ctl.c revision 272640
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 272640 2014-10-06 13:28:17Z 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.flags & CTL_FLAG_ABORT) == 0 && 5286 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5287 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5288 io->scsiio.io_cont(io); 5289 return; 5290 } 5291 /* 5292 * Since a configuration write can be done for commands that actually 5293 * have data allocated, like write buffer, and commands that have 5294 * no data, like start/stop unit, we need to check here. 5295 */ 5296 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5297 buf = io->scsiio.kern_data_ptr; 5298 else 5299 buf = NULL; 5300 ctl_done(io); 5301 if (buf) 5302 free(buf, M_CTL); 5303} 5304 5305/* 5306 * SCSI release command. 5307 */ 5308int 5309ctl_scsi_release(struct ctl_scsiio *ctsio) 5310{ 5311 int length, longid, thirdparty_id, resv_id; 5312 struct ctl_softc *ctl_softc; 5313 struct ctl_lun *lun; 5314 uint32_t residx; 5315 5316 length = 0; 5317 resv_id = 0; 5318 5319 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5320 5321 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5322 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5323 ctl_softc = control_softc; 5324 5325 switch (ctsio->cdb[0]) { 5326 case RELEASE_10: { 5327 struct scsi_release_10 *cdb; 5328 5329 cdb = (struct scsi_release_10 *)ctsio->cdb; 5330 5331 if (cdb->byte2 & SR10_LONGID) 5332 longid = 1; 5333 else 5334 thirdparty_id = cdb->thirdparty_id; 5335 5336 resv_id = cdb->resv_id; 5337 length = scsi_2btoul(cdb->length); 5338 break; 5339 } 5340 } 5341 5342 5343 /* 5344 * XXX KDM right now, we only support LUN reservation. We don't 5345 * support 3rd party reservations, or extent reservations, which 5346 * might actually need the parameter list. If we've gotten this 5347 * far, we've got a LUN reservation. Anything else got kicked out 5348 * above. So, according to SPC, ignore the length. 5349 */ 5350 length = 0; 5351 5352 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5353 && (length > 0)) { 5354 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5355 ctsio->kern_data_len = length; 5356 ctsio->kern_total_len = length; 5357 ctsio->kern_data_resid = 0; 5358 ctsio->kern_rel_offset = 0; 5359 ctsio->kern_sg_entries = 0; 5360 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5361 ctsio->be_move_done = ctl_config_move_done; 5362 ctl_datamove((union ctl_io *)ctsio); 5363 5364 return (CTL_RETVAL_COMPLETE); 5365 } 5366 5367 if (length > 0) 5368 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5369 5370 mtx_lock(&lun->lun_lock); 5371 5372 /* 5373 * According to SPC, it is not an error for an intiator to attempt 5374 * to release a reservation on a LUN that isn't reserved, or that 5375 * is reserved by another initiator. The reservation can only be 5376 * released, though, by the initiator who made it or by one of 5377 * several reset type events. 5378 */ 5379 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5380 lun->flags &= ~CTL_LUN_RESERVED; 5381 5382 mtx_unlock(&lun->lun_lock); 5383 5384 ctsio->scsi_status = SCSI_STATUS_OK; 5385 ctsio->io_hdr.status = CTL_SUCCESS; 5386 5387 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5388 free(ctsio->kern_data_ptr, M_CTL); 5389 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5390 } 5391 5392 ctl_done((union ctl_io *)ctsio); 5393 return (CTL_RETVAL_COMPLETE); 5394} 5395 5396int 5397ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5398{ 5399 int extent, thirdparty, longid; 5400 int resv_id, length; 5401 uint64_t thirdparty_id; 5402 struct ctl_softc *ctl_softc; 5403 struct ctl_lun *lun; 5404 uint32_t residx; 5405 5406 extent = 0; 5407 thirdparty = 0; 5408 longid = 0; 5409 resv_id = 0; 5410 length = 0; 5411 thirdparty_id = 0; 5412 5413 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5414 5415 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5416 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5417 ctl_softc = control_softc; 5418 5419 switch (ctsio->cdb[0]) { 5420 case RESERVE_10: { 5421 struct scsi_reserve_10 *cdb; 5422 5423 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5424 5425 if (cdb->byte2 & SR10_LONGID) 5426 longid = 1; 5427 else 5428 thirdparty_id = cdb->thirdparty_id; 5429 5430 resv_id = cdb->resv_id; 5431 length = scsi_2btoul(cdb->length); 5432 break; 5433 } 5434 } 5435 5436 /* 5437 * XXX KDM right now, we only support LUN reservation. We don't 5438 * support 3rd party reservations, or extent reservations, which 5439 * might actually need the parameter list. If we've gotten this 5440 * far, we've got a LUN reservation. Anything else got kicked out 5441 * above. So, according to SPC, ignore the length. 5442 */ 5443 length = 0; 5444 5445 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5446 && (length > 0)) { 5447 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5448 ctsio->kern_data_len = length; 5449 ctsio->kern_total_len = length; 5450 ctsio->kern_data_resid = 0; 5451 ctsio->kern_rel_offset = 0; 5452 ctsio->kern_sg_entries = 0; 5453 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5454 ctsio->be_move_done = ctl_config_move_done; 5455 ctl_datamove((union ctl_io *)ctsio); 5456 5457 return (CTL_RETVAL_COMPLETE); 5458 } 5459 5460 if (length > 0) 5461 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5462 5463 mtx_lock(&lun->lun_lock); 5464 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5465 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5466 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5467 goto bailout; 5468 } 5469 5470 lun->flags |= CTL_LUN_RESERVED; 5471 lun->res_idx = residx; 5472 5473 ctsio->scsi_status = SCSI_STATUS_OK; 5474 ctsio->io_hdr.status = CTL_SUCCESS; 5475 5476bailout: 5477 mtx_unlock(&lun->lun_lock); 5478 5479 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5480 free(ctsio->kern_data_ptr, M_CTL); 5481 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5482 } 5483 5484 ctl_done((union ctl_io *)ctsio); 5485 return (CTL_RETVAL_COMPLETE); 5486} 5487 5488int 5489ctl_start_stop(struct ctl_scsiio *ctsio) 5490{ 5491 struct scsi_start_stop_unit *cdb; 5492 struct ctl_lun *lun; 5493 struct ctl_softc *ctl_softc; 5494 int retval; 5495 5496 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5497 5498 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5499 ctl_softc = control_softc; 5500 retval = 0; 5501 5502 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5503 5504 /* 5505 * XXX KDM 5506 * We don't support the immediate bit on a stop unit. In order to 5507 * do that, we would need to code up a way to know that a stop is 5508 * pending, and hold off any new commands until it completes, one 5509 * way or another. Then we could accept or reject those commands 5510 * depending on its status. We would almost need to do the reverse 5511 * of what we do below for an immediate start -- return the copy of 5512 * the ctl_io to the FETD with status to send to the host (and to 5513 * free the copy!) and then free the original I/O once the stop 5514 * actually completes. That way, the OOA queue mechanism can work 5515 * to block commands that shouldn't proceed. Another alternative 5516 * would be to put the copy in the queue in place of the original, 5517 * and return the original back to the caller. That could be 5518 * slightly safer.. 5519 */ 5520 if ((cdb->byte2 & SSS_IMMED) 5521 && ((cdb->how & SSS_START) == 0)) { 5522 ctl_set_invalid_field(ctsio, 5523 /*sks_valid*/ 1, 5524 /*command*/ 1, 5525 /*field*/ 1, 5526 /*bit_valid*/ 1, 5527 /*bit*/ 0); 5528 ctl_done((union ctl_io *)ctsio); 5529 return (CTL_RETVAL_COMPLETE); 5530 } 5531 5532 if ((lun->flags & CTL_LUN_PR_RESERVED) 5533 && ((cdb->how & SSS_START)==0)) { 5534 uint32_t residx; 5535 5536 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5537 if (!lun->per_res[residx].registered 5538 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5539 5540 ctl_set_reservation_conflict(ctsio); 5541 ctl_done((union ctl_io *)ctsio); 5542 return (CTL_RETVAL_COMPLETE); 5543 } 5544 } 5545 5546 /* 5547 * If there is no backend on this device, we can't start or stop 5548 * it. In theory we shouldn't get any start/stop commands in the 5549 * first place at this level if the LUN doesn't have a backend. 5550 * That should get stopped by the command decode code. 5551 */ 5552 if (lun->backend == NULL) { 5553 ctl_set_invalid_opcode(ctsio); 5554 ctl_done((union ctl_io *)ctsio); 5555 return (CTL_RETVAL_COMPLETE); 5556 } 5557 5558 /* 5559 * XXX KDM Copan-specific offline behavior. 5560 * Figure out a reasonable way to port this? 5561 */ 5562#ifdef NEEDTOPORT 5563 mtx_lock(&lun->lun_lock); 5564 5565 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5566 && (lun->flags & CTL_LUN_OFFLINE)) { 5567 /* 5568 * If the LUN is offline, and the on/offline bit isn't set, 5569 * reject the start or stop. Otherwise, let it through. 5570 */ 5571 mtx_unlock(&lun->lun_lock); 5572 ctl_set_lun_not_ready(ctsio); 5573 ctl_done((union ctl_io *)ctsio); 5574 } else { 5575 mtx_unlock(&lun->lun_lock); 5576#endif /* NEEDTOPORT */ 5577 /* 5578 * This could be a start or a stop when we're online, 5579 * or a stop/offline or start/online. A start or stop when 5580 * we're offline is covered in the case above. 5581 */ 5582 /* 5583 * In the non-immediate case, we send the request to 5584 * the backend and return status to the user when 5585 * it is done. 5586 * 5587 * In the immediate case, we allocate a new ctl_io 5588 * to hold a copy of the request, and send that to 5589 * the backend. We then set good status on the 5590 * user's request and return it immediately. 5591 */ 5592 if (cdb->byte2 & SSS_IMMED) { 5593 union ctl_io *new_io; 5594 5595 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5596 if (new_io == NULL) { 5597 ctl_set_busy(ctsio); 5598 ctl_done((union ctl_io *)ctsio); 5599 } else { 5600 ctl_copy_io((union ctl_io *)ctsio, 5601 new_io); 5602 retval = lun->backend->config_write(new_io); 5603 ctl_set_success(ctsio); 5604 ctl_done((union ctl_io *)ctsio); 5605 } 5606 } else { 5607 retval = lun->backend->config_write( 5608 (union ctl_io *)ctsio); 5609 } 5610#ifdef NEEDTOPORT 5611 } 5612#endif 5613 return (retval); 5614} 5615 5616/* 5617 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5618 * we don't really do anything with the LBA and length fields if the user 5619 * passes them in. Instead we'll just flush out the cache for the entire 5620 * LUN. 5621 */ 5622int 5623ctl_sync_cache(struct ctl_scsiio *ctsio) 5624{ 5625 struct ctl_lun *lun; 5626 struct ctl_softc *ctl_softc; 5627 uint64_t starting_lba; 5628 uint32_t block_count; 5629 int retval; 5630 5631 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5632 5633 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5634 ctl_softc = control_softc; 5635 retval = 0; 5636 5637 switch (ctsio->cdb[0]) { 5638 case SYNCHRONIZE_CACHE: { 5639 struct scsi_sync_cache *cdb; 5640 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5641 5642 starting_lba = scsi_4btoul(cdb->begin_lba); 5643 block_count = scsi_2btoul(cdb->lb_count); 5644 break; 5645 } 5646 case SYNCHRONIZE_CACHE_16: { 5647 struct scsi_sync_cache_16 *cdb; 5648 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5649 5650 starting_lba = scsi_8btou64(cdb->begin_lba); 5651 block_count = scsi_4btoul(cdb->lb_count); 5652 break; 5653 } 5654 default: 5655 ctl_set_invalid_opcode(ctsio); 5656 ctl_done((union ctl_io *)ctsio); 5657 goto bailout; 5658 break; /* NOTREACHED */ 5659 } 5660 5661 /* 5662 * We check the LBA and length, but don't do anything with them. 5663 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5664 * get flushed. This check will just help satisfy anyone who wants 5665 * to see an error for an out of range LBA. 5666 */ 5667 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5668 ctl_set_lba_out_of_range(ctsio); 5669 ctl_done((union ctl_io *)ctsio); 5670 goto bailout; 5671 } 5672 5673 /* 5674 * If this LUN has no backend, we can't flush the cache anyway. 5675 */ 5676 if (lun->backend == NULL) { 5677 ctl_set_invalid_opcode(ctsio); 5678 ctl_done((union ctl_io *)ctsio); 5679 goto bailout; 5680 } 5681 5682 /* 5683 * Check to see whether we're configured to send the SYNCHRONIZE 5684 * CACHE command directly to the back end. 5685 */ 5686 mtx_lock(&lun->lun_lock); 5687 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5688 && (++(lun->sync_count) >= lun->sync_interval)) { 5689 lun->sync_count = 0; 5690 mtx_unlock(&lun->lun_lock); 5691 retval = lun->backend->config_write((union ctl_io *)ctsio); 5692 } else { 5693 mtx_unlock(&lun->lun_lock); 5694 ctl_set_success(ctsio); 5695 ctl_done((union ctl_io *)ctsio); 5696 } 5697 5698bailout: 5699 5700 return (retval); 5701} 5702 5703int 5704ctl_format(struct ctl_scsiio *ctsio) 5705{ 5706 struct scsi_format *cdb; 5707 struct ctl_lun *lun; 5708 struct ctl_softc *ctl_softc; 5709 int length, defect_list_len; 5710 5711 CTL_DEBUG_PRINT(("ctl_format\n")); 5712 5713 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5714 ctl_softc = control_softc; 5715 5716 cdb = (struct scsi_format *)ctsio->cdb; 5717 5718 length = 0; 5719 if (cdb->byte2 & SF_FMTDATA) { 5720 if (cdb->byte2 & SF_LONGLIST) 5721 length = sizeof(struct scsi_format_header_long); 5722 else 5723 length = sizeof(struct scsi_format_header_short); 5724 } 5725 5726 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5727 && (length > 0)) { 5728 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5729 ctsio->kern_data_len = length; 5730 ctsio->kern_total_len = length; 5731 ctsio->kern_data_resid = 0; 5732 ctsio->kern_rel_offset = 0; 5733 ctsio->kern_sg_entries = 0; 5734 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5735 ctsio->be_move_done = ctl_config_move_done; 5736 ctl_datamove((union ctl_io *)ctsio); 5737 5738 return (CTL_RETVAL_COMPLETE); 5739 } 5740 5741 defect_list_len = 0; 5742 5743 if (cdb->byte2 & SF_FMTDATA) { 5744 if (cdb->byte2 & SF_LONGLIST) { 5745 struct scsi_format_header_long *header; 5746 5747 header = (struct scsi_format_header_long *) 5748 ctsio->kern_data_ptr; 5749 5750 defect_list_len = scsi_4btoul(header->defect_list_len); 5751 if (defect_list_len != 0) { 5752 ctl_set_invalid_field(ctsio, 5753 /*sks_valid*/ 1, 5754 /*command*/ 0, 5755 /*field*/ 2, 5756 /*bit_valid*/ 0, 5757 /*bit*/ 0); 5758 goto bailout; 5759 } 5760 } else { 5761 struct scsi_format_header_short *header; 5762 5763 header = (struct scsi_format_header_short *) 5764 ctsio->kern_data_ptr; 5765 5766 defect_list_len = scsi_2btoul(header->defect_list_len); 5767 if (defect_list_len != 0) { 5768 ctl_set_invalid_field(ctsio, 5769 /*sks_valid*/ 1, 5770 /*command*/ 0, 5771 /*field*/ 2, 5772 /*bit_valid*/ 0, 5773 /*bit*/ 0); 5774 goto bailout; 5775 } 5776 } 5777 } 5778 5779 /* 5780 * The format command will clear out the "Medium format corrupted" 5781 * status if set by the configuration code. That status is really 5782 * just a way to notify the host that we have lost the media, and 5783 * get them to issue a command that will basically make them think 5784 * they're blowing away the media. 5785 */ 5786 mtx_lock(&lun->lun_lock); 5787 lun->flags &= ~CTL_LUN_INOPERABLE; 5788 mtx_unlock(&lun->lun_lock); 5789 5790 ctsio->scsi_status = SCSI_STATUS_OK; 5791 ctsio->io_hdr.status = CTL_SUCCESS; 5792bailout: 5793 5794 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5795 free(ctsio->kern_data_ptr, M_CTL); 5796 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5797 } 5798 5799 ctl_done((union ctl_io *)ctsio); 5800 return (CTL_RETVAL_COMPLETE); 5801} 5802 5803int 5804ctl_read_buffer(struct ctl_scsiio *ctsio) 5805{ 5806 struct scsi_read_buffer *cdb; 5807 struct ctl_lun *lun; 5808 int buffer_offset, len; 5809 static uint8_t descr[4]; 5810 static uint8_t echo_descr[4] = { 0 }; 5811 5812 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5813 5814 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5815 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5816 5817 if (lun->flags & CTL_LUN_PR_RESERVED) { 5818 uint32_t residx; 5819 5820 /* 5821 * XXX KDM need a lock here. 5822 */ 5823 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5824 if ((lun->res_type == SPR_TYPE_EX_AC 5825 && residx != lun->pr_res_idx) 5826 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5827 || lun->res_type == SPR_TYPE_EX_AC_AR) 5828 && !lun->per_res[residx].registered)) { 5829 ctl_set_reservation_conflict(ctsio); 5830 ctl_done((union ctl_io *)ctsio); 5831 return (CTL_RETVAL_COMPLETE); 5832 } 5833 } 5834 5835 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5836 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5837 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5838 ctl_set_invalid_field(ctsio, 5839 /*sks_valid*/ 1, 5840 /*command*/ 1, 5841 /*field*/ 1, 5842 /*bit_valid*/ 1, 5843 /*bit*/ 4); 5844 ctl_done((union ctl_io *)ctsio); 5845 return (CTL_RETVAL_COMPLETE); 5846 } 5847 5848 len = scsi_3btoul(cdb->length); 5849 buffer_offset = scsi_3btoul(cdb->offset); 5850 5851 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5852 ctl_set_invalid_field(ctsio, 5853 /*sks_valid*/ 1, 5854 /*command*/ 1, 5855 /*field*/ 6, 5856 /*bit_valid*/ 0, 5857 /*bit*/ 0); 5858 ctl_done((union ctl_io *)ctsio); 5859 return (CTL_RETVAL_COMPLETE); 5860 } 5861 5862 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5863 descr[0] = 0; 5864 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5865 ctsio->kern_data_ptr = descr; 5866 len = min(len, sizeof(descr)); 5867 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5868 ctsio->kern_data_ptr = echo_descr; 5869 len = min(len, sizeof(echo_descr)); 5870 } else 5871 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5872 ctsio->kern_data_len = len; 5873 ctsio->kern_total_len = len; 5874 ctsio->kern_data_resid = 0; 5875 ctsio->kern_rel_offset = 0; 5876 ctsio->kern_sg_entries = 0; 5877 ctsio->be_move_done = ctl_config_move_done; 5878 ctl_datamove((union ctl_io *)ctsio); 5879 5880 return (CTL_RETVAL_COMPLETE); 5881} 5882 5883int 5884ctl_write_buffer(struct ctl_scsiio *ctsio) 5885{ 5886 struct scsi_write_buffer *cdb; 5887 struct ctl_lun *lun; 5888 int buffer_offset, len; 5889 5890 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5891 5892 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5893 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5894 5895 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5896 ctl_set_invalid_field(ctsio, 5897 /*sks_valid*/ 1, 5898 /*command*/ 1, 5899 /*field*/ 1, 5900 /*bit_valid*/ 1, 5901 /*bit*/ 4); 5902 ctl_done((union ctl_io *)ctsio); 5903 return (CTL_RETVAL_COMPLETE); 5904 } 5905 5906 len = scsi_3btoul(cdb->length); 5907 buffer_offset = scsi_3btoul(cdb->offset); 5908 5909 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5910 ctl_set_invalid_field(ctsio, 5911 /*sks_valid*/ 1, 5912 /*command*/ 1, 5913 /*field*/ 6, 5914 /*bit_valid*/ 0, 5915 /*bit*/ 0); 5916 ctl_done((union ctl_io *)ctsio); 5917 return (CTL_RETVAL_COMPLETE); 5918 } 5919 5920 /* 5921 * If we've got a kernel request that hasn't been malloced yet, 5922 * malloc it and tell the caller the data buffer is here. 5923 */ 5924 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5925 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5926 ctsio->kern_data_len = len; 5927 ctsio->kern_total_len = len; 5928 ctsio->kern_data_resid = 0; 5929 ctsio->kern_rel_offset = 0; 5930 ctsio->kern_sg_entries = 0; 5931 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5932 ctsio->be_move_done = ctl_config_move_done; 5933 ctl_datamove((union ctl_io *)ctsio); 5934 5935 return (CTL_RETVAL_COMPLETE); 5936 } 5937 5938 ctl_done((union ctl_io *)ctsio); 5939 5940 return (CTL_RETVAL_COMPLETE); 5941} 5942 5943int 5944ctl_write_same(struct ctl_scsiio *ctsio) 5945{ 5946 struct ctl_lun *lun; 5947 struct ctl_lba_len_flags *lbalen; 5948 uint64_t lba; 5949 uint32_t num_blocks; 5950 int len, retval; 5951 uint8_t byte2; 5952 5953 retval = CTL_RETVAL_COMPLETE; 5954 5955 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5956 5957 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5958 5959 switch (ctsio->cdb[0]) { 5960 case WRITE_SAME_10: { 5961 struct scsi_write_same_10 *cdb; 5962 5963 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5964 5965 lba = scsi_4btoul(cdb->addr); 5966 num_blocks = scsi_2btoul(cdb->length); 5967 byte2 = cdb->byte2; 5968 break; 5969 } 5970 case WRITE_SAME_16: { 5971 struct scsi_write_same_16 *cdb; 5972 5973 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5974 5975 lba = scsi_8btou64(cdb->addr); 5976 num_blocks = scsi_4btoul(cdb->length); 5977 byte2 = cdb->byte2; 5978 break; 5979 } 5980 default: 5981 /* 5982 * We got a command we don't support. This shouldn't 5983 * happen, commands should be filtered out above us. 5984 */ 5985 ctl_set_invalid_opcode(ctsio); 5986 ctl_done((union ctl_io *)ctsio); 5987 5988 return (CTL_RETVAL_COMPLETE); 5989 break; /* NOTREACHED */ 5990 } 5991 5992 /* NDOB flag can be used only together with UNMAP */ 5993 if ((byte2 & (SWS_NDOB | SWS_UNMAP)) == SWS_NDOB) { 5994 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5995 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5996 ctl_done((union ctl_io *)ctsio); 5997 return (CTL_RETVAL_COMPLETE); 5998 } 5999 6000 /* 6001 * The first check is to make sure we're in bounds, the second 6002 * check is to catch wrap-around problems. If the lba + num blocks 6003 * is less than the lba, then we've wrapped around and the block 6004 * range is invalid anyway. 6005 */ 6006 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6007 || ((lba + num_blocks) < lba)) { 6008 ctl_set_lba_out_of_range(ctsio); 6009 ctl_done((union ctl_io *)ctsio); 6010 return (CTL_RETVAL_COMPLETE); 6011 } 6012 6013 /* Zero number of blocks means "to the last logical block" */ 6014 if (num_blocks == 0) { 6015 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6016 ctl_set_invalid_field(ctsio, 6017 /*sks_valid*/ 0, 6018 /*command*/ 1, 6019 /*field*/ 0, 6020 /*bit_valid*/ 0, 6021 /*bit*/ 0); 6022 ctl_done((union ctl_io *)ctsio); 6023 return (CTL_RETVAL_COMPLETE); 6024 } 6025 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6026 } 6027 6028 len = lun->be_lun->blocksize; 6029 6030 /* 6031 * If we've got a kernel request that hasn't been malloced yet, 6032 * malloc it and tell the caller the data buffer is here. 6033 */ 6034 if ((byte2 & SWS_NDOB) == 0 && 6035 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6036 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6037 ctsio->kern_data_len = len; 6038 ctsio->kern_total_len = len; 6039 ctsio->kern_data_resid = 0; 6040 ctsio->kern_rel_offset = 0; 6041 ctsio->kern_sg_entries = 0; 6042 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6043 ctsio->be_move_done = ctl_config_move_done; 6044 ctl_datamove((union ctl_io *)ctsio); 6045 6046 return (CTL_RETVAL_COMPLETE); 6047 } 6048 6049 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6050 lbalen->lba = lba; 6051 lbalen->len = num_blocks; 6052 lbalen->flags = byte2; 6053 retval = lun->backend->config_write((union ctl_io *)ctsio); 6054 6055 return (retval); 6056} 6057 6058int 6059ctl_unmap(struct ctl_scsiio *ctsio) 6060{ 6061 struct ctl_lun *lun; 6062 struct scsi_unmap *cdb; 6063 struct ctl_ptr_len_flags *ptrlen; 6064 struct scsi_unmap_header *hdr; 6065 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6066 uint64_t lba; 6067 uint32_t num_blocks; 6068 int len, retval; 6069 uint8_t byte2; 6070 6071 retval = CTL_RETVAL_COMPLETE; 6072 6073 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6074 6075 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6076 cdb = (struct scsi_unmap *)ctsio->cdb; 6077 6078 len = scsi_2btoul(cdb->length); 6079 byte2 = cdb->byte2; 6080 6081 /* 6082 * If we've got a kernel request that hasn't been malloced yet, 6083 * malloc it and tell the caller the data buffer is here. 6084 */ 6085 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6086 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6087 ctsio->kern_data_len = len; 6088 ctsio->kern_total_len = len; 6089 ctsio->kern_data_resid = 0; 6090 ctsio->kern_rel_offset = 0; 6091 ctsio->kern_sg_entries = 0; 6092 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6093 ctsio->be_move_done = ctl_config_move_done; 6094 ctl_datamove((union ctl_io *)ctsio); 6095 6096 return (CTL_RETVAL_COMPLETE); 6097 } 6098 6099 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6100 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6101 if (len < sizeof (*hdr) || 6102 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6103 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6104 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6105 ctl_set_invalid_field(ctsio, 6106 /*sks_valid*/ 0, 6107 /*command*/ 0, 6108 /*field*/ 0, 6109 /*bit_valid*/ 0, 6110 /*bit*/ 0); 6111 ctl_done((union ctl_io *)ctsio); 6112 return (CTL_RETVAL_COMPLETE); 6113 } 6114 len = scsi_2btoul(hdr->desc_length); 6115 buf = (struct scsi_unmap_desc *)(hdr + 1); 6116 end = buf + len / sizeof(*buf); 6117 6118 endnz = buf; 6119 for (range = buf; range < end; range++) { 6120 lba = scsi_8btou64(range->lba); 6121 num_blocks = scsi_4btoul(range->length); 6122 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6123 || ((lba + num_blocks) < lba)) { 6124 ctl_set_lba_out_of_range(ctsio); 6125 ctl_done((union ctl_io *)ctsio); 6126 return (CTL_RETVAL_COMPLETE); 6127 } 6128 if (num_blocks != 0) 6129 endnz = range + 1; 6130 } 6131 6132 /* 6133 * Block backend can not handle zero last range. 6134 * Filter it out and return if there is nothing left. 6135 */ 6136 len = (uint8_t *)endnz - (uint8_t *)buf; 6137 if (len == 0) { 6138 ctl_set_success(ctsio); 6139 ctl_done((union ctl_io *)ctsio); 6140 return (CTL_RETVAL_COMPLETE); 6141 } 6142 6143 mtx_lock(&lun->lun_lock); 6144 ptrlen = (struct ctl_ptr_len_flags *) 6145 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6146 ptrlen->ptr = (void *)buf; 6147 ptrlen->len = len; 6148 ptrlen->flags = byte2; 6149 ctl_check_blocked(lun); 6150 mtx_unlock(&lun->lun_lock); 6151 6152 retval = lun->backend->config_write((union ctl_io *)ctsio); 6153 return (retval); 6154} 6155 6156/* 6157 * Note that this function currently doesn't actually do anything inside 6158 * CTL to enforce things if the DQue bit is turned on. 6159 * 6160 * Also note that this function can't be used in the default case, because 6161 * the DQue bit isn't set in the changeable mask for the control mode page 6162 * anyway. This is just here as an example for how to implement a page 6163 * handler, and a placeholder in case we want to allow the user to turn 6164 * tagged queueing on and off. 6165 * 6166 * The D_SENSE bit handling is functional, however, and will turn 6167 * descriptor sense on and off for a given LUN. 6168 */ 6169int 6170ctl_control_page_handler(struct ctl_scsiio *ctsio, 6171 struct ctl_page_index *page_index, uint8_t *page_ptr) 6172{ 6173 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6174 struct ctl_lun *lun; 6175 struct ctl_softc *softc; 6176 int set_ua; 6177 uint32_t initidx; 6178 6179 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6180 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6181 set_ua = 0; 6182 6183 user_cp = (struct scsi_control_page *)page_ptr; 6184 current_cp = (struct scsi_control_page *) 6185 (page_index->page_data + (page_index->page_len * 6186 CTL_PAGE_CURRENT)); 6187 saved_cp = (struct scsi_control_page *) 6188 (page_index->page_data + (page_index->page_len * 6189 CTL_PAGE_SAVED)); 6190 6191 softc = control_softc; 6192 6193 mtx_lock(&lun->lun_lock); 6194 if (((current_cp->rlec & SCP_DSENSE) == 0) 6195 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6196 /* 6197 * Descriptor sense is currently turned off and the user 6198 * wants to turn it on. 6199 */ 6200 current_cp->rlec |= SCP_DSENSE; 6201 saved_cp->rlec |= SCP_DSENSE; 6202 lun->flags |= CTL_LUN_SENSE_DESC; 6203 set_ua = 1; 6204 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6205 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6206 /* 6207 * Descriptor sense is currently turned on, and the user 6208 * wants to turn it off. 6209 */ 6210 current_cp->rlec &= ~SCP_DSENSE; 6211 saved_cp->rlec &= ~SCP_DSENSE; 6212 lun->flags &= ~CTL_LUN_SENSE_DESC; 6213 set_ua = 1; 6214 } 6215 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6216 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6217 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6218 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6219 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6220 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6221 set_ua = 1; 6222 } 6223 if (set_ua != 0) { 6224 int i; 6225 /* 6226 * Let other initiators know that the mode 6227 * parameters for this LUN have changed. 6228 */ 6229 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6230 if (i == initidx) 6231 continue; 6232 6233 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6234 } 6235 } 6236 mtx_unlock(&lun->lun_lock); 6237 6238 return (0); 6239} 6240 6241int 6242ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6243 struct ctl_page_index *page_index, uint8_t *page_ptr) 6244{ 6245 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6246 struct ctl_lun *lun; 6247 int set_ua; 6248 uint32_t initidx; 6249 6250 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6251 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6252 set_ua = 0; 6253 6254 user_cp = (struct scsi_caching_page *)page_ptr; 6255 current_cp = (struct scsi_caching_page *) 6256 (page_index->page_data + (page_index->page_len * 6257 CTL_PAGE_CURRENT)); 6258 saved_cp = (struct scsi_caching_page *) 6259 (page_index->page_data + (page_index->page_len * 6260 CTL_PAGE_SAVED)); 6261 6262 mtx_lock(&lun->lun_lock); 6263 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6264 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6265 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6266 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6267 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6268 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6269 set_ua = 1; 6270 } 6271 if (set_ua != 0) { 6272 int i; 6273 /* 6274 * Let other initiators know that the mode 6275 * parameters for this LUN have changed. 6276 */ 6277 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6278 if (i == initidx) 6279 continue; 6280 6281 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6282 } 6283 } 6284 mtx_unlock(&lun->lun_lock); 6285 6286 return (0); 6287} 6288 6289int 6290ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6291 struct ctl_page_index *page_index, uint8_t *page_ptr) 6292{ 6293 return (0); 6294} 6295 6296int 6297ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6298 struct ctl_page_index *page_index, int pc) 6299{ 6300 struct copan_power_subpage *page; 6301 6302 page = (struct copan_power_subpage *)page_index->page_data + 6303 (page_index->page_len * pc); 6304 6305 switch (pc) { 6306 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6307 /* 6308 * We don't update the changable bits for this page. 6309 */ 6310 break; 6311 case SMS_PAGE_CTRL_CURRENT >> 6: 6312 case SMS_PAGE_CTRL_DEFAULT >> 6: 6313 case SMS_PAGE_CTRL_SAVED >> 6: 6314#ifdef NEEDTOPORT 6315 ctl_update_power_subpage(page); 6316#endif 6317 break; 6318 default: 6319#ifdef NEEDTOPORT 6320 EPRINT(0, "Invalid PC %d!!", pc); 6321#endif 6322 break; 6323 } 6324 return (0); 6325} 6326 6327 6328int 6329ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6330 struct ctl_page_index *page_index, uint8_t *page_ptr) 6331{ 6332 struct copan_aps_subpage *user_sp; 6333 struct copan_aps_subpage *current_sp; 6334 union ctl_modepage_info *modepage_info; 6335 struct ctl_softc *softc; 6336 struct ctl_lun *lun; 6337 int retval; 6338 6339 retval = CTL_RETVAL_COMPLETE; 6340 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6341 (page_index->page_len * CTL_PAGE_CURRENT)); 6342 softc = control_softc; 6343 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6344 6345 user_sp = (struct copan_aps_subpage *)page_ptr; 6346 6347 modepage_info = (union ctl_modepage_info *) 6348 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6349 6350 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6351 modepage_info->header.subpage = page_index->subpage; 6352 modepage_info->aps.lock_active = user_sp->lock_active; 6353 6354 mtx_lock(&softc->ctl_lock); 6355 6356 /* 6357 * If there is a request to lock the LUN and another LUN is locked 6358 * this is an error. If the requested LUN is already locked ignore 6359 * the request. If no LUN is locked attempt to lock it. 6360 * if there is a request to unlock the LUN and the LUN is currently 6361 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6362 * if another LUN is locked or no LUN is locked. 6363 */ 6364 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6365 if (softc->aps_locked_lun == lun->lun) { 6366 /* 6367 * This LUN is already locked, so we're done. 6368 */ 6369 retval = CTL_RETVAL_COMPLETE; 6370 } else if (softc->aps_locked_lun == 0) { 6371 /* 6372 * No one has the lock, pass the request to the 6373 * backend. 6374 */ 6375 retval = lun->backend->config_write( 6376 (union ctl_io *)ctsio); 6377 } else { 6378 /* 6379 * Someone else has the lock, throw out the request. 6380 */ 6381 ctl_set_already_locked(ctsio); 6382 free(ctsio->kern_data_ptr, M_CTL); 6383 ctl_done((union ctl_io *)ctsio); 6384 6385 /* 6386 * Set the return value so that ctl_do_mode_select() 6387 * won't try to complete the command. We already 6388 * completed it here. 6389 */ 6390 retval = CTL_RETVAL_ERROR; 6391 } 6392 } else if (softc->aps_locked_lun == lun->lun) { 6393 /* 6394 * This LUN is locked, so pass the unlock request to the 6395 * backend. 6396 */ 6397 retval = lun->backend->config_write((union ctl_io *)ctsio); 6398 } 6399 mtx_unlock(&softc->ctl_lock); 6400 6401 return (retval); 6402} 6403 6404int 6405ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6406 struct ctl_page_index *page_index, 6407 uint8_t *page_ptr) 6408{ 6409 uint8_t *c; 6410 int i; 6411 6412 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6413 ctl_time_io_secs = 6414 (c[0] << 8) | 6415 (c[1] << 0) | 6416 0; 6417 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6418 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6419 printf("page data:"); 6420 for (i=0; i<8; i++) 6421 printf(" %.2x",page_ptr[i]); 6422 printf("\n"); 6423 return (0); 6424} 6425 6426int 6427ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6428 struct ctl_page_index *page_index, 6429 int pc) 6430{ 6431 struct copan_debugconf_subpage *page; 6432 6433 page = (struct copan_debugconf_subpage *)page_index->page_data + 6434 (page_index->page_len * pc); 6435 6436 switch (pc) { 6437 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6438 case SMS_PAGE_CTRL_DEFAULT >> 6: 6439 case SMS_PAGE_CTRL_SAVED >> 6: 6440 /* 6441 * We don't update the changable or default bits for this page. 6442 */ 6443 break; 6444 case SMS_PAGE_CTRL_CURRENT >> 6: 6445 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6446 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6447 break; 6448 default: 6449#ifdef NEEDTOPORT 6450 EPRINT(0, "Invalid PC %d!!", pc); 6451#endif /* NEEDTOPORT */ 6452 break; 6453 } 6454 return (0); 6455} 6456 6457 6458static int 6459ctl_do_mode_select(union ctl_io *io) 6460{ 6461 struct scsi_mode_page_header *page_header; 6462 struct ctl_page_index *page_index; 6463 struct ctl_scsiio *ctsio; 6464 int control_dev, page_len; 6465 int page_len_offset, page_len_size; 6466 union ctl_modepage_info *modepage_info; 6467 struct ctl_lun *lun; 6468 int *len_left, *len_used; 6469 int retval, i; 6470 6471 ctsio = &io->scsiio; 6472 page_index = NULL; 6473 page_len = 0; 6474 retval = CTL_RETVAL_COMPLETE; 6475 6476 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6477 6478 if (lun->be_lun->lun_type != T_DIRECT) 6479 control_dev = 1; 6480 else 6481 control_dev = 0; 6482 6483 modepage_info = (union ctl_modepage_info *) 6484 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6485 len_left = &modepage_info->header.len_left; 6486 len_used = &modepage_info->header.len_used; 6487 6488do_next_page: 6489 6490 page_header = (struct scsi_mode_page_header *) 6491 (ctsio->kern_data_ptr + *len_used); 6492 6493 if (*len_left == 0) { 6494 free(ctsio->kern_data_ptr, M_CTL); 6495 ctl_set_success(ctsio); 6496 ctl_done((union ctl_io *)ctsio); 6497 return (CTL_RETVAL_COMPLETE); 6498 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6499 6500 free(ctsio->kern_data_ptr, M_CTL); 6501 ctl_set_param_len_error(ctsio); 6502 ctl_done((union ctl_io *)ctsio); 6503 return (CTL_RETVAL_COMPLETE); 6504 6505 } else if ((page_header->page_code & SMPH_SPF) 6506 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6507 6508 free(ctsio->kern_data_ptr, M_CTL); 6509 ctl_set_param_len_error(ctsio); 6510 ctl_done((union ctl_io *)ctsio); 6511 return (CTL_RETVAL_COMPLETE); 6512 } 6513 6514 6515 /* 6516 * XXX KDM should we do something with the block descriptor? 6517 */ 6518 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6519 6520 if ((control_dev != 0) 6521 && (lun->mode_pages.index[i].page_flags & 6522 CTL_PAGE_FLAG_DISK_ONLY)) 6523 continue; 6524 6525 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6526 (page_header->page_code & SMPH_PC_MASK)) 6527 continue; 6528 6529 /* 6530 * If neither page has a subpage code, then we've got a 6531 * match. 6532 */ 6533 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6534 && ((page_header->page_code & SMPH_SPF) == 0)) { 6535 page_index = &lun->mode_pages.index[i]; 6536 page_len = page_header->page_length; 6537 break; 6538 } 6539 6540 /* 6541 * If both pages have subpages, then the subpage numbers 6542 * have to match. 6543 */ 6544 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6545 && (page_header->page_code & SMPH_SPF)) { 6546 struct scsi_mode_page_header_sp *sph; 6547 6548 sph = (struct scsi_mode_page_header_sp *)page_header; 6549 6550 if (lun->mode_pages.index[i].subpage == 6551 sph->subpage) { 6552 page_index = &lun->mode_pages.index[i]; 6553 page_len = scsi_2btoul(sph->page_length); 6554 break; 6555 } 6556 } 6557 } 6558 6559 /* 6560 * If we couldn't find the page, or if we don't have a mode select 6561 * handler for it, send back an error to the user. 6562 */ 6563 if ((page_index == NULL) 6564 || (page_index->select_handler == NULL)) { 6565 ctl_set_invalid_field(ctsio, 6566 /*sks_valid*/ 1, 6567 /*command*/ 0, 6568 /*field*/ *len_used, 6569 /*bit_valid*/ 0, 6570 /*bit*/ 0); 6571 free(ctsio->kern_data_ptr, M_CTL); 6572 ctl_done((union ctl_io *)ctsio); 6573 return (CTL_RETVAL_COMPLETE); 6574 } 6575 6576 if (page_index->page_code & SMPH_SPF) { 6577 page_len_offset = 2; 6578 page_len_size = 2; 6579 } else { 6580 page_len_size = 1; 6581 page_len_offset = 1; 6582 } 6583 6584 /* 6585 * If the length the initiator gives us isn't the one we specify in 6586 * the mode page header, or if they didn't specify enough data in 6587 * the CDB to avoid truncating this page, kick out the request. 6588 */ 6589 if ((page_len != (page_index->page_len - page_len_offset - 6590 page_len_size)) 6591 || (*len_left < page_index->page_len)) { 6592 6593 6594 ctl_set_invalid_field(ctsio, 6595 /*sks_valid*/ 1, 6596 /*command*/ 0, 6597 /*field*/ *len_used + page_len_offset, 6598 /*bit_valid*/ 0, 6599 /*bit*/ 0); 6600 free(ctsio->kern_data_ptr, M_CTL); 6601 ctl_done((union ctl_io *)ctsio); 6602 return (CTL_RETVAL_COMPLETE); 6603 } 6604 6605 /* 6606 * Run through the mode page, checking to make sure that the bits 6607 * the user changed are actually legal for him to change. 6608 */ 6609 for (i = 0; i < page_index->page_len; i++) { 6610 uint8_t *user_byte, *change_mask, *current_byte; 6611 int bad_bit; 6612 int j; 6613 6614 user_byte = (uint8_t *)page_header + i; 6615 change_mask = page_index->page_data + 6616 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6617 current_byte = page_index->page_data + 6618 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6619 6620 /* 6621 * Check to see whether the user set any bits in this byte 6622 * that he is not allowed to set. 6623 */ 6624 if ((*user_byte & ~(*change_mask)) == 6625 (*current_byte & ~(*change_mask))) 6626 continue; 6627 6628 /* 6629 * Go through bit by bit to determine which one is illegal. 6630 */ 6631 bad_bit = 0; 6632 for (j = 7; j >= 0; j--) { 6633 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6634 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6635 bad_bit = i; 6636 break; 6637 } 6638 } 6639 ctl_set_invalid_field(ctsio, 6640 /*sks_valid*/ 1, 6641 /*command*/ 0, 6642 /*field*/ *len_used + i, 6643 /*bit_valid*/ 1, 6644 /*bit*/ bad_bit); 6645 free(ctsio->kern_data_ptr, M_CTL); 6646 ctl_done((union ctl_io *)ctsio); 6647 return (CTL_RETVAL_COMPLETE); 6648 } 6649 6650 /* 6651 * Decrement these before we call the page handler, since we may 6652 * end up getting called back one way or another before the handler 6653 * returns to this context. 6654 */ 6655 *len_left -= page_index->page_len; 6656 *len_used += page_index->page_len; 6657 6658 retval = page_index->select_handler(ctsio, page_index, 6659 (uint8_t *)page_header); 6660 6661 /* 6662 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6663 * wait until this queued command completes to finish processing 6664 * the mode page. If it returns anything other than 6665 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6666 * already set the sense information, freed the data pointer, and 6667 * completed the io for us. 6668 */ 6669 if (retval != CTL_RETVAL_COMPLETE) 6670 goto bailout_no_done; 6671 6672 /* 6673 * If the initiator sent us more than one page, parse the next one. 6674 */ 6675 if (*len_left > 0) 6676 goto do_next_page; 6677 6678 ctl_set_success(ctsio); 6679 free(ctsio->kern_data_ptr, M_CTL); 6680 ctl_done((union ctl_io *)ctsio); 6681 6682bailout_no_done: 6683 6684 return (CTL_RETVAL_COMPLETE); 6685 6686} 6687 6688int 6689ctl_mode_select(struct ctl_scsiio *ctsio) 6690{ 6691 int param_len, pf, sp; 6692 int header_size, bd_len; 6693 int len_left, len_used; 6694 struct ctl_page_index *page_index; 6695 struct ctl_lun *lun; 6696 int control_dev, page_len; 6697 union ctl_modepage_info *modepage_info; 6698 int retval; 6699 6700 pf = 0; 6701 sp = 0; 6702 page_len = 0; 6703 len_used = 0; 6704 len_left = 0; 6705 retval = 0; 6706 bd_len = 0; 6707 page_index = NULL; 6708 6709 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6710 6711 if (lun->be_lun->lun_type != T_DIRECT) 6712 control_dev = 1; 6713 else 6714 control_dev = 0; 6715 6716 switch (ctsio->cdb[0]) { 6717 case MODE_SELECT_6: { 6718 struct scsi_mode_select_6 *cdb; 6719 6720 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6721 6722 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6723 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6724 6725 param_len = cdb->length; 6726 header_size = sizeof(struct scsi_mode_header_6); 6727 break; 6728 } 6729 case MODE_SELECT_10: { 6730 struct scsi_mode_select_10 *cdb; 6731 6732 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6733 6734 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6735 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6736 6737 param_len = scsi_2btoul(cdb->length); 6738 header_size = sizeof(struct scsi_mode_header_10); 6739 break; 6740 } 6741 default: 6742 ctl_set_invalid_opcode(ctsio); 6743 ctl_done((union ctl_io *)ctsio); 6744 return (CTL_RETVAL_COMPLETE); 6745 break; /* NOTREACHED */ 6746 } 6747 6748 /* 6749 * From SPC-3: 6750 * "A parameter list length of zero indicates that the Data-Out Buffer 6751 * shall be empty. This condition shall not be considered as an error." 6752 */ 6753 if (param_len == 0) { 6754 ctl_set_success(ctsio); 6755 ctl_done((union ctl_io *)ctsio); 6756 return (CTL_RETVAL_COMPLETE); 6757 } 6758 6759 /* 6760 * Since we'll hit this the first time through, prior to 6761 * allocation, we don't need to free a data buffer here. 6762 */ 6763 if (param_len < header_size) { 6764 ctl_set_param_len_error(ctsio); 6765 ctl_done((union ctl_io *)ctsio); 6766 return (CTL_RETVAL_COMPLETE); 6767 } 6768 6769 /* 6770 * Allocate the data buffer and grab the user's data. In theory, 6771 * we shouldn't have to sanity check the parameter list length here 6772 * because the maximum size is 64K. We should be able to malloc 6773 * that much without too many problems. 6774 */ 6775 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6776 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6777 ctsio->kern_data_len = param_len; 6778 ctsio->kern_total_len = param_len; 6779 ctsio->kern_data_resid = 0; 6780 ctsio->kern_rel_offset = 0; 6781 ctsio->kern_sg_entries = 0; 6782 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6783 ctsio->be_move_done = ctl_config_move_done; 6784 ctl_datamove((union ctl_io *)ctsio); 6785 6786 return (CTL_RETVAL_COMPLETE); 6787 } 6788 6789 switch (ctsio->cdb[0]) { 6790 case MODE_SELECT_6: { 6791 struct scsi_mode_header_6 *mh6; 6792 6793 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6794 bd_len = mh6->blk_desc_len; 6795 break; 6796 } 6797 case MODE_SELECT_10: { 6798 struct scsi_mode_header_10 *mh10; 6799 6800 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6801 bd_len = scsi_2btoul(mh10->blk_desc_len); 6802 break; 6803 } 6804 default: 6805 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6806 break; 6807 } 6808 6809 if (param_len < (header_size + bd_len)) { 6810 free(ctsio->kern_data_ptr, M_CTL); 6811 ctl_set_param_len_error(ctsio); 6812 ctl_done((union ctl_io *)ctsio); 6813 return (CTL_RETVAL_COMPLETE); 6814 } 6815 6816 /* 6817 * Set the IO_CONT flag, so that if this I/O gets passed to 6818 * ctl_config_write_done(), it'll get passed back to 6819 * ctl_do_mode_select() for further processing, or completion if 6820 * we're all done. 6821 */ 6822 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6823 ctsio->io_cont = ctl_do_mode_select; 6824 6825 modepage_info = (union ctl_modepage_info *) 6826 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6827 6828 memset(modepage_info, 0, sizeof(*modepage_info)); 6829 6830 len_left = param_len - header_size - bd_len; 6831 len_used = header_size + bd_len; 6832 6833 modepage_info->header.len_left = len_left; 6834 modepage_info->header.len_used = len_used; 6835 6836 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6837} 6838 6839int 6840ctl_mode_sense(struct ctl_scsiio *ctsio) 6841{ 6842 struct ctl_lun *lun; 6843 int pc, page_code, dbd, llba, subpage; 6844 int alloc_len, page_len, header_len, total_len; 6845 struct scsi_mode_block_descr *block_desc; 6846 struct ctl_page_index *page_index; 6847 int control_dev; 6848 6849 dbd = 0; 6850 llba = 0; 6851 block_desc = NULL; 6852 page_index = NULL; 6853 6854 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6855 6856 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6857 6858 if (lun->be_lun->lun_type != T_DIRECT) 6859 control_dev = 1; 6860 else 6861 control_dev = 0; 6862 6863 if (lun->flags & CTL_LUN_PR_RESERVED) { 6864 uint32_t residx; 6865 6866 /* 6867 * XXX KDM need a lock here. 6868 */ 6869 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6870 if ((lun->res_type == SPR_TYPE_EX_AC 6871 && residx != lun->pr_res_idx) 6872 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6873 || lun->res_type == SPR_TYPE_EX_AC_AR) 6874 && !lun->per_res[residx].registered)) { 6875 ctl_set_reservation_conflict(ctsio); 6876 ctl_done((union ctl_io *)ctsio); 6877 return (CTL_RETVAL_COMPLETE); 6878 } 6879 } 6880 6881 switch (ctsio->cdb[0]) { 6882 case MODE_SENSE_6: { 6883 struct scsi_mode_sense_6 *cdb; 6884 6885 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6886 6887 header_len = sizeof(struct scsi_mode_hdr_6); 6888 if (cdb->byte2 & SMS_DBD) 6889 dbd = 1; 6890 else 6891 header_len += sizeof(struct scsi_mode_block_descr); 6892 6893 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6894 page_code = cdb->page & SMS_PAGE_CODE; 6895 subpage = cdb->subpage; 6896 alloc_len = cdb->length; 6897 break; 6898 } 6899 case MODE_SENSE_10: { 6900 struct scsi_mode_sense_10 *cdb; 6901 6902 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6903 6904 header_len = sizeof(struct scsi_mode_hdr_10); 6905 6906 if (cdb->byte2 & SMS_DBD) 6907 dbd = 1; 6908 else 6909 header_len += sizeof(struct scsi_mode_block_descr); 6910 if (cdb->byte2 & SMS10_LLBAA) 6911 llba = 1; 6912 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6913 page_code = cdb->page & SMS_PAGE_CODE; 6914 subpage = cdb->subpage; 6915 alloc_len = scsi_2btoul(cdb->length); 6916 break; 6917 } 6918 default: 6919 ctl_set_invalid_opcode(ctsio); 6920 ctl_done((union ctl_io *)ctsio); 6921 return (CTL_RETVAL_COMPLETE); 6922 break; /* NOTREACHED */ 6923 } 6924 6925 /* 6926 * We have to make a first pass through to calculate the size of 6927 * the pages that match the user's query. Then we allocate enough 6928 * memory to hold it, and actually copy the data into the buffer. 6929 */ 6930 switch (page_code) { 6931 case SMS_ALL_PAGES_PAGE: { 6932 int i; 6933 6934 page_len = 0; 6935 6936 /* 6937 * At the moment, values other than 0 and 0xff here are 6938 * reserved according to SPC-3. 6939 */ 6940 if ((subpage != SMS_SUBPAGE_PAGE_0) 6941 && (subpage != SMS_SUBPAGE_ALL)) { 6942 ctl_set_invalid_field(ctsio, 6943 /*sks_valid*/ 1, 6944 /*command*/ 1, 6945 /*field*/ 3, 6946 /*bit_valid*/ 0, 6947 /*bit*/ 0); 6948 ctl_done((union ctl_io *)ctsio); 6949 return (CTL_RETVAL_COMPLETE); 6950 } 6951 6952 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6953 if ((control_dev != 0) 6954 && (lun->mode_pages.index[i].page_flags & 6955 CTL_PAGE_FLAG_DISK_ONLY)) 6956 continue; 6957 6958 /* 6959 * We don't use this subpage if the user didn't 6960 * request all subpages. 6961 */ 6962 if ((lun->mode_pages.index[i].subpage != 0) 6963 && (subpage == SMS_SUBPAGE_PAGE_0)) 6964 continue; 6965 6966#if 0 6967 printf("found page %#x len %d\n", 6968 lun->mode_pages.index[i].page_code & 6969 SMPH_PC_MASK, 6970 lun->mode_pages.index[i].page_len); 6971#endif 6972 page_len += lun->mode_pages.index[i].page_len; 6973 } 6974 break; 6975 } 6976 default: { 6977 int i; 6978 6979 page_len = 0; 6980 6981 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6982 /* Look for the right page code */ 6983 if ((lun->mode_pages.index[i].page_code & 6984 SMPH_PC_MASK) != page_code) 6985 continue; 6986 6987 /* Look for the right subpage or the subpage wildcard*/ 6988 if ((lun->mode_pages.index[i].subpage != subpage) 6989 && (subpage != SMS_SUBPAGE_ALL)) 6990 continue; 6991 6992 /* Make sure the page is supported for this dev type */ 6993 if ((control_dev != 0) 6994 && (lun->mode_pages.index[i].page_flags & 6995 CTL_PAGE_FLAG_DISK_ONLY)) 6996 continue; 6997 6998#if 0 6999 printf("found page %#x len %d\n", 7000 lun->mode_pages.index[i].page_code & 7001 SMPH_PC_MASK, 7002 lun->mode_pages.index[i].page_len); 7003#endif 7004 7005 page_len += lun->mode_pages.index[i].page_len; 7006 } 7007 7008 if (page_len == 0) { 7009 ctl_set_invalid_field(ctsio, 7010 /*sks_valid*/ 1, 7011 /*command*/ 1, 7012 /*field*/ 2, 7013 /*bit_valid*/ 1, 7014 /*bit*/ 5); 7015 ctl_done((union ctl_io *)ctsio); 7016 return (CTL_RETVAL_COMPLETE); 7017 } 7018 break; 7019 } 7020 } 7021 7022 total_len = header_len + page_len; 7023#if 0 7024 printf("header_len = %d, page_len = %d, total_len = %d\n", 7025 header_len, page_len, total_len); 7026#endif 7027 7028 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7029 ctsio->kern_sg_entries = 0; 7030 ctsio->kern_data_resid = 0; 7031 ctsio->kern_rel_offset = 0; 7032 if (total_len < alloc_len) { 7033 ctsio->residual = alloc_len - total_len; 7034 ctsio->kern_data_len = total_len; 7035 ctsio->kern_total_len = total_len; 7036 } else { 7037 ctsio->residual = 0; 7038 ctsio->kern_data_len = alloc_len; 7039 ctsio->kern_total_len = alloc_len; 7040 } 7041 7042 switch (ctsio->cdb[0]) { 7043 case MODE_SENSE_6: { 7044 struct scsi_mode_hdr_6 *header; 7045 7046 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7047 7048 header->datalen = ctl_min(total_len - 1, 254); 7049 if (control_dev == 0) 7050 header->dev_specific = 0x10; /* DPOFUA */ 7051 if (dbd) 7052 header->block_descr_len = 0; 7053 else 7054 header->block_descr_len = 7055 sizeof(struct scsi_mode_block_descr); 7056 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7057 break; 7058 } 7059 case MODE_SENSE_10: { 7060 struct scsi_mode_hdr_10 *header; 7061 int datalen; 7062 7063 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7064 7065 datalen = ctl_min(total_len - 2, 65533); 7066 scsi_ulto2b(datalen, header->datalen); 7067 if (control_dev == 0) 7068 header->dev_specific = 0x10; /* DPOFUA */ 7069 if (dbd) 7070 scsi_ulto2b(0, header->block_descr_len); 7071 else 7072 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7073 header->block_descr_len); 7074 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7075 break; 7076 } 7077 default: 7078 panic("invalid CDB type %#x", ctsio->cdb[0]); 7079 break; /* NOTREACHED */ 7080 } 7081 7082 /* 7083 * If we've got a disk, use its blocksize in the block 7084 * descriptor. Otherwise, just set it to 0. 7085 */ 7086 if (dbd == 0) { 7087 if (control_dev == 0) 7088 scsi_ulto3b(lun->be_lun->blocksize, 7089 block_desc->block_len); 7090 else 7091 scsi_ulto3b(0, block_desc->block_len); 7092 } 7093 7094 switch (page_code) { 7095 case SMS_ALL_PAGES_PAGE: { 7096 int i, data_used; 7097 7098 data_used = header_len; 7099 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7100 struct ctl_page_index *page_index; 7101 7102 page_index = &lun->mode_pages.index[i]; 7103 7104 if ((control_dev != 0) 7105 && (page_index->page_flags & 7106 CTL_PAGE_FLAG_DISK_ONLY)) 7107 continue; 7108 7109 /* 7110 * We don't use this subpage if the user didn't 7111 * request all subpages. We already checked (above) 7112 * to make sure the user only specified a subpage 7113 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7114 */ 7115 if ((page_index->subpage != 0) 7116 && (subpage == SMS_SUBPAGE_PAGE_0)) 7117 continue; 7118 7119 /* 7120 * Call the handler, if it exists, to update the 7121 * page to the latest values. 7122 */ 7123 if (page_index->sense_handler != NULL) 7124 page_index->sense_handler(ctsio, page_index,pc); 7125 7126 memcpy(ctsio->kern_data_ptr + data_used, 7127 page_index->page_data + 7128 (page_index->page_len * pc), 7129 page_index->page_len); 7130 data_used += page_index->page_len; 7131 } 7132 break; 7133 } 7134 default: { 7135 int i, data_used; 7136 7137 data_used = header_len; 7138 7139 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7140 struct ctl_page_index *page_index; 7141 7142 page_index = &lun->mode_pages.index[i]; 7143 7144 /* Look for the right page code */ 7145 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7146 continue; 7147 7148 /* Look for the right subpage or the subpage wildcard*/ 7149 if ((page_index->subpage != subpage) 7150 && (subpage != SMS_SUBPAGE_ALL)) 7151 continue; 7152 7153 /* Make sure the page is supported for this dev type */ 7154 if ((control_dev != 0) 7155 && (page_index->page_flags & 7156 CTL_PAGE_FLAG_DISK_ONLY)) 7157 continue; 7158 7159 /* 7160 * Call the handler, if it exists, to update the 7161 * page to the latest values. 7162 */ 7163 if (page_index->sense_handler != NULL) 7164 page_index->sense_handler(ctsio, page_index,pc); 7165 7166 memcpy(ctsio->kern_data_ptr + data_used, 7167 page_index->page_data + 7168 (page_index->page_len * pc), 7169 page_index->page_len); 7170 data_used += page_index->page_len; 7171 } 7172 break; 7173 } 7174 } 7175 7176 ctsio->scsi_status = SCSI_STATUS_OK; 7177 7178 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7179 ctsio->be_move_done = ctl_config_move_done; 7180 ctl_datamove((union ctl_io *)ctsio); 7181 7182 return (CTL_RETVAL_COMPLETE); 7183} 7184 7185int 7186ctl_read_capacity(struct ctl_scsiio *ctsio) 7187{ 7188 struct scsi_read_capacity *cdb; 7189 struct scsi_read_capacity_data *data; 7190 struct ctl_lun *lun; 7191 uint32_t lba; 7192 7193 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7194 7195 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7196 7197 lba = scsi_4btoul(cdb->addr); 7198 if (((cdb->pmi & SRC_PMI) == 0) 7199 && (lba != 0)) { 7200 ctl_set_invalid_field(/*ctsio*/ ctsio, 7201 /*sks_valid*/ 1, 7202 /*command*/ 1, 7203 /*field*/ 2, 7204 /*bit_valid*/ 0, 7205 /*bit*/ 0); 7206 ctl_done((union ctl_io *)ctsio); 7207 return (CTL_RETVAL_COMPLETE); 7208 } 7209 7210 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7211 7212 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7213 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7214 ctsio->residual = 0; 7215 ctsio->kern_data_len = sizeof(*data); 7216 ctsio->kern_total_len = sizeof(*data); 7217 ctsio->kern_data_resid = 0; 7218 ctsio->kern_rel_offset = 0; 7219 ctsio->kern_sg_entries = 0; 7220 7221 /* 7222 * If the maximum LBA is greater than 0xfffffffe, the user must 7223 * issue a SERVICE ACTION IN (16) command, with the read capacity 7224 * serivce action set. 7225 */ 7226 if (lun->be_lun->maxlba > 0xfffffffe) 7227 scsi_ulto4b(0xffffffff, data->addr); 7228 else 7229 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7230 7231 /* 7232 * XXX KDM this may not be 512 bytes... 7233 */ 7234 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7235 7236 ctsio->scsi_status = SCSI_STATUS_OK; 7237 7238 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7239 ctsio->be_move_done = ctl_config_move_done; 7240 ctl_datamove((union ctl_io *)ctsio); 7241 7242 return (CTL_RETVAL_COMPLETE); 7243} 7244 7245int 7246ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7247{ 7248 struct scsi_read_capacity_16 *cdb; 7249 struct scsi_read_capacity_data_long *data; 7250 struct ctl_lun *lun; 7251 uint64_t lba; 7252 uint32_t alloc_len; 7253 7254 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7255 7256 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7257 7258 alloc_len = scsi_4btoul(cdb->alloc_len); 7259 lba = scsi_8btou64(cdb->addr); 7260 7261 if ((cdb->reladr & SRC16_PMI) 7262 && (lba != 0)) { 7263 ctl_set_invalid_field(/*ctsio*/ ctsio, 7264 /*sks_valid*/ 1, 7265 /*command*/ 1, 7266 /*field*/ 2, 7267 /*bit_valid*/ 0, 7268 /*bit*/ 0); 7269 ctl_done((union ctl_io *)ctsio); 7270 return (CTL_RETVAL_COMPLETE); 7271 } 7272 7273 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7274 7275 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7276 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7277 7278 if (sizeof(*data) < alloc_len) { 7279 ctsio->residual = alloc_len - sizeof(*data); 7280 ctsio->kern_data_len = sizeof(*data); 7281 ctsio->kern_total_len = sizeof(*data); 7282 } else { 7283 ctsio->residual = 0; 7284 ctsio->kern_data_len = alloc_len; 7285 ctsio->kern_total_len = alloc_len; 7286 } 7287 ctsio->kern_data_resid = 0; 7288 ctsio->kern_rel_offset = 0; 7289 ctsio->kern_sg_entries = 0; 7290 7291 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7292 /* XXX KDM this may not be 512 bytes... */ 7293 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7294 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7295 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7296 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7297 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7298 7299 ctsio->scsi_status = SCSI_STATUS_OK; 7300 7301 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7302 ctsio->be_move_done = ctl_config_move_done; 7303 ctl_datamove((union ctl_io *)ctsio); 7304 7305 return (CTL_RETVAL_COMPLETE); 7306} 7307 7308int 7309ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7310{ 7311 struct scsi_maintenance_in *cdb; 7312 int retval; 7313 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7314 int num_target_port_groups, num_target_ports, single; 7315 struct ctl_lun *lun; 7316 struct ctl_softc *softc; 7317 struct ctl_port *port; 7318 struct scsi_target_group_data *rtg_ptr; 7319 struct scsi_target_group_data_extended *rtg_ext_ptr; 7320 struct scsi_target_port_group_descriptor *tpg_desc; 7321 7322 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7323 7324 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7325 softc = control_softc; 7326 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7327 7328 retval = CTL_RETVAL_COMPLETE; 7329 7330 switch (cdb->byte2 & STG_PDF_MASK) { 7331 case STG_PDF_LENGTH: 7332 ext = 0; 7333 break; 7334 case STG_PDF_EXTENDED: 7335 ext = 1; 7336 break; 7337 default: 7338 ctl_set_invalid_field(/*ctsio*/ ctsio, 7339 /*sks_valid*/ 1, 7340 /*command*/ 1, 7341 /*field*/ 2, 7342 /*bit_valid*/ 1, 7343 /*bit*/ 5); 7344 ctl_done((union ctl_io *)ctsio); 7345 return(retval); 7346 } 7347 7348 single = ctl_is_single; 7349 if (single) 7350 num_target_port_groups = 1; 7351 else 7352 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7353 num_target_ports = 0; 7354 mtx_lock(&softc->ctl_lock); 7355 STAILQ_FOREACH(port, &softc->port_list, links) { 7356 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7357 continue; 7358 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7359 continue; 7360 num_target_ports++; 7361 } 7362 mtx_unlock(&softc->ctl_lock); 7363 7364 if (ext) 7365 total_len = sizeof(struct scsi_target_group_data_extended); 7366 else 7367 total_len = sizeof(struct scsi_target_group_data); 7368 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7369 num_target_port_groups + 7370 sizeof(struct scsi_target_port_descriptor) * 7371 num_target_ports * num_target_port_groups; 7372 7373 alloc_len = scsi_4btoul(cdb->length); 7374 7375 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7376 7377 ctsio->kern_sg_entries = 0; 7378 7379 if (total_len < alloc_len) { 7380 ctsio->residual = alloc_len - total_len; 7381 ctsio->kern_data_len = total_len; 7382 ctsio->kern_total_len = total_len; 7383 } else { 7384 ctsio->residual = 0; 7385 ctsio->kern_data_len = alloc_len; 7386 ctsio->kern_total_len = alloc_len; 7387 } 7388 ctsio->kern_data_resid = 0; 7389 ctsio->kern_rel_offset = 0; 7390 7391 if (ext) { 7392 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7393 ctsio->kern_data_ptr; 7394 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7395 rtg_ext_ptr->format_type = 0x10; 7396 rtg_ext_ptr->implicit_transition_time = 0; 7397 tpg_desc = &rtg_ext_ptr->groups[0]; 7398 } else { 7399 rtg_ptr = (struct scsi_target_group_data *) 7400 ctsio->kern_data_ptr; 7401 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7402 tpg_desc = &rtg_ptr->groups[0]; 7403 } 7404 7405 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7406 mtx_lock(&softc->ctl_lock); 7407 for (g = 0; g < num_target_port_groups; g++) { 7408 if (g == pg) 7409 tpg_desc->pref_state = TPG_PRIMARY | 7410 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7411 else 7412 tpg_desc->pref_state = 7413 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7414 tpg_desc->support = TPG_AO_SUP; 7415 if (!single) 7416 tpg_desc->support |= TPG_AN_SUP; 7417 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7418 tpg_desc->status = TPG_IMPLICIT; 7419 pc = 0; 7420 STAILQ_FOREACH(port, &softc->port_list, links) { 7421 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7422 continue; 7423 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7424 CTL_MAX_LUNS) 7425 continue; 7426 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7427 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7428 relative_target_port_identifier); 7429 pc++; 7430 } 7431 tpg_desc->target_port_count = pc; 7432 tpg_desc = (struct scsi_target_port_group_descriptor *) 7433 &tpg_desc->descriptors[pc]; 7434 } 7435 mtx_unlock(&softc->ctl_lock); 7436 7437 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7438 ctsio->be_move_done = ctl_config_move_done; 7439 7440 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7441 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7442 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7443 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7444 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7445 7446 ctl_datamove((union ctl_io *)ctsio); 7447 return(retval); 7448} 7449 7450int 7451ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7452{ 7453 struct ctl_lun *lun; 7454 struct scsi_report_supported_opcodes *cdb; 7455 const struct ctl_cmd_entry *entry, *sentry; 7456 struct scsi_report_supported_opcodes_all *all; 7457 struct scsi_report_supported_opcodes_descr *descr; 7458 struct scsi_report_supported_opcodes_one *one; 7459 int retval; 7460 int alloc_len, total_len; 7461 int opcode, service_action, i, j, num; 7462 7463 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7464 7465 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7466 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7467 7468 retval = CTL_RETVAL_COMPLETE; 7469 7470 opcode = cdb->requested_opcode; 7471 service_action = scsi_2btoul(cdb->requested_service_action); 7472 switch (cdb->options & RSO_OPTIONS_MASK) { 7473 case RSO_OPTIONS_ALL: 7474 num = 0; 7475 for (i = 0; i < 256; i++) { 7476 entry = &ctl_cmd_table[i]; 7477 if (entry->flags & CTL_CMD_FLAG_SA5) { 7478 for (j = 0; j < 32; j++) { 7479 sentry = &((const struct ctl_cmd_entry *) 7480 entry->execute)[j]; 7481 if (ctl_cmd_applicable( 7482 lun->be_lun->lun_type, sentry)) 7483 num++; 7484 } 7485 } else { 7486 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7487 entry)) 7488 num++; 7489 } 7490 } 7491 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7492 num * sizeof(struct scsi_report_supported_opcodes_descr); 7493 break; 7494 case RSO_OPTIONS_OC: 7495 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7496 ctl_set_invalid_field(/*ctsio*/ ctsio, 7497 /*sks_valid*/ 1, 7498 /*command*/ 1, 7499 /*field*/ 2, 7500 /*bit_valid*/ 1, 7501 /*bit*/ 2); 7502 ctl_done((union ctl_io *)ctsio); 7503 return (CTL_RETVAL_COMPLETE); 7504 } 7505 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7506 break; 7507 case RSO_OPTIONS_OC_SA: 7508 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7509 service_action >= 32) { 7510 ctl_set_invalid_field(/*ctsio*/ ctsio, 7511 /*sks_valid*/ 1, 7512 /*command*/ 1, 7513 /*field*/ 2, 7514 /*bit_valid*/ 1, 7515 /*bit*/ 2); 7516 ctl_done((union ctl_io *)ctsio); 7517 return (CTL_RETVAL_COMPLETE); 7518 } 7519 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7520 break; 7521 default: 7522 ctl_set_invalid_field(/*ctsio*/ ctsio, 7523 /*sks_valid*/ 1, 7524 /*command*/ 1, 7525 /*field*/ 2, 7526 /*bit_valid*/ 1, 7527 /*bit*/ 2); 7528 ctl_done((union ctl_io *)ctsio); 7529 return (CTL_RETVAL_COMPLETE); 7530 } 7531 7532 alloc_len = scsi_4btoul(cdb->length); 7533 7534 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7535 7536 ctsio->kern_sg_entries = 0; 7537 7538 if (total_len < alloc_len) { 7539 ctsio->residual = alloc_len - total_len; 7540 ctsio->kern_data_len = total_len; 7541 ctsio->kern_total_len = total_len; 7542 } else { 7543 ctsio->residual = 0; 7544 ctsio->kern_data_len = alloc_len; 7545 ctsio->kern_total_len = alloc_len; 7546 } 7547 ctsio->kern_data_resid = 0; 7548 ctsio->kern_rel_offset = 0; 7549 7550 switch (cdb->options & RSO_OPTIONS_MASK) { 7551 case RSO_OPTIONS_ALL: 7552 all = (struct scsi_report_supported_opcodes_all *) 7553 ctsio->kern_data_ptr; 7554 num = 0; 7555 for (i = 0; i < 256; i++) { 7556 entry = &ctl_cmd_table[i]; 7557 if (entry->flags & CTL_CMD_FLAG_SA5) { 7558 for (j = 0; j < 32; j++) { 7559 sentry = &((const struct ctl_cmd_entry *) 7560 entry->execute)[j]; 7561 if (!ctl_cmd_applicable( 7562 lun->be_lun->lun_type, sentry)) 7563 continue; 7564 descr = &all->descr[num++]; 7565 descr->opcode = i; 7566 scsi_ulto2b(j, descr->service_action); 7567 descr->flags = RSO_SERVACTV; 7568 scsi_ulto2b(sentry->length, 7569 descr->cdb_length); 7570 } 7571 } else { 7572 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7573 entry)) 7574 continue; 7575 descr = &all->descr[num++]; 7576 descr->opcode = i; 7577 scsi_ulto2b(0, descr->service_action); 7578 descr->flags = 0; 7579 scsi_ulto2b(entry->length, descr->cdb_length); 7580 } 7581 } 7582 scsi_ulto4b( 7583 num * sizeof(struct scsi_report_supported_opcodes_descr), 7584 all->length); 7585 break; 7586 case RSO_OPTIONS_OC: 7587 one = (struct scsi_report_supported_opcodes_one *) 7588 ctsio->kern_data_ptr; 7589 entry = &ctl_cmd_table[opcode]; 7590 goto fill_one; 7591 case RSO_OPTIONS_OC_SA: 7592 one = (struct scsi_report_supported_opcodes_one *) 7593 ctsio->kern_data_ptr; 7594 entry = &ctl_cmd_table[opcode]; 7595 entry = &((const struct ctl_cmd_entry *) 7596 entry->execute)[service_action]; 7597fill_one: 7598 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7599 one->support = 3; 7600 scsi_ulto2b(entry->length, one->cdb_length); 7601 one->cdb_usage[0] = opcode; 7602 memcpy(&one->cdb_usage[1], entry->usage, 7603 entry->length - 1); 7604 } else 7605 one->support = 1; 7606 break; 7607 } 7608 7609 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7610 ctsio->be_move_done = ctl_config_move_done; 7611 7612 ctl_datamove((union ctl_io *)ctsio); 7613 return(retval); 7614} 7615 7616int 7617ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7618{ 7619 struct ctl_lun *lun; 7620 struct scsi_report_supported_tmf *cdb; 7621 struct scsi_report_supported_tmf_data *data; 7622 int retval; 7623 int alloc_len, total_len; 7624 7625 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7626 7627 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7628 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7629 7630 retval = CTL_RETVAL_COMPLETE; 7631 7632 total_len = sizeof(struct scsi_report_supported_tmf_data); 7633 alloc_len = scsi_4btoul(cdb->length); 7634 7635 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7636 7637 ctsio->kern_sg_entries = 0; 7638 7639 if (total_len < alloc_len) { 7640 ctsio->residual = alloc_len - total_len; 7641 ctsio->kern_data_len = total_len; 7642 ctsio->kern_total_len = total_len; 7643 } else { 7644 ctsio->residual = 0; 7645 ctsio->kern_data_len = alloc_len; 7646 ctsio->kern_total_len = alloc_len; 7647 } 7648 ctsio->kern_data_resid = 0; 7649 ctsio->kern_rel_offset = 0; 7650 7651 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7652 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7653 data->byte2 |= RST_ITNRS; 7654 7655 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7656 ctsio->be_move_done = ctl_config_move_done; 7657 7658 ctl_datamove((union ctl_io *)ctsio); 7659 return (retval); 7660} 7661 7662int 7663ctl_report_timestamp(struct ctl_scsiio *ctsio) 7664{ 7665 struct ctl_lun *lun; 7666 struct scsi_report_timestamp *cdb; 7667 struct scsi_report_timestamp_data *data; 7668 struct timeval tv; 7669 int64_t timestamp; 7670 int retval; 7671 int alloc_len, total_len; 7672 7673 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7674 7675 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7676 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7677 7678 retval = CTL_RETVAL_COMPLETE; 7679 7680 total_len = sizeof(struct scsi_report_timestamp_data); 7681 alloc_len = scsi_4btoul(cdb->length); 7682 7683 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7684 7685 ctsio->kern_sg_entries = 0; 7686 7687 if (total_len < alloc_len) { 7688 ctsio->residual = alloc_len - total_len; 7689 ctsio->kern_data_len = total_len; 7690 ctsio->kern_total_len = total_len; 7691 } else { 7692 ctsio->residual = 0; 7693 ctsio->kern_data_len = alloc_len; 7694 ctsio->kern_total_len = alloc_len; 7695 } 7696 ctsio->kern_data_resid = 0; 7697 ctsio->kern_rel_offset = 0; 7698 7699 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7700 scsi_ulto2b(sizeof(*data) - 2, data->length); 7701 data->origin = RTS_ORIG_OUTSIDE; 7702 getmicrotime(&tv); 7703 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7704 scsi_ulto4b(timestamp >> 16, data->timestamp); 7705 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7706 7707 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7708 ctsio->be_move_done = ctl_config_move_done; 7709 7710 ctl_datamove((union ctl_io *)ctsio); 7711 return (retval); 7712} 7713 7714int 7715ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7716{ 7717 struct scsi_per_res_in *cdb; 7718 int alloc_len, total_len = 0; 7719 /* struct scsi_per_res_in_rsrv in_data; */ 7720 struct ctl_lun *lun; 7721 struct ctl_softc *softc; 7722 7723 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7724 7725 softc = control_softc; 7726 7727 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7728 7729 alloc_len = scsi_2btoul(cdb->length); 7730 7731 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7732 7733retry: 7734 mtx_lock(&lun->lun_lock); 7735 switch (cdb->action) { 7736 case SPRI_RK: /* read keys */ 7737 total_len = sizeof(struct scsi_per_res_in_keys) + 7738 lun->pr_key_count * 7739 sizeof(struct scsi_per_res_key); 7740 break; 7741 case SPRI_RR: /* read reservation */ 7742 if (lun->flags & CTL_LUN_PR_RESERVED) 7743 total_len = sizeof(struct scsi_per_res_in_rsrv); 7744 else 7745 total_len = sizeof(struct scsi_per_res_in_header); 7746 break; 7747 case SPRI_RC: /* report capabilities */ 7748 total_len = sizeof(struct scsi_per_res_cap); 7749 break; 7750 case SPRI_RS: /* read full status */ 7751 total_len = sizeof(struct scsi_per_res_in_header) + 7752 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7753 lun->pr_key_count; 7754 break; 7755 default: 7756 panic("Invalid PR type %x", cdb->action); 7757 } 7758 mtx_unlock(&lun->lun_lock); 7759 7760 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7761 7762 if (total_len < alloc_len) { 7763 ctsio->residual = alloc_len - total_len; 7764 ctsio->kern_data_len = total_len; 7765 ctsio->kern_total_len = total_len; 7766 } else { 7767 ctsio->residual = 0; 7768 ctsio->kern_data_len = alloc_len; 7769 ctsio->kern_total_len = alloc_len; 7770 } 7771 7772 ctsio->kern_data_resid = 0; 7773 ctsio->kern_rel_offset = 0; 7774 ctsio->kern_sg_entries = 0; 7775 7776 mtx_lock(&lun->lun_lock); 7777 switch (cdb->action) { 7778 case SPRI_RK: { // read keys 7779 struct scsi_per_res_in_keys *res_keys; 7780 int i, key_count; 7781 7782 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7783 7784 /* 7785 * We had to drop the lock to allocate our buffer, which 7786 * leaves time for someone to come in with another 7787 * persistent reservation. (That is unlikely, though, 7788 * since this should be the only persistent reservation 7789 * command active right now.) 7790 */ 7791 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7792 (lun->pr_key_count * 7793 sizeof(struct scsi_per_res_key)))){ 7794 mtx_unlock(&lun->lun_lock); 7795 free(ctsio->kern_data_ptr, M_CTL); 7796 printf("%s: reservation length changed, retrying\n", 7797 __func__); 7798 goto retry; 7799 } 7800 7801 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7802 7803 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7804 lun->pr_key_count, res_keys->header.length); 7805 7806 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7807 if (!lun->per_res[i].registered) 7808 continue; 7809 7810 /* 7811 * We used lun->pr_key_count to calculate the 7812 * size to allocate. If it turns out the number of 7813 * initiators with the registered flag set is 7814 * larger than that (i.e. they haven't been kept in 7815 * sync), we've got a problem. 7816 */ 7817 if (key_count >= lun->pr_key_count) { 7818#ifdef NEEDTOPORT 7819 csevent_log(CSC_CTL | CSC_SHELF_SW | 7820 CTL_PR_ERROR, 7821 csevent_LogType_Fault, 7822 csevent_AlertLevel_Yellow, 7823 csevent_FRU_ShelfController, 7824 csevent_FRU_Firmware, 7825 csevent_FRU_Unknown, 7826 "registered keys %d >= key " 7827 "count %d", key_count, 7828 lun->pr_key_count); 7829#endif 7830 key_count++; 7831 continue; 7832 } 7833 memcpy(res_keys->keys[key_count].key, 7834 lun->per_res[i].res_key.key, 7835 ctl_min(sizeof(res_keys->keys[key_count].key), 7836 sizeof(lun->per_res[i].res_key))); 7837 key_count++; 7838 } 7839 break; 7840 } 7841 case SPRI_RR: { // read reservation 7842 struct scsi_per_res_in_rsrv *res; 7843 int tmp_len, header_only; 7844 7845 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7846 7847 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7848 7849 if (lun->flags & CTL_LUN_PR_RESERVED) 7850 { 7851 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7852 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7853 res->header.length); 7854 header_only = 0; 7855 } else { 7856 tmp_len = sizeof(struct scsi_per_res_in_header); 7857 scsi_ulto4b(0, res->header.length); 7858 header_only = 1; 7859 } 7860 7861 /* 7862 * We had to drop the lock to allocate our buffer, which 7863 * leaves time for someone to come in with another 7864 * persistent reservation. (That is unlikely, though, 7865 * since this should be the only persistent reservation 7866 * command active right now.) 7867 */ 7868 if (tmp_len != total_len) { 7869 mtx_unlock(&lun->lun_lock); 7870 free(ctsio->kern_data_ptr, M_CTL); 7871 printf("%s: reservation status changed, retrying\n", 7872 __func__); 7873 goto retry; 7874 } 7875 7876 /* 7877 * No reservation held, so we're done. 7878 */ 7879 if (header_only != 0) 7880 break; 7881 7882 /* 7883 * If the registration is an All Registrants type, the key 7884 * is 0, since it doesn't really matter. 7885 */ 7886 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7887 memcpy(res->data.reservation, 7888 &lun->per_res[lun->pr_res_idx].res_key, 7889 sizeof(struct scsi_per_res_key)); 7890 } 7891 res->data.scopetype = lun->res_type; 7892 break; 7893 } 7894 case SPRI_RC: //report capabilities 7895 { 7896 struct scsi_per_res_cap *res_cap; 7897 uint16_t type_mask; 7898 7899 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7900 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7901 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7902 type_mask = SPRI_TM_WR_EX_AR | 7903 SPRI_TM_EX_AC_RO | 7904 SPRI_TM_WR_EX_RO | 7905 SPRI_TM_EX_AC | 7906 SPRI_TM_WR_EX | 7907 SPRI_TM_EX_AC_AR; 7908 scsi_ulto2b(type_mask, res_cap->type_mask); 7909 break; 7910 } 7911 case SPRI_RS: { // read full status 7912 struct scsi_per_res_in_full *res_status; 7913 struct scsi_per_res_in_full_desc *res_desc; 7914 struct ctl_port *port; 7915 int i, len; 7916 7917 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7918 7919 /* 7920 * We had to drop the lock to allocate our buffer, which 7921 * leaves time for someone to come in with another 7922 * persistent reservation. (That is unlikely, though, 7923 * since this should be the only persistent reservation 7924 * command active right now.) 7925 */ 7926 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7927 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7928 lun->pr_key_count)){ 7929 mtx_unlock(&lun->lun_lock); 7930 free(ctsio->kern_data_ptr, M_CTL); 7931 printf("%s: reservation length changed, retrying\n", 7932 __func__); 7933 goto retry; 7934 } 7935 7936 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7937 7938 res_desc = &res_status->desc[0]; 7939 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7940 if (!lun->per_res[i].registered) 7941 continue; 7942 7943 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7944 sizeof(res_desc->res_key)); 7945 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7946 (lun->pr_res_idx == i || 7947 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7948 res_desc->flags = SPRI_FULL_R_HOLDER; 7949 res_desc->scopetype = lun->res_type; 7950 } 7951 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7952 res_desc->rel_trgt_port_id); 7953 len = 0; 7954 port = softc->ctl_ports[ 7955 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7956 if (port != NULL) 7957 len = ctl_create_iid(port, 7958 i % CTL_MAX_INIT_PER_PORT, 7959 res_desc->transport_id); 7960 scsi_ulto4b(len, res_desc->additional_length); 7961 res_desc = (struct scsi_per_res_in_full_desc *) 7962 &res_desc->transport_id[len]; 7963 } 7964 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7965 res_status->header.length); 7966 break; 7967 } 7968 default: 7969 /* 7970 * This is a bug, because we just checked for this above, 7971 * and should have returned an error. 7972 */ 7973 panic("Invalid PR type %x", cdb->action); 7974 break; /* NOTREACHED */ 7975 } 7976 mtx_unlock(&lun->lun_lock); 7977 7978 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7979 ctsio->be_move_done = ctl_config_move_done; 7980 7981 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7982 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7983 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7984 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7985 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7986 7987 ctl_datamove((union ctl_io *)ctsio); 7988 7989 return (CTL_RETVAL_COMPLETE); 7990} 7991 7992/* 7993 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7994 * it should return. 7995 */ 7996static int 7997ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7998 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7999 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8000 struct scsi_per_res_out_parms* param) 8001{ 8002 union ctl_ha_msg persis_io; 8003 int retval, i; 8004 int isc_retval; 8005 8006 retval = 0; 8007 8008 mtx_lock(&lun->lun_lock); 8009 if (sa_res_key == 0) { 8010 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8011 /* validate scope and type */ 8012 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8013 SPR_LU_SCOPE) { 8014 mtx_unlock(&lun->lun_lock); 8015 ctl_set_invalid_field(/*ctsio*/ ctsio, 8016 /*sks_valid*/ 1, 8017 /*command*/ 1, 8018 /*field*/ 2, 8019 /*bit_valid*/ 1, 8020 /*bit*/ 4); 8021 ctl_done((union ctl_io *)ctsio); 8022 return (1); 8023 } 8024 8025 if (type>8 || type==2 || type==4 || type==0) { 8026 mtx_unlock(&lun->lun_lock); 8027 ctl_set_invalid_field(/*ctsio*/ ctsio, 8028 /*sks_valid*/ 1, 8029 /*command*/ 1, 8030 /*field*/ 2, 8031 /*bit_valid*/ 1, 8032 /*bit*/ 0); 8033 ctl_done((union ctl_io *)ctsio); 8034 return (1); 8035 } 8036 8037 /* temporarily unregister this nexus */ 8038 lun->per_res[residx].registered = 0; 8039 8040 /* 8041 * Unregister everybody else and build UA for 8042 * them 8043 */ 8044 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8045 if (lun->per_res[i].registered == 0) 8046 continue; 8047 8048 if (!persis_offset 8049 && i <CTL_MAX_INITIATORS) 8050 lun->pending_ua[i] |= 8051 CTL_UA_REG_PREEMPT; 8052 else if (persis_offset 8053 && i >= persis_offset) 8054 lun->pending_ua[i-persis_offset] |= 8055 CTL_UA_REG_PREEMPT; 8056 lun->per_res[i].registered = 0; 8057 memset(&lun->per_res[i].res_key, 0, 8058 sizeof(struct scsi_per_res_key)); 8059 } 8060 lun->per_res[residx].registered = 1; 8061 lun->pr_key_count = 1; 8062 lun->res_type = type; 8063 if (lun->res_type != SPR_TYPE_WR_EX_AR 8064 && lun->res_type != SPR_TYPE_EX_AC_AR) 8065 lun->pr_res_idx = residx; 8066 8067 /* send msg to other side */ 8068 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8069 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8070 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8071 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8072 persis_io.pr.pr_info.res_type = type; 8073 memcpy(persis_io.pr.pr_info.sa_res_key, 8074 param->serv_act_res_key, 8075 sizeof(param->serv_act_res_key)); 8076 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8077 &persis_io, sizeof(persis_io), 0)) > 8078 CTL_HA_STATUS_SUCCESS) { 8079 printf("CTL:Persis Out error returned " 8080 "from ctl_ha_msg_send %d\n", 8081 isc_retval); 8082 } 8083 } else { 8084 /* not all registrants */ 8085 mtx_unlock(&lun->lun_lock); 8086 free(ctsio->kern_data_ptr, M_CTL); 8087 ctl_set_invalid_field(ctsio, 8088 /*sks_valid*/ 1, 8089 /*command*/ 0, 8090 /*field*/ 8, 8091 /*bit_valid*/ 0, 8092 /*bit*/ 0); 8093 ctl_done((union ctl_io *)ctsio); 8094 return (1); 8095 } 8096 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8097 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8098 int found = 0; 8099 8100 if (res_key == sa_res_key) { 8101 /* special case */ 8102 /* 8103 * The spec implies this is not good but doesn't 8104 * say what to do. There are two choices either 8105 * generate a res conflict or check condition 8106 * with illegal field in parameter data. Since 8107 * that is what is done when the sa_res_key is 8108 * zero I'll take that approach since this has 8109 * to do with the sa_res_key. 8110 */ 8111 mtx_unlock(&lun->lun_lock); 8112 free(ctsio->kern_data_ptr, M_CTL); 8113 ctl_set_invalid_field(ctsio, 8114 /*sks_valid*/ 1, 8115 /*command*/ 0, 8116 /*field*/ 8, 8117 /*bit_valid*/ 0, 8118 /*bit*/ 0); 8119 ctl_done((union ctl_io *)ctsio); 8120 return (1); 8121 } 8122 8123 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8124 if (lun->per_res[i].registered 8125 && memcmp(param->serv_act_res_key, 8126 lun->per_res[i].res_key.key, 8127 sizeof(struct scsi_per_res_key)) != 0) 8128 continue; 8129 8130 found = 1; 8131 lun->per_res[i].registered = 0; 8132 memset(&lun->per_res[i].res_key, 0, 8133 sizeof(struct scsi_per_res_key)); 8134 lun->pr_key_count--; 8135 8136 if (!persis_offset && i < CTL_MAX_INITIATORS) 8137 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8138 else if (persis_offset && i >= persis_offset) 8139 lun->pending_ua[i-persis_offset] |= 8140 CTL_UA_REG_PREEMPT; 8141 } 8142 if (!found) { 8143 mtx_unlock(&lun->lun_lock); 8144 free(ctsio->kern_data_ptr, M_CTL); 8145 ctl_set_reservation_conflict(ctsio); 8146 ctl_done((union ctl_io *)ctsio); 8147 return (CTL_RETVAL_COMPLETE); 8148 } 8149 /* send msg to other side */ 8150 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8151 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8152 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8153 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8154 persis_io.pr.pr_info.res_type = type; 8155 memcpy(persis_io.pr.pr_info.sa_res_key, 8156 param->serv_act_res_key, 8157 sizeof(param->serv_act_res_key)); 8158 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8159 &persis_io, sizeof(persis_io), 0)) > 8160 CTL_HA_STATUS_SUCCESS) { 8161 printf("CTL:Persis Out error returned from " 8162 "ctl_ha_msg_send %d\n", isc_retval); 8163 } 8164 } else { 8165 /* Reserved but not all registrants */ 8166 /* sa_res_key is res holder */ 8167 if (memcmp(param->serv_act_res_key, 8168 lun->per_res[lun->pr_res_idx].res_key.key, 8169 sizeof(struct scsi_per_res_key)) == 0) { 8170 /* validate scope and type */ 8171 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8172 SPR_LU_SCOPE) { 8173 mtx_unlock(&lun->lun_lock); 8174 ctl_set_invalid_field(/*ctsio*/ ctsio, 8175 /*sks_valid*/ 1, 8176 /*command*/ 1, 8177 /*field*/ 2, 8178 /*bit_valid*/ 1, 8179 /*bit*/ 4); 8180 ctl_done((union ctl_io *)ctsio); 8181 return (1); 8182 } 8183 8184 if (type>8 || type==2 || type==4 || type==0) { 8185 mtx_unlock(&lun->lun_lock); 8186 ctl_set_invalid_field(/*ctsio*/ ctsio, 8187 /*sks_valid*/ 1, 8188 /*command*/ 1, 8189 /*field*/ 2, 8190 /*bit_valid*/ 1, 8191 /*bit*/ 0); 8192 ctl_done((union ctl_io *)ctsio); 8193 return (1); 8194 } 8195 8196 /* 8197 * Do the following: 8198 * if sa_res_key != res_key remove all 8199 * registrants w/sa_res_key and generate UA 8200 * for these registrants(Registrations 8201 * Preempted) if it wasn't an exclusive 8202 * reservation generate UA(Reservations 8203 * Preempted) for all other registered nexuses 8204 * if the type has changed. Establish the new 8205 * reservation and holder. If res_key and 8206 * sa_res_key are the same do the above 8207 * except don't unregister the res holder. 8208 */ 8209 8210 /* 8211 * Temporarily unregister so it won't get 8212 * removed or UA generated 8213 */ 8214 lun->per_res[residx].registered = 0; 8215 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8216 if (lun->per_res[i].registered == 0) 8217 continue; 8218 8219 if (memcmp(param->serv_act_res_key, 8220 lun->per_res[i].res_key.key, 8221 sizeof(struct scsi_per_res_key)) == 0) { 8222 lun->per_res[i].registered = 0; 8223 memset(&lun->per_res[i].res_key, 8224 0, 8225 sizeof(struct scsi_per_res_key)); 8226 lun->pr_key_count--; 8227 8228 if (!persis_offset 8229 && i < CTL_MAX_INITIATORS) 8230 lun->pending_ua[i] |= 8231 CTL_UA_REG_PREEMPT; 8232 else if (persis_offset 8233 && i >= persis_offset) 8234 lun->pending_ua[i-persis_offset] |= 8235 CTL_UA_REG_PREEMPT; 8236 } else if (type != lun->res_type 8237 && (lun->res_type == SPR_TYPE_WR_EX_RO 8238 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8239 if (!persis_offset 8240 && i < CTL_MAX_INITIATORS) 8241 lun->pending_ua[i] |= 8242 CTL_UA_RES_RELEASE; 8243 else if (persis_offset 8244 && i >= persis_offset) 8245 lun->pending_ua[ 8246 i-persis_offset] |= 8247 CTL_UA_RES_RELEASE; 8248 } 8249 } 8250 lun->per_res[residx].registered = 1; 8251 lun->res_type = type; 8252 if (lun->res_type != SPR_TYPE_WR_EX_AR 8253 && lun->res_type != SPR_TYPE_EX_AC_AR) 8254 lun->pr_res_idx = residx; 8255 else 8256 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8257 8258 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8259 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8260 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8261 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8262 persis_io.pr.pr_info.res_type = type; 8263 memcpy(persis_io.pr.pr_info.sa_res_key, 8264 param->serv_act_res_key, 8265 sizeof(param->serv_act_res_key)); 8266 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8267 &persis_io, sizeof(persis_io), 0)) > 8268 CTL_HA_STATUS_SUCCESS) { 8269 printf("CTL:Persis Out error returned " 8270 "from ctl_ha_msg_send %d\n", 8271 isc_retval); 8272 } 8273 } else { 8274 /* 8275 * sa_res_key is not the res holder just 8276 * remove registrants 8277 */ 8278 int found=0; 8279 8280 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8281 if (memcmp(param->serv_act_res_key, 8282 lun->per_res[i].res_key.key, 8283 sizeof(struct scsi_per_res_key)) != 0) 8284 continue; 8285 8286 found = 1; 8287 lun->per_res[i].registered = 0; 8288 memset(&lun->per_res[i].res_key, 0, 8289 sizeof(struct scsi_per_res_key)); 8290 lun->pr_key_count--; 8291 8292 if (!persis_offset 8293 && i < CTL_MAX_INITIATORS) 8294 lun->pending_ua[i] |= 8295 CTL_UA_REG_PREEMPT; 8296 else if (persis_offset 8297 && i >= persis_offset) 8298 lun->pending_ua[i-persis_offset] |= 8299 CTL_UA_REG_PREEMPT; 8300 } 8301 8302 if (!found) { 8303 mtx_unlock(&lun->lun_lock); 8304 free(ctsio->kern_data_ptr, M_CTL); 8305 ctl_set_reservation_conflict(ctsio); 8306 ctl_done((union ctl_io *)ctsio); 8307 return (1); 8308 } 8309 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8310 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8311 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8312 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8313 persis_io.pr.pr_info.res_type = type; 8314 memcpy(persis_io.pr.pr_info.sa_res_key, 8315 param->serv_act_res_key, 8316 sizeof(param->serv_act_res_key)); 8317 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8318 &persis_io, sizeof(persis_io), 0)) > 8319 CTL_HA_STATUS_SUCCESS) { 8320 printf("CTL:Persis Out error returned " 8321 "from ctl_ha_msg_send %d\n", 8322 isc_retval); 8323 } 8324 } 8325 } 8326 8327 lun->PRGeneration++; 8328 mtx_unlock(&lun->lun_lock); 8329 8330 return (retval); 8331} 8332 8333static void 8334ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8335{ 8336 int i; 8337 8338 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8339 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8340 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8341 msg->pr.pr_info.sa_res_key, 8342 sizeof(struct scsi_per_res_key)) != 0) { 8343 uint64_t sa_res_key; 8344 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8345 8346 if (sa_res_key == 0) { 8347 /* temporarily unregister this nexus */ 8348 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8349 8350 /* 8351 * Unregister everybody else and build UA for 8352 * them 8353 */ 8354 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8355 if (lun->per_res[i].registered == 0) 8356 continue; 8357 8358 if (!persis_offset 8359 && i < CTL_MAX_INITIATORS) 8360 lun->pending_ua[i] |= 8361 CTL_UA_REG_PREEMPT; 8362 else if (persis_offset && i >= persis_offset) 8363 lun->pending_ua[i - persis_offset] |= 8364 CTL_UA_REG_PREEMPT; 8365 lun->per_res[i].registered = 0; 8366 memset(&lun->per_res[i].res_key, 0, 8367 sizeof(struct scsi_per_res_key)); 8368 } 8369 8370 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8371 lun->pr_key_count = 1; 8372 lun->res_type = msg->pr.pr_info.res_type; 8373 if (lun->res_type != SPR_TYPE_WR_EX_AR 8374 && lun->res_type != SPR_TYPE_EX_AC_AR) 8375 lun->pr_res_idx = msg->pr.pr_info.residx; 8376 } else { 8377 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8378 if (memcmp(msg->pr.pr_info.sa_res_key, 8379 lun->per_res[i].res_key.key, 8380 sizeof(struct scsi_per_res_key)) != 0) 8381 continue; 8382 8383 lun->per_res[i].registered = 0; 8384 memset(&lun->per_res[i].res_key, 0, 8385 sizeof(struct scsi_per_res_key)); 8386 lun->pr_key_count--; 8387 8388 if (!persis_offset 8389 && i < persis_offset) 8390 lun->pending_ua[i] |= 8391 CTL_UA_REG_PREEMPT; 8392 else if (persis_offset 8393 && i >= persis_offset) 8394 lun->pending_ua[i - persis_offset] |= 8395 CTL_UA_REG_PREEMPT; 8396 } 8397 } 8398 } else { 8399 /* 8400 * Temporarily unregister so it won't get removed 8401 * or UA generated 8402 */ 8403 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8404 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8405 if (lun->per_res[i].registered == 0) 8406 continue; 8407 8408 if (memcmp(msg->pr.pr_info.sa_res_key, 8409 lun->per_res[i].res_key.key, 8410 sizeof(struct scsi_per_res_key)) == 0) { 8411 lun->per_res[i].registered = 0; 8412 memset(&lun->per_res[i].res_key, 0, 8413 sizeof(struct scsi_per_res_key)); 8414 lun->pr_key_count--; 8415 if (!persis_offset 8416 && i < CTL_MAX_INITIATORS) 8417 lun->pending_ua[i] |= 8418 CTL_UA_REG_PREEMPT; 8419 else if (persis_offset 8420 && i >= persis_offset) 8421 lun->pending_ua[i - persis_offset] |= 8422 CTL_UA_REG_PREEMPT; 8423 } else if (msg->pr.pr_info.res_type != lun->res_type 8424 && (lun->res_type == SPR_TYPE_WR_EX_RO 8425 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8426 if (!persis_offset 8427 && i < persis_offset) 8428 lun->pending_ua[i] |= 8429 CTL_UA_RES_RELEASE; 8430 else if (persis_offset 8431 && i >= persis_offset) 8432 lun->pending_ua[i - persis_offset] |= 8433 CTL_UA_RES_RELEASE; 8434 } 8435 } 8436 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8437 lun->res_type = msg->pr.pr_info.res_type; 8438 if (lun->res_type != SPR_TYPE_WR_EX_AR 8439 && lun->res_type != SPR_TYPE_EX_AC_AR) 8440 lun->pr_res_idx = msg->pr.pr_info.residx; 8441 else 8442 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8443 } 8444 lun->PRGeneration++; 8445 8446} 8447 8448 8449int 8450ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8451{ 8452 int retval; 8453 int isc_retval; 8454 u_int32_t param_len; 8455 struct scsi_per_res_out *cdb; 8456 struct ctl_lun *lun; 8457 struct scsi_per_res_out_parms* param; 8458 struct ctl_softc *softc; 8459 uint32_t residx; 8460 uint64_t res_key, sa_res_key; 8461 uint8_t type; 8462 union ctl_ha_msg persis_io; 8463 int i; 8464 8465 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8466 8467 retval = CTL_RETVAL_COMPLETE; 8468 8469 softc = control_softc; 8470 8471 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8472 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8473 8474 /* 8475 * We only support whole-LUN scope. The scope & type are ignored for 8476 * register, register and ignore existing key and clear. 8477 * We sometimes ignore scope and type on preempts too!! 8478 * Verify reservation type here as well. 8479 */ 8480 type = cdb->scope_type & SPR_TYPE_MASK; 8481 if ((cdb->action == SPRO_RESERVE) 8482 || (cdb->action == SPRO_RELEASE)) { 8483 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8484 ctl_set_invalid_field(/*ctsio*/ ctsio, 8485 /*sks_valid*/ 1, 8486 /*command*/ 1, 8487 /*field*/ 2, 8488 /*bit_valid*/ 1, 8489 /*bit*/ 4); 8490 ctl_done((union ctl_io *)ctsio); 8491 return (CTL_RETVAL_COMPLETE); 8492 } 8493 8494 if (type>8 || type==2 || type==4 || type==0) { 8495 ctl_set_invalid_field(/*ctsio*/ ctsio, 8496 /*sks_valid*/ 1, 8497 /*command*/ 1, 8498 /*field*/ 2, 8499 /*bit_valid*/ 1, 8500 /*bit*/ 0); 8501 ctl_done((union ctl_io *)ctsio); 8502 return (CTL_RETVAL_COMPLETE); 8503 } 8504 } 8505 8506 param_len = scsi_4btoul(cdb->length); 8507 8508 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8509 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8510 ctsio->kern_data_len = param_len; 8511 ctsio->kern_total_len = param_len; 8512 ctsio->kern_data_resid = 0; 8513 ctsio->kern_rel_offset = 0; 8514 ctsio->kern_sg_entries = 0; 8515 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8516 ctsio->be_move_done = ctl_config_move_done; 8517 ctl_datamove((union ctl_io *)ctsio); 8518 8519 return (CTL_RETVAL_COMPLETE); 8520 } 8521 8522 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8523 8524 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8525 res_key = scsi_8btou64(param->res_key.key); 8526 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8527 8528 /* 8529 * Validate the reservation key here except for SPRO_REG_IGNO 8530 * This must be done for all other service actions 8531 */ 8532 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8533 mtx_lock(&lun->lun_lock); 8534 if (lun->per_res[residx].registered) { 8535 if (memcmp(param->res_key.key, 8536 lun->per_res[residx].res_key.key, 8537 ctl_min(sizeof(param->res_key), 8538 sizeof(lun->per_res[residx].res_key))) != 0) { 8539 /* 8540 * The current key passed in doesn't match 8541 * the one the initiator previously 8542 * registered. 8543 */ 8544 mtx_unlock(&lun->lun_lock); 8545 free(ctsio->kern_data_ptr, M_CTL); 8546 ctl_set_reservation_conflict(ctsio); 8547 ctl_done((union ctl_io *)ctsio); 8548 return (CTL_RETVAL_COMPLETE); 8549 } 8550 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8551 /* 8552 * We are not registered 8553 */ 8554 mtx_unlock(&lun->lun_lock); 8555 free(ctsio->kern_data_ptr, M_CTL); 8556 ctl_set_reservation_conflict(ctsio); 8557 ctl_done((union ctl_io *)ctsio); 8558 return (CTL_RETVAL_COMPLETE); 8559 } else if (res_key != 0) { 8560 /* 8561 * We are not registered and trying to register but 8562 * the register key isn't zero. 8563 */ 8564 mtx_unlock(&lun->lun_lock); 8565 free(ctsio->kern_data_ptr, M_CTL); 8566 ctl_set_reservation_conflict(ctsio); 8567 ctl_done((union ctl_io *)ctsio); 8568 return (CTL_RETVAL_COMPLETE); 8569 } 8570 mtx_unlock(&lun->lun_lock); 8571 } 8572 8573 switch (cdb->action & SPRO_ACTION_MASK) { 8574 case SPRO_REGISTER: 8575 case SPRO_REG_IGNO: { 8576 8577#if 0 8578 printf("Registration received\n"); 8579#endif 8580 8581 /* 8582 * We don't support any of these options, as we report in 8583 * the read capabilities request (see 8584 * ctl_persistent_reserve_in(), above). 8585 */ 8586 if ((param->flags & SPR_SPEC_I_PT) 8587 || (param->flags & SPR_ALL_TG_PT) 8588 || (param->flags & SPR_APTPL)) { 8589 int bit_ptr; 8590 8591 if (param->flags & SPR_APTPL) 8592 bit_ptr = 0; 8593 else if (param->flags & SPR_ALL_TG_PT) 8594 bit_ptr = 2; 8595 else /* SPR_SPEC_I_PT */ 8596 bit_ptr = 3; 8597 8598 free(ctsio->kern_data_ptr, M_CTL); 8599 ctl_set_invalid_field(ctsio, 8600 /*sks_valid*/ 1, 8601 /*command*/ 0, 8602 /*field*/ 20, 8603 /*bit_valid*/ 1, 8604 /*bit*/ bit_ptr); 8605 ctl_done((union ctl_io *)ctsio); 8606 return (CTL_RETVAL_COMPLETE); 8607 } 8608 8609 mtx_lock(&lun->lun_lock); 8610 8611 /* 8612 * The initiator wants to clear the 8613 * key/unregister. 8614 */ 8615 if (sa_res_key == 0) { 8616 if ((res_key == 0 8617 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8618 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8619 && !lun->per_res[residx].registered)) { 8620 mtx_unlock(&lun->lun_lock); 8621 goto done; 8622 } 8623 8624 lun->per_res[residx].registered = 0; 8625 memset(&lun->per_res[residx].res_key, 8626 0, sizeof(lun->per_res[residx].res_key)); 8627 lun->pr_key_count--; 8628 8629 if (residx == lun->pr_res_idx) { 8630 lun->flags &= ~CTL_LUN_PR_RESERVED; 8631 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8632 8633 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8634 || lun->res_type == SPR_TYPE_EX_AC_RO) 8635 && lun->pr_key_count) { 8636 /* 8637 * If the reservation is a registrants 8638 * only type we need to generate a UA 8639 * for other registered inits. The 8640 * sense code should be RESERVATIONS 8641 * RELEASED 8642 */ 8643 8644 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8645 if (lun->per_res[ 8646 i+persis_offset].registered 8647 == 0) 8648 continue; 8649 lun->pending_ua[i] |= 8650 CTL_UA_RES_RELEASE; 8651 } 8652 } 8653 lun->res_type = 0; 8654 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8655 if (lun->pr_key_count==0) { 8656 lun->flags &= ~CTL_LUN_PR_RESERVED; 8657 lun->res_type = 0; 8658 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8659 } 8660 } 8661 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8662 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8663 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8664 persis_io.pr.pr_info.residx = residx; 8665 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8666 &persis_io, sizeof(persis_io), 0 )) > 8667 CTL_HA_STATUS_SUCCESS) { 8668 printf("CTL:Persis Out error returned from " 8669 "ctl_ha_msg_send %d\n", isc_retval); 8670 } 8671 } else /* sa_res_key != 0 */ { 8672 8673 /* 8674 * If we aren't registered currently then increment 8675 * the key count and set the registered flag. 8676 */ 8677 if (!lun->per_res[residx].registered) { 8678 lun->pr_key_count++; 8679 lun->per_res[residx].registered = 1; 8680 } 8681 8682 memcpy(&lun->per_res[residx].res_key, 8683 param->serv_act_res_key, 8684 ctl_min(sizeof(param->serv_act_res_key), 8685 sizeof(lun->per_res[residx].res_key))); 8686 8687 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8688 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8689 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8690 persis_io.pr.pr_info.residx = residx; 8691 memcpy(persis_io.pr.pr_info.sa_res_key, 8692 param->serv_act_res_key, 8693 sizeof(param->serv_act_res_key)); 8694 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8695 &persis_io, sizeof(persis_io), 0)) > 8696 CTL_HA_STATUS_SUCCESS) { 8697 printf("CTL:Persis Out error returned from " 8698 "ctl_ha_msg_send %d\n", isc_retval); 8699 } 8700 } 8701 lun->PRGeneration++; 8702 mtx_unlock(&lun->lun_lock); 8703 8704 break; 8705 } 8706 case SPRO_RESERVE: 8707#if 0 8708 printf("Reserve executed type %d\n", type); 8709#endif 8710 mtx_lock(&lun->lun_lock); 8711 if (lun->flags & CTL_LUN_PR_RESERVED) { 8712 /* 8713 * if this isn't the reservation holder and it's 8714 * not a "all registrants" type or if the type is 8715 * different then we have a conflict 8716 */ 8717 if ((lun->pr_res_idx != residx 8718 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8719 || lun->res_type != type) { 8720 mtx_unlock(&lun->lun_lock); 8721 free(ctsio->kern_data_ptr, M_CTL); 8722 ctl_set_reservation_conflict(ctsio); 8723 ctl_done((union ctl_io *)ctsio); 8724 return (CTL_RETVAL_COMPLETE); 8725 } 8726 mtx_unlock(&lun->lun_lock); 8727 } else /* create a reservation */ { 8728 /* 8729 * If it's not an "all registrants" type record 8730 * reservation holder 8731 */ 8732 if (type != SPR_TYPE_WR_EX_AR 8733 && type != SPR_TYPE_EX_AC_AR) 8734 lun->pr_res_idx = residx; /* Res holder */ 8735 else 8736 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8737 8738 lun->flags |= CTL_LUN_PR_RESERVED; 8739 lun->res_type = type; 8740 8741 mtx_unlock(&lun->lun_lock); 8742 8743 /* send msg to other side */ 8744 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8745 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8746 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8747 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8748 persis_io.pr.pr_info.res_type = type; 8749 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8750 &persis_io, sizeof(persis_io), 0)) > 8751 CTL_HA_STATUS_SUCCESS) { 8752 printf("CTL:Persis Out error returned from " 8753 "ctl_ha_msg_send %d\n", isc_retval); 8754 } 8755 } 8756 break; 8757 8758 case SPRO_RELEASE: 8759 mtx_lock(&lun->lun_lock); 8760 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8761 /* No reservation exists return good status */ 8762 mtx_unlock(&lun->lun_lock); 8763 goto done; 8764 } 8765 /* 8766 * Is this nexus a reservation holder? 8767 */ 8768 if (lun->pr_res_idx != residx 8769 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8770 /* 8771 * not a res holder return good status but 8772 * do nothing 8773 */ 8774 mtx_unlock(&lun->lun_lock); 8775 goto done; 8776 } 8777 8778 if (lun->res_type != type) { 8779 mtx_unlock(&lun->lun_lock); 8780 free(ctsio->kern_data_ptr, M_CTL); 8781 ctl_set_illegal_pr_release(ctsio); 8782 ctl_done((union ctl_io *)ctsio); 8783 return (CTL_RETVAL_COMPLETE); 8784 } 8785 8786 /* okay to release */ 8787 lun->flags &= ~CTL_LUN_PR_RESERVED; 8788 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8789 lun->res_type = 0; 8790 8791 /* 8792 * if this isn't an exclusive access 8793 * res generate UA for all other 8794 * registrants. 8795 */ 8796 if (type != SPR_TYPE_EX_AC 8797 && type != SPR_TYPE_WR_EX) { 8798 /* 8799 * temporarily unregister so we don't generate UA 8800 */ 8801 lun->per_res[residx].registered = 0; 8802 8803 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8804 if (lun->per_res[i+persis_offset].registered 8805 == 0) 8806 continue; 8807 lun->pending_ua[i] |= 8808 CTL_UA_RES_RELEASE; 8809 } 8810 8811 lun->per_res[residx].registered = 1; 8812 } 8813 mtx_unlock(&lun->lun_lock); 8814 /* Send msg to other side */ 8815 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8816 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8817 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8818 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8819 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8820 printf("CTL:Persis Out error returned from " 8821 "ctl_ha_msg_send %d\n", isc_retval); 8822 } 8823 break; 8824 8825 case SPRO_CLEAR: 8826 /* send msg to other side */ 8827 8828 mtx_lock(&lun->lun_lock); 8829 lun->flags &= ~CTL_LUN_PR_RESERVED; 8830 lun->res_type = 0; 8831 lun->pr_key_count = 0; 8832 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8833 8834 8835 memset(&lun->per_res[residx].res_key, 8836 0, sizeof(lun->per_res[residx].res_key)); 8837 lun->per_res[residx].registered = 0; 8838 8839 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8840 if (lun->per_res[i].registered) { 8841 if (!persis_offset && i < CTL_MAX_INITIATORS) 8842 lun->pending_ua[i] |= 8843 CTL_UA_RES_PREEMPT; 8844 else if (persis_offset && i >= persis_offset) 8845 lun->pending_ua[i-persis_offset] |= 8846 CTL_UA_RES_PREEMPT; 8847 8848 memset(&lun->per_res[i].res_key, 8849 0, sizeof(struct scsi_per_res_key)); 8850 lun->per_res[i].registered = 0; 8851 } 8852 lun->PRGeneration++; 8853 mtx_unlock(&lun->lun_lock); 8854 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8855 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8856 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8857 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8858 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8859 printf("CTL:Persis Out error returned from " 8860 "ctl_ha_msg_send %d\n", isc_retval); 8861 } 8862 break; 8863 8864 case SPRO_PREEMPT: { 8865 int nretval; 8866 8867 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8868 residx, ctsio, cdb, param); 8869 if (nretval != 0) 8870 return (CTL_RETVAL_COMPLETE); 8871 break; 8872 } 8873 default: 8874 panic("Invalid PR type %x", cdb->action); 8875 } 8876 8877done: 8878 free(ctsio->kern_data_ptr, M_CTL); 8879 ctl_set_success(ctsio); 8880 ctl_done((union ctl_io *)ctsio); 8881 8882 return (retval); 8883} 8884 8885/* 8886 * This routine is for handling a message from the other SC pertaining to 8887 * persistent reserve out. All the error checking will have been done 8888 * so only perorming the action need be done here to keep the two 8889 * in sync. 8890 */ 8891static void 8892ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8893{ 8894 struct ctl_lun *lun; 8895 struct ctl_softc *softc; 8896 int i; 8897 uint32_t targ_lun; 8898 8899 softc = control_softc; 8900 8901 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8902 lun = softc->ctl_luns[targ_lun]; 8903 mtx_lock(&lun->lun_lock); 8904 switch(msg->pr.pr_info.action) { 8905 case CTL_PR_REG_KEY: 8906 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8907 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8908 lun->pr_key_count++; 8909 } 8910 lun->PRGeneration++; 8911 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8912 msg->pr.pr_info.sa_res_key, 8913 sizeof(struct scsi_per_res_key)); 8914 break; 8915 8916 case CTL_PR_UNREG_KEY: 8917 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8918 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8919 0, sizeof(struct scsi_per_res_key)); 8920 lun->pr_key_count--; 8921 8922 /* XXX Need to see if the reservation has been released */ 8923 /* if so do we need to generate UA? */ 8924 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8925 lun->flags &= ~CTL_LUN_PR_RESERVED; 8926 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8927 8928 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8929 || lun->res_type == SPR_TYPE_EX_AC_RO) 8930 && lun->pr_key_count) { 8931 /* 8932 * If the reservation is a registrants 8933 * only type we need to generate a UA 8934 * for other registered inits. The 8935 * sense code should be RESERVATIONS 8936 * RELEASED 8937 */ 8938 8939 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8940 if (lun->per_res[i+ 8941 persis_offset].registered == 0) 8942 continue; 8943 8944 lun->pending_ua[i] |= 8945 CTL_UA_RES_RELEASE; 8946 } 8947 } 8948 lun->res_type = 0; 8949 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8950 if (lun->pr_key_count==0) { 8951 lun->flags &= ~CTL_LUN_PR_RESERVED; 8952 lun->res_type = 0; 8953 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8954 } 8955 } 8956 lun->PRGeneration++; 8957 break; 8958 8959 case CTL_PR_RESERVE: 8960 lun->flags |= CTL_LUN_PR_RESERVED; 8961 lun->res_type = msg->pr.pr_info.res_type; 8962 lun->pr_res_idx = msg->pr.pr_info.residx; 8963 8964 break; 8965 8966 case CTL_PR_RELEASE: 8967 /* 8968 * if this isn't an exclusive access res generate UA for all 8969 * other registrants. 8970 */ 8971 if (lun->res_type != SPR_TYPE_EX_AC 8972 && lun->res_type != SPR_TYPE_WR_EX) { 8973 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8974 if (lun->per_res[i+persis_offset].registered) 8975 lun->pending_ua[i] |= 8976 CTL_UA_RES_RELEASE; 8977 } 8978 8979 lun->flags &= ~CTL_LUN_PR_RESERVED; 8980 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8981 lun->res_type = 0; 8982 break; 8983 8984 case CTL_PR_PREEMPT: 8985 ctl_pro_preempt_other(lun, msg); 8986 break; 8987 case CTL_PR_CLEAR: 8988 lun->flags &= ~CTL_LUN_PR_RESERVED; 8989 lun->res_type = 0; 8990 lun->pr_key_count = 0; 8991 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8992 8993 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8994 if (lun->per_res[i].registered == 0) 8995 continue; 8996 if (!persis_offset 8997 && i < CTL_MAX_INITIATORS) 8998 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8999 else if (persis_offset 9000 && i >= persis_offset) 9001 lun->pending_ua[i-persis_offset] |= 9002 CTL_UA_RES_PREEMPT; 9003 memset(&lun->per_res[i].res_key, 0, 9004 sizeof(struct scsi_per_res_key)); 9005 lun->per_res[i].registered = 0; 9006 } 9007 lun->PRGeneration++; 9008 break; 9009 } 9010 9011 mtx_unlock(&lun->lun_lock); 9012} 9013 9014int 9015ctl_read_write(struct ctl_scsiio *ctsio) 9016{ 9017 struct ctl_lun *lun; 9018 struct ctl_lba_len_flags *lbalen; 9019 uint64_t lba; 9020 uint32_t num_blocks; 9021 int flags, retval; 9022 int isread; 9023 9024 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9025 9026 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9027 9028 flags = 0; 9029 retval = CTL_RETVAL_COMPLETE; 9030 9031 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9032 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9033 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9034 uint32_t residx; 9035 9036 /* 9037 * XXX KDM need a lock here. 9038 */ 9039 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9040 if ((lun->res_type == SPR_TYPE_EX_AC 9041 && residx != lun->pr_res_idx) 9042 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9043 || lun->res_type == SPR_TYPE_EX_AC_AR) 9044 && !lun->per_res[residx].registered)) { 9045 ctl_set_reservation_conflict(ctsio); 9046 ctl_done((union ctl_io *)ctsio); 9047 return (CTL_RETVAL_COMPLETE); 9048 } 9049 } 9050 9051 switch (ctsio->cdb[0]) { 9052 case READ_6: 9053 case WRITE_6: { 9054 struct scsi_rw_6 *cdb; 9055 9056 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9057 9058 lba = scsi_3btoul(cdb->addr); 9059 /* only 5 bits are valid in the most significant address byte */ 9060 lba &= 0x1fffff; 9061 num_blocks = cdb->length; 9062 /* 9063 * This is correct according to SBC-2. 9064 */ 9065 if (num_blocks == 0) 9066 num_blocks = 256; 9067 break; 9068 } 9069 case READ_10: 9070 case WRITE_10: { 9071 struct scsi_rw_10 *cdb; 9072 9073 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9074 if (cdb->byte2 & SRW10_FUA) 9075 flags |= CTL_LLF_FUA; 9076 if (cdb->byte2 & SRW10_DPO) 9077 flags |= CTL_LLF_DPO; 9078 lba = scsi_4btoul(cdb->addr); 9079 num_blocks = scsi_2btoul(cdb->length); 9080 break; 9081 } 9082 case WRITE_VERIFY_10: { 9083 struct scsi_write_verify_10 *cdb; 9084 9085 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9086 flags |= CTL_LLF_FUA; 9087 if (cdb->byte2 & SWV_DPO) 9088 flags |= CTL_LLF_DPO; 9089 lba = scsi_4btoul(cdb->addr); 9090 num_blocks = scsi_2btoul(cdb->length); 9091 break; 9092 } 9093 case READ_12: 9094 case WRITE_12: { 9095 struct scsi_rw_12 *cdb; 9096 9097 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9098 if (cdb->byte2 & SRW12_FUA) 9099 flags |= CTL_LLF_FUA; 9100 if (cdb->byte2 & SRW12_DPO) 9101 flags |= CTL_LLF_DPO; 9102 lba = scsi_4btoul(cdb->addr); 9103 num_blocks = scsi_4btoul(cdb->length); 9104 break; 9105 } 9106 case WRITE_VERIFY_12: { 9107 struct scsi_write_verify_12 *cdb; 9108 9109 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9110 flags |= CTL_LLF_FUA; 9111 if (cdb->byte2 & SWV_DPO) 9112 flags |= CTL_LLF_DPO; 9113 lba = scsi_4btoul(cdb->addr); 9114 num_blocks = scsi_4btoul(cdb->length); 9115 break; 9116 } 9117 case READ_16: 9118 case WRITE_16: { 9119 struct scsi_rw_16 *cdb; 9120 9121 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9122 if (cdb->byte2 & SRW12_FUA) 9123 flags |= CTL_LLF_FUA; 9124 if (cdb->byte2 & SRW12_DPO) 9125 flags |= CTL_LLF_DPO; 9126 lba = scsi_8btou64(cdb->addr); 9127 num_blocks = scsi_4btoul(cdb->length); 9128 break; 9129 } 9130 case WRITE_VERIFY_16: { 9131 struct scsi_write_verify_16 *cdb; 9132 9133 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9134 flags |= CTL_LLF_FUA; 9135 if (cdb->byte2 & SWV_DPO) 9136 flags |= CTL_LLF_DPO; 9137 lba = scsi_8btou64(cdb->addr); 9138 num_blocks = scsi_4btoul(cdb->length); 9139 break; 9140 } 9141 default: 9142 /* 9143 * We got a command we don't support. This shouldn't 9144 * happen, commands should be filtered out above us. 9145 */ 9146 ctl_set_invalid_opcode(ctsio); 9147 ctl_done((union ctl_io *)ctsio); 9148 9149 return (CTL_RETVAL_COMPLETE); 9150 break; /* NOTREACHED */ 9151 } 9152 9153 /* 9154 * The first check is to make sure we're in bounds, the second 9155 * check is to catch wrap-around problems. If the lba + num blocks 9156 * is less than the lba, then we've wrapped around and the block 9157 * range is invalid anyway. 9158 */ 9159 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9160 || ((lba + num_blocks) < lba)) { 9161 ctl_set_lba_out_of_range(ctsio); 9162 ctl_done((union ctl_io *)ctsio); 9163 return (CTL_RETVAL_COMPLETE); 9164 } 9165 9166 /* 9167 * According to SBC-3, a transfer length of 0 is not an error. 9168 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9169 * translates to 256 blocks for those commands. 9170 */ 9171 if (num_blocks == 0) { 9172 ctl_set_success(ctsio); 9173 ctl_done((union ctl_io *)ctsio); 9174 return (CTL_RETVAL_COMPLETE); 9175 } 9176 9177 /* Set FUA and/or DPO if caches are disabled. */ 9178 if (isread) { 9179 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9180 SCP_RCD) != 0) 9181 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9182 } else { 9183 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9184 SCP_WCE) == 0) 9185 flags |= CTL_LLF_FUA; 9186 } 9187 9188 lbalen = (struct ctl_lba_len_flags *) 9189 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9190 lbalen->lba = lba; 9191 lbalen->len = num_blocks; 9192 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9193 9194 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9195 ctsio->kern_rel_offset = 0; 9196 9197 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9198 9199 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9200 9201 return (retval); 9202} 9203 9204static int 9205ctl_cnw_cont(union ctl_io *io) 9206{ 9207 struct ctl_scsiio *ctsio; 9208 struct ctl_lun *lun; 9209 struct ctl_lba_len_flags *lbalen; 9210 int retval; 9211 9212 ctsio = &io->scsiio; 9213 ctsio->io_hdr.status = CTL_STATUS_NONE; 9214 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9215 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9216 lbalen = (struct ctl_lba_len_flags *) 9217 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9218 lbalen->flags &= ~CTL_LLF_COMPARE; 9219 lbalen->flags |= CTL_LLF_WRITE; 9220 9221 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9222 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9223 return (retval); 9224} 9225 9226int 9227ctl_cnw(struct ctl_scsiio *ctsio) 9228{ 9229 struct ctl_lun *lun; 9230 struct ctl_lba_len_flags *lbalen; 9231 uint64_t lba; 9232 uint32_t num_blocks; 9233 int flags, retval; 9234 9235 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9236 9237 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9238 9239 flags = 0; 9240 retval = CTL_RETVAL_COMPLETE; 9241 9242 switch (ctsio->cdb[0]) { 9243 case COMPARE_AND_WRITE: { 9244 struct scsi_compare_and_write *cdb; 9245 9246 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9247 if (cdb->byte2 & SRW10_FUA) 9248 flags |= CTL_LLF_FUA; 9249 if (cdb->byte2 & SRW10_DPO) 9250 flags |= CTL_LLF_DPO; 9251 lba = scsi_8btou64(cdb->addr); 9252 num_blocks = cdb->length; 9253 break; 9254 } 9255 default: 9256 /* 9257 * We got a command we don't support. This shouldn't 9258 * happen, commands should be filtered out above us. 9259 */ 9260 ctl_set_invalid_opcode(ctsio); 9261 ctl_done((union ctl_io *)ctsio); 9262 9263 return (CTL_RETVAL_COMPLETE); 9264 break; /* NOTREACHED */ 9265 } 9266 9267 /* 9268 * The first check is to make sure we're in bounds, the second 9269 * check is to catch wrap-around problems. If the lba + num blocks 9270 * is less than the lba, then we've wrapped around and the block 9271 * range is invalid anyway. 9272 */ 9273 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9274 || ((lba + num_blocks) < lba)) { 9275 ctl_set_lba_out_of_range(ctsio); 9276 ctl_done((union ctl_io *)ctsio); 9277 return (CTL_RETVAL_COMPLETE); 9278 } 9279 9280 /* 9281 * According to SBC-3, a transfer length of 0 is not an error. 9282 */ 9283 if (num_blocks == 0) { 9284 ctl_set_success(ctsio); 9285 ctl_done((union ctl_io *)ctsio); 9286 return (CTL_RETVAL_COMPLETE); 9287 } 9288 9289 /* Set FUA if write cache is disabled. */ 9290 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9291 SCP_WCE) == 0) 9292 flags |= CTL_LLF_FUA; 9293 9294 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9295 ctsio->kern_rel_offset = 0; 9296 9297 /* 9298 * Set the IO_CONT flag, so that if this I/O gets passed to 9299 * ctl_data_submit_done(), it'll get passed back to 9300 * ctl_ctl_cnw_cont() for further processing. 9301 */ 9302 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9303 ctsio->io_cont = ctl_cnw_cont; 9304 9305 lbalen = (struct ctl_lba_len_flags *) 9306 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9307 lbalen->lba = lba; 9308 lbalen->len = num_blocks; 9309 lbalen->flags = CTL_LLF_COMPARE | flags; 9310 9311 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9312 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9313 return (retval); 9314} 9315 9316int 9317ctl_verify(struct ctl_scsiio *ctsio) 9318{ 9319 struct ctl_lun *lun; 9320 struct ctl_lba_len_flags *lbalen; 9321 uint64_t lba; 9322 uint32_t num_blocks; 9323 int bytchk, flags; 9324 int retval; 9325 9326 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9327 9328 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9329 9330 bytchk = 0; 9331 flags = CTL_LLF_FUA; 9332 retval = CTL_RETVAL_COMPLETE; 9333 9334 switch (ctsio->cdb[0]) { 9335 case VERIFY_10: { 9336 struct scsi_verify_10 *cdb; 9337 9338 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9339 if (cdb->byte2 & SVFY_BYTCHK) 9340 bytchk = 1; 9341 if (cdb->byte2 & SVFY_DPO) 9342 flags |= CTL_LLF_DPO; 9343 lba = scsi_4btoul(cdb->addr); 9344 num_blocks = scsi_2btoul(cdb->length); 9345 break; 9346 } 9347 case VERIFY_12: { 9348 struct scsi_verify_12 *cdb; 9349 9350 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9351 if (cdb->byte2 & SVFY_BYTCHK) 9352 bytchk = 1; 9353 if (cdb->byte2 & SVFY_DPO) 9354 flags |= CTL_LLF_DPO; 9355 lba = scsi_4btoul(cdb->addr); 9356 num_blocks = scsi_4btoul(cdb->length); 9357 break; 9358 } 9359 case VERIFY_16: { 9360 struct scsi_rw_16 *cdb; 9361 9362 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9363 if (cdb->byte2 & SVFY_BYTCHK) 9364 bytchk = 1; 9365 if (cdb->byte2 & SVFY_DPO) 9366 flags |= CTL_LLF_DPO; 9367 lba = scsi_8btou64(cdb->addr); 9368 num_blocks = scsi_4btoul(cdb->length); 9369 break; 9370 } 9371 default: 9372 /* 9373 * We got a command we don't support. This shouldn't 9374 * happen, commands should be filtered out above us. 9375 */ 9376 ctl_set_invalid_opcode(ctsio); 9377 ctl_done((union ctl_io *)ctsio); 9378 return (CTL_RETVAL_COMPLETE); 9379 } 9380 9381 /* 9382 * The first check is to make sure we're in bounds, the second 9383 * check is to catch wrap-around problems. If the lba + num blocks 9384 * is less than the lba, then we've wrapped around and the block 9385 * range is invalid anyway. 9386 */ 9387 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9388 || ((lba + num_blocks) < lba)) { 9389 ctl_set_lba_out_of_range(ctsio); 9390 ctl_done((union ctl_io *)ctsio); 9391 return (CTL_RETVAL_COMPLETE); 9392 } 9393 9394 /* 9395 * According to SBC-3, a transfer length of 0 is not an error. 9396 */ 9397 if (num_blocks == 0) { 9398 ctl_set_success(ctsio); 9399 ctl_done((union ctl_io *)ctsio); 9400 return (CTL_RETVAL_COMPLETE); 9401 } 9402 9403 lbalen = (struct ctl_lba_len_flags *) 9404 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9405 lbalen->lba = lba; 9406 lbalen->len = num_blocks; 9407 if (bytchk) { 9408 lbalen->flags = CTL_LLF_COMPARE | flags; 9409 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9410 } else { 9411 lbalen->flags = CTL_LLF_VERIFY | flags; 9412 ctsio->kern_total_len = 0; 9413 } 9414 ctsio->kern_rel_offset = 0; 9415 9416 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9417 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9418 return (retval); 9419} 9420 9421int 9422ctl_report_luns(struct ctl_scsiio *ctsio) 9423{ 9424 struct scsi_report_luns *cdb; 9425 struct scsi_report_luns_data *lun_data; 9426 struct ctl_lun *lun, *request_lun; 9427 int num_luns, retval; 9428 uint32_t alloc_len, lun_datalen; 9429 int num_filled, well_known; 9430 uint32_t initidx, targ_lun_id, lun_id; 9431 9432 retval = CTL_RETVAL_COMPLETE; 9433 well_known = 0; 9434 9435 cdb = (struct scsi_report_luns *)ctsio->cdb; 9436 9437 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9438 9439 mtx_lock(&control_softc->ctl_lock); 9440 num_luns = control_softc->num_luns; 9441 mtx_unlock(&control_softc->ctl_lock); 9442 9443 switch (cdb->select_report) { 9444 case RPL_REPORT_DEFAULT: 9445 case RPL_REPORT_ALL: 9446 break; 9447 case RPL_REPORT_WELLKNOWN: 9448 well_known = 1; 9449 num_luns = 0; 9450 break; 9451 default: 9452 ctl_set_invalid_field(ctsio, 9453 /*sks_valid*/ 1, 9454 /*command*/ 1, 9455 /*field*/ 2, 9456 /*bit_valid*/ 0, 9457 /*bit*/ 0); 9458 ctl_done((union ctl_io *)ctsio); 9459 return (retval); 9460 break; /* NOTREACHED */ 9461 } 9462 9463 alloc_len = scsi_4btoul(cdb->length); 9464 /* 9465 * The initiator has to allocate at least 16 bytes for this request, 9466 * so he can at least get the header and the first LUN. Otherwise 9467 * we reject the request (per SPC-3 rev 14, section 6.21). 9468 */ 9469 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9470 sizeof(struct scsi_report_luns_lundata))) { 9471 ctl_set_invalid_field(ctsio, 9472 /*sks_valid*/ 1, 9473 /*command*/ 1, 9474 /*field*/ 6, 9475 /*bit_valid*/ 0, 9476 /*bit*/ 0); 9477 ctl_done((union ctl_io *)ctsio); 9478 return (retval); 9479 } 9480 9481 request_lun = (struct ctl_lun *) 9482 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9483 9484 lun_datalen = sizeof(*lun_data) + 9485 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9486 9487 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9488 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9489 ctsio->kern_sg_entries = 0; 9490 9491 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9492 9493 mtx_lock(&control_softc->ctl_lock); 9494 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9495 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9496 if (lun_id >= CTL_MAX_LUNS) 9497 continue; 9498 lun = control_softc->ctl_luns[lun_id]; 9499 if (lun == NULL) 9500 continue; 9501 9502 if (targ_lun_id <= 0xff) { 9503 /* 9504 * Peripheral addressing method, bus number 0. 9505 */ 9506 lun_data->luns[num_filled].lundata[0] = 9507 RPL_LUNDATA_ATYP_PERIPH; 9508 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9509 num_filled++; 9510 } else if (targ_lun_id <= 0x3fff) { 9511 /* 9512 * Flat addressing method. 9513 */ 9514 lun_data->luns[num_filled].lundata[0] = 9515 RPL_LUNDATA_ATYP_FLAT | 9516 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9517#ifdef OLDCTLHEADERS 9518 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9519 (targ_lun_id & SRLD_BUS_LUN_MASK); 9520#endif 9521 lun_data->luns[num_filled].lundata[1] = 9522#ifdef OLDCTLHEADERS 9523 targ_lun_id >> SRLD_BUS_LUN_BITS; 9524#endif 9525 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9526 num_filled++; 9527 } else { 9528 printf("ctl_report_luns: bogus LUN number %jd, " 9529 "skipping\n", (intmax_t)targ_lun_id); 9530 } 9531 /* 9532 * According to SPC-3, rev 14 section 6.21: 9533 * 9534 * "The execution of a REPORT LUNS command to any valid and 9535 * installed logical unit shall clear the REPORTED LUNS DATA 9536 * HAS CHANGED unit attention condition for all logical 9537 * units of that target with respect to the requesting 9538 * initiator. A valid and installed logical unit is one 9539 * having a PERIPHERAL QUALIFIER of 000b in the standard 9540 * INQUIRY data (see 6.4.2)." 9541 * 9542 * If request_lun is NULL, the LUN this report luns command 9543 * was issued to is either disabled or doesn't exist. In that 9544 * case, we shouldn't clear any pending lun change unit 9545 * attention. 9546 */ 9547 if (request_lun != NULL) { 9548 mtx_lock(&lun->lun_lock); 9549 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9550 mtx_unlock(&lun->lun_lock); 9551 } 9552 } 9553 mtx_unlock(&control_softc->ctl_lock); 9554 9555 /* 9556 * It's quite possible that we've returned fewer LUNs than we allocated 9557 * space for. Trim it. 9558 */ 9559 lun_datalen = sizeof(*lun_data) + 9560 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9561 9562 if (lun_datalen < alloc_len) { 9563 ctsio->residual = alloc_len - lun_datalen; 9564 ctsio->kern_data_len = lun_datalen; 9565 ctsio->kern_total_len = lun_datalen; 9566 } else { 9567 ctsio->residual = 0; 9568 ctsio->kern_data_len = alloc_len; 9569 ctsio->kern_total_len = alloc_len; 9570 } 9571 ctsio->kern_data_resid = 0; 9572 ctsio->kern_rel_offset = 0; 9573 ctsio->kern_sg_entries = 0; 9574 9575 /* 9576 * We set this to the actual data length, regardless of how much 9577 * space we actually have to return results. If the user looks at 9578 * this value, he'll know whether or not he allocated enough space 9579 * and reissue the command if necessary. We don't support well 9580 * known logical units, so if the user asks for that, return none. 9581 */ 9582 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9583 9584 /* 9585 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9586 * this request. 9587 */ 9588 ctsio->scsi_status = SCSI_STATUS_OK; 9589 9590 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9591 ctsio->be_move_done = ctl_config_move_done; 9592 ctl_datamove((union ctl_io *)ctsio); 9593 9594 return (retval); 9595} 9596 9597int 9598ctl_request_sense(struct ctl_scsiio *ctsio) 9599{ 9600 struct scsi_request_sense *cdb; 9601 struct scsi_sense_data *sense_ptr; 9602 struct ctl_lun *lun; 9603 uint32_t initidx; 9604 int have_error; 9605 scsi_sense_data_type sense_format; 9606 9607 cdb = (struct scsi_request_sense *)ctsio->cdb; 9608 9609 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9610 9611 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9612 9613 /* 9614 * Determine which sense format the user wants. 9615 */ 9616 if (cdb->byte2 & SRS_DESC) 9617 sense_format = SSD_TYPE_DESC; 9618 else 9619 sense_format = SSD_TYPE_FIXED; 9620 9621 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9622 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9623 ctsio->kern_sg_entries = 0; 9624 9625 /* 9626 * struct scsi_sense_data, which is currently set to 256 bytes, is 9627 * larger than the largest allowed value for the length field in the 9628 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9629 */ 9630 ctsio->residual = 0; 9631 ctsio->kern_data_len = cdb->length; 9632 ctsio->kern_total_len = cdb->length; 9633 9634 ctsio->kern_data_resid = 0; 9635 ctsio->kern_rel_offset = 0; 9636 ctsio->kern_sg_entries = 0; 9637 9638 /* 9639 * If we don't have a LUN, we don't have any pending sense. 9640 */ 9641 if (lun == NULL) 9642 goto no_sense; 9643 9644 have_error = 0; 9645 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9646 /* 9647 * Check for pending sense, and then for pending unit attentions. 9648 * Pending sense gets returned first, then pending unit attentions. 9649 */ 9650 mtx_lock(&lun->lun_lock); 9651#ifdef CTL_WITH_CA 9652 if (ctl_is_set(lun->have_ca, initidx)) { 9653 scsi_sense_data_type stored_format; 9654 9655 /* 9656 * Check to see which sense format was used for the stored 9657 * sense data. 9658 */ 9659 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9660 9661 /* 9662 * If the user requested a different sense format than the 9663 * one we stored, then we need to convert it to the other 9664 * format. If we're going from descriptor to fixed format 9665 * sense data, we may lose things in translation, depending 9666 * on what options were used. 9667 * 9668 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9669 * for some reason we'll just copy it out as-is. 9670 */ 9671 if ((stored_format == SSD_TYPE_FIXED) 9672 && (sense_format == SSD_TYPE_DESC)) 9673 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9674 &lun->pending_sense[initidx], 9675 (struct scsi_sense_data_desc *)sense_ptr); 9676 else if ((stored_format == SSD_TYPE_DESC) 9677 && (sense_format == SSD_TYPE_FIXED)) 9678 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9679 &lun->pending_sense[initidx], 9680 (struct scsi_sense_data_fixed *)sense_ptr); 9681 else 9682 memcpy(sense_ptr, &lun->pending_sense[initidx], 9683 ctl_min(sizeof(*sense_ptr), 9684 sizeof(lun->pending_sense[initidx]))); 9685 9686 ctl_clear_mask(lun->have_ca, initidx); 9687 have_error = 1; 9688 } else 9689#endif 9690 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9691 ctl_ua_type ua_type; 9692 9693 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9694 sense_ptr, sense_format); 9695 if (ua_type != CTL_UA_NONE) 9696 have_error = 1; 9697 } 9698 mtx_unlock(&lun->lun_lock); 9699 9700 /* 9701 * We already have a pending error, return it. 9702 */ 9703 if (have_error != 0) { 9704 /* 9705 * We report the SCSI status as OK, since the status of the 9706 * request sense command itself is OK. 9707 */ 9708 ctsio->scsi_status = SCSI_STATUS_OK; 9709 9710 /* 9711 * We report 0 for the sense length, because we aren't doing 9712 * autosense in this case. We're reporting sense as 9713 * parameter data. 9714 */ 9715 ctsio->sense_len = 0; 9716 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9717 ctsio->be_move_done = ctl_config_move_done; 9718 ctl_datamove((union ctl_io *)ctsio); 9719 9720 return (CTL_RETVAL_COMPLETE); 9721 } 9722 9723no_sense: 9724 9725 /* 9726 * No sense information to report, so we report that everything is 9727 * okay. 9728 */ 9729 ctl_set_sense_data(sense_ptr, 9730 lun, 9731 sense_format, 9732 /*current_error*/ 1, 9733 /*sense_key*/ SSD_KEY_NO_SENSE, 9734 /*asc*/ 0x00, 9735 /*ascq*/ 0x00, 9736 SSD_ELEM_NONE); 9737 9738 ctsio->scsi_status = SCSI_STATUS_OK; 9739 9740 /* 9741 * We report 0 for the sense length, because we aren't doing 9742 * autosense in this case. We're reporting sense as parameter data. 9743 */ 9744 ctsio->sense_len = 0; 9745 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9746 ctsio->be_move_done = ctl_config_move_done; 9747 ctl_datamove((union ctl_io *)ctsio); 9748 9749 return (CTL_RETVAL_COMPLETE); 9750} 9751 9752int 9753ctl_tur(struct ctl_scsiio *ctsio) 9754{ 9755 struct ctl_lun *lun; 9756 9757 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9758 9759 CTL_DEBUG_PRINT(("ctl_tur\n")); 9760 9761 if (lun == NULL) 9762 return (EINVAL); 9763 9764 ctsio->scsi_status = SCSI_STATUS_OK; 9765 ctsio->io_hdr.status = CTL_SUCCESS; 9766 9767 ctl_done((union ctl_io *)ctsio); 9768 9769 return (CTL_RETVAL_COMPLETE); 9770} 9771 9772#ifdef notyet 9773static int 9774ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9775{ 9776 9777} 9778#endif 9779 9780static int 9781ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9782{ 9783 struct scsi_vpd_supported_pages *pages; 9784 int sup_page_size; 9785 struct ctl_lun *lun; 9786 9787 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9788 9789 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9790 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9791 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9792 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9793 ctsio->kern_sg_entries = 0; 9794 9795 if (sup_page_size < alloc_len) { 9796 ctsio->residual = alloc_len - sup_page_size; 9797 ctsio->kern_data_len = sup_page_size; 9798 ctsio->kern_total_len = sup_page_size; 9799 } else { 9800 ctsio->residual = 0; 9801 ctsio->kern_data_len = alloc_len; 9802 ctsio->kern_total_len = alloc_len; 9803 } 9804 ctsio->kern_data_resid = 0; 9805 ctsio->kern_rel_offset = 0; 9806 ctsio->kern_sg_entries = 0; 9807 9808 /* 9809 * The control device is always connected. The disk device, on the 9810 * other hand, may not be online all the time. Need to change this 9811 * to figure out whether the disk device is actually online or not. 9812 */ 9813 if (lun != NULL) 9814 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9815 lun->be_lun->lun_type; 9816 else 9817 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9818 9819 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9820 /* Supported VPD pages */ 9821 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9822 /* Serial Number */ 9823 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9824 /* Device Identification */ 9825 pages->page_list[2] = SVPD_DEVICE_ID; 9826 /* Extended INQUIRY Data */ 9827 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9828 /* Mode Page Policy */ 9829 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9830 /* SCSI Ports */ 9831 pages->page_list[5] = SVPD_SCSI_PORTS; 9832 /* Third-party Copy */ 9833 pages->page_list[6] = SVPD_SCSI_TPC; 9834 /* Block limits */ 9835 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9836 /* Block Device Characteristics */ 9837 pages->page_list[8] = SVPD_BDC; 9838 /* Logical Block Provisioning */ 9839 pages->page_list[9] = SVPD_LBP; 9840 9841 ctsio->scsi_status = SCSI_STATUS_OK; 9842 9843 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9844 ctsio->be_move_done = ctl_config_move_done; 9845 ctl_datamove((union ctl_io *)ctsio); 9846 9847 return (CTL_RETVAL_COMPLETE); 9848} 9849 9850static int 9851ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9852{ 9853 struct scsi_vpd_unit_serial_number *sn_ptr; 9854 struct ctl_lun *lun; 9855 9856 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9857 9858 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9859 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9860 ctsio->kern_sg_entries = 0; 9861 9862 if (sizeof(*sn_ptr) < alloc_len) { 9863 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9864 ctsio->kern_data_len = sizeof(*sn_ptr); 9865 ctsio->kern_total_len = sizeof(*sn_ptr); 9866 } else { 9867 ctsio->residual = 0; 9868 ctsio->kern_data_len = alloc_len; 9869 ctsio->kern_total_len = alloc_len; 9870 } 9871 ctsio->kern_data_resid = 0; 9872 ctsio->kern_rel_offset = 0; 9873 ctsio->kern_sg_entries = 0; 9874 9875 /* 9876 * The control device is always connected. The disk device, on the 9877 * other hand, may not be online all the time. Need to change this 9878 * to figure out whether the disk device is actually online or not. 9879 */ 9880 if (lun != NULL) 9881 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9882 lun->be_lun->lun_type; 9883 else 9884 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9885 9886 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9887 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9888 /* 9889 * If we don't have a LUN, we just leave the serial number as 9890 * all spaces. 9891 */ 9892 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9893 if (lun != NULL) { 9894 strncpy((char *)sn_ptr->serial_num, 9895 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9896 } 9897 ctsio->scsi_status = SCSI_STATUS_OK; 9898 9899 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9900 ctsio->be_move_done = ctl_config_move_done; 9901 ctl_datamove((union ctl_io *)ctsio); 9902 9903 return (CTL_RETVAL_COMPLETE); 9904} 9905 9906 9907static int 9908ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9909{ 9910 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9911 struct ctl_lun *lun; 9912 int data_len; 9913 9914 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9915 9916 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9917 sizeof(struct scsi_vpd_mode_page_policy_descr); 9918 9919 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9920 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9921 ctsio->kern_sg_entries = 0; 9922 9923 if (data_len < alloc_len) { 9924 ctsio->residual = alloc_len - data_len; 9925 ctsio->kern_data_len = data_len; 9926 ctsio->kern_total_len = data_len; 9927 } else { 9928 ctsio->residual = 0; 9929 ctsio->kern_data_len = alloc_len; 9930 ctsio->kern_total_len = alloc_len; 9931 } 9932 ctsio->kern_data_resid = 0; 9933 ctsio->kern_rel_offset = 0; 9934 ctsio->kern_sg_entries = 0; 9935 9936 /* 9937 * The control device is always connected. The disk device, on the 9938 * other hand, may not be online all the time. 9939 */ 9940 if (lun != NULL) 9941 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9942 lun->be_lun->lun_type; 9943 else 9944 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9945 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9946 eid_ptr->page_length = data_len - 4; 9947 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9948 eid_ptr->flags3 = SVPD_EID_V_SUP; 9949 9950 ctsio->scsi_status = SCSI_STATUS_OK; 9951 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9952 ctsio->be_move_done = ctl_config_move_done; 9953 ctl_datamove((union ctl_io *)ctsio); 9954 9955 return (CTL_RETVAL_COMPLETE); 9956} 9957 9958static int 9959ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9960{ 9961 struct scsi_vpd_mode_page_policy *mpp_ptr; 9962 struct ctl_lun *lun; 9963 int data_len; 9964 9965 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9966 9967 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9968 sizeof(struct scsi_vpd_mode_page_policy_descr); 9969 9970 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9971 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9972 ctsio->kern_sg_entries = 0; 9973 9974 if (data_len < alloc_len) { 9975 ctsio->residual = alloc_len - data_len; 9976 ctsio->kern_data_len = data_len; 9977 ctsio->kern_total_len = data_len; 9978 } else { 9979 ctsio->residual = 0; 9980 ctsio->kern_data_len = alloc_len; 9981 ctsio->kern_total_len = alloc_len; 9982 } 9983 ctsio->kern_data_resid = 0; 9984 ctsio->kern_rel_offset = 0; 9985 ctsio->kern_sg_entries = 0; 9986 9987 /* 9988 * The control device is always connected. The disk device, on the 9989 * other hand, may not be online all the time. 9990 */ 9991 if (lun != NULL) 9992 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9993 lun->be_lun->lun_type; 9994 else 9995 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9996 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9997 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9998 mpp_ptr->descr[0].page_code = 0x3f; 9999 mpp_ptr->descr[0].subpage_code = 0xff; 10000 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10001 10002 ctsio->scsi_status = SCSI_STATUS_OK; 10003 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10004 ctsio->be_move_done = ctl_config_move_done; 10005 ctl_datamove((union ctl_io *)ctsio); 10006 10007 return (CTL_RETVAL_COMPLETE); 10008} 10009 10010static int 10011ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10012{ 10013 struct scsi_vpd_device_id *devid_ptr; 10014 struct scsi_vpd_id_descriptor *desc; 10015 struct ctl_softc *ctl_softc; 10016 struct ctl_lun *lun; 10017 struct ctl_port *port; 10018 int data_len; 10019 uint8_t proto; 10020 10021 ctl_softc = control_softc; 10022 10023 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10024 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10025 10026 data_len = sizeof(struct scsi_vpd_device_id) + 10027 sizeof(struct scsi_vpd_id_descriptor) + 10028 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10029 sizeof(struct scsi_vpd_id_descriptor) + 10030 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10031 if (lun && lun->lun_devid) 10032 data_len += lun->lun_devid->len; 10033 if (port->port_devid) 10034 data_len += port->port_devid->len; 10035 if (port->target_devid) 10036 data_len += port->target_devid->len; 10037 10038 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10039 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10040 ctsio->kern_sg_entries = 0; 10041 10042 if (data_len < alloc_len) { 10043 ctsio->residual = alloc_len - data_len; 10044 ctsio->kern_data_len = data_len; 10045 ctsio->kern_total_len = data_len; 10046 } else { 10047 ctsio->residual = 0; 10048 ctsio->kern_data_len = alloc_len; 10049 ctsio->kern_total_len = alloc_len; 10050 } 10051 ctsio->kern_data_resid = 0; 10052 ctsio->kern_rel_offset = 0; 10053 ctsio->kern_sg_entries = 0; 10054 10055 /* 10056 * The control device is always connected. The disk device, on the 10057 * other hand, may not be online all the time. 10058 */ 10059 if (lun != NULL) 10060 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10061 lun->be_lun->lun_type; 10062 else 10063 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10064 devid_ptr->page_code = SVPD_DEVICE_ID; 10065 scsi_ulto2b(data_len - 4, devid_ptr->length); 10066 10067 if (port->port_type == CTL_PORT_FC) 10068 proto = SCSI_PROTO_FC << 4; 10069 else if (port->port_type == CTL_PORT_ISCSI) 10070 proto = SCSI_PROTO_ISCSI << 4; 10071 else 10072 proto = SCSI_PROTO_SPI << 4; 10073 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10074 10075 /* 10076 * We're using a LUN association here. i.e., this device ID is a 10077 * per-LUN identifier. 10078 */ 10079 if (lun && lun->lun_devid) { 10080 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10081 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10082 lun->lun_devid->len); 10083 } 10084 10085 /* 10086 * This is for the WWPN which is a port association. 10087 */ 10088 if (port->port_devid) { 10089 memcpy(desc, port->port_devid->data, port->port_devid->len); 10090 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10091 port->port_devid->len); 10092 } 10093 10094 /* 10095 * This is for the Relative Target Port(type 4h) identifier 10096 */ 10097 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10098 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10099 SVPD_ID_TYPE_RELTARG; 10100 desc->length = 4; 10101 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10102 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10103 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10104 10105 /* 10106 * This is for the Target Port Group(type 5h) identifier 10107 */ 10108 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10109 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10110 SVPD_ID_TYPE_TPORTGRP; 10111 desc->length = 4; 10112 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10113 &desc->identifier[2]); 10114 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10115 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10116 10117 /* 10118 * This is for the Target identifier 10119 */ 10120 if (port->target_devid) { 10121 memcpy(desc, port->target_devid->data, port->target_devid->len); 10122 } 10123 10124 ctsio->scsi_status = SCSI_STATUS_OK; 10125 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10126 ctsio->be_move_done = ctl_config_move_done; 10127 ctl_datamove((union ctl_io *)ctsio); 10128 10129 return (CTL_RETVAL_COMPLETE); 10130} 10131 10132static int 10133ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10134{ 10135 struct ctl_softc *softc = control_softc; 10136 struct scsi_vpd_scsi_ports *sp; 10137 struct scsi_vpd_port_designation *pd; 10138 struct scsi_vpd_port_designation_cont *pdc; 10139 struct ctl_lun *lun; 10140 struct ctl_port *port; 10141 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10142 int num_target_port_groups, single; 10143 10144 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10145 10146 single = ctl_is_single; 10147 if (single) 10148 num_target_port_groups = 1; 10149 else 10150 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10151 num_target_ports = 0; 10152 iid_len = 0; 10153 id_len = 0; 10154 mtx_lock(&softc->ctl_lock); 10155 STAILQ_FOREACH(port, &softc->port_list, links) { 10156 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10157 continue; 10158 if (lun != NULL && 10159 ctl_map_lun_back(port->targ_port, lun->lun) >= 10160 CTL_MAX_LUNS) 10161 continue; 10162 num_target_ports++; 10163 if (port->init_devid) 10164 iid_len += port->init_devid->len; 10165 if (port->port_devid) 10166 id_len += port->port_devid->len; 10167 } 10168 mtx_unlock(&softc->ctl_lock); 10169 10170 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10171 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10172 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10173 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10174 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10175 ctsio->kern_sg_entries = 0; 10176 10177 if (data_len < alloc_len) { 10178 ctsio->residual = alloc_len - data_len; 10179 ctsio->kern_data_len = data_len; 10180 ctsio->kern_total_len = data_len; 10181 } else { 10182 ctsio->residual = 0; 10183 ctsio->kern_data_len = alloc_len; 10184 ctsio->kern_total_len = alloc_len; 10185 } 10186 ctsio->kern_data_resid = 0; 10187 ctsio->kern_rel_offset = 0; 10188 ctsio->kern_sg_entries = 0; 10189 10190 /* 10191 * The control device is always connected. The disk device, on the 10192 * other hand, may not be online all the time. Need to change this 10193 * to figure out whether the disk device is actually online or not. 10194 */ 10195 if (lun != NULL) 10196 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10197 lun->be_lun->lun_type; 10198 else 10199 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10200 10201 sp->page_code = SVPD_SCSI_PORTS; 10202 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10203 sp->page_length); 10204 pd = &sp->design[0]; 10205 10206 mtx_lock(&softc->ctl_lock); 10207 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10208 pg = 0; 10209 else 10210 pg = 1; 10211 for (g = 0; g < num_target_port_groups; g++) { 10212 STAILQ_FOREACH(port, &softc->port_list, links) { 10213 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10214 continue; 10215 if (lun != NULL && 10216 ctl_map_lun_back(port->targ_port, lun->lun) >= 10217 CTL_MAX_LUNS) 10218 continue; 10219 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10220 scsi_ulto2b(p, pd->relative_port_id); 10221 if (port->init_devid && g == pg) { 10222 iid_len = port->init_devid->len; 10223 memcpy(pd->initiator_transportid, 10224 port->init_devid->data, port->init_devid->len); 10225 } else 10226 iid_len = 0; 10227 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10228 pdc = (struct scsi_vpd_port_designation_cont *) 10229 (&pd->initiator_transportid[iid_len]); 10230 if (port->port_devid && g == pg) { 10231 id_len = port->port_devid->len; 10232 memcpy(pdc->target_port_descriptors, 10233 port->port_devid->data, port->port_devid->len); 10234 } else 10235 id_len = 0; 10236 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10237 pd = (struct scsi_vpd_port_designation *) 10238 ((uint8_t *)pdc->target_port_descriptors + id_len); 10239 } 10240 } 10241 mtx_unlock(&softc->ctl_lock); 10242 10243 ctsio->scsi_status = SCSI_STATUS_OK; 10244 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10245 ctsio->be_move_done = ctl_config_move_done; 10246 ctl_datamove((union ctl_io *)ctsio); 10247 10248 return (CTL_RETVAL_COMPLETE); 10249} 10250 10251static int 10252ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10253{ 10254 struct scsi_vpd_block_limits *bl_ptr; 10255 struct ctl_lun *lun; 10256 int bs; 10257 10258 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10259 10260 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10261 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10262 ctsio->kern_sg_entries = 0; 10263 10264 if (sizeof(*bl_ptr) < alloc_len) { 10265 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10266 ctsio->kern_data_len = sizeof(*bl_ptr); 10267 ctsio->kern_total_len = sizeof(*bl_ptr); 10268 } else { 10269 ctsio->residual = 0; 10270 ctsio->kern_data_len = alloc_len; 10271 ctsio->kern_total_len = alloc_len; 10272 } 10273 ctsio->kern_data_resid = 0; 10274 ctsio->kern_rel_offset = 0; 10275 ctsio->kern_sg_entries = 0; 10276 10277 /* 10278 * The control device is always connected. The disk device, on the 10279 * other hand, may not be online all the time. Need to change this 10280 * to figure out whether the disk device is actually online or not. 10281 */ 10282 if (lun != NULL) 10283 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10284 lun->be_lun->lun_type; 10285 else 10286 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10287 10288 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10289 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10290 bl_ptr->max_cmp_write_len = 0xff; 10291 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10292 if (lun != NULL) { 10293 bs = lun->be_lun->blocksize; 10294 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10295 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10296 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10297 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10298 if (lun->be_lun->pblockexp != 0) { 10299 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10300 bl_ptr->opt_unmap_grain); 10301 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10302 bl_ptr->unmap_grain_align); 10303 } 10304 } 10305 } 10306 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10307 10308 ctsio->scsi_status = SCSI_STATUS_OK; 10309 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10310 ctsio->be_move_done = ctl_config_move_done; 10311 ctl_datamove((union ctl_io *)ctsio); 10312 10313 return (CTL_RETVAL_COMPLETE); 10314} 10315 10316static int 10317ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10318{ 10319 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10320 struct ctl_lun *lun; 10321 10322 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10323 10324 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10325 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10326 ctsio->kern_sg_entries = 0; 10327 10328 if (sizeof(*bdc_ptr) < alloc_len) { 10329 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10330 ctsio->kern_data_len = sizeof(*bdc_ptr); 10331 ctsio->kern_total_len = sizeof(*bdc_ptr); 10332 } else { 10333 ctsio->residual = 0; 10334 ctsio->kern_data_len = alloc_len; 10335 ctsio->kern_total_len = alloc_len; 10336 } 10337 ctsio->kern_data_resid = 0; 10338 ctsio->kern_rel_offset = 0; 10339 ctsio->kern_sg_entries = 0; 10340 10341 /* 10342 * The control device is always connected. The disk device, on the 10343 * other hand, may not be online all the time. Need to change this 10344 * to figure out whether the disk device is actually online or not. 10345 */ 10346 if (lun != NULL) 10347 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10348 lun->be_lun->lun_type; 10349 else 10350 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10351 bdc_ptr->page_code = SVPD_BDC; 10352 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10353 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10354 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10355 10356 ctsio->scsi_status = SCSI_STATUS_OK; 10357 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10358 ctsio->be_move_done = ctl_config_move_done; 10359 ctl_datamove((union ctl_io *)ctsio); 10360 10361 return (CTL_RETVAL_COMPLETE); 10362} 10363 10364static int 10365ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10366{ 10367 struct scsi_vpd_logical_block_prov *lbp_ptr; 10368 struct ctl_lun *lun; 10369 10370 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10371 10372 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10373 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10374 ctsio->kern_sg_entries = 0; 10375 10376 if (sizeof(*lbp_ptr) < alloc_len) { 10377 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10378 ctsio->kern_data_len = sizeof(*lbp_ptr); 10379 ctsio->kern_total_len = sizeof(*lbp_ptr); 10380 } else { 10381 ctsio->residual = 0; 10382 ctsio->kern_data_len = alloc_len; 10383 ctsio->kern_total_len = alloc_len; 10384 } 10385 ctsio->kern_data_resid = 0; 10386 ctsio->kern_rel_offset = 0; 10387 ctsio->kern_sg_entries = 0; 10388 10389 /* 10390 * The control device is always connected. The disk device, on the 10391 * other hand, may not be online all the time. Need to change this 10392 * to figure out whether the disk device is actually online or not. 10393 */ 10394 if (lun != NULL) 10395 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10396 lun->be_lun->lun_type; 10397 else 10398 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10399 10400 lbp_ptr->page_code = SVPD_LBP; 10401 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10402 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10403 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10404 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10405 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10406 } 10407 10408 ctsio->scsi_status = SCSI_STATUS_OK; 10409 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10410 ctsio->be_move_done = ctl_config_move_done; 10411 ctl_datamove((union ctl_io *)ctsio); 10412 10413 return (CTL_RETVAL_COMPLETE); 10414} 10415 10416static int 10417ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10418{ 10419 struct scsi_inquiry *cdb; 10420 struct ctl_lun *lun; 10421 int alloc_len, retval; 10422 10423 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10424 cdb = (struct scsi_inquiry *)ctsio->cdb; 10425 10426 retval = CTL_RETVAL_COMPLETE; 10427 10428 alloc_len = scsi_2btoul(cdb->length); 10429 10430 switch (cdb->page_code) { 10431 case SVPD_SUPPORTED_PAGES: 10432 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10433 break; 10434 case SVPD_UNIT_SERIAL_NUMBER: 10435 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10436 break; 10437 case SVPD_DEVICE_ID: 10438 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10439 break; 10440 case SVPD_EXTENDED_INQUIRY_DATA: 10441 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10442 break; 10443 case SVPD_MODE_PAGE_POLICY: 10444 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10445 break; 10446 case SVPD_SCSI_PORTS: 10447 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10448 break; 10449 case SVPD_SCSI_TPC: 10450 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10451 break; 10452 case SVPD_BLOCK_LIMITS: 10453 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10454 break; 10455 case SVPD_BDC: 10456 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10457 break; 10458 case SVPD_LBP: 10459 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10460 break; 10461 default: 10462 ctl_set_invalid_field(ctsio, 10463 /*sks_valid*/ 1, 10464 /*command*/ 1, 10465 /*field*/ 2, 10466 /*bit_valid*/ 0, 10467 /*bit*/ 0); 10468 ctl_done((union ctl_io *)ctsio); 10469 retval = CTL_RETVAL_COMPLETE; 10470 break; 10471 } 10472 10473 return (retval); 10474} 10475 10476static int 10477ctl_inquiry_std(struct ctl_scsiio *ctsio) 10478{ 10479 struct scsi_inquiry_data *inq_ptr; 10480 struct scsi_inquiry *cdb; 10481 struct ctl_softc *ctl_softc; 10482 struct ctl_lun *lun; 10483 char *val; 10484 uint32_t alloc_len; 10485 ctl_port_type port_type; 10486 10487 ctl_softc = control_softc; 10488 10489 /* 10490 * Figure out whether we're talking to a Fibre Channel port or not. 10491 * We treat the ioctl front end, and any SCSI adapters, as packetized 10492 * SCSI front ends. 10493 */ 10494 port_type = ctl_softc->ctl_ports[ 10495 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10496 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10497 port_type = CTL_PORT_SCSI; 10498 10499 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10500 cdb = (struct scsi_inquiry *)ctsio->cdb; 10501 alloc_len = scsi_2btoul(cdb->length); 10502 10503 /* 10504 * We malloc the full inquiry data size here and fill it 10505 * in. If the user only asks for less, we'll give him 10506 * that much. 10507 */ 10508 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10509 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10510 ctsio->kern_sg_entries = 0; 10511 ctsio->kern_data_resid = 0; 10512 ctsio->kern_rel_offset = 0; 10513 10514 if (sizeof(*inq_ptr) < alloc_len) { 10515 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10516 ctsio->kern_data_len = sizeof(*inq_ptr); 10517 ctsio->kern_total_len = sizeof(*inq_ptr); 10518 } else { 10519 ctsio->residual = 0; 10520 ctsio->kern_data_len = alloc_len; 10521 ctsio->kern_total_len = alloc_len; 10522 } 10523 10524 /* 10525 * If we have a LUN configured, report it as connected. Otherwise, 10526 * report that it is offline or no device is supported, depending 10527 * on the value of inquiry_pq_no_lun. 10528 * 10529 * According to the spec (SPC-4 r34), the peripheral qualifier 10530 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10531 * 10532 * "A peripheral device having the specified peripheral device type 10533 * is not connected to this logical unit. However, the device 10534 * server is capable of supporting the specified peripheral device 10535 * type on this logical unit." 10536 * 10537 * According to the same spec, the peripheral qualifier 10538 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10539 * 10540 * "The device server is not capable of supporting a peripheral 10541 * device on this logical unit. For this peripheral qualifier the 10542 * peripheral device type shall be set to 1Fh. All other peripheral 10543 * device type values are reserved for this peripheral qualifier." 10544 * 10545 * Given the text, it would seem that we probably want to report that 10546 * the LUN is offline here. There is no LUN connected, but we can 10547 * support a LUN at the given LUN number. 10548 * 10549 * In the real world, though, it sounds like things are a little 10550 * different: 10551 * 10552 * - Linux, when presented with a LUN with the offline peripheral 10553 * qualifier, will create an sg driver instance for it. So when 10554 * you attach it to CTL, you wind up with a ton of sg driver 10555 * instances. (One for every LUN that Linux bothered to probe.) 10556 * Linux does this despite the fact that it issues a REPORT LUNs 10557 * to LUN 0 to get the inventory of supported LUNs. 10558 * 10559 * - There is other anecdotal evidence (from Emulex folks) about 10560 * arrays that use the offline peripheral qualifier for LUNs that 10561 * are on the "passive" path in an active/passive array. 10562 * 10563 * So the solution is provide a hopefully reasonable default 10564 * (return bad/no LUN) and allow the user to change the behavior 10565 * with a tunable/sysctl variable. 10566 */ 10567 if (lun != NULL) 10568 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10569 lun->be_lun->lun_type; 10570 else if (ctl_softc->inquiry_pq_no_lun == 0) 10571 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10572 else 10573 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10574 10575 /* RMB in byte 2 is 0 */ 10576 inq_ptr->version = SCSI_REV_SPC4; 10577 10578 /* 10579 * According to SAM-3, even if a device only supports a single 10580 * level of LUN addressing, it should still set the HISUP bit: 10581 * 10582 * 4.9.1 Logical unit numbers overview 10583 * 10584 * All logical unit number formats described in this standard are 10585 * hierarchical in structure even when only a single level in that 10586 * hierarchy is used. The HISUP bit shall be set to one in the 10587 * standard INQUIRY data (see SPC-2) when any logical unit number 10588 * format described in this standard is used. Non-hierarchical 10589 * formats are outside the scope of this standard. 10590 * 10591 * Therefore we set the HiSup bit here. 10592 * 10593 * The reponse format is 2, per SPC-3. 10594 */ 10595 inq_ptr->response_format = SID_HiSup | 2; 10596 10597 inq_ptr->additional_length = 10598 offsetof(struct scsi_inquiry_data, vendor_specific1) - 10599 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10600 CTL_DEBUG_PRINT(("additional_length = %d\n", 10601 inq_ptr->additional_length)); 10602 10603 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10604 /* 16 bit addressing */ 10605 if (port_type == CTL_PORT_SCSI) 10606 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10607 /* XXX set the SID_MultiP bit here if we're actually going to 10608 respond on multiple ports */ 10609 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10610 10611 /* 16 bit data bus, synchronous transfers */ 10612 if (port_type == CTL_PORT_SCSI) 10613 inq_ptr->flags = SID_WBus16 | SID_Sync; 10614 /* 10615 * XXX KDM do we want to support tagged queueing on the control 10616 * device at all? 10617 */ 10618 if ((lun == NULL) 10619 || (lun->be_lun->lun_type != T_PROCESSOR)) 10620 inq_ptr->flags |= SID_CmdQue; 10621 /* 10622 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10623 * We have 8 bytes for the vendor name, and 16 bytes for the device 10624 * name and 4 bytes for the revision. 10625 */ 10626 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10627 "vendor")) == NULL) { 10628 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10629 } else { 10630 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10631 strncpy(inq_ptr->vendor, val, 10632 min(sizeof(inq_ptr->vendor), strlen(val))); 10633 } 10634 if (lun == NULL) { 10635 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10636 sizeof(inq_ptr->product)); 10637 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10638 switch (lun->be_lun->lun_type) { 10639 case T_DIRECT: 10640 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10641 sizeof(inq_ptr->product)); 10642 break; 10643 case T_PROCESSOR: 10644 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10645 sizeof(inq_ptr->product)); 10646 break; 10647 default: 10648 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10649 sizeof(inq_ptr->product)); 10650 break; 10651 } 10652 } else { 10653 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10654 strncpy(inq_ptr->product, val, 10655 min(sizeof(inq_ptr->product), strlen(val))); 10656 } 10657 10658 /* 10659 * XXX make this a macro somewhere so it automatically gets 10660 * incremented when we make changes. 10661 */ 10662 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10663 "revision")) == NULL) { 10664 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10665 } else { 10666 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10667 strncpy(inq_ptr->revision, val, 10668 min(sizeof(inq_ptr->revision), strlen(val))); 10669 } 10670 10671 /* 10672 * For parallel SCSI, we support double transition and single 10673 * transition clocking. We also support QAS (Quick Arbitration 10674 * and Selection) and Information Unit transfers on both the 10675 * control and array devices. 10676 */ 10677 if (port_type == CTL_PORT_SCSI) 10678 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10679 SID_SPI_IUS; 10680 10681 /* SAM-5 (no version claimed) */ 10682 scsi_ulto2b(0x00A0, inq_ptr->version1); 10683 /* SPC-4 (no version claimed) */ 10684 scsi_ulto2b(0x0460, inq_ptr->version2); 10685 if (port_type == CTL_PORT_FC) { 10686 /* FCP-2 ANSI INCITS.350:2003 */ 10687 scsi_ulto2b(0x0917, inq_ptr->version3); 10688 } else if (port_type == CTL_PORT_SCSI) { 10689 /* SPI-4 ANSI INCITS.362:200x */ 10690 scsi_ulto2b(0x0B56, inq_ptr->version3); 10691 } else if (port_type == CTL_PORT_ISCSI) { 10692 /* iSCSI (no version claimed) */ 10693 scsi_ulto2b(0x0960, inq_ptr->version3); 10694 } else if (port_type == CTL_PORT_SAS) { 10695 /* SAS (no version claimed) */ 10696 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10697 } 10698 10699 if (lun == NULL) { 10700 /* SBC-3 (no version claimed) */ 10701 scsi_ulto2b(0x04C0, inq_ptr->version4); 10702 } else { 10703 switch (lun->be_lun->lun_type) { 10704 case T_DIRECT: 10705 /* SBC-3 (no version claimed) */ 10706 scsi_ulto2b(0x04C0, inq_ptr->version4); 10707 break; 10708 case T_PROCESSOR: 10709 default: 10710 break; 10711 } 10712 } 10713 10714 ctsio->scsi_status = SCSI_STATUS_OK; 10715 if (ctsio->kern_data_len > 0) { 10716 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10717 ctsio->be_move_done = ctl_config_move_done; 10718 ctl_datamove((union ctl_io *)ctsio); 10719 } else { 10720 ctsio->io_hdr.status = CTL_SUCCESS; 10721 ctl_done((union ctl_io *)ctsio); 10722 } 10723 10724 return (CTL_RETVAL_COMPLETE); 10725} 10726 10727int 10728ctl_inquiry(struct ctl_scsiio *ctsio) 10729{ 10730 struct scsi_inquiry *cdb; 10731 int retval; 10732 10733 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10734 10735 cdb = (struct scsi_inquiry *)ctsio->cdb; 10736 if (cdb->byte2 & SI_EVPD) 10737 retval = ctl_inquiry_evpd(ctsio); 10738 else if (cdb->page_code == 0) 10739 retval = ctl_inquiry_std(ctsio); 10740 else { 10741 ctl_set_invalid_field(ctsio, 10742 /*sks_valid*/ 1, 10743 /*command*/ 1, 10744 /*field*/ 2, 10745 /*bit_valid*/ 0, 10746 /*bit*/ 0); 10747 ctl_done((union ctl_io *)ctsio); 10748 return (CTL_RETVAL_COMPLETE); 10749 } 10750 10751 return (retval); 10752} 10753 10754/* 10755 * For known CDB types, parse the LBA and length. 10756 */ 10757static int 10758ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10759{ 10760 if (io->io_hdr.io_type != CTL_IO_SCSI) 10761 return (1); 10762 10763 switch (io->scsiio.cdb[0]) { 10764 case COMPARE_AND_WRITE: { 10765 struct scsi_compare_and_write *cdb; 10766 10767 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10768 10769 *lba = scsi_8btou64(cdb->addr); 10770 *len = cdb->length; 10771 break; 10772 } 10773 case READ_6: 10774 case WRITE_6: { 10775 struct scsi_rw_6 *cdb; 10776 10777 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10778 10779 *lba = scsi_3btoul(cdb->addr); 10780 /* only 5 bits are valid in the most significant address byte */ 10781 *lba &= 0x1fffff; 10782 *len = cdb->length; 10783 break; 10784 } 10785 case READ_10: 10786 case WRITE_10: { 10787 struct scsi_rw_10 *cdb; 10788 10789 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10790 10791 *lba = scsi_4btoul(cdb->addr); 10792 *len = scsi_2btoul(cdb->length); 10793 break; 10794 } 10795 case WRITE_VERIFY_10: { 10796 struct scsi_write_verify_10 *cdb; 10797 10798 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10799 10800 *lba = scsi_4btoul(cdb->addr); 10801 *len = scsi_2btoul(cdb->length); 10802 break; 10803 } 10804 case READ_12: 10805 case WRITE_12: { 10806 struct scsi_rw_12 *cdb; 10807 10808 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10809 10810 *lba = scsi_4btoul(cdb->addr); 10811 *len = scsi_4btoul(cdb->length); 10812 break; 10813 } 10814 case WRITE_VERIFY_12: { 10815 struct scsi_write_verify_12 *cdb; 10816 10817 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10818 10819 *lba = scsi_4btoul(cdb->addr); 10820 *len = scsi_4btoul(cdb->length); 10821 break; 10822 } 10823 case READ_16: 10824 case WRITE_16: { 10825 struct scsi_rw_16 *cdb; 10826 10827 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10828 10829 *lba = scsi_8btou64(cdb->addr); 10830 *len = scsi_4btoul(cdb->length); 10831 break; 10832 } 10833 case WRITE_VERIFY_16: { 10834 struct scsi_write_verify_16 *cdb; 10835 10836 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10837 10838 10839 *lba = scsi_8btou64(cdb->addr); 10840 *len = scsi_4btoul(cdb->length); 10841 break; 10842 } 10843 case WRITE_SAME_10: { 10844 struct scsi_write_same_10 *cdb; 10845 10846 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10847 10848 *lba = scsi_4btoul(cdb->addr); 10849 *len = scsi_2btoul(cdb->length); 10850 break; 10851 } 10852 case WRITE_SAME_16: { 10853 struct scsi_write_same_16 *cdb; 10854 10855 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10856 10857 *lba = scsi_8btou64(cdb->addr); 10858 *len = scsi_4btoul(cdb->length); 10859 break; 10860 } 10861 case VERIFY_10: { 10862 struct scsi_verify_10 *cdb; 10863 10864 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10865 10866 *lba = scsi_4btoul(cdb->addr); 10867 *len = scsi_2btoul(cdb->length); 10868 break; 10869 } 10870 case VERIFY_12: { 10871 struct scsi_verify_12 *cdb; 10872 10873 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10874 10875 *lba = scsi_4btoul(cdb->addr); 10876 *len = scsi_4btoul(cdb->length); 10877 break; 10878 } 10879 case VERIFY_16: { 10880 struct scsi_verify_16 *cdb; 10881 10882 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10883 10884 *lba = scsi_8btou64(cdb->addr); 10885 *len = scsi_4btoul(cdb->length); 10886 break; 10887 } 10888 case UNMAP: { 10889 *lba = 0; 10890 *len = UINT64_MAX; 10891 break; 10892 } 10893 default: 10894 return (1); 10895 break; /* NOTREACHED */ 10896 } 10897 10898 return (0); 10899} 10900 10901static ctl_action 10902ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10903{ 10904 uint64_t endlba1, endlba2; 10905 10906 endlba1 = lba1 + len1 - 1; 10907 endlba2 = lba2 + len2 - 1; 10908 10909 if ((endlba1 < lba2) 10910 || (endlba2 < lba1)) 10911 return (CTL_ACTION_PASS); 10912 else 10913 return (CTL_ACTION_BLOCK); 10914} 10915 10916static int 10917ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10918{ 10919 struct ctl_ptr_len_flags *ptrlen; 10920 struct scsi_unmap_desc *buf, *end, *range; 10921 uint64_t lba; 10922 uint32_t len; 10923 10924 /* If not UNMAP -- go other way. */ 10925 if (io->io_hdr.io_type != CTL_IO_SCSI || 10926 io->scsiio.cdb[0] != UNMAP) 10927 return (CTL_ACTION_ERROR); 10928 10929 /* If UNMAP without data -- block and wait for data. */ 10930 ptrlen = (struct ctl_ptr_len_flags *) 10931 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10932 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10933 ptrlen->ptr == NULL) 10934 return (CTL_ACTION_BLOCK); 10935 10936 /* UNMAP with data -- check for collision. */ 10937 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10938 end = buf + ptrlen->len / sizeof(*buf); 10939 for (range = buf; range < end; range++) { 10940 lba = scsi_8btou64(range->lba); 10941 len = scsi_4btoul(range->length); 10942 if ((lba < lba2 + len2) && (lba + len > lba2)) 10943 return (CTL_ACTION_BLOCK); 10944 } 10945 return (CTL_ACTION_PASS); 10946} 10947 10948static ctl_action 10949ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10950{ 10951 uint64_t lba1, lba2; 10952 uint64_t len1, len2; 10953 int retval; 10954 10955 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10956 return (CTL_ACTION_ERROR); 10957 10958 retval = ctl_extent_check_unmap(io2, lba1, len1); 10959 if (retval != CTL_ACTION_ERROR) 10960 return (retval); 10961 10962 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10963 return (CTL_ACTION_ERROR); 10964 10965 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10966} 10967 10968static ctl_action 10969ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10970 union ctl_io *ooa_io) 10971{ 10972 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10973 ctl_serialize_action *serialize_row; 10974 10975 /* 10976 * The initiator attempted multiple untagged commands at the same 10977 * time. Can't do that. 10978 */ 10979 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10980 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10981 && ((pending_io->io_hdr.nexus.targ_port == 10982 ooa_io->io_hdr.nexus.targ_port) 10983 && (pending_io->io_hdr.nexus.initid.id == 10984 ooa_io->io_hdr.nexus.initid.id)) 10985 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10986 return (CTL_ACTION_OVERLAP); 10987 10988 /* 10989 * The initiator attempted to send multiple tagged commands with 10990 * the same ID. (It's fine if different initiators have the same 10991 * tag ID.) 10992 * 10993 * Even if all of those conditions are true, we don't kill the I/O 10994 * if the command ahead of us has been aborted. We won't end up 10995 * sending it to the FETD, and it's perfectly legal to resend a 10996 * command with the same tag number as long as the previous 10997 * instance of this tag number has been aborted somehow. 10998 */ 10999 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11000 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11001 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11002 && ((pending_io->io_hdr.nexus.targ_port == 11003 ooa_io->io_hdr.nexus.targ_port) 11004 && (pending_io->io_hdr.nexus.initid.id == 11005 ooa_io->io_hdr.nexus.initid.id)) 11006 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11007 return (CTL_ACTION_OVERLAP_TAG); 11008 11009 /* 11010 * If we get a head of queue tag, SAM-3 says that we should 11011 * immediately execute it. 11012 * 11013 * What happens if this command would normally block for some other 11014 * reason? e.g. a request sense with a head of queue tag 11015 * immediately after a write. Normally that would block, but this 11016 * will result in its getting executed immediately... 11017 * 11018 * We currently return "pass" instead of "skip", so we'll end up 11019 * going through the rest of the queue to check for overlapped tags. 11020 * 11021 * XXX KDM check for other types of blockage first?? 11022 */ 11023 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11024 return (CTL_ACTION_PASS); 11025 11026 /* 11027 * Ordered tags have to block until all items ahead of them 11028 * have completed. If we get called with an ordered tag, we always 11029 * block, if something else is ahead of us in the queue. 11030 */ 11031 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11032 return (CTL_ACTION_BLOCK); 11033 11034 /* 11035 * Simple tags get blocked until all head of queue and ordered tags 11036 * ahead of them have completed. I'm lumping untagged commands in 11037 * with simple tags here. XXX KDM is that the right thing to do? 11038 */ 11039 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11040 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11041 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11042 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11043 return (CTL_ACTION_BLOCK); 11044 11045 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11046 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11047 11048 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11049 11050 switch (serialize_row[pending_entry->seridx]) { 11051 case CTL_SER_BLOCK: 11052 return (CTL_ACTION_BLOCK); 11053 case CTL_SER_EXTENT: 11054 return (ctl_extent_check(pending_io, ooa_io)); 11055 case CTL_SER_EXTENTOPT: 11056 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11057 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11058 return (ctl_extent_check(pending_io, ooa_io)); 11059 /* FALLTHROUGH */ 11060 case CTL_SER_PASS: 11061 return (CTL_ACTION_PASS); 11062 case CTL_SER_BLOCKOPT: 11063 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11064 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11065 return (CTL_ACTION_BLOCK); 11066 return (CTL_ACTION_PASS); 11067 case CTL_SER_SKIP: 11068 return (CTL_ACTION_SKIP); 11069 default: 11070 panic("invalid serialization value %d", 11071 serialize_row[pending_entry->seridx]); 11072 } 11073 11074 return (CTL_ACTION_ERROR); 11075} 11076 11077/* 11078 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11079 * Assumptions: 11080 * - pending_io is generally either incoming, or on the blocked queue 11081 * - starting I/O is the I/O we want to start the check with. 11082 */ 11083static ctl_action 11084ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11085 union ctl_io *starting_io) 11086{ 11087 union ctl_io *ooa_io; 11088 ctl_action action; 11089 11090 mtx_assert(&lun->lun_lock, MA_OWNED); 11091 11092 /* 11093 * Run back along the OOA queue, starting with the current 11094 * blocked I/O and going through every I/O before it on the 11095 * queue. If starting_io is NULL, we'll just end up returning 11096 * CTL_ACTION_PASS. 11097 */ 11098 for (ooa_io = starting_io; ooa_io != NULL; 11099 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11100 ooa_links)){ 11101 11102 /* 11103 * This routine just checks to see whether 11104 * cur_blocked is blocked by ooa_io, which is ahead 11105 * of it in the queue. It doesn't queue/dequeue 11106 * cur_blocked. 11107 */ 11108 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11109 switch (action) { 11110 case CTL_ACTION_BLOCK: 11111 case CTL_ACTION_OVERLAP: 11112 case CTL_ACTION_OVERLAP_TAG: 11113 case CTL_ACTION_SKIP: 11114 case CTL_ACTION_ERROR: 11115 return (action); 11116 break; /* NOTREACHED */ 11117 case CTL_ACTION_PASS: 11118 break; 11119 default: 11120 panic("invalid action %d", action); 11121 break; /* NOTREACHED */ 11122 } 11123 } 11124 11125 return (CTL_ACTION_PASS); 11126} 11127 11128/* 11129 * Assumptions: 11130 * - An I/O has just completed, and has been removed from the per-LUN OOA 11131 * queue, so some items on the blocked queue may now be unblocked. 11132 */ 11133static int 11134ctl_check_blocked(struct ctl_lun *lun) 11135{ 11136 union ctl_io *cur_blocked, *next_blocked; 11137 11138 mtx_assert(&lun->lun_lock, MA_OWNED); 11139 11140 /* 11141 * Run forward from the head of the blocked queue, checking each 11142 * entry against the I/Os prior to it on the OOA queue to see if 11143 * there is still any blockage. 11144 * 11145 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11146 * with our removing a variable on it while it is traversing the 11147 * list. 11148 */ 11149 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11150 cur_blocked != NULL; cur_blocked = next_blocked) { 11151 union ctl_io *prev_ooa; 11152 ctl_action action; 11153 11154 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11155 blocked_links); 11156 11157 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11158 ctl_ooaq, ooa_links); 11159 11160 /* 11161 * If cur_blocked happens to be the first item in the OOA 11162 * queue now, prev_ooa will be NULL, and the action 11163 * returned will just be CTL_ACTION_PASS. 11164 */ 11165 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11166 11167 switch (action) { 11168 case CTL_ACTION_BLOCK: 11169 /* Nothing to do here, still blocked */ 11170 break; 11171 case CTL_ACTION_OVERLAP: 11172 case CTL_ACTION_OVERLAP_TAG: 11173 /* 11174 * This shouldn't happen! In theory we've already 11175 * checked this command for overlap... 11176 */ 11177 break; 11178 case CTL_ACTION_PASS: 11179 case CTL_ACTION_SKIP: { 11180 struct ctl_softc *softc; 11181 const struct ctl_cmd_entry *entry; 11182 uint32_t initidx; 11183 int isc_retval; 11184 11185 /* 11186 * The skip case shouldn't happen, this transaction 11187 * should have never made it onto the blocked queue. 11188 */ 11189 /* 11190 * This I/O is no longer blocked, we can remove it 11191 * from the blocked queue. Since this is a TAILQ 11192 * (doubly linked list), we can do O(1) removals 11193 * from any place on the list. 11194 */ 11195 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11196 blocked_links); 11197 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11198 11199 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11200 /* 11201 * Need to send IO back to original side to 11202 * run 11203 */ 11204 union ctl_ha_msg msg_info; 11205 11206 msg_info.hdr.original_sc = 11207 cur_blocked->io_hdr.original_sc; 11208 msg_info.hdr.serializing_sc = cur_blocked; 11209 msg_info.hdr.msg_type = CTL_MSG_R2R; 11210 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11211 &msg_info, sizeof(msg_info), 0)) > 11212 CTL_HA_STATUS_SUCCESS) { 11213 printf("CTL:Check Blocked error from " 11214 "ctl_ha_msg_send %d\n", 11215 isc_retval); 11216 } 11217 break; 11218 } 11219 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11220 softc = control_softc; 11221 11222 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11223 11224 /* 11225 * Check this I/O for LUN state changes that may 11226 * have happened while this command was blocked. 11227 * The LUN state may have been changed by a command 11228 * ahead of us in the queue, so we need to re-check 11229 * for any states that can be caused by SCSI 11230 * commands. 11231 */ 11232 if (ctl_scsiio_lun_check(softc, lun, entry, 11233 &cur_blocked->scsiio) == 0) { 11234 cur_blocked->io_hdr.flags |= 11235 CTL_FLAG_IS_WAS_ON_RTR; 11236 ctl_enqueue_rtr(cur_blocked); 11237 } else 11238 ctl_done(cur_blocked); 11239 break; 11240 } 11241 default: 11242 /* 11243 * This probably shouldn't happen -- we shouldn't 11244 * get CTL_ACTION_ERROR, or anything else. 11245 */ 11246 break; 11247 } 11248 } 11249 11250 return (CTL_RETVAL_COMPLETE); 11251} 11252 11253/* 11254 * This routine (with one exception) checks LUN flags that can be set by 11255 * commands ahead of us in the OOA queue. These flags have to be checked 11256 * when a command initially comes in, and when we pull a command off the 11257 * blocked queue and are preparing to execute it. The reason we have to 11258 * check these flags for commands on the blocked queue is that the LUN 11259 * state may have been changed by a command ahead of us while we're on the 11260 * blocked queue. 11261 * 11262 * Ordering is somewhat important with these checks, so please pay 11263 * careful attention to the placement of any new checks. 11264 */ 11265static int 11266ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11267 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11268{ 11269 int retval; 11270 uint32_t residx; 11271 11272 retval = 0; 11273 11274 mtx_assert(&lun->lun_lock, MA_OWNED); 11275 11276 /* 11277 * If this shelf is a secondary shelf controller, we have to reject 11278 * any media access commands. 11279 */ 11280#if 0 11281 /* No longer needed for HA */ 11282 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11283 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11284 ctl_set_lun_standby(ctsio); 11285 retval = 1; 11286 goto bailout; 11287 } 11288#endif 11289 11290 /* 11291 * Check for a reservation conflict. If this command isn't allowed 11292 * even on reserved LUNs, and if this initiator isn't the one who 11293 * reserved us, reject the command with a reservation conflict. 11294 */ 11295 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11296 if ((lun->flags & CTL_LUN_RESERVED) 11297 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11298 if (lun->res_idx != residx) { 11299 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11300 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11301 retval = 1; 11302 goto bailout; 11303 } 11304 } 11305 11306 if ((lun->flags & CTL_LUN_PR_RESERVED) 11307 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11308 /* 11309 * if we aren't registered or it's a res holder type 11310 * reservation and this isn't the res holder then set a 11311 * conflict. 11312 * NOTE: Commands which might be allowed on write exclusive 11313 * type reservations are checked in the particular command 11314 * for a conflict. Read and SSU are the only ones. 11315 */ 11316 if (!lun->per_res[residx].registered 11317 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11318 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11319 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11320 retval = 1; 11321 goto bailout; 11322 } 11323 11324 } 11325 11326 if ((lun->flags & CTL_LUN_OFFLINE) 11327 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11328 ctl_set_lun_not_ready(ctsio); 11329 retval = 1; 11330 goto bailout; 11331 } 11332 11333 /* 11334 * If the LUN is stopped, see if this particular command is allowed 11335 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11336 */ 11337 if ((lun->flags & CTL_LUN_STOPPED) 11338 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11339 /* "Logical unit not ready, initializing cmd. required" */ 11340 ctl_set_lun_stopped(ctsio); 11341 retval = 1; 11342 goto bailout; 11343 } 11344 11345 if ((lun->flags & CTL_LUN_INOPERABLE) 11346 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11347 /* "Medium format corrupted" */ 11348 ctl_set_medium_format_corrupted(ctsio); 11349 retval = 1; 11350 goto bailout; 11351 } 11352 11353bailout: 11354 return (retval); 11355 11356} 11357 11358static void 11359ctl_failover_io(union ctl_io *io, int have_lock) 11360{ 11361 ctl_set_busy(&io->scsiio); 11362 ctl_done(io); 11363} 11364 11365static void 11366ctl_failover(void) 11367{ 11368 struct ctl_lun *lun; 11369 struct ctl_softc *ctl_softc; 11370 union ctl_io *next_io, *pending_io; 11371 union ctl_io *io; 11372 int lun_idx; 11373 int i; 11374 11375 ctl_softc = control_softc; 11376 11377 mtx_lock(&ctl_softc->ctl_lock); 11378 /* 11379 * Remove any cmds from the other SC from the rtr queue. These 11380 * will obviously only be for LUNs for which we're the primary. 11381 * We can't send status or get/send data for these commands. 11382 * Since they haven't been executed yet, we can just remove them. 11383 * We'll either abort them or delete them below, depending on 11384 * which HA mode we're in. 11385 */ 11386#ifdef notyet 11387 mtx_lock(&ctl_softc->queue_lock); 11388 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11389 io != NULL; io = next_io) { 11390 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11391 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11392 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11393 ctl_io_hdr, links); 11394 } 11395 mtx_unlock(&ctl_softc->queue_lock); 11396#endif 11397 11398 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11399 lun = ctl_softc->ctl_luns[lun_idx]; 11400 if (lun==NULL) 11401 continue; 11402 11403 /* 11404 * Processor LUNs are primary on both sides. 11405 * XXX will this always be true? 11406 */ 11407 if (lun->be_lun->lun_type == T_PROCESSOR) 11408 continue; 11409 11410 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11411 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11412 printf("FAILOVER: primary lun %d\n", lun_idx); 11413 /* 11414 * Remove all commands from the other SC. First from the 11415 * blocked queue then from the ooa queue. Once we have 11416 * removed them. Call ctl_check_blocked to see if there 11417 * is anything that can run. 11418 */ 11419 for (io = (union ctl_io *)TAILQ_FIRST( 11420 &lun->blocked_queue); io != NULL; io = next_io) { 11421 11422 next_io = (union ctl_io *)TAILQ_NEXT( 11423 &io->io_hdr, blocked_links); 11424 11425 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11426 TAILQ_REMOVE(&lun->blocked_queue, 11427 &io->io_hdr,blocked_links); 11428 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11429 TAILQ_REMOVE(&lun->ooa_queue, 11430 &io->io_hdr, ooa_links); 11431 11432 ctl_free_io(io); 11433 } 11434 } 11435 11436 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11437 io != NULL; io = next_io) { 11438 11439 next_io = (union ctl_io *)TAILQ_NEXT( 11440 &io->io_hdr, ooa_links); 11441 11442 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11443 11444 TAILQ_REMOVE(&lun->ooa_queue, 11445 &io->io_hdr, 11446 ooa_links); 11447 11448 ctl_free_io(io); 11449 } 11450 } 11451 ctl_check_blocked(lun); 11452 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11453 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11454 11455 printf("FAILOVER: primary lun %d\n", lun_idx); 11456 /* 11457 * Abort all commands from the other SC. We can't 11458 * send status back for them now. These should get 11459 * cleaned up when they are completed or come out 11460 * for a datamove operation. 11461 */ 11462 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11463 io != NULL; io = next_io) { 11464 next_io = (union ctl_io *)TAILQ_NEXT( 11465 &io->io_hdr, ooa_links); 11466 11467 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11468 io->io_hdr.flags |= CTL_FLAG_ABORT; 11469 } 11470 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11471 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11472 11473 printf("FAILOVER: secondary lun %d\n", lun_idx); 11474 11475 lun->flags |= CTL_LUN_PRIMARY_SC; 11476 11477 /* 11478 * We send all I/O that was sent to this controller 11479 * and redirected to the other side back with 11480 * busy status, and have the initiator retry it. 11481 * Figuring out how much data has been transferred, 11482 * etc. and picking up where we left off would be 11483 * very tricky. 11484 * 11485 * XXX KDM need to remove I/O from the blocked 11486 * queue as well! 11487 */ 11488 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11489 &lun->ooa_queue); pending_io != NULL; 11490 pending_io = next_io) { 11491 11492 next_io = (union ctl_io *)TAILQ_NEXT( 11493 &pending_io->io_hdr, ooa_links); 11494 11495 pending_io->io_hdr.flags &= 11496 ~CTL_FLAG_SENT_2OTHER_SC; 11497 11498 if (pending_io->io_hdr.flags & 11499 CTL_FLAG_IO_ACTIVE) { 11500 pending_io->io_hdr.flags |= 11501 CTL_FLAG_FAILOVER; 11502 } else { 11503 ctl_set_busy(&pending_io->scsiio); 11504 ctl_done(pending_io); 11505 } 11506 } 11507 11508 /* 11509 * Build Unit Attention 11510 */ 11511 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11512 lun->pending_ua[i] |= 11513 CTL_UA_ASYM_ACC_CHANGE; 11514 } 11515 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11516 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11517 printf("FAILOVER: secondary lun %d\n", lun_idx); 11518 /* 11519 * if the first io on the OOA is not on the RtR queue 11520 * add it. 11521 */ 11522 lun->flags |= CTL_LUN_PRIMARY_SC; 11523 11524 pending_io = (union ctl_io *)TAILQ_FIRST( 11525 &lun->ooa_queue); 11526 if (pending_io==NULL) { 11527 printf("Nothing on OOA queue\n"); 11528 continue; 11529 } 11530 11531 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11532 if ((pending_io->io_hdr.flags & 11533 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11534 pending_io->io_hdr.flags |= 11535 CTL_FLAG_IS_WAS_ON_RTR; 11536 ctl_enqueue_rtr(pending_io); 11537 } 11538#if 0 11539 else 11540 { 11541 printf("Tag 0x%04x is running\n", 11542 pending_io->scsiio.tag_num); 11543 } 11544#endif 11545 11546 next_io = (union ctl_io *)TAILQ_NEXT( 11547 &pending_io->io_hdr, ooa_links); 11548 for (pending_io=next_io; pending_io != NULL; 11549 pending_io = next_io) { 11550 pending_io->io_hdr.flags &= 11551 ~CTL_FLAG_SENT_2OTHER_SC; 11552 next_io = (union ctl_io *)TAILQ_NEXT( 11553 &pending_io->io_hdr, ooa_links); 11554 if (pending_io->io_hdr.flags & 11555 CTL_FLAG_IS_WAS_ON_RTR) { 11556#if 0 11557 printf("Tag 0x%04x is running\n", 11558 pending_io->scsiio.tag_num); 11559#endif 11560 continue; 11561 } 11562 11563 switch (ctl_check_ooa(lun, pending_io, 11564 (union ctl_io *)TAILQ_PREV( 11565 &pending_io->io_hdr, ctl_ooaq, 11566 ooa_links))) { 11567 11568 case CTL_ACTION_BLOCK: 11569 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11570 &pending_io->io_hdr, 11571 blocked_links); 11572 pending_io->io_hdr.flags |= 11573 CTL_FLAG_BLOCKED; 11574 break; 11575 case CTL_ACTION_PASS: 11576 case CTL_ACTION_SKIP: 11577 pending_io->io_hdr.flags |= 11578 CTL_FLAG_IS_WAS_ON_RTR; 11579 ctl_enqueue_rtr(pending_io); 11580 break; 11581 case CTL_ACTION_OVERLAP: 11582 ctl_set_overlapped_cmd( 11583 (struct ctl_scsiio *)pending_io); 11584 ctl_done(pending_io); 11585 break; 11586 case CTL_ACTION_OVERLAP_TAG: 11587 ctl_set_overlapped_tag( 11588 (struct ctl_scsiio *)pending_io, 11589 pending_io->scsiio.tag_num & 0xff); 11590 ctl_done(pending_io); 11591 break; 11592 case CTL_ACTION_ERROR: 11593 default: 11594 ctl_set_internal_failure( 11595 (struct ctl_scsiio *)pending_io, 11596 0, // sks_valid 11597 0); //retry count 11598 ctl_done(pending_io); 11599 break; 11600 } 11601 } 11602 11603 /* 11604 * Build Unit Attention 11605 */ 11606 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11607 lun->pending_ua[i] |= 11608 CTL_UA_ASYM_ACC_CHANGE; 11609 } 11610 } else { 11611 panic("Unhandled HA mode failover, LUN flags = %#x, " 11612 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11613 } 11614 } 11615 ctl_pause_rtr = 0; 11616 mtx_unlock(&ctl_softc->ctl_lock); 11617} 11618 11619static int 11620ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11621{ 11622 struct ctl_lun *lun; 11623 const struct ctl_cmd_entry *entry; 11624 uint32_t initidx, targ_lun; 11625 int retval; 11626 11627 retval = 0; 11628 11629 lun = NULL; 11630 11631 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11632 if ((targ_lun < CTL_MAX_LUNS) 11633 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11634 lun = ctl_softc->ctl_luns[targ_lun]; 11635 /* 11636 * If the LUN is invalid, pretend that it doesn't exist. 11637 * It will go away as soon as all pending I/O has been 11638 * completed. 11639 */ 11640 if (lun->flags & CTL_LUN_DISABLED) { 11641 lun = NULL; 11642 } else { 11643 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11644 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11645 lun->be_lun; 11646 if (lun->be_lun->lun_type == T_PROCESSOR) { 11647 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11648 } 11649 11650 /* 11651 * Every I/O goes into the OOA queue for a 11652 * particular LUN, and stays there until completion. 11653 */ 11654 mtx_lock(&lun->lun_lock); 11655 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11656 ooa_links); 11657 } 11658 } else { 11659 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11660 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11661 } 11662 11663 /* Get command entry and return error if it is unsuppotyed. */ 11664 entry = ctl_validate_command(ctsio); 11665 if (entry == NULL) { 11666 if (lun) 11667 mtx_unlock(&lun->lun_lock); 11668 return (retval); 11669 } 11670 11671 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11672 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11673 11674 /* 11675 * Check to see whether we can send this command to LUNs that don't 11676 * exist. This should pretty much only be the case for inquiry 11677 * and request sense. Further checks, below, really require having 11678 * a LUN, so we can't really check the command anymore. Just put 11679 * it on the rtr queue. 11680 */ 11681 if (lun == NULL) { 11682 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11683 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11684 ctl_enqueue_rtr((union ctl_io *)ctsio); 11685 return (retval); 11686 } 11687 11688 ctl_set_unsupported_lun(ctsio); 11689 ctl_done((union ctl_io *)ctsio); 11690 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11691 return (retval); 11692 } else { 11693 /* 11694 * Make sure we support this particular command on this LUN. 11695 * e.g., we don't support writes to the control LUN. 11696 */ 11697 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11698 mtx_unlock(&lun->lun_lock); 11699 ctl_set_invalid_opcode(ctsio); 11700 ctl_done((union ctl_io *)ctsio); 11701 return (retval); 11702 } 11703 } 11704 11705 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11706 11707#ifdef CTL_WITH_CA 11708 /* 11709 * If we've got a request sense, it'll clear the contingent 11710 * allegiance condition. Otherwise, if we have a CA condition for 11711 * this initiator, clear it, because it sent down a command other 11712 * than request sense. 11713 */ 11714 if ((ctsio->cdb[0] != REQUEST_SENSE) 11715 && (ctl_is_set(lun->have_ca, initidx))) 11716 ctl_clear_mask(lun->have_ca, initidx); 11717#endif 11718 11719 /* 11720 * If the command has this flag set, it handles its own unit 11721 * attention reporting, we shouldn't do anything. Otherwise we 11722 * check for any pending unit attentions, and send them back to the 11723 * initiator. We only do this when a command initially comes in, 11724 * not when we pull it off the blocked queue. 11725 * 11726 * According to SAM-3, section 5.3.2, the order that things get 11727 * presented back to the host is basically unit attentions caused 11728 * by some sort of reset event, busy status, reservation conflicts 11729 * or task set full, and finally any other status. 11730 * 11731 * One issue here is that some of the unit attentions we report 11732 * don't fall into the "reset" category (e.g. "reported luns data 11733 * has changed"). So reporting it here, before the reservation 11734 * check, may be technically wrong. I guess the only thing to do 11735 * would be to check for and report the reset events here, and then 11736 * check for the other unit attention types after we check for a 11737 * reservation conflict. 11738 * 11739 * XXX KDM need to fix this 11740 */ 11741 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11742 ctl_ua_type ua_type; 11743 11744 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11745 scsi_sense_data_type sense_format; 11746 11747 if (lun != NULL) 11748 sense_format = (lun->flags & 11749 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11750 SSD_TYPE_FIXED; 11751 else 11752 sense_format = SSD_TYPE_FIXED; 11753 11754 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11755 &ctsio->sense_data, sense_format); 11756 if (ua_type != CTL_UA_NONE) { 11757 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11758 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11759 CTL_AUTOSENSE; 11760 ctsio->sense_len = SSD_FULL_SIZE; 11761 mtx_unlock(&lun->lun_lock); 11762 ctl_done((union ctl_io *)ctsio); 11763 return (retval); 11764 } 11765 } 11766 } 11767 11768 11769 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11770 mtx_unlock(&lun->lun_lock); 11771 ctl_done((union ctl_io *)ctsio); 11772 return (retval); 11773 } 11774 11775 /* 11776 * XXX CHD this is where we want to send IO to other side if 11777 * this LUN is secondary on this SC. We will need to make a copy 11778 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11779 * the copy we send as FROM_OTHER. 11780 * We also need to stuff the address of the original IO so we can 11781 * find it easily. Something similar will need be done on the other 11782 * side so when we are done we can find the copy. 11783 */ 11784 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11785 union ctl_ha_msg msg_info; 11786 int isc_retval; 11787 11788 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11789 11790 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11791 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11792#if 0 11793 printf("1. ctsio %p\n", ctsio); 11794#endif 11795 msg_info.hdr.serializing_sc = NULL; 11796 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11797 msg_info.scsi.tag_num = ctsio->tag_num; 11798 msg_info.scsi.tag_type = ctsio->tag_type; 11799 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11800 11801 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11802 11803 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11804 (void *)&msg_info, sizeof(msg_info), 0)) > 11805 CTL_HA_STATUS_SUCCESS) { 11806 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11807 isc_retval); 11808 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11809 } else { 11810#if 0 11811 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11812#endif 11813 } 11814 11815 /* 11816 * XXX KDM this I/O is off the incoming queue, but hasn't 11817 * been inserted on any other queue. We may need to come 11818 * up with a holding queue while we wait for serialization 11819 * so that we have an idea of what we're waiting for from 11820 * the other side. 11821 */ 11822 mtx_unlock(&lun->lun_lock); 11823 return (retval); 11824 } 11825 11826 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11827 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11828 ctl_ooaq, ooa_links))) { 11829 case CTL_ACTION_BLOCK: 11830 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11831 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11832 blocked_links); 11833 mtx_unlock(&lun->lun_lock); 11834 return (retval); 11835 case CTL_ACTION_PASS: 11836 case CTL_ACTION_SKIP: 11837 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11838 mtx_unlock(&lun->lun_lock); 11839 ctl_enqueue_rtr((union ctl_io *)ctsio); 11840 break; 11841 case CTL_ACTION_OVERLAP: 11842 mtx_unlock(&lun->lun_lock); 11843 ctl_set_overlapped_cmd(ctsio); 11844 ctl_done((union ctl_io *)ctsio); 11845 break; 11846 case CTL_ACTION_OVERLAP_TAG: 11847 mtx_unlock(&lun->lun_lock); 11848 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11849 ctl_done((union ctl_io *)ctsio); 11850 break; 11851 case CTL_ACTION_ERROR: 11852 default: 11853 mtx_unlock(&lun->lun_lock); 11854 ctl_set_internal_failure(ctsio, 11855 /*sks_valid*/ 0, 11856 /*retry_count*/ 0); 11857 ctl_done((union ctl_io *)ctsio); 11858 break; 11859 } 11860 return (retval); 11861} 11862 11863const struct ctl_cmd_entry * 11864ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11865{ 11866 const struct ctl_cmd_entry *entry; 11867 int service_action; 11868 11869 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11870 if (sa) 11871 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11872 if (entry->flags & CTL_CMD_FLAG_SA5) { 11873 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11874 entry = &((const struct ctl_cmd_entry *) 11875 entry->execute)[service_action]; 11876 } 11877 return (entry); 11878} 11879 11880const struct ctl_cmd_entry * 11881ctl_validate_command(struct ctl_scsiio *ctsio) 11882{ 11883 const struct ctl_cmd_entry *entry; 11884 int i, sa; 11885 uint8_t diff; 11886 11887 entry = ctl_get_cmd_entry(ctsio, &sa); 11888 if (entry->execute == NULL) { 11889 if (sa) 11890 ctl_set_invalid_field(ctsio, 11891 /*sks_valid*/ 1, 11892 /*command*/ 1, 11893 /*field*/ 1, 11894 /*bit_valid*/ 1, 11895 /*bit*/ 4); 11896 else 11897 ctl_set_invalid_opcode(ctsio); 11898 ctl_done((union ctl_io *)ctsio); 11899 return (NULL); 11900 } 11901 KASSERT(entry->length > 0, 11902 ("Not defined length for command 0x%02x/0x%02x", 11903 ctsio->cdb[0], ctsio->cdb[1])); 11904 for (i = 1; i < entry->length; i++) { 11905 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11906 if (diff == 0) 11907 continue; 11908 ctl_set_invalid_field(ctsio, 11909 /*sks_valid*/ 1, 11910 /*command*/ 1, 11911 /*field*/ i, 11912 /*bit_valid*/ 1, 11913 /*bit*/ fls(diff) - 1); 11914 ctl_done((union ctl_io *)ctsio); 11915 return (NULL); 11916 } 11917 return (entry); 11918} 11919 11920static int 11921ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11922{ 11923 11924 switch (lun_type) { 11925 case T_PROCESSOR: 11926 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11927 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11928 return (0); 11929 break; 11930 case T_DIRECT: 11931 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11932 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11933 return (0); 11934 break; 11935 default: 11936 return (0); 11937 } 11938 return (1); 11939} 11940 11941static int 11942ctl_scsiio(struct ctl_scsiio *ctsio) 11943{ 11944 int retval; 11945 const struct ctl_cmd_entry *entry; 11946 11947 retval = CTL_RETVAL_COMPLETE; 11948 11949 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11950 11951 entry = ctl_get_cmd_entry(ctsio, NULL); 11952 11953 /* 11954 * If this I/O has been aborted, just send it straight to 11955 * ctl_done() without executing it. 11956 */ 11957 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11958 ctl_done((union ctl_io *)ctsio); 11959 goto bailout; 11960 } 11961 11962 /* 11963 * All the checks should have been handled by ctl_scsiio_precheck(). 11964 * We should be clear now to just execute the I/O. 11965 */ 11966 retval = entry->execute(ctsio); 11967 11968bailout: 11969 return (retval); 11970} 11971 11972/* 11973 * Since we only implement one target right now, a bus reset simply resets 11974 * our single target. 11975 */ 11976static int 11977ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11978{ 11979 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11980} 11981 11982static int 11983ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11984 ctl_ua_type ua_type) 11985{ 11986 struct ctl_lun *lun; 11987 int retval; 11988 11989 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11990 union ctl_ha_msg msg_info; 11991 11992 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11993 msg_info.hdr.nexus = io->io_hdr.nexus; 11994 if (ua_type==CTL_UA_TARG_RESET) 11995 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11996 else 11997 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11998 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11999 msg_info.hdr.original_sc = NULL; 12000 msg_info.hdr.serializing_sc = NULL; 12001 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12002 (void *)&msg_info, sizeof(msg_info), 0)) { 12003 } 12004 } 12005 retval = 0; 12006 12007 mtx_lock(&ctl_softc->ctl_lock); 12008 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12009 retval += ctl_lun_reset(lun, io, ua_type); 12010 mtx_unlock(&ctl_softc->ctl_lock); 12011 12012 return (retval); 12013} 12014 12015/* 12016 * The LUN should always be set. The I/O is optional, and is used to 12017 * distinguish between I/Os sent by this initiator, and by other 12018 * initiators. We set unit attention for initiators other than this one. 12019 * SAM-3 is vague on this point. It does say that a unit attention should 12020 * be established for other initiators when a LUN is reset (see section 12021 * 5.7.3), but it doesn't specifically say that the unit attention should 12022 * be established for this particular initiator when a LUN is reset. Here 12023 * is the relevant text, from SAM-3 rev 8: 12024 * 12025 * 5.7.2 When a SCSI initiator port aborts its own tasks 12026 * 12027 * When a SCSI initiator port causes its own task(s) to be aborted, no 12028 * notification that the task(s) have been aborted shall be returned to 12029 * the SCSI initiator port other than the completion response for the 12030 * command or task management function action that caused the task(s) to 12031 * be aborted and notification(s) associated with related effects of the 12032 * action (e.g., a reset unit attention condition). 12033 * 12034 * XXX KDM for now, we're setting unit attention for all initiators. 12035 */ 12036static int 12037ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12038{ 12039 union ctl_io *xio; 12040#if 0 12041 uint32_t initindex; 12042#endif 12043 int i; 12044 12045 mtx_lock(&lun->lun_lock); 12046 /* 12047 * Run through the OOA queue and abort each I/O. 12048 */ 12049#if 0 12050 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12051#endif 12052 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12053 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12054 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12055 } 12056 12057 /* 12058 * This version sets unit attention for every 12059 */ 12060#if 0 12061 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12062 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12063 if (initindex == i) 12064 continue; 12065 lun->pending_ua[i] |= ua_type; 12066 } 12067#endif 12068 12069 /* 12070 * A reset (any kind, really) clears reservations established with 12071 * RESERVE/RELEASE. It does not clear reservations established 12072 * with PERSISTENT RESERVE OUT, but we don't support that at the 12073 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12074 * reservations made with the RESERVE/RELEASE commands, because 12075 * those commands are obsolete in SPC-3. 12076 */ 12077 lun->flags &= ~CTL_LUN_RESERVED; 12078 12079 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12080#ifdef CTL_WITH_CA 12081 ctl_clear_mask(lun->have_ca, i); 12082#endif 12083 lun->pending_ua[i] |= ua_type; 12084 } 12085 mtx_unlock(&lun->lun_lock); 12086 12087 return (0); 12088} 12089 12090static void 12091ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12092 int other_sc) 12093{ 12094 union ctl_io *xio; 12095 12096 mtx_assert(&lun->lun_lock, MA_OWNED); 12097 12098 /* 12099 * Run through the OOA queue and attempt to find the given I/O. 12100 * The target port, initiator ID, tag type and tag number have to 12101 * match the values that we got from the initiator. If we have an 12102 * untagged command to abort, simply abort the first untagged command 12103 * we come to. We only allow one untagged command at a time of course. 12104 */ 12105 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12106 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12107 12108 if ((targ_port == UINT32_MAX || 12109 targ_port == xio->io_hdr.nexus.targ_port) && 12110 (init_id == UINT32_MAX || 12111 init_id == xio->io_hdr.nexus.initid.id)) { 12112 if (targ_port != xio->io_hdr.nexus.targ_port || 12113 init_id != xio->io_hdr.nexus.initid.id) 12114 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12115 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12116 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12117 union ctl_ha_msg msg_info; 12118 12119 msg_info.hdr.nexus = xio->io_hdr.nexus; 12120 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12121 msg_info.task.tag_num = xio->scsiio.tag_num; 12122 msg_info.task.tag_type = xio->scsiio.tag_type; 12123 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12124 msg_info.hdr.original_sc = NULL; 12125 msg_info.hdr.serializing_sc = NULL; 12126 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12127 (void *)&msg_info, sizeof(msg_info), 0); 12128 } 12129 } 12130 } 12131} 12132 12133static int 12134ctl_abort_task_set(union ctl_io *io) 12135{ 12136 struct ctl_softc *softc = control_softc; 12137 struct ctl_lun *lun; 12138 uint32_t targ_lun; 12139 12140 /* 12141 * Look up the LUN. 12142 */ 12143 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12144 mtx_lock(&softc->ctl_lock); 12145 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12146 lun = softc->ctl_luns[targ_lun]; 12147 else { 12148 mtx_unlock(&softc->ctl_lock); 12149 return (1); 12150 } 12151 12152 mtx_lock(&lun->lun_lock); 12153 mtx_unlock(&softc->ctl_lock); 12154 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12155 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12156 io->io_hdr.nexus.initid.id, 12157 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12158 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12159 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12160 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12161 } 12162 mtx_unlock(&lun->lun_lock); 12163 return (0); 12164} 12165 12166static int 12167ctl_i_t_nexus_reset(union ctl_io *io) 12168{ 12169 struct ctl_softc *softc = control_softc; 12170 struct ctl_lun *lun; 12171 uint32_t initindex, residx; 12172 12173 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12174 residx = ctl_get_resindex(&io->io_hdr.nexus); 12175 mtx_lock(&softc->ctl_lock); 12176 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12177 mtx_lock(&lun->lun_lock); 12178 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12179 io->io_hdr.nexus.initid.id, 12180 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12181#ifdef CTL_WITH_CA 12182 ctl_clear_mask(lun->have_ca, initindex); 12183#endif 12184 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12185 lun->flags &= ~CTL_LUN_RESERVED; 12186 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12187 mtx_unlock(&lun->lun_lock); 12188 } 12189 mtx_unlock(&softc->ctl_lock); 12190 return (0); 12191} 12192 12193static int 12194ctl_abort_task(union ctl_io *io) 12195{ 12196 union ctl_io *xio; 12197 struct ctl_lun *lun; 12198 struct ctl_softc *ctl_softc; 12199#if 0 12200 struct sbuf sb; 12201 char printbuf[128]; 12202#endif 12203 int found; 12204 uint32_t targ_lun; 12205 12206 ctl_softc = control_softc; 12207 found = 0; 12208 12209 /* 12210 * Look up the LUN. 12211 */ 12212 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12213 mtx_lock(&ctl_softc->ctl_lock); 12214 if ((targ_lun < CTL_MAX_LUNS) 12215 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12216 lun = ctl_softc->ctl_luns[targ_lun]; 12217 else { 12218 mtx_unlock(&ctl_softc->ctl_lock); 12219 return (1); 12220 } 12221 12222#if 0 12223 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12224 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12225#endif 12226 12227 mtx_lock(&lun->lun_lock); 12228 mtx_unlock(&ctl_softc->ctl_lock); 12229 /* 12230 * Run through the OOA queue and attempt to find the given I/O. 12231 * The target port, initiator ID, tag type and tag number have to 12232 * match the values that we got from the initiator. If we have an 12233 * untagged command to abort, simply abort the first untagged command 12234 * we come to. We only allow one untagged command at a time of course. 12235 */ 12236#if 0 12237 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12238#endif 12239 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12240 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12241#if 0 12242 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12243 12244 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12245 lun->lun, xio->scsiio.tag_num, 12246 xio->scsiio.tag_type, 12247 (xio->io_hdr.blocked_links.tqe_prev 12248 == NULL) ? "" : " BLOCKED", 12249 (xio->io_hdr.flags & 12250 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12251 (xio->io_hdr.flags & 12252 CTL_FLAG_ABORT) ? " ABORT" : "", 12253 (xio->io_hdr.flags & 12254 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12255 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12256 sbuf_finish(&sb); 12257 printf("%s\n", sbuf_data(&sb)); 12258#endif 12259 12260 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12261 && (xio->io_hdr.nexus.initid.id == 12262 io->io_hdr.nexus.initid.id)) { 12263 /* 12264 * If the abort says that the task is untagged, the 12265 * task in the queue must be untagged. Otherwise, 12266 * we just check to see whether the tag numbers 12267 * match. This is because the QLogic firmware 12268 * doesn't pass back the tag type in an abort 12269 * request. 12270 */ 12271#if 0 12272 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12273 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12274 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12275#endif 12276 /* 12277 * XXX KDM we've got problems with FC, because it 12278 * doesn't send down a tag type with aborts. So we 12279 * can only really go by the tag number... 12280 * This may cause problems with parallel SCSI. 12281 * Need to figure that out!! 12282 */ 12283 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12284 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12285 found = 1; 12286 if ((io->io_hdr.flags & 12287 CTL_FLAG_FROM_OTHER_SC) == 0 && 12288 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12289 union ctl_ha_msg msg_info; 12290 12291 io->io_hdr.flags |= 12292 CTL_FLAG_SENT_2OTHER_SC; 12293 msg_info.hdr.nexus = io->io_hdr.nexus; 12294 msg_info.task.task_action = 12295 CTL_TASK_ABORT_TASK; 12296 msg_info.task.tag_num = 12297 io->taskio.tag_num; 12298 msg_info.task.tag_type = 12299 io->taskio.tag_type; 12300 msg_info.hdr.msg_type = 12301 CTL_MSG_MANAGE_TASKS; 12302 msg_info.hdr.original_sc = NULL; 12303 msg_info.hdr.serializing_sc = NULL; 12304#if 0 12305 printf("Sent Abort to other side\n"); 12306#endif 12307 if (CTL_HA_STATUS_SUCCESS != 12308 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12309 (void *)&msg_info, 12310 sizeof(msg_info), 0)) { 12311 } 12312 } 12313#if 0 12314 printf("ctl_abort_task: found I/O to abort\n"); 12315#endif 12316 break; 12317 } 12318 } 12319 } 12320 mtx_unlock(&lun->lun_lock); 12321 12322 if (found == 0) { 12323 /* 12324 * This isn't really an error. It's entirely possible for 12325 * the abort and command completion to cross on the wire. 12326 * This is more of an informative/diagnostic error. 12327 */ 12328#if 0 12329 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12330 "%d:%d:%d:%d tag %d type %d\n", 12331 io->io_hdr.nexus.initid.id, 12332 io->io_hdr.nexus.targ_port, 12333 io->io_hdr.nexus.targ_target.id, 12334 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12335 io->taskio.tag_type); 12336#endif 12337 } 12338 return (0); 12339} 12340 12341static void 12342ctl_run_task(union ctl_io *io) 12343{ 12344 struct ctl_softc *ctl_softc = control_softc; 12345 int retval = 1; 12346 const char *task_desc; 12347 12348 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12349 12350 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12351 ("ctl_run_task: Unextected io_type %d\n", 12352 io->io_hdr.io_type)); 12353 12354 task_desc = ctl_scsi_task_string(&io->taskio); 12355 if (task_desc != NULL) { 12356#ifdef NEEDTOPORT 12357 csevent_log(CSC_CTL | CSC_SHELF_SW | 12358 CTL_TASK_REPORT, 12359 csevent_LogType_Trace, 12360 csevent_Severity_Information, 12361 csevent_AlertLevel_Green, 12362 csevent_FRU_Firmware, 12363 csevent_FRU_Unknown, 12364 "CTL: received task: %s",task_desc); 12365#endif 12366 } else { 12367#ifdef NEEDTOPORT 12368 csevent_log(CSC_CTL | CSC_SHELF_SW | 12369 CTL_TASK_REPORT, 12370 csevent_LogType_Trace, 12371 csevent_Severity_Information, 12372 csevent_AlertLevel_Green, 12373 csevent_FRU_Firmware, 12374 csevent_FRU_Unknown, 12375 "CTL: received unknown task " 12376 "type: %d (%#x)", 12377 io->taskio.task_action, 12378 io->taskio.task_action); 12379#endif 12380 } 12381 switch (io->taskio.task_action) { 12382 case CTL_TASK_ABORT_TASK: 12383 retval = ctl_abort_task(io); 12384 break; 12385 case CTL_TASK_ABORT_TASK_SET: 12386 case CTL_TASK_CLEAR_TASK_SET: 12387 retval = ctl_abort_task_set(io); 12388 break; 12389 case CTL_TASK_CLEAR_ACA: 12390 break; 12391 case CTL_TASK_I_T_NEXUS_RESET: 12392 retval = ctl_i_t_nexus_reset(io); 12393 break; 12394 case CTL_TASK_LUN_RESET: { 12395 struct ctl_lun *lun; 12396 uint32_t targ_lun; 12397 12398 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12399 mtx_lock(&ctl_softc->ctl_lock); 12400 if ((targ_lun < CTL_MAX_LUNS) 12401 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12402 lun = ctl_softc->ctl_luns[targ_lun]; 12403 else { 12404 mtx_unlock(&ctl_softc->ctl_lock); 12405 retval = 1; 12406 break; 12407 } 12408 12409 if (!(io->io_hdr.flags & 12410 CTL_FLAG_FROM_OTHER_SC)) { 12411 union ctl_ha_msg msg_info; 12412 12413 io->io_hdr.flags |= 12414 CTL_FLAG_SENT_2OTHER_SC; 12415 msg_info.hdr.msg_type = 12416 CTL_MSG_MANAGE_TASKS; 12417 msg_info.hdr.nexus = io->io_hdr.nexus; 12418 msg_info.task.task_action = 12419 CTL_TASK_LUN_RESET; 12420 msg_info.hdr.original_sc = NULL; 12421 msg_info.hdr.serializing_sc = NULL; 12422 if (CTL_HA_STATUS_SUCCESS != 12423 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12424 (void *)&msg_info, 12425 sizeof(msg_info), 0)) { 12426 } 12427 } 12428 12429 retval = ctl_lun_reset(lun, io, 12430 CTL_UA_LUN_RESET); 12431 mtx_unlock(&ctl_softc->ctl_lock); 12432 break; 12433 } 12434 case CTL_TASK_TARGET_RESET: 12435 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12436 break; 12437 case CTL_TASK_BUS_RESET: 12438 retval = ctl_bus_reset(ctl_softc, io); 12439 break; 12440 case CTL_TASK_PORT_LOGIN: 12441 break; 12442 case CTL_TASK_PORT_LOGOUT: 12443 break; 12444 default: 12445 printf("ctl_run_task: got unknown task management event %d\n", 12446 io->taskio.task_action); 12447 break; 12448 } 12449 if (retval == 0) 12450 io->io_hdr.status = CTL_SUCCESS; 12451 else 12452 io->io_hdr.status = CTL_ERROR; 12453 ctl_done(io); 12454} 12455 12456/* 12457 * For HA operation. Handle commands that come in from the other 12458 * controller. 12459 */ 12460static void 12461ctl_handle_isc(union ctl_io *io) 12462{ 12463 int free_io; 12464 struct ctl_lun *lun; 12465 struct ctl_softc *ctl_softc; 12466 uint32_t targ_lun; 12467 12468 ctl_softc = control_softc; 12469 12470 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12471 lun = ctl_softc->ctl_luns[targ_lun]; 12472 12473 switch (io->io_hdr.msg_type) { 12474 case CTL_MSG_SERIALIZE: 12475 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12476 break; 12477 case CTL_MSG_R2R: { 12478 const struct ctl_cmd_entry *entry; 12479 12480 /* 12481 * This is only used in SER_ONLY mode. 12482 */ 12483 free_io = 0; 12484 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12485 mtx_lock(&lun->lun_lock); 12486 if (ctl_scsiio_lun_check(ctl_softc, lun, 12487 entry, (struct ctl_scsiio *)io) != 0) { 12488 mtx_unlock(&lun->lun_lock); 12489 ctl_done(io); 12490 break; 12491 } 12492 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12493 mtx_unlock(&lun->lun_lock); 12494 ctl_enqueue_rtr(io); 12495 break; 12496 } 12497 case CTL_MSG_FINISH_IO: 12498 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12499 free_io = 0; 12500 ctl_done(io); 12501 } else { 12502 free_io = 1; 12503 mtx_lock(&lun->lun_lock); 12504 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12505 ooa_links); 12506 ctl_check_blocked(lun); 12507 mtx_unlock(&lun->lun_lock); 12508 } 12509 break; 12510 case CTL_MSG_PERS_ACTION: 12511 ctl_hndl_per_res_out_on_other_sc( 12512 (union ctl_ha_msg *)&io->presio.pr_msg); 12513 free_io = 1; 12514 break; 12515 case CTL_MSG_BAD_JUJU: 12516 free_io = 0; 12517 ctl_done(io); 12518 break; 12519 case CTL_MSG_DATAMOVE: 12520 /* Only used in XFER mode */ 12521 free_io = 0; 12522 ctl_datamove_remote(io); 12523 break; 12524 case CTL_MSG_DATAMOVE_DONE: 12525 /* Only used in XFER mode */ 12526 free_io = 0; 12527 io->scsiio.be_move_done(io); 12528 break; 12529 default: 12530 free_io = 1; 12531 printf("%s: Invalid message type %d\n", 12532 __func__, io->io_hdr.msg_type); 12533 break; 12534 } 12535 if (free_io) 12536 ctl_free_io(io); 12537 12538} 12539 12540 12541/* 12542 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12543 * there is no match. 12544 */ 12545static ctl_lun_error_pattern 12546ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12547{ 12548 const struct ctl_cmd_entry *entry; 12549 ctl_lun_error_pattern filtered_pattern, pattern; 12550 12551 pattern = desc->error_pattern; 12552 12553 /* 12554 * XXX KDM we need more data passed into this function to match a 12555 * custom pattern, and we actually need to implement custom pattern 12556 * matching. 12557 */ 12558 if (pattern & CTL_LUN_PAT_CMD) 12559 return (CTL_LUN_PAT_CMD); 12560 12561 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12562 return (CTL_LUN_PAT_ANY); 12563 12564 entry = ctl_get_cmd_entry(ctsio, NULL); 12565 12566 filtered_pattern = entry->pattern & pattern; 12567 12568 /* 12569 * If the user requested specific flags in the pattern (e.g. 12570 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12571 * flags. 12572 * 12573 * If the user did not specify any flags, it doesn't matter whether 12574 * or not the command supports the flags. 12575 */ 12576 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12577 (pattern & ~CTL_LUN_PAT_MASK)) 12578 return (CTL_LUN_PAT_NONE); 12579 12580 /* 12581 * If the user asked for a range check, see if the requested LBA 12582 * range overlaps with this command's LBA range. 12583 */ 12584 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12585 uint64_t lba1; 12586 uint64_t len1; 12587 ctl_action action; 12588 int retval; 12589 12590 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12591 if (retval != 0) 12592 return (CTL_LUN_PAT_NONE); 12593 12594 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12595 desc->lba_range.len); 12596 /* 12597 * A "pass" means that the LBA ranges don't overlap, so 12598 * this doesn't match the user's range criteria. 12599 */ 12600 if (action == CTL_ACTION_PASS) 12601 return (CTL_LUN_PAT_NONE); 12602 } 12603 12604 return (filtered_pattern); 12605} 12606 12607static void 12608ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12609{ 12610 struct ctl_error_desc *desc, *desc2; 12611 12612 mtx_assert(&lun->lun_lock, MA_OWNED); 12613 12614 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12615 ctl_lun_error_pattern pattern; 12616 /* 12617 * Check to see whether this particular command matches 12618 * the pattern in the descriptor. 12619 */ 12620 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12621 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12622 continue; 12623 12624 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12625 case CTL_LUN_INJ_ABORTED: 12626 ctl_set_aborted(&io->scsiio); 12627 break; 12628 case CTL_LUN_INJ_MEDIUM_ERR: 12629 ctl_set_medium_error(&io->scsiio); 12630 break; 12631 case CTL_LUN_INJ_UA: 12632 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12633 * OCCURRED */ 12634 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12635 break; 12636 case CTL_LUN_INJ_CUSTOM: 12637 /* 12638 * We're assuming the user knows what he is doing. 12639 * Just copy the sense information without doing 12640 * checks. 12641 */ 12642 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12643 ctl_min(sizeof(desc->custom_sense), 12644 sizeof(io->scsiio.sense_data))); 12645 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12646 io->scsiio.sense_len = SSD_FULL_SIZE; 12647 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12648 break; 12649 case CTL_LUN_INJ_NONE: 12650 default: 12651 /* 12652 * If this is an error injection type we don't know 12653 * about, clear the continuous flag (if it is set) 12654 * so it will get deleted below. 12655 */ 12656 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12657 break; 12658 } 12659 /* 12660 * By default, each error injection action is a one-shot 12661 */ 12662 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12663 continue; 12664 12665 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12666 12667 free(desc, M_CTL); 12668 } 12669} 12670 12671#ifdef CTL_IO_DELAY 12672static void 12673ctl_datamove_timer_wakeup(void *arg) 12674{ 12675 union ctl_io *io; 12676 12677 io = (union ctl_io *)arg; 12678 12679 ctl_datamove(io); 12680} 12681#endif /* CTL_IO_DELAY */ 12682 12683void 12684ctl_datamove(union ctl_io *io) 12685{ 12686 void (*fe_datamove)(union ctl_io *io); 12687 12688 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12689 12690 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12691 12692#ifdef CTL_TIME_IO 12693 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12694 char str[256]; 12695 char path_str[64]; 12696 struct sbuf sb; 12697 12698 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12699 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12700 12701 sbuf_cat(&sb, path_str); 12702 switch (io->io_hdr.io_type) { 12703 case CTL_IO_SCSI: 12704 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12705 sbuf_printf(&sb, "\n"); 12706 sbuf_cat(&sb, path_str); 12707 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12708 io->scsiio.tag_num, io->scsiio.tag_type); 12709 break; 12710 case CTL_IO_TASK: 12711 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12712 "Tag Type: %d\n", io->taskio.task_action, 12713 io->taskio.tag_num, io->taskio.tag_type); 12714 break; 12715 default: 12716 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12717 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12718 break; 12719 } 12720 sbuf_cat(&sb, path_str); 12721 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12722 (intmax_t)time_uptime - io->io_hdr.start_time); 12723 sbuf_finish(&sb); 12724 printf("%s", sbuf_data(&sb)); 12725 } 12726#endif /* CTL_TIME_IO */ 12727 12728#ifdef CTL_IO_DELAY 12729 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12730 struct ctl_lun *lun; 12731 12732 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12733 12734 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12735 } else { 12736 struct ctl_lun *lun; 12737 12738 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12739 if ((lun != NULL) 12740 && (lun->delay_info.datamove_delay > 0)) { 12741 struct callout *callout; 12742 12743 callout = (struct callout *)&io->io_hdr.timer_bytes; 12744 callout_init(callout, /*mpsafe*/ 1); 12745 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12746 callout_reset(callout, 12747 lun->delay_info.datamove_delay * hz, 12748 ctl_datamove_timer_wakeup, io); 12749 if (lun->delay_info.datamove_type == 12750 CTL_DELAY_TYPE_ONESHOT) 12751 lun->delay_info.datamove_delay = 0; 12752 return; 12753 } 12754 } 12755#endif 12756 12757 /* 12758 * This command has been aborted. Set the port status, so we fail 12759 * the data move. 12760 */ 12761 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12762 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12763 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12764 io->io_hdr.nexus.targ_port, 12765 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12766 io->io_hdr.nexus.targ_lun); 12767 io->io_hdr.port_status = 31337; 12768 /* 12769 * Note that the backend, in this case, will get the 12770 * callback in its context. In other cases it may get 12771 * called in the frontend's interrupt thread context. 12772 */ 12773 io->scsiio.be_move_done(io); 12774 return; 12775 } 12776 12777 /* 12778 * If we're in XFER mode and this I/O is from the other shelf 12779 * controller, we need to send the DMA to the other side to 12780 * actually transfer the data to/from the host. In serialize only 12781 * mode the transfer happens below CTL and ctl_datamove() is only 12782 * called on the machine that originally received the I/O. 12783 */ 12784 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12785 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12786 union ctl_ha_msg msg; 12787 uint32_t sg_entries_sent; 12788 int do_sg_copy; 12789 int i; 12790 12791 memset(&msg, 0, sizeof(msg)); 12792 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12793 msg.hdr.original_sc = io->io_hdr.original_sc; 12794 msg.hdr.serializing_sc = io; 12795 msg.hdr.nexus = io->io_hdr.nexus; 12796 msg.dt.flags = io->io_hdr.flags; 12797 /* 12798 * We convert everything into a S/G list here. We can't 12799 * pass by reference, only by value between controllers. 12800 * So we can't pass a pointer to the S/G list, only as many 12801 * S/G entries as we can fit in here. If it's possible for 12802 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12803 * then we need to break this up into multiple transfers. 12804 */ 12805 if (io->scsiio.kern_sg_entries == 0) { 12806 msg.dt.kern_sg_entries = 1; 12807 /* 12808 * If this is in cached memory, flush the cache 12809 * before we send the DMA request to the other 12810 * controller. We want to do this in either the 12811 * read or the write case. The read case is 12812 * straightforward. In the write case, we want to 12813 * make sure nothing is in the local cache that 12814 * could overwrite the DMAed data. 12815 */ 12816 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12817 /* 12818 * XXX KDM use bus_dmamap_sync() here. 12819 */ 12820 } 12821 12822 /* 12823 * Convert to a physical address if this is a 12824 * virtual address. 12825 */ 12826 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12827 msg.dt.sg_list[0].addr = 12828 io->scsiio.kern_data_ptr; 12829 } else { 12830 /* 12831 * XXX KDM use busdma here! 12832 */ 12833#if 0 12834 msg.dt.sg_list[0].addr = (void *) 12835 vtophys(io->scsiio.kern_data_ptr); 12836#endif 12837 } 12838 12839 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12840 do_sg_copy = 0; 12841 } else { 12842 struct ctl_sg_entry *sgl; 12843 12844 do_sg_copy = 1; 12845 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12846 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12847 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12848 /* 12849 * XXX KDM use bus_dmamap_sync() here. 12850 */ 12851 } 12852 } 12853 12854 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12855 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12856 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12857 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12858 msg.dt.sg_sequence = 0; 12859 12860 /* 12861 * Loop until we've sent all of the S/G entries. On the 12862 * other end, we'll recompose these S/G entries into one 12863 * contiguous list before passing it to the 12864 */ 12865 for (sg_entries_sent = 0; sg_entries_sent < 12866 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12867 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12868 sizeof(msg.dt.sg_list[0])), 12869 msg.dt.kern_sg_entries - sg_entries_sent); 12870 12871 if (do_sg_copy != 0) { 12872 struct ctl_sg_entry *sgl; 12873 int j; 12874 12875 sgl = (struct ctl_sg_entry *) 12876 io->scsiio.kern_data_ptr; 12877 /* 12878 * If this is in cached memory, flush the cache 12879 * before we send the DMA request to the other 12880 * controller. We want to do this in either 12881 * the * read or the write case. The read 12882 * case is straightforward. In the write 12883 * case, we want to make sure nothing is 12884 * in the local cache that could overwrite 12885 * the DMAed data. 12886 */ 12887 12888 for (i = sg_entries_sent, j = 0; 12889 i < msg.dt.cur_sg_entries; i++, j++) { 12890 if ((io->io_hdr.flags & 12891 CTL_FLAG_NO_DATASYNC) == 0) { 12892 /* 12893 * XXX KDM use bus_dmamap_sync() 12894 */ 12895 } 12896 if ((io->io_hdr.flags & 12897 CTL_FLAG_BUS_ADDR) == 0) { 12898 /* 12899 * XXX KDM use busdma. 12900 */ 12901#if 0 12902 msg.dt.sg_list[j].addr =(void *) 12903 vtophys(sgl[i].addr); 12904#endif 12905 } else { 12906 msg.dt.sg_list[j].addr = 12907 sgl[i].addr; 12908 } 12909 msg.dt.sg_list[j].len = sgl[i].len; 12910 } 12911 } 12912 12913 sg_entries_sent += msg.dt.cur_sg_entries; 12914 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12915 msg.dt.sg_last = 1; 12916 else 12917 msg.dt.sg_last = 0; 12918 12919 /* 12920 * XXX KDM drop and reacquire the lock here? 12921 */ 12922 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12923 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12924 /* 12925 * XXX do something here. 12926 */ 12927 } 12928 12929 msg.dt.sent_sg_entries = sg_entries_sent; 12930 } 12931 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12932 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12933 ctl_failover_io(io, /*have_lock*/ 0); 12934 12935 } else { 12936 12937 /* 12938 * Lookup the fe_datamove() function for this particular 12939 * front end. 12940 */ 12941 fe_datamove = 12942 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12943 12944 fe_datamove(io); 12945 } 12946} 12947 12948static void 12949ctl_send_datamove_done(union ctl_io *io, int have_lock) 12950{ 12951 union ctl_ha_msg msg; 12952 int isc_status; 12953 12954 memset(&msg, 0, sizeof(msg)); 12955 12956 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12957 msg.hdr.original_sc = io; 12958 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12959 msg.hdr.nexus = io->io_hdr.nexus; 12960 msg.hdr.status = io->io_hdr.status; 12961 msg.scsi.tag_num = io->scsiio.tag_num; 12962 msg.scsi.tag_type = io->scsiio.tag_type; 12963 msg.scsi.scsi_status = io->scsiio.scsi_status; 12964 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12965 sizeof(io->scsiio.sense_data)); 12966 msg.scsi.sense_len = io->scsiio.sense_len; 12967 msg.scsi.sense_residual = io->scsiio.sense_residual; 12968 msg.scsi.fetd_status = io->io_hdr.port_status; 12969 msg.scsi.residual = io->scsiio.residual; 12970 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12971 12972 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12973 ctl_failover_io(io, /*have_lock*/ have_lock); 12974 return; 12975 } 12976 12977 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12978 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12979 /* XXX do something if this fails */ 12980 } 12981 12982} 12983 12984/* 12985 * The DMA to the remote side is done, now we need to tell the other side 12986 * we're done so it can continue with its data movement. 12987 */ 12988static void 12989ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12990{ 12991 union ctl_io *io; 12992 12993 io = rq->context; 12994 12995 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12996 printf("%s: ISC DMA write failed with error %d", __func__, 12997 rq->ret); 12998 ctl_set_internal_failure(&io->scsiio, 12999 /*sks_valid*/ 1, 13000 /*retry_count*/ rq->ret); 13001 } 13002 13003 ctl_dt_req_free(rq); 13004 13005 /* 13006 * In this case, we had to malloc the memory locally. Free it. 13007 */ 13008 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13009 int i; 13010 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13011 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13012 } 13013 /* 13014 * The data is in local and remote memory, so now we need to send 13015 * status (good or back) back to the other side. 13016 */ 13017 ctl_send_datamove_done(io, /*have_lock*/ 0); 13018} 13019 13020/* 13021 * We've moved the data from the host/controller into local memory. Now we 13022 * need to push it over to the remote controller's memory. 13023 */ 13024static int 13025ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13026{ 13027 int retval; 13028 13029 retval = 0; 13030 13031 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13032 ctl_datamove_remote_write_cb); 13033 13034 return (retval); 13035} 13036 13037static void 13038ctl_datamove_remote_write(union ctl_io *io) 13039{ 13040 int retval; 13041 void (*fe_datamove)(union ctl_io *io); 13042 13043 /* 13044 * - Get the data from the host/HBA into local memory. 13045 * - DMA memory from the local controller to the remote controller. 13046 * - Send status back to the remote controller. 13047 */ 13048 13049 retval = ctl_datamove_remote_sgl_setup(io); 13050 if (retval != 0) 13051 return; 13052 13053 /* Switch the pointer over so the FETD knows what to do */ 13054 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13055 13056 /* 13057 * Use a custom move done callback, since we need to send completion 13058 * back to the other controller, not to the backend on this side. 13059 */ 13060 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13061 13062 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13063 13064 fe_datamove(io); 13065 13066 return; 13067 13068} 13069 13070static int 13071ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13072{ 13073#if 0 13074 char str[256]; 13075 char path_str[64]; 13076 struct sbuf sb; 13077#endif 13078 13079 /* 13080 * In this case, we had to malloc the memory locally. Free it. 13081 */ 13082 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13083 int i; 13084 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13085 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13086 } 13087 13088#if 0 13089 scsi_path_string(io, path_str, sizeof(path_str)); 13090 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13091 sbuf_cat(&sb, path_str); 13092 scsi_command_string(&io->scsiio, NULL, &sb); 13093 sbuf_printf(&sb, "\n"); 13094 sbuf_cat(&sb, path_str); 13095 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13096 io->scsiio.tag_num, io->scsiio.tag_type); 13097 sbuf_cat(&sb, path_str); 13098 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13099 io->io_hdr.flags, io->io_hdr.status); 13100 sbuf_finish(&sb); 13101 printk("%s", sbuf_data(&sb)); 13102#endif 13103 13104 13105 /* 13106 * The read is done, now we need to send status (good or bad) back 13107 * to the other side. 13108 */ 13109 ctl_send_datamove_done(io, /*have_lock*/ 0); 13110 13111 return (0); 13112} 13113 13114static void 13115ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13116{ 13117 union ctl_io *io; 13118 void (*fe_datamove)(union ctl_io *io); 13119 13120 io = rq->context; 13121 13122 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13123 printf("%s: ISC DMA read failed with error %d", __func__, 13124 rq->ret); 13125 ctl_set_internal_failure(&io->scsiio, 13126 /*sks_valid*/ 1, 13127 /*retry_count*/ rq->ret); 13128 } 13129 13130 ctl_dt_req_free(rq); 13131 13132 /* Switch the pointer over so the FETD knows what to do */ 13133 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13134 13135 /* 13136 * Use a custom move done callback, since we need to send completion 13137 * back to the other controller, not to the backend on this side. 13138 */ 13139 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13140 13141 /* XXX KDM add checks like the ones in ctl_datamove? */ 13142 13143 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13144 13145 fe_datamove(io); 13146} 13147 13148static int 13149ctl_datamove_remote_sgl_setup(union ctl_io *io) 13150{ 13151 struct ctl_sg_entry *local_sglist, *remote_sglist; 13152 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13153 struct ctl_softc *softc; 13154 int retval; 13155 int i; 13156 13157 retval = 0; 13158 softc = control_softc; 13159 13160 local_sglist = io->io_hdr.local_sglist; 13161 local_dma_sglist = io->io_hdr.local_dma_sglist; 13162 remote_sglist = io->io_hdr.remote_sglist; 13163 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13164 13165 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13166 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13167 local_sglist[i].len = remote_sglist[i].len; 13168 13169 /* 13170 * XXX Detect the situation where the RS-level I/O 13171 * redirector on the other side has already read the 13172 * data off of the AOR RS on this side, and 13173 * transferred it to remote (mirror) memory on the 13174 * other side. Since we already have the data in 13175 * memory here, we just need to use it. 13176 * 13177 * XXX KDM this can probably be removed once we 13178 * get the cache device code in and take the 13179 * current AOR implementation out. 13180 */ 13181#ifdef NEEDTOPORT 13182 if ((remote_sglist[i].addr >= 13183 (void *)vtophys(softc->mirr->addr)) 13184 && (remote_sglist[i].addr < 13185 ((void *)vtophys(softc->mirr->addr) + 13186 CacheMirrorOffset))) { 13187 local_sglist[i].addr = remote_sglist[i].addr - 13188 CacheMirrorOffset; 13189 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13190 CTL_FLAG_DATA_IN) 13191 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13192 } else { 13193 local_sglist[i].addr = remote_sglist[i].addr + 13194 CacheMirrorOffset; 13195 } 13196#endif 13197#if 0 13198 printf("%s: local %p, remote %p, len %d\n", 13199 __func__, local_sglist[i].addr, 13200 remote_sglist[i].addr, local_sglist[i].len); 13201#endif 13202 } 13203 } else { 13204 uint32_t len_to_go; 13205 13206 /* 13207 * In this case, we don't have automatically allocated 13208 * memory for this I/O on this controller. This typically 13209 * happens with internal CTL I/O -- e.g. inquiry, mode 13210 * sense, etc. Anything coming from RAIDCore will have 13211 * a mirror area available. 13212 */ 13213 len_to_go = io->scsiio.kern_data_len; 13214 13215 /* 13216 * Clear the no datasync flag, we have to use malloced 13217 * buffers. 13218 */ 13219 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13220 13221 /* 13222 * The difficult thing here is that the size of the various 13223 * S/G segments may be different than the size from the 13224 * remote controller. That'll make it harder when DMAing 13225 * the data back to the other side. 13226 */ 13227 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13228 sizeof(io->io_hdr.remote_sglist[0])) && 13229 (len_to_go > 0); i++) { 13230 local_sglist[i].len = ctl_min(len_to_go, 131072); 13231 CTL_SIZE_8B(local_dma_sglist[i].len, 13232 local_sglist[i].len); 13233 local_sglist[i].addr = 13234 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13235 13236 local_dma_sglist[i].addr = local_sglist[i].addr; 13237 13238 if (local_sglist[i].addr == NULL) { 13239 int j; 13240 13241 printf("malloc failed for %zd bytes!", 13242 local_dma_sglist[i].len); 13243 for (j = 0; j < i; j++) { 13244 free(local_sglist[j].addr, M_CTL); 13245 } 13246 ctl_set_internal_failure(&io->scsiio, 13247 /*sks_valid*/ 1, 13248 /*retry_count*/ 4857); 13249 retval = 1; 13250 goto bailout_error; 13251 13252 } 13253 /* XXX KDM do we need a sync here? */ 13254 13255 len_to_go -= local_sglist[i].len; 13256 } 13257 /* 13258 * Reset the number of S/G entries accordingly. The 13259 * original number of S/G entries is available in 13260 * rem_sg_entries. 13261 */ 13262 io->scsiio.kern_sg_entries = i; 13263 13264#if 0 13265 printf("%s: kern_sg_entries = %d\n", __func__, 13266 io->scsiio.kern_sg_entries); 13267 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13268 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13269 local_sglist[i].addr, local_sglist[i].len, 13270 local_dma_sglist[i].len); 13271#endif 13272 } 13273 13274 13275 return (retval); 13276 13277bailout_error: 13278 13279 ctl_send_datamove_done(io, /*have_lock*/ 0); 13280 13281 return (retval); 13282} 13283 13284static int 13285ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13286 ctl_ha_dt_cb callback) 13287{ 13288 struct ctl_ha_dt_req *rq; 13289 struct ctl_sg_entry *remote_sglist, *local_sglist; 13290 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13291 uint32_t local_used, remote_used, total_used; 13292 int retval; 13293 int i, j; 13294 13295 retval = 0; 13296 13297 rq = ctl_dt_req_alloc(); 13298 13299 /* 13300 * If we failed to allocate the request, and if the DMA didn't fail 13301 * anyway, set busy status. This is just a resource allocation 13302 * failure. 13303 */ 13304 if ((rq == NULL) 13305 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13306 ctl_set_busy(&io->scsiio); 13307 13308 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13309 13310 if (rq != NULL) 13311 ctl_dt_req_free(rq); 13312 13313 /* 13314 * The data move failed. We need to return status back 13315 * to the other controller. No point in trying to DMA 13316 * data to the remote controller. 13317 */ 13318 13319 ctl_send_datamove_done(io, /*have_lock*/ 0); 13320 13321 retval = 1; 13322 13323 goto bailout; 13324 } 13325 13326 local_sglist = io->io_hdr.local_sglist; 13327 local_dma_sglist = io->io_hdr.local_dma_sglist; 13328 remote_sglist = io->io_hdr.remote_sglist; 13329 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13330 local_used = 0; 13331 remote_used = 0; 13332 total_used = 0; 13333 13334 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13335 rq->ret = CTL_HA_STATUS_SUCCESS; 13336 rq->context = io; 13337 callback(rq); 13338 goto bailout; 13339 } 13340 13341 /* 13342 * Pull/push the data over the wire from/to the other controller. 13343 * This takes into account the possibility that the local and 13344 * remote sglists may not be identical in terms of the size of 13345 * the elements and the number of elements. 13346 * 13347 * One fundamental assumption here is that the length allocated for 13348 * both the local and remote sglists is identical. Otherwise, we've 13349 * essentially got a coding error of some sort. 13350 */ 13351 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13352 int isc_ret; 13353 uint32_t cur_len, dma_length; 13354 uint8_t *tmp_ptr; 13355 13356 rq->id = CTL_HA_DATA_CTL; 13357 rq->command = command; 13358 rq->context = io; 13359 13360 /* 13361 * Both pointers should be aligned. But it is possible 13362 * that the allocation length is not. They should both 13363 * also have enough slack left over at the end, though, 13364 * to round up to the next 8 byte boundary. 13365 */ 13366 cur_len = ctl_min(local_sglist[i].len - local_used, 13367 remote_sglist[j].len - remote_used); 13368 13369 /* 13370 * In this case, we have a size issue and need to decrease 13371 * the size, except in the case where we actually have less 13372 * than 8 bytes left. In that case, we need to increase 13373 * the DMA length to get the last bit. 13374 */ 13375 if ((cur_len & 0x7) != 0) { 13376 if (cur_len > 0x7) { 13377 cur_len = cur_len - (cur_len & 0x7); 13378 dma_length = cur_len; 13379 } else { 13380 CTL_SIZE_8B(dma_length, cur_len); 13381 } 13382 13383 } else 13384 dma_length = cur_len; 13385 13386 /* 13387 * If we had to allocate memory for this I/O, instead of using 13388 * the non-cached mirror memory, we'll need to flush the cache 13389 * before trying to DMA to the other controller. 13390 * 13391 * We could end up doing this multiple times for the same 13392 * segment if we have a larger local segment than remote 13393 * segment. That shouldn't be an issue. 13394 */ 13395 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13396 /* 13397 * XXX KDM use bus_dmamap_sync() here. 13398 */ 13399 } 13400 13401 rq->size = dma_length; 13402 13403 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13404 tmp_ptr += local_used; 13405 13406 /* Use physical addresses when talking to ISC hardware */ 13407 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13408 /* XXX KDM use busdma */ 13409#if 0 13410 rq->local = vtophys(tmp_ptr); 13411#endif 13412 } else 13413 rq->local = tmp_ptr; 13414 13415 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13416 tmp_ptr += remote_used; 13417 rq->remote = tmp_ptr; 13418 13419 rq->callback = NULL; 13420 13421 local_used += cur_len; 13422 if (local_used >= local_sglist[i].len) { 13423 i++; 13424 local_used = 0; 13425 } 13426 13427 remote_used += cur_len; 13428 if (remote_used >= remote_sglist[j].len) { 13429 j++; 13430 remote_used = 0; 13431 } 13432 total_used += cur_len; 13433 13434 if (total_used >= io->scsiio.kern_data_len) 13435 rq->callback = callback; 13436 13437 if ((rq->size & 0x7) != 0) { 13438 printf("%s: warning: size %d is not on 8b boundary\n", 13439 __func__, rq->size); 13440 } 13441 if (((uintptr_t)rq->local & 0x7) != 0) { 13442 printf("%s: warning: local %p not on 8b boundary\n", 13443 __func__, rq->local); 13444 } 13445 if (((uintptr_t)rq->remote & 0x7) != 0) { 13446 printf("%s: warning: remote %p not on 8b boundary\n", 13447 __func__, rq->local); 13448 } 13449#if 0 13450 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13451 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13452 rq->local, rq->remote, rq->size); 13453#endif 13454 13455 isc_ret = ctl_dt_single(rq); 13456 if (isc_ret == CTL_HA_STATUS_WAIT) 13457 continue; 13458 13459 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13460 rq->ret = CTL_HA_STATUS_SUCCESS; 13461 } else { 13462 rq->ret = isc_ret; 13463 } 13464 callback(rq); 13465 goto bailout; 13466 } 13467 13468bailout: 13469 return (retval); 13470 13471} 13472 13473static void 13474ctl_datamove_remote_read(union ctl_io *io) 13475{ 13476 int retval; 13477 int i; 13478 13479 /* 13480 * This will send an error to the other controller in the case of a 13481 * failure. 13482 */ 13483 retval = ctl_datamove_remote_sgl_setup(io); 13484 if (retval != 0) 13485 return; 13486 13487 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13488 ctl_datamove_remote_read_cb); 13489 if ((retval != 0) 13490 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13491 /* 13492 * Make sure we free memory if there was an error.. The 13493 * ctl_datamove_remote_xfer() function will send the 13494 * datamove done message, or call the callback with an 13495 * error if there is a problem. 13496 */ 13497 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13498 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13499 } 13500 13501 return; 13502} 13503 13504/* 13505 * Process a datamove request from the other controller. This is used for 13506 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13507 * first. Once that is complete, the data gets DMAed into the remote 13508 * controller's memory. For reads, we DMA from the remote controller's 13509 * memory into our memory first, and then move it out to the FETD. 13510 */ 13511static void 13512ctl_datamove_remote(union ctl_io *io) 13513{ 13514 struct ctl_softc *softc; 13515 13516 softc = control_softc; 13517 13518 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13519 13520 /* 13521 * Note that we look for an aborted I/O here, but don't do some of 13522 * the other checks that ctl_datamove() normally does. 13523 * We don't need to run the datamove delay code, since that should 13524 * have been done if need be on the other controller. 13525 */ 13526 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13527 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13528 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13529 io->io_hdr.nexus.targ_port, 13530 io->io_hdr.nexus.targ_target.id, 13531 io->io_hdr.nexus.targ_lun); 13532 io->io_hdr.port_status = 31338; 13533 ctl_send_datamove_done(io, /*have_lock*/ 0); 13534 return; 13535 } 13536 13537 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13538 ctl_datamove_remote_write(io); 13539 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13540 ctl_datamove_remote_read(io); 13541 } else { 13542 union ctl_ha_msg msg; 13543 struct scsi_sense_data *sense; 13544 uint8_t sks[3]; 13545 int retry_count; 13546 13547 memset(&msg, 0, sizeof(msg)); 13548 13549 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13550 msg.hdr.status = CTL_SCSI_ERROR; 13551 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13552 13553 retry_count = 4243; 13554 13555 sense = &msg.scsi.sense_data; 13556 sks[0] = SSD_SCS_VALID; 13557 sks[1] = (retry_count >> 8) & 0xff; 13558 sks[2] = retry_count & 0xff; 13559 13560 /* "Internal target failure" */ 13561 scsi_set_sense_data(sense, 13562 /*sense_format*/ SSD_TYPE_NONE, 13563 /*current_error*/ 1, 13564 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13565 /*asc*/ 0x44, 13566 /*ascq*/ 0x00, 13567 /*type*/ SSD_ELEM_SKS, 13568 /*size*/ sizeof(sks), 13569 /*data*/ sks, 13570 SSD_ELEM_NONE); 13571 13572 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13573 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13574 ctl_failover_io(io, /*have_lock*/ 1); 13575 return; 13576 } 13577 13578 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13579 CTL_HA_STATUS_SUCCESS) { 13580 /* XXX KDM what to do if this fails? */ 13581 } 13582 return; 13583 } 13584 13585} 13586 13587static int 13588ctl_process_done(union ctl_io *io) 13589{ 13590 struct ctl_lun *lun; 13591 struct ctl_softc *ctl_softc; 13592 void (*fe_done)(union ctl_io *io); 13593 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13594 13595 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13596 13597 fe_done = 13598 control_softc->ctl_ports[targ_port]->fe_done; 13599 13600#ifdef CTL_TIME_IO 13601 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13602 char str[256]; 13603 char path_str[64]; 13604 struct sbuf sb; 13605 13606 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13607 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13608 13609 sbuf_cat(&sb, path_str); 13610 switch (io->io_hdr.io_type) { 13611 case CTL_IO_SCSI: 13612 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13613 sbuf_printf(&sb, "\n"); 13614 sbuf_cat(&sb, path_str); 13615 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13616 io->scsiio.tag_num, io->scsiio.tag_type); 13617 break; 13618 case CTL_IO_TASK: 13619 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13620 "Tag Type: %d\n", io->taskio.task_action, 13621 io->taskio.tag_num, io->taskio.tag_type); 13622 break; 13623 default: 13624 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13625 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13626 break; 13627 } 13628 sbuf_cat(&sb, path_str); 13629 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13630 (intmax_t)time_uptime - io->io_hdr.start_time); 13631 sbuf_finish(&sb); 13632 printf("%s", sbuf_data(&sb)); 13633 } 13634#endif /* CTL_TIME_IO */ 13635 13636 switch (io->io_hdr.io_type) { 13637 case CTL_IO_SCSI: 13638 break; 13639 case CTL_IO_TASK: 13640 if (bootverbose || verbose > 0) 13641 ctl_io_error_print(io, NULL); 13642 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13643 ctl_free_io(io); 13644 else 13645 fe_done(io); 13646 return (CTL_RETVAL_COMPLETE); 13647 break; 13648 default: 13649 printf("ctl_process_done: invalid io type %d\n", 13650 io->io_hdr.io_type); 13651 panic("ctl_process_done: invalid io type %d\n", 13652 io->io_hdr.io_type); 13653 break; /* NOTREACHED */ 13654 } 13655 13656 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13657 if (lun == NULL) { 13658 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13659 io->io_hdr.nexus.targ_mapped_lun)); 13660 fe_done(io); 13661 goto bailout; 13662 } 13663 ctl_softc = lun->ctl_softc; 13664 13665 mtx_lock(&lun->lun_lock); 13666 13667 /* 13668 * Check to see if we have any errors to inject here. We only 13669 * inject errors for commands that don't already have errors set. 13670 */ 13671 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13672 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13673 ctl_inject_error(lun, io); 13674 13675 /* 13676 * XXX KDM how do we treat commands that aren't completed 13677 * successfully? 13678 * 13679 * XXX KDM should we also track I/O latency? 13680 */ 13681 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13682 io->io_hdr.io_type == CTL_IO_SCSI) { 13683#ifdef CTL_TIME_IO 13684 struct bintime cur_bt; 13685#endif 13686 int type; 13687 13688 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13689 CTL_FLAG_DATA_IN) 13690 type = CTL_STATS_READ; 13691 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13692 CTL_FLAG_DATA_OUT) 13693 type = CTL_STATS_WRITE; 13694 else 13695 type = CTL_STATS_NO_IO; 13696 13697 lun->stats.ports[targ_port].bytes[type] += 13698 io->scsiio.kern_total_len; 13699 lun->stats.ports[targ_port].operations[type]++; 13700#ifdef CTL_TIME_IO 13701 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13702 &io->io_hdr.dma_bt); 13703 lun->stats.ports[targ_port].num_dmas[type] += 13704 io->io_hdr.num_dmas; 13705 getbintime(&cur_bt); 13706 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13707 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13708#endif 13709 } 13710 13711 /* 13712 * Remove this from the OOA queue. 13713 */ 13714 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13715 13716 /* 13717 * Run through the blocked queue on this LUN and see if anything 13718 * has become unblocked, now that this transaction is done. 13719 */ 13720 ctl_check_blocked(lun); 13721 13722 /* 13723 * If the LUN has been invalidated, free it if there is nothing 13724 * left on its OOA queue. 13725 */ 13726 if ((lun->flags & CTL_LUN_INVALID) 13727 && TAILQ_EMPTY(&lun->ooa_queue)) { 13728 mtx_unlock(&lun->lun_lock); 13729 mtx_lock(&ctl_softc->ctl_lock); 13730 ctl_free_lun(lun); 13731 mtx_unlock(&ctl_softc->ctl_lock); 13732 } else 13733 mtx_unlock(&lun->lun_lock); 13734 13735 /* 13736 * If this command has been aborted, make sure we set the status 13737 * properly. The FETD is responsible for freeing the I/O and doing 13738 * whatever it needs to do to clean up its state. 13739 */ 13740 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13741 ctl_set_task_aborted(&io->scsiio); 13742 13743 /* 13744 * We print out status for every task management command. For SCSI 13745 * commands, we filter out any unit attention errors; they happen 13746 * on every boot, and would clutter up the log. Note: task 13747 * management commands aren't printed here, they are printed above, 13748 * since they should never even make it down here. 13749 */ 13750 switch (io->io_hdr.io_type) { 13751 case CTL_IO_SCSI: { 13752 int error_code, sense_key, asc, ascq; 13753 13754 sense_key = 0; 13755 13756 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13757 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13758 /* 13759 * Since this is just for printing, no need to 13760 * show errors here. 13761 */ 13762 scsi_extract_sense_len(&io->scsiio.sense_data, 13763 io->scsiio.sense_len, 13764 &error_code, 13765 &sense_key, 13766 &asc, 13767 &ascq, 13768 /*show_errors*/ 0); 13769 } 13770 13771 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13772 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13773 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13774 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13775 13776 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13777 ctl_softc->skipped_prints++; 13778 } else { 13779 uint32_t skipped_prints; 13780 13781 skipped_prints = ctl_softc->skipped_prints; 13782 13783 ctl_softc->skipped_prints = 0; 13784 ctl_softc->last_print_jiffies = time_uptime; 13785 13786 if (skipped_prints > 0) { 13787#ifdef NEEDTOPORT 13788 csevent_log(CSC_CTL | CSC_SHELF_SW | 13789 CTL_ERROR_REPORT, 13790 csevent_LogType_Trace, 13791 csevent_Severity_Information, 13792 csevent_AlertLevel_Green, 13793 csevent_FRU_Firmware, 13794 csevent_FRU_Unknown, 13795 "High CTL error volume, %d prints " 13796 "skipped", skipped_prints); 13797#endif 13798 } 13799 if (bootverbose || verbose > 0) 13800 ctl_io_error_print(io, NULL); 13801 } 13802 } 13803 break; 13804 } 13805 case CTL_IO_TASK: 13806 if (bootverbose || verbose > 0) 13807 ctl_io_error_print(io, NULL); 13808 break; 13809 default: 13810 break; 13811 } 13812 13813 /* 13814 * Tell the FETD or the other shelf controller we're done with this 13815 * command. Note that only SCSI commands get to this point. Task 13816 * management commands are completed above. 13817 * 13818 * We only send status to the other controller if we're in XFER 13819 * mode. In SER_ONLY mode, the I/O is done on the controller that 13820 * received the I/O (from CTL's perspective), and so the status is 13821 * generated there. 13822 * 13823 * XXX KDM if we hold the lock here, we could cause a deadlock 13824 * if the frontend comes back in in this context to queue 13825 * something. 13826 */ 13827 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13828 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13829 union ctl_ha_msg msg; 13830 13831 memset(&msg, 0, sizeof(msg)); 13832 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13833 msg.hdr.original_sc = io->io_hdr.original_sc; 13834 msg.hdr.nexus = io->io_hdr.nexus; 13835 msg.hdr.status = io->io_hdr.status; 13836 msg.scsi.scsi_status = io->scsiio.scsi_status; 13837 msg.scsi.tag_num = io->scsiio.tag_num; 13838 msg.scsi.tag_type = io->scsiio.tag_type; 13839 msg.scsi.sense_len = io->scsiio.sense_len; 13840 msg.scsi.sense_residual = io->scsiio.sense_residual; 13841 msg.scsi.residual = io->scsiio.residual; 13842 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13843 sizeof(io->scsiio.sense_data)); 13844 /* 13845 * We copy this whether or not this is an I/O-related 13846 * command. Otherwise, we'd have to go and check to see 13847 * whether it's a read/write command, and it really isn't 13848 * worth it. 13849 */ 13850 memcpy(&msg.scsi.lbalen, 13851 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13852 sizeof(msg.scsi.lbalen)); 13853 13854 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13855 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13856 /* XXX do something here */ 13857 } 13858 13859 ctl_free_io(io); 13860 } else 13861 fe_done(io); 13862 13863bailout: 13864 13865 return (CTL_RETVAL_COMPLETE); 13866} 13867 13868#ifdef CTL_WITH_CA 13869/* 13870 * Front end should call this if it doesn't do autosense. When the request 13871 * sense comes back in from the initiator, we'll dequeue this and send it. 13872 */ 13873int 13874ctl_queue_sense(union ctl_io *io) 13875{ 13876 struct ctl_lun *lun; 13877 struct ctl_softc *ctl_softc; 13878 uint32_t initidx, targ_lun; 13879 13880 ctl_softc = control_softc; 13881 13882 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13883 13884 /* 13885 * LUN lookup will likely move to the ctl_work_thread() once we 13886 * have our new queueing infrastructure (that doesn't put things on 13887 * a per-LUN queue initially). That is so that we can handle 13888 * things like an INQUIRY to a LUN that we don't have enabled. We 13889 * can't deal with that right now. 13890 */ 13891 mtx_lock(&ctl_softc->ctl_lock); 13892 13893 /* 13894 * If we don't have a LUN for this, just toss the sense 13895 * information. 13896 */ 13897 targ_lun = io->io_hdr.nexus.targ_lun; 13898 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13899 if ((targ_lun < CTL_MAX_LUNS) 13900 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13901 lun = ctl_softc->ctl_luns[targ_lun]; 13902 else 13903 goto bailout; 13904 13905 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13906 13907 mtx_lock(&lun->lun_lock); 13908 /* 13909 * Already have CA set for this LUN...toss the sense information. 13910 */ 13911 if (ctl_is_set(lun->have_ca, initidx)) { 13912 mtx_unlock(&lun->lun_lock); 13913 goto bailout; 13914 } 13915 13916 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13917 ctl_min(sizeof(lun->pending_sense[initidx]), 13918 sizeof(io->scsiio.sense_data))); 13919 ctl_set_mask(lun->have_ca, initidx); 13920 mtx_unlock(&lun->lun_lock); 13921 13922bailout: 13923 mtx_unlock(&ctl_softc->ctl_lock); 13924 13925 ctl_free_io(io); 13926 13927 return (CTL_RETVAL_COMPLETE); 13928} 13929#endif 13930 13931/* 13932 * Primary command inlet from frontend ports. All SCSI and task I/O 13933 * requests must go through this function. 13934 */ 13935int 13936ctl_queue(union ctl_io *io) 13937{ 13938 struct ctl_softc *ctl_softc; 13939 13940 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13941 13942 ctl_softc = control_softc; 13943 13944#ifdef CTL_TIME_IO 13945 io->io_hdr.start_time = time_uptime; 13946 getbintime(&io->io_hdr.start_bt); 13947#endif /* CTL_TIME_IO */ 13948 13949 /* Map FE-specific LUN ID into global one. */ 13950 io->io_hdr.nexus.targ_mapped_lun = 13951 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13952 13953 switch (io->io_hdr.io_type) { 13954 case CTL_IO_SCSI: 13955 case CTL_IO_TASK: 13956 ctl_enqueue_incoming(io); 13957 break; 13958 default: 13959 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13960 return (EINVAL); 13961 } 13962 13963 return (CTL_RETVAL_COMPLETE); 13964} 13965 13966#ifdef CTL_IO_DELAY 13967static void 13968ctl_done_timer_wakeup(void *arg) 13969{ 13970 union ctl_io *io; 13971 13972 io = (union ctl_io *)arg; 13973 ctl_done(io); 13974} 13975#endif /* CTL_IO_DELAY */ 13976 13977void 13978ctl_done(union ctl_io *io) 13979{ 13980 struct ctl_softc *ctl_softc; 13981 13982 ctl_softc = control_softc; 13983 13984 /* 13985 * Enable this to catch duplicate completion issues. 13986 */ 13987#if 0 13988 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13989 printf("%s: type %d msg %d cdb %x iptl: " 13990 "%d:%d:%d:%d tag 0x%04x " 13991 "flag %#x status %x\n", 13992 __func__, 13993 io->io_hdr.io_type, 13994 io->io_hdr.msg_type, 13995 io->scsiio.cdb[0], 13996 io->io_hdr.nexus.initid.id, 13997 io->io_hdr.nexus.targ_port, 13998 io->io_hdr.nexus.targ_target.id, 13999 io->io_hdr.nexus.targ_lun, 14000 (io->io_hdr.io_type == 14001 CTL_IO_TASK) ? 14002 io->taskio.tag_num : 14003 io->scsiio.tag_num, 14004 io->io_hdr.flags, 14005 io->io_hdr.status); 14006 } else 14007 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14008#endif 14009 14010 /* 14011 * This is an internal copy of an I/O, and should not go through 14012 * the normal done processing logic. 14013 */ 14014 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14015 return; 14016 14017 /* 14018 * We need to send a msg to the serializing shelf to finish the IO 14019 * as well. We don't send a finish message to the other shelf if 14020 * this is a task management command. Task management commands 14021 * aren't serialized in the OOA queue, but rather just executed on 14022 * both shelf controllers for commands that originated on that 14023 * controller. 14024 */ 14025 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14026 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14027 union ctl_ha_msg msg_io; 14028 14029 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14030 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14031 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14032 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14033 } 14034 /* continue on to finish IO */ 14035 } 14036#ifdef CTL_IO_DELAY 14037 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14038 struct ctl_lun *lun; 14039 14040 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14041 14042 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14043 } else { 14044 struct ctl_lun *lun; 14045 14046 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14047 14048 if ((lun != NULL) 14049 && (lun->delay_info.done_delay > 0)) { 14050 struct callout *callout; 14051 14052 callout = (struct callout *)&io->io_hdr.timer_bytes; 14053 callout_init(callout, /*mpsafe*/ 1); 14054 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14055 callout_reset(callout, 14056 lun->delay_info.done_delay * hz, 14057 ctl_done_timer_wakeup, io); 14058 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14059 lun->delay_info.done_delay = 0; 14060 return; 14061 } 14062 } 14063#endif /* CTL_IO_DELAY */ 14064 14065 ctl_enqueue_done(io); 14066} 14067 14068int 14069ctl_isc(struct ctl_scsiio *ctsio) 14070{ 14071 struct ctl_lun *lun; 14072 int retval; 14073 14074 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14075 14076 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14077 14078 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14079 14080 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14081 14082 return (retval); 14083} 14084 14085 14086static void 14087ctl_work_thread(void *arg) 14088{ 14089 struct ctl_thread *thr = (struct ctl_thread *)arg; 14090 struct ctl_softc *softc = thr->ctl_softc; 14091 union ctl_io *io; 14092 int retval; 14093 14094 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14095 14096 for (;;) { 14097 retval = 0; 14098 14099 /* 14100 * We handle the queues in this order: 14101 * - ISC 14102 * - done queue (to free up resources, unblock other commands) 14103 * - RtR queue 14104 * - incoming queue 14105 * 14106 * If those queues are empty, we break out of the loop and 14107 * go to sleep. 14108 */ 14109 mtx_lock(&thr->queue_lock); 14110 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14111 if (io != NULL) { 14112 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14113 mtx_unlock(&thr->queue_lock); 14114 ctl_handle_isc(io); 14115 continue; 14116 } 14117 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14118 if (io != NULL) { 14119 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14120 /* clear any blocked commands, call fe_done */ 14121 mtx_unlock(&thr->queue_lock); 14122 retval = ctl_process_done(io); 14123 continue; 14124 } 14125 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14126 if (io != NULL) { 14127 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14128 mtx_unlock(&thr->queue_lock); 14129 if (io->io_hdr.io_type == CTL_IO_TASK) 14130 ctl_run_task(io); 14131 else 14132 ctl_scsiio_precheck(softc, &io->scsiio); 14133 continue; 14134 } 14135 if (!ctl_pause_rtr) { 14136 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14137 if (io != NULL) { 14138 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14139 mtx_unlock(&thr->queue_lock); 14140 retval = ctl_scsiio(&io->scsiio); 14141 if (retval != CTL_RETVAL_COMPLETE) 14142 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14143 continue; 14144 } 14145 } 14146 14147 /* Sleep until we have something to do. */ 14148 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14149 } 14150} 14151 14152static void 14153ctl_lun_thread(void *arg) 14154{ 14155 struct ctl_softc *softc = (struct ctl_softc *)arg; 14156 struct ctl_be_lun *be_lun; 14157 int retval; 14158 14159 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14160 14161 for (;;) { 14162 retval = 0; 14163 mtx_lock(&softc->ctl_lock); 14164 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14165 if (be_lun != NULL) { 14166 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14167 mtx_unlock(&softc->ctl_lock); 14168 ctl_create_lun(be_lun); 14169 continue; 14170 } 14171 14172 /* Sleep until we have something to do. */ 14173 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14174 PDROP | PRIBIO, "-", 0); 14175 } 14176} 14177 14178static void 14179ctl_enqueue_incoming(union ctl_io *io) 14180{ 14181 struct ctl_softc *softc = control_softc; 14182 struct ctl_thread *thr; 14183 u_int idx; 14184 14185 idx = (io->io_hdr.nexus.targ_port * 127 + 14186 io->io_hdr.nexus.initid.id) % worker_threads; 14187 thr = &softc->threads[idx]; 14188 mtx_lock(&thr->queue_lock); 14189 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14190 mtx_unlock(&thr->queue_lock); 14191 wakeup(thr); 14192} 14193 14194static void 14195ctl_enqueue_rtr(union ctl_io *io) 14196{ 14197 struct ctl_softc *softc = control_softc; 14198 struct ctl_thread *thr; 14199 14200 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14201 mtx_lock(&thr->queue_lock); 14202 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14203 mtx_unlock(&thr->queue_lock); 14204 wakeup(thr); 14205} 14206 14207static void 14208ctl_enqueue_done(union ctl_io *io) 14209{ 14210 struct ctl_softc *softc = control_softc; 14211 struct ctl_thread *thr; 14212 14213 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14214 mtx_lock(&thr->queue_lock); 14215 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14216 mtx_unlock(&thr->queue_lock); 14217 wakeup(thr); 14218} 14219 14220static void 14221ctl_enqueue_isc(union ctl_io *io) 14222{ 14223 struct ctl_softc *softc = control_softc; 14224 struct ctl_thread *thr; 14225 14226 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14227 mtx_lock(&thr->queue_lock); 14228 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14229 mtx_unlock(&thr->queue_lock); 14230 wakeup(thr); 14231} 14232 14233/* Initialization and failover */ 14234 14235void 14236ctl_init_isc_msg(void) 14237{ 14238 printf("CTL: Still calling this thing\n"); 14239} 14240 14241/* 14242 * Init component 14243 * Initializes component into configuration defined by bootMode 14244 * (see hasc-sv.c) 14245 * returns hasc_Status: 14246 * OK 14247 * ERROR - fatal error 14248 */ 14249static ctl_ha_comp_status 14250ctl_isc_init(struct ctl_ha_component *c) 14251{ 14252 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14253 14254 c->status = ret; 14255 return ret; 14256} 14257 14258/* Start component 14259 * Starts component in state requested. If component starts successfully, 14260 * it must set its own state to the requestrd state 14261 * When requested state is HASC_STATE_HA, the component may refine it 14262 * by adding _SLAVE or _MASTER flags. 14263 * Currently allowed state transitions are: 14264 * UNKNOWN->HA - initial startup 14265 * UNKNOWN->SINGLE - initial startup when no parter detected 14266 * HA->SINGLE - failover 14267 * returns ctl_ha_comp_status: 14268 * OK - component successfully started in requested state 14269 * FAILED - could not start the requested state, failover may 14270 * be possible 14271 * ERROR - fatal error detected, no future startup possible 14272 */ 14273static ctl_ha_comp_status 14274ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14275{ 14276 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14277 14278 printf("%s: go\n", __func__); 14279 14280 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14281 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14282 ctl_is_single = 0; 14283 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14284 != CTL_HA_STATUS_SUCCESS) { 14285 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14286 ret = CTL_HA_COMP_STATUS_ERROR; 14287 } 14288 } else if (CTL_HA_STATE_IS_HA(c->state) 14289 && CTL_HA_STATE_IS_SINGLE(state)){ 14290 // HA->SINGLE transition 14291 ctl_failover(); 14292 ctl_is_single = 1; 14293 } else { 14294 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14295 c->state, state); 14296 ret = CTL_HA_COMP_STATUS_ERROR; 14297 } 14298 if (CTL_HA_STATE_IS_SINGLE(state)) 14299 ctl_is_single = 1; 14300 14301 c->state = state; 14302 c->status = ret; 14303 return ret; 14304} 14305 14306/* 14307 * Quiesce component 14308 * The component must clear any error conditions (set status to OK) and 14309 * prepare itself to another Start call 14310 * returns ctl_ha_comp_status: 14311 * OK 14312 * ERROR 14313 */ 14314static ctl_ha_comp_status 14315ctl_isc_quiesce(struct ctl_ha_component *c) 14316{ 14317 int ret = CTL_HA_COMP_STATUS_OK; 14318 14319 ctl_pause_rtr = 1; 14320 c->status = ret; 14321 return ret; 14322} 14323 14324struct ctl_ha_component ctl_ha_component_ctlisc = 14325{ 14326 .name = "CTL ISC", 14327 .state = CTL_HA_STATE_UNKNOWN, 14328 .init = ctl_isc_init, 14329 .start = ctl_isc_start, 14330 .quiesce = ctl_isc_quiesce 14331}; 14332 14333/* 14334 * vim: ts=8 14335 */ 14336