ctl.c revision 273323
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 273323 2014-10-20 08:07:29Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/kernel.h> 50#include <sys/types.h> 51#include <sys/kthread.h> 52#include <sys/bio.h> 53#include <sys/fcntl.h> 54#include <sys/lock.h> 55#include <sys/module.h> 56#include <sys/mutex.h> 57#include <sys/condvar.h> 58#include <sys/malloc.h> 59#include <sys/conf.h> 60#include <sys/ioccom.h> 61#include <sys/queue.h> 62#include <sys/sbuf.h> 63#include <sys/smp.h> 64#include <sys/endian.h> 65#include <sys/sysctl.h> 66 67#include <cam/cam.h> 68#include <cam/scsi/scsi_all.h> 69#include <cam/scsi/scsi_da.h> 70#include <cam/ctl/ctl_io.h> 71#include <cam/ctl/ctl.h> 72#include <cam/ctl/ctl_frontend.h> 73#include <cam/ctl/ctl_frontend_internal.h> 74#include <cam/ctl/ctl_util.h> 75#include <cam/ctl/ctl_backend.h> 76#include <cam/ctl/ctl_ioctl.h> 77#include <cam/ctl/ctl_ha.h> 78#include <cam/ctl/ctl_private.h> 79#include <cam/ctl/ctl_debug.h> 80#include <cam/ctl/ctl_scsi_all.h> 81#include <cam/ctl/ctl_error.h> 82 83struct ctl_softc *control_softc = NULL; 84 85/* 86 * Size and alignment macros needed for Copan-specific HA hardware. These 87 * can go away when the HA code is re-written, and uses busdma for any 88 * hardware. 89 */ 90#define CTL_ALIGN_8B(target, source, type) \ 91 if (((uint32_t)source & 0x7) != 0) \ 92 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 93 else \ 94 target = (type)source; 95 96#define CTL_SIZE_8B(target, size) \ 97 if ((size & 0x7) != 0) \ 98 target = size + (0x8 - (size & 0x7)); \ 99 else \ 100 target = size; 101 102#define CTL_ALIGN_8B_MARGIN 16 103 104/* 105 * Template mode pages. 106 */ 107 108/* 109 * Note that these are default values only. The actual values will be 110 * filled in when the user does a mode sense. 111 */ 112static struct copan_power_subpage power_page_default = { 113 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 114 /*subpage*/ PWR_SUBPAGE_CODE, 115 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 116 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 117 /*page_version*/ PWR_VERSION, 118 /* total_luns */ 26, 119 /* max_active_luns*/ PWR_DFLT_MAX_LUNS, 120 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 121 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 122 0, 0, 0, 0, 0, 0} 123}; 124 125static struct copan_power_subpage power_page_changeable = { 126 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 127 /*subpage*/ PWR_SUBPAGE_CODE, 128 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 129 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 130 /*page_version*/ 0, 131 /* total_luns */ 0, 132 /* max_active_luns*/ 0, 133 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 134 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135 0, 0, 0, 0, 0, 0} 136}; 137 138static struct copan_aps_subpage aps_page_default = { 139 APS_PAGE_CODE | SMPH_SPF, //page_code 140 APS_SUBPAGE_CODE, //subpage 141 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 142 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 143 APS_VERSION, //page_version 144 0, //lock_active 145 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 147 0, 0, 0, 0, 0} //reserved 148}; 149 150static struct copan_aps_subpage aps_page_changeable = { 151 APS_PAGE_CODE | SMPH_SPF, //page_code 152 APS_SUBPAGE_CODE, //subpage 153 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 154 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 155 0, //page_version 156 0, //lock_active 157 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 158 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 159 0, 0, 0, 0, 0} //reserved 160}; 161 162static struct copan_debugconf_subpage debugconf_page_default = { 163 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 164 DBGCNF_SUBPAGE_CODE, /* subpage */ 165 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 166 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 167 DBGCNF_VERSION, /* page_version */ 168 {CTL_TIME_IO_DEFAULT_SECS>>8, 169 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 170}; 171 172static struct copan_debugconf_subpage debugconf_page_changeable = { 173 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 174 DBGCNF_SUBPAGE_CODE, /* subpage */ 175 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 176 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 177 0, /* page_version */ 178 {0xff,0xff}, /* ctl_time_io_secs */ 179}; 180 181static struct scsi_format_page format_page_default = { 182 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 183 /*page_length*/sizeof(struct scsi_format_page) - 2, 184 /*tracks_per_zone*/ {0, 0}, 185 /*alt_sectors_per_zone*/ {0, 0}, 186 /*alt_tracks_per_zone*/ {0, 0}, 187 /*alt_tracks_per_lun*/ {0, 0}, 188 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 189 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 190 /*bytes_per_sector*/ {0, 0}, 191 /*interleave*/ {0, 0}, 192 /*track_skew*/ {0, 0}, 193 /*cylinder_skew*/ {0, 0}, 194 /*flags*/ SFP_HSEC, 195 /*reserved*/ {0, 0, 0} 196}; 197 198static struct scsi_format_page format_page_changeable = { 199 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 200 /*page_length*/sizeof(struct scsi_format_page) - 2, 201 /*tracks_per_zone*/ {0, 0}, 202 /*alt_sectors_per_zone*/ {0, 0}, 203 /*alt_tracks_per_zone*/ {0, 0}, 204 /*alt_tracks_per_lun*/ {0, 0}, 205 /*sectors_per_track*/ {0, 0}, 206 /*bytes_per_sector*/ {0, 0}, 207 /*interleave*/ {0, 0}, 208 /*track_skew*/ {0, 0}, 209 /*cylinder_skew*/ {0, 0}, 210 /*flags*/ 0, 211 /*reserved*/ {0, 0, 0} 212}; 213 214static struct scsi_rigid_disk_page rigid_disk_page_default = { 215 /*page_code*/SMS_RIGID_DISK_PAGE, 216 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 217 /*cylinders*/ {0, 0, 0}, 218 /*heads*/ CTL_DEFAULT_HEADS, 219 /*start_write_precomp*/ {0, 0, 0}, 220 /*start_reduced_current*/ {0, 0, 0}, 221 /*step_rate*/ {0, 0}, 222 /*landing_zone_cylinder*/ {0, 0, 0}, 223 /*rpl*/ SRDP_RPL_DISABLED, 224 /*rotational_offset*/ 0, 225 /*reserved1*/ 0, 226 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 227 CTL_DEFAULT_ROTATION_RATE & 0xff}, 228 /*reserved2*/ {0, 0} 229}; 230 231static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 232 /*page_code*/SMS_RIGID_DISK_PAGE, 233 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 234 /*cylinders*/ {0, 0, 0}, 235 /*heads*/ 0, 236 /*start_write_precomp*/ {0, 0, 0}, 237 /*start_reduced_current*/ {0, 0, 0}, 238 /*step_rate*/ {0, 0}, 239 /*landing_zone_cylinder*/ {0, 0, 0}, 240 /*rpl*/ 0, 241 /*rotational_offset*/ 0, 242 /*reserved1*/ 0, 243 /*rotation_rate*/ {0, 0}, 244 /*reserved2*/ {0, 0} 245}; 246 247static struct scsi_caching_page caching_page_default = { 248 /*page_code*/SMS_CACHING_PAGE, 249 /*page_length*/sizeof(struct scsi_caching_page) - 2, 250 /*flags1*/ SCP_DISC | SCP_WCE, 251 /*ret_priority*/ 0, 252 /*disable_pf_transfer_len*/ {0xff, 0xff}, 253 /*min_prefetch*/ {0, 0}, 254 /*max_prefetch*/ {0xff, 0xff}, 255 /*max_pf_ceiling*/ {0xff, 0xff}, 256 /*flags2*/ 0, 257 /*cache_segments*/ 0, 258 /*cache_seg_size*/ {0, 0}, 259 /*reserved*/ 0, 260 /*non_cache_seg_size*/ {0, 0, 0} 261}; 262 263static struct scsi_caching_page caching_page_changeable = { 264 /*page_code*/SMS_CACHING_PAGE, 265 /*page_length*/sizeof(struct scsi_caching_page) - 2, 266 /*flags1*/ SCP_WCE | SCP_RCD, 267 /*ret_priority*/ 0, 268 /*disable_pf_transfer_len*/ {0, 0}, 269 /*min_prefetch*/ {0, 0}, 270 /*max_prefetch*/ {0, 0}, 271 /*max_pf_ceiling*/ {0, 0}, 272 /*flags2*/ 0, 273 /*cache_segments*/ 0, 274 /*cache_seg_size*/ {0, 0}, 275 /*reserved*/ 0, 276 /*non_cache_seg_size*/ {0, 0, 0} 277}; 278 279static struct scsi_control_page control_page_default = { 280 /*page_code*/SMS_CONTROL_MODE_PAGE, 281 /*page_length*/sizeof(struct scsi_control_page) - 2, 282 /*rlec*/0, 283 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 284 /*eca_and_aen*/0, 285 /*flags4*/SCP_TAS, 286 /*aen_holdoff_period*/{0, 0}, 287 /*busy_timeout_period*/{0, 0}, 288 /*extended_selftest_completion_time*/{0, 0} 289}; 290 291static struct scsi_control_page control_page_changeable = { 292 /*page_code*/SMS_CONTROL_MODE_PAGE, 293 /*page_length*/sizeof(struct scsi_control_page) - 2, 294 /*rlec*/SCP_DSENSE, 295 /*queue_flags*/SCP_QUEUE_ALG_MASK, 296 /*eca_and_aen*/SCP_SWP, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301}; 302 303 304/* 305 * XXX KDM move these into the softc. 306 */ 307static int rcv_sync_msg; 308static int persis_offset; 309static uint8_t ctl_pause_rtr; 310static int ctl_is_single = 1; 311static int index_to_aps_page; 312 313SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314static int worker_threads = -1; 315TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 316SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 317 &worker_threads, 1, "Number of worker threads"); 318static int verbose = 0; 319TUNABLE_INT("kern.cam.ctl.verbose", &verbose); 320SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 321 &verbose, 0, "Show SCSI errors returned to initiator"); 322 323/* 324 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 325 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 326 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 327 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 328 */ 329#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 330 331static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 332 int param); 333static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 334static int ctl_init(void); 335void ctl_shutdown(void); 336static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 337static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 338static void ctl_ioctl_online(void *arg); 339static void ctl_ioctl_offline(void *arg); 340static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 341static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 342static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 343static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 344static int ctl_ioctl_submit_wait(union ctl_io *io); 345static void ctl_ioctl_datamove(union ctl_io *io); 346static void ctl_ioctl_done(union ctl_io *io); 347static void ctl_ioctl_hard_startstop_callback(void *arg, 348 struct cfi_metatask *metatask); 349static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 350static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 351 struct ctl_ooa *ooa_hdr, 352 struct ctl_ooa_entry *kern_entries); 353static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 354 struct thread *td); 355static uint32_t ctl_map_lun(int port_num, uint32_t lun); 356static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 357#ifdef unused 358static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 359 uint32_t targ_target, uint32_t targ_lun, 360 int can_wait); 361static void ctl_kfree_io(union ctl_io *io); 362#endif /* unused */ 363static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 364 struct ctl_be_lun *be_lun, struct ctl_id target_id); 365static int ctl_free_lun(struct ctl_lun *lun); 366static void ctl_create_lun(struct ctl_be_lun *be_lun); 367/** 368static void ctl_failover_change_pages(struct ctl_softc *softc, 369 struct ctl_scsiio *ctsio, int master); 370**/ 371 372static int ctl_do_mode_select(union ctl_io *io); 373static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 374 uint64_t res_key, uint64_t sa_res_key, 375 uint8_t type, uint32_t residx, 376 struct ctl_scsiio *ctsio, 377 struct scsi_per_res_out *cdb, 378 struct scsi_per_res_out_parms* param); 379static void ctl_pro_preempt_other(struct ctl_lun *lun, 380 union ctl_ha_msg *msg); 381static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 382static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 383static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 384static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 385static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 386static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 387static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 388 int alloc_len); 389static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 390 int alloc_len); 391static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 392static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 393static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 394static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 395static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 396static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 397static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 398 union ctl_io *pending_io, union ctl_io *ooa_io); 399static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 400 union ctl_io *starting_io); 401static int ctl_check_blocked(struct ctl_lun *lun); 402static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 403 struct ctl_lun *lun, 404 const struct ctl_cmd_entry *entry, 405 struct ctl_scsiio *ctsio); 406//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 407static void ctl_failover(void); 408static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 409 struct ctl_scsiio *ctsio); 410static int ctl_scsiio(struct ctl_scsiio *ctsio); 411 412static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 413static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 414 ctl_ua_type ua_type); 415static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 416 ctl_ua_type ua_type); 417static int ctl_abort_task(union ctl_io *io); 418static int ctl_abort_task_set(union ctl_io *io); 419static int ctl_i_t_nexus_reset(union ctl_io *io); 420static void ctl_run_task(union ctl_io *io); 421#ifdef CTL_IO_DELAY 422static void ctl_datamove_timer_wakeup(void *arg); 423static void ctl_done_timer_wakeup(void *arg); 424#endif /* CTL_IO_DELAY */ 425 426static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 427static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 428static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 429static void ctl_datamove_remote_write(union ctl_io *io); 430static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 431static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 432static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 433static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 434 ctl_ha_dt_cb callback); 435static void ctl_datamove_remote_read(union ctl_io *io); 436static void ctl_datamove_remote(union ctl_io *io); 437static int ctl_process_done(union ctl_io *io); 438static void ctl_lun_thread(void *arg); 439static void ctl_work_thread(void *arg); 440static void ctl_enqueue_incoming(union ctl_io *io); 441static void ctl_enqueue_rtr(union ctl_io *io); 442static void ctl_enqueue_done(union ctl_io *io); 443static void ctl_enqueue_isc(union ctl_io *io); 444static const struct ctl_cmd_entry * 445 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 446static const struct ctl_cmd_entry * 447 ctl_validate_command(struct ctl_scsiio *ctsio); 448static int ctl_cmd_applicable(uint8_t lun_type, 449 const struct ctl_cmd_entry *entry); 450 451/* 452 * Load the serialization table. This isn't very pretty, but is probably 453 * the easiest way to do it. 454 */ 455#include "ctl_ser_table.c" 456 457/* 458 * We only need to define open, close and ioctl routines for this driver. 459 */ 460static struct cdevsw ctl_cdevsw = { 461 .d_version = D_VERSION, 462 .d_flags = 0, 463 .d_open = ctl_open, 464 .d_close = ctl_close, 465 .d_ioctl = ctl_ioctl, 466 .d_name = "ctl", 467}; 468 469 470MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 471MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 472 473static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 474 475static moduledata_t ctl_moduledata = { 476 "ctl", 477 ctl_module_event_handler, 478 NULL 479}; 480 481DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 482MODULE_VERSION(ctl, 1); 483 484static struct ctl_frontend ioctl_frontend = 485{ 486 .name = "ioctl", 487}; 488 489static void 490ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 491 union ctl_ha_msg *msg_info) 492{ 493 struct ctl_scsiio *ctsio; 494 495 if (msg_info->hdr.original_sc == NULL) { 496 printf("%s: original_sc == NULL!\n", __func__); 497 /* XXX KDM now what? */ 498 return; 499 } 500 501 ctsio = &msg_info->hdr.original_sc->scsiio; 502 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 503 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 504 ctsio->io_hdr.status = msg_info->hdr.status; 505 ctsio->scsi_status = msg_info->scsi.scsi_status; 506 ctsio->sense_len = msg_info->scsi.sense_len; 507 ctsio->sense_residual = msg_info->scsi.sense_residual; 508 ctsio->residual = msg_info->scsi.residual; 509 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 510 sizeof(ctsio->sense_data)); 511 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 512 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 513 ctl_enqueue_isc((union ctl_io *)ctsio); 514} 515 516static void 517ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 518 union ctl_ha_msg *msg_info) 519{ 520 struct ctl_scsiio *ctsio; 521 522 if (msg_info->hdr.serializing_sc == NULL) { 523 printf("%s: serializing_sc == NULL!\n", __func__); 524 /* XXX KDM now what? */ 525 return; 526 } 527 528 ctsio = &msg_info->hdr.serializing_sc->scsiio; 529#if 0 530 /* 531 * Attempt to catch the situation where an I/O has 532 * been freed, and we're using it again. 533 */ 534 if (ctsio->io_hdr.io_type == 0xff) { 535 union ctl_io *tmp_io; 536 tmp_io = (union ctl_io *)ctsio; 537 printf("%s: %p use after free!\n", __func__, 538 ctsio); 539 printf("%s: type %d msg %d cdb %x iptl: " 540 "%d:%d:%d:%d tag 0x%04x " 541 "flag %#x status %x\n", 542 __func__, 543 tmp_io->io_hdr.io_type, 544 tmp_io->io_hdr.msg_type, 545 tmp_io->scsiio.cdb[0], 546 tmp_io->io_hdr.nexus.initid.id, 547 tmp_io->io_hdr.nexus.targ_port, 548 tmp_io->io_hdr.nexus.targ_target.id, 549 tmp_io->io_hdr.nexus.targ_lun, 550 (tmp_io->io_hdr.io_type == 551 CTL_IO_TASK) ? 552 tmp_io->taskio.tag_num : 553 tmp_io->scsiio.tag_num, 554 tmp_io->io_hdr.flags, 555 tmp_io->io_hdr.status); 556 } 557#endif 558 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 559 ctl_enqueue_isc((union ctl_io *)ctsio); 560} 561 562/* 563 * ISC (Inter Shelf Communication) event handler. Events from the HA 564 * subsystem come in here. 565 */ 566static void 567ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 568{ 569 struct ctl_softc *ctl_softc; 570 union ctl_io *io; 571 struct ctl_prio *presio; 572 ctl_ha_status isc_status; 573 574 ctl_softc = control_softc; 575 io = NULL; 576 577 578#if 0 579 printf("CTL: Isc Msg event %d\n", event); 580#endif 581 if (event == CTL_HA_EVT_MSG_RECV) { 582 union ctl_ha_msg msg_info; 583 584 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 585 sizeof(msg_info), /*wait*/ 0); 586#if 0 587 printf("CTL: msg_type %d\n", msg_info.msg_type); 588#endif 589 if (isc_status != 0) { 590 printf("Error receiving message, status = %d\n", 591 isc_status); 592 return; 593 } 594 595 switch (msg_info.hdr.msg_type) { 596 case CTL_MSG_SERIALIZE: 597#if 0 598 printf("Serialize\n"); 599#endif 600 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 601 if (io == NULL) { 602 printf("ctl_isc_event_handler: can't allocate " 603 "ctl_io!\n"); 604 /* Bad Juju */ 605 /* Need to set busy and send msg back */ 606 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 607 msg_info.hdr.status = CTL_SCSI_ERROR; 608 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 609 msg_info.scsi.sense_len = 0; 610 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 611 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 612 } 613 goto bailout; 614 } 615 ctl_zero_io(io); 616 // populate ctsio from msg_info 617 io->io_hdr.io_type = CTL_IO_SCSI; 618 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 619 io->io_hdr.original_sc = msg_info.hdr.original_sc; 620#if 0 621 printf("pOrig %x\n", (int)msg_info.original_sc); 622#endif 623 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 624 CTL_FLAG_IO_ACTIVE; 625 /* 626 * If we're in serialization-only mode, we don't 627 * want to go through full done processing. Thus 628 * the COPY flag. 629 * 630 * XXX KDM add another flag that is more specific. 631 */ 632 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 633 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 634 io->io_hdr.nexus = msg_info.hdr.nexus; 635#if 0 636 printf("targ %d, port %d, iid %d, lun %d\n", 637 io->io_hdr.nexus.targ_target.id, 638 io->io_hdr.nexus.targ_port, 639 io->io_hdr.nexus.initid.id, 640 io->io_hdr.nexus.targ_lun); 641#endif 642 io->scsiio.tag_num = msg_info.scsi.tag_num; 643 io->scsiio.tag_type = msg_info.scsi.tag_type; 644 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 645 CTL_MAX_CDBLEN); 646 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 647 const struct ctl_cmd_entry *entry; 648 649 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 650 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 651 io->io_hdr.flags |= 652 entry->flags & CTL_FLAG_DATA_MASK; 653 } 654 ctl_enqueue_isc(io); 655 break; 656 657 /* Performed on the Originating SC, XFER mode only */ 658 case CTL_MSG_DATAMOVE: { 659 struct ctl_sg_entry *sgl; 660 int i, j; 661 662 io = msg_info.hdr.original_sc; 663 if (io == NULL) { 664 printf("%s: original_sc == NULL!\n", __func__); 665 /* XXX KDM do something here */ 666 break; 667 } 668 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 669 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 670 /* 671 * Keep track of this, we need to send it back over 672 * when the datamove is complete. 673 */ 674 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 675 676 if (msg_info.dt.sg_sequence == 0) { 677 /* 678 * XXX KDM we use the preallocated S/G list 679 * here, but we'll need to change this to 680 * dynamic allocation if we need larger S/G 681 * lists. 682 */ 683 if (msg_info.dt.kern_sg_entries > 684 sizeof(io->io_hdr.remote_sglist) / 685 sizeof(io->io_hdr.remote_sglist[0])) { 686 printf("%s: number of S/G entries " 687 "needed %u > allocated num %zd\n", 688 __func__, 689 msg_info.dt.kern_sg_entries, 690 sizeof(io->io_hdr.remote_sglist)/ 691 sizeof(io->io_hdr.remote_sglist[0])); 692 693 /* 694 * XXX KDM send a message back to 695 * the other side to shut down the 696 * DMA. The error will come back 697 * through via the normal channel. 698 */ 699 break; 700 } 701 sgl = io->io_hdr.remote_sglist; 702 memset(sgl, 0, 703 sizeof(io->io_hdr.remote_sglist)); 704 705 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 706 707 io->scsiio.kern_sg_entries = 708 msg_info.dt.kern_sg_entries; 709 io->scsiio.rem_sg_entries = 710 msg_info.dt.kern_sg_entries; 711 io->scsiio.kern_data_len = 712 msg_info.dt.kern_data_len; 713 io->scsiio.kern_total_len = 714 msg_info.dt.kern_total_len; 715 io->scsiio.kern_data_resid = 716 msg_info.dt.kern_data_resid; 717 io->scsiio.kern_rel_offset = 718 msg_info.dt.kern_rel_offset; 719 /* 720 * Clear out per-DMA flags. 721 */ 722 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 723 /* 724 * Add per-DMA flags that are set for this 725 * particular DMA request. 726 */ 727 io->io_hdr.flags |= msg_info.dt.flags & 728 CTL_FLAG_RDMA_MASK; 729 } else 730 sgl = (struct ctl_sg_entry *) 731 io->scsiio.kern_data_ptr; 732 733 for (i = msg_info.dt.sent_sg_entries, j = 0; 734 i < (msg_info.dt.sent_sg_entries + 735 msg_info.dt.cur_sg_entries); i++, j++) { 736 sgl[i].addr = msg_info.dt.sg_list[j].addr; 737 sgl[i].len = msg_info.dt.sg_list[j].len; 738 739#if 0 740 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 741 __func__, 742 msg_info.dt.sg_list[j].addr, 743 msg_info.dt.sg_list[j].len, 744 sgl[i].addr, sgl[i].len, j, i); 745#endif 746 } 747#if 0 748 memcpy(&sgl[msg_info.dt.sent_sg_entries], 749 msg_info.dt.sg_list, 750 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 751#endif 752 753 /* 754 * If this is the last piece of the I/O, we've got 755 * the full S/G list. Queue processing in the thread. 756 * Otherwise wait for the next piece. 757 */ 758 if (msg_info.dt.sg_last != 0) 759 ctl_enqueue_isc(io); 760 break; 761 } 762 /* Performed on the Serializing (primary) SC, XFER mode only */ 763 case CTL_MSG_DATAMOVE_DONE: { 764 if (msg_info.hdr.serializing_sc == NULL) { 765 printf("%s: serializing_sc == NULL!\n", 766 __func__); 767 /* XXX KDM now what? */ 768 break; 769 } 770 /* 771 * We grab the sense information here in case 772 * there was a failure, so we can return status 773 * back to the initiator. 774 */ 775 io = msg_info.hdr.serializing_sc; 776 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 777 io->io_hdr.status = msg_info.hdr.status; 778 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 779 io->scsiio.sense_len = msg_info.scsi.sense_len; 780 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 781 io->io_hdr.port_status = msg_info.scsi.fetd_status; 782 io->scsiio.residual = msg_info.scsi.residual; 783 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 784 sizeof(io->scsiio.sense_data)); 785 ctl_enqueue_isc(io); 786 break; 787 } 788 789 /* Preformed on Originating SC, SER_ONLY mode */ 790 case CTL_MSG_R2R: 791 io = msg_info.hdr.original_sc; 792 if (io == NULL) { 793 printf("%s: Major Bummer\n", __func__); 794 return; 795 } else { 796#if 0 797 printf("pOrig %x\n",(int) ctsio); 798#endif 799 } 800 io->io_hdr.msg_type = CTL_MSG_R2R; 801 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 802 ctl_enqueue_isc(io); 803 break; 804 805 /* 806 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 807 * mode. 808 * Performed on the Originating (i.e. secondary) SC in XFER 809 * mode 810 */ 811 case CTL_MSG_FINISH_IO: 812 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 813 ctl_isc_handler_finish_xfer(ctl_softc, 814 &msg_info); 815 else 816 ctl_isc_handler_finish_ser_only(ctl_softc, 817 &msg_info); 818 break; 819 820 /* Preformed on Originating SC */ 821 case CTL_MSG_BAD_JUJU: 822 io = msg_info.hdr.original_sc; 823 if (io == NULL) { 824 printf("%s: Bad JUJU!, original_sc is NULL!\n", 825 __func__); 826 break; 827 } 828 ctl_copy_sense_data(&msg_info, io); 829 /* 830 * IO should have already been cleaned up on other 831 * SC so clear this flag so we won't send a message 832 * back to finish the IO there. 833 */ 834 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 835 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 836 837 /* io = msg_info.hdr.serializing_sc; */ 838 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 839 ctl_enqueue_isc(io); 840 break; 841 842 /* Handle resets sent from the other side */ 843 case CTL_MSG_MANAGE_TASKS: { 844 struct ctl_taskio *taskio; 845 taskio = (struct ctl_taskio *)ctl_alloc_io( 846 (void *)ctl_softc->othersc_pool); 847 if (taskio == NULL) { 848 printf("ctl_isc_event_handler: can't allocate " 849 "ctl_io!\n"); 850 /* Bad Juju */ 851 /* should I just call the proper reset func 852 here??? */ 853 goto bailout; 854 } 855 ctl_zero_io((union ctl_io *)taskio); 856 taskio->io_hdr.io_type = CTL_IO_TASK; 857 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 858 taskio->io_hdr.nexus = msg_info.hdr.nexus; 859 taskio->task_action = msg_info.task.task_action; 860 taskio->tag_num = msg_info.task.tag_num; 861 taskio->tag_type = msg_info.task.tag_type; 862#ifdef CTL_TIME_IO 863 taskio->io_hdr.start_time = time_uptime; 864 getbintime(&taskio->io_hdr.start_bt); 865#if 0 866 cs_prof_gettime(&taskio->io_hdr.start_ticks); 867#endif 868#endif /* CTL_TIME_IO */ 869 ctl_run_task((union ctl_io *)taskio); 870 break; 871 } 872 /* Persistent Reserve action which needs attention */ 873 case CTL_MSG_PERS_ACTION: 874 presio = (struct ctl_prio *)ctl_alloc_io( 875 (void *)ctl_softc->othersc_pool); 876 if (presio == NULL) { 877 printf("ctl_isc_event_handler: can't allocate " 878 "ctl_io!\n"); 879 /* Bad Juju */ 880 /* Need to set busy and send msg back */ 881 goto bailout; 882 } 883 ctl_zero_io((union ctl_io *)presio); 884 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 885 presio->pr_msg = msg_info.pr; 886 ctl_enqueue_isc((union ctl_io *)presio); 887 break; 888 case CTL_MSG_SYNC_FE: 889 rcv_sync_msg = 1; 890 break; 891 case CTL_MSG_APS_LOCK: { 892 // It's quicker to execute this then to 893 // queue it. 894 struct ctl_lun *lun; 895 struct ctl_page_index *page_index; 896 struct copan_aps_subpage *current_sp; 897 uint32_t targ_lun; 898 899 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 900 lun = ctl_softc->ctl_luns[targ_lun]; 901 mtx_lock(&lun->lun_lock); 902 page_index = &lun->mode_pages.index[index_to_aps_page]; 903 current_sp = (struct copan_aps_subpage *) 904 (page_index->page_data + 905 (page_index->page_len * CTL_PAGE_CURRENT)); 906 907 current_sp->lock_active = msg_info.aps.lock_flag; 908 mtx_unlock(&lun->lun_lock); 909 break; 910 } 911 default: 912 printf("How did I get here?\n"); 913 } 914 } else if (event == CTL_HA_EVT_MSG_SENT) { 915 if (param != CTL_HA_STATUS_SUCCESS) { 916 printf("Bad status from ctl_ha_msg_send status %d\n", 917 param); 918 } 919 return; 920 } else if (event == CTL_HA_EVT_DISCONNECT) { 921 printf("CTL: Got a disconnect from Isc\n"); 922 return; 923 } else { 924 printf("ctl_isc_event_handler: Unknown event %d\n", event); 925 return; 926 } 927 928bailout: 929 return; 930} 931 932static void 933ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 934{ 935 struct scsi_sense_data *sense; 936 937 sense = &dest->scsiio.sense_data; 938 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 939 dest->scsiio.scsi_status = src->scsi.scsi_status; 940 dest->scsiio.sense_len = src->scsi.sense_len; 941 dest->io_hdr.status = src->hdr.status; 942} 943 944static int 945ctl_init(void) 946{ 947 struct ctl_softc *softc; 948 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 949 struct ctl_port *port; 950 uint8_t sc_id =0; 951 int i, error, retval; 952 //int isc_retval; 953 954 retval = 0; 955 ctl_pause_rtr = 0; 956 rcv_sync_msg = 0; 957 958 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 959 M_WAITOK | M_ZERO); 960 softc = control_softc; 961 962 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 963 "cam/ctl"); 964 965 softc->dev->si_drv1 = softc; 966 967 /* 968 * By default, return a "bad LUN" peripheral qualifier for unknown 969 * LUNs. The user can override this default using the tunable or 970 * sysctl. See the comment in ctl_inquiry_std() for more details. 971 */ 972 softc->inquiry_pq_no_lun = 1; 973 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 974 &softc->inquiry_pq_no_lun); 975 sysctl_ctx_init(&softc->sysctl_ctx); 976 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 977 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 978 CTLFLAG_RD, 0, "CAM Target Layer"); 979 980 if (softc->sysctl_tree == NULL) { 981 printf("%s: unable to allocate sysctl tree\n", __func__); 982 destroy_dev(softc->dev); 983 free(control_softc, M_DEVBUF); 984 control_softc = NULL; 985 return (ENOMEM); 986 } 987 988 SYSCTL_ADD_INT(&softc->sysctl_ctx, 989 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 990 "inquiry_pq_no_lun", CTLFLAG_RW, 991 &softc->inquiry_pq_no_lun, 0, 992 "Report no lun possible for invalid LUNs"); 993 994 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 995 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 996 softc->open_count = 0; 997 998 /* 999 * Default to actually sending a SYNCHRONIZE CACHE command down to 1000 * the drive. 1001 */ 1002 softc->flags = CTL_FLAG_REAL_SYNC; 1003 1004 /* 1005 * In Copan's HA scheme, the "master" and "slave" roles are 1006 * figured out through the slot the controller is in. Although it 1007 * is an active/active system, someone has to be in charge. 1008 */ 1009#ifdef NEEDTOPORT 1010 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1011#endif 1012 1013 if (sc_id == 0) { 1014 softc->flags |= CTL_FLAG_MASTER_SHELF; 1015 persis_offset = 0; 1016 } else 1017 persis_offset = CTL_MAX_INITIATORS; 1018 1019 /* 1020 * XXX KDM need to figure out where we want to get our target ID 1021 * and WWID. Is it different on each port? 1022 */ 1023 softc->target.id = 0; 1024 softc->target.wwid[0] = 0x12345678; 1025 softc->target.wwid[1] = 0x87654321; 1026 STAILQ_INIT(&softc->lun_list); 1027 STAILQ_INIT(&softc->pending_lun_queue); 1028 STAILQ_INIT(&softc->fe_list); 1029 STAILQ_INIT(&softc->port_list); 1030 STAILQ_INIT(&softc->be_list); 1031 STAILQ_INIT(&softc->io_pools); 1032 ctl_tpc_init(softc); 1033 1034 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1035 &internal_pool)!= 0){ 1036 printf("ctl: can't allocate %d entry internal pool, " 1037 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1038 return (ENOMEM); 1039 } 1040 1041 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1042 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1043 printf("ctl: can't allocate %d entry emergency pool, " 1044 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1045 ctl_pool_free(internal_pool); 1046 return (ENOMEM); 1047 } 1048 1049 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1050 &other_pool) != 0) 1051 { 1052 printf("ctl: can't allocate %d entry other SC pool, " 1053 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1054 ctl_pool_free(internal_pool); 1055 ctl_pool_free(emergency_pool); 1056 return (ENOMEM); 1057 } 1058 1059 softc->internal_pool = internal_pool; 1060 softc->emergency_pool = emergency_pool; 1061 softc->othersc_pool = other_pool; 1062 1063 if (worker_threads <= 0) 1064 worker_threads = max(1, mp_ncpus / 4); 1065 if (worker_threads > CTL_MAX_THREADS) 1066 worker_threads = CTL_MAX_THREADS; 1067 1068 for (i = 0; i < worker_threads; i++) { 1069 struct ctl_thread *thr = &softc->threads[i]; 1070 1071 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1072 thr->ctl_softc = softc; 1073 STAILQ_INIT(&thr->incoming_queue); 1074 STAILQ_INIT(&thr->rtr_queue); 1075 STAILQ_INIT(&thr->done_queue); 1076 STAILQ_INIT(&thr->isc_queue); 1077 1078 error = kproc_kthread_add(ctl_work_thread, thr, 1079 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1080 if (error != 0) { 1081 printf("error creating CTL work thread!\n"); 1082 ctl_pool_free(internal_pool); 1083 ctl_pool_free(emergency_pool); 1084 ctl_pool_free(other_pool); 1085 return (error); 1086 } 1087 } 1088 error = kproc_kthread_add(ctl_lun_thread, softc, 1089 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1090 if (error != 0) { 1091 printf("error creating CTL lun thread!\n"); 1092 ctl_pool_free(internal_pool); 1093 ctl_pool_free(emergency_pool); 1094 ctl_pool_free(other_pool); 1095 return (error); 1096 } 1097 if (bootverbose) 1098 printf("ctl: CAM Target Layer loaded\n"); 1099 1100 /* 1101 * Initialize the ioctl front end. 1102 */ 1103 ctl_frontend_register(&ioctl_frontend); 1104 port = &softc->ioctl_info.port; 1105 port->frontend = &ioctl_frontend; 1106 sprintf(softc->ioctl_info.port_name, "ioctl"); 1107 port->port_type = CTL_PORT_IOCTL; 1108 port->num_requested_ctl_io = 100; 1109 port->port_name = softc->ioctl_info.port_name; 1110 port->port_online = ctl_ioctl_online; 1111 port->port_offline = ctl_ioctl_offline; 1112 port->onoff_arg = &softc->ioctl_info; 1113 port->lun_enable = ctl_ioctl_lun_enable; 1114 port->lun_disable = ctl_ioctl_lun_disable; 1115 port->targ_lun_arg = &softc->ioctl_info; 1116 port->fe_datamove = ctl_ioctl_datamove; 1117 port->fe_done = ctl_ioctl_done; 1118 port->max_targets = 15; 1119 port->max_target_id = 15; 1120 1121 if (ctl_port_register(&softc->ioctl_info.port, 1122 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1123 printf("ctl: ioctl front end registration failed, will " 1124 "continue anyway\n"); 1125 } 1126 1127#ifdef CTL_IO_DELAY 1128 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1129 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1130 sizeof(struct callout), CTL_TIMER_BYTES); 1131 return (EINVAL); 1132 } 1133#endif /* CTL_IO_DELAY */ 1134 1135 return (0); 1136} 1137 1138void 1139ctl_shutdown(void) 1140{ 1141 struct ctl_softc *softc; 1142 struct ctl_lun *lun, *next_lun; 1143 struct ctl_io_pool *pool; 1144 1145 softc = (struct ctl_softc *)control_softc; 1146 1147 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1148 printf("ctl: ioctl front end deregistration failed\n"); 1149 1150 mtx_lock(&softc->ctl_lock); 1151 1152 /* 1153 * Free up each LUN. 1154 */ 1155 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1156 next_lun = STAILQ_NEXT(lun, links); 1157 ctl_free_lun(lun); 1158 } 1159 1160 mtx_unlock(&softc->ctl_lock); 1161 1162 ctl_frontend_deregister(&ioctl_frontend); 1163 1164 /* 1165 * This will rip the rug out from under any FETDs or anyone else 1166 * that has a pool allocated. Since we increment our module 1167 * refcount any time someone outside the main CTL module allocates 1168 * a pool, we shouldn't have any problems here. The user won't be 1169 * able to unload the CTL module until client modules have 1170 * successfully unloaded. 1171 */ 1172 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1173 ctl_pool_free(pool); 1174 1175#if 0 1176 ctl_shutdown_thread(softc->work_thread); 1177 mtx_destroy(&softc->queue_lock); 1178#endif 1179 1180 ctl_tpc_shutdown(softc); 1181 mtx_destroy(&softc->pool_lock); 1182 mtx_destroy(&softc->ctl_lock); 1183 1184 destroy_dev(softc->dev); 1185 1186 sysctl_ctx_free(&softc->sysctl_ctx); 1187 1188 free(control_softc, M_DEVBUF); 1189 control_softc = NULL; 1190 1191 if (bootverbose) 1192 printf("ctl: CAM Target Layer unloaded\n"); 1193} 1194 1195static int 1196ctl_module_event_handler(module_t mod, int what, void *arg) 1197{ 1198 1199 switch (what) { 1200 case MOD_LOAD: 1201 return (ctl_init()); 1202 case MOD_UNLOAD: 1203 return (EBUSY); 1204 default: 1205 return (EOPNOTSUPP); 1206 } 1207} 1208 1209/* 1210 * XXX KDM should we do some access checks here? Bump a reference count to 1211 * prevent a CTL module from being unloaded while someone has it open? 1212 */ 1213static int 1214ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1215{ 1216 return (0); 1217} 1218 1219static int 1220ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1221{ 1222 return (0); 1223} 1224 1225int 1226ctl_port_enable(ctl_port_type port_type) 1227{ 1228 struct ctl_softc *softc; 1229 struct ctl_port *port; 1230 1231 if (ctl_is_single == 0) { 1232 union ctl_ha_msg msg_info; 1233 int isc_retval; 1234 1235#if 0 1236 printf("%s: HA mode, synchronizing frontend enable\n", 1237 __func__); 1238#endif 1239 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1240 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1241 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1242 printf("Sync msg send error retval %d\n", isc_retval); 1243 } 1244 if (!rcv_sync_msg) { 1245 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1246 sizeof(msg_info), 1); 1247 } 1248#if 0 1249 printf("CTL:Frontend Enable\n"); 1250 } else { 1251 printf("%s: single mode, skipping frontend synchronization\n", 1252 __func__); 1253#endif 1254 } 1255 1256 softc = control_softc; 1257 1258 STAILQ_FOREACH(port, &softc->port_list, links) { 1259 if (port_type & port->port_type) 1260 { 1261#if 0 1262 printf("port %d\n", port->targ_port); 1263#endif 1264 ctl_port_online(port); 1265 } 1266 } 1267 1268 return (0); 1269} 1270 1271int 1272ctl_port_disable(ctl_port_type port_type) 1273{ 1274 struct ctl_softc *softc; 1275 struct ctl_port *port; 1276 1277 softc = control_softc; 1278 1279 STAILQ_FOREACH(port, &softc->port_list, links) { 1280 if (port_type & port->port_type) 1281 ctl_port_offline(port); 1282 } 1283 1284 return (0); 1285} 1286 1287/* 1288 * Returns 0 for success, 1 for failure. 1289 * Currently the only failure mode is if there aren't enough entries 1290 * allocated. So, in case of a failure, look at num_entries_dropped, 1291 * reallocate and try again. 1292 */ 1293int 1294ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1295 int *num_entries_filled, int *num_entries_dropped, 1296 ctl_port_type port_type, int no_virtual) 1297{ 1298 struct ctl_softc *softc; 1299 struct ctl_port *port; 1300 int entries_dropped, entries_filled; 1301 int retval; 1302 int i; 1303 1304 softc = control_softc; 1305 1306 retval = 0; 1307 entries_filled = 0; 1308 entries_dropped = 0; 1309 1310 i = 0; 1311 mtx_lock(&softc->ctl_lock); 1312 STAILQ_FOREACH(port, &softc->port_list, links) { 1313 struct ctl_port_entry *entry; 1314 1315 if ((port->port_type & port_type) == 0) 1316 continue; 1317 1318 if ((no_virtual != 0) 1319 && (port->virtual_port != 0)) 1320 continue; 1321 1322 if (entries_filled >= num_entries_alloced) { 1323 entries_dropped++; 1324 continue; 1325 } 1326 entry = &entries[i]; 1327 1328 entry->port_type = port->port_type; 1329 strlcpy(entry->port_name, port->port_name, 1330 sizeof(entry->port_name)); 1331 entry->physical_port = port->physical_port; 1332 entry->virtual_port = port->virtual_port; 1333 entry->wwnn = port->wwnn; 1334 entry->wwpn = port->wwpn; 1335 1336 i++; 1337 entries_filled++; 1338 } 1339 1340 mtx_unlock(&softc->ctl_lock); 1341 1342 if (entries_dropped > 0) 1343 retval = 1; 1344 1345 *num_entries_dropped = entries_dropped; 1346 *num_entries_filled = entries_filled; 1347 1348 return (retval); 1349} 1350 1351static void 1352ctl_ioctl_online(void *arg) 1353{ 1354 struct ctl_ioctl_info *ioctl_info; 1355 1356 ioctl_info = (struct ctl_ioctl_info *)arg; 1357 1358 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1359} 1360 1361static void 1362ctl_ioctl_offline(void *arg) 1363{ 1364 struct ctl_ioctl_info *ioctl_info; 1365 1366 ioctl_info = (struct ctl_ioctl_info *)arg; 1367 1368 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1369} 1370 1371/* 1372 * Remove an initiator by port number and initiator ID. 1373 * Returns 0 for success, -1 for failure. 1374 */ 1375int 1376ctl_remove_initiator(struct ctl_port *port, int iid) 1377{ 1378 struct ctl_softc *softc = control_softc; 1379 1380 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1381 1382 if (iid > CTL_MAX_INIT_PER_PORT) { 1383 printf("%s: initiator ID %u > maximun %u!\n", 1384 __func__, iid, CTL_MAX_INIT_PER_PORT); 1385 return (-1); 1386 } 1387 1388 mtx_lock(&softc->ctl_lock); 1389 port->wwpn_iid[iid].in_use--; 1390 port->wwpn_iid[iid].last_use = time_uptime; 1391 mtx_unlock(&softc->ctl_lock); 1392 1393 return (0); 1394} 1395 1396/* 1397 * Add an initiator to the initiator map. 1398 * Returns iid for success, < 0 for failure. 1399 */ 1400int 1401ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1402{ 1403 struct ctl_softc *softc = control_softc; 1404 time_t best_time; 1405 int i, best; 1406 1407 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1408 1409 if (iid >= CTL_MAX_INIT_PER_PORT) { 1410 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1411 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1412 free(name, M_CTL); 1413 return (-1); 1414 } 1415 1416 mtx_lock(&softc->ctl_lock); 1417 1418 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1419 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1420 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1421 iid = i; 1422 break; 1423 } 1424 if (name != NULL && port->wwpn_iid[i].name != NULL && 1425 strcmp(name, port->wwpn_iid[i].name) == 0) { 1426 iid = i; 1427 break; 1428 } 1429 } 1430 } 1431 1432 if (iid < 0) { 1433 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1434 if (port->wwpn_iid[i].in_use == 0 && 1435 port->wwpn_iid[i].wwpn == 0 && 1436 port->wwpn_iid[i].name == NULL) { 1437 iid = i; 1438 break; 1439 } 1440 } 1441 } 1442 1443 if (iid < 0) { 1444 best = -1; 1445 best_time = INT32_MAX; 1446 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1447 if (port->wwpn_iid[i].in_use == 0) { 1448 if (port->wwpn_iid[i].last_use < best_time) { 1449 best = i; 1450 best_time = port->wwpn_iid[i].last_use; 1451 } 1452 } 1453 } 1454 iid = best; 1455 } 1456 1457 if (iid < 0) { 1458 mtx_unlock(&softc->ctl_lock); 1459 free(name, M_CTL); 1460 return (-2); 1461 } 1462 1463 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1464 /* 1465 * This is not an error yet. 1466 */ 1467 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1468#if 0 1469 printf("%s: port %d iid %u WWPN %#jx arrived" 1470 " again\n", __func__, port->targ_port, 1471 iid, (uintmax_t)wwpn); 1472#endif 1473 goto take; 1474 } 1475 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1476 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1477#if 0 1478 printf("%s: port %d iid %u name '%s' arrived" 1479 " again\n", __func__, port->targ_port, 1480 iid, name); 1481#endif 1482 goto take; 1483 } 1484 1485 /* 1486 * This is an error, but what do we do about it? The 1487 * driver is telling us we have a new WWPN for this 1488 * initiator ID, so we pretty much need to use it. 1489 */ 1490 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1491 " but WWPN %#jx '%s' is still at that address\n", 1492 __func__, port->targ_port, iid, wwpn, name, 1493 (uintmax_t)port->wwpn_iid[iid].wwpn, 1494 port->wwpn_iid[iid].name); 1495 1496 /* 1497 * XXX KDM clear have_ca and ua_pending on each LUN for 1498 * this initiator. 1499 */ 1500 } 1501take: 1502 free(port->wwpn_iid[iid].name, M_CTL); 1503 port->wwpn_iid[iid].name = name; 1504 port->wwpn_iid[iid].wwpn = wwpn; 1505 port->wwpn_iid[iid].in_use++; 1506 mtx_unlock(&softc->ctl_lock); 1507 1508 return (iid); 1509} 1510 1511static int 1512ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1513{ 1514 int len; 1515 1516 switch (port->port_type) { 1517 case CTL_PORT_FC: 1518 { 1519 struct scsi_transportid_fcp *id = 1520 (struct scsi_transportid_fcp *)buf; 1521 if (port->wwpn_iid[iid].wwpn == 0) 1522 return (0); 1523 memset(id, 0, sizeof(*id)); 1524 id->format_protocol = SCSI_PROTO_FC; 1525 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1526 return (sizeof(*id)); 1527 } 1528 case CTL_PORT_ISCSI: 1529 { 1530 struct scsi_transportid_iscsi_port *id = 1531 (struct scsi_transportid_iscsi_port *)buf; 1532 if (port->wwpn_iid[iid].name == NULL) 1533 return (0); 1534 memset(id, 0, 256); 1535 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1536 SCSI_PROTO_ISCSI; 1537 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1538 len = roundup2(min(len, 252), 4); 1539 scsi_ulto2b(len, id->additional_length); 1540 return (sizeof(*id) + len); 1541 } 1542 case CTL_PORT_SAS: 1543 { 1544 struct scsi_transportid_sas *id = 1545 (struct scsi_transportid_sas *)buf; 1546 if (port->wwpn_iid[iid].wwpn == 0) 1547 return (0); 1548 memset(id, 0, sizeof(*id)); 1549 id->format_protocol = SCSI_PROTO_SAS; 1550 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1551 return (sizeof(*id)); 1552 } 1553 default: 1554 { 1555 struct scsi_transportid_spi *id = 1556 (struct scsi_transportid_spi *)buf; 1557 memset(id, 0, sizeof(*id)); 1558 id->format_protocol = SCSI_PROTO_SPI; 1559 scsi_ulto2b(iid, id->scsi_addr); 1560 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1561 return (sizeof(*id)); 1562 } 1563 } 1564} 1565 1566static int 1567ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1568{ 1569 return (0); 1570} 1571 1572static int 1573ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1574{ 1575 return (0); 1576} 1577 1578/* 1579 * Data movement routine for the CTL ioctl frontend port. 1580 */ 1581static int 1582ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1583{ 1584 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1585 struct ctl_sg_entry ext_entry, kern_entry; 1586 int ext_sglen, ext_sg_entries, kern_sg_entries; 1587 int ext_sg_start, ext_offset; 1588 int len_to_copy, len_copied; 1589 int kern_watermark, ext_watermark; 1590 int ext_sglist_malloced; 1591 int i, j; 1592 1593 ext_sglist_malloced = 0; 1594 ext_sg_start = 0; 1595 ext_offset = 0; 1596 1597 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1598 1599 /* 1600 * If this flag is set, fake the data transfer. 1601 */ 1602 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1603 ctsio->ext_data_filled = ctsio->ext_data_len; 1604 goto bailout; 1605 } 1606 1607 /* 1608 * To simplify things here, if we have a single buffer, stick it in 1609 * a S/G entry and just make it a single entry S/G list. 1610 */ 1611 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1612 int len_seen; 1613 1614 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1615 1616 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1617 M_WAITOK); 1618 ext_sglist_malloced = 1; 1619 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1620 ext_sglen) != 0) { 1621 ctl_set_internal_failure(ctsio, 1622 /*sks_valid*/ 0, 1623 /*retry_count*/ 0); 1624 goto bailout; 1625 } 1626 ext_sg_entries = ctsio->ext_sg_entries; 1627 len_seen = 0; 1628 for (i = 0; i < ext_sg_entries; i++) { 1629 if ((len_seen + ext_sglist[i].len) >= 1630 ctsio->ext_data_filled) { 1631 ext_sg_start = i; 1632 ext_offset = ctsio->ext_data_filled - len_seen; 1633 break; 1634 } 1635 len_seen += ext_sglist[i].len; 1636 } 1637 } else { 1638 ext_sglist = &ext_entry; 1639 ext_sglist->addr = ctsio->ext_data_ptr; 1640 ext_sglist->len = ctsio->ext_data_len; 1641 ext_sg_entries = 1; 1642 ext_sg_start = 0; 1643 ext_offset = ctsio->ext_data_filled; 1644 } 1645 1646 if (ctsio->kern_sg_entries > 0) { 1647 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1648 kern_sg_entries = ctsio->kern_sg_entries; 1649 } else { 1650 kern_sglist = &kern_entry; 1651 kern_sglist->addr = ctsio->kern_data_ptr; 1652 kern_sglist->len = ctsio->kern_data_len; 1653 kern_sg_entries = 1; 1654 } 1655 1656 1657 kern_watermark = 0; 1658 ext_watermark = ext_offset; 1659 len_copied = 0; 1660 for (i = ext_sg_start, j = 0; 1661 i < ext_sg_entries && j < kern_sg_entries;) { 1662 uint8_t *ext_ptr, *kern_ptr; 1663 1664 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1665 kern_sglist[j].len - kern_watermark); 1666 1667 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1668 ext_ptr = ext_ptr + ext_watermark; 1669 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1670 /* 1671 * XXX KDM fix this! 1672 */ 1673 panic("need to implement bus address support"); 1674#if 0 1675 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1676#endif 1677 } else 1678 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1679 kern_ptr = kern_ptr + kern_watermark; 1680 1681 kern_watermark += len_to_copy; 1682 ext_watermark += len_to_copy; 1683 1684 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1685 CTL_FLAG_DATA_IN) { 1686 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1687 "bytes to user\n", len_to_copy)); 1688 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1689 "to %p\n", kern_ptr, ext_ptr)); 1690 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1691 ctl_set_internal_failure(ctsio, 1692 /*sks_valid*/ 0, 1693 /*retry_count*/ 0); 1694 goto bailout; 1695 } 1696 } else { 1697 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1698 "bytes from user\n", len_to_copy)); 1699 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1700 "to %p\n", ext_ptr, kern_ptr)); 1701 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1702 ctl_set_internal_failure(ctsio, 1703 /*sks_valid*/ 0, 1704 /*retry_count*/0); 1705 goto bailout; 1706 } 1707 } 1708 1709 len_copied += len_to_copy; 1710 1711 if (ext_sglist[i].len == ext_watermark) { 1712 i++; 1713 ext_watermark = 0; 1714 } 1715 1716 if (kern_sglist[j].len == kern_watermark) { 1717 j++; 1718 kern_watermark = 0; 1719 } 1720 } 1721 1722 ctsio->ext_data_filled += len_copied; 1723 1724 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1725 "kern_sg_entries: %d\n", ext_sg_entries, 1726 kern_sg_entries)); 1727 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1728 "kern_data_len = %d\n", ctsio->ext_data_len, 1729 ctsio->kern_data_len)); 1730 1731 1732 /* XXX KDM set residual?? */ 1733bailout: 1734 1735 if (ext_sglist_malloced != 0) 1736 free(ext_sglist, M_CTL); 1737 1738 return (CTL_RETVAL_COMPLETE); 1739} 1740 1741/* 1742 * Serialize a command that went down the "wrong" side, and so was sent to 1743 * this controller for execution. The logic is a little different than the 1744 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1745 * sent back to the other side, but in the success case, we execute the 1746 * command on this side (XFER mode) or tell the other side to execute it 1747 * (SER_ONLY mode). 1748 */ 1749static int 1750ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1751{ 1752 struct ctl_softc *ctl_softc; 1753 union ctl_ha_msg msg_info; 1754 struct ctl_lun *lun; 1755 int retval = 0; 1756 uint32_t targ_lun; 1757 1758 ctl_softc = control_softc; 1759 1760 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1761 lun = ctl_softc->ctl_luns[targ_lun]; 1762 if (lun==NULL) 1763 { 1764 /* 1765 * Why isn't LUN defined? The other side wouldn't 1766 * send a cmd if the LUN is undefined. 1767 */ 1768 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1769 1770 /* "Logical unit not supported" */ 1771 ctl_set_sense_data(&msg_info.scsi.sense_data, 1772 lun, 1773 /*sense_format*/SSD_TYPE_NONE, 1774 /*current_error*/ 1, 1775 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1776 /*asc*/ 0x25, 1777 /*ascq*/ 0x00, 1778 SSD_ELEM_NONE); 1779 1780 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1781 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1782 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1783 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1784 msg_info.hdr.serializing_sc = NULL; 1785 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1786 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1787 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1788 } 1789 return(1); 1790 1791 } 1792 1793 mtx_lock(&lun->lun_lock); 1794 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1795 1796 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1797 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1798 ooa_links))) { 1799 case CTL_ACTION_BLOCK: 1800 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1801 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1802 blocked_links); 1803 break; 1804 case CTL_ACTION_PASS: 1805 case CTL_ACTION_SKIP: 1806 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1807 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1808 ctl_enqueue_rtr((union ctl_io *)ctsio); 1809 } else { 1810 1811 /* send msg back to other side */ 1812 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1813 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1814 msg_info.hdr.msg_type = CTL_MSG_R2R; 1815#if 0 1816 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1817#endif 1818 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1819 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1820 } 1821 } 1822 break; 1823 case CTL_ACTION_OVERLAP: 1824 /* OVERLAPPED COMMANDS ATTEMPTED */ 1825 ctl_set_sense_data(&msg_info.scsi.sense_data, 1826 lun, 1827 /*sense_format*/SSD_TYPE_NONE, 1828 /*current_error*/ 1, 1829 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1830 /*asc*/ 0x4E, 1831 /*ascq*/ 0x00, 1832 SSD_ELEM_NONE); 1833 1834 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1835 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1836 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1837 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1838 msg_info.hdr.serializing_sc = NULL; 1839 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1840#if 0 1841 printf("BAD JUJU:Major Bummer Overlap\n"); 1842#endif 1843 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1844 retval = 1; 1845 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1846 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1847 } 1848 break; 1849 case CTL_ACTION_OVERLAP_TAG: 1850 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1851 ctl_set_sense_data(&msg_info.scsi.sense_data, 1852 lun, 1853 /*sense_format*/SSD_TYPE_NONE, 1854 /*current_error*/ 1, 1855 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1856 /*asc*/ 0x4D, 1857 /*ascq*/ ctsio->tag_num & 0xff, 1858 SSD_ELEM_NONE); 1859 1860 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1861 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1862 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1863 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1864 msg_info.hdr.serializing_sc = NULL; 1865 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1866#if 0 1867 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1868#endif 1869 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1870 retval = 1; 1871 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1872 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1873 } 1874 break; 1875 case CTL_ACTION_ERROR: 1876 default: 1877 /* "Internal target failure" */ 1878 ctl_set_sense_data(&msg_info.scsi.sense_data, 1879 lun, 1880 /*sense_format*/SSD_TYPE_NONE, 1881 /*current_error*/ 1, 1882 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1883 /*asc*/ 0x44, 1884 /*ascq*/ 0x00, 1885 SSD_ELEM_NONE); 1886 1887 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1888 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1889 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1890 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1891 msg_info.hdr.serializing_sc = NULL; 1892 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1893#if 0 1894 printf("BAD JUJU:Major Bummer HW Error\n"); 1895#endif 1896 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1897 retval = 1; 1898 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1899 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1900 } 1901 break; 1902 } 1903 mtx_unlock(&lun->lun_lock); 1904 return (retval); 1905} 1906 1907static int 1908ctl_ioctl_submit_wait(union ctl_io *io) 1909{ 1910 struct ctl_fe_ioctl_params params; 1911 ctl_fe_ioctl_state last_state; 1912 int done, retval; 1913 1914 retval = 0; 1915 1916 bzero(¶ms, sizeof(params)); 1917 1918 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1919 cv_init(¶ms.sem, "ctlioccv"); 1920 params.state = CTL_IOCTL_INPROG; 1921 last_state = params.state; 1922 1923 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1924 1925 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1926 1927 /* This shouldn't happen */ 1928 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1929 return (retval); 1930 1931 done = 0; 1932 1933 do { 1934 mtx_lock(¶ms.ioctl_mtx); 1935 /* 1936 * Check the state here, and don't sleep if the state has 1937 * already changed (i.e. wakeup has already occured, but we 1938 * weren't waiting yet). 1939 */ 1940 if (params.state == last_state) { 1941 /* XXX KDM cv_wait_sig instead? */ 1942 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1943 } 1944 last_state = params.state; 1945 1946 switch (params.state) { 1947 case CTL_IOCTL_INPROG: 1948 /* Why did we wake up? */ 1949 /* XXX KDM error here? */ 1950 mtx_unlock(¶ms.ioctl_mtx); 1951 break; 1952 case CTL_IOCTL_DATAMOVE: 1953 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1954 1955 /* 1956 * change last_state back to INPROG to avoid 1957 * deadlock on subsequent data moves. 1958 */ 1959 params.state = last_state = CTL_IOCTL_INPROG; 1960 1961 mtx_unlock(¶ms.ioctl_mtx); 1962 ctl_ioctl_do_datamove(&io->scsiio); 1963 /* 1964 * Note that in some cases, most notably writes, 1965 * this will queue the I/O and call us back later. 1966 * In other cases, generally reads, this routine 1967 * will immediately call back and wake us up, 1968 * probably using our own context. 1969 */ 1970 io->scsiio.be_move_done(io); 1971 break; 1972 case CTL_IOCTL_DONE: 1973 mtx_unlock(¶ms.ioctl_mtx); 1974 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1975 done = 1; 1976 break; 1977 default: 1978 mtx_unlock(¶ms.ioctl_mtx); 1979 /* XXX KDM error here? */ 1980 break; 1981 } 1982 } while (done == 0); 1983 1984 mtx_destroy(¶ms.ioctl_mtx); 1985 cv_destroy(¶ms.sem); 1986 1987 return (CTL_RETVAL_COMPLETE); 1988} 1989 1990static void 1991ctl_ioctl_datamove(union ctl_io *io) 1992{ 1993 struct ctl_fe_ioctl_params *params; 1994 1995 params = (struct ctl_fe_ioctl_params *) 1996 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1997 1998 mtx_lock(¶ms->ioctl_mtx); 1999 params->state = CTL_IOCTL_DATAMOVE; 2000 cv_broadcast(¶ms->sem); 2001 mtx_unlock(¶ms->ioctl_mtx); 2002} 2003 2004static void 2005ctl_ioctl_done(union ctl_io *io) 2006{ 2007 struct ctl_fe_ioctl_params *params; 2008 2009 params = (struct ctl_fe_ioctl_params *) 2010 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2011 2012 mtx_lock(¶ms->ioctl_mtx); 2013 params->state = CTL_IOCTL_DONE; 2014 cv_broadcast(¶ms->sem); 2015 mtx_unlock(¶ms->ioctl_mtx); 2016} 2017 2018static void 2019ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2020{ 2021 struct ctl_fe_ioctl_startstop_info *sd_info; 2022 2023 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2024 2025 sd_info->hs_info.status = metatask->status; 2026 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2027 sd_info->hs_info.luns_complete = 2028 metatask->taskinfo.startstop.luns_complete; 2029 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2030 2031 cv_broadcast(&sd_info->sem); 2032} 2033 2034static void 2035ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2036{ 2037 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2038 2039 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2040 2041 mtx_lock(fe_bbr_info->lock); 2042 fe_bbr_info->bbr_info->status = metatask->status; 2043 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2044 fe_bbr_info->wakeup_done = 1; 2045 mtx_unlock(fe_bbr_info->lock); 2046 2047 cv_broadcast(&fe_bbr_info->sem); 2048} 2049 2050/* 2051 * Returns 0 for success, errno for failure. 2052 */ 2053static int 2054ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2055 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2056{ 2057 union ctl_io *io; 2058 int retval; 2059 2060 retval = 0; 2061 2062 mtx_lock(&lun->lun_lock); 2063 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2064 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2065 ooa_links)) { 2066 struct ctl_ooa_entry *entry; 2067 2068 /* 2069 * If we've got more than we can fit, just count the 2070 * remaining entries. 2071 */ 2072 if (*cur_fill_num >= ooa_hdr->alloc_num) 2073 continue; 2074 2075 entry = &kern_entries[*cur_fill_num]; 2076 2077 entry->tag_num = io->scsiio.tag_num; 2078 entry->lun_num = lun->lun; 2079#ifdef CTL_TIME_IO 2080 entry->start_bt = io->io_hdr.start_bt; 2081#endif 2082 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2083 entry->cdb_len = io->scsiio.cdb_len; 2084 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2085 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2086 2087 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2088 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2089 2090 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2091 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2092 2093 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2094 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2095 2096 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2097 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2098 } 2099 mtx_unlock(&lun->lun_lock); 2100 2101 return (retval); 2102} 2103 2104static void * 2105ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2106 size_t error_str_len) 2107{ 2108 void *kptr; 2109 2110 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2111 2112 if (copyin(user_addr, kptr, len) != 0) { 2113 snprintf(error_str, error_str_len, "Error copying %d bytes " 2114 "from user address %p to kernel address %p", len, 2115 user_addr, kptr); 2116 free(kptr, M_CTL); 2117 return (NULL); 2118 } 2119 2120 return (kptr); 2121} 2122 2123static void 2124ctl_free_args(int num_args, struct ctl_be_arg *args) 2125{ 2126 int i; 2127 2128 if (args == NULL) 2129 return; 2130 2131 for (i = 0; i < num_args; i++) { 2132 free(args[i].kname, M_CTL); 2133 free(args[i].kvalue, M_CTL); 2134 } 2135 2136 free(args, M_CTL); 2137} 2138 2139static struct ctl_be_arg * 2140ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2141 char *error_str, size_t error_str_len) 2142{ 2143 struct ctl_be_arg *args; 2144 int i; 2145 2146 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2147 error_str, error_str_len); 2148 2149 if (args == NULL) 2150 goto bailout; 2151 2152 for (i = 0; i < num_args; i++) { 2153 args[i].kname = NULL; 2154 args[i].kvalue = NULL; 2155 } 2156 2157 for (i = 0; i < num_args; i++) { 2158 uint8_t *tmpptr; 2159 2160 args[i].kname = ctl_copyin_alloc(args[i].name, 2161 args[i].namelen, error_str, error_str_len); 2162 if (args[i].kname == NULL) 2163 goto bailout; 2164 2165 if (args[i].kname[args[i].namelen - 1] != '\0') { 2166 snprintf(error_str, error_str_len, "Argument %d " 2167 "name is not NUL-terminated", i); 2168 goto bailout; 2169 } 2170 2171 if (args[i].flags & CTL_BEARG_RD) { 2172 tmpptr = ctl_copyin_alloc(args[i].value, 2173 args[i].vallen, error_str, error_str_len); 2174 if (tmpptr == NULL) 2175 goto bailout; 2176 if ((args[i].flags & CTL_BEARG_ASCII) 2177 && (tmpptr[args[i].vallen - 1] != '\0')) { 2178 snprintf(error_str, error_str_len, "Argument " 2179 "%d value is not NUL-terminated", i); 2180 goto bailout; 2181 } 2182 args[i].kvalue = tmpptr; 2183 } else { 2184 args[i].kvalue = malloc(args[i].vallen, 2185 M_CTL, M_WAITOK | M_ZERO); 2186 } 2187 } 2188 2189 return (args); 2190bailout: 2191 2192 ctl_free_args(num_args, args); 2193 2194 return (NULL); 2195} 2196 2197static void 2198ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2199{ 2200 int i; 2201 2202 for (i = 0; i < num_args; i++) { 2203 if (args[i].flags & CTL_BEARG_WR) 2204 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2205 } 2206} 2207 2208/* 2209 * Escape characters that are illegal or not recommended in XML. 2210 */ 2211int 2212ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2213{ 2214 int retval; 2215 2216 retval = 0; 2217 2218 for (; *str; str++) { 2219 switch (*str) { 2220 case '&': 2221 retval = sbuf_printf(sb, "&"); 2222 break; 2223 case '>': 2224 retval = sbuf_printf(sb, ">"); 2225 break; 2226 case '<': 2227 retval = sbuf_printf(sb, "<"); 2228 break; 2229 default: 2230 retval = sbuf_putc(sb, *str); 2231 break; 2232 } 2233 2234 if (retval != 0) 2235 break; 2236 2237 } 2238 2239 return (retval); 2240} 2241 2242static void 2243ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2244{ 2245 struct scsi_vpd_id_descriptor *desc; 2246 int i; 2247 2248 if (id == NULL || id->len < 4) 2249 return; 2250 desc = (struct scsi_vpd_id_descriptor *)id->data; 2251 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2252 case SVPD_ID_TYPE_T10: 2253 sbuf_printf(sb, "t10."); 2254 break; 2255 case SVPD_ID_TYPE_EUI64: 2256 sbuf_printf(sb, "eui."); 2257 break; 2258 case SVPD_ID_TYPE_NAA: 2259 sbuf_printf(sb, "naa."); 2260 break; 2261 case SVPD_ID_TYPE_SCSI_NAME: 2262 break; 2263 } 2264 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2265 case SVPD_ID_CODESET_BINARY: 2266 for (i = 0; i < desc->length; i++) 2267 sbuf_printf(sb, "%02x", desc->identifier[i]); 2268 break; 2269 case SVPD_ID_CODESET_ASCII: 2270 sbuf_printf(sb, "%.*s", (int)desc->length, 2271 (char *)desc->identifier); 2272 break; 2273 case SVPD_ID_CODESET_UTF8: 2274 sbuf_printf(sb, "%s", (char *)desc->identifier); 2275 break; 2276 } 2277} 2278 2279static int 2280ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2281 struct thread *td) 2282{ 2283 struct ctl_softc *softc; 2284 int retval; 2285 2286 softc = control_softc; 2287 2288 retval = 0; 2289 2290 switch (cmd) { 2291 case CTL_IO: { 2292 union ctl_io *io; 2293 void *pool_tmp; 2294 2295 /* 2296 * If we haven't been "enabled", don't allow any SCSI I/O 2297 * to this FETD. 2298 */ 2299 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2300 retval = EPERM; 2301 break; 2302 } 2303 2304 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2305 if (io == NULL) { 2306 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2307 retval = ENOSPC; 2308 break; 2309 } 2310 2311 /* 2312 * Need to save the pool reference so it doesn't get 2313 * spammed by the user's ctl_io. 2314 */ 2315 pool_tmp = io->io_hdr.pool; 2316 2317 memcpy(io, (void *)addr, sizeof(*io)); 2318 2319 io->io_hdr.pool = pool_tmp; 2320 /* 2321 * No status yet, so make sure the status is set properly. 2322 */ 2323 io->io_hdr.status = CTL_STATUS_NONE; 2324 2325 /* 2326 * The user sets the initiator ID, target and LUN IDs. 2327 */ 2328 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2329 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2330 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2331 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2332 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2333 2334 retval = ctl_ioctl_submit_wait(io); 2335 2336 if (retval != 0) { 2337 ctl_free_io(io); 2338 break; 2339 } 2340 2341 memcpy((void *)addr, io, sizeof(*io)); 2342 2343 /* return this to our pool */ 2344 ctl_free_io(io); 2345 2346 break; 2347 } 2348 case CTL_ENABLE_PORT: 2349 case CTL_DISABLE_PORT: 2350 case CTL_SET_PORT_WWNS: { 2351 struct ctl_port *port; 2352 struct ctl_port_entry *entry; 2353 2354 entry = (struct ctl_port_entry *)addr; 2355 2356 mtx_lock(&softc->ctl_lock); 2357 STAILQ_FOREACH(port, &softc->port_list, links) { 2358 int action, done; 2359 2360 action = 0; 2361 done = 0; 2362 2363 if ((entry->port_type == CTL_PORT_NONE) 2364 && (entry->targ_port == port->targ_port)) { 2365 /* 2366 * If the user only wants to enable or 2367 * disable or set WWNs on a specific port, 2368 * do the operation and we're done. 2369 */ 2370 action = 1; 2371 done = 1; 2372 } else if (entry->port_type & port->port_type) { 2373 /* 2374 * Compare the user's type mask with the 2375 * particular frontend type to see if we 2376 * have a match. 2377 */ 2378 action = 1; 2379 done = 0; 2380 2381 /* 2382 * Make sure the user isn't trying to set 2383 * WWNs on multiple ports at the same time. 2384 */ 2385 if (cmd == CTL_SET_PORT_WWNS) { 2386 printf("%s: Can't set WWNs on " 2387 "multiple ports\n", __func__); 2388 retval = EINVAL; 2389 break; 2390 } 2391 } 2392 if (action != 0) { 2393 /* 2394 * XXX KDM we have to drop the lock here, 2395 * because the online/offline operations 2396 * can potentially block. We need to 2397 * reference count the frontends so they 2398 * can't go away, 2399 */ 2400 mtx_unlock(&softc->ctl_lock); 2401 2402 if (cmd == CTL_ENABLE_PORT) { 2403 struct ctl_lun *lun; 2404 2405 STAILQ_FOREACH(lun, &softc->lun_list, 2406 links) { 2407 port->lun_enable(port->targ_lun_arg, 2408 lun->target, 2409 lun->lun); 2410 } 2411 2412 ctl_port_online(port); 2413 } else if (cmd == CTL_DISABLE_PORT) { 2414 struct ctl_lun *lun; 2415 2416 ctl_port_offline(port); 2417 2418 STAILQ_FOREACH(lun, &softc->lun_list, 2419 links) { 2420 port->lun_disable( 2421 port->targ_lun_arg, 2422 lun->target, 2423 lun->lun); 2424 } 2425 } 2426 2427 mtx_lock(&softc->ctl_lock); 2428 2429 if (cmd == CTL_SET_PORT_WWNS) 2430 ctl_port_set_wwns(port, 2431 (entry->flags & CTL_PORT_WWNN_VALID) ? 2432 1 : 0, entry->wwnn, 2433 (entry->flags & CTL_PORT_WWPN_VALID) ? 2434 1 : 0, entry->wwpn); 2435 } 2436 if (done != 0) 2437 break; 2438 } 2439 mtx_unlock(&softc->ctl_lock); 2440 break; 2441 } 2442 case CTL_GET_PORT_LIST: { 2443 struct ctl_port *port; 2444 struct ctl_port_list *list; 2445 int i; 2446 2447 list = (struct ctl_port_list *)addr; 2448 2449 if (list->alloc_len != (list->alloc_num * 2450 sizeof(struct ctl_port_entry))) { 2451 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2452 "alloc_num %u * sizeof(struct ctl_port_entry) " 2453 "%zu\n", __func__, list->alloc_len, 2454 list->alloc_num, sizeof(struct ctl_port_entry)); 2455 retval = EINVAL; 2456 break; 2457 } 2458 list->fill_len = 0; 2459 list->fill_num = 0; 2460 list->dropped_num = 0; 2461 i = 0; 2462 mtx_lock(&softc->ctl_lock); 2463 STAILQ_FOREACH(port, &softc->port_list, links) { 2464 struct ctl_port_entry entry, *list_entry; 2465 2466 if (list->fill_num >= list->alloc_num) { 2467 list->dropped_num++; 2468 continue; 2469 } 2470 2471 entry.port_type = port->port_type; 2472 strlcpy(entry.port_name, port->port_name, 2473 sizeof(entry.port_name)); 2474 entry.targ_port = port->targ_port; 2475 entry.physical_port = port->physical_port; 2476 entry.virtual_port = port->virtual_port; 2477 entry.wwnn = port->wwnn; 2478 entry.wwpn = port->wwpn; 2479 if (port->status & CTL_PORT_STATUS_ONLINE) 2480 entry.online = 1; 2481 else 2482 entry.online = 0; 2483 2484 list_entry = &list->entries[i]; 2485 2486 retval = copyout(&entry, list_entry, sizeof(entry)); 2487 if (retval != 0) { 2488 printf("%s: CTL_GET_PORT_LIST: copyout " 2489 "returned %d\n", __func__, retval); 2490 break; 2491 } 2492 i++; 2493 list->fill_num++; 2494 list->fill_len += sizeof(entry); 2495 } 2496 mtx_unlock(&softc->ctl_lock); 2497 2498 /* 2499 * If this is non-zero, we had a copyout fault, so there's 2500 * probably no point in attempting to set the status inside 2501 * the structure. 2502 */ 2503 if (retval != 0) 2504 break; 2505 2506 if (list->dropped_num > 0) 2507 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2508 else 2509 list->status = CTL_PORT_LIST_OK; 2510 break; 2511 } 2512 case CTL_DUMP_OOA: { 2513 struct ctl_lun *lun; 2514 union ctl_io *io; 2515 char printbuf[128]; 2516 struct sbuf sb; 2517 2518 mtx_lock(&softc->ctl_lock); 2519 printf("Dumping OOA queues:\n"); 2520 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2521 mtx_lock(&lun->lun_lock); 2522 for (io = (union ctl_io *)TAILQ_FIRST( 2523 &lun->ooa_queue); io != NULL; 2524 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2525 ooa_links)) { 2526 sbuf_new(&sb, printbuf, sizeof(printbuf), 2527 SBUF_FIXEDLEN); 2528 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2529 (intmax_t)lun->lun, 2530 io->scsiio.tag_num, 2531 (io->io_hdr.flags & 2532 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2533 (io->io_hdr.flags & 2534 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2535 (io->io_hdr.flags & 2536 CTL_FLAG_ABORT) ? " ABORT" : "", 2537 (io->io_hdr.flags & 2538 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2539 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2540 sbuf_finish(&sb); 2541 printf("%s\n", sbuf_data(&sb)); 2542 } 2543 mtx_unlock(&lun->lun_lock); 2544 } 2545 printf("OOA queues dump done\n"); 2546 mtx_unlock(&softc->ctl_lock); 2547 break; 2548 } 2549 case CTL_GET_OOA: { 2550 struct ctl_lun *lun; 2551 struct ctl_ooa *ooa_hdr; 2552 struct ctl_ooa_entry *entries; 2553 uint32_t cur_fill_num; 2554 2555 ooa_hdr = (struct ctl_ooa *)addr; 2556 2557 if ((ooa_hdr->alloc_len == 0) 2558 || (ooa_hdr->alloc_num == 0)) { 2559 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2560 "must be non-zero\n", __func__, 2561 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2562 retval = EINVAL; 2563 break; 2564 } 2565 2566 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2567 sizeof(struct ctl_ooa_entry))) { 2568 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2569 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2570 __func__, ooa_hdr->alloc_len, 2571 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2572 retval = EINVAL; 2573 break; 2574 } 2575 2576 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2577 if (entries == NULL) { 2578 printf("%s: could not allocate %d bytes for OOA " 2579 "dump\n", __func__, ooa_hdr->alloc_len); 2580 retval = ENOMEM; 2581 break; 2582 } 2583 2584 mtx_lock(&softc->ctl_lock); 2585 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2586 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2587 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2588 mtx_unlock(&softc->ctl_lock); 2589 free(entries, M_CTL); 2590 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2591 __func__, (uintmax_t)ooa_hdr->lun_num); 2592 retval = EINVAL; 2593 break; 2594 } 2595 2596 cur_fill_num = 0; 2597 2598 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2599 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2600 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2601 ooa_hdr, entries); 2602 if (retval != 0) 2603 break; 2604 } 2605 if (retval != 0) { 2606 mtx_unlock(&softc->ctl_lock); 2607 free(entries, M_CTL); 2608 break; 2609 } 2610 } else { 2611 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2612 2613 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2614 entries); 2615 } 2616 mtx_unlock(&softc->ctl_lock); 2617 2618 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2619 ooa_hdr->fill_len = ooa_hdr->fill_num * 2620 sizeof(struct ctl_ooa_entry); 2621 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2622 if (retval != 0) { 2623 printf("%s: error copying out %d bytes for OOA dump\n", 2624 __func__, ooa_hdr->fill_len); 2625 } 2626 2627 getbintime(&ooa_hdr->cur_bt); 2628 2629 if (cur_fill_num > ooa_hdr->alloc_num) { 2630 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2631 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2632 } else { 2633 ooa_hdr->dropped_num = 0; 2634 ooa_hdr->status = CTL_OOA_OK; 2635 } 2636 2637 free(entries, M_CTL); 2638 break; 2639 } 2640 case CTL_CHECK_OOA: { 2641 union ctl_io *io; 2642 struct ctl_lun *lun; 2643 struct ctl_ooa_info *ooa_info; 2644 2645 2646 ooa_info = (struct ctl_ooa_info *)addr; 2647 2648 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2649 ooa_info->status = CTL_OOA_INVALID_LUN; 2650 break; 2651 } 2652 mtx_lock(&softc->ctl_lock); 2653 lun = softc->ctl_luns[ooa_info->lun_id]; 2654 if (lun == NULL) { 2655 mtx_unlock(&softc->ctl_lock); 2656 ooa_info->status = CTL_OOA_INVALID_LUN; 2657 break; 2658 } 2659 mtx_lock(&lun->lun_lock); 2660 mtx_unlock(&softc->ctl_lock); 2661 ooa_info->num_entries = 0; 2662 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2663 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2664 &io->io_hdr, ooa_links)) { 2665 ooa_info->num_entries++; 2666 } 2667 mtx_unlock(&lun->lun_lock); 2668 2669 ooa_info->status = CTL_OOA_SUCCESS; 2670 2671 break; 2672 } 2673 case CTL_HARD_START: 2674 case CTL_HARD_STOP: { 2675 struct ctl_fe_ioctl_startstop_info ss_info; 2676 struct cfi_metatask *metatask; 2677 struct mtx hs_mtx; 2678 2679 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2680 2681 cv_init(&ss_info.sem, "hard start/stop cv" ); 2682 2683 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2684 if (metatask == NULL) { 2685 retval = ENOMEM; 2686 mtx_destroy(&hs_mtx); 2687 break; 2688 } 2689 2690 if (cmd == CTL_HARD_START) 2691 metatask->tasktype = CFI_TASK_STARTUP; 2692 else 2693 metatask->tasktype = CFI_TASK_SHUTDOWN; 2694 2695 metatask->callback = ctl_ioctl_hard_startstop_callback; 2696 metatask->callback_arg = &ss_info; 2697 2698 cfi_action(metatask); 2699 2700 /* Wait for the callback */ 2701 mtx_lock(&hs_mtx); 2702 cv_wait_sig(&ss_info.sem, &hs_mtx); 2703 mtx_unlock(&hs_mtx); 2704 2705 /* 2706 * All information has been copied from the metatask by the 2707 * time cv_broadcast() is called, so we free the metatask here. 2708 */ 2709 cfi_free_metatask(metatask); 2710 2711 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2712 2713 mtx_destroy(&hs_mtx); 2714 break; 2715 } 2716 case CTL_BBRREAD: { 2717 struct ctl_bbrread_info *bbr_info; 2718 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2719 struct mtx bbr_mtx; 2720 struct cfi_metatask *metatask; 2721 2722 bbr_info = (struct ctl_bbrread_info *)addr; 2723 2724 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2725 2726 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2727 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2728 2729 fe_bbr_info.bbr_info = bbr_info; 2730 fe_bbr_info.lock = &bbr_mtx; 2731 2732 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2733 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2734 2735 if (metatask == NULL) { 2736 mtx_destroy(&bbr_mtx); 2737 cv_destroy(&fe_bbr_info.sem); 2738 retval = ENOMEM; 2739 break; 2740 } 2741 metatask->tasktype = CFI_TASK_BBRREAD; 2742 metatask->callback = ctl_ioctl_bbrread_callback; 2743 metatask->callback_arg = &fe_bbr_info; 2744 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2745 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2746 metatask->taskinfo.bbrread.len = bbr_info->len; 2747 2748 cfi_action(metatask); 2749 2750 mtx_lock(&bbr_mtx); 2751 while (fe_bbr_info.wakeup_done == 0) 2752 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2753 mtx_unlock(&bbr_mtx); 2754 2755 bbr_info->status = metatask->status; 2756 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2757 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2758 memcpy(&bbr_info->sense_data, 2759 &metatask->taskinfo.bbrread.sense_data, 2760 ctl_min(sizeof(bbr_info->sense_data), 2761 sizeof(metatask->taskinfo.bbrread.sense_data))); 2762 2763 cfi_free_metatask(metatask); 2764 2765 mtx_destroy(&bbr_mtx); 2766 cv_destroy(&fe_bbr_info.sem); 2767 2768 break; 2769 } 2770 case CTL_DELAY_IO: { 2771 struct ctl_io_delay_info *delay_info; 2772#ifdef CTL_IO_DELAY 2773 struct ctl_lun *lun; 2774#endif /* CTL_IO_DELAY */ 2775 2776 delay_info = (struct ctl_io_delay_info *)addr; 2777 2778#ifdef CTL_IO_DELAY 2779 mtx_lock(&softc->ctl_lock); 2780 2781 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2782 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2783 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2784 } else { 2785 lun = softc->ctl_luns[delay_info->lun_id]; 2786 mtx_lock(&lun->lun_lock); 2787 2788 delay_info->status = CTL_DELAY_STATUS_OK; 2789 2790 switch (delay_info->delay_type) { 2791 case CTL_DELAY_TYPE_CONT: 2792 break; 2793 case CTL_DELAY_TYPE_ONESHOT: 2794 break; 2795 default: 2796 delay_info->status = 2797 CTL_DELAY_STATUS_INVALID_TYPE; 2798 break; 2799 } 2800 2801 switch (delay_info->delay_loc) { 2802 case CTL_DELAY_LOC_DATAMOVE: 2803 lun->delay_info.datamove_type = 2804 delay_info->delay_type; 2805 lun->delay_info.datamove_delay = 2806 delay_info->delay_secs; 2807 break; 2808 case CTL_DELAY_LOC_DONE: 2809 lun->delay_info.done_type = 2810 delay_info->delay_type; 2811 lun->delay_info.done_delay = 2812 delay_info->delay_secs; 2813 break; 2814 default: 2815 delay_info->status = 2816 CTL_DELAY_STATUS_INVALID_LOC; 2817 break; 2818 } 2819 mtx_unlock(&lun->lun_lock); 2820 } 2821 2822 mtx_unlock(&softc->ctl_lock); 2823#else 2824 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2825#endif /* CTL_IO_DELAY */ 2826 break; 2827 } 2828 case CTL_REALSYNC_SET: { 2829 int *syncstate; 2830 2831 syncstate = (int *)addr; 2832 2833 mtx_lock(&softc->ctl_lock); 2834 switch (*syncstate) { 2835 case 0: 2836 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2837 break; 2838 case 1: 2839 softc->flags |= CTL_FLAG_REAL_SYNC; 2840 break; 2841 default: 2842 retval = EINVAL; 2843 break; 2844 } 2845 mtx_unlock(&softc->ctl_lock); 2846 break; 2847 } 2848 case CTL_REALSYNC_GET: { 2849 int *syncstate; 2850 2851 syncstate = (int*)addr; 2852 2853 mtx_lock(&softc->ctl_lock); 2854 if (softc->flags & CTL_FLAG_REAL_SYNC) 2855 *syncstate = 1; 2856 else 2857 *syncstate = 0; 2858 mtx_unlock(&softc->ctl_lock); 2859 2860 break; 2861 } 2862 case CTL_SETSYNC: 2863 case CTL_GETSYNC: { 2864 struct ctl_sync_info *sync_info; 2865 struct ctl_lun *lun; 2866 2867 sync_info = (struct ctl_sync_info *)addr; 2868 2869 mtx_lock(&softc->ctl_lock); 2870 lun = softc->ctl_luns[sync_info->lun_id]; 2871 if (lun == NULL) { 2872 mtx_unlock(&softc->ctl_lock); 2873 sync_info->status = CTL_GS_SYNC_NO_LUN; 2874 } 2875 /* 2876 * Get or set the sync interval. We're not bounds checking 2877 * in the set case, hopefully the user won't do something 2878 * silly. 2879 */ 2880 mtx_lock(&lun->lun_lock); 2881 mtx_unlock(&softc->ctl_lock); 2882 if (cmd == CTL_GETSYNC) 2883 sync_info->sync_interval = lun->sync_interval; 2884 else 2885 lun->sync_interval = sync_info->sync_interval; 2886 mtx_unlock(&lun->lun_lock); 2887 2888 sync_info->status = CTL_GS_SYNC_OK; 2889 2890 break; 2891 } 2892 case CTL_GETSTATS: { 2893 struct ctl_stats *stats; 2894 struct ctl_lun *lun; 2895 int i; 2896 2897 stats = (struct ctl_stats *)addr; 2898 2899 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2900 stats->alloc_len) { 2901 stats->status = CTL_SS_NEED_MORE_SPACE; 2902 stats->num_luns = softc->num_luns; 2903 break; 2904 } 2905 /* 2906 * XXX KDM no locking here. If the LUN list changes, 2907 * things can blow up. 2908 */ 2909 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2910 i++, lun = STAILQ_NEXT(lun, links)) { 2911 retval = copyout(&lun->stats, &stats->lun_stats[i], 2912 sizeof(lun->stats)); 2913 if (retval != 0) 2914 break; 2915 } 2916 stats->num_luns = softc->num_luns; 2917 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2918 softc->num_luns; 2919 stats->status = CTL_SS_OK; 2920#ifdef CTL_TIME_IO 2921 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2922#else 2923 stats->flags = CTL_STATS_FLAG_NONE; 2924#endif 2925 getnanouptime(&stats->timestamp); 2926 break; 2927 } 2928 case CTL_ERROR_INJECT: { 2929 struct ctl_error_desc *err_desc, *new_err_desc; 2930 struct ctl_lun *lun; 2931 2932 err_desc = (struct ctl_error_desc *)addr; 2933 2934 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2935 M_WAITOK | M_ZERO); 2936 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2937 2938 mtx_lock(&softc->ctl_lock); 2939 lun = softc->ctl_luns[err_desc->lun_id]; 2940 if (lun == NULL) { 2941 mtx_unlock(&softc->ctl_lock); 2942 free(new_err_desc, M_CTL); 2943 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2944 __func__, (uintmax_t)err_desc->lun_id); 2945 retval = EINVAL; 2946 break; 2947 } 2948 mtx_lock(&lun->lun_lock); 2949 mtx_unlock(&softc->ctl_lock); 2950 2951 /* 2952 * We could do some checking here to verify the validity 2953 * of the request, but given the complexity of error 2954 * injection requests, the checking logic would be fairly 2955 * complex. 2956 * 2957 * For now, if the request is invalid, it just won't get 2958 * executed and might get deleted. 2959 */ 2960 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2961 2962 /* 2963 * XXX KDM check to make sure the serial number is unique, 2964 * in case we somehow manage to wrap. That shouldn't 2965 * happen for a very long time, but it's the right thing to 2966 * do. 2967 */ 2968 new_err_desc->serial = lun->error_serial; 2969 err_desc->serial = lun->error_serial; 2970 lun->error_serial++; 2971 2972 mtx_unlock(&lun->lun_lock); 2973 break; 2974 } 2975 case CTL_ERROR_INJECT_DELETE: { 2976 struct ctl_error_desc *delete_desc, *desc, *desc2; 2977 struct ctl_lun *lun; 2978 int delete_done; 2979 2980 delete_desc = (struct ctl_error_desc *)addr; 2981 delete_done = 0; 2982 2983 mtx_lock(&softc->ctl_lock); 2984 lun = softc->ctl_luns[delete_desc->lun_id]; 2985 if (lun == NULL) { 2986 mtx_unlock(&softc->ctl_lock); 2987 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2988 __func__, (uintmax_t)delete_desc->lun_id); 2989 retval = EINVAL; 2990 break; 2991 } 2992 mtx_lock(&lun->lun_lock); 2993 mtx_unlock(&softc->ctl_lock); 2994 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2995 if (desc->serial != delete_desc->serial) 2996 continue; 2997 2998 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2999 links); 3000 free(desc, M_CTL); 3001 delete_done = 1; 3002 } 3003 mtx_unlock(&lun->lun_lock); 3004 if (delete_done == 0) { 3005 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3006 "error serial %ju on LUN %u\n", __func__, 3007 delete_desc->serial, delete_desc->lun_id); 3008 retval = EINVAL; 3009 break; 3010 } 3011 break; 3012 } 3013 case CTL_DUMP_STRUCTS: { 3014 int i, j, k, idx; 3015 struct ctl_port *port; 3016 struct ctl_frontend *fe; 3017 3018 mtx_lock(&softc->ctl_lock); 3019 printf("CTL Persistent Reservation information start:\n"); 3020 for (i = 0; i < CTL_MAX_LUNS; i++) { 3021 struct ctl_lun *lun; 3022 3023 lun = softc->ctl_luns[i]; 3024 3025 if ((lun == NULL) 3026 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3027 continue; 3028 3029 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3030 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3031 idx = j * CTL_MAX_INIT_PER_PORT + k; 3032 if (lun->pr_keys[idx] == 0) 3033 continue; 3034 printf(" LUN %d port %d iid %d key " 3035 "%#jx\n", i, j, k, 3036 (uintmax_t)lun->pr_keys[idx]); 3037 } 3038 } 3039 } 3040 printf("CTL Persistent Reservation information end\n"); 3041 printf("CTL Ports:\n"); 3042 STAILQ_FOREACH(port, &softc->port_list, links) { 3043 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3044 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3045 port->frontend->name, port->port_type, 3046 port->physical_port, port->virtual_port, 3047 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3048 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3049 if (port->wwpn_iid[j].in_use == 0 && 3050 port->wwpn_iid[j].wwpn == 0 && 3051 port->wwpn_iid[j].name == NULL) 3052 continue; 3053 3054 printf(" iid %u use %d WWPN %#jx '%s'\n", 3055 j, port->wwpn_iid[j].in_use, 3056 (uintmax_t)port->wwpn_iid[j].wwpn, 3057 port->wwpn_iid[j].name); 3058 } 3059 } 3060 printf("CTL Port information end\n"); 3061 mtx_unlock(&softc->ctl_lock); 3062 /* 3063 * XXX KDM calling this without a lock. We'd likely want 3064 * to drop the lock before calling the frontend's dump 3065 * routine anyway. 3066 */ 3067 printf("CTL Frontends:\n"); 3068 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3069 printf(" Frontend '%s'\n", fe->name); 3070 if (fe->fe_dump != NULL) 3071 fe->fe_dump(); 3072 } 3073 printf("CTL Frontend information end\n"); 3074 break; 3075 } 3076 case CTL_LUN_REQ: { 3077 struct ctl_lun_req *lun_req; 3078 struct ctl_backend_driver *backend; 3079 3080 lun_req = (struct ctl_lun_req *)addr; 3081 3082 backend = ctl_backend_find(lun_req->backend); 3083 if (backend == NULL) { 3084 lun_req->status = CTL_LUN_ERROR; 3085 snprintf(lun_req->error_str, 3086 sizeof(lun_req->error_str), 3087 "Backend \"%s\" not found.", 3088 lun_req->backend); 3089 break; 3090 } 3091 if (lun_req->num_be_args > 0) { 3092 lun_req->kern_be_args = ctl_copyin_args( 3093 lun_req->num_be_args, 3094 lun_req->be_args, 3095 lun_req->error_str, 3096 sizeof(lun_req->error_str)); 3097 if (lun_req->kern_be_args == NULL) { 3098 lun_req->status = CTL_LUN_ERROR; 3099 break; 3100 } 3101 } 3102 3103 retval = backend->ioctl(dev, cmd, addr, flag, td); 3104 3105 if (lun_req->num_be_args > 0) { 3106 ctl_copyout_args(lun_req->num_be_args, 3107 lun_req->kern_be_args); 3108 ctl_free_args(lun_req->num_be_args, 3109 lun_req->kern_be_args); 3110 } 3111 break; 3112 } 3113 case CTL_LUN_LIST: { 3114 struct sbuf *sb; 3115 struct ctl_lun *lun; 3116 struct ctl_lun_list *list; 3117 struct ctl_option *opt; 3118 3119 list = (struct ctl_lun_list *)addr; 3120 3121 /* 3122 * Allocate a fixed length sbuf here, based on the length 3123 * of the user's buffer. We could allocate an auto-extending 3124 * buffer, and then tell the user how much larger our 3125 * amount of data is than his buffer, but that presents 3126 * some problems: 3127 * 3128 * 1. The sbuf(9) routines use a blocking malloc, and so 3129 * we can't hold a lock while calling them with an 3130 * auto-extending buffer. 3131 * 3132 * 2. There is not currently a LUN reference counting 3133 * mechanism, outside of outstanding transactions on 3134 * the LUN's OOA queue. So a LUN could go away on us 3135 * while we're getting the LUN number, backend-specific 3136 * information, etc. Thus, given the way things 3137 * currently work, we need to hold the CTL lock while 3138 * grabbing LUN information. 3139 * 3140 * So, from the user's standpoint, the best thing to do is 3141 * allocate what he thinks is a reasonable buffer length, 3142 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3143 * double the buffer length and try again. (And repeat 3144 * that until he succeeds.) 3145 */ 3146 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3147 if (sb == NULL) { 3148 list->status = CTL_LUN_LIST_ERROR; 3149 snprintf(list->error_str, sizeof(list->error_str), 3150 "Unable to allocate %d bytes for LUN list", 3151 list->alloc_len); 3152 break; 3153 } 3154 3155 sbuf_printf(sb, "<ctllunlist>\n"); 3156 3157 mtx_lock(&softc->ctl_lock); 3158 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3159 mtx_lock(&lun->lun_lock); 3160 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3161 (uintmax_t)lun->lun); 3162 3163 /* 3164 * Bail out as soon as we see that we've overfilled 3165 * the buffer. 3166 */ 3167 if (retval != 0) 3168 break; 3169 3170 retval = sbuf_printf(sb, "\t<backend_type>%s" 3171 "</backend_type>\n", 3172 (lun->backend == NULL) ? "none" : 3173 lun->backend->name); 3174 3175 if (retval != 0) 3176 break; 3177 3178 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3179 lun->be_lun->lun_type); 3180 3181 if (retval != 0) 3182 break; 3183 3184 if (lun->backend == NULL) { 3185 retval = sbuf_printf(sb, "</lun>\n"); 3186 if (retval != 0) 3187 break; 3188 continue; 3189 } 3190 3191 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3192 (lun->be_lun->maxlba > 0) ? 3193 lun->be_lun->maxlba + 1 : 0); 3194 3195 if (retval != 0) 3196 break; 3197 3198 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3199 lun->be_lun->blocksize); 3200 3201 if (retval != 0) 3202 break; 3203 3204 retval = sbuf_printf(sb, "\t<serial_number>"); 3205 3206 if (retval != 0) 3207 break; 3208 3209 retval = ctl_sbuf_printf_esc(sb, 3210 lun->be_lun->serial_num); 3211 3212 if (retval != 0) 3213 break; 3214 3215 retval = sbuf_printf(sb, "</serial_number>\n"); 3216 3217 if (retval != 0) 3218 break; 3219 3220 retval = sbuf_printf(sb, "\t<device_id>"); 3221 3222 if (retval != 0) 3223 break; 3224 3225 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3226 3227 if (retval != 0) 3228 break; 3229 3230 retval = sbuf_printf(sb, "</device_id>\n"); 3231 3232 if (retval != 0) 3233 break; 3234 3235 if (lun->backend->lun_info != NULL) { 3236 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3237 if (retval != 0) 3238 break; 3239 } 3240 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3241 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3242 opt->name, opt->value, opt->name); 3243 if (retval != 0) 3244 break; 3245 } 3246 3247 retval = sbuf_printf(sb, "</lun>\n"); 3248 3249 if (retval != 0) 3250 break; 3251 mtx_unlock(&lun->lun_lock); 3252 } 3253 if (lun != NULL) 3254 mtx_unlock(&lun->lun_lock); 3255 mtx_unlock(&softc->ctl_lock); 3256 3257 if ((retval != 0) 3258 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3259 retval = 0; 3260 sbuf_delete(sb); 3261 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3262 snprintf(list->error_str, sizeof(list->error_str), 3263 "Out of space, %d bytes is too small", 3264 list->alloc_len); 3265 break; 3266 } 3267 3268 sbuf_finish(sb); 3269 3270 retval = copyout(sbuf_data(sb), list->lun_xml, 3271 sbuf_len(sb) + 1); 3272 3273 list->fill_len = sbuf_len(sb) + 1; 3274 list->status = CTL_LUN_LIST_OK; 3275 sbuf_delete(sb); 3276 break; 3277 } 3278 case CTL_ISCSI: { 3279 struct ctl_iscsi *ci; 3280 struct ctl_frontend *fe; 3281 3282 ci = (struct ctl_iscsi *)addr; 3283 3284 fe = ctl_frontend_find("iscsi"); 3285 if (fe == NULL) { 3286 ci->status = CTL_ISCSI_ERROR; 3287 snprintf(ci->error_str, sizeof(ci->error_str), 3288 "Frontend \"iscsi\" not found."); 3289 break; 3290 } 3291 3292 retval = fe->ioctl(dev, cmd, addr, flag, td); 3293 break; 3294 } 3295 case CTL_PORT_REQ: { 3296 struct ctl_req *req; 3297 struct ctl_frontend *fe; 3298 3299 req = (struct ctl_req *)addr; 3300 3301 fe = ctl_frontend_find(req->driver); 3302 if (fe == NULL) { 3303 req->status = CTL_LUN_ERROR; 3304 snprintf(req->error_str, sizeof(req->error_str), 3305 "Frontend \"%s\" not found.", req->driver); 3306 break; 3307 } 3308 if (req->num_args > 0) { 3309 req->kern_args = ctl_copyin_args(req->num_args, 3310 req->args, req->error_str, sizeof(req->error_str)); 3311 if (req->kern_args == NULL) { 3312 req->status = CTL_LUN_ERROR; 3313 break; 3314 } 3315 } 3316 3317 retval = fe->ioctl(dev, cmd, addr, flag, td); 3318 3319 if (req->num_args > 0) { 3320 ctl_copyout_args(req->num_args, req->kern_args); 3321 ctl_free_args(req->num_args, req->kern_args); 3322 } 3323 break; 3324 } 3325 case CTL_PORT_LIST: { 3326 struct sbuf *sb; 3327 struct ctl_port *port; 3328 struct ctl_lun_list *list; 3329 struct ctl_option *opt; 3330 int j; 3331 3332 list = (struct ctl_lun_list *)addr; 3333 3334 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3335 if (sb == NULL) { 3336 list->status = CTL_LUN_LIST_ERROR; 3337 snprintf(list->error_str, sizeof(list->error_str), 3338 "Unable to allocate %d bytes for LUN list", 3339 list->alloc_len); 3340 break; 3341 } 3342 3343 sbuf_printf(sb, "<ctlportlist>\n"); 3344 3345 mtx_lock(&softc->ctl_lock); 3346 STAILQ_FOREACH(port, &softc->port_list, links) { 3347 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3348 (uintmax_t)port->targ_port); 3349 3350 /* 3351 * Bail out as soon as we see that we've overfilled 3352 * the buffer. 3353 */ 3354 if (retval != 0) 3355 break; 3356 3357 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3358 "</frontend_type>\n", port->frontend->name); 3359 if (retval != 0) 3360 break; 3361 3362 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3363 port->port_type); 3364 if (retval != 0) 3365 break; 3366 3367 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3368 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3369 if (retval != 0) 3370 break; 3371 3372 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3373 port->port_name); 3374 if (retval != 0) 3375 break; 3376 3377 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3378 port->physical_port); 3379 if (retval != 0) 3380 break; 3381 3382 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3383 port->virtual_port); 3384 if (retval != 0) 3385 break; 3386 3387 if (port->target_devid != NULL) { 3388 sbuf_printf(sb, "\t<target>"); 3389 ctl_id_sbuf(port->target_devid, sb); 3390 sbuf_printf(sb, "</target>\n"); 3391 } 3392 3393 if (port->port_devid != NULL) { 3394 sbuf_printf(sb, "\t<port>"); 3395 ctl_id_sbuf(port->port_devid, sb); 3396 sbuf_printf(sb, "</port>\n"); 3397 } 3398 3399 if (port->port_info != NULL) { 3400 retval = port->port_info(port->onoff_arg, sb); 3401 if (retval != 0) 3402 break; 3403 } 3404 STAILQ_FOREACH(opt, &port->options, links) { 3405 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3406 opt->name, opt->value, opt->name); 3407 if (retval != 0) 3408 break; 3409 } 3410 3411 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3412 if (port->wwpn_iid[j].in_use == 0 || 3413 (port->wwpn_iid[j].wwpn == 0 && 3414 port->wwpn_iid[j].name == NULL)) 3415 continue; 3416 3417 if (port->wwpn_iid[j].name != NULL) 3418 retval = sbuf_printf(sb, 3419 "\t<initiator>%u %s</initiator>\n", 3420 j, port->wwpn_iid[j].name); 3421 else 3422 retval = sbuf_printf(sb, 3423 "\t<initiator>%u naa.%08jx</initiator>\n", 3424 j, port->wwpn_iid[j].wwpn); 3425 if (retval != 0) 3426 break; 3427 } 3428 if (retval != 0) 3429 break; 3430 3431 retval = sbuf_printf(sb, "</targ_port>\n"); 3432 if (retval != 0) 3433 break; 3434 } 3435 mtx_unlock(&softc->ctl_lock); 3436 3437 if ((retval != 0) 3438 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3439 retval = 0; 3440 sbuf_delete(sb); 3441 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3442 snprintf(list->error_str, sizeof(list->error_str), 3443 "Out of space, %d bytes is too small", 3444 list->alloc_len); 3445 break; 3446 } 3447 3448 sbuf_finish(sb); 3449 3450 retval = copyout(sbuf_data(sb), list->lun_xml, 3451 sbuf_len(sb) + 1); 3452 3453 list->fill_len = sbuf_len(sb) + 1; 3454 list->status = CTL_LUN_LIST_OK; 3455 sbuf_delete(sb); 3456 break; 3457 } 3458 default: { 3459 /* XXX KDM should we fix this? */ 3460#if 0 3461 struct ctl_backend_driver *backend; 3462 unsigned int type; 3463 int found; 3464 3465 found = 0; 3466 3467 /* 3468 * We encode the backend type as the ioctl type for backend 3469 * ioctls. So parse it out here, and then search for a 3470 * backend of this type. 3471 */ 3472 type = _IOC_TYPE(cmd); 3473 3474 STAILQ_FOREACH(backend, &softc->be_list, links) { 3475 if (backend->type == type) { 3476 found = 1; 3477 break; 3478 } 3479 } 3480 if (found == 0) { 3481 printf("ctl: unknown ioctl command %#lx or backend " 3482 "%d\n", cmd, type); 3483 retval = EINVAL; 3484 break; 3485 } 3486 retval = backend->ioctl(dev, cmd, addr, flag, td); 3487#endif 3488 retval = ENOTTY; 3489 break; 3490 } 3491 } 3492 return (retval); 3493} 3494 3495uint32_t 3496ctl_get_initindex(struct ctl_nexus *nexus) 3497{ 3498 if (nexus->targ_port < CTL_MAX_PORTS) 3499 return (nexus->initid.id + 3500 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3501 else 3502 return (nexus->initid.id + 3503 ((nexus->targ_port - CTL_MAX_PORTS) * 3504 CTL_MAX_INIT_PER_PORT)); 3505} 3506 3507uint32_t 3508ctl_get_resindex(struct ctl_nexus *nexus) 3509{ 3510 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3511} 3512 3513uint32_t 3514ctl_port_idx(int port_num) 3515{ 3516 if (port_num < CTL_MAX_PORTS) 3517 return(port_num); 3518 else 3519 return(port_num - CTL_MAX_PORTS); 3520} 3521 3522static uint32_t 3523ctl_map_lun(int port_num, uint32_t lun_id) 3524{ 3525 struct ctl_port *port; 3526 3527 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3528 if (port == NULL) 3529 return (UINT32_MAX); 3530 if (port->lun_map == NULL) 3531 return (lun_id); 3532 return (port->lun_map(port->targ_lun_arg, lun_id)); 3533} 3534 3535static uint32_t 3536ctl_map_lun_back(int port_num, uint32_t lun_id) 3537{ 3538 struct ctl_port *port; 3539 uint32_t i; 3540 3541 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3542 if (port->lun_map == NULL) 3543 return (lun_id); 3544 for (i = 0; i < CTL_MAX_LUNS; i++) { 3545 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3546 return (i); 3547 } 3548 return (UINT32_MAX); 3549} 3550 3551/* 3552 * Note: This only works for bitmask sizes that are at least 32 bits, and 3553 * that are a power of 2. 3554 */ 3555int 3556ctl_ffz(uint32_t *mask, uint32_t size) 3557{ 3558 uint32_t num_chunks, num_pieces; 3559 int i, j; 3560 3561 num_chunks = (size >> 5); 3562 if (num_chunks == 0) 3563 num_chunks++; 3564 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3565 3566 for (i = 0; i < num_chunks; i++) { 3567 for (j = 0; j < num_pieces; j++) { 3568 if ((mask[i] & (1 << j)) == 0) 3569 return ((i << 5) + j); 3570 } 3571 } 3572 3573 return (-1); 3574} 3575 3576int 3577ctl_set_mask(uint32_t *mask, uint32_t bit) 3578{ 3579 uint32_t chunk, piece; 3580 3581 chunk = bit >> 5; 3582 piece = bit % (sizeof(uint32_t) * 8); 3583 3584 if ((mask[chunk] & (1 << piece)) != 0) 3585 return (-1); 3586 else 3587 mask[chunk] |= (1 << piece); 3588 3589 return (0); 3590} 3591 3592int 3593ctl_clear_mask(uint32_t *mask, uint32_t bit) 3594{ 3595 uint32_t chunk, piece; 3596 3597 chunk = bit >> 5; 3598 piece = bit % (sizeof(uint32_t) * 8); 3599 3600 if ((mask[chunk] & (1 << piece)) == 0) 3601 return (-1); 3602 else 3603 mask[chunk] &= ~(1 << piece); 3604 3605 return (0); 3606} 3607 3608int 3609ctl_is_set(uint32_t *mask, uint32_t bit) 3610{ 3611 uint32_t chunk, piece; 3612 3613 chunk = bit >> 5; 3614 piece = bit % (sizeof(uint32_t) * 8); 3615 3616 if ((mask[chunk] & (1 << piece)) == 0) 3617 return (0); 3618 else 3619 return (1); 3620} 3621 3622#ifdef unused 3623/* 3624 * The bus, target and lun are optional, they can be filled in later. 3625 * can_wait is used to determine whether we can wait on the malloc or not. 3626 */ 3627union ctl_io* 3628ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3629 uint32_t targ_lun, int can_wait) 3630{ 3631 union ctl_io *io; 3632 3633 if (can_wait) 3634 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3635 else 3636 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3637 3638 if (io != NULL) { 3639 io->io_hdr.io_type = io_type; 3640 io->io_hdr.targ_port = targ_port; 3641 /* 3642 * XXX KDM this needs to change/go away. We need to move 3643 * to a preallocated pool of ctl_scsiio structures. 3644 */ 3645 io->io_hdr.nexus.targ_target.id = targ_target; 3646 io->io_hdr.nexus.targ_lun = targ_lun; 3647 } 3648 3649 return (io); 3650} 3651 3652void 3653ctl_kfree_io(union ctl_io *io) 3654{ 3655 free(io, M_CTL); 3656} 3657#endif /* unused */ 3658 3659/* 3660 * ctl_softc, pool_type, total_ctl_io are passed in. 3661 * npool is passed out. 3662 */ 3663int 3664ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3665 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3666{ 3667 uint32_t i; 3668 union ctl_io *cur_io, *next_io; 3669 struct ctl_io_pool *pool; 3670 int retval; 3671 3672 retval = 0; 3673 3674 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3675 M_NOWAIT | M_ZERO); 3676 if (pool == NULL) { 3677 retval = ENOMEM; 3678 goto bailout; 3679 } 3680 3681 pool->type = pool_type; 3682 pool->ctl_softc = ctl_softc; 3683 3684 mtx_lock(&ctl_softc->pool_lock); 3685 pool->id = ctl_softc->cur_pool_id++; 3686 mtx_unlock(&ctl_softc->pool_lock); 3687 3688 pool->flags = CTL_POOL_FLAG_NONE; 3689 pool->refcount = 1; /* Reference for validity. */ 3690 STAILQ_INIT(&pool->free_queue); 3691 3692 /* 3693 * XXX KDM other options here: 3694 * - allocate a page at a time 3695 * - allocate one big chunk of memory. 3696 * Page allocation might work well, but would take a little more 3697 * tracking. 3698 */ 3699 for (i = 0; i < total_ctl_io; i++) { 3700 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3701 M_NOWAIT); 3702 if (cur_io == NULL) { 3703 retval = ENOMEM; 3704 break; 3705 } 3706 cur_io->io_hdr.pool = pool; 3707 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3708 pool->total_ctl_io++; 3709 pool->free_ctl_io++; 3710 } 3711 3712 if (retval != 0) { 3713 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3714 cur_io != NULL; cur_io = next_io) { 3715 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3716 links); 3717 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3718 ctl_io_hdr, links); 3719 free(cur_io, M_CTLIO); 3720 } 3721 3722 free(pool, M_CTL); 3723 goto bailout; 3724 } 3725 mtx_lock(&ctl_softc->pool_lock); 3726 ctl_softc->num_pools++; 3727 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3728 /* 3729 * Increment our usage count if this is an external consumer, so we 3730 * can't get unloaded until the external consumer (most likely a 3731 * FETD) unloads and frees his pool. 3732 * 3733 * XXX KDM will this increment the caller's module use count, or 3734 * mine? 3735 */ 3736#if 0 3737 if ((pool_type != CTL_POOL_EMERGENCY) 3738 && (pool_type != CTL_POOL_INTERNAL) 3739 && (pool_type != CTL_POOL_4OTHERSC)) 3740 MOD_INC_USE_COUNT; 3741#endif 3742 3743 mtx_unlock(&ctl_softc->pool_lock); 3744 3745 *npool = pool; 3746 3747bailout: 3748 3749 return (retval); 3750} 3751 3752static int 3753ctl_pool_acquire(struct ctl_io_pool *pool) 3754{ 3755 3756 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3757 3758 if (pool->flags & CTL_POOL_FLAG_INVALID) 3759 return (EINVAL); 3760 3761 pool->refcount++; 3762 3763 return (0); 3764} 3765 3766static void 3767ctl_pool_release(struct ctl_io_pool *pool) 3768{ 3769 struct ctl_softc *ctl_softc = pool->ctl_softc; 3770 union ctl_io *io; 3771 3772 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3773 3774 if (--pool->refcount != 0) 3775 return; 3776 3777 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3778 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3779 links); 3780 free(io, M_CTLIO); 3781 } 3782 3783 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3784 ctl_softc->num_pools--; 3785 3786 /* 3787 * XXX KDM will this decrement the caller's usage count or mine? 3788 */ 3789#if 0 3790 if ((pool->type != CTL_POOL_EMERGENCY) 3791 && (pool->type != CTL_POOL_INTERNAL) 3792 && (pool->type != CTL_POOL_4OTHERSC)) 3793 MOD_DEC_USE_COUNT; 3794#endif 3795 3796 free(pool, M_CTL); 3797} 3798 3799void 3800ctl_pool_free(struct ctl_io_pool *pool) 3801{ 3802 struct ctl_softc *ctl_softc; 3803 3804 if (pool == NULL) 3805 return; 3806 3807 ctl_softc = pool->ctl_softc; 3808 mtx_lock(&ctl_softc->pool_lock); 3809 pool->flags |= CTL_POOL_FLAG_INVALID; 3810 ctl_pool_release(pool); 3811 mtx_unlock(&ctl_softc->pool_lock); 3812} 3813 3814/* 3815 * This routine does not block (except for spinlocks of course). 3816 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3817 * possible. 3818 */ 3819union ctl_io * 3820ctl_alloc_io(void *pool_ref) 3821{ 3822 union ctl_io *io; 3823 struct ctl_softc *ctl_softc; 3824 struct ctl_io_pool *pool, *npool; 3825 struct ctl_io_pool *emergency_pool; 3826 3827 pool = (struct ctl_io_pool *)pool_ref; 3828 3829 if (pool == NULL) { 3830 printf("%s: pool is NULL\n", __func__); 3831 return (NULL); 3832 } 3833 3834 emergency_pool = NULL; 3835 3836 ctl_softc = pool->ctl_softc; 3837 3838 mtx_lock(&ctl_softc->pool_lock); 3839 /* 3840 * First, try to get the io structure from the user's pool. 3841 */ 3842 if (ctl_pool_acquire(pool) == 0) { 3843 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3844 if (io != NULL) { 3845 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3846 pool->total_allocated++; 3847 pool->free_ctl_io--; 3848 mtx_unlock(&ctl_softc->pool_lock); 3849 return (io); 3850 } else 3851 ctl_pool_release(pool); 3852 } 3853 /* 3854 * If he doesn't have any io structures left, search for an 3855 * emergency pool and grab one from there. 3856 */ 3857 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3858 if (npool->type != CTL_POOL_EMERGENCY) 3859 continue; 3860 3861 if (ctl_pool_acquire(npool) != 0) 3862 continue; 3863 3864 emergency_pool = npool; 3865 3866 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3867 if (io != NULL) { 3868 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3869 npool->total_allocated++; 3870 npool->free_ctl_io--; 3871 mtx_unlock(&ctl_softc->pool_lock); 3872 return (io); 3873 } else 3874 ctl_pool_release(npool); 3875 } 3876 3877 /* Drop the spinlock before we malloc */ 3878 mtx_unlock(&ctl_softc->pool_lock); 3879 3880 /* 3881 * The emergency pool (if it exists) didn't have one, so try an 3882 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3883 */ 3884 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3885 if (io != NULL) { 3886 /* 3887 * If the emergency pool exists but is empty, add this 3888 * ctl_io to its list when it gets freed. 3889 */ 3890 if (emergency_pool != NULL) { 3891 mtx_lock(&ctl_softc->pool_lock); 3892 if (ctl_pool_acquire(emergency_pool) == 0) { 3893 io->io_hdr.pool = emergency_pool; 3894 emergency_pool->total_ctl_io++; 3895 /* 3896 * Need to bump this, otherwise 3897 * total_allocated and total_freed won't 3898 * match when we no longer have anything 3899 * outstanding. 3900 */ 3901 emergency_pool->total_allocated++; 3902 } 3903 mtx_unlock(&ctl_softc->pool_lock); 3904 } else 3905 io->io_hdr.pool = NULL; 3906 } 3907 3908 return (io); 3909} 3910 3911void 3912ctl_free_io(union ctl_io *io) 3913{ 3914 if (io == NULL) 3915 return; 3916 3917 /* 3918 * If this ctl_io has a pool, return it to that pool. 3919 */ 3920 if (io->io_hdr.pool != NULL) { 3921 struct ctl_io_pool *pool; 3922 3923 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3924 mtx_lock(&pool->ctl_softc->pool_lock); 3925 io->io_hdr.io_type = 0xff; 3926 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3927 pool->total_freed++; 3928 pool->free_ctl_io++; 3929 ctl_pool_release(pool); 3930 mtx_unlock(&pool->ctl_softc->pool_lock); 3931 } else { 3932 /* 3933 * Otherwise, just free it. We probably malloced it and 3934 * the emergency pool wasn't available. 3935 */ 3936 free(io, M_CTLIO); 3937 } 3938 3939} 3940 3941void 3942ctl_zero_io(union ctl_io *io) 3943{ 3944 void *pool_ref; 3945 3946 if (io == NULL) 3947 return; 3948 3949 /* 3950 * May need to preserve linked list pointers at some point too. 3951 */ 3952 pool_ref = io->io_hdr.pool; 3953 3954 memset(io, 0, sizeof(*io)); 3955 3956 io->io_hdr.pool = pool_ref; 3957} 3958 3959/* 3960 * This routine is currently used for internal copies of ctl_ios that need 3961 * to persist for some reason after we've already returned status to the 3962 * FETD. (Thus the flag set.) 3963 * 3964 * XXX XXX 3965 * Note that this makes a blind copy of all fields in the ctl_io, except 3966 * for the pool reference. This includes any memory that has been 3967 * allocated! That memory will no longer be valid after done has been 3968 * called, so this would be VERY DANGEROUS for command that actually does 3969 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3970 * start and stop commands, which don't transfer any data, so this is not a 3971 * problem. If it is used for anything else, the caller would also need to 3972 * allocate data buffer space and this routine would need to be modified to 3973 * copy the data buffer(s) as well. 3974 */ 3975void 3976ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3977{ 3978 void *pool_ref; 3979 3980 if ((src == NULL) 3981 || (dest == NULL)) 3982 return; 3983 3984 /* 3985 * May need to preserve linked list pointers at some point too. 3986 */ 3987 pool_ref = dest->io_hdr.pool; 3988 3989 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3990 3991 dest->io_hdr.pool = pool_ref; 3992 /* 3993 * We need to know that this is an internal copy, and doesn't need 3994 * to get passed back to the FETD that allocated it. 3995 */ 3996 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3997} 3998 3999#ifdef NEEDTOPORT 4000static void 4001ctl_update_power_subpage(struct copan_power_subpage *page) 4002{ 4003 int num_luns, num_partitions, config_type; 4004 struct ctl_softc *softc; 4005 cs_BOOL_t aor_present, shelf_50pct_power; 4006 cs_raidset_personality_t rs_type; 4007 int max_active_luns; 4008 4009 softc = control_softc; 4010 4011 /* subtract out the processor LUN */ 4012 num_luns = softc->num_luns - 1; 4013 /* 4014 * Default to 7 LUNs active, which was the only number we allowed 4015 * in the past. 4016 */ 4017 max_active_luns = 7; 4018 4019 num_partitions = config_GetRsPartitionInfo(); 4020 config_type = config_GetConfigType(); 4021 shelf_50pct_power = config_GetShelfPowerMode(); 4022 aor_present = config_IsAorRsPresent(); 4023 4024 rs_type = ddb_GetRsRaidType(1); 4025 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 4026 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 4027 EPRINT(0, "Unsupported RS type %d!", rs_type); 4028 } 4029 4030 4031 page->total_luns = num_luns; 4032 4033 switch (config_type) { 4034 case 40: 4035 /* 4036 * In a 40 drive configuration, it doesn't matter what DC 4037 * cards we have, whether we have AOR enabled or not, 4038 * partitioning or not, or what type of RAIDset we have. 4039 * In that scenario, we can power up every LUN we present 4040 * to the user. 4041 */ 4042 max_active_luns = num_luns; 4043 4044 break; 4045 case 64: 4046 if (shelf_50pct_power == CS_FALSE) { 4047 /* 25% power */ 4048 if (aor_present == CS_TRUE) { 4049 if (rs_type == 4050 CS_RAIDSET_PERSONALITY_RAID5) { 4051 max_active_luns = 7; 4052 } else if (rs_type == 4053 CS_RAIDSET_PERSONALITY_RAID1){ 4054 max_active_luns = 14; 4055 } else { 4056 /* XXX KDM now what?? */ 4057 } 4058 } else { 4059 if (rs_type == 4060 CS_RAIDSET_PERSONALITY_RAID5) { 4061 max_active_luns = 8; 4062 } else if (rs_type == 4063 CS_RAIDSET_PERSONALITY_RAID1){ 4064 max_active_luns = 16; 4065 } else { 4066 /* XXX KDM now what?? */ 4067 } 4068 } 4069 } else { 4070 /* 50% power */ 4071 /* 4072 * With 50% power in a 64 drive configuration, we 4073 * can power all LUNs we present. 4074 */ 4075 max_active_luns = num_luns; 4076 } 4077 break; 4078 case 112: 4079 if (shelf_50pct_power == CS_FALSE) { 4080 /* 25% power */ 4081 if (aor_present == CS_TRUE) { 4082 if (rs_type == 4083 CS_RAIDSET_PERSONALITY_RAID5) { 4084 max_active_luns = 7; 4085 } else if (rs_type == 4086 CS_RAIDSET_PERSONALITY_RAID1){ 4087 max_active_luns = 14; 4088 } else { 4089 /* XXX KDM now what?? */ 4090 } 4091 } else { 4092 if (rs_type == 4093 CS_RAIDSET_PERSONALITY_RAID5) { 4094 max_active_luns = 8; 4095 } else if (rs_type == 4096 CS_RAIDSET_PERSONALITY_RAID1){ 4097 max_active_luns = 16; 4098 } else { 4099 /* XXX KDM now what?? */ 4100 } 4101 } 4102 } else { 4103 /* 50% power */ 4104 if (aor_present == CS_TRUE) { 4105 if (rs_type == 4106 CS_RAIDSET_PERSONALITY_RAID5) { 4107 max_active_luns = 14; 4108 } else if (rs_type == 4109 CS_RAIDSET_PERSONALITY_RAID1){ 4110 /* 4111 * We're assuming here that disk 4112 * caching is enabled, and so we're 4113 * able to power up half of each 4114 * LUN, and cache all writes. 4115 */ 4116 max_active_luns = num_luns; 4117 } else { 4118 /* XXX KDM now what?? */ 4119 } 4120 } else { 4121 if (rs_type == 4122 CS_RAIDSET_PERSONALITY_RAID5) { 4123 max_active_luns = 15; 4124 } else if (rs_type == 4125 CS_RAIDSET_PERSONALITY_RAID1){ 4126 max_active_luns = 30; 4127 } else { 4128 /* XXX KDM now what?? */ 4129 } 4130 } 4131 } 4132 break; 4133 default: 4134 /* 4135 * In this case, we have an unknown configuration, so we 4136 * just use the default from above. 4137 */ 4138 break; 4139 } 4140 4141 page->max_active_luns = max_active_luns; 4142#if 0 4143 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4144 page->total_luns, page->max_active_luns); 4145#endif 4146} 4147#endif /* NEEDTOPORT */ 4148 4149/* 4150 * This routine could be used in the future to load default and/or saved 4151 * mode page parameters for a particuar lun. 4152 */ 4153static int 4154ctl_init_page_index(struct ctl_lun *lun) 4155{ 4156 int i; 4157 struct ctl_page_index *page_index; 4158 struct ctl_softc *softc; 4159 const char *value; 4160 4161 memcpy(&lun->mode_pages.index, page_index_template, 4162 sizeof(page_index_template)); 4163 4164 softc = lun->ctl_softc; 4165 4166 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4167 4168 page_index = &lun->mode_pages.index[i]; 4169 /* 4170 * If this is a disk-only mode page, there's no point in 4171 * setting it up. For some pages, we have to have some 4172 * basic information about the disk in order to calculate the 4173 * mode page data. 4174 */ 4175 if ((lun->be_lun->lun_type != T_DIRECT) 4176 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4177 continue; 4178 4179 switch (page_index->page_code & SMPH_PC_MASK) { 4180 case SMS_FORMAT_DEVICE_PAGE: { 4181 struct scsi_format_page *format_page; 4182 4183 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4184 panic("subpage is incorrect!"); 4185 4186 /* 4187 * Sectors per track are set above. Bytes per 4188 * sector need to be set here on a per-LUN basis. 4189 */ 4190 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4191 &format_page_default, 4192 sizeof(format_page_default)); 4193 memcpy(&lun->mode_pages.format_page[ 4194 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4195 sizeof(format_page_changeable)); 4196 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4197 &format_page_default, 4198 sizeof(format_page_default)); 4199 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4200 &format_page_default, 4201 sizeof(format_page_default)); 4202 4203 format_page = &lun->mode_pages.format_page[ 4204 CTL_PAGE_CURRENT]; 4205 scsi_ulto2b(lun->be_lun->blocksize, 4206 format_page->bytes_per_sector); 4207 4208 format_page = &lun->mode_pages.format_page[ 4209 CTL_PAGE_DEFAULT]; 4210 scsi_ulto2b(lun->be_lun->blocksize, 4211 format_page->bytes_per_sector); 4212 4213 format_page = &lun->mode_pages.format_page[ 4214 CTL_PAGE_SAVED]; 4215 scsi_ulto2b(lun->be_lun->blocksize, 4216 format_page->bytes_per_sector); 4217 4218 page_index->page_data = 4219 (uint8_t *)lun->mode_pages.format_page; 4220 break; 4221 } 4222 case SMS_RIGID_DISK_PAGE: { 4223 struct scsi_rigid_disk_page *rigid_disk_page; 4224 uint32_t sectors_per_cylinder; 4225 uint64_t cylinders; 4226#ifndef __XSCALE__ 4227 int shift; 4228#endif /* !__XSCALE__ */ 4229 4230 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4231 panic("invalid subpage value %d", 4232 page_index->subpage); 4233 4234 /* 4235 * Rotation rate and sectors per track are set 4236 * above. We calculate the cylinders here based on 4237 * capacity. Due to the number of heads and 4238 * sectors per track we're using, smaller arrays 4239 * may turn out to have 0 cylinders. Linux and 4240 * FreeBSD don't pay attention to these mode pages 4241 * to figure out capacity, but Solaris does. It 4242 * seems to deal with 0 cylinders just fine, and 4243 * works out a fake geometry based on the capacity. 4244 */ 4245 memcpy(&lun->mode_pages.rigid_disk_page[ 4246 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4247 sizeof(rigid_disk_page_default)); 4248 memcpy(&lun->mode_pages.rigid_disk_page[ 4249 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4250 sizeof(rigid_disk_page_changeable)); 4251 memcpy(&lun->mode_pages.rigid_disk_page[ 4252 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4253 sizeof(rigid_disk_page_default)); 4254 memcpy(&lun->mode_pages.rigid_disk_page[ 4255 CTL_PAGE_SAVED], &rigid_disk_page_default, 4256 sizeof(rigid_disk_page_default)); 4257 4258 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4259 CTL_DEFAULT_HEADS; 4260 4261 /* 4262 * The divide method here will be more accurate, 4263 * probably, but results in floating point being 4264 * used in the kernel on i386 (__udivdi3()). On the 4265 * XScale, though, __udivdi3() is implemented in 4266 * software. 4267 * 4268 * The shift method for cylinder calculation is 4269 * accurate if sectors_per_cylinder is a power of 4270 * 2. Otherwise it might be slightly off -- you 4271 * might have a bit of a truncation problem. 4272 */ 4273#ifdef __XSCALE__ 4274 cylinders = (lun->be_lun->maxlba + 1) / 4275 sectors_per_cylinder; 4276#else 4277 for (shift = 31; shift > 0; shift--) { 4278 if (sectors_per_cylinder & (1 << shift)) 4279 break; 4280 } 4281 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4282#endif 4283 4284 /* 4285 * We've basically got 3 bytes, or 24 bits for the 4286 * cylinder size in the mode page. If we're over, 4287 * just round down to 2^24. 4288 */ 4289 if (cylinders > 0xffffff) 4290 cylinders = 0xffffff; 4291 4292 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4293 CTL_PAGE_CURRENT]; 4294 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4295 4296 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4297 CTL_PAGE_DEFAULT]; 4298 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4299 4300 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4301 CTL_PAGE_SAVED]; 4302 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4303 4304 page_index->page_data = 4305 (uint8_t *)lun->mode_pages.rigid_disk_page; 4306 break; 4307 } 4308 case SMS_CACHING_PAGE: { 4309 struct scsi_caching_page *caching_page; 4310 4311 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4312 panic("invalid subpage value %d", 4313 page_index->subpage); 4314 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4315 &caching_page_default, 4316 sizeof(caching_page_default)); 4317 memcpy(&lun->mode_pages.caching_page[ 4318 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4319 sizeof(caching_page_changeable)); 4320 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4321 &caching_page_default, 4322 sizeof(caching_page_default)); 4323 caching_page = &lun->mode_pages.caching_page[ 4324 CTL_PAGE_SAVED]; 4325 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4326 if (value != NULL && strcmp(value, "off") == 0) 4327 caching_page->flags1 &= ~SCP_WCE; 4328 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4329 if (value != NULL && strcmp(value, "off") == 0) 4330 caching_page->flags1 |= SCP_RCD; 4331 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4332 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4333 sizeof(caching_page_default)); 4334 page_index->page_data = 4335 (uint8_t *)lun->mode_pages.caching_page; 4336 break; 4337 } 4338 case SMS_CONTROL_MODE_PAGE: { 4339 struct scsi_control_page *control_page; 4340 4341 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4342 panic("invalid subpage value %d", 4343 page_index->subpage); 4344 4345 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4346 &control_page_default, 4347 sizeof(control_page_default)); 4348 memcpy(&lun->mode_pages.control_page[ 4349 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4350 sizeof(control_page_changeable)); 4351 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4352 &control_page_default, 4353 sizeof(control_page_default)); 4354 control_page = &lun->mode_pages.control_page[ 4355 CTL_PAGE_SAVED]; 4356 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4357 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4358 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4359 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4360 } 4361 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4362 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4363 sizeof(control_page_default)); 4364 page_index->page_data = 4365 (uint8_t *)lun->mode_pages.control_page; 4366 break; 4367 4368 } 4369 case SMS_VENDOR_SPECIFIC_PAGE:{ 4370 switch (page_index->subpage) { 4371 case PWR_SUBPAGE_CODE: { 4372 struct copan_power_subpage *current_page, 4373 *saved_page; 4374 4375 memcpy(&lun->mode_pages.power_subpage[ 4376 CTL_PAGE_CURRENT], 4377 &power_page_default, 4378 sizeof(power_page_default)); 4379 memcpy(&lun->mode_pages.power_subpage[ 4380 CTL_PAGE_CHANGEABLE], 4381 &power_page_changeable, 4382 sizeof(power_page_changeable)); 4383 memcpy(&lun->mode_pages.power_subpage[ 4384 CTL_PAGE_DEFAULT], 4385 &power_page_default, 4386 sizeof(power_page_default)); 4387 memcpy(&lun->mode_pages.power_subpage[ 4388 CTL_PAGE_SAVED], 4389 &power_page_default, 4390 sizeof(power_page_default)); 4391 page_index->page_data = 4392 (uint8_t *)lun->mode_pages.power_subpage; 4393 4394 current_page = (struct copan_power_subpage *) 4395 (page_index->page_data + 4396 (page_index->page_len * 4397 CTL_PAGE_CURRENT)); 4398 saved_page = (struct copan_power_subpage *) 4399 (page_index->page_data + 4400 (page_index->page_len * 4401 CTL_PAGE_SAVED)); 4402 break; 4403 } 4404 case APS_SUBPAGE_CODE: { 4405 struct copan_aps_subpage *current_page, 4406 *saved_page; 4407 4408 // This gets set multiple times but 4409 // it should always be the same. It's 4410 // only done during init so who cares. 4411 index_to_aps_page = i; 4412 4413 memcpy(&lun->mode_pages.aps_subpage[ 4414 CTL_PAGE_CURRENT], 4415 &aps_page_default, 4416 sizeof(aps_page_default)); 4417 memcpy(&lun->mode_pages.aps_subpage[ 4418 CTL_PAGE_CHANGEABLE], 4419 &aps_page_changeable, 4420 sizeof(aps_page_changeable)); 4421 memcpy(&lun->mode_pages.aps_subpage[ 4422 CTL_PAGE_DEFAULT], 4423 &aps_page_default, 4424 sizeof(aps_page_default)); 4425 memcpy(&lun->mode_pages.aps_subpage[ 4426 CTL_PAGE_SAVED], 4427 &aps_page_default, 4428 sizeof(aps_page_default)); 4429 page_index->page_data = 4430 (uint8_t *)lun->mode_pages.aps_subpage; 4431 4432 current_page = (struct copan_aps_subpage *) 4433 (page_index->page_data + 4434 (page_index->page_len * 4435 CTL_PAGE_CURRENT)); 4436 saved_page = (struct copan_aps_subpage *) 4437 (page_index->page_data + 4438 (page_index->page_len * 4439 CTL_PAGE_SAVED)); 4440 break; 4441 } 4442 case DBGCNF_SUBPAGE_CODE: { 4443 struct copan_debugconf_subpage *current_page, 4444 *saved_page; 4445 4446 memcpy(&lun->mode_pages.debugconf_subpage[ 4447 CTL_PAGE_CURRENT], 4448 &debugconf_page_default, 4449 sizeof(debugconf_page_default)); 4450 memcpy(&lun->mode_pages.debugconf_subpage[ 4451 CTL_PAGE_CHANGEABLE], 4452 &debugconf_page_changeable, 4453 sizeof(debugconf_page_changeable)); 4454 memcpy(&lun->mode_pages.debugconf_subpage[ 4455 CTL_PAGE_DEFAULT], 4456 &debugconf_page_default, 4457 sizeof(debugconf_page_default)); 4458 memcpy(&lun->mode_pages.debugconf_subpage[ 4459 CTL_PAGE_SAVED], 4460 &debugconf_page_default, 4461 sizeof(debugconf_page_default)); 4462 page_index->page_data = 4463 (uint8_t *)lun->mode_pages.debugconf_subpage; 4464 4465 current_page = (struct copan_debugconf_subpage *) 4466 (page_index->page_data + 4467 (page_index->page_len * 4468 CTL_PAGE_CURRENT)); 4469 saved_page = (struct copan_debugconf_subpage *) 4470 (page_index->page_data + 4471 (page_index->page_len * 4472 CTL_PAGE_SAVED)); 4473 break; 4474 } 4475 default: 4476 panic("invalid subpage value %d", 4477 page_index->subpage); 4478 break; 4479 } 4480 break; 4481 } 4482 default: 4483 panic("invalid page value %d", 4484 page_index->page_code & SMPH_PC_MASK); 4485 break; 4486 } 4487 } 4488 4489 return (CTL_RETVAL_COMPLETE); 4490} 4491 4492/* 4493 * LUN allocation. 4494 * 4495 * Requirements: 4496 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4497 * wants us to allocate the LUN and he can block. 4498 * - ctl_softc is always set 4499 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4500 * 4501 * Returns 0 for success, non-zero (errno) for failure. 4502 */ 4503static int 4504ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4505 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4506{ 4507 struct ctl_lun *nlun, *lun; 4508 struct ctl_port *port; 4509 struct scsi_vpd_id_descriptor *desc; 4510 struct scsi_vpd_id_t10 *t10id; 4511 const char *eui, *naa, *scsiname, *vendor, *value; 4512 int lun_number, i, lun_malloced; 4513 int devidlen, idlen1, idlen2 = 0, len; 4514 4515 if (be_lun == NULL) 4516 return (EINVAL); 4517 4518 /* 4519 * We currently only support Direct Access or Processor LUN types. 4520 */ 4521 switch (be_lun->lun_type) { 4522 case T_DIRECT: 4523 break; 4524 case T_PROCESSOR: 4525 break; 4526 case T_SEQUENTIAL: 4527 case T_CHANGER: 4528 default: 4529 be_lun->lun_config_status(be_lun->be_lun, 4530 CTL_LUN_CONFIG_FAILURE); 4531 break; 4532 } 4533 if (ctl_lun == NULL) { 4534 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4535 lun_malloced = 1; 4536 } else { 4537 lun_malloced = 0; 4538 lun = ctl_lun; 4539 } 4540 4541 memset(lun, 0, sizeof(*lun)); 4542 if (lun_malloced) 4543 lun->flags = CTL_LUN_MALLOCED; 4544 4545 /* Generate LUN ID. */ 4546 devidlen = max(CTL_DEVID_MIN_LEN, 4547 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4548 idlen1 = sizeof(*t10id) + devidlen; 4549 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4550 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4551 if (scsiname != NULL) { 4552 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4553 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4554 } 4555 eui = ctl_get_opt(&be_lun->options, "eui"); 4556 if (eui != NULL) { 4557 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4558 } 4559 naa = ctl_get_opt(&be_lun->options, "naa"); 4560 if (naa != NULL) { 4561 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4562 } 4563 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4564 M_CTL, M_WAITOK | M_ZERO); 4565 lun->lun_devid->len = len; 4566 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4567 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4568 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4569 desc->length = idlen1; 4570 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4571 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4572 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4573 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4574 } else { 4575 strncpy(t10id->vendor, vendor, 4576 min(sizeof(t10id->vendor), strlen(vendor))); 4577 } 4578 strncpy((char *)t10id->vendor_spec_id, 4579 (char *)be_lun->device_id, devidlen); 4580 if (scsiname != NULL) { 4581 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4582 desc->length); 4583 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4584 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4585 SVPD_ID_TYPE_SCSI_NAME; 4586 desc->length = idlen2; 4587 strlcpy(desc->identifier, scsiname, idlen2); 4588 } 4589 if (eui != NULL) { 4590 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4591 desc->length); 4592 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4593 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4594 SVPD_ID_TYPE_EUI64; 4595 desc->length = 8; 4596 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4597 } 4598 if (naa != NULL) { 4599 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4600 desc->length); 4601 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4602 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4603 SVPD_ID_TYPE_NAA; 4604 desc->length = 8; 4605 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4606 } 4607 4608 mtx_lock(&ctl_softc->ctl_lock); 4609 /* 4610 * See if the caller requested a particular LUN number. If so, see 4611 * if it is available. Otherwise, allocate the first available LUN. 4612 */ 4613 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4614 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4615 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4616 mtx_unlock(&ctl_softc->ctl_lock); 4617 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4618 printf("ctl: requested LUN ID %d is higher " 4619 "than CTL_MAX_LUNS - 1 (%d)\n", 4620 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4621 } else { 4622 /* 4623 * XXX KDM return an error, or just assign 4624 * another LUN ID in this case?? 4625 */ 4626 printf("ctl: requested LUN ID %d is already " 4627 "in use\n", be_lun->req_lun_id); 4628 } 4629 if (lun->flags & CTL_LUN_MALLOCED) 4630 free(lun, M_CTL); 4631 be_lun->lun_config_status(be_lun->be_lun, 4632 CTL_LUN_CONFIG_FAILURE); 4633 return (ENOSPC); 4634 } 4635 lun_number = be_lun->req_lun_id; 4636 } else { 4637 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4638 if (lun_number == -1) { 4639 mtx_unlock(&ctl_softc->ctl_lock); 4640 printf("ctl: can't allocate LUN on target %ju, out of " 4641 "LUNs\n", (uintmax_t)target_id.id); 4642 if (lun->flags & CTL_LUN_MALLOCED) 4643 free(lun, M_CTL); 4644 be_lun->lun_config_status(be_lun->be_lun, 4645 CTL_LUN_CONFIG_FAILURE); 4646 return (ENOSPC); 4647 } 4648 } 4649 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4650 4651 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4652 lun->target = target_id; 4653 lun->lun = lun_number; 4654 lun->be_lun = be_lun; 4655 /* 4656 * The processor LUN is always enabled. Disk LUNs come on line 4657 * disabled, and must be enabled by the backend. 4658 */ 4659 lun->flags |= CTL_LUN_DISABLED; 4660 lun->backend = be_lun->be; 4661 be_lun->ctl_lun = lun; 4662 be_lun->lun_id = lun_number; 4663 atomic_add_int(&be_lun->be->num_luns, 1); 4664 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4665 lun->flags |= CTL_LUN_OFFLINE; 4666 4667 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4668 lun->flags |= CTL_LUN_STOPPED; 4669 4670 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4671 lun->flags |= CTL_LUN_INOPERABLE; 4672 4673 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4674 lun->flags |= CTL_LUN_PRIMARY_SC; 4675 4676 value = ctl_get_opt(&be_lun->options, "readonly"); 4677 if (value != NULL && strcmp(value, "on") == 0) 4678 lun->flags |= CTL_LUN_READONLY; 4679 4680 lun->ctl_softc = ctl_softc; 4681 TAILQ_INIT(&lun->ooa_queue); 4682 TAILQ_INIT(&lun->blocked_queue); 4683 STAILQ_INIT(&lun->error_list); 4684 ctl_tpc_lun_init(lun); 4685 4686 /* 4687 * Initialize the mode page index. 4688 */ 4689 ctl_init_page_index(lun); 4690 4691 /* 4692 * Set the poweron UA for all initiators on this LUN only. 4693 */ 4694 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4695 lun->pending_ua[i] = CTL_UA_POWERON; 4696 4697 /* 4698 * Now, before we insert this lun on the lun list, set the lun 4699 * inventory changed UA for all other luns. 4700 */ 4701 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4702 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4703 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4704 } 4705 } 4706 4707 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4708 4709 ctl_softc->ctl_luns[lun_number] = lun; 4710 4711 ctl_softc->num_luns++; 4712 4713 /* Setup statistics gathering */ 4714 lun->stats.device_type = be_lun->lun_type; 4715 lun->stats.lun_number = lun_number; 4716 if (lun->stats.device_type == T_DIRECT) 4717 lun->stats.blocksize = be_lun->blocksize; 4718 else 4719 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4720 for (i = 0;i < CTL_MAX_PORTS;i++) 4721 lun->stats.ports[i].targ_port = i; 4722 4723 mtx_unlock(&ctl_softc->ctl_lock); 4724 4725 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4726 4727 /* 4728 * Run through each registered FETD and bring it online if it isn't 4729 * already. Enable the target ID if it hasn't been enabled, and 4730 * enable this particular LUN. 4731 */ 4732 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4733 int retval; 4734 4735 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4736 if (retval != 0) { 4737 printf("ctl_alloc_lun: FETD %s port %d returned error " 4738 "%d for lun_enable on target %ju lun %d\n", 4739 port->port_name, port->targ_port, retval, 4740 (uintmax_t)target_id.id, lun_number); 4741 } else 4742 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4743 } 4744 return (0); 4745} 4746 4747/* 4748 * Delete a LUN. 4749 * Assumptions: 4750 * - LUN has already been marked invalid and any pending I/O has been taken 4751 * care of. 4752 */ 4753static int 4754ctl_free_lun(struct ctl_lun *lun) 4755{ 4756 struct ctl_softc *softc; 4757#if 0 4758 struct ctl_port *port; 4759#endif 4760 struct ctl_lun *nlun; 4761 int i; 4762 4763 softc = lun->ctl_softc; 4764 4765 mtx_assert(&softc->ctl_lock, MA_OWNED); 4766 4767 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4768 4769 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4770 4771 softc->ctl_luns[lun->lun] = NULL; 4772 4773 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4774 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4775 4776 softc->num_luns--; 4777 4778 /* 4779 * XXX KDM this scheme only works for a single target/multiple LUN 4780 * setup. It needs to be revamped for a multiple target scheme. 4781 * 4782 * XXX KDM this results in port->lun_disable() getting called twice, 4783 * once when ctl_disable_lun() is called, and a second time here. 4784 * We really need to re-think the LUN disable semantics. There 4785 * should probably be several steps/levels to LUN removal: 4786 * - disable 4787 * - invalidate 4788 * - free 4789 * 4790 * Right now we only have a disable method when communicating to 4791 * the front end ports, at least for individual LUNs. 4792 */ 4793#if 0 4794 STAILQ_FOREACH(port, &softc->port_list, links) { 4795 int retval; 4796 4797 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4798 lun->lun); 4799 if (retval != 0) { 4800 printf("ctl_free_lun: FETD %s port %d returned error " 4801 "%d for lun_disable on target %ju lun %jd\n", 4802 port->port_name, port->targ_port, retval, 4803 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4804 } 4805 4806 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4807 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4808 4809 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4810 if (retval != 0) { 4811 printf("ctl_free_lun: FETD %s port %d " 4812 "returned error %d for targ_disable on " 4813 "target %ju\n", port->port_name, 4814 port->targ_port, retval, 4815 (uintmax_t)lun->target.id); 4816 } else 4817 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4818 4819 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4820 continue; 4821 4822#if 0 4823 port->port_offline(port->onoff_arg); 4824 port->status &= ~CTL_PORT_STATUS_ONLINE; 4825#endif 4826 } 4827 } 4828#endif 4829 4830 /* 4831 * Tell the backend to free resources, if this LUN has a backend. 4832 */ 4833 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4834 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4835 4836 ctl_tpc_lun_shutdown(lun); 4837 mtx_destroy(&lun->lun_lock); 4838 free(lun->lun_devid, M_CTL); 4839 if (lun->flags & CTL_LUN_MALLOCED) 4840 free(lun, M_CTL); 4841 4842 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4843 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4844 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4845 } 4846 } 4847 4848 return (0); 4849} 4850 4851static void 4852ctl_create_lun(struct ctl_be_lun *be_lun) 4853{ 4854 struct ctl_softc *ctl_softc; 4855 4856 ctl_softc = control_softc; 4857 4858 /* 4859 * ctl_alloc_lun() should handle all potential failure cases. 4860 */ 4861 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4862} 4863 4864int 4865ctl_add_lun(struct ctl_be_lun *be_lun) 4866{ 4867 struct ctl_softc *ctl_softc = control_softc; 4868 4869 mtx_lock(&ctl_softc->ctl_lock); 4870 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4871 mtx_unlock(&ctl_softc->ctl_lock); 4872 wakeup(&ctl_softc->pending_lun_queue); 4873 4874 return (0); 4875} 4876 4877int 4878ctl_enable_lun(struct ctl_be_lun *be_lun) 4879{ 4880 struct ctl_softc *ctl_softc; 4881 struct ctl_port *port, *nport; 4882 struct ctl_lun *lun; 4883 int retval; 4884 4885 ctl_softc = control_softc; 4886 4887 lun = (struct ctl_lun *)be_lun->ctl_lun; 4888 4889 mtx_lock(&ctl_softc->ctl_lock); 4890 mtx_lock(&lun->lun_lock); 4891 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4892 /* 4893 * eh? Why did we get called if the LUN is already 4894 * enabled? 4895 */ 4896 mtx_unlock(&lun->lun_lock); 4897 mtx_unlock(&ctl_softc->ctl_lock); 4898 return (0); 4899 } 4900 lun->flags &= ~CTL_LUN_DISABLED; 4901 mtx_unlock(&lun->lun_lock); 4902 4903 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4904 nport = STAILQ_NEXT(port, links); 4905 4906 /* 4907 * Drop the lock while we call the FETD's enable routine. 4908 * This can lead to a callback into CTL (at least in the 4909 * case of the internal initiator frontend. 4910 */ 4911 mtx_unlock(&ctl_softc->ctl_lock); 4912 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4913 mtx_lock(&ctl_softc->ctl_lock); 4914 if (retval != 0) { 4915 printf("%s: FETD %s port %d returned error " 4916 "%d for lun_enable on target %ju lun %jd\n", 4917 __func__, port->port_name, port->targ_port, retval, 4918 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4919 } 4920#if 0 4921 else { 4922 /* NOTE: TODO: why does lun enable affect port status? */ 4923 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4924 } 4925#endif 4926 } 4927 4928 mtx_unlock(&ctl_softc->ctl_lock); 4929 4930 return (0); 4931} 4932 4933int 4934ctl_disable_lun(struct ctl_be_lun *be_lun) 4935{ 4936 struct ctl_softc *ctl_softc; 4937 struct ctl_port *port; 4938 struct ctl_lun *lun; 4939 int retval; 4940 4941 ctl_softc = control_softc; 4942 4943 lun = (struct ctl_lun *)be_lun->ctl_lun; 4944 4945 mtx_lock(&ctl_softc->ctl_lock); 4946 mtx_lock(&lun->lun_lock); 4947 if (lun->flags & CTL_LUN_DISABLED) { 4948 mtx_unlock(&lun->lun_lock); 4949 mtx_unlock(&ctl_softc->ctl_lock); 4950 return (0); 4951 } 4952 lun->flags |= CTL_LUN_DISABLED; 4953 mtx_unlock(&lun->lun_lock); 4954 4955 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4956 mtx_unlock(&ctl_softc->ctl_lock); 4957 /* 4958 * Drop the lock before we call the frontend's disable 4959 * routine, to avoid lock order reversals. 4960 * 4961 * XXX KDM what happens if the frontend list changes while 4962 * we're traversing it? It's unlikely, but should be handled. 4963 */ 4964 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4965 lun->lun); 4966 mtx_lock(&ctl_softc->ctl_lock); 4967 if (retval != 0) { 4968 printf("ctl_alloc_lun: FETD %s port %d returned error " 4969 "%d for lun_disable on target %ju lun %jd\n", 4970 port->port_name, port->targ_port, retval, 4971 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4972 } 4973 } 4974 4975 mtx_unlock(&ctl_softc->ctl_lock); 4976 4977 return (0); 4978} 4979 4980int 4981ctl_start_lun(struct ctl_be_lun *be_lun) 4982{ 4983 struct ctl_softc *ctl_softc; 4984 struct ctl_lun *lun; 4985 4986 ctl_softc = control_softc; 4987 4988 lun = (struct ctl_lun *)be_lun->ctl_lun; 4989 4990 mtx_lock(&lun->lun_lock); 4991 lun->flags &= ~CTL_LUN_STOPPED; 4992 mtx_unlock(&lun->lun_lock); 4993 4994 return (0); 4995} 4996 4997int 4998ctl_stop_lun(struct ctl_be_lun *be_lun) 4999{ 5000 struct ctl_softc *ctl_softc; 5001 struct ctl_lun *lun; 5002 5003 ctl_softc = control_softc; 5004 5005 lun = (struct ctl_lun *)be_lun->ctl_lun; 5006 5007 mtx_lock(&lun->lun_lock); 5008 lun->flags |= CTL_LUN_STOPPED; 5009 mtx_unlock(&lun->lun_lock); 5010 5011 return (0); 5012} 5013 5014int 5015ctl_lun_offline(struct ctl_be_lun *be_lun) 5016{ 5017 struct ctl_softc *ctl_softc; 5018 struct ctl_lun *lun; 5019 5020 ctl_softc = control_softc; 5021 5022 lun = (struct ctl_lun *)be_lun->ctl_lun; 5023 5024 mtx_lock(&lun->lun_lock); 5025 lun->flags |= CTL_LUN_OFFLINE; 5026 mtx_unlock(&lun->lun_lock); 5027 5028 return (0); 5029} 5030 5031int 5032ctl_lun_online(struct ctl_be_lun *be_lun) 5033{ 5034 struct ctl_softc *ctl_softc; 5035 struct ctl_lun *lun; 5036 5037 ctl_softc = control_softc; 5038 5039 lun = (struct ctl_lun *)be_lun->ctl_lun; 5040 5041 mtx_lock(&lun->lun_lock); 5042 lun->flags &= ~CTL_LUN_OFFLINE; 5043 mtx_unlock(&lun->lun_lock); 5044 5045 return (0); 5046} 5047 5048int 5049ctl_invalidate_lun(struct ctl_be_lun *be_lun) 5050{ 5051 struct ctl_softc *ctl_softc; 5052 struct ctl_lun *lun; 5053 5054 ctl_softc = control_softc; 5055 5056 lun = (struct ctl_lun *)be_lun->ctl_lun; 5057 5058 mtx_lock(&lun->lun_lock); 5059 5060 /* 5061 * The LUN needs to be disabled before it can be marked invalid. 5062 */ 5063 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5064 mtx_unlock(&lun->lun_lock); 5065 return (-1); 5066 } 5067 /* 5068 * Mark the LUN invalid. 5069 */ 5070 lun->flags |= CTL_LUN_INVALID; 5071 5072 /* 5073 * If there is nothing in the OOA queue, go ahead and free the LUN. 5074 * If we have something in the OOA queue, we'll free it when the 5075 * last I/O completes. 5076 */ 5077 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5078 mtx_unlock(&lun->lun_lock); 5079 mtx_lock(&ctl_softc->ctl_lock); 5080 ctl_free_lun(lun); 5081 mtx_unlock(&ctl_softc->ctl_lock); 5082 } else 5083 mtx_unlock(&lun->lun_lock); 5084 5085 return (0); 5086} 5087 5088int 5089ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5090{ 5091 struct ctl_softc *ctl_softc; 5092 struct ctl_lun *lun; 5093 5094 ctl_softc = control_softc; 5095 lun = (struct ctl_lun *)be_lun->ctl_lun; 5096 5097 mtx_lock(&lun->lun_lock); 5098 lun->flags |= CTL_LUN_INOPERABLE; 5099 mtx_unlock(&lun->lun_lock); 5100 5101 return (0); 5102} 5103 5104int 5105ctl_lun_operable(struct ctl_be_lun *be_lun) 5106{ 5107 struct ctl_softc *ctl_softc; 5108 struct ctl_lun *lun; 5109 5110 ctl_softc = control_softc; 5111 lun = (struct ctl_lun *)be_lun->ctl_lun; 5112 5113 mtx_lock(&lun->lun_lock); 5114 lun->flags &= ~CTL_LUN_INOPERABLE; 5115 mtx_unlock(&lun->lun_lock); 5116 5117 return (0); 5118} 5119 5120int 5121ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5122 int lock) 5123{ 5124 struct ctl_softc *softc; 5125 struct ctl_lun *lun; 5126 struct copan_aps_subpage *current_sp; 5127 struct ctl_page_index *page_index; 5128 int i; 5129 5130 softc = control_softc; 5131 5132 mtx_lock(&softc->ctl_lock); 5133 5134 lun = (struct ctl_lun *)be_lun->ctl_lun; 5135 mtx_lock(&lun->lun_lock); 5136 5137 page_index = NULL; 5138 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5139 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5140 APS_PAGE_CODE) 5141 continue; 5142 5143 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5144 continue; 5145 page_index = &lun->mode_pages.index[i]; 5146 } 5147 5148 if (page_index == NULL) { 5149 mtx_unlock(&lun->lun_lock); 5150 mtx_unlock(&softc->ctl_lock); 5151 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5152 (uintmax_t)lun->lun); 5153 return (1); 5154 } 5155#if 0 5156 if ((softc->aps_locked_lun != 0) 5157 && (softc->aps_locked_lun != lun->lun)) { 5158 printf("%s: attempt to lock LUN %llu when %llu is already " 5159 "locked\n"); 5160 mtx_unlock(&lun->lun_lock); 5161 mtx_unlock(&softc->ctl_lock); 5162 return (1); 5163 } 5164#endif 5165 5166 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5167 (page_index->page_len * CTL_PAGE_CURRENT)); 5168 5169 if (lock != 0) { 5170 current_sp->lock_active = APS_LOCK_ACTIVE; 5171 softc->aps_locked_lun = lun->lun; 5172 } else { 5173 current_sp->lock_active = 0; 5174 softc->aps_locked_lun = 0; 5175 } 5176 5177 5178 /* 5179 * If we're in HA mode, try to send the lock message to the other 5180 * side. 5181 */ 5182 if (ctl_is_single == 0) { 5183 int isc_retval; 5184 union ctl_ha_msg lock_msg; 5185 5186 lock_msg.hdr.nexus = *nexus; 5187 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5188 if (lock != 0) 5189 lock_msg.aps.lock_flag = 1; 5190 else 5191 lock_msg.aps.lock_flag = 0; 5192 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5193 sizeof(lock_msg), 0); 5194 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5195 printf("%s: APS (lock=%d) error returned from " 5196 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5197 mtx_unlock(&lun->lun_lock); 5198 mtx_unlock(&softc->ctl_lock); 5199 return (1); 5200 } 5201 } 5202 5203 mtx_unlock(&lun->lun_lock); 5204 mtx_unlock(&softc->ctl_lock); 5205 5206 return (0); 5207} 5208 5209void 5210ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5211{ 5212 struct ctl_lun *lun; 5213 struct ctl_softc *softc; 5214 int i; 5215 5216 softc = control_softc; 5217 5218 lun = (struct ctl_lun *)be_lun->ctl_lun; 5219 5220 mtx_lock(&lun->lun_lock); 5221 5222 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5223 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5224 5225 mtx_unlock(&lun->lun_lock); 5226} 5227 5228/* 5229 * Backend "memory move is complete" callback for requests that never 5230 * make it down to say RAIDCore's configuration code. 5231 */ 5232int 5233ctl_config_move_done(union ctl_io *io) 5234{ 5235 int retval; 5236 5237 retval = CTL_RETVAL_COMPLETE; 5238 5239 5240 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5241 /* 5242 * XXX KDM this shouldn't happen, but what if it does? 5243 */ 5244 if (io->io_hdr.io_type != CTL_IO_SCSI) 5245 panic("I/O type isn't CTL_IO_SCSI!"); 5246 5247 if ((io->io_hdr.port_status == 0) 5248 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5249 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5250 io->io_hdr.status = CTL_SUCCESS; 5251 else if ((io->io_hdr.port_status != 0) 5252 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5253 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5254 /* 5255 * For hardware error sense keys, the sense key 5256 * specific value is defined to be a retry count, 5257 * but we use it to pass back an internal FETD 5258 * error code. XXX KDM Hopefully the FETD is only 5259 * using 16 bits for an error code, since that's 5260 * all the space we have in the sks field. 5261 */ 5262 ctl_set_internal_failure(&io->scsiio, 5263 /*sks_valid*/ 1, 5264 /*retry_count*/ 5265 io->io_hdr.port_status); 5266 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5267 free(io->scsiio.kern_data_ptr, M_CTL); 5268 ctl_done(io); 5269 goto bailout; 5270 } 5271 5272 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5273 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5274 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5275 /* 5276 * XXX KDM just assuming a single pointer here, and not a 5277 * S/G list. If we start using S/G lists for config data, 5278 * we'll need to know how to clean them up here as well. 5279 */ 5280 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5281 free(io->scsiio.kern_data_ptr, M_CTL); 5282 /* Hopefully the user has already set the status... */ 5283 ctl_done(io); 5284 } else { 5285 /* 5286 * XXX KDM now we need to continue data movement. Some 5287 * options: 5288 * - call ctl_scsiio() again? We don't do this for data 5289 * writes, because for those at least we know ahead of 5290 * time where the write will go and how long it is. For 5291 * config writes, though, that information is largely 5292 * contained within the write itself, thus we need to 5293 * parse out the data again. 5294 * 5295 * - Call some other function once the data is in? 5296 */ 5297 5298 /* 5299 * XXX KDM call ctl_scsiio() again for now, and check flag 5300 * bits to see whether we're allocated or not. 5301 */ 5302 retval = ctl_scsiio(&io->scsiio); 5303 } 5304bailout: 5305 return (retval); 5306} 5307 5308/* 5309 * This gets called by a backend driver when it is done with a 5310 * data_submit method. 5311 */ 5312void 5313ctl_data_submit_done(union ctl_io *io) 5314{ 5315 /* 5316 * If the IO_CONT flag is set, we need to call the supplied 5317 * function to continue processing the I/O, instead of completing 5318 * the I/O just yet. 5319 * 5320 * If there is an error, though, we don't want to keep processing. 5321 * Instead, just send status back to the initiator. 5322 */ 5323 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5324 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5325 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5326 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5327 io->scsiio.io_cont(io); 5328 return; 5329 } 5330 ctl_done(io); 5331} 5332 5333/* 5334 * This gets called by a backend driver when it is done with a 5335 * configuration write. 5336 */ 5337void 5338ctl_config_write_done(union ctl_io *io) 5339{ 5340 uint8_t *buf; 5341 5342 /* 5343 * If the IO_CONT flag is set, we need to call the supplied 5344 * function to continue processing the I/O, instead of completing 5345 * the I/O just yet. 5346 * 5347 * If there is an error, though, we don't want to keep processing. 5348 * Instead, just send status back to the initiator. 5349 */ 5350 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5351 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5352 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5353 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5354 io->scsiio.io_cont(io); 5355 return; 5356 } 5357 /* 5358 * Since a configuration write can be done for commands that actually 5359 * have data allocated, like write buffer, and commands that have 5360 * no data, like start/stop unit, we need to check here. 5361 */ 5362 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5363 buf = io->scsiio.kern_data_ptr; 5364 else 5365 buf = NULL; 5366 ctl_done(io); 5367 if (buf) 5368 free(buf, M_CTL); 5369} 5370 5371/* 5372 * SCSI release command. 5373 */ 5374int 5375ctl_scsi_release(struct ctl_scsiio *ctsio) 5376{ 5377 int length, longid, thirdparty_id, resv_id; 5378 struct ctl_softc *ctl_softc; 5379 struct ctl_lun *lun; 5380 uint32_t residx; 5381 5382 length = 0; 5383 resv_id = 0; 5384 5385 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5386 5387 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5388 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5389 ctl_softc = control_softc; 5390 5391 switch (ctsio->cdb[0]) { 5392 case RELEASE_10: { 5393 struct scsi_release_10 *cdb; 5394 5395 cdb = (struct scsi_release_10 *)ctsio->cdb; 5396 5397 if (cdb->byte2 & SR10_LONGID) 5398 longid = 1; 5399 else 5400 thirdparty_id = cdb->thirdparty_id; 5401 5402 resv_id = cdb->resv_id; 5403 length = scsi_2btoul(cdb->length); 5404 break; 5405 } 5406 } 5407 5408 5409 /* 5410 * XXX KDM right now, we only support LUN reservation. We don't 5411 * support 3rd party reservations, or extent reservations, which 5412 * might actually need the parameter list. If we've gotten this 5413 * far, we've got a LUN reservation. Anything else got kicked out 5414 * above. So, according to SPC, ignore the length. 5415 */ 5416 length = 0; 5417 5418 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5419 && (length > 0)) { 5420 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5421 ctsio->kern_data_len = length; 5422 ctsio->kern_total_len = length; 5423 ctsio->kern_data_resid = 0; 5424 ctsio->kern_rel_offset = 0; 5425 ctsio->kern_sg_entries = 0; 5426 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5427 ctsio->be_move_done = ctl_config_move_done; 5428 ctl_datamove((union ctl_io *)ctsio); 5429 5430 return (CTL_RETVAL_COMPLETE); 5431 } 5432 5433 if (length > 0) 5434 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5435 5436 mtx_lock(&lun->lun_lock); 5437 5438 /* 5439 * According to SPC, it is not an error for an intiator to attempt 5440 * to release a reservation on a LUN that isn't reserved, or that 5441 * is reserved by another initiator. The reservation can only be 5442 * released, though, by the initiator who made it or by one of 5443 * several reset type events. 5444 */ 5445 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5446 lun->flags &= ~CTL_LUN_RESERVED; 5447 5448 mtx_unlock(&lun->lun_lock); 5449 5450 ctsio->scsi_status = SCSI_STATUS_OK; 5451 ctsio->io_hdr.status = CTL_SUCCESS; 5452 5453 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5454 free(ctsio->kern_data_ptr, M_CTL); 5455 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5456 } 5457 5458 ctl_done((union ctl_io *)ctsio); 5459 return (CTL_RETVAL_COMPLETE); 5460} 5461 5462int 5463ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5464{ 5465 int extent, thirdparty, longid; 5466 int resv_id, length; 5467 uint64_t thirdparty_id; 5468 struct ctl_softc *ctl_softc; 5469 struct ctl_lun *lun; 5470 uint32_t residx; 5471 5472 extent = 0; 5473 thirdparty = 0; 5474 longid = 0; 5475 resv_id = 0; 5476 length = 0; 5477 thirdparty_id = 0; 5478 5479 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5480 5481 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5482 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5483 ctl_softc = control_softc; 5484 5485 switch (ctsio->cdb[0]) { 5486 case RESERVE_10: { 5487 struct scsi_reserve_10 *cdb; 5488 5489 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5490 5491 if (cdb->byte2 & SR10_LONGID) 5492 longid = 1; 5493 else 5494 thirdparty_id = cdb->thirdparty_id; 5495 5496 resv_id = cdb->resv_id; 5497 length = scsi_2btoul(cdb->length); 5498 break; 5499 } 5500 } 5501 5502 /* 5503 * XXX KDM right now, we only support LUN reservation. We don't 5504 * support 3rd party reservations, or extent reservations, which 5505 * might actually need the parameter list. If we've gotten this 5506 * far, we've got a LUN reservation. Anything else got kicked out 5507 * above. So, according to SPC, ignore the length. 5508 */ 5509 length = 0; 5510 5511 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5512 && (length > 0)) { 5513 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5514 ctsio->kern_data_len = length; 5515 ctsio->kern_total_len = length; 5516 ctsio->kern_data_resid = 0; 5517 ctsio->kern_rel_offset = 0; 5518 ctsio->kern_sg_entries = 0; 5519 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5520 ctsio->be_move_done = ctl_config_move_done; 5521 ctl_datamove((union ctl_io *)ctsio); 5522 5523 return (CTL_RETVAL_COMPLETE); 5524 } 5525 5526 if (length > 0) 5527 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5528 5529 mtx_lock(&lun->lun_lock); 5530 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5531 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5532 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5533 goto bailout; 5534 } 5535 5536 lun->flags |= CTL_LUN_RESERVED; 5537 lun->res_idx = residx; 5538 5539 ctsio->scsi_status = SCSI_STATUS_OK; 5540 ctsio->io_hdr.status = CTL_SUCCESS; 5541 5542bailout: 5543 mtx_unlock(&lun->lun_lock); 5544 5545 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5546 free(ctsio->kern_data_ptr, M_CTL); 5547 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5548 } 5549 5550 ctl_done((union ctl_io *)ctsio); 5551 return (CTL_RETVAL_COMPLETE); 5552} 5553 5554int 5555ctl_start_stop(struct ctl_scsiio *ctsio) 5556{ 5557 struct scsi_start_stop_unit *cdb; 5558 struct ctl_lun *lun; 5559 struct ctl_softc *ctl_softc; 5560 int retval; 5561 5562 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5563 5564 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5565 ctl_softc = control_softc; 5566 retval = 0; 5567 5568 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5569 5570 /* 5571 * XXX KDM 5572 * We don't support the immediate bit on a stop unit. In order to 5573 * do that, we would need to code up a way to know that a stop is 5574 * pending, and hold off any new commands until it completes, one 5575 * way or another. Then we could accept or reject those commands 5576 * depending on its status. We would almost need to do the reverse 5577 * of what we do below for an immediate start -- return the copy of 5578 * the ctl_io to the FETD with status to send to the host (and to 5579 * free the copy!) and then free the original I/O once the stop 5580 * actually completes. That way, the OOA queue mechanism can work 5581 * to block commands that shouldn't proceed. Another alternative 5582 * would be to put the copy in the queue in place of the original, 5583 * and return the original back to the caller. That could be 5584 * slightly safer.. 5585 */ 5586 if ((cdb->byte2 & SSS_IMMED) 5587 && ((cdb->how & SSS_START) == 0)) { 5588 ctl_set_invalid_field(ctsio, 5589 /*sks_valid*/ 1, 5590 /*command*/ 1, 5591 /*field*/ 1, 5592 /*bit_valid*/ 1, 5593 /*bit*/ 0); 5594 ctl_done((union ctl_io *)ctsio); 5595 return (CTL_RETVAL_COMPLETE); 5596 } 5597 5598 if ((lun->flags & CTL_LUN_PR_RESERVED) 5599 && ((cdb->how & SSS_START)==0)) { 5600 uint32_t residx; 5601 5602 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5603 if (lun->pr_keys[residx] == 0 5604 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5605 5606 ctl_set_reservation_conflict(ctsio); 5607 ctl_done((union ctl_io *)ctsio); 5608 return (CTL_RETVAL_COMPLETE); 5609 } 5610 } 5611 5612 /* 5613 * If there is no backend on this device, we can't start or stop 5614 * it. In theory we shouldn't get any start/stop commands in the 5615 * first place at this level if the LUN doesn't have a backend. 5616 * That should get stopped by the command decode code. 5617 */ 5618 if (lun->backend == NULL) { 5619 ctl_set_invalid_opcode(ctsio); 5620 ctl_done((union ctl_io *)ctsio); 5621 return (CTL_RETVAL_COMPLETE); 5622 } 5623 5624 /* 5625 * XXX KDM Copan-specific offline behavior. 5626 * Figure out a reasonable way to port this? 5627 */ 5628#ifdef NEEDTOPORT 5629 mtx_lock(&lun->lun_lock); 5630 5631 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5632 && (lun->flags & CTL_LUN_OFFLINE)) { 5633 /* 5634 * If the LUN is offline, and the on/offline bit isn't set, 5635 * reject the start or stop. Otherwise, let it through. 5636 */ 5637 mtx_unlock(&lun->lun_lock); 5638 ctl_set_lun_not_ready(ctsio); 5639 ctl_done((union ctl_io *)ctsio); 5640 } else { 5641 mtx_unlock(&lun->lun_lock); 5642#endif /* NEEDTOPORT */ 5643 /* 5644 * This could be a start or a stop when we're online, 5645 * or a stop/offline or start/online. A start or stop when 5646 * we're offline is covered in the case above. 5647 */ 5648 /* 5649 * In the non-immediate case, we send the request to 5650 * the backend and return status to the user when 5651 * it is done. 5652 * 5653 * In the immediate case, we allocate a new ctl_io 5654 * to hold a copy of the request, and send that to 5655 * the backend. We then set good status on the 5656 * user's request and return it immediately. 5657 */ 5658 if (cdb->byte2 & SSS_IMMED) { 5659 union ctl_io *new_io; 5660 5661 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5662 if (new_io == NULL) { 5663 ctl_set_busy(ctsio); 5664 ctl_done((union ctl_io *)ctsio); 5665 } else { 5666 ctl_copy_io((union ctl_io *)ctsio, 5667 new_io); 5668 retval = lun->backend->config_write(new_io); 5669 ctl_set_success(ctsio); 5670 ctl_done((union ctl_io *)ctsio); 5671 } 5672 } else { 5673 retval = lun->backend->config_write( 5674 (union ctl_io *)ctsio); 5675 } 5676#ifdef NEEDTOPORT 5677 } 5678#endif 5679 return (retval); 5680} 5681 5682/* 5683 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5684 * we don't really do anything with the LBA and length fields if the user 5685 * passes them in. Instead we'll just flush out the cache for the entire 5686 * LUN. 5687 */ 5688int 5689ctl_sync_cache(struct ctl_scsiio *ctsio) 5690{ 5691 struct ctl_lun *lun; 5692 struct ctl_softc *ctl_softc; 5693 uint64_t starting_lba; 5694 uint32_t block_count; 5695 int retval; 5696 5697 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5698 5699 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5700 ctl_softc = control_softc; 5701 retval = 0; 5702 5703 switch (ctsio->cdb[0]) { 5704 case SYNCHRONIZE_CACHE: { 5705 struct scsi_sync_cache *cdb; 5706 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5707 5708 starting_lba = scsi_4btoul(cdb->begin_lba); 5709 block_count = scsi_2btoul(cdb->lb_count); 5710 break; 5711 } 5712 case SYNCHRONIZE_CACHE_16: { 5713 struct scsi_sync_cache_16 *cdb; 5714 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5715 5716 starting_lba = scsi_8btou64(cdb->begin_lba); 5717 block_count = scsi_4btoul(cdb->lb_count); 5718 break; 5719 } 5720 default: 5721 ctl_set_invalid_opcode(ctsio); 5722 ctl_done((union ctl_io *)ctsio); 5723 goto bailout; 5724 break; /* NOTREACHED */ 5725 } 5726 5727 /* 5728 * We check the LBA and length, but don't do anything with them. 5729 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5730 * get flushed. This check will just help satisfy anyone who wants 5731 * to see an error for an out of range LBA. 5732 */ 5733 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5734 ctl_set_lba_out_of_range(ctsio); 5735 ctl_done((union ctl_io *)ctsio); 5736 goto bailout; 5737 } 5738 5739 /* 5740 * If this LUN has no backend, we can't flush the cache anyway. 5741 */ 5742 if (lun->backend == NULL) { 5743 ctl_set_invalid_opcode(ctsio); 5744 ctl_done((union ctl_io *)ctsio); 5745 goto bailout; 5746 } 5747 5748 /* 5749 * Check to see whether we're configured to send the SYNCHRONIZE 5750 * CACHE command directly to the back end. 5751 */ 5752 mtx_lock(&lun->lun_lock); 5753 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5754 && (++(lun->sync_count) >= lun->sync_interval)) { 5755 lun->sync_count = 0; 5756 mtx_unlock(&lun->lun_lock); 5757 retval = lun->backend->config_write((union ctl_io *)ctsio); 5758 } else { 5759 mtx_unlock(&lun->lun_lock); 5760 ctl_set_success(ctsio); 5761 ctl_done((union ctl_io *)ctsio); 5762 } 5763 5764bailout: 5765 5766 return (retval); 5767} 5768 5769int 5770ctl_format(struct ctl_scsiio *ctsio) 5771{ 5772 struct scsi_format *cdb; 5773 struct ctl_lun *lun; 5774 struct ctl_softc *ctl_softc; 5775 int length, defect_list_len; 5776 5777 CTL_DEBUG_PRINT(("ctl_format\n")); 5778 5779 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5780 ctl_softc = control_softc; 5781 5782 cdb = (struct scsi_format *)ctsio->cdb; 5783 5784 length = 0; 5785 if (cdb->byte2 & SF_FMTDATA) { 5786 if (cdb->byte2 & SF_LONGLIST) 5787 length = sizeof(struct scsi_format_header_long); 5788 else 5789 length = sizeof(struct scsi_format_header_short); 5790 } 5791 5792 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5793 && (length > 0)) { 5794 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5795 ctsio->kern_data_len = length; 5796 ctsio->kern_total_len = length; 5797 ctsio->kern_data_resid = 0; 5798 ctsio->kern_rel_offset = 0; 5799 ctsio->kern_sg_entries = 0; 5800 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5801 ctsio->be_move_done = ctl_config_move_done; 5802 ctl_datamove((union ctl_io *)ctsio); 5803 5804 return (CTL_RETVAL_COMPLETE); 5805 } 5806 5807 defect_list_len = 0; 5808 5809 if (cdb->byte2 & SF_FMTDATA) { 5810 if (cdb->byte2 & SF_LONGLIST) { 5811 struct scsi_format_header_long *header; 5812 5813 header = (struct scsi_format_header_long *) 5814 ctsio->kern_data_ptr; 5815 5816 defect_list_len = scsi_4btoul(header->defect_list_len); 5817 if (defect_list_len != 0) { 5818 ctl_set_invalid_field(ctsio, 5819 /*sks_valid*/ 1, 5820 /*command*/ 0, 5821 /*field*/ 2, 5822 /*bit_valid*/ 0, 5823 /*bit*/ 0); 5824 goto bailout; 5825 } 5826 } else { 5827 struct scsi_format_header_short *header; 5828 5829 header = (struct scsi_format_header_short *) 5830 ctsio->kern_data_ptr; 5831 5832 defect_list_len = scsi_2btoul(header->defect_list_len); 5833 if (defect_list_len != 0) { 5834 ctl_set_invalid_field(ctsio, 5835 /*sks_valid*/ 1, 5836 /*command*/ 0, 5837 /*field*/ 2, 5838 /*bit_valid*/ 0, 5839 /*bit*/ 0); 5840 goto bailout; 5841 } 5842 } 5843 } 5844 5845 /* 5846 * The format command will clear out the "Medium format corrupted" 5847 * status if set by the configuration code. That status is really 5848 * just a way to notify the host that we have lost the media, and 5849 * get them to issue a command that will basically make them think 5850 * they're blowing away the media. 5851 */ 5852 mtx_lock(&lun->lun_lock); 5853 lun->flags &= ~CTL_LUN_INOPERABLE; 5854 mtx_unlock(&lun->lun_lock); 5855 5856 ctsio->scsi_status = SCSI_STATUS_OK; 5857 ctsio->io_hdr.status = CTL_SUCCESS; 5858bailout: 5859 5860 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5861 free(ctsio->kern_data_ptr, M_CTL); 5862 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5863 } 5864 5865 ctl_done((union ctl_io *)ctsio); 5866 return (CTL_RETVAL_COMPLETE); 5867} 5868 5869int 5870ctl_read_buffer(struct ctl_scsiio *ctsio) 5871{ 5872 struct scsi_read_buffer *cdb; 5873 struct ctl_lun *lun; 5874 int buffer_offset, len; 5875 static uint8_t descr[4]; 5876 static uint8_t echo_descr[4] = { 0 }; 5877 5878 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5879 5880 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5881 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5882 5883 if (lun->flags & CTL_LUN_PR_RESERVED) { 5884 uint32_t residx; 5885 5886 /* 5887 * XXX KDM need a lock here. 5888 */ 5889 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5890 if ((lun->res_type == SPR_TYPE_EX_AC 5891 && residx != lun->pr_res_idx) 5892 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5893 || lun->res_type == SPR_TYPE_EX_AC_AR) 5894 && lun->pr_keys[residx] == 0)) { 5895 ctl_set_reservation_conflict(ctsio); 5896 ctl_done((union ctl_io *)ctsio); 5897 return (CTL_RETVAL_COMPLETE); 5898 } 5899 } 5900 5901 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5902 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5903 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5904 ctl_set_invalid_field(ctsio, 5905 /*sks_valid*/ 1, 5906 /*command*/ 1, 5907 /*field*/ 1, 5908 /*bit_valid*/ 1, 5909 /*bit*/ 4); 5910 ctl_done((union ctl_io *)ctsio); 5911 return (CTL_RETVAL_COMPLETE); 5912 } 5913 5914 len = scsi_3btoul(cdb->length); 5915 buffer_offset = scsi_3btoul(cdb->offset); 5916 5917 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5918 ctl_set_invalid_field(ctsio, 5919 /*sks_valid*/ 1, 5920 /*command*/ 1, 5921 /*field*/ 6, 5922 /*bit_valid*/ 0, 5923 /*bit*/ 0); 5924 ctl_done((union ctl_io *)ctsio); 5925 return (CTL_RETVAL_COMPLETE); 5926 } 5927 5928 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5929 descr[0] = 0; 5930 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5931 ctsio->kern_data_ptr = descr; 5932 len = min(len, sizeof(descr)); 5933 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5934 ctsio->kern_data_ptr = echo_descr; 5935 len = min(len, sizeof(echo_descr)); 5936 } else 5937 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5938 ctsio->kern_data_len = len; 5939 ctsio->kern_total_len = len; 5940 ctsio->kern_data_resid = 0; 5941 ctsio->kern_rel_offset = 0; 5942 ctsio->kern_sg_entries = 0; 5943 ctsio->be_move_done = ctl_config_move_done; 5944 ctl_datamove((union ctl_io *)ctsio); 5945 5946 return (CTL_RETVAL_COMPLETE); 5947} 5948 5949int 5950ctl_write_buffer(struct ctl_scsiio *ctsio) 5951{ 5952 struct scsi_write_buffer *cdb; 5953 struct ctl_lun *lun; 5954 int buffer_offset, len; 5955 5956 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5957 5958 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5959 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5960 5961 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5962 ctl_set_invalid_field(ctsio, 5963 /*sks_valid*/ 1, 5964 /*command*/ 1, 5965 /*field*/ 1, 5966 /*bit_valid*/ 1, 5967 /*bit*/ 4); 5968 ctl_done((union ctl_io *)ctsio); 5969 return (CTL_RETVAL_COMPLETE); 5970 } 5971 5972 len = scsi_3btoul(cdb->length); 5973 buffer_offset = scsi_3btoul(cdb->offset); 5974 5975 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5976 ctl_set_invalid_field(ctsio, 5977 /*sks_valid*/ 1, 5978 /*command*/ 1, 5979 /*field*/ 6, 5980 /*bit_valid*/ 0, 5981 /*bit*/ 0); 5982 ctl_done((union ctl_io *)ctsio); 5983 return (CTL_RETVAL_COMPLETE); 5984 } 5985 5986 /* 5987 * If we've got a kernel request that hasn't been malloced yet, 5988 * malloc it and tell the caller the data buffer is here. 5989 */ 5990 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5991 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5992 ctsio->kern_data_len = len; 5993 ctsio->kern_total_len = len; 5994 ctsio->kern_data_resid = 0; 5995 ctsio->kern_rel_offset = 0; 5996 ctsio->kern_sg_entries = 0; 5997 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5998 ctsio->be_move_done = ctl_config_move_done; 5999 ctl_datamove((union ctl_io *)ctsio); 6000 6001 return (CTL_RETVAL_COMPLETE); 6002 } 6003 6004 ctl_done((union ctl_io *)ctsio); 6005 6006 return (CTL_RETVAL_COMPLETE); 6007} 6008 6009int 6010ctl_write_same(struct ctl_scsiio *ctsio) 6011{ 6012 struct ctl_lun *lun; 6013 struct ctl_lba_len_flags *lbalen; 6014 uint64_t lba; 6015 uint32_t num_blocks; 6016 int len, retval; 6017 uint8_t byte2; 6018 6019 retval = CTL_RETVAL_COMPLETE; 6020 6021 CTL_DEBUG_PRINT(("ctl_write_same\n")); 6022 6023 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6024 6025 switch (ctsio->cdb[0]) { 6026 case WRITE_SAME_10: { 6027 struct scsi_write_same_10 *cdb; 6028 6029 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 6030 6031 lba = scsi_4btoul(cdb->addr); 6032 num_blocks = scsi_2btoul(cdb->length); 6033 byte2 = cdb->byte2; 6034 break; 6035 } 6036 case WRITE_SAME_16: { 6037 struct scsi_write_same_16 *cdb; 6038 6039 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 6040 6041 lba = scsi_8btou64(cdb->addr); 6042 num_blocks = scsi_4btoul(cdb->length); 6043 byte2 = cdb->byte2; 6044 break; 6045 } 6046 default: 6047 /* 6048 * We got a command we don't support. This shouldn't 6049 * happen, commands should be filtered out above us. 6050 */ 6051 ctl_set_invalid_opcode(ctsio); 6052 ctl_done((union ctl_io *)ctsio); 6053 6054 return (CTL_RETVAL_COMPLETE); 6055 break; /* NOTREACHED */ 6056 } 6057 6058 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 6059 if ((byte2 & SWS_UNMAP) == 0 && 6060 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 6061 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 6062 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 6063 ctl_done((union ctl_io *)ctsio); 6064 return (CTL_RETVAL_COMPLETE); 6065 } 6066 6067 /* 6068 * The first check is to make sure we're in bounds, the second 6069 * check is to catch wrap-around problems. If the lba + num blocks 6070 * is less than the lba, then we've wrapped around and the block 6071 * range is invalid anyway. 6072 */ 6073 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6074 || ((lba + num_blocks) < lba)) { 6075 ctl_set_lba_out_of_range(ctsio); 6076 ctl_done((union ctl_io *)ctsio); 6077 return (CTL_RETVAL_COMPLETE); 6078 } 6079 6080 /* Zero number of blocks means "to the last logical block" */ 6081 if (num_blocks == 0) { 6082 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6083 ctl_set_invalid_field(ctsio, 6084 /*sks_valid*/ 0, 6085 /*command*/ 1, 6086 /*field*/ 0, 6087 /*bit_valid*/ 0, 6088 /*bit*/ 0); 6089 ctl_done((union ctl_io *)ctsio); 6090 return (CTL_RETVAL_COMPLETE); 6091 } 6092 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6093 } 6094 6095 len = lun->be_lun->blocksize; 6096 6097 /* 6098 * If we've got a kernel request that hasn't been malloced yet, 6099 * malloc it and tell the caller the data buffer is here. 6100 */ 6101 if ((byte2 & SWS_NDOB) == 0 && 6102 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6103 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6104 ctsio->kern_data_len = len; 6105 ctsio->kern_total_len = len; 6106 ctsio->kern_data_resid = 0; 6107 ctsio->kern_rel_offset = 0; 6108 ctsio->kern_sg_entries = 0; 6109 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6110 ctsio->be_move_done = ctl_config_move_done; 6111 ctl_datamove((union ctl_io *)ctsio); 6112 6113 return (CTL_RETVAL_COMPLETE); 6114 } 6115 6116 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6117 lbalen->lba = lba; 6118 lbalen->len = num_blocks; 6119 lbalen->flags = byte2; 6120 retval = lun->backend->config_write((union ctl_io *)ctsio); 6121 6122 return (retval); 6123} 6124 6125int 6126ctl_unmap(struct ctl_scsiio *ctsio) 6127{ 6128 struct ctl_lun *lun; 6129 struct scsi_unmap *cdb; 6130 struct ctl_ptr_len_flags *ptrlen; 6131 struct scsi_unmap_header *hdr; 6132 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6133 uint64_t lba; 6134 uint32_t num_blocks; 6135 int len, retval; 6136 uint8_t byte2; 6137 6138 retval = CTL_RETVAL_COMPLETE; 6139 6140 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6141 6142 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6143 cdb = (struct scsi_unmap *)ctsio->cdb; 6144 6145 len = scsi_2btoul(cdb->length); 6146 byte2 = cdb->byte2; 6147 6148 /* 6149 * If we've got a kernel request that hasn't been malloced yet, 6150 * malloc it and tell the caller the data buffer is here. 6151 */ 6152 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6153 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6154 ctsio->kern_data_len = len; 6155 ctsio->kern_total_len = len; 6156 ctsio->kern_data_resid = 0; 6157 ctsio->kern_rel_offset = 0; 6158 ctsio->kern_sg_entries = 0; 6159 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6160 ctsio->be_move_done = ctl_config_move_done; 6161 ctl_datamove((union ctl_io *)ctsio); 6162 6163 return (CTL_RETVAL_COMPLETE); 6164 } 6165 6166 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6167 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6168 if (len < sizeof (*hdr) || 6169 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6170 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6171 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6172 ctl_set_invalid_field(ctsio, 6173 /*sks_valid*/ 0, 6174 /*command*/ 0, 6175 /*field*/ 0, 6176 /*bit_valid*/ 0, 6177 /*bit*/ 0); 6178 ctl_done((union ctl_io *)ctsio); 6179 return (CTL_RETVAL_COMPLETE); 6180 } 6181 len = scsi_2btoul(hdr->desc_length); 6182 buf = (struct scsi_unmap_desc *)(hdr + 1); 6183 end = buf + len / sizeof(*buf); 6184 6185 endnz = buf; 6186 for (range = buf; range < end; range++) { 6187 lba = scsi_8btou64(range->lba); 6188 num_blocks = scsi_4btoul(range->length); 6189 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6190 || ((lba + num_blocks) < lba)) { 6191 ctl_set_lba_out_of_range(ctsio); 6192 ctl_done((union ctl_io *)ctsio); 6193 return (CTL_RETVAL_COMPLETE); 6194 } 6195 if (num_blocks != 0) 6196 endnz = range + 1; 6197 } 6198 6199 /* 6200 * Block backend can not handle zero last range. 6201 * Filter it out and return if there is nothing left. 6202 */ 6203 len = (uint8_t *)endnz - (uint8_t *)buf; 6204 if (len == 0) { 6205 ctl_set_success(ctsio); 6206 ctl_done((union ctl_io *)ctsio); 6207 return (CTL_RETVAL_COMPLETE); 6208 } 6209 6210 mtx_lock(&lun->lun_lock); 6211 ptrlen = (struct ctl_ptr_len_flags *) 6212 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6213 ptrlen->ptr = (void *)buf; 6214 ptrlen->len = len; 6215 ptrlen->flags = byte2; 6216 ctl_check_blocked(lun); 6217 mtx_unlock(&lun->lun_lock); 6218 6219 retval = lun->backend->config_write((union ctl_io *)ctsio); 6220 return (retval); 6221} 6222 6223/* 6224 * Note that this function currently doesn't actually do anything inside 6225 * CTL to enforce things if the DQue bit is turned on. 6226 * 6227 * Also note that this function can't be used in the default case, because 6228 * the DQue bit isn't set in the changeable mask for the control mode page 6229 * anyway. This is just here as an example for how to implement a page 6230 * handler, and a placeholder in case we want to allow the user to turn 6231 * tagged queueing on and off. 6232 * 6233 * The D_SENSE bit handling is functional, however, and will turn 6234 * descriptor sense on and off for a given LUN. 6235 */ 6236int 6237ctl_control_page_handler(struct ctl_scsiio *ctsio, 6238 struct ctl_page_index *page_index, uint8_t *page_ptr) 6239{ 6240 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6241 struct ctl_lun *lun; 6242 struct ctl_softc *softc; 6243 int set_ua; 6244 uint32_t initidx; 6245 6246 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6247 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6248 set_ua = 0; 6249 6250 user_cp = (struct scsi_control_page *)page_ptr; 6251 current_cp = (struct scsi_control_page *) 6252 (page_index->page_data + (page_index->page_len * 6253 CTL_PAGE_CURRENT)); 6254 saved_cp = (struct scsi_control_page *) 6255 (page_index->page_data + (page_index->page_len * 6256 CTL_PAGE_SAVED)); 6257 6258 softc = control_softc; 6259 6260 mtx_lock(&lun->lun_lock); 6261 if (((current_cp->rlec & SCP_DSENSE) == 0) 6262 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6263 /* 6264 * Descriptor sense is currently turned off and the user 6265 * wants to turn it on. 6266 */ 6267 current_cp->rlec |= SCP_DSENSE; 6268 saved_cp->rlec |= SCP_DSENSE; 6269 lun->flags |= CTL_LUN_SENSE_DESC; 6270 set_ua = 1; 6271 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6272 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6273 /* 6274 * Descriptor sense is currently turned on, and the user 6275 * wants to turn it off. 6276 */ 6277 current_cp->rlec &= ~SCP_DSENSE; 6278 saved_cp->rlec &= ~SCP_DSENSE; 6279 lun->flags &= ~CTL_LUN_SENSE_DESC; 6280 set_ua = 1; 6281 } 6282 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6283 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6284 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6285 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6286 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6287 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6288 set_ua = 1; 6289 } 6290 if ((current_cp->eca_and_aen & SCP_SWP) != 6291 (user_cp->eca_and_aen & SCP_SWP)) { 6292 current_cp->eca_and_aen &= ~SCP_SWP; 6293 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6294 saved_cp->eca_and_aen &= ~SCP_SWP; 6295 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6296 set_ua = 1; 6297 } 6298 if (set_ua != 0) { 6299 int i; 6300 /* 6301 * Let other initiators know that the mode 6302 * parameters for this LUN have changed. 6303 */ 6304 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6305 if (i == initidx) 6306 continue; 6307 6308 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6309 } 6310 } 6311 mtx_unlock(&lun->lun_lock); 6312 6313 return (0); 6314} 6315 6316int 6317ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6318 struct ctl_page_index *page_index, uint8_t *page_ptr) 6319{ 6320 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6321 struct ctl_lun *lun; 6322 int set_ua; 6323 uint32_t initidx; 6324 6325 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6326 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6327 set_ua = 0; 6328 6329 user_cp = (struct scsi_caching_page *)page_ptr; 6330 current_cp = (struct scsi_caching_page *) 6331 (page_index->page_data + (page_index->page_len * 6332 CTL_PAGE_CURRENT)); 6333 saved_cp = (struct scsi_caching_page *) 6334 (page_index->page_data + (page_index->page_len * 6335 CTL_PAGE_SAVED)); 6336 6337 mtx_lock(&lun->lun_lock); 6338 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6339 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6340 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6341 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6342 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6343 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6344 set_ua = 1; 6345 } 6346 if (set_ua != 0) { 6347 int i; 6348 /* 6349 * Let other initiators know that the mode 6350 * parameters for this LUN have changed. 6351 */ 6352 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6353 if (i == initidx) 6354 continue; 6355 6356 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6357 } 6358 } 6359 mtx_unlock(&lun->lun_lock); 6360 6361 return (0); 6362} 6363 6364int 6365ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6366 struct ctl_page_index *page_index, uint8_t *page_ptr) 6367{ 6368 return (0); 6369} 6370 6371int 6372ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6373 struct ctl_page_index *page_index, int pc) 6374{ 6375 struct copan_power_subpage *page; 6376 6377 page = (struct copan_power_subpage *)page_index->page_data + 6378 (page_index->page_len * pc); 6379 6380 switch (pc) { 6381 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6382 /* 6383 * We don't update the changable bits for this page. 6384 */ 6385 break; 6386 case SMS_PAGE_CTRL_CURRENT >> 6: 6387 case SMS_PAGE_CTRL_DEFAULT >> 6: 6388 case SMS_PAGE_CTRL_SAVED >> 6: 6389#ifdef NEEDTOPORT 6390 ctl_update_power_subpage(page); 6391#endif 6392 break; 6393 default: 6394#ifdef NEEDTOPORT 6395 EPRINT(0, "Invalid PC %d!!", pc); 6396#endif 6397 break; 6398 } 6399 return (0); 6400} 6401 6402 6403int 6404ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6405 struct ctl_page_index *page_index, uint8_t *page_ptr) 6406{ 6407 struct copan_aps_subpage *user_sp; 6408 struct copan_aps_subpage *current_sp; 6409 union ctl_modepage_info *modepage_info; 6410 struct ctl_softc *softc; 6411 struct ctl_lun *lun; 6412 int retval; 6413 6414 retval = CTL_RETVAL_COMPLETE; 6415 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6416 (page_index->page_len * CTL_PAGE_CURRENT)); 6417 softc = control_softc; 6418 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6419 6420 user_sp = (struct copan_aps_subpage *)page_ptr; 6421 6422 modepage_info = (union ctl_modepage_info *) 6423 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6424 6425 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6426 modepage_info->header.subpage = page_index->subpage; 6427 modepage_info->aps.lock_active = user_sp->lock_active; 6428 6429 mtx_lock(&softc->ctl_lock); 6430 6431 /* 6432 * If there is a request to lock the LUN and another LUN is locked 6433 * this is an error. If the requested LUN is already locked ignore 6434 * the request. If no LUN is locked attempt to lock it. 6435 * if there is a request to unlock the LUN and the LUN is currently 6436 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6437 * if another LUN is locked or no LUN is locked. 6438 */ 6439 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6440 if (softc->aps_locked_lun == lun->lun) { 6441 /* 6442 * This LUN is already locked, so we're done. 6443 */ 6444 retval = CTL_RETVAL_COMPLETE; 6445 } else if (softc->aps_locked_lun == 0) { 6446 /* 6447 * No one has the lock, pass the request to the 6448 * backend. 6449 */ 6450 retval = lun->backend->config_write( 6451 (union ctl_io *)ctsio); 6452 } else { 6453 /* 6454 * Someone else has the lock, throw out the request. 6455 */ 6456 ctl_set_already_locked(ctsio); 6457 free(ctsio->kern_data_ptr, M_CTL); 6458 ctl_done((union ctl_io *)ctsio); 6459 6460 /* 6461 * Set the return value so that ctl_do_mode_select() 6462 * won't try to complete the command. We already 6463 * completed it here. 6464 */ 6465 retval = CTL_RETVAL_ERROR; 6466 } 6467 } else if (softc->aps_locked_lun == lun->lun) { 6468 /* 6469 * This LUN is locked, so pass the unlock request to the 6470 * backend. 6471 */ 6472 retval = lun->backend->config_write((union ctl_io *)ctsio); 6473 } 6474 mtx_unlock(&softc->ctl_lock); 6475 6476 return (retval); 6477} 6478 6479int 6480ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6481 struct ctl_page_index *page_index, 6482 uint8_t *page_ptr) 6483{ 6484 uint8_t *c; 6485 int i; 6486 6487 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6488 ctl_time_io_secs = 6489 (c[0] << 8) | 6490 (c[1] << 0) | 6491 0; 6492 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6493 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6494 printf("page data:"); 6495 for (i=0; i<8; i++) 6496 printf(" %.2x",page_ptr[i]); 6497 printf("\n"); 6498 return (0); 6499} 6500 6501int 6502ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6503 struct ctl_page_index *page_index, 6504 int pc) 6505{ 6506 struct copan_debugconf_subpage *page; 6507 6508 page = (struct copan_debugconf_subpage *)page_index->page_data + 6509 (page_index->page_len * pc); 6510 6511 switch (pc) { 6512 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6513 case SMS_PAGE_CTRL_DEFAULT >> 6: 6514 case SMS_PAGE_CTRL_SAVED >> 6: 6515 /* 6516 * We don't update the changable or default bits for this page. 6517 */ 6518 break; 6519 case SMS_PAGE_CTRL_CURRENT >> 6: 6520 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6521 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6522 break; 6523 default: 6524#ifdef NEEDTOPORT 6525 EPRINT(0, "Invalid PC %d!!", pc); 6526#endif /* NEEDTOPORT */ 6527 break; 6528 } 6529 return (0); 6530} 6531 6532 6533static int 6534ctl_do_mode_select(union ctl_io *io) 6535{ 6536 struct scsi_mode_page_header *page_header; 6537 struct ctl_page_index *page_index; 6538 struct ctl_scsiio *ctsio; 6539 int control_dev, page_len; 6540 int page_len_offset, page_len_size; 6541 union ctl_modepage_info *modepage_info; 6542 struct ctl_lun *lun; 6543 int *len_left, *len_used; 6544 int retval, i; 6545 6546 ctsio = &io->scsiio; 6547 page_index = NULL; 6548 page_len = 0; 6549 retval = CTL_RETVAL_COMPLETE; 6550 6551 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6552 6553 if (lun->be_lun->lun_type != T_DIRECT) 6554 control_dev = 1; 6555 else 6556 control_dev = 0; 6557 6558 modepage_info = (union ctl_modepage_info *) 6559 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6560 len_left = &modepage_info->header.len_left; 6561 len_used = &modepage_info->header.len_used; 6562 6563do_next_page: 6564 6565 page_header = (struct scsi_mode_page_header *) 6566 (ctsio->kern_data_ptr + *len_used); 6567 6568 if (*len_left == 0) { 6569 free(ctsio->kern_data_ptr, M_CTL); 6570 ctl_set_success(ctsio); 6571 ctl_done((union ctl_io *)ctsio); 6572 return (CTL_RETVAL_COMPLETE); 6573 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6574 6575 free(ctsio->kern_data_ptr, M_CTL); 6576 ctl_set_param_len_error(ctsio); 6577 ctl_done((union ctl_io *)ctsio); 6578 return (CTL_RETVAL_COMPLETE); 6579 6580 } else if ((page_header->page_code & SMPH_SPF) 6581 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6582 6583 free(ctsio->kern_data_ptr, M_CTL); 6584 ctl_set_param_len_error(ctsio); 6585 ctl_done((union ctl_io *)ctsio); 6586 return (CTL_RETVAL_COMPLETE); 6587 } 6588 6589 6590 /* 6591 * XXX KDM should we do something with the block descriptor? 6592 */ 6593 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6594 6595 if ((control_dev != 0) 6596 && (lun->mode_pages.index[i].page_flags & 6597 CTL_PAGE_FLAG_DISK_ONLY)) 6598 continue; 6599 6600 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6601 (page_header->page_code & SMPH_PC_MASK)) 6602 continue; 6603 6604 /* 6605 * If neither page has a subpage code, then we've got a 6606 * match. 6607 */ 6608 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6609 && ((page_header->page_code & SMPH_SPF) == 0)) { 6610 page_index = &lun->mode_pages.index[i]; 6611 page_len = page_header->page_length; 6612 break; 6613 } 6614 6615 /* 6616 * If both pages have subpages, then the subpage numbers 6617 * have to match. 6618 */ 6619 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6620 && (page_header->page_code & SMPH_SPF)) { 6621 struct scsi_mode_page_header_sp *sph; 6622 6623 sph = (struct scsi_mode_page_header_sp *)page_header; 6624 6625 if (lun->mode_pages.index[i].subpage == 6626 sph->subpage) { 6627 page_index = &lun->mode_pages.index[i]; 6628 page_len = scsi_2btoul(sph->page_length); 6629 break; 6630 } 6631 } 6632 } 6633 6634 /* 6635 * If we couldn't find the page, or if we don't have a mode select 6636 * handler for it, send back an error to the user. 6637 */ 6638 if ((page_index == NULL) 6639 || (page_index->select_handler == NULL)) { 6640 ctl_set_invalid_field(ctsio, 6641 /*sks_valid*/ 1, 6642 /*command*/ 0, 6643 /*field*/ *len_used, 6644 /*bit_valid*/ 0, 6645 /*bit*/ 0); 6646 free(ctsio->kern_data_ptr, M_CTL); 6647 ctl_done((union ctl_io *)ctsio); 6648 return (CTL_RETVAL_COMPLETE); 6649 } 6650 6651 if (page_index->page_code & SMPH_SPF) { 6652 page_len_offset = 2; 6653 page_len_size = 2; 6654 } else { 6655 page_len_size = 1; 6656 page_len_offset = 1; 6657 } 6658 6659 /* 6660 * If the length the initiator gives us isn't the one we specify in 6661 * the mode page header, or if they didn't specify enough data in 6662 * the CDB to avoid truncating this page, kick out the request. 6663 */ 6664 if ((page_len != (page_index->page_len - page_len_offset - 6665 page_len_size)) 6666 || (*len_left < page_index->page_len)) { 6667 6668 6669 ctl_set_invalid_field(ctsio, 6670 /*sks_valid*/ 1, 6671 /*command*/ 0, 6672 /*field*/ *len_used + page_len_offset, 6673 /*bit_valid*/ 0, 6674 /*bit*/ 0); 6675 free(ctsio->kern_data_ptr, M_CTL); 6676 ctl_done((union ctl_io *)ctsio); 6677 return (CTL_RETVAL_COMPLETE); 6678 } 6679 6680 /* 6681 * Run through the mode page, checking to make sure that the bits 6682 * the user changed are actually legal for him to change. 6683 */ 6684 for (i = 0; i < page_index->page_len; i++) { 6685 uint8_t *user_byte, *change_mask, *current_byte; 6686 int bad_bit; 6687 int j; 6688 6689 user_byte = (uint8_t *)page_header + i; 6690 change_mask = page_index->page_data + 6691 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6692 current_byte = page_index->page_data + 6693 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6694 6695 /* 6696 * Check to see whether the user set any bits in this byte 6697 * that he is not allowed to set. 6698 */ 6699 if ((*user_byte & ~(*change_mask)) == 6700 (*current_byte & ~(*change_mask))) 6701 continue; 6702 6703 /* 6704 * Go through bit by bit to determine which one is illegal. 6705 */ 6706 bad_bit = 0; 6707 for (j = 7; j >= 0; j--) { 6708 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6709 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6710 bad_bit = i; 6711 break; 6712 } 6713 } 6714 ctl_set_invalid_field(ctsio, 6715 /*sks_valid*/ 1, 6716 /*command*/ 0, 6717 /*field*/ *len_used + i, 6718 /*bit_valid*/ 1, 6719 /*bit*/ bad_bit); 6720 free(ctsio->kern_data_ptr, M_CTL); 6721 ctl_done((union ctl_io *)ctsio); 6722 return (CTL_RETVAL_COMPLETE); 6723 } 6724 6725 /* 6726 * Decrement these before we call the page handler, since we may 6727 * end up getting called back one way or another before the handler 6728 * returns to this context. 6729 */ 6730 *len_left -= page_index->page_len; 6731 *len_used += page_index->page_len; 6732 6733 retval = page_index->select_handler(ctsio, page_index, 6734 (uint8_t *)page_header); 6735 6736 /* 6737 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6738 * wait until this queued command completes to finish processing 6739 * the mode page. If it returns anything other than 6740 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6741 * already set the sense information, freed the data pointer, and 6742 * completed the io for us. 6743 */ 6744 if (retval != CTL_RETVAL_COMPLETE) 6745 goto bailout_no_done; 6746 6747 /* 6748 * If the initiator sent us more than one page, parse the next one. 6749 */ 6750 if (*len_left > 0) 6751 goto do_next_page; 6752 6753 ctl_set_success(ctsio); 6754 free(ctsio->kern_data_ptr, M_CTL); 6755 ctl_done((union ctl_io *)ctsio); 6756 6757bailout_no_done: 6758 6759 return (CTL_RETVAL_COMPLETE); 6760 6761} 6762 6763int 6764ctl_mode_select(struct ctl_scsiio *ctsio) 6765{ 6766 int param_len, pf, sp; 6767 int header_size, bd_len; 6768 int len_left, len_used; 6769 struct ctl_page_index *page_index; 6770 struct ctl_lun *lun; 6771 int control_dev, page_len; 6772 union ctl_modepage_info *modepage_info; 6773 int retval; 6774 6775 pf = 0; 6776 sp = 0; 6777 page_len = 0; 6778 len_used = 0; 6779 len_left = 0; 6780 retval = 0; 6781 bd_len = 0; 6782 page_index = NULL; 6783 6784 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6785 6786 if (lun->be_lun->lun_type != T_DIRECT) 6787 control_dev = 1; 6788 else 6789 control_dev = 0; 6790 6791 switch (ctsio->cdb[0]) { 6792 case MODE_SELECT_6: { 6793 struct scsi_mode_select_6 *cdb; 6794 6795 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6796 6797 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6798 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6799 6800 param_len = cdb->length; 6801 header_size = sizeof(struct scsi_mode_header_6); 6802 break; 6803 } 6804 case MODE_SELECT_10: { 6805 struct scsi_mode_select_10 *cdb; 6806 6807 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6808 6809 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6810 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6811 6812 param_len = scsi_2btoul(cdb->length); 6813 header_size = sizeof(struct scsi_mode_header_10); 6814 break; 6815 } 6816 default: 6817 ctl_set_invalid_opcode(ctsio); 6818 ctl_done((union ctl_io *)ctsio); 6819 return (CTL_RETVAL_COMPLETE); 6820 break; /* NOTREACHED */ 6821 } 6822 6823 /* 6824 * From SPC-3: 6825 * "A parameter list length of zero indicates that the Data-Out Buffer 6826 * shall be empty. This condition shall not be considered as an error." 6827 */ 6828 if (param_len == 0) { 6829 ctl_set_success(ctsio); 6830 ctl_done((union ctl_io *)ctsio); 6831 return (CTL_RETVAL_COMPLETE); 6832 } 6833 6834 /* 6835 * Since we'll hit this the first time through, prior to 6836 * allocation, we don't need to free a data buffer here. 6837 */ 6838 if (param_len < header_size) { 6839 ctl_set_param_len_error(ctsio); 6840 ctl_done((union ctl_io *)ctsio); 6841 return (CTL_RETVAL_COMPLETE); 6842 } 6843 6844 /* 6845 * Allocate the data buffer and grab the user's data. In theory, 6846 * we shouldn't have to sanity check the parameter list length here 6847 * because the maximum size is 64K. We should be able to malloc 6848 * that much without too many problems. 6849 */ 6850 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6851 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6852 ctsio->kern_data_len = param_len; 6853 ctsio->kern_total_len = param_len; 6854 ctsio->kern_data_resid = 0; 6855 ctsio->kern_rel_offset = 0; 6856 ctsio->kern_sg_entries = 0; 6857 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6858 ctsio->be_move_done = ctl_config_move_done; 6859 ctl_datamove((union ctl_io *)ctsio); 6860 6861 return (CTL_RETVAL_COMPLETE); 6862 } 6863 6864 switch (ctsio->cdb[0]) { 6865 case MODE_SELECT_6: { 6866 struct scsi_mode_header_6 *mh6; 6867 6868 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6869 bd_len = mh6->blk_desc_len; 6870 break; 6871 } 6872 case MODE_SELECT_10: { 6873 struct scsi_mode_header_10 *mh10; 6874 6875 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6876 bd_len = scsi_2btoul(mh10->blk_desc_len); 6877 break; 6878 } 6879 default: 6880 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6881 break; 6882 } 6883 6884 if (param_len < (header_size + bd_len)) { 6885 free(ctsio->kern_data_ptr, M_CTL); 6886 ctl_set_param_len_error(ctsio); 6887 ctl_done((union ctl_io *)ctsio); 6888 return (CTL_RETVAL_COMPLETE); 6889 } 6890 6891 /* 6892 * Set the IO_CONT flag, so that if this I/O gets passed to 6893 * ctl_config_write_done(), it'll get passed back to 6894 * ctl_do_mode_select() for further processing, or completion if 6895 * we're all done. 6896 */ 6897 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6898 ctsio->io_cont = ctl_do_mode_select; 6899 6900 modepage_info = (union ctl_modepage_info *) 6901 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6902 6903 memset(modepage_info, 0, sizeof(*modepage_info)); 6904 6905 len_left = param_len - header_size - bd_len; 6906 len_used = header_size + bd_len; 6907 6908 modepage_info->header.len_left = len_left; 6909 modepage_info->header.len_used = len_used; 6910 6911 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6912} 6913 6914int 6915ctl_mode_sense(struct ctl_scsiio *ctsio) 6916{ 6917 struct ctl_lun *lun; 6918 int pc, page_code, dbd, llba, subpage; 6919 int alloc_len, page_len, header_len, total_len; 6920 struct scsi_mode_block_descr *block_desc; 6921 struct ctl_page_index *page_index; 6922 int control_dev; 6923 6924 dbd = 0; 6925 llba = 0; 6926 block_desc = NULL; 6927 page_index = NULL; 6928 6929 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6930 6931 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6932 6933 if (lun->be_lun->lun_type != T_DIRECT) 6934 control_dev = 1; 6935 else 6936 control_dev = 0; 6937 6938 if (lun->flags & CTL_LUN_PR_RESERVED) { 6939 uint32_t residx; 6940 6941 /* 6942 * XXX KDM need a lock here. 6943 */ 6944 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6945 if ((lun->res_type == SPR_TYPE_EX_AC 6946 && residx != lun->pr_res_idx) 6947 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6948 || lun->res_type == SPR_TYPE_EX_AC_AR) 6949 && lun->pr_keys[residx] == 0)) { 6950 ctl_set_reservation_conflict(ctsio); 6951 ctl_done((union ctl_io *)ctsio); 6952 return (CTL_RETVAL_COMPLETE); 6953 } 6954 } 6955 6956 switch (ctsio->cdb[0]) { 6957 case MODE_SENSE_6: { 6958 struct scsi_mode_sense_6 *cdb; 6959 6960 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6961 6962 header_len = sizeof(struct scsi_mode_hdr_6); 6963 if (cdb->byte2 & SMS_DBD) 6964 dbd = 1; 6965 else 6966 header_len += sizeof(struct scsi_mode_block_descr); 6967 6968 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6969 page_code = cdb->page & SMS_PAGE_CODE; 6970 subpage = cdb->subpage; 6971 alloc_len = cdb->length; 6972 break; 6973 } 6974 case MODE_SENSE_10: { 6975 struct scsi_mode_sense_10 *cdb; 6976 6977 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6978 6979 header_len = sizeof(struct scsi_mode_hdr_10); 6980 6981 if (cdb->byte2 & SMS_DBD) 6982 dbd = 1; 6983 else 6984 header_len += sizeof(struct scsi_mode_block_descr); 6985 if (cdb->byte2 & SMS10_LLBAA) 6986 llba = 1; 6987 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6988 page_code = cdb->page & SMS_PAGE_CODE; 6989 subpage = cdb->subpage; 6990 alloc_len = scsi_2btoul(cdb->length); 6991 break; 6992 } 6993 default: 6994 ctl_set_invalid_opcode(ctsio); 6995 ctl_done((union ctl_io *)ctsio); 6996 return (CTL_RETVAL_COMPLETE); 6997 break; /* NOTREACHED */ 6998 } 6999 7000 /* 7001 * We have to make a first pass through to calculate the size of 7002 * the pages that match the user's query. Then we allocate enough 7003 * memory to hold it, and actually copy the data into the buffer. 7004 */ 7005 switch (page_code) { 7006 case SMS_ALL_PAGES_PAGE: { 7007 int i; 7008 7009 page_len = 0; 7010 7011 /* 7012 * At the moment, values other than 0 and 0xff here are 7013 * reserved according to SPC-3. 7014 */ 7015 if ((subpage != SMS_SUBPAGE_PAGE_0) 7016 && (subpage != SMS_SUBPAGE_ALL)) { 7017 ctl_set_invalid_field(ctsio, 7018 /*sks_valid*/ 1, 7019 /*command*/ 1, 7020 /*field*/ 3, 7021 /*bit_valid*/ 0, 7022 /*bit*/ 0); 7023 ctl_done((union ctl_io *)ctsio); 7024 return (CTL_RETVAL_COMPLETE); 7025 } 7026 7027 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7028 if ((control_dev != 0) 7029 && (lun->mode_pages.index[i].page_flags & 7030 CTL_PAGE_FLAG_DISK_ONLY)) 7031 continue; 7032 7033 /* 7034 * We don't use this subpage if the user didn't 7035 * request all subpages. 7036 */ 7037 if ((lun->mode_pages.index[i].subpage != 0) 7038 && (subpage == SMS_SUBPAGE_PAGE_0)) 7039 continue; 7040 7041#if 0 7042 printf("found page %#x len %d\n", 7043 lun->mode_pages.index[i].page_code & 7044 SMPH_PC_MASK, 7045 lun->mode_pages.index[i].page_len); 7046#endif 7047 page_len += lun->mode_pages.index[i].page_len; 7048 } 7049 break; 7050 } 7051 default: { 7052 int i; 7053 7054 page_len = 0; 7055 7056 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7057 /* Look for the right page code */ 7058 if ((lun->mode_pages.index[i].page_code & 7059 SMPH_PC_MASK) != page_code) 7060 continue; 7061 7062 /* Look for the right subpage or the subpage wildcard*/ 7063 if ((lun->mode_pages.index[i].subpage != subpage) 7064 && (subpage != SMS_SUBPAGE_ALL)) 7065 continue; 7066 7067 /* Make sure the page is supported for this dev type */ 7068 if ((control_dev != 0) 7069 && (lun->mode_pages.index[i].page_flags & 7070 CTL_PAGE_FLAG_DISK_ONLY)) 7071 continue; 7072 7073#if 0 7074 printf("found page %#x len %d\n", 7075 lun->mode_pages.index[i].page_code & 7076 SMPH_PC_MASK, 7077 lun->mode_pages.index[i].page_len); 7078#endif 7079 7080 page_len += lun->mode_pages.index[i].page_len; 7081 } 7082 7083 if (page_len == 0) { 7084 ctl_set_invalid_field(ctsio, 7085 /*sks_valid*/ 1, 7086 /*command*/ 1, 7087 /*field*/ 2, 7088 /*bit_valid*/ 1, 7089 /*bit*/ 5); 7090 ctl_done((union ctl_io *)ctsio); 7091 return (CTL_RETVAL_COMPLETE); 7092 } 7093 break; 7094 } 7095 } 7096 7097 total_len = header_len + page_len; 7098#if 0 7099 printf("header_len = %d, page_len = %d, total_len = %d\n", 7100 header_len, page_len, total_len); 7101#endif 7102 7103 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7104 ctsio->kern_sg_entries = 0; 7105 ctsio->kern_data_resid = 0; 7106 ctsio->kern_rel_offset = 0; 7107 if (total_len < alloc_len) { 7108 ctsio->residual = alloc_len - total_len; 7109 ctsio->kern_data_len = total_len; 7110 ctsio->kern_total_len = total_len; 7111 } else { 7112 ctsio->residual = 0; 7113 ctsio->kern_data_len = alloc_len; 7114 ctsio->kern_total_len = alloc_len; 7115 } 7116 7117 switch (ctsio->cdb[0]) { 7118 case MODE_SENSE_6: { 7119 struct scsi_mode_hdr_6 *header; 7120 7121 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7122 7123 header->datalen = ctl_min(total_len - 1, 254); 7124 if (control_dev == 0) { 7125 header->dev_specific = 0x10; /* DPOFUA */ 7126 if ((lun->flags & CTL_LUN_READONLY) || 7127 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7128 .eca_and_aen & SCP_SWP) != 0) 7129 header->dev_specific |= 0x80; /* WP */ 7130 } 7131 if (dbd) 7132 header->block_descr_len = 0; 7133 else 7134 header->block_descr_len = 7135 sizeof(struct scsi_mode_block_descr); 7136 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7137 break; 7138 } 7139 case MODE_SENSE_10: { 7140 struct scsi_mode_hdr_10 *header; 7141 int datalen; 7142 7143 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7144 7145 datalen = ctl_min(total_len - 2, 65533); 7146 scsi_ulto2b(datalen, header->datalen); 7147 if (control_dev == 0) { 7148 header->dev_specific = 0x10; /* DPOFUA */ 7149 if ((lun->flags & CTL_LUN_READONLY) || 7150 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7151 .eca_and_aen & SCP_SWP) != 0) 7152 header->dev_specific |= 0x80; /* WP */ 7153 } 7154 if (dbd) 7155 scsi_ulto2b(0, header->block_descr_len); 7156 else 7157 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7158 header->block_descr_len); 7159 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7160 break; 7161 } 7162 default: 7163 panic("invalid CDB type %#x", ctsio->cdb[0]); 7164 break; /* NOTREACHED */ 7165 } 7166 7167 /* 7168 * If we've got a disk, use its blocksize in the block 7169 * descriptor. Otherwise, just set it to 0. 7170 */ 7171 if (dbd == 0) { 7172 if (control_dev == 0) 7173 scsi_ulto3b(lun->be_lun->blocksize, 7174 block_desc->block_len); 7175 else 7176 scsi_ulto3b(0, block_desc->block_len); 7177 } 7178 7179 switch (page_code) { 7180 case SMS_ALL_PAGES_PAGE: { 7181 int i, data_used; 7182 7183 data_used = header_len; 7184 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7185 struct ctl_page_index *page_index; 7186 7187 page_index = &lun->mode_pages.index[i]; 7188 7189 if ((control_dev != 0) 7190 && (page_index->page_flags & 7191 CTL_PAGE_FLAG_DISK_ONLY)) 7192 continue; 7193 7194 /* 7195 * We don't use this subpage if the user didn't 7196 * request all subpages. We already checked (above) 7197 * to make sure the user only specified a subpage 7198 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7199 */ 7200 if ((page_index->subpage != 0) 7201 && (subpage == SMS_SUBPAGE_PAGE_0)) 7202 continue; 7203 7204 /* 7205 * Call the handler, if it exists, to update the 7206 * page to the latest values. 7207 */ 7208 if (page_index->sense_handler != NULL) 7209 page_index->sense_handler(ctsio, page_index,pc); 7210 7211 memcpy(ctsio->kern_data_ptr + data_used, 7212 page_index->page_data + 7213 (page_index->page_len * pc), 7214 page_index->page_len); 7215 data_used += page_index->page_len; 7216 } 7217 break; 7218 } 7219 default: { 7220 int i, data_used; 7221 7222 data_used = header_len; 7223 7224 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7225 struct ctl_page_index *page_index; 7226 7227 page_index = &lun->mode_pages.index[i]; 7228 7229 /* Look for the right page code */ 7230 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7231 continue; 7232 7233 /* Look for the right subpage or the subpage wildcard*/ 7234 if ((page_index->subpage != subpage) 7235 && (subpage != SMS_SUBPAGE_ALL)) 7236 continue; 7237 7238 /* Make sure the page is supported for this dev type */ 7239 if ((control_dev != 0) 7240 && (page_index->page_flags & 7241 CTL_PAGE_FLAG_DISK_ONLY)) 7242 continue; 7243 7244 /* 7245 * Call the handler, if it exists, to update the 7246 * page to the latest values. 7247 */ 7248 if (page_index->sense_handler != NULL) 7249 page_index->sense_handler(ctsio, page_index,pc); 7250 7251 memcpy(ctsio->kern_data_ptr + data_used, 7252 page_index->page_data + 7253 (page_index->page_len * pc), 7254 page_index->page_len); 7255 data_used += page_index->page_len; 7256 } 7257 break; 7258 } 7259 } 7260 7261 ctsio->scsi_status = SCSI_STATUS_OK; 7262 7263 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7264 ctsio->be_move_done = ctl_config_move_done; 7265 ctl_datamove((union ctl_io *)ctsio); 7266 7267 return (CTL_RETVAL_COMPLETE); 7268} 7269 7270int 7271ctl_read_capacity(struct ctl_scsiio *ctsio) 7272{ 7273 struct scsi_read_capacity *cdb; 7274 struct scsi_read_capacity_data *data; 7275 struct ctl_lun *lun; 7276 uint32_t lba; 7277 7278 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7279 7280 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7281 7282 lba = scsi_4btoul(cdb->addr); 7283 if (((cdb->pmi & SRC_PMI) == 0) 7284 && (lba != 0)) { 7285 ctl_set_invalid_field(/*ctsio*/ ctsio, 7286 /*sks_valid*/ 1, 7287 /*command*/ 1, 7288 /*field*/ 2, 7289 /*bit_valid*/ 0, 7290 /*bit*/ 0); 7291 ctl_done((union ctl_io *)ctsio); 7292 return (CTL_RETVAL_COMPLETE); 7293 } 7294 7295 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7296 7297 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7298 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7299 ctsio->residual = 0; 7300 ctsio->kern_data_len = sizeof(*data); 7301 ctsio->kern_total_len = sizeof(*data); 7302 ctsio->kern_data_resid = 0; 7303 ctsio->kern_rel_offset = 0; 7304 ctsio->kern_sg_entries = 0; 7305 7306 /* 7307 * If the maximum LBA is greater than 0xfffffffe, the user must 7308 * issue a SERVICE ACTION IN (16) command, with the read capacity 7309 * serivce action set. 7310 */ 7311 if (lun->be_lun->maxlba > 0xfffffffe) 7312 scsi_ulto4b(0xffffffff, data->addr); 7313 else 7314 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7315 7316 /* 7317 * XXX KDM this may not be 512 bytes... 7318 */ 7319 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7320 7321 ctsio->scsi_status = SCSI_STATUS_OK; 7322 7323 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7324 ctsio->be_move_done = ctl_config_move_done; 7325 ctl_datamove((union ctl_io *)ctsio); 7326 7327 return (CTL_RETVAL_COMPLETE); 7328} 7329 7330int 7331ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7332{ 7333 struct scsi_read_capacity_16 *cdb; 7334 struct scsi_read_capacity_data_long *data; 7335 struct ctl_lun *lun; 7336 uint64_t lba; 7337 uint32_t alloc_len; 7338 7339 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7340 7341 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7342 7343 alloc_len = scsi_4btoul(cdb->alloc_len); 7344 lba = scsi_8btou64(cdb->addr); 7345 7346 if ((cdb->reladr & SRC16_PMI) 7347 && (lba != 0)) { 7348 ctl_set_invalid_field(/*ctsio*/ ctsio, 7349 /*sks_valid*/ 1, 7350 /*command*/ 1, 7351 /*field*/ 2, 7352 /*bit_valid*/ 0, 7353 /*bit*/ 0); 7354 ctl_done((union ctl_io *)ctsio); 7355 return (CTL_RETVAL_COMPLETE); 7356 } 7357 7358 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7359 7360 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7361 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7362 7363 if (sizeof(*data) < alloc_len) { 7364 ctsio->residual = alloc_len - sizeof(*data); 7365 ctsio->kern_data_len = sizeof(*data); 7366 ctsio->kern_total_len = sizeof(*data); 7367 } else { 7368 ctsio->residual = 0; 7369 ctsio->kern_data_len = alloc_len; 7370 ctsio->kern_total_len = alloc_len; 7371 } 7372 ctsio->kern_data_resid = 0; 7373 ctsio->kern_rel_offset = 0; 7374 ctsio->kern_sg_entries = 0; 7375 7376 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7377 /* XXX KDM this may not be 512 bytes... */ 7378 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7379 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7380 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7381 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7382 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7383 7384 ctsio->scsi_status = SCSI_STATUS_OK; 7385 7386 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7387 ctsio->be_move_done = ctl_config_move_done; 7388 ctl_datamove((union ctl_io *)ctsio); 7389 7390 return (CTL_RETVAL_COMPLETE); 7391} 7392 7393int 7394ctl_read_defect(struct ctl_scsiio *ctsio) 7395{ 7396 struct scsi_read_defect_data_10 *ccb10; 7397 struct scsi_read_defect_data_12 *ccb12; 7398 struct scsi_read_defect_data_hdr_10 *data10; 7399 struct scsi_read_defect_data_hdr_12 *data12; 7400 struct ctl_lun *lun; 7401 uint32_t alloc_len, data_len; 7402 uint8_t format; 7403 7404 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7405 7406 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7407 if (lun->flags & CTL_LUN_PR_RESERVED) { 7408 uint32_t residx; 7409 7410 /* 7411 * XXX KDM need a lock here. 7412 */ 7413 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 7414 if ((lun->res_type == SPR_TYPE_EX_AC 7415 && residx != lun->pr_res_idx) 7416 || ((lun->res_type == SPR_TYPE_EX_AC_RO 7417 || lun->res_type == SPR_TYPE_EX_AC_AR) 7418 && lun->pr_keys[residx] == 0)) { 7419 ctl_set_reservation_conflict(ctsio); 7420 ctl_done((union ctl_io *)ctsio); 7421 return (CTL_RETVAL_COMPLETE); 7422 } 7423 } 7424 7425 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7426 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7427 format = ccb10->format; 7428 alloc_len = scsi_2btoul(ccb10->alloc_length); 7429 data_len = sizeof(*data10); 7430 } else { 7431 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7432 format = ccb12->format; 7433 alloc_len = scsi_4btoul(ccb12->alloc_length); 7434 data_len = sizeof(*data12); 7435 } 7436 if (alloc_len == 0) { 7437 ctl_set_success(ctsio); 7438 ctl_done((union ctl_io *)ctsio); 7439 return (CTL_RETVAL_COMPLETE); 7440 } 7441 7442 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7443 if (data_len < alloc_len) { 7444 ctsio->residual = alloc_len - data_len; 7445 ctsio->kern_data_len = data_len; 7446 ctsio->kern_total_len = data_len; 7447 } else { 7448 ctsio->residual = 0; 7449 ctsio->kern_data_len = alloc_len; 7450 ctsio->kern_total_len = alloc_len; 7451 } 7452 ctsio->kern_data_resid = 0; 7453 ctsio->kern_rel_offset = 0; 7454 ctsio->kern_sg_entries = 0; 7455 7456 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7457 data10 = (struct scsi_read_defect_data_hdr_10 *) 7458 ctsio->kern_data_ptr; 7459 data10->format = format; 7460 scsi_ulto2b(0, data10->length); 7461 } else { 7462 data12 = (struct scsi_read_defect_data_hdr_12 *) 7463 ctsio->kern_data_ptr; 7464 data12->format = format; 7465 scsi_ulto2b(0, data12->generation); 7466 scsi_ulto4b(0, data12->length); 7467 } 7468 7469 ctsio->scsi_status = SCSI_STATUS_OK; 7470 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7471 ctsio->be_move_done = ctl_config_move_done; 7472 ctl_datamove((union ctl_io *)ctsio); 7473 return (CTL_RETVAL_COMPLETE); 7474} 7475 7476int 7477ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7478{ 7479 struct scsi_maintenance_in *cdb; 7480 int retval; 7481 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7482 int num_target_port_groups, num_target_ports, single; 7483 struct ctl_lun *lun; 7484 struct ctl_softc *softc; 7485 struct ctl_port *port; 7486 struct scsi_target_group_data *rtg_ptr; 7487 struct scsi_target_group_data_extended *rtg_ext_ptr; 7488 struct scsi_target_port_group_descriptor *tpg_desc; 7489 7490 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7491 7492 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7493 softc = control_softc; 7494 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7495 7496 retval = CTL_RETVAL_COMPLETE; 7497 7498 switch (cdb->byte2 & STG_PDF_MASK) { 7499 case STG_PDF_LENGTH: 7500 ext = 0; 7501 break; 7502 case STG_PDF_EXTENDED: 7503 ext = 1; 7504 break; 7505 default: 7506 ctl_set_invalid_field(/*ctsio*/ ctsio, 7507 /*sks_valid*/ 1, 7508 /*command*/ 1, 7509 /*field*/ 2, 7510 /*bit_valid*/ 1, 7511 /*bit*/ 5); 7512 ctl_done((union ctl_io *)ctsio); 7513 return(retval); 7514 } 7515 7516 single = ctl_is_single; 7517 if (single) 7518 num_target_port_groups = 1; 7519 else 7520 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7521 num_target_ports = 0; 7522 mtx_lock(&softc->ctl_lock); 7523 STAILQ_FOREACH(port, &softc->port_list, links) { 7524 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7525 continue; 7526 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7527 continue; 7528 num_target_ports++; 7529 } 7530 mtx_unlock(&softc->ctl_lock); 7531 7532 if (ext) 7533 total_len = sizeof(struct scsi_target_group_data_extended); 7534 else 7535 total_len = sizeof(struct scsi_target_group_data); 7536 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7537 num_target_port_groups + 7538 sizeof(struct scsi_target_port_descriptor) * 7539 num_target_ports * num_target_port_groups; 7540 7541 alloc_len = scsi_4btoul(cdb->length); 7542 7543 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7544 7545 ctsio->kern_sg_entries = 0; 7546 7547 if (total_len < alloc_len) { 7548 ctsio->residual = alloc_len - total_len; 7549 ctsio->kern_data_len = total_len; 7550 ctsio->kern_total_len = total_len; 7551 } else { 7552 ctsio->residual = 0; 7553 ctsio->kern_data_len = alloc_len; 7554 ctsio->kern_total_len = alloc_len; 7555 } 7556 ctsio->kern_data_resid = 0; 7557 ctsio->kern_rel_offset = 0; 7558 7559 if (ext) { 7560 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7561 ctsio->kern_data_ptr; 7562 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7563 rtg_ext_ptr->format_type = 0x10; 7564 rtg_ext_ptr->implicit_transition_time = 0; 7565 tpg_desc = &rtg_ext_ptr->groups[0]; 7566 } else { 7567 rtg_ptr = (struct scsi_target_group_data *) 7568 ctsio->kern_data_ptr; 7569 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7570 tpg_desc = &rtg_ptr->groups[0]; 7571 } 7572 7573 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7574 mtx_lock(&softc->ctl_lock); 7575 for (g = 0; g < num_target_port_groups; g++) { 7576 if (g == pg) 7577 tpg_desc->pref_state = TPG_PRIMARY | 7578 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7579 else 7580 tpg_desc->pref_state = 7581 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7582 tpg_desc->support = TPG_AO_SUP; 7583 if (!single) 7584 tpg_desc->support |= TPG_AN_SUP; 7585 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7586 tpg_desc->status = TPG_IMPLICIT; 7587 pc = 0; 7588 STAILQ_FOREACH(port, &softc->port_list, links) { 7589 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7590 continue; 7591 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7592 CTL_MAX_LUNS) 7593 continue; 7594 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7595 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7596 relative_target_port_identifier); 7597 pc++; 7598 } 7599 tpg_desc->target_port_count = pc; 7600 tpg_desc = (struct scsi_target_port_group_descriptor *) 7601 &tpg_desc->descriptors[pc]; 7602 } 7603 mtx_unlock(&softc->ctl_lock); 7604 7605 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7606 ctsio->be_move_done = ctl_config_move_done; 7607 7608 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7609 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7610 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7611 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7612 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7613 7614 ctl_datamove((union ctl_io *)ctsio); 7615 return(retval); 7616} 7617 7618int 7619ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7620{ 7621 struct ctl_lun *lun; 7622 struct scsi_report_supported_opcodes *cdb; 7623 const struct ctl_cmd_entry *entry, *sentry; 7624 struct scsi_report_supported_opcodes_all *all; 7625 struct scsi_report_supported_opcodes_descr *descr; 7626 struct scsi_report_supported_opcodes_one *one; 7627 int retval; 7628 int alloc_len, total_len; 7629 int opcode, service_action, i, j, num; 7630 7631 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7632 7633 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7634 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7635 7636 retval = CTL_RETVAL_COMPLETE; 7637 7638 opcode = cdb->requested_opcode; 7639 service_action = scsi_2btoul(cdb->requested_service_action); 7640 switch (cdb->options & RSO_OPTIONS_MASK) { 7641 case RSO_OPTIONS_ALL: 7642 num = 0; 7643 for (i = 0; i < 256; i++) { 7644 entry = &ctl_cmd_table[i]; 7645 if (entry->flags & CTL_CMD_FLAG_SA5) { 7646 for (j = 0; j < 32; j++) { 7647 sentry = &((const struct ctl_cmd_entry *) 7648 entry->execute)[j]; 7649 if (ctl_cmd_applicable( 7650 lun->be_lun->lun_type, sentry)) 7651 num++; 7652 } 7653 } else { 7654 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7655 entry)) 7656 num++; 7657 } 7658 } 7659 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7660 num * sizeof(struct scsi_report_supported_opcodes_descr); 7661 break; 7662 case RSO_OPTIONS_OC: 7663 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7664 ctl_set_invalid_field(/*ctsio*/ ctsio, 7665 /*sks_valid*/ 1, 7666 /*command*/ 1, 7667 /*field*/ 2, 7668 /*bit_valid*/ 1, 7669 /*bit*/ 2); 7670 ctl_done((union ctl_io *)ctsio); 7671 return (CTL_RETVAL_COMPLETE); 7672 } 7673 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7674 break; 7675 case RSO_OPTIONS_OC_SA: 7676 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7677 service_action >= 32) { 7678 ctl_set_invalid_field(/*ctsio*/ ctsio, 7679 /*sks_valid*/ 1, 7680 /*command*/ 1, 7681 /*field*/ 2, 7682 /*bit_valid*/ 1, 7683 /*bit*/ 2); 7684 ctl_done((union ctl_io *)ctsio); 7685 return (CTL_RETVAL_COMPLETE); 7686 } 7687 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7688 break; 7689 default: 7690 ctl_set_invalid_field(/*ctsio*/ ctsio, 7691 /*sks_valid*/ 1, 7692 /*command*/ 1, 7693 /*field*/ 2, 7694 /*bit_valid*/ 1, 7695 /*bit*/ 2); 7696 ctl_done((union ctl_io *)ctsio); 7697 return (CTL_RETVAL_COMPLETE); 7698 } 7699 7700 alloc_len = scsi_4btoul(cdb->length); 7701 7702 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7703 7704 ctsio->kern_sg_entries = 0; 7705 7706 if (total_len < alloc_len) { 7707 ctsio->residual = alloc_len - total_len; 7708 ctsio->kern_data_len = total_len; 7709 ctsio->kern_total_len = total_len; 7710 } else { 7711 ctsio->residual = 0; 7712 ctsio->kern_data_len = alloc_len; 7713 ctsio->kern_total_len = alloc_len; 7714 } 7715 ctsio->kern_data_resid = 0; 7716 ctsio->kern_rel_offset = 0; 7717 7718 switch (cdb->options & RSO_OPTIONS_MASK) { 7719 case RSO_OPTIONS_ALL: 7720 all = (struct scsi_report_supported_opcodes_all *) 7721 ctsio->kern_data_ptr; 7722 num = 0; 7723 for (i = 0; i < 256; i++) { 7724 entry = &ctl_cmd_table[i]; 7725 if (entry->flags & CTL_CMD_FLAG_SA5) { 7726 for (j = 0; j < 32; j++) { 7727 sentry = &((const struct ctl_cmd_entry *) 7728 entry->execute)[j]; 7729 if (!ctl_cmd_applicable( 7730 lun->be_lun->lun_type, sentry)) 7731 continue; 7732 descr = &all->descr[num++]; 7733 descr->opcode = i; 7734 scsi_ulto2b(j, descr->service_action); 7735 descr->flags = RSO_SERVACTV; 7736 scsi_ulto2b(sentry->length, 7737 descr->cdb_length); 7738 } 7739 } else { 7740 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7741 entry)) 7742 continue; 7743 descr = &all->descr[num++]; 7744 descr->opcode = i; 7745 scsi_ulto2b(0, descr->service_action); 7746 descr->flags = 0; 7747 scsi_ulto2b(entry->length, descr->cdb_length); 7748 } 7749 } 7750 scsi_ulto4b( 7751 num * sizeof(struct scsi_report_supported_opcodes_descr), 7752 all->length); 7753 break; 7754 case RSO_OPTIONS_OC: 7755 one = (struct scsi_report_supported_opcodes_one *) 7756 ctsio->kern_data_ptr; 7757 entry = &ctl_cmd_table[opcode]; 7758 goto fill_one; 7759 case RSO_OPTIONS_OC_SA: 7760 one = (struct scsi_report_supported_opcodes_one *) 7761 ctsio->kern_data_ptr; 7762 entry = &ctl_cmd_table[opcode]; 7763 entry = &((const struct ctl_cmd_entry *) 7764 entry->execute)[service_action]; 7765fill_one: 7766 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7767 one->support = 3; 7768 scsi_ulto2b(entry->length, one->cdb_length); 7769 one->cdb_usage[0] = opcode; 7770 memcpy(&one->cdb_usage[1], entry->usage, 7771 entry->length - 1); 7772 } else 7773 one->support = 1; 7774 break; 7775 } 7776 7777 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7778 ctsio->be_move_done = ctl_config_move_done; 7779 7780 ctl_datamove((union ctl_io *)ctsio); 7781 return(retval); 7782} 7783 7784int 7785ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7786{ 7787 struct ctl_lun *lun; 7788 struct scsi_report_supported_tmf *cdb; 7789 struct scsi_report_supported_tmf_data *data; 7790 int retval; 7791 int alloc_len, total_len; 7792 7793 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7794 7795 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7796 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7797 7798 retval = CTL_RETVAL_COMPLETE; 7799 7800 total_len = sizeof(struct scsi_report_supported_tmf_data); 7801 alloc_len = scsi_4btoul(cdb->length); 7802 7803 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7804 7805 ctsio->kern_sg_entries = 0; 7806 7807 if (total_len < alloc_len) { 7808 ctsio->residual = alloc_len - total_len; 7809 ctsio->kern_data_len = total_len; 7810 ctsio->kern_total_len = total_len; 7811 } else { 7812 ctsio->residual = 0; 7813 ctsio->kern_data_len = alloc_len; 7814 ctsio->kern_total_len = alloc_len; 7815 } 7816 ctsio->kern_data_resid = 0; 7817 ctsio->kern_rel_offset = 0; 7818 7819 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7820 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7821 data->byte2 |= RST_ITNRS; 7822 7823 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7824 ctsio->be_move_done = ctl_config_move_done; 7825 7826 ctl_datamove((union ctl_io *)ctsio); 7827 return (retval); 7828} 7829 7830int 7831ctl_report_timestamp(struct ctl_scsiio *ctsio) 7832{ 7833 struct ctl_lun *lun; 7834 struct scsi_report_timestamp *cdb; 7835 struct scsi_report_timestamp_data *data; 7836 struct timeval tv; 7837 int64_t timestamp; 7838 int retval; 7839 int alloc_len, total_len; 7840 7841 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7842 7843 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7844 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7845 7846 retval = CTL_RETVAL_COMPLETE; 7847 7848 total_len = sizeof(struct scsi_report_timestamp_data); 7849 alloc_len = scsi_4btoul(cdb->length); 7850 7851 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7852 7853 ctsio->kern_sg_entries = 0; 7854 7855 if (total_len < alloc_len) { 7856 ctsio->residual = alloc_len - total_len; 7857 ctsio->kern_data_len = total_len; 7858 ctsio->kern_total_len = total_len; 7859 } else { 7860 ctsio->residual = 0; 7861 ctsio->kern_data_len = alloc_len; 7862 ctsio->kern_total_len = alloc_len; 7863 } 7864 ctsio->kern_data_resid = 0; 7865 ctsio->kern_rel_offset = 0; 7866 7867 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7868 scsi_ulto2b(sizeof(*data) - 2, data->length); 7869 data->origin = RTS_ORIG_OUTSIDE; 7870 getmicrotime(&tv); 7871 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7872 scsi_ulto4b(timestamp >> 16, data->timestamp); 7873 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7874 7875 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7876 ctsio->be_move_done = ctl_config_move_done; 7877 7878 ctl_datamove((union ctl_io *)ctsio); 7879 return (retval); 7880} 7881 7882int 7883ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7884{ 7885 struct scsi_per_res_in *cdb; 7886 int alloc_len, total_len = 0; 7887 /* struct scsi_per_res_in_rsrv in_data; */ 7888 struct ctl_lun *lun; 7889 struct ctl_softc *softc; 7890 7891 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7892 7893 softc = control_softc; 7894 7895 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7896 7897 alloc_len = scsi_2btoul(cdb->length); 7898 7899 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7900 7901retry: 7902 mtx_lock(&lun->lun_lock); 7903 switch (cdb->action) { 7904 case SPRI_RK: /* read keys */ 7905 total_len = sizeof(struct scsi_per_res_in_keys) + 7906 lun->pr_key_count * 7907 sizeof(struct scsi_per_res_key); 7908 break; 7909 case SPRI_RR: /* read reservation */ 7910 if (lun->flags & CTL_LUN_PR_RESERVED) 7911 total_len = sizeof(struct scsi_per_res_in_rsrv); 7912 else 7913 total_len = sizeof(struct scsi_per_res_in_header); 7914 break; 7915 case SPRI_RC: /* report capabilities */ 7916 total_len = sizeof(struct scsi_per_res_cap); 7917 break; 7918 case SPRI_RS: /* read full status */ 7919 total_len = sizeof(struct scsi_per_res_in_header) + 7920 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7921 lun->pr_key_count; 7922 break; 7923 default: 7924 panic("Invalid PR type %x", cdb->action); 7925 } 7926 mtx_unlock(&lun->lun_lock); 7927 7928 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7929 7930 if (total_len < alloc_len) { 7931 ctsio->residual = alloc_len - total_len; 7932 ctsio->kern_data_len = total_len; 7933 ctsio->kern_total_len = total_len; 7934 } else { 7935 ctsio->residual = 0; 7936 ctsio->kern_data_len = alloc_len; 7937 ctsio->kern_total_len = alloc_len; 7938 } 7939 7940 ctsio->kern_data_resid = 0; 7941 ctsio->kern_rel_offset = 0; 7942 ctsio->kern_sg_entries = 0; 7943 7944 mtx_lock(&lun->lun_lock); 7945 switch (cdb->action) { 7946 case SPRI_RK: { // read keys 7947 struct scsi_per_res_in_keys *res_keys; 7948 int i, key_count; 7949 7950 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7951 7952 /* 7953 * We had to drop the lock to allocate our buffer, which 7954 * leaves time for someone to come in with another 7955 * persistent reservation. (That is unlikely, though, 7956 * since this should be the only persistent reservation 7957 * command active right now.) 7958 */ 7959 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7960 (lun->pr_key_count * 7961 sizeof(struct scsi_per_res_key)))){ 7962 mtx_unlock(&lun->lun_lock); 7963 free(ctsio->kern_data_ptr, M_CTL); 7964 printf("%s: reservation length changed, retrying\n", 7965 __func__); 7966 goto retry; 7967 } 7968 7969 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7970 7971 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7972 lun->pr_key_count, res_keys->header.length); 7973 7974 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7975 if (lun->pr_keys[i] == 0) 7976 continue; 7977 7978 /* 7979 * We used lun->pr_key_count to calculate the 7980 * size to allocate. If it turns out the number of 7981 * initiators with the registered flag set is 7982 * larger than that (i.e. they haven't been kept in 7983 * sync), we've got a problem. 7984 */ 7985 if (key_count >= lun->pr_key_count) { 7986#ifdef NEEDTOPORT 7987 csevent_log(CSC_CTL | CSC_SHELF_SW | 7988 CTL_PR_ERROR, 7989 csevent_LogType_Fault, 7990 csevent_AlertLevel_Yellow, 7991 csevent_FRU_ShelfController, 7992 csevent_FRU_Firmware, 7993 csevent_FRU_Unknown, 7994 "registered keys %d >= key " 7995 "count %d", key_count, 7996 lun->pr_key_count); 7997#endif 7998 key_count++; 7999 continue; 8000 } 8001 scsi_u64to8b(lun->pr_keys[i], 8002 res_keys->keys[key_count].key); 8003 key_count++; 8004 } 8005 break; 8006 } 8007 case SPRI_RR: { // read reservation 8008 struct scsi_per_res_in_rsrv *res; 8009 int tmp_len, header_only; 8010 8011 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 8012 8013 scsi_ulto4b(lun->PRGeneration, res->header.generation); 8014 8015 if (lun->flags & CTL_LUN_PR_RESERVED) 8016 { 8017 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 8018 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 8019 res->header.length); 8020 header_only = 0; 8021 } else { 8022 tmp_len = sizeof(struct scsi_per_res_in_header); 8023 scsi_ulto4b(0, res->header.length); 8024 header_only = 1; 8025 } 8026 8027 /* 8028 * We had to drop the lock to allocate our buffer, which 8029 * leaves time for someone to come in with another 8030 * persistent reservation. (That is unlikely, though, 8031 * since this should be the only persistent reservation 8032 * command active right now.) 8033 */ 8034 if (tmp_len != total_len) { 8035 mtx_unlock(&lun->lun_lock); 8036 free(ctsio->kern_data_ptr, M_CTL); 8037 printf("%s: reservation status changed, retrying\n", 8038 __func__); 8039 goto retry; 8040 } 8041 8042 /* 8043 * No reservation held, so we're done. 8044 */ 8045 if (header_only != 0) 8046 break; 8047 8048 /* 8049 * If the registration is an All Registrants type, the key 8050 * is 0, since it doesn't really matter. 8051 */ 8052 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8053 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 8054 res->data.reservation); 8055 } 8056 res->data.scopetype = lun->res_type; 8057 break; 8058 } 8059 case SPRI_RC: //report capabilities 8060 { 8061 struct scsi_per_res_cap *res_cap; 8062 uint16_t type_mask; 8063 8064 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 8065 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 8066 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 8067 type_mask = SPRI_TM_WR_EX_AR | 8068 SPRI_TM_EX_AC_RO | 8069 SPRI_TM_WR_EX_RO | 8070 SPRI_TM_EX_AC | 8071 SPRI_TM_WR_EX | 8072 SPRI_TM_EX_AC_AR; 8073 scsi_ulto2b(type_mask, res_cap->type_mask); 8074 break; 8075 } 8076 case SPRI_RS: { // read full status 8077 struct scsi_per_res_in_full *res_status; 8078 struct scsi_per_res_in_full_desc *res_desc; 8079 struct ctl_port *port; 8080 int i, len; 8081 8082 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 8083 8084 /* 8085 * We had to drop the lock to allocate our buffer, which 8086 * leaves time for someone to come in with another 8087 * persistent reservation. (That is unlikely, though, 8088 * since this should be the only persistent reservation 8089 * command active right now.) 8090 */ 8091 if (total_len < (sizeof(struct scsi_per_res_in_header) + 8092 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 8093 lun->pr_key_count)){ 8094 mtx_unlock(&lun->lun_lock); 8095 free(ctsio->kern_data_ptr, M_CTL); 8096 printf("%s: reservation length changed, retrying\n", 8097 __func__); 8098 goto retry; 8099 } 8100 8101 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 8102 8103 res_desc = &res_status->desc[0]; 8104 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 8105 if (lun->pr_keys[i] == 0) 8106 continue; 8107 8108 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 8109 if ((lun->flags & CTL_LUN_PR_RESERVED) && 8110 (lun->pr_res_idx == i || 8111 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 8112 res_desc->flags = SPRI_FULL_R_HOLDER; 8113 res_desc->scopetype = lun->res_type; 8114 } 8115 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 8116 res_desc->rel_trgt_port_id); 8117 len = 0; 8118 port = softc->ctl_ports[ 8119 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 8120 if (port != NULL) 8121 len = ctl_create_iid(port, 8122 i % CTL_MAX_INIT_PER_PORT, 8123 res_desc->transport_id); 8124 scsi_ulto4b(len, res_desc->additional_length); 8125 res_desc = (struct scsi_per_res_in_full_desc *) 8126 &res_desc->transport_id[len]; 8127 } 8128 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 8129 res_status->header.length); 8130 break; 8131 } 8132 default: 8133 /* 8134 * This is a bug, because we just checked for this above, 8135 * and should have returned an error. 8136 */ 8137 panic("Invalid PR type %x", cdb->action); 8138 break; /* NOTREACHED */ 8139 } 8140 mtx_unlock(&lun->lun_lock); 8141 8142 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8143 ctsio->be_move_done = ctl_config_move_done; 8144 8145 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8146 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8147 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8148 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8149 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8150 8151 ctl_datamove((union ctl_io *)ctsio); 8152 8153 return (CTL_RETVAL_COMPLETE); 8154} 8155 8156/* 8157 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8158 * it should return. 8159 */ 8160static int 8161ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8162 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8163 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8164 struct scsi_per_res_out_parms* param) 8165{ 8166 union ctl_ha_msg persis_io; 8167 int retval, i; 8168 int isc_retval; 8169 8170 retval = 0; 8171 8172 mtx_lock(&lun->lun_lock); 8173 if (sa_res_key == 0) { 8174 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8175 /* validate scope and type */ 8176 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8177 SPR_LU_SCOPE) { 8178 mtx_unlock(&lun->lun_lock); 8179 ctl_set_invalid_field(/*ctsio*/ ctsio, 8180 /*sks_valid*/ 1, 8181 /*command*/ 1, 8182 /*field*/ 2, 8183 /*bit_valid*/ 1, 8184 /*bit*/ 4); 8185 ctl_done((union ctl_io *)ctsio); 8186 return (1); 8187 } 8188 8189 if (type>8 || type==2 || type==4 || type==0) { 8190 mtx_unlock(&lun->lun_lock); 8191 ctl_set_invalid_field(/*ctsio*/ ctsio, 8192 /*sks_valid*/ 1, 8193 /*command*/ 1, 8194 /*field*/ 2, 8195 /*bit_valid*/ 1, 8196 /*bit*/ 0); 8197 ctl_done((union ctl_io *)ctsio); 8198 return (1); 8199 } 8200 8201 /* 8202 * Unregister everybody else and build UA for 8203 * them 8204 */ 8205 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8206 if (i == residx || lun->pr_keys[i] == 0) 8207 continue; 8208 8209 if (!persis_offset 8210 && i <CTL_MAX_INITIATORS) 8211 lun->pending_ua[i] |= 8212 CTL_UA_REG_PREEMPT; 8213 else if (persis_offset 8214 && i >= persis_offset) 8215 lun->pending_ua[i-persis_offset] |= 8216 CTL_UA_REG_PREEMPT; 8217 lun->pr_keys[i] = 0; 8218 } 8219 lun->pr_key_count = 1; 8220 lun->res_type = type; 8221 if (lun->res_type != SPR_TYPE_WR_EX_AR 8222 && lun->res_type != SPR_TYPE_EX_AC_AR) 8223 lun->pr_res_idx = residx; 8224 8225 /* send msg to other side */ 8226 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8227 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8228 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8229 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8230 persis_io.pr.pr_info.res_type = type; 8231 memcpy(persis_io.pr.pr_info.sa_res_key, 8232 param->serv_act_res_key, 8233 sizeof(param->serv_act_res_key)); 8234 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8235 &persis_io, sizeof(persis_io), 0)) > 8236 CTL_HA_STATUS_SUCCESS) { 8237 printf("CTL:Persis Out error returned " 8238 "from ctl_ha_msg_send %d\n", 8239 isc_retval); 8240 } 8241 } else { 8242 /* not all registrants */ 8243 mtx_unlock(&lun->lun_lock); 8244 free(ctsio->kern_data_ptr, M_CTL); 8245 ctl_set_invalid_field(ctsio, 8246 /*sks_valid*/ 1, 8247 /*command*/ 0, 8248 /*field*/ 8, 8249 /*bit_valid*/ 0, 8250 /*bit*/ 0); 8251 ctl_done((union ctl_io *)ctsio); 8252 return (1); 8253 } 8254 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8255 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8256 int found = 0; 8257 8258 if (res_key == sa_res_key) { 8259 /* special case */ 8260 /* 8261 * The spec implies this is not good but doesn't 8262 * say what to do. There are two choices either 8263 * generate a res conflict or check condition 8264 * with illegal field in parameter data. Since 8265 * that is what is done when the sa_res_key is 8266 * zero I'll take that approach since this has 8267 * to do with the sa_res_key. 8268 */ 8269 mtx_unlock(&lun->lun_lock); 8270 free(ctsio->kern_data_ptr, M_CTL); 8271 ctl_set_invalid_field(ctsio, 8272 /*sks_valid*/ 1, 8273 /*command*/ 0, 8274 /*field*/ 8, 8275 /*bit_valid*/ 0, 8276 /*bit*/ 0); 8277 ctl_done((union ctl_io *)ctsio); 8278 return (1); 8279 } 8280 8281 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8282 if (lun->pr_keys[i] != sa_res_key) 8283 continue; 8284 8285 found = 1; 8286 lun->pr_keys[i] = 0; 8287 lun->pr_key_count--; 8288 8289 if (!persis_offset && i < CTL_MAX_INITIATORS) 8290 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8291 else if (persis_offset && i >= persis_offset) 8292 lun->pending_ua[i-persis_offset] |= 8293 CTL_UA_REG_PREEMPT; 8294 } 8295 if (!found) { 8296 mtx_unlock(&lun->lun_lock); 8297 free(ctsio->kern_data_ptr, M_CTL); 8298 ctl_set_reservation_conflict(ctsio); 8299 ctl_done((union ctl_io *)ctsio); 8300 return (CTL_RETVAL_COMPLETE); 8301 } 8302 /* send msg to other side */ 8303 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8304 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8305 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8306 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8307 persis_io.pr.pr_info.res_type = type; 8308 memcpy(persis_io.pr.pr_info.sa_res_key, 8309 param->serv_act_res_key, 8310 sizeof(param->serv_act_res_key)); 8311 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8312 &persis_io, sizeof(persis_io), 0)) > 8313 CTL_HA_STATUS_SUCCESS) { 8314 printf("CTL:Persis Out error returned from " 8315 "ctl_ha_msg_send %d\n", isc_retval); 8316 } 8317 } else { 8318 /* Reserved but not all registrants */ 8319 /* sa_res_key is res holder */ 8320 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8321 /* validate scope and type */ 8322 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8323 SPR_LU_SCOPE) { 8324 mtx_unlock(&lun->lun_lock); 8325 ctl_set_invalid_field(/*ctsio*/ ctsio, 8326 /*sks_valid*/ 1, 8327 /*command*/ 1, 8328 /*field*/ 2, 8329 /*bit_valid*/ 1, 8330 /*bit*/ 4); 8331 ctl_done((union ctl_io *)ctsio); 8332 return (1); 8333 } 8334 8335 if (type>8 || type==2 || type==4 || type==0) { 8336 mtx_unlock(&lun->lun_lock); 8337 ctl_set_invalid_field(/*ctsio*/ ctsio, 8338 /*sks_valid*/ 1, 8339 /*command*/ 1, 8340 /*field*/ 2, 8341 /*bit_valid*/ 1, 8342 /*bit*/ 0); 8343 ctl_done((union ctl_io *)ctsio); 8344 return (1); 8345 } 8346 8347 /* 8348 * Do the following: 8349 * if sa_res_key != res_key remove all 8350 * registrants w/sa_res_key and generate UA 8351 * for these registrants(Registrations 8352 * Preempted) if it wasn't an exclusive 8353 * reservation generate UA(Reservations 8354 * Preempted) for all other registered nexuses 8355 * if the type has changed. Establish the new 8356 * reservation and holder. If res_key and 8357 * sa_res_key are the same do the above 8358 * except don't unregister the res holder. 8359 */ 8360 8361 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8362 if (i == residx || lun->pr_keys[i] == 0) 8363 continue; 8364 8365 if (sa_res_key == lun->pr_keys[i]) { 8366 lun->pr_keys[i] = 0; 8367 lun->pr_key_count--; 8368 8369 if (!persis_offset 8370 && i < CTL_MAX_INITIATORS) 8371 lun->pending_ua[i] |= 8372 CTL_UA_REG_PREEMPT; 8373 else if (persis_offset 8374 && i >= persis_offset) 8375 lun->pending_ua[i-persis_offset] |= 8376 CTL_UA_REG_PREEMPT; 8377 } else if (type != lun->res_type 8378 && (lun->res_type == SPR_TYPE_WR_EX_RO 8379 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8380 if (!persis_offset 8381 && i < CTL_MAX_INITIATORS) 8382 lun->pending_ua[i] |= 8383 CTL_UA_RES_RELEASE; 8384 else if (persis_offset 8385 && i >= persis_offset) 8386 lun->pending_ua[ 8387 i-persis_offset] |= 8388 CTL_UA_RES_RELEASE; 8389 } 8390 } 8391 lun->res_type = type; 8392 if (lun->res_type != SPR_TYPE_WR_EX_AR 8393 && lun->res_type != SPR_TYPE_EX_AC_AR) 8394 lun->pr_res_idx = residx; 8395 else 8396 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8397 8398 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8399 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8400 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8401 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8402 persis_io.pr.pr_info.res_type = type; 8403 memcpy(persis_io.pr.pr_info.sa_res_key, 8404 param->serv_act_res_key, 8405 sizeof(param->serv_act_res_key)); 8406 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8407 &persis_io, sizeof(persis_io), 0)) > 8408 CTL_HA_STATUS_SUCCESS) { 8409 printf("CTL:Persis Out error returned " 8410 "from ctl_ha_msg_send %d\n", 8411 isc_retval); 8412 } 8413 } else { 8414 /* 8415 * sa_res_key is not the res holder just 8416 * remove registrants 8417 */ 8418 int found=0; 8419 8420 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8421 if (sa_res_key != lun->pr_keys[i]) 8422 continue; 8423 8424 found = 1; 8425 lun->pr_keys[i] = 0; 8426 lun->pr_key_count--; 8427 8428 if (!persis_offset 8429 && i < CTL_MAX_INITIATORS) 8430 lun->pending_ua[i] |= 8431 CTL_UA_REG_PREEMPT; 8432 else if (persis_offset 8433 && i >= persis_offset) 8434 lun->pending_ua[i-persis_offset] |= 8435 CTL_UA_REG_PREEMPT; 8436 } 8437 8438 if (!found) { 8439 mtx_unlock(&lun->lun_lock); 8440 free(ctsio->kern_data_ptr, M_CTL); 8441 ctl_set_reservation_conflict(ctsio); 8442 ctl_done((union ctl_io *)ctsio); 8443 return (1); 8444 } 8445 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8446 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8447 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8448 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8449 persis_io.pr.pr_info.res_type = type; 8450 memcpy(persis_io.pr.pr_info.sa_res_key, 8451 param->serv_act_res_key, 8452 sizeof(param->serv_act_res_key)); 8453 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8454 &persis_io, sizeof(persis_io), 0)) > 8455 CTL_HA_STATUS_SUCCESS) { 8456 printf("CTL:Persis Out error returned " 8457 "from ctl_ha_msg_send %d\n", 8458 isc_retval); 8459 } 8460 } 8461 } 8462 8463 lun->PRGeneration++; 8464 mtx_unlock(&lun->lun_lock); 8465 8466 return (retval); 8467} 8468 8469static void 8470ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8471{ 8472 uint64_t sa_res_key; 8473 int i; 8474 8475 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8476 8477 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8478 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8479 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8480 if (sa_res_key == 0) { 8481 /* 8482 * Unregister everybody else and build UA for 8483 * them 8484 */ 8485 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8486 if (i == msg->pr.pr_info.residx || 8487 lun->pr_keys[i] == 0) 8488 continue; 8489 8490 if (!persis_offset 8491 && i < CTL_MAX_INITIATORS) 8492 lun->pending_ua[i] |= 8493 CTL_UA_REG_PREEMPT; 8494 else if (persis_offset && i >= persis_offset) 8495 lun->pending_ua[i - persis_offset] |= 8496 CTL_UA_REG_PREEMPT; 8497 lun->pr_keys[i] = 0; 8498 } 8499 8500 lun->pr_key_count = 1; 8501 lun->res_type = msg->pr.pr_info.res_type; 8502 if (lun->res_type != SPR_TYPE_WR_EX_AR 8503 && lun->res_type != SPR_TYPE_EX_AC_AR) 8504 lun->pr_res_idx = msg->pr.pr_info.residx; 8505 } else { 8506 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8507 if (sa_res_key == lun->pr_keys[i]) 8508 continue; 8509 8510 lun->pr_keys[i] = 0; 8511 lun->pr_key_count--; 8512 8513 if (!persis_offset 8514 && i < persis_offset) 8515 lun->pending_ua[i] |= 8516 CTL_UA_REG_PREEMPT; 8517 else if (persis_offset 8518 && i >= persis_offset) 8519 lun->pending_ua[i - persis_offset] |= 8520 CTL_UA_REG_PREEMPT; 8521 } 8522 } 8523 } else { 8524 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8525 if (i == msg->pr.pr_info.residx || 8526 lun->pr_keys[i] == 0) 8527 continue; 8528 8529 if (sa_res_key == lun->pr_keys[i]) { 8530 lun->pr_keys[i] = 0; 8531 lun->pr_key_count--; 8532 if (!persis_offset 8533 && i < CTL_MAX_INITIATORS) 8534 lun->pending_ua[i] |= 8535 CTL_UA_REG_PREEMPT; 8536 else if (persis_offset 8537 && i >= persis_offset) 8538 lun->pending_ua[i - persis_offset] |= 8539 CTL_UA_REG_PREEMPT; 8540 } else if (msg->pr.pr_info.res_type != lun->res_type 8541 && (lun->res_type == SPR_TYPE_WR_EX_RO 8542 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8543 if (!persis_offset 8544 && i < persis_offset) 8545 lun->pending_ua[i] |= 8546 CTL_UA_RES_RELEASE; 8547 else if (persis_offset 8548 && i >= persis_offset) 8549 lun->pending_ua[i - persis_offset] |= 8550 CTL_UA_RES_RELEASE; 8551 } 8552 } 8553 lun->res_type = msg->pr.pr_info.res_type; 8554 if (lun->res_type != SPR_TYPE_WR_EX_AR 8555 && lun->res_type != SPR_TYPE_EX_AC_AR) 8556 lun->pr_res_idx = msg->pr.pr_info.residx; 8557 else 8558 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8559 } 8560 lun->PRGeneration++; 8561 8562} 8563 8564 8565int 8566ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8567{ 8568 int retval; 8569 int isc_retval; 8570 u_int32_t param_len; 8571 struct scsi_per_res_out *cdb; 8572 struct ctl_lun *lun; 8573 struct scsi_per_res_out_parms* param; 8574 struct ctl_softc *softc; 8575 uint32_t residx; 8576 uint64_t res_key, sa_res_key; 8577 uint8_t type; 8578 union ctl_ha_msg persis_io; 8579 int i; 8580 8581 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8582 8583 retval = CTL_RETVAL_COMPLETE; 8584 8585 softc = control_softc; 8586 8587 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8588 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8589 8590 /* 8591 * We only support whole-LUN scope. The scope & type are ignored for 8592 * register, register and ignore existing key and clear. 8593 * We sometimes ignore scope and type on preempts too!! 8594 * Verify reservation type here as well. 8595 */ 8596 type = cdb->scope_type & SPR_TYPE_MASK; 8597 if ((cdb->action == SPRO_RESERVE) 8598 || (cdb->action == SPRO_RELEASE)) { 8599 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8600 ctl_set_invalid_field(/*ctsio*/ ctsio, 8601 /*sks_valid*/ 1, 8602 /*command*/ 1, 8603 /*field*/ 2, 8604 /*bit_valid*/ 1, 8605 /*bit*/ 4); 8606 ctl_done((union ctl_io *)ctsio); 8607 return (CTL_RETVAL_COMPLETE); 8608 } 8609 8610 if (type>8 || type==2 || type==4 || type==0) { 8611 ctl_set_invalid_field(/*ctsio*/ ctsio, 8612 /*sks_valid*/ 1, 8613 /*command*/ 1, 8614 /*field*/ 2, 8615 /*bit_valid*/ 1, 8616 /*bit*/ 0); 8617 ctl_done((union ctl_io *)ctsio); 8618 return (CTL_RETVAL_COMPLETE); 8619 } 8620 } 8621 8622 param_len = scsi_4btoul(cdb->length); 8623 8624 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8625 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8626 ctsio->kern_data_len = param_len; 8627 ctsio->kern_total_len = param_len; 8628 ctsio->kern_data_resid = 0; 8629 ctsio->kern_rel_offset = 0; 8630 ctsio->kern_sg_entries = 0; 8631 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8632 ctsio->be_move_done = ctl_config_move_done; 8633 ctl_datamove((union ctl_io *)ctsio); 8634 8635 return (CTL_RETVAL_COMPLETE); 8636 } 8637 8638 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8639 8640 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8641 res_key = scsi_8btou64(param->res_key.key); 8642 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8643 8644 /* 8645 * Validate the reservation key here except for SPRO_REG_IGNO 8646 * This must be done for all other service actions 8647 */ 8648 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8649 mtx_lock(&lun->lun_lock); 8650 if (lun->pr_keys[residx] != 0) { 8651 if (res_key != lun->pr_keys[residx]) { 8652 /* 8653 * The current key passed in doesn't match 8654 * the one the initiator previously 8655 * registered. 8656 */ 8657 mtx_unlock(&lun->lun_lock); 8658 free(ctsio->kern_data_ptr, M_CTL); 8659 ctl_set_reservation_conflict(ctsio); 8660 ctl_done((union ctl_io *)ctsio); 8661 return (CTL_RETVAL_COMPLETE); 8662 } 8663 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8664 /* 8665 * We are not registered 8666 */ 8667 mtx_unlock(&lun->lun_lock); 8668 free(ctsio->kern_data_ptr, M_CTL); 8669 ctl_set_reservation_conflict(ctsio); 8670 ctl_done((union ctl_io *)ctsio); 8671 return (CTL_RETVAL_COMPLETE); 8672 } else if (res_key != 0) { 8673 /* 8674 * We are not registered and trying to register but 8675 * the register key isn't zero. 8676 */ 8677 mtx_unlock(&lun->lun_lock); 8678 free(ctsio->kern_data_ptr, M_CTL); 8679 ctl_set_reservation_conflict(ctsio); 8680 ctl_done((union ctl_io *)ctsio); 8681 return (CTL_RETVAL_COMPLETE); 8682 } 8683 mtx_unlock(&lun->lun_lock); 8684 } 8685 8686 switch (cdb->action & SPRO_ACTION_MASK) { 8687 case SPRO_REGISTER: 8688 case SPRO_REG_IGNO: { 8689 8690#if 0 8691 printf("Registration received\n"); 8692#endif 8693 8694 /* 8695 * We don't support any of these options, as we report in 8696 * the read capabilities request (see 8697 * ctl_persistent_reserve_in(), above). 8698 */ 8699 if ((param->flags & SPR_SPEC_I_PT) 8700 || (param->flags & SPR_ALL_TG_PT) 8701 || (param->flags & SPR_APTPL)) { 8702 int bit_ptr; 8703 8704 if (param->flags & SPR_APTPL) 8705 bit_ptr = 0; 8706 else if (param->flags & SPR_ALL_TG_PT) 8707 bit_ptr = 2; 8708 else /* SPR_SPEC_I_PT */ 8709 bit_ptr = 3; 8710 8711 free(ctsio->kern_data_ptr, M_CTL); 8712 ctl_set_invalid_field(ctsio, 8713 /*sks_valid*/ 1, 8714 /*command*/ 0, 8715 /*field*/ 20, 8716 /*bit_valid*/ 1, 8717 /*bit*/ bit_ptr); 8718 ctl_done((union ctl_io *)ctsio); 8719 return (CTL_RETVAL_COMPLETE); 8720 } 8721 8722 mtx_lock(&lun->lun_lock); 8723 8724 /* 8725 * The initiator wants to clear the 8726 * key/unregister. 8727 */ 8728 if (sa_res_key == 0) { 8729 if ((res_key == 0 8730 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8731 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8732 && lun->pr_keys[residx] == 0)) { 8733 mtx_unlock(&lun->lun_lock); 8734 goto done; 8735 } 8736 8737 lun->pr_keys[residx] = 0; 8738 lun->pr_key_count--; 8739 8740 if (residx == lun->pr_res_idx) { 8741 lun->flags &= ~CTL_LUN_PR_RESERVED; 8742 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8743 8744 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8745 || lun->res_type == SPR_TYPE_EX_AC_RO) 8746 && lun->pr_key_count) { 8747 /* 8748 * If the reservation is a registrants 8749 * only type we need to generate a UA 8750 * for other registered inits. The 8751 * sense code should be RESERVATIONS 8752 * RELEASED 8753 */ 8754 8755 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8756 if (lun->pr_keys[ 8757 i + persis_offset] == 0) 8758 continue; 8759 lun->pending_ua[i] |= 8760 CTL_UA_RES_RELEASE; 8761 } 8762 } 8763 lun->res_type = 0; 8764 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8765 if (lun->pr_key_count==0) { 8766 lun->flags &= ~CTL_LUN_PR_RESERVED; 8767 lun->res_type = 0; 8768 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8769 } 8770 } 8771 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8772 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8773 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8774 persis_io.pr.pr_info.residx = residx; 8775 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8776 &persis_io, sizeof(persis_io), 0 )) > 8777 CTL_HA_STATUS_SUCCESS) { 8778 printf("CTL:Persis Out error returned from " 8779 "ctl_ha_msg_send %d\n", isc_retval); 8780 } 8781 } else /* sa_res_key != 0 */ { 8782 8783 /* 8784 * If we aren't registered currently then increment 8785 * the key count and set the registered flag. 8786 */ 8787 if (lun->pr_keys[residx] == 0) 8788 lun->pr_key_count++; 8789 lun->pr_keys[residx] = sa_res_key; 8790 8791 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8792 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8793 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8794 persis_io.pr.pr_info.residx = residx; 8795 memcpy(persis_io.pr.pr_info.sa_res_key, 8796 param->serv_act_res_key, 8797 sizeof(param->serv_act_res_key)); 8798 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8799 &persis_io, sizeof(persis_io), 0)) > 8800 CTL_HA_STATUS_SUCCESS) { 8801 printf("CTL:Persis Out error returned from " 8802 "ctl_ha_msg_send %d\n", isc_retval); 8803 } 8804 } 8805 lun->PRGeneration++; 8806 mtx_unlock(&lun->lun_lock); 8807 8808 break; 8809 } 8810 case SPRO_RESERVE: 8811#if 0 8812 printf("Reserve executed type %d\n", type); 8813#endif 8814 mtx_lock(&lun->lun_lock); 8815 if (lun->flags & CTL_LUN_PR_RESERVED) { 8816 /* 8817 * if this isn't the reservation holder and it's 8818 * not a "all registrants" type or if the type is 8819 * different then we have a conflict 8820 */ 8821 if ((lun->pr_res_idx != residx 8822 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8823 || lun->res_type != type) { 8824 mtx_unlock(&lun->lun_lock); 8825 free(ctsio->kern_data_ptr, M_CTL); 8826 ctl_set_reservation_conflict(ctsio); 8827 ctl_done((union ctl_io *)ctsio); 8828 return (CTL_RETVAL_COMPLETE); 8829 } 8830 mtx_unlock(&lun->lun_lock); 8831 } else /* create a reservation */ { 8832 /* 8833 * If it's not an "all registrants" type record 8834 * reservation holder 8835 */ 8836 if (type != SPR_TYPE_WR_EX_AR 8837 && type != SPR_TYPE_EX_AC_AR) 8838 lun->pr_res_idx = residx; /* Res holder */ 8839 else 8840 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8841 8842 lun->flags |= CTL_LUN_PR_RESERVED; 8843 lun->res_type = type; 8844 8845 mtx_unlock(&lun->lun_lock); 8846 8847 /* send msg to other side */ 8848 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8849 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8850 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8851 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8852 persis_io.pr.pr_info.res_type = type; 8853 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8854 &persis_io, sizeof(persis_io), 0)) > 8855 CTL_HA_STATUS_SUCCESS) { 8856 printf("CTL:Persis Out error returned from " 8857 "ctl_ha_msg_send %d\n", isc_retval); 8858 } 8859 } 8860 break; 8861 8862 case SPRO_RELEASE: 8863 mtx_lock(&lun->lun_lock); 8864 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8865 /* No reservation exists return good status */ 8866 mtx_unlock(&lun->lun_lock); 8867 goto done; 8868 } 8869 /* 8870 * Is this nexus a reservation holder? 8871 */ 8872 if (lun->pr_res_idx != residx 8873 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8874 /* 8875 * not a res holder return good status but 8876 * do nothing 8877 */ 8878 mtx_unlock(&lun->lun_lock); 8879 goto done; 8880 } 8881 8882 if (lun->res_type != type) { 8883 mtx_unlock(&lun->lun_lock); 8884 free(ctsio->kern_data_ptr, M_CTL); 8885 ctl_set_illegal_pr_release(ctsio); 8886 ctl_done((union ctl_io *)ctsio); 8887 return (CTL_RETVAL_COMPLETE); 8888 } 8889 8890 /* okay to release */ 8891 lun->flags &= ~CTL_LUN_PR_RESERVED; 8892 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8893 lun->res_type = 0; 8894 8895 /* 8896 * if this isn't an exclusive access 8897 * res generate UA for all other 8898 * registrants. 8899 */ 8900 if (type != SPR_TYPE_EX_AC 8901 && type != SPR_TYPE_WR_EX) { 8902 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8903 if (i == residx || 8904 lun->pr_keys[i + persis_offset] == 0) 8905 continue; 8906 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8907 } 8908 } 8909 mtx_unlock(&lun->lun_lock); 8910 /* Send msg to other side */ 8911 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8912 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8913 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8914 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8915 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8916 printf("CTL:Persis Out error returned from " 8917 "ctl_ha_msg_send %d\n", isc_retval); 8918 } 8919 break; 8920 8921 case SPRO_CLEAR: 8922 /* send msg to other side */ 8923 8924 mtx_lock(&lun->lun_lock); 8925 lun->flags &= ~CTL_LUN_PR_RESERVED; 8926 lun->res_type = 0; 8927 lun->pr_key_count = 0; 8928 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8929 8930 lun->pr_keys[residx] = 0; 8931 8932 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8933 if (lun->pr_keys[i] != 0) { 8934 if (!persis_offset && i < CTL_MAX_INITIATORS) 8935 lun->pending_ua[i] |= 8936 CTL_UA_RES_PREEMPT; 8937 else if (persis_offset && i >= persis_offset) 8938 lun->pending_ua[i-persis_offset] |= 8939 CTL_UA_RES_PREEMPT; 8940 8941 lun->pr_keys[i] = 0; 8942 } 8943 lun->PRGeneration++; 8944 mtx_unlock(&lun->lun_lock); 8945 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8946 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8947 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8948 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8949 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8950 printf("CTL:Persis Out error returned from " 8951 "ctl_ha_msg_send %d\n", isc_retval); 8952 } 8953 break; 8954 8955 case SPRO_PREEMPT: { 8956 int nretval; 8957 8958 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8959 residx, ctsio, cdb, param); 8960 if (nretval != 0) 8961 return (CTL_RETVAL_COMPLETE); 8962 break; 8963 } 8964 default: 8965 panic("Invalid PR type %x", cdb->action); 8966 } 8967 8968done: 8969 free(ctsio->kern_data_ptr, M_CTL); 8970 ctl_set_success(ctsio); 8971 ctl_done((union ctl_io *)ctsio); 8972 8973 return (retval); 8974} 8975 8976/* 8977 * This routine is for handling a message from the other SC pertaining to 8978 * persistent reserve out. All the error checking will have been done 8979 * so only perorming the action need be done here to keep the two 8980 * in sync. 8981 */ 8982static void 8983ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8984{ 8985 struct ctl_lun *lun; 8986 struct ctl_softc *softc; 8987 int i; 8988 uint32_t targ_lun; 8989 8990 softc = control_softc; 8991 8992 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8993 lun = softc->ctl_luns[targ_lun]; 8994 mtx_lock(&lun->lun_lock); 8995 switch(msg->pr.pr_info.action) { 8996 case CTL_PR_REG_KEY: 8997 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8998 lun->pr_key_count++; 8999 lun->pr_keys[msg->pr.pr_info.residx] = 9000 scsi_8btou64(msg->pr.pr_info.sa_res_key); 9001 lun->PRGeneration++; 9002 break; 9003 9004 case CTL_PR_UNREG_KEY: 9005 lun->pr_keys[msg->pr.pr_info.residx] = 0; 9006 lun->pr_key_count--; 9007 9008 /* XXX Need to see if the reservation has been released */ 9009 /* if so do we need to generate UA? */ 9010 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 9011 lun->flags &= ~CTL_LUN_PR_RESERVED; 9012 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9013 9014 if ((lun->res_type == SPR_TYPE_WR_EX_RO 9015 || lun->res_type == SPR_TYPE_EX_AC_RO) 9016 && lun->pr_key_count) { 9017 /* 9018 * If the reservation is a registrants 9019 * only type we need to generate a UA 9020 * for other registered inits. The 9021 * sense code should be RESERVATIONS 9022 * RELEASED 9023 */ 9024 9025 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 9026 if (lun->pr_keys[i+ 9027 persis_offset] == 0) 9028 continue; 9029 9030 lun->pending_ua[i] |= 9031 CTL_UA_RES_RELEASE; 9032 } 9033 } 9034 lun->res_type = 0; 9035 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 9036 if (lun->pr_key_count==0) { 9037 lun->flags &= ~CTL_LUN_PR_RESERVED; 9038 lun->res_type = 0; 9039 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9040 } 9041 } 9042 lun->PRGeneration++; 9043 break; 9044 9045 case CTL_PR_RESERVE: 9046 lun->flags |= CTL_LUN_PR_RESERVED; 9047 lun->res_type = msg->pr.pr_info.res_type; 9048 lun->pr_res_idx = msg->pr.pr_info.residx; 9049 9050 break; 9051 9052 case CTL_PR_RELEASE: 9053 /* 9054 * if this isn't an exclusive access res generate UA for all 9055 * other registrants. 9056 */ 9057 if (lun->res_type != SPR_TYPE_EX_AC 9058 && lun->res_type != SPR_TYPE_WR_EX) { 9059 for (i = 0; i < CTL_MAX_INITIATORS; i++) 9060 if (lun->pr_keys[i+persis_offset] != 0) 9061 lun->pending_ua[i] |= 9062 CTL_UA_RES_RELEASE; 9063 } 9064 9065 lun->flags &= ~CTL_LUN_PR_RESERVED; 9066 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9067 lun->res_type = 0; 9068 break; 9069 9070 case CTL_PR_PREEMPT: 9071 ctl_pro_preempt_other(lun, msg); 9072 break; 9073 case CTL_PR_CLEAR: 9074 lun->flags &= ~CTL_LUN_PR_RESERVED; 9075 lun->res_type = 0; 9076 lun->pr_key_count = 0; 9077 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9078 9079 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9080 if (lun->pr_keys[i] == 0) 9081 continue; 9082 if (!persis_offset 9083 && i < CTL_MAX_INITIATORS) 9084 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 9085 else if (persis_offset 9086 && i >= persis_offset) 9087 lun->pending_ua[i-persis_offset] |= 9088 CTL_UA_RES_PREEMPT; 9089 lun->pr_keys[i] = 0; 9090 } 9091 lun->PRGeneration++; 9092 break; 9093 } 9094 9095 mtx_unlock(&lun->lun_lock); 9096} 9097 9098int 9099ctl_read_write(struct ctl_scsiio *ctsio) 9100{ 9101 struct ctl_lun *lun; 9102 struct ctl_lba_len_flags *lbalen; 9103 uint64_t lba; 9104 uint32_t num_blocks; 9105 int flags, retval; 9106 int isread; 9107 9108 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9109 9110 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9111 9112 flags = 0; 9113 retval = CTL_RETVAL_COMPLETE; 9114 9115 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9116 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9117 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 9118 uint32_t residx; 9119 9120 /* 9121 * XXX KDM need a lock here. 9122 */ 9123 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9124 if ((lun->res_type == SPR_TYPE_EX_AC 9125 && residx != lun->pr_res_idx) 9126 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9127 || lun->res_type == SPR_TYPE_EX_AC_AR) 9128 && lun->pr_keys[residx] == 0)) { 9129 ctl_set_reservation_conflict(ctsio); 9130 ctl_done((union ctl_io *)ctsio); 9131 return (CTL_RETVAL_COMPLETE); 9132 } 9133 } 9134 9135 switch (ctsio->cdb[0]) { 9136 case READ_6: 9137 case WRITE_6: { 9138 struct scsi_rw_6 *cdb; 9139 9140 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9141 9142 lba = scsi_3btoul(cdb->addr); 9143 /* only 5 bits are valid in the most significant address byte */ 9144 lba &= 0x1fffff; 9145 num_blocks = cdb->length; 9146 /* 9147 * This is correct according to SBC-2. 9148 */ 9149 if (num_blocks == 0) 9150 num_blocks = 256; 9151 break; 9152 } 9153 case READ_10: 9154 case WRITE_10: { 9155 struct scsi_rw_10 *cdb; 9156 9157 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9158 if (cdb->byte2 & SRW10_FUA) 9159 flags |= CTL_LLF_FUA; 9160 if (cdb->byte2 & SRW10_DPO) 9161 flags |= CTL_LLF_DPO; 9162 lba = scsi_4btoul(cdb->addr); 9163 num_blocks = scsi_2btoul(cdb->length); 9164 break; 9165 } 9166 case WRITE_VERIFY_10: { 9167 struct scsi_write_verify_10 *cdb; 9168 9169 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9170 flags |= CTL_LLF_FUA; 9171 if (cdb->byte2 & SWV_DPO) 9172 flags |= CTL_LLF_DPO; 9173 lba = scsi_4btoul(cdb->addr); 9174 num_blocks = scsi_2btoul(cdb->length); 9175 break; 9176 } 9177 case READ_12: 9178 case WRITE_12: { 9179 struct scsi_rw_12 *cdb; 9180 9181 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9182 if (cdb->byte2 & SRW12_FUA) 9183 flags |= CTL_LLF_FUA; 9184 if (cdb->byte2 & SRW12_DPO) 9185 flags |= CTL_LLF_DPO; 9186 lba = scsi_4btoul(cdb->addr); 9187 num_blocks = scsi_4btoul(cdb->length); 9188 break; 9189 } 9190 case WRITE_VERIFY_12: { 9191 struct scsi_write_verify_12 *cdb; 9192 9193 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9194 flags |= CTL_LLF_FUA; 9195 if (cdb->byte2 & SWV_DPO) 9196 flags |= CTL_LLF_DPO; 9197 lba = scsi_4btoul(cdb->addr); 9198 num_blocks = scsi_4btoul(cdb->length); 9199 break; 9200 } 9201 case READ_16: 9202 case WRITE_16: { 9203 struct scsi_rw_16 *cdb; 9204 9205 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9206 if (cdb->byte2 & SRW12_FUA) 9207 flags |= CTL_LLF_FUA; 9208 if (cdb->byte2 & SRW12_DPO) 9209 flags |= CTL_LLF_DPO; 9210 lba = scsi_8btou64(cdb->addr); 9211 num_blocks = scsi_4btoul(cdb->length); 9212 break; 9213 } 9214 case WRITE_ATOMIC_16: { 9215 struct scsi_rw_16 *cdb; 9216 9217 if (lun->be_lun->atomicblock == 0) { 9218 ctl_set_invalid_opcode(ctsio); 9219 ctl_done((union ctl_io *)ctsio); 9220 return (CTL_RETVAL_COMPLETE); 9221 } 9222 9223 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9224 if (cdb->byte2 & SRW12_FUA) 9225 flags |= CTL_LLF_FUA; 9226 if (cdb->byte2 & SRW12_DPO) 9227 flags |= CTL_LLF_DPO; 9228 lba = scsi_8btou64(cdb->addr); 9229 num_blocks = scsi_4btoul(cdb->length); 9230 if (num_blocks > lun->be_lun->atomicblock) { 9231 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9232 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9233 /*bit*/ 0); 9234 ctl_done((union ctl_io *)ctsio); 9235 return (CTL_RETVAL_COMPLETE); 9236 } 9237 break; 9238 } 9239 case WRITE_VERIFY_16: { 9240 struct scsi_write_verify_16 *cdb; 9241 9242 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9243 flags |= CTL_LLF_FUA; 9244 if (cdb->byte2 & SWV_DPO) 9245 flags |= CTL_LLF_DPO; 9246 lba = scsi_8btou64(cdb->addr); 9247 num_blocks = scsi_4btoul(cdb->length); 9248 break; 9249 } 9250 default: 9251 /* 9252 * We got a command we don't support. This shouldn't 9253 * happen, commands should be filtered out above us. 9254 */ 9255 ctl_set_invalid_opcode(ctsio); 9256 ctl_done((union ctl_io *)ctsio); 9257 9258 return (CTL_RETVAL_COMPLETE); 9259 break; /* NOTREACHED */ 9260 } 9261 9262 /* 9263 * The first check is to make sure we're in bounds, the second 9264 * check is to catch wrap-around problems. If the lba + num blocks 9265 * is less than the lba, then we've wrapped around and the block 9266 * range is invalid anyway. 9267 */ 9268 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9269 || ((lba + num_blocks) < lba)) { 9270 ctl_set_lba_out_of_range(ctsio); 9271 ctl_done((union ctl_io *)ctsio); 9272 return (CTL_RETVAL_COMPLETE); 9273 } 9274 9275 /* 9276 * According to SBC-3, a transfer length of 0 is not an error. 9277 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9278 * translates to 256 blocks for those commands. 9279 */ 9280 if (num_blocks == 0) { 9281 ctl_set_success(ctsio); 9282 ctl_done((union ctl_io *)ctsio); 9283 return (CTL_RETVAL_COMPLETE); 9284 } 9285 9286 /* Set FUA and/or DPO if caches are disabled. */ 9287 if (isread) { 9288 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9289 SCP_RCD) != 0) 9290 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9291 } else { 9292 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9293 SCP_WCE) == 0) 9294 flags |= CTL_LLF_FUA; 9295 } 9296 9297 lbalen = (struct ctl_lba_len_flags *) 9298 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9299 lbalen->lba = lba; 9300 lbalen->len = num_blocks; 9301 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9302 9303 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9304 ctsio->kern_rel_offset = 0; 9305 9306 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9307 9308 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9309 9310 return (retval); 9311} 9312 9313static int 9314ctl_cnw_cont(union ctl_io *io) 9315{ 9316 struct ctl_scsiio *ctsio; 9317 struct ctl_lun *lun; 9318 struct ctl_lba_len_flags *lbalen; 9319 int retval; 9320 9321 ctsio = &io->scsiio; 9322 ctsio->io_hdr.status = CTL_STATUS_NONE; 9323 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9324 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9325 lbalen = (struct ctl_lba_len_flags *) 9326 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9327 lbalen->flags &= ~CTL_LLF_COMPARE; 9328 lbalen->flags |= CTL_LLF_WRITE; 9329 9330 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9331 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9332 return (retval); 9333} 9334 9335int 9336ctl_cnw(struct ctl_scsiio *ctsio) 9337{ 9338 struct ctl_lun *lun; 9339 struct ctl_lba_len_flags *lbalen; 9340 uint64_t lba; 9341 uint32_t num_blocks; 9342 int flags, retval; 9343 9344 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9345 9346 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9347 9348 flags = 0; 9349 retval = CTL_RETVAL_COMPLETE; 9350 9351 switch (ctsio->cdb[0]) { 9352 case COMPARE_AND_WRITE: { 9353 struct scsi_compare_and_write *cdb; 9354 9355 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9356 if (cdb->byte2 & SRW10_FUA) 9357 flags |= CTL_LLF_FUA; 9358 if (cdb->byte2 & SRW10_DPO) 9359 flags |= CTL_LLF_DPO; 9360 lba = scsi_8btou64(cdb->addr); 9361 num_blocks = cdb->length; 9362 break; 9363 } 9364 default: 9365 /* 9366 * We got a command we don't support. This shouldn't 9367 * happen, commands should be filtered out above us. 9368 */ 9369 ctl_set_invalid_opcode(ctsio); 9370 ctl_done((union ctl_io *)ctsio); 9371 9372 return (CTL_RETVAL_COMPLETE); 9373 break; /* NOTREACHED */ 9374 } 9375 9376 /* 9377 * The first check is to make sure we're in bounds, the second 9378 * check is to catch wrap-around problems. If the lba + num blocks 9379 * is less than the lba, then we've wrapped around and the block 9380 * range is invalid anyway. 9381 */ 9382 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9383 || ((lba + num_blocks) < lba)) { 9384 ctl_set_lba_out_of_range(ctsio); 9385 ctl_done((union ctl_io *)ctsio); 9386 return (CTL_RETVAL_COMPLETE); 9387 } 9388 9389 /* 9390 * According to SBC-3, a transfer length of 0 is not an error. 9391 */ 9392 if (num_blocks == 0) { 9393 ctl_set_success(ctsio); 9394 ctl_done((union ctl_io *)ctsio); 9395 return (CTL_RETVAL_COMPLETE); 9396 } 9397 9398 /* Set FUA if write cache is disabled. */ 9399 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9400 SCP_WCE) == 0) 9401 flags |= CTL_LLF_FUA; 9402 9403 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9404 ctsio->kern_rel_offset = 0; 9405 9406 /* 9407 * Set the IO_CONT flag, so that if this I/O gets passed to 9408 * ctl_data_submit_done(), it'll get passed back to 9409 * ctl_ctl_cnw_cont() for further processing. 9410 */ 9411 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9412 ctsio->io_cont = ctl_cnw_cont; 9413 9414 lbalen = (struct ctl_lba_len_flags *) 9415 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9416 lbalen->lba = lba; 9417 lbalen->len = num_blocks; 9418 lbalen->flags = CTL_LLF_COMPARE | flags; 9419 9420 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9421 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9422 return (retval); 9423} 9424 9425int 9426ctl_verify(struct ctl_scsiio *ctsio) 9427{ 9428 struct ctl_lun *lun; 9429 struct ctl_lba_len_flags *lbalen; 9430 uint64_t lba; 9431 uint32_t num_blocks; 9432 int bytchk, flags; 9433 int retval; 9434 9435 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9436 9437 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9438 9439 bytchk = 0; 9440 flags = CTL_LLF_FUA; 9441 retval = CTL_RETVAL_COMPLETE; 9442 9443 switch (ctsio->cdb[0]) { 9444 case VERIFY_10: { 9445 struct scsi_verify_10 *cdb; 9446 9447 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9448 if (cdb->byte2 & SVFY_BYTCHK) 9449 bytchk = 1; 9450 if (cdb->byte2 & SVFY_DPO) 9451 flags |= CTL_LLF_DPO; 9452 lba = scsi_4btoul(cdb->addr); 9453 num_blocks = scsi_2btoul(cdb->length); 9454 break; 9455 } 9456 case VERIFY_12: { 9457 struct scsi_verify_12 *cdb; 9458 9459 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9460 if (cdb->byte2 & SVFY_BYTCHK) 9461 bytchk = 1; 9462 if (cdb->byte2 & SVFY_DPO) 9463 flags |= CTL_LLF_DPO; 9464 lba = scsi_4btoul(cdb->addr); 9465 num_blocks = scsi_4btoul(cdb->length); 9466 break; 9467 } 9468 case VERIFY_16: { 9469 struct scsi_rw_16 *cdb; 9470 9471 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9472 if (cdb->byte2 & SVFY_BYTCHK) 9473 bytchk = 1; 9474 if (cdb->byte2 & SVFY_DPO) 9475 flags |= CTL_LLF_DPO; 9476 lba = scsi_8btou64(cdb->addr); 9477 num_blocks = scsi_4btoul(cdb->length); 9478 break; 9479 } 9480 default: 9481 /* 9482 * We got a command we don't support. This shouldn't 9483 * happen, commands should be filtered out above us. 9484 */ 9485 ctl_set_invalid_opcode(ctsio); 9486 ctl_done((union ctl_io *)ctsio); 9487 return (CTL_RETVAL_COMPLETE); 9488 } 9489 9490 /* 9491 * The first check is to make sure we're in bounds, the second 9492 * check is to catch wrap-around problems. If the lba + num blocks 9493 * is less than the lba, then we've wrapped around and the block 9494 * range is invalid anyway. 9495 */ 9496 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9497 || ((lba + num_blocks) < lba)) { 9498 ctl_set_lba_out_of_range(ctsio); 9499 ctl_done((union ctl_io *)ctsio); 9500 return (CTL_RETVAL_COMPLETE); 9501 } 9502 9503 /* 9504 * According to SBC-3, a transfer length of 0 is not an error. 9505 */ 9506 if (num_blocks == 0) { 9507 ctl_set_success(ctsio); 9508 ctl_done((union ctl_io *)ctsio); 9509 return (CTL_RETVAL_COMPLETE); 9510 } 9511 9512 lbalen = (struct ctl_lba_len_flags *) 9513 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9514 lbalen->lba = lba; 9515 lbalen->len = num_blocks; 9516 if (bytchk) { 9517 lbalen->flags = CTL_LLF_COMPARE | flags; 9518 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9519 } else { 9520 lbalen->flags = CTL_LLF_VERIFY | flags; 9521 ctsio->kern_total_len = 0; 9522 } 9523 ctsio->kern_rel_offset = 0; 9524 9525 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9526 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9527 return (retval); 9528} 9529 9530int 9531ctl_report_luns(struct ctl_scsiio *ctsio) 9532{ 9533 struct scsi_report_luns *cdb; 9534 struct scsi_report_luns_data *lun_data; 9535 struct ctl_lun *lun, *request_lun; 9536 int num_luns, retval; 9537 uint32_t alloc_len, lun_datalen; 9538 int num_filled, well_known; 9539 uint32_t initidx, targ_lun_id, lun_id; 9540 9541 retval = CTL_RETVAL_COMPLETE; 9542 well_known = 0; 9543 9544 cdb = (struct scsi_report_luns *)ctsio->cdb; 9545 9546 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9547 9548 mtx_lock(&control_softc->ctl_lock); 9549 num_luns = control_softc->num_luns; 9550 mtx_unlock(&control_softc->ctl_lock); 9551 9552 switch (cdb->select_report) { 9553 case RPL_REPORT_DEFAULT: 9554 case RPL_REPORT_ALL: 9555 break; 9556 case RPL_REPORT_WELLKNOWN: 9557 well_known = 1; 9558 num_luns = 0; 9559 break; 9560 default: 9561 ctl_set_invalid_field(ctsio, 9562 /*sks_valid*/ 1, 9563 /*command*/ 1, 9564 /*field*/ 2, 9565 /*bit_valid*/ 0, 9566 /*bit*/ 0); 9567 ctl_done((union ctl_io *)ctsio); 9568 return (retval); 9569 break; /* NOTREACHED */ 9570 } 9571 9572 alloc_len = scsi_4btoul(cdb->length); 9573 /* 9574 * The initiator has to allocate at least 16 bytes for this request, 9575 * so he can at least get the header and the first LUN. Otherwise 9576 * we reject the request (per SPC-3 rev 14, section 6.21). 9577 */ 9578 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9579 sizeof(struct scsi_report_luns_lundata))) { 9580 ctl_set_invalid_field(ctsio, 9581 /*sks_valid*/ 1, 9582 /*command*/ 1, 9583 /*field*/ 6, 9584 /*bit_valid*/ 0, 9585 /*bit*/ 0); 9586 ctl_done((union ctl_io *)ctsio); 9587 return (retval); 9588 } 9589 9590 request_lun = (struct ctl_lun *) 9591 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9592 9593 lun_datalen = sizeof(*lun_data) + 9594 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9595 9596 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9597 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9598 ctsio->kern_sg_entries = 0; 9599 9600 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9601 9602 mtx_lock(&control_softc->ctl_lock); 9603 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9604 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9605 if (lun_id >= CTL_MAX_LUNS) 9606 continue; 9607 lun = control_softc->ctl_luns[lun_id]; 9608 if (lun == NULL) 9609 continue; 9610 9611 if (targ_lun_id <= 0xff) { 9612 /* 9613 * Peripheral addressing method, bus number 0. 9614 */ 9615 lun_data->luns[num_filled].lundata[0] = 9616 RPL_LUNDATA_ATYP_PERIPH; 9617 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9618 num_filled++; 9619 } else if (targ_lun_id <= 0x3fff) { 9620 /* 9621 * Flat addressing method. 9622 */ 9623 lun_data->luns[num_filled].lundata[0] = 9624 RPL_LUNDATA_ATYP_FLAT | 9625 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9626#ifdef OLDCTLHEADERS 9627 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9628 (targ_lun_id & SRLD_BUS_LUN_MASK); 9629#endif 9630 lun_data->luns[num_filled].lundata[1] = 9631#ifdef OLDCTLHEADERS 9632 targ_lun_id >> SRLD_BUS_LUN_BITS; 9633#endif 9634 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9635 num_filled++; 9636 } else { 9637 printf("ctl_report_luns: bogus LUN number %jd, " 9638 "skipping\n", (intmax_t)targ_lun_id); 9639 } 9640 /* 9641 * According to SPC-3, rev 14 section 6.21: 9642 * 9643 * "The execution of a REPORT LUNS command to any valid and 9644 * installed logical unit shall clear the REPORTED LUNS DATA 9645 * HAS CHANGED unit attention condition for all logical 9646 * units of that target with respect to the requesting 9647 * initiator. A valid and installed logical unit is one 9648 * having a PERIPHERAL QUALIFIER of 000b in the standard 9649 * INQUIRY data (see 6.4.2)." 9650 * 9651 * If request_lun is NULL, the LUN this report luns command 9652 * was issued to is either disabled or doesn't exist. In that 9653 * case, we shouldn't clear any pending lun change unit 9654 * attention. 9655 */ 9656 if (request_lun != NULL) { 9657 mtx_lock(&lun->lun_lock); 9658 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9659 mtx_unlock(&lun->lun_lock); 9660 } 9661 } 9662 mtx_unlock(&control_softc->ctl_lock); 9663 9664 /* 9665 * It's quite possible that we've returned fewer LUNs than we allocated 9666 * space for. Trim it. 9667 */ 9668 lun_datalen = sizeof(*lun_data) + 9669 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9670 9671 if (lun_datalen < alloc_len) { 9672 ctsio->residual = alloc_len - lun_datalen; 9673 ctsio->kern_data_len = lun_datalen; 9674 ctsio->kern_total_len = lun_datalen; 9675 } else { 9676 ctsio->residual = 0; 9677 ctsio->kern_data_len = alloc_len; 9678 ctsio->kern_total_len = alloc_len; 9679 } 9680 ctsio->kern_data_resid = 0; 9681 ctsio->kern_rel_offset = 0; 9682 ctsio->kern_sg_entries = 0; 9683 9684 /* 9685 * We set this to the actual data length, regardless of how much 9686 * space we actually have to return results. If the user looks at 9687 * this value, he'll know whether or not he allocated enough space 9688 * and reissue the command if necessary. We don't support well 9689 * known logical units, so if the user asks for that, return none. 9690 */ 9691 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9692 9693 /* 9694 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9695 * this request. 9696 */ 9697 ctsio->scsi_status = SCSI_STATUS_OK; 9698 9699 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9700 ctsio->be_move_done = ctl_config_move_done; 9701 ctl_datamove((union ctl_io *)ctsio); 9702 9703 return (retval); 9704} 9705 9706int 9707ctl_request_sense(struct ctl_scsiio *ctsio) 9708{ 9709 struct scsi_request_sense *cdb; 9710 struct scsi_sense_data *sense_ptr; 9711 struct ctl_lun *lun; 9712 uint32_t initidx; 9713 int have_error; 9714 scsi_sense_data_type sense_format; 9715 9716 cdb = (struct scsi_request_sense *)ctsio->cdb; 9717 9718 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9719 9720 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9721 9722 /* 9723 * Determine which sense format the user wants. 9724 */ 9725 if (cdb->byte2 & SRS_DESC) 9726 sense_format = SSD_TYPE_DESC; 9727 else 9728 sense_format = SSD_TYPE_FIXED; 9729 9730 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9731 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9732 ctsio->kern_sg_entries = 0; 9733 9734 /* 9735 * struct scsi_sense_data, which is currently set to 256 bytes, is 9736 * larger than the largest allowed value for the length field in the 9737 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9738 */ 9739 ctsio->residual = 0; 9740 ctsio->kern_data_len = cdb->length; 9741 ctsio->kern_total_len = cdb->length; 9742 9743 ctsio->kern_data_resid = 0; 9744 ctsio->kern_rel_offset = 0; 9745 ctsio->kern_sg_entries = 0; 9746 9747 /* 9748 * If we don't have a LUN, we don't have any pending sense. 9749 */ 9750 if (lun == NULL) 9751 goto no_sense; 9752 9753 have_error = 0; 9754 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9755 /* 9756 * Check for pending sense, and then for pending unit attentions. 9757 * Pending sense gets returned first, then pending unit attentions. 9758 */ 9759 mtx_lock(&lun->lun_lock); 9760#ifdef CTL_WITH_CA 9761 if (ctl_is_set(lun->have_ca, initidx)) { 9762 scsi_sense_data_type stored_format; 9763 9764 /* 9765 * Check to see which sense format was used for the stored 9766 * sense data. 9767 */ 9768 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9769 9770 /* 9771 * If the user requested a different sense format than the 9772 * one we stored, then we need to convert it to the other 9773 * format. If we're going from descriptor to fixed format 9774 * sense data, we may lose things in translation, depending 9775 * on what options were used. 9776 * 9777 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9778 * for some reason we'll just copy it out as-is. 9779 */ 9780 if ((stored_format == SSD_TYPE_FIXED) 9781 && (sense_format == SSD_TYPE_DESC)) 9782 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9783 &lun->pending_sense[initidx], 9784 (struct scsi_sense_data_desc *)sense_ptr); 9785 else if ((stored_format == SSD_TYPE_DESC) 9786 && (sense_format == SSD_TYPE_FIXED)) 9787 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9788 &lun->pending_sense[initidx], 9789 (struct scsi_sense_data_fixed *)sense_ptr); 9790 else 9791 memcpy(sense_ptr, &lun->pending_sense[initidx], 9792 ctl_min(sizeof(*sense_ptr), 9793 sizeof(lun->pending_sense[initidx]))); 9794 9795 ctl_clear_mask(lun->have_ca, initidx); 9796 have_error = 1; 9797 } else 9798#endif 9799 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9800 ctl_ua_type ua_type; 9801 9802 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9803 sense_ptr, sense_format); 9804 if (ua_type != CTL_UA_NONE) 9805 have_error = 1; 9806 } 9807 mtx_unlock(&lun->lun_lock); 9808 9809 /* 9810 * We already have a pending error, return it. 9811 */ 9812 if (have_error != 0) { 9813 /* 9814 * We report the SCSI status as OK, since the status of the 9815 * request sense command itself is OK. 9816 */ 9817 ctsio->scsi_status = SCSI_STATUS_OK; 9818 9819 /* 9820 * We report 0 for the sense length, because we aren't doing 9821 * autosense in this case. We're reporting sense as 9822 * parameter data. 9823 */ 9824 ctsio->sense_len = 0; 9825 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9826 ctsio->be_move_done = ctl_config_move_done; 9827 ctl_datamove((union ctl_io *)ctsio); 9828 9829 return (CTL_RETVAL_COMPLETE); 9830 } 9831 9832no_sense: 9833 9834 /* 9835 * No sense information to report, so we report that everything is 9836 * okay. 9837 */ 9838 ctl_set_sense_data(sense_ptr, 9839 lun, 9840 sense_format, 9841 /*current_error*/ 1, 9842 /*sense_key*/ SSD_KEY_NO_SENSE, 9843 /*asc*/ 0x00, 9844 /*ascq*/ 0x00, 9845 SSD_ELEM_NONE); 9846 9847 ctsio->scsi_status = SCSI_STATUS_OK; 9848 9849 /* 9850 * We report 0 for the sense length, because we aren't doing 9851 * autosense in this case. We're reporting sense as parameter data. 9852 */ 9853 ctsio->sense_len = 0; 9854 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9855 ctsio->be_move_done = ctl_config_move_done; 9856 ctl_datamove((union ctl_io *)ctsio); 9857 9858 return (CTL_RETVAL_COMPLETE); 9859} 9860 9861int 9862ctl_tur(struct ctl_scsiio *ctsio) 9863{ 9864 struct ctl_lun *lun; 9865 9866 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9867 9868 CTL_DEBUG_PRINT(("ctl_tur\n")); 9869 9870 if (lun == NULL) 9871 return (EINVAL); 9872 9873 ctsio->scsi_status = SCSI_STATUS_OK; 9874 ctsio->io_hdr.status = CTL_SUCCESS; 9875 9876 ctl_done((union ctl_io *)ctsio); 9877 9878 return (CTL_RETVAL_COMPLETE); 9879} 9880 9881#ifdef notyet 9882static int 9883ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9884{ 9885 9886} 9887#endif 9888 9889static int 9890ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9891{ 9892 struct scsi_vpd_supported_pages *pages; 9893 int sup_page_size; 9894 struct ctl_lun *lun; 9895 9896 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9897 9898 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9899 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9900 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9901 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9902 ctsio->kern_sg_entries = 0; 9903 9904 if (sup_page_size < alloc_len) { 9905 ctsio->residual = alloc_len - sup_page_size; 9906 ctsio->kern_data_len = sup_page_size; 9907 ctsio->kern_total_len = sup_page_size; 9908 } else { 9909 ctsio->residual = 0; 9910 ctsio->kern_data_len = alloc_len; 9911 ctsio->kern_total_len = alloc_len; 9912 } 9913 ctsio->kern_data_resid = 0; 9914 ctsio->kern_rel_offset = 0; 9915 ctsio->kern_sg_entries = 0; 9916 9917 /* 9918 * The control device is always connected. The disk device, on the 9919 * other hand, may not be online all the time. Need to change this 9920 * to figure out whether the disk device is actually online or not. 9921 */ 9922 if (lun != NULL) 9923 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9924 lun->be_lun->lun_type; 9925 else 9926 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9927 9928 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9929 /* Supported VPD pages */ 9930 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9931 /* Serial Number */ 9932 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9933 /* Device Identification */ 9934 pages->page_list[2] = SVPD_DEVICE_ID; 9935 /* Extended INQUIRY Data */ 9936 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9937 /* Mode Page Policy */ 9938 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9939 /* SCSI Ports */ 9940 pages->page_list[5] = SVPD_SCSI_PORTS; 9941 /* Third-party Copy */ 9942 pages->page_list[6] = SVPD_SCSI_TPC; 9943 /* Block limits */ 9944 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9945 /* Block Device Characteristics */ 9946 pages->page_list[8] = SVPD_BDC; 9947 /* Logical Block Provisioning */ 9948 pages->page_list[9] = SVPD_LBP; 9949 9950 ctsio->scsi_status = SCSI_STATUS_OK; 9951 9952 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9953 ctsio->be_move_done = ctl_config_move_done; 9954 ctl_datamove((union ctl_io *)ctsio); 9955 9956 return (CTL_RETVAL_COMPLETE); 9957} 9958 9959static int 9960ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9961{ 9962 struct scsi_vpd_unit_serial_number *sn_ptr; 9963 struct ctl_lun *lun; 9964 9965 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9966 9967 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9968 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9969 ctsio->kern_sg_entries = 0; 9970 9971 if (sizeof(*sn_ptr) < alloc_len) { 9972 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9973 ctsio->kern_data_len = sizeof(*sn_ptr); 9974 ctsio->kern_total_len = sizeof(*sn_ptr); 9975 } else { 9976 ctsio->residual = 0; 9977 ctsio->kern_data_len = alloc_len; 9978 ctsio->kern_total_len = alloc_len; 9979 } 9980 ctsio->kern_data_resid = 0; 9981 ctsio->kern_rel_offset = 0; 9982 ctsio->kern_sg_entries = 0; 9983 9984 /* 9985 * The control device is always connected. The disk device, on the 9986 * other hand, may not be online all the time. Need to change this 9987 * to figure out whether the disk device is actually online or not. 9988 */ 9989 if (lun != NULL) 9990 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9991 lun->be_lun->lun_type; 9992 else 9993 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9994 9995 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9996 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9997 /* 9998 * If we don't have a LUN, we just leave the serial number as 9999 * all spaces. 10000 */ 10001 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 10002 if (lun != NULL) { 10003 strncpy((char *)sn_ptr->serial_num, 10004 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 10005 } 10006 ctsio->scsi_status = SCSI_STATUS_OK; 10007 10008 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10009 ctsio->be_move_done = ctl_config_move_done; 10010 ctl_datamove((union ctl_io *)ctsio); 10011 10012 return (CTL_RETVAL_COMPLETE); 10013} 10014 10015 10016static int 10017ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 10018{ 10019 struct scsi_vpd_extended_inquiry_data *eid_ptr; 10020 struct ctl_lun *lun; 10021 int data_len; 10022 10023 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10024 10025 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 10026 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10027 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 10028 ctsio->kern_sg_entries = 0; 10029 10030 if (data_len < alloc_len) { 10031 ctsio->residual = alloc_len - data_len; 10032 ctsio->kern_data_len = data_len; 10033 ctsio->kern_total_len = data_len; 10034 } else { 10035 ctsio->residual = 0; 10036 ctsio->kern_data_len = alloc_len; 10037 ctsio->kern_total_len = alloc_len; 10038 } 10039 ctsio->kern_data_resid = 0; 10040 ctsio->kern_rel_offset = 0; 10041 ctsio->kern_sg_entries = 0; 10042 10043 /* 10044 * The control device is always connected. The disk device, on the 10045 * other hand, may not be online all the time. 10046 */ 10047 if (lun != NULL) 10048 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10049 lun->be_lun->lun_type; 10050 else 10051 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10052 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 10053 eid_ptr->page_length = data_len - 4; 10054 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 10055 eid_ptr->flags3 = SVPD_EID_V_SUP; 10056 10057 ctsio->scsi_status = SCSI_STATUS_OK; 10058 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10059 ctsio->be_move_done = ctl_config_move_done; 10060 ctl_datamove((union ctl_io *)ctsio); 10061 10062 return (CTL_RETVAL_COMPLETE); 10063} 10064 10065static int 10066ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 10067{ 10068 struct scsi_vpd_mode_page_policy *mpp_ptr; 10069 struct ctl_lun *lun; 10070 int data_len; 10071 10072 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10073 10074 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 10075 sizeof(struct scsi_vpd_mode_page_policy_descr); 10076 10077 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10078 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 10079 ctsio->kern_sg_entries = 0; 10080 10081 if (data_len < alloc_len) { 10082 ctsio->residual = alloc_len - data_len; 10083 ctsio->kern_data_len = data_len; 10084 ctsio->kern_total_len = data_len; 10085 } else { 10086 ctsio->residual = 0; 10087 ctsio->kern_data_len = alloc_len; 10088 ctsio->kern_total_len = alloc_len; 10089 } 10090 ctsio->kern_data_resid = 0; 10091 ctsio->kern_rel_offset = 0; 10092 ctsio->kern_sg_entries = 0; 10093 10094 /* 10095 * The control device is always connected. The disk device, on the 10096 * other hand, may not be online all the time. 10097 */ 10098 if (lun != NULL) 10099 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10100 lun->be_lun->lun_type; 10101 else 10102 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10103 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 10104 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 10105 mpp_ptr->descr[0].page_code = 0x3f; 10106 mpp_ptr->descr[0].subpage_code = 0xff; 10107 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10108 10109 ctsio->scsi_status = SCSI_STATUS_OK; 10110 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10111 ctsio->be_move_done = ctl_config_move_done; 10112 ctl_datamove((union ctl_io *)ctsio); 10113 10114 return (CTL_RETVAL_COMPLETE); 10115} 10116 10117static int 10118ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10119{ 10120 struct scsi_vpd_device_id *devid_ptr; 10121 struct scsi_vpd_id_descriptor *desc; 10122 struct ctl_softc *ctl_softc; 10123 struct ctl_lun *lun; 10124 struct ctl_port *port; 10125 int data_len; 10126 uint8_t proto; 10127 10128 ctl_softc = control_softc; 10129 10130 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10131 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10132 10133 data_len = sizeof(struct scsi_vpd_device_id) + 10134 sizeof(struct scsi_vpd_id_descriptor) + 10135 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10136 sizeof(struct scsi_vpd_id_descriptor) + 10137 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10138 if (lun && lun->lun_devid) 10139 data_len += lun->lun_devid->len; 10140 if (port->port_devid) 10141 data_len += port->port_devid->len; 10142 if (port->target_devid) 10143 data_len += port->target_devid->len; 10144 10145 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10146 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10147 ctsio->kern_sg_entries = 0; 10148 10149 if (data_len < alloc_len) { 10150 ctsio->residual = alloc_len - data_len; 10151 ctsio->kern_data_len = data_len; 10152 ctsio->kern_total_len = data_len; 10153 } else { 10154 ctsio->residual = 0; 10155 ctsio->kern_data_len = alloc_len; 10156 ctsio->kern_total_len = alloc_len; 10157 } 10158 ctsio->kern_data_resid = 0; 10159 ctsio->kern_rel_offset = 0; 10160 ctsio->kern_sg_entries = 0; 10161 10162 /* 10163 * The control device is always connected. The disk device, on the 10164 * other hand, may not be online all the time. 10165 */ 10166 if (lun != NULL) 10167 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10168 lun->be_lun->lun_type; 10169 else 10170 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10171 devid_ptr->page_code = SVPD_DEVICE_ID; 10172 scsi_ulto2b(data_len - 4, devid_ptr->length); 10173 10174 if (port->port_type == CTL_PORT_FC) 10175 proto = SCSI_PROTO_FC << 4; 10176 else if (port->port_type == CTL_PORT_ISCSI) 10177 proto = SCSI_PROTO_ISCSI << 4; 10178 else 10179 proto = SCSI_PROTO_SPI << 4; 10180 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10181 10182 /* 10183 * We're using a LUN association here. i.e., this device ID is a 10184 * per-LUN identifier. 10185 */ 10186 if (lun && lun->lun_devid) { 10187 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10188 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10189 lun->lun_devid->len); 10190 } 10191 10192 /* 10193 * This is for the WWPN which is a port association. 10194 */ 10195 if (port->port_devid) { 10196 memcpy(desc, port->port_devid->data, port->port_devid->len); 10197 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10198 port->port_devid->len); 10199 } 10200 10201 /* 10202 * This is for the Relative Target Port(type 4h) identifier 10203 */ 10204 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10205 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10206 SVPD_ID_TYPE_RELTARG; 10207 desc->length = 4; 10208 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10209 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10210 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10211 10212 /* 10213 * This is for the Target Port Group(type 5h) identifier 10214 */ 10215 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10216 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10217 SVPD_ID_TYPE_TPORTGRP; 10218 desc->length = 4; 10219 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10220 &desc->identifier[2]); 10221 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10222 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10223 10224 /* 10225 * This is for the Target identifier 10226 */ 10227 if (port->target_devid) { 10228 memcpy(desc, port->target_devid->data, port->target_devid->len); 10229 } 10230 10231 ctsio->scsi_status = SCSI_STATUS_OK; 10232 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10233 ctsio->be_move_done = ctl_config_move_done; 10234 ctl_datamove((union ctl_io *)ctsio); 10235 10236 return (CTL_RETVAL_COMPLETE); 10237} 10238 10239static int 10240ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10241{ 10242 struct ctl_softc *softc = control_softc; 10243 struct scsi_vpd_scsi_ports *sp; 10244 struct scsi_vpd_port_designation *pd; 10245 struct scsi_vpd_port_designation_cont *pdc; 10246 struct ctl_lun *lun; 10247 struct ctl_port *port; 10248 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10249 int num_target_port_groups, single; 10250 10251 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10252 10253 single = ctl_is_single; 10254 if (single) 10255 num_target_port_groups = 1; 10256 else 10257 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10258 num_target_ports = 0; 10259 iid_len = 0; 10260 id_len = 0; 10261 mtx_lock(&softc->ctl_lock); 10262 STAILQ_FOREACH(port, &softc->port_list, links) { 10263 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10264 continue; 10265 if (lun != NULL && 10266 ctl_map_lun_back(port->targ_port, lun->lun) >= 10267 CTL_MAX_LUNS) 10268 continue; 10269 num_target_ports++; 10270 if (port->init_devid) 10271 iid_len += port->init_devid->len; 10272 if (port->port_devid) 10273 id_len += port->port_devid->len; 10274 } 10275 mtx_unlock(&softc->ctl_lock); 10276 10277 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10278 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10279 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10280 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10281 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10282 ctsio->kern_sg_entries = 0; 10283 10284 if (data_len < alloc_len) { 10285 ctsio->residual = alloc_len - data_len; 10286 ctsio->kern_data_len = data_len; 10287 ctsio->kern_total_len = data_len; 10288 } else { 10289 ctsio->residual = 0; 10290 ctsio->kern_data_len = alloc_len; 10291 ctsio->kern_total_len = alloc_len; 10292 } 10293 ctsio->kern_data_resid = 0; 10294 ctsio->kern_rel_offset = 0; 10295 ctsio->kern_sg_entries = 0; 10296 10297 /* 10298 * The control device is always connected. The disk device, on the 10299 * other hand, may not be online all the time. Need to change this 10300 * to figure out whether the disk device is actually online or not. 10301 */ 10302 if (lun != NULL) 10303 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10304 lun->be_lun->lun_type; 10305 else 10306 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10307 10308 sp->page_code = SVPD_SCSI_PORTS; 10309 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10310 sp->page_length); 10311 pd = &sp->design[0]; 10312 10313 mtx_lock(&softc->ctl_lock); 10314 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10315 pg = 0; 10316 else 10317 pg = 1; 10318 for (g = 0; g < num_target_port_groups; g++) { 10319 STAILQ_FOREACH(port, &softc->port_list, links) { 10320 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10321 continue; 10322 if (lun != NULL && 10323 ctl_map_lun_back(port->targ_port, lun->lun) >= 10324 CTL_MAX_LUNS) 10325 continue; 10326 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10327 scsi_ulto2b(p, pd->relative_port_id); 10328 if (port->init_devid && g == pg) { 10329 iid_len = port->init_devid->len; 10330 memcpy(pd->initiator_transportid, 10331 port->init_devid->data, port->init_devid->len); 10332 } else 10333 iid_len = 0; 10334 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10335 pdc = (struct scsi_vpd_port_designation_cont *) 10336 (&pd->initiator_transportid[iid_len]); 10337 if (port->port_devid && g == pg) { 10338 id_len = port->port_devid->len; 10339 memcpy(pdc->target_port_descriptors, 10340 port->port_devid->data, port->port_devid->len); 10341 } else 10342 id_len = 0; 10343 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10344 pd = (struct scsi_vpd_port_designation *) 10345 ((uint8_t *)pdc->target_port_descriptors + id_len); 10346 } 10347 } 10348 mtx_unlock(&softc->ctl_lock); 10349 10350 ctsio->scsi_status = SCSI_STATUS_OK; 10351 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10352 ctsio->be_move_done = ctl_config_move_done; 10353 ctl_datamove((union ctl_io *)ctsio); 10354 10355 return (CTL_RETVAL_COMPLETE); 10356} 10357 10358static int 10359ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10360{ 10361 struct scsi_vpd_block_limits *bl_ptr; 10362 struct ctl_lun *lun; 10363 int bs; 10364 10365 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10366 10367 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10368 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10369 ctsio->kern_sg_entries = 0; 10370 10371 if (sizeof(*bl_ptr) < alloc_len) { 10372 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10373 ctsio->kern_data_len = sizeof(*bl_ptr); 10374 ctsio->kern_total_len = sizeof(*bl_ptr); 10375 } else { 10376 ctsio->residual = 0; 10377 ctsio->kern_data_len = alloc_len; 10378 ctsio->kern_total_len = alloc_len; 10379 } 10380 ctsio->kern_data_resid = 0; 10381 ctsio->kern_rel_offset = 0; 10382 ctsio->kern_sg_entries = 0; 10383 10384 /* 10385 * The control device is always connected. The disk device, on the 10386 * other hand, may not be online all the time. Need to change this 10387 * to figure out whether the disk device is actually online or not. 10388 */ 10389 if (lun != NULL) 10390 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10391 lun->be_lun->lun_type; 10392 else 10393 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10394 10395 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10396 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10397 bl_ptr->max_cmp_write_len = 0xff; 10398 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10399 if (lun != NULL) { 10400 bs = lun->be_lun->blocksize; 10401 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10402 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10403 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10404 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10405 if (lun->be_lun->pblockexp != 0) { 10406 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10407 bl_ptr->opt_unmap_grain); 10408 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10409 bl_ptr->unmap_grain_align); 10410 } 10411 } 10412 scsi_ulto4b(lun->be_lun->atomicblock, 10413 bl_ptr->max_atomic_transfer_length); 10414 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10415 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10416 } 10417 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10418 10419 ctsio->scsi_status = SCSI_STATUS_OK; 10420 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10421 ctsio->be_move_done = ctl_config_move_done; 10422 ctl_datamove((union ctl_io *)ctsio); 10423 10424 return (CTL_RETVAL_COMPLETE); 10425} 10426 10427static int 10428ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10429{ 10430 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10431 struct ctl_lun *lun; 10432 10433 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10434 10435 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10436 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10437 ctsio->kern_sg_entries = 0; 10438 10439 if (sizeof(*bdc_ptr) < alloc_len) { 10440 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10441 ctsio->kern_data_len = sizeof(*bdc_ptr); 10442 ctsio->kern_total_len = sizeof(*bdc_ptr); 10443 } else { 10444 ctsio->residual = 0; 10445 ctsio->kern_data_len = alloc_len; 10446 ctsio->kern_total_len = alloc_len; 10447 } 10448 ctsio->kern_data_resid = 0; 10449 ctsio->kern_rel_offset = 0; 10450 ctsio->kern_sg_entries = 0; 10451 10452 /* 10453 * The control device is always connected. The disk device, on the 10454 * other hand, may not be online all the time. Need to change this 10455 * to figure out whether the disk device is actually online or not. 10456 */ 10457 if (lun != NULL) 10458 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10459 lun->be_lun->lun_type; 10460 else 10461 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10462 bdc_ptr->page_code = SVPD_BDC; 10463 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10464 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10465 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10466 10467 ctsio->scsi_status = SCSI_STATUS_OK; 10468 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10469 ctsio->be_move_done = ctl_config_move_done; 10470 ctl_datamove((union ctl_io *)ctsio); 10471 10472 return (CTL_RETVAL_COMPLETE); 10473} 10474 10475static int 10476ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10477{ 10478 struct scsi_vpd_logical_block_prov *lbp_ptr; 10479 struct ctl_lun *lun; 10480 10481 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10482 10483 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10484 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10485 ctsio->kern_sg_entries = 0; 10486 10487 if (sizeof(*lbp_ptr) < alloc_len) { 10488 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10489 ctsio->kern_data_len = sizeof(*lbp_ptr); 10490 ctsio->kern_total_len = sizeof(*lbp_ptr); 10491 } else { 10492 ctsio->residual = 0; 10493 ctsio->kern_data_len = alloc_len; 10494 ctsio->kern_total_len = alloc_len; 10495 } 10496 ctsio->kern_data_resid = 0; 10497 ctsio->kern_rel_offset = 0; 10498 ctsio->kern_sg_entries = 0; 10499 10500 /* 10501 * The control device is always connected. The disk device, on the 10502 * other hand, may not be online all the time. Need to change this 10503 * to figure out whether the disk device is actually online or not. 10504 */ 10505 if (lun != NULL) 10506 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10507 lun->be_lun->lun_type; 10508 else 10509 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10510 10511 lbp_ptr->page_code = SVPD_LBP; 10512 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10513 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10514 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10515 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10516 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10517 } 10518 10519 ctsio->scsi_status = SCSI_STATUS_OK; 10520 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10521 ctsio->be_move_done = ctl_config_move_done; 10522 ctl_datamove((union ctl_io *)ctsio); 10523 10524 return (CTL_RETVAL_COMPLETE); 10525} 10526 10527static int 10528ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10529{ 10530 struct scsi_inquiry *cdb; 10531 struct ctl_lun *lun; 10532 int alloc_len, retval; 10533 10534 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10535 cdb = (struct scsi_inquiry *)ctsio->cdb; 10536 10537 retval = CTL_RETVAL_COMPLETE; 10538 10539 alloc_len = scsi_2btoul(cdb->length); 10540 10541 switch (cdb->page_code) { 10542 case SVPD_SUPPORTED_PAGES: 10543 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10544 break; 10545 case SVPD_UNIT_SERIAL_NUMBER: 10546 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10547 break; 10548 case SVPD_DEVICE_ID: 10549 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10550 break; 10551 case SVPD_EXTENDED_INQUIRY_DATA: 10552 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10553 break; 10554 case SVPD_MODE_PAGE_POLICY: 10555 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10556 break; 10557 case SVPD_SCSI_PORTS: 10558 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10559 break; 10560 case SVPD_SCSI_TPC: 10561 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10562 break; 10563 case SVPD_BLOCK_LIMITS: 10564 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10565 break; 10566 case SVPD_BDC: 10567 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10568 break; 10569 case SVPD_LBP: 10570 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10571 break; 10572 default: 10573 ctl_set_invalid_field(ctsio, 10574 /*sks_valid*/ 1, 10575 /*command*/ 1, 10576 /*field*/ 2, 10577 /*bit_valid*/ 0, 10578 /*bit*/ 0); 10579 ctl_done((union ctl_io *)ctsio); 10580 retval = CTL_RETVAL_COMPLETE; 10581 break; 10582 } 10583 10584 return (retval); 10585} 10586 10587static int 10588ctl_inquiry_std(struct ctl_scsiio *ctsio) 10589{ 10590 struct scsi_inquiry_data *inq_ptr; 10591 struct scsi_inquiry *cdb; 10592 struct ctl_softc *ctl_softc; 10593 struct ctl_lun *lun; 10594 char *val; 10595 uint32_t alloc_len, data_len; 10596 ctl_port_type port_type; 10597 10598 ctl_softc = control_softc; 10599 10600 /* 10601 * Figure out whether we're talking to a Fibre Channel port or not. 10602 * We treat the ioctl front end, and any SCSI adapters, as packetized 10603 * SCSI front ends. 10604 */ 10605 port_type = ctl_softc->ctl_ports[ 10606 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10607 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10608 port_type = CTL_PORT_SCSI; 10609 10610 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10611 cdb = (struct scsi_inquiry *)ctsio->cdb; 10612 alloc_len = scsi_2btoul(cdb->length); 10613 10614 /* 10615 * We malloc the full inquiry data size here and fill it 10616 * in. If the user only asks for less, we'll give him 10617 * that much. 10618 */ 10619 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10620 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10621 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10622 ctsio->kern_sg_entries = 0; 10623 ctsio->kern_data_resid = 0; 10624 ctsio->kern_rel_offset = 0; 10625 10626 if (data_len < alloc_len) { 10627 ctsio->residual = alloc_len - data_len; 10628 ctsio->kern_data_len = data_len; 10629 ctsio->kern_total_len = data_len; 10630 } else { 10631 ctsio->residual = 0; 10632 ctsio->kern_data_len = alloc_len; 10633 ctsio->kern_total_len = alloc_len; 10634 } 10635 10636 /* 10637 * If we have a LUN configured, report it as connected. Otherwise, 10638 * report that it is offline or no device is supported, depending 10639 * on the value of inquiry_pq_no_lun. 10640 * 10641 * According to the spec (SPC-4 r34), the peripheral qualifier 10642 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10643 * 10644 * "A peripheral device having the specified peripheral device type 10645 * is not connected to this logical unit. However, the device 10646 * server is capable of supporting the specified peripheral device 10647 * type on this logical unit." 10648 * 10649 * According to the same spec, the peripheral qualifier 10650 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10651 * 10652 * "The device server is not capable of supporting a peripheral 10653 * device on this logical unit. For this peripheral qualifier the 10654 * peripheral device type shall be set to 1Fh. All other peripheral 10655 * device type values are reserved for this peripheral qualifier." 10656 * 10657 * Given the text, it would seem that we probably want to report that 10658 * the LUN is offline here. There is no LUN connected, but we can 10659 * support a LUN at the given LUN number. 10660 * 10661 * In the real world, though, it sounds like things are a little 10662 * different: 10663 * 10664 * - Linux, when presented with a LUN with the offline peripheral 10665 * qualifier, will create an sg driver instance for it. So when 10666 * you attach it to CTL, you wind up with a ton of sg driver 10667 * instances. (One for every LUN that Linux bothered to probe.) 10668 * Linux does this despite the fact that it issues a REPORT LUNs 10669 * to LUN 0 to get the inventory of supported LUNs. 10670 * 10671 * - There is other anecdotal evidence (from Emulex folks) about 10672 * arrays that use the offline peripheral qualifier for LUNs that 10673 * are on the "passive" path in an active/passive array. 10674 * 10675 * So the solution is provide a hopefully reasonable default 10676 * (return bad/no LUN) and allow the user to change the behavior 10677 * with a tunable/sysctl variable. 10678 */ 10679 if (lun != NULL) 10680 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10681 lun->be_lun->lun_type; 10682 else if (ctl_softc->inquiry_pq_no_lun == 0) 10683 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10684 else 10685 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10686 10687 /* RMB in byte 2 is 0 */ 10688 inq_ptr->version = SCSI_REV_SPC4; 10689 10690 /* 10691 * According to SAM-3, even if a device only supports a single 10692 * level of LUN addressing, it should still set the HISUP bit: 10693 * 10694 * 4.9.1 Logical unit numbers overview 10695 * 10696 * All logical unit number formats described in this standard are 10697 * hierarchical in structure even when only a single level in that 10698 * hierarchy is used. The HISUP bit shall be set to one in the 10699 * standard INQUIRY data (see SPC-2) when any logical unit number 10700 * format described in this standard is used. Non-hierarchical 10701 * formats are outside the scope of this standard. 10702 * 10703 * Therefore we set the HiSup bit here. 10704 * 10705 * The reponse format is 2, per SPC-3. 10706 */ 10707 inq_ptr->response_format = SID_HiSup | 2; 10708 10709 inq_ptr->additional_length = data_len - 10710 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10711 CTL_DEBUG_PRINT(("additional_length = %d\n", 10712 inq_ptr->additional_length)); 10713 10714 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10715 /* 16 bit addressing */ 10716 if (port_type == CTL_PORT_SCSI) 10717 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10718 /* XXX set the SID_MultiP bit here if we're actually going to 10719 respond on multiple ports */ 10720 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10721 10722 /* 16 bit data bus, synchronous transfers */ 10723 if (port_type == CTL_PORT_SCSI) 10724 inq_ptr->flags = SID_WBus16 | SID_Sync; 10725 /* 10726 * XXX KDM do we want to support tagged queueing on the control 10727 * device at all? 10728 */ 10729 if ((lun == NULL) 10730 || (lun->be_lun->lun_type != T_PROCESSOR)) 10731 inq_ptr->flags |= SID_CmdQue; 10732 /* 10733 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10734 * We have 8 bytes for the vendor name, and 16 bytes for the device 10735 * name and 4 bytes for the revision. 10736 */ 10737 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10738 "vendor")) == NULL) { 10739 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10740 } else { 10741 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10742 strncpy(inq_ptr->vendor, val, 10743 min(sizeof(inq_ptr->vendor), strlen(val))); 10744 } 10745 if (lun == NULL) { 10746 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10747 sizeof(inq_ptr->product)); 10748 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10749 switch (lun->be_lun->lun_type) { 10750 case T_DIRECT: 10751 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10752 sizeof(inq_ptr->product)); 10753 break; 10754 case T_PROCESSOR: 10755 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10756 sizeof(inq_ptr->product)); 10757 break; 10758 default: 10759 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10760 sizeof(inq_ptr->product)); 10761 break; 10762 } 10763 } else { 10764 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10765 strncpy(inq_ptr->product, val, 10766 min(sizeof(inq_ptr->product), strlen(val))); 10767 } 10768 10769 /* 10770 * XXX make this a macro somewhere so it automatically gets 10771 * incremented when we make changes. 10772 */ 10773 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10774 "revision")) == NULL) { 10775 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10776 } else { 10777 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10778 strncpy(inq_ptr->revision, val, 10779 min(sizeof(inq_ptr->revision), strlen(val))); 10780 } 10781 10782 /* 10783 * For parallel SCSI, we support double transition and single 10784 * transition clocking. We also support QAS (Quick Arbitration 10785 * and Selection) and Information Unit transfers on both the 10786 * control and array devices. 10787 */ 10788 if (port_type == CTL_PORT_SCSI) 10789 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10790 SID_SPI_IUS; 10791 10792 /* SAM-5 (no version claimed) */ 10793 scsi_ulto2b(0x00A0, inq_ptr->version1); 10794 /* SPC-4 (no version claimed) */ 10795 scsi_ulto2b(0x0460, inq_ptr->version2); 10796 if (port_type == CTL_PORT_FC) { 10797 /* FCP-2 ANSI INCITS.350:2003 */ 10798 scsi_ulto2b(0x0917, inq_ptr->version3); 10799 } else if (port_type == CTL_PORT_SCSI) { 10800 /* SPI-4 ANSI INCITS.362:200x */ 10801 scsi_ulto2b(0x0B56, inq_ptr->version3); 10802 } else if (port_type == CTL_PORT_ISCSI) { 10803 /* iSCSI (no version claimed) */ 10804 scsi_ulto2b(0x0960, inq_ptr->version3); 10805 } else if (port_type == CTL_PORT_SAS) { 10806 /* SAS (no version claimed) */ 10807 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10808 } 10809 10810 if (lun == NULL) { 10811 /* SBC-4 (no version claimed) */ 10812 scsi_ulto2b(0x0600, inq_ptr->version4); 10813 } else { 10814 switch (lun->be_lun->lun_type) { 10815 case T_DIRECT: 10816 /* SBC-4 (no version claimed) */ 10817 scsi_ulto2b(0x0600, inq_ptr->version4); 10818 break; 10819 case T_PROCESSOR: 10820 default: 10821 break; 10822 } 10823 } 10824 10825 ctsio->scsi_status = SCSI_STATUS_OK; 10826 if (ctsio->kern_data_len > 0) { 10827 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10828 ctsio->be_move_done = ctl_config_move_done; 10829 ctl_datamove((union ctl_io *)ctsio); 10830 } else { 10831 ctsio->io_hdr.status = CTL_SUCCESS; 10832 ctl_done((union ctl_io *)ctsio); 10833 } 10834 10835 return (CTL_RETVAL_COMPLETE); 10836} 10837 10838int 10839ctl_inquiry(struct ctl_scsiio *ctsio) 10840{ 10841 struct scsi_inquiry *cdb; 10842 int retval; 10843 10844 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10845 10846 cdb = (struct scsi_inquiry *)ctsio->cdb; 10847 if (cdb->byte2 & SI_EVPD) 10848 retval = ctl_inquiry_evpd(ctsio); 10849 else if (cdb->page_code == 0) 10850 retval = ctl_inquiry_std(ctsio); 10851 else { 10852 ctl_set_invalid_field(ctsio, 10853 /*sks_valid*/ 1, 10854 /*command*/ 1, 10855 /*field*/ 2, 10856 /*bit_valid*/ 0, 10857 /*bit*/ 0); 10858 ctl_done((union ctl_io *)ctsio); 10859 return (CTL_RETVAL_COMPLETE); 10860 } 10861 10862 return (retval); 10863} 10864 10865/* 10866 * For known CDB types, parse the LBA and length. 10867 */ 10868static int 10869ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10870{ 10871 if (io->io_hdr.io_type != CTL_IO_SCSI) 10872 return (1); 10873 10874 switch (io->scsiio.cdb[0]) { 10875 case COMPARE_AND_WRITE: { 10876 struct scsi_compare_and_write *cdb; 10877 10878 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10879 10880 *lba = scsi_8btou64(cdb->addr); 10881 *len = cdb->length; 10882 break; 10883 } 10884 case READ_6: 10885 case WRITE_6: { 10886 struct scsi_rw_6 *cdb; 10887 10888 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10889 10890 *lba = scsi_3btoul(cdb->addr); 10891 /* only 5 bits are valid in the most significant address byte */ 10892 *lba &= 0x1fffff; 10893 *len = cdb->length; 10894 break; 10895 } 10896 case READ_10: 10897 case WRITE_10: { 10898 struct scsi_rw_10 *cdb; 10899 10900 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10901 10902 *lba = scsi_4btoul(cdb->addr); 10903 *len = scsi_2btoul(cdb->length); 10904 break; 10905 } 10906 case WRITE_VERIFY_10: { 10907 struct scsi_write_verify_10 *cdb; 10908 10909 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10910 10911 *lba = scsi_4btoul(cdb->addr); 10912 *len = scsi_2btoul(cdb->length); 10913 break; 10914 } 10915 case READ_12: 10916 case WRITE_12: { 10917 struct scsi_rw_12 *cdb; 10918 10919 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10920 10921 *lba = scsi_4btoul(cdb->addr); 10922 *len = scsi_4btoul(cdb->length); 10923 break; 10924 } 10925 case WRITE_VERIFY_12: { 10926 struct scsi_write_verify_12 *cdb; 10927 10928 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10929 10930 *lba = scsi_4btoul(cdb->addr); 10931 *len = scsi_4btoul(cdb->length); 10932 break; 10933 } 10934 case READ_16: 10935 case WRITE_16: 10936 case WRITE_ATOMIC_16: { 10937 struct scsi_rw_16 *cdb; 10938 10939 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10940 10941 *lba = scsi_8btou64(cdb->addr); 10942 *len = scsi_4btoul(cdb->length); 10943 break; 10944 } 10945 case WRITE_VERIFY_16: { 10946 struct scsi_write_verify_16 *cdb; 10947 10948 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10949 10950 *lba = scsi_8btou64(cdb->addr); 10951 *len = scsi_4btoul(cdb->length); 10952 break; 10953 } 10954 case WRITE_SAME_10: { 10955 struct scsi_write_same_10 *cdb; 10956 10957 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10958 10959 *lba = scsi_4btoul(cdb->addr); 10960 *len = scsi_2btoul(cdb->length); 10961 break; 10962 } 10963 case WRITE_SAME_16: { 10964 struct scsi_write_same_16 *cdb; 10965 10966 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10967 10968 *lba = scsi_8btou64(cdb->addr); 10969 *len = scsi_4btoul(cdb->length); 10970 break; 10971 } 10972 case VERIFY_10: { 10973 struct scsi_verify_10 *cdb; 10974 10975 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10976 10977 *lba = scsi_4btoul(cdb->addr); 10978 *len = scsi_2btoul(cdb->length); 10979 break; 10980 } 10981 case VERIFY_12: { 10982 struct scsi_verify_12 *cdb; 10983 10984 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10985 10986 *lba = scsi_4btoul(cdb->addr); 10987 *len = scsi_4btoul(cdb->length); 10988 break; 10989 } 10990 case VERIFY_16: { 10991 struct scsi_verify_16 *cdb; 10992 10993 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10994 10995 *lba = scsi_8btou64(cdb->addr); 10996 *len = scsi_4btoul(cdb->length); 10997 break; 10998 } 10999 case UNMAP: { 11000 *lba = 0; 11001 *len = UINT64_MAX; 11002 break; 11003 } 11004 default: 11005 return (1); 11006 break; /* NOTREACHED */ 11007 } 11008 11009 return (0); 11010} 11011 11012static ctl_action 11013ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 11014{ 11015 uint64_t endlba1, endlba2; 11016 11017 endlba1 = lba1 + len1 - 1; 11018 endlba2 = lba2 + len2 - 1; 11019 11020 if ((endlba1 < lba2) 11021 || (endlba2 < lba1)) 11022 return (CTL_ACTION_PASS); 11023 else 11024 return (CTL_ACTION_BLOCK); 11025} 11026 11027static int 11028ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 11029{ 11030 struct ctl_ptr_len_flags *ptrlen; 11031 struct scsi_unmap_desc *buf, *end, *range; 11032 uint64_t lba; 11033 uint32_t len; 11034 11035 /* If not UNMAP -- go other way. */ 11036 if (io->io_hdr.io_type != CTL_IO_SCSI || 11037 io->scsiio.cdb[0] != UNMAP) 11038 return (CTL_ACTION_ERROR); 11039 11040 /* If UNMAP without data -- block and wait for data. */ 11041 ptrlen = (struct ctl_ptr_len_flags *) 11042 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 11043 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 11044 ptrlen->ptr == NULL) 11045 return (CTL_ACTION_BLOCK); 11046 11047 /* UNMAP with data -- check for collision. */ 11048 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 11049 end = buf + ptrlen->len / sizeof(*buf); 11050 for (range = buf; range < end; range++) { 11051 lba = scsi_8btou64(range->lba); 11052 len = scsi_4btoul(range->length); 11053 if ((lba < lba2 + len2) && (lba + len > lba2)) 11054 return (CTL_ACTION_BLOCK); 11055 } 11056 return (CTL_ACTION_PASS); 11057} 11058 11059static ctl_action 11060ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 11061{ 11062 uint64_t lba1, lba2; 11063 uint64_t len1, len2; 11064 int retval; 11065 11066 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 11067 return (CTL_ACTION_ERROR); 11068 11069 retval = ctl_extent_check_unmap(io2, lba1, len1); 11070 if (retval != CTL_ACTION_ERROR) 11071 return (retval); 11072 11073 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 11074 return (CTL_ACTION_ERROR); 11075 11076 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 11077} 11078 11079static ctl_action 11080ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 11081 union ctl_io *ooa_io) 11082{ 11083 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11084 ctl_serialize_action *serialize_row; 11085 11086 /* 11087 * The initiator attempted multiple untagged commands at the same 11088 * time. Can't do that. 11089 */ 11090 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11091 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11092 && ((pending_io->io_hdr.nexus.targ_port == 11093 ooa_io->io_hdr.nexus.targ_port) 11094 && (pending_io->io_hdr.nexus.initid.id == 11095 ooa_io->io_hdr.nexus.initid.id)) 11096 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11097 return (CTL_ACTION_OVERLAP); 11098 11099 /* 11100 * The initiator attempted to send multiple tagged commands with 11101 * the same ID. (It's fine if different initiators have the same 11102 * tag ID.) 11103 * 11104 * Even if all of those conditions are true, we don't kill the I/O 11105 * if the command ahead of us has been aborted. We won't end up 11106 * sending it to the FETD, and it's perfectly legal to resend a 11107 * command with the same tag number as long as the previous 11108 * instance of this tag number has been aborted somehow. 11109 */ 11110 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11111 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11112 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11113 && ((pending_io->io_hdr.nexus.targ_port == 11114 ooa_io->io_hdr.nexus.targ_port) 11115 && (pending_io->io_hdr.nexus.initid.id == 11116 ooa_io->io_hdr.nexus.initid.id)) 11117 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11118 return (CTL_ACTION_OVERLAP_TAG); 11119 11120 /* 11121 * If we get a head of queue tag, SAM-3 says that we should 11122 * immediately execute it. 11123 * 11124 * What happens if this command would normally block for some other 11125 * reason? e.g. a request sense with a head of queue tag 11126 * immediately after a write. Normally that would block, but this 11127 * will result in its getting executed immediately... 11128 * 11129 * We currently return "pass" instead of "skip", so we'll end up 11130 * going through the rest of the queue to check for overlapped tags. 11131 * 11132 * XXX KDM check for other types of blockage first?? 11133 */ 11134 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11135 return (CTL_ACTION_PASS); 11136 11137 /* 11138 * Ordered tags have to block until all items ahead of them 11139 * have completed. If we get called with an ordered tag, we always 11140 * block, if something else is ahead of us in the queue. 11141 */ 11142 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11143 return (CTL_ACTION_BLOCK); 11144 11145 /* 11146 * Simple tags get blocked until all head of queue and ordered tags 11147 * ahead of them have completed. I'm lumping untagged commands in 11148 * with simple tags here. XXX KDM is that the right thing to do? 11149 */ 11150 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11151 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11152 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11153 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11154 return (CTL_ACTION_BLOCK); 11155 11156 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11157 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11158 11159 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11160 11161 switch (serialize_row[pending_entry->seridx]) { 11162 case CTL_SER_BLOCK: 11163 return (CTL_ACTION_BLOCK); 11164 case CTL_SER_EXTENT: 11165 return (ctl_extent_check(pending_io, ooa_io)); 11166 case CTL_SER_EXTENTOPT: 11167 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11168 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11169 return (ctl_extent_check(pending_io, ooa_io)); 11170 /* FALLTHROUGH */ 11171 case CTL_SER_PASS: 11172 return (CTL_ACTION_PASS); 11173 case CTL_SER_BLOCKOPT: 11174 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11175 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11176 return (CTL_ACTION_BLOCK); 11177 return (CTL_ACTION_PASS); 11178 case CTL_SER_SKIP: 11179 return (CTL_ACTION_SKIP); 11180 default: 11181 panic("invalid serialization value %d", 11182 serialize_row[pending_entry->seridx]); 11183 } 11184 11185 return (CTL_ACTION_ERROR); 11186} 11187 11188/* 11189 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11190 * Assumptions: 11191 * - pending_io is generally either incoming, or on the blocked queue 11192 * - starting I/O is the I/O we want to start the check with. 11193 */ 11194static ctl_action 11195ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11196 union ctl_io *starting_io) 11197{ 11198 union ctl_io *ooa_io; 11199 ctl_action action; 11200 11201 mtx_assert(&lun->lun_lock, MA_OWNED); 11202 11203 /* 11204 * Run back along the OOA queue, starting with the current 11205 * blocked I/O and going through every I/O before it on the 11206 * queue. If starting_io is NULL, we'll just end up returning 11207 * CTL_ACTION_PASS. 11208 */ 11209 for (ooa_io = starting_io; ooa_io != NULL; 11210 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11211 ooa_links)){ 11212 11213 /* 11214 * This routine just checks to see whether 11215 * cur_blocked is blocked by ooa_io, which is ahead 11216 * of it in the queue. It doesn't queue/dequeue 11217 * cur_blocked. 11218 */ 11219 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11220 switch (action) { 11221 case CTL_ACTION_BLOCK: 11222 case CTL_ACTION_OVERLAP: 11223 case CTL_ACTION_OVERLAP_TAG: 11224 case CTL_ACTION_SKIP: 11225 case CTL_ACTION_ERROR: 11226 return (action); 11227 break; /* NOTREACHED */ 11228 case CTL_ACTION_PASS: 11229 break; 11230 default: 11231 panic("invalid action %d", action); 11232 break; /* NOTREACHED */ 11233 } 11234 } 11235 11236 return (CTL_ACTION_PASS); 11237} 11238 11239/* 11240 * Assumptions: 11241 * - An I/O has just completed, and has been removed from the per-LUN OOA 11242 * queue, so some items on the blocked queue may now be unblocked. 11243 */ 11244static int 11245ctl_check_blocked(struct ctl_lun *lun) 11246{ 11247 union ctl_io *cur_blocked, *next_blocked; 11248 11249 mtx_assert(&lun->lun_lock, MA_OWNED); 11250 11251 /* 11252 * Run forward from the head of the blocked queue, checking each 11253 * entry against the I/Os prior to it on the OOA queue to see if 11254 * there is still any blockage. 11255 * 11256 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11257 * with our removing a variable on it while it is traversing the 11258 * list. 11259 */ 11260 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11261 cur_blocked != NULL; cur_blocked = next_blocked) { 11262 union ctl_io *prev_ooa; 11263 ctl_action action; 11264 11265 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11266 blocked_links); 11267 11268 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11269 ctl_ooaq, ooa_links); 11270 11271 /* 11272 * If cur_blocked happens to be the first item in the OOA 11273 * queue now, prev_ooa will be NULL, and the action 11274 * returned will just be CTL_ACTION_PASS. 11275 */ 11276 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11277 11278 switch (action) { 11279 case CTL_ACTION_BLOCK: 11280 /* Nothing to do here, still blocked */ 11281 break; 11282 case CTL_ACTION_OVERLAP: 11283 case CTL_ACTION_OVERLAP_TAG: 11284 /* 11285 * This shouldn't happen! In theory we've already 11286 * checked this command for overlap... 11287 */ 11288 break; 11289 case CTL_ACTION_PASS: 11290 case CTL_ACTION_SKIP: { 11291 struct ctl_softc *softc; 11292 const struct ctl_cmd_entry *entry; 11293 uint32_t initidx; 11294 int isc_retval; 11295 11296 /* 11297 * The skip case shouldn't happen, this transaction 11298 * should have never made it onto the blocked queue. 11299 */ 11300 /* 11301 * This I/O is no longer blocked, we can remove it 11302 * from the blocked queue. Since this is a TAILQ 11303 * (doubly linked list), we can do O(1) removals 11304 * from any place on the list. 11305 */ 11306 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11307 blocked_links); 11308 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11309 11310 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11311 /* 11312 * Need to send IO back to original side to 11313 * run 11314 */ 11315 union ctl_ha_msg msg_info; 11316 11317 msg_info.hdr.original_sc = 11318 cur_blocked->io_hdr.original_sc; 11319 msg_info.hdr.serializing_sc = cur_blocked; 11320 msg_info.hdr.msg_type = CTL_MSG_R2R; 11321 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11322 &msg_info, sizeof(msg_info), 0)) > 11323 CTL_HA_STATUS_SUCCESS) { 11324 printf("CTL:Check Blocked error from " 11325 "ctl_ha_msg_send %d\n", 11326 isc_retval); 11327 } 11328 break; 11329 } 11330 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11331 softc = control_softc; 11332 11333 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11334 11335 /* 11336 * Check this I/O for LUN state changes that may 11337 * have happened while this command was blocked. 11338 * The LUN state may have been changed by a command 11339 * ahead of us in the queue, so we need to re-check 11340 * for any states that can be caused by SCSI 11341 * commands. 11342 */ 11343 if (ctl_scsiio_lun_check(softc, lun, entry, 11344 &cur_blocked->scsiio) == 0) { 11345 cur_blocked->io_hdr.flags |= 11346 CTL_FLAG_IS_WAS_ON_RTR; 11347 ctl_enqueue_rtr(cur_blocked); 11348 } else 11349 ctl_done(cur_blocked); 11350 break; 11351 } 11352 default: 11353 /* 11354 * This probably shouldn't happen -- we shouldn't 11355 * get CTL_ACTION_ERROR, or anything else. 11356 */ 11357 break; 11358 } 11359 } 11360 11361 return (CTL_RETVAL_COMPLETE); 11362} 11363 11364/* 11365 * This routine (with one exception) checks LUN flags that can be set by 11366 * commands ahead of us in the OOA queue. These flags have to be checked 11367 * when a command initially comes in, and when we pull a command off the 11368 * blocked queue and are preparing to execute it. The reason we have to 11369 * check these flags for commands on the blocked queue is that the LUN 11370 * state may have been changed by a command ahead of us while we're on the 11371 * blocked queue. 11372 * 11373 * Ordering is somewhat important with these checks, so please pay 11374 * careful attention to the placement of any new checks. 11375 */ 11376static int 11377ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11378 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11379{ 11380 int retval; 11381 uint32_t residx; 11382 11383 retval = 0; 11384 11385 mtx_assert(&lun->lun_lock, MA_OWNED); 11386 11387 /* 11388 * If this shelf is a secondary shelf controller, we have to reject 11389 * any media access commands. 11390 */ 11391#if 0 11392 /* No longer needed for HA */ 11393 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11394 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11395 ctl_set_lun_standby(ctsio); 11396 retval = 1; 11397 goto bailout; 11398 } 11399#endif 11400 11401 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11402 if (lun->flags & CTL_LUN_READONLY) { 11403 ctl_set_sense(ctsio, /*current_error*/ 1, 11404 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11405 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11406 retval = 1; 11407 goto bailout; 11408 } 11409 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11410 .eca_and_aen & SCP_SWP) != 0) { 11411 ctl_set_sense(ctsio, /*current_error*/ 1, 11412 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11413 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11414 retval = 1; 11415 goto bailout; 11416 } 11417 } 11418 11419 /* 11420 * Check for a reservation conflict. If this command isn't allowed 11421 * even on reserved LUNs, and if this initiator isn't the one who 11422 * reserved us, reject the command with a reservation conflict. 11423 */ 11424 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11425 if ((lun->flags & CTL_LUN_RESERVED) 11426 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11427 if (lun->res_idx != residx) { 11428 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11429 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11430 retval = 1; 11431 goto bailout; 11432 } 11433 } 11434 11435 if ((lun->flags & CTL_LUN_PR_RESERVED) 11436 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11437 /* 11438 * if we aren't registered or it's a res holder type 11439 * reservation and this isn't the res holder then set a 11440 * conflict. 11441 * NOTE: Commands which might be allowed on write exclusive 11442 * type reservations are checked in the particular command 11443 * for a conflict. Read and SSU are the only ones. 11444 */ 11445 if (lun->pr_keys[residx] == 0 11446 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11447 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11448 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11449 retval = 1; 11450 goto bailout; 11451 } 11452 11453 } 11454 11455 if ((lun->flags & CTL_LUN_OFFLINE) 11456 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11457 ctl_set_lun_not_ready(ctsio); 11458 retval = 1; 11459 goto bailout; 11460 } 11461 11462 /* 11463 * If the LUN is stopped, see if this particular command is allowed 11464 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11465 */ 11466 if ((lun->flags & CTL_LUN_STOPPED) 11467 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11468 /* "Logical unit not ready, initializing cmd. required" */ 11469 ctl_set_lun_stopped(ctsio); 11470 retval = 1; 11471 goto bailout; 11472 } 11473 11474 if ((lun->flags & CTL_LUN_INOPERABLE) 11475 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11476 /* "Medium format corrupted" */ 11477 ctl_set_medium_format_corrupted(ctsio); 11478 retval = 1; 11479 goto bailout; 11480 } 11481 11482bailout: 11483 return (retval); 11484 11485} 11486 11487static void 11488ctl_failover_io(union ctl_io *io, int have_lock) 11489{ 11490 ctl_set_busy(&io->scsiio); 11491 ctl_done(io); 11492} 11493 11494static void 11495ctl_failover(void) 11496{ 11497 struct ctl_lun *lun; 11498 struct ctl_softc *ctl_softc; 11499 union ctl_io *next_io, *pending_io; 11500 union ctl_io *io; 11501 int lun_idx; 11502 int i; 11503 11504 ctl_softc = control_softc; 11505 11506 mtx_lock(&ctl_softc->ctl_lock); 11507 /* 11508 * Remove any cmds from the other SC from the rtr queue. These 11509 * will obviously only be for LUNs for which we're the primary. 11510 * We can't send status or get/send data for these commands. 11511 * Since they haven't been executed yet, we can just remove them. 11512 * We'll either abort them or delete them below, depending on 11513 * which HA mode we're in. 11514 */ 11515#ifdef notyet 11516 mtx_lock(&ctl_softc->queue_lock); 11517 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11518 io != NULL; io = next_io) { 11519 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11520 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11521 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11522 ctl_io_hdr, links); 11523 } 11524 mtx_unlock(&ctl_softc->queue_lock); 11525#endif 11526 11527 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11528 lun = ctl_softc->ctl_luns[lun_idx]; 11529 if (lun==NULL) 11530 continue; 11531 11532 /* 11533 * Processor LUNs are primary on both sides. 11534 * XXX will this always be true? 11535 */ 11536 if (lun->be_lun->lun_type == T_PROCESSOR) 11537 continue; 11538 11539 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11540 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11541 printf("FAILOVER: primary lun %d\n", lun_idx); 11542 /* 11543 * Remove all commands from the other SC. First from the 11544 * blocked queue then from the ooa queue. Once we have 11545 * removed them. Call ctl_check_blocked to see if there 11546 * is anything that can run. 11547 */ 11548 for (io = (union ctl_io *)TAILQ_FIRST( 11549 &lun->blocked_queue); io != NULL; io = next_io) { 11550 11551 next_io = (union ctl_io *)TAILQ_NEXT( 11552 &io->io_hdr, blocked_links); 11553 11554 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11555 TAILQ_REMOVE(&lun->blocked_queue, 11556 &io->io_hdr,blocked_links); 11557 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11558 TAILQ_REMOVE(&lun->ooa_queue, 11559 &io->io_hdr, ooa_links); 11560 11561 ctl_free_io(io); 11562 } 11563 } 11564 11565 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11566 io != NULL; io = next_io) { 11567 11568 next_io = (union ctl_io *)TAILQ_NEXT( 11569 &io->io_hdr, ooa_links); 11570 11571 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11572 11573 TAILQ_REMOVE(&lun->ooa_queue, 11574 &io->io_hdr, 11575 ooa_links); 11576 11577 ctl_free_io(io); 11578 } 11579 } 11580 ctl_check_blocked(lun); 11581 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11582 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11583 11584 printf("FAILOVER: primary lun %d\n", lun_idx); 11585 /* 11586 * Abort all commands from the other SC. We can't 11587 * send status back for them now. These should get 11588 * cleaned up when they are completed or come out 11589 * for a datamove operation. 11590 */ 11591 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11592 io != NULL; io = next_io) { 11593 next_io = (union ctl_io *)TAILQ_NEXT( 11594 &io->io_hdr, ooa_links); 11595 11596 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11597 io->io_hdr.flags |= CTL_FLAG_ABORT; 11598 } 11599 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11600 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11601 11602 printf("FAILOVER: secondary lun %d\n", lun_idx); 11603 11604 lun->flags |= CTL_LUN_PRIMARY_SC; 11605 11606 /* 11607 * We send all I/O that was sent to this controller 11608 * and redirected to the other side back with 11609 * busy status, and have the initiator retry it. 11610 * Figuring out how much data has been transferred, 11611 * etc. and picking up where we left off would be 11612 * very tricky. 11613 * 11614 * XXX KDM need to remove I/O from the blocked 11615 * queue as well! 11616 */ 11617 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11618 &lun->ooa_queue); pending_io != NULL; 11619 pending_io = next_io) { 11620 11621 next_io = (union ctl_io *)TAILQ_NEXT( 11622 &pending_io->io_hdr, ooa_links); 11623 11624 pending_io->io_hdr.flags &= 11625 ~CTL_FLAG_SENT_2OTHER_SC; 11626 11627 if (pending_io->io_hdr.flags & 11628 CTL_FLAG_IO_ACTIVE) { 11629 pending_io->io_hdr.flags |= 11630 CTL_FLAG_FAILOVER; 11631 } else { 11632 ctl_set_busy(&pending_io->scsiio); 11633 ctl_done(pending_io); 11634 } 11635 } 11636 11637 /* 11638 * Build Unit Attention 11639 */ 11640 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11641 lun->pending_ua[i] |= 11642 CTL_UA_ASYM_ACC_CHANGE; 11643 } 11644 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11645 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11646 printf("FAILOVER: secondary lun %d\n", lun_idx); 11647 /* 11648 * if the first io on the OOA is not on the RtR queue 11649 * add it. 11650 */ 11651 lun->flags |= CTL_LUN_PRIMARY_SC; 11652 11653 pending_io = (union ctl_io *)TAILQ_FIRST( 11654 &lun->ooa_queue); 11655 if (pending_io==NULL) { 11656 printf("Nothing on OOA queue\n"); 11657 continue; 11658 } 11659 11660 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11661 if ((pending_io->io_hdr.flags & 11662 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11663 pending_io->io_hdr.flags |= 11664 CTL_FLAG_IS_WAS_ON_RTR; 11665 ctl_enqueue_rtr(pending_io); 11666 } 11667#if 0 11668 else 11669 { 11670 printf("Tag 0x%04x is running\n", 11671 pending_io->scsiio.tag_num); 11672 } 11673#endif 11674 11675 next_io = (union ctl_io *)TAILQ_NEXT( 11676 &pending_io->io_hdr, ooa_links); 11677 for (pending_io=next_io; pending_io != NULL; 11678 pending_io = next_io) { 11679 pending_io->io_hdr.flags &= 11680 ~CTL_FLAG_SENT_2OTHER_SC; 11681 next_io = (union ctl_io *)TAILQ_NEXT( 11682 &pending_io->io_hdr, ooa_links); 11683 if (pending_io->io_hdr.flags & 11684 CTL_FLAG_IS_WAS_ON_RTR) { 11685#if 0 11686 printf("Tag 0x%04x is running\n", 11687 pending_io->scsiio.tag_num); 11688#endif 11689 continue; 11690 } 11691 11692 switch (ctl_check_ooa(lun, pending_io, 11693 (union ctl_io *)TAILQ_PREV( 11694 &pending_io->io_hdr, ctl_ooaq, 11695 ooa_links))) { 11696 11697 case CTL_ACTION_BLOCK: 11698 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11699 &pending_io->io_hdr, 11700 blocked_links); 11701 pending_io->io_hdr.flags |= 11702 CTL_FLAG_BLOCKED; 11703 break; 11704 case CTL_ACTION_PASS: 11705 case CTL_ACTION_SKIP: 11706 pending_io->io_hdr.flags |= 11707 CTL_FLAG_IS_WAS_ON_RTR; 11708 ctl_enqueue_rtr(pending_io); 11709 break; 11710 case CTL_ACTION_OVERLAP: 11711 ctl_set_overlapped_cmd( 11712 (struct ctl_scsiio *)pending_io); 11713 ctl_done(pending_io); 11714 break; 11715 case CTL_ACTION_OVERLAP_TAG: 11716 ctl_set_overlapped_tag( 11717 (struct ctl_scsiio *)pending_io, 11718 pending_io->scsiio.tag_num & 0xff); 11719 ctl_done(pending_io); 11720 break; 11721 case CTL_ACTION_ERROR: 11722 default: 11723 ctl_set_internal_failure( 11724 (struct ctl_scsiio *)pending_io, 11725 0, // sks_valid 11726 0); //retry count 11727 ctl_done(pending_io); 11728 break; 11729 } 11730 } 11731 11732 /* 11733 * Build Unit Attention 11734 */ 11735 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11736 lun->pending_ua[i] |= 11737 CTL_UA_ASYM_ACC_CHANGE; 11738 } 11739 } else { 11740 panic("Unhandled HA mode failover, LUN flags = %#x, " 11741 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11742 } 11743 } 11744 ctl_pause_rtr = 0; 11745 mtx_unlock(&ctl_softc->ctl_lock); 11746} 11747 11748static int 11749ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11750{ 11751 struct ctl_lun *lun; 11752 const struct ctl_cmd_entry *entry; 11753 uint32_t initidx, targ_lun; 11754 int retval; 11755 11756 retval = 0; 11757 11758 lun = NULL; 11759 11760 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11761 if ((targ_lun < CTL_MAX_LUNS) 11762 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11763 lun = ctl_softc->ctl_luns[targ_lun]; 11764 /* 11765 * If the LUN is invalid, pretend that it doesn't exist. 11766 * It will go away as soon as all pending I/O has been 11767 * completed. 11768 */ 11769 if (lun->flags & CTL_LUN_DISABLED) { 11770 lun = NULL; 11771 } else { 11772 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11773 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11774 lun->be_lun; 11775 if (lun->be_lun->lun_type == T_PROCESSOR) { 11776 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11777 } 11778 11779 /* 11780 * Every I/O goes into the OOA queue for a 11781 * particular LUN, and stays there until completion. 11782 */ 11783 mtx_lock(&lun->lun_lock); 11784 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11785 ooa_links); 11786 } 11787 } else { 11788 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11789 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11790 } 11791 11792 /* Get command entry and return error if it is unsuppotyed. */ 11793 entry = ctl_validate_command(ctsio); 11794 if (entry == NULL) { 11795 if (lun) 11796 mtx_unlock(&lun->lun_lock); 11797 return (retval); 11798 } 11799 11800 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11801 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11802 11803 /* 11804 * Check to see whether we can send this command to LUNs that don't 11805 * exist. This should pretty much only be the case for inquiry 11806 * and request sense. Further checks, below, really require having 11807 * a LUN, so we can't really check the command anymore. Just put 11808 * it on the rtr queue. 11809 */ 11810 if (lun == NULL) { 11811 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11812 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11813 ctl_enqueue_rtr((union ctl_io *)ctsio); 11814 return (retval); 11815 } 11816 11817 ctl_set_unsupported_lun(ctsio); 11818 ctl_done((union ctl_io *)ctsio); 11819 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11820 return (retval); 11821 } else { 11822 /* 11823 * Make sure we support this particular command on this LUN. 11824 * e.g., we don't support writes to the control LUN. 11825 */ 11826 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11827 mtx_unlock(&lun->lun_lock); 11828 ctl_set_invalid_opcode(ctsio); 11829 ctl_done((union ctl_io *)ctsio); 11830 return (retval); 11831 } 11832 } 11833 11834 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11835 11836#ifdef CTL_WITH_CA 11837 /* 11838 * If we've got a request sense, it'll clear the contingent 11839 * allegiance condition. Otherwise, if we have a CA condition for 11840 * this initiator, clear it, because it sent down a command other 11841 * than request sense. 11842 */ 11843 if ((ctsio->cdb[0] != REQUEST_SENSE) 11844 && (ctl_is_set(lun->have_ca, initidx))) 11845 ctl_clear_mask(lun->have_ca, initidx); 11846#endif 11847 11848 /* 11849 * If the command has this flag set, it handles its own unit 11850 * attention reporting, we shouldn't do anything. Otherwise we 11851 * check for any pending unit attentions, and send them back to the 11852 * initiator. We only do this when a command initially comes in, 11853 * not when we pull it off the blocked queue. 11854 * 11855 * According to SAM-3, section 5.3.2, the order that things get 11856 * presented back to the host is basically unit attentions caused 11857 * by some sort of reset event, busy status, reservation conflicts 11858 * or task set full, and finally any other status. 11859 * 11860 * One issue here is that some of the unit attentions we report 11861 * don't fall into the "reset" category (e.g. "reported luns data 11862 * has changed"). So reporting it here, before the reservation 11863 * check, may be technically wrong. I guess the only thing to do 11864 * would be to check for and report the reset events here, and then 11865 * check for the other unit attention types after we check for a 11866 * reservation conflict. 11867 * 11868 * XXX KDM need to fix this 11869 */ 11870 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11871 ctl_ua_type ua_type; 11872 11873 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11874 scsi_sense_data_type sense_format; 11875 11876 if (lun != NULL) 11877 sense_format = (lun->flags & 11878 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11879 SSD_TYPE_FIXED; 11880 else 11881 sense_format = SSD_TYPE_FIXED; 11882 11883 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11884 &ctsio->sense_data, sense_format); 11885 if (ua_type != CTL_UA_NONE) { 11886 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11887 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11888 CTL_AUTOSENSE; 11889 ctsio->sense_len = SSD_FULL_SIZE; 11890 mtx_unlock(&lun->lun_lock); 11891 ctl_done((union ctl_io *)ctsio); 11892 return (retval); 11893 } 11894 } 11895 } 11896 11897 11898 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11899 mtx_unlock(&lun->lun_lock); 11900 ctl_done((union ctl_io *)ctsio); 11901 return (retval); 11902 } 11903 11904 /* 11905 * XXX CHD this is where we want to send IO to other side if 11906 * this LUN is secondary on this SC. We will need to make a copy 11907 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11908 * the copy we send as FROM_OTHER. 11909 * We also need to stuff the address of the original IO so we can 11910 * find it easily. Something similar will need be done on the other 11911 * side so when we are done we can find the copy. 11912 */ 11913 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11914 union ctl_ha_msg msg_info; 11915 int isc_retval; 11916 11917 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11918 11919 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11920 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11921#if 0 11922 printf("1. ctsio %p\n", ctsio); 11923#endif 11924 msg_info.hdr.serializing_sc = NULL; 11925 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11926 msg_info.scsi.tag_num = ctsio->tag_num; 11927 msg_info.scsi.tag_type = ctsio->tag_type; 11928 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11929 11930 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11931 11932 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11933 (void *)&msg_info, sizeof(msg_info), 0)) > 11934 CTL_HA_STATUS_SUCCESS) { 11935 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11936 isc_retval); 11937 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11938 } else { 11939#if 0 11940 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11941#endif 11942 } 11943 11944 /* 11945 * XXX KDM this I/O is off the incoming queue, but hasn't 11946 * been inserted on any other queue. We may need to come 11947 * up with a holding queue while we wait for serialization 11948 * so that we have an idea of what we're waiting for from 11949 * the other side. 11950 */ 11951 mtx_unlock(&lun->lun_lock); 11952 return (retval); 11953 } 11954 11955 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11956 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11957 ctl_ooaq, ooa_links))) { 11958 case CTL_ACTION_BLOCK: 11959 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11960 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11961 blocked_links); 11962 mtx_unlock(&lun->lun_lock); 11963 return (retval); 11964 case CTL_ACTION_PASS: 11965 case CTL_ACTION_SKIP: 11966 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11967 mtx_unlock(&lun->lun_lock); 11968 ctl_enqueue_rtr((union ctl_io *)ctsio); 11969 break; 11970 case CTL_ACTION_OVERLAP: 11971 mtx_unlock(&lun->lun_lock); 11972 ctl_set_overlapped_cmd(ctsio); 11973 ctl_done((union ctl_io *)ctsio); 11974 break; 11975 case CTL_ACTION_OVERLAP_TAG: 11976 mtx_unlock(&lun->lun_lock); 11977 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11978 ctl_done((union ctl_io *)ctsio); 11979 break; 11980 case CTL_ACTION_ERROR: 11981 default: 11982 mtx_unlock(&lun->lun_lock); 11983 ctl_set_internal_failure(ctsio, 11984 /*sks_valid*/ 0, 11985 /*retry_count*/ 0); 11986 ctl_done((union ctl_io *)ctsio); 11987 break; 11988 } 11989 return (retval); 11990} 11991 11992const struct ctl_cmd_entry * 11993ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11994{ 11995 const struct ctl_cmd_entry *entry; 11996 int service_action; 11997 11998 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11999 if (sa) 12000 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 12001 if (entry->flags & CTL_CMD_FLAG_SA5) { 12002 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 12003 entry = &((const struct ctl_cmd_entry *) 12004 entry->execute)[service_action]; 12005 } 12006 return (entry); 12007} 12008 12009const struct ctl_cmd_entry * 12010ctl_validate_command(struct ctl_scsiio *ctsio) 12011{ 12012 const struct ctl_cmd_entry *entry; 12013 int i, sa; 12014 uint8_t diff; 12015 12016 entry = ctl_get_cmd_entry(ctsio, &sa); 12017 if (entry->execute == NULL) { 12018 if (sa) 12019 ctl_set_invalid_field(ctsio, 12020 /*sks_valid*/ 1, 12021 /*command*/ 1, 12022 /*field*/ 1, 12023 /*bit_valid*/ 1, 12024 /*bit*/ 4); 12025 else 12026 ctl_set_invalid_opcode(ctsio); 12027 ctl_done((union ctl_io *)ctsio); 12028 return (NULL); 12029 } 12030 KASSERT(entry->length > 0, 12031 ("Not defined length for command 0x%02x/0x%02x", 12032 ctsio->cdb[0], ctsio->cdb[1])); 12033 for (i = 1; i < entry->length; i++) { 12034 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 12035 if (diff == 0) 12036 continue; 12037 ctl_set_invalid_field(ctsio, 12038 /*sks_valid*/ 1, 12039 /*command*/ 1, 12040 /*field*/ i, 12041 /*bit_valid*/ 1, 12042 /*bit*/ fls(diff) - 1); 12043 ctl_done((union ctl_io *)ctsio); 12044 return (NULL); 12045 } 12046 return (entry); 12047} 12048 12049static int 12050ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 12051{ 12052 12053 switch (lun_type) { 12054 case T_PROCESSOR: 12055 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 12056 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 12057 return (0); 12058 break; 12059 case T_DIRECT: 12060 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 12061 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 12062 return (0); 12063 break; 12064 default: 12065 return (0); 12066 } 12067 return (1); 12068} 12069 12070static int 12071ctl_scsiio(struct ctl_scsiio *ctsio) 12072{ 12073 int retval; 12074 const struct ctl_cmd_entry *entry; 12075 12076 retval = CTL_RETVAL_COMPLETE; 12077 12078 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 12079 12080 entry = ctl_get_cmd_entry(ctsio, NULL); 12081 12082 /* 12083 * If this I/O has been aborted, just send it straight to 12084 * ctl_done() without executing it. 12085 */ 12086 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 12087 ctl_done((union ctl_io *)ctsio); 12088 goto bailout; 12089 } 12090 12091 /* 12092 * All the checks should have been handled by ctl_scsiio_precheck(). 12093 * We should be clear now to just execute the I/O. 12094 */ 12095 retval = entry->execute(ctsio); 12096 12097bailout: 12098 return (retval); 12099} 12100 12101/* 12102 * Since we only implement one target right now, a bus reset simply resets 12103 * our single target. 12104 */ 12105static int 12106ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 12107{ 12108 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 12109} 12110 12111static int 12112ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 12113 ctl_ua_type ua_type) 12114{ 12115 struct ctl_lun *lun; 12116 int retval; 12117 12118 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12119 union ctl_ha_msg msg_info; 12120 12121 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12122 msg_info.hdr.nexus = io->io_hdr.nexus; 12123 if (ua_type==CTL_UA_TARG_RESET) 12124 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 12125 else 12126 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12127 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12128 msg_info.hdr.original_sc = NULL; 12129 msg_info.hdr.serializing_sc = NULL; 12130 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12131 (void *)&msg_info, sizeof(msg_info), 0)) { 12132 } 12133 } 12134 retval = 0; 12135 12136 mtx_lock(&ctl_softc->ctl_lock); 12137 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12138 retval += ctl_lun_reset(lun, io, ua_type); 12139 mtx_unlock(&ctl_softc->ctl_lock); 12140 12141 return (retval); 12142} 12143 12144/* 12145 * The LUN should always be set. The I/O is optional, and is used to 12146 * distinguish between I/Os sent by this initiator, and by other 12147 * initiators. We set unit attention for initiators other than this one. 12148 * SAM-3 is vague on this point. It does say that a unit attention should 12149 * be established for other initiators when a LUN is reset (see section 12150 * 5.7.3), but it doesn't specifically say that the unit attention should 12151 * be established for this particular initiator when a LUN is reset. Here 12152 * is the relevant text, from SAM-3 rev 8: 12153 * 12154 * 5.7.2 When a SCSI initiator port aborts its own tasks 12155 * 12156 * When a SCSI initiator port causes its own task(s) to be aborted, no 12157 * notification that the task(s) have been aborted shall be returned to 12158 * the SCSI initiator port other than the completion response for the 12159 * command or task management function action that caused the task(s) to 12160 * be aborted and notification(s) associated with related effects of the 12161 * action (e.g., a reset unit attention condition). 12162 * 12163 * XXX KDM for now, we're setting unit attention for all initiators. 12164 */ 12165static int 12166ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12167{ 12168 union ctl_io *xio; 12169#if 0 12170 uint32_t initindex; 12171#endif 12172 int i; 12173 12174 mtx_lock(&lun->lun_lock); 12175 /* 12176 * Run through the OOA queue and abort each I/O. 12177 */ 12178#if 0 12179 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12180#endif 12181 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12182 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12183 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12184 } 12185 12186 /* 12187 * This version sets unit attention for every 12188 */ 12189#if 0 12190 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12191 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12192 if (initindex == i) 12193 continue; 12194 lun->pending_ua[i] |= ua_type; 12195 } 12196#endif 12197 12198 /* 12199 * A reset (any kind, really) clears reservations established with 12200 * RESERVE/RELEASE. It does not clear reservations established 12201 * with PERSISTENT RESERVE OUT, but we don't support that at the 12202 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12203 * reservations made with the RESERVE/RELEASE commands, because 12204 * those commands are obsolete in SPC-3. 12205 */ 12206 lun->flags &= ~CTL_LUN_RESERVED; 12207 12208 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12209#ifdef CTL_WITH_CA 12210 ctl_clear_mask(lun->have_ca, i); 12211#endif 12212 lun->pending_ua[i] |= ua_type; 12213 } 12214 mtx_unlock(&lun->lun_lock); 12215 12216 return (0); 12217} 12218 12219static void 12220ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12221 int other_sc) 12222{ 12223 union ctl_io *xio; 12224 12225 mtx_assert(&lun->lun_lock, MA_OWNED); 12226 12227 /* 12228 * Run through the OOA queue and attempt to find the given I/O. 12229 * The target port, initiator ID, tag type and tag number have to 12230 * match the values that we got from the initiator. If we have an 12231 * untagged command to abort, simply abort the first untagged command 12232 * we come to. We only allow one untagged command at a time of course. 12233 */ 12234 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12235 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12236 12237 if ((targ_port == UINT32_MAX || 12238 targ_port == xio->io_hdr.nexus.targ_port) && 12239 (init_id == UINT32_MAX || 12240 init_id == xio->io_hdr.nexus.initid.id)) { 12241 if (targ_port != xio->io_hdr.nexus.targ_port || 12242 init_id != xio->io_hdr.nexus.initid.id) 12243 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12244 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12245 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12246 union ctl_ha_msg msg_info; 12247 12248 msg_info.hdr.nexus = xio->io_hdr.nexus; 12249 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12250 msg_info.task.tag_num = xio->scsiio.tag_num; 12251 msg_info.task.tag_type = xio->scsiio.tag_type; 12252 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12253 msg_info.hdr.original_sc = NULL; 12254 msg_info.hdr.serializing_sc = NULL; 12255 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12256 (void *)&msg_info, sizeof(msg_info), 0); 12257 } 12258 } 12259 } 12260} 12261 12262static int 12263ctl_abort_task_set(union ctl_io *io) 12264{ 12265 struct ctl_softc *softc = control_softc; 12266 struct ctl_lun *lun; 12267 uint32_t targ_lun; 12268 12269 /* 12270 * Look up the LUN. 12271 */ 12272 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12273 mtx_lock(&softc->ctl_lock); 12274 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12275 lun = softc->ctl_luns[targ_lun]; 12276 else { 12277 mtx_unlock(&softc->ctl_lock); 12278 return (1); 12279 } 12280 12281 mtx_lock(&lun->lun_lock); 12282 mtx_unlock(&softc->ctl_lock); 12283 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12284 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12285 io->io_hdr.nexus.initid.id, 12286 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12287 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12288 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12289 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12290 } 12291 mtx_unlock(&lun->lun_lock); 12292 return (0); 12293} 12294 12295static int 12296ctl_i_t_nexus_reset(union ctl_io *io) 12297{ 12298 struct ctl_softc *softc = control_softc; 12299 struct ctl_lun *lun; 12300 uint32_t initindex, residx; 12301 12302 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12303 residx = ctl_get_resindex(&io->io_hdr.nexus); 12304 mtx_lock(&softc->ctl_lock); 12305 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12306 mtx_lock(&lun->lun_lock); 12307 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12308 io->io_hdr.nexus.initid.id, 12309 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12310#ifdef CTL_WITH_CA 12311 ctl_clear_mask(lun->have_ca, initindex); 12312#endif 12313 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12314 lun->flags &= ~CTL_LUN_RESERVED; 12315 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12316 mtx_unlock(&lun->lun_lock); 12317 } 12318 mtx_unlock(&softc->ctl_lock); 12319 return (0); 12320} 12321 12322static int 12323ctl_abort_task(union ctl_io *io) 12324{ 12325 union ctl_io *xio; 12326 struct ctl_lun *lun; 12327 struct ctl_softc *ctl_softc; 12328#if 0 12329 struct sbuf sb; 12330 char printbuf[128]; 12331#endif 12332 int found; 12333 uint32_t targ_lun; 12334 12335 ctl_softc = control_softc; 12336 found = 0; 12337 12338 /* 12339 * Look up the LUN. 12340 */ 12341 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12342 mtx_lock(&ctl_softc->ctl_lock); 12343 if ((targ_lun < CTL_MAX_LUNS) 12344 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12345 lun = ctl_softc->ctl_luns[targ_lun]; 12346 else { 12347 mtx_unlock(&ctl_softc->ctl_lock); 12348 return (1); 12349 } 12350 12351#if 0 12352 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12353 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12354#endif 12355 12356 mtx_lock(&lun->lun_lock); 12357 mtx_unlock(&ctl_softc->ctl_lock); 12358 /* 12359 * Run through the OOA queue and attempt to find the given I/O. 12360 * The target port, initiator ID, tag type and tag number have to 12361 * match the values that we got from the initiator. If we have an 12362 * untagged command to abort, simply abort the first untagged command 12363 * we come to. We only allow one untagged command at a time of course. 12364 */ 12365#if 0 12366 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12367#endif 12368 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12369 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12370#if 0 12371 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12372 12373 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12374 lun->lun, xio->scsiio.tag_num, 12375 xio->scsiio.tag_type, 12376 (xio->io_hdr.blocked_links.tqe_prev 12377 == NULL) ? "" : " BLOCKED", 12378 (xio->io_hdr.flags & 12379 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12380 (xio->io_hdr.flags & 12381 CTL_FLAG_ABORT) ? " ABORT" : "", 12382 (xio->io_hdr.flags & 12383 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12384 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12385 sbuf_finish(&sb); 12386 printf("%s\n", sbuf_data(&sb)); 12387#endif 12388 12389 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12390 && (xio->io_hdr.nexus.initid.id == 12391 io->io_hdr.nexus.initid.id)) { 12392 /* 12393 * If the abort says that the task is untagged, the 12394 * task in the queue must be untagged. Otherwise, 12395 * we just check to see whether the tag numbers 12396 * match. This is because the QLogic firmware 12397 * doesn't pass back the tag type in an abort 12398 * request. 12399 */ 12400#if 0 12401 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12402 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12403 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12404#endif 12405 /* 12406 * XXX KDM we've got problems with FC, because it 12407 * doesn't send down a tag type with aborts. So we 12408 * can only really go by the tag number... 12409 * This may cause problems with parallel SCSI. 12410 * Need to figure that out!! 12411 */ 12412 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12413 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12414 found = 1; 12415 if ((io->io_hdr.flags & 12416 CTL_FLAG_FROM_OTHER_SC) == 0 && 12417 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12418 union ctl_ha_msg msg_info; 12419 12420 io->io_hdr.flags |= 12421 CTL_FLAG_SENT_2OTHER_SC; 12422 msg_info.hdr.nexus = io->io_hdr.nexus; 12423 msg_info.task.task_action = 12424 CTL_TASK_ABORT_TASK; 12425 msg_info.task.tag_num = 12426 io->taskio.tag_num; 12427 msg_info.task.tag_type = 12428 io->taskio.tag_type; 12429 msg_info.hdr.msg_type = 12430 CTL_MSG_MANAGE_TASKS; 12431 msg_info.hdr.original_sc = NULL; 12432 msg_info.hdr.serializing_sc = NULL; 12433#if 0 12434 printf("Sent Abort to other side\n"); 12435#endif 12436 if (CTL_HA_STATUS_SUCCESS != 12437 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12438 (void *)&msg_info, 12439 sizeof(msg_info), 0)) { 12440 } 12441 } 12442#if 0 12443 printf("ctl_abort_task: found I/O to abort\n"); 12444#endif 12445 break; 12446 } 12447 } 12448 } 12449 mtx_unlock(&lun->lun_lock); 12450 12451 if (found == 0) { 12452 /* 12453 * This isn't really an error. It's entirely possible for 12454 * the abort and command completion to cross on the wire. 12455 * This is more of an informative/diagnostic error. 12456 */ 12457#if 0 12458 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12459 "%d:%d:%d:%d tag %d type %d\n", 12460 io->io_hdr.nexus.initid.id, 12461 io->io_hdr.nexus.targ_port, 12462 io->io_hdr.nexus.targ_target.id, 12463 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12464 io->taskio.tag_type); 12465#endif 12466 } 12467 return (0); 12468} 12469 12470static void 12471ctl_run_task(union ctl_io *io) 12472{ 12473 struct ctl_softc *ctl_softc = control_softc; 12474 int retval = 1; 12475 const char *task_desc; 12476 12477 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12478 12479 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12480 ("ctl_run_task: Unextected io_type %d\n", 12481 io->io_hdr.io_type)); 12482 12483 task_desc = ctl_scsi_task_string(&io->taskio); 12484 if (task_desc != NULL) { 12485#ifdef NEEDTOPORT 12486 csevent_log(CSC_CTL | CSC_SHELF_SW | 12487 CTL_TASK_REPORT, 12488 csevent_LogType_Trace, 12489 csevent_Severity_Information, 12490 csevent_AlertLevel_Green, 12491 csevent_FRU_Firmware, 12492 csevent_FRU_Unknown, 12493 "CTL: received task: %s",task_desc); 12494#endif 12495 } else { 12496#ifdef NEEDTOPORT 12497 csevent_log(CSC_CTL | CSC_SHELF_SW | 12498 CTL_TASK_REPORT, 12499 csevent_LogType_Trace, 12500 csevent_Severity_Information, 12501 csevent_AlertLevel_Green, 12502 csevent_FRU_Firmware, 12503 csevent_FRU_Unknown, 12504 "CTL: received unknown task " 12505 "type: %d (%#x)", 12506 io->taskio.task_action, 12507 io->taskio.task_action); 12508#endif 12509 } 12510 switch (io->taskio.task_action) { 12511 case CTL_TASK_ABORT_TASK: 12512 retval = ctl_abort_task(io); 12513 break; 12514 case CTL_TASK_ABORT_TASK_SET: 12515 case CTL_TASK_CLEAR_TASK_SET: 12516 retval = ctl_abort_task_set(io); 12517 break; 12518 case CTL_TASK_CLEAR_ACA: 12519 break; 12520 case CTL_TASK_I_T_NEXUS_RESET: 12521 retval = ctl_i_t_nexus_reset(io); 12522 break; 12523 case CTL_TASK_LUN_RESET: { 12524 struct ctl_lun *lun; 12525 uint32_t targ_lun; 12526 12527 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12528 mtx_lock(&ctl_softc->ctl_lock); 12529 if ((targ_lun < CTL_MAX_LUNS) 12530 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12531 lun = ctl_softc->ctl_luns[targ_lun]; 12532 else { 12533 mtx_unlock(&ctl_softc->ctl_lock); 12534 retval = 1; 12535 break; 12536 } 12537 12538 if (!(io->io_hdr.flags & 12539 CTL_FLAG_FROM_OTHER_SC)) { 12540 union ctl_ha_msg msg_info; 12541 12542 io->io_hdr.flags |= 12543 CTL_FLAG_SENT_2OTHER_SC; 12544 msg_info.hdr.msg_type = 12545 CTL_MSG_MANAGE_TASKS; 12546 msg_info.hdr.nexus = io->io_hdr.nexus; 12547 msg_info.task.task_action = 12548 CTL_TASK_LUN_RESET; 12549 msg_info.hdr.original_sc = NULL; 12550 msg_info.hdr.serializing_sc = NULL; 12551 if (CTL_HA_STATUS_SUCCESS != 12552 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12553 (void *)&msg_info, 12554 sizeof(msg_info), 0)) { 12555 } 12556 } 12557 12558 retval = ctl_lun_reset(lun, io, 12559 CTL_UA_LUN_RESET); 12560 mtx_unlock(&ctl_softc->ctl_lock); 12561 break; 12562 } 12563 case CTL_TASK_TARGET_RESET: 12564 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12565 break; 12566 case CTL_TASK_BUS_RESET: 12567 retval = ctl_bus_reset(ctl_softc, io); 12568 break; 12569 case CTL_TASK_PORT_LOGIN: 12570 break; 12571 case CTL_TASK_PORT_LOGOUT: 12572 break; 12573 default: 12574 printf("ctl_run_task: got unknown task management event %d\n", 12575 io->taskio.task_action); 12576 break; 12577 } 12578 if (retval == 0) 12579 io->io_hdr.status = CTL_SUCCESS; 12580 else 12581 io->io_hdr.status = CTL_ERROR; 12582 ctl_done(io); 12583} 12584 12585/* 12586 * For HA operation. Handle commands that come in from the other 12587 * controller. 12588 */ 12589static void 12590ctl_handle_isc(union ctl_io *io) 12591{ 12592 int free_io; 12593 struct ctl_lun *lun; 12594 struct ctl_softc *ctl_softc; 12595 uint32_t targ_lun; 12596 12597 ctl_softc = control_softc; 12598 12599 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12600 lun = ctl_softc->ctl_luns[targ_lun]; 12601 12602 switch (io->io_hdr.msg_type) { 12603 case CTL_MSG_SERIALIZE: 12604 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12605 break; 12606 case CTL_MSG_R2R: { 12607 const struct ctl_cmd_entry *entry; 12608 12609 /* 12610 * This is only used in SER_ONLY mode. 12611 */ 12612 free_io = 0; 12613 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12614 mtx_lock(&lun->lun_lock); 12615 if (ctl_scsiio_lun_check(ctl_softc, lun, 12616 entry, (struct ctl_scsiio *)io) != 0) { 12617 mtx_unlock(&lun->lun_lock); 12618 ctl_done(io); 12619 break; 12620 } 12621 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12622 mtx_unlock(&lun->lun_lock); 12623 ctl_enqueue_rtr(io); 12624 break; 12625 } 12626 case CTL_MSG_FINISH_IO: 12627 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12628 free_io = 0; 12629 ctl_done(io); 12630 } else { 12631 free_io = 1; 12632 mtx_lock(&lun->lun_lock); 12633 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12634 ooa_links); 12635 ctl_check_blocked(lun); 12636 mtx_unlock(&lun->lun_lock); 12637 } 12638 break; 12639 case CTL_MSG_PERS_ACTION: 12640 ctl_hndl_per_res_out_on_other_sc( 12641 (union ctl_ha_msg *)&io->presio.pr_msg); 12642 free_io = 1; 12643 break; 12644 case CTL_MSG_BAD_JUJU: 12645 free_io = 0; 12646 ctl_done(io); 12647 break; 12648 case CTL_MSG_DATAMOVE: 12649 /* Only used in XFER mode */ 12650 free_io = 0; 12651 ctl_datamove_remote(io); 12652 break; 12653 case CTL_MSG_DATAMOVE_DONE: 12654 /* Only used in XFER mode */ 12655 free_io = 0; 12656 io->scsiio.be_move_done(io); 12657 break; 12658 default: 12659 free_io = 1; 12660 printf("%s: Invalid message type %d\n", 12661 __func__, io->io_hdr.msg_type); 12662 break; 12663 } 12664 if (free_io) 12665 ctl_free_io(io); 12666 12667} 12668 12669 12670/* 12671 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12672 * there is no match. 12673 */ 12674static ctl_lun_error_pattern 12675ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12676{ 12677 const struct ctl_cmd_entry *entry; 12678 ctl_lun_error_pattern filtered_pattern, pattern; 12679 12680 pattern = desc->error_pattern; 12681 12682 /* 12683 * XXX KDM we need more data passed into this function to match a 12684 * custom pattern, and we actually need to implement custom pattern 12685 * matching. 12686 */ 12687 if (pattern & CTL_LUN_PAT_CMD) 12688 return (CTL_LUN_PAT_CMD); 12689 12690 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12691 return (CTL_LUN_PAT_ANY); 12692 12693 entry = ctl_get_cmd_entry(ctsio, NULL); 12694 12695 filtered_pattern = entry->pattern & pattern; 12696 12697 /* 12698 * If the user requested specific flags in the pattern (e.g. 12699 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12700 * flags. 12701 * 12702 * If the user did not specify any flags, it doesn't matter whether 12703 * or not the command supports the flags. 12704 */ 12705 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12706 (pattern & ~CTL_LUN_PAT_MASK)) 12707 return (CTL_LUN_PAT_NONE); 12708 12709 /* 12710 * If the user asked for a range check, see if the requested LBA 12711 * range overlaps with this command's LBA range. 12712 */ 12713 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12714 uint64_t lba1; 12715 uint64_t len1; 12716 ctl_action action; 12717 int retval; 12718 12719 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12720 if (retval != 0) 12721 return (CTL_LUN_PAT_NONE); 12722 12723 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12724 desc->lba_range.len); 12725 /* 12726 * A "pass" means that the LBA ranges don't overlap, so 12727 * this doesn't match the user's range criteria. 12728 */ 12729 if (action == CTL_ACTION_PASS) 12730 return (CTL_LUN_PAT_NONE); 12731 } 12732 12733 return (filtered_pattern); 12734} 12735 12736static void 12737ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12738{ 12739 struct ctl_error_desc *desc, *desc2; 12740 12741 mtx_assert(&lun->lun_lock, MA_OWNED); 12742 12743 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12744 ctl_lun_error_pattern pattern; 12745 /* 12746 * Check to see whether this particular command matches 12747 * the pattern in the descriptor. 12748 */ 12749 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12750 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12751 continue; 12752 12753 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12754 case CTL_LUN_INJ_ABORTED: 12755 ctl_set_aborted(&io->scsiio); 12756 break; 12757 case CTL_LUN_INJ_MEDIUM_ERR: 12758 ctl_set_medium_error(&io->scsiio); 12759 break; 12760 case CTL_LUN_INJ_UA: 12761 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12762 * OCCURRED */ 12763 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12764 break; 12765 case CTL_LUN_INJ_CUSTOM: 12766 /* 12767 * We're assuming the user knows what he is doing. 12768 * Just copy the sense information without doing 12769 * checks. 12770 */ 12771 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12772 ctl_min(sizeof(desc->custom_sense), 12773 sizeof(io->scsiio.sense_data))); 12774 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12775 io->scsiio.sense_len = SSD_FULL_SIZE; 12776 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12777 break; 12778 case CTL_LUN_INJ_NONE: 12779 default: 12780 /* 12781 * If this is an error injection type we don't know 12782 * about, clear the continuous flag (if it is set) 12783 * so it will get deleted below. 12784 */ 12785 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12786 break; 12787 } 12788 /* 12789 * By default, each error injection action is a one-shot 12790 */ 12791 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12792 continue; 12793 12794 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12795 12796 free(desc, M_CTL); 12797 } 12798} 12799 12800#ifdef CTL_IO_DELAY 12801static void 12802ctl_datamove_timer_wakeup(void *arg) 12803{ 12804 union ctl_io *io; 12805 12806 io = (union ctl_io *)arg; 12807 12808 ctl_datamove(io); 12809} 12810#endif /* CTL_IO_DELAY */ 12811 12812void 12813ctl_datamove(union ctl_io *io) 12814{ 12815 void (*fe_datamove)(union ctl_io *io); 12816 12817 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12818 12819 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12820 12821#ifdef CTL_TIME_IO 12822 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12823 char str[256]; 12824 char path_str[64]; 12825 struct sbuf sb; 12826 12827 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12828 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12829 12830 sbuf_cat(&sb, path_str); 12831 switch (io->io_hdr.io_type) { 12832 case CTL_IO_SCSI: 12833 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12834 sbuf_printf(&sb, "\n"); 12835 sbuf_cat(&sb, path_str); 12836 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12837 io->scsiio.tag_num, io->scsiio.tag_type); 12838 break; 12839 case CTL_IO_TASK: 12840 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12841 "Tag Type: %d\n", io->taskio.task_action, 12842 io->taskio.tag_num, io->taskio.tag_type); 12843 break; 12844 default: 12845 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12846 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12847 break; 12848 } 12849 sbuf_cat(&sb, path_str); 12850 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12851 (intmax_t)time_uptime - io->io_hdr.start_time); 12852 sbuf_finish(&sb); 12853 printf("%s", sbuf_data(&sb)); 12854 } 12855#endif /* CTL_TIME_IO */ 12856 12857#ifdef CTL_IO_DELAY 12858 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12859 struct ctl_lun *lun; 12860 12861 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12862 12863 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12864 } else { 12865 struct ctl_lun *lun; 12866 12867 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12868 if ((lun != NULL) 12869 && (lun->delay_info.datamove_delay > 0)) { 12870 struct callout *callout; 12871 12872 callout = (struct callout *)&io->io_hdr.timer_bytes; 12873 callout_init(callout, /*mpsafe*/ 1); 12874 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12875 callout_reset(callout, 12876 lun->delay_info.datamove_delay * hz, 12877 ctl_datamove_timer_wakeup, io); 12878 if (lun->delay_info.datamove_type == 12879 CTL_DELAY_TYPE_ONESHOT) 12880 lun->delay_info.datamove_delay = 0; 12881 return; 12882 } 12883 } 12884#endif 12885 12886 /* 12887 * This command has been aborted. Set the port status, so we fail 12888 * the data move. 12889 */ 12890 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12891 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12892 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12893 io->io_hdr.nexus.targ_port, 12894 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12895 io->io_hdr.nexus.targ_lun); 12896 io->io_hdr.port_status = 31337; 12897 /* 12898 * Note that the backend, in this case, will get the 12899 * callback in its context. In other cases it may get 12900 * called in the frontend's interrupt thread context. 12901 */ 12902 io->scsiio.be_move_done(io); 12903 return; 12904 } 12905 12906 /* 12907 * If we're in XFER mode and this I/O is from the other shelf 12908 * controller, we need to send the DMA to the other side to 12909 * actually transfer the data to/from the host. In serialize only 12910 * mode the transfer happens below CTL and ctl_datamove() is only 12911 * called on the machine that originally received the I/O. 12912 */ 12913 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12914 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12915 union ctl_ha_msg msg; 12916 uint32_t sg_entries_sent; 12917 int do_sg_copy; 12918 int i; 12919 12920 memset(&msg, 0, sizeof(msg)); 12921 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12922 msg.hdr.original_sc = io->io_hdr.original_sc; 12923 msg.hdr.serializing_sc = io; 12924 msg.hdr.nexus = io->io_hdr.nexus; 12925 msg.dt.flags = io->io_hdr.flags; 12926 /* 12927 * We convert everything into a S/G list here. We can't 12928 * pass by reference, only by value between controllers. 12929 * So we can't pass a pointer to the S/G list, only as many 12930 * S/G entries as we can fit in here. If it's possible for 12931 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12932 * then we need to break this up into multiple transfers. 12933 */ 12934 if (io->scsiio.kern_sg_entries == 0) { 12935 msg.dt.kern_sg_entries = 1; 12936 /* 12937 * If this is in cached memory, flush the cache 12938 * before we send the DMA request to the other 12939 * controller. We want to do this in either the 12940 * read or the write case. The read case is 12941 * straightforward. In the write case, we want to 12942 * make sure nothing is in the local cache that 12943 * could overwrite the DMAed data. 12944 */ 12945 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12946 /* 12947 * XXX KDM use bus_dmamap_sync() here. 12948 */ 12949 } 12950 12951 /* 12952 * Convert to a physical address if this is a 12953 * virtual address. 12954 */ 12955 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12956 msg.dt.sg_list[0].addr = 12957 io->scsiio.kern_data_ptr; 12958 } else { 12959 /* 12960 * XXX KDM use busdma here! 12961 */ 12962#if 0 12963 msg.dt.sg_list[0].addr = (void *) 12964 vtophys(io->scsiio.kern_data_ptr); 12965#endif 12966 } 12967 12968 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12969 do_sg_copy = 0; 12970 } else { 12971 struct ctl_sg_entry *sgl; 12972 12973 do_sg_copy = 1; 12974 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12975 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12976 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12977 /* 12978 * XXX KDM use bus_dmamap_sync() here. 12979 */ 12980 } 12981 } 12982 12983 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12984 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12985 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12986 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12987 msg.dt.sg_sequence = 0; 12988 12989 /* 12990 * Loop until we've sent all of the S/G entries. On the 12991 * other end, we'll recompose these S/G entries into one 12992 * contiguous list before passing it to the 12993 */ 12994 for (sg_entries_sent = 0; sg_entries_sent < 12995 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12996 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12997 sizeof(msg.dt.sg_list[0])), 12998 msg.dt.kern_sg_entries - sg_entries_sent); 12999 13000 if (do_sg_copy != 0) { 13001 struct ctl_sg_entry *sgl; 13002 int j; 13003 13004 sgl = (struct ctl_sg_entry *) 13005 io->scsiio.kern_data_ptr; 13006 /* 13007 * If this is in cached memory, flush the cache 13008 * before we send the DMA request to the other 13009 * controller. We want to do this in either 13010 * the * read or the write case. The read 13011 * case is straightforward. In the write 13012 * case, we want to make sure nothing is 13013 * in the local cache that could overwrite 13014 * the DMAed data. 13015 */ 13016 13017 for (i = sg_entries_sent, j = 0; 13018 i < msg.dt.cur_sg_entries; i++, j++) { 13019 if ((io->io_hdr.flags & 13020 CTL_FLAG_NO_DATASYNC) == 0) { 13021 /* 13022 * XXX KDM use bus_dmamap_sync() 13023 */ 13024 } 13025 if ((io->io_hdr.flags & 13026 CTL_FLAG_BUS_ADDR) == 0) { 13027 /* 13028 * XXX KDM use busdma. 13029 */ 13030#if 0 13031 msg.dt.sg_list[j].addr =(void *) 13032 vtophys(sgl[i].addr); 13033#endif 13034 } else { 13035 msg.dt.sg_list[j].addr = 13036 sgl[i].addr; 13037 } 13038 msg.dt.sg_list[j].len = sgl[i].len; 13039 } 13040 } 13041 13042 sg_entries_sent += msg.dt.cur_sg_entries; 13043 if (sg_entries_sent >= msg.dt.kern_sg_entries) 13044 msg.dt.sg_last = 1; 13045 else 13046 msg.dt.sg_last = 0; 13047 13048 /* 13049 * XXX KDM drop and reacquire the lock here? 13050 */ 13051 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13052 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13053 /* 13054 * XXX do something here. 13055 */ 13056 } 13057 13058 msg.dt.sent_sg_entries = sg_entries_sent; 13059 } 13060 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13061 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 13062 ctl_failover_io(io, /*have_lock*/ 0); 13063 13064 } else { 13065 13066 /* 13067 * Lookup the fe_datamove() function for this particular 13068 * front end. 13069 */ 13070 fe_datamove = 13071 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13072 13073 fe_datamove(io); 13074 } 13075} 13076 13077static void 13078ctl_send_datamove_done(union ctl_io *io, int have_lock) 13079{ 13080 union ctl_ha_msg msg; 13081 int isc_status; 13082 13083 memset(&msg, 0, sizeof(msg)); 13084 13085 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 13086 msg.hdr.original_sc = io; 13087 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13088 msg.hdr.nexus = io->io_hdr.nexus; 13089 msg.hdr.status = io->io_hdr.status; 13090 msg.scsi.tag_num = io->scsiio.tag_num; 13091 msg.scsi.tag_type = io->scsiio.tag_type; 13092 msg.scsi.scsi_status = io->scsiio.scsi_status; 13093 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13094 sizeof(io->scsiio.sense_data)); 13095 msg.scsi.sense_len = io->scsiio.sense_len; 13096 msg.scsi.sense_residual = io->scsiio.sense_residual; 13097 msg.scsi.fetd_status = io->io_hdr.port_status; 13098 msg.scsi.residual = io->scsiio.residual; 13099 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13100 13101 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13102 ctl_failover_io(io, /*have_lock*/ have_lock); 13103 return; 13104 } 13105 13106 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 13107 if (isc_status > CTL_HA_STATUS_SUCCESS) { 13108 /* XXX do something if this fails */ 13109 } 13110 13111} 13112 13113/* 13114 * The DMA to the remote side is done, now we need to tell the other side 13115 * we're done so it can continue with its data movement. 13116 */ 13117static void 13118ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 13119{ 13120 union ctl_io *io; 13121 13122 io = rq->context; 13123 13124 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13125 printf("%s: ISC DMA write failed with error %d", __func__, 13126 rq->ret); 13127 ctl_set_internal_failure(&io->scsiio, 13128 /*sks_valid*/ 1, 13129 /*retry_count*/ rq->ret); 13130 } 13131 13132 ctl_dt_req_free(rq); 13133 13134 /* 13135 * In this case, we had to malloc the memory locally. Free it. 13136 */ 13137 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13138 int i; 13139 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13140 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13141 } 13142 /* 13143 * The data is in local and remote memory, so now we need to send 13144 * status (good or back) back to the other side. 13145 */ 13146 ctl_send_datamove_done(io, /*have_lock*/ 0); 13147} 13148 13149/* 13150 * We've moved the data from the host/controller into local memory. Now we 13151 * need to push it over to the remote controller's memory. 13152 */ 13153static int 13154ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13155{ 13156 int retval; 13157 13158 retval = 0; 13159 13160 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13161 ctl_datamove_remote_write_cb); 13162 13163 return (retval); 13164} 13165 13166static void 13167ctl_datamove_remote_write(union ctl_io *io) 13168{ 13169 int retval; 13170 void (*fe_datamove)(union ctl_io *io); 13171 13172 /* 13173 * - Get the data from the host/HBA into local memory. 13174 * - DMA memory from the local controller to the remote controller. 13175 * - Send status back to the remote controller. 13176 */ 13177 13178 retval = ctl_datamove_remote_sgl_setup(io); 13179 if (retval != 0) 13180 return; 13181 13182 /* Switch the pointer over so the FETD knows what to do */ 13183 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13184 13185 /* 13186 * Use a custom move done callback, since we need to send completion 13187 * back to the other controller, not to the backend on this side. 13188 */ 13189 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13190 13191 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13192 13193 fe_datamove(io); 13194 13195 return; 13196 13197} 13198 13199static int 13200ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13201{ 13202#if 0 13203 char str[256]; 13204 char path_str[64]; 13205 struct sbuf sb; 13206#endif 13207 13208 /* 13209 * In this case, we had to malloc the memory locally. Free it. 13210 */ 13211 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13212 int i; 13213 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13214 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13215 } 13216 13217#if 0 13218 scsi_path_string(io, path_str, sizeof(path_str)); 13219 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13220 sbuf_cat(&sb, path_str); 13221 scsi_command_string(&io->scsiio, NULL, &sb); 13222 sbuf_printf(&sb, "\n"); 13223 sbuf_cat(&sb, path_str); 13224 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13225 io->scsiio.tag_num, io->scsiio.tag_type); 13226 sbuf_cat(&sb, path_str); 13227 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13228 io->io_hdr.flags, io->io_hdr.status); 13229 sbuf_finish(&sb); 13230 printk("%s", sbuf_data(&sb)); 13231#endif 13232 13233 13234 /* 13235 * The read is done, now we need to send status (good or bad) back 13236 * to the other side. 13237 */ 13238 ctl_send_datamove_done(io, /*have_lock*/ 0); 13239 13240 return (0); 13241} 13242 13243static void 13244ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13245{ 13246 union ctl_io *io; 13247 void (*fe_datamove)(union ctl_io *io); 13248 13249 io = rq->context; 13250 13251 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13252 printf("%s: ISC DMA read failed with error %d", __func__, 13253 rq->ret); 13254 ctl_set_internal_failure(&io->scsiio, 13255 /*sks_valid*/ 1, 13256 /*retry_count*/ rq->ret); 13257 } 13258 13259 ctl_dt_req_free(rq); 13260 13261 /* Switch the pointer over so the FETD knows what to do */ 13262 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13263 13264 /* 13265 * Use a custom move done callback, since we need to send completion 13266 * back to the other controller, not to the backend on this side. 13267 */ 13268 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13269 13270 /* XXX KDM add checks like the ones in ctl_datamove? */ 13271 13272 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13273 13274 fe_datamove(io); 13275} 13276 13277static int 13278ctl_datamove_remote_sgl_setup(union ctl_io *io) 13279{ 13280 struct ctl_sg_entry *local_sglist, *remote_sglist; 13281 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13282 struct ctl_softc *softc; 13283 int retval; 13284 int i; 13285 13286 retval = 0; 13287 softc = control_softc; 13288 13289 local_sglist = io->io_hdr.local_sglist; 13290 local_dma_sglist = io->io_hdr.local_dma_sglist; 13291 remote_sglist = io->io_hdr.remote_sglist; 13292 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13293 13294 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13295 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13296 local_sglist[i].len = remote_sglist[i].len; 13297 13298 /* 13299 * XXX Detect the situation where the RS-level I/O 13300 * redirector on the other side has already read the 13301 * data off of the AOR RS on this side, and 13302 * transferred it to remote (mirror) memory on the 13303 * other side. Since we already have the data in 13304 * memory here, we just need to use it. 13305 * 13306 * XXX KDM this can probably be removed once we 13307 * get the cache device code in and take the 13308 * current AOR implementation out. 13309 */ 13310#ifdef NEEDTOPORT 13311 if ((remote_sglist[i].addr >= 13312 (void *)vtophys(softc->mirr->addr)) 13313 && (remote_sglist[i].addr < 13314 ((void *)vtophys(softc->mirr->addr) + 13315 CacheMirrorOffset))) { 13316 local_sglist[i].addr = remote_sglist[i].addr - 13317 CacheMirrorOffset; 13318 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13319 CTL_FLAG_DATA_IN) 13320 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13321 } else { 13322 local_sglist[i].addr = remote_sglist[i].addr + 13323 CacheMirrorOffset; 13324 } 13325#endif 13326#if 0 13327 printf("%s: local %p, remote %p, len %d\n", 13328 __func__, local_sglist[i].addr, 13329 remote_sglist[i].addr, local_sglist[i].len); 13330#endif 13331 } 13332 } else { 13333 uint32_t len_to_go; 13334 13335 /* 13336 * In this case, we don't have automatically allocated 13337 * memory for this I/O on this controller. This typically 13338 * happens with internal CTL I/O -- e.g. inquiry, mode 13339 * sense, etc. Anything coming from RAIDCore will have 13340 * a mirror area available. 13341 */ 13342 len_to_go = io->scsiio.kern_data_len; 13343 13344 /* 13345 * Clear the no datasync flag, we have to use malloced 13346 * buffers. 13347 */ 13348 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13349 13350 /* 13351 * The difficult thing here is that the size of the various 13352 * S/G segments may be different than the size from the 13353 * remote controller. That'll make it harder when DMAing 13354 * the data back to the other side. 13355 */ 13356 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13357 sizeof(io->io_hdr.remote_sglist[0])) && 13358 (len_to_go > 0); i++) { 13359 local_sglist[i].len = ctl_min(len_to_go, 131072); 13360 CTL_SIZE_8B(local_dma_sglist[i].len, 13361 local_sglist[i].len); 13362 local_sglist[i].addr = 13363 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13364 13365 local_dma_sglist[i].addr = local_sglist[i].addr; 13366 13367 if (local_sglist[i].addr == NULL) { 13368 int j; 13369 13370 printf("malloc failed for %zd bytes!", 13371 local_dma_sglist[i].len); 13372 for (j = 0; j < i; j++) { 13373 free(local_sglist[j].addr, M_CTL); 13374 } 13375 ctl_set_internal_failure(&io->scsiio, 13376 /*sks_valid*/ 1, 13377 /*retry_count*/ 4857); 13378 retval = 1; 13379 goto bailout_error; 13380 13381 } 13382 /* XXX KDM do we need a sync here? */ 13383 13384 len_to_go -= local_sglist[i].len; 13385 } 13386 /* 13387 * Reset the number of S/G entries accordingly. The 13388 * original number of S/G entries is available in 13389 * rem_sg_entries. 13390 */ 13391 io->scsiio.kern_sg_entries = i; 13392 13393#if 0 13394 printf("%s: kern_sg_entries = %d\n", __func__, 13395 io->scsiio.kern_sg_entries); 13396 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13397 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13398 local_sglist[i].addr, local_sglist[i].len, 13399 local_dma_sglist[i].len); 13400#endif 13401 } 13402 13403 13404 return (retval); 13405 13406bailout_error: 13407 13408 ctl_send_datamove_done(io, /*have_lock*/ 0); 13409 13410 return (retval); 13411} 13412 13413static int 13414ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13415 ctl_ha_dt_cb callback) 13416{ 13417 struct ctl_ha_dt_req *rq; 13418 struct ctl_sg_entry *remote_sglist, *local_sglist; 13419 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13420 uint32_t local_used, remote_used, total_used; 13421 int retval; 13422 int i, j; 13423 13424 retval = 0; 13425 13426 rq = ctl_dt_req_alloc(); 13427 13428 /* 13429 * If we failed to allocate the request, and if the DMA didn't fail 13430 * anyway, set busy status. This is just a resource allocation 13431 * failure. 13432 */ 13433 if ((rq == NULL) 13434 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13435 ctl_set_busy(&io->scsiio); 13436 13437 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13438 13439 if (rq != NULL) 13440 ctl_dt_req_free(rq); 13441 13442 /* 13443 * The data move failed. We need to return status back 13444 * to the other controller. No point in trying to DMA 13445 * data to the remote controller. 13446 */ 13447 13448 ctl_send_datamove_done(io, /*have_lock*/ 0); 13449 13450 retval = 1; 13451 13452 goto bailout; 13453 } 13454 13455 local_sglist = io->io_hdr.local_sglist; 13456 local_dma_sglist = io->io_hdr.local_dma_sglist; 13457 remote_sglist = io->io_hdr.remote_sglist; 13458 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13459 local_used = 0; 13460 remote_used = 0; 13461 total_used = 0; 13462 13463 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13464 rq->ret = CTL_HA_STATUS_SUCCESS; 13465 rq->context = io; 13466 callback(rq); 13467 goto bailout; 13468 } 13469 13470 /* 13471 * Pull/push the data over the wire from/to the other controller. 13472 * This takes into account the possibility that the local and 13473 * remote sglists may not be identical in terms of the size of 13474 * the elements and the number of elements. 13475 * 13476 * One fundamental assumption here is that the length allocated for 13477 * both the local and remote sglists is identical. Otherwise, we've 13478 * essentially got a coding error of some sort. 13479 */ 13480 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13481 int isc_ret; 13482 uint32_t cur_len, dma_length; 13483 uint8_t *tmp_ptr; 13484 13485 rq->id = CTL_HA_DATA_CTL; 13486 rq->command = command; 13487 rq->context = io; 13488 13489 /* 13490 * Both pointers should be aligned. But it is possible 13491 * that the allocation length is not. They should both 13492 * also have enough slack left over at the end, though, 13493 * to round up to the next 8 byte boundary. 13494 */ 13495 cur_len = ctl_min(local_sglist[i].len - local_used, 13496 remote_sglist[j].len - remote_used); 13497 13498 /* 13499 * In this case, we have a size issue and need to decrease 13500 * the size, except in the case where we actually have less 13501 * than 8 bytes left. In that case, we need to increase 13502 * the DMA length to get the last bit. 13503 */ 13504 if ((cur_len & 0x7) != 0) { 13505 if (cur_len > 0x7) { 13506 cur_len = cur_len - (cur_len & 0x7); 13507 dma_length = cur_len; 13508 } else { 13509 CTL_SIZE_8B(dma_length, cur_len); 13510 } 13511 13512 } else 13513 dma_length = cur_len; 13514 13515 /* 13516 * If we had to allocate memory for this I/O, instead of using 13517 * the non-cached mirror memory, we'll need to flush the cache 13518 * before trying to DMA to the other controller. 13519 * 13520 * We could end up doing this multiple times for the same 13521 * segment if we have a larger local segment than remote 13522 * segment. That shouldn't be an issue. 13523 */ 13524 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13525 /* 13526 * XXX KDM use bus_dmamap_sync() here. 13527 */ 13528 } 13529 13530 rq->size = dma_length; 13531 13532 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13533 tmp_ptr += local_used; 13534 13535 /* Use physical addresses when talking to ISC hardware */ 13536 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13537 /* XXX KDM use busdma */ 13538#if 0 13539 rq->local = vtophys(tmp_ptr); 13540#endif 13541 } else 13542 rq->local = tmp_ptr; 13543 13544 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13545 tmp_ptr += remote_used; 13546 rq->remote = tmp_ptr; 13547 13548 rq->callback = NULL; 13549 13550 local_used += cur_len; 13551 if (local_used >= local_sglist[i].len) { 13552 i++; 13553 local_used = 0; 13554 } 13555 13556 remote_used += cur_len; 13557 if (remote_used >= remote_sglist[j].len) { 13558 j++; 13559 remote_used = 0; 13560 } 13561 total_used += cur_len; 13562 13563 if (total_used >= io->scsiio.kern_data_len) 13564 rq->callback = callback; 13565 13566 if ((rq->size & 0x7) != 0) { 13567 printf("%s: warning: size %d is not on 8b boundary\n", 13568 __func__, rq->size); 13569 } 13570 if (((uintptr_t)rq->local & 0x7) != 0) { 13571 printf("%s: warning: local %p not on 8b boundary\n", 13572 __func__, rq->local); 13573 } 13574 if (((uintptr_t)rq->remote & 0x7) != 0) { 13575 printf("%s: warning: remote %p not on 8b boundary\n", 13576 __func__, rq->local); 13577 } 13578#if 0 13579 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13580 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13581 rq->local, rq->remote, rq->size); 13582#endif 13583 13584 isc_ret = ctl_dt_single(rq); 13585 if (isc_ret == CTL_HA_STATUS_WAIT) 13586 continue; 13587 13588 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13589 rq->ret = CTL_HA_STATUS_SUCCESS; 13590 } else { 13591 rq->ret = isc_ret; 13592 } 13593 callback(rq); 13594 goto bailout; 13595 } 13596 13597bailout: 13598 return (retval); 13599 13600} 13601 13602static void 13603ctl_datamove_remote_read(union ctl_io *io) 13604{ 13605 int retval; 13606 int i; 13607 13608 /* 13609 * This will send an error to the other controller in the case of a 13610 * failure. 13611 */ 13612 retval = ctl_datamove_remote_sgl_setup(io); 13613 if (retval != 0) 13614 return; 13615 13616 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13617 ctl_datamove_remote_read_cb); 13618 if ((retval != 0) 13619 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13620 /* 13621 * Make sure we free memory if there was an error.. The 13622 * ctl_datamove_remote_xfer() function will send the 13623 * datamove done message, or call the callback with an 13624 * error if there is a problem. 13625 */ 13626 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13627 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13628 } 13629 13630 return; 13631} 13632 13633/* 13634 * Process a datamove request from the other controller. This is used for 13635 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13636 * first. Once that is complete, the data gets DMAed into the remote 13637 * controller's memory. For reads, we DMA from the remote controller's 13638 * memory into our memory first, and then move it out to the FETD. 13639 */ 13640static void 13641ctl_datamove_remote(union ctl_io *io) 13642{ 13643 struct ctl_softc *softc; 13644 13645 softc = control_softc; 13646 13647 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13648 13649 /* 13650 * Note that we look for an aborted I/O here, but don't do some of 13651 * the other checks that ctl_datamove() normally does. 13652 * We don't need to run the datamove delay code, since that should 13653 * have been done if need be on the other controller. 13654 */ 13655 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13656 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13657 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13658 io->io_hdr.nexus.targ_port, 13659 io->io_hdr.nexus.targ_target.id, 13660 io->io_hdr.nexus.targ_lun); 13661 io->io_hdr.port_status = 31338; 13662 ctl_send_datamove_done(io, /*have_lock*/ 0); 13663 return; 13664 } 13665 13666 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13667 ctl_datamove_remote_write(io); 13668 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13669 ctl_datamove_remote_read(io); 13670 } else { 13671 union ctl_ha_msg msg; 13672 struct scsi_sense_data *sense; 13673 uint8_t sks[3]; 13674 int retry_count; 13675 13676 memset(&msg, 0, sizeof(msg)); 13677 13678 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13679 msg.hdr.status = CTL_SCSI_ERROR; 13680 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13681 13682 retry_count = 4243; 13683 13684 sense = &msg.scsi.sense_data; 13685 sks[0] = SSD_SCS_VALID; 13686 sks[1] = (retry_count >> 8) & 0xff; 13687 sks[2] = retry_count & 0xff; 13688 13689 /* "Internal target failure" */ 13690 scsi_set_sense_data(sense, 13691 /*sense_format*/ SSD_TYPE_NONE, 13692 /*current_error*/ 1, 13693 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13694 /*asc*/ 0x44, 13695 /*ascq*/ 0x00, 13696 /*type*/ SSD_ELEM_SKS, 13697 /*size*/ sizeof(sks), 13698 /*data*/ sks, 13699 SSD_ELEM_NONE); 13700 13701 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13702 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13703 ctl_failover_io(io, /*have_lock*/ 1); 13704 return; 13705 } 13706 13707 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13708 CTL_HA_STATUS_SUCCESS) { 13709 /* XXX KDM what to do if this fails? */ 13710 } 13711 return; 13712 } 13713 13714} 13715 13716static int 13717ctl_process_done(union ctl_io *io) 13718{ 13719 struct ctl_lun *lun; 13720 struct ctl_softc *ctl_softc; 13721 void (*fe_done)(union ctl_io *io); 13722 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13723 13724 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13725 13726 fe_done = 13727 control_softc->ctl_ports[targ_port]->fe_done; 13728 13729#ifdef CTL_TIME_IO 13730 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13731 char str[256]; 13732 char path_str[64]; 13733 struct sbuf sb; 13734 13735 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13736 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13737 13738 sbuf_cat(&sb, path_str); 13739 switch (io->io_hdr.io_type) { 13740 case CTL_IO_SCSI: 13741 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13742 sbuf_printf(&sb, "\n"); 13743 sbuf_cat(&sb, path_str); 13744 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13745 io->scsiio.tag_num, io->scsiio.tag_type); 13746 break; 13747 case CTL_IO_TASK: 13748 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13749 "Tag Type: %d\n", io->taskio.task_action, 13750 io->taskio.tag_num, io->taskio.tag_type); 13751 break; 13752 default: 13753 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13754 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13755 break; 13756 } 13757 sbuf_cat(&sb, path_str); 13758 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13759 (intmax_t)time_uptime - io->io_hdr.start_time); 13760 sbuf_finish(&sb); 13761 printf("%s", sbuf_data(&sb)); 13762 } 13763#endif /* CTL_TIME_IO */ 13764 13765 switch (io->io_hdr.io_type) { 13766 case CTL_IO_SCSI: 13767 break; 13768 case CTL_IO_TASK: 13769 if (bootverbose || verbose > 0) 13770 ctl_io_error_print(io, NULL); 13771 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13772 ctl_free_io(io); 13773 else 13774 fe_done(io); 13775 return (CTL_RETVAL_COMPLETE); 13776 break; 13777 default: 13778 printf("ctl_process_done: invalid io type %d\n", 13779 io->io_hdr.io_type); 13780 panic("ctl_process_done: invalid io type %d\n", 13781 io->io_hdr.io_type); 13782 break; /* NOTREACHED */ 13783 } 13784 13785 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13786 if (lun == NULL) { 13787 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13788 io->io_hdr.nexus.targ_mapped_lun)); 13789 fe_done(io); 13790 goto bailout; 13791 } 13792 ctl_softc = lun->ctl_softc; 13793 13794 mtx_lock(&lun->lun_lock); 13795 13796 /* 13797 * Check to see if we have any errors to inject here. We only 13798 * inject errors for commands that don't already have errors set. 13799 */ 13800 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13801 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13802 ctl_inject_error(lun, io); 13803 13804 /* 13805 * XXX KDM how do we treat commands that aren't completed 13806 * successfully? 13807 * 13808 * XXX KDM should we also track I/O latency? 13809 */ 13810 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13811 io->io_hdr.io_type == CTL_IO_SCSI) { 13812#ifdef CTL_TIME_IO 13813 struct bintime cur_bt; 13814#endif 13815 int type; 13816 13817 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13818 CTL_FLAG_DATA_IN) 13819 type = CTL_STATS_READ; 13820 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13821 CTL_FLAG_DATA_OUT) 13822 type = CTL_STATS_WRITE; 13823 else 13824 type = CTL_STATS_NO_IO; 13825 13826 lun->stats.ports[targ_port].bytes[type] += 13827 io->scsiio.kern_total_len; 13828 lun->stats.ports[targ_port].operations[type]++; 13829#ifdef CTL_TIME_IO 13830 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13831 &io->io_hdr.dma_bt); 13832 lun->stats.ports[targ_port].num_dmas[type] += 13833 io->io_hdr.num_dmas; 13834 getbintime(&cur_bt); 13835 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13836 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13837#endif 13838 } 13839 13840 /* 13841 * Remove this from the OOA queue. 13842 */ 13843 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13844 13845 /* 13846 * Run through the blocked queue on this LUN and see if anything 13847 * has become unblocked, now that this transaction is done. 13848 */ 13849 ctl_check_blocked(lun); 13850 13851 /* 13852 * If the LUN has been invalidated, free it if there is nothing 13853 * left on its OOA queue. 13854 */ 13855 if ((lun->flags & CTL_LUN_INVALID) 13856 && TAILQ_EMPTY(&lun->ooa_queue)) { 13857 mtx_unlock(&lun->lun_lock); 13858 mtx_lock(&ctl_softc->ctl_lock); 13859 ctl_free_lun(lun); 13860 mtx_unlock(&ctl_softc->ctl_lock); 13861 } else 13862 mtx_unlock(&lun->lun_lock); 13863 13864 /* 13865 * If this command has been aborted, make sure we set the status 13866 * properly. The FETD is responsible for freeing the I/O and doing 13867 * whatever it needs to do to clean up its state. 13868 */ 13869 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13870 ctl_set_task_aborted(&io->scsiio); 13871 13872 /* 13873 * We print out status for every task management command. For SCSI 13874 * commands, we filter out any unit attention errors; they happen 13875 * on every boot, and would clutter up the log. Note: task 13876 * management commands aren't printed here, they are printed above, 13877 * since they should never even make it down here. 13878 */ 13879 switch (io->io_hdr.io_type) { 13880 case CTL_IO_SCSI: { 13881 int error_code, sense_key, asc, ascq; 13882 13883 sense_key = 0; 13884 13885 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13886 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13887 /* 13888 * Since this is just for printing, no need to 13889 * show errors here. 13890 */ 13891 scsi_extract_sense_len(&io->scsiio.sense_data, 13892 io->scsiio.sense_len, 13893 &error_code, 13894 &sense_key, 13895 &asc, 13896 &ascq, 13897 /*show_errors*/ 0); 13898 } 13899 13900 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13901 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13902 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13903 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13904 13905 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13906 ctl_softc->skipped_prints++; 13907 } else { 13908 uint32_t skipped_prints; 13909 13910 skipped_prints = ctl_softc->skipped_prints; 13911 13912 ctl_softc->skipped_prints = 0; 13913 ctl_softc->last_print_jiffies = time_uptime; 13914 13915 if (skipped_prints > 0) { 13916#ifdef NEEDTOPORT 13917 csevent_log(CSC_CTL | CSC_SHELF_SW | 13918 CTL_ERROR_REPORT, 13919 csevent_LogType_Trace, 13920 csevent_Severity_Information, 13921 csevent_AlertLevel_Green, 13922 csevent_FRU_Firmware, 13923 csevent_FRU_Unknown, 13924 "High CTL error volume, %d prints " 13925 "skipped", skipped_prints); 13926#endif 13927 } 13928 if (bootverbose || verbose > 0) 13929 ctl_io_error_print(io, NULL); 13930 } 13931 } 13932 break; 13933 } 13934 case CTL_IO_TASK: 13935 if (bootverbose || verbose > 0) 13936 ctl_io_error_print(io, NULL); 13937 break; 13938 default: 13939 break; 13940 } 13941 13942 /* 13943 * Tell the FETD or the other shelf controller we're done with this 13944 * command. Note that only SCSI commands get to this point. Task 13945 * management commands are completed above. 13946 * 13947 * We only send status to the other controller if we're in XFER 13948 * mode. In SER_ONLY mode, the I/O is done on the controller that 13949 * received the I/O (from CTL's perspective), and so the status is 13950 * generated there. 13951 * 13952 * XXX KDM if we hold the lock here, we could cause a deadlock 13953 * if the frontend comes back in in this context to queue 13954 * something. 13955 */ 13956 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13957 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13958 union ctl_ha_msg msg; 13959 13960 memset(&msg, 0, sizeof(msg)); 13961 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13962 msg.hdr.original_sc = io->io_hdr.original_sc; 13963 msg.hdr.nexus = io->io_hdr.nexus; 13964 msg.hdr.status = io->io_hdr.status; 13965 msg.scsi.scsi_status = io->scsiio.scsi_status; 13966 msg.scsi.tag_num = io->scsiio.tag_num; 13967 msg.scsi.tag_type = io->scsiio.tag_type; 13968 msg.scsi.sense_len = io->scsiio.sense_len; 13969 msg.scsi.sense_residual = io->scsiio.sense_residual; 13970 msg.scsi.residual = io->scsiio.residual; 13971 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13972 sizeof(io->scsiio.sense_data)); 13973 /* 13974 * We copy this whether or not this is an I/O-related 13975 * command. Otherwise, we'd have to go and check to see 13976 * whether it's a read/write command, and it really isn't 13977 * worth it. 13978 */ 13979 memcpy(&msg.scsi.lbalen, 13980 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13981 sizeof(msg.scsi.lbalen)); 13982 13983 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13984 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13985 /* XXX do something here */ 13986 } 13987 13988 ctl_free_io(io); 13989 } else 13990 fe_done(io); 13991 13992bailout: 13993 13994 return (CTL_RETVAL_COMPLETE); 13995} 13996 13997#ifdef CTL_WITH_CA 13998/* 13999 * Front end should call this if it doesn't do autosense. When the request 14000 * sense comes back in from the initiator, we'll dequeue this and send it. 14001 */ 14002int 14003ctl_queue_sense(union ctl_io *io) 14004{ 14005 struct ctl_lun *lun; 14006 struct ctl_softc *ctl_softc; 14007 uint32_t initidx, targ_lun; 14008 14009 ctl_softc = control_softc; 14010 14011 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 14012 14013 /* 14014 * LUN lookup will likely move to the ctl_work_thread() once we 14015 * have our new queueing infrastructure (that doesn't put things on 14016 * a per-LUN queue initially). That is so that we can handle 14017 * things like an INQUIRY to a LUN that we don't have enabled. We 14018 * can't deal with that right now. 14019 */ 14020 mtx_lock(&ctl_softc->ctl_lock); 14021 14022 /* 14023 * If we don't have a LUN for this, just toss the sense 14024 * information. 14025 */ 14026 targ_lun = io->io_hdr.nexus.targ_lun; 14027 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 14028 if ((targ_lun < CTL_MAX_LUNS) 14029 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 14030 lun = ctl_softc->ctl_luns[targ_lun]; 14031 else 14032 goto bailout; 14033 14034 initidx = ctl_get_initindex(&io->io_hdr.nexus); 14035 14036 mtx_lock(&lun->lun_lock); 14037 /* 14038 * Already have CA set for this LUN...toss the sense information. 14039 */ 14040 if (ctl_is_set(lun->have_ca, initidx)) { 14041 mtx_unlock(&lun->lun_lock); 14042 goto bailout; 14043 } 14044 14045 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 14046 ctl_min(sizeof(lun->pending_sense[initidx]), 14047 sizeof(io->scsiio.sense_data))); 14048 ctl_set_mask(lun->have_ca, initidx); 14049 mtx_unlock(&lun->lun_lock); 14050 14051bailout: 14052 mtx_unlock(&ctl_softc->ctl_lock); 14053 14054 ctl_free_io(io); 14055 14056 return (CTL_RETVAL_COMPLETE); 14057} 14058#endif 14059 14060/* 14061 * Primary command inlet from frontend ports. All SCSI and task I/O 14062 * requests must go through this function. 14063 */ 14064int 14065ctl_queue(union ctl_io *io) 14066{ 14067 struct ctl_softc *ctl_softc; 14068 14069 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 14070 14071 ctl_softc = control_softc; 14072 14073#ifdef CTL_TIME_IO 14074 io->io_hdr.start_time = time_uptime; 14075 getbintime(&io->io_hdr.start_bt); 14076#endif /* CTL_TIME_IO */ 14077 14078 /* Map FE-specific LUN ID into global one. */ 14079 io->io_hdr.nexus.targ_mapped_lun = 14080 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 14081 14082 switch (io->io_hdr.io_type) { 14083 case CTL_IO_SCSI: 14084 case CTL_IO_TASK: 14085 ctl_enqueue_incoming(io); 14086 break; 14087 default: 14088 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 14089 return (EINVAL); 14090 } 14091 14092 return (CTL_RETVAL_COMPLETE); 14093} 14094 14095#ifdef CTL_IO_DELAY 14096static void 14097ctl_done_timer_wakeup(void *arg) 14098{ 14099 union ctl_io *io; 14100 14101 io = (union ctl_io *)arg; 14102 ctl_done(io); 14103} 14104#endif /* CTL_IO_DELAY */ 14105 14106void 14107ctl_done(union ctl_io *io) 14108{ 14109 struct ctl_softc *ctl_softc; 14110 14111 ctl_softc = control_softc; 14112 14113 /* 14114 * Enable this to catch duplicate completion issues. 14115 */ 14116#if 0 14117 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 14118 printf("%s: type %d msg %d cdb %x iptl: " 14119 "%d:%d:%d:%d tag 0x%04x " 14120 "flag %#x status %x\n", 14121 __func__, 14122 io->io_hdr.io_type, 14123 io->io_hdr.msg_type, 14124 io->scsiio.cdb[0], 14125 io->io_hdr.nexus.initid.id, 14126 io->io_hdr.nexus.targ_port, 14127 io->io_hdr.nexus.targ_target.id, 14128 io->io_hdr.nexus.targ_lun, 14129 (io->io_hdr.io_type == 14130 CTL_IO_TASK) ? 14131 io->taskio.tag_num : 14132 io->scsiio.tag_num, 14133 io->io_hdr.flags, 14134 io->io_hdr.status); 14135 } else 14136 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14137#endif 14138 14139 /* 14140 * This is an internal copy of an I/O, and should not go through 14141 * the normal done processing logic. 14142 */ 14143 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14144 return; 14145 14146 /* 14147 * We need to send a msg to the serializing shelf to finish the IO 14148 * as well. We don't send a finish message to the other shelf if 14149 * this is a task management command. Task management commands 14150 * aren't serialized in the OOA queue, but rather just executed on 14151 * both shelf controllers for commands that originated on that 14152 * controller. 14153 */ 14154 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14155 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14156 union ctl_ha_msg msg_io; 14157 14158 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14159 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14160 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14161 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14162 } 14163 /* continue on to finish IO */ 14164 } 14165#ifdef CTL_IO_DELAY 14166 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14167 struct ctl_lun *lun; 14168 14169 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14170 14171 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14172 } else { 14173 struct ctl_lun *lun; 14174 14175 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14176 14177 if ((lun != NULL) 14178 && (lun->delay_info.done_delay > 0)) { 14179 struct callout *callout; 14180 14181 callout = (struct callout *)&io->io_hdr.timer_bytes; 14182 callout_init(callout, /*mpsafe*/ 1); 14183 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14184 callout_reset(callout, 14185 lun->delay_info.done_delay * hz, 14186 ctl_done_timer_wakeup, io); 14187 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14188 lun->delay_info.done_delay = 0; 14189 return; 14190 } 14191 } 14192#endif /* CTL_IO_DELAY */ 14193 14194 ctl_enqueue_done(io); 14195} 14196 14197int 14198ctl_isc(struct ctl_scsiio *ctsio) 14199{ 14200 struct ctl_lun *lun; 14201 int retval; 14202 14203 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14204 14205 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14206 14207 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14208 14209 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14210 14211 return (retval); 14212} 14213 14214 14215static void 14216ctl_work_thread(void *arg) 14217{ 14218 struct ctl_thread *thr = (struct ctl_thread *)arg; 14219 struct ctl_softc *softc = thr->ctl_softc; 14220 union ctl_io *io; 14221 int retval; 14222 14223 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14224 14225 for (;;) { 14226 retval = 0; 14227 14228 /* 14229 * We handle the queues in this order: 14230 * - ISC 14231 * - done queue (to free up resources, unblock other commands) 14232 * - RtR queue 14233 * - incoming queue 14234 * 14235 * If those queues are empty, we break out of the loop and 14236 * go to sleep. 14237 */ 14238 mtx_lock(&thr->queue_lock); 14239 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14240 if (io != NULL) { 14241 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14242 mtx_unlock(&thr->queue_lock); 14243 ctl_handle_isc(io); 14244 continue; 14245 } 14246 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14247 if (io != NULL) { 14248 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14249 /* clear any blocked commands, call fe_done */ 14250 mtx_unlock(&thr->queue_lock); 14251 retval = ctl_process_done(io); 14252 continue; 14253 } 14254 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14255 if (io != NULL) { 14256 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14257 mtx_unlock(&thr->queue_lock); 14258 if (io->io_hdr.io_type == CTL_IO_TASK) 14259 ctl_run_task(io); 14260 else 14261 ctl_scsiio_precheck(softc, &io->scsiio); 14262 continue; 14263 } 14264 if (!ctl_pause_rtr) { 14265 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14266 if (io != NULL) { 14267 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14268 mtx_unlock(&thr->queue_lock); 14269 retval = ctl_scsiio(&io->scsiio); 14270 if (retval != CTL_RETVAL_COMPLETE) 14271 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14272 continue; 14273 } 14274 } 14275 14276 /* Sleep until we have something to do. */ 14277 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14278 } 14279} 14280 14281static void 14282ctl_lun_thread(void *arg) 14283{ 14284 struct ctl_softc *softc = (struct ctl_softc *)arg; 14285 struct ctl_be_lun *be_lun; 14286 int retval; 14287 14288 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14289 14290 for (;;) { 14291 retval = 0; 14292 mtx_lock(&softc->ctl_lock); 14293 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14294 if (be_lun != NULL) { 14295 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14296 mtx_unlock(&softc->ctl_lock); 14297 ctl_create_lun(be_lun); 14298 continue; 14299 } 14300 14301 /* Sleep until we have something to do. */ 14302 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14303 PDROP | PRIBIO, "-", 0); 14304 } 14305} 14306 14307static void 14308ctl_enqueue_incoming(union ctl_io *io) 14309{ 14310 struct ctl_softc *softc = control_softc; 14311 struct ctl_thread *thr; 14312 u_int idx; 14313 14314 idx = (io->io_hdr.nexus.targ_port * 127 + 14315 io->io_hdr.nexus.initid.id) % worker_threads; 14316 thr = &softc->threads[idx]; 14317 mtx_lock(&thr->queue_lock); 14318 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14319 mtx_unlock(&thr->queue_lock); 14320 wakeup(thr); 14321} 14322 14323static void 14324ctl_enqueue_rtr(union ctl_io *io) 14325{ 14326 struct ctl_softc *softc = control_softc; 14327 struct ctl_thread *thr; 14328 14329 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14330 mtx_lock(&thr->queue_lock); 14331 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14332 mtx_unlock(&thr->queue_lock); 14333 wakeup(thr); 14334} 14335 14336static void 14337ctl_enqueue_done(union ctl_io *io) 14338{ 14339 struct ctl_softc *softc = control_softc; 14340 struct ctl_thread *thr; 14341 14342 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14343 mtx_lock(&thr->queue_lock); 14344 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14345 mtx_unlock(&thr->queue_lock); 14346 wakeup(thr); 14347} 14348 14349static void 14350ctl_enqueue_isc(union ctl_io *io) 14351{ 14352 struct ctl_softc *softc = control_softc; 14353 struct ctl_thread *thr; 14354 14355 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14356 mtx_lock(&thr->queue_lock); 14357 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14358 mtx_unlock(&thr->queue_lock); 14359 wakeup(thr); 14360} 14361 14362/* Initialization and failover */ 14363 14364void 14365ctl_init_isc_msg(void) 14366{ 14367 printf("CTL: Still calling this thing\n"); 14368} 14369 14370/* 14371 * Init component 14372 * Initializes component into configuration defined by bootMode 14373 * (see hasc-sv.c) 14374 * returns hasc_Status: 14375 * OK 14376 * ERROR - fatal error 14377 */ 14378static ctl_ha_comp_status 14379ctl_isc_init(struct ctl_ha_component *c) 14380{ 14381 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14382 14383 c->status = ret; 14384 return ret; 14385} 14386 14387/* Start component 14388 * Starts component in state requested. If component starts successfully, 14389 * it must set its own state to the requestrd state 14390 * When requested state is HASC_STATE_HA, the component may refine it 14391 * by adding _SLAVE or _MASTER flags. 14392 * Currently allowed state transitions are: 14393 * UNKNOWN->HA - initial startup 14394 * UNKNOWN->SINGLE - initial startup when no parter detected 14395 * HA->SINGLE - failover 14396 * returns ctl_ha_comp_status: 14397 * OK - component successfully started in requested state 14398 * FAILED - could not start the requested state, failover may 14399 * be possible 14400 * ERROR - fatal error detected, no future startup possible 14401 */ 14402static ctl_ha_comp_status 14403ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14404{ 14405 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14406 14407 printf("%s: go\n", __func__); 14408 14409 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14410 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14411 ctl_is_single = 0; 14412 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14413 != CTL_HA_STATUS_SUCCESS) { 14414 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14415 ret = CTL_HA_COMP_STATUS_ERROR; 14416 } 14417 } else if (CTL_HA_STATE_IS_HA(c->state) 14418 && CTL_HA_STATE_IS_SINGLE(state)){ 14419 // HA->SINGLE transition 14420 ctl_failover(); 14421 ctl_is_single = 1; 14422 } else { 14423 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14424 c->state, state); 14425 ret = CTL_HA_COMP_STATUS_ERROR; 14426 } 14427 if (CTL_HA_STATE_IS_SINGLE(state)) 14428 ctl_is_single = 1; 14429 14430 c->state = state; 14431 c->status = ret; 14432 return ret; 14433} 14434 14435/* 14436 * Quiesce component 14437 * The component must clear any error conditions (set status to OK) and 14438 * prepare itself to another Start call 14439 * returns ctl_ha_comp_status: 14440 * OK 14441 * ERROR 14442 */ 14443static ctl_ha_comp_status 14444ctl_isc_quiesce(struct ctl_ha_component *c) 14445{ 14446 int ret = CTL_HA_COMP_STATUS_OK; 14447 14448 ctl_pause_rtr = 1; 14449 c->status = ret; 14450 return ret; 14451} 14452 14453struct ctl_ha_component ctl_ha_component_ctlisc = 14454{ 14455 .name = "CTL ISC", 14456 .state = CTL_HA_STATE_UNKNOWN, 14457 .init = ctl_isc_init, 14458 .start = ctl_isc_start, 14459 .quiesce = ctl_isc_quiesce 14460}; 14461 14462/* 14463 * vim: ts=8 14464 */ 14465