ctl.c revision 272637
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 272637 2014-10-06 13:25:36Z 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*/0, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301}; 302 303 304/* 305 * XXX KDM move these into the softc. 306 */ 307static int rcv_sync_msg; 308static int persis_offset; 309static uint8_t ctl_pause_rtr; 310static int ctl_is_single = 1; 311static int index_to_aps_page; 312 313SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314static int worker_threads = -1; 315TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 316SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 317 &worker_threads, 1, "Number of worker threads"); 318static int verbose = 0; 319TUNABLE_INT("kern.cam.ctl.verbose", &verbose); 320SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 321 &verbose, 0, "Show SCSI errors returned to initiator"); 322 323/* 324 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 325 * 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->per_res[idx].registered == 0) 2996 continue; 2997 printf(" LUN %d port %d iid %d key " 2998 "%#jx\n", i, j, k, 2999 (uintmax_t)scsi_8btou64( 3000 lun->per_res[idx].res_key.key)); 3001 } 3002 } 3003 } 3004 printf("CTL Persistent Reservation information end\n"); 3005 printf("CTL Ports:\n"); 3006 STAILQ_FOREACH(port, &softc->port_list, links) { 3007 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3008 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3009 port->frontend->name, port->port_type, 3010 port->physical_port, port->virtual_port, 3011 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3012 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3013 if (port->wwpn_iid[j].in_use == 0 && 3014 port->wwpn_iid[j].wwpn == 0 && 3015 port->wwpn_iid[j].name == NULL) 3016 continue; 3017 3018 printf(" iid %u use %d WWPN %#jx '%s'\n", 3019 j, port->wwpn_iid[j].in_use, 3020 (uintmax_t)port->wwpn_iid[j].wwpn, 3021 port->wwpn_iid[j].name); 3022 } 3023 } 3024 printf("CTL Port information end\n"); 3025 mtx_unlock(&softc->ctl_lock); 3026 /* 3027 * XXX KDM calling this without a lock. We'd likely want 3028 * to drop the lock before calling the frontend's dump 3029 * routine anyway. 3030 */ 3031 printf("CTL Frontends:\n"); 3032 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3033 printf(" Frontend '%s'\n", fe->name); 3034 if (fe->fe_dump != NULL) 3035 fe->fe_dump(); 3036 } 3037 printf("CTL Frontend information end\n"); 3038 break; 3039 } 3040 case CTL_LUN_REQ: { 3041 struct ctl_lun_req *lun_req; 3042 struct ctl_backend_driver *backend; 3043 3044 lun_req = (struct ctl_lun_req *)addr; 3045 3046 backend = ctl_backend_find(lun_req->backend); 3047 if (backend == NULL) { 3048 lun_req->status = CTL_LUN_ERROR; 3049 snprintf(lun_req->error_str, 3050 sizeof(lun_req->error_str), 3051 "Backend \"%s\" not found.", 3052 lun_req->backend); 3053 break; 3054 } 3055 if (lun_req->num_be_args > 0) { 3056 lun_req->kern_be_args = ctl_copyin_args( 3057 lun_req->num_be_args, 3058 lun_req->be_args, 3059 lun_req->error_str, 3060 sizeof(lun_req->error_str)); 3061 if (lun_req->kern_be_args == NULL) { 3062 lun_req->status = CTL_LUN_ERROR; 3063 break; 3064 } 3065 } 3066 3067 retval = backend->ioctl(dev, cmd, addr, flag, td); 3068 3069 if (lun_req->num_be_args > 0) { 3070 ctl_copyout_args(lun_req->num_be_args, 3071 lun_req->kern_be_args); 3072 ctl_free_args(lun_req->num_be_args, 3073 lun_req->kern_be_args); 3074 } 3075 break; 3076 } 3077 case CTL_LUN_LIST: { 3078 struct sbuf *sb; 3079 struct ctl_lun *lun; 3080 struct ctl_lun_list *list; 3081 struct ctl_option *opt; 3082 3083 list = (struct ctl_lun_list *)addr; 3084 3085 /* 3086 * Allocate a fixed length sbuf here, based on the length 3087 * of the user's buffer. We could allocate an auto-extending 3088 * buffer, and then tell the user how much larger our 3089 * amount of data is than his buffer, but that presents 3090 * some problems: 3091 * 3092 * 1. The sbuf(9) routines use a blocking malloc, and so 3093 * we can't hold a lock while calling them with an 3094 * auto-extending buffer. 3095 * 3096 * 2. There is not currently a LUN reference counting 3097 * mechanism, outside of outstanding transactions on 3098 * the LUN's OOA queue. So a LUN could go away on us 3099 * while we're getting the LUN number, backend-specific 3100 * information, etc. Thus, given the way things 3101 * currently work, we need to hold the CTL lock while 3102 * grabbing LUN information. 3103 * 3104 * So, from the user's standpoint, the best thing to do is 3105 * allocate what he thinks is a reasonable buffer length, 3106 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3107 * double the buffer length and try again. (And repeat 3108 * that until he succeeds.) 3109 */ 3110 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3111 if (sb == NULL) { 3112 list->status = CTL_LUN_LIST_ERROR; 3113 snprintf(list->error_str, sizeof(list->error_str), 3114 "Unable to allocate %d bytes for LUN list", 3115 list->alloc_len); 3116 break; 3117 } 3118 3119 sbuf_printf(sb, "<ctllunlist>\n"); 3120 3121 mtx_lock(&softc->ctl_lock); 3122 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3123 mtx_lock(&lun->lun_lock); 3124 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3125 (uintmax_t)lun->lun); 3126 3127 /* 3128 * Bail out as soon as we see that we've overfilled 3129 * the buffer. 3130 */ 3131 if (retval != 0) 3132 break; 3133 3134 retval = sbuf_printf(sb, "\t<backend_type>%s" 3135 "</backend_type>\n", 3136 (lun->backend == NULL) ? "none" : 3137 lun->backend->name); 3138 3139 if (retval != 0) 3140 break; 3141 3142 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3143 lun->be_lun->lun_type); 3144 3145 if (retval != 0) 3146 break; 3147 3148 if (lun->backend == NULL) { 3149 retval = sbuf_printf(sb, "</lun>\n"); 3150 if (retval != 0) 3151 break; 3152 continue; 3153 } 3154 3155 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3156 (lun->be_lun->maxlba > 0) ? 3157 lun->be_lun->maxlba + 1 : 0); 3158 3159 if (retval != 0) 3160 break; 3161 3162 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3163 lun->be_lun->blocksize); 3164 3165 if (retval != 0) 3166 break; 3167 3168 retval = sbuf_printf(sb, "\t<serial_number>"); 3169 3170 if (retval != 0) 3171 break; 3172 3173 retval = ctl_sbuf_printf_esc(sb, 3174 lun->be_lun->serial_num); 3175 3176 if (retval != 0) 3177 break; 3178 3179 retval = sbuf_printf(sb, "</serial_number>\n"); 3180 3181 if (retval != 0) 3182 break; 3183 3184 retval = sbuf_printf(sb, "\t<device_id>"); 3185 3186 if (retval != 0) 3187 break; 3188 3189 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3190 3191 if (retval != 0) 3192 break; 3193 3194 retval = sbuf_printf(sb, "</device_id>\n"); 3195 3196 if (retval != 0) 3197 break; 3198 3199 if (lun->backend->lun_info != NULL) { 3200 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3201 if (retval != 0) 3202 break; 3203 } 3204 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3205 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3206 opt->name, opt->value, opt->name); 3207 if (retval != 0) 3208 break; 3209 } 3210 3211 retval = sbuf_printf(sb, "</lun>\n"); 3212 3213 if (retval != 0) 3214 break; 3215 mtx_unlock(&lun->lun_lock); 3216 } 3217 if (lun != NULL) 3218 mtx_unlock(&lun->lun_lock); 3219 mtx_unlock(&softc->ctl_lock); 3220 3221 if ((retval != 0) 3222 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3223 retval = 0; 3224 sbuf_delete(sb); 3225 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3226 snprintf(list->error_str, sizeof(list->error_str), 3227 "Out of space, %d bytes is too small", 3228 list->alloc_len); 3229 break; 3230 } 3231 3232 sbuf_finish(sb); 3233 3234 retval = copyout(sbuf_data(sb), list->lun_xml, 3235 sbuf_len(sb) + 1); 3236 3237 list->fill_len = sbuf_len(sb) + 1; 3238 list->status = CTL_LUN_LIST_OK; 3239 sbuf_delete(sb); 3240 break; 3241 } 3242 case CTL_ISCSI: { 3243 struct ctl_iscsi *ci; 3244 struct ctl_frontend *fe; 3245 3246 ci = (struct ctl_iscsi *)addr; 3247 3248 fe = ctl_frontend_find("iscsi"); 3249 if (fe == NULL) { 3250 ci->status = CTL_ISCSI_ERROR; 3251 snprintf(ci->error_str, sizeof(ci->error_str), 3252 "Frontend \"iscsi\" not found."); 3253 break; 3254 } 3255 3256 retval = fe->ioctl(dev, cmd, addr, flag, td); 3257 break; 3258 } 3259 case CTL_PORT_REQ: { 3260 struct ctl_req *req; 3261 struct ctl_frontend *fe; 3262 3263 req = (struct ctl_req *)addr; 3264 3265 fe = ctl_frontend_find(req->driver); 3266 if (fe == NULL) { 3267 req->status = CTL_LUN_ERROR; 3268 snprintf(req->error_str, sizeof(req->error_str), 3269 "Frontend \"%s\" not found.", req->driver); 3270 break; 3271 } 3272 if (req->num_args > 0) { 3273 req->kern_args = ctl_copyin_args(req->num_args, 3274 req->args, req->error_str, sizeof(req->error_str)); 3275 if (req->kern_args == NULL) { 3276 req->status = CTL_LUN_ERROR; 3277 break; 3278 } 3279 } 3280 3281 retval = fe->ioctl(dev, cmd, addr, flag, td); 3282 3283 if (req->num_args > 0) { 3284 ctl_copyout_args(req->num_args, req->kern_args); 3285 ctl_free_args(req->num_args, req->kern_args); 3286 } 3287 break; 3288 } 3289 case CTL_PORT_LIST: { 3290 struct sbuf *sb; 3291 struct ctl_port *port; 3292 struct ctl_lun_list *list; 3293 struct ctl_option *opt; 3294 3295 list = (struct ctl_lun_list *)addr; 3296 3297 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3298 if (sb == NULL) { 3299 list->status = CTL_LUN_LIST_ERROR; 3300 snprintf(list->error_str, sizeof(list->error_str), 3301 "Unable to allocate %d bytes for LUN list", 3302 list->alloc_len); 3303 break; 3304 } 3305 3306 sbuf_printf(sb, "<ctlportlist>\n"); 3307 3308 mtx_lock(&softc->ctl_lock); 3309 STAILQ_FOREACH(port, &softc->port_list, links) { 3310 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3311 (uintmax_t)port->targ_port); 3312 3313 /* 3314 * Bail out as soon as we see that we've overfilled 3315 * the buffer. 3316 */ 3317 if (retval != 0) 3318 break; 3319 3320 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3321 "</frontend_type>\n", port->frontend->name); 3322 if (retval != 0) 3323 break; 3324 3325 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3326 port->port_type); 3327 if (retval != 0) 3328 break; 3329 3330 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3331 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3332 if (retval != 0) 3333 break; 3334 3335 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3336 port->port_name); 3337 if (retval != 0) 3338 break; 3339 3340 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3341 port->physical_port); 3342 if (retval != 0) 3343 break; 3344 3345 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3346 port->virtual_port); 3347 if (retval != 0) 3348 break; 3349 3350 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3351 (uintmax_t)port->wwnn); 3352 if (retval != 0) 3353 break; 3354 3355 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3356 (uintmax_t)port->wwpn); 3357 if (retval != 0) 3358 break; 3359 3360 if (port->port_info != NULL) { 3361 retval = port->port_info(port->onoff_arg, sb); 3362 if (retval != 0) 3363 break; 3364 } 3365 STAILQ_FOREACH(opt, &port->options, links) { 3366 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3367 opt->name, opt->value, opt->name); 3368 if (retval != 0) 3369 break; 3370 } 3371 3372 retval = sbuf_printf(sb, "</targ_port>\n"); 3373 if (retval != 0) 3374 break; 3375 } 3376 mtx_unlock(&softc->ctl_lock); 3377 3378 if ((retval != 0) 3379 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3380 retval = 0; 3381 sbuf_delete(sb); 3382 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3383 snprintf(list->error_str, sizeof(list->error_str), 3384 "Out of space, %d bytes is too small", 3385 list->alloc_len); 3386 break; 3387 } 3388 3389 sbuf_finish(sb); 3390 3391 retval = copyout(sbuf_data(sb), list->lun_xml, 3392 sbuf_len(sb) + 1); 3393 3394 list->fill_len = sbuf_len(sb) + 1; 3395 list->status = CTL_LUN_LIST_OK; 3396 sbuf_delete(sb); 3397 break; 3398 } 3399 default: { 3400 /* XXX KDM should we fix this? */ 3401#if 0 3402 struct ctl_backend_driver *backend; 3403 unsigned int type; 3404 int found; 3405 3406 found = 0; 3407 3408 /* 3409 * We encode the backend type as the ioctl type for backend 3410 * ioctls. So parse it out here, and then search for a 3411 * backend of this type. 3412 */ 3413 type = _IOC_TYPE(cmd); 3414 3415 STAILQ_FOREACH(backend, &softc->be_list, links) { 3416 if (backend->type == type) { 3417 found = 1; 3418 break; 3419 } 3420 } 3421 if (found == 0) { 3422 printf("ctl: unknown ioctl command %#lx or backend " 3423 "%d\n", cmd, type); 3424 retval = EINVAL; 3425 break; 3426 } 3427 retval = backend->ioctl(dev, cmd, addr, flag, td); 3428#endif 3429 retval = ENOTTY; 3430 break; 3431 } 3432 } 3433 return (retval); 3434} 3435 3436uint32_t 3437ctl_get_initindex(struct ctl_nexus *nexus) 3438{ 3439 if (nexus->targ_port < CTL_MAX_PORTS) 3440 return (nexus->initid.id + 3441 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3442 else 3443 return (nexus->initid.id + 3444 ((nexus->targ_port - CTL_MAX_PORTS) * 3445 CTL_MAX_INIT_PER_PORT)); 3446} 3447 3448uint32_t 3449ctl_get_resindex(struct ctl_nexus *nexus) 3450{ 3451 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3452} 3453 3454uint32_t 3455ctl_port_idx(int port_num) 3456{ 3457 if (port_num < CTL_MAX_PORTS) 3458 return(port_num); 3459 else 3460 return(port_num - CTL_MAX_PORTS); 3461} 3462 3463static uint32_t 3464ctl_map_lun(int port_num, uint32_t lun_id) 3465{ 3466 struct ctl_port *port; 3467 3468 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3469 if (port == NULL) 3470 return (UINT32_MAX); 3471 if (port->lun_map == NULL) 3472 return (lun_id); 3473 return (port->lun_map(port->targ_lun_arg, lun_id)); 3474} 3475 3476static uint32_t 3477ctl_map_lun_back(int port_num, uint32_t lun_id) 3478{ 3479 struct ctl_port *port; 3480 uint32_t i; 3481 3482 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3483 if (port->lun_map == NULL) 3484 return (lun_id); 3485 for (i = 0; i < CTL_MAX_LUNS; i++) { 3486 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3487 return (i); 3488 } 3489 return (UINT32_MAX); 3490} 3491 3492/* 3493 * Note: This only works for bitmask sizes that are at least 32 bits, and 3494 * that are a power of 2. 3495 */ 3496int 3497ctl_ffz(uint32_t *mask, uint32_t size) 3498{ 3499 uint32_t num_chunks, num_pieces; 3500 int i, j; 3501 3502 num_chunks = (size >> 5); 3503 if (num_chunks == 0) 3504 num_chunks++; 3505 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3506 3507 for (i = 0; i < num_chunks; i++) { 3508 for (j = 0; j < num_pieces; j++) { 3509 if ((mask[i] & (1 << j)) == 0) 3510 return ((i << 5) + j); 3511 } 3512 } 3513 3514 return (-1); 3515} 3516 3517int 3518ctl_set_mask(uint32_t *mask, uint32_t bit) 3519{ 3520 uint32_t chunk, piece; 3521 3522 chunk = bit >> 5; 3523 piece = bit % (sizeof(uint32_t) * 8); 3524 3525 if ((mask[chunk] & (1 << piece)) != 0) 3526 return (-1); 3527 else 3528 mask[chunk] |= (1 << piece); 3529 3530 return (0); 3531} 3532 3533int 3534ctl_clear_mask(uint32_t *mask, uint32_t bit) 3535{ 3536 uint32_t chunk, piece; 3537 3538 chunk = bit >> 5; 3539 piece = bit % (sizeof(uint32_t) * 8); 3540 3541 if ((mask[chunk] & (1 << piece)) == 0) 3542 return (-1); 3543 else 3544 mask[chunk] &= ~(1 << piece); 3545 3546 return (0); 3547} 3548 3549int 3550ctl_is_set(uint32_t *mask, uint32_t bit) 3551{ 3552 uint32_t chunk, piece; 3553 3554 chunk = bit >> 5; 3555 piece = bit % (sizeof(uint32_t) * 8); 3556 3557 if ((mask[chunk] & (1 << piece)) == 0) 3558 return (0); 3559 else 3560 return (1); 3561} 3562 3563#ifdef unused 3564/* 3565 * The bus, target and lun are optional, they can be filled in later. 3566 * can_wait is used to determine whether we can wait on the malloc or not. 3567 */ 3568union ctl_io* 3569ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3570 uint32_t targ_lun, int can_wait) 3571{ 3572 union ctl_io *io; 3573 3574 if (can_wait) 3575 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3576 else 3577 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3578 3579 if (io != NULL) { 3580 io->io_hdr.io_type = io_type; 3581 io->io_hdr.targ_port = targ_port; 3582 /* 3583 * XXX KDM this needs to change/go away. We need to move 3584 * to a preallocated pool of ctl_scsiio structures. 3585 */ 3586 io->io_hdr.nexus.targ_target.id = targ_target; 3587 io->io_hdr.nexus.targ_lun = targ_lun; 3588 } 3589 3590 return (io); 3591} 3592 3593void 3594ctl_kfree_io(union ctl_io *io) 3595{ 3596 free(io, M_CTL); 3597} 3598#endif /* unused */ 3599 3600/* 3601 * ctl_softc, pool_type, total_ctl_io are passed in. 3602 * npool is passed out. 3603 */ 3604int 3605ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3606 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3607{ 3608 uint32_t i; 3609 union ctl_io *cur_io, *next_io; 3610 struct ctl_io_pool *pool; 3611 int retval; 3612 3613 retval = 0; 3614 3615 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3616 M_NOWAIT | M_ZERO); 3617 if (pool == NULL) { 3618 retval = ENOMEM; 3619 goto bailout; 3620 } 3621 3622 pool->type = pool_type; 3623 pool->ctl_softc = ctl_softc; 3624 3625 mtx_lock(&ctl_softc->pool_lock); 3626 pool->id = ctl_softc->cur_pool_id++; 3627 mtx_unlock(&ctl_softc->pool_lock); 3628 3629 pool->flags = CTL_POOL_FLAG_NONE; 3630 pool->refcount = 1; /* Reference for validity. */ 3631 STAILQ_INIT(&pool->free_queue); 3632 3633 /* 3634 * XXX KDM other options here: 3635 * - allocate a page at a time 3636 * - allocate one big chunk of memory. 3637 * Page allocation might work well, but would take a little more 3638 * tracking. 3639 */ 3640 for (i = 0; i < total_ctl_io; i++) { 3641 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3642 M_NOWAIT); 3643 if (cur_io == NULL) { 3644 retval = ENOMEM; 3645 break; 3646 } 3647 cur_io->io_hdr.pool = pool; 3648 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3649 pool->total_ctl_io++; 3650 pool->free_ctl_io++; 3651 } 3652 3653 if (retval != 0) { 3654 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3655 cur_io != NULL; cur_io = next_io) { 3656 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3657 links); 3658 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3659 ctl_io_hdr, links); 3660 free(cur_io, M_CTLIO); 3661 } 3662 3663 free(pool, M_CTL); 3664 goto bailout; 3665 } 3666 mtx_lock(&ctl_softc->pool_lock); 3667 ctl_softc->num_pools++; 3668 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3669 /* 3670 * Increment our usage count if this is an external consumer, so we 3671 * can't get unloaded until the external consumer (most likely a 3672 * FETD) unloads and frees his pool. 3673 * 3674 * XXX KDM will this increment the caller's module use count, or 3675 * mine? 3676 */ 3677#if 0 3678 if ((pool_type != CTL_POOL_EMERGENCY) 3679 && (pool_type != CTL_POOL_INTERNAL) 3680 && (pool_type != CTL_POOL_4OTHERSC)) 3681 MOD_INC_USE_COUNT; 3682#endif 3683 3684 mtx_unlock(&ctl_softc->pool_lock); 3685 3686 *npool = pool; 3687 3688bailout: 3689 3690 return (retval); 3691} 3692 3693static int 3694ctl_pool_acquire(struct ctl_io_pool *pool) 3695{ 3696 3697 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3698 3699 if (pool->flags & CTL_POOL_FLAG_INVALID) 3700 return (EINVAL); 3701 3702 pool->refcount++; 3703 3704 return (0); 3705} 3706 3707static void 3708ctl_pool_release(struct ctl_io_pool *pool) 3709{ 3710 struct ctl_softc *ctl_softc = pool->ctl_softc; 3711 union ctl_io *io; 3712 3713 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3714 3715 if (--pool->refcount != 0) 3716 return; 3717 3718 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3719 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3720 links); 3721 free(io, M_CTLIO); 3722 } 3723 3724 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3725 ctl_softc->num_pools--; 3726 3727 /* 3728 * XXX KDM will this decrement the caller's usage count or mine? 3729 */ 3730#if 0 3731 if ((pool->type != CTL_POOL_EMERGENCY) 3732 && (pool->type != CTL_POOL_INTERNAL) 3733 && (pool->type != CTL_POOL_4OTHERSC)) 3734 MOD_DEC_USE_COUNT; 3735#endif 3736 3737 free(pool, M_CTL); 3738} 3739 3740void 3741ctl_pool_free(struct ctl_io_pool *pool) 3742{ 3743 struct ctl_softc *ctl_softc; 3744 3745 if (pool == NULL) 3746 return; 3747 3748 ctl_softc = pool->ctl_softc; 3749 mtx_lock(&ctl_softc->pool_lock); 3750 pool->flags |= CTL_POOL_FLAG_INVALID; 3751 ctl_pool_release(pool); 3752 mtx_unlock(&ctl_softc->pool_lock); 3753} 3754 3755/* 3756 * This routine does not block (except for spinlocks of course). 3757 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3758 * possible. 3759 */ 3760union ctl_io * 3761ctl_alloc_io(void *pool_ref) 3762{ 3763 union ctl_io *io; 3764 struct ctl_softc *ctl_softc; 3765 struct ctl_io_pool *pool, *npool; 3766 struct ctl_io_pool *emergency_pool; 3767 3768 pool = (struct ctl_io_pool *)pool_ref; 3769 3770 if (pool == NULL) { 3771 printf("%s: pool is NULL\n", __func__); 3772 return (NULL); 3773 } 3774 3775 emergency_pool = NULL; 3776 3777 ctl_softc = pool->ctl_softc; 3778 3779 mtx_lock(&ctl_softc->pool_lock); 3780 /* 3781 * First, try to get the io structure from the user's pool. 3782 */ 3783 if (ctl_pool_acquire(pool) == 0) { 3784 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3785 if (io != NULL) { 3786 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3787 pool->total_allocated++; 3788 pool->free_ctl_io--; 3789 mtx_unlock(&ctl_softc->pool_lock); 3790 return (io); 3791 } else 3792 ctl_pool_release(pool); 3793 } 3794 /* 3795 * If he doesn't have any io structures left, search for an 3796 * emergency pool and grab one from there. 3797 */ 3798 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3799 if (npool->type != CTL_POOL_EMERGENCY) 3800 continue; 3801 3802 if (ctl_pool_acquire(npool) != 0) 3803 continue; 3804 3805 emergency_pool = npool; 3806 3807 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3808 if (io != NULL) { 3809 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3810 npool->total_allocated++; 3811 npool->free_ctl_io--; 3812 mtx_unlock(&ctl_softc->pool_lock); 3813 return (io); 3814 } else 3815 ctl_pool_release(npool); 3816 } 3817 3818 /* Drop the spinlock before we malloc */ 3819 mtx_unlock(&ctl_softc->pool_lock); 3820 3821 /* 3822 * The emergency pool (if it exists) didn't have one, so try an 3823 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3824 */ 3825 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3826 if (io != NULL) { 3827 /* 3828 * If the emergency pool exists but is empty, add this 3829 * ctl_io to its list when it gets freed. 3830 */ 3831 if (emergency_pool != NULL) { 3832 mtx_lock(&ctl_softc->pool_lock); 3833 if (ctl_pool_acquire(emergency_pool) == 0) { 3834 io->io_hdr.pool = emergency_pool; 3835 emergency_pool->total_ctl_io++; 3836 /* 3837 * Need to bump this, otherwise 3838 * total_allocated and total_freed won't 3839 * match when we no longer have anything 3840 * outstanding. 3841 */ 3842 emergency_pool->total_allocated++; 3843 } 3844 mtx_unlock(&ctl_softc->pool_lock); 3845 } else 3846 io->io_hdr.pool = NULL; 3847 } 3848 3849 return (io); 3850} 3851 3852void 3853ctl_free_io(union ctl_io *io) 3854{ 3855 if (io == NULL) 3856 return; 3857 3858 /* 3859 * If this ctl_io has a pool, return it to that pool. 3860 */ 3861 if (io->io_hdr.pool != NULL) { 3862 struct ctl_io_pool *pool; 3863 3864 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3865 mtx_lock(&pool->ctl_softc->pool_lock); 3866 io->io_hdr.io_type = 0xff; 3867 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3868 pool->total_freed++; 3869 pool->free_ctl_io++; 3870 ctl_pool_release(pool); 3871 mtx_unlock(&pool->ctl_softc->pool_lock); 3872 } else { 3873 /* 3874 * Otherwise, just free it. We probably malloced it and 3875 * the emergency pool wasn't available. 3876 */ 3877 free(io, M_CTLIO); 3878 } 3879 3880} 3881 3882void 3883ctl_zero_io(union ctl_io *io) 3884{ 3885 void *pool_ref; 3886 3887 if (io == NULL) 3888 return; 3889 3890 /* 3891 * May need to preserve linked list pointers at some point too. 3892 */ 3893 pool_ref = io->io_hdr.pool; 3894 3895 memset(io, 0, sizeof(*io)); 3896 3897 io->io_hdr.pool = pool_ref; 3898} 3899 3900/* 3901 * This routine is currently used for internal copies of ctl_ios that need 3902 * to persist for some reason after we've already returned status to the 3903 * FETD. (Thus the flag set.) 3904 * 3905 * XXX XXX 3906 * Note that this makes a blind copy of all fields in the ctl_io, except 3907 * for the pool reference. This includes any memory that has been 3908 * allocated! That memory will no longer be valid after done has been 3909 * called, so this would be VERY DANGEROUS for command that actually does 3910 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3911 * start and stop commands, which don't transfer any data, so this is not a 3912 * problem. If it is used for anything else, the caller would also need to 3913 * allocate data buffer space and this routine would need to be modified to 3914 * copy the data buffer(s) as well. 3915 */ 3916void 3917ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3918{ 3919 void *pool_ref; 3920 3921 if ((src == NULL) 3922 || (dest == NULL)) 3923 return; 3924 3925 /* 3926 * May need to preserve linked list pointers at some point too. 3927 */ 3928 pool_ref = dest->io_hdr.pool; 3929 3930 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3931 3932 dest->io_hdr.pool = pool_ref; 3933 /* 3934 * We need to know that this is an internal copy, and doesn't need 3935 * to get passed back to the FETD that allocated it. 3936 */ 3937 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3938} 3939 3940#ifdef NEEDTOPORT 3941static void 3942ctl_update_power_subpage(struct copan_power_subpage *page) 3943{ 3944 int num_luns, num_partitions, config_type; 3945 struct ctl_softc *softc; 3946 cs_BOOL_t aor_present, shelf_50pct_power; 3947 cs_raidset_personality_t rs_type; 3948 int max_active_luns; 3949 3950 softc = control_softc; 3951 3952 /* subtract out the processor LUN */ 3953 num_luns = softc->num_luns - 1; 3954 /* 3955 * Default to 7 LUNs active, which was the only number we allowed 3956 * in the past. 3957 */ 3958 max_active_luns = 7; 3959 3960 num_partitions = config_GetRsPartitionInfo(); 3961 config_type = config_GetConfigType(); 3962 shelf_50pct_power = config_GetShelfPowerMode(); 3963 aor_present = config_IsAorRsPresent(); 3964 3965 rs_type = ddb_GetRsRaidType(1); 3966 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3967 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3968 EPRINT(0, "Unsupported RS type %d!", rs_type); 3969 } 3970 3971 3972 page->total_luns = num_luns; 3973 3974 switch (config_type) { 3975 case 40: 3976 /* 3977 * In a 40 drive configuration, it doesn't matter what DC 3978 * cards we have, whether we have AOR enabled or not, 3979 * partitioning or not, or what type of RAIDset we have. 3980 * In that scenario, we can power up every LUN we present 3981 * to the user. 3982 */ 3983 max_active_luns = num_luns; 3984 3985 break; 3986 case 64: 3987 if (shelf_50pct_power == CS_FALSE) { 3988 /* 25% power */ 3989 if (aor_present == CS_TRUE) { 3990 if (rs_type == 3991 CS_RAIDSET_PERSONALITY_RAID5) { 3992 max_active_luns = 7; 3993 } else if (rs_type == 3994 CS_RAIDSET_PERSONALITY_RAID1){ 3995 max_active_luns = 14; 3996 } else { 3997 /* XXX KDM now what?? */ 3998 } 3999 } else { 4000 if (rs_type == 4001 CS_RAIDSET_PERSONALITY_RAID5) { 4002 max_active_luns = 8; 4003 } else if (rs_type == 4004 CS_RAIDSET_PERSONALITY_RAID1){ 4005 max_active_luns = 16; 4006 } else { 4007 /* XXX KDM now what?? */ 4008 } 4009 } 4010 } else { 4011 /* 50% power */ 4012 /* 4013 * With 50% power in a 64 drive configuration, we 4014 * can power all LUNs we present. 4015 */ 4016 max_active_luns = num_luns; 4017 } 4018 break; 4019 case 112: 4020 if (shelf_50pct_power == CS_FALSE) { 4021 /* 25% power */ 4022 if (aor_present == CS_TRUE) { 4023 if (rs_type == 4024 CS_RAIDSET_PERSONALITY_RAID5) { 4025 max_active_luns = 7; 4026 } else if (rs_type == 4027 CS_RAIDSET_PERSONALITY_RAID1){ 4028 max_active_luns = 14; 4029 } else { 4030 /* XXX KDM now what?? */ 4031 } 4032 } else { 4033 if (rs_type == 4034 CS_RAIDSET_PERSONALITY_RAID5) { 4035 max_active_luns = 8; 4036 } else if (rs_type == 4037 CS_RAIDSET_PERSONALITY_RAID1){ 4038 max_active_luns = 16; 4039 } else { 4040 /* XXX KDM now what?? */ 4041 } 4042 } 4043 } else { 4044 /* 50% power */ 4045 if (aor_present == CS_TRUE) { 4046 if (rs_type == 4047 CS_RAIDSET_PERSONALITY_RAID5) { 4048 max_active_luns = 14; 4049 } else if (rs_type == 4050 CS_RAIDSET_PERSONALITY_RAID1){ 4051 /* 4052 * We're assuming here that disk 4053 * caching is enabled, and so we're 4054 * able to power up half of each 4055 * LUN, and cache all writes. 4056 */ 4057 max_active_luns = num_luns; 4058 } else { 4059 /* XXX KDM now what?? */ 4060 } 4061 } else { 4062 if (rs_type == 4063 CS_RAIDSET_PERSONALITY_RAID5) { 4064 max_active_luns = 15; 4065 } else if (rs_type == 4066 CS_RAIDSET_PERSONALITY_RAID1){ 4067 max_active_luns = 30; 4068 } else { 4069 /* XXX KDM now what?? */ 4070 } 4071 } 4072 } 4073 break; 4074 default: 4075 /* 4076 * In this case, we have an unknown configuration, so we 4077 * just use the default from above. 4078 */ 4079 break; 4080 } 4081 4082 page->max_active_luns = max_active_luns; 4083#if 0 4084 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4085 page->total_luns, page->max_active_luns); 4086#endif 4087} 4088#endif /* NEEDTOPORT */ 4089 4090/* 4091 * This routine could be used in the future to load default and/or saved 4092 * mode page parameters for a particuar lun. 4093 */ 4094static int 4095ctl_init_page_index(struct ctl_lun *lun) 4096{ 4097 int i; 4098 struct ctl_page_index *page_index; 4099 struct ctl_softc *softc; 4100 const char *value; 4101 4102 memcpy(&lun->mode_pages.index, page_index_template, 4103 sizeof(page_index_template)); 4104 4105 softc = lun->ctl_softc; 4106 4107 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4108 4109 page_index = &lun->mode_pages.index[i]; 4110 /* 4111 * If this is a disk-only mode page, there's no point in 4112 * setting it up. For some pages, we have to have some 4113 * basic information about the disk in order to calculate the 4114 * mode page data. 4115 */ 4116 if ((lun->be_lun->lun_type != T_DIRECT) 4117 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4118 continue; 4119 4120 switch (page_index->page_code & SMPH_PC_MASK) { 4121 case SMS_FORMAT_DEVICE_PAGE: { 4122 struct scsi_format_page *format_page; 4123 4124 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4125 panic("subpage is incorrect!"); 4126 4127 /* 4128 * Sectors per track are set above. Bytes per 4129 * sector need to be set here on a per-LUN basis. 4130 */ 4131 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4132 &format_page_default, 4133 sizeof(format_page_default)); 4134 memcpy(&lun->mode_pages.format_page[ 4135 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4136 sizeof(format_page_changeable)); 4137 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4138 &format_page_default, 4139 sizeof(format_page_default)); 4140 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4141 &format_page_default, 4142 sizeof(format_page_default)); 4143 4144 format_page = &lun->mode_pages.format_page[ 4145 CTL_PAGE_CURRENT]; 4146 scsi_ulto2b(lun->be_lun->blocksize, 4147 format_page->bytes_per_sector); 4148 4149 format_page = &lun->mode_pages.format_page[ 4150 CTL_PAGE_DEFAULT]; 4151 scsi_ulto2b(lun->be_lun->blocksize, 4152 format_page->bytes_per_sector); 4153 4154 format_page = &lun->mode_pages.format_page[ 4155 CTL_PAGE_SAVED]; 4156 scsi_ulto2b(lun->be_lun->blocksize, 4157 format_page->bytes_per_sector); 4158 4159 page_index->page_data = 4160 (uint8_t *)lun->mode_pages.format_page; 4161 break; 4162 } 4163 case SMS_RIGID_DISK_PAGE: { 4164 struct scsi_rigid_disk_page *rigid_disk_page; 4165 uint32_t sectors_per_cylinder; 4166 uint64_t cylinders; 4167#ifndef __XSCALE__ 4168 int shift; 4169#endif /* !__XSCALE__ */ 4170 4171 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4172 panic("invalid subpage value %d", 4173 page_index->subpage); 4174 4175 /* 4176 * Rotation rate and sectors per track are set 4177 * above. We calculate the cylinders here based on 4178 * capacity. Due to the number of heads and 4179 * sectors per track we're using, smaller arrays 4180 * may turn out to have 0 cylinders. Linux and 4181 * FreeBSD don't pay attention to these mode pages 4182 * to figure out capacity, but Solaris does. It 4183 * seems to deal with 0 cylinders just fine, and 4184 * works out a fake geometry based on the capacity. 4185 */ 4186 memcpy(&lun->mode_pages.rigid_disk_page[ 4187 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4188 sizeof(rigid_disk_page_default)); 4189 memcpy(&lun->mode_pages.rigid_disk_page[ 4190 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4191 sizeof(rigid_disk_page_changeable)); 4192 memcpy(&lun->mode_pages.rigid_disk_page[ 4193 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4194 sizeof(rigid_disk_page_default)); 4195 memcpy(&lun->mode_pages.rigid_disk_page[ 4196 CTL_PAGE_SAVED], &rigid_disk_page_default, 4197 sizeof(rigid_disk_page_default)); 4198 4199 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4200 CTL_DEFAULT_HEADS; 4201 4202 /* 4203 * The divide method here will be more accurate, 4204 * probably, but results in floating point being 4205 * used in the kernel on i386 (__udivdi3()). On the 4206 * XScale, though, __udivdi3() is implemented in 4207 * software. 4208 * 4209 * The shift method for cylinder calculation is 4210 * accurate if sectors_per_cylinder is a power of 4211 * 2. Otherwise it might be slightly off -- you 4212 * might have a bit of a truncation problem. 4213 */ 4214#ifdef __XSCALE__ 4215 cylinders = (lun->be_lun->maxlba + 1) / 4216 sectors_per_cylinder; 4217#else 4218 for (shift = 31; shift > 0; shift--) { 4219 if (sectors_per_cylinder & (1 << shift)) 4220 break; 4221 } 4222 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4223#endif 4224 4225 /* 4226 * We've basically got 3 bytes, or 24 bits for the 4227 * cylinder size in the mode page. If we're over, 4228 * just round down to 2^24. 4229 */ 4230 if (cylinders > 0xffffff) 4231 cylinders = 0xffffff; 4232 4233 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4234 CTL_PAGE_CURRENT]; 4235 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4236 4237 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4238 CTL_PAGE_DEFAULT]; 4239 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4240 4241 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4242 CTL_PAGE_SAVED]; 4243 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4244 4245 page_index->page_data = 4246 (uint8_t *)lun->mode_pages.rigid_disk_page; 4247 break; 4248 } 4249 case SMS_CACHING_PAGE: { 4250 struct scsi_caching_page *caching_page; 4251 4252 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4253 panic("invalid subpage value %d", 4254 page_index->subpage); 4255 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4256 &caching_page_default, 4257 sizeof(caching_page_default)); 4258 memcpy(&lun->mode_pages.caching_page[ 4259 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4260 sizeof(caching_page_changeable)); 4261 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4262 &caching_page_default, 4263 sizeof(caching_page_default)); 4264 caching_page = &lun->mode_pages.caching_page[ 4265 CTL_PAGE_SAVED]; 4266 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4267 if (value != NULL && strcmp(value, "off") == 0) 4268 caching_page->flags1 &= ~SCP_WCE; 4269 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4270 if (value != NULL && strcmp(value, "off") == 0) 4271 caching_page->flags1 |= SCP_RCD; 4272 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4273 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4274 sizeof(caching_page_default)); 4275 page_index->page_data = 4276 (uint8_t *)lun->mode_pages.caching_page; 4277 break; 4278 } 4279 case SMS_CONTROL_MODE_PAGE: { 4280 struct scsi_control_page *control_page; 4281 4282 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4283 panic("invalid subpage value %d", 4284 page_index->subpage); 4285 4286 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4287 &control_page_default, 4288 sizeof(control_page_default)); 4289 memcpy(&lun->mode_pages.control_page[ 4290 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4291 sizeof(control_page_changeable)); 4292 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4293 &control_page_default, 4294 sizeof(control_page_default)); 4295 control_page = &lun->mode_pages.control_page[ 4296 CTL_PAGE_SAVED]; 4297 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4298 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4299 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4300 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4301 } 4302 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4303 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4304 sizeof(control_page_default)); 4305 page_index->page_data = 4306 (uint8_t *)lun->mode_pages.control_page; 4307 break; 4308 4309 } 4310 case SMS_VENDOR_SPECIFIC_PAGE:{ 4311 switch (page_index->subpage) { 4312 case PWR_SUBPAGE_CODE: { 4313 struct copan_power_subpage *current_page, 4314 *saved_page; 4315 4316 memcpy(&lun->mode_pages.power_subpage[ 4317 CTL_PAGE_CURRENT], 4318 &power_page_default, 4319 sizeof(power_page_default)); 4320 memcpy(&lun->mode_pages.power_subpage[ 4321 CTL_PAGE_CHANGEABLE], 4322 &power_page_changeable, 4323 sizeof(power_page_changeable)); 4324 memcpy(&lun->mode_pages.power_subpage[ 4325 CTL_PAGE_DEFAULT], 4326 &power_page_default, 4327 sizeof(power_page_default)); 4328 memcpy(&lun->mode_pages.power_subpage[ 4329 CTL_PAGE_SAVED], 4330 &power_page_default, 4331 sizeof(power_page_default)); 4332 page_index->page_data = 4333 (uint8_t *)lun->mode_pages.power_subpage; 4334 4335 current_page = (struct copan_power_subpage *) 4336 (page_index->page_data + 4337 (page_index->page_len * 4338 CTL_PAGE_CURRENT)); 4339 saved_page = (struct copan_power_subpage *) 4340 (page_index->page_data + 4341 (page_index->page_len * 4342 CTL_PAGE_SAVED)); 4343 break; 4344 } 4345 case APS_SUBPAGE_CODE: { 4346 struct copan_aps_subpage *current_page, 4347 *saved_page; 4348 4349 // This gets set multiple times but 4350 // it should always be the same. It's 4351 // only done during init so who cares. 4352 index_to_aps_page = i; 4353 4354 memcpy(&lun->mode_pages.aps_subpage[ 4355 CTL_PAGE_CURRENT], 4356 &aps_page_default, 4357 sizeof(aps_page_default)); 4358 memcpy(&lun->mode_pages.aps_subpage[ 4359 CTL_PAGE_CHANGEABLE], 4360 &aps_page_changeable, 4361 sizeof(aps_page_changeable)); 4362 memcpy(&lun->mode_pages.aps_subpage[ 4363 CTL_PAGE_DEFAULT], 4364 &aps_page_default, 4365 sizeof(aps_page_default)); 4366 memcpy(&lun->mode_pages.aps_subpage[ 4367 CTL_PAGE_SAVED], 4368 &aps_page_default, 4369 sizeof(aps_page_default)); 4370 page_index->page_data = 4371 (uint8_t *)lun->mode_pages.aps_subpage; 4372 4373 current_page = (struct copan_aps_subpage *) 4374 (page_index->page_data + 4375 (page_index->page_len * 4376 CTL_PAGE_CURRENT)); 4377 saved_page = (struct copan_aps_subpage *) 4378 (page_index->page_data + 4379 (page_index->page_len * 4380 CTL_PAGE_SAVED)); 4381 break; 4382 } 4383 case DBGCNF_SUBPAGE_CODE: { 4384 struct copan_debugconf_subpage *current_page, 4385 *saved_page; 4386 4387 memcpy(&lun->mode_pages.debugconf_subpage[ 4388 CTL_PAGE_CURRENT], 4389 &debugconf_page_default, 4390 sizeof(debugconf_page_default)); 4391 memcpy(&lun->mode_pages.debugconf_subpage[ 4392 CTL_PAGE_CHANGEABLE], 4393 &debugconf_page_changeable, 4394 sizeof(debugconf_page_changeable)); 4395 memcpy(&lun->mode_pages.debugconf_subpage[ 4396 CTL_PAGE_DEFAULT], 4397 &debugconf_page_default, 4398 sizeof(debugconf_page_default)); 4399 memcpy(&lun->mode_pages.debugconf_subpage[ 4400 CTL_PAGE_SAVED], 4401 &debugconf_page_default, 4402 sizeof(debugconf_page_default)); 4403 page_index->page_data = 4404 (uint8_t *)lun->mode_pages.debugconf_subpage; 4405 4406 current_page = (struct copan_debugconf_subpage *) 4407 (page_index->page_data + 4408 (page_index->page_len * 4409 CTL_PAGE_CURRENT)); 4410 saved_page = (struct copan_debugconf_subpage *) 4411 (page_index->page_data + 4412 (page_index->page_len * 4413 CTL_PAGE_SAVED)); 4414 break; 4415 } 4416 default: 4417 panic("invalid subpage value %d", 4418 page_index->subpage); 4419 break; 4420 } 4421 break; 4422 } 4423 default: 4424 panic("invalid page value %d", 4425 page_index->page_code & SMPH_PC_MASK); 4426 break; 4427 } 4428 } 4429 4430 return (CTL_RETVAL_COMPLETE); 4431} 4432 4433/* 4434 * LUN allocation. 4435 * 4436 * Requirements: 4437 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4438 * wants us to allocate the LUN and he can block. 4439 * - ctl_softc is always set 4440 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4441 * 4442 * Returns 0 for success, non-zero (errno) for failure. 4443 */ 4444static int 4445ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4446 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4447{ 4448 struct ctl_lun *nlun, *lun; 4449 struct ctl_port *port; 4450 struct scsi_vpd_id_descriptor *desc; 4451 struct scsi_vpd_id_t10 *t10id; 4452 const char *eui, *naa, *scsiname, *vendor; 4453 int lun_number, i, lun_malloced; 4454 int devidlen, idlen1, idlen2 = 0, len; 4455 4456 if (be_lun == NULL) 4457 return (EINVAL); 4458 4459 /* 4460 * We currently only support Direct Access or Processor LUN types. 4461 */ 4462 switch (be_lun->lun_type) { 4463 case T_DIRECT: 4464 break; 4465 case T_PROCESSOR: 4466 break; 4467 case T_SEQUENTIAL: 4468 case T_CHANGER: 4469 default: 4470 be_lun->lun_config_status(be_lun->be_lun, 4471 CTL_LUN_CONFIG_FAILURE); 4472 break; 4473 } 4474 if (ctl_lun == NULL) { 4475 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4476 lun_malloced = 1; 4477 } else { 4478 lun_malloced = 0; 4479 lun = ctl_lun; 4480 } 4481 4482 memset(lun, 0, sizeof(*lun)); 4483 if (lun_malloced) 4484 lun->flags = CTL_LUN_MALLOCED; 4485 4486 /* Generate LUN ID. */ 4487 devidlen = max(CTL_DEVID_MIN_LEN, 4488 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4489 idlen1 = sizeof(*t10id) + devidlen; 4490 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4491 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4492 if (scsiname != NULL) { 4493 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4494 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4495 } 4496 eui = ctl_get_opt(&be_lun->options, "eui"); 4497 if (eui != NULL) { 4498 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4499 } 4500 naa = ctl_get_opt(&be_lun->options, "naa"); 4501 if (naa != NULL) { 4502 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4503 } 4504 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4505 M_CTL, M_WAITOK | M_ZERO); 4506 lun->lun_devid->len = len; 4507 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4508 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4509 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4510 desc->length = idlen1; 4511 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4512 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4513 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4514 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4515 } else { 4516 strncpy(t10id->vendor, vendor, 4517 min(sizeof(t10id->vendor), strlen(vendor))); 4518 } 4519 strncpy((char *)t10id->vendor_spec_id, 4520 (char *)be_lun->device_id, devidlen); 4521 if (scsiname != NULL) { 4522 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4523 desc->length); 4524 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4525 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4526 SVPD_ID_TYPE_SCSI_NAME; 4527 desc->length = idlen2; 4528 strlcpy(desc->identifier, scsiname, idlen2); 4529 } 4530 if (eui != NULL) { 4531 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4532 desc->length); 4533 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4534 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4535 SVPD_ID_TYPE_EUI64; 4536 desc->length = 8; 4537 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4538 } 4539 if (naa != NULL) { 4540 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4541 desc->length); 4542 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4543 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4544 SVPD_ID_TYPE_NAA; 4545 desc->length = 8; 4546 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4547 } 4548 4549 mtx_lock(&ctl_softc->ctl_lock); 4550 /* 4551 * See if the caller requested a particular LUN number. If so, see 4552 * if it is available. Otherwise, allocate the first available LUN. 4553 */ 4554 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4555 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4556 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4557 mtx_unlock(&ctl_softc->ctl_lock); 4558 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4559 printf("ctl: requested LUN ID %d is higher " 4560 "than CTL_MAX_LUNS - 1 (%d)\n", 4561 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4562 } else { 4563 /* 4564 * XXX KDM return an error, or just assign 4565 * another LUN ID in this case?? 4566 */ 4567 printf("ctl: requested LUN ID %d is already " 4568 "in use\n", be_lun->req_lun_id); 4569 } 4570 if (lun->flags & CTL_LUN_MALLOCED) 4571 free(lun, M_CTL); 4572 be_lun->lun_config_status(be_lun->be_lun, 4573 CTL_LUN_CONFIG_FAILURE); 4574 return (ENOSPC); 4575 } 4576 lun_number = be_lun->req_lun_id; 4577 } else { 4578 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4579 if (lun_number == -1) { 4580 mtx_unlock(&ctl_softc->ctl_lock); 4581 printf("ctl: can't allocate LUN on target %ju, out of " 4582 "LUNs\n", (uintmax_t)target_id.id); 4583 if (lun->flags & CTL_LUN_MALLOCED) 4584 free(lun, M_CTL); 4585 be_lun->lun_config_status(be_lun->be_lun, 4586 CTL_LUN_CONFIG_FAILURE); 4587 return (ENOSPC); 4588 } 4589 } 4590 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4591 4592 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4593 lun->target = target_id; 4594 lun->lun = lun_number; 4595 lun->be_lun = be_lun; 4596 /* 4597 * The processor LUN is always enabled. Disk LUNs come on line 4598 * disabled, and must be enabled by the backend. 4599 */ 4600 lun->flags |= CTL_LUN_DISABLED; 4601 lun->backend = be_lun->be; 4602 be_lun->ctl_lun = lun; 4603 be_lun->lun_id = lun_number; 4604 atomic_add_int(&be_lun->be->num_luns, 1); 4605 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4606 lun->flags |= CTL_LUN_STOPPED; 4607 4608 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4609 lun->flags |= CTL_LUN_INOPERABLE; 4610 4611 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4612 lun->flags |= CTL_LUN_PRIMARY_SC; 4613 4614 lun->ctl_softc = ctl_softc; 4615 TAILQ_INIT(&lun->ooa_queue); 4616 TAILQ_INIT(&lun->blocked_queue); 4617 STAILQ_INIT(&lun->error_list); 4618 ctl_tpc_lun_init(lun); 4619 4620 /* 4621 * Initialize the mode page index. 4622 */ 4623 ctl_init_page_index(lun); 4624 4625 /* 4626 * Set the poweron UA for all initiators on this LUN only. 4627 */ 4628 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4629 lun->pending_ua[i] = CTL_UA_POWERON; 4630 4631 /* 4632 * Now, before we insert this lun on the lun list, set the lun 4633 * inventory changed UA for all other luns. 4634 */ 4635 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4636 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4637 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4638 } 4639 } 4640 4641 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4642 4643 ctl_softc->ctl_luns[lun_number] = lun; 4644 4645 ctl_softc->num_luns++; 4646 4647 /* Setup statistics gathering */ 4648 lun->stats.device_type = be_lun->lun_type; 4649 lun->stats.lun_number = lun_number; 4650 if (lun->stats.device_type == T_DIRECT) 4651 lun->stats.blocksize = be_lun->blocksize; 4652 else 4653 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4654 for (i = 0;i < CTL_MAX_PORTS;i++) 4655 lun->stats.ports[i].targ_port = i; 4656 4657 mtx_unlock(&ctl_softc->ctl_lock); 4658 4659 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4660 4661 /* 4662 * Run through each registered FETD and bring it online if it isn't 4663 * already. Enable the target ID if it hasn't been enabled, and 4664 * enable this particular LUN. 4665 */ 4666 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4667 int retval; 4668 4669 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4670 if (retval != 0) { 4671 printf("ctl_alloc_lun: FETD %s port %d returned error " 4672 "%d for lun_enable on target %ju lun %d\n", 4673 port->port_name, port->targ_port, retval, 4674 (uintmax_t)target_id.id, lun_number); 4675 } else 4676 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4677 } 4678 return (0); 4679} 4680 4681/* 4682 * Delete a LUN. 4683 * Assumptions: 4684 * - LUN has already been marked invalid and any pending I/O has been taken 4685 * care of. 4686 */ 4687static int 4688ctl_free_lun(struct ctl_lun *lun) 4689{ 4690 struct ctl_softc *softc; 4691#if 0 4692 struct ctl_port *port; 4693#endif 4694 struct ctl_lun *nlun; 4695 int i; 4696 4697 softc = lun->ctl_softc; 4698 4699 mtx_assert(&softc->ctl_lock, MA_OWNED); 4700 4701 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4702 4703 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4704 4705 softc->ctl_luns[lun->lun] = NULL; 4706 4707 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4708 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4709 4710 softc->num_luns--; 4711 4712 /* 4713 * XXX KDM this scheme only works for a single target/multiple LUN 4714 * setup. It needs to be revamped for a multiple target scheme. 4715 * 4716 * XXX KDM this results in port->lun_disable() getting called twice, 4717 * once when ctl_disable_lun() is called, and a second time here. 4718 * We really need to re-think the LUN disable semantics. There 4719 * should probably be several steps/levels to LUN removal: 4720 * - disable 4721 * - invalidate 4722 * - free 4723 * 4724 * Right now we only have a disable method when communicating to 4725 * the front end ports, at least for individual LUNs. 4726 */ 4727#if 0 4728 STAILQ_FOREACH(port, &softc->port_list, links) { 4729 int retval; 4730 4731 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4732 lun->lun); 4733 if (retval != 0) { 4734 printf("ctl_free_lun: FETD %s port %d returned error " 4735 "%d for lun_disable on target %ju lun %jd\n", 4736 port->port_name, port->targ_port, retval, 4737 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4738 } 4739 4740 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4741 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4742 4743 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4744 if (retval != 0) { 4745 printf("ctl_free_lun: FETD %s port %d " 4746 "returned error %d for targ_disable on " 4747 "target %ju\n", port->port_name, 4748 port->targ_port, retval, 4749 (uintmax_t)lun->target.id); 4750 } else 4751 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4752 4753 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4754 continue; 4755 4756#if 0 4757 port->port_offline(port->onoff_arg); 4758 port->status &= ~CTL_PORT_STATUS_ONLINE; 4759#endif 4760 } 4761 } 4762#endif 4763 4764 /* 4765 * Tell the backend to free resources, if this LUN has a backend. 4766 */ 4767 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4768 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4769 4770 ctl_tpc_lun_shutdown(lun); 4771 mtx_destroy(&lun->lun_lock); 4772 free(lun->lun_devid, M_CTL); 4773 if (lun->flags & CTL_LUN_MALLOCED) 4774 free(lun, M_CTL); 4775 4776 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4777 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4778 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4779 } 4780 } 4781 4782 return (0); 4783} 4784 4785static void 4786ctl_create_lun(struct ctl_be_lun *be_lun) 4787{ 4788 struct ctl_softc *ctl_softc; 4789 4790 ctl_softc = control_softc; 4791 4792 /* 4793 * ctl_alloc_lun() should handle all potential failure cases. 4794 */ 4795 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4796} 4797 4798int 4799ctl_add_lun(struct ctl_be_lun *be_lun) 4800{ 4801 struct ctl_softc *ctl_softc = control_softc; 4802 4803 mtx_lock(&ctl_softc->ctl_lock); 4804 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4805 mtx_unlock(&ctl_softc->ctl_lock); 4806 wakeup(&ctl_softc->pending_lun_queue); 4807 4808 return (0); 4809} 4810 4811int 4812ctl_enable_lun(struct ctl_be_lun *be_lun) 4813{ 4814 struct ctl_softc *ctl_softc; 4815 struct ctl_port *port, *nport; 4816 struct ctl_lun *lun; 4817 int retval; 4818 4819 ctl_softc = control_softc; 4820 4821 lun = (struct ctl_lun *)be_lun->ctl_lun; 4822 4823 mtx_lock(&ctl_softc->ctl_lock); 4824 mtx_lock(&lun->lun_lock); 4825 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4826 /* 4827 * eh? Why did we get called if the LUN is already 4828 * enabled? 4829 */ 4830 mtx_unlock(&lun->lun_lock); 4831 mtx_unlock(&ctl_softc->ctl_lock); 4832 return (0); 4833 } 4834 lun->flags &= ~CTL_LUN_DISABLED; 4835 mtx_unlock(&lun->lun_lock); 4836 4837 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4838 nport = STAILQ_NEXT(port, links); 4839 4840 /* 4841 * Drop the lock while we call the FETD's enable routine. 4842 * This can lead to a callback into CTL (at least in the 4843 * case of the internal initiator frontend. 4844 */ 4845 mtx_unlock(&ctl_softc->ctl_lock); 4846 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4847 mtx_lock(&ctl_softc->ctl_lock); 4848 if (retval != 0) { 4849 printf("%s: FETD %s port %d returned error " 4850 "%d for lun_enable on target %ju lun %jd\n", 4851 __func__, port->port_name, port->targ_port, retval, 4852 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4853 } 4854#if 0 4855 else { 4856 /* NOTE: TODO: why does lun enable affect port status? */ 4857 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4858 } 4859#endif 4860 } 4861 4862 mtx_unlock(&ctl_softc->ctl_lock); 4863 4864 return (0); 4865} 4866 4867int 4868ctl_disable_lun(struct ctl_be_lun *be_lun) 4869{ 4870 struct ctl_softc *ctl_softc; 4871 struct ctl_port *port; 4872 struct ctl_lun *lun; 4873 int retval; 4874 4875 ctl_softc = control_softc; 4876 4877 lun = (struct ctl_lun *)be_lun->ctl_lun; 4878 4879 mtx_lock(&ctl_softc->ctl_lock); 4880 mtx_lock(&lun->lun_lock); 4881 if (lun->flags & CTL_LUN_DISABLED) { 4882 mtx_unlock(&lun->lun_lock); 4883 mtx_unlock(&ctl_softc->ctl_lock); 4884 return (0); 4885 } 4886 lun->flags |= CTL_LUN_DISABLED; 4887 mtx_unlock(&lun->lun_lock); 4888 4889 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4890 mtx_unlock(&ctl_softc->ctl_lock); 4891 /* 4892 * Drop the lock before we call the frontend's disable 4893 * routine, to avoid lock order reversals. 4894 * 4895 * XXX KDM what happens if the frontend list changes while 4896 * we're traversing it? It's unlikely, but should be handled. 4897 */ 4898 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4899 lun->lun); 4900 mtx_lock(&ctl_softc->ctl_lock); 4901 if (retval != 0) { 4902 printf("ctl_alloc_lun: FETD %s port %d returned error " 4903 "%d for lun_disable on target %ju lun %jd\n", 4904 port->port_name, port->targ_port, retval, 4905 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4906 } 4907 } 4908 4909 mtx_unlock(&ctl_softc->ctl_lock); 4910 4911 return (0); 4912} 4913 4914int 4915ctl_start_lun(struct ctl_be_lun *be_lun) 4916{ 4917 struct ctl_softc *ctl_softc; 4918 struct ctl_lun *lun; 4919 4920 ctl_softc = control_softc; 4921 4922 lun = (struct ctl_lun *)be_lun->ctl_lun; 4923 4924 mtx_lock(&lun->lun_lock); 4925 lun->flags &= ~CTL_LUN_STOPPED; 4926 mtx_unlock(&lun->lun_lock); 4927 4928 return (0); 4929} 4930 4931int 4932ctl_stop_lun(struct ctl_be_lun *be_lun) 4933{ 4934 struct ctl_softc *ctl_softc; 4935 struct ctl_lun *lun; 4936 4937 ctl_softc = control_softc; 4938 4939 lun = (struct ctl_lun *)be_lun->ctl_lun; 4940 4941 mtx_lock(&lun->lun_lock); 4942 lun->flags |= CTL_LUN_STOPPED; 4943 mtx_unlock(&lun->lun_lock); 4944 4945 return (0); 4946} 4947 4948int 4949ctl_lun_offline(struct ctl_be_lun *be_lun) 4950{ 4951 struct ctl_softc *ctl_softc; 4952 struct ctl_lun *lun; 4953 4954 ctl_softc = control_softc; 4955 4956 lun = (struct ctl_lun *)be_lun->ctl_lun; 4957 4958 mtx_lock(&lun->lun_lock); 4959 lun->flags |= CTL_LUN_OFFLINE; 4960 mtx_unlock(&lun->lun_lock); 4961 4962 return (0); 4963} 4964 4965int 4966ctl_lun_online(struct ctl_be_lun *be_lun) 4967{ 4968 struct ctl_softc *ctl_softc; 4969 struct ctl_lun *lun; 4970 4971 ctl_softc = control_softc; 4972 4973 lun = (struct ctl_lun *)be_lun->ctl_lun; 4974 4975 mtx_lock(&lun->lun_lock); 4976 lun->flags &= ~CTL_LUN_OFFLINE; 4977 mtx_unlock(&lun->lun_lock); 4978 4979 return (0); 4980} 4981 4982int 4983ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4984{ 4985 struct ctl_softc *ctl_softc; 4986 struct ctl_lun *lun; 4987 4988 ctl_softc = control_softc; 4989 4990 lun = (struct ctl_lun *)be_lun->ctl_lun; 4991 4992 mtx_lock(&lun->lun_lock); 4993 4994 /* 4995 * The LUN needs to be disabled before it can be marked invalid. 4996 */ 4997 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4998 mtx_unlock(&lun->lun_lock); 4999 return (-1); 5000 } 5001 /* 5002 * Mark the LUN invalid. 5003 */ 5004 lun->flags |= CTL_LUN_INVALID; 5005 5006 /* 5007 * If there is nothing in the OOA queue, go ahead and free the LUN. 5008 * If we have something in the OOA queue, we'll free it when the 5009 * last I/O completes. 5010 */ 5011 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5012 mtx_unlock(&lun->lun_lock); 5013 mtx_lock(&ctl_softc->ctl_lock); 5014 ctl_free_lun(lun); 5015 mtx_unlock(&ctl_softc->ctl_lock); 5016 } else 5017 mtx_unlock(&lun->lun_lock); 5018 5019 return (0); 5020} 5021 5022int 5023ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5024{ 5025 struct ctl_softc *ctl_softc; 5026 struct ctl_lun *lun; 5027 5028 ctl_softc = control_softc; 5029 lun = (struct ctl_lun *)be_lun->ctl_lun; 5030 5031 mtx_lock(&lun->lun_lock); 5032 lun->flags |= CTL_LUN_INOPERABLE; 5033 mtx_unlock(&lun->lun_lock); 5034 5035 return (0); 5036} 5037 5038int 5039ctl_lun_operable(struct ctl_be_lun *be_lun) 5040{ 5041 struct ctl_softc *ctl_softc; 5042 struct ctl_lun *lun; 5043 5044 ctl_softc = control_softc; 5045 lun = (struct ctl_lun *)be_lun->ctl_lun; 5046 5047 mtx_lock(&lun->lun_lock); 5048 lun->flags &= ~CTL_LUN_INOPERABLE; 5049 mtx_unlock(&lun->lun_lock); 5050 5051 return (0); 5052} 5053 5054int 5055ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5056 int lock) 5057{ 5058 struct ctl_softc *softc; 5059 struct ctl_lun *lun; 5060 struct copan_aps_subpage *current_sp; 5061 struct ctl_page_index *page_index; 5062 int i; 5063 5064 softc = control_softc; 5065 5066 mtx_lock(&softc->ctl_lock); 5067 5068 lun = (struct ctl_lun *)be_lun->ctl_lun; 5069 mtx_lock(&lun->lun_lock); 5070 5071 page_index = NULL; 5072 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5073 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5074 APS_PAGE_CODE) 5075 continue; 5076 5077 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5078 continue; 5079 page_index = &lun->mode_pages.index[i]; 5080 } 5081 5082 if (page_index == NULL) { 5083 mtx_unlock(&lun->lun_lock); 5084 mtx_unlock(&softc->ctl_lock); 5085 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5086 (uintmax_t)lun->lun); 5087 return (1); 5088 } 5089#if 0 5090 if ((softc->aps_locked_lun != 0) 5091 && (softc->aps_locked_lun != lun->lun)) { 5092 printf("%s: attempt to lock LUN %llu when %llu is already " 5093 "locked\n"); 5094 mtx_unlock(&lun->lun_lock); 5095 mtx_unlock(&softc->ctl_lock); 5096 return (1); 5097 } 5098#endif 5099 5100 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5101 (page_index->page_len * CTL_PAGE_CURRENT)); 5102 5103 if (lock != 0) { 5104 current_sp->lock_active = APS_LOCK_ACTIVE; 5105 softc->aps_locked_lun = lun->lun; 5106 } else { 5107 current_sp->lock_active = 0; 5108 softc->aps_locked_lun = 0; 5109 } 5110 5111 5112 /* 5113 * If we're in HA mode, try to send the lock message to the other 5114 * side. 5115 */ 5116 if (ctl_is_single == 0) { 5117 int isc_retval; 5118 union ctl_ha_msg lock_msg; 5119 5120 lock_msg.hdr.nexus = *nexus; 5121 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5122 if (lock != 0) 5123 lock_msg.aps.lock_flag = 1; 5124 else 5125 lock_msg.aps.lock_flag = 0; 5126 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5127 sizeof(lock_msg), 0); 5128 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5129 printf("%s: APS (lock=%d) error returned from " 5130 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5131 mtx_unlock(&lun->lun_lock); 5132 mtx_unlock(&softc->ctl_lock); 5133 return (1); 5134 } 5135 } 5136 5137 mtx_unlock(&lun->lun_lock); 5138 mtx_unlock(&softc->ctl_lock); 5139 5140 return (0); 5141} 5142 5143void 5144ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5145{ 5146 struct ctl_lun *lun; 5147 struct ctl_softc *softc; 5148 int i; 5149 5150 softc = control_softc; 5151 5152 lun = (struct ctl_lun *)be_lun->ctl_lun; 5153 5154 mtx_lock(&lun->lun_lock); 5155 5156 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5157 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5158 5159 mtx_unlock(&lun->lun_lock); 5160} 5161 5162/* 5163 * Backend "memory move is complete" callback for requests that never 5164 * make it down to say RAIDCore's configuration code. 5165 */ 5166int 5167ctl_config_move_done(union ctl_io *io) 5168{ 5169 int retval; 5170 5171 retval = CTL_RETVAL_COMPLETE; 5172 5173 5174 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5175 /* 5176 * XXX KDM this shouldn't happen, but what if it does? 5177 */ 5178 if (io->io_hdr.io_type != CTL_IO_SCSI) 5179 panic("I/O type isn't CTL_IO_SCSI!"); 5180 5181 if ((io->io_hdr.port_status == 0) 5182 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5183 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5184 io->io_hdr.status = CTL_SUCCESS; 5185 else if ((io->io_hdr.port_status != 0) 5186 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5187 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5188 /* 5189 * For hardware error sense keys, the sense key 5190 * specific value is defined to be a retry count, 5191 * but we use it to pass back an internal FETD 5192 * error code. XXX KDM Hopefully the FETD is only 5193 * using 16 bits for an error code, since that's 5194 * all the space we have in the sks field. 5195 */ 5196 ctl_set_internal_failure(&io->scsiio, 5197 /*sks_valid*/ 1, 5198 /*retry_count*/ 5199 io->io_hdr.port_status); 5200 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5201 free(io->scsiio.kern_data_ptr, M_CTL); 5202 ctl_done(io); 5203 goto bailout; 5204 } 5205 5206 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5207 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5208 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5209 /* 5210 * XXX KDM just assuming a single pointer here, and not a 5211 * S/G list. If we start using S/G lists for config data, 5212 * we'll need to know how to clean them up here as well. 5213 */ 5214 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5215 free(io->scsiio.kern_data_ptr, M_CTL); 5216 /* Hopefully the user has already set the status... */ 5217 ctl_done(io); 5218 } else { 5219 /* 5220 * XXX KDM now we need to continue data movement. Some 5221 * options: 5222 * - call ctl_scsiio() again? We don't do this for data 5223 * writes, because for those at least we know ahead of 5224 * time where the write will go and how long it is. For 5225 * config writes, though, that information is largely 5226 * contained within the write itself, thus we need to 5227 * parse out the data again. 5228 * 5229 * - Call some other function once the data is in? 5230 */ 5231 5232 /* 5233 * XXX KDM call ctl_scsiio() again for now, and check flag 5234 * bits to see whether we're allocated or not. 5235 */ 5236 retval = ctl_scsiio(&io->scsiio); 5237 } 5238bailout: 5239 return (retval); 5240} 5241 5242/* 5243 * This gets called by a backend driver when it is done with a 5244 * data_submit method. 5245 */ 5246void 5247ctl_data_submit_done(union ctl_io *io) 5248{ 5249 /* 5250 * If the IO_CONT flag is set, we need to call the supplied 5251 * function to continue processing the I/O, instead of completing 5252 * the I/O just yet. 5253 * 5254 * If there is an error, though, we don't want to keep processing. 5255 * Instead, just send status back to the initiator. 5256 */ 5257 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5258 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5259 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5260 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5261 io->scsiio.io_cont(io); 5262 return; 5263 } 5264 ctl_done(io); 5265} 5266 5267/* 5268 * This gets called by a backend driver when it is done with a 5269 * configuration write. 5270 */ 5271void 5272ctl_config_write_done(union ctl_io *io) 5273{ 5274 uint8_t *buf; 5275 5276 /* 5277 * If the IO_CONT flag is set, we need to call the supplied 5278 * function to continue processing the I/O, instead of completing 5279 * the I/O just yet. 5280 * 5281 * If there is an error, though, we don't want to keep processing. 5282 * Instead, just send status back to the initiator. 5283 */ 5284 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5285 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5286 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5287 io->scsiio.io_cont(io); 5288 return; 5289 } 5290 /* 5291 * Since a configuration write can be done for commands that actually 5292 * have data allocated, like write buffer, and commands that have 5293 * no data, like start/stop unit, we need to check here. 5294 */ 5295 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5296 buf = io->scsiio.kern_data_ptr; 5297 else 5298 buf = NULL; 5299 ctl_done(io); 5300 if (buf) 5301 free(buf, M_CTL); 5302} 5303 5304/* 5305 * SCSI release command. 5306 */ 5307int 5308ctl_scsi_release(struct ctl_scsiio *ctsio) 5309{ 5310 int length, longid, thirdparty_id, resv_id; 5311 struct ctl_softc *ctl_softc; 5312 struct ctl_lun *lun; 5313 5314 length = 0; 5315 resv_id = 0; 5316 5317 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5318 5319 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5320 ctl_softc = control_softc; 5321 5322 switch (ctsio->cdb[0]) { 5323 case RELEASE_10: { 5324 struct scsi_release_10 *cdb; 5325 5326 cdb = (struct scsi_release_10 *)ctsio->cdb; 5327 5328 if (cdb->byte2 & SR10_LONGID) 5329 longid = 1; 5330 else 5331 thirdparty_id = cdb->thirdparty_id; 5332 5333 resv_id = cdb->resv_id; 5334 length = scsi_2btoul(cdb->length); 5335 break; 5336 } 5337 } 5338 5339 5340 /* 5341 * XXX KDM right now, we only support LUN reservation. We don't 5342 * support 3rd party reservations, or extent reservations, which 5343 * might actually need the parameter list. If we've gotten this 5344 * far, we've got a LUN reservation. Anything else got kicked out 5345 * above. So, according to SPC, ignore the length. 5346 */ 5347 length = 0; 5348 5349 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5350 && (length > 0)) { 5351 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5352 ctsio->kern_data_len = length; 5353 ctsio->kern_total_len = length; 5354 ctsio->kern_data_resid = 0; 5355 ctsio->kern_rel_offset = 0; 5356 ctsio->kern_sg_entries = 0; 5357 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5358 ctsio->be_move_done = ctl_config_move_done; 5359 ctl_datamove((union ctl_io *)ctsio); 5360 5361 return (CTL_RETVAL_COMPLETE); 5362 } 5363 5364 if (length > 0) 5365 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5366 5367 mtx_lock(&lun->lun_lock); 5368 5369 /* 5370 * According to SPC, it is not an error for an intiator to attempt 5371 * to release a reservation on a LUN that isn't reserved, or that 5372 * is reserved by another initiator. The reservation can only be 5373 * released, though, by the initiator who made it or by one of 5374 * several reset type events. 5375 */ 5376 if (lun->flags & CTL_LUN_RESERVED) { 5377 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5378 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5379 && (ctsio->io_hdr.nexus.targ_target.id == 5380 lun->rsv_nexus.targ_target.id)) { 5381 lun->flags &= ~CTL_LUN_RESERVED; 5382 } 5383 } 5384 5385 mtx_unlock(&lun->lun_lock); 5386 5387 ctsio->scsi_status = SCSI_STATUS_OK; 5388 ctsio->io_hdr.status = CTL_SUCCESS; 5389 5390 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5391 free(ctsio->kern_data_ptr, M_CTL); 5392 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5393 } 5394 5395 ctl_done((union ctl_io *)ctsio); 5396 return (CTL_RETVAL_COMPLETE); 5397} 5398 5399int 5400ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5401{ 5402 int extent, thirdparty, longid; 5403 int resv_id, length; 5404 uint64_t thirdparty_id; 5405 struct ctl_softc *ctl_softc; 5406 struct ctl_lun *lun; 5407 5408 extent = 0; 5409 thirdparty = 0; 5410 longid = 0; 5411 resv_id = 0; 5412 length = 0; 5413 thirdparty_id = 0; 5414 5415 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5416 5417 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5418 ctl_softc = control_softc; 5419 5420 switch (ctsio->cdb[0]) { 5421 case RESERVE_10: { 5422 struct scsi_reserve_10 *cdb; 5423 5424 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5425 5426 if (cdb->byte2 & SR10_LONGID) 5427 longid = 1; 5428 else 5429 thirdparty_id = cdb->thirdparty_id; 5430 5431 resv_id = cdb->resv_id; 5432 length = scsi_2btoul(cdb->length); 5433 break; 5434 } 5435 } 5436 5437 /* 5438 * XXX KDM right now, we only support LUN reservation. We don't 5439 * support 3rd party reservations, or extent reservations, which 5440 * might actually need the parameter list. If we've gotten this 5441 * far, we've got a LUN reservation. Anything else got kicked out 5442 * above. So, according to SPC, ignore the length. 5443 */ 5444 length = 0; 5445 5446 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5447 && (length > 0)) { 5448 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5449 ctsio->kern_data_len = length; 5450 ctsio->kern_total_len = length; 5451 ctsio->kern_data_resid = 0; 5452 ctsio->kern_rel_offset = 0; 5453 ctsio->kern_sg_entries = 0; 5454 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5455 ctsio->be_move_done = ctl_config_move_done; 5456 ctl_datamove((union ctl_io *)ctsio); 5457 5458 return (CTL_RETVAL_COMPLETE); 5459 } 5460 5461 if (length > 0) 5462 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5463 5464 mtx_lock(&lun->lun_lock); 5465 if (lun->flags & CTL_LUN_RESERVED) { 5466 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5467 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5468 || (ctsio->io_hdr.nexus.targ_target.id != 5469 lun->rsv_nexus.targ_target.id)) { 5470 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5471 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5472 goto bailout; 5473 } 5474 } 5475 5476 lun->flags |= CTL_LUN_RESERVED; 5477 lun->rsv_nexus = ctsio->io_hdr.nexus; 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->per_res[residx].registered 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->per_res[residx].registered)) { 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 flag can be used only together with UNMAP */ 5999 if ((byte2 & (SWS_NDOB | SWS_UNMAP)) == SWS_NDOB) { 6000 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 6001 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 6002 ctl_done((union ctl_io *)ctsio); 6003 return (CTL_RETVAL_COMPLETE); 6004 } 6005 6006 /* 6007 * The first check is to make sure we're in bounds, the second 6008 * check is to catch wrap-around problems. If the lba + num blocks 6009 * is less than the lba, then we've wrapped around and the block 6010 * range is invalid anyway. 6011 */ 6012 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6013 || ((lba + num_blocks) < lba)) { 6014 ctl_set_lba_out_of_range(ctsio); 6015 ctl_done((union ctl_io *)ctsio); 6016 return (CTL_RETVAL_COMPLETE); 6017 } 6018 6019 /* Zero number of blocks means "to the last logical block" */ 6020 if (num_blocks == 0) { 6021 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6022 ctl_set_invalid_field(ctsio, 6023 /*sks_valid*/ 0, 6024 /*command*/ 1, 6025 /*field*/ 0, 6026 /*bit_valid*/ 0, 6027 /*bit*/ 0); 6028 ctl_done((union ctl_io *)ctsio); 6029 return (CTL_RETVAL_COMPLETE); 6030 } 6031 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6032 } 6033 6034 len = lun->be_lun->blocksize; 6035 6036 /* 6037 * If we've got a kernel request that hasn't been malloced yet, 6038 * malloc it and tell the caller the data buffer is here. 6039 */ 6040 if ((byte2 & SWS_NDOB) == 0 && 6041 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6042 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6043 ctsio->kern_data_len = len; 6044 ctsio->kern_total_len = len; 6045 ctsio->kern_data_resid = 0; 6046 ctsio->kern_rel_offset = 0; 6047 ctsio->kern_sg_entries = 0; 6048 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6049 ctsio->be_move_done = ctl_config_move_done; 6050 ctl_datamove((union ctl_io *)ctsio); 6051 6052 return (CTL_RETVAL_COMPLETE); 6053 } 6054 6055 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6056 lbalen->lba = lba; 6057 lbalen->len = num_blocks; 6058 lbalen->flags = byte2; 6059 retval = lun->backend->config_write((union ctl_io *)ctsio); 6060 6061 return (retval); 6062} 6063 6064int 6065ctl_unmap(struct ctl_scsiio *ctsio) 6066{ 6067 struct ctl_lun *lun; 6068 struct scsi_unmap *cdb; 6069 struct ctl_ptr_len_flags *ptrlen; 6070 struct scsi_unmap_header *hdr; 6071 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6072 uint64_t lba; 6073 uint32_t num_blocks; 6074 int len, retval; 6075 uint8_t byte2; 6076 6077 retval = CTL_RETVAL_COMPLETE; 6078 6079 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6080 6081 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6082 cdb = (struct scsi_unmap *)ctsio->cdb; 6083 6084 len = scsi_2btoul(cdb->length); 6085 byte2 = cdb->byte2; 6086 6087 /* 6088 * If we've got a kernel request that hasn't been malloced yet, 6089 * malloc it and tell the caller the data buffer is here. 6090 */ 6091 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6092 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6093 ctsio->kern_data_len = len; 6094 ctsio->kern_total_len = len; 6095 ctsio->kern_data_resid = 0; 6096 ctsio->kern_rel_offset = 0; 6097 ctsio->kern_sg_entries = 0; 6098 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6099 ctsio->be_move_done = ctl_config_move_done; 6100 ctl_datamove((union ctl_io *)ctsio); 6101 6102 return (CTL_RETVAL_COMPLETE); 6103 } 6104 6105 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6106 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6107 if (len < sizeof (*hdr) || 6108 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6109 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6110 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6111 ctl_set_invalid_field(ctsio, 6112 /*sks_valid*/ 0, 6113 /*command*/ 0, 6114 /*field*/ 0, 6115 /*bit_valid*/ 0, 6116 /*bit*/ 0); 6117 ctl_done((union ctl_io *)ctsio); 6118 return (CTL_RETVAL_COMPLETE); 6119 } 6120 len = scsi_2btoul(hdr->desc_length); 6121 buf = (struct scsi_unmap_desc *)(hdr + 1); 6122 end = buf + len / sizeof(*buf); 6123 6124 endnz = buf; 6125 for (range = buf; range < end; range++) { 6126 lba = scsi_8btou64(range->lba); 6127 num_blocks = scsi_4btoul(range->length); 6128 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6129 || ((lba + num_blocks) < lba)) { 6130 ctl_set_lba_out_of_range(ctsio); 6131 ctl_done((union ctl_io *)ctsio); 6132 return (CTL_RETVAL_COMPLETE); 6133 } 6134 if (num_blocks != 0) 6135 endnz = range + 1; 6136 } 6137 6138 /* 6139 * Block backend can not handle zero last range. 6140 * Filter it out and return if there is nothing left. 6141 */ 6142 len = (uint8_t *)endnz - (uint8_t *)buf; 6143 if (len == 0) { 6144 ctl_set_success(ctsio); 6145 ctl_done((union ctl_io *)ctsio); 6146 return (CTL_RETVAL_COMPLETE); 6147 } 6148 6149 mtx_lock(&lun->lun_lock); 6150 ptrlen = (struct ctl_ptr_len_flags *) 6151 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6152 ptrlen->ptr = (void *)buf; 6153 ptrlen->len = len; 6154 ptrlen->flags = byte2; 6155 ctl_check_blocked(lun); 6156 mtx_unlock(&lun->lun_lock); 6157 6158 retval = lun->backend->config_write((union ctl_io *)ctsio); 6159 return (retval); 6160} 6161 6162/* 6163 * Note that this function currently doesn't actually do anything inside 6164 * CTL to enforce things if the DQue bit is turned on. 6165 * 6166 * Also note that this function can't be used in the default case, because 6167 * the DQue bit isn't set in the changeable mask for the control mode page 6168 * anyway. This is just here as an example for how to implement a page 6169 * handler, and a placeholder in case we want to allow the user to turn 6170 * tagged queueing on and off. 6171 * 6172 * The D_SENSE bit handling is functional, however, and will turn 6173 * descriptor sense on and off for a given LUN. 6174 */ 6175int 6176ctl_control_page_handler(struct ctl_scsiio *ctsio, 6177 struct ctl_page_index *page_index, uint8_t *page_ptr) 6178{ 6179 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6180 struct ctl_lun *lun; 6181 struct ctl_softc *softc; 6182 int set_ua; 6183 uint32_t initidx; 6184 6185 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6186 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6187 set_ua = 0; 6188 6189 user_cp = (struct scsi_control_page *)page_ptr; 6190 current_cp = (struct scsi_control_page *) 6191 (page_index->page_data + (page_index->page_len * 6192 CTL_PAGE_CURRENT)); 6193 saved_cp = (struct scsi_control_page *) 6194 (page_index->page_data + (page_index->page_len * 6195 CTL_PAGE_SAVED)); 6196 6197 softc = control_softc; 6198 6199 mtx_lock(&lun->lun_lock); 6200 if (((current_cp->rlec & SCP_DSENSE) == 0) 6201 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6202 /* 6203 * Descriptor sense is currently turned off and the user 6204 * wants to turn it on. 6205 */ 6206 current_cp->rlec |= SCP_DSENSE; 6207 saved_cp->rlec |= SCP_DSENSE; 6208 lun->flags |= CTL_LUN_SENSE_DESC; 6209 set_ua = 1; 6210 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6211 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6212 /* 6213 * Descriptor sense is currently turned on, and the user 6214 * wants to turn it off. 6215 */ 6216 current_cp->rlec &= ~SCP_DSENSE; 6217 saved_cp->rlec &= ~SCP_DSENSE; 6218 lun->flags &= ~CTL_LUN_SENSE_DESC; 6219 set_ua = 1; 6220 } 6221 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6222 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6223 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6224 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6225 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6226 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6227 set_ua = 1; 6228 } 6229 if (set_ua != 0) { 6230 int i; 6231 /* 6232 * Let other initiators know that the mode 6233 * parameters for this LUN have changed. 6234 */ 6235 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6236 if (i == initidx) 6237 continue; 6238 6239 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6240 } 6241 } 6242 mtx_unlock(&lun->lun_lock); 6243 6244 return (0); 6245} 6246 6247int 6248ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6249 struct ctl_page_index *page_index, uint8_t *page_ptr) 6250{ 6251 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6252 struct ctl_lun *lun; 6253 int set_ua; 6254 uint32_t initidx; 6255 6256 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6257 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6258 set_ua = 0; 6259 6260 user_cp = (struct scsi_caching_page *)page_ptr; 6261 current_cp = (struct scsi_caching_page *) 6262 (page_index->page_data + (page_index->page_len * 6263 CTL_PAGE_CURRENT)); 6264 saved_cp = (struct scsi_caching_page *) 6265 (page_index->page_data + (page_index->page_len * 6266 CTL_PAGE_SAVED)); 6267 6268 mtx_lock(&lun->lun_lock); 6269 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6270 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6271 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6272 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6273 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6274 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6275 set_ua = 1; 6276 } 6277 if (set_ua != 0) { 6278 int i; 6279 /* 6280 * Let other initiators know that the mode 6281 * parameters for this LUN have changed. 6282 */ 6283 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6284 if (i == initidx) 6285 continue; 6286 6287 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6288 } 6289 } 6290 mtx_unlock(&lun->lun_lock); 6291 6292 return (0); 6293} 6294 6295int 6296ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6297 struct ctl_page_index *page_index, uint8_t *page_ptr) 6298{ 6299 return (0); 6300} 6301 6302int 6303ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6304 struct ctl_page_index *page_index, int pc) 6305{ 6306 struct copan_power_subpage *page; 6307 6308 page = (struct copan_power_subpage *)page_index->page_data + 6309 (page_index->page_len * pc); 6310 6311 switch (pc) { 6312 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6313 /* 6314 * We don't update the changable bits for this page. 6315 */ 6316 break; 6317 case SMS_PAGE_CTRL_CURRENT >> 6: 6318 case SMS_PAGE_CTRL_DEFAULT >> 6: 6319 case SMS_PAGE_CTRL_SAVED >> 6: 6320#ifdef NEEDTOPORT 6321 ctl_update_power_subpage(page); 6322#endif 6323 break; 6324 default: 6325#ifdef NEEDTOPORT 6326 EPRINT(0, "Invalid PC %d!!", pc); 6327#endif 6328 break; 6329 } 6330 return (0); 6331} 6332 6333 6334int 6335ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6336 struct ctl_page_index *page_index, uint8_t *page_ptr) 6337{ 6338 struct copan_aps_subpage *user_sp; 6339 struct copan_aps_subpage *current_sp; 6340 union ctl_modepage_info *modepage_info; 6341 struct ctl_softc *softc; 6342 struct ctl_lun *lun; 6343 int retval; 6344 6345 retval = CTL_RETVAL_COMPLETE; 6346 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6347 (page_index->page_len * CTL_PAGE_CURRENT)); 6348 softc = control_softc; 6349 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6350 6351 user_sp = (struct copan_aps_subpage *)page_ptr; 6352 6353 modepage_info = (union ctl_modepage_info *) 6354 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6355 6356 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6357 modepage_info->header.subpage = page_index->subpage; 6358 modepage_info->aps.lock_active = user_sp->lock_active; 6359 6360 mtx_lock(&softc->ctl_lock); 6361 6362 /* 6363 * If there is a request to lock the LUN and another LUN is locked 6364 * this is an error. If the requested LUN is already locked ignore 6365 * the request. If no LUN is locked attempt to lock it. 6366 * if there is a request to unlock the LUN and the LUN is currently 6367 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6368 * if another LUN is locked or no LUN is locked. 6369 */ 6370 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6371 if (softc->aps_locked_lun == lun->lun) { 6372 /* 6373 * This LUN is already locked, so we're done. 6374 */ 6375 retval = CTL_RETVAL_COMPLETE; 6376 } else if (softc->aps_locked_lun == 0) { 6377 /* 6378 * No one has the lock, pass the request to the 6379 * backend. 6380 */ 6381 retval = lun->backend->config_write( 6382 (union ctl_io *)ctsio); 6383 } else { 6384 /* 6385 * Someone else has the lock, throw out the request. 6386 */ 6387 ctl_set_already_locked(ctsio); 6388 free(ctsio->kern_data_ptr, M_CTL); 6389 ctl_done((union ctl_io *)ctsio); 6390 6391 /* 6392 * Set the return value so that ctl_do_mode_select() 6393 * won't try to complete the command. We already 6394 * completed it here. 6395 */ 6396 retval = CTL_RETVAL_ERROR; 6397 } 6398 } else if (softc->aps_locked_lun == lun->lun) { 6399 /* 6400 * This LUN is locked, so pass the unlock request to the 6401 * backend. 6402 */ 6403 retval = lun->backend->config_write((union ctl_io *)ctsio); 6404 } 6405 mtx_unlock(&softc->ctl_lock); 6406 6407 return (retval); 6408} 6409 6410int 6411ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6412 struct ctl_page_index *page_index, 6413 uint8_t *page_ptr) 6414{ 6415 uint8_t *c; 6416 int i; 6417 6418 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6419 ctl_time_io_secs = 6420 (c[0] << 8) | 6421 (c[1] << 0) | 6422 0; 6423 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6424 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6425 printf("page data:"); 6426 for (i=0; i<8; i++) 6427 printf(" %.2x",page_ptr[i]); 6428 printf("\n"); 6429 return (0); 6430} 6431 6432int 6433ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6434 struct ctl_page_index *page_index, 6435 int pc) 6436{ 6437 struct copan_debugconf_subpage *page; 6438 6439 page = (struct copan_debugconf_subpage *)page_index->page_data + 6440 (page_index->page_len * pc); 6441 6442 switch (pc) { 6443 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6444 case SMS_PAGE_CTRL_DEFAULT >> 6: 6445 case SMS_PAGE_CTRL_SAVED >> 6: 6446 /* 6447 * We don't update the changable or default bits for this page. 6448 */ 6449 break; 6450 case SMS_PAGE_CTRL_CURRENT >> 6: 6451 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6452 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6453 break; 6454 default: 6455#ifdef NEEDTOPORT 6456 EPRINT(0, "Invalid PC %d!!", pc); 6457#endif /* NEEDTOPORT */ 6458 break; 6459 } 6460 return (0); 6461} 6462 6463 6464static int 6465ctl_do_mode_select(union ctl_io *io) 6466{ 6467 struct scsi_mode_page_header *page_header; 6468 struct ctl_page_index *page_index; 6469 struct ctl_scsiio *ctsio; 6470 int control_dev, page_len; 6471 int page_len_offset, page_len_size; 6472 union ctl_modepage_info *modepage_info; 6473 struct ctl_lun *lun; 6474 int *len_left, *len_used; 6475 int retval, i; 6476 6477 ctsio = &io->scsiio; 6478 page_index = NULL; 6479 page_len = 0; 6480 retval = CTL_RETVAL_COMPLETE; 6481 6482 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6483 6484 if (lun->be_lun->lun_type != T_DIRECT) 6485 control_dev = 1; 6486 else 6487 control_dev = 0; 6488 6489 modepage_info = (union ctl_modepage_info *) 6490 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6491 len_left = &modepage_info->header.len_left; 6492 len_used = &modepage_info->header.len_used; 6493 6494do_next_page: 6495 6496 page_header = (struct scsi_mode_page_header *) 6497 (ctsio->kern_data_ptr + *len_used); 6498 6499 if (*len_left == 0) { 6500 free(ctsio->kern_data_ptr, M_CTL); 6501 ctl_set_success(ctsio); 6502 ctl_done((union ctl_io *)ctsio); 6503 return (CTL_RETVAL_COMPLETE); 6504 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6505 6506 free(ctsio->kern_data_ptr, M_CTL); 6507 ctl_set_param_len_error(ctsio); 6508 ctl_done((union ctl_io *)ctsio); 6509 return (CTL_RETVAL_COMPLETE); 6510 6511 } else if ((page_header->page_code & SMPH_SPF) 6512 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6513 6514 free(ctsio->kern_data_ptr, M_CTL); 6515 ctl_set_param_len_error(ctsio); 6516 ctl_done((union ctl_io *)ctsio); 6517 return (CTL_RETVAL_COMPLETE); 6518 } 6519 6520 6521 /* 6522 * XXX KDM should we do something with the block descriptor? 6523 */ 6524 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6525 6526 if ((control_dev != 0) 6527 && (lun->mode_pages.index[i].page_flags & 6528 CTL_PAGE_FLAG_DISK_ONLY)) 6529 continue; 6530 6531 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6532 (page_header->page_code & SMPH_PC_MASK)) 6533 continue; 6534 6535 /* 6536 * If neither page has a subpage code, then we've got a 6537 * match. 6538 */ 6539 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6540 && ((page_header->page_code & SMPH_SPF) == 0)) { 6541 page_index = &lun->mode_pages.index[i]; 6542 page_len = page_header->page_length; 6543 break; 6544 } 6545 6546 /* 6547 * If both pages have subpages, then the subpage numbers 6548 * have to match. 6549 */ 6550 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6551 && (page_header->page_code & SMPH_SPF)) { 6552 struct scsi_mode_page_header_sp *sph; 6553 6554 sph = (struct scsi_mode_page_header_sp *)page_header; 6555 6556 if (lun->mode_pages.index[i].subpage == 6557 sph->subpage) { 6558 page_index = &lun->mode_pages.index[i]; 6559 page_len = scsi_2btoul(sph->page_length); 6560 break; 6561 } 6562 } 6563 } 6564 6565 /* 6566 * If we couldn't find the page, or if we don't have a mode select 6567 * handler for it, send back an error to the user. 6568 */ 6569 if ((page_index == NULL) 6570 || (page_index->select_handler == NULL)) { 6571 ctl_set_invalid_field(ctsio, 6572 /*sks_valid*/ 1, 6573 /*command*/ 0, 6574 /*field*/ *len_used, 6575 /*bit_valid*/ 0, 6576 /*bit*/ 0); 6577 free(ctsio->kern_data_ptr, M_CTL); 6578 ctl_done((union ctl_io *)ctsio); 6579 return (CTL_RETVAL_COMPLETE); 6580 } 6581 6582 if (page_index->page_code & SMPH_SPF) { 6583 page_len_offset = 2; 6584 page_len_size = 2; 6585 } else { 6586 page_len_size = 1; 6587 page_len_offset = 1; 6588 } 6589 6590 /* 6591 * If the length the initiator gives us isn't the one we specify in 6592 * the mode page header, or if they didn't specify enough data in 6593 * the CDB to avoid truncating this page, kick out the request. 6594 */ 6595 if ((page_len != (page_index->page_len - page_len_offset - 6596 page_len_size)) 6597 || (*len_left < page_index->page_len)) { 6598 6599 6600 ctl_set_invalid_field(ctsio, 6601 /*sks_valid*/ 1, 6602 /*command*/ 0, 6603 /*field*/ *len_used + page_len_offset, 6604 /*bit_valid*/ 0, 6605 /*bit*/ 0); 6606 free(ctsio->kern_data_ptr, M_CTL); 6607 ctl_done((union ctl_io *)ctsio); 6608 return (CTL_RETVAL_COMPLETE); 6609 } 6610 6611 /* 6612 * Run through the mode page, checking to make sure that the bits 6613 * the user changed are actually legal for him to change. 6614 */ 6615 for (i = 0; i < page_index->page_len; i++) { 6616 uint8_t *user_byte, *change_mask, *current_byte; 6617 int bad_bit; 6618 int j; 6619 6620 user_byte = (uint8_t *)page_header + i; 6621 change_mask = page_index->page_data + 6622 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6623 current_byte = page_index->page_data + 6624 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6625 6626 /* 6627 * Check to see whether the user set any bits in this byte 6628 * that he is not allowed to set. 6629 */ 6630 if ((*user_byte & ~(*change_mask)) == 6631 (*current_byte & ~(*change_mask))) 6632 continue; 6633 6634 /* 6635 * Go through bit by bit to determine which one is illegal. 6636 */ 6637 bad_bit = 0; 6638 for (j = 7; j >= 0; j--) { 6639 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6640 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6641 bad_bit = i; 6642 break; 6643 } 6644 } 6645 ctl_set_invalid_field(ctsio, 6646 /*sks_valid*/ 1, 6647 /*command*/ 0, 6648 /*field*/ *len_used + i, 6649 /*bit_valid*/ 1, 6650 /*bit*/ bad_bit); 6651 free(ctsio->kern_data_ptr, M_CTL); 6652 ctl_done((union ctl_io *)ctsio); 6653 return (CTL_RETVAL_COMPLETE); 6654 } 6655 6656 /* 6657 * Decrement these before we call the page handler, since we may 6658 * end up getting called back one way or another before the handler 6659 * returns to this context. 6660 */ 6661 *len_left -= page_index->page_len; 6662 *len_used += page_index->page_len; 6663 6664 retval = page_index->select_handler(ctsio, page_index, 6665 (uint8_t *)page_header); 6666 6667 /* 6668 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6669 * wait until this queued command completes to finish processing 6670 * the mode page. If it returns anything other than 6671 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6672 * already set the sense information, freed the data pointer, and 6673 * completed the io for us. 6674 */ 6675 if (retval != CTL_RETVAL_COMPLETE) 6676 goto bailout_no_done; 6677 6678 /* 6679 * If the initiator sent us more than one page, parse the next one. 6680 */ 6681 if (*len_left > 0) 6682 goto do_next_page; 6683 6684 ctl_set_success(ctsio); 6685 free(ctsio->kern_data_ptr, M_CTL); 6686 ctl_done((union ctl_io *)ctsio); 6687 6688bailout_no_done: 6689 6690 return (CTL_RETVAL_COMPLETE); 6691 6692} 6693 6694int 6695ctl_mode_select(struct ctl_scsiio *ctsio) 6696{ 6697 int param_len, pf, sp; 6698 int header_size, bd_len; 6699 int len_left, len_used; 6700 struct ctl_page_index *page_index; 6701 struct ctl_lun *lun; 6702 int control_dev, page_len; 6703 union ctl_modepage_info *modepage_info; 6704 int retval; 6705 6706 pf = 0; 6707 sp = 0; 6708 page_len = 0; 6709 len_used = 0; 6710 len_left = 0; 6711 retval = 0; 6712 bd_len = 0; 6713 page_index = NULL; 6714 6715 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6716 6717 if (lun->be_lun->lun_type != T_DIRECT) 6718 control_dev = 1; 6719 else 6720 control_dev = 0; 6721 6722 switch (ctsio->cdb[0]) { 6723 case MODE_SELECT_6: { 6724 struct scsi_mode_select_6 *cdb; 6725 6726 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6727 6728 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6729 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6730 6731 param_len = cdb->length; 6732 header_size = sizeof(struct scsi_mode_header_6); 6733 break; 6734 } 6735 case MODE_SELECT_10: { 6736 struct scsi_mode_select_10 *cdb; 6737 6738 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6739 6740 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6741 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6742 6743 param_len = scsi_2btoul(cdb->length); 6744 header_size = sizeof(struct scsi_mode_header_10); 6745 break; 6746 } 6747 default: 6748 ctl_set_invalid_opcode(ctsio); 6749 ctl_done((union ctl_io *)ctsio); 6750 return (CTL_RETVAL_COMPLETE); 6751 break; /* NOTREACHED */ 6752 } 6753 6754 /* 6755 * From SPC-3: 6756 * "A parameter list length of zero indicates that the Data-Out Buffer 6757 * shall be empty. This condition shall not be considered as an error." 6758 */ 6759 if (param_len == 0) { 6760 ctl_set_success(ctsio); 6761 ctl_done((union ctl_io *)ctsio); 6762 return (CTL_RETVAL_COMPLETE); 6763 } 6764 6765 /* 6766 * Since we'll hit this the first time through, prior to 6767 * allocation, we don't need to free a data buffer here. 6768 */ 6769 if (param_len < header_size) { 6770 ctl_set_param_len_error(ctsio); 6771 ctl_done((union ctl_io *)ctsio); 6772 return (CTL_RETVAL_COMPLETE); 6773 } 6774 6775 /* 6776 * Allocate the data buffer and grab the user's data. In theory, 6777 * we shouldn't have to sanity check the parameter list length here 6778 * because the maximum size is 64K. We should be able to malloc 6779 * that much without too many problems. 6780 */ 6781 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6782 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6783 ctsio->kern_data_len = param_len; 6784 ctsio->kern_total_len = param_len; 6785 ctsio->kern_data_resid = 0; 6786 ctsio->kern_rel_offset = 0; 6787 ctsio->kern_sg_entries = 0; 6788 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6789 ctsio->be_move_done = ctl_config_move_done; 6790 ctl_datamove((union ctl_io *)ctsio); 6791 6792 return (CTL_RETVAL_COMPLETE); 6793 } 6794 6795 switch (ctsio->cdb[0]) { 6796 case MODE_SELECT_6: { 6797 struct scsi_mode_header_6 *mh6; 6798 6799 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6800 bd_len = mh6->blk_desc_len; 6801 break; 6802 } 6803 case MODE_SELECT_10: { 6804 struct scsi_mode_header_10 *mh10; 6805 6806 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6807 bd_len = scsi_2btoul(mh10->blk_desc_len); 6808 break; 6809 } 6810 default: 6811 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6812 break; 6813 } 6814 6815 if (param_len < (header_size + bd_len)) { 6816 free(ctsio->kern_data_ptr, M_CTL); 6817 ctl_set_param_len_error(ctsio); 6818 ctl_done((union ctl_io *)ctsio); 6819 return (CTL_RETVAL_COMPLETE); 6820 } 6821 6822 /* 6823 * Set the IO_CONT flag, so that if this I/O gets passed to 6824 * ctl_config_write_done(), it'll get passed back to 6825 * ctl_do_mode_select() for further processing, or completion if 6826 * we're all done. 6827 */ 6828 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6829 ctsio->io_cont = ctl_do_mode_select; 6830 6831 modepage_info = (union ctl_modepage_info *) 6832 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6833 6834 memset(modepage_info, 0, sizeof(*modepage_info)); 6835 6836 len_left = param_len - header_size - bd_len; 6837 len_used = header_size + bd_len; 6838 6839 modepage_info->header.len_left = len_left; 6840 modepage_info->header.len_used = len_used; 6841 6842 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6843} 6844 6845int 6846ctl_mode_sense(struct ctl_scsiio *ctsio) 6847{ 6848 struct ctl_lun *lun; 6849 int pc, page_code, dbd, llba, subpage; 6850 int alloc_len, page_len, header_len, total_len; 6851 struct scsi_mode_block_descr *block_desc; 6852 struct ctl_page_index *page_index; 6853 int control_dev; 6854 6855 dbd = 0; 6856 llba = 0; 6857 block_desc = NULL; 6858 page_index = NULL; 6859 6860 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6861 6862 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6863 6864 if (lun->be_lun->lun_type != T_DIRECT) 6865 control_dev = 1; 6866 else 6867 control_dev = 0; 6868 6869 if (lun->flags & CTL_LUN_PR_RESERVED) { 6870 uint32_t residx; 6871 6872 /* 6873 * XXX KDM need a lock here. 6874 */ 6875 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6876 if ((lun->res_type == SPR_TYPE_EX_AC 6877 && residx != lun->pr_res_idx) 6878 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6879 || lun->res_type == SPR_TYPE_EX_AC_AR) 6880 && !lun->per_res[residx].registered)) { 6881 ctl_set_reservation_conflict(ctsio); 6882 ctl_done((union ctl_io *)ctsio); 6883 return (CTL_RETVAL_COMPLETE); 6884 } 6885 } 6886 6887 switch (ctsio->cdb[0]) { 6888 case MODE_SENSE_6: { 6889 struct scsi_mode_sense_6 *cdb; 6890 6891 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6892 6893 header_len = sizeof(struct scsi_mode_hdr_6); 6894 if (cdb->byte2 & SMS_DBD) 6895 dbd = 1; 6896 else 6897 header_len += sizeof(struct scsi_mode_block_descr); 6898 6899 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6900 page_code = cdb->page & SMS_PAGE_CODE; 6901 subpage = cdb->subpage; 6902 alloc_len = cdb->length; 6903 break; 6904 } 6905 case MODE_SENSE_10: { 6906 struct scsi_mode_sense_10 *cdb; 6907 6908 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6909 6910 header_len = sizeof(struct scsi_mode_hdr_10); 6911 6912 if (cdb->byte2 & SMS_DBD) 6913 dbd = 1; 6914 else 6915 header_len += sizeof(struct scsi_mode_block_descr); 6916 if (cdb->byte2 & SMS10_LLBAA) 6917 llba = 1; 6918 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6919 page_code = cdb->page & SMS_PAGE_CODE; 6920 subpage = cdb->subpage; 6921 alloc_len = scsi_2btoul(cdb->length); 6922 break; 6923 } 6924 default: 6925 ctl_set_invalid_opcode(ctsio); 6926 ctl_done((union ctl_io *)ctsio); 6927 return (CTL_RETVAL_COMPLETE); 6928 break; /* NOTREACHED */ 6929 } 6930 6931 /* 6932 * We have to make a first pass through to calculate the size of 6933 * the pages that match the user's query. Then we allocate enough 6934 * memory to hold it, and actually copy the data into the buffer. 6935 */ 6936 switch (page_code) { 6937 case SMS_ALL_PAGES_PAGE: { 6938 int i; 6939 6940 page_len = 0; 6941 6942 /* 6943 * At the moment, values other than 0 and 0xff here are 6944 * reserved according to SPC-3. 6945 */ 6946 if ((subpage != SMS_SUBPAGE_PAGE_0) 6947 && (subpage != SMS_SUBPAGE_ALL)) { 6948 ctl_set_invalid_field(ctsio, 6949 /*sks_valid*/ 1, 6950 /*command*/ 1, 6951 /*field*/ 3, 6952 /*bit_valid*/ 0, 6953 /*bit*/ 0); 6954 ctl_done((union ctl_io *)ctsio); 6955 return (CTL_RETVAL_COMPLETE); 6956 } 6957 6958 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6959 if ((control_dev != 0) 6960 && (lun->mode_pages.index[i].page_flags & 6961 CTL_PAGE_FLAG_DISK_ONLY)) 6962 continue; 6963 6964 /* 6965 * We don't use this subpage if the user didn't 6966 * request all subpages. 6967 */ 6968 if ((lun->mode_pages.index[i].subpage != 0) 6969 && (subpage == SMS_SUBPAGE_PAGE_0)) 6970 continue; 6971 6972#if 0 6973 printf("found page %#x len %d\n", 6974 lun->mode_pages.index[i].page_code & 6975 SMPH_PC_MASK, 6976 lun->mode_pages.index[i].page_len); 6977#endif 6978 page_len += lun->mode_pages.index[i].page_len; 6979 } 6980 break; 6981 } 6982 default: { 6983 int i; 6984 6985 page_len = 0; 6986 6987 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6988 /* Look for the right page code */ 6989 if ((lun->mode_pages.index[i].page_code & 6990 SMPH_PC_MASK) != page_code) 6991 continue; 6992 6993 /* Look for the right subpage or the subpage wildcard*/ 6994 if ((lun->mode_pages.index[i].subpage != subpage) 6995 && (subpage != SMS_SUBPAGE_ALL)) 6996 continue; 6997 6998 /* Make sure the page is supported for this dev type */ 6999 if ((control_dev != 0) 7000 && (lun->mode_pages.index[i].page_flags & 7001 CTL_PAGE_FLAG_DISK_ONLY)) 7002 continue; 7003 7004#if 0 7005 printf("found page %#x len %d\n", 7006 lun->mode_pages.index[i].page_code & 7007 SMPH_PC_MASK, 7008 lun->mode_pages.index[i].page_len); 7009#endif 7010 7011 page_len += lun->mode_pages.index[i].page_len; 7012 } 7013 7014 if (page_len == 0) { 7015 ctl_set_invalid_field(ctsio, 7016 /*sks_valid*/ 1, 7017 /*command*/ 1, 7018 /*field*/ 2, 7019 /*bit_valid*/ 1, 7020 /*bit*/ 5); 7021 ctl_done((union ctl_io *)ctsio); 7022 return (CTL_RETVAL_COMPLETE); 7023 } 7024 break; 7025 } 7026 } 7027 7028 total_len = header_len + page_len; 7029#if 0 7030 printf("header_len = %d, page_len = %d, total_len = %d\n", 7031 header_len, page_len, total_len); 7032#endif 7033 7034 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7035 ctsio->kern_sg_entries = 0; 7036 ctsio->kern_data_resid = 0; 7037 ctsio->kern_rel_offset = 0; 7038 if (total_len < alloc_len) { 7039 ctsio->residual = alloc_len - total_len; 7040 ctsio->kern_data_len = total_len; 7041 ctsio->kern_total_len = total_len; 7042 } else { 7043 ctsio->residual = 0; 7044 ctsio->kern_data_len = alloc_len; 7045 ctsio->kern_total_len = alloc_len; 7046 } 7047 7048 switch (ctsio->cdb[0]) { 7049 case MODE_SENSE_6: { 7050 struct scsi_mode_hdr_6 *header; 7051 7052 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7053 7054 header->datalen = ctl_min(total_len - 1, 254); 7055 if (control_dev == 0) 7056 header->dev_specific = 0x10; /* DPOFUA */ 7057 if (dbd) 7058 header->block_descr_len = 0; 7059 else 7060 header->block_descr_len = 7061 sizeof(struct scsi_mode_block_descr); 7062 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7063 break; 7064 } 7065 case MODE_SENSE_10: { 7066 struct scsi_mode_hdr_10 *header; 7067 int datalen; 7068 7069 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7070 7071 datalen = ctl_min(total_len - 2, 65533); 7072 scsi_ulto2b(datalen, header->datalen); 7073 if (control_dev == 0) 7074 header->dev_specific = 0x10; /* DPOFUA */ 7075 if (dbd) 7076 scsi_ulto2b(0, header->block_descr_len); 7077 else 7078 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7079 header->block_descr_len); 7080 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7081 break; 7082 } 7083 default: 7084 panic("invalid CDB type %#x", ctsio->cdb[0]); 7085 break; /* NOTREACHED */ 7086 } 7087 7088 /* 7089 * If we've got a disk, use its blocksize in the block 7090 * descriptor. Otherwise, just set it to 0. 7091 */ 7092 if (dbd == 0) { 7093 if (control_dev == 0) 7094 scsi_ulto3b(lun->be_lun->blocksize, 7095 block_desc->block_len); 7096 else 7097 scsi_ulto3b(0, block_desc->block_len); 7098 } 7099 7100 switch (page_code) { 7101 case SMS_ALL_PAGES_PAGE: { 7102 int i, data_used; 7103 7104 data_used = header_len; 7105 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7106 struct ctl_page_index *page_index; 7107 7108 page_index = &lun->mode_pages.index[i]; 7109 7110 if ((control_dev != 0) 7111 && (page_index->page_flags & 7112 CTL_PAGE_FLAG_DISK_ONLY)) 7113 continue; 7114 7115 /* 7116 * We don't use this subpage if the user didn't 7117 * request all subpages. We already checked (above) 7118 * to make sure the user only specified a subpage 7119 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7120 */ 7121 if ((page_index->subpage != 0) 7122 && (subpage == SMS_SUBPAGE_PAGE_0)) 7123 continue; 7124 7125 /* 7126 * Call the handler, if it exists, to update the 7127 * page to the latest values. 7128 */ 7129 if (page_index->sense_handler != NULL) 7130 page_index->sense_handler(ctsio, page_index,pc); 7131 7132 memcpy(ctsio->kern_data_ptr + data_used, 7133 page_index->page_data + 7134 (page_index->page_len * pc), 7135 page_index->page_len); 7136 data_used += page_index->page_len; 7137 } 7138 break; 7139 } 7140 default: { 7141 int i, data_used; 7142 7143 data_used = header_len; 7144 7145 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7146 struct ctl_page_index *page_index; 7147 7148 page_index = &lun->mode_pages.index[i]; 7149 7150 /* Look for the right page code */ 7151 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7152 continue; 7153 7154 /* Look for the right subpage or the subpage wildcard*/ 7155 if ((page_index->subpage != subpage) 7156 && (subpage != SMS_SUBPAGE_ALL)) 7157 continue; 7158 7159 /* Make sure the page is supported for this dev type */ 7160 if ((control_dev != 0) 7161 && (page_index->page_flags & 7162 CTL_PAGE_FLAG_DISK_ONLY)) 7163 continue; 7164 7165 /* 7166 * Call the handler, if it exists, to update the 7167 * page to the latest values. 7168 */ 7169 if (page_index->sense_handler != NULL) 7170 page_index->sense_handler(ctsio, page_index,pc); 7171 7172 memcpy(ctsio->kern_data_ptr + data_used, 7173 page_index->page_data + 7174 (page_index->page_len * pc), 7175 page_index->page_len); 7176 data_used += page_index->page_len; 7177 } 7178 break; 7179 } 7180 } 7181 7182 ctsio->scsi_status = SCSI_STATUS_OK; 7183 7184 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7185 ctsio->be_move_done = ctl_config_move_done; 7186 ctl_datamove((union ctl_io *)ctsio); 7187 7188 return (CTL_RETVAL_COMPLETE); 7189} 7190 7191int 7192ctl_read_capacity(struct ctl_scsiio *ctsio) 7193{ 7194 struct scsi_read_capacity *cdb; 7195 struct scsi_read_capacity_data *data; 7196 struct ctl_lun *lun; 7197 uint32_t lba; 7198 7199 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7200 7201 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7202 7203 lba = scsi_4btoul(cdb->addr); 7204 if (((cdb->pmi & SRC_PMI) == 0) 7205 && (lba != 0)) { 7206 ctl_set_invalid_field(/*ctsio*/ ctsio, 7207 /*sks_valid*/ 1, 7208 /*command*/ 1, 7209 /*field*/ 2, 7210 /*bit_valid*/ 0, 7211 /*bit*/ 0); 7212 ctl_done((union ctl_io *)ctsio); 7213 return (CTL_RETVAL_COMPLETE); 7214 } 7215 7216 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7217 7218 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7219 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7220 ctsio->residual = 0; 7221 ctsio->kern_data_len = sizeof(*data); 7222 ctsio->kern_total_len = sizeof(*data); 7223 ctsio->kern_data_resid = 0; 7224 ctsio->kern_rel_offset = 0; 7225 ctsio->kern_sg_entries = 0; 7226 7227 /* 7228 * If the maximum LBA is greater than 0xfffffffe, the user must 7229 * issue a SERVICE ACTION IN (16) command, with the read capacity 7230 * serivce action set. 7231 */ 7232 if (lun->be_lun->maxlba > 0xfffffffe) 7233 scsi_ulto4b(0xffffffff, data->addr); 7234 else 7235 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7236 7237 /* 7238 * XXX KDM this may not be 512 bytes... 7239 */ 7240 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7241 7242 ctsio->scsi_status = SCSI_STATUS_OK; 7243 7244 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7245 ctsio->be_move_done = ctl_config_move_done; 7246 ctl_datamove((union ctl_io *)ctsio); 7247 7248 return (CTL_RETVAL_COMPLETE); 7249} 7250 7251int 7252ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7253{ 7254 struct scsi_read_capacity_16 *cdb; 7255 struct scsi_read_capacity_data_long *data; 7256 struct ctl_lun *lun; 7257 uint64_t lba; 7258 uint32_t alloc_len; 7259 7260 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7261 7262 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7263 7264 alloc_len = scsi_4btoul(cdb->alloc_len); 7265 lba = scsi_8btou64(cdb->addr); 7266 7267 if ((cdb->reladr & SRC16_PMI) 7268 && (lba != 0)) { 7269 ctl_set_invalid_field(/*ctsio*/ ctsio, 7270 /*sks_valid*/ 1, 7271 /*command*/ 1, 7272 /*field*/ 2, 7273 /*bit_valid*/ 0, 7274 /*bit*/ 0); 7275 ctl_done((union ctl_io *)ctsio); 7276 return (CTL_RETVAL_COMPLETE); 7277 } 7278 7279 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7280 7281 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7282 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7283 7284 if (sizeof(*data) < alloc_len) { 7285 ctsio->residual = alloc_len - sizeof(*data); 7286 ctsio->kern_data_len = sizeof(*data); 7287 ctsio->kern_total_len = sizeof(*data); 7288 } else { 7289 ctsio->residual = 0; 7290 ctsio->kern_data_len = alloc_len; 7291 ctsio->kern_total_len = alloc_len; 7292 } 7293 ctsio->kern_data_resid = 0; 7294 ctsio->kern_rel_offset = 0; 7295 ctsio->kern_sg_entries = 0; 7296 7297 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7298 /* XXX KDM this may not be 512 bytes... */ 7299 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7300 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7301 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7302 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7303 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7304 7305 ctsio->scsi_status = SCSI_STATUS_OK; 7306 7307 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7308 ctsio->be_move_done = ctl_config_move_done; 7309 ctl_datamove((union ctl_io *)ctsio); 7310 7311 return (CTL_RETVAL_COMPLETE); 7312} 7313 7314int 7315ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7316{ 7317 struct scsi_maintenance_in *cdb; 7318 int retval; 7319 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7320 int num_target_port_groups, num_target_ports, single; 7321 struct ctl_lun *lun; 7322 struct ctl_softc *softc; 7323 struct ctl_port *port; 7324 struct scsi_target_group_data *rtg_ptr; 7325 struct scsi_target_group_data_extended *rtg_ext_ptr; 7326 struct scsi_target_port_group_descriptor *tpg_desc; 7327 7328 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7329 7330 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7331 softc = control_softc; 7332 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7333 7334 retval = CTL_RETVAL_COMPLETE; 7335 7336 switch (cdb->byte2 & STG_PDF_MASK) { 7337 case STG_PDF_LENGTH: 7338 ext = 0; 7339 break; 7340 case STG_PDF_EXTENDED: 7341 ext = 1; 7342 break; 7343 default: 7344 ctl_set_invalid_field(/*ctsio*/ ctsio, 7345 /*sks_valid*/ 1, 7346 /*command*/ 1, 7347 /*field*/ 2, 7348 /*bit_valid*/ 1, 7349 /*bit*/ 5); 7350 ctl_done((union ctl_io *)ctsio); 7351 return(retval); 7352 } 7353 7354 single = ctl_is_single; 7355 if (single) 7356 num_target_port_groups = 1; 7357 else 7358 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7359 num_target_ports = 0; 7360 mtx_lock(&softc->ctl_lock); 7361 STAILQ_FOREACH(port, &softc->port_list, links) { 7362 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7363 continue; 7364 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7365 continue; 7366 num_target_ports++; 7367 } 7368 mtx_unlock(&softc->ctl_lock); 7369 7370 if (ext) 7371 total_len = sizeof(struct scsi_target_group_data_extended); 7372 else 7373 total_len = sizeof(struct scsi_target_group_data); 7374 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7375 num_target_port_groups + 7376 sizeof(struct scsi_target_port_descriptor) * 7377 num_target_ports * num_target_port_groups; 7378 7379 alloc_len = scsi_4btoul(cdb->length); 7380 7381 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7382 7383 ctsio->kern_sg_entries = 0; 7384 7385 if (total_len < alloc_len) { 7386 ctsio->residual = alloc_len - total_len; 7387 ctsio->kern_data_len = total_len; 7388 ctsio->kern_total_len = total_len; 7389 } else { 7390 ctsio->residual = 0; 7391 ctsio->kern_data_len = alloc_len; 7392 ctsio->kern_total_len = alloc_len; 7393 } 7394 ctsio->kern_data_resid = 0; 7395 ctsio->kern_rel_offset = 0; 7396 7397 if (ext) { 7398 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7399 ctsio->kern_data_ptr; 7400 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7401 rtg_ext_ptr->format_type = 0x10; 7402 rtg_ext_ptr->implicit_transition_time = 0; 7403 tpg_desc = &rtg_ext_ptr->groups[0]; 7404 } else { 7405 rtg_ptr = (struct scsi_target_group_data *) 7406 ctsio->kern_data_ptr; 7407 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7408 tpg_desc = &rtg_ptr->groups[0]; 7409 } 7410 7411 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7412 mtx_lock(&softc->ctl_lock); 7413 for (g = 0; g < num_target_port_groups; g++) { 7414 if (g == pg) 7415 tpg_desc->pref_state = TPG_PRIMARY | 7416 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7417 else 7418 tpg_desc->pref_state = 7419 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7420 tpg_desc->support = TPG_AO_SUP; 7421 if (!single) 7422 tpg_desc->support |= TPG_AN_SUP; 7423 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7424 tpg_desc->status = TPG_IMPLICIT; 7425 pc = 0; 7426 STAILQ_FOREACH(port, &softc->port_list, links) { 7427 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7428 continue; 7429 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7430 CTL_MAX_LUNS) 7431 continue; 7432 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7433 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7434 relative_target_port_identifier); 7435 pc++; 7436 } 7437 tpg_desc->target_port_count = pc; 7438 tpg_desc = (struct scsi_target_port_group_descriptor *) 7439 &tpg_desc->descriptors[pc]; 7440 } 7441 mtx_unlock(&softc->ctl_lock); 7442 7443 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7444 ctsio->be_move_done = ctl_config_move_done; 7445 7446 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7447 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7448 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7449 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7450 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7451 7452 ctl_datamove((union ctl_io *)ctsio); 7453 return(retval); 7454} 7455 7456int 7457ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7458{ 7459 struct ctl_lun *lun; 7460 struct scsi_report_supported_opcodes *cdb; 7461 const struct ctl_cmd_entry *entry, *sentry; 7462 struct scsi_report_supported_opcodes_all *all; 7463 struct scsi_report_supported_opcodes_descr *descr; 7464 struct scsi_report_supported_opcodes_one *one; 7465 int retval; 7466 int alloc_len, total_len; 7467 int opcode, service_action, i, j, num; 7468 7469 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7470 7471 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7472 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7473 7474 retval = CTL_RETVAL_COMPLETE; 7475 7476 opcode = cdb->requested_opcode; 7477 service_action = scsi_2btoul(cdb->requested_service_action); 7478 switch (cdb->options & RSO_OPTIONS_MASK) { 7479 case RSO_OPTIONS_ALL: 7480 num = 0; 7481 for (i = 0; i < 256; i++) { 7482 entry = &ctl_cmd_table[i]; 7483 if (entry->flags & CTL_CMD_FLAG_SA5) { 7484 for (j = 0; j < 32; j++) { 7485 sentry = &((const struct ctl_cmd_entry *) 7486 entry->execute)[j]; 7487 if (ctl_cmd_applicable( 7488 lun->be_lun->lun_type, sentry)) 7489 num++; 7490 } 7491 } else { 7492 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7493 entry)) 7494 num++; 7495 } 7496 } 7497 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7498 num * sizeof(struct scsi_report_supported_opcodes_descr); 7499 break; 7500 case RSO_OPTIONS_OC: 7501 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7502 ctl_set_invalid_field(/*ctsio*/ ctsio, 7503 /*sks_valid*/ 1, 7504 /*command*/ 1, 7505 /*field*/ 2, 7506 /*bit_valid*/ 1, 7507 /*bit*/ 2); 7508 ctl_done((union ctl_io *)ctsio); 7509 return (CTL_RETVAL_COMPLETE); 7510 } 7511 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7512 break; 7513 case RSO_OPTIONS_OC_SA: 7514 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7515 service_action >= 32) { 7516 ctl_set_invalid_field(/*ctsio*/ ctsio, 7517 /*sks_valid*/ 1, 7518 /*command*/ 1, 7519 /*field*/ 2, 7520 /*bit_valid*/ 1, 7521 /*bit*/ 2); 7522 ctl_done((union ctl_io *)ctsio); 7523 return (CTL_RETVAL_COMPLETE); 7524 } 7525 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7526 break; 7527 default: 7528 ctl_set_invalid_field(/*ctsio*/ ctsio, 7529 /*sks_valid*/ 1, 7530 /*command*/ 1, 7531 /*field*/ 2, 7532 /*bit_valid*/ 1, 7533 /*bit*/ 2); 7534 ctl_done((union ctl_io *)ctsio); 7535 return (CTL_RETVAL_COMPLETE); 7536 } 7537 7538 alloc_len = scsi_4btoul(cdb->length); 7539 7540 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7541 7542 ctsio->kern_sg_entries = 0; 7543 7544 if (total_len < alloc_len) { 7545 ctsio->residual = alloc_len - total_len; 7546 ctsio->kern_data_len = total_len; 7547 ctsio->kern_total_len = total_len; 7548 } else { 7549 ctsio->residual = 0; 7550 ctsio->kern_data_len = alloc_len; 7551 ctsio->kern_total_len = alloc_len; 7552 } 7553 ctsio->kern_data_resid = 0; 7554 ctsio->kern_rel_offset = 0; 7555 7556 switch (cdb->options & RSO_OPTIONS_MASK) { 7557 case RSO_OPTIONS_ALL: 7558 all = (struct scsi_report_supported_opcodes_all *) 7559 ctsio->kern_data_ptr; 7560 num = 0; 7561 for (i = 0; i < 256; i++) { 7562 entry = &ctl_cmd_table[i]; 7563 if (entry->flags & CTL_CMD_FLAG_SA5) { 7564 for (j = 0; j < 32; j++) { 7565 sentry = &((const struct ctl_cmd_entry *) 7566 entry->execute)[j]; 7567 if (!ctl_cmd_applicable( 7568 lun->be_lun->lun_type, sentry)) 7569 continue; 7570 descr = &all->descr[num++]; 7571 descr->opcode = i; 7572 scsi_ulto2b(j, descr->service_action); 7573 descr->flags = RSO_SERVACTV; 7574 scsi_ulto2b(sentry->length, 7575 descr->cdb_length); 7576 } 7577 } else { 7578 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7579 entry)) 7580 continue; 7581 descr = &all->descr[num++]; 7582 descr->opcode = i; 7583 scsi_ulto2b(0, descr->service_action); 7584 descr->flags = 0; 7585 scsi_ulto2b(entry->length, descr->cdb_length); 7586 } 7587 } 7588 scsi_ulto4b( 7589 num * sizeof(struct scsi_report_supported_opcodes_descr), 7590 all->length); 7591 break; 7592 case RSO_OPTIONS_OC: 7593 one = (struct scsi_report_supported_opcodes_one *) 7594 ctsio->kern_data_ptr; 7595 entry = &ctl_cmd_table[opcode]; 7596 goto fill_one; 7597 case RSO_OPTIONS_OC_SA: 7598 one = (struct scsi_report_supported_opcodes_one *) 7599 ctsio->kern_data_ptr; 7600 entry = &ctl_cmd_table[opcode]; 7601 entry = &((const struct ctl_cmd_entry *) 7602 entry->execute)[service_action]; 7603fill_one: 7604 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7605 one->support = 3; 7606 scsi_ulto2b(entry->length, one->cdb_length); 7607 one->cdb_usage[0] = opcode; 7608 memcpy(&one->cdb_usage[1], entry->usage, 7609 entry->length - 1); 7610 } else 7611 one->support = 1; 7612 break; 7613 } 7614 7615 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7616 ctsio->be_move_done = ctl_config_move_done; 7617 7618 ctl_datamove((union ctl_io *)ctsio); 7619 return(retval); 7620} 7621 7622int 7623ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7624{ 7625 struct ctl_lun *lun; 7626 struct scsi_report_supported_tmf *cdb; 7627 struct scsi_report_supported_tmf_data *data; 7628 int retval; 7629 int alloc_len, total_len; 7630 7631 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7632 7633 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7634 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7635 7636 retval = CTL_RETVAL_COMPLETE; 7637 7638 total_len = sizeof(struct scsi_report_supported_tmf_data); 7639 alloc_len = scsi_4btoul(cdb->length); 7640 7641 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7642 7643 ctsio->kern_sg_entries = 0; 7644 7645 if (total_len < alloc_len) { 7646 ctsio->residual = alloc_len - total_len; 7647 ctsio->kern_data_len = total_len; 7648 ctsio->kern_total_len = total_len; 7649 } else { 7650 ctsio->residual = 0; 7651 ctsio->kern_data_len = alloc_len; 7652 ctsio->kern_total_len = alloc_len; 7653 } 7654 ctsio->kern_data_resid = 0; 7655 ctsio->kern_rel_offset = 0; 7656 7657 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7658 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7659 data->byte2 |= RST_ITNRS; 7660 7661 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7662 ctsio->be_move_done = ctl_config_move_done; 7663 7664 ctl_datamove((union ctl_io *)ctsio); 7665 return (retval); 7666} 7667 7668int 7669ctl_report_timestamp(struct ctl_scsiio *ctsio) 7670{ 7671 struct ctl_lun *lun; 7672 struct scsi_report_timestamp *cdb; 7673 struct scsi_report_timestamp_data *data; 7674 struct timeval tv; 7675 int64_t timestamp; 7676 int retval; 7677 int alloc_len, total_len; 7678 7679 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7680 7681 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7682 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7683 7684 retval = CTL_RETVAL_COMPLETE; 7685 7686 total_len = sizeof(struct scsi_report_timestamp_data); 7687 alloc_len = scsi_4btoul(cdb->length); 7688 7689 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7690 7691 ctsio->kern_sg_entries = 0; 7692 7693 if (total_len < alloc_len) { 7694 ctsio->residual = alloc_len - total_len; 7695 ctsio->kern_data_len = total_len; 7696 ctsio->kern_total_len = total_len; 7697 } else { 7698 ctsio->residual = 0; 7699 ctsio->kern_data_len = alloc_len; 7700 ctsio->kern_total_len = alloc_len; 7701 } 7702 ctsio->kern_data_resid = 0; 7703 ctsio->kern_rel_offset = 0; 7704 7705 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7706 scsi_ulto2b(sizeof(*data) - 2, data->length); 7707 data->origin = RTS_ORIG_OUTSIDE; 7708 getmicrotime(&tv); 7709 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7710 scsi_ulto4b(timestamp >> 16, data->timestamp); 7711 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7712 7713 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7714 ctsio->be_move_done = ctl_config_move_done; 7715 7716 ctl_datamove((union ctl_io *)ctsio); 7717 return (retval); 7718} 7719 7720int 7721ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7722{ 7723 struct scsi_per_res_in *cdb; 7724 int alloc_len, total_len = 0; 7725 /* struct scsi_per_res_in_rsrv in_data; */ 7726 struct ctl_lun *lun; 7727 struct ctl_softc *softc; 7728 7729 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7730 7731 softc = control_softc; 7732 7733 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7734 7735 alloc_len = scsi_2btoul(cdb->length); 7736 7737 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7738 7739retry: 7740 mtx_lock(&lun->lun_lock); 7741 switch (cdb->action) { 7742 case SPRI_RK: /* read keys */ 7743 total_len = sizeof(struct scsi_per_res_in_keys) + 7744 lun->pr_key_count * 7745 sizeof(struct scsi_per_res_key); 7746 break; 7747 case SPRI_RR: /* read reservation */ 7748 if (lun->flags & CTL_LUN_PR_RESERVED) 7749 total_len = sizeof(struct scsi_per_res_in_rsrv); 7750 else 7751 total_len = sizeof(struct scsi_per_res_in_header); 7752 break; 7753 case SPRI_RC: /* report capabilities */ 7754 total_len = sizeof(struct scsi_per_res_cap); 7755 break; 7756 case SPRI_RS: /* read full status */ 7757 total_len = sizeof(struct scsi_per_res_in_header) + 7758 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7759 lun->pr_key_count; 7760 break; 7761 default: 7762 panic("Invalid PR type %x", cdb->action); 7763 } 7764 mtx_unlock(&lun->lun_lock); 7765 7766 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7767 7768 if (total_len < alloc_len) { 7769 ctsio->residual = alloc_len - total_len; 7770 ctsio->kern_data_len = total_len; 7771 ctsio->kern_total_len = total_len; 7772 } else { 7773 ctsio->residual = 0; 7774 ctsio->kern_data_len = alloc_len; 7775 ctsio->kern_total_len = alloc_len; 7776 } 7777 7778 ctsio->kern_data_resid = 0; 7779 ctsio->kern_rel_offset = 0; 7780 ctsio->kern_sg_entries = 0; 7781 7782 mtx_lock(&lun->lun_lock); 7783 switch (cdb->action) { 7784 case SPRI_RK: { // read keys 7785 struct scsi_per_res_in_keys *res_keys; 7786 int i, key_count; 7787 7788 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7789 7790 /* 7791 * We had to drop the lock to allocate our buffer, which 7792 * leaves time for someone to come in with another 7793 * persistent reservation. (That is unlikely, though, 7794 * since this should be the only persistent reservation 7795 * command active right now.) 7796 */ 7797 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7798 (lun->pr_key_count * 7799 sizeof(struct scsi_per_res_key)))){ 7800 mtx_unlock(&lun->lun_lock); 7801 free(ctsio->kern_data_ptr, M_CTL); 7802 printf("%s: reservation length changed, retrying\n", 7803 __func__); 7804 goto retry; 7805 } 7806 7807 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7808 7809 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7810 lun->pr_key_count, res_keys->header.length); 7811 7812 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7813 if (!lun->per_res[i].registered) 7814 continue; 7815 7816 /* 7817 * We used lun->pr_key_count to calculate the 7818 * size to allocate. If it turns out the number of 7819 * initiators with the registered flag set is 7820 * larger than that (i.e. they haven't been kept in 7821 * sync), we've got a problem. 7822 */ 7823 if (key_count >= lun->pr_key_count) { 7824#ifdef NEEDTOPORT 7825 csevent_log(CSC_CTL | CSC_SHELF_SW | 7826 CTL_PR_ERROR, 7827 csevent_LogType_Fault, 7828 csevent_AlertLevel_Yellow, 7829 csevent_FRU_ShelfController, 7830 csevent_FRU_Firmware, 7831 csevent_FRU_Unknown, 7832 "registered keys %d >= key " 7833 "count %d", key_count, 7834 lun->pr_key_count); 7835#endif 7836 key_count++; 7837 continue; 7838 } 7839 memcpy(res_keys->keys[key_count].key, 7840 lun->per_res[i].res_key.key, 7841 ctl_min(sizeof(res_keys->keys[key_count].key), 7842 sizeof(lun->per_res[i].res_key))); 7843 key_count++; 7844 } 7845 break; 7846 } 7847 case SPRI_RR: { // read reservation 7848 struct scsi_per_res_in_rsrv *res; 7849 int tmp_len, header_only; 7850 7851 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7852 7853 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7854 7855 if (lun->flags & CTL_LUN_PR_RESERVED) 7856 { 7857 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7858 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7859 res->header.length); 7860 header_only = 0; 7861 } else { 7862 tmp_len = sizeof(struct scsi_per_res_in_header); 7863 scsi_ulto4b(0, res->header.length); 7864 header_only = 1; 7865 } 7866 7867 /* 7868 * We had to drop the lock to allocate our buffer, which 7869 * leaves time for someone to come in with another 7870 * persistent reservation. (That is unlikely, though, 7871 * since this should be the only persistent reservation 7872 * command active right now.) 7873 */ 7874 if (tmp_len != total_len) { 7875 mtx_unlock(&lun->lun_lock); 7876 free(ctsio->kern_data_ptr, M_CTL); 7877 printf("%s: reservation status changed, retrying\n", 7878 __func__); 7879 goto retry; 7880 } 7881 7882 /* 7883 * No reservation held, so we're done. 7884 */ 7885 if (header_only != 0) 7886 break; 7887 7888 /* 7889 * If the registration is an All Registrants type, the key 7890 * is 0, since it doesn't really matter. 7891 */ 7892 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7893 memcpy(res->data.reservation, 7894 &lun->per_res[lun->pr_res_idx].res_key, 7895 sizeof(struct scsi_per_res_key)); 7896 } 7897 res->data.scopetype = lun->res_type; 7898 break; 7899 } 7900 case SPRI_RC: //report capabilities 7901 { 7902 struct scsi_per_res_cap *res_cap; 7903 uint16_t type_mask; 7904 7905 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7906 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7907 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7908 type_mask = SPRI_TM_WR_EX_AR | 7909 SPRI_TM_EX_AC_RO | 7910 SPRI_TM_WR_EX_RO | 7911 SPRI_TM_EX_AC | 7912 SPRI_TM_WR_EX | 7913 SPRI_TM_EX_AC_AR; 7914 scsi_ulto2b(type_mask, res_cap->type_mask); 7915 break; 7916 } 7917 case SPRI_RS: { // read full status 7918 struct scsi_per_res_in_full *res_status; 7919 struct scsi_per_res_in_full_desc *res_desc; 7920 struct ctl_port *port; 7921 int i, len; 7922 7923 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7924 7925 /* 7926 * We had to drop the lock to allocate our buffer, which 7927 * leaves time for someone to come in with another 7928 * persistent reservation. (That is unlikely, though, 7929 * since this should be the only persistent reservation 7930 * command active right now.) 7931 */ 7932 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7933 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7934 lun->pr_key_count)){ 7935 mtx_unlock(&lun->lun_lock); 7936 free(ctsio->kern_data_ptr, M_CTL); 7937 printf("%s: reservation length changed, retrying\n", 7938 __func__); 7939 goto retry; 7940 } 7941 7942 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7943 7944 res_desc = &res_status->desc[0]; 7945 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7946 if (!lun->per_res[i].registered) 7947 continue; 7948 7949 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7950 sizeof(res_desc->res_key)); 7951 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7952 (lun->pr_res_idx == i || 7953 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7954 res_desc->flags = SPRI_FULL_R_HOLDER; 7955 res_desc->scopetype = lun->res_type; 7956 } 7957 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7958 res_desc->rel_trgt_port_id); 7959 len = 0; 7960 port = softc->ctl_ports[ 7961 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7962 if (port != NULL) 7963 len = ctl_create_iid(port, 7964 i % CTL_MAX_INIT_PER_PORT, 7965 res_desc->transport_id); 7966 scsi_ulto4b(len, res_desc->additional_length); 7967 res_desc = (struct scsi_per_res_in_full_desc *) 7968 &res_desc->transport_id[len]; 7969 } 7970 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7971 res_status->header.length); 7972 break; 7973 } 7974 default: 7975 /* 7976 * This is a bug, because we just checked for this above, 7977 * and should have returned an error. 7978 */ 7979 panic("Invalid PR type %x", cdb->action); 7980 break; /* NOTREACHED */ 7981 } 7982 mtx_unlock(&lun->lun_lock); 7983 7984 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7985 ctsio->be_move_done = ctl_config_move_done; 7986 7987 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7988 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7989 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7990 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7991 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7992 7993 ctl_datamove((union ctl_io *)ctsio); 7994 7995 return (CTL_RETVAL_COMPLETE); 7996} 7997 7998/* 7999 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8000 * it should return. 8001 */ 8002static int 8003ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8004 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8005 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8006 struct scsi_per_res_out_parms* param) 8007{ 8008 union ctl_ha_msg persis_io; 8009 int retval, i; 8010 int isc_retval; 8011 8012 retval = 0; 8013 8014 mtx_lock(&lun->lun_lock); 8015 if (sa_res_key == 0) { 8016 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8017 /* validate scope and type */ 8018 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8019 SPR_LU_SCOPE) { 8020 mtx_unlock(&lun->lun_lock); 8021 ctl_set_invalid_field(/*ctsio*/ ctsio, 8022 /*sks_valid*/ 1, 8023 /*command*/ 1, 8024 /*field*/ 2, 8025 /*bit_valid*/ 1, 8026 /*bit*/ 4); 8027 ctl_done((union ctl_io *)ctsio); 8028 return (1); 8029 } 8030 8031 if (type>8 || type==2 || type==4 || type==0) { 8032 mtx_unlock(&lun->lun_lock); 8033 ctl_set_invalid_field(/*ctsio*/ ctsio, 8034 /*sks_valid*/ 1, 8035 /*command*/ 1, 8036 /*field*/ 2, 8037 /*bit_valid*/ 1, 8038 /*bit*/ 0); 8039 ctl_done((union ctl_io *)ctsio); 8040 return (1); 8041 } 8042 8043 /* temporarily unregister this nexus */ 8044 lun->per_res[residx].registered = 0; 8045 8046 /* 8047 * Unregister everybody else and build UA for 8048 * them 8049 */ 8050 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8051 if (lun->per_res[i].registered == 0) 8052 continue; 8053 8054 if (!persis_offset 8055 && i <CTL_MAX_INITIATORS) 8056 lun->pending_ua[i] |= 8057 CTL_UA_REG_PREEMPT; 8058 else if (persis_offset 8059 && i >= persis_offset) 8060 lun->pending_ua[i-persis_offset] |= 8061 CTL_UA_REG_PREEMPT; 8062 lun->per_res[i].registered = 0; 8063 memset(&lun->per_res[i].res_key, 0, 8064 sizeof(struct scsi_per_res_key)); 8065 } 8066 lun->per_res[residx].registered = 1; 8067 lun->pr_key_count = 1; 8068 lun->res_type = type; 8069 if (lun->res_type != SPR_TYPE_WR_EX_AR 8070 && lun->res_type != SPR_TYPE_EX_AC_AR) 8071 lun->pr_res_idx = residx; 8072 8073 /* send msg to other side */ 8074 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8075 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8076 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8077 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8078 persis_io.pr.pr_info.res_type = type; 8079 memcpy(persis_io.pr.pr_info.sa_res_key, 8080 param->serv_act_res_key, 8081 sizeof(param->serv_act_res_key)); 8082 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8083 &persis_io, sizeof(persis_io), 0)) > 8084 CTL_HA_STATUS_SUCCESS) { 8085 printf("CTL:Persis Out error returned " 8086 "from ctl_ha_msg_send %d\n", 8087 isc_retval); 8088 } 8089 } else { 8090 /* not all registrants */ 8091 mtx_unlock(&lun->lun_lock); 8092 free(ctsio->kern_data_ptr, M_CTL); 8093 ctl_set_invalid_field(ctsio, 8094 /*sks_valid*/ 1, 8095 /*command*/ 0, 8096 /*field*/ 8, 8097 /*bit_valid*/ 0, 8098 /*bit*/ 0); 8099 ctl_done((union ctl_io *)ctsio); 8100 return (1); 8101 } 8102 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8103 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8104 int found = 0; 8105 8106 if (res_key == sa_res_key) { 8107 /* special case */ 8108 /* 8109 * The spec implies this is not good but doesn't 8110 * say what to do. There are two choices either 8111 * generate a res conflict or check condition 8112 * with illegal field in parameter data. Since 8113 * that is what is done when the sa_res_key is 8114 * zero I'll take that approach since this has 8115 * to do with the sa_res_key. 8116 */ 8117 mtx_unlock(&lun->lun_lock); 8118 free(ctsio->kern_data_ptr, M_CTL); 8119 ctl_set_invalid_field(ctsio, 8120 /*sks_valid*/ 1, 8121 /*command*/ 0, 8122 /*field*/ 8, 8123 /*bit_valid*/ 0, 8124 /*bit*/ 0); 8125 ctl_done((union ctl_io *)ctsio); 8126 return (1); 8127 } 8128 8129 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8130 if (lun->per_res[i].registered 8131 && memcmp(param->serv_act_res_key, 8132 lun->per_res[i].res_key.key, 8133 sizeof(struct scsi_per_res_key)) != 0) 8134 continue; 8135 8136 found = 1; 8137 lun->per_res[i].registered = 0; 8138 memset(&lun->per_res[i].res_key, 0, 8139 sizeof(struct scsi_per_res_key)); 8140 lun->pr_key_count--; 8141 8142 if (!persis_offset && i < CTL_MAX_INITIATORS) 8143 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8144 else if (persis_offset && i >= persis_offset) 8145 lun->pending_ua[i-persis_offset] |= 8146 CTL_UA_REG_PREEMPT; 8147 } 8148 if (!found) { 8149 mtx_unlock(&lun->lun_lock); 8150 free(ctsio->kern_data_ptr, M_CTL); 8151 ctl_set_reservation_conflict(ctsio); 8152 ctl_done((union ctl_io *)ctsio); 8153 return (CTL_RETVAL_COMPLETE); 8154 } 8155 /* send msg to other side */ 8156 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8157 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8158 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8159 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8160 persis_io.pr.pr_info.res_type = type; 8161 memcpy(persis_io.pr.pr_info.sa_res_key, 8162 param->serv_act_res_key, 8163 sizeof(param->serv_act_res_key)); 8164 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8165 &persis_io, sizeof(persis_io), 0)) > 8166 CTL_HA_STATUS_SUCCESS) { 8167 printf("CTL:Persis Out error returned from " 8168 "ctl_ha_msg_send %d\n", isc_retval); 8169 } 8170 } else { 8171 /* Reserved but not all registrants */ 8172 /* sa_res_key is res holder */ 8173 if (memcmp(param->serv_act_res_key, 8174 lun->per_res[lun->pr_res_idx].res_key.key, 8175 sizeof(struct scsi_per_res_key)) == 0) { 8176 /* validate scope and type */ 8177 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8178 SPR_LU_SCOPE) { 8179 mtx_unlock(&lun->lun_lock); 8180 ctl_set_invalid_field(/*ctsio*/ ctsio, 8181 /*sks_valid*/ 1, 8182 /*command*/ 1, 8183 /*field*/ 2, 8184 /*bit_valid*/ 1, 8185 /*bit*/ 4); 8186 ctl_done((union ctl_io *)ctsio); 8187 return (1); 8188 } 8189 8190 if (type>8 || type==2 || type==4 || type==0) { 8191 mtx_unlock(&lun->lun_lock); 8192 ctl_set_invalid_field(/*ctsio*/ ctsio, 8193 /*sks_valid*/ 1, 8194 /*command*/ 1, 8195 /*field*/ 2, 8196 /*bit_valid*/ 1, 8197 /*bit*/ 0); 8198 ctl_done((union ctl_io *)ctsio); 8199 return (1); 8200 } 8201 8202 /* 8203 * Do the following: 8204 * if sa_res_key != res_key remove all 8205 * registrants w/sa_res_key and generate UA 8206 * for these registrants(Registrations 8207 * Preempted) if it wasn't an exclusive 8208 * reservation generate UA(Reservations 8209 * Preempted) for all other registered nexuses 8210 * if the type has changed. Establish the new 8211 * reservation and holder. If res_key and 8212 * sa_res_key are the same do the above 8213 * except don't unregister the res holder. 8214 */ 8215 8216 /* 8217 * Temporarily unregister so it won't get 8218 * removed or UA generated 8219 */ 8220 lun->per_res[residx].registered = 0; 8221 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8222 if (lun->per_res[i].registered == 0) 8223 continue; 8224 8225 if (memcmp(param->serv_act_res_key, 8226 lun->per_res[i].res_key.key, 8227 sizeof(struct scsi_per_res_key)) == 0) { 8228 lun->per_res[i].registered = 0; 8229 memset(&lun->per_res[i].res_key, 8230 0, 8231 sizeof(struct scsi_per_res_key)); 8232 lun->pr_key_count--; 8233 8234 if (!persis_offset 8235 && i < CTL_MAX_INITIATORS) 8236 lun->pending_ua[i] |= 8237 CTL_UA_REG_PREEMPT; 8238 else if (persis_offset 8239 && i >= persis_offset) 8240 lun->pending_ua[i-persis_offset] |= 8241 CTL_UA_REG_PREEMPT; 8242 } else if (type != lun->res_type 8243 && (lun->res_type == SPR_TYPE_WR_EX_RO 8244 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8245 if (!persis_offset 8246 && i < CTL_MAX_INITIATORS) 8247 lun->pending_ua[i] |= 8248 CTL_UA_RES_RELEASE; 8249 else if (persis_offset 8250 && i >= persis_offset) 8251 lun->pending_ua[ 8252 i-persis_offset] |= 8253 CTL_UA_RES_RELEASE; 8254 } 8255 } 8256 lun->per_res[residx].registered = 1; 8257 lun->res_type = type; 8258 if (lun->res_type != SPR_TYPE_WR_EX_AR 8259 && lun->res_type != SPR_TYPE_EX_AC_AR) 8260 lun->pr_res_idx = residx; 8261 else 8262 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8263 8264 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8265 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8266 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8267 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8268 persis_io.pr.pr_info.res_type = type; 8269 memcpy(persis_io.pr.pr_info.sa_res_key, 8270 param->serv_act_res_key, 8271 sizeof(param->serv_act_res_key)); 8272 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8273 &persis_io, sizeof(persis_io), 0)) > 8274 CTL_HA_STATUS_SUCCESS) { 8275 printf("CTL:Persis Out error returned " 8276 "from ctl_ha_msg_send %d\n", 8277 isc_retval); 8278 } 8279 } else { 8280 /* 8281 * sa_res_key is not the res holder just 8282 * remove registrants 8283 */ 8284 int found=0; 8285 8286 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8287 if (memcmp(param->serv_act_res_key, 8288 lun->per_res[i].res_key.key, 8289 sizeof(struct scsi_per_res_key)) != 0) 8290 continue; 8291 8292 found = 1; 8293 lun->per_res[i].registered = 0; 8294 memset(&lun->per_res[i].res_key, 0, 8295 sizeof(struct scsi_per_res_key)); 8296 lun->pr_key_count--; 8297 8298 if (!persis_offset 8299 && i < CTL_MAX_INITIATORS) 8300 lun->pending_ua[i] |= 8301 CTL_UA_REG_PREEMPT; 8302 else if (persis_offset 8303 && i >= persis_offset) 8304 lun->pending_ua[i-persis_offset] |= 8305 CTL_UA_REG_PREEMPT; 8306 } 8307 8308 if (!found) { 8309 mtx_unlock(&lun->lun_lock); 8310 free(ctsio->kern_data_ptr, M_CTL); 8311 ctl_set_reservation_conflict(ctsio); 8312 ctl_done((union ctl_io *)ctsio); 8313 return (1); 8314 } 8315 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8316 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8317 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8318 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8319 persis_io.pr.pr_info.res_type = type; 8320 memcpy(persis_io.pr.pr_info.sa_res_key, 8321 param->serv_act_res_key, 8322 sizeof(param->serv_act_res_key)); 8323 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8324 &persis_io, sizeof(persis_io), 0)) > 8325 CTL_HA_STATUS_SUCCESS) { 8326 printf("CTL:Persis Out error returned " 8327 "from ctl_ha_msg_send %d\n", 8328 isc_retval); 8329 } 8330 } 8331 } 8332 8333 lun->PRGeneration++; 8334 mtx_unlock(&lun->lun_lock); 8335 8336 return (retval); 8337} 8338 8339static void 8340ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8341{ 8342 int i; 8343 8344 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8345 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8346 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8347 msg->pr.pr_info.sa_res_key, 8348 sizeof(struct scsi_per_res_key)) != 0) { 8349 uint64_t sa_res_key; 8350 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8351 8352 if (sa_res_key == 0) { 8353 /* temporarily unregister this nexus */ 8354 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8355 8356 /* 8357 * Unregister everybody else and build UA for 8358 * them 8359 */ 8360 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8361 if (lun->per_res[i].registered == 0) 8362 continue; 8363 8364 if (!persis_offset 8365 && i < CTL_MAX_INITIATORS) 8366 lun->pending_ua[i] |= 8367 CTL_UA_REG_PREEMPT; 8368 else if (persis_offset && i >= persis_offset) 8369 lun->pending_ua[i - persis_offset] |= 8370 CTL_UA_REG_PREEMPT; 8371 lun->per_res[i].registered = 0; 8372 memset(&lun->per_res[i].res_key, 0, 8373 sizeof(struct scsi_per_res_key)); 8374 } 8375 8376 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8377 lun->pr_key_count = 1; 8378 lun->res_type = msg->pr.pr_info.res_type; 8379 if (lun->res_type != SPR_TYPE_WR_EX_AR 8380 && lun->res_type != SPR_TYPE_EX_AC_AR) 8381 lun->pr_res_idx = msg->pr.pr_info.residx; 8382 } else { 8383 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8384 if (memcmp(msg->pr.pr_info.sa_res_key, 8385 lun->per_res[i].res_key.key, 8386 sizeof(struct scsi_per_res_key)) != 0) 8387 continue; 8388 8389 lun->per_res[i].registered = 0; 8390 memset(&lun->per_res[i].res_key, 0, 8391 sizeof(struct scsi_per_res_key)); 8392 lun->pr_key_count--; 8393 8394 if (!persis_offset 8395 && i < persis_offset) 8396 lun->pending_ua[i] |= 8397 CTL_UA_REG_PREEMPT; 8398 else if (persis_offset 8399 && i >= persis_offset) 8400 lun->pending_ua[i - persis_offset] |= 8401 CTL_UA_REG_PREEMPT; 8402 } 8403 } 8404 } else { 8405 /* 8406 * Temporarily unregister so it won't get removed 8407 * or UA generated 8408 */ 8409 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8410 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8411 if (lun->per_res[i].registered == 0) 8412 continue; 8413 8414 if (memcmp(msg->pr.pr_info.sa_res_key, 8415 lun->per_res[i].res_key.key, 8416 sizeof(struct scsi_per_res_key)) == 0) { 8417 lun->per_res[i].registered = 0; 8418 memset(&lun->per_res[i].res_key, 0, 8419 sizeof(struct scsi_per_res_key)); 8420 lun->pr_key_count--; 8421 if (!persis_offset 8422 && i < CTL_MAX_INITIATORS) 8423 lun->pending_ua[i] |= 8424 CTL_UA_REG_PREEMPT; 8425 else if (persis_offset 8426 && i >= persis_offset) 8427 lun->pending_ua[i - persis_offset] |= 8428 CTL_UA_REG_PREEMPT; 8429 } else if (msg->pr.pr_info.res_type != lun->res_type 8430 && (lun->res_type == SPR_TYPE_WR_EX_RO 8431 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8432 if (!persis_offset 8433 && i < persis_offset) 8434 lun->pending_ua[i] |= 8435 CTL_UA_RES_RELEASE; 8436 else if (persis_offset 8437 && i >= persis_offset) 8438 lun->pending_ua[i - persis_offset] |= 8439 CTL_UA_RES_RELEASE; 8440 } 8441 } 8442 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8443 lun->res_type = msg->pr.pr_info.res_type; 8444 if (lun->res_type != SPR_TYPE_WR_EX_AR 8445 && lun->res_type != SPR_TYPE_EX_AC_AR) 8446 lun->pr_res_idx = msg->pr.pr_info.residx; 8447 else 8448 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8449 } 8450 lun->PRGeneration++; 8451 8452} 8453 8454 8455int 8456ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8457{ 8458 int retval; 8459 int isc_retval; 8460 u_int32_t param_len; 8461 struct scsi_per_res_out *cdb; 8462 struct ctl_lun *lun; 8463 struct scsi_per_res_out_parms* param; 8464 struct ctl_softc *softc; 8465 uint32_t residx; 8466 uint64_t res_key, sa_res_key; 8467 uint8_t type; 8468 union ctl_ha_msg persis_io; 8469 int i; 8470 8471 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8472 8473 retval = CTL_RETVAL_COMPLETE; 8474 8475 softc = control_softc; 8476 8477 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8478 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8479 8480 /* 8481 * We only support whole-LUN scope. The scope & type are ignored for 8482 * register, register and ignore existing key and clear. 8483 * We sometimes ignore scope and type on preempts too!! 8484 * Verify reservation type here as well. 8485 */ 8486 type = cdb->scope_type & SPR_TYPE_MASK; 8487 if ((cdb->action == SPRO_RESERVE) 8488 || (cdb->action == SPRO_RELEASE)) { 8489 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8490 ctl_set_invalid_field(/*ctsio*/ ctsio, 8491 /*sks_valid*/ 1, 8492 /*command*/ 1, 8493 /*field*/ 2, 8494 /*bit_valid*/ 1, 8495 /*bit*/ 4); 8496 ctl_done((union ctl_io *)ctsio); 8497 return (CTL_RETVAL_COMPLETE); 8498 } 8499 8500 if (type>8 || type==2 || type==4 || type==0) { 8501 ctl_set_invalid_field(/*ctsio*/ ctsio, 8502 /*sks_valid*/ 1, 8503 /*command*/ 1, 8504 /*field*/ 2, 8505 /*bit_valid*/ 1, 8506 /*bit*/ 0); 8507 ctl_done((union ctl_io *)ctsio); 8508 return (CTL_RETVAL_COMPLETE); 8509 } 8510 } 8511 8512 param_len = scsi_4btoul(cdb->length); 8513 8514 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8515 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8516 ctsio->kern_data_len = param_len; 8517 ctsio->kern_total_len = param_len; 8518 ctsio->kern_data_resid = 0; 8519 ctsio->kern_rel_offset = 0; 8520 ctsio->kern_sg_entries = 0; 8521 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8522 ctsio->be_move_done = ctl_config_move_done; 8523 ctl_datamove((union ctl_io *)ctsio); 8524 8525 return (CTL_RETVAL_COMPLETE); 8526 } 8527 8528 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8529 8530 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8531 res_key = scsi_8btou64(param->res_key.key); 8532 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8533 8534 /* 8535 * Validate the reservation key here except for SPRO_REG_IGNO 8536 * This must be done for all other service actions 8537 */ 8538 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8539 mtx_lock(&lun->lun_lock); 8540 if (lun->per_res[residx].registered) { 8541 if (memcmp(param->res_key.key, 8542 lun->per_res[residx].res_key.key, 8543 ctl_min(sizeof(param->res_key), 8544 sizeof(lun->per_res[residx].res_key))) != 0) { 8545 /* 8546 * The current key passed in doesn't match 8547 * the one the initiator previously 8548 * registered. 8549 */ 8550 mtx_unlock(&lun->lun_lock); 8551 free(ctsio->kern_data_ptr, M_CTL); 8552 ctl_set_reservation_conflict(ctsio); 8553 ctl_done((union ctl_io *)ctsio); 8554 return (CTL_RETVAL_COMPLETE); 8555 } 8556 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8557 /* 8558 * We are not registered 8559 */ 8560 mtx_unlock(&lun->lun_lock); 8561 free(ctsio->kern_data_ptr, M_CTL); 8562 ctl_set_reservation_conflict(ctsio); 8563 ctl_done((union ctl_io *)ctsio); 8564 return (CTL_RETVAL_COMPLETE); 8565 } else if (res_key != 0) { 8566 /* 8567 * We are not registered and trying to register but 8568 * the register key isn't zero. 8569 */ 8570 mtx_unlock(&lun->lun_lock); 8571 free(ctsio->kern_data_ptr, M_CTL); 8572 ctl_set_reservation_conflict(ctsio); 8573 ctl_done((union ctl_io *)ctsio); 8574 return (CTL_RETVAL_COMPLETE); 8575 } 8576 mtx_unlock(&lun->lun_lock); 8577 } 8578 8579 switch (cdb->action & SPRO_ACTION_MASK) { 8580 case SPRO_REGISTER: 8581 case SPRO_REG_IGNO: { 8582 8583#if 0 8584 printf("Registration received\n"); 8585#endif 8586 8587 /* 8588 * We don't support any of these options, as we report in 8589 * the read capabilities request (see 8590 * ctl_persistent_reserve_in(), above). 8591 */ 8592 if ((param->flags & SPR_SPEC_I_PT) 8593 || (param->flags & SPR_ALL_TG_PT) 8594 || (param->flags & SPR_APTPL)) { 8595 int bit_ptr; 8596 8597 if (param->flags & SPR_APTPL) 8598 bit_ptr = 0; 8599 else if (param->flags & SPR_ALL_TG_PT) 8600 bit_ptr = 2; 8601 else /* SPR_SPEC_I_PT */ 8602 bit_ptr = 3; 8603 8604 free(ctsio->kern_data_ptr, M_CTL); 8605 ctl_set_invalid_field(ctsio, 8606 /*sks_valid*/ 1, 8607 /*command*/ 0, 8608 /*field*/ 20, 8609 /*bit_valid*/ 1, 8610 /*bit*/ bit_ptr); 8611 ctl_done((union ctl_io *)ctsio); 8612 return (CTL_RETVAL_COMPLETE); 8613 } 8614 8615 mtx_lock(&lun->lun_lock); 8616 8617 /* 8618 * The initiator wants to clear the 8619 * key/unregister. 8620 */ 8621 if (sa_res_key == 0) { 8622 if ((res_key == 0 8623 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8624 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8625 && !lun->per_res[residx].registered)) { 8626 mtx_unlock(&lun->lun_lock); 8627 goto done; 8628 } 8629 8630 lun->per_res[residx].registered = 0; 8631 memset(&lun->per_res[residx].res_key, 8632 0, sizeof(lun->per_res[residx].res_key)); 8633 lun->pr_key_count--; 8634 8635 if (residx == lun->pr_res_idx) { 8636 lun->flags &= ~CTL_LUN_PR_RESERVED; 8637 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8638 8639 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8640 || lun->res_type == SPR_TYPE_EX_AC_RO) 8641 && lun->pr_key_count) { 8642 /* 8643 * If the reservation is a registrants 8644 * only type we need to generate a UA 8645 * for other registered inits. The 8646 * sense code should be RESERVATIONS 8647 * RELEASED 8648 */ 8649 8650 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8651 if (lun->per_res[ 8652 i+persis_offset].registered 8653 == 0) 8654 continue; 8655 lun->pending_ua[i] |= 8656 CTL_UA_RES_RELEASE; 8657 } 8658 } 8659 lun->res_type = 0; 8660 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8661 if (lun->pr_key_count==0) { 8662 lun->flags &= ~CTL_LUN_PR_RESERVED; 8663 lun->res_type = 0; 8664 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8665 } 8666 } 8667 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8668 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8669 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8670 persis_io.pr.pr_info.residx = residx; 8671 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8672 &persis_io, sizeof(persis_io), 0 )) > 8673 CTL_HA_STATUS_SUCCESS) { 8674 printf("CTL:Persis Out error returned from " 8675 "ctl_ha_msg_send %d\n", isc_retval); 8676 } 8677 } else /* sa_res_key != 0 */ { 8678 8679 /* 8680 * If we aren't registered currently then increment 8681 * the key count and set the registered flag. 8682 */ 8683 if (!lun->per_res[residx].registered) { 8684 lun->pr_key_count++; 8685 lun->per_res[residx].registered = 1; 8686 } 8687 8688 memcpy(&lun->per_res[residx].res_key, 8689 param->serv_act_res_key, 8690 ctl_min(sizeof(param->serv_act_res_key), 8691 sizeof(lun->per_res[residx].res_key))); 8692 8693 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8694 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8695 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8696 persis_io.pr.pr_info.residx = residx; 8697 memcpy(persis_io.pr.pr_info.sa_res_key, 8698 param->serv_act_res_key, 8699 sizeof(param->serv_act_res_key)); 8700 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8701 &persis_io, sizeof(persis_io), 0)) > 8702 CTL_HA_STATUS_SUCCESS) { 8703 printf("CTL:Persis Out error returned from " 8704 "ctl_ha_msg_send %d\n", isc_retval); 8705 } 8706 } 8707 lun->PRGeneration++; 8708 mtx_unlock(&lun->lun_lock); 8709 8710 break; 8711 } 8712 case SPRO_RESERVE: 8713#if 0 8714 printf("Reserve executed type %d\n", type); 8715#endif 8716 mtx_lock(&lun->lun_lock); 8717 if (lun->flags & CTL_LUN_PR_RESERVED) { 8718 /* 8719 * if this isn't the reservation holder and it's 8720 * not a "all registrants" type or if the type is 8721 * different then we have a conflict 8722 */ 8723 if ((lun->pr_res_idx != residx 8724 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8725 || lun->res_type != type) { 8726 mtx_unlock(&lun->lun_lock); 8727 free(ctsio->kern_data_ptr, M_CTL); 8728 ctl_set_reservation_conflict(ctsio); 8729 ctl_done((union ctl_io *)ctsio); 8730 return (CTL_RETVAL_COMPLETE); 8731 } 8732 mtx_unlock(&lun->lun_lock); 8733 } else /* create a reservation */ { 8734 /* 8735 * If it's not an "all registrants" type record 8736 * reservation holder 8737 */ 8738 if (type != SPR_TYPE_WR_EX_AR 8739 && type != SPR_TYPE_EX_AC_AR) 8740 lun->pr_res_idx = residx; /* Res holder */ 8741 else 8742 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8743 8744 lun->flags |= CTL_LUN_PR_RESERVED; 8745 lun->res_type = type; 8746 8747 mtx_unlock(&lun->lun_lock); 8748 8749 /* send msg to other side */ 8750 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8751 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8752 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8753 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8754 persis_io.pr.pr_info.res_type = type; 8755 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8756 &persis_io, sizeof(persis_io), 0)) > 8757 CTL_HA_STATUS_SUCCESS) { 8758 printf("CTL:Persis Out error returned from " 8759 "ctl_ha_msg_send %d\n", isc_retval); 8760 } 8761 } 8762 break; 8763 8764 case SPRO_RELEASE: 8765 mtx_lock(&lun->lun_lock); 8766 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8767 /* No reservation exists return good status */ 8768 mtx_unlock(&lun->lun_lock); 8769 goto done; 8770 } 8771 /* 8772 * Is this nexus a reservation holder? 8773 */ 8774 if (lun->pr_res_idx != residx 8775 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8776 /* 8777 * not a res holder return good status but 8778 * do nothing 8779 */ 8780 mtx_unlock(&lun->lun_lock); 8781 goto done; 8782 } 8783 8784 if (lun->res_type != type) { 8785 mtx_unlock(&lun->lun_lock); 8786 free(ctsio->kern_data_ptr, M_CTL); 8787 ctl_set_illegal_pr_release(ctsio); 8788 ctl_done((union ctl_io *)ctsio); 8789 return (CTL_RETVAL_COMPLETE); 8790 } 8791 8792 /* okay to release */ 8793 lun->flags &= ~CTL_LUN_PR_RESERVED; 8794 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8795 lun->res_type = 0; 8796 8797 /* 8798 * if this isn't an exclusive access 8799 * res generate UA for all other 8800 * registrants. 8801 */ 8802 if (type != SPR_TYPE_EX_AC 8803 && type != SPR_TYPE_WR_EX) { 8804 /* 8805 * temporarily unregister so we don't generate UA 8806 */ 8807 lun->per_res[residx].registered = 0; 8808 8809 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8810 if (lun->per_res[i+persis_offset].registered 8811 == 0) 8812 continue; 8813 lun->pending_ua[i] |= 8814 CTL_UA_RES_RELEASE; 8815 } 8816 8817 lun->per_res[residx].registered = 1; 8818 } 8819 mtx_unlock(&lun->lun_lock); 8820 /* Send msg to other side */ 8821 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8822 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8823 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8824 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8825 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8826 printf("CTL:Persis Out error returned from " 8827 "ctl_ha_msg_send %d\n", isc_retval); 8828 } 8829 break; 8830 8831 case SPRO_CLEAR: 8832 /* send msg to other side */ 8833 8834 mtx_lock(&lun->lun_lock); 8835 lun->flags &= ~CTL_LUN_PR_RESERVED; 8836 lun->res_type = 0; 8837 lun->pr_key_count = 0; 8838 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8839 8840 8841 memset(&lun->per_res[residx].res_key, 8842 0, sizeof(lun->per_res[residx].res_key)); 8843 lun->per_res[residx].registered = 0; 8844 8845 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8846 if (lun->per_res[i].registered) { 8847 if (!persis_offset && i < CTL_MAX_INITIATORS) 8848 lun->pending_ua[i] |= 8849 CTL_UA_RES_PREEMPT; 8850 else if (persis_offset && i >= persis_offset) 8851 lun->pending_ua[i-persis_offset] |= 8852 CTL_UA_RES_PREEMPT; 8853 8854 memset(&lun->per_res[i].res_key, 8855 0, sizeof(struct scsi_per_res_key)); 8856 lun->per_res[i].registered = 0; 8857 } 8858 lun->PRGeneration++; 8859 mtx_unlock(&lun->lun_lock); 8860 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8861 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8862 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8863 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8864 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8865 printf("CTL:Persis Out error returned from " 8866 "ctl_ha_msg_send %d\n", isc_retval); 8867 } 8868 break; 8869 8870 case SPRO_PREEMPT: { 8871 int nretval; 8872 8873 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8874 residx, ctsio, cdb, param); 8875 if (nretval != 0) 8876 return (CTL_RETVAL_COMPLETE); 8877 break; 8878 } 8879 default: 8880 panic("Invalid PR type %x", cdb->action); 8881 } 8882 8883done: 8884 free(ctsio->kern_data_ptr, M_CTL); 8885 ctl_set_success(ctsio); 8886 ctl_done((union ctl_io *)ctsio); 8887 8888 return (retval); 8889} 8890 8891/* 8892 * This routine is for handling a message from the other SC pertaining to 8893 * persistent reserve out. All the error checking will have been done 8894 * so only perorming the action need be done here to keep the two 8895 * in sync. 8896 */ 8897static void 8898ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8899{ 8900 struct ctl_lun *lun; 8901 struct ctl_softc *softc; 8902 int i; 8903 uint32_t targ_lun; 8904 8905 softc = control_softc; 8906 8907 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8908 lun = softc->ctl_luns[targ_lun]; 8909 mtx_lock(&lun->lun_lock); 8910 switch(msg->pr.pr_info.action) { 8911 case CTL_PR_REG_KEY: 8912 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8913 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8914 lun->pr_key_count++; 8915 } 8916 lun->PRGeneration++; 8917 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8918 msg->pr.pr_info.sa_res_key, 8919 sizeof(struct scsi_per_res_key)); 8920 break; 8921 8922 case CTL_PR_UNREG_KEY: 8923 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8924 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8925 0, sizeof(struct scsi_per_res_key)); 8926 lun->pr_key_count--; 8927 8928 /* XXX Need to see if the reservation has been released */ 8929 /* if so do we need to generate UA? */ 8930 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8931 lun->flags &= ~CTL_LUN_PR_RESERVED; 8932 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8933 8934 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8935 || lun->res_type == SPR_TYPE_EX_AC_RO) 8936 && lun->pr_key_count) { 8937 /* 8938 * If the reservation is a registrants 8939 * only type we need to generate a UA 8940 * for other registered inits. The 8941 * sense code should be RESERVATIONS 8942 * RELEASED 8943 */ 8944 8945 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8946 if (lun->per_res[i+ 8947 persis_offset].registered == 0) 8948 continue; 8949 8950 lun->pending_ua[i] |= 8951 CTL_UA_RES_RELEASE; 8952 } 8953 } 8954 lun->res_type = 0; 8955 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8956 if (lun->pr_key_count==0) { 8957 lun->flags &= ~CTL_LUN_PR_RESERVED; 8958 lun->res_type = 0; 8959 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8960 } 8961 } 8962 lun->PRGeneration++; 8963 break; 8964 8965 case CTL_PR_RESERVE: 8966 lun->flags |= CTL_LUN_PR_RESERVED; 8967 lun->res_type = msg->pr.pr_info.res_type; 8968 lun->pr_res_idx = msg->pr.pr_info.residx; 8969 8970 break; 8971 8972 case CTL_PR_RELEASE: 8973 /* 8974 * if this isn't an exclusive access res generate UA for all 8975 * other registrants. 8976 */ 8977 if (lun->res_type != SPR_TYPE_EX_AC 8978 && lun->res_type != SPR_TYPE_WR_EX) { 8979 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8980 if (lun->per_res[i+persis_offset].registered) 8981 lun->pending_ua[i] |= 8982 CTL_UA_RES_RELEASE; 8983 } 8984 8985 lun->flags &= ~CTL_LUN_PR_RESERVED; 8986 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8987 lun->res_type = 0; 8988 break; 8989 8990 case CTL_PR_PREEMPT: 8991 ctl_pro_preempt_other(lun, msg); 8992 break; 8993 case CTL_PR_CLEAR: 8994 lun->flags &= ~CTL_LUN_PR_RESERVED; 8995 lun->res_type = 0; 8996 lun->pr_key_count = 0; 8997 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8998 8999 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9000 if (lun->per_res[i].registered == 0) 9001 continue; 9002 if (!persis_offset 9003 && i < CTL_MAX_INITIATORS) 9004 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 9005 else if (persis_offset 9006 && i >= persis_offset) 9007 lun->pending_ua[i-persis_offset] |= 9008 CTL_UA_RES_PREEMPT; 9009 memset(&lun->per_res[i].res_key, 0, 9010 sizeof(struct scsi_per_res_key)); 9011 lun->per_res[i].registered = 0; 9012 } 9013 lun->PRGeneration++; 9014 break; 9015 } 9016 9017 mtx_unlock(&lun->lun_lock); 9018} 9019 9020int 9021ctl_read_write(struct ctl_scsiio *ctsio) 9022{ 9023 struct ctl_lun *lun; 9024 struct ctl_lba_len_flags *lbalen; 9025 uint64_t lba; 9026 uint32_t num_blocks; 9027 int flags, retval; 9028 int isread; 9029 9030 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9031 9032 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9033 9034 flags = 0; 9035 retval = CTL_RETVAL_COMPLETE; 9036 9037 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9038 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9039 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9040 uint32_t residx; 9041 9042 /* 9043 * XXX KDM need a lock here. 9044 */ 9045 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9046 if ((lun->res_type == SPR_TYPE_EX_AC 9047 && residx != lun->pr_res_idx) 9048 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9049 || lun->res_type == SPR_TYPE_EX_AC_AR) 9050 && !lun->per_res[residx].registered)) { 9051 ctl_set_reservation_conflict(ctsio); 9052 ctl_done((union ctl_io *)ctsio); 9053 return (CTL_RETVAL_COMPLETE); 9054 } 9055 } 9056 9057 switch (ctsio->cdb[0]) { 9058 case READ_6: 9059 case WRITE_6: { 9060 struct scsi_rw_6 *cdb; 9061 9062 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9063 9064 lba = scsi_3btoul(cdb->addr); 9065 /* only 5 bits are valid in the most significant address byte */ 9066 lba &= 0x1fffff; 9067 num_blocks = cdb->length; 9068 /* 9069 * This is correct according to SBC-2. 9070 */ 9071 if (num_blocks == 0) 9072 num_blocks = 256; 9073 break; 9074 } 9075 case READ_10: 9076 case WRITE_10: { 9077 struct scsi_rw_10 *cdb; 9078 9079 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9080 if (cdb->byte2 & SRW10_FUA) 9081 flags |= CTL_LLF_FUA; 9082 if (cdb->byte2 & SRW10_DPO) 9083 flags |= CTL_LLF_DPO; 9084 lba = scsi_4btoul(cdb->addr); 9085 num_blocks = scsi_2btoul(cdb->length); 9086 break; 9087 } 9088 case WRITE_VERIFY_10: { 9089 struct scsi_write_verify_10 *cdb; 9090 9091 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9092 flags |= CTL_LLF_FUA; 9093 if (cdb->byte2 & SWV_DPO) 9094 flags |= CTL_LLF_DPO; 9095 lba = scsi_4btoul(cdb->addr); 9096 num_blocks = scsi_2btoul(cdb->length); 9097 break; 9098 } 9099 case READ_12: 9100 case WRITE_12: { 9101 struct scsi_rw_12 *cdb; 9102 9103 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9104 if (cdb->byte2 & SRW12_FUA) 9105 flags |= CTL_LLF_FUA; 9106 if (cdb->byte2 & SRW12_DPO) 9107 flags |= CTL_LLF_DPO; 9108 lba = scsi_4btoul(cdb->addr); 9109 num_blocks = scsi_4btoul(cdb->length); 9110 break; 9111 } 9112 case WRITE_VERIFY_12: { 9113 struct scsi_write_verify_12 *cdb; 9114 9115 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9116 flags |= CTL_LLF_FUA; 9117 if (cdb->byte2 & SWV_DPO) 9118 flags |= CTL_LLF_DPO; 9119 lba = scsi_4btoul(cdb->addr); 9120 num_blocks = scsi_4btoul(cdb->length); 9121 break; 9122 } 9123 case READ_16: 9124 case WRITE_16: { 9125 struct scsi_rw_16 *cdb; 9126 9127 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9128 if (cdb->byte2 & SRW12_FUA) 9129 flags |= CTL_LLF_FUA; 9130 if (cdb->byte2 & SRW12_DPO) 9131 flags |= CTL_LLF_DPO; 9132 lba = scsi_8btou64(cdb->addr); 9133 num_blocks = scsi_4btoul(cdb->length); 9134 break; 9135 } 9136 case WRITE_VERIFY_16: { 9137 struct scsi_write_verify_16 *cdb; 9138 9139 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9140 flags |= CTL_LLF_FUA; 9141 if (cdb->byte2 & SWV_DPO) 9142 flags |= CTL_LLF_DPO; 9143 lba = scsi_8btou64(cdb->addr); 9144 num_blocks = scsi_4btoul(cdb->length); 9145 break; 9146 } 9147 default: 9148 /* 9149 * We got a command we don't support. This shouldn't 9150 * happen, commands should be filtered out above us. 9151 */ 9152 ctl_set_invalid_opcode(ctsio); 9153 ctl_done((union ctl_io *)ctsio); 9154 9155 return (CTL_RETVAL_COMPLETE); 9156 break; /* NOTREACHED */ 9157 } 9158 9159 /* 9160 * The first check is to make sure we're in bounds, the second 9161 * check is to catch wrap-around problems. If the lba + num blocks 9162 * is less than the lba, then we've wrapped around and the block 9163 * range is invalid anyway. 9164 */ 9165 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9166 || ((lba + num_blocks) < lba)) { 9167 ctl_set_lba_out_of_range(ctsio); 9168 ctl_done((union ctl_io *)ctsio); 9169 return (CTL_RETVAL_COMPLETE); 9170 } 9171 9172 /* 9173 * According to SBC-3, a transfer length of 0 is not an error. 9174 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9175 * translates to 256 blocks for those commands. 9176 */ 9177 if (num_blocks == 0) { 9178 ctl_set_success(ctsio); 9179 ctl_done((union ctl_io *)ctsio); 9180 return (CTL_RETVAL_COMPLETE); 9181 } 9182 9183 /* Set FUA and/or DPO if caches are disabled. */ 9184 if (isread) { 9185 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9186 SCP_RCD) != 0) 9187 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9188 } else { 9189 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9190 SCP_WCE) == 0) 9191 flags |= CTL_LLF_FUA; 9192 } 9193 9194 lbalen = (struct ctl_lba_len_flags *) 9195 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9196 lbalen->lba = lba; 9197 lbalen->len = num_blocks; 9198 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9199 9200 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9201 ctsio->kern_rel_offset = 0; 9202 9203 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9204 9205 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9206 9207 return (retval); 9208} 9209 9210static int 9211ctl_cnw_cont(union ctl_io *io) 9212{ 9213 struct ctl_scsiio *ctsio; 9214 struct ctl_lun *lun; 9215 struct ctl_lba_len_flags *lbalen; 9216 int retval; 9217 9218 ctsio = &io->scsiio; 9219 ctsio->io_hdr.status = CTL_STATUS_NONE; 9220 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9221 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9222 lbalen = (struct ctl_lba_len_flags *) 9223 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9224 lbalen->flags &= ~CTL_LLF_COMPARE; 9225 lbalen->flags |= CTL_LLF_WRITE; 9226 9227 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9228 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9229 return (retval); 9230} 9231 9232int 9233ctl_cnw(struct ctl_scsiio *ctsio) 9234{ 9235 struct ctl_lun *lun; 9236 struct ctl_lba_len_flags *lbalen; 9237 uint64_t lba; 9238 uint32_t num_blocks; 9239 int flags, retval; 9240 9241 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9242 9243 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9244 9245 flags = 0; 9246 retval = CTL_RETVAL_COMPLETE; 9247 9248 switch (ctsio->cdb[0]) { 9249 case COMPARE_AND_WRITE: { 9250 struct scsi_compare_and_write *cdb; 9251 9252 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9253 if (cdb->byte2 & SRW10_FUA) 9254 flags |= CTL_LLF_FUA; 9255 if (cdb->byte2 & SRW10_DPO) 9256 flags |= CTL_LLF_DPO; 9257 lba = scsi_8btou64(cdb->addr); 9258 num_blocks = cdb->length; 9259 break; 9260 } 9261 default: 9262 /* 9263 * We got a command we don't support. This shouldn't 9264 * happen, commands should be filtered out above us. 9265 */ 9266 ctl_set_invalid_opcode(ctsio); 9267 ctl_done((union ctl_io *)ctsio); 9268 9269 return (CTL_RETVAL_COMPLETE); 9270 break; /* NOTREACHED */ 9271 } 9272 9273 /* 9274 * The first check is to make sure we're in bounds, the second 9275 * check is to catch wrap-around problems. If the lba + num blocks 9276 * is less than the lba, then we've wrapped around and the block 9277 * range is invalid anyway. 9278 */ 9279 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9280 || ((lba + num_blocks) < lba)) { 9281 ctl_set_lba_out_of_range(ctsio); 9282 ctl_done((union ctl_io *)ctsio); 9283 return (CTL_RETVAL_COMPLETE); 9284 } 9285 9286 /* 9287 * According to SBC-3, a transfer length of 0 is not an error. 9288 */ 9289 if (num_blocks == 0) { 9290 ctl_set_success(ctsio); 9291 ctl_done((union ctl_io *)ctsio); 9292 return (CTL_RETVAL_COMPLETE); 9293 } 9294 9295 /* Set FUA if write cache is disabled. */ 9296 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9297 SCP_WCE) == 0) 9298 flags |= CTL_LLF_FUA; 9299 9300 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9301 ctsio->kern_rel_offset = 0; 9302 9303 /* 9304 * Set the IO_CONT flag, so that if this I/O gets passed to 9305 * ctl_data_submit_done(), it'll get passed back to 9306 * ctl_ctl_cnw_cont() for further processing. 9307 */ 9308 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9309 ctsio->io_cont = ctl_cnw_cont; 9310 9311 lbalen = (struct ctl_lba_len_flags *) 9312 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9313 lbalen->lba = lba; 9314 lbalen->len = num_blocks; 9315 lbalen->flags = CTL_LLF_COMPARE | flags; 9316 9317 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9318 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9319 return (retval); 9320} 9321 9322int 9323ctl_verify(struct ctl_scsiio *ctsio) 9324{ 9325 struct ctl_lun *lun; 9326 struct ctl_lba_len_flags *lbalen; 9327 uint64_t lba; 9328 uint32_t num_blocks; 9329 int bytchk, flags; 9330 int retval; 9331 9332 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9333 9334 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9335 9336 bytchk = 0; 9337 flags = CTL_LLF_FUA; 9338 retval = CTL_RETVAL_COMPLETE; 9339 9340 switch (ctsio->cdb[0]) { 9341 case VERIFY_10: { 9342 struct scsi_verify_10 *cdb; 9343 9344 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9345 if (cdb->byte2 & SVFY_BYTCHK) 9346 bytchk = 1; 9347 if (cdb->byte2 & SVFY_DPO) 9348 flags |= CTL_LLF_DPO; 9349 lba = scsi_4btoul(cdb->addr); 9350 num_blocks = scsi_2btoul(cdb->length); 9351 break; 9352 } 9353 case VERIFY_12: { 9354 struct scsi_verify_12 *cdb; 9355 9356 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9357 if (cdb->byte2 & SVFY_BYTCHK) 9358 bytchk = 1; 9359 if (cdb->byte2 & SVFY_DPO) 9360 flags |= CTL_LLF_DPO; 9361 lba = scsi_4btoul(cdb->addr); 9362 num_blocks = scsi_4btoul(cdb->length); 9363 break; 9364 } 9365 case VERIFY_16: { 9366 struct scsi_rw_16 *cdb; 9367 9368 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9369 if (cdb->byte2 & SVFY_BYTCHK) 9370 bytchk = 1; 9371 if (cdb->byte2 & SVFY_DPO) 9372 flags |= CTL_LLF_DPO; 9373 lba = scsi_8btou64(cdb->addr); 9374 num_blocks = scsi_4btoul(cdb->length); 9375 break; 9376 } 9377 default: 9378 /* 9379 * We got a command we don't support. This shouldn't 9380 * happen, commands should be filtered out above us. 9381 */ 9382 ctl_set_invalid_opcode(ctsio); 9383 ctl_done((union ctl_io *)ctsio); 9384 return (CTL_RETVAL_COMPLETE); 9385 } 9386 9387 /* 9388 * The first check is to make sure we're in bounds, the second 9389 * check is to catch wrap-around problems. If the lba + num blocks 9390 * is less than the lba, then we've wrapped around and the block 9391 * range is invalid anyway. 9392 */ 9393 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9394 || ((lba + num_blocks) < lba)) { 9395 ctl_set_lba_out_of_range(ctsio); 9396 ctl_done((union ctl_io *)ctsio); 9397 return (CTL_RETVAL_COMPLETE); 9398 } 9399 9400 /* 9401 * According to SBC-3, a transfer length of 0 is not an error. 9402 */ 9403 if (num_blocks == 0) { 9404 ctl_set_success(ctsio); 9405 ctl_done((union ctl_io *)ctsio); 9406 return (CTL_RETVAL_COMPLETE); 9407 } 9408 9409 lbalen = (struct ctl_lba_len_flags *) 9410 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9411 lbalen->lba = lba; 9412 lbalen->len = num_blocks; 9413 if (bytchk) { 9414 lbalen->flags = CTL_LLF_COMPARE | flags; 9415 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9416 } else { 9417 lbalen->flags = CTL_LLF_VERIFY | flags; 9418 ctsio->kern_total_len = 0; 9419 } 9420 ctsio->kern_rel_offset = 0; 9421 9422 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9423 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9424 return (retval); 9425} 9426 9427int 9428ctl_report_luns(struct ctl_scsiio *ctsio) 9429{ 9430 struct scsi_report_luns *cdb; 9431 struct scsi_report_luns_data *lun_data; 9432 struct ctl_lun *lun, *request_lun; 9433 int num_luns, retval; 9434 uint32_t alloc_len, lun_datalen; 9435 int num_filled, well_known; 9436 uint32_t initidx, targ_lun_id, lun_id; 9437 9438 retval = CTL_RETVAL_COMPLETE; 9439 well_known = 0; 9440 9441 cdb = (struct scsi_report_luns *)ctsio->cdb; 9442 9443 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9444 9445 mtx_lock(&control_softc->ctl_lock); 9446 num_luns = control_softc->num_luns; 9447 mtx_unlock(&control_softc->ctl_lock); 9448 9449 switch (cdb->select_report) { 9450 case RPL_REPORT_DEFAULT: 9451 case RPL_REPORT_ALL: 9452 break; 9453 case RPL_REPORT_WELLKNOWN: 9454 well_known = 1; 9455 num_luns = 0; 9456 break; 9457 default: 9458 ctl_set_invalid_field(ctsio, 9459 /*sks_valid*/ 1, 9460 /*command*/ 1, 9461 /*field*/ 2, 9462 /*bit_valid*/ 0, 9463 /*bit*/ 0); 9464 ctl_done((union ctl_io *)ctsio); 9465 return (retval); 9466 break; /* NOTREACHED */ 9467 } 9468 9469 alloc_len = scsi_4btoul(cdb->length); 9470 /* 9471 * The initiator has to allocate at least 16 bytes for this request, 9472 * so he can at least get the header and the first LUN. Otherwise 9473 * we reject the request (per SPC-3 rev 14, section 6.21). 9474 */ 9475 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9476 sizeof(struct scsi_report_luns_lundata))) { 9477 ctl_set_invalid_field(ctsio, 9478 /*sks_valid*/ 1, 9479 /*command*/ 1, 9480 /*field*/ 6, 9481 /*bit_valid*/ 0, 9482 /*bit*/ 0); 9483 ctl_done((union ctl_io *)ctsio); 9484 return (retval); 9485 } 9486 9487 request_lun = (struct ctl_lun *) 9488 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9489 9490 lun_datalen = sizeof(*lun_data) + 9491 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9492 9493 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9494 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9495 ctsio->kern_sg_entries = 0; 9496 9497 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9498 9499 mtx_lock(&control_softc->ctl_lock); 9500 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9501 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9502 if (lun_id >= CTL_MAX_LUNS) 9503 continue; 9504 lun = control_softc->ctl_luns[lun_id]; 9505 if (lun == NULL) 9506 continue; 9507 9508 if (targ_lun_id <= 0xff) { 9509 /* 9510 * Peripheral addressing method, bus number 0. 9511 */ 9512 lun_data->luns[num_filled].lundata[0] = 9513 RPL_LUNDATA_ATYP_PERIPH; 9514 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9515 num_filled++; 9516 } else if (targ_lun_id <= 0x3fff) { 9517 /* 9518 * Flat addressing method. 9519 */ 9520 lun_data->luns[num_filled].lundata[0] = 9521 RPL_LUNDATA_ATYP_FLAT | 9522 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9523#ifdef OLDCTLHEADERS 9524 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9525 (targ_lun_id & SRLD_BUS_LUN_MASK); 9526#endif 9527 lun_data->luns[num_filled].lundata[1] = 9528#ifdef OLDCTLHEADERS 9529 targ_lun_id >> SRLD_BUS_LUN_BITS; 9530#endif 9531 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9532 num_filled++; 9533 } else { 9534 printf("ctl_report_luns: bogus LUN number %jd, " 9535 "skipping\n", (intmax_t)targ_lun_id); 9536 } 9537 /* 9538 * According to SPC-3, rev 14 section 6.21: 9539 * 9540 * "The execution of a REPORT LUNS command to any valid and 9541 * installed logical unit shall clear the REPORTED LUNS DATA 9542 * HAS CHANGED unit attention condition for all logical 9543 * units of that target with respect to the requesting 9544 * initiator. A valid and installed logical unit is one 9545 * having a PERIPHERAL QUALIFIER of 000b in the standard 9546 * INQUIRY data (see 6.4.2)." 9547 * 9548 * If request_lun is NULL, the LUN this report luns command 9549 * was issued to is either disabled or doesn't exist. In that 9550 * case, we shouldn't clear any pending lun change unit 9551 * attention. 9552 */ 9553 if (request_lun != NULL) { 9554 mtx_lock(&lun->lun_lock); 9555 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9556 mtx_unlock(&lun->lun_lock); 9557 } 9558 } 9559 mtx_unlock(&control_softc->ctl_lock); 9560 9561 /* 9562 * It's quite possible that we've returned fewer LUNs than we allocated 9563 * space for. Trim it. 9564 */ 9565 lun_datalen = sizeof(*lun_data) + 9566 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9567 9568 if (lun_datalen < alloc_len) { 9569 ctsio->residual = alloc_len - lun_datalen; 9570 ctsio->kern_data_len = lun_datalen; 9571 ctsio->kern_total_len = lun_datalen; 9572 } else { 9573 ctsio->residual = 0; 9574 ctsio->kern_data_len = alloc_len; 9575 ctsio->kern_total_len = alloc_len; 9576 } 9577 ctsio->kern_data_resid = 0; 9578 ctsio->kern_rel_offset = 0; 9579 ctsio->kern_sg_entries = 0; 9580 9581 /* 9582 * We set this to the actual data length, regardless of how much 9583 * space we actually have to return results. If the user looks at 9584 * this value, he'll know whether or not he allocated enough space 9585 * and reissue the command if necessary. We don't support well 9586 * known logical units, so if the user asks for that, return none. 9587 */ 9588 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9589 9590 /* 9591 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9592 * this request. 9593 */ 9594 ctsio->scsi_status = SCSI_STATUS_OK; 9595 9596 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9597 ctsio->be_move_done = ctl_config_move_done; 9598 ctl_datamove((union ctl_io *)ctsio); 9599 9600 return (retval); 9601} 9602 9603int 9604ctl_request_sense(struct ctl_scsiio *ctsio) 9605{ 9606 struct scsi_request_sense *cdb; 9607 struct scsi_sense_data *sense_ptr; 9608 struct ctl_lun *lun; 9609 uint32_t initidx; 9610 int have_error; 9611 scsi_sense_data_type sense_format; 9612 9613 cdb = (struct scsi_request_sense *)ctsio->cdb; 9614 9615 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9616 9617 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9618 9619 /* 9620 * Determine which sense format the user wants. 9621 */ 9622 if (cdb->byte2 & SRS_DESC) 9623 sense_format = SSD_TYPE_DESC; 9624 else 9625 sense_format = SSD_TYPE_FIXED; 9626 9627 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9628 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9629 ctsio->kern_sg_entries = 0; 9630 9631 /* 9632 * struct scsi_sense_data, which is currently set to 256 bytes, is 9633 * larger than the largest allowed value for the length field in the 9634 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9635 */ 9636 ctsio->residual = 0; 9637 ctsio->kern_data_len = cdb->length; 9638 ctsio->kern_total_len = cdb->length; 9639 9640 ctsio->kern_data_resid = 0; 9641 ctsio->kern_rel_offset = 0; 9642 ctsio->kern_sg_entries = 0; 9643 9644 /* 9645 * If we don't have a LUN, we don't have any pending sense. 9646 */ 9647 if (lun == NULL) 9648 goto no_sense; 9649 9650 have_error = 0; 9651 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9652 /* 9653 * Check for pending sense, and then for pending unit attentions. 9654 * Pending sense gets returned first, then pending unit attentions. 9655 */ 9656 mtx_lock(&lun->lun_lock); 9657#ifdef CTL_WITH_CA 9658 if (ctl_is_set(lun->have_ca, initidx)) { 9659 scsi_sense_data_type stored_format; 9660 9661 /* 9662 * Check to see which sense format was used for the stored 9663 * sense data. 9664 */ 9665 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9666 9667 /* 9668 * If the user requested a different sense format than the 9669 * one we stored, then we need to convert it to the other 9670 * format. If we're going from descriptor to fixed format 9671 * sense data, we may lose things in translation, depending 9672 * on what options were used. 9673 * 9674 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9675 * for some reason we'll just copy it out as-is. 9676 */ 9677 if ((stored_format == SSD_TYPE_FIXED) 9678 && (sense_format == SSD_TYPE_DESC)) 9679 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9680 &lun->pending_sense[initidx], 9681 (struct scsi_sense_data_desc *)sense_ptr); 9682 else if ((stored_format == SSD_TYPE_DESC) 9683 && (sense_format == SSD_TYPE_FIXED)) 9684 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9685 &lun->pending_sense[initidx], 9686 (struct scsi_sense_data_fixed *)sense_ptr); 9687 else 9688 memcpy(sense_ptr, &lun->pending_sense[initidx], 9689 ctl_min(sizeof(*sense_ptr), 9690 sizeof(lun->pending_sense[initidx]))); 9691 9692 ctl_clear_mask(lun->have_ca, initidx); 9693 have_error = 1; 9694 } else 9695#endif 9696 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9697 ctl_ua_type ua_type; 9698 9699 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9700 sense_ptr, sense_format); 9701 if (ua_type != CTL_UA_NONE) 9702 have_error = 1; 9703 } 9704 mtx_unlock(&lun->lun_lock); 9705 9706 /* 9707 * We already have a pending error, return it. 9708 */ 9709 if (have_error != 0) { 9710 /* 9711 * We report the SCSI status as OK, since the status of the 9712 * request sense command itself is OK. 9713 */ 9714 ctsio->scsi_status = SCSI_STATUS_OK; 9715 9716 /* 9717 * We report 0 for the sense length, because we aren't doing 9718 * autosense in this case. We're reporting sense as 9719 * parameter data. 9720 */ 9721 ctsio->sense_len = 0; 9722 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9723 ctsio->be_move_done = ctl_config_move_done; 9724 ctl_datamove((union ctl_io *)ctsio); 9725 9726 return (CTL_RETVAL_COMPLETE); 9727 } 9728 9729no_sense: 9730 9731 /* 9732 * No sense information to report, so we report that everything is 9733 * okay. 9734 */ 9735 ctl_set_sense_data(sense_ptr, 9736 lun, 9737 sense_format, 9738 /*current_error*/ 1, 9739 /*sense_key*/ SSD_KEY_NO_SENSE, 9740 /*asc*/ 0x00, 9741 /*ascq*/ 0x00, 9742 SSD_ELEM_NONE); 9743 9744 ctsio->scsi_status = SCSI_STATUS_OK; 9745 9746 /* 9747 * We report 0 for the sense length, because we aren't doing 9748 * autosense in this case. We're reporting sense as parameter data. 9749 */ 9750 ctsio->sense_len = 0; 9751 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9752 ctsio->be_move_done = ctl_config_move_done; 9753 ctl_datamove((union ctl_io *)ctsio); 9754 9755 return (CTL_RETVAL_COMPLETE); 9756} 9757 9758int 9759ctl_tur(struct ctl_scsiio *ctsio) 9760{ 9761 struct ctl_lun *lun; 9762 9763 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9764 9765 CTL_DEBUG_PRINT(("ctl_tur\n")); 9766 9767 if (lun == NULL) 9768 return (EINVAL); 9769 9770 ctsio->scsi_status = SCSI_STATUS_OK; 9771 ctsio->io_hdr.status = CTL_SUCCESS; 9772 9773 ctl_done((union ctl_io *)ctsio); 9774 9775 return (CTL_RETVAL_COMPLETE); 9776} 9777 9778#ifdef notyet 9779static int 9780ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9781{ 9782 9783} 9784#endif 9785 9786static int 9787ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9788{ 9789 struct scsi_vpd_supported_pages *pages; 9790 int sup_page_size; 9791 struct ctl_lun *lun; 9792 9793 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9794 9795 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9796 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9797 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9798 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9799 ctsio->kern_sg_entries = 0; 9800 9801 if (sup_page_size < alloc_len) { 9802 ctsio->residual = alloc_len - sup_page_size; 9803 ctsio->kern_data_len = sup_page_size; 9804 ctsio->kern_total_len = sup_page_size; 9805 } else { 9806 ctsio->residual = 0; 9807 ctsio->kern_data_len = alloc_len; 9808 ctsio->kern_total_len = alloc_len; 9809 } 9810 ctsio->kern_data_resid = 0; 9811 ctsio->kern_rel_offset = 0; 9812 ctsio->kern_sg_entries = 0; 9813 9814 /* 9815 * The control device is always connected. The disk device, on the 9816 * other hand, may not be online all the time. Need to change this 9817 * to figure out whether the disk device is actually online or not. 9818 */ 9819 if (lun != NULL) 9820 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9821 lun->be_lun->lun_type; 9822 else 9823 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9824 9825 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9826 /* Supported VPD pages */ 9827 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9828 /* Serial Number */ 9829 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9830 /* Device Identification */ 9831 pages->page_list[2] = SVPD_DEVICE_ID; 9832 /* Extended INQUIRY Data */ 9833 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9834 /* Mode Page Policy */ 9835 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9836 /* SCSI Ports */ 9837 pages->page_list[5] = SVPD_SCSI_PORTS; 9838 /* Third-party Copy */ 9839 pages->page_list[6] = SVPD_SCSI_TPC; 9840 /* Block limits */ 9841 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9842 /* Block Device Characteristics */ 9843 pages->page_list[8] = SVPD_BDC; 9844 /* Logical Block Provisioning */ 9845 pages->page_list[9] = SVPD_LBP; 9846 9847 ctsio->scsi_status = SCSI_STATUS_OK; 9848 9849 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9850 ctsio->be_move_done = ctl_config_move_done; 9851 ctl_datamove((union ctl_io *)ctsio); 9852 9853 return (CTL_RETVAL_COMPLETE); 9854} 9855 9856static int 9857ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9858{ 9859 struct scsi_vpd_unit_serial_number *sn_ptr; 9860 struct ctl_lun *lun; 9861 9862 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9863 9864 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9865 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9866 ctsio->kern_sg_entries = 0; 9867 9868 if (sizeof(*sn_ptr) < alloc_len) { 9869 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9870 ctsio->kern_data_len = sizeof(*sn_ptr); 9871 ctsio->kern_total_len = sizeof(*sn_ptr); 9872 } else { 9873 ctsio->residual = 0; 9874 ctsio->kern_data_len = alloc_len; 9875 ctsio->kern_total_len = alloc_len; 9876 } 9877 ctsio->kern_data_resid = 0; 9878 ctsio->kern_rel_offset = 0; 9879 ctsio->kern_sg_entries = 0; 9880 9881 /* 9882 * The control device is always connected. The disk device, on the 9883 * other hand, may not be online all the time. Need to change this 9884 * to figure out whether the disk device is actually online or not. 9885 */ 9886 if (lun != NULL) 9887 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9888 lun->be_lun->lun_type; 9889 else 9890 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9891 9892 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9893 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9894 /* 9895 * If we don't have a LUN, we just leave the serial number as 9896 * all spaces. 9897 */ 9898 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9899 if (lun != NULL) { 9900 strncpy((char *)sn_ptr->serial_num, 9901 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9902 } 9903 ctsio->scsi_status = SCSI_STATUS_OK; 9904 9905 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9906 ctsio->be_move_done = ctl_config_move_done; 9907 ctl_datamove((union ctl_io *)ctsio); 9908 9909 return (CTL_RETVAL_COMPLETE); 9910} 9911 9912 9913static int 9914ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9915{ 9916 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9917 struct ctl_lun *lun; 9918 int data_len; 9919 9920 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9921 9922 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9923 sizeof(struct scsi_vpd_mode_page_policy_descr); 9924 9925 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9926 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9927 ctsio->kern_sg_entries = 0; 9928 9929 if (data_len < alloc_len) { 9930 ctsio->residual = alloc_len - data_len; 9931 ctsio->kern_data_len = data_len; 9932 ctsio->kern_total_len = data_len; 9933 } else { 9934 ctsio->residual = 0; 9935 ctsio->kern_data_len = alloc_len; 9936 ctsio->kern_total_len = alloc_len; 9937 } 9938 ctsio->kern_data_resid = 0; 9939 ctsio->kern_rel_offset = 0; 9940 ctsio->kern_sg_entries = 0; 9941 9942 /* 9943 * The control device is always connected. The disk device, on the 9944 * other hand, may not be online all the time. 9945 */ 9946 if (lun != NULL) 9947 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9948 lun->be_lun->lun_type; 9949 else 9950 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9951 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9952 eid_ptr->page_length = data_len - 4; 9953 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9954 eid_ptr->flags3 = SVPD_EID_V_SUP; 9955 9956 ctsio->scsi_status = SCSI_STATUS_OK; 9957 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9958 ctsio->be_move_done = ctl_config_move_done; 9959 ctl_datamove((union ctl_io *)ctsio); 9960 9961 return (CTL_RETVAL_COMPLETE); 9962} 9963 9964static int 9965ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9966{ 9967 struct scsi_vpd_mode_page_policy *mpp_ptr; 9968 struct ctl_lun *lun; 9969 int data_len; 9970 9971 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9972 9973 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9974 sizeof(struct scsi_vpd_mode_page_policy_descr); 9975 9976 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9977 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9978 ctsio->kern_sg_entries = 0; 9979 9980 if (data_len < alloc_len) { 9981 ctsio->residual = alloc_len - data_len; 9982 ctsio->kern_data_len = data_len; 9983 ctsio->kern_total_len = data_len; 9984 } else { 9985 ctsio->residual = 0; 9986 ctsio->kern_data_len = alloc_len; 9987 ctsio->kern_total_len = alloc_len; 9988 } 9989 ctsio->kern_data_resid = 0; 9990 ctsio->kern_rel_offset = 0; 9991 ctsio->kern_sg_entries = 0; 9992 9993 /* 9994 * The control device is always connected. The disk device, on the 9995 * other hand, may not be online all the time. 9996 */ 9997 if (lun != NULL) 9998 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9999 lun->be_lun->lun_type; 10000 else 10001 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10002 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 10003 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 10004 mpp_ptr->descr[0].page_code = 0x3f; 10005 mpp_ptr->descr[0].subpage_code = 0xff; 10006 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10007 10008 ctsio->scsi_status = SCSI_STATUS_OK; 10009 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10010 ctsio->be_move_done = ctl_config_move_done; 10011 ctl_datamove((union ctl_io *)ctsio); 10012 10013 return (CTL_RETVAL_COMPLETE); 10014} 10015 10016static int 10017ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10018{ 10019 struct scsi_vpd_device_id *devid_ptr; 10020 struct scsi_vpd_id_descriptor *desc; 10021 struct ctl_softc *ctl_softc; 10022 struct ctl_lun *lun; 10023 struct ctl_port *port; 10024 int data_len; 10025 uint8_t proto; 10026 10027 ctl_softc = control_softc; 10028 10029 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10030 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10031 10032 data_len = sizeof(struct scsi_vpd_device_id) + 10033 sizeof(struct scsi_vpd_id_descriptor) + 10034 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10035 sizeof(struct scsi_vpd_id_descriptor) + 10036 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10037 if (lun && lun->lun_devid) 10038 data_len += lun->lun_devid->len; 10039 if (port->port_devid) 10040 data_len += port->port_devid->len; 10041 if (port->target_devid) 10042 data_len += port->target_devid->len; 10043 10044 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10045 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10046 ctsio->kern_sg_entries = 0; 10047 10048 if (data_len < alloc_len) { 10049 ctsio->residual = alloc_len - data_len; 10050 ctsio->kern_data_len = data_len; 10051 ctsio->kern_total_len = data_len; 10052 } else { 10053 ctsio->residual = 0; 10054 ctsio->kern_data_len = alloc_len; 10055 ctsio->kern_total_len = alloc_len; 10056 } 10057 ctsio->kern_data_resid = 0; 10058 ctsio->kern_rel_offset = 0; 10059 ctsio->kern_sg_entries = 0; 10060 10061 /* 10062 * The control device is always connected. The disk device, on the 10063 * other hand, may not be online all the time. 10064 */ 10065 if (lun != NULL) 10066 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10067 lun->be_lun->lun_type; 10068 else 10069 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10070 devid_ptr->page_code = SVPD_DEVICE_ID; 10071 scsi_ulto2b(data_len - 4, devid_ptr->length); 10072 10073 if (port->port_type == CTL_PORT_FC) 10074 proto = SCSI_PROTO_FC << 4; 10075 else if (port->port_type == CTL_PORT_ISCSI) 10076 proto = SCSI_PROTO_ISCSI << 4; 10077 else 10078 proto = SCSI_PROTO_SPI << 4; 10079 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10080 10081 /* 10082 * We're using a LUN association here. i.e., this device ID is a 10083 * per-LUN identifier. 10084 */ 10085 if (lun && lun->lun_devid) { 10086 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10087 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10088 lun->lun_devid->len); 10089 } 10090 10091 /* 10092 * This is for the WWPN which is a port association. 10093 */ 10094 if (port->port_devid) { 10095 memcpy(desc, port->port_devid->data, port->port_devid->len); 10096 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10097 port->port_devid->len); 10098 } 10099 10100 /* 10101 * This is for the Relative Target Port(type 4h) identifier 10102 */ 10103 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10104 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10105 SVPD_ID_TYPE_RELTARG; 10106 desc->length = 4; 10107 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10108 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10109 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10110 10111 /* 10112 * This is for the Target Port Group(type 5h) identifier 10113 */ 10114 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10115 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10116 SVPD_ID_TYPE_TPORTGRP; 10117 desc->length = 4; 10118 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10119 &desc->identifier[2]); 10120 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10121 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10122 10123 /* 10124 * This is for the Target identifier 10125 */ 10126 if (port->target_devid) { 10127 memcpy(desc, port->target_devid->data, port->target_devid->len); 10128 } 10129 10130 ctsio->scsi_status = SCSI_STATUS_OK; 10131 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10132 ctsio->be_move_done = ctl_config_move_done; 10133 ctl_datamove((union ctl_io *)ctsio); 10134 10135 return (CTL_RETVAL_COMPLETE); 10136} 10137 10138static int 10139ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10140{ 10141 struct ctl_softc *softc = control_softc; 10142 struct scsi_vpd_scsi_ports *sp; 10143 struct scsi_vpd_port_designation *pd; 10144 struct scsi_vpd_port_designation_cont *pdc; 10145 struct ctl_lun *lun; 10146 struct ctl_port *port; 10147 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10148 int num_target_port_groups, single; 10149 10150 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10151 10152 single = ctl_is_single; 10153 if (single) 10154 num_target_port_groups = 1; 10155 else 10156 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10157 num_target_ports = 0; 10158 iid_len = 0; 10159 id_len = 0; 10160 mtx_lock(&softc->ctl_lock); 10161 STAILQ_FOREACH(port, &softc->port_list, links) { 10162 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10163 continue; 10164 if (lun != NULL && 10165 ctl_map_lun_back(port->targ_port, lun->lun) >= 10166 CTL_MAX_LUNS) 10167 continue; 10168 num_target_ports++; 10169 if (port->init_devid) 10170 iid_len += port->init_devid->len; 10171 if (port->port_devid) 10172 id_len += port->port_devid->len; 10173 } 10174 mtx_unlock(&softc->ctl_lock); 10175 10176 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10177 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10178 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10179 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10180 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10181 ctsio->kern_sg_entries = 0; 10182 10183 if (data_len < alloc_len) { 10184 ctsio->residual = alloc_len - data_len; 10185 ctsio->kern_data_len = data_len; 10186 ctsio->kern_total_len = data_len; 10187 } else { 10188 ctsio->residual = 0; 10189 ctsio->kern_data_len = alloc_len; 10190 ctsio->kern_total_len = alloc_len; 10191 } 10192 ctsio->kern_data_resid = 0; 10193 ctsio->kern_rel_offset = 0; 10194 ctsio->kern_sg_entries = 0; 10195 10196 /* 10197 * The control device is always connected. The disk device, on the 10198 * other hand, may not be online all the time. Need to change this 10199 * to figure out whether the disk device is actually online or not. 10200 */ 10201 if (lun != NULL) 10202 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10203 lun->be_lun->lun_type; 10204 else 10205 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10206 10207 sp->page_code = SVPD_SCSI_PORTS; 10208 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10209 sp->page_length); 10210 pd = &sp->design[0]; 10211 10212 mtx_lock(&softc->ctl_lock); 10213 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10214 pg = 0; 10215 else 10216 pg = 1; 10217 for (g = 0; g < num_target_port_groups; g++) { 10218 STAILQ_FOREACH(port, &softc->port_list, links) { 10219 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10220 continue; 10221 if (lun != NULL && 10222 ctl_map_lun_back(port->targ_port, lun->lun) >= 10223 CTL_MAX_LUNS) 10224 continue; 10225 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10226 scsi_ulto2b(p, pd->relative_port_id); 10227 if (port->init_devid && g == pg) { 10228 iid_len = port->init_devid->len; 10229 memcpy(pd->initiator_transportid, 10230 port->init_devid->data, port->init_devid->len); 10231 } else 10232 iid_len = 0; 10233 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10234 pdc = (struct scsi_vpd_port_designation_cont *) 10235 (&pd->initiator_transportid[iid_len]); 10236 if (port->port_devid && g == pg) { 10237 id_len = port->port_devid->len; 10238 memcpy(pdc->target_port_descriptors, 10239 port->port_devid->data, port->port_devid->len); 10240 } else 10241 id_len = 0; 10242 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10243 pd = (struct scsi_vpd_port_designation *) 10244 ((uint8_t *)pdc->target_port_descriptors + id_len); 10245 } 10246 } 10247 mtx_unlock(&softc->ctl_lock); 10248 10249 ctsio->scsi_status = SCSI_STATUS_OK; 10250 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10251 ctsio->be_move_done = ctl_config_move_done; 10252 ctl_datamove((union ctl_io *)ctsio); 10253 10254 return (CTL_RETVAL_COMPLETE); 10255} 10256 10257static int 10258ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10259{ 10260 struct scsi_vpd_block_limits *bl_ptr; 10261 struct ctl_lun *lun; 10262 int bs; 10263 10264 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10265 10266 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10267 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10268 ctsio->kern_sg_entries = 0; 10269 10270 if (sizeof(*bl_ptr) < alloc_len) { 10271 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10272 ctsio->kern_data_len = sizeof(*bl_ptr); 10273 ctsio->kern_total_len = sizeof(*bl_ptr); 10274 } else { 10275 ctsio->residual = 0; 10276 ctsio->kern_data_len = alloc_len; 10277 ctsio->kern_total_len = alloc_len; 10278 } 10279 ctsio->kern_data_resid = 0; 10280 ctsio->kern_rel_offset = 0; 10281 ctsio->kern_sg_entries = 0; 10282 10283 /* 10284 * The control device is always connected. The disk device, on the 10285 * other hand, may not be online all the time. Need to change this 10286 * to figure out whether the disk device is actually online or not. 10287 */ 10288 if (lun != NULL) 10289 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10290 lun->be_lun->lun_type; 10291 else 10292 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10293 10294 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10295 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10296 bl_ptr->max_cmp_write_len = 0xff; 10297 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10298 if (lun != NULL) { 10299 bs = lun->be_lun->blocksize; 10300 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10301 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10302 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10303 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10304 if (lun->be_lun->pblockexp != 0) { 10305 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10306 bl_ptr->opt_unmap_grain); 10307 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10308 bl_ptr->unmap_grain_align); 10309 } 10310 } 10311 } 10312 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10313 10314 ctsio->scsi_status = SCSI_STATUS_OK; 10315 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10316 ctsio->be_move_done = ctl_config_move_done; 10317 ctl_datamove((union ctl_io *)ctsio); 10318 10319 return (CTL_RETVAL_COMPLETE); 10320} 10321 10322static int 10323ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10324{ 10325 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10326 struct ctl_lun *lun; 10327 10328 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10329 10330 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10331 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10332 ctsio->kern_sg_entries = 0; 10333 10334 if (sizeof(*bdc_ptr) < alloc_len) { 10335 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10336 ctsio->kern_data_len = sizeof(*bdc_ptr); 10337 ctsio->kern_total_len = sizeof(*bdc_ptr); 10338 } else { 10339 ctsio->residual = 0; 10340 ctsio->kern_data_len = alloc_len; 10341 ctsio->kern_total_len = alloc_len; 10342 } 10343 ctsio->kern_data_resid = 0; 10344 ctsio->kern_rel_offset = 0; 10345 ctsio->kern_sg_entries = 0; 10346 10347 /* 10348 * The control device is always connected. The disk device, on the 10349 * other hand, may not be online all the time. Need to change this 10350 * to figure out whether the disk device is actually online or not. 10351 */ 10352 if (lun != NULL) 10353 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10354 lun->be_lun->lun_type; 10355 else 10356 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10357 bdc_ptr->page_code = SVPD_BDC; 10358 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10359 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10360 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10361 10362 ctsio->scsi_status = SCSI_STATUS_OK; 10363 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10364 ctsio->be_move_done = ctl_config_move_done; 10365 ctl_datamove((union ctl_io *)ctsio); 10366 10367 return (CTL_RETVAL_COMPLETE); 10368} 10369 10370static int 10371ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10372{ 10373 struct scsi_vpd_logical_block_prov *lbp_ptr; 10374 struct ctl_lun *lun; 10375 10376 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10377 10378 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10379 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10380 ctsio->kern_sg_entries = 0; 10381 10382 if (sizeof(*lbp_ptr) < alloc_len) { 10383 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10384 ctsio->kern_data_len = sizeof(*lbp_ptr); 10385 ctsio->kern_total_len = sizeof(*lbp_ptr); 10386 } else { 10387 ctsio->residual = 0; 10388 ctsio->kern_data_len = alloc_len; 10389 ctsio->kern_total_len = alloc_len; 10390 } 10391 ctsio->kern_data_resid = 0; 10392 ctsio->kern_rel_offset = 0; 10393 ctsio->kern_sg_entries = 0; 10394 10395 /* 10396 * The control device is always connected. The disk device, on the 10397 * other hand, may not be online all the time. Need to change this 10398 * to figure out whether the disk device is actually online or not. 10399 */ 10400 if (lun != NULL) 10401 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10402 lun->be_lun->lun_type; 10403 else 10404 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10405 10406 lbp_ptr->page_code = SVPD_LBP; 10407 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10408 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10409 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10410 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10411 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10412 } 10413 10414 ctsio->scsi_status = SCSI_STATUS_OK; 10415 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10416 ctsio->be_move_done = ctl_config_move_done; 10417 ctl_datamove((union ctl_io *)ctsio); 10418 10419 return (CTL_RETVAL_COMPLETE); 10420} 10421 10422static int 10423ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10424{ 10425 struct scsi_inquiry *cdb; 10426 struct ctl_lun *lun; 10427 int alloc_len, retval; 10428 10429 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10430 cdb = (struct scsi_inquiry *)ctsio->cdb; 10431 10432 retval = CTL_RETVAL_COMPLETE; 10433 10434 alloc_len = scsi_2btoul(cdb->length); 10435 10436 switch (cdb->page_code) { 10437 case SVPD_SUPPORTED_PAGES: 10438 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10439 break; 10440 case SVPD_UNIT_SERIAL_NUMBER: 10441 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10442 break; 10443 case SVPD_DEVICE_ID: 10444 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10445 break; 10446 case SVPD_EXTENDED_INQUIRY_DATA: 10447 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10448 break; 10449 case SVPD_MODE_PAGE_POLICY: 10450 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10451 break; 10452 case SVPD_SCSI_PORTS: 10453 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10454 break; 10455 case SVPD_SCSI_TPC: 10456 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10457 break; 10458 case SVPD_BLOCK_LIMITS: 10459 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10460 break; 10461 case SVPD_BDC: 10462 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10463 break; 10464 case SVPD_LBP: 10465 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10466 break; 10467 default: 10468 ctl_set_invalid_field(ctsio, 10469 /*sks_valid*/ 1, 10470 /*command*/ 1, 10471 /*field*/ 2, 10472 /*bit_valid*/ 0, 10473 /*bit*/ 0); 10474 ctl_done((union ctl_io *)ctsio); 10475 retval = CTL_RETVAL_COMPLETE; 10476 break; 10477 } 10478 10479 return (retval); 10480} 10481 10482static int 10483ctl_inquiry_std(struct ctl_scsiio *ctsio) 10484{ 10485 struct scsi_inquiry_data *inq_ptr; 10486 struct scsi_inquiry *cdb; 10487 struct ctl_softc *ctl_softc; 10488 struct ctl_lun *lun; 10489 char *val; 10490 uint32_t alloc_len; 10491 ctl_port_type port_type; 10492 10493 ctl_softc = control_softc; 10494 10495 /* 10496 * Figure out whether we're talking to a Fibre Channel port or not. 10497 * We treat the ioctl front end, and any SCSI adapters, as packetized 10498 * SCSI front ends. 10499 */ 10500 port_type = ctl_softc->ctl_ports[ 10501 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10502 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10503 port_type = CTL_PORT_SCSI; 10504 10505 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10506 cdb = (struct scsi_inquiry *)ctsio->cdb; 10507 alloc_len = scsi_2btoul(cdb->length); 10508 10509 /* 10510 * We malloc the full inquiry data size here and fill it 10511 * in. If the user only asks for less, we'll give him 10512 * that much. 10513 */ 10514 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10515 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10516 ctsio->kern_sg_entries = 0; 10517 ctsio->kern_data_resid = 0; 10518 ctsio->kern_rel_offset = 0; 10519 10520 if (sizeof(*inq_ptr) < alloc_len) { 10521 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10522 ctsio->kern_data_len = sizeof(*inq_ptr); 10523 ctsio->kern_total_len = sizeof(*inq_ptr); 10524 } else { 10525 ctsio->residual = 0; 10526 ctsio->kern_data_len = alloc_len; 10527 ctsio->kern_total_len = alloc_len; 10528 } 10529 10530 /* 10531 * If we have a LUN configured, report it as connected. Otherwise, 10532 * report that it is offline or no device is supported, depending 10533 * on the value of inquiry_pq_no_lun. 10534 * 10535 * According to the spec (SPC-4 r34), the peripheral qualifier 10536 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10537 * 10538 * "A peripheral device having the specified peripheral device type 10539 * is not connected to this logical unit. However, the device 10540 * server is capable of supporting the specified peripheral device 10541 * type on this logical unit." 10542 * 10543 * According to the same spec, the peripheral qualifier 10544 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10545 * 10546 * "The device server is not capable of supporting a peripheral 10547 * device on this logical unit. For this peripheral qualifier the 10548 * peripheral device type shall be set to 1Fh. All other peripheral 10549 * device type values are reserved for this peripheral qualifier." 10550 * 10551 * Given the text, it would seem that we probably want to report that 10552 * the LUN is offline here. There is no LUN connected, but we can 10553 * support a LUN at the given LUN number. 10554 * 10555 * In the real world, though, it sounds like things are a little 10556 * different: 10557 * 10558 * - Linux, when presented with a LUN with the offline peripheral 10559 * qualifier, will create an sg driver instance for it. So when 10560 * you attach it to CTL, you wind up with a ton of sg driver 10561 * instances. (One for every LUN that Linux bothered to probe.) 10562 * Linux does this despite the fact that it issues a REPORT LUNs 10563 * to LUN 0 to get the inventory of supported LUNs. 10564 * 10565 * - There is other anecdotal evidence (from Emulex folks) about 10566 * arrays that use the offline peripheral qualifier for LUNs that 10567 * are on the "passive" path in an active/passive array. 10568 * 10569 * So the solution is provide a hopefully reasonable default 10570 * (return bad/no LUN) and allow the user to change the behavior 10571 * with a tunable/sysctl variable. 10572 */ 10573 if (lun != NULL) 10574 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10575 lun->be_lun->lun_type; 10576 else if (ctl_softc->inquiry_pq_no_lun == 0) 10577 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10578 else 10579 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10580 10581 /* RMB in byte 2 is 0 */ 10582 inq_ptr->version = SCSI_REV_SPC4; 10583 10584 /* 10585 * According to SAM-3, even if a device only supports a single 10586 * level of LUN addressing, it should still set the HISUP bit: 10587 * 10588 * 4.9.1 Logical unit numbers overview 10589 * 10590 * All logical unit number formats described in this standard are 10591 * hierarchical in structure even when only a single level in that 10592 * hierarchy is used. The HISUP bit shall be set to one in the 10593 * standard INQUIRY data (see SPC-2) when any logical unit number 10594 * format described in this standard is used. Non-hierarchical 10595 * formats are outside the scope of this standard. 10596 * 10597 * Therefore we set the HiSup bit here. 10598 * 10599 * The reponse format is 2, per SPC-3. 10600 */ 10601 inq_ptr->response_format = SID_HiSup | 2; 10602 10603 inq_ptr->additional_length = 10604 offsetof(struct scsi_inquiry_data, vendor_specific1) - 10605 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10606 CTL_DEBUG_PRINT(("additional_length = %d\n", 10607 inq_ptr->additional_length)); 10608 10609 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10610 /* 16 bit addressing */ 10611 if (port_type == CTL_PORT_SCSI) 10612 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10613 /* XXX set the SID_MultiP bit here if we're actually going to 10614 respond on multiple ports */ 10615 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10616 10617 /* 16 bit data bus, synchronous transfers */ 10618 if (port_type == CTL_PORT_SCSI) 10619 inq_ptr->flags = SID_WBus16 | SID_Sync; 10620 /* 10621 * XXX KDM do we want to support tagged queueing on the control 10622 * device at all? 10623 */ 10624 if ((lun == NULL) 10625 || (lun->be_lun->lun_type != T_PROCESSOR)) 10626 inq_ptr->flags |= SID_CmdQue; 10627 /* 10628 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10629 * We have 8 bytes for the vendor name, and 16 bytes for the device 10630 * name and 4 bytes for the revision. 10631 */ 10632 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10633 "vendor")) == NULL) { 10634 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10635 } else { 10636 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10637 strncpy(inq_ptr->vendor, val, 10638 min(sizeof(inq_ptr->vendor), strlen(val))); 10639 } 10640 if (lun == NULL) { 10641 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10642 sizeof(inq_ptr->product)); 10643 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10644 switch (lun->be_lun->lun_type) { 10645 case T_DIRECT: 10646 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10647 sizeof(inq_ptr->product)); 10648 break; 10649 case T_PROCESSOR: 10650 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10651 sizeof(inq_ptr->product)); 10652 break; 10653 default: 10654 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10655 sizeof(inq_ptr->product)); 10656 break; 10657 } 10658 } else { 10659 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10660 strncpy(inq_ptr->product, val, 10661 min(sizeof(inq_ptr->product), strlen(val))); 10662 } 10663 10664 /* 10665 * XXX make this a macro somewhere so it automatically gets 10666 * incremented when we make changes. 10667 */ 10668 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10669 "revision")) == NULL) { 10670 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10671 } else { 10672 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10673 strncpy(inq_ptr->revision, val, 10674 min(sizeof(inq_ptr->revision), strlen(val))); 10675 } 10676 10677 /* 10678 * For parallel SCSI, we support double transition and single 10679 * transition clocking. We also support QAS (Quick Arbitration 10680 * and Selection) and Information Unit transfers on both the 10681 * control and array devices. 10682 */ 10683 if (port_type == CTL_PORT_SCSI) 10684 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10685 SID_SPI_IUS; 10686 10687 /* SAM-5 (no version claimed) */ 10688 scsi_ulto2b(0x00A0, inq_ptr->version1); 10689 /* SPC-4 (no version claimed) */ 10690 scsi_ulto2b(0x0460, inq_ptr->version2); 10691 if (port_type == CTL_PORT_FC) { 10692 /* FCP-2 ANSI INCITS.350:2003 */ 10693 scsi_ulto2b(0x0917, inq_ptr->version3); 10694 } else if (port_type == CTL_PORT_SCSI) { 10695 /* SPI-4 ANSI INCITS.362:200x */ 10696 scsi_ulto2b(0x0B56, inq_ptr->version3); 10697 } else if (port_type == CTL_PORT_ISCSI) { 10698 /* iSCSI (no version claimed) */ 10699 scsi_ulto2b(0x0960, inq_ptr->version3); 10700 } else if (port_type == CTL_PORT_SAS) { 10701 /* SAS (no version claimed) */ 10702 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10703 } 10704 10705 if (lun == NULL) { 10706 /* SBC-3 (no version claimed) */ 10707 scsi_ulto2b(0x04C0, inq_ptr->version4); 10708 } else { 10709 switch (lun->be_lun->lun_type) { 10710 case T_DIRECT: 10711 /* SBC-3 (no version claimed) */ 10712 scsi_ulto2b(0x04C0, inq_ptr->version4); 10713 break; 10714 case T_PROCESSOR: 10715 default: 10716 break; 10717 } 10718 } 10719 10720 ctsio->scsi_status = SCSI_STATUS_OK; 10721 if (ctsio->kern_data_len > 0) { 10722 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10723 ctsio->be_move_done = ctl_config_move_done; 10724 ctl_datamove((union ctl_io *)ctsio); 10725 } else { 10726 ctsio->io_hdr.status = CTL_SUCCESS; 10727 ctl_done((union ctl_io *)ctsio); 10728 } 10729 10730 return (CTL_RETVAL_COMPLETE); 10731} 10732 10733int 10734ctl_inquiry(struct ctl_scsiio *ctsio) 10735{ 10736 struct scsi_inquiry *cdb; 10737 int retval; 10738 10739 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10740 10741 cdb = (struct scsi_inquiry *)ctsio->cdb; 10742 if (cdb->byte2 & SI_EVPD) 10743 retval = ctl_inquiry_evpd(ctsio); 10744 else if (cdb->page_code == 0) 10745 retval = ctl_inquiry_std(ctsio); 10746 else { 10747 ctl_set_invalid_field(ctsio, 10748 /*sks_valid*/ 1, 10749 /*command*/ 1, 10750 /*field*/ 2, 10751 /*bit_valid*/ 0, 10752 /*bit*/ 0); 10753 ctl_done((union ctl_io *)ctsio); 10754 return (CTL_RETVAL_COMPLETE); 10755 } 10756 10757 return (retval); 10758} 10759 10760/* 10761 * For known CDB types, parse the LBA and length. 10762 */ 10763static int 10764ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10765{ 10766 if (io->io_hdr.io_type != CTL_IO_SCSI) 10767 return (1); 10768 10769 switch (io->scsiio.cdb[0]) { 10770 case COMPARE_AND_WRITE: { 10771 struct scsi_compare_and_write *cdb; 10772 10773 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10774 10775 *lba = scsi_8btou64(cdb->addr); 10776 *len = cdb->length; 10777 break; 10778 } 10779 case READ_6: 10780 case WRITE_6: { 10781 struct scsi_rw_6 *cdb; 10782 10783 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10784 10785 *lba = scsi_3btoul(cdb->addr); 10786 /* only 5 bits are valid in the most significant address byte */ 10787 *lba &= 0x1fffff; 10788 *len = cdb->length; 10789 break; 10790 } 10791 case READ_10: 10792 case WRITE_10: { 10793 struct scsi_rw_10 *cdb; 10794 10795 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10796 10797 *lba = scsi_4btoul(cdb->addr); 10798 *len = scsi_2btoul(cdb->length); 10799 break; 10800 } 10801 case WRITE_VERIFY_10: { 10802 struct scsi_write_verify_10 *cdb; 10803 10804 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10805 10806 *lba = scsi_4btoul(cdb->addr); 10807 *len = scsi_2btoul(cdb->length); 10808 break; 10809 } 10810 case READ_12: 10811 case WRITE_12: { 10812 struct scsi_rw_12 *cdb; 10813 10814 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10815 10816 *lba = scsi_4btoul(cdb->addr); 10817 *len = scsi_4btoul(cdb->length); 10818 break; 10819 } 10820 case WRITE_VERIFY_12: { 10821 struct scsi_write_verify_12 *cdb; 10822 10823 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10824 10825 *lba = scsi_4btoul(cdb->addr); 10826 *len = scsi_4btoul(cdb->length); 10827 break; 10828 } 10829 case READ_16: 10830 case WRITE_16: { 10831 struct scsi_rw_16 *cdb; 10832 10833 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10834 10835 *lba = scsi_8btou64(cdb->addr); 10836 *len = scsi_4btoul(cdb->length); 10837 break; 10838 } 10839 case WRITE_VERIFY_16: { 10840 struct scsi_write_verify_16 *cdb; 10841 10842 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10843 10844 10845 *lba = scsi_8btou64(cdb->addr); 10846 *len = scsi_4btoul(cdb->length); 10847 break; 10848 } 10849 case WRITE_SAME_10: { 10850 struct scsi_write_same_10 *cdb; 10851 10852 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10853 10854 *lba = scsi_4btoul(cdb->addr); 10855 *len = scsi_2btoul(cdb->length); 10856 break; 10857 } 10858 case WRITE_SAME_16: { 10859 struct scsi_write_same_16 *cdb; 10860 10861 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10862 10863 *lba = scsi_8btou64(cdb->addr); 10864 *len = scsi_4btoul(cdb->length); 10865 break; 10866 } 10867 case VERIFY_10: { 10868 struct scsi_verify_10 *cdb; 10869 10870 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10871 10872 *lba = scsi_4btoul(cdb->addr); 10873 *len = scsi_2btoul(cdb->length); 10874 break; 10875 } 10876 case VERIFY_12: { 10877 struct scsi_verify_12 *cdb; 10878 10879 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10880 10881 *lba = scsi_4btoul(cdb->addr); 10882 *len = scsi_4btoul(cdb->length); 10883 break; 10884 } 10885 case VERIFY_16: { 10886 struct scsi_verify_16 *cdb; 10887 10888 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10889 10890 *lba = scsi_8btou64(cdb->addr); 10891 *len = scsi_4btoul(cdb->length); 10892 break; 10893 } 10894 case UNMAP: { 10895 *lba = 0; 10896 *len = UINT64_MAX; 10897 break; 10898 } 10899 default: 10900 return (1); 10901 break; /* NOTREACHED */ 10902 } 10903 10904 return (0); 10905} 10906 10907static ctl_action 10908ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10909{ 10910 uint64_t endlba1, endlba2; 10911 10912 endlba1 = lba1 + len1 - 1; 10913 endlba2 = lba2 + len2 - 1; 10914 10915 if ((endlba1 < lba2) 10916 || (endlba2 < lba1)) 10917 return (CTL_ACTION_PASS); 10918 else 10919 return (CTL_ACTION_BLOCK); 10920} 10921 10922static int 10923ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10924{ 10925 struct ctl_ptr_len_flags *ptrlen; 10926 struct scsi_unmap_desc *buf, *end, *range; 10927 uint64_t lba; 10928 uint32_t len; 10929 10930 /* If not UNMAP -- go other way. */ 10931 if (io->io_hdr.io_type != CTL_IO_SCSI || 10932 io->scsiio.cdb[0] != UNMAP) 10933 return (CTL_ACTION_ERROR); 10934 10935 /* If UNMAP without data -- block and wait for data. */ 10936 ptrlen = (struct ctl_ptr_len_flags *) 10937 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10938 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10939 ptrlen->ptr == NULL) 10940 return (CTL_ACTION_BLOCK); 10941 10942 /* UNMAP with data -- check for collision. */ 10943 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10944 end = buf + ptrlen->len / sizeof(*buf); 10945 for (range = buf; range < end; range++) { 10946 lba = scsi_8btou64(range->lba); 10947 len = scsi_4btoul(range->length); 10948 if ((lba < lba2 + len2) && (lba + len > lba2)) 10949 return (CTL_ACTION_BLOCK); 10950 } 10951 return (CTL_ACTION_PASS); 10952} 10953 10954static ctl_action 10955ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10956{ 10957 uint64_t lba1, lba2; 10958 uint64_t len1, len2; 10959 int retval; 10960 10961 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10962 return (CTL_ACTION_ERROR); 10963 10964 retval = ctl_extent_check_unmap(io2, lba1, len1); 10965 if (retval != CTL_ACTION_ERROR) 10966 return (retval); 10967 10968 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10969 return (CTL_ACTION_ERROR); 10970 10971 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10972} 10973 10974static ctl_action 10975ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10976 union ctl_io *ooa_io) 10977{ 10978 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10979 ctl_serialize_action *serialize_row; 10980 10981 /* 10982 * The initiator attempted multiple untagged commands at the same 10983 * time. Can't do that. 10984 */ 10985 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10986 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10987 && ((pending_io->io_hdr.nexus.targ_port == 10988 ooa_io->io_hdr.nexus.targ_port) 10989 && (pending_io->io_hdr.nexus.initid.id == 10990 ooa_io->io_hdr.nexus.initid.id)) 10991 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10992 return (CTL_ACTION_OVERLAP); 10993 10994 /* 10995 * The initiator attempted to send multiple tagged commands with 10996 * the same ID. (It's fine if different initiators have the same 10997 * tag ID.) 10998 * 10999 * Even if all of those conditions are true, we don't kill the I/O 11000 * if the command ahead of us has been aborted. We won't end up 11001 * sending it to the FETD, and it's perfectly legal to resend a 11002 * command with the same tag number as long as the previous 11003 * instance of this tag number has been aborted somehow. 11004 */ 11005 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11006 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11007 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11008 && ((pending_io->io_hdr.nexus.targ_port == 11009 ooa_io->io_hdr.nexus.targ_port) 11010 && (pending_io->io_hdr.nexus.initid.id == 11011 ooa_io->io_hdr.nexus.initid.id)) 11012 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11013 return (CTL_ACTION_OVERLAP_TAG); 11014 11015 /* 11016 * If we get a head of queue tag, SAM-3 says that we should 11017 * immediately execute it. 11018 * 11019 * What happens if this command would normally block for some other 11020 * reason? e.g. a request sense with a head of queue tag 11021 * immediately after a write. Normally that would block, but this 11022 * will result in its getting executed immediately... 11023 * 11024 * We currently return "pass" instead of "skip", so we'll end up 11025 * going through the rest of the queue to check for overlapped tags. 11026 * 11027 * XXX KDM check for other types of blockage first?? 11028 */ 11029 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11030 return (CTL_ACTION_PASS); 11031 11032 /* 11033 * Ordered tags have to block until all items ahead of them 11034 * have completed. If we get called with an ordered tag, we always 11035 * block, if something else is ahead of us in the queue. 11036 */ 11037 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11038 return (CTL_ACTION_BLOCK); 11039 11040 /* 11041 * Simple tags get blocked until all head of queue and ordered tags 11042 * ahead of them have completed. I'm lumping untagged commands in 11043 * with simple tags here. XXX KDM is that the right thing to do? 11044 */ 11045 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11046 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11047 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11048 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11049 return (CTL_ACTION_BLOCK); 11050 11051 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11052 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11053 11054 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11055 11056 switch (serialize_row[pending_entry->seridx]) { 11057 case CTL_SER_BLOCK: 11058 return (CTL_ACTION_BLOCK); 11059 case CTL_SER_EXTENT: 11060 return (ctl_extent_check(pending_io, ooa_io)); 11061 case CTL_SER_EXTENTOPT: 11062 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11063 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11064 return (ctl_extent_check(pending_io, ooa_io)); 11065 /* FALLTHROUGH */ 11066 case CTL_SER_PASS: 11067 return (CTL_ACTION_PASS); 11068 case CTL_SER_BLOCKOPT: 11069 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11070 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11071 return (CTL_ACTION_BLOCK); 11072 return (CTL_ACTION_PASS); 11073 case CTL_SER_SKIP: 11074 return (CTL_ACTION_SKIP); 11075 default: 11076 panic("invalid serialization value %d", 11077 serialize_row[pending_entry->seridx]); 11078 } 11079 11080 return (CTL_ACTION_ERROR); 11081} 11082 11083/* 11084 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11085 * Assumptions: 11086 * - pending_io is generally either incoming, or on the blocked queue 11087 * - starting I/O is the I/O we want to start the check with. 11088 */ 11089static ctl_action 11090ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11091 union ctl_io *starting_io) 11092{ 11093 union ctl_io *ooa_io; 11094 ctl_action action; 11095 11096 mtx_assert(&lun->lun_lock, MA_OWNED); 11097 11098 /* 11099 * Run back along the OOA queue, starting with the current 11100 * blocked I/O and going through every I/O before it on the 11101 * queue. If starting_io is NULL, we'll just end up returning 11102 * CTL_ACTION_PASS. 11103 */ 11104 for (ooa_io = starting_io; ooa_io != NULL; 11105 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11106 ooa_links)){ 11107 11108 /* 11109 * This routine just checks to see whether 11110 * cur_blocked is blocked by ooa_io, which is ahead 11111 * of it in the queue. It doesn't queue/dequeue 11112 * cur_blocked. 11113 */ 11114 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11115 switch (action) { 11116 case CTL_ACTION_BLOCK: 11117 case CTL_ACTION_OVERLAP: 11118 case CTL_ACTION_OVERLAP_TAG: 11119 case CTL_ACTION_SKIP: 11120 case CTL_ACTION_ERROR: 11121 return (action); 11122 break; /* NOTREACHED */ 11123 case CTL_ACTION_PASS: 11124 break; 11125 default: 11126 panic("invalid action %d", action); 11127 break; /* NOTREACHED */ 11128 } 11129 } 11130 11131 return (CTL_ACTION_PASS); 11132} 11133 11134/* 11135 * Assumptions: 11136 * - An I/O has just completed, and has been removed from the per-LUN OOA 11137 * queue, so some items on the blocked queue may now be unblocked. 11138 */ 11139static int 11140ctl_check_blocked(struct ctl_lun *lun) 11141{ 11142 union ctl_io *cur_blocked, *next_blocked; 11143 11144 mtx_assert(&lun->lun_lock, MA_OWNED); 11145 11146 /* 11147 * Run forward from the head of the blocked queue, checking each 11148 * entry against the I/Os prior to it on the OOA queue to see if 11149 * there is still any blockage. 11150 * 11151 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11152 * with our removing a variable on it while it is traversing the 11153 * list. 11154 */ 11155 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11156 cur_blocked != NULL; cur_blocked = next_blocked) { 11157 union ctl_io *prev_ooa; 11158 ctl_action action; 11159 11160 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11161 blocked_links); 11162 11163 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11164 ctl_ooaq, ooa_links); 11165 11166 /* 11167 * If cur_blocked happens to be the first item in the OOA 11168 * queue now, prev_ooa will be NULL, and the action 11169 * returned will just be CTL_ACTION_PASS. 11170 */ 11171 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11172 11173 switch (action) { 11174 case CTL_ACTION_BLOCK: 11175 /* Nothing to do here, still blocked */ 11176 break; 11177 case CTL_ACTION_OVERLAP: 11178 case CTL_ACTION_OVERLAP_TAG: 11179 /* 11180 * This shouldn't happen! In theory we've already 11181 * checked this command for overlap... 11182 */ 11183 break; 11184 case CTL_ACTION_PASS: 11185 case CTL_ACTION_SKIP: { 11186 struct ctl_softc *softc; 11187 const struct ctl_cmd_entry *entry; 11188 uint32_t initidx; 11189 int isc_retval; 11190 11191 /* 11192 * The skip case shouldn't happen, this transaction 11193 * should have never made it onto the blocked queue. 11194 */ 11195 /* 11196 * This I/O is no longer blocked, we can remove it 11197 * from the blocked queue. Since this is a TAILQ 11198 * (doubly linked list), we can do O(1) removals 11199 * from any place on the list. 11200 */ 11201 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11202 blocked_links); 11203 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11204 11205 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11206 /* 11207 * Need to send IO back to original side to 11208 * run 11209 */ 11210 union ctl_ha_msg msg_info; 11211 11212 msg_info.hdr.original_sc = 11213 cur_blocked->io_hdr.original_sc; 11214 msg_info.hdr.serializing_sc = cur_blocked; 11215 msg_info.hdr.msg_type = CTL_MSG_R2R; 11216 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11217 &msg_info, sizeof(msg_info), 0)) > 11218 CTL_HA_STATUS_SUCCESS) { 11219 printf("CTL:Check Blocked error from " 11220 "ctl_ha_msg_send %d\n", 11221 isc_retval); 11222 } 11223 break; 11224 } 11225 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11226 softc = control_softc; 11227 11228 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11229 11230 /* 11231 * Check this I/O for LUN state changes that may 11232 * have happened while this command was blocked. 11233 * The LUN state may have been changed by a command 11234 * ahead of us in the queue, so we need to re-check 11235 * for any states that can be caused by SCSI 11236 * commands. 11237 */ 11238 if (ctl_scsiio_lun_check(softc, lun, entry, 11239 &cur_blocked->scsiio) == 0) { 11240 cur_blocked->io_hdr.flags |= 11241 CTL_FLAG_IS_WAS_ON_RTR; 11242 ctl_enqueue_rtr(cur_blocked); 11243 } else 11244 ctl_done(cur_blocked); 11245 break; 11246 } 11247 default: 11248 /* 11249 * This probably shouldn't happen -- we shouldn't 11250 * get CTL_ACTION_ERROR, or anything else. 11251 */ 11252 break; 11253 } 11254 } 11255 11256 return (CTL_RETVAL_COMPLETE); 11257} 11258 11259/* 11260 * This routine (with one exception) checks LUN flags that can be set by 11261 * commands ahead of us in the OOA queue. These flags have to be checked 11262 * when a command initially comes in, and when we pull a command off the 11263 * blocked queue and are preparing to execute it. The reason we have to 11264 * check these flags for commands on the blocked queue is that the LUN 11265 * state may have been changed by a command ahead of us while we're on the 11266 * blocked queue. 11267 * 11268 * Ordering is somewhat important with these checks, so please pay 11269 * careful attention to the placement of any new checks. 11270 */ 11271static int 11272ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11273 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11274{ 11275 int retval; 11276 11277 retval = 0; 11278 11279 mtx_assert(&lun->lun_lock, MA_OWNED); 11280 11281 /* 11282 * If this shelf is a secondary shelf controller, we have to reject 11283 * any media access commands. 11284 */ 11285#if 0 11286 /* No longer needed for HA */ 11287 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11288 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11289 ctl_set_lun_standby(ctsio); 11290 retval = 1; 11291 goto bailout; 11292 } 11293#endif 11294 11295 /* 11296 * Check for a reservation conflict. If this command isn't allowed 11297 * even on reserved LUNs, and if this initiator isn't the one who 11298 * reserved us, reject the command with a reservation conflict. 11299 */ 11300 if ((lun->flags & CTL_LUN_RESERVED) 11301 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11302 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11303 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11304 || (ctsio->io_hdr.nexus.targ_target.id != 11305 lun->rsv_nexus.targ_target.id)) { 11306 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11307 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11308 retval = 1; 11309 goto bailout; 11310 } 11311 } 11312 11313 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11314 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11315 uint32_t residx; 11316 11317 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11318 /* 11319 * if we aren't registered or it's a res holder type 11320 * reservation and this isn't the res holder then set a 11321 * conflict. 11322 * NOTE: Commands which might be allowed on write exclusive 11323 * type reservations are checked in the particular command 11324 * for a conflict. Read and SSU are the only ones. 11325 */ 11326 if (!lun->per_res[residx].registered 11327 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11328 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11329 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11330 retval = 1; 11331 goto bailout; 11332 } 11333 11334 } 11335 11336 if ((lun->flags & CTL_LUN_OFFLINE) 11337 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11338 ctl_set_lun_not_ready(ctsio); 11339 retval = 1; 11340 goto bailout; 11341 } 11342 11343 /* 11344 * If the LUN is stopped, see if this particular command is allowed 11345 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11346 */ 11347 if ((lun->flags & CTL_LUN_STOPPED) 11348 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11349 /* "Logical unit not ready, initializing cmd. required" */ 11350 ctl_set_lun_stopped(ctsio); 11351 retval = 1; 11352 goto bailout; 11353 } 11354 11355 if ((lun->flags & CTL_LUN_INOPERABLE) 11356 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11357 /* "Medium format corrupted" */ 11358 ctl_set_medium_format_corrupted(ctsio); 11359 retval = 1; 11360 goto bailout; 11361 } 11362 11363bailout: 11364 return (retval); 11365 11366} 11367 11368static void 11369ctl_failover_io(union ctl_io *io, int have_lock) 11370{ 11371 ctl_set_busy(&io->scsiio); 11372 ctl_done(io); 11373} 11374 11375static void 11376ctl_failover(void) 11377{ 11378 struct ctl_lun *lun; 11379 struct ctl_softc *ctl_softc; 11380 union ctl_io *next_io, *pending_io; 11381 union ctl_io *io; 11382 int lun_idx; 11383 int i; 11384 11385 ctl_softc = control_softc; 11386 11387 mtx_lock(&ctl_softc->ctl_lock); 11388 /* 11389 * Remove any cmds from the other SC from the rtr queue. These 11390 * will obviously only be for LUNs for which we're the primary. 11391 * We can't send status or get/send data for these commands. 11392 * Since they haven't been executed yet, we can just remove them. 11393 * We'll either abort them or delete them below, depending on 11394 * which HA mode we're in. 11395 */ 11396#ifdef notyet 11397 mtx_lock(&ctl_softc->queue_lock); 11398 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11399 io != NULL; io = next_io) { 11400 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11401 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11402 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11403 ctl_io_hdr, links); 11404 } 11405 mtx_unlock(&ctl_softc->queue_lock); 11406#endif 11407 11408 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11409 lun = ctl_softc->ctl_luns[lun_idx]; 11410 if (lun==NULL) 11411 continue; 11412 11413 /* 11414 * Processor LUNs are primary on both sides. 11415 * XXX will this always be true? 11416 */ 11417 if (lun->be_lun->lun_type == T_PROCESSOR) 11418 continue; 11419 11420 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11421 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11422 printf("FAILOVER: primary lun %d\n", lun_idx); 11423 /* 11424 * Remove all commands from the other SC. First from the 11425 * blocked queue then from the ooa queue. Once we have 11426 * removed them. Call ctl_check_blocked to see if there 11427 * is anything that can run. 11428 */ 11429 for (io = (union ctl_io *)TAILQ_FIRST( 11430 &lun->blocked_queue); io != NULL; io = next_io) { 11431 11432 next_io = (union ctl_io *)TAILQ_NEXT( 11433 &io->io_hdr, blocked_links); 11434 11435 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11436 TAILQ_REMOVE(&lun->blocked_queue, 11437 &io->io_hdr,blocked_links); 11438 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11439 TAILQ_REMOVE(&lun->ooa_queue, 11440 &io->io_hdr, ooa_links); 11441 11442 ctl_free_io(io); 11443 } 11444 } 11445 11446 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11447 io != NULL; io = next_io) { 11448 11449 next_io = (union ctl_io *)TAILQ_NEXT( 11450 &io->io_hdr, ooa_links); 11451 11452 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11453 11454 TAILQ_REMOVE(&lun->ooa_queue, 11455 &io->io_hdr, 11456 ooa_links); 11457 11458 ctl_free_io(io); 11459 } 11460 } 11461 ctl_check_blocked(lun); 11462 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11463 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11464 11465 printf("FAILOVER: primary lun %d\n", lun_idx); 11466 /* 11467 * Abort all commands from the other SC. We can't 11468 * send status back for them now. These should get 11469 * cleaned up when they are completed or come out 11470 * for a datamove operation. 11471 */ 11472 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11473 io != NULL; io = next_io) { 11474 next_io = (union ctl_io *)TAILQ_NEXT( 11475 &io->io_hdr, ooa_links); 11476 11477 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11478 io->io_hdr.flags |= CTL_FLAG_ABORT; 11479 } 11480 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11481 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11482 11483 printf("FAILOVER: secondary lun %d\n", lun_idx); 11484 11485 lun->flags |= CTL_LUN_PRIMARY_SC; 11486 11487 /* 11488 * We send all I/O that was sent to this controller 11489 * and redirected to the other side back with 11490 * busy status, and have the initiator retry it. 11491 * Figuring out how much data has been transferred, 11492 * etc. and picking up where we left off would be 11493 * very tricky. 11494 * 11495 * XXX KDM need to remove I/O from the blocked 11496 * queue as well! 11497 */ 11498 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11499 &lun->ooa_queue); pending_io != NULL; 11500 pending_io = next_io) { 11501 11502 next_io = (union ctl_io *)TAILQ_NEXT( 11503 &pending_io->io_hdr, ooa_links); 11504 11505 pending_io->io_hdr.flags &= 11506 ~CTL_FLAG_SENT_2OTHER_SC; 11507 11508 if (pending_io->io_hdr.flags & 11509 CTL_FLAG_IO_ACTIVE) { 11510 pending_io->io_hdr.flags |= 11511 CTL_FLAG_FAILOVER; 11512 } else { 11513 ctl_set_busy(&pending_io->scsiio); 11514 ctl_done(pending_io); 11515 } 11516 } 11517 11518 /* 11519 * Build Unit Attention 11520 */ 11521 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11522 lun->pending_ua[i] |= 11523 CTL_UA_ASYM_ACC_CHANGE; 11524 } 11525 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11526 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11527 printf("FAILOVER: secondary lun %d\n", lun_idx); 11528 /* 11529 * if the first io on the OOA is not on the RtR queue 11530 * add it. 11531 */ 11532 lun->flags |= CTL_LUN_PRIMARY_SC; 11533 11534 pending_io = (union ctl_io *)TAILQ_FIRST( 11535 &lun->ooa_queue); 11536 if (pending_io==NULL) { 11537 printf("Nothing on OOA queue\n"); 11538 continue; 11539 } 11540 11541 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11542 if ((pending_io->io_hdr.flags & 11543 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11544 pending_io->io_hdr.flags |= 11545 CTL_FLAG_IS_WAS_ON_RTR; 11546 ctl_enqueue_rtr(pending_io); 11547 } 11548#if 0 11549 else 11550 { 11551 printf("Tag 0x%04x is running\n", 11552 pending_io->scsiio.tag_num); 11553 } 11554#endif 11555 11556 next_io = (union ctl_io *)TAILQ_NEXT( 11557 &pending_io->io_hdr, ooa_links); 11558 for (pending_io=next_io; pending_io != NULL; 11559 pending_io = next_io) { 11560 pending_io->io_hdr.flags &= 11561 ~CTL_FLAG_SENT_2OTHER_SC; 11562 next_io = (union ctl_io *)TAILQ_NEXT( 11563 &pending_io->io_hdr, ooa_links); 11564 if (pending_io->io_hdr.flags & 11565 CTL_FLAG_IS_WAS_ON_RTR) { 11566#if 0 11567 printf("Tag 0x%04x is running\n", 11568 pending_io->scsiio.tag_num); 11569#endif 11570 continue; 11571 } 11572 11573 switch (ctl_check_ooa(lun, pending_io, 11574 (union ctl_io *)TAILQ_PREV( 11575 &pending_io->io_hdr, ctl_ooaq, 11576 ooa_links))) { 11577 11578 case CTL_ACTION_BLOCK: 11579 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11580 &pending_io->io_hdr, 11581 blocked_links); 11582 pending_io->io_hdr.flags |= 11583 CTL_FLAG_BLOCKED; 11584 break; 11585 case CTL_ACTION_PASS: 11586 case CTL_ACTION_SKIP: 11587 pending_io->io_hdr.flags |= 11588 CTL_FLAG_IS_WAS_ON_RTR; 11589 ctl_enqueue_rtr(pending_io); 11590 break; 11591 case CTL_ACTION_OVERLAP: 11592 ctl_set_overlapped_cmd( 11593 (struct ctl_scsiio *)pending_io); 11594 ctl_done(pending_io); 11595 break; 11596 case CTL_ACTION_OVERLAP_TAG: 11597 ctl_set_overlapped_tag( 11598 (struct ctl_scsiio *)pending_io, 11599 pending_io->scsiio.tag_num & 0xff); 11600 ctl_done(pending_io); 11601 break; 11602 case CTL_ACTION_ERROR: 11603 default: 11604 ctl_set_internal_failure( 11605 (struct ctl_scsiio *)pending_io, 11606 0, // sks_valid 11607 0); //retry count 11608 ctl_done(pending_io); 11609 break; 11610 } 11611 } 11612 11613 /* 11614 * Build Unit Attention 11615 */ 11616 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11617 lun->pending_ua[i] |= 11618 CTL_UA_ASYM_ACC_CHANGE; 11619 } 11620 } else { 11621 panic("Unhandled HA mode failover, LUN flags = %#x, " 11622 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11623 } 11624 } 11625 ctl_pause_rtr = 0; 11626 mtx_unlock(&ctl_softc->ctl_lock); 11627} 11628 11629static int 11630ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11631{ 11632 struct ctl_lun *lun; 11633 const struct ctl_cmd_entry *entry; 11634 uint32_t initidx, targ_lun; 11635 int retval; 11636 11637 retval = 0; 11638 11639 lun = NULL; 11640 11641 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11642 if ((targ_lun < CTL_MAX_LUNS) 11643 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11644 lun = ctl_softc->ctl_luns[targ_lun]; 11645 /* 11646 * If the LUN is invalid, pretend that it doesn't exist. 11647 * It will go away as soon as all pending I/O has been 11648 * completed. 11649 */ 11650 if (lun->flags & CTL_LUN_DISABLED) { 11651 lun = NULL; 11652 } else { 11653 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11654 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11655 lun->be_lun; 11656 if (lun->be_lun->lun_type == T_PROCESSOR) { 11657 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11658 } 11659 11660 /* 11661 * Every I/O goes into the OOA queue for a 11662 * particular LUN, and stays there until completion. 11663 */ 11664 mtx_lock(&lun->lun_lock); 11665 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11666 ooa_links); 11667 } 11668 } else { 11669 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11670 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11671 } 11672 11673 /* Get command entry and return error if it is unsuppotyed. */ 11674 entry = ctl_validate_command(ctsio); 11675 if (entry == NULL) { 11676 if (lun) 11677 mtx_unlock(&lun->lun_lock); 11678 return (retval); 11679 } 11680 11681 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11682 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11683 11684 /* 11685 * Check to see whether we can send this command to LUNs that don't 11686 * exist. This should pretty much only be the case for inquiry 11687 * and request sense. Further checks, below, really require having 11688 * a LUN, so we can't really check the command anymore. Just put 11689 * it on the rtr queue. 11690 */ 11691 if (lun == NULL) { 11692 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11693 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11694 ctl_enqueue_rtr((union ctl_io *)ctsio); 11695 return (retval); 11696 } 11697 11698 ctl_set_unsupported_lun(ctsio); 11699 ctl_done((union ctl_io *)ctsio); 11700 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11701 return (retval); 11702 } else { 11703 /* 11704 * Make sure we support this particular command on this LUN. 11705 * e.g., we don't support writes to the control LUN. 11706 */ 11707 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11708 mtx_unlock(&lun->lun_lock); 11709 ctl_set_invalid_opcode(ctsio); 11710 ctl_done((union ctl_io *)ctsio); 11711 return (retval); 11712 } 11713 } 11714 11715 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11716 11717#ifdef CTL_WITH_CA 11718 /* 11719 * If we've got a request sense, it'll clear the contingent 11720 * allegiance condition. Otherwise, if we have a CA condition for 11721 * this initiator, clear it, because it sent down a command other 11722 * than request sense. 11723 */ 11724 if ((ctsio->cdb[0] != REQUEST_SENSE) 11725 && (ctl_is_set(lun->have_ca, initidx))) 11726 ctl_clear_mask(lun->have_ca, initidx); 11727#endif 11728 11729 /* 11730 * If the command has this flag set, it handles its own unit 11731 * attention reporting, we shouldn't do anything. Otherwise we 11732 * check for any pending unit attentions, and send them back to the 11733 * initiator. We only do this when a command initially comes in, 11734 * not when we pull it off the blocked queue. 11735 * 11736 * According to SAM-3, section 5.3.2, the order that things get 11737 * presented back to the host is basically unit attentions caused 11738 * by some sort of reset event, busy status, reservation conflicts 11739 * or task set full, and finally any other status. 11740 * 11741 * One issue here is that some of the unit attentions we report 11742 * don't fall into the "reset" category (e.g. "reported luns data 11743 * has changed"). So reporting it here, before the reservation 11744 * check, may be technically wrong. I guess the only thing to do 11745 * would be to check for and report the reset events here, and then 11746 * check for the other unit attention types after we check for a 11747 * reservation conflict. 11748 * 11749 * XXX KDM need to fix this 11750 */ 11751 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11752 ctl_ua_type ua_type; 11753 11754 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11755 scsi_sense_data_type sense_format; 11756 11757 if (lun != NULL) 11758 sense_format = (lun->flags & 11759 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11760 SSD_TYPE_FIXED; 11761 else 11762 sense_format = SSD_TYPE_FIXED; 11763 11764 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11765 &ctsio->sense_data, sense_format); 11766 if (ua_type != CTL_UA_NONE) { 11767 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11768 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11769 CTL_AUTOSENSE; 11770 ctsio->sense_len = SSD_FULL_SIZE; 11771 mtx_unlock(&lun->lun_lock); 11772 ctl_done((union ctl_io *)ctsio); 11773 return (retval); 11774 } 11775 } 11776 } 11777 11778 11779 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11780 mtx_unlock(&lun->lun_lock); 11781 ctl_done((union ctl_io *)ctsio); 11782 return (retval); 11783 } 11784 11785 /* 11786 * XXX CHD this is where we want to send IO to other side if 11787 * this LUN is secondary on this SC. We will need to make a copy 11788 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11789 * the copy we send as FROM_OTHER. 11790 * We also need to stuff the address of the original IO so we can 11791 * find it easily. Something similar will need be done on the other 11792 * side so when we are done we can find the copy. 11793 */ 11794 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11795 union ctl_ha_msg msg_info; 11796 int isc_retval; 11797 11798 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11799 11800 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11801 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11802#if 0 11803 printf("1. ctsio %p\n", ctsio); 11804#endif 11805 msg_info.hdr.serializing_sc = NULL; 11806 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11807 msg_info.scsi.tag_num = ctsio->tag_num; 11808 msg_info.scsi.tag_type = ctsio->tag_type; 11809 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11810 11811 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11812 11813 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11814 (void *)&msg_info, sizeof(msg_info), 0)) > 11815 CTL_HA_STATUS_SUCCESS) { 11816 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11817 isc_retval); 11818 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11819 } else { 11820#if 0 11821 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11822#endif 11823 } 11824 11825 /* 11826 * XXX KDM this I/O is off the incoming queue, but hasn't 11827 * been inserted on any other queue. We may need to come 11828 * up with a holding queue while we wait for serialization 11829 * so that we have an idea of what we're waiting for from 11830 * the other side. 11831 */ 11832 mtx_unlock(&lun->lun_lock); 11833 return (retval); 11834 } 11835 11836 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11837 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11838 ctl_ooaq, ooa_links))) { 11839 case CTL_ACTION_BLOCK: 11840 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11841 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11842 blocked_links); 11843 mtx_unlock(&lun->lun_lock); 11844 return (retval); 11845 case CTL_ACTION_PASS: 11846 case CTL_ACTION_SKIP: 11847 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11848 mtx_unlock(&lun->lun_lock); 11849 ctl_enqueue_rtr((union ctl_io *)ctsio); 11850 break; 11851 case CTL_ACTION_OVERLAP: 11852 mtx_unlock(&lun->lun_lock); 11853 ctl_set_overlapped_cmd(ctsio); 11854 ctl_done((union ctl_io *)ctsio); 11855 break; 11856 case CTL_ACTION_OVERLAP_TAG: 11857 mtx_unlock(&lun->lun_lock); 11858 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11859 ctl_done((union ctl_io *)ctsio); 11860 break; 11861 case CTL_ACTION_ERROR: 11862 default: 11863 mtx_unlock(&lun->lun_lock); 11864 ctl_set_internal_failure(ctsio, 11865 /*sks_valid*/ 0, 11866 /*retry_count*/ 0); 11867 ctl_done((union ctl_io *)ctsio); 11868 break; 11869 } 11870 return (retval); 11871} 11872 11873const struct ctl_cmd_entry * 11874ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11875{ 11876 const struct ctl_cmd_entry *entry; 11877 int service_action; 11878 11879 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11880 if (sa) 11881 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11882 if (entry->flags & CTL_CMD_FLAG_SA5) { 11883 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11884 entry = &((const struct ctl_cmd_entry *) 11885 entry->execute)[service_action]; 11886 } 11887 return (entry); 11888} 11889 11890const struct ctl_cmd_entry * 11891ctl_validate_command(struct ctl_scsiio *ctsio) 11892{ 11893 const struct ctl_cmd_entry *entry; 11894 int i, sa; 11895 uint8_t diff; 11896 11897 entry = ctl_get_cmd_entry(ctsio, &sa); 11898 if (entry->execute == NULL) { 11899 if (sa) 11900 ctl_set_invalid_field(ctsio, 11901 /*sks_valid*/ 1, 11902 /*command*/ 1, 11903 /*field*/ 1, 11904 /*bit_valid*/ 1, 11905 /*bit*/ 4); 11906 else 11907 ctl_set_invalid_opcode(ctsio); 11908 ctl_done((union ctl_io *)ctsio); 11909 return (NULL); 11910 } 11911 KASSERT(entry->length > 0, 11912 ("Not defined length for command 0x%02x/0x%02x", 11913 ctsio->cdb[0], ctsio->cdb[1])); 11914 for (i = 1; i < entry->length; i++) { 11915 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11916 if (diff == 0) 11917 continue; 11918 ctl_set_invalid_field(ctsio, 11919 /*sks_valid*/ 1, 11920 /*command*/ 1, 11921 /*field*/ i, 11922 /*bit_valid*/ 1, 11923 /*bit*/ fls(diff) - 1); 11924 ctl_done((union ctl_io *)ctsio); 11925 return (NULL); 11926 } 11927 return (entry); 11928} 11929 11930static int 11931ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11932{ 11933 11934 switch (lun_type) { 11935 case T_PROCESSOR: 11936 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11937 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11938 return (0); 11939 break; 11940 case T_DIRECT: 11941 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11942 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11943 return (0); 11944 break; 11945 default: 11946 return (0); 11947 } 11948 return (1); 11949} 11950 11951static int 11952ctl_scsiio(struct ctl_scsiio *ctsio) 11953{ 11954 int retval; 11955 const struct ctl_cmd_entry *entry; 11956 11957 retval = CTL_RETVAL_COMPLETE; 11958 11959 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11960 11961 entry = ctl_get_cmd_entry(ctsio, NULL); 11962 11963 /* 11964 * If this I/O has been aborted, just send it straight to 11965 * ctl_done() without executing it. 11966 */ 11967 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11968 ctl_done((union ctl_io *)ctsio); 11969 goto bailout; 11970 } 11971 11972 /* 11973 * All the checks should have been handled by ctl_scsiio_precheck(). 11974 * We should be clear now to just execute the I/O. 11975 */ 11976 retval = entry->execute(ctsio); 11977 11978bailout: 11979 return (retval); 11980} 11981 11982/* 11983 * Since we only implement one target right now, a bus reset simply resets 11984 * our single target. 11985 */ 11986static int 11987ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11988{ 11989 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11990} 11991 11992static int 11993ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11994 ctl_ua_type ua_type) 11995{ 11996 struct ctl_lun *lun; 11997 int retval; 11998 11999 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12000 union ctl_ha_msg msg_info; 12001 12002 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12003 msg_info.hdr.nexus = io->io_hdr.nexus; 12004 if (ua_type==CTL_UA_TARG_RESET) 12005 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 12006 else 12007 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12008 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12009 msg_info.hdr.original_sc = NULL; 12010 msg_info.hdr.serializing_sc = NULL; 12011 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12012 (void *)&msg_info, sizeof(msg_info), 0)) { 12013 } 12014 } 12015 retval = 0; 12016 12017 mtx_lock(&ctl_softc->ctl_lock); 12018 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12019 retval += ctl_lun_reset(lun, io, ua_type); 12020 mtx_unlock(&ctl_softc->ctl_lock); 12021 12022 return (retval); 12023} 12024 12025/* 12026 * The LUN should always be set. The I/O is optional, and is used to 12027 * distinguish between I/Os sent by this initiator, and by other 12028 * initiators. We set unit attention for initiators other than this one. 12029 * SAM-3 is vague on this point. It does say that a unit attention should 12030 * be established for other initiators when a LUN is reset (see section 12031 * 5.7.3), but it doesn't specifically say that the unit attention should 12032 * be established for this particular initiator when a LUN is reset. Here 12033 * is the relevant text, from SAM-3 rev 8: 12034 * 12035 * 5.7.2 When a SCSI initiator port aborts its own tasks 12036 * 12037 * When a SCSI initiator port causes its own task(s) to be aborted, no 12038 * notification that the task(s) have been aborted shall be returned to 12039 * the SCSI initiator port other than the completion response for the 12040 * command or task management function action that caused the task(s) to 12041 * be aborted and notification(s) associated with related effects of the 12042 * action (e.g., a reset unit attention condition). 12043 * 12044 * XXX KDM for now, we're setting unit attention for all initiators. 12045 */ 12046static int 12047ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12048{ 12049 union ctl_io *xio; 12050#if 0 12051 uint32_t initindex; 12052#endif 12053 int i; 12054 12055 mtx_lock(&lun->lun_lock); 12056 /* 12057 * Run through the OOA queue and abort each I/O. 12058 */ 12059#if 0 12060 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12061#endif 12062 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12063 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12064 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12065 } 12066 12067 /* 12068 * This version sets unit attention for every 12069 */ 12070#if 0 12071 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12072 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12073 if (initindex == i) 12074 continue; 12075 lun->pending_ua[i] |= ua_type; 12076 } 12077#endif 12078 12079 /* 12080 * A reset (any kind, really) clears reservations established with 12081 * RESERVE/RELEASE. It does not clear reservations established 12082 * with PERSISTENT RESERVE OUT, but we don't support that at the 12083 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12084 * reservations made with the RESERVE/RELEASE commands, because 12085 * those commands are obsolete in SPC-3. 12086 */ 12087 lun->flags &= ~CTL_LUN_RESERVED; 12088 12089 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12090#ifdef CTL_WITH_CA 12091 ctl_clear_mask(lun->have_ca, i); 12092#endif 12093 lun->pending_ua[i] |= ua_type; 12094 } 12095 mtx_unlock(&lun->lun_lock); 12096 12097 return (0); 12098} 12099 12100static void 12101ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12102 int other_sc) 12103{ 12104 union ctl_io *xio; 12105 12106 mtx_assert(&lun->lun_lock, MA_OWNED); 12107 12108 /* 12109 * Run through the OOA queue and attempt to find the given I/O. 12110 * The target port, initiator ID, tag type and tag number have to 12111 * match the values that we got from the initiator. If we have an 12112 * untagged command to abort, simply abort the first untagged command 12113 * we come to. We only allow one untagged command at a time of course. 12114 */ 12115 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12116 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12117 12118 if ((targ_port == UINT32_MAX || 12119 targ_port == xio->io_hdr.nexus.targ_port) && 12120 (init_id == UINT32_MAX || 12121 init_id == xio->io_hdr.nexus.initid.id)) { 12122 if (targ_port != xio->io_hdr.nexus.targ_port || 12123 init_id != xio->io_hdr.nexus.initid.id) 12124 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12125 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12126 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12127 union ctl_ha_msg msg_info; 12128 12129 msg_info.hdr.nexus = xio->io_hdr.nexus; 12130 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12131 msg_info.task.tag_num = xio->scsiio.tag_num; 12132 msg_info.task.tag_type = xio->scsiio.tag_type; 12133 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12134 msg_info.hdr.original_sc = NULL; 12135 msg_info.hdr.serializing_sc = NULL; 12136 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12137 (void *)&msg_info, sizeof(msg_info), 0); 12138 } 12139 } 12140 } 12141} 12142 12143static int 12144ctl_abort_task_set(union ctl_io *io) 12145{ 12146 struct ctl_softc *softc = control_softc; 12147 struct ctl_lun *lun; 12148 uint32_t targ_lun; 12149 12150 /* 12151 * Look up the LUN. 12152 */ 12153 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12154 mtx_lock(&softc->ctl_lock); 12155 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12156 lun = softc->ctl_luns[targ_lun]; 12157 else { 12158 mtx_unlock(&softc->ctl_lock); 12159 return (1); 12160 } 12161 12162 mtx_lock(&lun->lun_lock); 12163 mtx_unlock(&softc->ctl_lock); 12164 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12165 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12166 io->io_hdr.nexus.initid.id, 12167 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12168 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12169 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12170 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12171 } 12172 mtx_unlock(&lun->lun_lock); 12173 return (0); 12174} 12175 12176static int 12177ctl_i_t_nexus_reset(union ctl_io *io) 12178{ 12179 struct ctl_softc *softc = control_softc; 12180 struct ctl_lun *lun; 12181 uint32_t initindex; 12182 12183 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12184 mtx_lock(&softc->ctl_lock); 12185 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12186 mtx_lock(&lun->lun_lock); 12187 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12188 io->io_hdr.nexus.initid.id, 12189 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12190#ifdef CTL_WITH_CA 12191 ctl_clear_mask(lun->have_ca, initindex); 12192#endif 12193 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12194 mtx_unlock(&lun->lun_lock); 12195 } 12196 mtx_unlock(&softc->ctl_lock); 12197 return (0); 12198} 12199 12200static int 12201ctl_abort_task(union ctl_io *io) 12202{ 12203 union ctl_io *xio; 12204 struct ctl_lun *lun; 12205 struct ctl_softc *ctl_softc; 12206#if 0 12207 struct sbuf sb; 12208 char printbuf[128]; 12209#endif 12210 int found; 12211 uint32_t targ_lun; 12212 12213 ctl_softc = control_softc; 12214 found = 0; 12215 12216 /* 12217 * Look up the LUN. 12218 */ 12219 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12220 mtx_lock(&ctl_softc->ctl_lock); 12221 if ((targ_lun < CTL_MAX_LUNS) 12222 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12223 lun = ctl_softc->ctl_luns[targ_lun]; 12224 else { 12225 mtx_unlock(&ctl_softc->ctl_lock); 12226 return (1); 12227 } 12228 12229#if 0 12230 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12231 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12232#endif 12233 12234 mtx_lock(&lun->lun_lock); 12235 mtx_unlock(&ctl_softc->ctl_lock); 12236 /* 12237 * Run through the OOA queue and attempt to find the given I/O. 12238 * The target port, initiator ID, tag type and tag number have to 12239 * match the values that we got from the initiator. If we have an 12240 * untagged command to abort, simply abort the first untagged command 12241 * we come to. We only allow one untagged command at a time of course. 12242 */ 12243#if 0 12244 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12245#endif 12246 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12247 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12248#if 0 12249 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12250 12251 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12252 lun->lun, xio->scsiio.tag_num, 12253 xio->scsiio.tag_type, 12254 (xio->io_hdr.blocked_links.tqe_prev 12255 == NULL) ? "" : " BLOCKED", 12256 (xio->io_hdr.flags & 12257 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12258 (xio->io_hdr.flags & 12259 CTL_FLAG_ABORT) ? " ABORT" : "", 12260 (xio->io_hdr.flags & 12261 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12262 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12263 sbuf_finish(&sb); 12264 printf("%s\n", sbuf_data(&sb)); 12265#endif 12266 12267 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12268 && (xio->io_hdr.nexus.initid.id == 12269 io->io_hdr.nexus.initid.id)) { 12270 /* 12271 * If the abort says that the task is untagged, the 12272 * task in the queue must be untagged. Otherwise, 12273 * we just check to see whether the tag numbers 12274 * match. This is because the QLogic firmware 12275 * doesn't pass back the tag type in an abort 12276 * request. 12277 */ 12278#if 0 12279 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12280 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12281 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12282#endif 12283 /* 12284 * XXX KDM we've got problems with FC, because it 12285 * doesn't send down a tag type with aborts. So we 12286 * can only really go by the tag number... 12287 * This may cause problems with parallel SCSI. 12288 * Need to figure that out!! 12289 */ 12290 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12291 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12292 found = 1; 12293 if ((io->io_hdr.flags & 12294 CTL_FLAG_FROM_OTHER_SC) == 0 && 12295 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12296 union ctl_ha_msg msg_info; 12297 12298 io->io_hdr.flags |= 12299 CTL_FLAG_SENT_2OTHER_SC; 12300 msg_info.hdr.nexus = io->io_hdr.nexus; 12301 msg_info.task.task_action = 12302 CTL_TASK_ABORT_TASK; 12303 msg_info.task.tag_num = 12304 io->taskio.tag_num; 12305 msg_info.task.tag_type = 12306 io->taskio.tag_type; 12307 msg_info.hdr.msg_type = 12308 CTL_MSG_MANAGE_TASKS; 12309 msg_info.hdr.original_sc = NULL; 12310 msg_info.hdr.serializing_sc = NULL; 12311#if 0 12312 printf("Sent Abort to other side\n"); 12313#endif 12314 if (CTL_HA_STATUS_SUCCESS != 12315 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12316 (void *)&msg_info, 12317 sizeof(msg_info), 0)) { 12318 } 12319 } 12320#if 0 12321 printf("ctl_abort_task: found I/O to abort\n"); 12322#endif 12323 break; 12324 } 12325 } 12326 } 12327 mtx_unlock(&lun->lun_lock); 12328 12329 if (found == 0) { 12330 /* 12331 * This isn't really an error. It's entirely possible for 12332 * the abort and command completion to cross on the wire. 12333 * This is more of an informative/diagnostic error. 12334 */ 12335#if 0 12336 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12337 "%d:%d:%d:%d tag %d type %d\n", 12338 io->io_hdr.nexus.initid.id, 12339 io->io_hdr.nexus.targ_port, 12340 io->io_hdr.nexus.targ_target.id, 12341 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12342 io->taskio.tag_type); 12343#endif 12344 } 12345 return (0); 12346} 12347 12348static void 12349ctl_run_task(union ctl_io *io) 12350{ 12351 struct ctl_softc *ctl_softc = control_softc; 12352 int retval = 1; 12353 const char *task_desc; 12354 12355 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12356 12357 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12358 ("ctl_run_task: Unextected io_type %d\n", 12359 io->io_hdr.io_type)); 12360 12361 task_desc = ctl_scsi_task_string(&io->taskio); 12362 if (task_desc != NULL) { 12363#ifdef NEEDTOPORT 12364 csevent_log(CSC_CTL | CSC_SHELF_SW | 12365 CTL_TASK_REPORT, 12366 csevent_LogType_Trace, 12367 csevent_Severity_Information, 12368 csevent_AlertLevel_Green, 12369 csevent_FRU_Firmware, 12370 csevent_FRU_Unknown, 12371 "CTL: received task: %s",task_desc); 12372#endif 12373 } else { 12374#ifdef NEEDTOPORT 12375 csevent_log(CSC_CTL | CSC_SHELF_SW | 12376 CTL_TASK_REPORT, 12377 csevent_LogType_Trace, 12378 csevent_Severity_Information, 12379 csevent_AlertLevel_Green, 12380 csevent_FRU_Firmware, 12381 csevent_FRU_Unknown, 12382 "CTL: received unknown task " 12383 "type: %d (%#x)", 12384 io->taskio.task_action, 12385 io->taskio.task_action); 12386#endif 12387 } 12388 switch (io->taskio.task_action) { 12389 case CTL_TASK_ABORT_TASK: 12390 retval = ctl_abort_task(io); 12391 break; 12392 case CTL_TASK_ABORT_TASK_SET: 12393 case CTL_TASK_CLEAR_TASK_SET: 12394 retval = ctl_abort_task_set(io); 12395 break; 12396 case CTL_TASK_CLEAR_ACA: 12397 break; 12398 case CTL_TASK_I_T_NEXUS_RESET: 12399 retval = ctl_i_t_nexus_reset(io); 12400 break; 12401 case CTL_TASK_LUN_RESET: { 12402 struct ctl_lun *lun; 12403 uint32_t targ_lun; 12404 12405 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12406 mtx_lock(&ctl_softc->ctl_lock); 12407 if ((targ_lun < CTL_MAX_LUNS) 12408 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12409 lun = ctl_softc->ctl_luns[targ_lun]; 12410 else { 12411 mtx_unlock(&ctl_softc->ctl_lock); 12412 retval = 1; 12413 break; 12414 } 12415 12416 if (!(io->io_hdr.flags & 12417 CTL_FLAG_FROM_OTHER_SC)) { 12418 union ctl_ha_msg msg_info; 12419 12420 io->io_hdr.flags |= 12421 CTL_FLAG_SENT_2OTHER_SC; 12422 msg_info.hdr.msg_type = 12423 CTL_MSG_MANAGE_TASKS; 12424 msg_info.hdr.nexus = io->io_hdr.nexus; 12425 msg_info.task.task_action = 12426 CTL_TASK_LUN_RESET; 12427 msg_info.hdr.original_sc = NULL; 12428 msg_info.hdr.serializing_sc = NULL; 12429 if (CTL_HA_STATUS_SUCCESS != 12430 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12431 (void *)&msg_info, 12432 sizeof(msg_info), 0)) { 12433 } 12434 } 12435 12436 retval = ctl_lun_reset(lun, io, 12437 CTL_UA_LUN_RESET); 12438 mtx_unlock(&ctl_softc->ctl_lock); 12439 break; 12440 } 12441 case CTL_TASK_TARGET_RESET: 12442 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12443 break; 12444 case CTL_TASK_BUS_RESET: 12445 retval = ctl_bus_reset(ctl_softc, io); 12446 break; 12447 case CTL_TASK_PORT_LOGIN: 12448 break; 12449 case CTL_TASK_PORT_LOGOUT: 12450 break; 12451 default: 12452 printf("ctl_run_task: got unknown task management event %d\n", 12453 io->taskio.task_action); 12454 break; 12455 } 12456 if (retval == 0) 12457 io->io_hdr.status = CTL_SUCCESS; 12458 else 12459 io->io_hdr.status = CTL_ERROR; 12460 ctl_done(io); 12461} 12462 12463/* 12464 * For HA operation. Handle commands that come in from the other 12465 * controller. 12466 */ 12467static void 12468ctl_handle_isc(union ctl_io *io) 12469{ 12470 int free_io; 12471 struct ctl_lun *lun; 12472 struct ctl_softc *ctl_softc; 12473 uint32_t targ_lun; 12474 12475 ctl_softc = control_softc; 12476 12477 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12478 lun = ctl_softc->ctl_luns[targ_lun]; 12479 12480 switch (io->io_hdr.msg_type) { 12481 case CTL_MSG_SERIALIZE: 12482 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12483 break; 12484 case CTL_MSG_R2R: { 12485 const struct ctl_cmd_entry *entry; 12486 12487 /* 12488 * This is only used in SER_ONLY mode. 12489 */ 12490 free_io = 0; 12491 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12492 mtx_lock(&lun->lun_lock); 12493 if (ctl_scsiio_lun_check(ctl_softc, lun, 12494 entry, (struct ctl_scsiio *)io) != 0) { 12495 mtx_unlock(&lun->lun_lock); 12496 ctl_done(io); 12497 break; 12498 } 12499 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12500 mtx_unlock(&lun->lun_lock); 12501 ctl_enqueue_rtr(io); 12502 break; 12503 } 12504 case CTL_MSG_FINISH_IO: 12505 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12506 free_io = 0; 12507 ctl_done(io); 12508 } else { 12509 free_io = 1; 12510 mtx_lock(&lun->lun_lock); 12511 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12512 ooa_links); 12513 ctl_check_blocked(lun); 12514 mtx_unlock(&lun->lun_lock); 12515 } 12516 break; 12517 case CTL_MSG_PERS_ACTION: 12518 ctl_hndl_per_res_out_on_other_sc( 12519 (union ctl_ha_msg *)&io->presio.pr_msg); 12520 free_io = 1; 12521 break; 12522 case CTL_MSG_BAD_JUJU: 12523 free_io = 0; 12524 ctl_done(io); 12525 break; 12526 case CTL_MSG_DATAMOVE: 12527 /* Only used in XFER mode */ 12528 free_io = 0; 12529 ctl_datamove_remote(io); 12530 break; 12531 case CTL_MSG_DATAMOVE_DONE: 12532 /* Only used in XFER mode */ 12533 free_io = 0; 12534 io->scsiio.be_move_done(io); 12535 break; 12536 default: 12537 free_io = 1; 12538 printf("%s: Invalid message type %d\n", 12539 __func__, io->io_hdr.msg_type); 12540 break; 12541 } 12542 if (free_io) 12543 ctl_free_io(io); 12544 12545} 12546 12547 12548/* 12549 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12550 * there is no match. 12551 */ 12552static ctl_lun_error_pattern 12553ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12554{ 12555 const struct ctl_cmd_entry *entry; 12556 ctl_lun_error_pattern filtered_pattern, pattern; 12557 12558 pattern = desc->error_pattern; 12559 12560 /* 12561 * XXX KDM we need more data passed into this function to match a 12562 * custom pattern, and we actually need to implement custom pattern 12563 * matching. 12564 */ 12565 if (pattern & CTL_LUN_PAT_CMD) 12566 return (CTL_LUN_PAT_CMD); 12567 12568 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12569 return (CTL_LUN_PAT_ANY); 12570 12571 entry = ctl_get_cmd_entry(ctsio, NULL); 12572 12573 filtered_pattern = entry->pattern & pattern; 12574 12575 /* 12576 * If the user requested specific flags in the pattern (e.g. 12577 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12578 * flags. 12579 * 12580 * If the user did not specify any flags, it doesn't matter whether 12581 * or not the command supports the flags. 12582 */ 12583 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12584 (pattern & ~CTL_LUN_PAT_MASK)) 12585 return (CTL_LUN_PAT_NONE); 12586 12587 /* 12588 * If the user asked for a range check, see if the requested LBA 12589 * range overlaps with this command's LBA range. 12590 */ 12591 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12592 uint64_t lba1; 12593 uint64_t len1; 12594 ctl_action action; 12595 int retval; 12596 12597 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12598 if (retval != 0) 12599 return (CTL_LUN_PAT_NONE); 12600 12601 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12602 desc->lba_range.len); 12603 /* 12604 * A "pass" means that the LBA ranges don't overlap, so 12605 * this doesn't match the user's range criteria. 12606 */ 12607 if (action == CTL_ACTION_PASS) 12608 return (CTL_LUN_PAT_NONE); 12609 } 12610 12611 return (filtered_pattern); 12612} 12613 12614static void 12615ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12616{ 12617 struct ctl_error_desc *desc, *desc2; 12618 12619 mtx_assert(&lun->lun_lock, MA_OWNED); 12620 12621 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12622 ctl_lun_error_pattern pattern; 12623 /* 12624 * Check to see whether this particular command matches 12625 * the pattern in the descriptor. 12626 */ 12627 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12628 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12629 continue; 12630 12631 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12632 case CTL_LUN_INJ_ABORTED: 12633 ctl_set_aborted(&io->scsiio); 12634 break; 12635 case CTL_LUN_INJ_MEDIUM_ERR: 12636 ctl_set_medium_error(&io->scsiio); 12637 break; 12638 case CTL_LUN_INJ_UA: 12639 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12640 * OCCURRED */ 12641 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12642 break; 12643 case CTL_LUN_INJ_CUSTOM: 12644 /* 12645 * We're assuming the user knows what he is doing. 12646 * Just copy the sense information without doing 12647 * checks. 12648 */ 12649 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12650 ctl_min(sizeof(desc->custom_sense), 12651 sizeof(io->scsiio.sense_data))); 12652 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12653 io->scsiio.sense_len = SSD_FULL_SIZE; 12654 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12655 break; 12656 case CTL_LUN_INJ_NONE: 12657 default: 12658 /* 12659 * If this is an error injection type we don't know 12660 * about, clear the continuous flag (if it is set) 12661 * so it will get deleted below. 12662 */ 12663 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12664 break; 12665 } 12666 /* 12667 * By default, each error injection action is a one-shot 12668 */ 12669 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12670 continue; 12671 12672 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12673 12674 free(desc, M_CTL); 12675 } 12676} 12677 12678#ifdef CTL_IO_DELAY 12679static void 12680ctl_datamove_timer_wakeup(void *arg) 12681{ 12682 union ctl_io *io; 12683 12684 io = (union ctl_io *)arg; 12685 12686 ctl_datamove(io); 12687} 12688#endif /* CTL_IO_DELAY */ 12689 12690void 12691ctl_datamove(union ctl_io *io) 12692{ 12693 void (*fe_datamove)(union ctl_io *io); 12694 12695 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12696 12697 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12698 12699#ifdef CTL_TIME_IO 12700 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12701 char str[256]; 12702 char path_str[64]; 12703 struct sbuf sb; 12704 12705 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12706 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12707 12708 sbuf_cat(&sb, path_str); 12709 switch (io->io_hdr.io_type) { 12710 case CTL_IO_SCSI: 12711 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12712 sbuf_printf(&sb, "\n"); 12713 sbuf_cat(&sb, path_str); 12714 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12715 io->scsiio.tag_num, io->scsiio.tag_type); 12716 break; 12717 case CTL_IO_TASK: 12718 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12719 "Tag Type: %d\n", io->taskio.task_action, 12720 io->taskio.tag_num, io->taskio.tag_type); 12721 break; 12722 default: 12723 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12724 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12725 break; 12726 } 12727 sbuf_cat(&sb, path_str); 12728 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12729 (intmax_t)time_uptime - io->io_hdr.start_time); 12730 sbuf_finish(&sb); 12731 printf("%s", sbuf_data(&sb)); 12732 } 12733#endif /* CTL_TIME_IO */ 12734 12735#ifdef CTL_IO_DELAY 12736 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12737 struct ctl_lun *lun; 12738 12739 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12740 12741 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12742 } else { 12743 struct ctl_lun *lun; 12744 12745 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12746 if ((lun != NULL) 12747 && (lun->delay_info.datamove_delay > 0)) { 12748 struct callout *callout; 12749 12750 callout = (struct callout *)&io->io_hdr.timer_bytes; 12751 callout_init(callout, /*mpsafe*/ 1); 12752 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12753 callout_reset(callout, 12754 lun->delay_info.datamove_delay * hz, 12755 ctl_datamove_timer_wakeup, io); 12756 if (lun->delay_info.datamove_type == 12757 CTL_DELAY_TYPE_ONESHOT) 12758 lun->delay_info.datamove_delay = 0; 12759 return; 12760 } 12761 } 12762#endif 12763 12764 /* 12765 * This command has been aborted. Set the port status, so we fail 12766 * the data move. 12767 */ 12768 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12769 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12770 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12771 io->io_hdr.nexus.targ_port, 12772 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12773 io->io_hdr.nexus.targ_lun); 12774 io->io_hdr.port_status = 31337; 12775 /* 12776 * Note that the backend, in this case, will get the 12777 * callback in its context. In other cases it may get 12778 * called in the frontend's interrupt thread context. 12779 */ 12780 io->scsiio.be_move_done(io); 12781 return; 12782 } 12783 12784 /* 12785 * If we're in XFER mode and this I/O is from the other shelf 12786 * controller, we need to send the DMA to the other side to 12787 * actually transfer the data to/from the host. In serialize only 12788 * mode the transfer happens below CTL and ctl_datamove() is only 12789 * called on the machine that originally received the I/O. 12790 */ 12791 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12792 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12793 union ctl_ha_msg msg; 12794 uint32_t sg_entries_sent; 12795 int do_sg_copy; 12796 int i; 12797 12798 memset(&msg, 0, sizeof(msg)); 12799 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12800 msg.hdr.original_sc = io->io_hdr.original_sc; 12801 msg.hdr.serializing_sc = io; 12802 msg.hdr.nexus = io->io_hdr.nexus; 12803 msg.dt.flags = io->io_hdr.flags; 12804 /* 12805 * We convert everything into a S/G list here. We can't 12806 * pass by reference, only by value between controllers. 12807 * So we can't pass a pointer to the S/G list, only as many 12808 * S/G entries as we can fit in here. If it's possible for 12809 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12810 * then we need to break this up into multiple transfers. 12811 */ 12812 if (io->scsiio.kern_sg_entries == 0) { 12813 msg.dt.kern_sg_entries = 1; 12814 /* 12815 * If this is in cached memory, flush the cache 12816 * before we send the DMA request to the other 12817 * controller. We want to do this in either the 12818 * read or the write case. The read case is 12819 * straightforward. In the write case, we want to 12820 * make sure nothing is in the local cache that 12821 * could overwrite the DMAed data. 12822 */ 12823 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12824 /* 12825 * XXX KDM use bus_dmamap_sync() here. 12826 */ 12827 } 12828 12829 /* 12830 * Convert to a physical address if this is a 12831 * virtual address. 12832 */ 12833 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12834 msg.dt.sg_list[0].addr = 12835 io->scsiio.kern_data_ptr; 12836 } else { 12837 /* 12838 * XXX KDM use busdma here! 12839 */ 12840#if 0 12841 msg.dt.sg_list[0].addr = (void *) 12842 vtophys(io->scsiio.kern_data_ptr); 12843#endif 12844 } 12845 12846 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12847 do_sg_copy = 0; 12848 } else { 12849 struct ctl_sg_entry *sgl; 12850 12851 do_sg_copy = 1; 12852 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12853 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12854 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12855 /* 12856 * XXX KDM use bus_dmamap_sync() here. 12857 */ 12858 } 12859 } 12860 12861 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12862 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12863 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12864 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12865 msg.dt.sg_sequence = 0; 12866 12867 /* 12868 * Loop until we've sent all of the S/G entries. On the 12869 * other end, we'll recompose these S/G entries into one 12870 * contiguous list before passing it to the 12871 */ 12872 for (sg_entries_sent = 0; sg_entries_sent < 12873 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12874 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12875 sizeof(msg.dt.sg_list[0])), 12876 msg.dt.kern_sg_entries - sg_entries_sent); 12877 12878 if (do_sg_copy != 0) { 12879 struct ctl_sg_entry *sgl; 12880 int j; 12881 12882 sgl = (struct ctl_sg_entry *) 12883 io->scsiio.kern_data_ptr; 12884 /* 12885 * If this is in cached memory, flush the cache 12886 * before we send the DMA request to the other 12887 * controller. We want to do this in either 12888 * the * read or the write case. The read 12889 * case is straightforward. In the write 12890 * case, we want to make sure nothing is 12891 * in the local cache that could overwrite 12892 * the DMAed data. 12893 */ 12894 12895 for (i = sg_entries_sent, j = 0; 12896 i < msg.dt.cur_sg_entries; i++, j++) { 12897 if ((io->io_hdr.flags & 12898 CTL_FLAG_NO_DATASYNC) == 0) { 12899 /* 12900 * XXX KDM use bus_dmamap_sync() 12901 */ 12902 } 12903 if ((io->io_hdr.flags & 12904 CTL_FLAG_BUS_ADDR) == 0) { 12905 /* 12906 * XXX KDM use busdma. 12907 */ 12908#if 0 12909 msg.dt.sg_list[j].addr =(void *) 12910 vtophys(sgl[i].addr); 12911#endif 12912 } else { 12913 msg.dt.sg_list[j].addr = 12914 sgl[i].addr; 12915 } 12916 msg.dt.sg_list[j].len = sgl[i].len; 12917 } 12918 } 12919 12920 sg_entries_sent += msg.dt.cur_sg_entries; 12921 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12922 msg.dt.sg_last = 1; 12923 else 12924 msg.dt.sg_last = 0; 12925 12926 /* 12927 * XXX KDM drop and reacquire the lock here? 12928 */ 12929 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12930 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12931 /* 12932 * XXX do something here. 12933 */ 12934 } 12935 12936 msg.dt.sent_sg_entries = sg_entries_sent; 12937 } 12938 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12939 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12940 ctl_failover_io(io, /*have_lock*/ 0); 12941 12942 } else { 12943 12944 /* 12945 * Lookup the fe_datamove() function for this particular 12946 * front end. 12947 */ 12948 fe_datamove = 12949 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12950 12951 fe_datamove(io); 12952 } 12953} 12954 12955static void 12956ctl_send_datamove_done(union ctl_io *io, int have_lock) 12957{ 12958 union ctl_ha_msg msg; 12959 int isc_status; 12960 12961 memset(&msg, 0, sizeof(msg)); 12962 12963 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12964 msg.hdr.original_sc = io; 12965 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12966 msg.hdr.nexus = io->io_hdr.nexus; 12967 msg.hdr.status = io->io_hdr.status; 12968 msg.scsi.tag_num = io->scsiio.tag_num; 12969 msg.scsi.tag_type = io->scsiio.tag_type; 12970 msg.scsi.scsi_status = io->scsiio.scsi_status; 12971 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12972 sizeof(io->scsiio.sense_data)); 12973 msg.scsi.sense_len = io->scsiio.sense_len; 12974 msg.scsi.sense_residual = io->scsiio.sense_residual; 12975 msg.scsi.fetd_status = io->io_hdr.port_status; 12976 msg.scsi.residual = io->scsiio.residual; 12977 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12978 12979 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12980 ctl_failover_io(io, /*have_lock*/ have_lock); 12981 return; 12982 } 12983 12984 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12985 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12986 /* XXX do something if this fails */ 12987 } 12988 12989} 12990 12991/* 12992 * The DMA to the remote side is done, now we need to tell the other side 12993 * we're done so it can continue with its data movement. 12994 */ 12995static void 12996ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12997{ 12998 union ctl_io *io; 12999 13000 io = rq->context; 13001 13002 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13003 printf("%s: ISC DMA write failed with error %d", __func__, 13004 rq->ret); 13005 ctl_set_internal_failure(&io->scsiio, 13006 /*sks_valid*/ 1, 13007 /*retry_count*/ rq->ret); 13008 } 13009 13010 ctl_dt_req_free(rq); 13011 13012 /* 13013 * In this case, we had to malloc the memory locally. Free it. 13014 */ 13015 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13016 int i; 13017 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13018 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13019 } 13020 /* 13021 * The data is in local and remote memory, so now we need to send 13022 * status (good or back) back to the other side. 13023 */ 13024 ctl_send_datamove_done(io, /*have_lock*/ 0); 13025} 13026 13027/* 13028 * We've moved the data from the host/controller into local memory. Now we 13029 * need to push it over to the remote controller's memory. 13030 */ 13031static int 13032ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13033{ 13034 int retval; 13035 13036 retval = 0; 13037 13038 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13039 ctl_datamove_remote_write_cb); 13040 13041 return (retval); 13042} 13043 13044static void 13045ctl_datamove_remote_write(union ctl_io *io) 13046{ 13047 int retval; 13048 void (*fe_datamove)(union ctl_io *io); 13049 13050 /* 13051 * - Get the data from the host/HBA into local memory. 13052 * - DMA memory from the local controller to the remote controller. 13053 * - Send status back to the remote controller. 13054 */ 13055 13056 retval = ctl_datamove_remote_sgl_setup(io); 13057 if (retval != 0) 13058 return; 13059 13060 /* Switch the pointer over so the FETD knows what to do */ 13061 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13062 13063 /* 13064 * Use a custom move done callback, since we need to send completion 13065 * back to the other controller, not to the backend on this side. 13066 */ 13067 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13068 13069 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13070 13071 fe_datamove(io); 13072 13073 return; 13074 13075} 13076 13077static int 13078ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13079{ 13080#if 0 13081 char str[256]; 13082 char path_str[64]; 13083 struct sbuf sb; 13084#endif 13085 13086 /* 13087 * In this case, we had to malloc the memory locally. Free it. 13088 */ 13089 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13090 int i; 13091 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13092 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13093 } 13094 13095#if 0 13096 scsi_path_string(io, path_str, sizeof(path_str)); 13097 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13098 sbuf_cat(&sb, path_str); 13099 scsi_command_string(&io->scsiio, NULL, &sb); 13100 sbuf_printf(&sb, "\n"); 13101 sbuf_cat(&sb, path_str); 13102 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13103 io->scsiio.tag_num, io->scsiio.tag_type); 13104 sbuf_cat(&sb, path_str); 13105 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13106 io->io_hdr.flags, io->io_hdr.status); 13107 sbuf_finish(&sb); 13108 printk("%s", sbuf_data(&sb)); 13109#endif 13110 13111 13112 /* 13113 * The read is done, now we need to send status (good or bad) back 13114 * to the other side. 13115 */ 13116 ctl_send_datamove_done(io, /*have_lock*/ 0); 13117 13118 return (0); 13119} 13120 13121static void 13122ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13123{ 13124 union ctl_io *io; 13125 void (*fe_datamove)(union ctl_io *io); 13126 13127 io = rq->context; 13128 13129 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13130 printf("%s: ISC DMA read failed with error %d", __func__, 13131 rq->ret); 13132 ctl_set_internal_failure(&io->scsiio, 13133 /*sks_valid*/ 1, 13134 /*retry_count*/ rq->ret); 13135 } 13136 13137 ctl_dt_req_free(rq); 13138 13139 /* Switch the pointer over so the FETD knows what to do */ 13140 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13141 13142 /* 13143 * Use a custom move done callback, since we need to send completion 13144 * back to the other controller, not to the backend on this side. 13145 */ 13146 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13147 13148 /* XXX KDM add checks like the ones in ctl_datamove? */ 13149 13150 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13151 13152 fe_datamove(io); 13153} 13154 13155static int 13156ctl_datamove_remote_sgl_setup(union ctl_io *io) 13157{ 13158 struct ctl_sg_entry *local_sglist, *remote_sglist; 13159 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13160 struct ctl_softc *softc; 13161 int retval; 13162 int i; 13163 13164 retval = 0; 13165 softc = control_softc; 13166 13167 local_sglist = io->io_hdr.local_sglist; 13168 local_dma_sglist = io->io_hdr.local_dma_sglist; 13169 remote_sglist = io->io_hdr.remote_sglist; 13170 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13171 13172 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13173 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13174 local_sglist[i].len = remote_sglist[i].len; 13175 13176 /* 13177 * XXX Detect the situation where the RS-level I/O 13178 * redirector on the other side has already read the 13179 * data off of the AOR RS on this side, and 13180 * transferred it to remote (mirror) memory on the 13181 * other side. Since we already have the data in 13182 * memory here, we just need to use it. 13183 * 13184 * XXX KDM this can probably be removed once we 13185 * get the cache device code in and take the 13186 * current AOR implementation out. 13187 */ 13188#ifdef NEEDTOPORT 13189 if ((remote_sglist[i].addr >= 13190 (void *)vtophys(softc->mirr->addr)) 13191 && (remote_sglist[i].addr < 13192 ((void *)vtophys(softc->mirr->addr) + 13193 CacheMirrorOffset))) { 13194 local_sglist[i].addr = remote_sglist[i].addr - 13195 CacheMirrorOffset; 13196 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13197 CTL_FLAG_DATA_IN) 13198 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13199 } else { 13200 local_sglist[i].addr = remote_sglist[i].addr + 13201 CacheMirrorOffset; 13202 } 13203#endif 13204#if 0 13205 printf("%s: local %p, remote %p, len %d\n", 13206 __func__, local_sglist[i].addr, 13207 remote_sglist[i].addr, local_sglist[i].len); 13208#endif 13209 } 13210 } else { 13211 uint32_t len_to_go; 13212 13213 /* 13214 * In this case, we don't have automatically allocated 13215 * memory for this I/O on this controller. This typically 13216 * happens with internal CTL I/O -- e.g. inquiry, mode 13217 * sense, etc. Anything coming from RAIDCore will have 13218 * a mirror area available. 13219 */ 13220 len_to_go = io->scsiio.kern_data_len; 13221 13222 /* 13223 * Clear the no datasync flag, we have to use malloced 13224 * buffers. 13225 */ 13226 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13227 13228 /* 13229 * The difficult thing here is that the size of the various 13230 * S/G segments may be different than the size from the 13231 * remote controller. That'll make it harder when DMAing 13232 * the data back to the other side. 13233 */ 13234 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13235 sizeof(io->io_hdr.remote_sglist[0])) && 13236 (len_to_go > 0); i++) { 13237 local_sglist[i].len = ctl_min(len_to_go, 131072); 13238 CTL_SIZE_8B(local_dma_sglist[i].len, 13239 local_sglist[i].len); 13240 local_sglist[i].addr = 13241 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13242 13243 local_dma_sglist[i].addr = local_sglist[i].addr; 13244 13245 if (local_sglist[i].addr == NULL) { 13246 int j; 13247 13248 printf("malloc failed for %zd bytes!", 13249 local_dma_sglist[i].len); 13250 for (j = 0; j < i; j++) { 13251 free(local_sglist[j].addr, M_CTL); 13252 } 13253 ctl_set_internal_failure(&io->scsiio, 13254 /*sks_valid*/ 1, 13255 /*retry_count*/ 4857); 13256 retval = 1; 13257 goto bailout_error; 13258 13259 } 13260 /* XXX KDM do we need a sync here? */ 13261 13262 len_to_go -= local_sglist[i].len; 13263 } 13264 /* 13265 * Reset the number of S/G entries accordingly. The 13266 * original number of S/G entries is available in 13267 * rem_sg_entries. 13268 */ 13269 io->scsiio.kern_sg_entries = i; 13270 13271#if 0 13272 printf("%s: kern_sg_entries = %d\n", __func__, 13273 io->scsiio.kern_sg_entries); 13274 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13275 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13276 local_sglist[i].addr, local_sglist[i].len, 13277 local_dma_sglist[i].len); 13278#endif 13279 } 13280 13281 13282 return (retval); 13283 13284bailout_error: 13285 13286 ctl_send_datamove_done(io, /*have_lock*/ 0); 13287 13288 return (retval); 13289} 13290 13291static int 13292ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13293 ctl_ha_dt_cb callback) 13294{ 13295 struct ctl_ha_dt_req *rq; 13296 struct ctl_sg_entry *remote_sglist, *local_sglist; 13297 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13298 uint32_t local_used, remote_used, total_used; 13299 int retval; 13300 int i, j; 13301 13302 retval = 0; 13303 13304 rq = ctl_dt_req_alloc(); 13305 13306 /* 13307 * If we failed to allocate the request, and if the DMA didn't fail 13308 * anyway, set busy status. This is just a resource allocation 13309 * failure. 13310 */ 13311 if ((rq == NULL) 13312 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13313 ctl_set_busy(&io->scsiio); 13314 13315 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13316 13317 if (rq != NULL) 13318 ctl_dt_req_free(rq); 13319 13320 /* 13321 * The data move failed. We need to return status back 13322 * to the other controller. No point in trying to DMA 13323 * data to the remote controller. 13324 */ 13325 13326 ctl_send_datamove_done(io, /*have_lock*/ 0); 13327 13328 retval = 1; 13329 13330 goto bailout; 13331 } 13332 13333 local_sglist = io->io_hdr.local_sglist; 13334 local_dma_sglist = io->io_hdr.local_dma_sglist; 13335 remote_sglist = io->io_hdr.remote_sglist; 13336 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13337 local_used = 0; 13338 remote_used = 0; 13339 total_used = 0; 13340 13341 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13342 rq->ret = CTL_HA_STATUS_SUCCESS; 13343 rq->context = io; 13344 callback(rq); 13345 goto bailout; 13346 } 13347 13348 /* 13349 * Pull/push the data over the wire from/to the other controller. 13350 * This takes into account the possibility that the local and 13351 * remote sglists may not be identical in terms of the size of 13352 * the elements and the number of elements. 13353 * 13354 * One fundamental assumption here is that the length allocated for 13355 * both the local and remote sglists is identical. Otherwise, we've 13356 * essentially got a coding error of some sort. 13357 */ 13358 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13359 int isc_ret; 13360 uint32_t cur_len, dma_length; 13361 uint8_t *tmp_ptr; 13362 13363 rq->id = CTL_HA_DATA_CTL; 13364 rq->command = command; 13365 rq->context = io; 13366 13367 /* 13368 * Both pointers should be aligned. But it is possible 13369 * that the allocation length is not. They should both 13370 * also have enough slack left over at the end, though, 13371 * to round up to the next 8 byte boundary. 13372 */ 13373 cur_len = ctl_min(local_sglist[i].len - local_used, 13374 remote_sglist[j].len - remote_used); 13375 13376 /* 13377 * In this case, we have a size issue and need to decrease 13378 * the size, except in the case where we actually have less 13379 * than 8 bytes left. In that case, we need to increase 13380 * the DMA length to get the last bit. 13381 */ 13382 if ((cur_len & 0x7) != 0) { 13383 if (cur_len > 0x7) { 13384 cur_len = cur_len - (cur_len & 0x7); 13385 dma_length = cur_len; 13386 } else { 13387 CTL_SIZE_8B(dma_length, cur_len); 13388 } 13389 13390 } else 13391 dma_length = cur_len; 13392 13393 /* 13394 * If we had to allocate memory for this I/O, instead of using 13395 * the non-cached mirror memory, we'll need to flush the cache 13396 * before trying to DMA to the other controller. 13397 * 13398 * We could end up doing this multiple times for the same 13399 * segment if we have a larger local segment than remote 13400 * segment. That shouldn't be an issue. 13401 */ 13402 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13403 /* 13404 * XXX KDM use bus_dmamap_sync() here. 13405 */ 13406 } 13407 13408 rq->size = dma_length; 13409 13410 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13411 tmp_ptr += local_used; 13412 13413 /* Use physical addresses when talking to ISC hardware */ 13414 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13415 /* XXX KDM use busdma */ 13416#if 0 13417 rq->local = vtophys(tmp_ptr); 13418#endif 13419 } else 13420 rq->local = tmp_ptr; 13421 13422 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13423 tmp_ptr += remote_used; 13424 rq->remote = tmp_ptr; 13425 13426 rq->callback = NULL; 13427 13428 local_used += cur_len; 13429 if (local_used >= local_sglist[i].len) { 13430 i++; 13431 local_used = 0; 13432 } 13433 13434 remote_used += cur_len; 13435 if (remote_used >= remote_sglist[j].len) { 13436 j++; 13437 remote_used = 0; 13438 } 13439 total_used += cur_len; 13440 13441 if (total_used >= io->scsiio.kern_data_len) 13442 rq->callback = callback; 13443 13444 if ((rq->size & 0x7) != 0) { 13445 printf("%s: warning: size %d is not on 8b boundary\n", 13446 __func__, rq->size); 13447 } 13448 if (((uintptr_t)rq->local & 0x7) != 0) { 13449 printf("%s: warning: local %p not on 8b boundary\n", 13450 __func__, rq->local); 13451 } 13452 if (((uintptr_t)rq->remote & 0x7) != 0) { 13453 printf("%s: warning: remote %p not on 8b boundary\n", 13454 __func__, rq->local); 13455 } 13456#if 0 13457 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13458 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13459 rq->local, rq->remote, rq->size); 13460#endif 13461 13462 isc_ret = ctl_dt_single(rq); 13463 if (isc_ret == CTL_HA_STATUS_WAIT) 13464 continue; 13465 13466 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13467 rq->ret = CTL_HA_STATUS_SUCCESS; 13468 } else { 13469 rq->ret = isc_ret; 13470 } 13471 callback(rq); 13472 goto bailout; 13473 } 13474 13475bailout: 13476 return (retval); 13477 13478} 13479 13480static void 13481ctl_datamove_remote_read(union ctl_io *io) 13482{ 13483 int retval; 13484 int i; 13485 13486 /* 13487 * This will send an error to the other controller in the case of a 13488 * failure. 13489 */ 13490 retval = ctl_datamove_remote_sgl_setup(io); 13491 if (retval != 0) 13492 return; 13493 13494 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13495 ctl_datamove_remote_read_cb); 13496 if ((retval != 0) 13497 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13498 /* 13499 * Make sure we free memory if there was an error.. The 13500 * ctl_datamove_remote_xfer() function will send the 13501 * datamove done message, or call the callback with an 13502 * error if there is a problem. 13503 */ 13504 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13505 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13506 } 13507 13508 return; 13509} 13510 13511/* 13512 * Process a datamove request from the other controller. This is used for 13513 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13514 * first. Once that is complete, the data gets DMAed into the remote 13515 * controller's memory. For reads, we DMA from the remote controller's 13516 * memory into our memory first, and then move it out to the FETD. 13517 */ 13518static void 13519ctl_datamove_remote(union ctl_io *io) 13520{ 13521 struct ctl_softc *softc; 13522 13523 softc = control_softc; 13524 13525 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13526 13527 /* 13528 * Note that we look for an aborted I/O here, but don't do some of 13529 * the other checks that ctl_datamove() normally does. 13530 * We don't need to run the datamove delay code, since that should 13531 * have been done if need be on the other controller. 13532 */ 13533 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13534 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13535 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13536 io->io_hdr.nexus.targ_port, 13537 io->io_hdr.nexus.targ_target.id, 13538 io->io_hdr.nexus.targ_lun); 13539 io->io_hdr.port_status = 31338; 13540 ctl_send_datamove_done(io, /*have_lock*/ 0); 13541 return; 13542 } 13543 13544 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13545 ctl_datamove_remote_write(io); 13546 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13547 ctl_datamove_remote_read(io); 13548 } else { 13549 union ctl_ha_msg msg; 13550 struct scsi_sense_data *sense; 13551 uint8_t sks[3]; 13552 int retry_count; 13553 13554 memset(&msg, 0, sizeof(msg)); 13555 13556 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13557 msg.hdr.status = CTL_SCSI_ERROR; 13558 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13559 13560 retry_count = 4243; 13561 13562 sense = &msg.scsi.sense_data; 13563 sks[0] = SSD_SCS_VALID; 13564 sks[1] = (retry_count >> 8) & 0xff; 13565 sks[2] = retry_count & 0xff; 13566 13567 /* "Internal target failure" */ 13568 scsi_set_sense_data(sense, 13569 /*sense_format*/ SSD_TYPE_NONE, 13570 /*current_error*/ 1, 13571 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13572 /*asc*/ 0x44, 13573 /*ascq*/ 0x00, 13574 /*type*/ SSD_ELEM_SKS, 13575 /*size*/ sizeof(sks), 13576 /*data*/ sks, 13577 SSD_ELEM_NONE); 13578 13579 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13580 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13581 ctl_failover_io(io, /*have_lock*/ 1); 13582 return; 13583 } 13584 13585 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13586 CTL_HA_STATUS_SUCCESS) { 13587 /* XXX KDM what to do if this fails? */ 13588 } 13589 return; 13590 } 13591 13592} 13593 13594static int 13595ctl_process_done(union ctl_io *io) 13596{ 13597 struct ctl_lun *lun; 13598 struct ctl_softc *ctl_softc; 13599 void (*fe_done)(union ctl_io *io); 13600 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13601 13602 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13603 13604 fe_done = 13605 control_softc->ctl_ports[targ_port]->fe_done; 13606 13607#ifdef CTL_TIME_IO 13608 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13609 char str[256]; 13610 char path_str[64]; 13611 struct sbuf sb; 13612 13613 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13614 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13615 13616 sbuf_cat(&sb, path_str); 13617 switch (io->io_hdr.io_type) { 13618 case CTL_IO_SCSI: 13619 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13620 sbuf_printf(&sb, "\n"); 13621 sbuf_cat(&sb, path_str); 13622 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13623 io->scsiio.tag_num, io->scsiio.tag_type); 13624 break; 13625 case CTL_IO_TASK: 13626 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13627 "Tag Type: %d\n", io->taskio.task_action, 13628 io->taskio.tag_num, io->taskio.tag_type); 13629 break; 13630 default: 13631 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13632 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13633 break; 13634 } 13635 sbuf_cat(&sb, path_str); 13636 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13637 (intmax_t)time_uptime - io->io_hdr.start_time); 13638 sbuf_finish(&sb); 13639 printf("%s", sbuf_data(&sb)); 13640 } 13641#endif /* CTL_TIME_IO */ 13642 13643 switch (io->io_hdr.io_type) { 13644 case CTL_IO_SCSI: 13645 break; 13646 case CTL_IO_TASK: 13647 if (bootverbose || verbose > 0) 13648 ctl_io_error_print(io, NULL); 13649 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13650 ctl_free_io(io); 13651 else 13652 fe_done(io); 13653 return (CTL_RETVAL_COMPLETE); 13654 break; 13655 default: 13656 printf("ctl_process_done: invalid io type %d\n", 13657 io->io_hdr.io_type); 13658 panic("ctl_process_done: invalid io type %d\n", 13659 io->io_hdr.io_type); 13660 break; /* NOTREACHED */ 13661 } 13662 13663 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13664 if (lun == NULL) { 13665 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13666 io->io_hdr.nexus.targ_mapped_lun)); 13667 fe_done(io); 13668 goto bailout; 13669 } 13670 ctl_softc = lun->ctl_softc; 13671 13672 mtx_lock(&lun->lun_lock); 13673 13674 /* 13675 * Check to see if we have any errors to inject here. We only 13676 * inject errors for commands that don't already have errors set. 13677 */ 13678 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13679 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13680 ctl_inject_error(lun, io); 13681 13682 /* 13683 * XXX KDM how do we treat commands that aren't completed 13684 * successfully? 13685 * 13686 * XXX KDM should we also track I/O latency? 13687 */ 13688 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13689 io->io_hdr.io_type == CTL_IO_SCSI) { 13690#ifdef CTL_TIME_IO 13691 struct bintime cur_bt; 13692#endif 13693 int type; 13694 13695 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13696 CTL_FLAG_DATA_IN) 13697 type = CTL_STATS_READ; 13698 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13699 CTL_FLAG_DATA_OUT) 13700 type = CTL_STATS_WRITE; 13701 else 13702 type = CTL_STATS_NO_IO; 13703 13704 lun->stats.ports[targ_port].bytes[type] += 13705 io->scsiio.kern_total_len; 13706 lun->stats.ports[targ_port].operations[type]++; 13707#ifdef CTL_TIME_IO 13708 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13709 &io->io_hdr.dma_bt); 13710 lun->stats.ports[targ_port].num_dmas[type] += 13711 io->io_hdr.num_dmas; 13712 getbintime(&cur_bt); 13713 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13714 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13715#endif 13716 } 13717 13718 /* 13719 * Remove this from the OOA queue. 13720 */ 13721 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13722 13723 /* 13724 * Run through the blocked queue on this LUN and see if anything 13725 * has become unblocked, now that this transaction is done. 13726 */ 13727 ctl_check_blocked(lun); 13728 13729 /* 13730 * If the LUN has been invalidated, free it if there is nothing 13731 * left on its OOA queue. 13732 */ 13733 if ((lun->flags & CTL_LUN_INVALID) 13734 && TAILQ_EMPTY(&lun->ooa_queue)) { 13735 mtx_unlock(&lun->lun_lock); 13736 mtx_lock(&ctl_softc->ctl_lock); 13737 ctl_free_lun(lun); 13738 mtx_unlock(&ctl_softc->ctl_lock); 13739 } else 13740 mtx_unlock(&lun->lun_lock); 13741 13742 /* 13743 * If this command has been aborted, make sure we set the status 13744 * properly. The FETD is responsible for freeing the I/O and doing 13745 * whatever it needs to do to clean up its state. 13746 */ 13747 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13748 ctl_set_task_aborted(&io->scsiio); 13749 13750 /* 13751 * We print out status for every task management command. For SCSI 13752 * commands, we filter out any unit attention errors; they happen 13753 * on every boot, and would clutter up the log. Note: task 13754 * management commands aren't printed here, they are printed above, 13755 * since they should never even make it down here. 13756 */ 13757 switch (io->io_hdr.io_type) { 13758 case CTL_IO_SCSI: { 13759 int error_code, sense_key, asc, ascq; 13760 13761 sense_key = 0; 13762 13763 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13764 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13765 /* 13766 * Since this is just for printing, no need to 13767 * show errors here. 13768 */ 13769 scsi_extract_sense_len(&io->scsiio.sense_data, 13770 io->scsiio.sense_len, 13771 &error_code, 13772 &sense_key, 13773 &asc, 13774 &ascq, 13775 /*show_errors*/ 0); 13776 } 13777 13778 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13779 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13780 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13781 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13782 13783 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13784 ctl_softc->skipped_prints++; 13785 } else { 13786 uint32_t skipped_prints; 13787 13788 skipped_prints = ctl_softc->skipped_prints; 13789 13790 ctl_softc->skipped_prints = 0; 13791 ctl_softc->last_print_jiffies = time_uptime; 13792 13793 if (skipped_prints > 0) { 13794#ifdef NEEDTOPORT 13795 csevent_log(CSC_CTL | CSC_SHELF_SW | 13796 CTL_ERROR_REPORT, 13797 csevent_LogType_Trace, 13798 csevent_Severity_Information, 13799 csevent_AlertLevel_Green, 13800 csevent_FRU_Firmware, 13801 csevent_FRU_Unknown, 13802 "High CTL error volume, %d prints " 13803 "skipped", skipped_prints); 13804#endif 13805 } 13806 if (bootverbose || verbose > 0) 13807 ctl_io_error_print(io, NULL); 13808 } 13809 } 13810 break; 13811 } 13812 case CTL_IO_TASK: 13813 if (bootverbose || verbose > 0) 13814 ctl_io_error_print(io, NULL); 13815 break; 13816 default: 13817 break; 13818 } 13819 13820 /* 13821 * Tell the FETD or the other shelf controller we're done with this 13822 * command. Note that only SCSI commands get to this point. Task 13823 * management commands are completed above. 13824 * 13825 * We only send status to the other controller if we're in XFER 13826 * mode. In SER_ONLY mode, the I/O is done on the controller that 13827 * received the I/O (from CTL's perspective), and so the status is 13828 * generated there. 13829 * 13830 * XXX KDM if we hold the lock here, we could cause a deadlock 13831 * if the frontend comes back in in this context to queue 13832 * something. 13833 */ 13834 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13835 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13836 union ctl_ha_msg msg; 13837 13838 memset(&msg, 0, sizeof(msg)); 13839 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13840 msg.hdr.original_sc = io->io_hdr.original_sc; 13841 msg.hdr.nexus = io->io_hdr.nexus; 13842 msg.hdr.status = io->io_hdr.status; 13843 msg.scsi.scsi_status = io->scsiio.scsi_status; 13844 msg.scsi.tag_num = io->scsiio.tag_num; 13845 msg.scsi.tag_type = io->scsiio.tag_type; 13846 msg.scsi.sense_len = io->scsiio.sense_len; 13847 msg.scsi.sense_residual = io->scsiio.sense_residual; 13848 msg.scsi.residual = io->scsiio.residual; 13849 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13850 sizeof(io->scsiio.sense_data)); 13851 /* 13852 * We copy this whether or not this is an I/O-related 13853 * command. Otherwise, we'd have to go and check to see 13854 * whether it's a read/write command, and it really isn't 13855 * worth it. 13856 */ 13857 memcpy(&msg.scsi.lbalen, 13858 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13859 sizeof(msg.scsi.lbalen)); 13860 13861 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13862 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13863 /* XXX do something here */ 13864 } 13865 13866 ctl_free_io(io); 13867 } else 13868 fe_done(io); 13869 13870bailout: 13871 13872 return (CTL_RETVAL_COMPLETE); 13873} 13874 13875#ifdef CTL_WITH_CA 13876/* 13877 * Front end should call this if it doesn't do autosense. When the request 13878 * sense comes back in from the initiator, we'll dequeue this and send it. 13879 */ 13880int 13881ctl_queue_sense(union ctl_io *io) 13882{ 13883 struct ctl_lun *lun; 13884 struct ctl_softc *ctl_softc; 13885 uint32_t initidx, targ_lun; 13886 13887 ctl_softc = control_softc; 13888 13889 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13890 13891 /* 13892 * LUN lookup will likely move to the ctl_work_thread() once we 13893 * have our new queueing infrastructure (that doesn't put things on 13894 * a per-LUN queue initially). That is so that we can handle 13895 * things like an INQUIRY to a LUN that we don't have enabled. We 13896 * can't deal with that right now. 13897 */ 13898 mtx_lock(&ctl_softc->ctl_lock); 13899 13900 /* 13901 * If we don't have a LUN for this, just toss the sense 13902 * information. 13903 */ 13904 targ_lun = io->io_hdr.nexus.targ_lun; 13905 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13906 if ((targ_lun < CTL_MAX_LUNS) 13907 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13908 lun = ctl_softc->ctl_luns[targ_lun]; 13909 else 13910 goto bailout; 13911 13912 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13913 13914 mtx_lock(&lun->lun_lock); 13915 /* 13916 * Already have CA set for this LUN...toss the sense information. 13917 */ 13918 if (ctl_is_set(lun->have_ca, initidx)) { 13919 mtx_unlock(&lun->lun_lock); 13920 goto bailout; 13921 } 13922 13923 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13924 ctl_min(sizeof(lun->pending_sense[initidx]), 13925 sizeof(io->scsiio.sense_data))); 13926 ctl_set_mask(lun->have_ca, initidx); 13927 mtx_unlock(&lun->lun_lock); 13928 13929bailout: 13930 mtx_unlock(&ctl_softc->ctl_lock); 13931 13932 ctl_free_io(io); 13933 13934 return (CTL_RETVAL_COMPLETE); 13935} 13936#endif 13937 13938/* 13939 * Primary command inlet from frontend ports. All SCSI and task I/O 13940 * requests must go through this function. 13941 */ 13942int 13943ctl_queue(union ctl_io *io) 13944{ 13945 struct ctl_softc *ctl_softc; 13946 13947 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13948 13949 ctl_softc = control_softc; 13950 13951#ifdef CTL_TIME_IO 13952 io->io_hdr.start_time = time_uptime; 13953 getbintime(&io->io_hdr.start_bt); 13954#endif /* CTL_TIME_IO */ 13955 13956 /* Map FE-specific LUN ID into global one. */ 13957 io->io_hdr.nexus.targ_mapped_lun = 13958 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13959 13960 switch (io->io_hdr.io_type) { 13961 case CTL_IO_SCSI: 13962 case CTL_IO_TASK: 13963 ctl_enqueue_incoming(io); 13964 break; 13965 default: 13966 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13967 return (EINVAL); 13968 } 13969 13970 return (CTL_RETVAL_COMPLETE); 13971} 13972 13973#ifdef CTL_IO_DELAY 13974static void 13975ctl_done_timer_wakeup(void *arg) 13976{ 13977 union ctl_io *io; 13978 13979 io = (union ctl_io *)arg; 13980 ctl_done(io); 13981} 13982#endif /* CTL_IO_DELAY */ 13983 13984void 13985ctl_done(union ctl_io *io) 13986{ 13987 struct ctl_softc *ctl_softc; 13988 13989 ctl_softc = control_softc; 13990 13991 /* 13992 * Enable this to catch duplicate completion issues. 13993 */ 13994#if 0 13995 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13996 printf("%s: type %d msg %d cdb %x iptl: " 13997 "%d:%d:%d:%d tag 0x%04x " 13998 "flag %#x status %x\n", 13999 __func__, 14000 io->io_hdr.io_type, 14001 io->io_hdr.msg_type, 14002 io->scsiio.cdb[0], 14003 io->io_hdr.nexus.initid.id, 14004 io->io_hdr.nexus.targ_port, 14005 io->io_hdr.nexus.targ_target.id, 14006 io->io_hdr.nexus.targ_lun, 14007 (io->io_hdr.io_type == 14008 CTL_IO_TASK) ? 14009 io->taskio.tag_num : 14010 io->scsiio.tag_num, 14011 io->io_hdr.flags, 14012 io->io_hdr.status); 14013 } else 14014 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14015#endif 14016 14017 /* 14018 * This is an internal copy of an I/O, and should not go through 14019 * the normal done processing logic. 14020 */ 14021 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14022 return; 14023 14024 /* 14025 * We need to send a msg to the serializing shelf to finish the IO 14026 * as well. We don't send a finish message to the other shelf if 14027 * this is a task management command. Task management commands 14028 * aren't serialized in the OOA queue, but rather just executed on 14029 * both shelf controllers for commands that originated on that 14030 * controller. 14031 */ 14032 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14033 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14034 union ctl_ha_msg msg_io; 14035 14036 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14037 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14038 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14039 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14040 } 14041 /* continue on to finish IO */ 14042 } 14043#ifdef CTL_IO_DELAY 14044 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14045 struct ctl_lun *lun; 14046 14047 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14048 14049 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14050 } else { 14051 struct ctl_lun *lun; 14052 14053 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14054 14055 if ((lun != NULL) 14056 && (lun->delay_info.done_delay > 0)) { 14057 struct callout *callout; 14058 14059 callout = (struct callout *)&io->io_hdr.timer_bytes; 14060 callout_init(callout, /*mpsafe*/ 1); 14061 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14062 callout_reset(callout, 14063 lun->delay_info.done_delay * hz, 14064 ctl_done_timer_wakeup, io); 14065 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14066 lun->delay_info.done_delay = 0; 14067 return; 14068 } 14069 } 14070#endif /* CTL_IO_DELAY */ 14071 14072 ctl_enqueue_done(io); 14073} 14074 14075int 14076ctl_isc(struct ctl_scsiio *ctsio) 14077{ 14078 struct ctl_lun *lun; 14079 int retval; 14080 14081 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14082 14083 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14084 14085 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14086 14087 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14088 14089 return (retval); 14090} 14091 14092 14093static void 14094ctl_work_thread(void *arg) 14095{ 14096 struct ctl_thread *thr = (struct ctl_thread *)arg; 14097 struct ctl_softc *softc = thr->ctl_softc; 14098 union ctl_io *io; 14099 int retval; 14100 14101 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14102 14103 for (;;) { 14104 retval = 0; 14105 14106 /* 14107 * We handle the queues in this order: 14108 * - ISC 14109 * - done queue (to free up resources, unblock other commands) 14110 * - RtR queue 14111 * - incoming queue 14112 * 14113 * If those queues are empty, we break out of the loop and 14114 * go to sleep. 14115 */ 14116 mtx_lock(&thr->queue_lock); 14117 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14118 if (io != NULL) { 14119 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14120 mtx_unlock(&thr->queue_lock); 14121 ctl_handle_isc(io); 14122 continue; 14123 } 14124 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14125 if (io != NULL) { 14126 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14127 /* clear any blocked commands, call fe_done */ 14128 mtx_unlock(&thr->queue_lock); 14129 retval = ctl_process_done(io); 14130 continue; 14131 } 14132 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14133 if (io != NULL) { 14134 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14135 mtx_unlock(&thr->queue_lock); 14136 if (io->io_hdr.io_type == CTL_IO_TASK) 14137 ctl_run_task(io); 14138 else 14139 ctl_scsiio_precheck(softc, &io->scsiio); 14140 continue; 14141 } 14142 if (!ctl_pause_rtr) { 14143 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14144 if (io != NULL) { 14145 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14146 mtx_unlock(&thr->queue_lock); 14147 retval = ctl_scsiio(&io->scsiio); 14148 if (retval != CTL_RETVAL_COMPLETE) 14149 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14150 continue; 14151 } 14152 } 14153 14154 /* Sleep until we have something to do. */ 14155 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14156 } 14157} 14158 14159static void 14160ctl_lun_thread(void *arg) 14161{ 14162 struct ctl_softc *softc = (struct ctl_softc *)arg; 14163 struct ctl_be_lun *be_lun; 14164 int retval; 14165 14166 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14167 14168 for (;;) { 14169 retval = 0; 14170 mtx_lock(&softc->ctl_lock); 14171 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14172 if (be_lun != NULL) { 14173 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14174 mtx_unlock(&softc->ctl_lock); 14175 ctl_create_lun(be_lun); 14176 continue; 14177 } 14178 14179 /* Sleep until we have something to do. */ 14180 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14181 PDROP | PRIBIO, "-", 0); 14182 } 14183} 14184 14185static void 14186ctl_enqueue_incoming(union ctl_io *io) 14187{ 14188 struct ctl_softc *softc = control_softc; 14189 struct ctl_thread *thr; 14190 u_int idx; 14191 14192 idx = (io->io_hdr.nexus.targ_port * 127 + 14193 io->io_hdr.nexus.initid.id) % worker_threads; 14194 thr = &softc->threads[idx]; 14195 mtx_lock(&thr->queue_lock); 14196 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14197 mtx_unlock(&thr->queue_lock); 14198 wakeup(thr); 14199} 14200 14201static void 14202ctl_enqueue_rtr(union ctl_io *io) 14203{ 14204 struct ctl_softc *softc = control_softc; 14205 struct ctl_thread *thr; 14206 14207 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14208 mtx_lock(&thr->queue_lock); 14209 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14210 mtx_unlock(&thr->queue_lock); 14211 wakeup(thr); 14212} 14213 14214static void 14215ctl_enqueue_done(union ctl_io *io) 14216{ 14217 struct ctl_softc *softc = control_softc; 14218 struct ctl_thread *thr; 14219 14220 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14221 mtx_lock(&thr->queue_lock); 14222 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14223 mtx_unlock(&thr->queue_lock); 14224 wakeup(thr); 14225} 14226 14227static void 14228ctl_enqueue_isc(union ctl_io *io) 14229{ 14230 struct ctl_softc *softc = control_softc; 14231 struct ctl_thread *thr; 14232 14233 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14234 mtx_lock(&thr->queue_lock); 14235 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14236 mtx_unlock(&thr->queue_lock); 14237 wakeup(thr); 14238} 14239 14240/* Initialization and failover */ 14241 14242void 14243ctl_init_isc_msg(void) 14244{ 14245 printf("CTL: Still calling this thing\n"); 14246} 14247 14248/* 14249 * Init component 14250 * Initializes component into configuration defined by bootMode 14251 * (see hasc-sv.c) 14252 * returns hasc_Status: 14253 * OK 14254 * ERROR - fatal error 14255 */ 14256static ctl_ha_comp_status 14257ctl_isc_init(struct ctl_ha_component *c) 14258{ 14259 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14260 14261 c->status = ret; 14262 return ret; 14263} 14264 14265/* Start component 14266 * Starts component in state requested. If component starts successfully, 14267 * it must set its own state to the requestrd state 14268 * When requested state is HASC_STATE_HA, the component may refine it 14269 * by adding _SLAVE or _MASTER flags. 14270 * Currently allowed state transitions are: 14271 * UNKNOWN->HA - initial startup 14272 * UNKNOWN->SINGLE - initial startup when no parter detected 14273 * HA->SINGLE - failover 14274 * returns ctl_ha_comp_status: 14275 * OK - component successfully started in requested state 14276 * FAILED - could not start the requested state, failover may 14277 * be possible 14278 * ERROR - fatal error detected, no future startup possible 14279 */ 14280static ctl_ha_comp_status 14281ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14282{ 14283 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14284 14285 printf("%s: go\n", __func__); 14286 14287 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14288 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14289 ctl_is_single = 0; 14290 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14291 != CTL_HA_STATUS_SUCCESS) { 14292 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14293 ret = CTL_HA_COMP_STATUS_ERROR; 14294 } 14295 } else if (CTL_HA_STATE_IS_HA(c->state) 14296 && CTL_HA_STATE_IS_SINGLE(state)){ 14297 // HA->SINGLE transition 14298 ctl_failover(); 14299 ctl_is_single = 1; 14300 } else { 14301 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14302 c->state, state); 14303 ret = CTL_HA_COMP_STATUS_ERROR; 14304 } 14305 if (CTL_HA_STATE_IS_SINGLE(state)) 14306 ctl_is_single = 1; 14307 14308 c->state = state; 14309 c->status = ret; 14310 return ret; 14311} 14312 14313/* 14314 * Quiesce component 14315 * The component must clear any error conditions (set status to OK) and 14316 * prepare itself to another Start call 14317 * returns ctl_ha_comp_status: 14318 * OK 14319 * ERROR 14320 */ 14321static ctl_ha_comp_status 14322ctl_isc_quiesce(struct ctl_ha_component *c) 14323{ 14324 int ret = CTL_HA_COMP_STATUS_OK; 14325 14326 ctl_pause_rtr = 1; 14327 c->status = ret; 14328 return ret; 14329} 14330 14331struct ctl_ha_component ctl_ha_component_ctlisc = 14332{ 14333 .name = "CTL ISC", 14334 .state = CTL_HA_STATE_UNKNOWN, 14335 .init = ctl_isc_init, 14336 .start = ctl_isc_start, 14337 .quiesce = ctl_isc_quiesce 14338}; 14339 14340/* 14341 * vim: ts=8 14342 */ 14343