12380 case CTL_TASK_LUN_RESET: { 12381 struct ctl_lun *lun; 12382 uint32_t targ_lun; 12383 12384 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12385 mtx_lock(&ctl_softc->ctl_lock); 12386 if ((targ_lun < CTL_MAX_LUNS) 12387 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12388 lun = ctl_softc->ctl_luns[targ_lun]; 12389 else { 12390 mtx_unlock(&ctl_softc->ctl_lock); 12391 retval = 1; 12392 break; 12393 } 12394 12395 if (!(io->io_hdr.flags & 12396 CTL_FLAG_FROM_OTHER_SC)) { 12397 union ctl_ha_msg msg_info; 12398 12399 io->io_hdr.flags |= 12400 CTL_FLAG_SENT_2OTHER_SC; 12401 msg_info.hdr.msg_type = 12402 CTL_MSG_MANAGE_TASKS; 12403 msg_info.hdr.nexus = io->io_hdr.nexus; 12404 msg_info.task.task_action = 12405 CTL_TASK_LUN_RESET; 12406 msg_info.hdr.original_sc = NULL; 12407 msg_info.hdr.serializing_sc = NULL; 12408 if (CTL_HA_STATUS_SUCCESS != 12409 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12410 (void *)&msg_info, 12411 sizeof(msg_info), 0)) { 12412 } 12413 } 12414 12415 retval = ctl_lun_reset(lun, io, 12416 CTL_UA_LUN_RESET); 12417 mtx_unlock(&ctl_softc->ctl_lock); 12418 break; 12419 } 12420 case CTL_TASK_TARGET_RESET: 12421 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12422 break; 12423 case CTL_TASK_BUS_RESET: 12424 retval = ctl_bus_reset(ctl_softc, io); 12425 break; 12426 case CTL_TASK_PORT_LOGIN: 12427 break; 12428 case CTL_TASK_PORT_LOGOUT: 12429 break; 12430 default: 12431 printf("ctl_run_task: got unknown task management event %d\n", 12432 io->taskio.task_action); 12433 break; 12434 } 12435 if (retval == 0) 12436 io->io_hdr.status = CTL_SUCCESS; 12437 else 12438 io->io_hdr.status = CTL_ERROR; 12439 ctl_done(io); 12440} 12441 12442/* 12443 * For HA operation. Handle commands that come in from the other 12444 * controller. 12445 */ 12446static void 12447ctl_handle_isc(union ctl_io *io) 12448{ 12449 int free_io; 12450 struct ctl_lun *lun; 12451 struct ctl_softc *ctl_softc; 12452 uint32_t targ_lun; 12453 12454 ctl_softc = control_softc; 12455 12456 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12457 lun = ctl_softc->ctl_luns[targ_lun]; 12458 12459 switch (io->io_hdr.msg_type) { 12460 case CTL_MSG_SERIALIZE: 12461 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12462 break; 12463 case CTL_MSG_R2R: { 12464 const struct ctl_cmd_entry *entry; 12465 12466 /* 12467 * This is only used in SER_ONLY mode. 12468 */ 12469 free_io = 0; 12470 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12471 mtx_lock(&lun->lun_lock); 12472 if (ctl_scsiio_lun_check(ctl_softc, lun, 12473 entry, (struct ctl_scsiio *)io) != 0) { 12474 mtx_unlock(&lun->lun_lock); 12475 ctl_done(io); 12476 break; 12477 } 12478 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12479 mtx_unlock(&lun->lun_lock); 12480 ctl_enqueue_rtr(io); 12481 break; 12482 } 12483 case CTL_MSG_FINISH_IO: 12484 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12485 free_io = 0; 12486 ctl_done(io); 12487 } else { 12488 free_io = 1; 12489 mtx_lock(&lun->lun_lock); 12490 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12491 ooa_links); 12492 ctl_check_blocked(lun); 12493 mtx_unlock(&lun->lun_lock); 12494 } 12495 break; 12496 case CTL_MSG_PERS_ACTION: 12497 ctl_hndl_per_res_out_on_other_sc( 12498 (union ctl_ha_msg *)&io->presio.pr_msg); 12499 free_io = 1; 12500 break; 12501 case CTL_MSG_BAD_JUJU: 12502 free_io = 0; 12503 ctl_done(io); 12504 break; 12505 case CTL_MSG_DATAMOVE: 12506 /* Only used in XFER mode */ 12507 free_io = 0; 12508 ctl_datamove_remote(io); 12509 break; 12510 case CTL_MSG_DATAMOVE_DONE: 12511 /* Only used in XFER mode */ 12512 free_io = 0; 12513 io->scsiio.be_move_done(io); 12514 break; 12515 default: 12516 free_io = 1; 12517 printf("%s: Invalid message type %d\n", 12518 __func__, io->io_hdr.msg_type); 12519 break; 12520 } 12521 if (free_io) 12522 ctl_free_io(io); 12523 12524} 12525 12526 12527/* 12528 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12529 * there is no match. 12530 */ 12531static ctl_lun_error_pattern 12532ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12533{ 12534 const struct ctl_cmd_entry *entry; 12535 ctl_lun_error_pattern filtered_pattern, pattern; 12536 12537 pattern = desc->error_pattern; 12538 12539 /* 12540 * XXX KDM we need more data passed into this function to match a 12541 * custom pattern, and we actually need to implement custom pattern 12542 * matching. 12543 */ 12544 if (pattern & CTL_LUN_PAT_CMD) 12545 return (CTL_LUN_PAT_CMD); 12546 12547 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12548 return (CTL_LUN_PAT_ANY); 12549 12550 entry = ctl_get_cmd_entry(ctsio, NULL); 12551 12552 filtered_pattern = entry->pattern & pattern; 12553 12554 /* 12555 * If the user requested specific flags in the pattern (e.g. 12556 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12557 * flags. 12558 * 12559 * If the user did not specify any flags, it doesn't matter whether 12560 * or not the command supports the flags. 12561 */ 12562 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12563 (pattern & ~CTL_LUN_PAT_MASK)) 12564 return (CTL_LUN_PAT_NONE); 12565 12566 /* 12567 * If the user asked for a range check, see if the requested LBA 12568 * range overlaps with this command's LBA range. 12569 */ 12570 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12571 uint64_t lba1; 12572 uint64_t len1; 12573 ctl_action action; 12574 int retval; 12575 12576 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12577 if (retval != 0) 12578 return (CTL_LUN_PAT_NONE); 12579 12580 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12581 desc->lba_range.len); 12582 /* 12583 * A "pass" means that the LBA ranges don't overlap, so 12584 * this doesn't match the user's range criteria. 12585 */ 12586 if (action == CTL_ACTION_PASS) 12587 return (CTL_LUN_PAT_NONE); 12588 } 12589 12590 return (filtered_pattern); 12591} 12592 12593static void 12594ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12595{ 12596 struct ctl_error_desc *desc, *desc2; 12597 12598 mtx_assert(&lun->lun_lock, MA_OWNED); 12599 12600 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12601 ctl_lun_error_pattern pattern; 12602 /* 12603 * Check to see whether this particular command matches 12604 * the pattern in the descriptor. 12605 */ 12606 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12607 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12608 continue; 12609 12610 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12611 case CTL_LUN_INJ_ABORTED: 12612 ctl_set_aborted(&io->scsiio); 12613 break; 12614 case CTL_LUN_INJ_MEDIUM_ERR: 12615 ctl_set_medium_error(&io->scsiio); 12616 break; 12617 case CTL_LUN_INJ_UA: 12618 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12619 * OCCURRED */ 12620 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12621 break; 12622 case CTL_LUN_INJ_CUSTOM: 12623 /* 12624 * We're assuming the user knows what he is doing. 12625 * Just copy the sense information without doing 12626 * checks. 12627 */ 12628 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12629 ctl_min(sizeof(desc->custom_sense), 12630 sizeof(io->scsiio.sense_data))); 12631 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12632 io->scsiio.sense_len = SSD_FULL_SIZE; 12633 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12634 break; 12635 case CTL_LUN_INJ_NONE: 12636 default: 12637 /* 12638 * If this is an error injection type we don't know 12639 * about, clear the continuous flag (if it is set) 12640 * so it will get deleted below. 12641 */ 12642 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12643 break; 12644 } 12645 /* 12646 * By default, each error injection action is a one-shot 12647 */ 12648 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12649 continue; 12650 12651 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12652 12653 free(desc, M_CTL); 12654 } 12655} 12656 12657#ifdef CTL_IO_DELAY 12658static void 12659ctl_datamove_timer_wakeup(void *arg) 12660{ 12661 union ctl_io *io; 12662 12663 io = (union ctl_io *)arg; 12664 12665 ctl_datamove(io); 12666} 12667#endif /* CTL_IO_DELAY */ 12668 12669void 12670ctl_datamove(union ctl_io *io) 12671{ 12672 void (*fe_datamove)(union ctl_io *io); 12673 12674 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12675 12676 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12677 12678#ifdef CTL_TIME_IO 12679 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12680 char str[256]; 12681 char path_str[64]; 12682 struct sbuf sb; 12683 12684 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12685 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12686 12687 sbuf_cat(&sb, path_str); 12688 switch (io->io_hdr.io_type) { 12689 case CTL_IO_SCSI: 12690 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12691 sbuf_printf(&sb, "\n"); 12692 sbuf_cat(&sb, path_str); 12693 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12694 io->scsiio.tag_num, io->scsiio.tag_type); 12695 break; 12696 case CTL_IO_TASK: 12697 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12698 "Tag Type: %d\n", io->taskio.task_action, 12699 io->taskio.tag_num, io->taskio.tag_type); 12700 break; 12701 default: 12702 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12703 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12704 break; 12705 } 12706 sbuf_cat(&sb, path_str); 12707 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12708 (intmax_t)time_uptime - io->io_hdr.start_time); 12709 sbuf_finish(&sb); 12710 printf("%s", sbuf_data(&sb)); 12711 } 12712#endif /* CTL_TIME_IO */ 12713 12714#ifdef CTL_IO_DELAY 12715 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12716 struct ctl_lun *lun; 12717 12718 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12719 12720 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12721 } else { 12722 struct ctl_lun *lun; 12723 12724 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12725 if ((lun != NULL) 12726 && (lun->delay_info.datamove_delay > 0)) { 12727 struct callout *callout; 12728 12729 callout = (struct callout *)&io->io_hdr.timer_bytes; 12730 callout_init(callout, /*mpsafe*/ 1); 12731 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12732 callout_reset(callout, 12733 lun->delay_info.datamove_delay * hz, 12734 ctl_datamove_timer_wakeup, io); 12735 if (lun->delay_info.datamove_type == 12736 CTL_DELAY_TYPE_ONESHOT) 12737 lun->delay_info.datamove_delay = 0; 12738 return; 12739 } 12740 } 12741#endif 12742 12743 /* 12744 * This command has been aborted. Set the port status, so we fail 12745 * the data move. 12746 */ 12747 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12748 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12749 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12750 io->io_hdr.nexus.targ_port, 12751 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12752 io->io_hdr.nexus.targ_lun); 12753 io->io_hdr.port_status = 31337; 12754 /* 12755 * Note that the backend, in this case, will get the 12756 * callback in its context. In other cases it may get 12757 * called in the frontend's interrupt thread context. 12758 */ 12759 io->scsiio.be_move_done(io); 12760 return; 12761 } 12762 12763 /* 12764 * If we're in XFER mode and this I/O is from the other shelf 12765 * controller, we need to send the DMA to the other side to 12766 * actually transfer the data to/from the host. In serialize only 12767 * mode the transfer happens below CTL and ctl_datamove() is only 12768 * called on the machine that originally received the I/O. 12769 */ 12770 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12771 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12772 union ctl_ha_msg msg; 12773 uint32_t sg_entries_sent; 12774 int do_sg_copy; 12775 int i; 12776 12777 memset(&msg, 0, sizeof(msg)); 12778 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12779 msg.hdr.original_sc = io->io_hdr.original_sc; 12780 msg.hdr.serializing_sc = io; 12781 msg.hdr.nexus = io->io_hdr.nexus; 12782 msg.dt.flags = io->io_hdr.flags; 12783 /* 12784 * We convert everything into a S/G list here. We can't 12785 * pass by reference, only by value between controllers. 12786 * So we can't pass a pointer to the S/G list, only as many 12787 * S/G entries as we can fit in here. If it's possible for 12788 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12789 * then we need to break this up into multiple transfers. 12790 */ 12791 if (io->scsiio.kern_sg_entries == 0) { 12792 msg.dt.kern_sg_entries = 1; 12793 /* 12794 * If this is in cached memory, flush the cache 12795 * before we send the DMA request to the other 12796 * controller. We want to do this in either the 12797 * read or the write case. The read case is 12798 * straightforward. In the write case, we want to 12799 * make sure nothing is in the local cache that 12800 * could overwrite the DMAed data. 12801 */ 12802 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12803 /* 12804 * XXX KDM use bus_dmamap_sync() here. 12805 */ 12806 } 12807 12808 /* 12809 * Convert to a physical address if this is a 12810 * virtual address. 12811 */ 12812 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12813 msg.dt.sg_list[0].addr = 12814 io->scsiio.kern_data_ptr; 12815 } else { 12816 /* 12817 * XXX KDM use busdma here! 12818 */ 12819#if 0 12820 msg.dt.sg_list[0].addr = (void *) 12821 vtophys(io->scsiio.kern_data_ptr); 12822#endif 12823 } 12824 12825 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12826 do_sg_copy = 0; 12827 } else { 12828 struct ctl_sg_entry *sgl; 12829 12830 do_sg_copy = 1; 12831 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12832 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12833 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12834 /* 12835 * XXX KDM use bus_dmamap_sync() here. 12836 */ 12837 } 12838 } 12839 12840 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12841 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12842 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12843 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12844 msg.dt.sg_sequence = 0; 12845 12846 /* 12847 * Loop until we've sent all of the S/G entries. On the 12848 * other end, we'll recompose these S/G entries into one 12849 * contiguous list before passing it to the 12850 */ 12851 for (sg_entries_sent = 0; sg_entries_sent < 12852 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12853 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12854 sizeof(msg.dt.sg_list[0])), 12855 msg.dt.kern_sg_entries - sg_entries_sent); 12856 12857 if (do_sg_copy != 0) { 12858 struct ctl_sg_entry *sgl; 12859 int j; 12860 12861 sgl = (struct ctl_sg_entry *) 12862 io->scsiio.kern_data_ptr; 12863 /* 12864 * If this is in cached memory, flush the cache 12865 * before we send the DMA request to the other 12866 * controller. We want to do this in either 12867 * the * read or the write case. The read 12868 * case is straightforward. In the write 12869 * case, we want to make sure nothing is 12870 * in the local cache that could overwrite 12871 * the DMAed data. 12872 */ 12873 12874 for (i = sg_entries_sent, j = 0; 12875 i < msg.dt.cur_sg_entries; i++, j++) { 12876 if ((io->io_hdr.flags & 12877 CTL_FLAG_NO_DATASYNC) == 0) { 12878 /* 12879 * XXX KDM use bus_dmamap_sync() 12880 */ 12881 } 12882 if ((io->io_hdr.flags & 12883 CTL_FLAG_BUS_ADDR) == 0) { 12884 /* 12885 * XXX KDM use busdma. 12886 */ 12887#if 0 12888 msg.dt.sg_list[j].addr =(void *) 12889 vtophys(sgl[i].addr); 12890#endif 12891 } else { 12892 msg.dt.sg_list[j].addr = 12893 sgl[i].addr; 12894 } 12895 msg.dt.sg_list[j].len = sgl[i].len; 12896 } 12897 } 12898 12899 sg_entries_sent += msg.dt.cur_sg_entries; 12900 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12901 msg.dt.sg_last = 1; 12902 else 12903 msg.dt.sg_last = 0; 12904 12905 /* 12906 * XXX KDM drop and reacquire the lock here? 12907 */ 12908 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12909 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12910 /* 12911 * XXX do something here. 12912 */ 12913 } 12914 12915 msg.dt.sent_sg_entries = sg_entries_sent; 12916 } 12917 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12918 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12919 ctl_failover_io(io, /*have_lock*/ 0); 12920 12921 } else { 12922 12923 /* 12924 * Lookup the fe_datamove() function for this particular 12925 * front end. 12926 */ 12927 fe_datamove = 12928 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12929 12930 fe_datamove(io); 12931 } 12932} 12933 12934static void 12935ctl_send_datamove_done(union ctl_io *io, int have_lock) 12936{ 12937 union ctl_ha_msg msg; 12938 int isc_status; 12939 12940 memset(&msg, 0, sizeof(msg)); 12941 12942 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12943 msg.hdr.original_sc = io; 12944 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12945 msg.hdr.nexus = io->io_hdr.nexus; 12946 msg.hdr.status = io->io_hdr.status; 12947 msg.scsi.tag_num = io->scsiio.tag_num; 12948 msg.scsi.tag_type = io->scsiio.tag_type; 12949 msg.scsi.scsi_status = io->scsiio.scsi_status; 12950 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12951 sizeof(io->scsiio.sense_data)); 12952 msg.scsi.sense_len = io->scsiio.sense_len; 12953 msg.scsi.sense_residual = io->scsiio.sense_residual; 12954 msg.scsi.fetd_status = io->io_hdr.port_status; 12955 msg.scsi.residual = io->scsiio.residual; 12956 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12957 12958 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12959 ctl_failover_io(io, /*have_lock*/ have_lock); 12960 return; 12961 } 12962 12963 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12964 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12965 /* XXX do something if this fails */ 12966 } 12967 12968} 12969 12970/* 12971 * The DMA to the remote side is done, now we need to tell the other side 12972 * we're done so it can continue with its data movement. 12973 */ 12974static void 12975ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12976{ 12977 union ctl_io *io; 12978 12979 io = rq->context; 12980 12981 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12982 printf("%s: ISC DMA write failed with error %d", __func__, 12983 rq->ret); 12984 ctl_set_internal_failure(&io->scsiio, 12985 /*sks_valid*/ 1, 12986 /*retry_count*/ rq->ret); 12987 } 12988 12989 ctl_dt_req_free(rq); 12990 12991 /* 12992 * In this case, we had to malloc the memory locally. Free it. 12993 */ 12994 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12995 int i; 12996 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12997 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12998 } 12999 /* 13000 * The data is in local and remote memory, so now we need to send 13001 * status (good or back) back to the other side. 13002 */ 13003 ctl_send_datamove_done(io, /*have_lock*/ 0); 13004} 13005 13006/* 13007 * We've moved the data from the host/controller into local memory. Now we 13008 * need to push it over to the remote controller's memory. 13009 */ 13010static int 13011ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13012{ 13013 int retval; 13014 13015 retval = 0; 13016 13017 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13018 ctl_datamove_remote_write_cb); 13019 13020 return (retval); 13021} 13022 13023static void 13024ctl_datamove_remote_write(union ctl_io *io) 13025{ 13026 int retval; 13027 void (*fe_datamove)(union ctl_io *io); 13028 13029 /* 13030 * - Get the data from the host/HBA into local memory. 13031 * - DMA memory from the local controller to the remote controller. 13032 * - Send status back to the remote controller. 13033 */ 13034 13035 retval = ctl_datamove_remote_sgl_setup(io); 13036 if (retval != 0) 13037 return; 13038 13039 /* Switch the pointer over so the FETD knows what to do */ 13040 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13041 13042 /* 13043 * Use a custom move done callback, since we need to send completion 13044 * back to the other controller, not to the backend on this side. 13045 */ 13046 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13047 13048 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13049 13050 fe_datamove(io); 13051 13052 return; 13053 13054} 13055 13056static int 13057ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13058{ 13059#if 0 13060 char str[256]; 13061 char path_str[64]; 13062 struct sbuf sb; 13063#endif 13064 13065 /* 13066 * In this case, we had to malloc the memory locally. Free it. 13067 */ 13068 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13069 int i; 13070 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13071 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13072 } 13073 13074#if 0 13075 scsi_path_string(io, path_str, sizeof(path_str)); 13076 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13077 sbuf_cat(&sb, path_str); 13078 scsi_command_string(&io->scsiio, NULL, &sb); 13079 sbuf_printf(&sb, "\n"); 13080 sbuf_cat(&sb, path_str); 13081 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13082 io->scsiio.tag_num, io->scsiio.tag_type); 13083 sbuf_cat(&sb, path_str); 13084 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13085 io->io_hdr.flags, io->io_hdr.status); 13086 sbuf_finish(&sb); 13087 printk("%s", sbuf_data(&sb)); 13088#endif 13089 13090 13091 /* 13092 * The read is done, now we need to send status (good or bad) back 13093 * to the other side. 13094 */ 13095 ctl_send_datamove_done(io, /*have_lock*/ 0); 13096 13097 return (0); 13098} 13099 13100static void 13101ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13102{ 13103 union ctl_io *io; 13104 void (*fe_datamove)(union ctl_io *io); 13105 13106 io = rq->context; 13107 13108 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13109 printf("%s: ISC DMA read failed with error %d", __func__, 13110 rq->ret); 13111 ctl_set_internal_failure(&io->scsiio, 13112 /*sks_valid*/ 1, 13113 /*retry_count*/ rq->ret); 13114 } 13115 13116 ctl_dt_req_free(rq); 13117 13118 /* Switch the pointer over so the FETD knows what to do */ 13119 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13120 13121 /* 13122 * Use a custom move done callback, since we need to send completion 13123 * back to the other controller, not to the backend on this side. 13124 */ 13125 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13126 13127 /* XXX KDM add checks like the ones in ctl_datamove? */ 13128 13129 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13130 13131 fe_datamove(io); 13132} 13133 13134static int 13135ctl_datamove_remote_sgl_setup(union ctl_io *io) 13136{ 13137 struct ctl_sg_entry *local_sglist, *remote_sglist; 13138 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13139 struct ctl_softc *softc; 13140 int retval; 13141 int i; 13142 13143 retval = 0; 13144 softc = control_softc; 13145 13146 local_sglist = io->io_hdr.local_sglist; 13147 local_dma_sglist = io->io_hdr.local_dma_sglist; 13148 remote_sglist = io->io_hdr.remote_sglist; 13149 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13150 13151 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13152 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13153 local_sglist[i].len = remote_sglist[i].len; 13154 13155 /* 13156 * XXX Detect the situation where the RS-level I/O 13157 * redirector on the other side has already read the 13158 * data off of the AOR RS on this side, and 13159 * transferred it to remote (mirror) memory on the 13160 * other side. Since we already have the data in 13161 * memory here, we just need to use it. 13162 * 13163 * XXX KDM this can probably be removed once we 13164 * get the cache device code in and take the 13165 * current AOR implementation out. 13166 */ 13167#ifdef NEEDTOPORT 13168 if ((remote_sglist[i].addr >= 13169 (void *)vtophys(softc->mirr->addr)) 13170 && (remote_sglist[i].addr < 13171 ((void *)vtophys(softc->mirr->addr) + 13172 CacheMirrorOffset))) { 13173 local_sglist[i].addr = remote_sglist[i].addr - 13174 CacheMirrorOffset; 13175 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13176 CTL_FLAG_DATA_IN) 13177 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13178 } else { 13179 local_sglist[i].addr = remote_sglist[i].addr + 13180 CacheMirrorOffset; 13181 } 13182#endif 13183#if 0 13184 printf("%s: local %p, remote %p, len %d\n", 13185 __func__, local_sglist[i].addr, 13186 remote_sglist[i].addr, local_sglist[i].len); 13187#endif 13188 } 13189 } else { 13190 uint32_t len_to_go; 13191 13192 /* 13193 * In this case, we don't have automatically allocated 13194 * memory for this I/O on this controller. This typically 13195 * happens with internal CTL I/O -- e.g. inquiry, mode 13196 * sense, etc. Anything coming from RAIDCore will have 13197 * a mirror area available. 13198 */ 13199 len_to_go = io->scsiio.kern_data_len; 13200 13201 /* 13202 * Clear the no datasync flag, we have to use malloced 13203 * buffers. 13204 */ 13205 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13206 13207 /* 13208 * The difficult thing here is that the size of the various 13209 * S/G segments may be different than the size from the 13210 * remote controller. That'll make it harder when DMAing 13211 * the data back to the other side. 13212 */ 13213 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13214 sizeof(io->io_hdr.remote_sglist[0])) && 13215 (len_to_go > 0); i++) { 13216 local_sglist[i].len = ctl_min(len_to_go, 131072); 13217 CTL_SIZE_8B(local_dma_sglist[i].len, 13218 local_sglist[i].len); 13219 local_sglist[i].addr = 13220 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13221 13222 local_dma_sglist[i].addr = local_sglist[i].addr; 13223 13224 if (local_sglist[i].addr == NULL) { 13225 int j; 13226 13227 printf("malloc failed for %zd bytes!", 13228 local_dma_sglist[i].len); 13229 for (j = 0; j < i; j++) { 13230 free(local_sglist[j].addr, M_CTL); 13231 } 13232 ctl_set_internal_failure(&io->scsiio, 13233 /*sks_valid*/ 1, 13234 /*retry_count*/ 4857); 13235 retval = 1; 13236 goto bailout_error; 13237 13238 } 13239 /* XXX KDM do we need a sync here? */ 13240 13241 len_to_go -= local_sglist[i].len; 13242 } 13243 /* 13244 * Reset the number of S/G entries accordingly. The 13245 * original number of S/G entries is available in 13246 * rem_sg_entries. 13247 */ 13248 io->scsiio.kern_sg_entries = i; 13249 13250#if 0 13251 printf("%s: kern_sg_entries = %d\n", __func__, 13252 io->scsiio.kern_sg_entries); 13253 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13254 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13255 local_sglist[i].addr, local_sglist[i].len, 13256 local_dma_sglist[i].len); 13257#endif 13258 } 13259 13260 13261 return (retval); 13262 13263bailout_error: 13264 13265 ctl_send_datamove_done(io, /*have_lock*/ 0); 13266 13267 return (retval); 13268} 13269 13270static int 13271ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13272 ctl_ha_dt_cb callback) 13273{ 13274 struct ctl_ha_dt_req *rq; 13275 struct ctl_sg_entry *remote_sglist, *local_sglist; 13276 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13277 uint32_t local_used, remote_used, total_used; 13278 int retval; 13279 int i, j; 13280 13281 retval = 0; 13282 13283 rq = ctl_dt_req_alloc(); 13284 13285 /* 13286 * If we failed to allocate the request, and if the DMA didn't fail 13287 * anyway, set busy status. This is just a resource allocation 13288 * failure. 13289 */ 13290 if ((rq == NULL) 13291 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13292 ctl_set_busy(&io->scsiio); 13293 13294 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13295 13296 if (rq != NULL) 13297 ctl_dt_req_free(rq); 13298 13299 /* 13300 * The data move failed. We need to return status back 13301 * to the other controller. No point in trying to DMA 13302 * data to the remote controller. 13303 */ 13304 13305 ctl_send_datamove_done(io, /*have_lock*/ 0); 13306 13307 retval = 1; 13308 13309 goto bailout; 13310 } 13311 13312 local_sglist = io->io_hdr.local_sglist; 13313 local_dma_sglist = io->io_hdr.local_dma_sglist; 13314 remote_sglist = io->io_hdr.remote_sglist; 13315 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13316 local_used = 0; 13317 remote_used = 0; 13318 total_used = 0; 13319 13320 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13321 rq->ret = CTL_HA_STATUS_SUCCESS; 13322 rq->context = io; 13323 callback(rq); 13324 goto bailout; 13325 } 13326 13327 /* 13328 * Pull/push the data over the wire from/to the other controller. 13329 * This takes into account the possibility that the local and 13330 * remote sglists may not be identical in terms of the size of 13331 * the elements and the number of elements. 13332 * 13333 * One fundamental assumption here is that the length allocated for 13334 * both the local and remote sglists is identical. Otherwise, we've 13335 * essentially got a coding error of some sort. 13336 */ 13337 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13338 int isc_ret; 13339 uint32_t cur_len, dma_length; 13340 uint8_t *tmp_ptr; 13341 13342 rq->id = CTL_HA_DATA_CTL; 13343 rq->command = command; 13344 rq->context = io; 13345 13346 /* 13347 * Both pointers should be aligned. But it is possible 13348 * that the allocation length is not. They should both 13349 * also have enough slack left over at the end, though, 13350 * to round up to the next 8 byte boundary. 13351 */ 13352 cur_len = ctl_min(local_sglist[i].len - local_used, 13353 remote_sglist[j].len - remote_used); 13354 13355 /* 13356 * In this case, we have a size issue and need to decrease 13357 * the size, except in the case where we actually have less 13358 * than 8 bytes left. In that case, we need to increase 13359 * the DMA length to get the last bit. 13360 */ 13361 if ((cur_len & 0x7) != 0) { 13362 if (cur_len > 0x7) { 13363 cur_len = cur_len - (cur_len & 0x7); 13364 dma_length = cur_len; 13365 } else { 13366 CTL_SIZE_8B(dma_length, cur_len); 13367 } 13368 13369 } else 13370 dma_length = cur_len; 13371 13372 /* 13373 * If we had to allocate memory for this I/O, instead of using 13374 * the non-cached mirror memory, we'll need to flush the cache 13375 * before trying to DMA to the other controller. 13376 * 13377 * We could end up doing this multiple times for the same 13378 * segment if we have a larger local segment than remote 13379 * segment. That shouldn't be an issue. 13380 */ 13381 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13382 /* 13383 * XXX KDM use bus_dmamap_sync() here. 13384 */ 13385 } 13386 13387 rq->size = dma_length; 13388 13389 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13390 tmp_ptr += local_used; 13391 13392 /* Use physical addresses when talking to ISC hardware */ 13393 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13394 /* XXX KDM use busdma */ 13395#if 0 13396 rq->local = vtophys(tmp_ptr); 13397#endif 13398 } else 13399 rq->local = tmp_ptr; 13400 13401 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13402 tmp_ptr += remote_used; 13403 rq->remote = tmp_ptr; 13404 13405 rq->callback = NULL; 13406 13407 local_used += cur_len; 13408 if (local_used >= local_sglist[i].len) { 13409 i++; 13410 local_used = 0; 13411 } 13412 13413 remote_used += cur_len; 13414 if (remote_used >= remote_sglist[j].len) { 13415 j++; 13416 remote_used = 0; 13417 } 13418 total_used += cur_len; 13419 13420 if (total_used >= io->scsiio.kern_data_len) 13421 rq->callback = callback; 13422 13423 if ((rq->size & 0x7) != 0) { 13424 printf("%s: warning: size %d is not on 8b boundary\n", 13425 __func__, rq->size); 13426 } 13427 if (((uintptr_t)rq->local & 0x7) != 0) { 13428 printf("%s: warning: local %p not on 8b boundary\n", 13429 __func__, rq->local); 13430 } 13431 if (((uintptr_t)rq->remote & 0x7) != 0) { 13432 printf("%s: warning: remote %p not on 8b boundary\n", 13433 __func__, rq->local); 13434 } 13435#if 0 13436 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13437 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13438 rq->local, rq->remote, rq->size); 13439#endif 13440 13441 isc_ret = ctl_dt_single(rq); 13442 if (isc_ret == CTL_HA_STATUS_WAIT) 13443 continue; 13444 13445 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13446 rq->ret = CTL_HA_STATUS_SUCCESS; 13447 } else { 13448 rq->ret = isc_ret; 13449 } 13450 callback(rq); 13451 goto bailout; 13452 } 13453 13454bailout: 13455 return (retval); 13456 13457} 13458 13459static void 13460ctl_datamove_remote_read(union ctl_io *io) 13461{ 13462 int retval; 13463 int i; 13464 13465 /* 13466 * This will send an error to the other controller in the case of a 13467 * failure. 13468 */ 13469 retval = ctl_datamove_remote_sgl_setup(io); 13470 if (retval != 0) 13471 return; 13472 13473 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13474 ctl_datamove_remote_read_cb); 13475 if ((retval != 0) 13476 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13477 /* 13478 * Make sure we free memory if there was an error.. The 13479 * ctl_datamove_remote_xfer() function will send the 13480 * datamove done message, or call the callback with an 13481 * error if there is a problem. 13482 */ 13483 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13484 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13485 } 13486 13487 return; 13488} 13489 13490/* 13491 * Process a datamove request from the other controller. This is used for 13492 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13493 * first. Once that is complete, the data gets DMAed into the remote 13494 * controller's memory. For reads, we DMA from the remote controller's 13495 * memory into our memory first, and then move it out to the FETD. 13496 */ 13497static void 13498ctl_datamove_remote(union ctl_io *io) 13499{ 13500 struct ctl_softc *softc; 13501 13502 softc = control_softc; 13503 13504 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13505 13506 /* 13507 * Note that we look for an aborted I/O here, but don't do some of 13508 * the other checks that ctl_datamove() normally does. 13509 * We don't need to run the datamove delay code, since that should 13510 * have been done if need be on the other controller. 13511 */ 13512 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13513 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13514 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13515 io->io_hdr.nexus.targ_port, 13516 io->io_hdr.nexus.targ_target.id, 13517 io->io_hdr.nexus.targ_lun); 13518 io->io_hdr.port_status = 31338; 13519 ctl_send_datamove_done(io, /*have_lock*/ 0); 13520 return; 13521 } 13522 13523 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13524 ctl_datamove_remote_write(io); 13525 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13526 ctl_datamove_remote_read(io); 13527 } else { 13528 union ctl_ha_msg msg; 13529 struct scsi_sense_data *sense; 13530 uint8_t sks[3]; 13531 int retry_count; 13532 13533 memset(&msg, 0, sizeof(msg)); 13534 13535 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13536 msg.hdr.status = CTL_SCSI_ERROR; 13537 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13538 13539 retry_count = 4243; 13540 13541 sense = &msg.scsi.sense_data; 13542 sks[0] = SSD_SCS_VALID; 13543 sks[1] = (retry_count >> 8) & 0xff; 13544 sks[2] = retry_count & 0xff; 13545 13546 /* "Internal target failure" */ 13547 scsi_set_sense_data(sense, 13548 /*sense_format*/ SSD_TYPE_NONE, 13549 /*current_error*/ 1, 13550 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13551 /*asc*/ 0x44, 13552 /*ascq*/ 0x00, 13553 /*type*/ SSD_ELEM_SKS, 13554 /*size*/ sizeof(sks), 13555 /*data*/ sks, 13556 SSD_ELEM_NONE); 13557 13558 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13559 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13560 ctl_failover_io(io, /*have_lock*/ 1); 13561 return; 13562 } 13563 13564 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13565 CTL_HA_STATUS_SUCCESS) { 13566 /* XXX KDM what to do if this fails? */ 13567 } 13568 return; 13569 } 13570 13571} 13572 13573static int 13574ctl_process_done(union ctl_io *io) 13575{ 13576 struct ctl_lun *lun; 13577 struct ctl_softc *ctl_softc; 13578 void (*fe_done)(union ctl_io *io); 13579 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13580 13581 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13582 13583 fe_done = 13584 control_softc->ctl_ports[targ_port]->fe_done; 13585 13586#ifdef CTL_TIME_IO 13587 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13588 char str[256]; 13589 char path_str[64]; 13590 struct sbuf sb; 13591 13592 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13593 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13594 13595 sbuf_cat(&sb, path_str); 13596 switch (io->io_hdr.io_type) { 13597 case CTL_IO_SCSI: 13598 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13599 sbuf_printf(&sb, "\n"); 13600 sbuf_cat(&sb, path_str); 13601 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13602 io->scsiio.tag_num, io->scsiio.tag_type); 13603 break; 13604 case CTL_IO_TASK: 13605 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13606 "Tag Type: %d\n", io->taskio.task_action, 13607 io->taskio.tag_num, io->taskio.tag_type); 13608 break; 13609 default: 13610 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13611 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13612 break; 13613 } 13614 sbuf_cat(&sb, path_str); 13615 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13616 (intmax_t)time_uptime - io->io_hdr.start_time); 13617 sbuf_finish(&sb); 13618 printf("%s", sbuf_data(&sb)); 13619 } 13620#endif /* CTL_TIME_IO */ 13621 13622 switch (io->io_hdr.io_type) { 13623 case CTL_IO_SCSI: 13624 break; 13625 case CTL_IO_TASK: 13626 if (bootverbose || verbose > 0) 13627 ctl_io_error_print(io, NULL); 13628 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13629 ctl_free_io(io); 13630 else 13631 fe_done(io); 13632 return (CTL_RETVAL_COMPLETE); 13633 break; 13634 default: 13635 printf("ctl_process_done: invalid io type %d\n", 13636 io->io_hdr.io_type); 13637 panic("ctl_process_done: invalid io type %d\n", 13638 io->io_hdr.io_type); 13639 break; /* NOTREACHED */ 13640 } 13641 13642 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13643 if (lun == NULL) { 13644 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13645 io->io_hdr.nexus.targ_mapped_lun)); 13646 fe_done(io); 13647 goto bailout; 13648 } 13649 ctl_softc = lun->ctl_softc; 13650 13651 mtx_lock(&lun->lun_lock); 13652 13653 /* 13654 * Check to see if we have any errors to inject here. We only 13655 * inject errors for commands that don't already have errors set. 13656 */ 13657 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13658 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13659 ctl_inject_error(lun, io); 13660 13661 /* 13662 * XXX KDM how do we treat commands that aren't completed 13663 * successfully? 13664 * 13665 * XXX KDM should we also track I/O latency? 13666 */ 13667 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13668 io->io_hdr.io_type == CTL_IO_SCSI) { 13669#ifdef CTL_TIME_IO 13670 struct bintime cur_bt; 13671#endif 13672 int type; 13673 13674 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13675 CTL_FLAG_DATA_IN) 13676 type = CTL_STATS_READ; 13677 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13678 CTL_FLAG_DATA_OUT) 13679 type = CTL_STATS_WRITE; 13680 else 13681 type = CTL_STATS_NO_IO; 13682 13683 lun->stats.ports[targ_port].bytes[type] += 13684 io->scsiio.kern_total_len; 13685 lun->stats.ports[targ_port].operations[type]++; 13686#ifdef CTL_TIME_IO 13687 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13688 &io->io_hdr.dma_bt); 13689 lun->stats.ports[targ_port].num_dmas[type] += 13690 io->io_hdr.num_dmas; 13691 getbintime(&cur_bt); 13692 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13693 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13694#endif 13695 } 13696 13697 /* 13698 * Remove this from the OOA queue. 13699 */ 13700 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13701 13702 /* 13703 * Run through the blocked queue on this LUN and see if anything 13704 * has become unblocked, now that this transaction is done. 13705 */ 13706 ctl_check_blocked(lun); 13707 13708 /* 13709 * If the LUN has been invalidated, free it if there is nothing 13710 * left on its OOA queue. 13711 */ 13712 if ((lun->flags & CTL_LUN_INVALID) 13713 && TAILQ_EMPTY(&lun->ooa_queue)) { 13714 mtx_unlock(&lun->lun_lock); 13715 mtx_lock(&ctl_softc->ctl_lock); 13716 ctl_free_lun(lun); 13717 mtx_unlock(&ctl_softc->ctl_lock); 13718 } else 13719 mtx_unlock(&lun->lun_lock); 13720 13721 /* 13722 * If this command has been aborted, make sure we set the status 13723 * properly. The FETD is responsible for freeing the I/O and doing 13724 * whatever it needs to do to clean up its state. 13725 */ 13726 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13727 ctl_set_task_aborted(&io->scsiio); 13728 13729 /* 13730 * We print out status for every task management command. For SCSI 13731 * commands, we filter out any unit attention errors; they happen 13732 * on every boot, and would clutter up the log. Note: task 13733 * management commands aren't printed here, they are printed above, 13734 * since they should never even make it down here. 13735 */ 13736 switch (io->io_hdr.io_type) { 13737 case CTL_IO_SCSI: { 13738 int error_code, sense_key, asc, ascq; 13739 13740 sense_key = 0; 13741 13742 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13743 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13744 /* 13745 * Since this is just for printing, no need to 13746 * show errors here. 13747 */ 13748 scsi_extract_sense_len(&io->scsiio.sense_data, 13749 io->scsiio.sense_len, 13750 &error_code, 13751 &sense_key, 13752 &asc, 13753 &ascq, 13754 /*show_errors*/ 0); 13755 } 13756 13757 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13758 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13759 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13760 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13761 13762 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13763 ctl_softc->skipped_prints++; 13764 } else { 13765 uint32_t skipped_prints; 13766 13767 skipped_prints = ctl_softc->skipped_prints; 13768 13769 ctl_softc->skipped_prints = 0; 13770 ctl_softc->last_print_jiffies = time_uptime; 13771 13772 if (skipped_prints > 0) { 13773#ifdef NEEDTOPORT 13774 csevent_log(CSC_CTL | CSC_SHELF_SW | 13775 CTL_ERROR_REPORT, 13776 csevent_LogType_Trace, 13777 csevent_Severity_Information, 13778 csevent_AlertLevel_Green, 13779 csevent_FRU_Firmware, 13780 csevent_FRU_Unknown, 13781 "High CTL error volume, %d prints " 13782 "skipped", skipped_prints); 13783#endif 13784 } 13785 if (bootverbose || verbose > 0) 13786 ctl_io_error_print(io, NULL); 13787 } 13788 } 13789 break; 13790 } 13791 case CTL_IO_TASK: 13792 if (bootverbose || verbose > 0) 13793 ctl_io_error_print(io, NULL); 13794 break; 13795 default: 13796 break; 13797 } 13798 13799 /* 13800 * Tell the FETD or the other shelf controller we're done with this 13801 * command. Note that only SCSI commands get to this point. Task 13802 * management commands are completed above. 13803 * 13804 * We only send status to the other controller if we're in XFER 13805 * mode. In SER_ONLY mode, the I/O is done on the controller that 13806 * received the I/O (from CTL's perspective), and so the status is 13807 * generated there. 13808 * 13809 * XXX KDM if we hold the lock here, we could cause a deadlock 13810 * if the frontend comes back in in this context to queue 13811 * something. 13812 */ 13813 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13814 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13815 union ctl_ha_msg msg; 13816 13817 memset(&msg, 0, sizeof(msg)); 13818 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13819 msg.hdr.original_sc = io->io_hdr.original_sc; 13820 msg.hdr.nexus = io->io_hdr.nexus; 13821 msg.hdr.status = io->io_hdr.status; 13822 msg.scsi.scsi_status = io->scsiio.scsi_status; 13823 msg.scsi.tag_num = io->scsiio.tag_num; 13824 msg.scsi.tag_type = io->scsiio.tag_type; 13825 msg.scsi.sense_len = io->scsiio.sense_len; 13826 msg.scsi.sense_residual = io->scsiio.sense_residual; 13827 msg.scsi.residual = io->scsiio.residual; 13828 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13829 sizeof(io->scsiio.sense_data)); 13830 /* 13831 * We copy this whether or not this is an I/O-related 13832 * command. Otherwise, we'd have to go and check to see 13833 * whether it's a read/write command, and it really isn't 13834 * worth it. 13835 */ 13836 memcpy(&msg.scsi.lbalen, 13837 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13838 sizeof(msg.scsi.lbalen)); 13839 13840 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13841 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13842 /* XXX do something here */ 13843 } 13844 13845 ctl_free_io(io); 13846 } else 13847 fe_done(io); 13848 13849bailout: 13850 13851 return (CTL_RETVAL_COMPLETE); 13852} 13853 13854#ifdef CTL_WITH_CA 13855/* 13856 * Front end should call this if it doesn't do autosense. When the request 13857 * sense comes back in from the initiator, we'll dequeue this and send it. 13858 */ 13859int 13860ctl_queue_sense(union ctl_io *io) 13861{ 13862 struct ctl_lun *lun; 13863 struct ctl_softc *ctl_softc; 13864 uint32_t initidx, targ_lun; 13865 13866 ctl_softc = control_softc; 13867 13868 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13869 13870 /* 13871 * LUN lookup will likely move to the ctl_work_thread() once we 13872 * have our new queueing infrastructure (that doesn't put things on 13873 * a per-LUN queue initially). That is so that we can handle 13874 * things like an INQUIRY to a LUN that we don't have enabled. We 13875 * can't deal with that right now. 13876 */ 13877 mtx_lock(&ctl_softc->ctl_lock); 13878 13879 /* 13880 * If we don't have a LUN for this, just toss the sense 13881 * information. 13882 */ 13883 targ_lun = io->io_hdr.nexus.targ_lun; 13884 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13885 if ((targ_lun < CTL_MAX_LUNS) 13886 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13887 lun = ctl_softc->ctl_luns[targ_lun]; 13888 else 13889 goto bailout; 13890 13891 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13892 13893 mtx_lock(&lun->lun_lock); 13894 /* 13895 * Already have CA set for this LUN...toss the sense information. 13896 */ 13897 if (ctl_is_set(lun->have_ca, initidx)) { 13898 mtx_unlock(&lun->lun_lock); 13899 goto bailout; 13900 } 13901 13902 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13903 ctl_min(sizeof(lun->pending_sense[initidx]), 13904 sizeof(io->scsiio.sense_data))); 13905 ctl_set_mask(lun->have_ca, initidx); 13906 mtx_unlock(&lun->lun_lock); 13907 13908bailout: 13909 mtx_unlock(&ctl_softc->ctl_lock); 13910 13911 ctl_free_io(io); 13912 13913 return (CTL_RETVAL_COMPLETE); 13914} 13915#endif 13916 13917/* 13918 * Primary command inlet from frontend ports. All SCSI and task I/O 13919 * requests must go through this function. 13920 */ 13921int 13922ctl_queue(union ctl_io *io) 13923{ 13924 struct ctl_softc *ctl_softc; 13925 13926 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13927 13928 ctl_softc = control_softc; 13929 13930#ifdef CTL_TIME_IO 13931 io->io_hdr.start_time = time_uptime; 13932 getbintime(&io->io_hdr.start_bt); 13933#endif /* CTL_TIME_IO */ 13934 13935 /* Map FE-specific LUN ID into global one. */ 13936 io->io_hdr.nexus.targ_mapped_lun = 13937 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13938 13939 switch (io->io_hdr.io_type) { 13940 case CTL_IO_SCSI: 13941 case CTL_IO_TASK: 13942 ctl_enqueue_incoming(io); 13943 break; 13944 default: 13945 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13946 return (EINVAL); 13947 } 13948 13949 return (CTL_RETVAL_COMPLETE); 13950} 13951 13952#ifdef CTL_IO_DELAY 13953static void 13954ctl_done_timer_wakeup(void *arg) 13955{ 13956 union ctl_io *io; 13957 13958 io = (union ctl_io *)arg; 13959 ctl_done(io); 13960} 13961#endif /* CTL_IO_DELAY */ 13962 13963void 13964ctl_done(union ctl_io *io) 13965{ 13966 struct ctl_softc *ctl_softc; 13967 13968 ctl_softc = control_softc; 13969 13970 /* 13971 * Enable this to catch duplicate completion issues. 13972 */ 13973#if 0 13974 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13975 printf("%s: type %d msg %d cdb %x iptl: " 13976 "%d:%d:%d:%d tag 0x%04x " 13977 "flag %#x status %x\n", 13978 __func__, 13979 io->io_hdr.io_type, 13980 io->io_hdr.msg_type, 13981 io->scsiio.cdb[0], 13982 io->io_hdr.nexus.initid.id, 13983 io->io_hdr.nexus.targ_port, 13984 io->io_hdr.nexus.targ_target.id, 13985 io->io_hdr.nexus.targ_lun, 13986 (io->io_hdr.io_type == 13987 CTL_IO_TASK) ? 13988 io->taskio.tag_num : 13989 io->scsiio.tag_num, 13990 io->io_hdr.flags, 13991 io->io_hdr.status); 13992 } else 13993 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13994#endif 13995 13996 /* 13997 * This is an internal copy of an I/O, and should not go through 13998 * the normal done processing logic. 13999 */ 14000 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14001 return; 14002 14003 /* 14004 * We need to send a msg to the serializing shelf to finish the IO 14005 * as well. We don't send a finish message to the other shelf if 14006 * this is a task management command. Task management commands 14007 * aren't serialized in the OOA queue, but rather just executed on 14008 * both shelf controllers for commands that originated on that 14009 * controller. 14010 */ 14011 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14012 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14013 union ctl_ha_msg msg_io; 14014 14015 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14016 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14017 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14018 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14019 } 14020 /* continue on to finish IO */ 14021 } 14022#ifdef CTL_IO_DELAY 14023 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14024 struct ctl_lun *lun; 14025 14026 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14027 14028 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14029 } else { 14030 struct ctl_lun *lun; 14031 14032 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14033 14034 if ((lun != NULL) 14035 && (lun->delay_info.done_delay > 0)) { 14036 struct callout *callout; 14037 14038 callout = (struct callout *)&io->io_hdr.timer_bytes; 14039 callout_init(callout, /*mpsafe*/ 1); 14040 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14041 callout_reset(callout, 14042 lun->delay_info.done_delay * hz, 14043 ctl_done_timer_wakeup, io); 14044 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14045 lun->delay_info.done_delay = 0; 14046 return; 14047 } 14048 } 14049#endif /* CTL_IO_DELAY */ 14050 14051 ctl_enqueue_done(io); 14052} 14053 14054int 14055ctl_isc(struct ctl_scsiio *ctsio) 14056{ 14057 struct ctl_lun *lun; 14058 int retval; 14059 14060 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14061 14062 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14063 14064 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14065 14066 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14067 14068 return (retval); 14069} 14070 14071 14072static void 14073ctl_work_thread(void *arg) 14074{ 14075 struct ctl_thread *thr = (struct ctl_thread *)arg; 14076 struct ctl_softc *softc = thr->ctl_softc; 14077 union ctl_io *io; 14078 int retval; 14079 14080 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14081 14082 for (;;) { 14083 retval = 0; 14084 14085 /* 14086 * We handle the queues in this order: 14087 * - ISC 14088 * - done queue (to free up resources, unblock other commands) 14089 * - RtR queue 14090 * - incoming queue 14091 * 14092 * If those queues are empty, we break out of the loop and 14093 * go to sleep. 14094 */ 14095 mtx_lock(&thr->queue_lock); 14096 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14097 if (io != NULL) { 14098 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14099 mtx_unlock(&thr->queue_lock); 14100 ctl_handle_isc(io); 14101 continue; 14102 } 14103 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14104 if (io != NULL) { 14105 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14106 /* clear any blocked commands, call fe_done */ 14107 mtx_unlock(&thr->queue_lock); 14108 retval = ctl_process_done(io); 14109 continue; 14110 } 14111 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14112 if (io != NULL) { 14113 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14114 mtx_unlock(&thr->queue_lock); 14115 if (io->io_hdr.io_type == CTL_IO_TASK) 14116 ctl_run_task(io); 14117 else 14118 ctl_scsiio_precheck(softc, &io->scsiio); 14119 continue; 14120 } 14121 if (!ctl_pause_rtr) { 14122 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14123 if (io != NULL) { 14124 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14125 mtx_unlock(&thr->queue_lock); 14126 retval = ctl_scsiio(&io->scsiio); 14127 if (retval != CTL_RETVAL_COMPLETE) 14128 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14129 continue; 14130 } 14131 } 14132 14133 /* Sleep until we have something to do. */ 14134 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14135 } 14136} 14137 14138static void 14139ctl_lun_thread(void *arg) 14140{ 14141 struct ctl_softc *softc = (struct ctl_softc *)arg; 14142 struct ctl_be_lun *be_lun; 14143 int retval; 14144 14145 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14146 14147 for (;;) { 14148 retval = 0; 14149 mtx_lock(&softc->ctl_lock); 14150 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14151 if (be_lun != NULL) { 14152 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14153 mtx_unlock(&softc->ctl_lock); 14154 ctl_create_lun(be_lun); 14155 continue; 14156 } 14157 14158 /* Sleep until we have something to do. */ 14159 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14160 PDROP | PRIBIO, "-", 0); 14161 } 14162} 14163 14164static void 14165ctl_enqueue_incoming(union ctl_io *io) 14166{ 14167 struct ctl_softc *softc = control_softc; 14168 struct ctl_thread *thr; 14169 u_int idx; 14170 14171 idx = (io->io_hdr.nexus.targ_port * 127 + 14172 io->io_hdr.nexus.initid.id) % worker_threads; 14173 thr = &softc->threads[idx]; 14174 mtx_lock(&thr->queue_lock); 14175 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14176 mtx_unlock(&thr->queue_lock); 14177 wakeup(thr); 14178} 14179 14180static void 14181ctl_enqueue_rtr(union ctl_io *io) 14182{ 14183 struct ctl_softc *softc = control_softc; 14184 struct ctl_thread *thr; 14185 14186 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14187 mtx_lock(&thr->queue_lock); 14188 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14189 mtx_unlock(&thr->queue_lock); 14190 wakeup(thr); 14191} 14192 14193static void 14194ctl_enqueue_done(union ctl_io *io) 14195{ 14196 struct ctl_softc *softc = control_softc; 14197 struct ctl_thread *thr; 14198 14199 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14200 mtx_lock(&thr->queue_lock); 14201 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14202 mtx_unlock(&thr->queue_lock); 14203 wakeup(thr); 14204} 14205 14206static void 14207ctl_enqueue_isc(union ctl_io *io) 14208{ 14209 struct ctl_softc *softc = control_softc; 14210 struct ctl_thread *thr; 14211 14212 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14213 mtx_lock(&thr->queue_lock); 14214 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14215 mtx_unlock(&thr->queue_lock); 14216 wakeup(thr); 14217} 14218 14219/* Initialization and failover */ 14220 14221void 14222ctl_init_isc_msg(void) 14223{ 14224 printf("CTL: Still calling this thing\n"); 14225} 14226 14227/* 14228 * Init component 14229 * Initializes component into configuration defined by bootMode 14230 * (see hasc-sv.c) 14231 * returns hasc_Status: 14232 * OK 14233 * ERROR - fatal error 14234 */ 14235static ctl_ha_comp_status 14236ctl_isc_init(struct ctl_ha_component *c) 14237{ 14238 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14239 14240 c->status = ret; 14241 return ret; 14242} 14243 14244/* Start component 14245 * Starts component in state requested. If component starts successfully, 14246 * it must set its own state to the requestrd state 14247 * When requested state is HASC_STATE_HA, the component may refine it 14248 * by adding _SLAVE or _MASTER flags. 14249 * Currently allowed state transitions are: 14250 * UNKNOWN->HA - initial startup 14251 * UNKNOWN->SINGLE - initial startup when no parter detected 14252 * HA->SINGLE - failover 14253 * returns ctl_ha_comp_status: 14254 * OK - component successfully started in requested state 14255 * FAILED - could not start the requested state, failover may 14256 * be possible 14257 * ERROR - fatal error detected, no future startup possible 14258 */ 14259static ctl_ha_comp_status 14260ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14261{ 14262 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14263 14264 printf("%s: go\n", __func__); 14265 14266 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14267 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14268 ctl_is_single = 0; 14269 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14270 != CTL_HA_STATUS_SUCCESS) { 14271 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14272 ret = CTL_HA_COMP_STATUS_ERROR; 14273 } 14274 } else if (CTL_HA_STATE_IS_HA(c->state) 14275 && CTL_HA_STATE_IS_SINGLE(state)){ 14276 // HA->SINGLE transition 14277 ctl_failover(); 14278 ctl_is_single = 1; 14279 } else { 14280 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14281 c->state, state); 14282 ret = CTL_HA_COMP_STATUS_ERROR; 14283 } 14284 if (CTL_HA_STATE_IS_SINGLE(state)) 14285 ctl_is_single = 1; 14286 14287 c->state = state; 14288 c->status = ret; 14289 return ret; 14290} 14291 14292/* 14293 * Quiesce component 14294 * The component must clear any error conditions (set status to OK) and 14295 * prepare itself to another Start call 14296 * returns ctl_ha_comp_status: 14297 * OK 14298 * ERROR 14299 */ 14300static ctl_ha_comp_status 14301ctl_isc_quiesce(struct ctl_ha_component *c) 14302{ 14303 int ret = CTL_HA_COMP_STATUS_OK; 14304 14305 ctl_pause_rtr = 1; 14306 c->status = ret; 14307 return ret; 14308} 14309 14310struct ctl_ha_component ctl_ha_component_ctlisc = 14311{ 14312 .name = "CTL ISC", 14313 .state = CTL_HA_STATE_UNKNOWN, 14314 .init = ctl_isc_init, 14315 .start = ctl_isc_start, 14316 .quiesce = ctl_isc_quiesce 14317}; 14318 14319/* 14320 * vim: ts=8 14321 */ 14322